阅读说明：本技术 散热装置、控制装置及使用其控制的无人机 (Heat abstractor, controlling means and use unmanned aerial vehicle of its control ) 是由 孙宏涛 王波 李兆亮 于 2021-09-28 设计创作，主要内容包括：本发明公开一种散热装置,包括：风扇,具有进风口和出风口；集热引风通道,包括第一进口和第一出口以及与第一进口和第一出口连接的集热引风通道壁,第一出口与风扇的进风口气密连通,第一进口用于引入由风扇吸入的气流,集热引风通道限定仅包括第一进口和第一出口的包封空间,用于连接到第一热源或将至少第一热源容纳在其通道内。本发明还公开了包括散热装置的控制装置及使用该控制装置进行控制的无人机。本发明能够将多个热源散发的热收集在风扇的至少进风气流流动经过的封围通道,快速有效地同时将多个热源散发的热量引导离开,增大风扇引起的气流的有效散热接触面积,由此提高散热装置的散热效率和结构紧凑性、提高控制装置和无人机的可靠性。(The invention discloses a heat dissipating double-fuselage, comprising: the fan is provided with an air inlet and an air outlet; and a heat collecting and inducing channel including a first inlet and a first outlet and a heat collecting and inducing channel wall connected to the first inlet and the first outlet, the first outlet being in airtight communication with the air inlet of the fan, the first inlet being for introducing the air flow drawn by the fan, the heat collecting and inducing channel defining an enclosed space including only the first inlet and the first outlet for connecting to a first heat source or accommodating at least the first heat source within the channel thereof. The invention also discloses a control device comprising the heat dissipation device and an unmanned aerial vehicle controlled by the control device. The heat dissipation device can collect heat dissipated by a plurality of heat sources in the enclosed channel through which at least air inlet airflow of the fan flows, quickly and effectively guide away the heat dissipated by the heat sources at the same time, and increase the effective heat dissipation contact area of the airflow caused by the fan, so that the heat dissipation efficiency and the structure compactness of the heat dissipation device are improved, and the reliability of the control device and the unmanned aerial vehicle is improved.)

1. A heat dissipating device, comprising:

the fan is provided with an air inlet and an air outlet;

a heat collecting air inducing channel comprising a first inlet and a first outlet in air tight communication with the air inlet of the fan, the first inlet for introducing an air flow drawn by the fan, and a heat collecting air inducing channel wall connected to the first inlet and the first outlet, the heat collecting air inducing channel defining an enclosed space including only the first inlet and the first outlet, the heat collecting air inducing channel for connecting to or accommodating at least a first heat source within its channel.

2. The heat dissipating device of claim 1, further comprising a heat dissipating air supply channel comprising a second inlet and a second outlet, the second inlet communicating with the air outlet of the fan, and a heat dissipating air supply channel wall connecting the second inlet and the second outlet, the second outlet for exhausting the air flow drawn by the fan, the heat dissipating air supply channel for transferring away the heat collected by the heat collecting air inducing channel and the heat generated by the second heat source.

3. The heat dissipating device of claim 2, wherein the fan is a centrifugal fan, the air inlet of the fan is disposed along the axial direction of the fan, the air outlet of the fan is disposed at the side portion, and the heat dissipating air supply channel and the heat collecting air inducing channel are disposed at different levels.

4. The heat dissipating device of any of claims 1 to 3, wherein the heat collection air induction channel is configured to receive at least the first heat source within its channel, and the first heat source is mounted on a first heat source support, the fan is mounted on a fan support, the first heat source support and the fan support are configured to form at least a portion of the heat collection air induction channel wall, and the fan support and the first heat source support are enclosed therebetween by a sealant wall that encloses an air intake of the fan and at least the first heat source, wherein the first inlet opens into the sealant wall, and a portion of the sealant wall surrounding the air intake of the fan forms the first outlet.

5. The heat dissipating device of claim 2 or 3, wherein at least a portion of the heat dissipating air supply passage is comprised of a heat sink for connection to the second heat source.

6. The heat dissipating device of claim 5, wherein the heat sink comprises a heat sink base and a plurality of first fins extending upright from the heat sink base and extending in an outlet air direction of the fan, and/or a plurality of second fins extending downstream from the first fins at a predetermined angle to the outlet air direction.

7. The heat dissipating device of claim 6, further comprising a heat sink closure cap for closing a top of the heat sink and defining with the heat sink air supply passage defining an enclosed space including only the second inlet and the second outlet, the second inlet being an upstream end of the first fin, a downstream end of the second fin being a through opening in a direction of extension of the second fin and/or a closed end having an inclined surface in a direction of extension of the second fin, the second outlet being a through opening of a downstream end of the second fin and/or an opening provided on the closure cap corresponding in position to the closed end of the downstream end of the second fin.

8. The heat dissipating device of claim 7, wherein the second inlet of the heat dissipating air supply channel is in air tight communication with the air outlet of the fan.

9. The heat dissipating device of claim 7, wherein a diverter fin is disposed between the downstream end of the first fin and the upstream end of the second fin, the diverter fin having a chevron shape at a middle portion and arcuate shape at both sides as viewed toward the bottom of the fin; the converging end of the herringbone corresponds to the upstream end of the turning part cooling fin, and the diverging end of the herringbone corresponds to two downstream ends of the turning part cooling fin respectively; the downstream end of the first fin is aligned with the upstream end of the diverter fin, and the upstream end of the second fin is aligned with the downstream end of the diverter fin.

10. The heat sink of claim 9, wherein the downstream end of the first fin and the upstream end of the diverter fin have a cutoff therebetween; and/or a cut-off part is arranged between the upstream end of the second cooling fin and the closed end part with the inclined surface; the cutoff portion is for evenly distributing the airflow between the downstream fins adjacent to the cutoff portion.

11. A control device comprising a housing and a first heat source and a heat sink disposed within the housing, the heat sink comprising:

the fan is provided with an air inlet and an air outlet;

a heat collecting air inducing channel comprising a first inlet and a first outlet in air tight communication with the air inlet of the fan, the first inlet for introducing an air flow drawn by the fan, and a heat collecting air inducing channel wall connected to the first inlet and the first outlet, the heat collecting air inducing channel defining an enclosed space including only the first inlet and the first outlet, the heat collecting air inducing channel for connecting to or accommodating at least a first heat source within its channel.

12. The control device of claim 11, wherein the control device further comprises a second heat source, the heat dissipation device further comprises a heat dissipation air supply channel, the heat dissipation air supply channel is used for being connected to the second heat source, the heat dissipation air supply channel comprises a second inlet and a second outlet and a heat dissipation air supply channel wall connected with the second inlet and the second outlet, the second inlet is communicated with an air outlet of the fan, the second outlet is used for discharging air flow sucked by the fan, and the heat dissipation air supply channel is used for transmitting heat collected by the heat collection air guide channel and heat emitted by the second heat source away.

13. The control device of claim 12, further comprising a first plate and a second plate disposed within the housing, wherein the fan is mounted on the first plate, and the air inlet and the air outlet of the fan are respectively located on two sides of the first plate; the first heat source is mounted on the second plate body, the heat collection and air induction channel wall is composed of a part of the first plate body, a part of the second plate body and a sealing medium wall arranged between the first plate body and the second plate body and used for enclosing the first heat source and the air inlet of the fan, the first inlet is formed in the sealing medium wall, and the part of the sealing medium wall surrounding the air inlet of the fan is formed into the first outlet.

14. The control device of claim 13, wherein the second heat source is mounted on the same side of the first plate as an outlet of the fan, at least a portion of the heat dissipating air supply duct is comprised of a heat sink for connection to the second heat source, and the outlet of the fan is aligned with the heat sink.

15. The control device of claim 13, further comprising a third plate on the same side of the first plate as an outlet of the fan, the second heat source being mounted on the third plate, at least a portion of the heat dissipating air supply duct being comprised of a heat sink for connection to the second heat source, and the outlet of the fan being aligned with the heat sink.

16. The control device of claim 14 or 15, wherein the heat sink comprises a heat sink base and a plurality of first fins projecting upright from the heat sink base and extending in the fan outlet direction, and/or a plurality of second fins extending downstream from the first fins at a predetermined angle to the outlet direction.

17. The control device according to claim 16, wherein the heat dissipating device further comprises a heat sink closing cap for closing a top of the heat sink and defining, together with the heat sink, the heat sink air supply passage defining an enclosed space including only the second inlet and the second outlet, the second inlet being an upstream end of the first fin, a downstream end of the second fin being a through opening in an extending direction of the second fin and/or a closed end having an inclined surface in the extending direction of the second fin, and the second outlet being a through opening of a downstream end of the second fin and/or an opening provided on the heat sink closing cap in a position corresponding to the closed end of the downstream end of the second fin.

18. The control device of claim 17, wherein the second inlet of the heat dissipating air supply channel is in air tight communication with an air outlet of the fan.

19. The control device according to claim 17, wherein a turn portion fin is provided between a downstream end of the first fin and an upstream end of the second fin, the turn portion fin having a chevron shape at a middle portion and arc-shaped at both sides as viewed in a direction toward a bottom of the fin; the converging end of the herringbone corresponds to the upstream end of the turning part cooling fin, and the diverging end of the herringbone corresponds to two downstream ends of the turning part cooling fin respectively; the downstream end of the first fin is aligned with the upstream end of the diverter fin, and the upstream end of the second fin is aligned with the downstream end of the diverter fin.

20. The control device of claim 19, wherein a cutoff portion is provided between a downstream end of the first fin and an upstream end of the diverter fin; and/or a cut-off part is arranged between the upstream end of the second cooling fin and the closed end part with the inclined surface; the cutoff portion is for evenly distributing the airflow between the downstream fins adjacent to the cutoff portion.

21. The control device of claim 17, wherein the housing includes a top portion, a bottom portion, and a side portion connecting the top portion and the bottom portion, the top portion includes a display screen, the display screen is mounted on the second plate, the first heat source is a display chip for driving the display screen, the second heat source is a graphics chip for communicating with a graphics device, the side portion of the housing is provided with an air outlet B corresponding to a through opening at a downstream end of the second heat sink and/or the bottom portion of the housing is provided with an air outlet a corresponding to an opening on the closed top cover of the heat sink, the bottom portion is further provided with an air inlet, and the air inlet is configured to allow external air to enter the interior of the housing and enter the first inlet of the heat collecting air inducing channel when the fan is turned on.

22. The control device of claim 21, wherein the sealing medium wall includes a first channel extending along a width direction of the housing and a second channel extending along a length direction of the housing, the second channel has one end surrounding the fan inlet and the other end communicating with the first channel, the first inlet includes a first inlet a and a first inlet B, the first inlet a and the first inlet B are respectively opened at two ends of the first channel, the external air enters the interior of the housing from the air inlet on the bottom of the housing and then enters the first channel via the first inlet a and the first inlet B, respectively, and a portion of the second channel surrounding the fan inlet constitutes the first outlet.

23. An unmanned aerial vehicle, characterized in that it is controlled using the control device of any one of claims 11-22.

Technical Field

The invention relates to the field of unmanned aerial vehicle control, in particular to an improved heat dissipation device, a control device comprising the heat dissipation device and an unmanned aerial vehicle controlled by the control device.

Background

Unmanned aerial vehicles are unmanned aerial vehicles operated by a control device, and are widely applied to the fields of aerial photography, agriculture, disaster relief, surveying and mapping, shooting and the like due to the characteristics of the unmanned aerial vehicles.

With the progress of science and technology, the unmanned aerial vehicle remote controller integrates multiple functions of unmanned aerial vehicle body control, data processing, image transmission and display, communication and the like, and a plurality of heat sources such as chips related to the functions exist. Especially, during the use period of the unmanned aerial vehicle, a large amount of data processing and data transmission are required between the unmanned aerial vehicle body and the control device, so that a large amount of heat can be generated by related chips in the control device, and the relatively small size of the control device is not beneficial to heat dissipation of a plurality of heat sources in the control device. The performance of the control device is significantly reduced due to the accumulation of heat, and therefore how to quickly and effectively realize the simultaneous heat dissipation of a plurality of heat sources is an urgent technical problem to be solved by the conventional control device.

Disclosure of Invention

The invention aims to provide an improved heat dissipation device, a control device comprising the heat dissipation device and an unmanned aerial vehicle controlled by the control device to solve or alleviate the technical problems.

According to an aspect of the present invention, there is provided a heat dissipating device including:

the fan is provided with an air inlet and an air outlet;

a heat collecting air inducing channel comprising a first inlet and a first outlet in air tight communication with the air inlet of the fan, the first inlet for introducing an air flow drawn by the fan, and a heat collecting air inducing channel wall connected to the first inlet and the first outlet, the heat collecting air inducing channel defining an enclosed space including only the first inlet and the first outlet, the heat collecting air inducing channel for connecting to or accommodating at least a first heat source within its channel.

The heat dissipation device can collect heat dissipated by a plurality of heat sources in a heat collection air inducing channel in a centralized manner, at least air inlet flow of the fan is guided to the heat collection air inducing channel in a directional manner, the air inlet flow of the fan is fully utilized, heat dissipated by the heat sources is guided away quickly and effectively at the same time, and therefore the effective heat dissipation contact area of the air flow caused by the fan is increased.

Optionally, the heat dissipation device further includes a heat dissipation air supply channel, the heat dissipation air supply channel includes a second inlet and a second outlet, and a heat dissipation air supply channel wall connecting the second inlet and the second outlet, the second inlet is communicated with the air outlet of the fan, the second outlet is used for discharging the air flow sucked by the fan, and the heat dissipation air supply channel is used for transferring the heat collected by the heat collection air induction channel and the heat generated by the second heat source away.

The downstream of the fan is provided with a heat dissipation air supply channel, so that the heat dissipation area of the heat dissipation device can be increased, and the heat dissipation efficiency is improved.

Optionally, the fan is a centrifugal fan, an air inlet of the fan is axially arranged along the fan, an air outlet of the fan is arranged on a side portion, and the heat dissipation air supply channel and the heat collection air inducing channel are arranged on different horizontal planes.

The heat dissipation air supply channel and the heat collection air inducing channel are stacked in different horizontal planes, so that the structure of the heat dissipation device is more compact.

Optionally, the heat collecting air inducing channel is used for accommodating at least the first heat source in the channel thereof, the first heat source is mounted on a first heat source support, the fan is mounted on a fan support, the first heat source support and the fan support can form at least one part of the heat collecting air inducing channel wall, the fan support and the first heat source support are enclosed by a sealing medium wall, the sealing medium wall encloses an air inlet of the fan and at least the first heat source, the first inlet is arranged on the sealing medium wall, and the part of the sealing medium wall surrounding the air inlet of the fan forms the first outlet.

The heat sink of the present invention may be formed of a portion of the heat source supporter or a portion of the fan supporter, so that the structure is more compact while improving heat dissipation efficiency.

Optionally, at least a portion of the heat dissipating air supply passage is formed by a heat sink for connection to the second heat source.

When the radiator forms a part of the heat radiation air supply channel, the heat of the second heat source is conducted to the radiator, so that the radiator can also play a role in collecting the heat of the second heat source.

Optionally, the heat sink includes a heat sink bottom and a plurality of first fins extending upright from the heat sink bottom and extending in an air-out direction of the fan, and/or a plurality of second fins extending downstream of the first fins at a predetermined angle to the air-out direction.

The radiating fins and the trend of the radiating fins of the radiator can be designed according to the distribution position and the airflow trend of an actual heat source.

Optionally, the heat dissipation device further includes a heat sink closing top cover configured to close a top of the heat sink and define the heat sink air supply passage together with the heat sink, the heat sink air supply passage defines an enclosure space including only the second inlet and the second outlet, the second inlet is an upstream end of the first fin, a downstream end of the second fin is a through opening along an extending direction of the second fin and/or a closed end portion having an inclined surface along the extending direction of the second fin, and the second outlet is a through opening of a downstream end of the second fin and/or an opening provided on the closing top cover corresponding to a position of the closed end portion of the downstream end of the second fin.

The heat dissipation air supply channel which is formed by the heat radiator and the heat radiator closed top cover and only comprises the second inlet and the second outlet can further improve the heat dissipation efficiency of the heat dissipation device.

Optionally, the second inlet of the heat dissipation air supply channel is in airtight communication with the air outlet of the fan.

The second inlet of the heat-dissipation air supply channel is in airtight communication with the air outlet of the fan, so that the heat-collection air-inducing channel and the heat-dissipation air supply channel define an encapsulation space only comprising the inlet and the outlet, and the heat dissipation efficiency of the heat dissipation device can be further improved.

Optionally, a turning part cooling fin is arranged between the downstream end of the first cooling fin and the upstream end of the second cooling fin, and when the turning part cooling fin is seen along the direction towards the bottom of the cooling fin, the middle part of the turning part cooling fin is in a herringbone shape, and two sides of the turning part cooling fin are in an arc shape; the converging end of the herringbone corresponds to the upstream end of the turning part cooling fin, and the diverging end of the herringbone corresponds to two downstream ends of the turning part cooling fin respectively; the downstream end of the first fin is aligned with the upstream end of the diverter fin, and the upstream end of the second fin is aligned with the downstream end of the diverter fin.

In the heat sink of the present invention, the heat sink fins are designed so that the air flow passing through the heat sink can pass through a plurality of heat sources dispersed at different positions.

Optionally, there is a truncation between the downstream end of the first fin and the upstream end of the turn section fin; and/or a cut-off part is arranged between the upstream end of the second cooling fin and the closed end part with the inclined surface; the cutoff portion is for evenly distributing the airflow between the downstream fins adjacent to the cutoff portion.

According to another aspect of the present invention, there is provided a control device including a housing, and a first heat source and a heat sink provided in the housing, the heat sink including:

the fan is provided with an air inlet and an air outlet;

a heat collecting air inducing channel comprising a first inlet and a first outlet in air tight communication with the air inlet of the fan, the first inlet for introducing an air flow drawn by the fan, and a heat collecting air inducing channel wall connected to the first inlet and the first outlet, the heat collecting air inducing channel defining an enclosed space including only the first inlet and the first outlet, the heat collecting air inducing channel for connecting to or accommodating at least a first heat source within its channel.

Optionally, the control device further includes a second heat source, the heat dissipation device further includes a heat dissipation air supply channel, the heat dissipation air supply channel is configured to be connected to the second heat source, the heat dissipation air supply channel includes a second inlet and a second outlet, and a heat dissipation air supply channel wall connecting the second inlet and the second outlet, the second inlet is communicated with the air outlet of the fan, the second outlet is configured to discharge the air flow sucked by the fan, and the heat dissipation air supply channel is configured to transfer away the heat collected by the heat collection air induction channel and the heat generated by the second heat source.

Optionally, the control device further includes a first plate and a second plate disposed in the housing, wherein the fan is mounted on the first plate, and the air inlet and the air outlet of the fan are respectively located at two sides of the first plate; the first heat source is mounted on the second plate body, the heat collection and air induction channel wall is composed of a part of the first plate body, a part of the second plate body and a sealing medium wall arranged between the first plate body and the second plate body and used for enclosing the first heat source and the air inlet of the fan, the first inlet is formed in the sealing medium wall, and the part of the sealing medium wall surrounding the air inlet of the fan is formed into the first outlet.

Optionally, the second heat source is mounted on the same side of the first plate as the air outlet of the fan, at least a part of the heat dissipation air supply channel is formed by a heat sink, the heat sink is used for being connected to the second heat source, and the air outlet of the fan is aligned with the heat sink.

Optionally, the control device further includes a third plate body located on the same side of the first plate body as the air outlet of the fan, the second heat source is mounted on the third plate body, at least a portion of the heat dissipation and air supply passage is formed by a heat sink, the heat sink is configured to be connected to the second heat source, and the air outlet of the fan is aligned with the heat sink.

Optionally, the heat sink includes a heat sink bottom and a plurality of first fins extending upright from the heat sink bottom and extending in the fan outlet air direction, and/or a plurality of second fins extending downstream of the first fins at a predetermined angle to the outlet air direction.

Optionally, the heat dissipating device further includes a heat sink closing top cover, the closing top cover is used for closing the top of the heat sink and defines the heat dissipating air supply channel together with the heat sink, the heat dissipating air supply channel defines an enclosure space including only the second inlet and the second outlet, the second inlet is an upstream end of the first heat sink, the downstream end of the second heat sink is a through opening along an extending direction of the second heat sink and/or a closed end portion having an inclined surface along the extending direction of the second heat sink, and the second outlet is a through opening of a downstream end of the second heat sink and/or an opening corresponding to the closed end portion of the downstream end of the second heat sink and provided on the heat sink closing top cover.

Optionally, the second inlet of the heat dissipation air supply channel is in airtight communication with the air outlet of the fan.

Optionally, a turning part cooling fin is arranged between the downstream end of the first cooling fin and the upstream end of the second cooling fin, and when the turning part cooling fin is seen along the direction towards the bottom of the cooling fin, the middle part of the turning part cooling fin is in a herringbone shape, and two sides of the turning part cooling fin are in an arc shape; the converging end of the herringbone corresponds to the upstream end of the turning part cooling fin, and the diverging end of the herringbone corresponds to two downstream ends of the turning part cooling fin respectively; the downstream end of the first fin is aligned with the upstream end of the diverter fin, and the upstream end of the second fin is aligned with the downstream end of the diverter fin.

Optionally, there is a truncation between the downstream end of the first fin and the upstream end of the turn section fin; and/or a cut-off part is arranged between the upstream end of the second cooling fin and the closed end part with the inclined surface; the cutoff portion is for evenly distributing the airflow between the downstream fins adjacent to the cutoff portion.

Optionally, the casing includes top, bottom and the lateral part of connecting top and bottom, the top includes the display screen, the display screen is installed on the second plate body, first heat source is the drive the display chip of display screen, the second heat source is the picture that passes the chip for passing equipment communication with the picture, the lateral part of casing be provided with the direct opening of the downstream end of second fin corresponds gas outlet B and/or the bottom of casing is provided with the gas outlet A that corresponds with the opening on the radiator closure top cap, still be provided with the air inlet on the bottom, the air inlet is used for when the fan is opened, makes outside air get into inside the casing, and get into the first import of thermal-arrest induced air passageway.

Optionally, the sealing medium wall includes a first channel extending along the width direction of the casing and a second channel extending along the length direction of the casing, one end of the second channel surrounds the fan inlet, and the other end of the second channel is communicated with the first channel, the first inlet includes a first inlet a and a first inlet B, the first inlet a and the first inlet B are respectively provided at two ends of the first channel, external air enters the inside of the casing from the air inlet on the bottom of the casing and then enters the first channel via the first inlet a and the first inlet B, respectively, and a portion of the second channel surrounding the fan inlet constitutes the first outlet.

According to another aspect of the invention, there is provided a drone controlled using the control device described above.

According to the heat dissipation device and the control device comprising the heat dissipation device, heat dissipated by the heat sources can be collected in the wrapping channel through which at least the inlet airflow of the fan flows, the heat dissipated by the heat sources can be quickly and effectively guided away at the same time, the effective heat dissipation contact area of the airflow caused by the fan is increased, and therefore the heat dissipation efficiency and the structural compactness of the heat dissipation device are improved, and the reliability of the control device is improved. Control through using above-mentioned controlling means, improved unmanned aerial vehicle's reliability.

Drawings

FIG. 1 is a perspective view of a control device according to an embodiment of the present invention;

FIG. 2 is a perspective view of a control device according to an embodiment of the present invention from the bottom and upper side;

FIG. 3 is a perspective view of a control device according to an embodiment of the present invention, viewed from the bottom and lower side;

FIG. 4 is an exploded perspective view of the control device shown in FIGS. 2 and 3;

FIG. 5 is an exploded perspective view of FIG. 4 with irrelevant parts removed to show only relevant parts of a heat collecting and inducing passage constituting a heat dissipating device according to an embodiment of the present invention;

FIG. 6 is a view, before being disassembled, of the disassembled perspective view shown in FIG. 5 and viewed from the bottom with the fan attached, showing a section A-A along the heat collecting inducing air passage through the first inlet A;

FIG. 7 is a view from the bottom of FIG. 6 with the main plate and fan removed showing a cut-away path taken by section A-A after the main plate and fan have been removed;

FIG. 8 is a perspective cross-sectional view taken along section A-A shown in FIG. 6;

FIG. 9 is a view, before being disassembled, of the disassembled perspective view shown in FIG. 5 and viewed from the bottom with the fan attached, showing a section B-B passing through the first inlet B along the heat collecting wind inducing passage;

FIG. 10 is a view from the bottom of FIG. 5 with the main plate and fan removed, showing a cut-away path of section B-B after removal of the main plate and fan;

fig. 11 is a perspective sectional view from the bottom and the upper side taken along the section B-B shown in fig. 9;

FIG. 12 is a perspective cross-sectional view from the bottom and lower side taken along section B-B shown in FIG. 9;

FIG. 13 is an exploded perspective view of the components shown in FIGS. 6 and 9 with the heat sink and heat sink closure cap attached and the heat sink closure cap exploded;

FIG. 14 is a perspective view of a heat sink according to an embodiment of the present invention;

FIG. 15 is a perspective view of an assembled heat sink and heat sink closure cap according to the present invention.

1-control device, 10-housing, 11-bottom, 111-outlet a, 112-inlet, 12-side, 121-outlet B, 13-top, 131-display screen, 132-display chip, 14-first plate, 15-second plate, 16-third plate, 161-picture chip, 17-fan, 171-air inlet, 172-air outlet, 100-heat collection induced air channel, 101-sealing medium wall, 102-first inlet a, 103-first outlet, 104-first inlet B, 18-radiator, 181-closed end, 182-through opening, 183-second inlet, 184-first fin, 185-turning part fin, 186-second fin, 187-cutting part, 188-radiator bottom, 19-radiator closed top cover, 191-opening on the radiator closed top cover, 200-radiating air supply channel, 20-antenna, 201-antenna mounting part.

Detailed Description

The present invention is described in further detail below. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

Fig. 1 is a perspective view of a control device according to an embodiment of the present invention, fig. 2 is a perspective view of the control device according to the embodiment of the present invention as viewed from the bottom and upper side portions, and fig. 3 is a perspective view of the control device according to the embodiment of the present invention as viewed from the bottom and lower side portions. Fig. 1 to 3 show the external appearance and external structure of a control device according to an embodiment of the present invention, and referring to fig. 1 to 3, it can be seen that the control device is denoted by reference numeral 1, the control device 1 includes a housing 10, the housing 10 includes a top 13, a bottom 11, and a side 12 connecting the top 13 and the bottom 11, and the top 13 includes a display screen 131. The control device 1 of fig. 1 further comprises an antenna 20, and for simplicity of illustration, the antenna 20 of the control device 1 is not shown in subsequent figures. With further reference to fig. 2, it can be seen that an antenna mounting portion 201 is provided on the upper side of the side portion 12 for mounting the antenna 20, an air inlet 112 and an air outlet a, indicated by reference numeral 111, are provided on the bottom portion 11 of the housing 10, and an air outlet B, indicated by reference numeral 121, is also provided on the upper side of the side portion 12 of the housing 10. As can also be seen from fig. 3, the left and right side portions of the control device 1 are not provided with functional parts for the convenience of the user's hand.

The control device 1 according to the present invention is generally used for controlling an unmanned aerial vehicle, a pan/tilt/zoom (pan/tilt/zoom) device, a camera and/or a head display device, etc., the control device 1 needs to perform a large amount of data processing and data transmission with the devices controlled by the control device 1, a large amount of heat is generated by relevant chips in the control device 1, and a large amount of heat is also generated by a power supply or other heat sources in the control device 1, so that an improved heat dissipation device is needed to alleviate or eliminate the influence of the heat dissipated on the performance of the control device 1, and the performance of the control device 1 is further improved or maintained.

The control device 1 of the present invention further comprises a heat source and a heat sink disposed within the housing 10. The heat dissipating device according to an embodiment of the present invention includes a fan 17 and a heat collecting and inducing passage 100, wherein the fan 17 has an air inlet 171 and an air outlet 172. The heat collecting air inducing channel 100 comprises a first inlet and a first outlet 103 and a heat collecting air inducing channel wall connected with the first inlet and the first outlet 103, the first outlet 103 is in airtight communication with an air inlet of the fan 17, the first inlet is used for introducing air flow sucked by the fan 17, the heat collecting air inducing channel 100 defines an enclosed space only comprising the first inlet and the first outlet 103, and the heat collecting air inducing channel 100 is used for connecting to a first heat source or accommodating at least the first heat source in the channel thereof. The principle of the invention lies in that the heat dissipation device is provided with a heat collection induced air channel 100 at the side of an air inlet 171 of a fan 17, namely the upstream side of the fan 17, external air is directionally guided and flows through the heat collection induced air channel 100 by the fan 17, the heat collection induced air channel 100 encapsulates a plurality of heating elements in the control device 1, heat generated by the plurality of heating elements is intensively collected in the heat collection induced air channel 100, the heat is taken away by the external air which is directionally guided and flows through the heat collection induced air channel 100, and then the heat is blown to the outside of the control device 1 by the fan 17, thereby achieving the purpose of heat dissipation.

In this way, the heat dissipation device according to the present invention can collect heat generated by a plurality of heat sources dispersedly disposed at different positions in the control device 1, and direct the flow of the external air, pass through the heat collecting and air inducing channel 100 that collects heat generated by the plurality of heat sources, take away the collected heat from the passing external air, and blow the heat to the outside of the control device 1 by the fan 17, so that the heat dissipation device can quickly and effectively dissipate the heat generated by the plurality of heat sources inside the control device 1 at the same time.

Furthermore, the control device 1 according to the present invention may further include a second heat source, and the heat dissipating device according to the present invention may further include a heat dissipating air supply passage 200, the heat dissipating air supply passage 200 including a second inlet 183 and a second outlet, and a heat dissipating air supply passage wall connecting the second inlet 183 and the second outlet, the second inlet 183 being in communication with the air outlet 171 of the fan 17, the second outlet being for discharging the air current drawn by the fan 17, the heat dissipating air supply passage 200 being for transferring away the heat collected by the heat collecting air introduction passage 100 and the heat emitted by the second heat source.

In this way, the heat dissipation device according to the present invention can be configured to have a compact structure by providing the heat collecting air inducing passage 100 and the heat dissipating air supplying passage 200 on the upstream side and the downstream side of the fan 17, respectively, and can also increase the heat dissipating contact area of the heat dissipation device, so that the heat dissipation efficiency of the heat dissipation device according to the present invention can be improved, and thus the reliability of the control device 1 including the heat dissipation device can be improved, and the reliability of the unmanned aerial vehicle controlled by using the control device 1 can be improved.

Specific structures of the control device 1 according to the embodiment of the present invention and the heat dissipating device according to the embodiment of the present invention will be further described below with reference to fig. 4 to 15.

Fig. 4 is an exploded perspective view of the control device 1 shown in fig. 2 and 3 with the antenna 20 removed. As can be seen from fig. 4, the control device 1 further includes a first board 14 and a second board 15 disposed in the housing 10, the display screen 131 is mounted on the second board 15, and the first heat source is a display chip for driving the display screen 131. Specifically, the first board 14 is a main board body on which a main board chip is mounted, the second board 15 is a display screen fixing frame on which a display screen 131 (see fig. 8) and a display chip 132 (i.e., a first heat source, see fig. 7) for driving the display screen 131 are mounted, and as can be seen from the above description, the first heat source is mounted on the second board 15, and therefore, the second board 15 is also referred to as a first heat source supporting member.

The fan 17 is mounted on the first plate 14, the first plate 14 is also called a fan support member, and the air inlet 171 and the air outlet 172 of the fan 17 are respectively located on the upper and lower sides of the first plate 14 when the fan 17 is mounted in place, and are separated by the first plate 14; that is, the fan 17 is installed on the first plate 14, the air inlet 171 of the fan 17 is located at one side of the first plate 14, and the air outlet 172 of the fan 17 is located at the other side of the first plate 14. For example, the air inlet 171 of the fan 17 is located on a side of the first plate 14 close to the second plate 15, and the air outlet 172 of the fan 17 is located on a side of the first plate 14 away from the second plate 15. A sealing medium wall 101 is disposed between the first plate body 14 and the second plate body 15, a portion of the lower side of the first plate body 14, a portion of the upper side of the second plate body 15, and the sealing medium wall 101 disposed between the lower side of the first plate body 14 and the upper side of the second plate body 15 constitute at least a portion of a heat collecting air inducing channel wall of the heat collecting air inducing channel 100, that is, the heat collecting air inducing channel wall is composed of a portion of the first plate body 14, a portion of the second plate body 15, and a sealing medium wall 101 disposed between the first plate body 14 and the second plate body 15 and enclosing the first heat source and the air inlet of the fan 17, and the sealing medium wall 101 encloses the air inlet 171 of the fan 17 and the display chip mounted on the second plate body 15 as the first heat source. The sealing medium wall 101 is provided with a first inlet of the heat collecting air inducing channel 100, namely, the first inlet is opened on the sealing medium wall 101, the first inlet comprises a first inlet a indicated as 102 and a first inlet B indicated as 104, and a portion of the sealing medium wall 101 surrounding the air inlet 171 of the fan 17 forms a first outlet 103 of the heat collecting air inducing channel 100.

The lower side of the first plate 14 may be further provided with a motherboard chip as a third heat source, and the sealing medium wall 101 may also encapsulate the motherboard chip as the third heat source therein, so that the heat collecting and air inducing channel 100 may accommodate both the display chip as the first heat source and the motherboard chip as the third heat source in the channels thereof, collect heat emitted from the plurality of heat sources, and guide the collected heat away.

That is, the heat collecting and inducing passage 100 serves to accommodate at least a first heat source (and also a third heat source) within the passage thereof, and the first heat source is installed on the second plate body 15 as the first heat source support member, the fan 17 is installed on the first plate body 14 as the fan support member, a portion of the second plate body 15 as the first heat source support member and a portion of the first plate body 14 as the fan support member can constitute at least a portion of the heat collecting and inducing passage wall, and between the first plate 14 as a fan support and the second plate 15 as a first heat source support, a sealing medium wall 101 encloses the inlet 171 of the fan 17 and at least the first heat source therein, a first inlet (i.e., a first inlet a, indicated as 102, and a first inlet B, indicated as 104) opens in the sealant wall 101, and a portion of the sealant wall 101 surrounding the intake port 171 of the fan 17 constitutes a first outlet 103.

Fig. 5 is an exploded perspective view of fig. 4 with irrelevant parts removed to show only relevant parts of a heat collecting induced air passage constituting a heat dissipating device according to an embodiment of the present invention. Referring to fig. 5, it can be seen more clearly that the heat collecting and inducing passage 100 is formed by a portion of the first plate 14, a portion of the second plate 15, and a sealant wall 101 disposed between the first plate 14 and the second plate 15, the sealant wall 101 enclosing an air inlet 171 (shown in fig. 8) of the fan 17 and at least a first heat source therein, a first inlet a indicated by reference numeral 102 and a first inlet B indicated by reference numeral 104 being opened on the sealant wall 101, and a portion of the sealant wall 101 surrounding the air inlet 171 of the fan 17 forming a first outlet 103 of the heat collecting and inducing passage 100.

As can be further seen from fig. 4 and 5, in this embodiment, the sealing medium wall 101 includes a first channel extending along the width direction of the casing 10 and a second channel extending along the length direction of the casing 10, one end of the second channel surrounds the air inlet 171 of the fan 17, and the other end of the second channel is communicated with the first channel, and the first inlet a and the first inlet B of the heat collecting air inducing channel 100 are respectively opened at two ends of the first channel. With further reference to fig. 2 and 3, the air inlet 112 on the bottom 11 of the housing 10 of the control device 1 shown in fig. 2 and 3 is used for allowing external air to enter the inside of the housing 10 when the fan 17 is turned on, and to enter the first inlet (the first inlet includes a first inlet a indicated as 102 and a first inlet B indicated as 104) of the heat collecting air inducing passage 100, and the portion of the second passage surrounding the air inlet 171 of the fan 17 constitutes the first outlet 103.

FIG. 6 is a view, before being disassembled, of the disassembled perspective view shown in FIG. 5 and viewed from the bottom with the fan attached, showing a section A-A along the heat collecting inducing air passage through the first inlet A; FIG. 7 is a view from the bottom of FIG. 6 with the main plate and fan removed showing a cut-away path taken by section A-A after the main plate and fan have been removed; fig. 8 is a perspective sectional view taken along section a-a shown in fig. 6. Referring to fig. 8, and in conjunction with fig. 5 to 7, it can be seen that the external air is sucked by the operating fan 17 from the first inlet a, which is designated by reference numeral 102, into the heat collection air inducing channel 100 between the first plate body 14 and the second plate body 15, flows along the first channel of the heat collection air inducing channel 100 extending in the width direction toward the center line of the housing 10 of the control device 1 in the length direction, enters the second channel of the heat collection air inducing channel 100 extending in the length direction, then enters the fan 17 through the air inlet 171 of the fan 17, and then flows out through the air outlet 172 of the fan 17.

FIG. 9 is a view, before being disassembled, of the disassembled perspective view shown in FIG. 5 and viewed from the bottom with the fan attached, showing a section B-B passing through the first inlet B along the heat collecting wind inducing passage; FIG. 10 is a view from the bottom of FIG. 5 with the main plate and fan removed showing a cut-away path taken by section B-B after the main plate and fan have been removed; fig. 11 is a perspective sectional view from the bottom and the upper side taken along the section B-B shown in fig. 9; fig. 12 is a perspective cross-sectional view from the bottom and lower side taken along section B-B shown in fig. 9. Referring to fig. 11 and 12, in conjunction with fig. 5, 9 and 10, it can be seen that the external air is sucked by the operating fan 17 from the first inlet B, which is designated by reference numeral 104, into the heat collection and air induction passage 100 between the first plate body 14 and the second plate body 15, flows along the first passage extending in the width direction of the heat collection and air induction passage 100 toward the center line of the housing 10 of the control device 1 in the length direction, enters the second passage extending in the length direction of the heat collection and air induction passage 100, then enters the fan 17 through the air inlet 171 of the fan 17, and then flows out through the air outlet 172 of the fan 17.

With continued reference to fig. 4, in the present embodiment, the fan 17 is a centrifugal fan, the air inlet 171 of the fan 17 is disposed along the axial direction of the fan and is disposed at the bottom of the fan 17, and the air outlet 172 of the fan 17 is disposed at the side. In the present embodiment, the inside of the housing 10 of the control device 1 further includes a third plate 16, but the third plate 16 is optional. The third plate 16 is located on the same side of the first plate 14 as the air outlet 172 of the fan 17, and a second heat source is mounted on the third plate 16, the second heat source may be a drawing chip 161 communicating with a drawing device, and a main heat generating surface of the drawing chip 161 is mounted upward with respect to the view direction of fig. 4. The heat dissipation device further includes a heat dissipation air supply channel 200 communicated with the air outlet 172 of the fan 17, and the heat dissipation air supply channel 200 is used for being connected to the image transmission chip 161 serving as a second heat source. The heat dissipation air supply channel 200 and the heat collection air inducing channel 100 are disposed at different horizontal planes, and specifically, the heat dissipation air supply channel 200 and the heat collection air inducing channel 100 are separated by the first plate 14 and located at different horizontal planes. Therefore, the heat dissipation device according to the embodiment of the present invention can dissipate heat of heat sources in different horizontal planes simultaneously, so that the structure of the heat dissipation device is more compact, and meanwhile, the heat dissipation area is increased by using the external air flow channels upstream and downstream of the fan 17, i.e., the heat collection induced air channel 100 and the heat dissipation air supply channel 200, and at least the heat collection induced air channel 100 collects heat of heat sources in different positions in a concentrated manner, so as to guide the air flow through the collected heat in a directional manner, and blow out the outside of the housing 10 of the control device 1, thereby improving the heat dissipation efficiency.

With continued reference to fig. 4, it is shown that the inside of the casing 10 is also provided with the heat sink 18, at least a part of the heat dissipation air blowing passage 200 is constituted by the heat sink 18, the heat sink 18 is used for connecting to a second heat source, the heat dissipation air blowing passage 200 defines an enclosure including only the second inlet 183 and the second outlet, and the air outlet 172 of the fan 17 is aligned with the heat sink 18. Alternatively, the heat sink 18 is mounted in contact with the primary heat generating surface of the chip 161, i.e., connected to the primary heat generating surface of the chip 161 as the second heat source.

Fig. 13 is an exploded perspective view of the components shown in fig. 6 and 9 with the heat sink and heat sink closure top cover attached and the heat sink closure top cover exploded. Referring to fig. 13 in conjunction with fig. 4, it can be seen that, in the present embodiment, the heat dissipation air supply passage 200 is formed by the heat sink 18 and the heat sink closing top cover 19 (specifically, the heat sink closing top cover 19 is mounted on the top of the heat sink 18), and the heat sink 18 is connected to the second heat source (such as the image transmission chip 161). The heat dissipation air supply duct 200 defines an enclosure space including only the second inlet 183 and the second outlet (the second outlet including the through opening 182 of the heat sink 18 and the opening 191 of the heat sink closure cap), and the air outlet 172 of the fan 17 is aligned with the heat sink 18, more specifically, in the present embodiment, the air outlet 172 of the fan 17 is aligned with the second inlet 183 of the heat dissipation air supply duct 200, and the second inlet 183 of the heat dissipation air supply duct 200 is in air tight communication with the air outlet 172 of the fan 17.

It should be noted that the radiator closure cap 19 is optional, and the heat dissipation air supply duct 200 may not include the radiator closure cap 19, in which case the heat dissipation air supply duct 200 does not define an enclosed space including only the second inlet and the second outlet, but is an open duct.

Also indicated in fig. 4 are arrows indicating the flow of the external air, as seen in the direction indicated by the arrows, when the fan 17 is operated, the external air enters the inside of the housing 10 from the air inlet 112, then enters the first channel of the heat collecting draft passage 100 extending in the width direction of the housing 10 via the first inlet a indicated by 102 and the first inlet B indicated by 104 of the heat collecting draft passage 100, flows toward the axis extending in the length direction of the housing 10, enters the second channel of the heat collecting draft passage 100 extending in the length direction of the housing 10, enters the air inlet 171 of the fan 17 at the first outlet 103 of the portion of the second channel surrounding the air inlet 171 of the fan 17, passes through the fan 17, is blown out by the air outlet 172 of the fan 17, enters the heat dissipating air blowing passage 200 composed of the heat dissipating top cover 19 and the heat sink 18 assembled together via the second inlet 183 of the heat dissipating air blowing passage 200, from the through opening 182 of the radiator 18, through the air outlet B referenced 121 on the upper side of the corresponding housing 10 and from the opening 191 on the radiator closure cap through the air outlet a referenced 111 on the bottom of the corresponding housing 10.

Fig. 14 is a perspective view of a heat sink according to an embodiment of the present invention. As shown in fig. 14, the heat sink 18 includes a heat sink bottom 188 and a plurality of first fins 184 that extend upright from the heat sink bottom 188 and extend in the air-out direction of the fan 17; the heat sink 18 further includes a plurality of second fins 186 extending downstream of the first fins 184 at a predetermined angle to the air-out direction, the second fins 186 including two collinear branches, and a diverter fin 185 disposed between a downstream end of the first fin 184 and an upstream end of the two collinear branches of the second fins 186. The preset angle may be set between 0 and 90 degrees according to the distribution position of the heat source. The first fins 184 and the second fins 186 of the heat sink 18 of the embodiment are at 90 degrees, but the invention is not limited thereto, and the angles and the extending shapes of the first fins 184 and the second fins 186 depend on the position distribution of the heat source.

With further reference to FIG. 14, it is clear that the diverter fin 185, as viewed toward the bottom of the fin, has a chevron shape in the middle and arcuate sides; the converging end of the chevron shape corresponds to the upstream end of the turning portion fin 185, and the diverging ends of the chevron shape correspond to the two downstream ends of the turning portion fin 185, respectively; the downstream end of the first fin 184 is aligned with the upstream end of the diverter fin 185, and the upstream end of the second fin 186 is aligned with the downstream end of the diverter fin 185. Specifically, as shown in fig. 14, the second fin 186 has two branches, and the upstream ends of the two branches of the second fin 186 are respectively aligned with the downstream ends of the turning portion fins 185, i.e., the diverging ends of the chevrons, to achieve smooth turning of the air flow from the first fin 184 to the branched second fin 186.

As can be seen from fig. 14, there is a cut-off 187 between the downstream end of the first fin 184 and the upstream end of the diverter fin 185, and there is also a cut-off 187 between the upstream end of the longer branch of the second fin 186 and the closed end 181 thereof having the inclined surface, the cut-off 187 being shown as a portion of a vacant fin. Since the air entering the first fin 184 from the second inlet 183 is not necessarily uniformly distributed in each passage of the first fin 184, the air flow entering the turning portion fin 185 can be uniformly distributed by providing the cutoff portion 187 between the downstream end of the first fin 184 and the upstream end of the turning portion fin 185 before flowing into the turning portion fin 185. Similarly, since the airflow density on the side closer to the first fin 184 and the airflow density on the side farther from the first fin 184 are different when the airflow entering the turn portion fin 185 flows into the second fin 186, the cut portion 187 is provided at the downstream end closer to the turn portion fin 185 in the longer branch of the second fin 186, and the airflow can be uniformly distributed between the downstream second fins 186 adjacent to the cut portion 187, thereby improving the heat exchange effect of the heat sink 185. However, the present invention is not limited to this, and the cutoff portion 187 may be provided only between the downstream end of the first fin 184 and the upstream end of the turning portion fin 185, or the cutoff portion 187 may be provided only between the upstream end of the second fin 186 and the closed end portion 181 having the inclined surface.

As described above, the downstream end of the first fin 184 and the upstream end of the diverter fin 185 have the cut-off 187 therebetween; and/or a cut-off 187 between the upstream end of the second fin 186 and the closed end having the inclined surface; wherein the cutoff 187 serves to evenly distribute the airflow between the downstream fins adjacent to the cutoff 187.

The flow path of the air flow through the heat sink 18 is also illustrated by arrows in fig. 14, and as can be seen by the arrows shown, the air flow enters the first fin 184 via the second inlet 183 of the heat dissipation blower passage 200, enters the diverter fin 185 via the cutoff portion 187 between the downstream end of the first fin 184 and the upstream end of the diverter fin 185, is branched by the arc-shaped fins constituting both sides of the chevron shape in the diverter fin 185, enters the upstream ends of the two branches of the second fin 186, respectively, and then the air flow flows out of the heat dissipation blower passage 200 from the through opening 182 of the downstream end of the right branch shown in the drawing of the second fin 186, flows from the upstream end of the left branch shown in the drawing of the second fin 186 via the cutoff portion 187, flows upward from the closed end 181 with the inclined surface of the left branch shown in the drawing, the inclined surface at the closed end 181 being provided to facilitate the upward flow of the air flow, reducing the resistance of the air flow during the upward flow.

FIG. 15 is a perspective view of an assembled heat sink and heat sink closure cap according to the present invention. As shown in the figure, the heat dissipating apparatus in this embodiment further includes a heat sink closing top cover 19, the heat sink closing top cover 19 is used to close the top of the heat sink 18, and defines a heat dissipating air supply passage 200 together with the heat sink 18, and the heat dissipating air supply passage 200 defines an enclosure space including only the second inlet 183 and the second outlet. The second inlet 183 of the heat dissipation blower passage 200 is the upstream end of the first fin 184, the downstream ends of the two branches of the second fin 186 are a through opening 182 along the extending direction of the second fin 186 and a closed end 181 with an inclined surface along the extending direction of the second fin 186, respectively, and the second outlet is a through opening 182 at the downstream end of the second fin 186 and an opening 191 on the closed top cover of the radiator disposed corresponding to the closed end 181 at the downstream end of the second fin 186.

With reference to fig. 2 and 3, the side portion 12 of the casing 10 (specifically, the upper side portion of the casing 10) is provided with an air outlet B, indicated by reference numeral 121, corresponding to the through opening 182 of the downstream end of the second heat dissipating fin 186, and the bottom portion 11 of the casing 10 is provided with an air outlet a, indicated by reference numeral 111, corresponding to the opening 191 of the heat sink closure cap 19.

The above description has been made with reference to a specific embodiment of the control device 1 according to the present invention shown in the drawings, but the present invention is not limited to the one shown in the drawings, and various modifications described below in non-exhaustive detail are possible.

For example, the control device 1 may not include the third plate 16, but only include the first plate 14 and the second plate 15, and the graphics chip 161 as the second heat source may be directly mounted on the same side of the first plate 14 as the air outlet 172 of the fan 17. At least a portion of the heat dissipating air flow path 200 is formed by the heat sink 18, 18 the heat sink being configured to be connected to a second heat source (e.g., the die 161), the heat dissipating air flow path 200 defining an enclosure including only a second inlet 183 and a second outlet (the second outlet including the through opening 182 at the downstream end of the second heat sink 186 and an opening 191 in a heat sink closure cap positioned to correspond to the closed end 181 at the downstream end of the second heat sink 186), and the air outlet 172 of the fan 17 being aligned with the heat sink 18.

For example, the fan 17 is not limited to the structure of lower air intake and side air outtake used in the present embodiment, and may adopt the structure of lower air intake and upper air outtake, for example, so that the heat collecting and air inducing channel 100 and the heat dissipating and air blowing channel 200 may not be limited to the layout in different parallel planes, but may also be arranged at an angle according to the internal structure of the control device 1. The air outlet 172 of the fan 17 may or may not be in air-tight communication with the second inlet 183 of the heat dissipation blower channel 200. The fan 17 is not limited to be mounted on the first plate 14 as the main plate, but may be mounted on any fan support member as long as the fan 17 is fixed in position, and at this time, the fan support member and the second plate 15 as the first heat source support member may be enclosed by a sealing medium wall to form the heat collecting and inducing passage 100, and the air inlet 171 of the first heat source and the fan 17 is enclosed in the heat collecting and inducing passage 100.

For example, in the case where the heat-dissipating air blowing duct 200 is constituted by the radiator 18 and the radiator closure top 19, the radiator 18 may include only the first fins 184, and the turn-around portion fins 185 may not be included at this time; or the heat sink 18 includes the first fin 184 and the second fin 186, but the second fin 186 includes only one branch, so the turn portion fin 185 is only in an arc shape connecting the first fin 184 and the second fin 186 of one branch, when the downstream end of the second fin 186 is a through opening 183 along the extending direction of the second fin 186 or a closed end 181 having an inclined surface along the extending direction of the second fin 186, and the second outlet is a through opening 182 of the downstream end of the second fin or an opening 191 corresponding to the closed end 181 of the downstream end of the second fin and provided on the heat sink closed top cover 19; or the heat sink 18 includes only the second fins 186.

In summary, in the embodiments described in the figures, the heat sink of the present invention includes a heat sink bottom 188 and a plurality of first heat dissipation fins 184 protruding from the heat sink bottom 188 and extending along the air outlet direction of the fan 17, and/or a plurality of second heat dissipation fins 186 extending at a predetermined angle from the air outlet direction and downstream of the first heat dissipation fins 184. Optionally, the heat sink includes a first fin 184 and a second fin 186, and a diverter fin 185 is disposed between a downstream end of the first fin 184 and an upstream end of the second fin 186.

The heat dissipating device according to the present invention may also not comprise a radiator closure cap 19, i.e. the heat dissipating blower channel 200 may be open, not an envelope channel of the embodiment shown in the figures comprising only the second inlet 183 and the through opening 182 as the second outlet and the opening 191 in the radiator closure cap.

In the case where the heat dissipating device of the present invention includes the heat sink closing top cover 19, the heat sink 18 constitutes at least a part of the heat dissipating air blowing passage. The heat sink closure cap 19 may not be a separate component but may be directly replaced by the bottom 11 of the housing 10 of the control device 1 and a sealing material may be provided directly on the top of the heat sink 18 and the inner surface of the bottom 11 of the housing 10 of the control device 1 to form the enclosed heat dissipating air supply channel 200. The position of the closed end 181 with the inclined surface of the heat sink 18 corresponds to the air outlet a, which is marked with reference numeral 111, on the bottom 11 of the housing 10 of the control device 1.

The positions and numbers of the air inlet 112, the air outlet a with the reference numeral 111, and the air outlet B with the reference numeral 121 on the casing 10 of the control device 1 are not limited to those shown in the drawings, and may be any positions that do not affect the operation of the control device 1 on the casing 10 of the control device 1, and may be any appropriate numbers.

The shape of the heat collecting wind inducing passage 100 is also not limited to that shown in the drawings, and may be an enclosing passage of any shape that includes only the first inlet (i.e., the first inlet a indicated as 102 and the first inlet B indicated as 104) and the first outlet 103, and the first outlet 103 is in airtight communication with the wind inlet 171 of the fan 17.

The embodiment of the invention also provides an unmanned aerial vehicle which is controlled by using the control device 1 in the embodiment. According to the unmanned aerial vehicle provided by the invention, as the control device 1 is adopted for control, the heat dissipation device in the control device 1 can rapidly and effectively guide away heat dissipated by a plurality of heating sources, so that the reliability of the control device is improved, and the reliability of the unmanned aerial vehicle is improved.

The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features and (but not limited to) features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.