阅读说明：本技术 光纤激光器的风冷散热装置及光纤激光器 (Air-cooled heat abstractor and fiber laser of fiber laser ) 是由 徐海军 李瑞清 朱亚辉 杨伟 刘江 于 2021-09-15 设计创作，主要内容包括：本申请涉及激光器技术领域,尤其是涉及一种光纤激光器的风冷散热装置及光纤激光器。该风冷散热装置包括风机、第一散热器和第一散热主体；第一散热主体的内部形成进风空间、出风空间和第一风冷空间；风机设置于出风端,风机朝向出风空间抽吸冷风；进风空间的一端与进风端贯通,进风空间的另一端与出风端阻断；出风空间的一端与进风端阻断,出风空间的另一端与出风端贯通；第一散热器设置于第一风冷空间,第一散热器用于安装光纤激光器的泵浦源,第一散热器形成有多条连通进风空间和出风空间的第一风冷通道。该光纤激光器包括该风冷散热装置。该风冷散热装置和光纤激光器,冷风流量大,散热效率高,能够满足高功率光纤激光器的风冷散热需求。(The application relates to the technical field of lasers, in particular to an air cooling heat dissipation device of a fiber laser and the fiber laser. The air-cooled heat dissipation device comprises a fan, a first heat radiator and a first heat dissipation main body; an air inlet space, an air outlet space and a first air cooling space are formed inside the first heat dissipation main body; the fan is arranged at the air outlet end and sucks cold air towards the air outlet space; one end of the air inlet space is communicated with the air inlet end, and the other end of the air inlet space is blocked from the air outlet end; one end of the air outlet space is blocked from the air inlet end, and the other end of the air outlet space is communicated with the air outlet end; the first radiator is arranged in the first air cooling space and used for installing a pumping source of the optical fiber laser, and a plurality of first air cooling channels communicated with the air inlet space and the air outlet space are formed in the first radiator. The optical fiber laser comprises the air-cooled heat dissipation device. This forced air cooling heat abstractor and fiber laser, cold wind flow is big, and the radiating efficiency is high, can satisfy the forced air cooling heat dissipation demand of high power fiber laser.)

1. The air-cooled heat dissipation device of the optical fiber laser is characterized by comprising a fan (14), a first radiator (100) and a first heat dissipation main body (10);

the two ends of the first heat dissipation main body (10) in the height direction are respectively an air inlet end and an air outlet end, and an air inlet space (102), an air outlet space (103) and a first air cooling space (101) are formed inside the first heat dissipation main body (10);

the fan (14) is arranged at the air outlet end, and the fan (14) sucks cold air towards the air outlet space (103);

one end of the air inlet space (102) in the height direction is communicated with the air inlet end, and the other end of the air inlet space (102) in the height direction is blocked with the air outlet end;

one end of the air outlet space (103) in the height direction is blocked from the air inlet end, and the other end of the air outlet space (103) in the height direction is communicated with the air outlet end;

the first radiator (100) is arranged in the first air cooling space (101), the first radiator (100) is used for installing a pumping source (30) of the optical fiber laser, a plurality of first air cooling channels are formed in the first radiator (100), and the first air cooling channels are communicated with the air inlet space (102) and the air outlet space (103).

2. The air-cooled heat dissipation device of the fiber laser as claimed in claim 1, wherein the number of the air inlet spaces (102) and the number of the air outlet spaces (103) are plural, one air inlet space (102) and one air outlet space (103) constitute one air duct assembly, and the air inlet space (102) and the air outlet space (103) in each air duct assembly are communicated via at least one air-cooled space.

3. The air-cooled heat dissipation device of the fiber laser according to claim 2, wherein the first heat dissipation body (10) comprises a partition plate (104), a baffle plate (105), a first wind deflector (106) and a second wind deflector (107);

the number of the partition plates (104) is multiple, and the multiple partition plates (104) are sequentially arranged at intervals along the length direction of the air-cooled heat dissipation device, so that a cavity is formed between every two adjacent partition plates (104);

the baffle (105) is arranged in the cavity, so that the cavity is divided into the air inlet space (102) and the air outlet space (103);

the first air guide plate (106) covers the end part, facing the air outlet end, of the air inlet space (102), and the second air guide plate (107) covers the end part, facing the air inlet end, of the air outlet space (103).

4. The air-cooled heat sink of the fiber laser according to claim 3, wherein the first heat dissipating body (10) further comprises a mounting plate (109) and a cover plate (108);

the two ends of the baffle (105) in the width direction are both connected with the mounting plates (109), the two ends of the mounting plates (109) in the length direction respectively extend into the air inlet space (102) and the air outlet space (103), and the first radiator (100) is arranged on the mounting plates (109);

the cover plate (108) is arranged at the outer side part of the mounting plate (109) along the width direction of the baffle plate (105) at intervals, and the first air cooling space (101) is formed between the cover plate (108) and the mounting plate (109);

a first interval is formed between one end of the mounting plate (109) in the length direction and the partition plate (104) close to the air inlet space (102), so that the first air cooling space (101) is communicated with the air inlet space (102) through the first interval;

the other end of the length direction of the mounting plate (109) and the partition plate (104) close to the air outlet space (103) form a second interval, so that the first air cooling space (101) is communicated with the air outlet space (103) through the second interval.

5. The air-cooled heat dissipation device of the optical fiber laser as claimed in claim 1, wherein a plurality of first radiators (100) are arranged in the first air-cooled space (101), and the plurality of first radiators (100) are sequentially arranged along the height direction of the first air-cooled space (101);

the first air cooling channel extends along the length direction of the first heat dissipation body (10).

6. The air-cooled heat sink of the fiber laser according to claim 1, wherein the fan (14) is an eddy current fan or a centrifugal fan;

the wind pressure of the fan (14) is not less than 300 Pa;

and/or the air-cooled heat dissipation device further comprises a second heat dissipation main body (11), wherein the second heat dissipation main body (11) forms a second air-cooled space (111), and the second air-cooled space (111) penetrates through the air inlet end and the air outlet end;

the second air-cooling space (111) is provided with a second radiator (110), the second radiator (110) is formed with a plurality of second air-cooling channels, and the second air-cooling channels extend in the height direction of the second heat dissipation main body (11).

7. The air-cooled heat dissipation device of the optical fiber laser as recited in claim 6, wherein the first heat sink (100) and the second heat sink (110) are both dense-teeth heat sinks, and each dense-teeth heat sink comprises a plurality of heat dissipation teeth arranged side by side at intervals;

the tooth gap of the adjacent heat dissipation teeth is not more than 2 mm;

the thickness of the heat dissipation teeth is not more than 2 mm;

the first heat sink (100) and the second heat sink (110) are made of red copper.

8. A fibre laser comprising a pump source (30) and an air-cooled heat sink of the fibre laser of any of claims 1 to 7.

9. The fiber laser of claim 8, further comprising a housing (20), wherein the air-cooled heat sink is disposed inside the housing (20), the housing (20) is provided with an air inlet (21) and an air outlet (22), the air inlet (21) is disposed corresponding to an air inlet end of the air-cooled heat sink, and the air outlet (22) is disposed corresponding to a fan (14) of the air-cooled heat sink.

10. The fiber laser of claim 9, wherein an air outlet end of the air cooling and heat dissipating device is disposed opposite to a bottom of the housing (20) and forms an air inlet space (23), and the air inlet (21) is disposed on a side portion of the housing (20) facing the air inlet space (23).

Technical Field

The application relates to the technical field of lasers, in particular to an air cooling heat dissipation device of a fiber laser and the fiber laser.

Background

The optical fiber laser is a laser taking rare earth element doped glass optical fiber as a gain medium. The fiber laser is widely applied, and comprises laser fiber communication, laser space long-distance communication, industrial shipbuilding, automobile manufacturing, laser engraving, laser marking, laser cutting, printing and roll manufacturing, military national defense safety, medical apparatus and instrument equipment, large-scale infrastructure, a pumping source of other lasers and the like.

The fiber laser can generate a large amount of heat during working, the continuous working can be kept only by continuously cooling the laser, otherwise, the laser can be damaged.

At present, the fiber laser mostly adopts a water cooling mode to dissipate heat for the laser so as to ensure the normal operation of equipment. The water cooling method has many problems although the heat dissipation is fast. Therefore, a scheme of radiating the optical fiber laser by adopting an air cooling mode is also provided in the market.

However, in the existing air cooling scheme for the fiber laser, a fan is usually adopted to directly draw air towards the fiber laser for cooling, so that the cooling efficiency is low, the cooling is not timely, and the cooling can be performed only for small fiber lasers with low power.

Disclosure of Invention

The application aims to provide an air-cooling heat dissipation device, a shell and a fiber laser of the fiber laser, and aims to solve the technical problem that the air-cooling efficiency of the fiber laser is low in the prior art, so that the fiber laser can only be air-cooled towards a low-power fiber laser.

The application provides an air-cooled heat dissipation device of a fiber laser, which comprises a fan, a first heat radiator and a first heat dissipation main body;

the two ends of the first heat dissipation main body in the height direction are respectively an air inlet end and an air outlet end, and an air inlet space, an air outlet space and a first air cooling space are formed inside the first heat dissipation main body;

the fan is arranged at the air outlet end and sucks cold air towards the air outlet space;

one end of the air inlet space in the height direction is communicated with the air inlet end, and the other end of the air inlet space in the height direction is blocked with the air outlet end;

one end of the air outlet space in the height direction is blocked with the air inlet end, and the other end of the air outlet space in the height direction is communicated with the air outlet end;

the first radiator is arranged in the first air cooling space, a plurality of first air cooling channels are formed in the first radiator, the first radiator is used for installing a pumping source of the optical fiber laser, and the first air cooling channels are communicated with the air inlet space and the air outlet space.

In the above technical solution, further, the number of the air inlet spaces and the number of the air outlet spaces are both a plurality of, one air inlet space and one air outlet space constitute an air duct assembly, and each air inlet space and air outlet space in the air duct assembly are communicated via at least one air cooling space.

In any of the above technical solutions, further, the first heat dissipation main body includes a partition plate, a baffle plate, a first air deflector and a second air deflector;

the number of the partition plates is multiple, and the partition plates are sequentially arranged at intervals along the length direction of the air-cooled heat dissipation device so as to form a cavity between every two adjacent partition plates;

the baffle is arranged in the cavity so that the cavity is divided into the air inlet space and the air outlet space;

the first air guide plate is covered on the end part of the air inlet space facing the air outlet end, and the second air guide plate is covered on the end part of the air outlet space facing the air inlet end.

In any of the above technical solutions, further, the first heat dissipation main body further includes a mounting plate and a cover plate;

the two ends of the baffle in the width direction are both connected with the mounting plates, the two ends of the mounting plates in the length direction respectively extend into the air inlet space and the air outlet space, and the first radiator is arranged on the mounting plates;

the cover plate is arranged at the outer side part of the mounting plate at intervals along the width direction of the baffle plate, and the first air cooling space is formed between the cover plate and the mounting plate;

a first interval is formed between one end of the mounting plate in the length direction and the partition plate close to the air inlet space, so that the first air cooling space is communicated with the air inlet space through the first interval;

the other end of the length direction of the mounting plate is close to the air outlet space, and a second interval is formed between the partition plates, so that the first air cooling space is communicated with the air outlet space through the second interval.

In any of the above technical solutions, further, a plurality of first radiators are arranged in the first air-cooling space, and the plurality of first radiators are sequentially arranged along the height direction of the first air-cooling space;

the first air cooling channel extends along the length direction of the first heat dissipation main body.

In any of the above technical solutions, further, the fan is a vortex fan or a centrifugal fan;

the wind pressure of the fan is not less than 300 Pa;

and/or the air-cooled heat dissipation device further comprises a second heat dissipation main body, wherein a second air-cooled space is formed by the second heat dissipation main body and penetrates through the air inlet end and the air outlet end;

the second air-cooled space is provided with a second radiator, the second radiator is formed with a plurality of second air-cooled channels, and the second air-cooled channels extend along the height direction of the air inlet space.

In any of the above technical solutions, further, the first heat sink and the second heat sink are both dense-tooth heat sinks, and each dense-tooth heat sink includes a plurality of heat dissipation teeth arranged side by side at intervals;

the tooth gap of the adjacent heat dissipation teeth is not more than 2 mm;

the thickness of the heat dissipation teeth is not more than 2 mm;

the first radiator and the second radiator are made of red copper.

The application also provides the optical fiber laser, which comprises a pumping source and the air cooling heat dissipation device of the optical fiber laser.

In any of the above technical solutions, further, the fiber laser further includes a housing;

the air-cooled heat dissipation device is arranged in the shell, the shell is provided with an air inlet and an air outlet, the air inlet corresponds to the air inlet end of the air-cooled heat dissipation device, and the air outlet corresponds to the fan of the air-cooled heat dissipation device.

In any of the above technical solutions, further, an air outlet end of the air-cooled heat dissipation device is opposite to the bottom of the housing and forms an air inlet interval, and the air inlet faces the air inlet interval and is disposed at a side portion of the housing.

Compared with the prior art, the beneficial effect of this application is:

the application provides air-cooled heat abstractor of fiber laser includes fan, first radiator and first heat dissipation main part. The inside of first heat dissipation main part forms air inlet space, air-out space and first air-cooled space, and under the suction effect of fan, cold wind flows through air inlet space and first air-cooled space in order, and first radiator sets up in first air-cooled space to cool off the first radiator that heaies up because of the pump source heat dissipation through cold wind, cold wind becomes hot-blast, discharges from the air-out space.

Wherein, because cold wind enters into the air inlet space earlier and enters into first air-cooled space again, but not directly enters into first air-cooled space, through carrying out suitable dilatation to the air inlet space, can increase the intake and avoid the air inlet speed at the excessive speed, thereby not only can improve the air-cooled heat transfer volume in the unit interval, can also prolong the cool time of the cold wind of unit volume, improve air-cooled efficiency, can deal with the forced air cooling of powerful fiber laser for air-cooled heat abstractor and provide the basis, particularly, can satisfy the air-cooled demand of fiber laser more than a kilowatt at least.

In addition, the direction of height of first heat dissipation main part is all followed to air inlet space and air-out space, many first air-cooled passageways of first radiator all communicate air inlet space and air-out space, by the cold wind in air inlet space inflow first air-cooled space, by many first air-cooled passageway reposition of redundant personnel, thereby cold wind all cools off first radiator in every first air-cooled passageway, heat transfer area increases, and just because the intake of air inlet space increases, therefore the setting has the first radiator of the more big specification of more first air-cooled passageways, and then provide further basis for satisfying the air-cooled demand of powerful fiber laser.

That is to say, this air-cooled heat abstractor, cold wind flow is big, and the radiating efficiency is high, can satisfy the air-cooled heat dissipation demand of high power fiber laser, and compare in the water-cooling scheme, can effectively reduce the volume, be convenient for carry, reduction in production cost and maintenance cost, do not condense and improve the safety in utilization.

The application provides a fiber laser, including foretell fiber laser's air-cooled heat abstractor, therefore can realize this air-cooled heat abstractor's all beneficial effects.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a first structural schematic diagram of an air-cooling heat dissipation apparatus of a fiber laser according to an embodiment of the present application;

fig. 2 is a second structural schematic diagram of an air-cooling heat dissipation apparatus of a fiber laser according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating a usage state of an air-cooling heat dissipation device of a fiber laser according to an embodiment of the present application;

fig. 4 is a schematic diagram of a third structure of an air-cooling heat dissipation apparatus of a fiber laser according to an embodiment of the present application;

fig. 5 is a fourth structural schematic diagram of an air-cooling heat dissipation apparatus of an optical fiber laser according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating a fifth structure of an air-cooling heat dissipation apparatus of a fiber laser according to an embodiment of the present application;

fig. 7 is a schematic diagram illustrating a sixth structure of an air-cooling heat dissipation apparatus of a fiber laser according to an embodiment of the present application;

fig. 8 is a seventh structural schematic diagram of an air-cooling heat dissipation apparatus of an optical fiber laser according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a housing according to a second embodiment of the present application;

fig. 10 is a schematic diagram of a first structure of a fiber laser according to a third embodiment of the present application;

fig. 11 is a schematic diagram of a second structure of a fiber laser according to the third embodiment of the present application;

fig. 12 is a schematic diagram of a third structure of a fiber laser according to the third embodiment of the present application.

Reference numerals:

1-air cooling heat dissipation device; 10-a first heat dissipation body; 100-a first heat sink; 101-a first air-cooled space; 102-air intake space; 103-air outlet space; 104-a separator; 105-a baffle; 106-a first air deflector; 107-a second air deflector; 108-a cover plate; 109-a mounting plate; 11-a second heat dissipation body; 110-a second heat sink; 111-a second air-cooled space; 12-a first windscreen; 13-a second wind deflector; 14-a fan; 15-a protective plate; 16-a support seat; 2-a shell; 20-a housing; 21-an air inlet; 22-air outlet; 23-air inlet interval; 3-a fiber laser; 30-a pump source; 31-a caster; 32-photoelectric device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The embodiment of the application provides an air cooling heat dissipation device of a fiber laser to carry out high-efficient air cooling on the fiber laser.

In the prior art, a fiber laser is usually water-cooled, and the fiber laser generally comprises two schemes of an external water cooler and an internal water cooler.

If adopt external water-cooling machine to carry out circulative cooling, just need purchase the water-cooling machine, lead to purchasing cost to increase, and when using, power consumptive ratio is great, leads to use cost to increase, and area is big in addition, leads to removing the transportation very inconvenient.

If a built-in water cooling machine is adopted for circulating cooling, the power consumption is high, the volume and the weight of the optical fiber laser are increased, and the optical fiber laser is inconvenient to move and transport.

And no matter the external water cooler or the internal water cooler is adopted for circulating cooling, water leakage accidents are easy to happen, the photoelectric device and the electric element are damaged, and the service life of the laser is influenced.

In addition, the fiber laser provided with the water cooler is easy to dew in a high-humidity environment, a dehumidification structure needs to be additionally arranged, the volume of the fiber laser is further increased, and the use cost is increased due to the fact that a dehumidifier needs to be regularly maintained.

Referring to fig. 1 to 8 in combination with fig. 9 to 12, an air-cooled heat sink 1 of a fiber laser provided in the present embodiment includes a fan 14, a first heat sink 100, and a first heat sink body 10.

The two ends of the first heat dissipation body 10 in the height direction are respectively an air inlet end and an air outlet end, and an air inlet space 102, an air outlet space 103 and a first air cooling space 101 are formed inside the first heat dissipation body 10. Specifically, for example, the top end of the first heat dissipation body 10 in the height direction is an air inlet end, and the bottom end of the first heat dissipation body 10 in the height direction is an air outlet end; or, the bottom end of the first heat dissipating main body 10 in the height direction is an air inlet end, the top end of the first heat dissipating main body 10 in the height direction is an air outlet end, and the top air outlet structure is favorable for improving the air exhaust efficiency, so that the suspension height of the bottom end of the air cooling heat dissipating device 1 can be increased without improving the air exhaust efficiency.

In addition, the relative positional relationship among the air inlet space 102, the air outlet space 103, and the first air-cooling space 101 may be varied as long as the air inlet space 102 and the air outlet space 103 are ensured to communicate with each other through the first air-cooling space 101. On this basis, fan 14 sets up in the air-out end, and fan 14 draws cold wind towards air-out space 103 to under fan 14's suction, form the negative pressure environment in the air-out space 103, and then make the flow path of cold wind flow through air inlet end, air inlet space 102, first air-cooled space 101, air-out space 103 and air-out end for flowing through in order.

The first heat sink 100 is disposed in the first air-cooling space 101, the first air-cooling space 101 is used for installing the pump source 30 of the optical fiber laser 3, and since the pump source 30 generates heat during operation, the pump source 30 can rapidly conduct heat to the first heat sink 100, so that the temperature of the pump source 30 is reduced and the temperature of the first heat sink 100 is increased.

The temperature of the cold air entering the first air-cooling space 101 is far lower than that of the first radiator 100, the first radiator 100 is provided with a plurality of first air-cooling channels, the first air-cooling channels are communicated with the air inlet space 102 and the air outlet space 103, the cold air flows into the first air-cooling channels, therefore, the cold air cools the first radiator 100 in each first air-cooling channel, and the cold air becomes hot air and then flows into the air outlet space 103.

The air inlet space 102 and the air outlet space 103 all extend along the direction of height of the first heat dissipation main body 10, one end of the direction of height of the air outlet space 103 is blocked by the air inlet end, the other end of the direction of height of the air outlet space 103 is communicated with the air outlet end, one end of the direction of height of the air inlet space 102 is communicated with the air inlet end, the other end of the direction of height of the air inlet space 102 is blocked by the air outlet end, on one hand, all cold air entering the air inlet space 102 is sucked into the first air cooling space 101, and cannot be directly sucked away from the air outlet end by the fan 14, the utilization rate of the cold air is improved, on the other hand, hot air is directly discharged through the air outlet channel, and cannot flow backwards towards the air inlet end, mixed flow of the hot air and the cold air is prevented, and the cooling efficiency is ensured.

In the alternative of this embodiment, the number of the air inlet space 102 and the number of the air outlet space 103 are both multiple, and one air inlet space 102 and one air outlet space 103 constitute one air duct assembly.

The air inlet space 102 and the air outlet space 103 in each air duct assembly are communicated via at least one air-cooled space. In other words, the air inlet space 102 and the air outlet space 103 in each air duct assembly are communicated with each other through one, two or three or more air cooling spaces, so that the air inlet space 102 provides a cool air supply function for all the air cooling spaces corresponding thereto, and the air outlet space 103 provides a warm air discharge function for all the air cooling spaces corresponding thereto.

Specifically, the flow area of the air inlet space 102 and the flow area of the air outlet space 103 are not smaller than the total flow area of the first air-cooled channels in all the air-cooled spaces corresponding to the air inlet space and the air outlet space, so as to ensure that both the air inlet volume and the air outlet volume can meet the cooling requirement of the first heat sink 100.

In this embodiment, just because the first air-cooling channel communicates the air inlet space 102 and the air outlet space 103, and the air inlet space 102 and the air outlet space 103 both extend along the height direction of the first heat dissipation body 10, cold air flows into the first air-cooling space 101 from the side portion of the air inlet space 102, and hot air flows into the air outlet space 103 from the side portion of the air outlet space 103, that is, the air inlet direction and the air outlet direction of the first air-cooling space 101 are not along the height direction of the first heat dissipation body 10.

Therefore, the extending direction of the first air-cooling channel is not along the height direction of the first heat dissipation body 10, so that when the first air-cooling space 101 is internally provided with the plurality of first radiators 100, and the plurality of first radiators 100 are sequentially arranged along the height direction of the first air-cooling space 101, the arrangement direction of the plurality of radiators is different from the flowing direction of the cold air, and each first radiator 100 independently enters and exits air, so that the problem that the cold air flows into the first radiators 100 at the downstream of the air path after being raised in temperature due to cooling of the first radiators 100 at the upstream of the air path does not occur, and the problem that the cooling effect of the first radiators 100 at the downstream is reduced due to heat accumulation of the cooling air does not occur, and further, the cooling effect of each first radiator 100 is almost the same, that is, the cooling effect of all the pump sources 30 is more balanced.

In addition, since the first heat sink 100 is stacked along the height direction of the first heat dissipating body 10, the cooling effect is not affected, so that the stacking of the first heat sink 100 along the height direction is possible, the length direction of the first heat sink 100 is consistent with the height direction of the first heat dissipating body 10, which is beneficial to improving the space utilization rate of the first heat dissipating body 10, and thus reducing the volume of the air-cooled heat dissipating device 1.

Optionally, the first air-cooling channel extends along the length direction of the first heat dissipation body 10, that is, the extending direction of the first air-cooling channel of the first heat sink 100 is perpendicular to the height direction of the air-cooling heat dissipation device 1, so that the wind resistance is minimized, the utilization rate of the first air-cooling space 101 is improved, and the structure of the first heat dissipation body 10 is more compact.

In an alternative embodiment, the first heat dissipating body 10 includes a partition 104, a baffle 105, a first air deflector 106, and a second air deflector 107.

The number of the partition plates 104 is plural, for example, the number of the partition plates 104 is two or three or more, and the plural partition plates 104 are sequentially arranged at intervals along the length direction of the air-cooled heat sink 1, so that a cavity is formed between two adjacent partition plates 104. The number of the cavities is one or two or more.

Baffle 105 sets up in the cavity to make the cavity be separated for air inlet space 102 and air-out space 103, on the one hand, air inlet space 102 is according to and all extends along the whole direction of height of first heat dissipation main part 10 with air-out space 103, and on the other hand, air inlet space 102 and air-out space 103 are via baffle 105 by the separation, make air inlet space 102 and air-out space 103 not have the direct circulation of air current, but realize the air current circulation through first forced air cooling space 101. In addition, each air duct assembly is separated by the partition plate 104, so that the heat dissipation uniformity can be improved, and the damage of devices caused by uneven heat dissipation can be prevented.

The first air guiding plate 106 covers the end portion of the air inlet space 102 facing the air outlet end, so that the air inlet space 102 is blocked from the air outlet end, and the end portion of the air inlet space 102 facing the air inlet end is not provided with an air guiding plate, so that the air inlet space 102 is communicated with the air inlet end. Specifically, the first air guide plate 106 is hermetically connected to the baffle 105 and an end portion of the one partition plate 104 facing the air outlet end, for example, by a connection method such as welding or caulking.

The second air guiding plate 107 covers the end portion of the air outlet space 103 facing the air inlet end, so that the air outlet space 103 is blocked from the air inlet end, and the end portion of the air outlet space 103 facing the air outlet end is not provided with an air guiding plate, so that the air outlet space 103 is communicated with the air outlet end. Specifically, the second air guide plate 107 is hermetically connected to the baffle plate 105 and the end of the air inlet end of the other separator 104, for example, by welding, caulking, or other connection means.

Alternatively, the baffles 105 are disposed in parallel with the partition 104, so that all the air inlet spaces 102 and all the air outlet spaces 103 are sequentially and alternately arranged along the length direction of the first heat dissipation body 10.

Optionally, a protection plate 15 is provided on the outer side of the cover plate 108 to protect the pump source 30 mounted on the first heat dissipating body 10.

Optionally, a first wind deflector 12 is disposed between the cover plate 108 and one end of the protection plate 15 in the height direction, and a second wind deflector 13 is disposed between the cover plate 108 and the other end of the protection plate 15 in the height direction, so as to prevent a cold wind circulation channel from being formed between the cover plate 108 and the protection plate 15, that is, prevent the pumping source 30 from being directly blown by cold wind for a long time, thereby facilitating protection of the pumping source 30 and prolonging the service life of the pumping source 30.

In this embodiment, the first heat dissipating body 10 further includes a mounting plate 109 and a cover plate 108.

The both ends of the width direction of baffle 105 all are connected with mounting panel 109, and the both ends of the length direction of mounting panel 109 stretch into air inlet space 102 and air-out space 103 respectively, and first radiator 100 sets up in mounting panel 109 to the both ends of the width direction of baffle 105 all install first radiator 100 through mounting panel 109, and partly and the air inlet space 102 of first radiator 100 is corresponding, and another part and the air-out space 103 of first radiator 100 are corresponding.

The first heat sinks 100 on both sides are embedded in the cavity, so that the first heat sink body 10 has a more compact structure and a smaller volume.

Optionally, the mounting plate 109 is perpendicular to the baffle 105.

The cover plate 108 is provided at an outer side portion of the mounting plate 109 with a space therebetween in the width direction of the baffle plate 105, and the first air-cooling space 101 is formed between the cover plate 108 and the mounting plate 109. Specifically, the cover plates 108 are disposed on both sides of the width direction of the partition plate 104 at intervals, so that the first air-cooling space 101 is formed on both sides of the width direction of the first heat dissipation body 10, and then the pump sources 30 are cooled by both sides of the width direction of the first heat dissipation body 10, thereby increasing the number of the pump sources 30 that can be installed in a unit area, and under the condition that the number of the pump sources 30 is constant, the volumes of the air-cooling heat dissipation device 1, the housing 2 using the air-cooling heat dissipation device 1, and the fiber laser 3 using the air-cooling heat dissipation device 1 are all reduced.

A first interval is formed between one end of the length direction of the mounting plate 109 and the partition plate 104 close to the air inlet space 102, so that the first air cooling space 101 is communicated with the air inlet space 102 through the first interval, a second interval is formed between the other end of the length direction of the mounting plate 109 and the partition plate 104 close to the air outlet space 103, so that the first air cooling space 101 is communicated with the air outlet space 103 through the second interval, and the air inlet direction and the air outlet direction of the first air cooling space 101 are both the length direction of the mounting plate 109.

In the optional scheme of this embodiment, the air-cooled heat dissipating device 1 further includes a second heat dissipating main body 11, a second air-cooled space 111 is provided on a side wall of the second heat dissipating main body 11, and the second air-cooled space 111 penetrates through the air inlet end and the air outlet end. Specifically, the second air-cooling space 111 may be an installation through groove extending in the height direction of the second heat dissipation body 11, and the installation barrel groove penetrates through the air inlet end and the air outlet end.

The second air-cooling space 111 is provided with a second heat sink 110, and the second heat dissipation body 11 is used for mounting the optoelectronic device 32 of the fiber laser 3 to cool down the optoelectronic device 32 through the second heat sink 110.

The second heat sink 110 is formed with a plurality of second air-cooling channels, the second air-cooling channels extend along the height direction of the second heat sink body 11, under the suction action of the fan 14, cold air enters the second air-cooling space 111 from the air inlet end, the cold air is divided and then enters each second air-cooling channel, the extending direction of the second air-cooling channels is the same as the air inlet direction of the second air-cooling space 111, the cold air exchanges heat with the second heat sink 110 in the second air-cooling channels, the cold air cools the second heat sink 110 to become hot air, the hot air is discharged from the air outlet end, so as to complete the heat dissipation of the optoelectronic device 32, the second heat sink body 11 is simple in structure, and the size reduction and the production cost reduction are facilitated.

In this embodiment, the first heat sink 100 and the second heat sink 110 are both dense-tooth heat sinks, specifically, the dense-tooth heat sinks include a support plate and a plurality of heat dissipation teeth, the plurality of heat dissipation teeth are erected on the support plate side by side at intervals, and an air cooling channel is formed between every two adjacent heat dissipation teeth.

In the use state, each heat dissipation tooth of the first heat sink 100 is horizontally disposed, so that the second air-cooled channel extends along the length direction of the air-cooled heat sink 1, and the plurality of heat dissipation teeth are arranged along the height direction of the air-cooled heat sink 1.

Each heat dissipation tooth of the second heat sink 110 is vertically disposed so that the first air-cooling channel extends along the height direction of the air-cooling heat sink 1, and a plurality of heat dissipation teeth are arranged along the length direction of the air-cooling heat sink 1.

In this embodiment, the first heat sink 100 and the second heat sink 110 are made of red copper, which has excellent thermal conductivity, so as to improve the heat dissipation efficiency of the pump source 30 and the photoelectric device 32.

To further improve the heat dissipation efficiency of the pump source 30 and the optoelectronic device 32, the first heat sink 100 and the second heat sink 110 may be formed of a red copper profile.

In the alternative of this embodiment, the fan 14 is a vortex fan or a centrifugal fan, the wind pressure of the vortex fan and the centrifugal fan is large, and the suction wind volume is large, so that the heat dissipation teeth that are more dense can be adopted to dissipate heat, the arrangement density of the heat dissipation teeth of the first heat sink 100 and the second heat sink 110 is improved, the heat dissipation area of the first heat sink 100 and the second heat sink 110 is increased, and the heat dissipation efficiency of the air-cooled heat dissipation apparatus 1 is improved.

Specifically, in the case of using the axial flow fan, since the wind pressure of the axial flow fan is small, in order to ensure that the flow rate of the cold wind is sufficient, the wind resistance needs to be reduced as much as possible, and the heat dissipation teeth cannot be arranged too densely, and the air-cooled heat dissipation device 1 can improve the wind pressure to not less than 300Pa due to the use of the eddy current fan or the centrifugal fan, so as to overcome the larger wind resistance to suck the cold wind, in the use state, on the basis that the first air-cooled channel is arranged side by side along the height direction of the air-cooled heat dissipation device 1, the first heat sink 100 in which the heat dissipation teeth are horizontally arranged and the tooth gaps between the heat dissipation teeth are not more than 2mm can be used, and it is worth emphasizing that the case that the tooth gaps are not more than 2mm for the dense-tooth heat sink and the arrangement is particularly dense.

It is understood that the second heat sink 110 in which the heat dissipation teeth are vertically arranged and the gap between the heat dissipation teeth is not more than 2mm can also be used, just because the vortex fan is used.

Further, the thickness of the heat dissipation teeth of the first heat sink 100 and the second heat sink 110 is set to be not more than 2mm, and more heat dissipation teeth can be arranged in a unit volume, so that the heat dissipation area is increased, and the heat dissipation efficiency is improved.

Optionally, the vortex fan is fixed at the air outlet end of the first heat dissipation body 10 through a plurality of equal-height columns, so as to prevent the first heat dissipation body 10 or the vortex fan from being damaged by friction due to deformation. Further, in order to protect the vortex fan and reduce the shaking of the vortex fan, a fan box is arranged at the air outlet end of the first heat dissipation main body 10, and the vortex fan is arranged in the fan box.

Optionally, the vortex fan may be a variable frequency vortex fan, and the wind speed of the vortex fan is adjusted according to the working power and the heat dissipation capacity of the fiber laser 3, so as to achieve the purpose of energy saving and noise reduction.

Alternatively, the number of the vortex fans may be one, two or more, and specifically, may be determined according to the requirements of installation space and suction pressure.

Example two

The second embodiment provides a housing, the second embodiment includes the air-cooling heat dissipation device for the fiber laser in the first embodiment, the technical features of the air-cooling heat dissipation device for the fiber laser disclosed in the first embodiment are also applicable to the second embodiment, and the technical features of the air-cooling heat dissipation device disclosed in the first embodiment are not described repeatedly.

Referring to fig. 9 in combination with fig. 1 to 8 and fig. 10 to 12, the housing 2 of the present embodiment includes a casing 20 and an air-cooled heat sink 1.

The housing 20 is commonly referred to as a chassis, and serves to protect components mounted therein. In order to facilitate the observation of the inside of the casing 20, an observation window may be provided at a side portion of the casing 20.

In order to facilitate the movement of the entire fiber laser 3 and improve the portability, casters 31 may be disposed at the bottom of the housing 20, so that the entire fiber laser 3 can be transported and transferred by pushing the housing 20.

The air-cooled heat sink 1 is disposed inside the housing 20 to protect the air-cooled heat sink 1 through the housing 20, and further protect the pump source 30 and the photoelectric device 32 mounted on the air-cooled heat sink 1.

The housing 20 is provided with an air inlet 21 and an air outlet 22, the air inlet 21 is arranged corresponding to the air inlet end of the air-cooled heat dissipation device 1, and the air outlet 22 is arranged corresponding to the fan 14 of the air-cooled heat dissipation device 1, so that cold air entering the housing 20 through the air inlet 21 is timely pumped to the air inlet end of the air-cooled heat dissipation device 1 by the fan 14, hot air pumped out by the fan 14 is timely discharged from the air outlet 22 of the housing 20, the air inlet performance of the air-cooled heat dissipation device 1 is further not affected by the housing 20, and the air cooling effect of the pump source 30 and the photoelectric device 32 is ensured.

In an alternative of this embodiment, the air outlet end of the air-cooled heat sink 1 is disposed opposite to the bottom of the housing 20 and forms an air inlet space 23, and the air inlet 21 is disposed on the side of the housing 20 facing the air inlet space 23.

Under the suction action of the fan 14 of the air-cooled heat sink 1, cold air enters the air inlet space 23 through the air inlet 21 of the housing 20, and then flows upward to the air-cooled heat sink 1 through the air inlet space 23. Through setting up air inlet interval 23, avoid air-cooled heat abstractor 1's first heat dissipation main part 10 and the outer wall of second heat dissipation main part 11 to cause the shelter from to air intake 21 to reduced the windage that cold wind flowed in, be favorable to improving the intake, and then improved the air-cooled effect. In which, by disposing the air inlet 21 at the side of the housing 20, the dust on the ground can be effectively prevented from being sucked up compared with disposing it at the bottom of the housing 20.

Optionally, in order to form the air inlet space 23, the bottom portions of the two ends of the air-cooled heat sink 1 in the length direction are provided with supporting seats 16, so that the air-cooled heat sink 1 is suspended in the air relative to the bottom portion of the housing 2 under the supporting action of the supporting seats 16.

Optionally, the air inlet 21 and the air outlet 22 are provided with dust screens to reduce dust entering the inside of the fiber laser 3, thereby reducing the frequency of cleaning and maintenance.

The housing in this embodiment has the advantages of the air-cooled heat dissipation device in the first embodiment, and the advantages of the air-cooled heat dissipation device disclosed in the first embodiment are not described again.

EXAMPLE III

The third embodiment provides a fiber laser, the fiber laser includes the housing in the second embodiment, the technical features of the housing disclosed in the second embodiment are also applicable to the embodiment, and the technical features of the housing disclosed in the second embodiment are not described repeatedly.

Referring to fig. 10 to 12 in combination with fig. 1 to 9, the optical fiber laser 3 provided in the present embodiment includes a pump source 30 and a housing 2, wherein the pump source 30 is disposed on a first heat sink 100 of the housing 2, so that the pump source 30 is cooled by the first heat sink 100.

The fiber laser in this embodiment has the advantages of the housing in the second embodiment, and the advantages of the housing disclosed in the second embodiment are not described again here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.