阅读说明：本技术 一种具有散热风路的led开关电源 (LED switching power supply with heat dissipation wind path ) 是由 王世顺 张茂松 詹满冬 于 2019-09-12 设计创作，主要内容包括：本发明涉及电源设备技术领域,具体公开了一种具有散热风路的LED开关电源,包括外壳以及通过外支杆沿所述外壳内中轴线悬挂设置的电路板组件,所述外壳的一端具有引风部,所述外壳的另一端具有排风部；所述外壳内还设有与所述引风部联动的导流部。本发明实施例通过安装在第三旋转轴上的用于将引风部的气流推向所述排风部的引流扇叶,使得流经电路板组件内圈的流动气流对电路板组件的内圈进行散热；在引风部和排风部的作用下,并配合旋转的第一旋转盘和第二旋转盘,能够在外壳的内腔形成环绕于电路板组件外圈的螺旋散热气流,以对电路板组件外电子元器件进行散热。(the invention relates to the technical field of power supply equipment, and particularly discloses an LED switch power supply with a heat dissipation air path, which comprises a shell and a circuit board assembly, wherein the circuit board assembly is suspended along the central axis of the shell through an outer support rod; and a flow guide part linked with the air guide part is also arranged in the shell. According to the embodiment of the invention, the air flow of the air inducing part is pushed to the air guiding fan blade of the air exhausting part by the air inducing fan blade arranged on the third rotating shaft, so that the flowing air flow flowing through the inner ring of the circuit board assembly can radiate the inner ring of the circuit board assembly; under the effect of induced air portion and exhaust portion to the rotatory first rotary disk of cooperation and second rotary disk can form the spiral heat dissipation air current in circuit board assembly outer lane in the inner chamber of shell around, dispel the heat to circuit board assembly external electronic components.)

1. The LED switch power supply with the heat dissipation air path is characterized by comprising a shell (1) and a circuit board assembly (12) which is suspended along the central axis of the shell (1) through an outer support rod (6), wherein one end of the shell (1) is provided with an air guiding part, and the other end of the shell (1) is provided with an air exhausting part; a flow guide part linked with the air guide part is also arranged in the shell (1);

The flow guide part comprises a first rotating disc (5) which is rotatably arranged in an inner cavity at one end of the shell (1) and is positioned between the air guide part and the circuit board assembly (12), wherein one end of the first rotating disc (5) is provided with a first air guide opening (19) in a penetrating manner;

the flow guide part also comprises a second rotating disk (13) which is rotatably arranged in an inner cavity at the other end of the shell (1) and is positioned between the air exhaust part and the circuit board assembly (12), and one end of the circuit board assembly (12) is provided with a second air induction opening (20) in a penetrating manner;

A rotating shaft assembly penetrating through the circuit board assembly (12) is rotatably arranged in the shell (1) along the central axis thereof;

The shell (1) is also provided with a driving motor (14) for driving the rotating shaft assembly to rotate;

And a flow guide fan blade (11) used for pushing the airflow of the air guide part to the air exhaust part is fixedly arranged on the third rotating shaft (9) arranged in the circuit board assembly (12).

2. the LED switching power supply with the cooling air duct according to claim 1, wherein the rotation shaft assembly comprises a first rotation shaft (7) linked with the air guide portion, a second rotation shaft (18) fixedly arranged along a central axis of the first rotation disk (5), a third rotation shaft (9) rotatably arranged through an inner support rod (10) along the central axis of the circuit board assembly (12), and a fourth rotation shaft (15) fixedly arranged along the central axis of the second rotation disk (13).

3. The LED switch power supply with the cooling air path as claimed in claim 2, wherein the first rotating shaft (7) and the second rotating shaft (18) are in transmission connection through a first transmission (8); the second rotating shaft (18) is in transmission connection with the third rotating shaft (9) through a second transmission (17); the third rotating shaft (9) and the fourth rotating shaft (15) are in transmission connection through a third speed changer (16).

4. The LED switch power supply with the cooling air path as claimed in claim 2 or 3, wherein the first air inlet (19) and the second air inlet (20) are always arranged in a diagonal distribution under the linkage action of a rotating shaft assembly with a third transmission (16) and a second transmission (17).

5. The LED switch power supply with the cooling air path according to claim 3, wherein the first transmission (8) and the third transmission (16) are speed increasers; the second transmission (17) is a reduction gear.

6. the LED switch power supply with the cooling air path as claimed in claim 4, wherein the driving motor (14) is fixedly installed on the inner wall of the air exhaust end of the casing (1), and the output shaft of the driving motor (14) is in driving connection with the other end of the fourth rotating shaft (15) through a coupling.

7. The LED switch power supply with the cooling air path according to claim 4, wherein the air inlet (2) is arranged at the induced air end of the housing (1), the air inlet fan blade (3) included in the induced air part is rotatably erected in the air inlet (2), and the air inlet fan blade (3) is linked with the first rotating shaft (7) in a chain wheel transmission manner;

The air inlet end of the air inlet (2) is provided with an air inlet filter screen (4) for filtering air flow.

8. The LED switch power supply with the cooling air path according to claim 7, wherein the outer wall of the air outlet end of the casing (1) is provided with a communication hole (24), and the outer ring of the air outlet end of the casing (1) is provided with an air exhaust channel (21) communicated with the inner cavity of the casing (1) through the communication hole (24);

The air exhaust part comprises an exhaust fan blade (23) which is rotatably erected in the communicating hole (24) and is used for introducing air flow in the shell (1) into the air exhaust channel (21), and an exhaust motor (22) used for driving the exhaust fan blade (23) to rotate is mounted on the inner wall of the air exhaust channel (21); the opening of the air exhaust channel (21) is also provided with a protective filter screen (25).

Technical Field

The invention relates to the technical field of power supply equipment, in particular to an LED switch power supply with a heat dissipation air path.

Background

the heat dissipation problem of the LED switch power supply is a key point for determining the service life of a product, the heat dissipation of the traditional LED switch power supply is mainly realized by directly blowing the fan with a single structure against a key component, the mode is easy to enable the wind of the fan to blow on the component and then rebound to penetrate through the fan blade and the gap between the fan and the heat dissipation sheet, and the wind is sucked again by the air inlet end of the fan and then blown out, so that partial hot wind is not discharged in time, and the heat dissipation effect is directly influenced.

Disclosure of Invention

The present invention is directed to an LED switching power supply with a heat dissipation air path to solve the problems of the prior art.

in order to achieve the purpose, the invention provides the following technical scheme:

an LED switch power supply with a heat dissipation air path comprises a shell and a circuit board assembly which is suspended along the central axis of the shell through an outer support rod, wherein one end of the shell is provided with an air inducing part, and the other end of the shell is provided with an air exhausting part; a flow guide part linked with the air guide part is also arranged in the shell;

The flow guide part comprises a first rotating disc which is rotatably arranged in an inner cavity at one end of the shell and is positioned between the air guide part and the circuit board assembly, wherein one end of the first rotating disc is provided with a first air guide opening in a penetrating manner;

The air guide part also comprises a second rotating disc which is rotatably arranged in the inner cavity at the other end of the shell and is positioned between the air exhaust part and the circuit board assembly, and one end of the circuit board assembly is provided with a second air induction opening in a penetrating way;

A rotating shaft assembly penetrating through the circuit board assembly is rotatably arranged in the shell along the central axis of the shell;

the shell is also provided with a driving motor for driving the rotating shaft assembly to rotate;

And a drainage fan blade used for pushing the airflow of the air guiding part to the air exhaust part is fixedly arranged on the third rotating shaft arranged in the circuit board assembly.

As a further scheme of the invention: the rotating shaft assembly comprises a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, the first rotating shaft is linked with the air inducing portion, the second rotating shaft is fixedly arranged along the central axis of the first rotating disk, the third rotating shaft is arranged in a penetrating mode through an inner support rod along the central axis in the circuit board assembly in a rotating mode, and the fourth rotating shaft is fixedly arranged along the central axis of the second rotating disk.

As a further scheme of the invention: the first rotating shaft and the second rotating shaft are in transmission connection through a first speed changer; the second rotating shaft is in transmission connection with the third rotating shaft through a second transmission; and the third rotating shaft and the fourth rotating shaft are in transmission connection through a third transmission.

As a further scheme of the invention: and under the linkage action of a rotating shaft assembly provided with a third speed changer and a second speed changer, the first air induction port and the second air induction port are always arranged in a diagonal distribution manner.

as a further scheme of the invention: the first transmission and the third transmission are speed increasers; the second transmission is a speed reducer.

As a further scheme of the invention: the driving motor is fixedly installed on the inner wall of the air exhaust end of the shell, and an output shaft of the driving motor is in driving connection with the other end of the fourth rotating shaft through a coupler.

As a further scheme of the invention: the air inlet fan blade is linked with the first rotating shaft in a chain wheel transmission mode, and when the first rotating shaft rotates, the air inlet fan blade can be driven to rotate to enable external air flow to enter the shell;

The air inlet end of the air inlet is provided with an air inlet filter screen used for filtering air flow.

As a further scheme of the invention: the outer wall of the air outlet end of the shell is provided with a communicating hole, and the outer ring of the air outlet end of the shell is provided with an air exhaust channel communicated with the inner cavity of the shell through the communicating hole;

The air exhaust part comprises an air exhaust fan blade which is rotatably erected in the communicating hole and is used for introducing air flow in the shell into an air exhaust channel, an air exhaust motor used for driving the air exhaust fan blade to rotate is mounted on the inner wall of the air exhaust channel, the rotating air exhaust fan blade leads the air flow in the shell into the air exhaust channel, and the air flow in the air exhaust channel is exhausted through an opening of the air exhaust channel;

the opening of the air exhaust channel is also provided with a protective filter screen to prevent flying insects from entering the shell.

compared with the prior art, the embodiment of the invention has the advantages that the air flow of the air inducing part is pushed to the air guide fan blade of the air exhausting part by the air inducing fan blade arranged on the third rotating shaft, so that the flowing air flow flowing through the inner ring of the circuit board assembly can radiate the inner ring of the circuit board assembly; under the effect of induced air portion and exhaust portion to rotatory first rotary disk of cooperation and second rotary disk, and be in the first induced air mouth and the second induced air mouth that diagonal distribution set up all the time, can form the spiral heat dissipation air current of surrounding in circuit board assembly outer lane at the inner chamber of shell, thereby realize the abundant heat dissipation to circuit board assembly external electronic components.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

Fig. 1 is a schematic structural diagram of an LED switching power supply with a cooling air path according to an embodiment of the present invention.

Fig. 2 is a schematic connection diagram of a circuit board assembly in the LED switching power supply with a heat dissipation air path according to the embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

fig. 4 is a schematic perspective view of a rotary disk in an LED switching power supply with a heat dissipation air path according to an embodiment of the present invention.

In the figure: 1-shell, 2-air inlet, 3-air inlet fan blade, 4-air inlet filter screen, 5-first rotating disk, 6-outer support rod, 7-first rotating shaft, 8-first speed changer, 9-third rotating shaft, 10-inner support rod, 11-air guide fan blade, 12-circuit board component, 13-second rotating disk, 14-driving motor, 15-fourth rotating shaft, 16-third speed changer, 17-second speed changer, 18-second rotating shaft, 19-first air guide port, 20-second air guide port, 21-air exhaust channel, 22-air exhaust motor, 23-air exhaust fan blade, 24-communication hole and 25-protective filter screen.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.