Auxiliary heat dissipation device for circuit board

Abstract

The utility model discloses a circuit board auxiliary heat dissipation device, which relates to the technical field of circuit board auxiliary accessories, and comprises a circuit board, the upper end of the circuit board is provided with a heat dissipation shell, the left end and the right end of the heat dissipation shell are provided with two detachable connecting devices, and the upper end of the heat dissipation shell is fixedly connected with four ventilation devices. And a wind direction adjusting device is arranged in the heat dissipation shell, and the lower end of the circuit board is fixedly connected with a cooling device. The rotating motor is controlled to rotate, the driving teeth are driven to rotate, then the driven teeth are driven to rotate, the driven teeth drive the air deflectors in the middle to rotate through the rotating shaft, then the limiting strips are driven to move, all the air deflectors rotate in the same direction, and the cooling plate is cooled through the cooling semiconductor; the circuit board is cooled and protected by the cooling plate, the lower end of the cooling semiconductor exchanges heat, and generated hot air is blown out from the lower end of the protective shell by starting the heat dissipation motor to enable the heat dissipation fan blades on the supporting frame to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary accessories for circuit boards, in particular to an auxiliary heat dissipation device for circuit boards. Background Art

[0002] Circuit boards are known as ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, and printed (copper etching technology) circuit boards. Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances.

[0003] Chinese patent document CN212573357U discloses a circuit board auxiliary heat dissipation device, comprising a housing, a plurality of pins provided on the side walls of the housing, a plurality of support columns fixedly connected to the inner side walls of the housing, a plurality of circuit boards mounted on the support columns, and an electrical connection between the circuit boards and the pins, a fan mounted on the side walls of the housing, a connecting shaft fixedly connected to the central rotating shaft of the fan, and the connecting shaft passing through the outer housing of the fan, a windshield fixedly connected to one end of the connecting shaft, a wind-facing mechanism symmetrically provided on both side walls of the housing, and an air outlet provided on the lower side wall of the housing. This circuit board auxiliary heat dissipation device can reduce the number of fans used, thereby reducing the production cost and power consumption of the heat dissipation device, while ensuring uniform heat dissipation of the circuit boards.

[0004] The existing technology has the following problems:

[0005] 1. Existing auxiliary heat dissipation devices for circuit boards generally use fans to dissipate heat. However, when the circuit board is large, the heat dissipation effect of a single fan is poor and cannot take into account the overall surface connection of the circuit board.

[0006] 2. The existing auxiliary heat dissipation device for circuit boards uses fans to dissipate heat on only one side of the circuit board, resulting in uneven heat dissipation of the circuit board. Some devices use multiple fans to form a fan unit for heat dissipation, but this method not only increases production costs, but also makes the heat dissipation device larger. Utility Model Content

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A circuit board auxiliary heat dissipation device includes a circuit board, a heat dissipation shell is provided at the upper end of the circuit board, two detachable connection devices are provided at the left and right ends of the heat dissipation shell, four ventilation devices are fixedly connected to the upper end of the heat dissipation shell, a wind direction adjustment device is provided inside the heat dissipation shell, and a cooling device is fixedly connected to the lower end of the circuit board.

[0009] Preferably, the disassembly connection device includes a card slot, the interior of the card slot is movably connected to a card block, the interior of the card block is fixedly connected to an electric telescopic rod, and one end of the electric telescopic rod is fixedly connected to one end of the heat dissipation shell.

[0010] Preferably, the ventilation device includes a ventilation pipe, and the upper end of the ventilation pipe is fixedly connected to a ventilation plate.

[0011] Preferably, a fixing bracket is fixedly connected to the interior of the ventilation pipe, a ventilation motor is fixedly connected to the interior of the fixing bracket, and a ventilation fan blade is fixedly connected to the output end of the ventilation motor.

[0012] Preferably, the wind direction adjustment device includes two fixing bars, one end of which is fixedly connected to the inner wall of the heat dissipation shell, and a plurality of wind guide plates are movably connected between the front and rear two fixing bars, and the front and rear ends of the plurality of wind guide plates are movably connected to two limit bars.

[0013] Preferably, the front and rear ends of the middle air guide plate are fixedly connected to a rotating shaft, the front end of the rotating shaft is fixedly connected to a driven tooth, the upper side of the driven tooth is meshed with a driving tooth, the rear end of the driving tooth is fixedly connected to a rotating motor, and the rear end of the rotating motor is fixedly connected to the front end of the heat dissipation shell.

[0014] Preferably, the cooling device includes a cooling plate, a plurality of cooling semiconductors are fixedly connected to the lower end of the cooling plate, a protective shell is fixedly connected to the lower end of the cooling plate, and the cooling semiconductors are located inside the protective shell.

[0015] Preferably, a heat dissipation motor is fixedly connected to the middle portion of the lower end of the cooling plate, a support frame is fixedly connected to the lower end of the heat dissipation motor, and a heat dissipation fan blade is fixedly connected to the lower end of the support frame.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] 1. The utility model provides an auxiliary heat dissipation device for a circuit board. Through the joint action of a fixing bar, an air guide plate, a limiting bar, a rotating shaft, a driven gear, a driving gear, and a rotating motor, the circuit board can be cooled in all directions, so that there is no dead angle in the cooling direction, and the cooling effect of the fan is improved. By controlling the rotation of the rotating motor, the driving gear is driven to rotate, and then the driven gear is driven to rotate, so that the driven gear drives the middle air guide plate to rotate through the rotating shaft, and then the limiting bar is displaced, so that all the air guide plates rotate in the same direction, so that the fan cools the entire circuit board surface.

[0018] 2. The utility model provides an auxiliary heat dissipation device for a circuit board. Through the joint action of a cooling plate, a cooling semiconductor, a protective shell, a heat dissipation motor, a support frame, and heat dissipation fan blades, the circuit board can be kept in a low-temperature environment at all times. It can not only prevent high-temperature fires, but also protect the connection contacts between the electrical appliance and the circuit board, thereby increasing the service life of the circuit board. The cooling plate is cooled by the cooling semiconductor, so that the cooling plate cools and protects the circuit board. The lower end of the cooling semiconductor performs heat exchange, and the generated hot air is rotated by starting the heat dissipation motor to rotate the heat dissipation fan blades on the support frame, blowing the hot air out from the lower end of the protective shell, thereby achieving cooling of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the auxiliary heat dissipation device for a circuit board of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the disassembly and connection device of the utility model.

[0021] Figure 3 This is a schematic structural diagram of the ventilation device of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the wind direction regulating device of the present utility model.

[0023] Figure 5 This is a schematic structural diagram of the cooling device of the present invention.

[0024] In the figure: 1. Circuit board; 2. Heat dissipation shell; 3. Disassembly connection device; 4. Ventilation device; 5. Wind direction adjustment device; 6. Cooling device; 31. Card slot; 32. Card block; 33. Electric telescopic rod; 41. Ventilation duct; 42. Ventilation plate; 43. Fixed bracket; 44. Ventilation motor; 45. Ventilation fan blade; 51. Fixed bar; 52. Air guide plate; 53. Limiting bar; 54. Rotating shaft; 55. Driven gear; 56. Driving gear; 57. Rotating motor; 61. Cooling plate; 62. Cooling semiconductor; 63. Protective shell; 64. Heat dissipation motor; 65. Support frame; 66. Heat dissipation fan blade. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation methods.

[0026] like Figure 1As shown, a circuit board auxiliary heat dissipation device includes a circuit board 1, a heat dissipation shell 2 is provided at the upper end of the circuit board 1, two disassembly connection devices 3 are provided at the left and right ends of the heat dissipation shell 2, four ventilation devices 4 are fixedly connected to the upper end of the heat dissipation shell 2, a wind direction adjustment device 5 is provided inside the heat dissipation shell 2, and a cooling device 6 is fixedly connected to the lower end of the circuit board 1.

[0027] like Figure 2 As shown, the disassembly connection device 3 includes a card slot 31, a card block 32 is movably connected inside the card slot 31, an electric telescopic rod 33 is fixedly connected inside the card block 32, and one end of the electric telescopic rod 33 is fixedly connected to one end of the heat dissipation shell 2.

[0028] In this embodiment, by controlling the electric telescopic rod 33 to shorten, the clamping block 32 moves into the clamping slot 31, and the lower end of the clamping block 32 is inserted into both sides of the circuit board 1, thereby realizing the disassembly and installation of the heat dissipation shell 2.

[0029] like Figure 3 As shown, the ventilation device 4 includes a ventilation pipe 41, the upper end of the ventilation pipe 41 is fixedly connected to a ventilation plate 42, the interior of the ventilation pipe 41 is fixedly connected to a fixed bracket 43, the interior of the fixed bracket 43 is fixedly connected to a ventilation motor 44, and the output end of the ventilation motor 44 is fixedly connected to a ventilation fan blade 45.

[0030] In this embodiment, by controlling the rotation of the ventilation motor 44 on the fixed bracket 43, the ventilation fan blades 45 rotate to form a wind pressure, and then the external air enters the ventilation pipe 41 through the ventilation plate 42, and the circuit board 1 is cooled by the fan.

[0031] like Figure 4 As shown, the wind direction adjustment device 5 includes two fixing bars 51, one end of the fixing bar 51 is fixedly connected to the inner wall of the heat dissipation shell 2, and a plurality of wind guide plates 52 are movably connected between the front and rear fixing bars 51, and the front and rear ends of the plurality of wind guide plates 52 are movably connected to two limit bars 53, and the front and rear ends of the middle wind guide plate 52 are fixedly connected to a rotating shaft 54, and the front end of the rotating shaft 54 ​​is fixedly connected to a driven tooth 55, and the upper side of the driven tooth 55 is meshed with a driving tooth 56, and the rear end of the driving tooth 56 is fixedly connected to a rotating motor 57, and the rear end of the rotating motor 57 is fixedly connected to the front end of the heat dissipation shell 2.

[0032] In this embodiment, by controlling the rotation of the rotating motor 57, the driving gear 56 is driven to rotate, and then the driven gear 55 is driven to rotate, so that the driven gear 55 drives the middle air guide plate 52 to rotate through the rotating shaft 54, and then the limit bar 53 is driven to move, so that all the air guide plates 52 keep rotating in the same direction, so that the fan cools the entire circuit board 1 surface.

[0033] like Figure 5As shown, the cooling device 6 includes a cooling plate 61, a plurality of cooling semiconductors 62 are fixedly connected to the lower end of the cooling plate 61, a protective shell 63 is fixedly connected to the lower end of the cooling plate 61, the cooling semiconductors 62 are located inside the protective shell 63, a heat dissipation motor 64 is fixedly connected to the middle part of the lower end of the cooling plate 61, the lower end of the heat dissipation motor 64 is fixedly connected to a support frame 65, and the lower end of the support frame 65 is fixedly connected to a heat dissipation fan blade 66.

[0034] In this embodiment, the cooling plate 61 is cooled by the cooling semiconductor 62, so that the cooling plate 61 cools and protects the circuit board 1. The lower end of the cooling semiconductor 62 performs heat exchange, and the generated hot air is blown out from the lower end of the protective shell 63 by starting the heat dissipation motor 64 to rotate the heat dissipation fan blades 66 on the support frame 65, thereby cooling the circuit board 1.

[0035] The working principle of the present invention is as follows: by controlling the rotation of the rotary motor 57, the driving gear 56 is driven to rotate, and then the driven gear 55 is driven to rotate, so that the driven gear 55 drives the middle air guide plate 52 to rotate through the rotating shaft 54, and then the limit bar 53 is driven to displace, so that all the air guide plates 52 keep rotating in the same direction, so that the fan cools the entire circuit board 1 surface, and cools the cooling plate 61 through the cooling semiconductor 62, so that the cooling plate 61 cools the circuit board 1, and the lower end of the cooling semiconductor 62 performs heat exchange, and the generated hot air starts the heat dissipation motor 64, so that the heat dissipation fan blades 66 on the support frame 65 rotate, and the hot air is blown out from the lower end of the protective shell 63, thereby cooling the circuit board 1.

[0036] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A circuit board auxiliary heat dissipation device, comprising a circuit board (1), characterized in that: A heat dissipation shell (2) is provided at the upper end of the circuit board (1), two detachable connection devices (3) are provided at the left and right ends of the heat dissipation shell (2), four ventilation devices (4) are fixedly connected to the upper end of the heat dissipation shell (2), a wind direction adjustment device (5) is provided inside the heat dissipation shell (2), and a cooling device (6) is fixedly connected to the lower end of the circuit board (1).

2. The circuit board auxiliary heat dissipation device according to claim 1, characterized in that: The disassembly connection device (3) comprises a card slot (31), a card block (32) is movably connected inside the card slot (31), an electric telescopic rod (33) is fixedly connected inside the card block (32), and one end of the electric telescopic rod (33) is fixedly connected to one end of the heat dissipation shell (2).

3. The circuit board auxiliary heat dissipation device according to claim 1, characterized in that: The ventilation device (4) comprises a ventilation pipe (41), and the upper end of the ventilation pipe (41) is fixedly connected to a ventilation plate (42).

4. The circuit board auxiliary heat dissipation device according to claim 3, characterized in that: The interior of the ventilation pipe (41) is fixedly connected to a fixed bracket (43), the interior of the fixed bracket (43) is fixedly connected to a ventilation motor (44), and the output end of the ventilation motor (44) is fixedly connected to a ventilation fan blade (45).

5. The circuit board auxiliary heat dissipation device according to claim 1, characterized in that: The wind direction adjustment device (5) comprises two fixing bars (51), one end of each fixing bar (51) is fixedly connected to the inner wall of the heat dissipation shell (2), a plurality of wind guide plates (52) are movably connected between the front and rear fixing bars (51), and the front and rear ends of the plurality of wind guide plates (52) are movably connected to two limiting bars (53).

6. The circuit board auxiliary heat dissipation device according to claim 5, characterized in that: The front and rear ends of the middle wind deflector (52) are fixedly connected to a rotating shaft (54), the front end of the rotating shaft (54) is fixedly connected to a driven tooth (55), the upper side of the driven tooth (55) is meshedly connected to a driving tooth (56), the rear end of the driving tooth (56) is fixedly connected to a rotating motor (57), and the rear end of the rotating motor (57) is fixedly connected to the front end of the heat dissipation shell (2).

7. The circuit board auxiliary heat dissipation device according to claim 1, characterized in that: The cooling device (6) comprises a cooling plate (61), a plurality of cooling semiconductors (62) are fixedly connected to the lower end of the cooling plate (61), a protective shell (63) is fixedly connected to the lower end of the cooling plate (61), and the cooling semiconductors (62) are located inside the protective shell (63).

8. The circuit board auxiliary heat dissipation device according to claim 7, characterized in that: A heat dissipation motor (64) is fixedly connected to the middle portion of the lower end of the cooling plate (61), a support frame (65) is fixedly connected to the lower end of the heat dissipation motor (64), and a heat dissipation fan blade (66) is fixedly connected to the lower end of the support frame (65).

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