CN214256740U

CN214256740U - Heat dissipation type PCB circuit board for electric vehicle controller

Info

Publication number: CN214256740U
Application number: CN202120495062.XU
Authority: CN
Inventors: 聂俊飞; 罗婷
Original assignee: Shaoyang University
Current assignee: Shaoyang University
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-09-21
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses a heat dissipation type PCB circuit board for electric vehicle controller, comprises a box bod, and locate the circuit board body in the box body, the upper end of box body is equipped with the lid, be equipped with the heat conduction baffle in the box body, the upper end of heat conduction baffle is equipped with the heat conduction bed course, the upper end of heat conduction bed course is equipped with the circuit board body, be equipped with the screw between circuit board body and the heat conduction baffle, the lower extreme of heat conduction baffle is equipped with the heat dissipation guide piece, the air current hole has been seted up on the heat dissipation guide piece, be equipped with gas outlet and first air inlet on the end plate around the box body respectively, be equipped with the extraction fan in the gas outlet, the second air inlet has been seted up on the curb plate of box body. The heat that produces the working process of circuit board body is carried out quick transmission through heat conduction bed course and heat conduction baffle and is given the downside heat dissipation guide plate to realize the front and back, control the air current discharge heat dissipation, wholly improved the radiating efficiency of PCB circuit board for electric vehicle controller, improved the interference immunity to the circuit board body in the box body greatly.

Description

Heat dissipation type PCB circuit board for electric vehicle controller

Technical Field

The utility model belongs to the technical field of the circuit board for the electric motor car, specifically be a heat dissipation type PCB circuit board for electric vehicle controller.

Background

The electric vehicle controller is a core control device used for controlling the starting, running, advancing and retreating, speed and stopping of a motor of an electric vehicle and other electronic devices of the electric vehicle, is an important part on the electric vehicle like the brain of the electric vehicle, and a PCB (printed circuit board) is arranged in a box body of the electric vehicle controller.

However, after the existing PCB circuit board for the electric vehicle controller is installed in the box body, heat dissipation is carried out only by the heat dissipation grooves on the surface of the box body, so that the heat dissipation efficiency of the PCB circuit board for the electric vehicle controller is greatly reduced, and the anti-interference performance of the circuit board body in the box body is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric vehicle controller is with heat dissipation type PCB circuit board to solve among the prior art the relatively poor, lower problem of interference immunity to the circuit board body in the box body of the radiating efficiency of electric vehicle controller PCB circuit board.

In order to achieve the above object, the utility model provides a following technical scheme: a heat dissipation type PCB circuit board for an electric vehicle controller comprises a box body and a circuit board body arranged in the box body, wherein a box cover is arranged at the upper end of the box body, a heat conduction clapboard is arranged in the box body, a heat conduction cushion layer is arranged at the upper end of the heat conduction clapboard, a circuit board body is arranged at the upper end of the heat conduction cushion layer, screws are arranged between the circuit board body and the heat conduction clapboard, and heat dissipation guide sheets are arranged at the lower end of the heat conduction clapboard, the structural member used by the novel heat dissipation type PCB circuit board is made of aluminum alloy materials except special specifications, is light in weight, high in strength, easy to weld and process and high in heat conductivity, airflow holes are formed in the heat dissipation guide sheets, an air outlet and a first air inlet are respectively formed in the front end plate and the rear end plate of the box body, an exhaust fan is arranged in the air outlet, the type of the exhaust fan is OT-8025-HBL, the size is small, and the exhaust fan is connected to a preset power supply row of an electric vehicle through a lead, when the electric vehicle is powered on and started, the exhaust fan can be started to exhaust air and dissipate heat, and the side plate of the box body is provided with a second air inlet.

Preferably, the internal face of box body and lid all is equipped with the jam-proof layer, and the jam-proof layer is ferrite powder viscose layer, has improved the interference immunity to the circuit board body in the box body greatly.

Preferably, the heat conduction cushion layer is a heat conduction silicone pad which integrally coats the lower end of the circuit board body, so that the heat conduction efficiency is greatly improved, and the insulation performance is achieved.

Preferably, all be equipped with the dust screen on gas outlet, first air inlet, the second air inlet, avoid the box body in the entering dust.

Preferably, the second air inlet is of a strip rectangular structure matched with the heat dissipation guide vane, so that the sucked cold air can comprehensively enter each air flow hole, and further a plurality of air flows are formed, and the heat dissipation effect is guaranteed.

Preferably, the air outlet and the air exhaust fan are both symmetrical, so that the effective air exhaust and heat dissipation area of the transversely arranged heat dissipation guide fins is ensured.

Preferably, fifteen heat dissipation guide plates are transversely arranged, the airflow holes are three groups which are vertically arranged, each group is fifteen transversely arranged, is arranged on each heat dissipation guide plate and is correspondingly communicated with the heat dissipation guide plates, the sucked cold air forms a plurality of front, back, left and right airflows, and the front, back, left and right airflows can carry out heat exchange on the high temperature on the heat dissipation guide plates and form hot airflow, so that the heat dissipation rate is improved.

Compared with the prior art, the beneficial effects of the utility model are that:

the box body is divided into an upper interlayer and a lower interlayer by the arranged heat conduction clapboard, and a heat conduction cushion structure and an exhaust fan are arranged between the heat conduction clapboard and the circuit board body in a cladding way, the heat dissipation guide vane structure with airflow holes is arranged in the lower interlayer, the four side walls of the box body are respectively provided with a first air inlet and a second air inlet, so that heat generated in the working process of the circuit board body is quickly transferred to the lower heat dissipation guide vane through the heat conduction cushion layer and the heat conduction partition plate, the working exhaust fan can realize front-back left-right airflow in the lower interlayer through the first air inlet and the second air inlet, the air flow can quickly discharge the transferred high heat through the air outlet to dissipate the heat, the heat dissipation efficiency of the PCB circuit board for the electric vehicle controller is integrally improved, in addition, through the anti-interference layer, the anti-interference performance of the circuit board body in the box body is greatly improved.

Drawings

FIG. 1 is a sectional view of the whole structure of the present invention;

fig. 2 is a side view of the overall structure of the present invention.

In the figure: the heat-conducting type air conditioner comprises a box body 1, an anti-interference layer 10, a second air inlet 11, a box cover 2, a heat-conducting partition plate 3, a heat-conducting cushion layer 31, a circuit board body 4, screws 41, a heat-radiating guide sheet 5, an airflow hole 51, an air outlet 6, a first air inlet 61, a fan 7 and a dust screen 71.

Detailed Description

Referring to fig. 1, a heat dissipation type PCB for an electric vehicle controller includes a box body 1 and a circuit board body 4 disposed in the box body 1, wherein a box cover 2 is disposed at an upper end of the box body 1, the circuit board body 4 is fixed on a heat conduction partition plate 3 by a screw 41, and the circuit board body 4 is a PCB for an electric vehicle controller.

Referring to fig. 1 and 2, a heat conducting partition plate 3 is welded in a box body 1, a heat conducting cushion layer 31 is bonded at the upper end of the heat conducting partition plate 3, a circuit board body 4 is arranged at the upper end of the heat conducting cushion layer 31, a heat dissipating guide plate 5 is welded at the lower end of the heat conducting partition plate 3, an airflow hole 51 is formed in the heat dissipating guide plate 5, an air outlet 6 and a first air inlet 61 are respectively arranged on the front end plate and the rear end plate of the box body 1, an air suction fan 7 is arranged in the air outlet 6, the air outlet 6 and the air suction fan 7 are symmetrical two, a second air inlet 11 is formed in the side plate of the box body 1, the second air inlet 11 is a long rectangular structure matched with the heat dissipating guide plate 5, fifteen heat dissipating guide plates 5 are transversely arranged, the airflow holes 51 are three groups which are transversely arranged, each group is fifteen and is arranged on each heat dissipating guide plate 5 and correspondingly communicated, and the sucked cold air forms a plurality of front, rear, left and right airflows, these front, rear, left, and right air flows exchange heat with the high temperature of the radiation guide fins 5 to form hot air flow, thereby improving the heat radiation rate.

Referring to fig. 1 and 2, the inner walls of the box body 1 and the box cover 2 are provided with anti-interference layers 10, and the anti-interference layers 10 can greatly improve the anti-interference performance of the circuit board body 4 in the box body 1.

Referring to fig. 1 and 2, dust screens 71 are adhered to the air outlet 6, the first air inlet 61 and the second air inlet 11 to prevent dust from entering the box body 1.

The working principle of the scheme is as follows: the during operation of circuit board body 4 can produce the heat, this part heat can carry out the rapid transfer through heat conduction bed course 31 and heat conduction baffle 3 and for every heat dissipation conducting strip 5 of downside, the induced draft fan 7 that is working simultaneously can carry out outside convulsions to box body 1 inside, outside cold air can be simultaneously through first air inlet 61 and second air inlet 11 by the suction to box body 1 in, these cold air can form a plurality of air currents all around through the heat dissipation conducting strip 5 of arranging and a plurality of air current holes 51, these air currents all around can carry out the heat exchange and form the hot gas flow to the high temperature on the heat dissipation conducting strip 5, finally, the hot gas flow dispels the heat through gas outlet 6 discharge, the whole radiating efficiency who has improved the PCB circuit board for the electric vehicle controller.

Claims

1. The utility model provides a heat dissipation type PCB circuit board for electric vehicle controller, includes box body (1) to and locate circuit board body (4) in box body (1), its characterized in that: the upper end of box body (1) is equipped with lid (2), be equipped with heat conduction baffle (3) in box body (1), the upper end of heat conduction baffle (3) is equipped with heat conduction bed course (31), the upper end of heat conduction bed course (31) is equipped with circuit board body (4), be equipped with screw (41) between circuit board body (4) and heat conduction baffle (3), the lower extreme of heat conduction baffle (3) is equipped with heat dissipation guide plate (5), airflow hole (51) have been seted up on heat dissipation guide plate (5), be equipped with gas outlet (6) and first air inlet (61) on the front and back end plate of box body (1) respectively, be equipped with extraction fan (7) in gas outlet (6), second air inlet (11) have been seted up on the curb plate of box body (1).

2. The heat dissipation type PCB circuit board for the electric vehicle controller as claimed in claim 1, wherein: the inner wall surfaces of the box body (1) and the box cover (2) are provided with anti-interference layers (10).

3. The heat dissipation type PCB circuit board for the electric vehicle controller as claimed in claim 1, wherein: and the air outlet (6), the first air inlet (61) and the second air inlet (11) are all provided with dust screens (71).

4. The heat dissipation type PCB circuit board for the electric vehicle controller as claimed in claim 1, wherein: the second air inlet (11) is of a strip rectangular structure matched with the heat dissipation guide sheet (5).

5. The heat dissipation type PCB circuit board for the electric vehicle controller as claimed in claim 1, wherein: the air outlet (6) and the exhaust fan (7) are both symmetrical.

6. The heat dissipation type PCB circuit board for the electric vehicle controller as claimed in claim 1, wherein: fifteen heat dissipation guide vanes (5) are transversely arranged.

7. The heat dissipation type PCB circuit board for the electric vehicle controller as claimed in claim 1, wherein: the airflow holes (51) are three groups vertically arranged, each group is fifteen transversely arranged, is arranged on each heat dissipation guide sheet (5) and is correspondingly communicated with the heat dissipation guide sheets.