CN108718509B

CN108718509B - Electric vehicle controller with high heat dissipation performance

Info

Publication number: CN108718509B
Application number: CN201810547862.4A
Authority: CN
Inventors: ***
Original assignee: Hubei Xiongxiong Electronic Technology Co ltd
Current assignee: Gansu Niudian senxiang Vehicle Manufacturing Co.,Ltd.; Gansu senxiang permanent Motorcycle Manufacturing Co., Ltd
Priority date: 2018-05-31
Filing date: 2018-05-31
Publication date: 2020-06-26
Anticipated expiration: 2038-05-31
Also published as: CN108718509A

Abstract

The invention discloses an electric vehicle controller with high heat dissipation performance, which comprises a heat dissipation shell and a circuit board, wherein sliding groove assemblies are symmetrically arranged on the inner walls of two sides of the heat dissipation shell, sliding block assemblies in sliding fit with the sliding groove assemblies are symmetrically arranged on the edges of two sides of the circuit board, a clamping groove is arranged on one side edge of the circuit board, an elastic copper sheet is embedded in the clamping groove, two ends, far away from the circuit board, of the elastic copper sheet are abutted against the inner wall of the heat dissipation shell, an air inlet and an air outlet are respectively arranged on a bottom plate of the heat dissipation shell, and a water cooling plate is arranged at the bottom of the heat dissipation. According to the invention, through a multi-stage heat dissipation mode, the heat dissipation efficiency of the electric vehicle controller is greatly improved, the structure is stable, the heat dissipation efficiency is good, meanwhile, the buffer can be provided for the circuit board, the stability of the electric vehicle controller is further improved, the service life is prolonged, and the dustproof effect is good.

Description

Electric vehicle controller with high heat dissipation performance

Technical Field

The invention relates to the technical field of controllers, in particular to an electric vehicle controller with high heat dissipation performance.

Background

The electric motor car green, light swift, more and more consumers tend to select the electric motor car when the short distance is gone on a journey. The electric vehicle controller is one of the core components of an electric vehicle, is used for controlling the starting, stopping, acceleration and deceleration and the like of the electric vehicle, is equivalent to the brain of the electric vehicle, and the quality of the electric vehicle controller reflects the quality of the electric vehicle.

The existing wire holder of the electric vehicle controller bears the circulation of larger current, heat generated by the work of the wire holder is transmitted to the circuit board through the copper sheet welded on the circuit board, the structure is single, the heat dissipation efficiency is low, when the temperature of the circuit board is overhigh, soldering tin at the welding part of the copper sheet and the circuit board is melted, the copper sheet is separated from the circuit board, the contact between the copper sheet and the circuit board is poor, the service life of components is reduced, and the controller can be failed or lose efficacy when the temperature is serious.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the electric vehicle controller with high heat dissipation performance, and solves the problems of low heat dissipation efficiency and poor effect of the electric vehicle controller.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electric vehicle controller who possesses high heat dissipating ability, includes heat dissipation shell and circuit board, the symmetry is equipped with spout subassembly on the both sides inner wall of heat dissipation shell, the both sides edge symmetry of circuit board be equipped with spout subassembly sliding fit's sliding block set spare, be equipped with the draw-in groove on one side edge of circuit board, the inside of draw-in groove has set elastic copper sheet, elastic copper sheet is kept away from the both ends of circuit board all with the inner wall butt of heat dissipation shell, be equipped with air intake and air exit on the bottom plate of heat dissipation shell respectively, the bottom of heat dissipation shell is equipped with water-cooling board, be equipped with on the water-cooling board respectively with the air intake with cold inlet channel and the cold exhaust passageway that the air exit corresponds the cold air inlet passageway and the cold exhaust passageway that sets up, correspond cold air inlet channel all around and cold exhaust passageway respectively and be equipped with the cold air guide cold air district, the bottom of water-cooling board be equipped with respectively with The heat dissipation device comprises two heat dissipation fans, wherein a heat dissipation channel is arranged inside the inner wall of the heat dissipation shell, a plurality of through holes communicated with the heat dissipation channel are formed in two side walls of the heat dissipation shell, and one end, far away from the through holes, of the heat dissipation channel is communicated with the cold air exhaust channel.

Furthermore, the heat dissipation shell comprises a shell body and a heat radiator arranged on the shell body, and the through holes are uniformly formed among the radiating fins of the heat radiator.

Furthermore, a heat conduction layer is arranged between the elastic copper sheet and the connection surface of the clamping groove, and the heat conduction layer is made of one of a heat conduction insulating material, a heat conduction silica gel sheet, heat conduction silicone grease and the like.

Further, the spout subassembly include mounting panel and symmetry set up in the inside spout of mounting panel, two form the U-shaped groove between the spout, the slider subassembly is including being used for embedding and fixing the buffer board of circuit board, symmetric connection in the elastic connection spare of buffer board top and bottom and being located elastic connection spare keeps away from the slider of buffer board one end, the slider with spout sliding fit, elastic connection spare is the spring.

Furthermore, the electric vehicle controller further comprises a plurality of MOS tubes connected with the circuit board and a plurality of elastic sheets connected with the corresponding MOS tubes, the elastic sheets are fastened on the inner wall of the heat dissipation shell through mounting plates, and the mounting plates are fastened with the heat dissipation shell through screws.

Furthermore, the bottom of the water cooling plate corresponds to the input end of the first heat exhausting fan and the input end of the second heat exhausting fan are fixedly provided with filter screens.

Furthermore, the water cooling plate adopts a honeycomb or convolute hollow structure form and adopts low-melting-point metal or alloy thereof as a cooling flowing working medium.

Further, lead cold district including following cold inlet air channel or cold exhaust passage spiral arrangement' S liquid delivery pipe and being located liquid delivery pipe cold material filling layer is led all around, the liquid delivery pipe corresponds the water-cooling plate is whole to be S-shaped distribution.

(III) advantageous effects

The invention provides an electric vehicle controller with high heat dissipation performance, which has the following beneficial effects:

(1) the electric vehicle controller with high heat dissipation performance can rapidly transfer heat generated by the work of the circuit board to the heat dissipation shell by arranging the clamping groove on the circuit board and matching with the elastic copper sheet clamped with the clamping groove, and realize primary heat dissipation by utilizing the high heat conduction performance of the elastic copper sheet, can accelerate the air flow rate in the heat dissipation shell by arranging the air inlet and the air outlet as well as the corresponding first heat exhaust fan and the second heat exhaust fan at the bottom of the heat dissipation shell, improve the heat dissipation efficiency and realize secondary heat dissipation, takes away the heat on the heat dissipation shell by an indirect liquid cooling method by arranging the water cooling plate and the cold air inlet channel and the cold air exhaust channel which are arranged corresponding to the air inlet and the air outlet, reduces the heat in the heat dissipation shell, and simultaneously can utilize the matching arrangement of the water cooling plate and the cold conducting area by arranging the pipeline connected with the cold air exhaust pipeline, the hot air exhausted through the cold exhaust channel is cooled, the cooled cold air is exhausted outwards through the pipeline and the through hole, the heat of the radiating shell can be taken away in the water-cooling air transmission process, three-level radiating is achieved, the radiating performance of the electric vehicle controller is greatly improved through a multi-level radiating mode, the structure is stable, the normal work of a circuit board circuit is guaranteed, and the service life of the electric vehicle controller is effectively prolonged.

(2) This electric vehicle controller who possesses high heat dissipating ability sets up through the cooperation of spout subassembly and sliding block set spare, through the sliding fit of spout and slider promptly, can realize the swift installation of circuit board, and simultaneously, elastic connection spare's setting can prevent that the electric motor car from jolting, provides the buffering for the circuit board when vibrating, has further promoted electric vehicle controller's stability, has prolonged life.

(3) This electric vehicle controller who possesses high heat dissipating ability has the filter screen through the equal fixed mounting of the input that corresponds first exhaust fan in the bottom of water-cooling board and the output of second exhaust fan, can prevent that the dust from getting into the inside of heat dissipation shell, influences each electric elements's normal work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a circuit board according to the present invention;

FIG. 4 is a schematic view of a part of the structure of the water-cooling plate of the present invention.

In the figure: 1. a heat dissipation housing; 2. a circuit board; 3. a chute assembly; 301. mounting a plate; 302. a chute; 4. a slider assembly; 401. a buffer plate; 402. an elastic connecting member; 403. a slider; 5. a card slot; 6. an elastic copper sheet; 7. an air inlet; 8. an air outlet; 9. a water-cooling plate; 10. a cold air inlet channel; 11. a cold exhaust channel; 12. a cold conducting area; 1201. a liquid delivery pipe; 1202. a cold conducting material filling layer; 13. a first heat exhausting fan; 14. a second heat exhausting fan; 15. a pipeline; 16. a through hole; 17. an MOS tube; 18. a spring plate; 19. mounting a plate; 20. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

As shown in fig. 1 to 4, the present invention provides a technical solution: an electric vehicle controller with high heat dissipation performance comprises a heat dissipation shell 1 and a circuit board 2, sliding groove assemblies 3 are symmetrically arranged on the inner walls of two sides of the heat dissipation shell 1, sliding block assemblies 4 which are in sliding fit with the sliding groove assemblies 3 are symmetrically arranged on the edges of two sides of the circuit board 2, a clamping groove 5 is arranged on one side edge of the circuit board 2, an elastic copper sheet 6 is embedded in the clamping groove 5, two ends, far away from the circuit board 2, of the elastic copper sheet 6 are abutted to the inner wall of the heat dissipation shell 1, an air inlet 7 and an air outlet 8 are respectively arranged on a bottom plate of the heat dissipation shell 1, a water cooling plate 9 is arranged at the bottom of the heat dissipation shell 1, a cold air inlet channel 10 and a cold air exhaust channel 11 which are respectively arranged corresponding to the air inlet 7 and the air outlet 8 are arranged on the water cooling plate 9, and cold conducting areas 12 are respectively arranged around the cold air inlet channel 10 and the cold air exhaust channel, the bottom of water-cooling board 9 be equipped with respectively with cold inlet air duct 10 with cold exhaust air duct 11 corresponds first heat extraction fan 13 and the second heat extraction fan 14 that sets up, the inside pipeline 15 that is equipped with of inner wall of heat dissipation shell 1, be equipped with on the both sides wall of heat dissipation shell 1 with a plurality of through-holes 16 that pipeline 15 is linked together, pipeline 15 keeps away from the one end of through-hole 16 with cold exhaust air duct 11 communicates.

Specifically, the heat dissipation housing 1 includes a housing body and a heat sink disposed on the housing body, and the plurality of through holes 16 are uniformly disposed between the heat sinks of the heat sink; a heat conduction layer is arranged between the connection surfaces of the elastic copper sheet 6 and the clamping groove 5, and the heat conduction layer is made of one of a heat conduction insulating material, a heat conduction silica gel sheet, heat conduction silicone grease and the like; the sliding chute assembly 3 comprises a mounting plate 301 and sliding chutes 302 symmetrically arranged in the mounting plate 301, a U-shaped groove is formed between the two sliding chutes 302, the sliding block assembly 4 comprises a buffer plate 401 used for embedding and fixing the circuit board 2, elastic connecting pieces 402 symmetrically connected to the top and the bottom of the buffer plate 401, and a sliding block 403 positioned at one end of the elastic connecting piece 402 far away from the buffer plate 401, the sliding block 403 is in sliding fit with the sliding chutes 302, and the elastic connecting piece 402 is a spring; the electric vehicle controller further comprises a plurality of MOS (metal oxide semiconductor) tubes 17 connected with the circuit board 2 and a plurality of elastic sheets 18 connected with the corresponding MOS tubes 17, wherein the elastic sheets 18 are fastened on the inner wall of the heat dissipation shell 1 through mounting plates 19, and the mounting plates 19 are fastened with the heat dissipation shell 1 through screws; a filter screen 20 is fixedly arranged at the bottom of the water cooling plate 9 and corresponds to the input ends of the first heat exhausting fan 13 and the second heat exhausting fan 14; the water cooling plate 9 adopts a honeycomb or convolute hollow structure form and adopts low-melting-point metal or alloy thereof as a cooling flowing working medium; the cold conducting area 12 comprises a liquid conveying pipe 1201 spirally arranged along the periphery of the cold air inlet channel 10 or the cold air exhaust channel 11 and a cold conducting material filling layer 1202 positioned on the periphery of the liquid conveying pipe 1201, and the liquid conveying pipe 1201 is integrally distributed in an S shape corresponding to the water cooling plate 9.

When the heat dissipation device is used specifically, the clamping groove 5 is arranged on the circuit board 2 and matched with the elastic copper sheet 6 clamped with the clamping groove, the high heat conduction performance of the elastic copper sheet 6 is utilized, the heat generated by the work of the circuit board 2 can be rapidly transferred to the heat dissipation shell 1, the primary heat dissipation is realized, the air inlet 7 and the air outlet 8 as well as the corresponding first heat exhaust fan 13 and the second heat exhaust fan 14 are arranged at the bottom of the heat dissipation shell 1, the air flow rate in the heat dissipation shell 1 can be accelerated, the heat dissipation efficiency is improved, the secondary heat dissipation is realized, the water cooling plate 9 and the cold air inlet channel 10 and the cold air exhaust channel 11 which are arranged corresponding to the air inlet 7 and the air outlet 8 are arranged, the heat on the heat dissipation shell 1 is taken away by an indirect liquid cooling method, the heat in the heat dissipation shell 1 is reduced, meanwhile, the pipeline 15 connected with the cold air exhaust pipeline 11 is arranged, the matching arrangement of the water cooling plate 9, the hot air exhausted through the cold air exhaust channel 11 is cooled, and the cooled cold air is exhausted outwards through the pipeline 15 and the through hole 16, so that the heat of the radiating shell 1 can be taken away in the process of water-cooling air transmission, three-stage radiating is realized, the radiating performance of the electric vehicle controller is greatly improved in a multi-stage radiating mode, the structure is stable, the normal work of a circuit of the circuit board 2 is ensured, and the service life of the electric vehicle controller is effectively prolonged; through the matched arrangement of the chute assembly 3 and the slider assembly 4, namely through the sliding fit of the chute 302 and the slider 403, the circuit board 2 can be quickly installed, and meanwhile, the arrangement of the elastic connecting piece 402 can prevent the electric vehicle from providing buffer for the circuit board 2 when bumping and vibrating, so that the stability of the electric vehicle controller is further improved, and the service life is prolonged; through the bottom at water-cooling board 9 correspond first exhaust air fan 13 the input with the equal fixed mounting of output of second exhaust air fan 14 has filter screen 20, can prevent that the dust from getting into the inside of heat dissipation shell 1, influences each electric elements's normal work.

In conclusion, the invention greatly improves the heat dissipation efficiency of the electric vehicle controller through a multi-stage heat dissipation mode, has stable structure and good heat dissipation efficiency, can provide buffer for the circuit board 2, further improves the stability of the electric vehicle controller, prolongs the service life and has good dustproof effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents, it being noted that the electrical components appearing therein are each electrically connected to an external master controller and 220V mains, and the master controller may be a conventionally known device, such as a computer, which controls the electrical components.

Claims

1. The utility model provides an electric vehicle controller who possesses high heat dissipating ability, includes heat dissipation shell (1) and circuit board (2), its characterized in that, the symmetry is equipped with spout subassembly (3) on the both sides inner wall of heat dissipation shell (1), the both sides edge symmetry of circuit board (2) be equipped with spout subassembly (3) sliding block set spare (4) of sliding fit, be equipped with draw-in groove (5) on one side edge of circuit board (2), elastic copper sheet (6) are inlayed to the inside of draw-in groove (5), elastic copper sheet (6) are kept away from the both ends of circuit board (2) all with the inner wall butt of heat dissipation shell (1), be equipped with air intake (7) and air exit (8) on the bottom plate of heat dissipation shell (1) respectively, the bottom of heat dissipation shell (1) is equipped with water-cooling board (9), be equipped with on water-cooling board (9) respectively with air intake (7) with cold air inlet channel (10) and the cold row of air outlet (8) Passageway (11), correspond on water-cooling board (9) cold inlet air passageway (10) with cold exhaust air passageway (11) all be equipped with around lead cold district (12), the bottom of water-cooling board (9) be equipped with respectively with cold inlet air passageway (10) with cold exhaust air passageway (11) correspond first heat extraction fan (13) and second heat extraction fan (14) that set up, the inside pipeline (15) that is equipped with of inner wall of heat dissipation shell (1), be equipped with on the both sides wall of heat dissipation shell (1) with a plurality of through-holes (16) that pipeline (15) are linked together, pipeline (15) are kept away from the one end of through-hole (16) with cold exhaust air passageway (11) intercommunication.

2. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: the heat dissipation shell (1) comprises a shell body and a heat sink arranged on the shell body, and the through holes (16) are uniformly formed among all the radiating fins of the heat sink.

3. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: and a heat conduction layer is arranged between the elastic copper sheet (6) and the connection surface of the clamping groove (5), and the heat conduction layer is one of a heat conduction silica gel sheet and heat conduction silicone grease.

4. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: spout subassembly (3) include mounting panel (301) and symmetry set up in inside spout (302) of mounting panel (301), two form the U-shaped groove between spout (302), slider subassembly (4) are including being used for the embedding and fixed buffer board (401), the symmetric connection of circuit board (2) in elastic connection spare (402) and the position of buffer board (401) top and bottom elastic connection spare (402) are kept away from slider (403) of buffer board (401) one end, slider (403) with spout (302) sliding fit, elastic connection spare (402) are the spring.

5. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: the electric vehicle controller further comprises a plurality of MOS (metal oxide semiconductor) tubes (17) connected with the circuit board (2) and a plurality of elastic sheets (18) connected with the corresponding MOS tubes (17), the elastic sheets (18) are fastened on the inner wall of the heat dissipation shell (1) through mounting plates (19), and the mounting plates (19) are fastened with the heat dissipation shell (1) through screws.

6. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: the bottom of water-cooling board (9) just corresponds first heat extraction fan (13) with the input end fixed mounting of second heat extraction fan (14) has filter screen (20).

7. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: the water cooling plate (9) adopts a honeycomb or convoluted hollow structure form and adopts low-melting-point metal or alloy thereof as a cooling flowing working medium.

8. The electric vehicle controller with high heat dissipation performance according to claim 1, characterized in that: the cold conducting area (12) comprises liquid conveying pipes (1201) which are spirally arranged along the periphery of the cold air inlet channel (10) or the cold air exhaust channel (11) and cold conducting material filling layers (1202) which are positioned on the periphery of the liquid conveying pipes (1201), and the liquid conveying pipes (1201) are distributed in an S shape corresponding to the whole water cooling plate (9).