CN213718566U

CN213718566U - Controller of electric vehicle

Info

Publication number: CN213718566U
Application number: CN202023336990.6U
Authority: CN
Inventors: 郭胤杰; 蒲道勇; 钟治平; 王建伟
Original assignee: Wenling Jiuzhou Electromechanical Co ltd
Current assignee: Zhejiang Jiuzhou New Energy Technology Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-07-16
Anticipated expiration: 2030-12-31

Abstract

The utility model provides an electric vehicle controller belongs to controller technical field. It has solved the poor problem of current controller radiating effect. This electric vehicle controller is including heat dissipation shell and the circuit board of setting in heat dissipation shell, a plurality of power tube has been linked firmly on the circuit board, the draw-in groove that has a pair of concave setting on the inside wall of heat dissipation shell, the portion of supporting that has the protrusion to set up in the draw-in groove, the controller still includes the elastic frame, the both ends of elastic frame are bent and are set up and are formed elastic joint portion, still be equipped with the elastic pressing piece that a plurality of protrusion set up on the elastic frame, joint portion is embedded into in the draw-in groove and the tip of joint portion supports and leans on to make elastic frame and heat dissipation shell fix a position mutually in supporting to the portion, the elastic pressing piece supports and leans on to. This electric vehicle controller has the advantage that the radiating effect is good.

Description

Controller of electric vehicle

Technical Field

The utility model belongs to the technical field of the controller, a electric vehicle controller is related to.

Background

The electric vehicle controller is a central control part of an electric vehicle, and because the electric vehicle controller works for a long time, components of the electric vehicle controller generate heat, and if the electric vehicle controller does not have good heat dissipation, the electric vehicle controller is easy to damage due to overhigh temperature. In the electric vehicle controller, the power tubes have the characteristics of small volume, large heat productivity and high heat density, and most of the controllers are provided with heat radiating devices to radiate high heat generated by the work of the power tubes, so that the normal operation of the controller until the whole vehicle is influenced by the damage of the power tubes due to overheating can be avoided.

For example, chinese patent literature discloses a spring plate pressing controller heat dissipation device [ application number: 201820191851.2, respectively; authorization notice number: CN207820442U ], which comprises a heat dissipation casing, a circuit board, a power tube and a spring plate, wherein the lower end of the spring plate is a pressing end, and the pressing end side surface of the spring plate is pressed and contacted with the side surface of the power tube body; the elastic sheet pressing end is provided with an upper positioning structure, the upper positioning structure is pressed and contacted with the upper end surface of the power tube body, and the upper positioning structure limits the upper end of the power tube body; and a lower positioning structure is arranged on the side wall of the inner cavity of the radiating shell, the lower positioning structure is in compression contact with the lower end face of the power tube body, and the lower positioning structure is limited for limiting the lower end of the power tube body.

This kind of shell fragment of structure compresses tightly controller heat abstractor, the shell fragment is arc flaky, the end card that clamps of shell fragment is gone into the shell fragment draw-in groove, the end side that compresses tightly of shell fragment compresses tightly contact power tube body side, but the end that compresses tightly of shell fragment is little with the area of contact of power tube body, after this controller is installed in the electric motor car, the electric motor car is when jolting and going, the shell fragment has the problem that drops, poor stability, lead to that the power tube can not be fine paste and lean on the shell that dispels the heat, reduce the radiating effect.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide an electric vehicle controller, the technical problem of solution is how to improve the stability of elastic frame installation, improves the radiating effect of controller.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an electric vehicle controller, includes heat dissipation shell and the circuit board of setting in heat dissipation shell, a plurality of power tube has been linked firmly on the circuit board, its characterized in that, a pair of concave draw-in groove that sets up has on the inside wall of heat dissipation shell, the support portion that supports that has the protrusion setting in the draw-in groove, the controller still includes the elastic frame, the both ends of elastic frame are bent and are set up and form elastic joint portion, still be equipped with the elasticity preforming of a plurality of protrusion setting on the elastic frame, joint portion is embedded into in the draw-in groove and the tip of joint portion supports and make the elastic frame and heat dissipation shell fix a position mutually by supporting in supporting, the elasticity preforming supports and makes the power tube near on the heat dissipation shell on corresponding power.

Joint portion is embedded into in the draw-in groove and the tip of joint portion supports to lean on to make elastic frame and heat dissipation shell fix a position mutually by leaning on the portion, make elastic frame and heat dissipation shell tight fit link firmly, the horizontal direction elastic frame and the heat dissipation shell of circuit board along the line can not take place relative movement, the stability of elastic frame installation is good, can guarantee all the time that the elasticity preforming supports to lean on making the power tube near on the power tube that corresponds, what make the heat dissipation shell last dispels the heat to the power tube, the radiating effect of improvement controller, the life of improvement controller.

In the above electric vehicle controller, one end of the elastic pressing piece is fixedly connected to the elastic frame, and the other end of the elastic pressing piece is bent to form a pressing portion, and the pressing portion abuts against the corresponding power tube to enable the power tube to abut against the heat dissipation housing. The contact part of the elastic pressing sheet and the power tube is smooth, the power tube cannot be crushed by the elastic pressing sheet, and the power tube cannot be damaged.

In the electric vehicle controller, the upper side and the lower side of the elastic frame are bent to form flanges, and the flanges and the elastic pressing sheets are respectively located on two sides of the elastic frame. The arrangement of the flanging improves the strength of the elastic frame, ensures that the power tube is always close to the heat dissipation shell, improves the heat dissipation effect of the controller, and prolongs the service life of the controller.

In an electric vehicle controller, supporting legs protruding from a plurality of parts are further arranged at two ends of the elastic frame, the supporting legs are located at the bottom of the clamping portion, and the supporting legs can abut against a circuit board. The supporting legs play a supporting role, and when the supporting legs are abutted to the circuit board, the elastic frame is installed in place.

In the electric vehicle controller, the inner side wall of the heat dissipation housing is provided with heat dissipation parts protruding inwards, the clamping grooves are located at two ends of the heat dissipation parts, and the power tube abuts against the heat dissipation parts. The heat dissipation part is thicker than the wall thickness of the rest part of the heat dissipation shell, so that a better heat dissipation effect is achieved; and meanwhile, space is provided for the arrangement of the clamping groove.

In foretell electric vehicle controller, the heat dissipation shell is by cavity aluminium alloy integrated into one piece stretch forming, be equipped with a plurality of heat dissipation muscle on the lateral wall of heat dissipation shell, the upside of heat dissipation shell has linked firmly the upper end cover, the downside of heat dissipation shell has linked firmly the lower extreme cover. The upper end cover, the lower end cover and the radiating shell are provided with waterproof rubber strips, so that the sealing performance is improved; the arrangement of the heat dissipation ribs improves the heat dissipation effect.

In foretell electric vehicle controller, the mounting groove that a plurality of runs through has on the upper end cover, the protrusion sets up and is annular sealing strip inwards on the cell wall of mounting groove, a plurality of connection terminal has been linked firmly on the circuit board, the connection terminal passes corresponding sealing strip, form the seal groove that is used for filling waterproof glue between the cell wall of lateral wall, sealing strip and the mounting groove of connection terminal. The setting of seal groove can increase the injection volume of waterproof glue to make the gap between wire holder and the upper end cover can not the fracture, improve the leakproofness.

Compared with the prior art, the utility model provides a pair of electric vehicle controller, the horizontal direction elastic frame and the heat dissipation shell of circuit board along the line can not take place relative movement, has upper end cover and lower end cover to block the elastic frame along the vertical direction of circuit board, makes the elastic frame can not drop, can guarantee all the time that the power tube is near on the heat dissipation shell, improves the radiating effect of controller, improves the life of controller.

Drawings

Fig. 1 is an overall structural schematic diagram of the electric vehicle controller.

Fig. 2 is a schematic view of an installation structure of the flexible frame and the power tube of the electric vehicle controller.

Fig. 3 is a top view of the mounting structure of the flexible frame and the power tube of the electric vehicle controller.

Fig. 4 is a schematic view of the overall structure of the flexible frame of the electric vehicle controller.

Fig. 5 is an overall structural schematic diagram of the upper end cover of the electric vehicle controller.

In the figure, 1, a heat dissipation shell; 11. a heat dissipating section; 12. heat dissipation ribs; 2. a circuit board; 3. a power tube; 4. a card slot; 5. an abutting portion; 6. an elastic frame; 61. a clamping part; 62. elastic tabletting; 621. a pressing part; 63. flanging; 64. supporting legs; 7. an upper end cover; 71. mounting grooves; 72. a sealing strip; 73. a sealing groove; 8. a lower end cover; 9. a wire holder.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, and 3, the electric vehicle controller includes a heat dissipation housing 1, a circuit board 2, a power tube 3, an elastic frame 6, an upper end cap 7, a lower end cap 8, and a wire holder 9.

Heat dissipation shell 1 is by cavity aluminium alloy integrated stretch forming, in this embodiment, be equipped with thirty heat dissipation muscle 12 on heat dissipation shell 1's the lateral wall, in actual production, the quantity of heat dissipation muscle 12 can be twenty or forty, heat dissipation shell 1's upside has linked firmly upper end cover 7, heat dissipation shell 1's downside has linked firmly lower end cover 8, circuit board 2 sets up in heat dissipation shell 1, in this embodiment, six power tubes 3 have been linked firmly on circuit board 2, in actual production, power tube 3's quantity can be four or ten.

Have the inside protruding heat dissipation portion 11 that sets up of inside on the inside wall of heat dissipation shell 1, have a pair of recessed draw-in groove 4 that sets up on the inside wall of heat dissipation shell 1, draw-in groove 4 is located the both ends of heat dissipation portion 11, has the protruding portion 5 that supports that sets up in the draw-in groove 4.

As shown in fig. 4, the two ends of the elastic frame 6 are bent to form elastic clamping portions 61, six elastic pressing pieces 62 protruding from the elastic frame 6 are further disposed on the elastic frame 6, the elastic pressing pieces 62 are disposed in one-to-one correspondence with the power tubes 3, one end of each elastic pressing piece 62 is fixedly connected with the corresponding elastic frame 6, the other end of each elastic pressing piece 62 is bent to form a pressing portion 621, the clamping portions 61 are embedded into the clamping grooves 4, the end portions of the clamping portions 61 abut against the abutting portions 5 to position the elastic frame 6 and the heat dissipation housing 1, the elastic pressing pieces 62 abut against the corresponding power tubes 3 to enable the power tubes 3 to abut against the heat dissipation housing 1, and particularly, the pressing portions 621 abut against the corresponding power tubes 3 to enable the power tubes 3 to abut against the heat dissipation portion 11. The upper side and the lower side of the elastic frame 6 are bent to form flanges 63, and the flanges 63 and the elastic pressing sheets 62 are respectively positioned at the two sides of the elastic frame 6. In this embodiment, the two ends of the elastic frame 6 are further provided with four supporting legs 64 protruding from each other, in actual production, the number of the supporting legs 64 may be two or six, the supporting legs 64 are located at the bottom of the clamping portion 61, and the supporting legs 64 abut against the circuit board 2.

As shown in fig. 5, in this embodiment, the upper end cover 7 has two through mounting grooves 71, the groove wall of the mounting groove 71 has an inward protruding sealing strip 72, the circuit board 2 is fixedly connected with two wire holders 9, the wire holder 9 passes through the corresponding sealing strip 72, a sealing groove 73 for filling waterproof adhesive is formed between the outer side wall of the wire holder 9, the sealing strip 72 and the groove wall of the mounting groove 71, and in actual production, the number of the mounting grooves 71 and the number of the sealing strips 72 may be one or three.

During the equipment, weld power tube 3 on circuit board 2 earlier, then place circuit board 2 in heat dissipation shell 1, remove elastic frame 6 again, with joint portion 61 embedded in draw-in groove 4 and make supporting legs 64 support and lean on circuit board 2, elasticity preforming 62 compresses tightly power tube 3 on heat dissipation portion 11 this moment.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the heat dissipation housing 1, the heat dissipation portion 11, the heat dissipation rib 12, the circuit board 2, the power tube 3, the card slot 4, the abutting portion 5, the elastic frame 6, the card connecting portion 61, the elastic pressing piece 62, the pressing portion 621, the flange 63, the supporting leg 64, the upper end cover 7, the mounting groove 71, the sealing strip 72, the sealing groove 73, the lower end cover 8, the wire holder 9, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. An electric vehicle controller comprises a heat dissipation shell (1) and a circuit board (2) arranged in the heat dissipation shell (1), wherein a plurality of power tubes (3) are fixedly connected on the circuit board (2), it is characterized in that the inner side wall of the heat dissipation shell (1) is provided with a pair of concave clamping grooves (4), the clamping groove (4) is internally provided with a protruding abutting part (5), the controller also comprises an elastic frame (6), two ends of the elastic frame (6) are bent to form elastic clamping parts (61), a plurality of elastic pressing sheets (62) which are arranged convexly are also arranged on the elastic frame (6), the clamping part (61) is embedded into the clamping groove (4) and the end part of the clamping part (61) is propped against the abutting part (5) to enable the elastic frame (6) and the heat dissipation shell (1) to be positioned mutually, the elastic pressing sheet (62) is abutted against the corresponding power tube (3) so that the power tube (3) is abutted against the heat dissipation shell (1).

2. An electric vehicle controller according to claim 1, characterized in that one end of the elastic pressing sheet (62) is fixedly connected with the elastic frame (6), the other end of the elastic pressing sheet (62) is bent to form a pressing part (621), and the pressing part (621) abuts against the corresponding power tube (3) to enable the power tube (3) to abut against the heat dissipation shell (1).

3. The controller according to claim 1, wherein the elastic frame (6) is bent at upper and lower sides to form flanges (63), and the flanges (63) and the elastic pressing sheet (62) are respectively located at two sides of the elastic frame (6).

4. The electric vehicle controller according to claim 1, wherein a plurality of supporting legs (64) protruding are further arranged at two ends of the elastic frame (6), the supporting legs (64) are located at the bottom of the clamping portion (61), and the supporting legs (64) can abut against the circuit board (2).

5. An electric vehicle controller according to claim 1, 2, 3 or 4, characterized in that the heat dissipation housing (1) has heat dissipation parts (11) protruding inwards on the inner side wall, the clamping grooves (4) are located at two ends of the heat dissipation parts (11), and the power tubes (3) abut against the heat dissipation parts (11).

6. The electric vehicle controller according to claim 1, 2, 3 or 4, wherein the heat dissipation housing (1) is integrally formed by stretching a cavity aluminum profile, the outer side wall of the heat dissipation housing (1) is provided with a plurality of heat dissipation ribs (12), the upper side of the heat dissipation housing (1) is fixedly connected with an upper end cover (7), and the lower side of the heat dissipation housing (1) is fixedly connected with a lower end cover (8).

7. The electric vehicle controller according to claim 6, wherein the upper end cover (7) is provided with a plurality of through mounting grooves (71), the groove walls of the mounting grooves (71) are provided with annular sealing strips (72) which protrude inwards, the circuit board (2) is fixedly connected with a plurality of wire holders (9), the wire holders (9) penetrate through the corresponding sealing strips (72), and sealing grooves (73) for filling waterproof glue are formed among the outer side walls of the wire holders (9), the sealing strips (72) and the groove walls of the mounting grooves (71).