CN206181684U - Electric vehicle controller of double MOS pipe - Google Patents

Abstract

The utility model discloses an electric vehicle controller of double MOS pipe, it includes the radiating shell, offer the square well chambers of the heart on the radiating shell, the center intracavity is provided with the circuit board, wherein, the MOS pipe of the MOS pipe that a plurality of set up side by side, cooperation circuit board both sides is all welded to the both sides of circuit board the both sides inner wall of the well chambers of the heart all extends to the inboard has mounting surface, the MOS pipe is hugged closely through the spring leaf mounting surface is fixed, on the radiating shell in the baffle is installed to the open end of the well chambers of the heart. Above -mentioned electric vehicle controller of double MOS pipe, not only compact structure is convenient for assemble, has simplified the mounting structure of MOS pipe, the cost is reduced, and electric vehicle controller's radiating efficiency has been improved.

Description

A double-row MOS tube electric vehicle controller

technical field

The utility model belongs to the technical field of electric vehicles, in particular to an electric vehicle controller with double-row MOS tubes.

Background technique

As one of the four major components of an electric vehicle, the electric vehicle controller plays a vital role in the electric vehicle. The quality of the controller determines the quality of an electric vehicle to a certain extent. The controller is the core center of the electric vehicle, and needs to be connected with various external and auxiliary equipment, such as the connection with the motor part and the connection with the display part, etc., and the radiator is an essential part of the controller. Heat dissipation, on the other hand, can also protect internal electronic devices and circuit boards.

The structure of the existing electric vehicle controller usually adopts the form of a cavity-type metal shell seal, and a single row of MOS tubes as the main heating element is tightly fixed in the inner cavity of the metal shell by fixing screws. This method obviously has the following disadvantages:

1) Because the MOS tube is fixed by fixing screws, it is inconvenient to install, high in production cost and takes up a lot of space;

2) Relying on a single side of the metal shell to conduct the heat of the MOS tube, the metal shell is not fully utilized, resulting in poor heat dissipation effect of the MOS tube as a whole.

Utility model content

The purpose of the utility model is to provide a double-row MOS tube electric vehicle controller to solve the problems of poor heat dissipation and inconvenient assembly existing in the electric vehicle controller in the prior art.

For this purpose, the utility model adopts the following technical solutions:

An electric vehicle controller with double rows of MOS tubes, which includes a heat dissipation housing, and a square central cavity is opened on the heat dissipation housing, and a circuit board is arranged in the central cavity, wherein the two sides of the circuit board A number of MOS tubes arranged side by side are welded, and the inner walls on both sides of the central cavity of the MOS tubes on both sides of the circuit board are extended to the inside to have installation planes, and the MOS tubes are fixed against the installation plane by spring pieces. A baffle is installed on the opening end of the central cavity on the heat dissipation housing.

In particular, the spring piece has an "L" shape as a whole, the top surface of the central cavity cooperates with the spring piece to extend downward to limit the protrusion, and one side of the spring piece is placed on the top surface of the installation plane On the top, the bending part is against the bottom surface of the limiting boss, and the other side is provided with several arc-shaped elastic edges at intervals, and the elastic edges are against the outer wall of the MOS tube.

In particular, the baffle includes a front baffle and a rear baffle, the middle part of the front baffle is provided with a wire routing part, and the top of the wire routing part is installed with a wire crimping cover.

In particular, there are clips extending on both sides of the wiring part, and there are hooks extending downwards from both ends of the wire crimping cover in cooperation with the clips. top of line.

In particular, the bottom of the front baffle and the rear baffle extend outwards with a mounting plate for assembling the entire controller, and mounting holes are opened on the mounting plate.

In particular, heat dissipation fins are arranged outside the heat dissipation housing.

In particular, the inner walls on both sides of the central cavity are correspondingly provided with slots below the installation plane, and the two sides of the circuit board are inserted into the slots.

In particular, both the front baffle and the rear baffle are integrally formed of plastic, and both the front baffle and the rear baffle are fixed on the heat dissipation housing by self-tapping screws.

In particular, the bottom of the installation plane extends inwardly with ribs for limiting the bottom of the MOS tube.

In particular, an aluminum substrate is arranged between the MOS tube and the installation plane.

The beneficial effect of the utility model is that, compared with the prior art, the electric vehicle controller of the double-row MOS tube has the following advantages:

1) The method of fixing the MOS tube with a spring piece makes the MOS tube close to the installation plane. It is easy to assemble, simplifies the installation structure of the MOS tube, and reduces the cost. At the same time, the installation method of the spring leaf has the advantages of simple and compact structure and small space occupation;

2) MOS tubes are installed on the inner side of both side walls of the heat dissipation housing, so that the full utilization of the heat dissipation housing is achieved, and both side walls of the heat dissipation housing are directly involved in heat dissipation; the heat dissipation efficiency of the electric vehicle controller is improved.

Description of drawings

Fig. 1 is the exploded view of the electric vehicle controller of the double-row MOS tube that the utility model specific embodiment 1 provides;

Fig. 2 is the cross-sectional view of the electric vehicle controller of the double-row MOS tube provided by Embodiment 1 of the utility model;

Fig. 3 is the three-dimensional structure schematic diagram of the electric vehicle controller of the double-row MOS tube that the utility model specific embodiment 1 provides;

Fig. 4 is a cross-sectional view of the electric vehicle controller with double-row MOS tubes provided in Embodiment 2 of the utility model.

detailed description

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Embodiment one:

Please refer to Fig. 1 to Fig. 3, in this embodiment, an electric vehicle controller with double rows of MOS tubes includes a heat dissipation housing 1, and heat dissipation fins 2 are arranged outside the heat dissipation housing 1, and the heat dissipation housing 1 The body 1 is provided with a square central cavity 3, and the inner walls of both sides of the central cavity 3 are provided with slots 4 correspondingly. Inside chamber 3.

Both sides of the circuit board 5 are welded with several MOS tubes 6 arranged side by side, and the inner walls of both sides of the central cavity 3 in cooperation with the MOS tubes 6 on both sides of the circuit board 5 extend inwardly with installation planes 7. The installation plane 7 is located above the card slot 4, and the bottom of the installation plane 7 extends inwardly with a rib 8 for limiting the bottom of the MOS tube 6, and the MOS tube 6 is in close contact with the The installation plane 7 is fixed, and the spring piece 9 is in an "L" shape as a whole. The top surface of the central cavity 3 cooperates with the spring piece 9 to extend downward to limit the boss 10, and one side of the spring piece 9 is placed On the top surface of the installation plane 7 , its bending part is against the bottom surface of the limiting boss 10 , and the other side is provided with several arc-shaped elastic edges 11 at intervals, and the elastic edges 11 abut against On the outer wall of the MOS tube 6 .

A front baffle 12 and a rear baffle 13 are respectively fixed by self-tapping screws at the openings at both ends of the central cavity 3 on the heat dissipation housing 1, and the front baffle 12 and the rear baffle 13 are all made of plastic. forming. The middle part of the front baffle 12 is provided with a wire routing part 14 , and the top of the wire routing part 14 is installed with a wire crimping cover 15 . There are clips 16 extending on both sides of the wiring part 14, and there are hooks 17 extending downwards from both ends of the crimping cover 15 in cooperation with the clips 16, and the crimping cover 15 is fixed by the hooks 17. on the top of the wiring portion 14 .

The bottom of the front baffle 12 and the rear baffle 13 extend outwardly a mounting plate 18 for assembling the entire controller, and the mounting plate 18 is provided with a mounting hole 19 .

Embodiment two:

Please refer to Fig. 4, Fig. 4 is a cross-sectional view of the electric vehicle controller of the double-row MOS tube provided in the second embodiment of the utility model, the main difference between this embodiment and the first embodiment is: the MOS tube 6 and the An aluminum base plate 20 is arranged between the installation planes 7, and the heat conduction method of the aluminum base plate 20 simplifies the installation procedure of the MOS tube 6, facilitates the fixing of the MOS tube, and the thickened shell wall thickness and the aluminum base plate reduce thermal resistance and play a role The excellent effect of heat dissipation improves the reliability of the electric vehicle controller.

The above embodiments have only set forth the basic principles and characteristics of the present utility model, and the present utility model is not limited by the above examples. Under the premise of not departing from the spirit and scope of the present utility model, the present utility model also has various changes and changes. These changes All changes and modifications fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (10)

1. A kind of electric vehicle controller of double-row MOS tube, it comprises heat-dissipating shell, is provided with square central cavity on described heat-dissipating shell, is provided with circuit board in described central cavity, it is characterized in that, described circuit Both sides of the board are welded with a number of MOS tubes arranged side by side, and the inner walls on both sides of the central cavity of the MOS tubes on both sides of the circuit board are extended to the inside with installation planes, and the MOS tubes are closely attached to the The installation plane is fixed, and a baffle plate is installed on the opening end of the central cavity on the heat dissipation housing. 2. The electric vehicle controller with double-row MOS tubes according to claim 1, characterized in that, the spring piece is in an "L" shape as a whole, and the top surface of the central cavity cooperates with the spring piece to extend downward Limiting the boss, one side of the spring piece is placed on the top surface of the installation plane, and its bending part is against the bottom surface of the limiting boss, and the other side is provided with several arc-shaped elastic springs at intervals. edge, the elastic edge abuts against the outer wall of the MOS tube. 3. The electric vehicle controller with double-row MOS tubes according to claim 1 or 2, wherein the baffle includes a front baffle and a rear baffle, and the middle part of the front baffle is provided with a wiring portion , a crimping cover is installed on the top of the wiring part. 4. The electric vehicle controller with double-row MOS tubes according to claim 3, characterized in that, there are clamps extending on both sides of the wiring part, and the clamps are matched with the two ends of the crimping cover A hook extends downwards, and the wire crimping cover is fixed on the top of the wire routing part through the hook. 5. The electric vehicle controller of double-row MOS tubes according to claim 3, characterized in that, the bottom of the front baffle and the rear baffle extend outwards with a mounting plate for assembling the entire controller, and the installation Mounting holes are provided on the board. 6 . The electric vehicle controller with double-row MOS tubes according to claim 1 , characterized in that radiating fins are arranged outside the heat-dissipating housing. 7. The electric vehicle controller with double-row MOS tubes according to claim 1, characterized in that, the inner walls on both sides of the central cavity are correspondingly provided with card slots below the installation plane, and the two sides of the circuit board The side is inserted into the card slot for setting. 8. The electric vehicle controller of double-row MOS tubes according to claim 3, characterized in that, the front fender and the rear fender are integrally formed by plastics, and the front fender and the rear fender are all passed through Self-tapping screws are fixed on the heat dissipation housing. 9. The electric vehicle controller with double rows of MOS tubes according to claim 1, characterized in that, the bottom of the installation plane extends inwardly with ribs for limiting the bottom of the MOS tubes. 10. The electric vehicle controller with double rows of MOS tubes according to claim 1, wherein an aluminum substrate is arranged between the MOS tubes and the installation plane.