WO2023109609A1

WO2023109609A1 - Controller and electric vehicle

Info

Publication number: WO2023109609A1
Application number: PCT/CN2022/137187
Authority: WO
Inventors: 杨志兵; 张达强
Original assignee: 广东高标电子科技有限公司
Priority date: 2021-12-17
Filing date: 2022-12-07
Publication date: 2023-06-22

Abstract

The present application discloses a controller and an electric vehicle. The electric vehicle comprises the controller; the controller comprises a die-cast shell, power transistors, and an elastic piece, the die-cast shell is die-cast by means of a die, the die-cast shell comprises an outer shell and a bearing stage arranged inside the outer shell, a casting hole passing through the bottom of the outer shell is formed between the outer shell and the bearing stage, and a position-limiting locking fastener is arranged on the outer shell or the bearing stage; the power transistors are arranged on the bearing stage; the elastic piece comprises an abutting end and a position-limiting end, the abutting end and the position-limiting end are arranged at an angle, the position-limiting end is inserted into the casting hole, a position-limiting clamping fastener is arranged on the side of the position-limiting end facing the position-limiting locking fastener, the position-limiting clamping fastener is fastened with the position-limiting locking fastener, and the abutting end can be elastically deformed to abut the power transistors against the bearing stage.

Description

A kind of controller and electric vehicle

This application claims the priority of the Chinese patent application with application number 202123184574.3 filed with China Patent Office on December 17, 2021, the entire content of the above application is incorporated by reference in this application.

technical field

The present application relates to the technical field of electric vehicle controllers, for example, to a controller and an electric vehicle.

Background technique

The electric vehicle controller is the core control device used to control the start, operation, advance and retreat, speed, stop and other electronic devices of the electric vehicle motor. The MOS power tube in the electric vehicle controller needs to be positioned. In the related technology, the rubber body and the screw are usually used to fix the MOS power tube on the aluminum shell. The metal baffle protrudes toward the MOS power tube. The body is sleeved on the side of the metal baffle provided with the rigid part. The metal baffle is fixed and installed on the aluminum shell by screws. The rigid part presses the rubber body against the MOS power tube to limit the pressure of the MOS power tube. However, the limiting method of the MOS power tube in the related art complicates the structure, increases the internal space of the aluminum shell, increases the overall volume of the electric vehicle controller, increases the production cost, and produces a MOS power tube during operation. Heat, the rubber body is a material that is not easy to conduct heat, which is not conducive to the heat dissipation of the MOS power tube, and affects the stable operation of the electric vehicle. The aluminum shell is extruded, with a single shape and structure, and it is not easy to make protruding features again after molding .

Therefore, need badly a kind of controller and electric vehicle, to solve the above problems.

Contents of the invention

The present application provides a controller and an electric vehicle, in which the power tube is pressed and limited on the bearing platform by a shrapnel, the structure is simplified, and the overall volume of the controller is reduced.

An embodiment of the present application provides a controller, including:

Die-casting shell, the die-casting shell is molded by die-casting, the die-casting shell includes an outer shell and a bearing platform arranged inside the outer shell, and there is a gap between the outer shell and the bearing platform that passes through the bottom of the outer shell. The casting hole, the outer shell or the bearing platform is provided with a limit lock;

a power tube arranged on the carrying platform;

The shrapnel, the shrapnel includes an abutting end and a limiting end, the abutting end and the limiting end are set at an angle, the limiting end is inserted into the casting hole, and the limiting end faces One side of the limit lock is provided with a limit buckle, the limit buckle is engaged with the limit lock, and the abutting end can be elastically deformed to press the power tube against the on the platform.

An embodiment of the present application provides an electric vehicle, including the above-mentioned controller.

Description of drawings

Fig. 1 is a partial structural schematic diagram of the controller described in the embodiment;

Fig. 2 is an exploded view of a part of the structure of the controller described in the embodiment;

Fig. 3 is a sectional view of the controller described in the embodiment;

Fig. 4 is a partial enlarged view of position A in Fig. 3;

Fig. 5 is a structural schematic diagram of a first viewing angle of the die-casting shell described in the embodiment;

Fig. 6 is a structural schematic diagram of the second viewing angle of the die-casting shell described in the embodiment;

Fig. 7 is a schematic structural diagram of the shrapnel described in the embodiment.

In the picture:

1. Outer shell; 11. Casting hole;

2. Bearing platform; 21. Limit lock; 22. Sink;

3. Limit slot;

4. Power tube;

5, shrapnel; 51, abutment end; 511, abutment tooth; 52, limit end; 521, limit buckle;

6. Heat conduction parts.

Detailed ways

In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplify operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

In the description of this specification, descriptions referring to the terms "an embodiment", "example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application middle. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

The technical solution of the present application will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

This embodiment provides an electric vehicle. The electric vehicle includes a controller. As shown in FIGS. 1 and a bearing platform 2 arranged inside the outer casing 1, a casting hole 11 passing through the bottom of the outer casing 1 is provided between the outer casing 1 and the bearing platform 2, and a limit lock 21 is provided on the outer casing 1 or the bearing platform 2; The power tube 4 is arranged on the bearing platform 2; the shrapnel 5 includes an abutment end 51 and a limit end 52, the abutment end 51 and the limit end 52 are set at an angle, and the limit end 52 is inserted into the casting hole 11 to limit The side of the position end 52 facing the limit lock 21 is provided with a limit buckle 521, the limit buckle 521 is engaged with the limit lock 21, and the abutting end 51 can be elastically deformed to press the power tube 4 against the bearing platform 2 on.

For example, the die-casting shell is molded by die-casting, which has strong designability and is convenient for die-casting to form the limit lock 21; the outer shell 1 is formed by enclosing the bottom wall and four side walls; when the controller is assembled and produced, the power tube 4 Set on the carrier platform 2, one end of the elastic piece 5 abuts against the limit lock 21, and the other end of the elastic piece 5 abuts against the power tube 4, that is, the limit end 52 abuts against the limit lock 21, and The connecting end 51 abuts on the power tube 4, and since the limiting end 52 and the abutting end 51 form an included angle, the angle between the limiting end 52 and the abutting end 51 becomes larger or smaller, so that the abutting end The end 51 is elastically deformed to have elastic potential energy to press the power tube 4 on the supporting platform 2 , so as to fix the power tube 4 on the supporting platform 2 . In this embodiment, the die-casting outer casing 1 is applied, and the casting hole 11 passing through the bottom of the outer casing 1 is die-casted between the die-casting outer casing 1 and the bearing platform 2, and the position-limiting end 52 is inserted into the casting shape. The back of the hole 11 is engaged with the limit lock 21, so that the power tube 4 is pressed down on the bearing platform 2, and the heat of the power tube 4 is transferred to the outer casing 1 through the bearing platform 2 for heat dissipation, which improves the heat dissipation effect and simplifies The structure of the controller is improved, the overall volume of the controller is reduced, the production cost is reduced, and the stable operation of the electric vehicle can be guaranteed.

In some other embodiments, the limit lock 21 is arranged on the inner wall of the outer shell 1, and the level of the limit lock 21 is higher than the level of the power tube 4. During assembly and production, the limit end 52 abuts against the limit lock 21 and abuts the abutment end 51 on the power tube 4, so that the angle between the limit end 52 and the abutment end 51 is reduced, so that the abutment end 51 is elastically deformed and has elasticity The potential energy is used to press the power tube 4 against the carrying platform 2 .

In this embodiment, a limiting groove 3 is formed between the inner side wall of the outer shell 1 and the outer side wall of the carrying platform 2, the limiting lock 21 is located in the limiting groove 3 and the limiting locking buckle 21 is arranged on the supporting platform 2 , The limit lock 21 is made by die-casting the mold in the limit groove 3 . The level of the limit lock 21 is lower than the level of the power tube 4. When the controller is assembled and produced, the limit end 52 is abutted against the limit lock 21 and the abutment end 51 is abutted against the power tube 4. , the bending transition between the abutment end 51 and the limit end 52 abuts on the side wall of the outer casing 1 as a force fulcrum, and the limit end 52 is inserted into the limit groove 3 and abuts on the limit The lock 21, the angle between the limiting end 52 and the abutting end 51 becomes larger, so that the abutting end 51 elastically deforms and possesses elastic potential energy to press the power tube 4 against the carrying platform 2, so that the power tube 4 fixed on the platform 2. The limit lock 21 is formed by die-casting in the limit groove 3 through a mold, thereby reducing process requirements and manufacturing costs.

For example, the position-limiting end 52 is inserted into the position-limiting slot 3 , and the position-limiting buckle 521 is engaged with the position-limiting lock 21 . In the process of pressing down the limiting end 52 into the limiting groove 3, the limiting buckle 521 is blocked by the limiting lock 21 and elastically deforms, and the limiting end 52 is continuously pressed down hard, and the limiting buckle 521 After crossing the position of the limit lock 21 downwards, it is clamped on the root of the limit lock 21 because of the elastic potential energy to restore the original shape, so that the limit end 52 is locked with the limit lock 21, and the limit end 52 can be avoided. Easily detach from the limiting groove 3 to ensure the pressure stability of the shrapnel 5 against the power tube 4 .

For example, the limit buckle 521 is stamped from the body of the limit end 52 .

For example, the shrapnel 5 is made of elastic metal materials, such as spring steel and beryllium bronze.

For example, a sunken groove 22 is recessed on the side of the carrying platform 2 facing the outer casing 1 , and the limit lock 21 is a top side wall of the sunken groove 22 . The die-casting shell is formed by a mold, and it is not easy to process the die-casting shell directly after forming. Therefore, in the forming process of this embodiment, the mold and the die-casting shell are set as a collision matching structure, corresponding to the sinking groove 22 of this embodiment, and the limit lock The buckle 21 is the top side wall of the sinker 22, so the die-casting shell will not cause the mold to shift in the limiting groove 3 during the molding process, ensuring the success rate of die-casting.

For example, as shown in Figure 5, the casting hole 11 corresponds to the sinker 22 at the bottom of the limit groove 3, and the casting hole 11 is used to avoid the mold. The die-casting shell obtained by integral molding in this embodiment is in the position of the original mold structure A casting hole 11 , a sunken groove 22 and a limit lock 21 are formed.

For example, multiple power tubes 4 are provided, and the multiple power tubes 4 are arranged side by side on the carrier platform 2 .

For example, as shown in FIG. 7 , the abutting end 51 is provided with a plurality of abutting teeth 511 , and the abutting teeth 511 are used to press against the power tube 4 from the top of the power tube 4 . In some other embodiments, a limiting boss is provided on the top surface of the carrier platform 2 away from the elastic piece 5, and the elastic piece 5 presses the power tube 4 on the limiting boss in the horizontal direction, which can also limit the power tube 4. bit fixed.

For example, as shown in FIG. 4 , a heat conducting member 6 is disposed between the top surface of the carrying platform 2 and the bottom surface of the power tube 4 .

Claims

A controller comprising:

Die-casting shell, the die-casting shell is formed by die-casting, the die-casting shell includes an outer shell (1) and a bearing platform (2) arranged inside the outer shell (1), the outer shell (1) and the A casting hole (11) passing through the bottom of the outer casing (1) is provided between the bearing platforms (2), and a limit lock (21) is arranged on the outer casing (1) or the bearing platform (2) ;

a power tube (4), arranged on the carrying platform (2);

A shrapnel (5), the shrapnel (5) includes an abutting end (51) and a limiting end (52), the abutting end (51) and the limiting end (52) are set at an angle, the The limiting end (52) is inserted into the casting hole (11), and the limiting end (52) is provided with a limiting buckle (521) on the side facing the limiting lock (21), and the The limit buckle (521) is engaged with the limit lock buckle (21), and the abutting end (51) can be elastically deformed to press the power tube (4) against the carrying platform (2) superior.
The controller according to claim 1, wherein a limiting slot (3) is formed between the inner side wall of the outer shell (1) and the outer side wall of the carrying platform (2), and the limiting lock ( 21) Located in the limit groove (3) and the limit lock (21) is set on the carrier (2), the limit lock (21) is formed by the mold in the limit groove (3) Made by internal die-casting.
The controller according to claim 2, wherein the limiting end (52) is inserted into the limiting groove (3).
The controller according to claim 3, wherein the limit buckle (521) is punched from the body of the limit end (52).
The controller according to claim 2, wherein a sunken groove (22) is provided on the side of the carrying platform (2) facing the outer shell (1), and the limit lock (21) is The top side wall of the sinker (22).
The controller according to claim 5, wherein the cast hole (11) corresponds to the sinker (22) at the bottom of the limiting groove (3), and the cast hole (11) is used for To avoid the mold.
The controller according to claim 1, wherein a plurality of said power tubes (4) are provided, and a plurality of said power tubes (4) are arranged side by side on the carrier platform (2).
The controller according to claim 7, wherein the abutment end (51) is provided with a plurality of abutment teeth (511), and the abutment teeth (511) are arranged to separate from the power tube (4) The top of the top is pressed against the power tube (4).
The controller according to claim 1, wherein a heat conducting member (6) is arranged between the top surface of the carrying platform (2) and the bottom surface of the power tube (4).
An electric vehicle, comprising the controller according to any one of claims 1 to 9.