CN212380514U - Electric automobile, battery module and module end plate thereof - Google Patents

Abstract

The utility model discloses an electric automobile, a storage battery module and a module end plate thereof, wherein the module end plate of the storage battery module comprises a metal shell, an injection molding filler and a fastener, and the metal shell is internally provided with a hollow cavity; the injection molding filling body is filled in the hollow cavity; the fastener is used for fixing the metal shell and the injection molding filling body. When the module end plate needs to be assembled, the metal shell and the injection molding filling body are firstly processed, then the injection molding filling body is installed in the hollow cavity of the metal shell, and then the injection molding filling body and the metal shell are fixed through the fastening piece. In the module end plate that this application provided, through the shell of metal casing conduct module end plate, guarantee the intensity of module end plate, set up in the inside cavity for the obturator that moulds plastics, the weight is lighter, and then has reduced the whole weight of module end plate, consequently, the module end plate that this application provided is when guaranteeing intensity, and weight reduction.

Description

Electric automobile, battery module and module end plate thereof

Technical Field

The utility model relates to a power battery technical field, in particular to battery module's module end plate. The utility model discloses still relate to a battery module including above-mentioned module end plate. The utility model discloses relate to an electric automobile including above-mentioned battery module again.

Background

The power battery serves as a power source of the electric vehicle and plays a role in the design and development of the electric vehicle.

The battery module is that module end plate, curb plate are together fixed with a plurality of electric cores through the welded mode usually, and in order to guarantee battery module's structural stability, the module end plate will possess sufficient intensity, and in order to satisfy passenger car and commercial car and the commonality of special type car simultaneously, improvement energy density, the requirement of intensity is guaranteed to the module end plate.

The whole of the module end plate of the traditional power storage battery is usually of a metal structure, so that the whole weight is heavier, and the weight of the whole machine is increased.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to reduce the weight of the module end plate while ensuring the strength.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery module's module end plate, this module end plate when guaranteeing intensity, weight reduction. Another object of the present invention is to provide a battery module including the above module end plate. Still another object of the present invention is to provide an electric vehicle including the above battery module.

In order to achieve the above object, the utility model provides a module end plate of battery module, a serial communication port, include:

the metal shell is provided with a hollow cavity;

the injection molding filling body is filled in the hollow cavity;

and the fastener is used for fixing the metal shell and the injection molding filling body.

Preferably, the side wall of the metal shell is provided with a mounting hole for mounting a fastener.

Preferably, the mounting holes are multiple, and are respectively a first mounting hole located in the middle and second mounting holes located on two opposite sides of the first mounting hole.

Preferably, the number of the mounting holes is multiple, and all the mounting holes are symmetrically distributed by taking a center line of the side wall of the metal shell as a center line.

Preferably, the fastener is an injection molding piece fixed with the injection molding filling injection molding, and an opening for the injection molding filling body to enter the hollow cavity is formed in the end part of the metal shell.

Preferably, the metal housing is an aluminum extruded housing.

Preferably, still including installing the busbar end cover on the obturator of moulding plastics, the obturator of moulding plastics is equipped with to the lateral wall opening, and is used for installing the mounting groove of busbar end cover, the busbar end cover is the high molecular polymer end cover.

Preferably, one of the mounting groove and the bus bar end cover is provided with a limiting hole, the other is provided with a limiting bulge clamped in the limiting hole, and the outer wall of the injection molding filling body is attached to the wall surface of the hollow cavity.

A battery module comprising a module end plate, the module end plate being any of the module end plates described above.

An electric automobile comprises a storage battery module, wherein the storage battery module is the storage battery module.

In the above technical solution, the module end plate of the battery module provided by the present invention includes a metal shell, an injection molding filler and a fastener, wherein the metal shell has a hollow cavity inside; the injection molding filling body is filled in the hollow cavity; the fastener is used for fixing the metal shell and the injection molding filling body. When the module end plate needs to be assembled, the metal shell and the injection molding filling body are firstly processed, then the injection molding filling body is installed in the hollow cavity of the metal shell, and then the injection molding filling body and the metal shell are fixed through the fastening piece.

Can know through the above-mentioned description, in the module end plate that this application provided, through the shell of metal casing conduct module end plate, guarantee the intensity of module end plate, set up in the inside cavity for the obturator that moulds plastics, the weight is lighter, and then has reduced the whole weight of module end plate, consequently, the module end plate that this application provided is when guaranteeing intensity, and weight reduction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a module end plate according to an embodiment of the present invention;

fig. 2 is an exploded view of a module end plate according to an embodiment of the present invention.

Wherein in FIGS. 1-2: 1. a busbar end cap; 2. a metal housing; 2-1, a second mounting hole; 2-2, a first mounting hole; 3. and (5) injection molding the filling body.

Detailed Description

The core of the utility model is to provide a module end plate of battery module, this module end plate when guaranteeing intensity, weight reduction. Another core of the present invention is to provide a battery module including the above module end plate. The utility model discloses a still another core provides an electric automobile including above-mentioned battery module.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 and fig. 2.

In a specific embodiment, a module end plate of a battery module provided in an embodiment of the present invention includes a metal casing 2, an injection molding filler 3 and a fastener, wherein a hollow cavity is formed inside the metal casing 2; the injection molding filling body 3 is filled in the hollow cavity; the fastener is used for fixing the metal shell 2 and the injection molding filler 3. Preferably, the outer wall of the injection molding filling body 3 is attached to the wall surface of the hollow cavity. Specifically, the metal case 2 is an aluminum extruded case, that is, the gold metal may be formed by aluminum extrusion.

The injection molding filler 3 may be a high molecular polymer filler, and the high molecular material may be PA (Polyamide), PP (Polypropylene), or the like.

When the module end plate needs to be assembled, the metal shell 2 and the injection molding filler 3 are firstly processed, then the injection molding filler 3 is installed in the hollow cavity of the metal shell 2, and then the injection molding filler 3 and the metal shell 2 are fixed through a fastener.

It can be known through the above-mentioned description, in the module end plate that this application embodiment provided, through the shell of metal casing 2 conduct module end plate, guarantee the intensity of module end plate, what set up in the inside cavity is the obturator 3 that moulds plastics, and the weight is lighter, and then has reduced the whole weight of module end plate, consequently, the module end plate that this application provided is when guaranteeing intensity, and weight reduction. The main structure adopts aluminum product extrusion and polymer material injection moulding, possesses good structural strength, under the circumstances of guaranteeing battery module fixed strength, has reduced battery module's weight and cost, promotes the competitive advantage of product.

In one embodiment, the side walls of the metal housing 2 are provided with mounting holes for mounting fasteners.

Specifically, the mounting holes are multiple, and are respectively a first mounting hole 2-2 located in the middle and second mounting holes 2-1 located on two opposite sides of the first mounting hole 2-2. Specifically, the number of the mounting holes may be eight.

Preferably, the number of the mounting holes is plural, and all the mounting holes are symmetrically distributed by taking the center line of the side wall of the metal shell 2 as the center line. As shown in the figure, the two second mounting holes 2-1 are located in the middle, four first mounting holes 2-2 are distributed on two sides of the middle, and the first mounting holes 2-2 are distributed at the upper and lower positions of the first mounting holes 2-2, so that the injection molding filling body 3 and the metal shell 2 can be effectively fixed conveniently.

In a specific embodiment, the fastener is a glue injection member fixed with injection filling injection molding, and an opening for the injection filling body 3 to enter the hollow cavity is formed at the end of the metal shell 2.

The module end plate of the storage battery module further comprises a bus bar end cover 1 installed on the injection molding filling body 3, and an installation groove used for installing the bus bar end cover 1 is formed in the injection molding filling body 3.

Mounting groove and 1 one of busbar end cover are equipped with spacing hole, and the other is equipped with the spacing arch of joint in spacing hole. Specifically, the outer wall of busbar end cover 1 that is located the mounting groove position butts with the lateral wall of cavity.

The busbar end cover 1 is made of high polymer materials such as PA (Polyamide) and PP (Polypropylene) through injection molding, plays a role in bearing bus-bar, and prevents the busbar from contacting the metal shell 2 to cause module short circuit. Wherein, the spacing hole that the obturator 3 of moulding plastics came out through machine tooling for installation busbar end cover 1 is equipped with the spacing arch of joint on spacing hole on busbar end cover 1.

The application provides a battery module, including the module end plate, wherein the module end plate is above-mentioned any kind of module end plate. The foregoing describes the specific structure of the module end plate, and the present application includes the module end plate, which also has the technical effects described above. Specifically, the battery module may be a square-casing battery module.

The application provides an electric automobile, including battery module, wherein battery module is any kind of above-mentioned battery module. The foregoing describes a specific structure of a battery module, and the present application includes the above battery module, which also has the above technical effects.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A battery module end plate, comprising:

the metal shell (2), the said metal shell (2) has hollow cavities;

the injection molding filling body (3) is filled in the hollow cavity;

and a fastener for fixing the metal shell (2) and the injection molding filling body (3).

2. The module end plate of battery module according to claim 1, characterized in that the side wall of the metal case (2) is provided with mounting holes for mounting fasteners.

3. The module end plate of battery module according to claim 2, wherein the mounting holes are plural, respectively a first mounting hole (2-2) located at a middle position and second mounting holes (2-1) located at opposite sides of the first mounting hole (2-2).

4. The module end plate of battery module according to claim 2, wherein the number of the mounting holes is plural, and all the mounting holes are symmetrically distributed with the center line of the side wall of the metal case (2) as the center line.

5. The battery module end plate according to claim 1, wherein the fastening member is an injection molding member fixed to the injection filling injection molding, and an opening for the injection filling body (3) to enter the hollow cavity is formed at an end of the metal housing (2).

6. The battery module end plate according to claim 1, wherein the metal case (2) is an aluminum extruded case.

7. The module end plate of a battery module according to any one of claims 1 to 6, further comprising a busbar end cap (1) mounted on the injection molded packing body (3), the injection molded packing body (3) being provided with a mounting groove that is open to a side wall and is used for mounting the busbar end cap (1), the busbar end cap (1) being a high polymer end cap.

8. The end plate of battery module set according to claim 7, wherein one of the mounting groove and the bus bar end cover (1) is provided with a limiting hole, the other one is provided with a limiting protrusion clamped in the limiting hole, and the outer wall of the injection molding filler (3) is attached to the wall surface of the hollow cavity.

9. A battery module comprising a module end plate, wherein the module end plate is the module end plate of any one of claims 1-8.

10. An electric vehicle comprising a battery module, wherein the battery module is the battery module of claim 9.

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