CN210296448U

CN210296448U - Battery module assembly structure

Info

Publication number: CN210296448U
Application number: CN201921392124.3U
Authority: CN
Inventors: 李世明; 徐秋鹏; 朱旭
Original assignee: Jiangxi Yotteo Auto Technology Co ltd
Current assignee: Jiangxi Yotteo Auto Technology Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-04-10
Anticipated expiration: 2029-08-26

Abstract

The utility model is suitable for a power battery technical field provides a battery module package assembly, and this structure includes: a module housing having an upward opening; the plurality of accommodating cavities are arranged in the module shell, have upward openings and are arranged in a matrix form; the cover plate is arranged at the top of the module shell, and a bus bar, a sampling line and a power line are arranged on the cover plate; and a stop frame arranged at the bottom of the cover plate. The screws of the side plates around the battery module and the fixed side plates are reduced, the heat conducting fins between the two battery cores are removed, the end plate shell of each battery core is reduced, the lightweight and compact design effect is improved, the size can be reduced, the energy density is increased, the connected module wall and the integrated module shell are adopted, and the shock resistance of the battery module is improved.

Description

Battery module assembly structure

Technical Field

The utility model belongs to the technical field of power battery, a battery module package assembly is provided.

Background

With the development of society, the electric automobile is used as a vehicle for energy conservation and emission reduction, the development speed is faster and faster, and the use quantity is more and more. In an electric vehicle, the performance of a battery system as a function of supplying electric energy greatly affects the quality of the electric vehicle. The basic components of the battery system mainly comprise battery modules, a battery management system, a high-low voltage circuit, a liquid cooling device and the like, wherein each battery module is formed by connecting a plurality of battery cell monomers in series or in parallel. In order to improve the energy density, the performance safety and the service life of the battery, the reasonable design of the arrangement structure of the battery module is very important. In the technology now, battery module structure has diversified design, and the most common mode is in battery module, and every electric core monomer all installs frame, conducting strip, buffer shim, then concatenates and connects, has shell, buffer shim, conducting strip between two adjacent battery core monomers at a distance from to every battery core has a very thick end plate to fix on battery module's support. For the battery core, the thickness and the weight of the battery module are increased, the size is increased, and in addition, a battery module shell is arranged outside the battery module.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a battery module package assembly aims at reducing the volume of battery module through the module casing of integration, improves the energy density of battery simultaneously.

The utility model discloses a realize like this, a battery module package assembly, this package assembly includes:

a module housing having an upward opening;

the plurality of accommodating cavities are arranged in the module shell, have upward openings and are arranged in a matrix form;

the cover plate is arranged at the top of the module shell, and a bus bar, a sampling line and a power line are arranged on the cover plate;

and a stop frame arranged at the bottom of the cover plate.

Furthermore, the expansion gaskets are arranged on the four side walls of the accommodating cavity, and the bottom of the accommodating cavity is provided with the buffer gasket.

Furthermore, the side wall of the accommodating cavity is made of a metal material.

Further, the module housing is made of plastic or light metal material.

The utility model provides a battery module package assembly has following beneficial effect:

1. the screws of the side plates and the fixed side plates around the battery module are reduced, the heat conducting fins between the two battery cores are removed, the end plate shell of each battery core is reduced, the light-weight and compact design effect is improved, the size can be reduced, and the energy density is increased.

2. The module wall is made of metal materials, so that the uniformity of the temperature of the battery is improved, and the service life of the battery is prolonged;

3. the shock resistance of the battery module is improved by adopting the connected module wall and the integrated module shell.

Drawings

Fig. 1 is a schematic view of an assembly structure of a battery module according to an embodiment of the present invention;

1. the module comprises a module shell, a 2-containing cavity, a 3-cover plate, a 4-expansion pad and a 5-buffer gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic view of an assembly structure of a battery module according to an embodiment of the present invention, which is only shown in the relevant portions of the embodiment of the present invention for convenience of description.

The structure includes:

a module case 1 having an upward opening;

the module comprises a plurality of accommodating cavities 2 arranged in a module shell 1, wherein the accommodating cavities 2 are upward opened and are arranged in a matrix form;

the cover plate 3 is arranged at the top of the module shell 1, and a bus bar, a sampling line and a power line are arranged on the cover plate 3;

and a stopping frame (not shown) arranged at the bottom of the cover plate 3 and used for fixing the single batteries in the module shell.

The embodiment of the utility model provides an in, the expansion pad 4 that is equipped with on four lateral walls in chamber 2 for the pressure that the buffering charging process arouses because the electric core inflation is equipped with and is used for absorbing buffer pad 5 in the bottom that holds chamber 2.

The embodiment of the utility model provides an in, in order to make the electric core heat dissipation in the battery module even, improve the uniformity of electric core temperature, the lateral wall that holds chamber 2 adopts metal material to make.

In the embodiment of the present invention, in order to reduce the weight of the battery module, the module case 1 is made of plastic or light metal material.

The assembling method based on the assembling structure comprises the following steps:

welding the connected latticed module wall to the inner side wall of the module shell, and dividing the inner space of the module shell into a plurality of accommodating cavities which are arranged in a matrix form;

expansion gaskets are fixed on the four side walls of the accommodating cavity, buffer gaskets are fixed at the bottom of the accommodating cavity,

placing the single battery cores in the accommodating cavity one by one, and contacting one polar column of each single battery core with the buffer gasket;

connecting the single battery cores in series and parallel through a bus bar, connecting a power bus with a total positive pole and a main negative pole of the battery module, and electrically connecting a sampling line with a positive pole column or a negative pole column of the single battery core;

the cover plate is fixed on the top of the battery module shell through the stopping frame.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a battery module package assembly which characterized in that, battery module package assembly includes:

a module housing having an upward opening;

and a stop frame arranged at the bottom of the cover plate.

2. The battery module assembling structure according to claim 1, wherein the expansion spacers are provided on the four sidewalls of the receiving cavity, and the buffer spacer is provided at the bottom of the receiving cavity.

3. The battery module assembly structure of claim 1, wherein the side walls of the receiving cavity are made of a metal material.

4. The battery module assembly structure of claim 1, wherein the module case is made of plastic or light metal material.