CN211605246U

CN211605246U - Battery module, battery module and electric automobile

Info

Publication number: CN211605246U
Application number: CN202020471324.4U
Authority: CN
Inventors: 邱春林; 刘丽荣; 张欢
Original assignee: Farasis Energy Ganzhou Co Ltd
Current assignee: Farasis Energy Ganzhou Co Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-09-29
Anticipated expiration: 2030-04-02

Abstract

The invention relates to the field of battery packaging and safety, in particular to a battery module, a battery module and an electric automobile. The utility model provides a battery module, includes a plurality of support box frames that arrange in proper order, be provided with battery monomer in the support box frame, every the support box frame sets up to open with one side in the array orientation, and is adjacent connect through connection structure between the support box frame, so that battery monomer centre gripping location is adjacent between the support box frame. The battery module of the utility model utilizes the integrated supporting box frame to support and protect the battery body; arranging the single battery in the supporting box so that the supporting box can play a role of a supporting frame; avoid extra design to increase supporting structure to support to battery monomer and pile up in groups and implant numerous and diverse radiator unit heat conduction, simplified battery module's structure, reinforcing battery module structural integrity, easy access and installation.

Description

Battery module, battery module and electric automobile

Technical Field

The invention relates to the field of battery packaging and safety, in particular to a battery module, a battery module and an electric automobile.

Background

The current laminate polymer battery module adopts the plastic-aluminum membrane encapsulation, and laminate polymer battery monomer itself is soft relatively after its encapsulation, and support nature and structural strength are relatively weak, and what laminate polymer battery module was in groups generally needs additional design to increase bearing structure spare to support to pile up battery monomer in groups and implant radiator unit heat conduction, lead to a series of shortcomings such as the module energy density reduction that internals quantity is many, weight increase, cost increase and crowded occupation of inner space leads to.

Current laminate polymer battery module utilizes the plastic fixed bolster to support battery monomer, and extra fin and utmost point ear backup pad of increasing simultaneously help heat dissipation and bearing electricity core utmost point ear, and current bearing structure spare makes the battery module have the obvious shortcoming such as internals in large quantity, weight is big, structural integrity is poor and space utilization is not high, and the battery module assembly is more complicated, integrates the design degree not high, and the part bears the weight of the function more singlely.

Disclosure of Invention

The invention aims to solve the problems of complicated parts and low integration degree of the existing battery soft package module in the prior art.

In order to achieve the above object, an aspect of the present invention provides a battery module, which includes a plurality of sequentially arranged support box frames, wherein battery cells are disposed in the support box frames, each of the support box frames is configured to be open at the same side in an arrangement direction, and adjacent support box frames are connected by a connection structure, so that the battery cells are clamped and positioned between the adjacent support box frames.

Preferably, the supporting box frame is a cuboid which is open on one side in the arrangement direction, and comprises a front side plate, a rear side plate, an upper side plate, a lower side plate and a left side plate.

Preferably, the tabs on the battery cells are arranged relative to the front side plate and/or the rear side plate of the support box frame, tab avoiding openings are formed in the front side plate and/or the rear side plate, and the front side plate and the rear side plate are arranged to be plastic supports.

Preferably, the upper side plate, the lower side plate and the left side plate are metal plates; the right ends of the upper side plate and the lower side plate are provided with U-shaped insulating film buckling end portions, so that adjacent supporting box frames are insulated.

Preferably, a first insulating film is disposed on the left side plate inside the support box frame.

Preferably, the connecting structure comprises bosses respectively arranged on the adjacent supporting box frames and holes for inserting the bosses; the boss is connected with the inner wall of the hole through hot melt adhesive.

Preferably, the supporting box frame is internally provided with single batteries which are sequentially arranged in the arrangement direction of the supporting box frame, and the single batteries are clamped with expansion foam.

The invention provides a battery module, which comprises any one of the battery modules, and further comprises a shell, wherein the shell comprises a U-shaped lower shell, an upper cover plate, a front shell plate and a rear shell plate, the front shell plate and the rear shell plate are positioned on the front side and the rear side of the battery module, so that the shell covers the battery module, and heat insulation foam is arranged inside two opposite sides of the U-shaped lower shell.

Preferably, a cavity is formed in the bottom of the supporting box frame, and heat-conducting glue is arranged in the cavity, so that the bottom of the supporting box frame is connected with the U-shaped lower shell through the heat-conducting glue.

The third aspect of the invention provides an electric vehicle, which comprises any one of the battery modules.

The battery module of the utility model utilizes the integrated supporting box frame to support and protect the battery body; arranging the single battery in the supporting box so that the supporting box can play a role of a supporting frame; avoid extra design to increase supporting structure to support to battery monomer and pile up in groups and implant numerous and diverse radiator unit heat conduction, simplified battery module's structure, reinforcing battery module structural integrity, easy access and installation.

Drawings

FIG. 1 is a schematic view of the sequential arrangement of the support box frames according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a support case frame and a battery cell;

fig. 3 is a schematic structural view of the battery module.

Description of the reference numerals

1-supporting box frame, 2-rear side plate, 3-front side plate, 4-upper side plate, 5-lower side plate, 6-first insulating film, 7-U-shaped insulating film, 8-left side plate, 9-battery monomer, 10-expansion foam, 11-battery module, 12-pole lug, 13-upper cover plate, 14-thermal insulation foam, 15-U-shaped lower shell and 16-pole lug avoiding opening.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The invention provides a battery module 11, which is characterized by comprising a plurality of sequentially arranged support box frames 1, wherein battery monomers 9 are arranged in the support box frames 1, each support box frame 1 is arranged to be open at the same side in the arrangement direction, and adjacent support box frames 1 are connected through a connecting structure, so that the battery monomers 9 are clamped and positioned between the adjacent support box frames 1.

Preferably, the support box frame 1 is provided in a rectangular parallelepiped shape having one side opened in the arrangement direction, and the support box frame 1 includes a front side plate 3, a rear side plate 2, an upper side plate 4, a lower side plate 5, and a left side plate 8. The gap at one side of the supporting box frame 1 is convenient for the installation and the maintenance of the battery monomer 9, and the supporting box frame 1 is prevented from being opened when the battery monomer 9 is operated. If support box frame 1 is the box body form of sealing, the face that contacts between the support box frame can increase certain wall thickness then, and corresponding adjustment can be realized completely to the left side board 8 of adjustment support box frame, compares in the support box frame 1 of one side breach, and the support box frame 1 of sealing form can not play better supporting effect. In addition, the battery cells are generally rectangular, so the supporting box frame is correspondingly arranged to be rectangular; namely, the shape of the supporting box frame can be adaptively changed along with the shape of the battery cell.

Preferably, the tab 12 of the battery cell 9 is disposed opposite to the front plate 3 and/or the rear plate 2 of the support box frame 1, a tab avoiding opening 16 is formed on the front plate 3 and/or the rear plate 2, and the front plate 3 and the rear plate 2 are disposed as plastic supports. Preceding curb plate 3 with the opening 16 is kept away to utmost point ear on the posterior lateral plate 2 and is used for utmost point ear to stretch out from supporting box frame 1 is inside, and utmost point ear output electrified part, and the plastic support is insulating in order to completely cut off electric leakage risk, improves battery module 11's security.

Preferably, the upper side plate 4, the lower side plate 5 and the left side plate 8 are made of metal plates; the right ends of the upper side plate 4 and the lower side plate 5 are provided with U-shaped insulating films 7 which are buckled at the ends, so that the adjacent supporting box frames 1 are insulated. The supporting box frame 1 is made of a metal plate with high mechanical strength, so that a good supporting effect can be achieved, and the external interference resistance of the battery module 11 is improved; and the support box frames 1 are mutually insulated, so that the electric leakage range is prevented from being enlarged, and the safety of the battery module is further improved.

Preferably, a first insulating film 6 is provided on the left side plate 8 inside the support box frame 1. The insulating film 6 improves the insulating effect between the support box frame 1 and the battery cell, reduces the risk of electric leakage of the support box frame 1, and improves the safety of the battery module 11.

Preferably, the utility model provides a connected mode between the support box frame: the connecting structure comprises bosses and holes for inserting the bosses, which are respectively arranged on the adjacent supporting box frames 1; the boss is connected with the inner wall of the hole through hot melt adhesive. The supporting box frames 1 are connected in a positioning mode through the bosses and the holes, so that the convenience of arranging and mounting the supporting box frames 1 is improved; the hot melt adhesive enhances the connection strength between the support box frames 1, and improves the external interference resistance of the battery module 11.

Preferably, the utility model provides a second kind support connected mode between the box frame: the supporting boxes are connected through a detachable clamping piece, and the clamping piece comprises a first clamping piece and a second clamping piece which are respectively arranged on the adjacent supporting box frames and can enable the adjacent supporting box frames to be clamped with each other; preferably, the first engaging member is a protrusion, and the second engaging member is a buckle. Battery module, buckle formula connected mode can dismantle joint support box frame. The buckle type connection mode is simple and convenient to operate, the installation process is simplified, and the overhaul is convenient. Correspondingly, the bulges can be a plurality of arranged bulges, and the buckle can be clamped with any bulge on the adjacent supporting box frame so as to adjust the tightness degree of the supporting box frame. The installation tightness is adjusted according to actual conditions, and the method has good adaptability.

Preferably, the utility model provides a third kind the connected mode between the support box frame: both ends all are provided with splint about battery module 11, are provided with the first through-hole that enables stud to pass on the splint, the stud both ends are provided with the nut, so that splint are in support box frame 1 arranges the direction and presss from both sides and establish support box frame 1. In the battery module, the tightness degree between the supporting box frames can be adjusted by the nuts, and the clamping plates can be tightly adjusted to facilitate the installation of the battery module; the nut can be rotated to carry out corresponding debugging after installation. The nut can be disassembled by rotating, and the maintenance is convenient.

Preferably, battery monomers 9 sequentially arranged in the arrangement direction of the support box frame 1 are arranged in the support box frame 1, and expansion foam 10 is arranged between the battery monomers 9. The expansion foam 10 is used for absorbing the thermal deformation of the battery monomer 9, so that the phenomenon that the battery module 11 is uneven is avoided, the condition that the heat dissipation of the battery module is uneven due to unevenness is avoided, and the quality of the battery is improved.

The second aspect of the invention provides a battery module, which comprises any one of the battery modules 11, and further comprises a shell, wherein the shell comprises a U-shaped lower shell 15, an upper cover plate 13, and a front shell plate and a rear shell plate which are positioned at the front side and the rear side of the battery module 11, so that the shell surrounds and covers the battery module, and heat insulation foam is arranged inside two opposite sides of the U-shaped lower shell 15.

The battery module of the utility model utilizes the integrated supporting box frame to support and protect the battery body; arranging the single battery in the supporting box so that the supporting box can play a role of a supporting frame; avoid extra design to increase supporting structure to support to battery monomer and pile up in groups and implant numerous and diverse radiator unit heat conduction, simplified battery module's structure, reinforcing battery module structural integrity, easy access and installation. It separates to have thermal-insulated bubble cotton between two inboards of U-shaped casing and the inside battery module, and thermal-insulated bubble cotton is pasted on both sides electricity core side, does benefit to the module inside and is thermal-insulated with the outside, avoids the overheated performance that influences the part outside the battery of battery module, improves the device security.

Preferably, a cavity is formed in the bottom of the support box frame 1, and heat-conducting glue is arranged in the cavity, so that the bottom of the support box frame 1 is connected with the U-shaped lower shell 15 through the heat-conducting glue. The heat-conducting glue is used for guiding heat transferred to the supporting box frame 1 by the battery monomer 9, optimizes the service environment of the battery, prolongs the service life of the battery, avoids the explosion hazard caused by overheating of the battery module, and improves the safety of the battery module.

The third aspect of the invention provides an electric vehicle, which comprises any one of the battery modules. The battery module of the utility model utilizes the integrated supporting box frame to support and protect the battery body; arranging the single battery in the supporting box so that the supporting box can play a role of a supporting frame; avoid extra design to increase supporting structure to support to battery monomer and pile up in groups and implant numerous and diverse radiator unit heat conduction, simplified battery module's structure, reinforcing battery module structural integrity, easy access and installation.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. The utility model provides a battery module (11), its characterized in that includes a plurality of support box frames (1) of arranging in proper order, be provided with battery monomer (9) in the support box frame (1), every support box frame (1) sets up to open in the same one side of range direction, and is adjacent support box frame (1) between connect through connection structure, so that battery monomer (9) centre gripping location is adjacent support between the box frame (1).

2. The battery module (11) according to claim 1, wherein the support case frame (1) is provided in a rectangular parallelepiped shape open on one side in the arrangement direction, and the support case frame (1) includes a front side plate (3), a rear side plate (2), an upper side plate (4), a lower side plate (5), and a left side plate (8).

3. The battery module (11) according to claim 2, wherein the tabs (12) on the battery cells (9) are arranged relative to the front side plate (3) and/or the rear side plate (2) of the support box frame (1), the front side plate (3) and/or the rear side plate (2) are formed with tab avoiding openings (16), and the front side plate (3) and the rear side plate (2) are arranged as plastic supports.

4. The battery module (11) according to claim 3, wherein the upper side plate (4), the lower side plate (5), and the left side plate (8) are provided as metal plates; the right ends of the upper side plate (4) and the lower side plate (5) are provided with U-shaped insulating films (7) which are buckled at the ends, so that the adjacent supporting box frames (1) are insulated.

5. The battery module (11) according to claim 4, wherein a first insulating film (6) is provided on the left side plate (8) inside the support case frame (1).

6. The battery module (11) according to claim 5, wherein the connecting structure comprises bosses and holes for inserting the bosses respectively arranged on the adjacent support box frames (1); the boss is connected with the inner wall of the hole through hot melt adhesive.

7. The battery module (11) according to any one of claims 1 to 6, wherein the support box frame (1) is internally provided with battery cells (9) which are sequentially arranged in the arrangement direction of the support box frame (1), and expansion foam (10) is clamped between the battery cells (9).

8. A battery module, characterized by comprising the battery module (11) as claimed in any one of claims 1 to 7, and further comprising a housing, wherein the housing comprises a U-shaped lower housing (15), an upper cover plate (13), and a front shell plate and a rear shell plate which are located at the front side and the rear side of the battery module (11), so that the housing encloses the battery module, and heat insulation foam (14) is arranged inside the two opposite sides of the U-shaped lower housing (15).

9. The battery module according to claim 8, wherein a cavity is formed in the bottom of the support case frame (1), and a heat-conducting adhesive is formed in the cavity, so that the bottom of the support case frame (1) is connected with the U-shaped lower case (15) through the heat-conducting adhesive.

10. An electric vehicle characterized by comprising the battery module according to claim 8 or 9.