CN216958415U

CN216958415U - Battery module

Info

Publication number: CN216958415U
Application number: CN202220318580.9U
Authority: CN
Inventors: 冯玉旦
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-12
Anticipated expiration: 2032-02-17

Abstract

The utility model belongs to the technical field of batteries and discloses a battery module. This battery module includes curb plate and output utmost point base, be equipped with the installation department on the curb plate, output utmost point pedestal mounting is in the installation department, and the installation department can restrict output utmost point base along X axle direction, Y axle direction and Z axle direction remove, through set up the installation department on the curb plate, and make output utmost point base and installation department link to each other, compare output utmost point pedestal mounting on the end plate with among the prior art, both can effectively shorten battery module's length, can reduce when colliding again, because the striking, extrude the short circuit risk that positive negative pole and positive negative pole on the output utmost point base caused.

Description

Battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery module.

Background

In the current battery module, positive and negative copper bars are generally fixedly connected by bolts, the fixed base is called an output electrode base, and the output electrode base can provide insulation protection for the positive and negative copper bars. The output pole base of most square battery modules on the market at present is fixed on the end plate of module, and the battery module passes through the end plate to be fixed on the crossbeam of box.

The output pole base is fixed on the end plate, so that the length of the battery module is increased, the structure is not suitable for a box body with a short size in the length direction, and when the box body is impacted by the side face, the box body can accommodate and extrude the positive and negative pole copper plates to cause short circuit. In addition, for the battery module having a length exceeding 1m, only the end plates serve as fixing members between the battery module and the case, and the strength is insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery module which can be suitable for a box body with a small space, effectively improves the connection strength of the battery module and reduces the risk of short circuit of the battery module.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a battery module comprises a side plate and an output electrode base,

the side plate is provided with an installation part, the output pole base is installed on the installation part, and the installation part can limit the output pole base to move along the X-axis direction, the Y-axis direction and the Z-axis direction.

Optionally, be equipped with the draw-in groove on the installation department, be equipped with the buckle on the output pole base, the buckle with the draw-in groove joint can restrict the output pole base is followed the X axle direction removes.

Optionally, a step structure is arranged on the mounting portion, and the step structure is abutted to the output electrode base.

Optionally, the mounting portion includes two side walls, the output pole base is mounted between the two side walls, and the two side walls can limit the output pole base to move along the Y axis direction.

Optionally, the lower part of installation department one side is equipped with the spacing groove, be equipped with spacing portion on the output pole base, spacing portion install in the spacing groove, the spacing groove can restrict the output pole base is followed the Z axle direction removes.

Optionally, a first connection hole is formed in the top of the output pole base, and the first connection hole is connected with the output pole protection cover.

Optionally, a pressure relief hole is formed in the side plate.

Optionally, a module positioning structure is arranged on the side plate and connected with the box body.

Optionally, a second connecting hole is formed in the side plate, and the second connecting hole is connected with the bottom plate.

Optionally, the side plates are integrally formed by extrusion.

Optionally, a third connecting hole is formed in the side plate, and the third connecting hole is connected with the cover plate.

The utility model has the beneficial effects that:

through setting up the installation department on the curb plate to make output utmost point base and installation department link to each other, compare output utmost point pedestal mounting on the end plate with among the prior art, both can effectively shorten battery module's length, when can reduce the bump again, because striking, the positive negative copper bar on the extrusion output utmost point base and the short circuit risk that causes.

The installation part is arranged to limit the output pole base to move along the X-axis direction, the Y-axis direction and the Z-axis direction, so that the side plate and the output pole base can be guaranteed to be relatively static, damage to positive and negative copper bars caused by the fact that the moving position of the output pole base drives the positive and negative copper bars to move is avoided, and the working reliability of the output pole base is improved.

Through set up module location structure on the curb plate for the curb plate also links to each other with the box, has improved the joint strength of battery module, and then has reduced the risk that battery module and box break away from.

Drawings

FIG. 1 is an enlarged view of a portion of a side plate and an output pole base provided in the present invention;

fig. 2 is an assembly view of the side plate and the output pole base provided by the present invention.

In the figure:

100. a side plate; 110. an installation part; 111. a card slot; 112. a step structure; 113. a side wall; 114. a limiting groove; 120. a pressure relief vent; 130. a module positioning structure; 140. a second connection hole; 150. a third connecting hole; 200. an output pole base; 210. buckling; 220. a limiting part; 230. a first connection hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Specifically, as shown in fig. 1, the battery module includes a side plate 100 and an output pole base 200, wherein an installation portion 110 is disposed on the side plate 100, the output pole base 200 is installed on the installation portion 110, the output pole base 200 is used for connecting positive and negative copper bars, and after the installation portion 110 is assembled with the output pole base 200, the output pole base 200 can be fixed by the installation portion 110, so that the output pole base 200 is prevented from moving along the X-axis direction, the Y-axis direction and the Z-axis direction.

By arranging the output electrode base 200 on the side plate 100 of the battery module, compared with the arrangement on the end plate of the battery module in the prior art, on one hand, the length of the battery module can be effectively shortened, and the battery module is beneficial to being used for a battery pack with a small space; on the other hand, when the battery module receives the collision extrusion, can reduce positive negative pole copper bar and receive extruded risk, and then reduce the risk of battery module short circuit. The installation part 110 arranged on the side plate 100 limits the output electrode base 200 to move along the X-axis direction, the Y-axis direction and the Z-axis direction, so that the side plate 100 and the output electrode base 200 can be ensured to be relatively static, the damage of positive and negative copper bars caused by the displacement of the positive and negative copper bars driven by the moving position of the output electrode base 200 is avoided, and the working reliability of the output electrode base 200 is improved.

Further, with continued reference to fig. 1, a slot 111 may be disposed on the mounting portion 110, and correspondingly, a buckle 210 may be disposed on the output pole base 200, and the output pole base 200 may be fixed on the mounting portion 110 by the buckle 210 and the slot 111, and in one embodiment, the slot 111 on the mounting portion 110 may be disposed on one side of the mounting portion 110. In other embodiments, the locking grooves 111 may be disposed on both sides of the mounting portion 110 to improve the connection strength between the side plate 100 and the output pole base 200. Further, the mounting portion 110 is provided with the engaging groove 111, so that the weight of the mounting portion 110 can be reduced. In the present embodiment, the output pole mount 200 is mounted to the mounting portion 110 of the side plate 100 in the X-axis direction. Therefore, the engagement between the engaging groove 111 of the mounting portion 110 and the engaging hook 210 of the output pole base 200 can restrict the movement of the output pole base 200 in the X-axis direction.

Further, when the card slot 111 is small and the card slot 111 is engaged with the buckle 210 on the output pole base 200, and the buckle 210 cannot move in the card slot 111, the card slot 111 can limit the output pole base 200 to move along the X-axis direction. When draw-in groove 111 is great, behind draw-in groove 111 and the buckle 210 joint on the output pole base 200, buckle 210 can move in draw-in groove 111 when, in order to improve the fixed effect to output pole base 200, can set up stair structure 112 on installation department 110, stair structure 112 and the lateral wall butt of output pole base 200, when output pole base 200 receives the effort along the X axle direction, stair structure 112 can block the removal of output pole base 200, stair structure 112 and draw-in groove 111 combined action, when realizing that installation department 110 subtracts the weight, can avoid output pole base 200 to remove along the X axle direction, improve the reliability of output pole base 200 work.

Further, the mount 110 includes two side walls 113, and the output pole mount 200 is mounted between the two side walls 113, and the two side walls 113 have an effect of restricting the output pole mount 200 from moving in the Y-axis direction. In one embodiment, the card slot 111 may be disposed on the sidewall 113.

Preferably, a limiting groove 114 may be formed at the bottom of the mounting portion 110, and accordingly, a limiting portion 220 may be formed on the output electrode base 200, the limiting portion 220 may be mounted in the limiting groove 114, and the output electrode base 200 may be limited from moving in the Z-axis direction by the limiting groove 114.

Optionally, with continued reference to fig. 1, the limiting portion 220 may be disposed below the buckle 210 and protrude from the buckle 210 along the Y-axis direction, the limiting groove 220 is an open groove, and when the output pole base 200 is subjected to a pulling force along the Z-axis direction, a groove wall at the opening of the limiting groove 114 can abut against a portion of the limiting portion 220 protruding from the buckle 210, so as to limit the output pole base 200 to move along the Y-axis direction. When the output pole base 200 is pressed along the Z-axis direction, the bottom of the limiting groove 114 can block the movement of the output pole base 200, and the output pole base 200 is prevented from moving along the Z-axis.

Optionally, a first connection hole 230 may be disposed at the top of the output electrode base 200, the first connection hole 230 is used for being connected to the output electrode protection cover, and the output electrode protection cover can perform insulation protection on the positive and negative electrode copper bars, so as to reduce the risk of short circuit between the positive and negative electrode copper bars. In one embodiment, the output pole protective cover can be connected to the output pole base 200 by a snap-fit connection. In other embodiments, the output pole protective cover can be bolted to the output pole base 200.

Further, the output electrode base 200 may be made of an insulating material, such as an organic polymer material, which has both insulating properties and good mechanical properties, and can meet the requirements of the output electrode base 200 on hardness and strength, and the organic polymer material is wear-resistant, which is beneficial to improving the service life of the output electrode base 200.

When the storage battery pack or the single storage battery releases heat and the storage batteries adjacent to or at other parts in the storage battery system are triggered to release heat, so that the self-temperature rise rate of the batteries is rapidly changed to cause overheating of the battery pack, the explosion-proof valve of the battery pack can be triggered, and explosion caused by increase of air pressure in the battery pack is avoided. Therefore, as shown in fig. 2, a pressure relief hole 120 may be provided in the side plate 100, and when the explosion-proof valve is opened, gas in the battery module may be discharged through the pressure relief hole 120, thereby reducing the risk of explosion of the battery module and reducing thermal runaway loss of the battery module.

Alternatively, in one embodiment, a plurality of pressure relief holes 120 may be provided, and a plurality of pressure relief holes 120 may be provided at intervals along the length direction of the side plate 100. Set up a plurality of pressure release holes 120 and be favorable to battery module gas can discharge rapidly when taking place the thermal runaway, and then effectively reduce the risk of battery module explosion, improve battery module's security performance, reduce battery module's thermal runaway loss.

Further, with continued reference to fig. 2, a module positioning structure 130 may be disposed on the side plate 100, so that the battery module is connected to the case through the module positioning structure 130, and compared with the prior art in which an end plate is connected to the case, on one hand, a connection structure between the battery module and the case is increased, and further, the connection strength between the battery module and the case is improved; on the other hand, increased the location structure between battery module and the box, the location of the battery module of being convenient for is favorable to improving the installation effectiveness of battery module.

Alternatively, the module positioning structure 130 may include a module fixing hole, and the battery module may be bolted to the case through the module fixing hole, specifically, the bolt penetrates through the module fixing hole and the connection hole on the case at the same time. Can set up a module fixed orifices on a module location structure 130, also can set up a plurality of module fixed orifices, set up a plurality of module fixed orifices on a module location structure 130, be favorable to improving the joint strength between battery module and the box, nevertheless, set up a plurality of module fixed orifices and can the increase cost, reduce the assembly efficiency of battery module, consequently, set up according to actual need can.

Preferably, module location structure 130 can set up a plurality ofly, and a plurality of module location structures 130 can set up along curb plate 100's length direction interval, sets up a plurality of module location structures 130 and can improve the joint strength between battery module and the box, effectively reduces the risk that battery module breaks away from the box, guarantees the reliability of battery module work. In the present embodiment, two module positioning structures 130 are disposed on each side plate 100.

Optionally, the module positioning structure 130 may be a rectangular structure, a triangular structure, a trapezoidal structure, or the like, and may be set according to the size of the box and the actual requirement, and the module positioning structure 130 on the same side panel 100 may have the same shape or different shapes, so as to be adapted to the installation space of the narrow box.

Further, a second coupling hole 140 may be formed in the side plate 100, and the side plate 100 is coupled to the bottom plate of the battery module through the second coupling hole 140. In one embodiment, the side plates 100 may be coupled to the bottom plate of the battery module by means of bolts. In other embodiments, the side plate 100 may be connected to the bottom plate of the battery module by riveting, the use of nuts can be reduced by riveting, the cost is reduced, and the occupied space of riveting is small, which is beneficial for a battery pack with a small space.

Further, a third connection hole 150 may be formed in the side plate 100, and the side plate 100 is connected to the cover plate of the battery module through the third connection hole 150. In one embodiment, the side plates 100 may be coupled to the cover plate of the battery module by means of bolts. In other embodiments, the side plate 100 may be connected to the cover plate of the battery module by riveting, the use of nuts can be reduced by riveting, the cost is reduced, and the occupied space of riveting is small, which is beneficial for a battery pack with a small space.

Preferably, the side plate 100 may be integrally formed by extrusion, and this processing method is simple, thereby facilitating cost reduction, and the processing efficiency is high, thereby facilitating mass production.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery module including a side plate (100) and an output electrode base (200),

be equipped with installation department (110) on curb plate (100), output pole base (200) install in installation department (110), just installation department (110) can restrict output pole base (200) move along X axle direction, Y axle direction and Z axle direction.

2. The battery module according to claim 1, wherein a clamping groove (111) is formed in the mounting portion (110), a buckle (210) is formed in the output electrode base (200), and the buckle (210) is clamped with the clamping groove (111) and can limit the output electrode base (200) to move in the X-axis direction.

3. The battery module according to claim 2, wherein a step structure (112) is provided on the mounting portion (110), and the step structure (112) abuts against the output electrode base (200).

4. The battery module according to claim 1, wherein the mounting portion (110) includes two side walls (113), the output pole base (200) is mounted between the two side walls (113), and the two side walls (113) can restrict the output pole base (200) from moving in the Y-axis direction.

5. The battery module according to claim 1, wherein a limiting groove (114) is formed in a lower portion of one side of the mounting portion (110), a limiting portion (220) is formed on the output electrode base (200), the limiting portion (220) is mounted in the limiting groove (114), and the limiting groove (114) can limit the output electrode base (200) to move in the Z-axis direction.

6. The battery module according to any one of claims 1 to 5, wherein the top of the output pole base (200) is provided with a first connection hole (230), and the first connection hole (230) is connected with the output pole protection cover.

7. The battery module according to any one of claims 1 to 5, wherein the side plate (100) is provided with a pressure relief hole (120).

8. The battery module according to any one of claims 1 to 5, wherein the side plates (100) are provided with module positioning structures (130), and the module positioning structures (130) are connected with a box body.

9. The battery module according to any one of claims 1 to 5, wherein the side plate (100) is provided with a second connecting hole (140), and the second connecting hole (140) is connected with the bottom plate.

10. The battery module according to any one of claims 1 to 5, wherein the side plates (100) are integrally formed by extrusion.

11. The battery module according to any one of claims 1 to 5, wherein the side plate (100) is provided with a third connecting hole (150), and the third connecting hole (150) is connected with the cover plate.