CN220895692U

CN220895692U - Battery module curb plate, battery module and vehicle

Info

Publication number: CN220895692U
Application number: CN202322318750.0U
Authority: CN
Inventors: 罗锟; 陈智伟
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-05-03
Anticipated expiration: 2033-08-28

Abstract

The utility model provides a battery module side plate, a battery module and a vehicle, wherein the battery module side plate comprises: the two opposite sides of the base plate are used for being connected with the top plate and the bottom plate of the battery module, the two opposite ends of the base plate are used for being connected with the two opposite end plates of the battery module, and the base plate is provided with a through fixing hole; the mounting plate is connected to the base plate in a bending mode, the mounting plate comprises at least one base mounting part adjacent to the fixing holes, the base plate and the mounting plate are integrally formed, the base mounting part is used for supporting the bottom of the output stage base, and the fixing holes are used for enabling fixing pieces penetrating through the side parts of the output stage base to penetrate through so as to fix the output stage base to the base plate. Through setting up the mounting panel that the structure is simplified to with mounting panel and base plate integrated into one piece, in order to satisfy the requirement to battery module lightweight. Meanwhile, the fixing holes are formed in the base plate, fixing pieces on the side portions of the output stage base can penetrate through the fixing holes, the output stage base is provided in a mounting mode with high reliability, and the mounting stability of the output stage base is improved.

Description

Battery module curb plate, battery module and vehicle

Technical Field

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

Background

In the energy storage industry and electric automobiles, the safety performance of a battery module directly affects the safety of the whole power battery and the whole automobile. At present, a side plate of a battery module is often formed by adopting an aluminum extrusion process, the cross section of the formed side plate is of a Chinese character 'tian' shaped structure, after a groove is further formed in the middle part of the side plate, an output stage base of the battery module is embedded into the mounting groove, and meanwhile, two ends of the output stage base are respectively clamped into the grooves on the Chinese character 'tian' shaped structure of the side plate, so that the mounting and fixing of the output stage base are realized.

However, the above-mentioned side plate structure is comparatively complicated, is difficult to satisfy the lightweight requirement to battery module at present, and adopts the fixed output stage base's of mode of card income position, and is higher to the precision requirement of the recess on mounting groove and the field font structure, and battery module appears the not hard up of output stage base easily at vibrations impact process, influences battery module's security performance, therefore need a lightweight and high curb plate of reliability urgently.

Disclosure of utility model

The embodiment of the utility model provides a battery module side plate, a battery module and a vehicle, which can improve the technical problems of complex structure and poor installation reliability.

In a first aspect, an embodiment of the present utility model provides a battery module side plate, characterized in that,

Comprising the following steps:

The battery module comprises a base plate, wherein two opposite sides of the base plate are used for being connected with a top plate and a bottom plate of the battery module, two opposite ends of the base plate are used for being connected with two opposite end plates of the battery module, and the base plate is provided with a through fixing hole;

The mounting plate is integrally formed with the base plate and is connected with the base plate in a bending manner, and the mounting plate comprises at least one base mounting part adjacent to the fixing hole;

The base mounting part is used for supporting the bottom of the output stage base, and the fixing holes are used for allowing fixing pieces penetrating through the side parts of the output stage base to penetrate through so as to fix the output stage base on the substrate.

In an embodiment, the edge of the substrate is provided with an avoidance groove, the avoidance groove is located at one side of the fixing hole away from the base mounting portion, and the avoidance groove is used for extending a conductive bar of the battery module to be connected with the output stage base.

In one embodiment, the mounting plate is provided with a plurality of first weight-reducing channels.

In one embodiment, the mounting plate comprises two base mounting parts and an outer connecting part positioned between the two base mounting parts, the outer connecting part is connected with the base plate in a bending way, the mounting plate is provided with a mounting hole, and the mounting hole is used for mounting a cross beam for mounting the battery module; at least one base mounting plate with be equipped with between the external connection portion the first subtracts heavy groove.

In one embodiment, the outer connection part is provided with an auxiliary hole for exposing the relative position between the side plate and the cross member to which the battery module is mounted.

In an embodiment, the battery module further comprises a connecting plate, wherein the connecting plate is connected to the edge of the base plate in a bending manner and extends towards the direction away from the mounting plate, and a plurality of connecting holes for mounting the top plate of the battery module are formed in the connecting plate.

In an embodiment, the connecting plate is provided with at least one second weight-reducing groove, the position of at least one second weight-reducing groove corresponds to the corresponding first weight-reducing groove, and the width of at least one second weight-reducing groove is smaller than the width of the corresponding first weight-reducing groove.

In an embodiment, the hole wall of the fixing hole includes two opposite arc walls and two opposite flat walls, and each flat wall is located between and connected to two arc walls.

In a second aspect, an embodiment of the present utility model provides a battery module, including a case and a battery cell, where the case includes the battery module side plate, the top plate, the bottom plate, and two end plates, and the battery module side plate, the top plate, the bottom plate, and the two end plates enclose a battery compartment that accommodates the battery cell.

In an embodiment, the fixing device further comprises a hot-melt fixing piece, wherein the hot-melt fixing piece penetrates through the side part of the output stage base, fills the fixing hole and abuts against the substrate.

In a third aspect, an embodiment of the present utility model provides a vehicle including the above battery module.

The embodiment of the utility model has the beneficial effects that:

In the embodiment of the utility model, the mounting plate with a simplified structure is arranged, and the mounting plate and the base plate are integrally formed, so that the requirement on the light weight of the battery module is met. Meanwhile, the fixing holes are formed in the base plate, fixing pieces on the side portions of the output stage base can penetrate through the fixing holes, the output stage base is provided in a mounting mode with high reliability, the mounting stability of the output stage base is improved, and the technical problems of complex structure and poor mounting reliability are solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the overall structure of a side plate of a battery module according to an embodiment of the present utility model;

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic installation diagram of an output stage base and a side plate of a battery module according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of an output stage chassis according to an embodiment of the present utility model.

Reference numerals:

1. A substrate; 11. a first surface; 12. a second surface; 13. a fixing hole; 131. an arc-shaped wall; 132. a flat wall; 14. an avoidance groove; 15. a lightening hole; 2. a mounting plate; 21. a base mounting portion; 22. an outer connection portion; 221. a mounting hole; 222. an auxiliary hole; 23. a first weight-reducing groove; 3. a connecting plate; 31. a second weight-reducing groove; 32. a connection hole; 4. an output stage mount; 5. a fixing member; 6. a screw hole; 7. and riveting the holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

Example 1

Referring to fig. 1, a battery module side plate according to an embodiment of the present application includes:

The battery module comprises a base plate 1, wherein two opposite sides of the base plate 1 are used for being connected with a top plate and a bottom plate of the battery module, two opposite ends of the base plate 1 are used for being connected with two opposite end plates of the battery module, the base plate 1 is provided with a through fixing hole 13, and four fixing holes 13 are formed;

The mounting plate 2 is integrally formed with the base plate 1, the mounting plate 2 is connected to the base plate 1 in a bending mode, the mounting plate 2 comprises two base mounting parts 21 adjacent to the fixing holes 13, and each two fixing holes 13 correspond to one base mounting part 21.

Wherein the base mounting portion 21 is used for supporting the bottom of the output stage base 4, and the fixing hole 13 is used for passing through the fixing piece 5 passing through the side of the output stage base 4 to fix the output stage base 4 to the substrate 1.

The base plate 1 and the mounting plate 2 are integrally formed by adopting an aluminum extrusion process, and the extrusion die head is replaced to optimize the extrusion side surface of the side plate, so that the mounting plate 2 is formed into a straight section, and the aluminum waste caused by the existing cross section in the shape of a Chinese character 'Tian'. On the basis of the prior art, the weight of the side plate is reduced from 0.748kg to 0.685kg, and the weight of the side plate is reduced by 0.063kg, so that the weight of the side plate is reduced. The fixed orifices 13 can enable the fixed part 5 of the output stage base 4 to pass through and then be fixed in a hot melting mode, one part of the fixed part 5 after hot melting is filled with the surface of the fixed orifice 13, the other part of the fixed part is abutted against the substrate 1 and deviates from the surface of the output stage base 4, and therefore the installation stability and the installation reliability between the substrate 1 and the output stage base 4 are improved. And meanwhile, the fixing holes 13 are milled, so that machining of the mounting groove of the output stage base 4 is avoided, machining cost and machining time are reduced, and meanwhile, the control of mounting precision between the output stage base 4 and the mounting groove is avoided.

Example 2

Referring to fig. 1, a battery module side plate according to an embodiment of the present application includes a base plate 1, a mounting plate 2, and a connection plate 3.

Opposite sides of the base plate 1 are used for bolting with the top plate and the bottom plate of the battery module, and opposite ends of the base plate 1 are used for riveting with opposite end plates of the battery module. The substrate 1 comprises a first surface 11 and a second surface 12 opposite to each other, the first surface 11 and the second surface 12 are connected to opposite sides and opposite ends of the substrate 1, the substrate 1 is provided with four fixing holes 13 penetrating the first surface 11 and the second surface 12, wherein two fixing holes 13 are near one of the opposite ends of the substrate 1, and the other two fixing holes 13 are near the other of the opposite ends of the substrate 1. The base plate 1 is further provided with lightening holes 15 penetrating the first surface 11 and the second surface 12. In another embodiment, further comprising an insulating film cold-pressed on the second surface 12, the lightening holes 15 expose the insulating film.

The mounting plate 2 includes two oppositely disposed base mounting portions 21 and an outer connecting portion 22 located between the two base mounting portions 21. The two base mounting portions 21 correspond to the fixing holes 13 near the opposite ends of the substrate 1, respectively, and are adjacent to the fixing holes 13. The two base mounting portions 21 and the outer connecting portion 22 are both connected to the first surface 11 in a bending manner, and a first weight-reducing groove 23 is provided between the base mounting portion 21 and the outer connecting portion 22.

The base mounting portion 21 is for supporting the bottom of the output stage base 4, and the fixing hole 13 is for passing the fixing member 5 passing through the side portion of the output stage base 4 to fix the output stage base 4 to the substrate 1. The edge of the substrate 1 is provided with a avoiding groove 14 penetrating through the first surface 11 and the second surface 12, and the avoiding groove 14 is positioned on one side of the fixing hole 13 away from the base mounting part 21. The avoiding groove 14 is used for extending the conductive bars of the battery module to be connected with the output stage base 4.

The outer connection portion 22 is provided with two mounting holes 221 and an auxiliary hole 222. The mounting holes 221 are used for the beam bolting of the mounted battery module. The auxiliary hole 222 is located at one end of the mounting hole 221 away from the other mounting hole 221, and when the battery module is mounted, the beam for mounting the battery module is located below the mounting plate 2, so that the auxiliary hole 222 is used for exposing the relative position between the side plate and the beam for mounting the battery module, so that the battery module and the beam can be precisely mounted. The auxiliary holes 222 can also provide a fixed position when the battery module is lifted.

The connecting plate 3 is located at one side of the fixing hole 13 facing away from the mounting plate 2, and is connected to the edge of the second surface 12 in a bending manner and extends towards the direction facing away from the mounting plate 2, and the connecting plate 3 is provided with a plurality of connecting holes 32 for the top plate bolting of the battery module. The connecting plate 3 is further provided with a second weight-reducing groove 31 arranged corresponding to the first weight-reducing groove 23, and the width of the first weight-reducing groove 23 is smaller than that of the second weight-reducing groove 31. The border that the connecting plate 3 was kept away from to base plate 1 is equipped with a plurality of spiro union holes 6 that run through, and spiro union hole 6 is used for supplying the bolt of installing battery module bottom plate to pass, so that the bottom plate fixed with curb plate and battery module improves battery module's joint strength. The base plate 1 all is equipped with a plurality of riveting holes 7 along length direction's both sides, and riveting hole 7 is used for supplying battery module's end plate riveting to it is fixed with battery module's end plate to be curb plate, improves battery module's joint strength. In this embodiment, the substrate 1, the mounting plate 2 and the connection plate 3 are integrally formed, and the substrate 1, the mounting plate 2 and the connection plate 3 are formed by an aluminum extrusion process, so that the material use is reduced, the cost is reduced, and the weight of the mounting plate 2 is reduced. Further, the first weight-reduction groove 23 and the second weight-reduction groove 31 are milled to better satisfy the light-weight requirement.

Referring to fig. 2, the hole wall of the fixing hole 13 includes two opposite arc walls 131 and two opposite flat walls 132, and each flat wall 132 is located between the two arc walls 131 and connected to the two arc walls 131. After the fixing hole 13 is used for the fixing piece 5 at the side part of the output stage base 4 to pass through, the hot-melt fixing piece extends out of one end of the second surface 12 so as to fill the fixing hole 13 and cover the second surface 12, and after being solidified, the fixing piece is abutted against the second surface 12, so that the effect of stably mounting the output stage base 4 is realized. The flat wall 132 is perpendicular to the mounting plate 2, so that one end of the fixing member 5 after hot melting is better filled with the fixing hole 13 under the action of gravity. The phenomena of no advance and no tight clamping of the prior output stage base 4 are avoided.

The embodiment of the application also provides a battery module which comprises a box body, an electric core, an output stage base 4 and a fixing piece 5. The box body comprises the side plate, the top plate, the bottom plate and the two end plates of the battery module, and the side plate, the top plate, the bottom plate and the two end plates of the battery module enclose a battery compartment for accommodating the battery cells. The fixing piece 5 comprises a hot-melt fixing piece, one end of the hot-melt fixing piece penetrates through the side part of the output stage base 4 and then extends out, the hot-melt fixing piece is used for penetrating through the fixing hole 13 and extending out of the second surface 12, one end of the hot-melt fixing piece is hot-melt and then fills the fixing hole 13 and covers the second surface 12, and after solidification, the end of the hot-melt fixing piece is abutted to the second surface 12, so that the effect of stable installation of the output stage base 4 is realized.

The embodiment of the application also provides a vehicle, which comprises a vehicle body and the battery module, wherein the battery module is arranged in the vehicle body.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims

1. A battery module side plate, comprising:

the battery module comprises a base plate (1), wherein two opposite sides of the base plate (1) are used for being connected with a top plate and a bottom plate of the battery module, two opposite ends of the base plate (1) are used for being connected with two opposite end plates of the battery module, and the base plate (1) is provided with a through fixing hole (13);

The mounting plate (2) is integrally formed with the base plate (1), the mounting plate (2) is connected to the base plate (1) in a bending manner, and the mounting plate (2) comprises at least one base mounting part (21) adjacent to the fixing hole (13);

Wherein the base mounting part (21) is used for supporting the bottom of the output stage base (4), and the fixing hole (13) is used for allowing a fixing piece (5) penetrating through the side part of the output stage base (4) to penetrate so as to fix the output stage base (4) to the substrate (1).

2. The battery module side plate according to claim 1, wherein an avoidance groove (14) is formed in the edge of the base plate (1), the avoidance groove (14) is located at one side, away from the base mounting portion (21), of the fixing hole (13), and the avoidance groove (14) is used for enabling a conductive bar of the battery module to extend out to be connected with the output stage base (4).

3. The battery module side plate according to claim 1, wherein the mounting plate (2) is provided with a plurality of first weight-reduction grooves (23).

4. A battery module side plate according to claim 3, wherein the mounting plate (2) includes two base mounting portions (21) and an outer connecting portion (22) between the two base mounting portions (21), the outer connecting portion (22) being connected to the base plate (1) in a bent manner, the mounting plate (2) being provided with mounting holes (221), the mounting holes (221) being for mounting a cross member for mounting the battery module; the first weight reduction groove (23) is arranged between at least one base mounting part (21) and the outer connecting part (22).

5. The battery module side plate according to claim 4, wherein the outer connection part (22) is provided with an auxiliary hole (222), and the auxiliary hole (222) is used to expose the relative position between the side plate and a cross member on which the battery module is mounted.

6. The battery module side plate according to claim 4, further comprising a connection plate (3), the connection plate (3) being connected to the edge of the base plate (1) in a bending manner and extending in a direction away from the mounting plate (2), the connection plate (3) being provided with a plurality of connection holes (32) for mounting the top plate of the battery module.

7. The battery module side plate according to claim 6, wherein the connecting plate (3) is provided with at least one second weight-reducing groove (31), the position of at least one second weight-reducing groove (31) corresponds to the corresponding first weight-reducing groove (23), and the width of at least one second weight-reducing groove (31) is smaller than the width of the corresponding first weight-reducing groove (23).

8. The battery module side plate according to claim 1, wherein the hole wall of the fixing hole (13) includes two oppositely disposed arc-shaped walls (131) and two oppositely disposed flat walls (132), each flat wall (132) being located between two arc-shaped walls (131) and connected to two arc-shaped walls (131).

9. A battery module comprising a case and a battery cell, the case comprising the battery module side plate, the top plate, the bottom plate, and two end plates according to any one of claims 1 to 8, the battery module side plate, the top plate, the bottom plate, and two end plates enclosing a battery compartment housing the battery cell.

10. The battery module according to claim 9, further comprising the fixing member (5), the fixing member (5) comprising a hot-melt fixing member penetrating a side portion of the output stage base (4), filling the fixing hole (13) and abutting the substrate (1).

11. A vehicle comprising the battery module according to claim 9 or 10.