CN220527108U - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN220527108U CN220527108U CN202322189370.1U CN202322189370U CN220527108U CN 220527108 U CN220527108 U CN 220527108U CN 202322189370 U CN202322189370 U CN 202322189370U CN 220527108 U CN220527108 U CN 220527108U
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- China
- Prior art keywords
- battery module
- end plate
- side plate
- battery
- plate
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery module and a battery pack, wherein a protruding part and a non-protruding part are arranged on one side surface of an end plate, which faces a side plate, the protruding part and the non-protruding part are arranged along the height direction of the battery module, and a containing structure formed by the protruding part and the non-protruding part can contain parts in the side plate, so that the protruding part can limit the side plate in the height direction, the shaking space of the side plate in the height direction is reduced, the assembly of the end plate and the side plate is realized, and when the end plate is a middle end plate, the assembly of the middle end plate and the side plate is realized, and the assembly efficiency of the battery module is improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery module and a battery pack.
Background
In order to meet the requirement of energy density, the current battery module is continuously long, and in the related design, a middle end plate is arranged at the middle part of the long module to connect adjacent battery packs, so that the overall structural strength of the long module is improved, side plates are arranged on the side parts of the battery module along the width direction of the battery module, and a frame formed after the middle end plate and the side plates are connected can be used for fixing each battery pack. When the middle end plate and the side plate are assembled, how to limit the side plate so as to improve the assembly efficiency is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
The embodiment of the utility model provides a battery module and a battery pack, which are used for limiting side plates so as to improve assembly efficiency.
In a first aspect, an embodiment of the present utility model provides a battery module, a plurality of batteries, an end plate and a side plate, where the end plate is connected to the side plate, the side of the end plate facing the side plate has a protruding portion and a non-protruding portion, the protruding portion and the non-protruding portion are arranged along a height direction of the battery module, the protruding portion and the non-protruding portion form a receiving structure, a portion of the side plate is disposed in the receiving structure, and the protruding portion limits the side plate in the height direction.
In a second aspect, an embodiment of the present utility model provides a battery pack including: the battery module is provided in the case, and the battery module as described in the first aspect above.
The utility model has the following beneficial effects:
according to the battery module and the battery pack provided by the embodiment of the utility model, the protruding part and the non-protruding part are arranged on the surface of one side of the end plate, which faces the side plate, and the protruding part and the non-protruding part are arranged along the height direction of the battery module, and the containing structure formed by the protruding part and the non-protruding part can contain part of the side plate, so that the protruding part can limit the side plate in the height direction, the shaking space of the side plate in the height direction is reduced, the assembly of the end plate and the side plate is realized, the assembly of the middle end plate and the side plate is realized when the end plate is the middle end plate, and the assembly efficiency of the battery module is improved.
Drawings
Fig. 1 is a schematic structural view of a battery module according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken along line n1-n2 of FIG. 1;
FIG. 3 is a schematic view of a partial construction of a middle end plate and side plates provided in an embodiment of the present utility model;
fig. 4 is a schematic view showing a partial structure of a battery module according to an embodiment of the present utility model;
fig. 5 is a schematic structural view of a connection wall according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a battery pack according to an embodiment of the present utility model.
Reference numerals:
10-battery frame, 11-end plate, 11 a-outer end plate, 11 b-middle end plate, 12-side plate, 13-lifting hole, 20-battery, 20 a-battery pack, 30-fastener, 110-box, 120-battery module, 130-battery management system, b 0-top surface of middle end plate, s 1-protruding portion, s 2-non-protruding portion, m 0-accommodation structure, m 1-retaining wall, m 2-outer surface, m 3-groove, m 4-first inner wall, m 5-concave structure.
Detailed Description
A specific embodiment of a battery module and a battery pack according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present utility model, and 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 be within the scope of the utility model.
An embodiment of the present utility model provides a battery module, as shown in fig. 1, which may include: the end plate 11, the side plate 12 and the plurality of batteries 20, the end plate 11 and the side plate 12 may form the battery frame 10, the battery frame 10 may fix each battery 20, and the end plate 11 and the side plate 12 may be fixed by welding, clamping or bonding, so as to improve the stability of the battery frame 10.
As shown in fig. 2, the side surface of the end plate 11 facing the side plate 12 (the right side surface of the end plate 11 as shown in fig. 2) has a protruding portion s1 and a non-protruding portion s2, and the protruding portion s1 and the non-protruding portion s2 are aligned in the height direction (z direction as shown in fig. 2) of the battery module such that the side surface of the end plate 11 facing the side plate 12 is stepped; when the protruding portion s1 and the non-protruding portion s2 form a receiving structure m0, the protruding portion s1 forms a retaining wall m1 of the receiving structure m0 towards one side surface of the non-protruding portion s2, if a part of the side plate 12 is arranged in the receiving structure m0, orthographic projections of the protruding portion s1 and the side plate 12 on the bottom surface of the battery module overlap, and the retaining wall m1 can reduce shaking of the side plate 12 along the height direction (the z direction shown in fig. 2), reduce shaking space of the side plate 12 along the height direction, and enable the protruding portion s1 to limit the side plate 12 along the height direction, so that stability of the assembled side plate 12 can be improved when the end plate 11 and the side plate 12 are assembled, and assembly of the middle end plate 11b and the side plate 12 can be realized when the end plate 11 is the middle end plate 11b, and assembly efficiency of the battery module is improved.
In some embodiments, as shown in fig. 2, when a portion of the side plate 12 is disposed in the accommodating structure m0, the side plate 12 is connected with the non-protruding portion s2 in the accommodating structure m0, and the connection manner may include welding or bonding, so that when the protruding portion s1 plays a limiting role on the side plate 12, the connection of the side plate 12 with the non-protruding portion s2 is more convenient, thereby improving the assembly efficiency of the battery module and further improving the connection reliability of the side plate 12 and the end plate 11.
In some embodiments, as shown in fig. 1, the end plate 11 may include: two outer end plates 11a and an intermediate end plate 11b, the two outer end plates 11a being provided at both ends of the battery module along a length direction (x-direction as shown in fig. 1) of the battery module, such as left and right ends of the battery module as shown in fig. 1; the entire battery 20 may be divided into at least two battery packs 20a, the intermediate end plate 11b is provided between the adjacent two battery packs 20a, and the number of the intermediate end plates 11b may be set to be the number of the battery packs 20a set minus one, so that the intermediate end plates 11b are provided between any adjacent two battery packs 20a, with the respective battery packs 20a being spaced apart by the intermediate end plates 11 b. Each of the outer end plate 11a and the side plate 12 may be surrounded to form a receiving space, and each of the middle end plate 11b and the battery 20 may be disposed in the receiving space. The outer end plate 11a may have a protrusion s1 on a side surface facing the side plate 12, or the middle end plate 11b may have a protrusion s1 on a side surface facing the side plate 12, or the outer end plate 11a may have a protrusion s1 on both a side surface facing the side plate 12 and a side surface facing the side plate 12 of the middle end plate 11 b.
The description below uses the middle end plate 11b as an example, but this does not indicate that the outer end plate 11a is not applicable to the arrangement described below, and in practice, both the outer end plate 11a and the middle end plate 11b may be applicable to the arrangement described below.
In some embodiments, as shown in fig. 1, the side plate 12 may be connected to the two outer end plates 11a and the middle end plate 11b, respectively, in which case the side plate 12 may extend from one of the battery packs 20a to the side of the side plate 12, through the non-protruding portion s2 of the middle end plate 11b, to the side of the other battery pack 20a to the side of the side plate 12; that is, of the two end portions of the side plate 12 disposed along the length direction (x-direction as shown in fig. 1) of the battery module, one end portion (left end of the side plate 12 as shown in fig. 1) is connected to one of the outer end plates 11a (left outer end plate 11a as shown in fig. 1), the other end portion (right end of the side plate 12 as shown in fig. 1) is connected to the other outer end plate 11a (right outer end plate 11a as shown in fig. 1), and the middle position of the side plate 12 passes through the non-protruding portion s2 of the middle end plate 11b, so that an integrated side plate is formed, and when the number of the battery cells 20 is large, the provision of the integrated side plate can not only simplify the structure of the battery module, simplify the assembly process of the battery module, but also improve the stability of the battery frame 10 to the battery fixation.
As shown in fig. 3, the side plate 12 may have a relief portion (as shown in a broken line frame in fig. 3) that can relieve the protruding portion s1, avoiding affecting the assembly of the middle end plate 11b and the side plate 12. The setting form of the avoidance portion may be designed according to the setting form of the protrusion portion s1, for example, the avoidance portion may be a notch disposed in the upper surface of the side plate 12 (i.e., the surface of the side plate 12 facing the top of the battery module), and the size and shape of the notch are substantially the same as those of the protrusion portion s1, so that the side plate 12 may be clamped into the accommodating structure formed by the protrusion portion s1 and the non-protrusion portion s2 during assembly, thereby not only realizing the assembly of the middle end plate 11b and the side plate 12, but also realizing the limitation of the side plate 12 in the z direction.
Further, as shown in fig. 2, after the middle end plate 11b and the side plate 12 are assembled, a side surface of the side plate 12 facing away from the middle end plate 11b (i.e., the right side surface of the side plate 12 shown in fig. 2) may be disposed flush with the outer surface m2 of the protrusion s1, so that the side flatness of the battery module may be ensured, and the battery module may be conveniently placed in the case. As shown in fig. 1 and 2, the height direction of the battery module is the z direction, the length direction of the battery module is the x direction, and the width direction of the battery module is the y direction, and if a plane formed by the z direction and the y direction is referred to as a reference plane, the outer surface m2 of the protrusion s1 is parallel to the reference plane.
In some embodiments, as shown in fig. 2, the top surface b0 of the middle end plate 11b is connected with the outer surface m2 of the protrusion s1, and the top surface b0 of the middle end plate 11b is provided with a groove m3, and the groove m3 may be used to receive a fastener 30, and the fastener 30 may enable the battery module to be fixed to the case when the battery module is disposed in the case.
Moreover, as shown in fig. 2, the protruding portion s1 may be provided with a lifting hole 13, and the lifting hole 13 penetrates through the protruding portion s1 along a direction perpendicular to the outer surface m2 (i.e., the y direction shown in fig. 2) and is communicated with the groove m3, so that not only can lifting of the battery module be facilitated, but also the battery can be prevented from being scratched during lifting, and meanwhile, the manufacturing difficulty of the lifting hole 13 can be reduced.
Further, as shown in fig. 4, the first inner wall m4 of the groove m3, which is close to the protruding portion s1, may be provided with a concave structure m5, and the fastener may be avoided through the concave structure m5, so that interference to the installation of the fastener is avoided, the assembly easiness of the fastener is improved, and the assembly efficiency is improved. Wherein, in setting the shape of the concave structure m5, the setting may be performed according to actual needs, for example, but not limited to, setting the concave structure m5 to: as shown in fig. 5, a distance d1 between the middle position of the concave structure m5 (i.e., the middle position of the first inner wall m 4) and the protruding portion is smaller than a distance d2 between the edge position of the concave structure m5 and the protruding portion; wherein the arrangement direction of the intermediate position and the edge position is parallel to the length direction of the side plate (i.e., x direction shown in fig. 5). If the structure of the outer surface m2 of the connecting protruding part and the first inner wall m4 is called as a connecting retaining wall, the arrangement of the concave structure m5 enables the connecting retaining wall to be thin in the middle and thick on two sides, when the tail end of the hoisting device is in a hook shape, the tail end of the hoisting device can be prevented from avoiding fasteners, the tail end of the hoisting device can be well limited at the middle position of the connecting retaining wall, and the tail end of the hoisting device is prevented from sliding during hoisting, so that the hoisting effect is improved.
Based on the same inventive concept, an embodiment of the present utility model provides a battery pack, as shown in fig. 6, including: the case 110, and the battery module 120 as described above, the battery module 120 being provided in the case 110.
In some embodiments, the end plates in the battery module 120 may be fixed to the case 110, or the side plates in the battery module 120 may be fixed to the case 110, thereby increasing the stability of the fixation of the battery module 120 within the case 110.
In addition, the battery pack may include other structures besides the above-described structure, such as, but not limited to, a battery management system (such as the structure indicated by 130 in fig. 6), and may be specifically configured according to actual needs, which is not limited herein.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A battery module, comprising: the battery module comprises a plurality of batteries, end plates and side plates, wherein the end plates are connected with the side plates, protruding parts and non-protruding parts are arranged on one sides of the end plates towards the side plates, the protruding parts and the non-protruding parts are arranged along the height direction of the battery module, the protruding parts and the non-protruding parts form a containing structure, parts in the side plates are arranged in the containing structure, and the protruding parts limit the side plates in the height direction.
2. The battery module of claim 1, wherein the end plate comprises: the two outer end plates are respectively arranged at two ends of the battery module along the length direction of the battery module; each outer end plate and each side plate are surrounded to form a containing space, and each middle end plate and each battery are arranged in the containing space; the plurality of cells are divided into at least two cell groups, and the middle end plate is positioned between two adjacent cell groups;
the side of the middle end plate facing the side plate is provided with the protruding part.
3. The battery module according to claim 2, wherein the side plates are connected to the two outer end plates and the middle end plate, respectively;
the side plates extend from the side of one of the battery packs facing the side plate, through the non-protruding portion of the intermediate end plate, to the side of the other battery pack facing the side plate.
4. The battery module according to claim 3, wherein the side plate has a relief portion that is relieved from the protruding portion.
5. The battery module according to claim 4, wherein a side surface of the side plate facing away from the end plate is flush with an outer surface of the protruding portion, the outer surface being parallel to a plane formed by the height direction and the length direction.
6. The battery module according to claim 1, wherein the side plate is connected to the non-protruding portion in the receiving structure in which it is located.
7. The battery module according to any one of claims 1 to 6, wherein the top surface of the end plate is provided with a groove that accommodates a fastener; wherein the top surface is connected with the outer surface of the protruding part, and the outer surface is parallel to a plane formed by the height direction and the length direction of the battery module;
the protruding portion is provided with a lifting hole, the lifting hole penetrates through the protruding portion along the direction perpendicular to the outer surface, and the lifting hole is communicated with the groove.
8. The battery module of claim 7, wherein the recess has a recessed structure adjacent the first inner wall of the protrusion for receiving the fastener.
9. The battery module according to claim 8, wherein a distance between an intermediate position of the concave structure and the protruding portion is smaller than a distance between an edge position of the concave structure and the protruding portion; wherein the arrangement direction of the intermediate position and the edge position is parallel to the length direction of the side plate.
10. A battery pack, comprising: a case, and a battery module according to any one of claims 1 to 9, the battery module being provided in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322189370.1U CN220527108U (en) | 2023-08-15 | 2023-08-15 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322189370.1U CN220527108U (en) | 2023-08-15 | 2023-08-15 | Battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220527108U true CN220527108U (en) | 2024-02-23 |
Family
ID=89937256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322189370.1U Active CN220527108U (en) | 2023-08-15 | 2023-08-15 | Battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220527108U (en) |
-
2023
- 2023-08-15 CN CN202322189370.1U patent/CN220527108U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |