CN219498004U - End plate assembly and battery module - Google Patents
End plate assembly and battery module Download PDFInfo
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- CN219498004U CN219498004U CN202320135653.5U CN202320135653U CN219498004U CN 219498004 U CN219498004 U CN 219498004U CN 202320135653 U CN202320135653 U CN 202320135653U CN 219498004 U CN219498004 U CN 219498004U
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- end plate
- assembly
- mounting groove
- buckle
- groove
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- 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
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Abstract
The utility model belongs to the technical field of batteries, and particularly relates to an end plate assembly and a battery module. The end plate assembly comprises an end plate and an output electrode base; the end plate is provided with a mounting groove, and the output electrode base is mounted in the mounting groove; the limiting component is arranged between the output pole base and the mounting groove and can limit the displacement of the output pole base relative to the end plate in the thickness direction and the length direction of the end plate, the output pole base is connected with the end plate through the clamping component, and the output pole base is enabled to have a displacement allowance relative to the end plate in the height direction of the end plate. The utility model has at least the following beneficial effects: the output electrode base and the end plate are reliably limited by arranging the limiting component and the clamping component; the clamping assembly also provides a movable space for the output electrode base to move relative to the end plate in the height direction of the end plate, so that a movable allowance is provided for connection and assembly of the tabs and the output electrode base, assembly difficulty is reduced, and connection is more reliable.
Description
Technical Field
The utility model belongs to the technical field of power batteries, and particularly relates to an end plate assembly and a battery module.
Background
The battery module generally comprises an end plate, a side plate and a plurality of stacked battery cells, wherein the battery cells are located in a space surrounded by the side plate and the end plate, and the battery cells are electrically connected through the tabs. The tabs of the output poles of the battery modules are connected with the tabs of other battery modules through bolts and fastened through nuts so as to realize serial-parallel connection of the battery modules in the battery pack. The existing fastening mode of the tabs is to fix the tabs at the preset positions of the end plates through a mode of adding nuts on the plastic base, the fixing method of the plastic base is various, the base is movably installed, but the problem of unreliable limit exists, or the base is completely fixed, and the connection of the tabs and the base is inconvenient.
Accordingly, there is a need for an end plate assembly and a battery module that solve the above problems.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an end plate assembly and a battery module, which are used for solving the problems of unreliable output electrode base limit and inconvenient connection with a tab in the prior art.
To achieve the above and other related objects, the present utility model provides an end plate assembly comprising:
the end plate is provided with a mounting groove;
the output electrode base is arranged in the mounting groove; the output pole base and the mounting groove are provided with a limiting assembly, the limiting assembly can limit the output pole base to be in displacement in the thickness direction and the length direction of the end plate relative to the end plate, and the output pole base is connected with the end plate through a clamping assembly, and the output pole base is enabled to be provided with a displacement allowance in the height direction of the end plate relative to the end plate.
Optionally, the clamping assembly includes a buckle and a clamping groove, the buckle is arranged on the output pole base, the clamping groove is arranged on the end plate, and the buckle is in clearance clamping fit with the clamping groove.
Optionally, the clamping groove is arranged on the groove wall of the mounting groove, and the buckle extends into the mounting groove and is matched and clamped with the clamping groove.
Optionally, the clamping groove penetrates through the end plate along the thickness direction of the end plate.
Optionally, the number of the buckles is two, and the two buckles are distributed at intervals along the thickness direction of the end plate.
Optionally, the output pole base is provided with a guiding limit column, and the guiding limit column extends into the mounting groove and is in limit fit with the groove wall of the mounting groove to form the limit assembly.
Optionally, the quantity of direction spacing post is two, two direction spacing post is followed the length direction interval distribution of end plate, the buckle is located two between the direction spacing post.
Optionally, the buckle includes the elastic part, the elastic part orientation one side of draw-in groove is equipped with the bellying, the bellying follow the thickness direction of end plate protruding in the lateral wall of direction spacing post, and with draw-in groove cooperation joint.
The end part of one end of the guide limiting column extending into the mounting groove is provided with a guide surface, and in the height direction of the end plate, the end part of the guide limiting column is flush with the end part of the buckle or protrudes out of the end part of the buckle.
To achieve the above and other related objects, the present application also provides a battery module including the end plate assembly as described above.
As described above, the end plate assembly and the battery module of the utility model have at least the following beneficial effects: the output electrode base and the end plate are limited by the movement of the output electrode base in the thickness direction and the length direction of the end plate through the limiting component, and are connected through the clamping component to limit the output electrode base to be separated from the end plate, so that the limiting and connecting are reliable; based on this, the joint subassembly still makes have relative displacement clearance in the direction of height of end plate between output utmost point base and the end plate to for the external banket of output utmost point base provides the assembly activity surplus, reduces the assembly degree of difficulty, makes the connection of output utmost point base and banket more reliable.
Drawings
Fig. 1 is a schematic view illustrating a structure of a battery module according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
fig. 3 is an exploded view of the battery module of fig. 1;
FIG. 4 is a schematic view of the end plate assembly of FIG. 1;
FIG. 5 is an exploded view of the endplate assembly of FIG. 4;
FIG. 6 is a front view of the output pole mount of FIG. 1;
fig. 7 is a side view of the output pole mount of fig. 1.
Description of the part reference numerals
100-cell groups; 101-an electric core; 102-an output electrode; 200-bara; 300-end plates; 301-mounting slots; 302-a clamping groove; 400-output pole base; 401-guiding limit posts; 401a-X limiting surfaces; 401b-Y direction limiting surface; 401 c-a guide surface; 402-snap; 4021-an elastic portion; 4022-a boss; 500-side plates.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Referring to fig. 1 to 3, in an alternative embodiment, the present application provides a battery module including an end plate assembly. The battery module may include the tabs 200 and/or the side plates 500 and/or the battery cell stack 100 in addition to the end plate assembly.
Optionally, the end plate assembly encloses with the side plates 500 to form a space for receiving the cell stack 100. The cell stack 100 has an output electrode 102, one end of the terminal tab 200 is electrically connected to the output electrode 102 of the cell stack 100, and the other end of the tab 200 is overlapped on the end plate assembly. The battery cell group 100 includes a plurality of battery cells 101 stacked and arranged, and two adjacent battery cells 101 can be electrically connected.
Alternatively, the end plate assemblies are located on one side of the cell group 100 near the output electrode 102, and the number of the end plates 300 may be two, and in the stacking direction of the plurality of cells 101 in the cell group 100, the two end plate assemblies may be symmetrically distributed on two opposite sides of the cell group 100.
Referring to fig. 1-3, in an alternative embodiment, the end plate assembly provided herein includes an end plate 300 and an output pole mount 400. The end plate 300 is provided with the mounting groove 301, the output pole base 400 is mounted in the mounting groove 301, a limiting component is arranged between the output pole base 400 and the mounting groove 301, the limiting component can limit the displacement of the output pole base 400 relative to the end plate 300 in the thickness direction and the length direction of the end plate 300, the output pole base 400 is connected with the end plate 300 through a clamping component, the output pole base 400 has a displacement allowance relative to the end plate 300 in the height direction of the end plate 300, that is, the clamping component can enable the output pole base 400 to move relative to the end plate 300 within a preset range, and therefore the clamping component can not only limit the output pole base 400 to be separated from the end plate 300, but also provide a moving space for the movement of the output pole base 400 relative to the end plate 300 in the height direction of the end plate 300.
In the present application, the thickness direction of the end plate 300, the length direction of the side plate 500, the stacking direction of the battery cells 101, and the thickness direction of the battery cells 101 may be the same direction, i.e., the Y direction in the drawing; the length direction of the end plate 300, the thickness direction of the side plate 500, and the length direction of the cell 101 may be the same direction, i.e., the X direction in the drawing; the height direction of the end plate 300, the height direction of the side plate 500, and the height direction of the battery cell 101 may be the same direction, i.e., the Z direction in the drawing.
Alternatively, the mounting groove 301 may be disposed at the top end of the end plate 300, and the top end of the end plate 300 may be partially hollowed to form the mounting groove 301, and the output electrode base 400 is mounted in the mounting groove 301 in a moving manner along the Z direction and is cooperatively connected with the end plate 300.
Alternatively, the output pole base 400 may be a plastic member, and the tab 200 is lapped on the output pole base 400 and is locked and connected with the output pole base 400 by a locking member. Further, in the Z direction, the tabs 200 are at least partially stacked on the output pole base 400, and the locking member passes through the tabs 200 in the Z direction and connects the tabs 200 to the output pole base 400; specifically, the tab 200 is provided with a connection hole, the output electrode base 400 is provided with a threaded hole or a nut corresponding to the connection hole, and the locking member comprises a bolt, and the bolt is connected with the threaded hole or the nut after passing through the connection hole, so that the tab 200 is connected with the output electrode base 400. When needs electricity connection between two battery module's the end plate subassembly, can be connected through the switching tab between two battery modules, the both ends of switching tab are piled up respectively with two battery module's tab 200 on output pole base 400 to through the retaining member with switching tab, tab 200 and output pole base 400 locking.
In the end plate assembly in the embodiment, the output electrode base 400 and the end plate 300 limit the relative movement of the output electrode base 400 and the end plate 300 in the X direction and the Y direction through the limiting assembly, the output electrode base 400 and the end plate 300 are connected through the clamping assembly, the output electrode base 400 is limited to be separated from the end plate 300 along the Z direction, and the limiting is reliable and stable, and the positioning is accurate; in addition, the clamping assembly can enable the output pole base 400 and the end plate 300 to have a relative displacement gap in the Z direction, so that a space is provided for the movement of the output pole base 400 along the Z direction relative to the end plate 300, the movable allowance of locking of the locking piece can be absorbed, the tolerance is absorbed, the assembly is simple and convenient, and the reliability of locking of the bar 200 is ensured.
Referring to fig. 2 and fig. 4 to fig. 7, in an alternative embodiment, the clamping assembly includes a buckle 402 and a clamping groove 302, the buckle 402 is disposed on the output pole base 400, the clamping groove 302 is disposed on the end plate 300, and the buckle 402 is in clearance clamping fit with the clamping groove 302, that is, a displacement clearance is formed between the buckle 402 and the clamping groove 302 in the Z direction, so that when the buckle 402 is clamped with the clamping groove 302 in the matching manner, a movement allowance is left in the Z direction, so that the assembly difficulty is reduced, the tab 200 can be easily fixed at a predetermined position of the end plate 300, and if the battery cell set 100 heats and expands in the use process, a space is provided for movement of the tab 200, and damage to the tab 200 is reduced.
Alternatively, the clamping groove 302 may be disposed in the mounting groove 301, or may be formed on a side wall of the end plate 300, corresponding to the buckle 402. Wherein, draw-in groove 302 can run through end plate 300 along the thickness direction of end plate 300 for when buckle 402 and draw-in groove 302 cooperation joint, buckle 402 exposes from draw-in groove 302, just can exert the effort to buckle 402 in the outside of end plate 300, and the operation is simpler convenient when dismantling output utmost point base 400, improves dismouting efficiency.
Referring to fig. 4-7, in an alternative embodiment, the clip groove 302 is disposed on a groove wall of the mounting groove 301, and the clip 402 extends into the mounting groove 301 and is engaged with the clip groove 302.
Alternatively, the card slot 302 penetrates the end plate 300 in the thickness direction of the end plate 300. Further, the number of the buckles 402 may be two, the two buckles 402 are distributed at intervals along the thickness direction of the end plate 300, the clamping grooves 302 are in one-to-one correspondence with the buckles 402, that is, two clamping grooves 302 are arranged on the groove wall of the mounting groove 301, the two clamping grooves 302 are distributed on the groove wall of the opposite side of the mounting groove 301, and the connection is more stable and reliable.
Optionally, the buckle 402 includes an elastic portion 4021, a protruding portion 4022 is disposed on a side of the elastic portion 4021 facing the card slot 302, and the protruding portion 4022 extends into the card slot 302 to be engaged with the card slot 302. The elastic portion 4021 has a certain elastic deformation capability, so that the buckle 402 can be bent and deformed by being pressed into the mounting groove 301, and when the buckle reaches the clamping groove 302, the protruding portion 4022 can be ejected out to be matched and clamped with the clamping groove 302.
In the end plate assembly in the embodiment, the clamping groove 302 is arranged on the groove wall of the mounting groove 301, so that the structure is simple, and the processing is convenient; in addition, the clamping groove 302 penetrates through the side wall of the end plate 300 and is communicated with the outside of the end plate 300, and the through groove structure is adopted, so that the processing difficulty can be further reduced, the production cost is reduced, the clamping buckle 402 can be extruded outside the end plate 300, the clamping buckle 402 and the clamping groove 302 are disassembled and assembled, the disassembly and assembly of the output electrode base 400 and the end plate 300 are simple and convenient, and the assembly efficiency is improved.
Referring to fig. 2, 5 to 7, in an alternative embodiment, the output pole base 400 is provided with a guiding and limiting post 401, and the guiding and limiting post 401 extends into the mounting groove 301 and is in limiting fit with the groove wall of the mounting groove 301 to form a limiting assembly.
Alternatively, the number of the guiding and limiting columns 401 may be two, the two guiding and limiting columns 401 are distributed at intervals along the length direction of the end plate 300, and the buckle 402 is located between the two guiding and limiting columns 401.
Optionally, the protrusion 4022 on the clip 402 protrudes from the side wall of the guiding and limiting post 401 along the thickness direction of the end plate 300, so as to ensure that the protrusion 4022 can be clamped with the clip groove 302 when reaching the clip groove 302. The guiding and limiting column 401 comprises an X-direction limiting surface 401a and a Y-direction limiting surface 401b, and the protruding part 4022 protrudes from the Y-direction limiting surface 401b upwards in Y; the X-direction limiting surfaces 401a on the two guiding and limiting columns 401 are attached to the groove walls on two opposite sides of the mounting groove 301 to limit the movement of the output electrode base 400 in the X direction relative to the end plate 300; the Y-direction limiting surfaces 401b on the guide limiting posts 401 engage the side walls on opposite sides of the mounting groove 301 to limit movement of the output pole mount 400 in the Y-direction relative to the end plate 300. The guide limit column 401 is matched with the mounting groove 300 for limit, and the limit is stable and reliable.
Optionally, a guide surface 401c is provided at an end of the guide limit post 401 extending into the mounting groove 301, and in the height direction of the end plate 300, the end of the guide limit post 401 is flush with an end of the buckle 402; or, the end part of the guiding limit column 401 protrudes out of the end part of the buckle 402, so that the guiding surface 401c plays a role in assembly guiding, positioning and assembly are accurate, and assembly difficulty is reduced. The guiding and limiting column 401 can limit and guide, so that the assembly reliability is improved, and the structure is simplified.
It will be appreciated that the stop assembly is not limited to a slot wall comprising the guide stop post 401 and the mounting slot 301, i.e., is not limited to the guide stop post 401 mating with the slot wall of the mounting slot 301. In another alternative embodiment, the stop assembly may include a guide stop post 401 disposed on the output pole mount 400 and a stop structure disposed within the mounting slot 301, the guide stop post 401 cooperating with the stop structure to limit movement of the output pole mount 400 in the X and Y directions relative to the end plate 300. Specifically, the limit structure can be a limit groove concavely arranged at the bottom of the mounting groove 301, the guide limit column 401 extends into the limit groove to cooperate with each side wall of the limit groove to limit the movement of the output electrode base 400 in the X direction and the Y direction, the guide limit column 401 can be a square column, the limit groove can be a square groove matched with the square column in shape, and only one guide limit column 401 is required to be arranged to realize the movement limit of the output electrode base 400 in the X direction and the Y direction.
The end plate assembly and the battery module adopt simple structures to realize limit connection between the output electrode base 400 and the end plate 300, and improve the reliability of assembly. Wherein, not only can be stable spacing between the output pole base 400 through spacing subassembly and joint subassembly, but also make output pole base 400 and end plate 300 can leave certain displacement clearance in the Z upwards to can absorb the activity allowance that the retaining member was locked, and absorb the fluctuation that brings because of the tolerance, reduce the assembly degree of difficulty, guaranteed the steady reliability of assembly.
In the description of the present specification, the descriptions of the terms "present embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. An endplate assembly comprising:
the end plate is provided with a mounting groove;
the output electrode base is arranged in the mounting groove; the output pole base and the mounting groove are provided with a limiting assembly, the limiting assembly can limit the output pole base to be in displacement in the thickness direction and the length direction of the end plate relative to the end plate, and the output pole base is connected with the end plate through a clamping assembly, and the output pole base is enabled to be provided with a displacement allowance in the height direction of the end plate relative to the end plate.
2. The endplate assembly of claim 1 wherein: the clamping assembly comprises a buckle and a clamping groove, the buckle is arranged on the output electrode base, the clamping groove is formed in the end plate, and the buckle is matched with the clamping groove in a clearance clamping manner.
3. The endplate assembly of claim 2 wherein: the clamping groove is formed in the groove wall of the mounting groove, and the buckle stretches into the mounting groove and is matched and clamped with the clamping groove.
4. An end plate assembly according to claim 3, wherein: the clamping groove penetrates through the end plate along the thickness direction of the end plate.
5. The endplate assembly of claim 4 wherein: the number of the buckles is two, and the two buckles are distributed at intervals along the thickness direction of the end plate.
6. An endplate assembly according to any of claims 2 to 5, wherein: the output pole base is provided with a guide limit column, and the guide limit column extends into the mounting groove and is in limit fit with the groove wall of the mounting groove to form the limit assembly.
7. The endplate assembly of claim 6 wherein: the number of the guide limit posts is two, the two guide limit posts are distributed at intervals along the length direction of the end plate, and the buckle is positioned between the two guide limit posts.
8. The endplate assembly of claim 6 wherein: the buckle comprises an elastic part, a protruding part is arranged on one side of the elastic part, which faces the clamping groove, and the protruding part protrudes out of the side wall of the guiding limit column along the thickness direction of the end plate and is matched and clamped with the clamping groove.
9. The endplate assembly of claim 6 wherein: the end part of one end of the guide limiting column extending into the mounting groove is provided with a guide surface, and in the height direction of the end plate, the end part of the guide limiting column is flush with the end part of the buckle or protrudes out of the end part of the buckle.
10. A battery module, characterized in that: an end plate assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320135653.5U CN219498004U (en) | 2023-01-20 | 2023-01-20 | End plate assembly and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320135653.5U CN219498004U (en) | 2023-01-20 | 2023-01-20 | End plate assembly and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219498004U true CN219498004U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320135653.5U Active CN219498004U (en) | 2023-01-20 | 2023-01-20 | End plate assembly and battery module |
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| CN (1) | CN219498004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116799417A (en) * | 2023-08-22 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Battery module, energy storage system and electric equipment |
-
2023
- 2023-01-20 CN CN202320135653.5U patent/CN219498004U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116799417A (en) * | 2023-08-22 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Battery module, energy storage system and electric equipment |
| CN116799417B (en) * | 2023-08-22 | 2024-01-23 | 深圳海辰储能控制技术有限公司 | Battery module, energy storage system and electric equipment |
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