CN217158466U - End plate assembly, battery module and battery pack - Google Patents
End plate assembly, battery module and battery pack Download PDFInfo
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- CN217158466U CN217158466U CN202220699532.9U CN202220699532U CN217158466U CN 217158466 U CN217158466 U CN 217158466U CN 202220699532 U CN202220699532 U CN 202220699532U CN 217158466 U CN217158466 U CN 217158466U
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- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 230000014759 maintenance of location Effects 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 210000002421 cell wall Anatomy 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses an end plate subassembly, battery module and battery package, wherein, the end plate subassembly includes the end plate body, output pole base and output pole visor, be provided with first mounting groove on the end plate body, the output pole base sets up in first mounting groove, output pole visor and output pole base are connected, it detains to be provided with first elasticity on the output pole base, the cell wall of first mounting groove is sunken to be provided with first lock groove, chucking is detained at first lock inslot to first elasticity, one of output pole base and output pole visor both is provided with second elasticity and detains, another is provided with second lock groove and direction lug, the direction lug is adjacent to second lock groove, the direction lug is used for detaining the direction with second elasticity and inserts second lock inslot. The guide convex block is arranged, so that the output pole protective cover and the output pole base can be conveniently buckled and connected, and the guide convex block can provide guide for the movement of the second elastic buckle, so that the second elastic buckle can be smoothly inserted into the second buckling groove.
Description
Technical Field
The utility model relates to a battery field especially relates to an end plate subassembly, including this end plate subassembly's battery module and the battery package including this battery module.
Background
With the current social energy crisis becoming more serious, new energy automobiles are getting more and more social attention, especially electric automobiles. The power battery pack is an important component of the electric automobile, and the battery module is a core component of the power battery pack. At present, the fixed dovetail structure of using always of output utmost point base and end plate of most battery module, module welded forming back, this kind of base structure can't be dismantled, be unfavorable for changing the maintenance, and the performance direct influence of battery module influences the performance of power battery package, especially will directly influence the security of power battery package to the protection of the spare part of battery module, if the positive negative pole output of battery module extremely protects not in place, probably the condition of electrode short circuit always takes place in power battery package use, cause the incident (for example, the power battery package catches fire).
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at: provided is an end plate assembly, the output pole of which can be detached and which is convenient to maintain.
The embodiment of the utility model provides a another aim at: provided is a battery module which is convenient to maintain.
The embodiment of the utility model provides a still another aim at: provided is a battery pack having high safety performance.
In order to achieve the purpose, the utility model adopts the following technical proposal:
in a first aspect, an end plate assembly is provided, which includes an end plate body, an output electrode base and an output electrode protection cover, wherein a first mounting groove is formed in the end plate body, the output electrode base is disposed in the first mounting groove, the output electrode protection cover is connected to the output electrode base, a first elastic buckle is disposed on the output electrode base, a first buckling groove is recessed in a groove wall of the first mounting groove, the first elastic buckle is clamped in the first buckling groove, one of the output electrode base and the output electrode protection cover is provided with a second elastic buckle, the other of the output electrode base and the output electrode protection cover is provided with a second buckling groove and a guide projection, the guide projection is adjacent to the second buckling groove, and the guide projection is used for guiding and inserting the second elastic buckle into the second buckling groove.
As an optimal scheme of the end plate assembly, the first elastic buckle is an elastic arm, the elastic arm and the side face of the output pole base are included angles, the connecting end of the elastic arm is connected with the side face of the output pole base, and the suspension end of the elastic arm is spaced from the output pole base.
As a preferable scheme of the end plate assembly, a groove wall at the notch of the first mounting groove is further concavely provided with a guide groove, the guide groove is communicated with the first fastening groove, and the elastic arm penetrates through the guide groove and is inserted into the first fastening groove.
As a preferable mode of the end plate assembly, the depth of the guide groove is smaller than that of the first fastening groove.
As a preferable scheme of the end plate assembly, one of the bottom of the output electrode base and the bottom of the first mounting groove is provided with a limiting projection, and the other is provided with a limiting hole, and the limiting projection is inserted into the limiting hole.
As a preferable scheme of the end plate assembly, the limiting projection is disposed on the output pole base, and a size of one end, close to the output pole base, of the limiting projection is larger than a size of one end, far away from the output pole base, of the limiting projection.
As a preferred embodiment of the end plate assembly, a second mounting groove is formed in the output electrode base, the second fastening groove and the guide projection are formed in a wall of the second mounting groove, the second elastic fastener includes a connecting arm and a hook, the hook is connected to the output electrode protective cover through the connecting arm, and the hook is fastened in the second fastening groove.
As a preferable mode of the end plate assembly, the guide projection is located on a side of the connecting arm away from the end plate body.
As a preferable scheme of the end plate assembly, the output electrode protection cover is provided with a notch, the notch is used for penetrating an electric wire, and the periphery of the notch is provided with a protection bulge.
In a second aspect, a battery module is provided, which includes the above-mentioned end plate assembly.
In a third aspect, a battery pack is provided, which includes the battery module.
The utility model has the advantages that: through the arrangement of the first elastic buckle and the first buckling groove, the output electrode base and the end plate body can be detachably connected and fixed in a buckling mode, and the subsequent output electrode is convenient to detach and maintain; the guide lug is arranged, so that the output pole protective cover and the output pole base can be conveniently buckled and connected, the guide lug can provide guide for the movement of the second elastic buckle, the second elastic buckle can be smoothly inserted into the second buckling groove, and the assembling difficulty between the output pole base and the output pole protective cover is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic view of an end plate assembly according to an embodiment of the present invention.
Fig. 2 is a partial exploded view of the end plate assembly according to the embodiment of the present invention.
Fig. 3 is a schematic view of an output electrode base according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the protection cover of the output electrode according to the embodiment of the present invention.
In the figure:
1. an end plate body; 101. a first mounting groove; 102. a first fastening slot; 103. a guide groove; 104. a limiting hole; 105. a cavity; 2. an output pole base; 201. a resilient arm; 202. a limiting bump; 203. a second mounting groove; 204. a second fastening groove; 205. a guide projection; 3. an output electrode protection cover; 301. a second elastic buckle; 3011. a connecting arm; 3012. a hook; 302. a notch; 303. a protective projection; 304. avoiding the inclined plane.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
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, detachably 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a pair of end plate assembly, including end plate body 1, output utmost point base 2 and output utmost point visor 3, refer to fig. 2 and 3, be provided with first mounting groove 101 on the end plate body 1, output utmost point base 2 sets up in first mounting groove 101, output utmost point visor 3 and output utmost point base 2 are connected, be provided with first elasticity on the output utmost point base 2 and detain, the cell wall depression of first mounting groove 101 is provided with first buckling groove 102, first elastic arm 201 chucking is in first buckling groove 102, one of output utmost point base 2 and output utmost point visor 3 both is provided with second elasticity and detains 301, the other is provided with second buckling groove 204 and guide lug 205, guide lug 205 is adjacent to second buckling groove 204, guide lug 205 is used for detaining 301 direction with the second elasticity and inserts in second buckling groove 204. Through the arrangement of the first elastic buckle and the first buckling groove 102, the output electrode base 2 and the end plate body 1 can be detachably connected and fixed in a buckling mode, and the subsequent output electrode is convenient to detach and maintain; the guide projection 205 is arranged, so that the output electrode protective cover 3 and the output electrode base 2 can be conveniently buckled and connected, and the guide projection 205 can provide a guide for the movement of the second elastic buckle 301, so that the second elastic buckle 301 can be smoothly inserted into the second buckling groove 204, and the assembly difficulty between the output electrode base 2 and the output electrode protective cover 3 is reduced.
Referring to fig. 1, the first direction is an X direction in the drawing, the second direction is a Y direction in the drawing, the third direction is a Z direction in the drawing, and the first direction, the second direction, and the third direction are perpendicular to each other. In this embodiment, the length direction of the guiding protrusion 205 extends along the first direction, and the second elastic buckle 301 is inserted into the second buckling groove 204 along the first direction.
Referring to fig. 3, specifically, the first elastic fastener is an elastic arm 201, the elastic arm 201 and the side surface of the output electrode base 2 form an included angle, the elastic arm 201 has a connection end and a free end, the connection end of the elastic arm 201 is connected to the side surface of the output electrode base 2, the free end of the elastic arm 201 and the output electrode base 2 are arranged at an interval, in this embodiment, the free end is located above the connection end, the elastic arm 201 is clamped in the first fastening groove 102, and in this embodiment, the free end of the elastic arm 201 and the upper groove wall of the first fastening groove 102 abut against each other. With first elasticity knot setting as elastic arm 201, elastic arm 201 simple structure, processing is convenient, can reduce the manufacturing cost of end plate subassembly, during the equipment, in the in-process that exports utmost point base 2 and insert first mounting groove 101, elastic arm 201 receives the extrusion and produces the deformation, at this moment, the cell wall extrusion elastic arm 201 of first mounting groove 101, make the free end of elastic arm 201 move towards exports utmost point base 2, after exports utmost point base 2 and inserts first mounting groove 101 completely, elastic arm 201 inserts in first buckling groove 102, at this moment, elastic arm 201 and the cell wall separation of first mounting groove 101, the free end of elastic arm 201 resets the back, the free end of elastic arm 201 can support tightly with the cell wall of first buckling groove 102, realize that the lock between exports utmost point base 2 and the end plate body 1 is connected.
In this embodiment, the elastic arm 201 and the output pole base 2 are integrally formed, so that the connection stability between the two can be improved, and the connection stability between the output pole base 2 and the end plate body 1 can be improved.
In this embodiment, in order to better achieve the connection stability between the output pole base 2 and the end plate body 1, it is necessary to reduce the distance between the side surface of the output pole base 2 and the groove wall of the first mounting groove 101 as much as possible, thereby reducing the moving space of the output pole base 2 in the first mounting groove 101 and reducing the movement of the output pole base 2, and therefore, the gap between the groove wall of the first mounting groove 101 and the side surface of the output pole base 2 is very small, and preferably, the side surface of the output pole base 2 is attached to the groove wall of the first mounting groove 101.
Specifically, a groove wall at the notch of the first mounting groove 101 is recessed to form a guide groove 103, the guide groove 103 is communicated with the first fastening groove 102, and the elastic arm 201 passes through the guide groove 103 and is inserted into the first fastening groove 102. Through setting up guide way 103, can provide installation space for elastic arm 201 can insert smoothly in first mounting groove 101, thereby gets into in first buckling groove 102 and supports tightly with the cell wall of first buckling groove 102, realizes being connected between output pole base 2 and the end plate body 1.
It should be noted that, in the third direction, the depth of the guiding groove 103 is smaller than the depth of the first fastening groove 102, and more precisely, the depth of the guiding groove 103 is smaller than the distance between the free end of the elastic arm 201 and the side surface of the output electrode base 2, so as to ensure that the free end of the elastic arm 201 can be tightly abutted against the groove wall of the first fastening groove 102, and prevent the output electrode base 2 and the end plate body 1 from being separated.
Specifically, in the second direction, the size of the first fastening groove 102 is larger than the width of the elastic arm 201, so that the processing precision of the first fastening groove 102 can be reduced, and the manufacturing cost of the endplate body 1 can be reduced. In this embodiment, after the elastic arm 201 is inserted into the first fastening groove 102, since the dimension of the first fastening groove 102 in the second direction is greater than the width of the elastic arm 201, the first fastening groove 102 can only limit the output electrode base 2 in the first direction and the third direction, the output electrode base 2 can still move in the second direction, by providing the limiting protrusion 202 and the limiting hole 104, the output electrode base 2 can be limited in the second direction by the cooperation of the limiting protrusion 202 and the limiting hole 104, after the output electrode base 2 is completely inserted into the first mounting groove 101, the limiting protrusion 202 can be inserted into the limiting hole 104, and the limitation of the output electrode base 2 is realized. In another embodiment, the limiting protrusion 202 may be disposed at the bottom of the first mounting groove 101, and in this case, the limiting hole 104 needs to be correspondingly disposed at the bottom of the output pole base 2. In this embodiment, the limiting hole 104 is a through hole, and in other embodiments, the limiting hole 104 may be a blind hole, and at this time, it is only required to ensure that the depth of the limiting hole 104 is greater than the length of the limiting bump 202.
Preferably, the size of the end of the limiting protrusion 202 close to the output pole base 2 is larger than the size of the end of the limiting protrusion 202 far from the output pole base 2, and at this time, the limiting protrusion 202 is tapered, so that the limiting protrusion 202 can be conveniently inserted into the limiting hole 104.
Specifically, the output electrode base 2 is provided with a second mounting groove 203, a groove wall of the second mounting groove 203 is provided with a second fastening groove 204 and a guiding protrusion 205, at this time, the second elastic fastener 301 is disposed on the output electrode protection cover 3, referring to fig. 4, the second elastic fastener 301 includes a connecting arm 3011 and a hook 3012, the hook 3012 is connected with the output electrode protection cover 3 through the connecting arm 3011, and the hook 3012 is fastened in the second fastening groove 204. In this embodiment, the connection arm 3011 also has elasticity, and after the output electrode protection cover 3 is completely inserted into the second mounting groove 203, the hook 3012 is fastened to the second fastening groove 204, so as to fix the position between the output electrode base 2 and the output electrode protection cover 3.
Specifically, when the hook 3012 is located in the second fastening slot 204, the guiding protrusion 205 is located on a side of the connecting arm 3011 away from the endplate body 1. In this embodiment, in the second direction, the width of the second fastening groove 204 is greater than the width of the hook 3012, so that the processing precision of the second fastening groove 204 can be reduced, and the production cost can be reduced, when the hook 3012 is inserted into the first fastening groove, the second fastening groove 204 can only limit the output electrode protection cover 3 in the first direction and the third direction, the output electrode protection cover 3 can still move in the second direction, the guiding protrusion 205 is located on the side of the hook 3012 away from the electric core, and the guiding protrusion 205 and the groove wall of the second mounting groove 203 can limit the output electrode base 2 in the second direction.
In this embodiment, a containing cavity is provided between the output electrode base 2 and the output electrode protection cover 3, the containing cavity is used for placing an electrode connecting sheet of a battery module, a notch 302 is further provided on the output electrode protection cover 3, a protection protrusion 303 is provided on the periphery of the notch 302, and when the external electric wire is used, the external electric wire can extend into the containing cavity through the notch 302 and is electrically connected with the electrode connecting sheet. Through setting up protection arch 303, can reduce the probability that the finger touched the electrode connection piece, reduce the possibility that the people electrocuted, improve the security performance.
Referring to fig. 1, in this embodiment, a plurality of cavities 105 are disposed on the end plate body 1, and the arrangement of the cavities 105 not only can reduce the weight of the end plate body 1, but also can enable the end plate body 1 to absorb the expansion generated by the battery core, thereby improving the safety performance of the battery module. In this embodiment, the end plate body 1 is formed by die casting, and the opening of the cavity 105 faces the second direction.
This embodiment still provides a battery module, including foretell end plate assembly, because dismantle the convenience between the output pole base 2 of above-mentioned end plate assembly and the end plate body 1, when battery module broke down, can conveniently change the maintenance, made battery module have longer life.
This embodiment still provides a battery package, including foretell battery module, because foretell battery module maintains when using conveniently when detecting the output pole of battery module and goes wrong, can in time dismantle the maintenance to output pole base 2 and end plate body 1, the battery package that is have higher security performance.
Preferably, the output electrode protection cover 3 further has an avoiding inclined surface 304, in this embodiment, the avoiding inclined surface 304 is connected to the top surface and the side surface of the output electrode protection cover 3, and by providing the avoiding inclined surface 304, the output electrode protection cover 3 can form an avoiding area, so as to avoid other structures inside the battery pack, facilitate installation of other parts, and reduce the size of the battery pack.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (11)
1. An end plate assembly comprises an end plate body, an output pole base and an output pole protective cover, wherein a first mounting groove is formed in the end plate body, the output pole base is arranged in the first mounting groove, and the output pole protective cover is connected with the output pole base.
2. The end plate assembly of claim 1, wherein the first resilient tab is a resilient arm, the resilient arm forms an included angle with a side of the output pole base, a connecting end of the resilient arm is connected to the side of the output pole base, and a free end of the resilient arm is spaced from the output pole base.
3. The end plate assembly according to claim 2, wherein a guide groove is further concavely formed on a groove wall of the first mounting groove, the guide groove is communicated with the first fastening groove, and the elastic arm is inserted into the first fastening groove through the guide groove.
4. The header assembly of claim 3, wherein the depth of the guide channel is less than the depth of the first snap channel.
5. The end plate assembly according to any one of claims 1 to 4, wherein one of a bottom of the output pole base and a bottom of the first mounting groove is provided with a limit projection, and the other is provided with a limit hole, the limit projection being inserted into the limit hole.
6. The end plate assembly of claim 5, wherein the retention tab is disposed on the output pole base, and wherein an end of the retention tab proximal to the output pole base is larger than an end of the retention tab distal from the output pole base.
7. The end plate assembly of claim 1, wherein a second mounting groove is formed on the output electrode base, the second locking groove and the guiding protrusion are formed on a wall of the second mounting groove, the second elastic fastener includes a connecting arm and a hook, the hook is connected to the output electrode protection cover through the connecting arm, and the hook is locked in the second locking groove.
8. The endplate assembly according to claim 7, wherein the guide projection is located on a side of the connecting arm distal from the endplate body.
9. The end plate assembly according to claim 1, wherein the output electrode protection cover is provided with a notch for passing an electric wire, and a peripheral portion of the notch is provided with a protective protrusion.
10. A battery module comprising the end plate assembly according to any one of claims 1 to 9.
11. A battery pack comprising the battery module according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699532.9U CN217158466U (en) | 2022-03-25 | 2022-03-25 | End plate assembly, battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699532.9U CN217158466U (en) | 2022-03-25 | 2022-03-25 | End plate assembly, battery module and battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN217158466U true CN217158466U (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220699532.9U Active CN217158466U (en) | 2022-03-25 | 2022-03-25 | End plate assembly, battery module and battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050916A1 (en) * | 2022-09-07 | 2024-03-14 | 湖北亿纬动力有限公司 | Output electrode assembly, and battery module |
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2022
- 2022-03-25 CN CN202220699532.9U patent/CN217158466U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050916A1 (en) * | 2022-09-07 | 2024-03-14 | 湖北亿纬动力有限公司 | Output electrode assembly, and battery module |
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