CN217589168U - Top cover assembly and power battery - Google Patents
Top cover assembly and power battery Download PDFInfo
- Publication number
- CN217589168U CN217589168U CN202221350309.XU CN202221350309U CN217589168U CN 217589168 U CN217589168 U CN 217589168U CN 202221350309 U CN202221350309 U CN 202221350309U CN 217589168 U CN217589168 U CN 217589168U
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- plastic
- hole
- utmost point
- point post
- riveting
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- 239000011148 porous material Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a top cap subassembly and power battery, wherein, the top cap subassembly is including the apron, utmost point post, go up plastic and lower plastic, it sets up the relative both sides at the apron respectively with lower plastic to go up the plastic, be equipped with first through-hole on the apron, it is equipped with and the second through-hole to go up the plastic, the plastic is equipped with the third through-hole down, set up the riveting inclined plane in the pore wall of second through-hole, the lateral wall of utmost point post is along the sunken silo that subtracts that is provided with of circumference, the one end of utmost point post is provided with the convex structure, subtract the silo adjacent to convex structure, utmost point post passes in third through-hole and the first through-hole extends the second through-hole, and rivet through convex structure and riveting inclined plane. The utility model discloses an utmost point post not only can reduce boss structure's intensity through subtracting the silo, required riveting force when reducing the riveting, and the deflection of utmost point post reduces, subtracts the silo simultaneously and can also provide deformation space for boss structure, avoids going up the plastic because of the too big and deformation extrusion of utmost point post of riveting force takes place the fracture.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a top cap subassembly and power battery.
Background
The top cover component is an important component of the power battery. For the riveting type top cover assembly, the pole is usually riveted with the riveting aluminum block, and welding is needed after riveting, so that parts (riveting aluminum blocks) are added, and poor welding is easily caused.
In order to solve the above problems, the conventional top cover assembly is directly riveted with the upper plastic by the pole, but in the riveting process, the upper plastic is cracked and damaged due to overlarge riveting force, so that the yield of the top cover assembly is affected.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at: the utility model provides a top cap subassembly and power battery, its simple structure can solve utmost point post and last plastic riveting effectively, goes up the plastic and takes place the problem of damaging easily.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the first aspect provides a top cap subassembly, including apron, utmost point post, last plastic and lower plastic, go up the plastic with the plastic sets up respectively down the relative both sides of apron, be provided with first through-hole on the apron, it is provided with the second through-hole to go up the plastic, the plastic is provided with the third through-hole down, set up the riveting inclined plane in the pore wall of second through-hole, the riveting inclined plane is located the second through-hole is kept away from down the one end of plastic, the lateral wall of utmost point post is along the sunken material reducing tank that is provided with of circumference, the one end of utmost point post is provided with boss structure, the material reducing tank is adjacent to boss structure, utmost point post passes the third through-hole with first through-hole extends in the second through-hole, utmost point post passes through boss structure with the riveting inclined plane is riveted.
As a preferable scheme of the top cover component, the outer side wall of the upper plastic is provided with a reinforcing structure.
As a preferred form of the cap assembly, the pole is square or oval or circular in cross-section.
As a preferred scheme of top cap subassembly, the apron is sunken to be provided with first spacing groove, go up the bottom card of plastic and establish first spacing inslot.
As a preferred scheme of the top cover assembly, one of the cover plate and the upper plastic is provided with a plurality of limiting bulges, the other of the cover plate and the upper plastic is provided with a plurality of clamping grooves, and the limiting bulges are inserted into the clamping grooves.
As a top cap subassembly's a preferred scheme, utmost point post includes utmost point post body and sets up the polar plate of utmost point post body one end, the plastic is kept away from down one side of apron is provided with the second spacing groove, the polar plate sets up the second spacing inslot.
As a preferred scheme of the top cover assembly, one end, far away from the polar plate, of the polar pole is provided with a blind guiding hole.
As a preferred scheme of the top cover assembly, the top cover assembly further comprises a sealing element, the sealing element is sleeved on the pole body, and the sealing element is respectively abutted between the pole plate and the cover plate.
As a preferred scheme of the top cover assembly, the cover plate is provided with an explosion-proof hole, and an explosion-proof assembly is arranged in the explosion-proof hole.
In a second aspect, a power battery is provided, which includes a housing and a battery cell disposed inside the housing, where the housing is provided with an opening, and the power battery further includes the above-mentioned top cover assembly, and the top cover assembly is sealed and plugged in the opening.
The utility model has the advantages that:
(1) The pole is directly riveted with the upper plastic without riveting and welding through a riveting block, so that the parts of the top cover assembly can be reduced, the weight of the top cover assembly can be reduced, and the problem of poor welding of the pole can be avoided;
(2) Through setting up the reducing groove adjacent to boss structure, reducing groove can reduce boss structure's structural strength, required riveting force when reducing utmost point post riveting, and then can reduce the deflection of utmost point post, reducing groove can hold the deflection of utmost point post simultaneously, avoids going up the plastic effectively and extrudees the emergence fracture because of the riveting is too big or the deformation of utmost point post at the riveting in-process, and the deflection of utmost point post reduces the flatness that can also guarantee behind the riveting of utmost point post moreover.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a perspective view of a top cover assembly according to an embodiment of the present invention.
Fig. 2 is an exploded assembly view of a cover assembly according to an embodiment of the present invention.
Fig. 3 is an exploded assembly view of another embodiment of the present invention.
Fig. 4 is a cross-sectional view of a cap assembly in accordance with an embodiment of the present invention.
Fig. 5 is a bottom view of the upper plastic according to the embodiment of the present invention.
In the figure:
1. a cover plate; 11. a first through hole; 12. a first limit groove; 13. an explosion-proof hole; 2. a pole column; 21. a material reducing tank; 22. a boss structure; 23. a pole body; 24. a polar plate; 25. a blind guide hole; 3. plastic is coated; 31. a second through hole; 32. riveting an inclined plane; 33. a reinforcing structure; 4. plastic is discharged; 41. a third through hole; 5. a limiting bulge; 6. a card slot; 7. a seal member; 8. an explosion-proof assembly.
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 to 4, the utility model provides a pair of top cap subassembly, which comprises an apron 1, utmost point post 2, go up plastic 3 and lower plastic 4, it sets up the relative both sides at apron 1 respectively with lower plastic 4 to go up plastic 3, in this embodiment, apron 1, utmost point post 2, it arranges along vertical direction to go up plastic 3 and lower plastic 4, be provided with first through-hole 11 on the apron 1, it is provided with second through-hole 31 to go up plastic 3, lower plastic 4 is provided with third through-hole 41, set up riveting inclined plane 32 in second through-hole 31's the pore wall, riveting inclined plane 32 is located the one end that plastic 4 was kept away from down to second through-hole 31, the lateral wall of utmost point post 2 is provided with subtracts silo 21 along the circumference is sunken, the one end of utmost point post 2 is provided with boss structure 22, subtract silo 21 adjacent to boss structure 22, utmost point post 2 passes third through-hole 41 and first through-hole 11 extends to in the second through-hole 31, utmost point post 2 is riveted with riveting inclined plane 32 and is formed riveted structure. The pole 2 is directly riveted with the upper plastic 3 without riveting and welding through a riveting block, so that the parts of the top cover assembly can be reduced, the weight of the top cover assembly can be reduced, and the problem of poor welding of the pole 2 can be avoided; utmost point post 2 is through setting up boss structure 22, and subtracts material groove 21 and be close to boss structure 22, subtracts material groove 21 and can reduce boss structure 22's structural strength, required riveting force when reducing utmost point post 2 riveting, and then can reduce utmost point post 2's deflection, subtracts the deflection that material groove 21 can hold utmost point post 2 simultaneously, avoids going up plastic 3 effectively and takes place the fracture because of the too big deformation extrusion of riveting force or utmost point post 2 in the riveting process, and utmost point post 2's deflection reduces and can also guarantee the plane degree after 2 riveting of utmost point post.
Specifically, as shown in fig. 4, an included angle between the riveting slope 32 and a side surface of the upper plastic 3 away from the cover plate 1 is α, where 0< α <90 °.
Preferably, 30 ° ≦ α <90 °.
Illustratively, the relief groove 21 is adjacent to the boss structure 22, and one of the groove walls of the relief groove 21 is flush with the boss structure 22. The material reducing groove 21 with the design can accommodate more deformation of the boss structure 22, and can ensure that the boss structure 22 is formed with an inclined surface matched with the riveting inclined surface 32.
Further, the outer side wall of the upper plastic 3 is provided with a reinforcing structure 33. Through setting up additional strengthening 33, can increase the area of the horizontal cross-section of last plastic 3, riveting force can evenly distribute in last plastic 3 when riveting, prevents that utmost point post 2 from rising the material and warping and leading to plastic 3 fracture, further improves the structural strength of last plastic 3.
Specifically, a plurality of reinforcing ribs are protruded from the outer side wall of the upper plastic 3 at intervals.
In one embodiment, as shown in fig. 4, a blind guiding hole 25 is disposed at an end of the pole 2 far from the upper plastic 3. Specifically, the blind guiding hole 25 is a conical hole, and in the assembling process, the tool can be pre-pressed through the preset blind guiding hole 25, so that the pole 2 and the upper plastic 3 can be riveted.
Specifically, the cross section of the pole 2 is square, oval or circular.
Preferably, as shown in fig. 2 and 3, the pole 2 is square or oval. The square pole and the oval pole are provided with corners, so that the torsion of the pole 2 can be limited, and the torsional strength of the pole 2 is improved; and when utmost point post 2 is the ellipse shape, can reduce each spare part top cap subassembly's of top cap subassembly width according to the shape of ellipse, increase top cap subassembly's aspect ratio, top cap subassembly width reduces, can reduce the space that power battery occupy, improves power battery's energy density.
Specifically, utmost point post 2 includes utmost point post body 23 and sets up the polar plate 24 in utmost point post body 23 one end, and polar plate 24 can with 4 butts of lower plastic, utmost point post 2 can be in the same place plastic 3, apron 1 and lower plastic 4 fastening through riveted structure and polar plate 24.
Furthermore, a first limiting groove 12 is concavely arranged on the cover plate 1, the shape of the first limiting groove 12 is the same as that of the upper plastic 3, and the bottom of the upper plastic 3 can be clamped in the first limiting groove 12. Through setting up first spacing groove 12, go up the second through-hole 31 of plastic 3 and can align with the first through-hole 11 of apron 1 fast, play the effect of location, but also can carry on spacingly to last plastic 3, avoid going up plastic 3 and take place to twist reverse, further improve top cap assembly's antitorque ability.
Preferably, as shown in fig. 4, a second limiting groove is further disposed on one side of the lower plastic 4 away from the cover plate 1, and the pole plate 24 is clamped in the second limiting groove. Through setting up the second spacing groove, can carry on spacingly to utmost point post 2, avoid utmost point post 2 to take place to twist reverse, improve utmost point post 2's torsional strength.
In another embodiment, as shown in fig. 3 and 5, a plurality of slots 6 are disposed on a side surface of the cover plate 1 close to the upper plastic 3, and a plurality of limiting protrusions 5 are disposed at the bottom of the upper plastic 3, so that when the upper plastic 3 abuts against the cover plate 1, the limiting protrusions 5 can be inserted into the slots 6 to further limit the upper plastic 3, thereby improving the torsion resistance of the top cover assembly.
In an embodiment, a limiting protrusion 5 may also be disposed on the cover plate 1, and a locking groove 6 is disposed at the bottom of the upper plastic 3.
In other embodiments, in order to greatly improve the torsion resistance of the top cap assembly, the cover plate 1 may also be provided with the first limiting groove 12, and at the same time, the clamping structure of the clamping groove 6 and the limiting protrusion 5 is provided.
Specifically, as shown in fig. 2 to 4, the top cover assembly further includes a sealing element 7, the sealing element 7 is sleeved on the pole body 23, and the sealing element 7 abuts between the pole plate 24 and the cover plate 1, respectively, and the sealing element 7 can ensure the sealing performance of the top cover assembly.
Specifically, still be provided with explosion-proof hole 13 on the apron 1, be provided with explosion-proof subassembly 8 in the explosion-proof hole 13, explosion-proof subassembly 8 includes the explosion-proof piece at least, and explosion-proof subassembly 8 passes through laser welding in explosion-proof hole 13, and when the pressure in the power battery was too big, the power battery can carry out the pressure release through explosion-proof subassembly 8, avoids the power battery to explode. The design can improve the safety of the power battery on the premise of ensuring the sealing performance of the top cover component.
The utility model also provides a power battery, including shell and the electric core of setting in the shell inside, the shell is provided with the opening, still includes as above the top cap subassembly, top cap subassembly shutoff in the opening. Be applied to the power battery of the top cap subassembly of this implementation, can avoid top cap subassembly to go up plastic 3 appearance fracture when riveting and reduce power battery's quality.
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 (10)
1. The utility model provides a top cap subassembly, includes apron, utmost point post, goes up plastic and lower plastic, go up the plastic with the plastic sets up respectively down the relative both sides of apron, be provided with first through-hole on the apron, it is provided with the second through-hole to go up the plastic, the plastic is provided with the third through-hole down, a serial communication port, set up the riveting inclined plane in the pore wall of second through-hole, the riveting inclined plane is located the second through-hole is kept away from down the one end of plastic, the lateral wall of utmost point post is along the sunken material reducing tank that is provided with of circumference, the one end of utmost point post is provided with boss structure, the material reducing tank is adjacent to boss structure, utmost point post passes the third through-hole with first through-hole extends in the second through-hole, utmost point post passes through boss structure with riveting inclined plane riveting.
2. The lid assembly of claim 1, wherein the outer sidewall of the upper plastic is provided with a reinforcing structure.
3. The header assembly of claim 1, wherein the cross-section of the pole is square, oval, or circular.
4. The top cap assembly of claim 1, wherein the cover plate has a first retaining groove recessed therein, and the bottom of the upper plastic is engaged with the first retaining groove.
5. The top cap assembly of claim 1, wherein one of the cover plate and the upper plastic is provided with a plurality of limiting protrusions, the other of the cover plate and the upper plastic is provided with a plurality of slots, and the limiting protrusions are inserted into the slots.
6. The top cap assembly of claim 1, wherein the post comprises a post body and a pole plate disposed at one end of the post body, the boss structure and the relief groove are both disposed on the post body, a second limiting groove is disposed on one side of the lower plastic away from the cover plate, and the pole plate is disposed in the second limiting groove.
7. The top cap assembly of claim 6, wherein the end of the pole remote from the pole plate is provided with a blind via hole.
8. The cap assembly of claim 6, further comprising a sealing member, wherein the sealing member is sleeved on the post body and the sealing member is respectively abutted between the pole plate and the cover plate.
9. The header assembly of any one of claims 1 to 8, wherein the cover plate is provided with a blast-proof hole, and wherein a blast-proof assembly is provided in the blast-proof hole.
10. A power battery, comprising a casing and a battery cell arranged in the casing, wherein the casing is provided with an opening, and the top cover assembly of any one of claims 1 to 9 is included, and the top cover assembly blocks the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221350309.XU CN217589168U (en) | 2022-05-31 | 2022-05-31 | Top cover assembly and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221350309.XU CN217589168U (en) | 2022-05-31 | 2022-05-31 | Top cover assembly and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217589168U true CN217589168U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221350309.XU Active CN217589168U (en) | 2022-05-31 | 2022-05-31 | Top cover assembly and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217589168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115939692A (en) * | 2023-02-09 | 2023-04-07 | 深圳海润新能源科技有限公司 | Lower plastic component, end cover component, energy storage device and electric equipment |
-
2022
- 2022-05-31 CN CN202221350309.XU patent/CN217589168U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115939692A (en) * | 2023-02-09 | 2023-04-07 | 深圳海润新能源科技有限公司 | Lower plastic component, end cover component, energy storage device and electric equipment |
| US12009550B1 (en) | 2023-02-09 | 2024-06-11 | Shenzhen Hithium Energy Storage Technology Co., Ltd. | Lower plastic assembly, end cover assembly, energy-storage apparatus, and electronic device |
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