CN219917368U - Top cap subassembly and utmost point post - Google Patents
Top cap subassembly and utmost point post Download PDFInfo
- Publication number
- CN219917368U CN219917368U CN202321229496.0U CN202321229496U CN219917368U CN 219917368 U CN219917368 U CN 219917368U CN 202321229496 U CN202321229496 U CN 202321229496U CN 219917368 U CN219917368 U CN 219917368U
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- Prior art keywords
- pole
- opening
- mounting hole
- surrounding
- assembly
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- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000012212 insulator Substances 0.000 claims description 12
- 238000001746 injection moulding Methods 0.000 claims description 9
- 239000012778 molding material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a top cover component and a pole, wherein the top cover component comprises: the mounting assembly is provided with a mounting hole; the pole penetrates through the mounting hole, a first opening is formed in the top of the pole, and a second opening communicated with the first opening is formed in the side part of the pole; the sealing member comprises an intermediate part and a surrounding part which are connected with each other, the intermediate part is positioned in the first opening and the second opening, and the surrounding part is positioned in the mounting hole and is filled between the pole and the mounting assembly. Through set up first opening and the second opening of intercommunication each other on the utmost point post for the sealing member can be through moulding plastics formation after utmost point post and installation component assembly are accomplished, thereby make the sealing member can fill the gap between mounting hole and the utmost point post, and then improved the sealing member among the correlation technique and can not fill the space between top cap and the utmost point post, make to have the gap between top cap and the utmost point post, the sealing member can not play fine sealed effect and insulating effect's technical problem.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a top cover assembly and a pole.
Background
In the process of manufacturing a battery (for example, a lithium ion battery), a pole mounting hole for mounting a pole on a top cover needs to be sealed, and insulation treatment is also required between the pole and the top cover.
In the related art, a finished seal is typically used to achieve the above effect, such as fitting a fabricated seal ring between a post and a post mounting hole. However, the manufacturing process of the top cap, the pole and the sealing member may cause a certain dimensional error in the final product, and during the assembly process of the sealing member, a certain assembly error exists, so that the finally assembled sealing member cannot fill the space between the top cap and the pole, and a gap exists between the top cap and the pole.
Thus, the sealing member in the related art cannot fill up the space between the top cover and the pole, so that a gap is formed between the top cover and the pole, and the sealing member cannot have a good sealing effect and an insulating effect.
Disclosure of Invention
The embodiment of the utility model provides a top cover assembly and a pole, which can solve the technical problems that a sealing element in the related art cannot fill up the space between the top cover and the pole, so that a gap is formed between the top cover and the pole, and the sealing element cannot have a good sealing effect and an insulating effect.
In a first aspect, embodiments of the present utility model provide a top cap assembly comprising:
the mounting assembly is provided with a mounting hole;
the pole penetrates through the mounting hole, a first opening is formed in the top of the pole, and a second opening communicated with the first opening is formed in the side portion of the pole;
and the sealing piece comprises an intermediate part and a surrounding part which are connected with each other, the intermediate part is positioned in the first opening and the second opening, and the surrounding part is positioned in the mounting hole and is filled between the pole and the mounting assembly.
In one embodiment, the mounting assembly includes a first insulator, the mounting hole includes a first mounting hole provided in the first insulator, and the surrounding portion of the seal includes a first surrounding portion surrounding the pole;
the first surrounding part is positioned in the first mounting hole and is filled between the pole and the first insulating piece.
In one embodiment, the top of the first surrounding portion is flush with the top surface of the first insulating member.
In an embodiment, the mounting assembly further comprises a top cover on the first insulator, the mounting hole further comprises a second mounting hole on the top cover, and the surrounding portion of the seal further comprises a second surrounding portion surrounding the pole;
the second mounting hole is positioned on the first mounting hole, the pole penetrates through the second mounting hole, and the second surrounding part is positioned in the second mounting hole and is filled between the pole and the top cover.
In an embodiment, the boundary of the orthographic projection of the first surrounding portion on the first insulating member is located within the boundary of the orthographic projection of the second surrounding portion on the first insulating member.
In an embodiment, the top of the second opening is higher than the top of the second mounting hole.
In an embodiment, the side portion of the pole is provided with a plurality of second openings, and the heights of the second openings on the side portion are different.
In one embodiment, the battery includes a cell within the housing, the cap assembly further comprising:
the bottom plate is positioned below the first insulating piece and comprises a first connecting part electrically connected with the pole, a second connecting part electrically connected with the pole lug of the battery cell and a protecting part connected between the first connecting part and the second connecting part;
wherein the width of the protection part is smaller than the width of the first connection part.
In a second aspect, embodiments of the present utility model provide a pole, wherein a first opening is formed in a top portion of the pole, a second opening communicating with the first opening is formed in a side portion of the pole, and the first opening and the second opening are used for accommodating injection molding materials.
In an embodiment, the pole includes a base portion and an external portion extending from a top of the base portion, the base portion is electrically connected to the electrical core, and the first opening and the second opening are disposed in the external portion.
The embodiment of the utility model has the beneficial effects that:
in the embodiment of the utility model, the first opening and the second opening which are mutually communicated are arranged on the pole, so that the sealing element can be formed by injection molding after the pole and the mounting assembly are assembled, the sealing element can fill the gap between the mounting hole and the pole, the gap between the pole and the mounting assembly is avoided, and the technical problems that the sealing element in the related art cannot fill the space between the top cover and the pole, the gap between the top cover and the pole, and the sealing element cannot achieve good sealing effect and insulating effect are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a header assembly provided by an embodiment of the present utility model;
fig. 2 is a schematic structural view of a top cap assembly provided by an embodiment of the present utility model;
FIG. 3 is a schematic view of a pole according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a pole equipped with a seal provided by an embodiment of the present utility model;
FIG. 5 is a schematic structural view of a seal provided by an embodiment of the present utility model;
FIG. 6 is a schematic view of a pole and base plate provided by an embodiment of the present utility model;
FIG. 7 is a schematic illustration of an assembled pole and base plate according to an embodiment of the present utility model;
FIG. 8 is a schematic illustration of an assembled pole, base plate and seal provided by an embodiment of the present utility model;
fig. 9 is a schematic view of a structure equipped with a first insulating member provided in an embodiment of the present utility model;
fig. 10 is a schematic view of a structure provided with a first insulator and a seal according to an embodiment of the present utility model;
FIG. 11 is a schematic view of a structure provided with a top cover according to an embodiment of the present utility model;
FIG. 12 is a schematic view of a structure provided with a cap and seal in accordance with an embodiment of the present utility model;
fig. 13 is a schematic view of a structure equipped with a second insulating member provided by an embodiment of the present utility model;
fig. 14 is a schematic view of a structure provided with terminals according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the utility model provides a top cover assembly and a pole 2, so as to improve the condition that a sealing element in the related art cannot fill the space between the top cover 4 and the pole 2, so that a gap is formed between the top cover 4 and the pole 2, and the sealing element cannot have good sealing effect and insulating effect.
As shown in fig. 1 and 2, an embodiment of the present utility model provides a top cap assembly applied to a single battery, where the single battery includes a top cap assembly, a housing (not shown), and a battery cell (not shown), and an accommodating space for accommodating the battery cell is defined between the top cap assembly and the housing, and the battery cell is accommodated in the accommodating space.
As shown in fig. 3, the cap assembly includes a mounting assembly, a pole 2, and a seal. The mounting assembly is provided with a mounting hole, and the pole 2 passes through the mounting hole, namely, part of the pole 2 is positioned in the mounting hole. The top of the pole 2 is provided with a first opening 24, the side part of the pole 2 is provided with a second opening 25, and the first opening 24 is communicated with the second opening 25, i.e. a channel which is communicated with the first opening 24 and the second opening 25 is arranged inside the pole 2.
As shown in fig. 4 and 5, the sealing member includes an intermediate portion 33 and a surrounding portion connected to each other, the intermediate portion 33 being located in the first opening 24, the second opening 25 and the communication passage, and the surrounding portion being located in the mounting hole and filled between the pole 2 and the mounting assembly.
It can be appreciated that, since the first opening 24 and the second opening 25 which are mutually communicated are provided on the pole 2, the pole 2 and the mounting assembly can be assembled first, and then the sealing material is injected into the mounting hole through the first opening 24 and the second opening 25, so that the space between the pole 2 and the first mounting hole 11 is fully filled with the sealing material, and the gap between the mounting hole and the pole 2 can be filled with the sealing element formed by the sealing material, so that no gap exists between the pole 2 and the mounting assembly, a good sealing effect is achieved, and the pole 2 and the mounting assembly are fully insulated.
In this embodiment, through setting up first opening 24 and second opening 25 of intercommunication each other on utmost point post 2 for the sealing member can be formed through moulding plastics after utmost point post 2 and installation component assembly are accomplished, thereby make the sealing member can fill the gap between mounting hole and the utmost point post 2, and then improved the sealing member among the correlation technique and can not fill the space between top cap 4 and utmost point post 2, make the gap between top cap 4 and the utmost point post 2, the sealing member can not play the technical problem of fine sealed effect and insulating effect.
In order to better illustrate the inventive concepts of the present utility model, a number of specific embodiments will be provided below and with different emphasis on the description, it being understood that the embodiments described below are not limiting of the utility model, and that the various embodiments may be combined while still complying with the inventive concepts. In the event that the schemes do not conflict, the descriptions of features in the various embodiments may be referred to each other.
In one embodiment, as shown in fig. 1, the cap assembly includes a mounting assembly, a pole 2, and a seal. The mounting assembly comprises a first insulator 1 and a top cover 4, the top cover 4 being located on the first insulator 1. The mounting holes comprise a first mounting hole 11 formed in the first insulating member 1 and a second mounting hole 41 formed in the top cover 4, and the second mounting hole 41 is located above the first mounting hole 11.
The pole 2 passes through the first mounting hole 11 and the second mounting hole 41, i.e. a part of the pole 2 is located in the first mounting hole 11 and the second mounting hole 41.
The top of the pole 2 is provided with a first opening 24, the side part of the pole 2 is provided with a second opening 25, the first opening 24 is communicated with the second opening 25, and a channel which is communicated with the first opening 24 and the second opening 25 is arranged inside the pole 2.
The seal comprises an intermediate portion 33 and a surrounding portion. The intermediate portion 33 is located in the first opening 24, the second opening 25, and the communication passage, and the surrounding portion is located in the mounting hole and filled between the pole 2 and the mounting assembly.
As shown in fig. 5, 9, 10 and 12, the surrounding portion includes a first surrounding portion 31 and a second surrounding portion 32. The first surrounding portion 31 is disposed around the pole 2, and the first surrounding portion 31 is located in the first mounting hole 11 and filled between the pole 2 and the first insulating member 1. The second surrounding portion 32 is disposed around the pole 2, and the second surrounding portion 32 is located in the second mounting hole 41 and filled between the pole 2 and the top cover 4. The first surrounding portion 31 is used for sealing the first mounting hole 11, and the second surrounding portion 32 is used for sealing the second mounting hole 41. Since the top plate is made of a material selected to be conductive, an insulating process is required between the pole 2 and the top plate in order to avoid electrification of the top plate. Therefore, the first surrounding portion 31 and the second surrounding portion 32 serve to insulate the pole 2 from the top plate, and insulate the pole 2 from the top plate, in addition to sealing the mounting hole.
It will be appreciated that, since the first opening 24 and the second opening 25 which are in communication with each other are provided in the pole 2, the first insulating member 1 and the top cover 4 may be assembled first, and then a sealing material may be injected into the first mounting hole 11 and the second mounting hole 41 through the first opening 24 and the second opening 25, so that the sealing material may sufficiently fill the space between the pole 2 and the first mounting hole 11, form the first surrounding portion 31 which fills the gap between the first mounting hole 11 and the pole 2, and the second surrounding portion 32 which fills the gap between the second mounting hole 41 and the pole 2, so that the gap between the pole 2 and the first insulating member 1 and the top cover 4 may be filled with the sealing member. Because the sealing member is formed by injection molding after the pole 2, the first insulating member 1 and the top cover 4 are assembled, and gaps between the assembled components are molds of the sealing member, dimensional errors (or errors only in forming the sealing member) and assembly errors in assembling do not exist in manufacturing the components, so that the formed sealing member can have good sealing effect, and the pole 2 and the mounting assembly are fully insulated.
As shown in fig. 11, the first opening 24 is used as an injection molding opening, and at least a portion of the first opening is located outside the second mounting hole 41, so as to facilitate injection molding. And the second opening 25 serves as an output hole, at least partially located in the second mounting hole 41, so that the seal is formed in the first mounting hole 11 and the second mounting hole 41.
In this embodiment, through setting up first opening 24 and second opening 25 of intercommunication each other on utmost point post 2 for the sealing member can be formed through moulding plastics after utmost point post 2 and installation component assembly are accomplished, thereby make the sealing member can fill the gap between mounting hole and the utmost point post 2, and then improved the sealing member among the correlation technique and can not fill the space between top cap 4 and utmost point post 2, make the gap between top cap 4 and the utmost point post 2, the sealing member can not play the technical problem of fine sealed effect and insulating effect.
As shown in fig. 3, 4 and 5, in some embodiments, the pole 2 assembly includes a base portion 21 and an external portion 22 extending from a top of the base portion 21, the base portion 21 is configured to be electrically connected to the electrical core, and the external portion 22 is configured to be electrically connected to an external device. The liquid injection channel is arranged in the external connection part 22, the part of the external connection part 22 exposed out of the top cover 4 is provided with a first opening 24 communicated with the liquid injection channel, the part of the external connection part 22 positioned in the second mounting hole 41 is provided with a second opening 25 communicated with the liquid injection channel, and the liquid injection channel, the first opening 24 and the second opening 25 are used for forming the sealing element. The base portion 21 is located in the first mounting hole 11, and the external connection portion 22 includes portions located in the first mounting hole 11 and the second mounting hole 41. The first surrounding portion 31 is disposed around the external portion 22 and is located in a cavity formed by the base portion 21, the external portion 22, and the side wall of the first mounting hole 11. The second surrounding portion 32 is disposed around the external portion 22, and is located in a cavity formed by the external portion 22 and a sidewall of the second mounting hole 41.
In some embodiments, the boundary of the orthographic projection of the first surrounding portion 31 on the first insulating member 1 is located within the boundary of the orthographic projection of the second surrounding portion 32 on the first insulating member 1. I.e. the projected area of the first surrounding portion 31 is smaller than the projected area of the second surrounding portion 32. This arrangement allows the side walls of the first mounting hole 11 to be covered by the top cover 4 for better sealing. In some other embodiments, the mounting holes and the side walls of the second mounting holes 41 are staggered to achieve the above effect.
As shown in fig. 9, in some embodiments, the top of the base portion 21 does not exceed the top surface of the first insulating member 1, and the top of the first surrounding portion 31 is flush with the top surface of the first insulating member 1, and it is understood that the base portion 21 is located in the first mounting hole 11, and the top of the base portion 21 can be completely covered by the first surrounding portion 31 and the side wall of the first mounting hole 11, so that the base portion 21 cannot contact the top cover 4, and a good insulating effect is achieved.
In some embodiments, the first opening 24 is provided at the top of the external connection 22, i.e. the top of the pole 2, and the second opening 25 is provided at the side of the external connection 22, i.e. the side of the pole 2. In some embodiments, the first opening 24 may also be disposed on a side of the external portion 22, unlike the second opening 25, the second opening 25 needs to be at least partially disposed in the second mounting hole 41, and the first opening 24 needs to be at least partially disposed outside the second mounting hole 41. The top of the external portion 22 refers to an end of the external portion 22 away from the base portion 21, and the side of the external portion 22 refers to a portion of the external portion 22 located between the top of the external portion and the base portion 21. The top of the base portion 21 is an end of the base portion 21 connected to the external portion 22.
As shown in fig. 11 and 12, in some embodiments, the top of the second opening 25 is higher than the top of the second mounting hole 41 to ensure that the top surface of the second surrounding portion 32 is flush with the top surface of the top cover 4 when the sealing member is injection molded. That is, the second surrounding portion 32 can completely fill the cavity formed by the side wall of the second mounting hole 41 and the external portion 22.
In some embodiments, the side portion of the pole 2 is provided with a plurality of second openings 25, such as the second openings 25 are provided on two opposite sides of the external connection portion 22. The sealing material can flow out of the plurality of second openings 25 when forming the seal, ensuring that the mounting holes are sufficiently filled.
In some embodiments, the second openings 25 are different in height on the side of the circumscribed portion 22. When the thickness of the top cover 4 is thick, the second surrounding portion 32 cannot be formed well by the second openings 25 having only the same height due to limited climbing ability of the injection molding material, and therefore, when the thickness of the top cover 4 is thick, a plurality of the second openings 25 having different heights are provided on the side portion so that the formed second surrounding portion 32 can finally completely fill the second mounting hole 41.
In one embodiment, the material forming the seal comprises a fluororubber or a silicone rubber. A fluororubber or a silicone rubber is injection-molded into the inside of the pole 2 through the first opening 24 to form the intermediate portion 33, and flows between the pole 2 and the first mounting hole 41 and between the pole 2 and the second mounting hole 42 from the second outlet 25 to form the first surrounding portion 31 and the second surrounding portion 32.
The inventors have creatively found that when the injection molding is performed, the material forming the seal member has an injection speed of less than 55mm/s, and the seal member can have a sealing effect and an insulating effect between the top cover 4 and the pole 2, but the seal member may be cast into the case, reducing the capacity of the battery. In one embodiment, the material forming the seal is injected into the first opening 24 at a speed of 55mm/s or greater. In some embodiments, the speed at which the material forming the seal is injection molded into the first opening 24 may be 55mm/s, 58mm/s, 60mm/s, 65mm/s, 80mm/s, or 100mm/s.
In the above-described embodiments, the case where the external connection portion 22 of the pole 2 is used as the output terminal of the battery for connection with the outside is shown, and in some embodiments, the terminal 6 electrically connected to the pole 2 is used as the output terminal of the battery.
As shown in fig. 13 and 14, in an embodiment, the top cover assembly further includes a second insulator 5 and a terminal 6. The second insulating member 5 is located on the top plate, a containing groove 52 is formed in the second insulating member 5, and a third mounting hole 51 is formed in the bottom of the containing groove 52. The terminal 6 is located in the receiving groove 52 of the second insulating member 5, and a fourth mounting hole 61 is formed. The external connection portion 22 is located in the third mounting hole 51 and the fourth mounting hole 61, and is electrically connected to the terminal 6. The top surface of the terminal 6 and the top surface of the terminal 2 exposed to the terminal 6 cooperate as the output terminal to enlarge the contact surface of the output terminal of the battery. In this embodiment, the liquid filling port is disposed on the top surface of the external connection portion 22.
In the above embodiments, the pole 2 is electrically connected to the electrical core, and in some embodiments, the pole 2 is electrically connected to the electrical core through a connection member.
As shown in fig. 1, 6 and 7, in one embodiment, the top cover assembly further includes a bottom plate 7, and the bottom plate 7 is located below the first insulating member 1. The base plate 7 includes a first connection portion 71 and a second connection portion 72. The first connection portion 71 is electrically connected to the pole 2, and the second connection portion 72 is electrically connected to the tab of the battery cell. By providing the bottom plate 7, the pole 2 is prevented from direct contact with the tab of the cell.
In some embodiments, the first connection portion 71 is provided with a mounting groove 74, a fifth mounting hole 75 is provided at the bottom of the mounting groove 74, the fifth mounting hole 75 is smaller than the notch of the mounting groove 74, and the pole 2 further includes the mating portion 23. The engaging portion 23 is located on a side of the base portion 21 facing the bottom plate 7 and is located in the fifth mounting hole 75.
In some embodiments, the mating portion 23 is sized and shaped to mate with the fifth mounting hole 75 to limit the mating portion 23 through the fifth mounting hole 75. The base portion 21 is positioned in the mounting groove 74 and abuts against a side wall of the mounting groove 74. Therefore, the orthographic projection of the boundary of the fitting portion 23 on the bottom plate 7 is located within the orthographic projection range of the boundary of the base portion 21 on the base portion 21.
In some embodiments, the base plate 7 further comprises a protection portion 73 connected between the first connection portion 71 and the second connection portion 72. The width of the protection portion 73 is smaller than that of the first connection portion 71, so as to fuse when the current is too large, and break the electrical connection between the pole 2 and the battery cell, thereby protecting the battery.
The embodiment of the utility model also provides a pole 2, wherein the pole 2 is applied to a battery cell, and the battery cell further comprises a top cover 4, a shell and an electric core. And an accommodating space for accommodating the battery cell is defined between the top cover assembly and the shell, and the battery cell is accommodated in the accommodating space. The pole 2 is arranged in a mounting hole formed in the top cover 4 and is electrically connected with the battery cell.
In an embodiment, the pole 2 includes a base portion 21 and an external portion 22 extending from a top of the base portion 21, the base portion 21 is electrically connected to the battery cell, and the external portion 22 is provided with a first opening 24 and a second opening 25. The first opening 24 is disposed at the top of the external connection portion 22, and the second opening 25 is disposed at the side wall of the external connection portion 22. The external connection portion 22 is internally provided with a liquid injection channel communicated with the first opening 24 and the second opening 25, so that after the top plate is assembled, the pole 2 can form a sealing piece between the top cover 4 and the pole 2 through the first opening 24 and the second opening 25, thereby realizing the sealing of the mounting hole and the insulation between the pole 2 and the top cover 4. It will be appreciated that the first opening 24 and the second opening 25 are capable of receiving injection molding material.
The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (10)
1. A top cap assembly mounted to a housing of a battery, comprising:
the mounting assembly is provided with a mounting hole;
the pole penetrates through the mounting hole, a first opening is formed in the top of the pole, and a second opening communicated with the first opening is formed in the side portion of the pole;
and the sealing piece comprises an intermediate part and a surrounding part which are connected with each other, the intermediate part is positioned in the first opening and the second opening, and the surrounding part is positioned in the mounting hole and is filled between the pole and the mounting assembly.
2. The cap assembly of claim 1, wherein the mounting assembly includes a first insulator, the mounting hole includes a first mounting hole provided in the first insulator, and the surrounding portion of the seal includes a first surrounding portion surrounding the pole;
the first surrounding part is positioned in the first mounting hole and is filled between the pole and the first insulating piece.
3. The header assembly of claim 2, wherein a top of the first surrounding portion is flush with a top surface of the first insulating member.
4. The cap assembly of claim 2, wherein the mounting assembly further comprises a cap on the first insulator, the mounting hole further comprises a second mounting hole provided in the cap, the surrounding portion of the seal further comprises a second surrounding portion surrounding the pole;
the second mounting hole is positioned on the first mounting hole, the pole penetrates through the second mounting hole, and the second surrounding part is positioned in the second mounting hole and is filled between the pole and the top cover.
5. The header assembly of claim 4, wherein the boundary of the orthographic projection of the first surrounding portion on the first insulator is within the boundary of the orthographic projection of the second surrounding portion on the first insulator.
6. The header assembly of claim 4, wherein a top of the second opening is higher than a top of the second mounting hole.
7. The cap assembly of claim 6, wherein a plurality of the second openings are provided on the side of the pole, and the plurality of the second openings are different in height on the side.
8. The header assembly of claim 2, wherein the battery comprises a cell within the housing, the header assembly further comprising:
the bottom plate is positioned below the first insulating piece and comprises a first connecting part electrically connected with the pole, a second connecting part electrically connected with the pole lug of the battery cell and a protecting part connected between the first connecting part and the second connecting part;
wherein the width of the protection part is smaller than the width of the first connection part.
9. The utility model provides a utmost point post, its characterized in that, the top of utmost point post is equipped with first opening, the lateral part of utmost point post is equipped with the intercommunication first open-ended second opening, first opening with the second opening is used for holding the injection molding material.
10. The terminal of claim 9, wherein the terminal comprises a base portion and an external portion extending from a top of the base portion, the base portion is configured to be electrically connected to a battery cell, and the first opening and the second opening are disposed in the external portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321229496.0U CN219917368U (en) | 2023-05-19 | 2023-05-19 | Top cap subassembly and utmost point post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321229496.0U CN219917368U (en) | 2023-05-19 | 2023-05-19 | Top cap subassembly and utmost point post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917368U true CN219917368U (en) | 2023-10-27 |
Family
ID=88427880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321229496.0U Active CN219917368U (en) | 2023-05-19 | 2023-05-19 | Top cap subassembly and utmost point post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917368U (en) |
-
2023
- 2023-05-19 CN CN202321229496.0U patent/CN219917368U/en active Active
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