CN212342703U - Secondary battery pole assembly and secondary battery top cover thereof - Google Patents
Secondary battery pole assembly and secondary battery top cover thereof Download PDFInfo
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- CN212342703U CN212342703U CN202021146388.3U CN202021146388U CN212342703U CN 212342703 U CN212342703 U CN 212342703U CN 202021146388 U CN202021146388 U CN 202021146388U CN 212342703 U CN212342703 U CN 212342703U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a secondary battery utmost point post subassembly and secondary battery top cap thereof, wherein, secondary battery utmost point post subassembly includes: utmost point post, coupling assembling, sealing member and enclose the injection molding of locating utmost point post, coupling assembling have the first connecting piece that is fixed in the top cap piece and locate first connecting piece top and the second connecting piece of embedding injection molding, and the sealing member is between first connecting piece and utmost point post, and the through-hole has been seted up at the middle part of first connecting piece, and first connecting piece is equipped with ascending boss along the border of through-hole, and the sealing member encloses to establish and the butt in the boss. Compared with the prior art, the secondary battery post component only needs to fix the first connecting piece and the top cover plate, can complete the assembly of the post and the top cover plate, has simple procedures and does not need complex sealing and assembling processes. The first connecting piece is provided with an upward boss along the edge of the through hole, the sealing piece is surrounded and abutted against the boss, the sealing piece can be prevented from being compressed when the injection molding piece is injected, and the sealing failure is caused due to overflow, so that the safety performance of the secondary battery is improved.
Description
Technical Field
The utility model relates to an energy storage apparatus field especially relates to a secondary battery utmost point post subassembly and secondary battery top cap thereof.
Background
In modern society, driving power sources for more and more electric tools and new energy vehicles are developed in a direction of high capacity and high safety, and batteries are widely used in electric tools and new energy vehicles due to their excellent characteristics such as high capacity. These batteries should have good safety in addition to high capacity to meet the standards of use and to meet the needs of people.
General secondary battery, in order to satisfy the electrical insulation of utmost point post and top cap piece and casing, therefore can set up numerous insulating assembly, if go up plastic part with utmost point post and top cap piece insulation, arrange utmost point post mounting hole in and carry out electrical insulation and sealed sealing member, and carry out electrical insulation's lower plastic part with connection piece and top cap piece, these subassemblies are when carrying out the installation of top cap piece and utmost point post piece, in order to strictly control its gas tightness, the required precision of its installation is very high, both will carry out the pre-compaction to the sealing member, the clearance between each part of will strictly controlling again, therefore with high costs and yields are low.
In order to overcome the complex sealing and assembling process, a pole component is researched at present, and generally comprises a pole, a top cover connecting piece, an injection molding piece enclosing the pole and a sealing piece insulating the top cover connecting piece and the pole, wherein the top cover connecting piece is provided with a platform part fixed on a top cover plate and an embedding part connected with the platform part, and the embedding part is embedded into the injection molding piece. The assembly of the pole and the top cover plate can be completed only by fixing the platform part and the top cover plate, the process is simple, and complicated sealing and assembling processes are not needed. Although the sealing and assembling problems can be solved by adopting the pole assembly, the injection molding part is usually a plastic product and is usually formed by injection molding, so that external force is easily generated on the sealing part in the injection molding process to move the sealing part, and finally the sealing performance of the top cover of the secondary battery and the safety of the secondary battery are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a secondary cell utmost point post subassembly and secondary cell top cap thereof to prior art's not enough, its simple structure not only, need not loaded down with trivial details sealed and assembly process, can effectively improve utmost point post subassembly's cohesion and firm nature moreover.
In order to achieve the above object, the utility model provides an aspect provides a secondary battery utmost point post subassembly installs in secondary battery's top cap piece, include: utmost point post, coupling assembling, sealing member and enclose and locate the injection molding of utmost point post, coupling assembling has and is fixed in the first connecting piece and the fixed connection of top cap piece in first connecting piece and embedding the second connecting piece of injection molding, the sealing member is in first connecting piece with between the utmost point post, the through-hole has been seted up at the middle part of first connecting piece, first connecting piece is followed the border of through-hole is equipped with ascending boss, the sealing member enclose establish and the butt in the boss.
Compared with the prior art, the utility model discloses a secondary cell utmost point post subassembly only needs to fix first connecting piece and top cap piece, can accomplish the equipment of utmost point post and top cap piece, and its process is simple, need not loaded down with trivial details sealed and assembly process. The first connecting piece is provided with an upward boss along the edge of the through hole, the sealing piece is surrounded and abutted against the boss, the sealing piece can be prevented from being compressed when the injection molding piece is injected, and the sealing failure is caused due to overflow, so that the safety performance of the secondary battery is improved.
Preferably, the upper surface of the first connecting piece surrounds the boss indent to form an annular groove, the bottom of the sealing element is embedded into the annular groove, and the side portion of the sealing element abuts against the boss, so that the size of the pole assembly in the vertical direction is reduced, more importantly, the connection firmness between the sealing element and the connecting assembly is improved, the sealing failure caused by overflow of the sealing element in the injection molding process is prevented, and the safety performance of the secondary battery is improved.
Preferably, the second connecting piece is provided with an embedding part which is perpendicular to the first connecting piece, the embedding part is provided with a groove with an opening facing the first connecting piece and penetrating through the second connecting piece along the horizontal direction, and the injection molding piece is filled in the groove. Because the second connecting piece embedding injection molding, the second connecting piece is equipped with the opening and just link up the recess of embedding portion along the horizontal direction towards first connecting piece, and the injection molding is filled in the recess, therefore the injection molding can connect the second connecting piece in X, Y, Z three-dimensional directions, has improved the bonding strength of injection molding and second connecting piece greatly.
Preferably, the first connecting piece is provided with a connecting hole communicated with the groove, and the injection molding piece is filled in the connecting hole. The injection molding is filled in the connecting hole of the communicating groove, so that the binding force among the injection molding, the first connecting piece and the second connecting piece is greatly improved. Through the combination effect between injection molding, first connecting piece and the second connecting piece, can effectively improve injection molding and coupling assembling's connection stability, therefore can guarantee secondary battery's security when secondary battery produces pulling force to the post under the circumstances such as equipment and capability test.
Preferably, the connecting hole is a blind hole of a sphere, a cuboid or a spheroid structure, or the connecting hole is a blind hole and has at least one oblique line along the cross-sectional shape in the vertical direction. Preferably, the cross-sectional shape of the connecting hole along the vertical direction has at least one oblique line, and when the connecting hole of the structure is filled with the injection molding part, the connection between the injection molding part and the first connecting part is stronger.
The top of embedding portion to being on a parallel with first connecting piece just is close to the direction of utmost point post extends and forms the extension, the extension encloses to be located utmost point post and embedding the injection molding. The setting of extension can make extension, embedding portion and first connecting piece enclose jointly around utmost point post and establish into a cavity that can hold the injection molding, holds the injection molding in the cavity because of receiving the effort of extension, second connecting piece and first connecting piece in the equidirectional not, can promote utmost point post and injection molding in the bonding strength of three-dimensional direction.
Preferably, the orthographic projection shape of the second connecting piece on the first connecting piece is a square-shaped structure with round corners, and the grooves are arranged at the corners of the second connecting piece.
Preferably, the sealing element has a main body portion and a protruding portion disposed on a side of the main body portion away from the first connecting member, the main body portion is disposed between the first connecting member and the post, a lower portion of the main body portion is embedded in the annular groove and abuts against the boss, an upper portion of the main body portion abuts against the post, and the protruding portion abuts against the post. Through the bellying periphery in utmost point post, utmost point post is because of rocking the second connecting piece of contact coupling assembling when can avoiding moulding plastics, therefore further assurance utmost point post before moulding plastics on the insulating coupling assembling of arranging in, further improvement secondary battery utmost point post subassembly the yields. The seal may be an electrically insulating material, preferably a rubber material, made of rubber or a plastic with a certain elasticity.
Furthermore, the orthographic projection of the extension part, the pole and the body part on the first connecting piece is partially overlapped. Extension, utmost point post and this part overlap area on vertical direction can increase the tensile strength after the injection molding.
Preferably, the upper surface of the first connecting piece is further provided with a pit which is communicated with the annular groove and is used for inserting the embedding part, and the depth of the pit is smaller than that of the annular groove.
Preferably, the pole has an upper terminal portion and a lower terminal portion connected to the upper terminal portion, the lower terminal portion abuts against the sealing member, and an orthogonal projection of the lower terminal portion on the first connecting member covers an orthogonal projection of the upper terminal portion on the first connecting member. More preferably, an outer edge of the lower terminal portion may be chamfered.
Further, the embedding portion with the department of meeting of extension sets up to the chamfer, and the chamfer is favorable to the injection molding to carry out the flow of material when moulding plastics, and when establishing to the chamfer, cohesion between injection molding and the coupling assembling also can improve.
The utility model also provides a secondary battery top cap, include: the top cap piece with set up in positive pole post subassembly and negative pole post subassembly on the top cap piece, positive pole post subassembly with at least one in the negative pole post subassembly is aforementioned secondary battery utmost point post subassembly, secondary battery utmost point post subassembly passes through first connecting piece is fixed in the top cap piece.
The utility model discloses a secondary battery top cap only needs to fix secondary battery utmost point post subassembly and top cap piece, can accomplish the equipment of utmost point post and top cap piece, and its process is simple, need not loaded down with trivial details sealed and assembly process.
Drawings
Fig. 1 is a perspective view of a secondary battery top cap according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is an exploded view of the secondary battery top cover of the present invention in a first direction.
Fig. 4 is an exploded view of the secondary battery top cover of the present invention in a second direction.
Fig. 5 is a cross-sectional view of the secondary battery top cover of the present invention in the direction of a-a in fig. 2.
Fig. 6 is a cross-sectional view of the secondary battery top cover of the present invention in the direction B-B in fig. 2.
Fig. 7 is a cross-sectional view of an embodiment of a secondary battery post assembly according to the present invention.
Fig. 8 is an enlarged view of the region designated by C in fig. 5.
Fig. 9 is a variation of fig. 8.
Fig. 10 is another variation of fig. 8. Fig. 11 is an enlarged view of the first connecting member of fig. 3.
Fig. 12 is an enlarged view of the first connecting member of fig. 4.
Fig. 13 is a top view of the first connector of fig. 11.
Fig. 14 is a sectional view taken in the direction D-D of fig. 13.
Fig. 15 is a variation of fig. 14.
Fig. 16 is another variation of fig. 14.
Description of the elements
100-secondary battery top cover; 10-a top cover sheet; 110-positive mounting hole; 130-negative mounting hole; 150-explosion-proof valve mounting hole; 20-a positive post assembly; 21-positive pole column; 23-a positive first connection member; 25-positive second connection; 27-positive seal; 29-positive injection molding; 30-a negative post assembly; 31-a negative electrode post; 311-upper terminal portion; 313-lower terminal portion; 33-a first connector; 331-a through hole; 332-a boss; 333-connecting hole; 334-an annular groove; 335-pits; 336-a clamping part; 337-lower projection; 35-a second connector; 351-an embedding part; 3511-grooves; 353-an extension; 37-a seal; 371-the body portion; 373-a boss; 39-injection molding; 40-an explosion-proof valve assembly; 410-an explosion-proof valve; 430-explosion-proof valve protection sheet; 50-liquid injection hole; 60-an insulator; 610-card slot
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be noted that, in general, the secondary battery is placed vertically, one side of the secondary battery top cover, which extends out of the pole and is connected with the outside, is the upper side, the other side is the lower side, the direction between the two poles is defined as the length direction, and the up-and-down direction is defined as the thickness/height/depth direction.
The utility model discloses a secondary battery top cap can be used to the sealed casing and prepares secondary battery, and the secondary battery top cap can weld with the casing and seal. Referring to fig. 1 to 2, a secondary battery top cap 100 includes a top cap sheet 10, and a positive electrode pillar assembly 20 and a negative electrode pillar assembly 30 disposed on the top cap sheet 10, the top cap sheet 10 is provided with an explosion-proof valve assembly 40 and a liquid injection hole 50, and an insulator 60 is disposed below the top cap sheet 1 for electrically insulating the top cap sheet 1 from a cell in a case (not shown in the drawings). The insulator 60 can be snap-fit to the positive and/or negative post assemblies 20, 30. The explosion-proof valve assembly 40 includes an explosion-proof valve 410 provided on the top cover sheet 10 and an explosion-proof valve protection sheet 430 provided above the explosion-proof valve 410. The top cover plate 10 is provided with a positive electrode mounting hole 110, a negative electrode mounting hole 130 and an explosion-proof valve mounting hole 150, the explosion-proof valve 410 is fixed to the explosion-proof valve mounting hole 150, and the positive electrode column assembly 20 and the negative electrode column assembly 30 are mounted on the positive electrode mounting hole 110 and the negative electrode mounting hole 130 respectively. The positive post assembly 20 and the negative post assembly 30 may be the same or different, and both may be electrically insulated from the top cover plate 10, or the negative post 30 may be electrically insulated from the top cover plate 10, and the positive post 20 is electrically connected to the top cover plate 10. More detailed description will be made below with respect to the positive and negative electrode pillar assemblies 20 and 30, respectively.
First, the negative electrode post assembly 30 will be described in more detail, referring to fig. 3 to 10, the negative electrode post assembly 30 includes a negative electrode post 31, a connecting assembly (not shown), sealing member 37 and injection molding 39, injection molding 39 encloses in negative terminal 31, coupling assembling has the first connecting piece 33 that is fixed in top cap piece 10 and fixed connection in first connecting piece 33 top and the second connecting piece 35 of embedding injection molding 39, first connecting piece 33 and second connecting piece 35 accessible welding realize fixed connection, sealing member 37 is between first connecting piece 33 and negative terminal 31, through-hole 331 has been seted up at the middle part of first connecting piece 33, first connecting piece 33 is equipped with ascending boss 332 along the border of through-hole 331, sealing member 37 encloses and butts in boss 332, this structure can prevent that sealing member 37 from being compressed and overflowing when injection molding 39 moulds plastics and having leaded to sealed the inefficacy, thereby improve secondary battery's security performance. The through hole 331 is used for being connected of negative pole post 31 and electric core negative pole, can wear to establish through hole 331 and be connected with the negative pole of electric core if negative pole post 31, perhaps, is connected with the switching piece on the negative pole, and the switching piece is worn to establish through hole 331 and is connected with the negative pole post. The sealing member 37 has a main body 371 and a protrusion 373 disposed on a side of the main body 371 away from the first connector 33, the main body 371 is interposed between the first connector 33 and the negative electrode post 31, and the protrusion 373 surrounds the negative electrode post 31. In order to further improve the connection firmness between the sealing member 37 and the connecting assembly, fig. 8 to 9 are different from fig. 10 in that an annular groove 334 is concavely formed in the upper surface of the first connecting member 33, the lower portion of the body portion 371 of the sealing member 37 is embedded into the annular groove 334 and abuts against the boss 332, and the upper portion of the body portion 371 abuts against the negative pole post 31, that is, the sealing member 37 is clamped in the first connecting member 33, so that not only can the size of the negative pole post assembly 30 in the vertical direction be reduced, but also the connection firmness between the sealing member 37 and the connecting assembly is improved, and the sealing member 37 is prevented from overflowing during injection molding to cause sealing failure.
The negative electrode post 31 has an upper terminal portion 311 and a lower terminal portion 313 connected to the upper terminal portion 311, the upper terminal portion 311 and the lower terminal portion 313 may be welded together by two metal blocks, generally, the upper terminal portion 311 is made of an aluminum material for connection to the outside, and the lower terminal portion 313 is made of a copper material. For convenience of installation, a pole piece connecting assembly (not shown) is generally disposed below the lower terminal portion 313, and is used for connecting the lower terminal portion 313 and a negative electrode tab (not shown). Since the upper end portion 311 is partially covered with the injection-molded member 39, the injection-molded member 39 can be more firmly fitted to the upper end portion 311. The lower terminal portion 313 abuts against the sealing member 37, and an orthogonal projection of the lower terminal portion 313 on the first connector 33 covers an orthogonal projection of the upper terminal portion 311 on the first connector 33. The outer edge of the lower terminal portion 313 may be chamfered, and may be selected to be a rounded corner or a chamfered corner.
The second connector 35 has an insertion portion 351 disposed perpendicular to the first connector 33, the insertion portion 351 is provided with a groove 3511 opened toward the first connector 33 and penetrating itself in a horizontal direction, and the injection molded member 39 is filled in the groove 3511. Therefore, the injection-molded part 39 can be connected with the second connecting part 35 in X, Y, Z three-dimensional direction, and the bonding force between the injection-molded part 39 and the second connecting part 35 is greatly improved. The top of the embedding portion 351 of the second connecting member 35 extends in a direction parallel to the first connecting member 33 and close to the negative electrode terminal 31 to form an extending portion 353, and the extending portion 353 surrounds the negative electrode terminal 31 and is embedded in the injection molding 39. The arrangement of the extension portion 353 can enable the extension portion 353, the embedding portion 351 and the first connecting piece 33 to jointly enclose a cavity capable of containing the injection molding part 39 around the negative electrode pole 31, and the injection molding part 39 contained in the cavity can improve the bonding strength of the negative electrode pole 31 and the injection molding part 39 in the three-dimensional direction due to the acting forces of the extension portion 353, the embedding portion 351 and the first connecting piece 33 in different directions. The department of meeting of embedding portion 351 and extension 353 sets up to the chamfer, and the chamfer is favorable to the injection molding 39 to carry out the flow of material when moulding plastics, and when setting up to the chamfer, the cohesion between injection molding 39 and the coupling assembling also can improve. As further shown in fig. 3 and 4, the orthographic projection of the second connecting member 35 on the first connecting member 33 is a rectangular-shaped structure with rounded corners, and the second connecting member 35 is provided with 4 grooves 351 at each corner, as shown in the figure. Preferably, the groove 351 extends upward to the extension portion 353, that is, the groove 351 penetrates the embedded portion 351 in the up-down direction, so as to facilitate the inflow of the liquid injection molding member when the injection molding is performed from the vertical direction.
In order to further improve the connection reliability between the components in the negative electrode pillar assembly 30, the first connection member 33 is provided with a connection hole 333 communicating with the groove 3511, and the injection molded member 39 is filled in the connection hole 333. Through the combination effect among injection molding 39, first connecting piece 33 and the second connecting piece 35, can effectively improve injection molding 39 and coupling assembling's connection stability, therefore can guarantee secondary battery's security when secondary battery produces tensile under the circumstances such as equipment and capability test to the post. The mounting of the negative electrode tab assembly 30 to the top cover sheet 10 is accomplished by fixing the first connecting member 33 to the top cover sheet 10, typically by welding. The connection hole 333 may be a blind hole of a spherical, rectangular or spheroid structure, such as a rectangular blind hole as shown in fig. 13, or the connection hole 333 may be a blind hole having at least one oblique line in a cross-sectional shape in the vertical direction, such as a blind hole of an irregular structure having a broken line in a cross-sectional shape in the vertical direction as shown in fig. 14; as shown in fig. 15, it is a blind hole of irregular structure, and the sectional shape in the vertical direction has oblique lines. Preferably, the cross-sectional shape of the connection hole 333 in the vertical direction has at least one oblique line, and when the injection-molded part 39 is filled in the connection hole 333 of this structure, the connection between the injection-molded part 39 and the first connection member 33 is more firmly fixed. The upper surface of the first connecting member 33 is further provided with a recess 335 communicating with the annular groove 334 and into which the insertion portion 351 is inserted, and the depth of the recess 335 is smaller than that of the annular groove 334. The middle part of first connecting piece 33 is equipped with the through-hole (not shown in the figure) of intercommunication negative pole mounting hole 130 and is connected in order to supply the negative pole of negative pole post 31 and electric core to be connected, and first connecting piece 33 is equipped with joint portion 336 in the perisporium of through-hole, is equipped with joint groove 610 on the insulating part 60, thereby joint portion 336 and joint groove 610 joint realize insulating part 60 joint in negative pole post subassembly 30. Further, one side of the first connecting piece 33 facing the battery cell extends downward to form a lower protrusion 337, and the first connecting piece 33 is in snap fit with the insulating piece 60 through the lower protrusion 337.
It is further noted that, as shown in fig. 9, the orthographic projections of the extension portion 353, the negative electrode post 31 and the body portion 371 of the sealing member 37 on the first connecting member 33 are partially overlapped, and the overlapped area of the extension portion 353, the negative electrode post 31 and the body portion 371 in the vertical direction can increase the tensile strength of the injection molded part 39 after injection molding.
Next, describing the positive electrode post assembly 20 in more detail, referring to fig. 1 to 5, the positive electrode post assembly 20 and the negative electrode post assembly 30 may have the same structure, but in the use process of the secondary battery, in order to solve the problems of overcharge and puncture of the secondary battery, the positive electrode post assembly 20 and the top cover plate 10 are usually electrically conducted to form an external short circuit, so when the positive electrode post assembly 20 is prepared by injection molding, conductive particles, such as conductive carbon or conductive metal, may be added to the injection molding material, so that the positive electrode post 21 and the positive electrode second connecting member 23 in the positive electrode post assembly 20 are electrically connected through the conductive positive electrode injection molding member 29, and the positive electrode post assembly 20 and the top cover plate 10 are electrically conducted through the electrical connection between the positive electrode second connecting member 23 and the top cover plate 10. Of course, the structures of the positive and negative electrode post assemblies 20 and 30 may be different, and if the structures of the partial positive electrode sealing member 27, the positive electrode post 21, the positive electrode first connecting member 23, the positive electrode second connecting member 25 and the positive electrode injection molded member 29 are adjusted based on actual requirements, the structures of the positive and negative electrode post assemblies 20 and 30 may not be completely symmetrical.
The utility model discloses a positive post subassembly 20 and/or negative pole post subassembly 30 only need fix anodal first connecting piece 23 and/or the first connecting piece 33 of negative pole with top cap piece 1, can accomplish anodal utmost point post 21 and/or the equipment of negative pole utmost point post 31 and top cap piece 10, and its process is simple, need not loaded down with trivial details sealed and assembly process. And the middle part of the first connecting piece 33 is provided with a through hole 331, the first connecting piece 33 is provided with an upward boss 332 along the edge of the through hole 331, and the sealing element 37 is surrounded and abutted against the boss 332, so that the connection firmness between the sealing element 37 and the connecting assembly can be improved, the sealing element 37 is prevented from being compressed and overflowing to cause sealing failure when the injection molding piece 39 is used for injection molding, and the safety of the secondary battery can be improved.
It should be noted that the above-mentioned embodiments illustrate rather than limit the scope of the invention, and that modifications of various equivalent forms of the invention, which may occur to those skilled in the art after reading the present application, fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a secondary battery utmost point post subassembly, installs in secondary battery's top cap piece which characterized in that includes: utmost point post, coupling assembling, sealing member and enclose and locate the injection molding of utmost point post, coupling assembling has and is fixed in the first connecting piece and the fixed connection of top cap piece in first connecting piece and embedding the second connecting piece of injection molding, the sealing member is in first connecting piece with between the utmost point post, the through-hole has been seted up at the middle part of first connecting piece, first connecting piece is followed the border of through-hole is equipped with ascending boss, the sealing member enclose establish and the butt in the boss.
2. The secondary battery post assembly according to claim 1, wherein the upper surface of the first connecting member is recessed around the boss to form an annular groove, the bottom of the sealing member is fitted into the annular groove, and the side of the sealing member abuts against the boss.
3. The secondary battery post assembly according to claim 2, wherein the second connecting member has an insertion portion disposed perpendicular to the first connecting member, the insertion portion has a groove opened toward the first connecting member and penetrating through itself in a horizontal direction, and the injection molded member is filled in the groove.
4. The secondary battery post assembly according to claim 3, wherein the first connecting member is provided with a connecting hole communicating with the groove, and the injection molded member is filled in the connecting hole.
5. The secondary battery post assembly according to claim 4, wherein the connection hole is a blind hole of a spherical, rectangular or spheroid structure, or the connection hole is a blind hole and has at least one oblique line in a cross-sectional shape in a vertical direction.
6. The secondary battery post assembly of claim 3, wherein the top of the embedding portion extends in a direction parallel to the first connecting member and close to the post to form an extension portion, and the extension portion surrounds the post and is embedded in the injection molded part.
7. The secondary battery post assembly of claim 6, wherein the sealing member has a body portion and a protrusion disposed on a side of the body portion away from the first connector, the body portion being interposed between the first connector and the post, the protrusion being peripheral to the post.
8. The secondary battery post assembly of claim 7, wherein there is a partial overlap of the orthographic projections of the extension, the post and the body portion on the first connector.
9. The secondary battery post assembly as claimed in claim 3, wherein the upper surface of the first connecting member is further provided with a recess communicating with the annular groove and into which the insertion portion is inserted, and the recess has a depth smaller than the annular groove.
10. A secondary battery top cap, comprising: the secondary battery pole post assembly comprises a top cover plate, and a positive pole post assembly and a negative pole post assembly which are arranged on the top cover plate, and is characterized in that at least one of the positive pole post assembly and the negative pole post assembly is the secondary battery pole post assembly as claimed in any one of claims 1 to 9, and the secondary battery pole post assembly is fixed on the top cover plate through the first connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021146388.3U CN212342703U (en) | 2020-06-18 | 2020-06-18 | Secondary battery pole assembly and secondary battery top cover thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021146388.3U CN212342703U (en) | 2020-06-18 | 2020-06-18 | Secondary battery pole assembly and secondary battery top cover thereof |
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| Publication Number | Publication Date |
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| CN212342703U true CN212342703U (en) | 2021-01-12 |
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| CN202021146388.3U Active CN212342703U (en) | 2020-06-18 | 2020-06-18 | Secondary battery pole assembly and secondary battery top cover thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725533A (en) * | 2021-09-03 | 2021-11-30 | 宜春市骏智机电科技有限公司 | New energy battery apron assembly subassembly |
| CN115320007A (en) * | 2022-10-13 | 2022-11-11 | 宁波震裕科技股份有限公司 | Injection molding pole post forming method and power battery top cover structure |
| CN115411467A (en) * | 2022-10-13 | 2022-11-29 | 宁波震裕科技股份有限公司 | Manufacturing method of riveted pole and battery top cover assembly |
| CN115566332A (en) * | 2022-11-11 | 2023-01-03 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116780065A (en) * | 2023-08-21 | 2023-09-19 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| GB2623391A (en) * | 2022-10-13 | 2024-04-17 | Ningbo Zhenyu Tech Co Ltd | Power battery top cover structure |
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2020
- 2020-06-18 CN CN202021146388.3U patent/CN212342703U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725533A (en) * | 2021-09-03 | 2021-11-30 | 宜春市骏智机电科技有限公司 | New energy battery apron assembly subassembly |
| CN115320007A (en) * | 2022-10-13 | 2022-11-11 | 宁波震裕科技股份有限公司 | Injection molding pole post forming method and power battery top cover structure |
| CN115411467A (en) * | 2022-10-13 | 2022-11-29 | 宁波震裕科技股份有限公司 | Manufacturing method of riveted pole and battery top cover assembly |
| CN115320007B (en) * | 2022-10-13 | 2023-02-10 | 宁波震裕科技股份有限公司 | Injection molding pole post forming method and power battery top cover structure |
| GB2623391A (en) * | 2022-10-13 | 2024-04-17 | Ningbo Zhenyu Tech Co Ltd | Power battery top cover structure |
| CN115566332A (en) * | 2022-11-11 | 2023-01-03 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN115566332B (en) * | 2022-11-11 | 2023-04-14 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116780065A (en) * | 2023-08-21 | 2023-09-19 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116780065B (en) * | 2023-08-21 | 2024-01-16 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
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