CN217823027U - Power battery top cover - Google Patents
Power battery top cover Download PDFInfo
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- CN217823027U CN217823027U CN202222011748.4U CN202222011748U CN217823027U CN 217823027 U CN217823027 U CN 217823027U CN 202222011748 U CN202222011748 U CN 202222011748U CN 217823027 U CN217823027 U CN 217823027U
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- explosion
- proof
- insulating
- insulating part
- riveting
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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 discloses a power battery top cap, including the explosion-proof subassembly that is formed with the apron of explosion-proof subassembly mounting groove and locates on the explosion-proof subassembly mounting groove, still be formed with the notes liquid hole that runs through explosion-proof subassembly mounting groove diapire perpendicularly on the apron, explosion-proof unit mount is on explosion-proof subassembly mounting groove and sealed notes liquid hole. Due to the adoption of the technical scheme, the utility model discloses the structure is simpler, can reduce the cost of manufacture.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a power battery top cover.
Background
A cover plate of a battery top cover of an existing power battery is provided with a pressure relief hole and a liquid injection hole respectively, and an explosion-proof piece is arranged in the pressure relief hole. When making current battery top cap, with the welding of explosion-proof piece in the pressure release is downthehole, again with battery top cap equipment to the battery on and through annotating the liquid hole to pour into electrolyte into in the battery, use the sealing member at last to annotate the liquid hole and seal. The existing battery top cover has a complex structure and high manufacturing cost.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the technical problem that this application will be solved provides a power battery top cap that the structure is simpler.
For solving above-mentioned technical problem, the application provides a power battery top cap, including the apron that is formed with explosion-proof assembly mounting groove and locating explosion-proof assembly on the explosion-proof assembly mounting groove, still be formed with on the apron and run through perpendicularly the notes liquid hole of explosion-proof assembly mounting groove diapire, explosion-proof assembly install in on the explosion-proof assembly mounting groove and sealed annotate the liquid hole.
Further, explosion-proof subassembly includes that explosion-proof piece and ring are located annotate around the liquid hole and be located explosion-proof piece with sealing washer between the explosion-proof subassembly mounting groove diapire, the outer peripheral face of explosion-proof piece paste in the lateral wall of explosion-proof subassembly mounting groove.
Further, the explosion-proof piece includes the explosion-proof piece main part and is formed at the peripheral beaded finish of explosion-proof piece main part, the outer peripheral face of beaded finish paste in the lateral wall of explosion-proof assembly mounting groove, the sealing washer is located the beaded finish with between the diapire of explosion-proof assembly mounting groove.
Further, the diapire of explosion-proof assembly mounting groove corresponds to the position department undercut of sealing washer is formed with lower storage tank, the downside of beaded finish corresponds the position department of sealing washer is formed with storage tank in the undercut, explosion-proof piece install in when in the explosion-proof assembly mounting groove, go up the storage tank with the storage tank is used for holding to the formation of closing down the chamber that holds of sealing washer.
Furthermore, the explosion-proof assembly also comprises a protective film which is arranged on the upper side surface of the reinforcing ring and used for covering the main body of the explosion-proof sheet.
Further, a pole mounting hole is formed in the cover plate; the battery top cap still including install in utmost point post subassembly of utmost point post mounting hole department and be used for making utmost point post subassembly with the insulating part of keeping apart of apron, utmost point post subassembly include utmost point post and form in the riveting portion of side on the apron, riveting portion corresponding to the position department of utmost point post mounting hole is formed with the step hole, the macropore section in step hole runs through the last side of riveting portion, the micropore section runs through the downside of riveting portion, utmost point post is including wearing to locate the downthehole riveting post of step, locating riveting post lower extreme just is located connecting portion in the utmost point post mounting hole and locating the portion is held in the pressure of the lower extreme of connecting portion, the lower part of riveting post is located the micropore section adaptation, the upper portion of riveting post cooperates after the riveting extension in the macropore section.
Further, the insulating part comprises a first insulating part formed between the riveting part and the cover plate, and a first penetrating hole for the riveting column to penetrate through is formed in the first insulating part at a position corresponding to the pole mounting hole; the insulating part further comprises a second insulating part formed between the pole mounting hole and the connecting part and a third insulating part formed between the pressing part and the lower side surface of the cover plate, and the second insulating part is provided with a second penetrating hole for the connecting part to penetrate through.
Further, the first insulating portion comprises an insulating plate formed between the lower side face of the riveting portion and the upper side face of the cover plate and an assembling ring formed by extending upwards from the periphery of the insulating plate, the assembling ring surrounds the insulating plate to surround the insulating plate to form an assembling groove for the riveting portion to be assembled in, and the first penetrating hole penetrates through the bottom of the assembling groove to enable the pole mounting hole to be communicated with the step hole.
Furthermore, the riveting part comprises a metal riveting block buckled in the assembling groove and a press-fitting block which is formed at the periphery of the metal riveting block and is press-fitted on the upper side surface of the assembling ring.
Further, the first insulating part, the second insulating part and the third insulating part are integrally formed; or the first insulating part, the second insulating part and the third insulating part are respectively independent split type insulating parts; or the first insulating part and the second insulating part are integrally formed, and the third insulating part and the integrally formed first insulating part and second insulating part are arranged in a split mode; or the second insulating part and the third insulating part are integrally formed, and the first insulating part and the integrally formed second insulating part and third insulating part are arranged in a split mode.
Furthermore, the second insulating part is arranged around the insulating cylinder at the periphery of the connecting part, the third insulating part is an insulating sealing ring formed by extending the periphery of the lower end of the insulating cylinder outwards, and the insulating sealing ring is pressed between the pressing part and the lower side surface of the cover plate.
Further, an annular groove matched with the insulating sealing ring is formed at a position, corresponding to the insulating sealing ring, of the upper side surface of the pressing part, and the lower part of the insulating sealing ring is matched in the annular groove.
Since the technical scheme is used, the beneficial effects of the utility model are that:
will a power battery top cap install the process to the battery do: install the apron extremely on the battery, through annotating the liquid hole to inject electrolyte in the battery, then will explosion-proof component installs extremely in the explosion-proof component mounting groove, explosion-proof component is sealed annotate the liquid hole, prevent that electrolyte from spilling outside the battery from annotating the liquid hole. When the air pressure in the battery reaches a certain value, the electrolyte rushes away the explosion-proof assembly, and the pressure inside the battery is released in time. The utility model discloses in, annotate the liquid hole and still regard as the pressure release hole simultaneously, need not set up the pressure release hole respectively on the apron and annotate the liquid hole, the structure is simpler, can reduce the cost of manufacture.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a preferred embodiment of a top cover of a power battery according to the present invention;
fig. 2 is a top view of a power battery top cover according to the present invention;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of a in FIG. 3;
fig. 5 is an enlarged view of b in fig. 3.
The reference numbers in the figures include:
a cover plate-1; an explosion-proof assembly-2; a pole component-3; an insulator-4; an explosion-proof assembly mounting groove-11; a liquid injection hole-12; a pole mounting hole-13; an explosion-proof sheet-21; a seal ring-22; a protective film-23; a rupture disc main body-211; a reinforcement ring-212; a lower accommodating groove-111; an upper accommodating groove-2121; a pole-31; a riveting part-32; a stepped bore-321; a rivet post-311; a connecting portion-312; a pressure holding portion-313; riveting block-322; a press mounting block-323; a first insulating portion-41; a first through-hole-411; a second insulating portion-42; a third insulating portion-43; an insulating plate-412; mounting ring-413; ring groove-3131.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 5, an embodiment of the utility model relates to a power battery top cap includes apron 1, explosion-proof subassembly 2, utmost point post subassembly 3 and insulating part, be formed with explosion-proof subassembly mounting groove 11, annotate liquid hole 12 and utmost point post mounting hole 13 on the apron 1, explosion-proof subassembly 2 is located on the explosion-proof subassembly mounting groove 11, annotate liquid hole 12 and run through perpendicularly explosion-proof subassembly mounting groove 11's diapire and be used for to annotate in the battery, explosion-proof subassembly 2 install in on the explosion-proof subassembly mounting groove 11 and sealed annotate liquid hole 12, utmost point post subassembly 3 install in utmost point post mounting hole 13 department, the insulating part is used for making utmost point post subassembly 3 with apron 1 insulation isolation. The power battery top cap have the structure simpler and can reduce advantages such as cost of manufacture. Will a power battery top cap install extremely process on the battery be: will the apron 1 install extremely on the battery, through annotating liquid hole 12 to inject electrolyte in the battery, then will explosion-proof assembly 2 install extremely in explosion-proof assembly mounting groove 11, explosion-proof assembly 2 is sealed annotate liquid hole 12, prevent that electrolyte from annotating liquid hole 12 and leaking outside the battery. When the air pressure in the battery reaches a certain value, the electrolyte rushes away the explosion-proof assembly 2, the pressure inside the battery is timely relieved, the liquid injection hole 12 is also used as a pressure relief hole, and the pressure relief hole and the liquid injection hole are not required to be formed in the cover plate 1 respectively.
Explosion-proof subassembly 2 includes explosion-proof piece 21, sealing washer 22 and protection film 23, sealing washer 22 encircles and locates around annotating liquid hole 12, sealing washer 22 is located explosion-proof piece 21 with between the 11 diapalls of explosion-proof subassembly mounting groove, the outer peripheral face of explosion-proof piece 21 paste in explosion-proof subassembly mounting groove 11's lateral wall, protection film 23 is located explosion-proof piece 21's upside is used for the protection explosion-proof piece 21. It will explosion-proof piece 21 is installed when in the explosion-proof assembly mounting groove 11, explosion-proof piece 21 will sealing washer 22 compresses tightly explosion-proof piece 21 with between the diapire of explosion-proof assembly mounting groove 11, then with explosion-proof piece 21 the edge with the edge of explosion-proof assembly mounting groove 11 corresponds the welding, with explosion-proof piece 21 the edge with form the closed welding line of head and the tail between the edge of explosion-proof assembly mounting groove 11 to this has accomplished explosion-proof piece 21's installation promptly, just can realize right after explosion-proof piece 21 welding installation completion annotate the sealing of liquid hole 12, set up sealing washer 22, can obtain good sealed effect.
The explosion-proof piece 21 comprises an explosion-proof piece main body 211 and a reinforcing ring 212, wherein the reinforcing ring 212 is formed on the periphery of the explosion-proof piece main body 211, the peripheral surface of the reinforcing ring 212 is attached to the side wall of the explosion-proof assembly mounting groove 11, and the sealing ring 22 is located between the reinforcing ring 212 and the bottom wall of the explosion-proof assembly mounting groove 11. The sealing ring 22 is pressed between the explosion-proof piece 21 and the bottom wall of the explosion-proof assembly mounting groove 11 through the reinforcing ring 212, the strength of the reinforcing ring 212 is high, and the possibility of deformation of the explosion-proof piece 21 can be reduced when the sealing ring 22 is pressed. The peripheral edge of the reinforcing ring 212 is welded to the peripheral edge of the explosion-proof assembly mounting groove 11, and when the pressure inside the battery reaches a certain value, the part of the explosion-proof assembly 2 that is punched out is the explosion-proof sheet main body 211.
In this embodiment, a lower receiving groove 111 is formed by downward recessing the bottom wall of the mounting groove 11 corresponding to the position of the sealing ring 22, an upper receiving groove 2121 is formed by upward recessing the lower side surface of the reinforcing ring 212 corresponding to the position of the sealing ring 22 (see fig. 4), and when the explosion-proof sheet 21 is mounted in the mounting groove 11, the upper receiving groove 2121 and the lower receiving groove 111 form a receiving cavity for receiving the sealing ring 22. When the explosion-proof assembly 2 is installed in the explosion-proof assembly installation groove 11, the lower portion of the sealing ring 22 is first placed in the lower accommodation groove 111, then the explosion-proof piece 21 is installed in the explosion-proof assembly installation groove 11, and at this time, the upper portion of the sealing ring 22 enters the upper accommodation groove 2121. The lower accommodating groove 111 limits the position of the sealing ring 22, and can prevent the position of the sealing ring 22 from deviating when the explosion-proof piece 21 is placed in the explosion-proof assembly mounting groove 11. It is understood that the upper receiving groove 2121 and the lower receiving groove 111 are not essential to the present invention, for example, in some embodiments, only the lower receiving groove 111 may be provided, the lower portion of the sealing ring 22 is installed in the lower receiving groove 111, and the lower side surface of the reinforcing ring 212 is directly pressed against the upper side surface of the sealing ring 22; for example, in other embodiments, the lower face of the sealing ring 22 can be directly supported on the bottom wall of the explosion-proof assembly 2, and then the lower face of the reinforcing ring 212 can be directly pressed against the upper face of the sealing ring 22.
The protection film 23 is disposed on the upper side surface of the reinforcing ring 212, specifically, the periphery of the explosion-proof sheet 21 is fixed to the upper side surface of the reinforcing ring 212 by adhesion, and the protection film 23 is used for covering the explosion-proof sheet main body 211. The protective film 23 protects the rupture disk main body 211, and reduces the possibility that the rupture disk main body 211 is damaged by an external force other than the internal pressure of the battery. In other embodiments, the periphery of the protection film 23 may be further adhered and fixed to the cover plate 1 at a position corresponding to the edge of the explosion-proof assembly mounting groove 11, so as to cover the entire explosion-proof piece 21.
As shown in fig. 3 and 5, the pole post assembly 3 includes a pole post 31 and a riveting portion 32, the riveting portion 32 is formed on an upper side surface of the cover plate 1, a stepped hole 3221 is formed on the riveting portion 32, the stepped hole 3221 is located at a position on the riveting portion 32 corresponding to the pole post mounting hole 13, a large hole section of the stepped hole 3221 penetrates through an upper side surface of the riveting portion 32, a small hole section of the stepped hole 3221 penetrates through a lower side surface of the riveting portion 32, the pole post 31 includes a riveting post 311, a connecting portion 312 and a pressure holding portion 313, the riveting post 311 is inserted into the stepped hole 3221, the connecting portion 312 is located at a lower end of the riveting post 311, the pressure holding portion 313 is located at a lower end of the connecting portion, a lower end of the riveting post 311 is located at the small hole section, and an upper end of the riveting post 311 is riveted and extended and then fitted into the large hole section. Through rivet-pressing the rivet column 311 and fixing it in the stepped hole 3221, the cover plate 1 is clamped between the rivet portion 32 and the pressing portion 313, and the connecting portion 312 is located in the terminal mounting hole 13, so that the terminal assembly 3 can be mounted in the terminal mounting hole 13, that is, the terminal assembly 3 can be mounted on the cover plate 1, and the mounting is convenient and the mounting strength is high.
The rivet portion 32 includes a metal rivet block 322 fastened in the mounting groove and a press-fitting block 323 formed at a periphery of the metal rivet block 322, and the stepped hole 321 is formed in the rivet block 322. The riveting block 322 is made of metal, has high strength, and is not easy to damage the riveting block 322 when the upper part of the riveting column 311 is riveted and matched in the large hole section. It is understood that in other embodiments, the rivet block 322 can also be made of a non-metallic material with a relatively high strength.
The insulator 4 includes a first insulating portion 41, the first insulating portion 41 is formed between the rivet 32 and the cover plate 1, and specifically, the first insulating portion 41 separates the rivet block 322 from the cover plate 1 to insulate the rivet 32 from the cover plate 1. A first penetrating hole 411 for the riveting column 311 to penetrate is formed at the position of the first insulating part 41 corresponding to the pole mounting hole 13; the insulator 4 further includes a second insulating portion 42 and a third insulating portion 43, the second insulating portion 42 is formed between the pole mounting hole 13 and the connecting portion 312, and the second insulating portion 42 separates the connecting portion 312 from the cap plate 1 to insulate the connecting portion 312 from the cap plate 1. The third insulating portion 43 is formed between the pressure holding portion 313 and the lower surface of the cover plate 1, the third insulating portion 43 separates the pressure holding portion 313 from the cover plate 1 to insulate the pressure holding portion 313 from the cover plate 1, and the second insulating portion 42 has a second penetration hole through which the connecting portion 312 of the pole post 31 penetrates. The first insulating portion 41 insulates the caulking portion 32 from the lid plate 1, the second insulating portion 42 insulates the connecting portion 312 from the lid plate 1, and the third insulating portion 43 insulates the pressure holding portion 313 from the lid plate 1, thereby insulating and isolating the pole assembly 3 from the lid plate 1.
The first insulating portion 41 includes an insulating plate 412 and a mounting ring 413, the insulating plate 412 is formed between a lower side surface of the rivet 32 and an upper side surface of the cap plate 1, the rivet block 322 is separated from the cap plate 1 by the insulating plate 412 to insulate the rivet block 322 from the cap plate 1, the mounting ring 413 is formed to extend upward from a periphery of the insulating plate 412, the mounting ring 413 surrounds the insulating plate 412 to form a mounting groove in which the rivet 32 is mounted, the rivet block 322 of the rivet 32 is mounted in the mounting groove during mounting, and the mounting block 323 is mounted on an upper side surface of the mounting ring 413. The first penetrating hole 411 penetrates through the bottom of the assembling groove so that the pole mounting hole 13 is communicated with the step hole 321, and when the pole assembly 3 is mounted on the cover plate 1, the riveting column 311 sequentially penetrates through the pole mounting hole 13 and the first penetrating hole 411 upwards and then is located in the step hole 321. Before the rivet portion 32 is placed on the cover plate 1, the lower end of the rivet block 322 can be first fastened into the mounting groove in the previous process, so that the rivet block 322 and the first insulating portion 41 can be fastened together. In the step of attaching the pole assembly 3 to the lid plate 1, the first insulating portion 41 and the caulking portion 32 do not need to be sequentially placed on the lid plate 1, and the workload of the step can be reduced. It is understood that the first insulating portion 41 is not limited to the above-described structure, for example, in some embodiments, the first insulating portion 41 may further include only the insulating plate 412, and the insulating plate 412 is injection molded on the lower side of the rivet block 322.
In the present embodiment, the second insulating portion 42 and the third insulating portion 43 are integrally formed, and the first insulating portion 41 is provided separately from the integrally formed second insulating portion 42 and the integrally formed third insulating portion 43. That is, the insulating plate 412 and the mounting ring 413 are not connected to the first insulating portion 41 and the third insulating portion 43. It is understood that the first insulating portion, the second insulating portion 42 and the third insulating portion 43 are not limited to the connection relationship described above, for example, in some embodiments, the first insulating portion 41, the second insulating portion 42 and the third insulating portion 43 are integrally formed; for example, in other embodiments, the first insulating portion 41, the second insulating portion 42, and the third insulating portion 43 are separate split insulating portions; for example, in still other embodiments, the first insulating portion 41 and the second insulating portion 42 are integrally formed, and the third insulating portion 43 is provided separately from the integrally formed first insulating portion 41 and the second insulating portion 42.
The second insulating portion 42 is an insulating cylinder arranged around the periphery of the connecting portion 312, the second through hole is an inner hole of the insulating cylinder, and the connecting portion 312 is separated from the cover plate 1 by the insulating cylinder, so that the connecting portion 312 is insulated from the cover plate 1. The third insulating portion 43 is an insulating sealing ring formed by extending outward from the lower end periphery of the insulating cylinder, the insulating sealing ring is compressed between the pressing portion 313 and the lower side surface of the cover plate 1, and the pressing portion 313 is separated from the cover plate 1 by the insulating sealing ring, so that the pressing portion 313 and the cover plate 1 are insulated from each other. The insulating sealing ring is compressed between the pressing part 313 and the cover plate 1, and can play a sealing role between the pressing part 313 and the cover plate 1.
An annular groove 3131 fitted with the insulating seal ring is formed at a position of an upper side surface of the pressure holding portion 313 corresponding to the insulating seal ring, and a lower portion of the insulating seal ring is fitted into the annular groove 3131. Since the lower portion of the insulating seal ring is fitted into the annular groove 3131, the sealing effect can be improved.
The assembly process of the pole assembly 3 and the cover plate 1 is as follows:
firstly, a riveting block 322 on a riveting part 32 is buckled into an assembly groove on a first insulating part 41, an insulating sealing ring and an insulating cylinder sleeve are sleeved on a connecting part 312, the insulating sealing ring is contacted with a pressing part 313, the riveting part 32 and the first insulating part 41 which are buckled together are arranged on the upper side surface of a cover plate 1, so that a step hole 321 is right opposite to an electrode pole mounting hole 13, then the electrode pole 31 is arranged into the electrode pole mounting hole 13 from bottom to top, after the electrode pole 31 is arranged into the electrode pole mounting hole 13, a riveting column 311 is positioned in the step hole 321, the connecting part 312 and the insulating cylinder are positioned in the electrode pole mounting hole 13, the pressing part 313 presses the insulating sealing ring against the lower side surface of the cover plate 1 and then rivets the upper part of the riveting column 311, and the upper part of the riveting column 311 is matched in a large hole section after being riveted and extended. Thereby completing the assembly of the pole assembly 3 and the cover plate 1.
The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (12)
1. The utility model provides a power battery top cap, is including the apron that is formed with explosion-proof assembly mounting groove and locating explosion-proof assembly on the explosion-proof assembly mounting groove, its characterized in that: the cover plate is also provided with a liquid injection hole which vertically penetrates through the bottom wall of the explosion-proof component mounting groove, and the explosion-proof component is mounted on the explosion-proof component mounting groove and sealed with the liquid injection hole.
2. The power battery top cover of claim 1, wherein: the explosion-proof subassembly includes explosion-proof piece and ring locate annotate liquid hole around and be located the explosion-proof piece with sealing washer between the explosion-proof subassembly mounting groove diapire, the outer peripheral face of explosion-proof piece paste in the lateral wall of explosion-proof subassembly mounting groove.
3. A power battery top cover according to claim 2, wherein: the explosion-proof piece includes the explosion-proof piece main part and is formed at the peripheral beaded finish of explosion-proof piece main part, the outer peripheral face of beaded finish paste in the lateral wall of explosion-proof assembly mounting groove, the sealing washer is located the beaded finish with between the diapire of explosion-proof assembly mounting groove.
4. A power cell cover according to claim 3, wherein: the diapire of explosion-proof assembly mounting groove corresponds the position department undercut of sealing washer is formed with lower storage tank, the downside of beaded finish corresponds the position department undercut of sealing washer is formed with the storage tank, explosion-proof piece install in when in the explosion-proof assembly mounting groove, go up the storage tank with the storage tank is used for holding to the formation down the chamber that holds of sealing washer.
5. A power cell cover according to claim 3, wherein: the explosion-proof assembly further comprises a protective film which is arranged on the upper side face of the reinforcing ring and used for covering the main body of the explosion-proof sheet.
6. The power battery top cover of claim 1, wherein: a pole mounting hole is formed in the cover plate; the battery top cap still including install in utmost point post subassembly of utmost point post mounting hole department and be used for making utmost point post subassembly with the insulating part of keeping apart of apron, utmost point post subassembly include utmost point post and form in the riveting portion of side on the apron, riveting portion corresponding to the position department of utmost point post mounting hole is formed with the step hole, the macropore section in step hole runs through the last side of riveting portion, the micropore section runs through the downside of riveting portion, utmost point post is including wearing to locate the downthehole riveting post of step, locating riveting post lower extreme just is located connecting portion in the utmost point post mounting hole and locating the portion is held in the pressure of the lower extreme of connecting portion, the lower part of riveting post is located the micropore section adaptation, the upper portion of riveting post cooperates after the riveting extension in the macropore section.
7. The power battery top cover of claim 6, wherein: the insulating part comprises a first insulating part formed between the riveting part and the cover plate, and a first penetrating hole for the riveting column to penetrate through is formed in the position, corresponding to the pole mounting hole, of the first insulating part; the insulating part further comprises a second insulating part formed between the pole mounting hole and the connecting part and a third insulating part formed between the pressing part and the lower side surface of the cover plate, and the second insulating part is provided with a second penetrating hole for the connecting part to penetrate through.
8. The power battery top cover of claim 7, wherein: the first insulation portion comprises an insulation plate and an assembly ring, the insulation plate is formed between the lower side face of the riveting portion and the upper side face of the cover plate, the assembly ring is formed by upwards extending the periphery of the insulation plate, the assembly ring surrounds the insulation plate to surround the insulation plate to form an assembly groove for the riveting portion to be assembled in, and the first penetrating hole penetrates through the groove bottom of the assembly groove to enable the pole mounting hole to be communicated with the step hole.
9. The power battery top cover of claim 8, wherein: the riveting part comprises a metal riveting block buckled in the assembling groove and a press-fitting block which is formed on the periphery of the metal riveting block and is press-fitted on the upper side face of the assembling ring.
10. The power battery top cover of claim 7, wherein: the first insulating part, the second insulating part and the third insulating part are integrally formed; or
The first insulating part, the second insulating part and the third insulating part are respectively independent split type insulating parts; or
The first insulating part and the second insulating part are integrally formed, and the third insulating part and the integrally formed first insulating part and second insulating part are arranged in a split mode; or
The second insulating part and the third insulating part are integrally formed, and the first insulating part and the integrally formed second insulating part and the integrally formed third insulating part are arranged in a split mode.
11. The power battery top cover of claim 7, wherein: the second insulating part is located for the ring the insulating cylinder of connecting portion periphery, the third insulating part is for certainly the lower extreme periphery of insulating cylinder outwards extends the insulating seal ring that forms, insulating seal ring compressed tightly in press hold the portion with between the downside of apron.
12. A power cell cover according to claim 11, wherein: an annular groove matched with the insulating sealing ring is formed at the position, corresponding to the insulating sealing ring, of the upper side face of the pressing part, and the lower portion of the insulating sealing ring is matched in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222011748.4U CN217823027U (en) | 2022-08-02 | 2022-08-02 | Power battery top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222011748.4U CN217823027U (en) | 2022-08-02 | 2022-08-02 | Power battery top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217823027U true CN217823027U (en) | 2022-11-15 |
Family
ID=83973219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222011748.4U Active CN217823027U (en) | 2022-08-02 | 2022-08-02 | Power battery top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217823027U (en) |
-
2022
- 2022-08-02 CN CN202222011748.4U patent/CN217823027U/en active Active
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