CN218456109U

CN218456109U - Expansion glue sealing secondary battery cell top cover structure

Info

Publication number: CN218456109U
Application number: CN202221606204.6U
Authority: CN
Inventors: 张方超; 吴清泉; 赵艺惠
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2022-06-25
Filing date: 2022-06-25
Publication date: 2023-02-07
Anticipated expiration: 2032-06-25

Abstract

The utility model relates to an inflation is glued and is sealed secondary electric core top cap structure, this structure is including the top cap piece of seting up utmost point post hole and explosion-proof hole, set up at the downthehole utmost point post of utmost point post, set up explosion-proof valve protection paster on explosion-proof hole and set up the explosion-proof valve between explosion-proof hole and lower plastic, this structure is still including setting up at the spacer of top cap piece upside, setting up lower plastic and the setting sealing member in top cap piece, lower plastic, utmost point post and spacer formation space of top cap piece downside, the sealing member sealed for the inflation after the solidification is sealed. Compared with the prior art, the utility model has the advantages of the processing degree of difficulty is little.

Description

Expansion glue sealing secondary battery cell top cover structure

Technical Field

The utility model relates to a top cap structure especially relates to a sealed secondary electric core top cap structure is glued in inflation.

Background

The top cap structure of electric core guarantees the gas tightness through the sealing washer compression at present, adopts the spacer fixed, prevents to kick-back after the sealing washer compression, but current structure requires highly to the sealing washer compression, and the processing degree of difficulty is big, because the too big consequence that can lead to sealing washer life to reduce or crush the sealing washer of sealing washer compression volume, and the sealing washer compression volume undersize, the leakproofness can't be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an expansion glue seals secondary electricity core top cap structure in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides an inflation is glued and is sealed secondary electric core top cap structure, this structure is including the top cap piece of seting up utmost point post hole and explosion-proof hole, set up utmost point post in utmost point post hole, set up explosion-proof valve protection paster on explosion-proof hole and set up the explosion-proof valve between explosion-proof hole and lower plastic, this structure is still including setting up at the spacer of top cap piece upside, setting up plastic and the setting sealing member in top cap piece, lower plastic, utmost point post and spacer formation space under the top cap piece downside, the sealing member sealed for the inflation after the solidification is sealed.

The lower part of the pole is provided with an outward bulge.

The lower plastic consists of an outer supporting part and an inner compressed part.

The upper side of the lower plastic is closely attached to the lower side of the top cover plate.

The inner side of the lower plastic is tightly attached to the raised edge part of the pole by the compressed part.

The top cover plate is provided with a groove at the edge of the pole hole.

The locating plate is placed in the groove of the top cover plate.

Utmost point post upside be equipped with ascending arch, utmost point post upper portion be equipped with outside arch, the outside protruding downside in utmost point post upper portion hug closely with the spacer upside.

Compared with the prior art, the utility model discloses has with following beneficial effect:

the utility model discloses change the sealing member into the injecting glue by compression sealing washer, fill up the gap between plastic, top cap piece and the utmost point post down through the injecting glue, can finalize the design after the glue solidification, not only can realize sealing, and have the adhesion effect, the non-compression volume demand, the processing degree of difficulty is little, has solved current structure and has required height and the big problem of the processing degree of difficulty to the sealing washer compression.

Drawings

Fig. 1 is an exploded view of a conventional top cover.

Fig. 2 is a schematic structural view of an assembled conventional top cover.

Fig. 3 is a schematic sectional view of a part of a conventional top cap.

Fig. 4 is a schematic sectional view of a part of the structure before glue injection.

Fig. 5 is a schematic sectional view of a part of the structure of the present invention during glue injection.

Fig. 6 is a schematic sectional view of a part of the structure of the positioning plate of the present invention.

Fig. 7 is a schematic view of a partial structural section after the riveting of the present invention.

Reference numerals: 1. the explosion-proof valve comprises a positioning piece, 2 an explosion-proof valve protection patch, 3 an upper plastic, 4 a top cover piece, 5 an explosion-proof valve, 6 a lower plastic, 7 a sealing ring, 8 a pole, 9 an expansion sealant, 10 and a riveting position.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment of the present invention is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

The utility model provides an inflation is glued and is sealed secondary electric core top cap structure, the assembly of sealing member cancellation sealing washer 7, the mode that uses the injecting glue pours into the sealed glue 9 of inflation into in the space that forms between utmost point post 8, lower plastic 6 and the top cap piece 4, fixes through riveting utmost point post 8 after the spacer 1 is loaded onto.

This structure is including the top cap piece 4 of seting up the utmost point post hole, the setting is at utmost point post downthehole utmost point post 8 of utmost point post, the spacer 1 of setting between 4 downside of top cap piece and utmost point post 8 and hug closely in proper order and set up spacer 1 in top cap piece 4 and utmost point post 8 formation space, sealing member and lower plastic 6, the sealed glue 9 of sealing member for the inflation after the solidification, this structure is still including the explosion-proof hole of seting up at top cap piece 4 middle part, the explosion-proof valve protection paster 2 of setting on explosion-proof hole and the explosion-proof valve 5 of setting between explosion-proof hole and lower plastic 6.

The lower part of the pole 8 is provided with an outward bulge, the lower plastic 6 consists of an outer side supporting part and an inner side compressed part, the upper side of the lower plastic 6 is tightly attached to the lower side of the top cover plate 4, and the inner side compressed part of the lower plastic 6 is tightly attached to the convex edge part of the pole 8.

The top cover plate 4 is provided with a groove for placing the positioning plate 1 at the edge of the pole hole, the expansion sealant 9 is injected into a gap formed by the pole 8, the lower plastic 6 and the top cover plate 4, and the positioning plate 1 is placed in the groove of the top cover plate 4 so as to fix the expansion sealant 9.

Carry out the riveting to utmost point post 8 upside and make utmost point post 8 upside warp, riveting position 10 forms the ascending arch of utmost point post 8 upside and the outside arch in utmost point post 8 upper portion, and the outside protruding downside in utmost point post 8 upper portion is hugged closely with locating piece 1 upside.

The utility model discloses change the installation of sealing member into the injecting glue by compression seal circle 7, fill up the gap between plastic 6, top cap piece 4 and the utmost point post 8 down through the injecting glue, can stereotype after the glue solidification, and have the adhesion effect, the non-compression volume demand can also realize sealing.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an inflation is glued and is sealed secondary electric core top cap structure, this structure is including top cap piece (4) of seting up utmost point post hole and explosion-proof hole, set up utmost point post (8) in utmost point post hole, explosion-proof valve protection paster (2) of setting on explosion-proof hole and explosion-proof valve (5) of setting between explosion-proof hole and lower plastic (6), a serial communication port, this structure is still including setting up spacer (1) at top cap piece (4) upside, setting up lower plastic (6) and setting up at top cap piece (4) of top cap piece (4) downside, lower plastic (6), utmost point post (8) and spacer (1) form the sealing member in the space, the sealing member sealed (9) for the inflation after the solidification.

2. The structure of claim 1, wherein the lower part of the pole (8) is provided with an outward protrusion.

3. The structure of claim 2, wherein the lower plastic (6) comprises an outer support part and an inner compressed part.

4. The top cover structure of the secondary battery core sealed by the expansion glue of claim 3, wherein the upper side of the lower plastic (6) is closely attached to the lower side of the top cover sheet (4).

5. The structure of claim 4, wherein the compressed part of the inner side of the lower plastic (6) is tightly attached to the protruding edge of the pole (8).

6. The structure of claim 1, wherein the top cover plate (4) is provided with a groove at the edge of the pole hole.

7. The top cover structure of the expansion glue sealed secondary battery cell of claim 6, characterized in that the positioning plate (1) is placed in the groove of the top cover plate (4).

8. The structure of claim 1, wherein the upper side of the pole (8) is provided with an upward protrusion, the upper part of the pole (8) is provided with an outward protrusion, and the lower side of the outward protrusion on the upper part of the pole (8) is tightly attached to the upper side of the positioning plate (1).