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CN-224204196-U - Top cover assembly and battery

CN224204196UCN 224204196 UCN224204196 UCN 224204196UCN-224204196-U

Abstract

The utility model discloses a top cover assembly and a battery, wherein the top cover assembly comprises a pole, a lower ring, a sealing element, a lower insulating element, a top cover plate and an upper insulating element; the lower ring is sleeved outside the pole, the lower ring is clamped with the pole, the sealing piece is sleeved outside the pole, the lower surface of the sealing piece is abutted with the lower ring, the lower ring is arranged between the pole and the lower insulating piece, the lower ring and the lower insulating piece are abutted with the inner surface of the top cover piece, the sealing piece is arranged between the pole and the top cover piece, the upper insulating piece is arranged on the outer surface of the top cover piece and is abutted with the upper surface of the sealing piece, the upper insulating piece is clamped with the pole, and the upper insulating piece and the lower ring are matched to compress the top cover piece and the sealing piece. Through with last insulating part and lower ring respectively with the utmost point post block, prevent that the utmost point post from rotating, go up insulating part and lower ring cooperation and compress tightly top cap piece and sealing member and the utmost point post that lie in between the two, avoid the utmost point post not hard up, improve the stability and the intensity of top cap subassembly structure.

Inventors

  • LI HUA
  • QIN TAIPING

Assignees

  • 江苏瑞德丰精密技术股份有限公司

Dates

Publication Date
20260505
Application Date
20250331

Claims (10)

  1. 1. A header assembly, comprising: A pole; the lower ring is sleeved outside the pole, and the lower ring is clamped with the pole; The sealing piece is sleeved outside the pole, and the lower surface of the sealing piece is abutted with the lower ring; a lower insulator, the lower collar being disposed between the pole and the lower insulator; a top cover sheet, the lower ring and the lower insulator being in abutment with an inner surface of the top cover sheet, the seal being disposed between the pole and the top cover sheet; The upper insulating piece is arranged on the outer surface of the top cover piece, extends between the top cover piece and the pole and is abutted to the upper surface of the sealing piece, the upper insulating piece is clamped with the pole, the lower ring is at least partially positioned below the upper insulating piece, and the upper insulating piece and the lower ring are matched to compress the top cover piece and the sealing piece.
  2. 2. The top cap assembly of claim 1, wherein the lower annular sidewall is provided with a first settling tank, and the pole sidewall is provided with a first snap-in step that snaps into engagement with the first settling tank.
  3. 3. The top cap assembly of claim 1, wherein the side wall of the pole is provided with a groove recessed in the radial direction of the pole, and the upper insulator comprises a clamping portion, the clamping portion is located between the top cap piece and the pole, and the clamping portion is clamped with the groove.
  4. 4. The cap assembly of claim 3, wherein the cap piece further comprises a bent portion protruding in a radial direction of the pole, the engagement portion is located between the bent portion and the pole, and the seal outer surface is engaged with the bent portion.
  5. 5. The top cover assembly according to claim 4, wherein the outer surface of the bending part is provided with a first clamping groove, and the upper insulating piece is clamped with the first clamping groove.
  6. 6. The top cap assembly of claim 1, wherein the seal side wall is provided with a second settling tank, and the post side wall is provided with a second snap-in step that snaps into engagement with the second settling tank.
  7. 7. The header assembly of claim 1, wherein the inner surface of the top cover sheet is provided with a third settling tank, the lower annular ring being received in the third settling tank, the lower insulator being provided with a third engagement step, the third engagement step being engaged with the third settling tank.
  8. 8. The header assembly of claim 1, wherein the lower insulator is integrally formed with the lower collar.
  9. 9. The header assembly of claim 1, wherein the lower collar is an encapsulated insulator or a snap insulator and the upper insulator is an encapsulated insulator or a snap insulator.
  10. 10. A battery comprising the cap assembly according to any one of claims 1 to 9.

Description

Top cover assembly and battery Technical Field The utility model relates to the field of power batteries and energy storage batteries, in particular to a top cover assembly and a battery. Background The lithium battery is widely used in the technical fields of power batteries, energy storage batteries and the like, and the power battery provides a power source for tools, and is usually used for providing power for electric automobiles, electric trains, electric bicycles, golf carts and the like, and is a core component of new energy automobiles and the like. Energy storage batteries are commonly used in power stations, portable power sources, communication stations, etc. for household energy storage, solar and wind power generation equipment, and in batteries for renewable energy storage. The application scenes of the two are different, and the performances and designs of the two are different. The lithium battery comprises a top cover assembly, the top cover assembly generally comprises a plurality of parts such as an upper plastic part, a top cover plate, a lower plastic part, a sealing part, a pole and the like, and the problem that the pole is loose easily occurs after the top cover assembly is assembled, so that the top cover assembly is poor in stability. Therefore, it is desirable to provide a top cap assembly and a battery that prevent the pole from loosening and improve the structural stability of the top cap assembly. Disclosure of utility model The present utility model has been made to overcome the above-mentioned drawbacks of the prior art, and an object of the present utility model is to provide a top cap assembly, comprising: A pole; the lower ring is sleeved outside the pole, and the lower ring is clamped with the pole; The sealing piece is sleeved outside the pole, and the lower surface of the sealing piece is abutted with the lower ring; a lower insulator, the lower collar being disposed between the pole and the lower insulator; a top cover sheet, the lower ring and the lower insulator being in abutment with an inner surface of the top cover sheet, the seal being disposed between the pole and the top cover sheet; The upper insulating piece is arranged on the outer surface of the top cover piece, extends between the top cover piece and the pole and is abutted to the upper surface of the sealing piece, the upper insulating piece is clamped with the pole, the lower ring is at least partially positioned below the upper insulating piece, and the upper insulating piece and the lower ring are matched to compress the top cover piece and the sealing piece. The utility model also discloses a battery, which comprises the top cover assembly. The implementation of the embodiment of the utility model has the following beneficial effects: According to the utility model, the upper insulating part and the lower ring are respectively clamped with the pole, so that the pole is prevented from rotating, the upper insulating part and the lower ring are matched and pressed to tightly press the top cover plate and the sealing part which are positioned between the upper insulating part and the lower ring, and the pole, so that the looseness of the pole is avoided, and the stability and the strength of the top cover assembly structure are improved. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein: FIG. 1 is a schematic view of a header assembly provided by the present utility model; FIG. 2 is a cross-sectional view taken along the direction A-A' in FIG. 1; FIG. 3 is a schematic view of the lower ring of the cap assembly according to the present utility model; FIG. 4 is a schematic view of a pole in a cap assembly according to the present utility model; FIG. 5 is a further schematic view of a header assembly provided by the present utility model; FIG. 6 is a cross-sectional view taken in the direction B-B' of FIG. 5; FIG. 7 is a schematic view of a bending portion of a top cover sheet in a top cover assembly according to the present utility model; fig. 8 is a schematic view of a seal in a cap assembly according to the present utility model. 1-Pole, 11-first clamping step, 12-groove, 13-second clamping step, 14-press riveting turn-down part, 2-lower ring, 21-first settling tank, 3-sealing piece, 31-second settling tank, 4-lower insulating piece, 41-third clamping step, 5-top cover piece, 51-bending part, 511-first clamping groove, 52-third settling tank, 6-upper insulating piece and 61-clamping part. Detailed Description The following description of the embodiments of the present utility