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CN-224204199-U - Top cap subassembly, battery cell and consumer

CN224204199UCN 224204199 UCN224204199 UCN 224204199UCN-224204199-U

Abstract

The utility model belongs to the technical field of batteries, and discloses a top cover assembly, a single battery and electric equipment. The top cover assembly comprises a cover plate body and a pole assembly, wherein the size of the cover plate body along the first direction is larger than that of the cover plate body along the second direction, the first direction is perpendicular to the second direction, a pole mounting hole is formed in the cover plate body, the size of the pole mounting hole along the first direction is larger than that of the pole mounting hole along the second direction, a riveting flanging is upwards convexly arranged at a top port of the pole mounting hole, the riveting flanging is provided with a riveting part capable of extending towards the center of the pole mounting hole, the pole assembly is mounted in the pole mounting hole in a matched mode, and the bottom wall of the riveting part is abutted to the top wall of the pole assembly. The structure of the top cover assembly is simplified while the single battery using the top cover assembly has the function of quick charge and discharge, so that the manufacturing cost of the top cover assembly is reduced.

Inventors

  • LI JIANJU
  • QIU YISHENG
  • LI YELIANG

Assignees

  • 深圳市科达利实业股份有限公司

Dates

Publication Date
20260505
Application Date
20250424

Claims (10)

  1. 1. Top cap subassembly, its characterized in that includes: The cover plate comprises a cover plate body (100), wherein the size of the cover plate body (100) along a first direction is larger than the size of the cover plate body (100) along a second direction, and the first direction is perpendicular to the second direction, a pole mounting hole (110) is formed in the cover plate body (100), the size of the pole mounting hole (110) along the first direction is larger than the size of the pole mounting hole (110) along the second direction, a riveting flanging (120) is upwards convexly arranged at a top port of the pole mounting hole (110), and the riveting flanging (120) is provided with a riveting part (130) capable of extending towards the central position of the pole mounting hole (110); The pole assembly (200), the pole assembly (200) is installed in the pole installation hole (110) in a matching mode, and the bottom wall of the riveting part (130) is abutted to the top wall of the pole assembly (200).
  2. 2. The top cap assembly according to claim 1, wherein a bottom port of the pole mounting hole (110) is provided with a fixing step (140) protruding toward a center position of the pole mounting hole (110), and at least a portion of the pole assembly (200) is sandwiched between the caulking portion (130) and the fixing step (140).
  3. 3. The top cap assembly according to claim 2, wherein the circumferential outer wall of the pole assembly (200) is convexly provided with an annular fixing boss (210), the annular fixing boss (210) being sandwiched between the caulking portion (130) and the fixing step (140).
  4. 4. The top cap assembly of claim 3, wherein an upper plastic member (220) is sandwiched between the pole assembly (200) and the pole mounting hole (110).
  5. 5. The top cap assembly of claim 4, wherein the upper plastic part (220) comprises a first portion (221), a second portion (222), a third portion (223) and a fourth portion (224) which are integrally formed from top to bottom, wherein the first portion (221) is clamped between a circumferential inner wall of the rivet portion (130) and a circumferential outer wall of the pole assembly (200), the second portion (222) is clamped between a bottom wall of the rivet portion (130) and a top wall of the annular fixing boss (210), the third portion (223) is clamped between a circumferential inner wall of the pole mounting hole (110) and a circumferential outer wall of the annular fixing boss (210), and the fourth portion (224) is clamped between a bottom wall of the annular fixing boss (210) and a top wall of the fixing step (140).
  6. 6. The top cap assembly according to claim 5, wherein a sealing ring (230) is further clamped between the pole assembly (200) and the fixing step (140), the sealing ring (230) comprises a first sealing portion (231) and a second sealing portion (232) which are integrally formed, the first sealing portion (231) is clamped between the bottom wall of the annular fixing boss (210) and the top wall of the fixing step (140), and the second sealing portion (232) is clamped between the circumferential outer wall of the pole assembly (200) and the circumferential inner wall of the fixing step (140).
  7. 7. The top cap assembly according to any one of claims 1 to 6, wherein the caulking collar (120) is looped around a top port of the pole mounting hole (110), and the caulking portions (130) are provided in plurality at intervals in a circumferential direction.
  8. 8. The top cover assembly according to any one of claims 1-6, wherein a lower plastic part (300) is arranged at the bottom of the cover plate body (100), and the lower plastic part (300) is provided with an avoidance hole (310) for avoiding the pole assembly (200).
  9. 9. A unit cell comprising the cap assembly according to any one of claims 1 to 8.
  10. 10. A powered device comprising the battery cell of claim 9.

Description

Top cap subassembly, battery cell and consumer Technical Field The utility model relates to the technical field of batteries, in particular to a top cover assembly, a single battery and electric equipment. Background The cell cover plate and the pole of the power battery are generally of injection molding structures or riveting structures, but the injection molding structures are used for guaranteeing the structural strength between the cover plate and the pole, the design size of the plastic part is large, and the pole of the riveting structures is generally of cylindrical design due to the uniformity of the riveting process. When the cover plate with the two structures is applied to a small-size battery, the size of the pole overcurrent part is smaller, and the requirements of higher and higher capacity and faster charging of the battery core cannot be met. At present, the capacity of the battery is larger and larger, the charging and discharging speed is also faster and faster, the current overflow requirement of the electrode column of the battery cover plate is higher and higher, the current overflow is influenced by the electrode column, particularly the electrode column area is large, the heat is not easy to generate when the current overflow of the electrode column is increased, and the heat is easy to generate otherwise, the performance of the battery is influenced even the safety of the battery is influenced when the heat generation quantity of the electrode column of the battery is increased. The cover plate with large width is convenient for arranging large round polar columns or polar columns with other shapes, but the cover plate with narrower width can only be arranged in a long strip shape to enlarge the polar column area, however, the corresponding riveting technology needs to arrange larger riveting blocks to fix the battery core cover plate and the polar columns, so that the manufacturing cost of the battery core is increased. Therefore, it is needed to provide a novel top cover assembly, a single battery and electric equipment, so as to solve the above technical problems in the prior art. Disclosure of utility model The utility model aims to provide a top cover assembly which can realize the quick-charging and quick-discharging functions of a strip-shaped cover plate body and has the advantages of simple structure and low manufacturing cost. To achieve the purpose, the utility model adopts the following technical scheme: The top cover assembly comprises a cover plate body and a pole assembly, wherein the size of the cover plate body along a first direction is larger than that of the cover plate body along a second direction, the first direction is perpendicular to the second direction, a pole mounting hole is formed in the cover plate body, the size of the pole mounting hole along the first direction is larger than that of the pole mounting hole along the second direction, a riveting flanging is arranged on the top port of the pole mounting hole in an upward protruding mode, the riveting flanging is provided with a riveting portion capable of extending towards the center of the pole mounting hole, the pole assembly is mounted in the pole mounting hole in a matched mode, and the bottom wall of the riveting portion is abutted to the top wall of the pole assembly. Optionally, a fixing step is protruding from a bottom port of the pole mounting hole toward a center of the pole mounting hole, and at least a portion of the pole assembly is sandwiched between the rivet portion and the fixing step. Optionally, an annular fixing boss is convexly arranged on the circumferential outer wall of the pole assembly, and the annular fixing boss is clamped between the riveting part and the fixing step. Optionally, an upper plastic part is sandwiched between the pole assembly and the pole mounting hole. Optionally, the upper plastic part includes a first portion, a second portion, a third portion and a fourth portion integrally formed from top to bottom, where the first portion is sandwiched between a circumferential inner wall of the rivet portion and a circumferential outer wall of the pole assembly, the second portion is sandwiched between a bottom wall of the rivet portion and a top wall of the annular fixing boss, the third portion is sandwiched between a circumferential inner wall of the pole mounting hole and a circumferential outer wall of the annular fixing boss, and the fourth portion is sandwiched between a bottom wall of the annular fixing boss and a top wall of the fixing step. Optionally, a sealing ring is further clamped between the pole assembly and the fixed step, the sealing ring includes a first sealing portion and a second sealing portion, the first sealing portion is clamped between the bottom wall of the annular fixed boss and the top wall of the fixed step, and the second sealing portion is clamped between the circumferential outer wall of the pole assembly and the circumferential inn