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CN-224204200-U - Top cap subassembly and battery

CN224204200UCN 224204200 UCN224204200 UCN 224204200UCN-224204200-U

Abstract

The embodiment of the utility model discloses a top cover assembly and a battery, and relates to the field of new energy power batteries. Including top cap piece, utmost point post and connection piece, the utmost point post includes first cylinder to and the second cylinder that is connected with the one end of first cylinder, the top cap piece has the through-hole, and first cylinder is installed in the through-hole, arranges the outside of top cap piece in the second cylinder, and the one end and the connection piece electric connection of second cylinder are kept away from to first cylinder, through setting up the connection piece for the connection piece is fixed after being connected with the utmost point post, adds the welding to the riveting of utmost point post and utmost point piece in prior art, to the fixed of utmost point post, reduces utmost point piece spare part, can simplify the technology simultaneously, and can not take place the circumstances of deformation, thereby better welding with outside consumer.

Inventors

  • LI HUA
  • LIU DENGYU
  • QIN TAIPING

Assignees

  • 江苏瑞德丰精密技术股份有限公司

Dates

Publication Date
20260505
Application Date
20250428

Claims (10)

  1. 1. The top cover assembly is characterized by comprising a top cover plate, a pole column and a connecting sheet, wherein the pole column comprises a first column body and a second column body connected with one end of the first column body, the top cover plate is provided with a through hole, the first column body is arranged in the through hole, the second column body is arranged on the outer side of the top cover plate, and one end, away from the second column body, of the first column body is electrically connected with the connecting sheet.
  2. 2. The header assembly of claim 1, wherein the connecting tab has a recess on a side of the connecting tab adjacent the first post, the first post being at least partially disposed in the recess for connection with the connecting tab.
  3. 3. The header assembly of claim 2, wherein one end of the first cylinder has a first arcuate surface and the connecting tab has a second arcuate surface circumscribing the recess, the first arcuate surface and the second arcuate surface cooperating.
  4. 4. The header assembly of claim 1, wherein the connecting tab has a connecting hole, wherein the end of the first post is provided with a bump, wherein the connecting hole comprises a first hole and a second hole in communication with the first hole, wherein the sidewall of the first post is disposed in the first hole and abuts the connecting tab, and wherein the bump is disposed in the second hole and is connected to the connecting tab.
  5. 5. The header assembly of claim 4, wherein the connecting hole further comprises a third hole in communication with the second hole, the third hole for glue application at the bump and the sidewall of the second hole.
  6. 6. The header assembly of claim 1, wherein the connecting tab has a mounting hole, wherein one end of the first post is disposed in the mounting hole, and wherein one end of the first post is provided with a tab that is riveted in a riveted position and connected to the connecting tab.
  7. 7. The top cover assembly according to claim 1, further comprising a plastic member, wherein the first column is provided with a fixing groove, a first step is provided on the inner side of the top cover sheet, a second step is provided on one end of the plastic member facing away from the connecting sheet, one end of the plastic member is installed in the fixing groove, the first step is abutted to the plastic member, and the second step is abutted to the top cover sheet.
  8. 8. The top cover assembly according to claim 1, wherein a plastic part is arranged on the outer side of the circumference of the first column body, a first step is arranged on the inner side of the top cover sheet, a second step is arranged on one end, away from the connecting sheet, of the plastic part, the first step is abutted with the plastic part, and the second step is abutted with the top cover sheet.
  9. 9. The top cover assembly according to claim 1, further comprising a plastic, wherein a sink is provided on the outer side of the top cover sheet, the plastic comprises a first colloid and a second colloid connected with the first colloid, the first colloid is disposed at an angle with the second colloid, the first colloid is mounted in the sink and surrounds the second cylinder on a side of the second cylinder near the top cover sheet, and the second colloid surrounds the side wall of the second cylinder; A first positioning structure is arranged in the sinking groove, a second positioning structure is arranged on the first colloid, and the first positioning structure is matched with the second positioning structure so as to position the first colloid; the top cover assembly further comprises a sealing piece, and the sealing piece is clamped between the top cover sheet and the pole; The top cover assembly further comprises a lower plastic, and the lower plastic is clamped between the top cover piece and the connecting piece.
  10. 10. A battery comprising a housing, a cell, and the cap assembly of any one of claims 1-9, the housing enclosing with the cap assembly to form an enclosed space, the cell being secured within the enclosed space.

Description

Top cap subassembly and battery Technical Field The utility model relates to the field of new energy power batteries, in particular to a top cover assembly and a battery. Background The outside of the top cover of the existing riveting structure needs to be riveted and welded to connect the pole with the pole block, the process is complex and complicated, when the pole block exceeds a certain range size (the pole block cannot be large, and overcurrent is limited), the pole block needs to be welded after being riveted, and the pole block is deformed after welding because the deformation of the external surface of the pole block is serious, and the welding of external electric equipment or bus bar welding (bus welding) is affected. Disclosure of utility model Based on this, it is necessary to provide a top cover assembly and battery, aim at solving the outside of current riveted structure top cover and need rivet + welding process be in the same place with utmost point post and utmost point piece, the technology is complicated loaded down with trivial details, need weld after the utmost point post is riveted in the utmost point piece exceeds certain scope size (utmost point piece can not be done big, leads to the overflow to be restricted), the utmost point piece can warp after the welding, because the deformation of utmost point piece external face is serious, influence the welding of outside consumer or the technical problem of bus bar welding (bus welding). In a first aspect, the present utility model provides a top cover assembly, including a top cover plate, a pole, and a connection piece, where the pole includes a first column, and a second column connected to one end of the first column, the top cover plate has a through hole, the first column is installed in the through hole, the second column is disposed on the outer side of the top cover plate, and one end of the first column, far away from the second column, is electrically connected to the connection piece. In one embodiment, the connecting piece is provided with a groove at one side close to the first column, and the first column is at least partially arranged in the groove and connected with the connecting piece. In one embodiment, one end of the first column body has a first arc surface, the connecting piece has a second arc surface surrounding the groove, and the first arc surface and the second arc surface are matched. In one embodiment, the connecting piece is provided with a connecting hole, the end part of the first cylinder is provided with a bump, the connecting hole comprises a first hole and a second hole communicated with the first hole, the side wall of the first cylinder is arranged in the first hole and is abutted to the connecting piece, and the bump is arranged in the second hole and is connected with the connecting piece. In one embodiment, the connection hole further includes a third hole in communication with the second hole, the third hole being used to glue the bump and the sidewall of the second hole. In one embodiment, the connecting piece is provided with a mounting hole, one end of the first cylinder is arranged in the mounting hole, one end of the first cylinder is provided with a sheet body, and the sheet body is riveted at the riveting position and is connected with the connecting piece. In one embodiment, the top cover assembly further comprises a plastic part, the first column body is provided with a fixing groove, a first step is arranged on the inner side of the top cover sheet, a second step is arranged on one end, away from the connecting sheet, of the plastic part, one end of the plastic part is installed in the fixing groove, the first step is in butt joint with the plastic part, and the second step is in butt joint with the top cover sheet. In one embodiment, a plastic part is disposed on the outer side of the circumference of the first column body, a first step is disposed on the inner side of the top cover plate, a second step is disposed on one end, away from the connecting sheet, of the plastic part, the first step is abutted to the plastic part, and the second step is abutted to the top cover plate. In one embodiment, the top cover assembly further comprises a plastic, the outer side of the top cover plate is provided with a sink groove, the plastic comprises a first colloid and a second colloid connected with the first colloid, the first colloid and the second colloid are arranged at an included angle, the first colloid is installed in the sink groove and surrounds one side of the second column close to the top cover plate, and the second colloid surrounds the side wall of the second column; A first positioning structure is arranged in the sinking groove, a second positioning structure is arranged on the first colloid, and the first positioning structure is matched with the second positioning structure so as to position the first colloid; the top cover assembly further comprises a sealing piece, and the