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CN-224217666-U - Integrated cover plate for energy storage battery pack

CN224217666UCN 224217666 UCN224217666 UCN 224217666UCN-224217666-U

Abstract

The utility model relates to the technical field of energy storage battery packs, in particular to an integrated cover plate for an energy storage battery pack, which comprises an upper pressing film, a lower pressing film, a sampling assembly, a connecting aluminum bar and an output electrode assembly, wherein the sampling assembly, the connecting aluminum bar and the output electrode assembly are arranged between the upper pressing film and the lower pressing film, the connecting aluminum bar is distributed on the front side and the rear side of the sampling assembly, the output electrode assembly is arranged at the left end and the right end of the lower pressing film, the integrated cover plate also comprises two positioning plates and positioning blocks, the positioning plates are arranged on the top surface of the lower pressing film and are respectively arranged at the middle part and the right part of the lower pressing film, the positioning blocks are respectively arranged at the middle part and the right part of the sampling assembly, a plurality of first convex parts are formed on the connecting aluminum bar, positioning macropores corresponding to the first convex parts are formed on the positioning plates, positioning columns are arranged on the middle part of the positioning plates, and positioning pores corresponding to the positioning columns are formed on the positioning blocks.

Inventors

  • TAN WEI
  • MEI CHUXUAN

Assignees

  • 江苏日盈电子股份有限公司

Dates

Publication Date
20260508
Application Date
20250321

Claims (10)

  1. 1. The integrated cover plate for the energy storage battery pack comprises an upper pressing film (100), a lower pressing film (200), a sampling assembly (300) arranged between the upper pressing film (100) and the lower pressing film (200), a connecting aluminum bar (400) and an output electrode assembly (500), wherein the connecting aluminum bar (400) is distributed on the front side and the rear side of the sampling assembly (300), the output electrode assembly (500) is arranged at the left end and the right end of the lower pressing film (200), the integrated cover plate is characterized by further comprising two positioning plates (600) arranged on the top surface of the lower pressing film (200) and positioning blocks (700) arranged on the sampling assembly (300), the two positioning plates (600) are respectively arranged at the middle part and the right part of the lower pressing film (200), the two positioning blocks (700) are respectively arranged at the middle part and the right part of the sampling assembly (300), a plurality of first convex parts (410) are formed on the connecting aluminum bar (400), the positioning plates (600) are provided with large holes (610) corresponding to the first convex parts (410), and the positioning plates (600) are provided with positioning columns (800) corresponding to the positioning columns (800).
  2. 2. The integrated cover plate for an energy storage battery pack according to claim 1, wherein the sampling assembly (300) comprises a sampling line plate (310), a tin sheet terminal (320), an NTC (330) and a connector (340), the sampling line plate (310) extends along the length direction of the pressing film (200), the tin sheet terminal (320) and the NTC (330) are both mounted on the sampling line plate (310) and connected with a connecting aluminum bar (400), and the connector (340) is mounted at the left end of the sampling line plate (310).
  3. 3. The integrated cover plate for an energy storage battery pack according to claim 2, wherein a fixing bracket (350) is arranged at the left end of the pressing film (200), and the connector (340) is arranged in the fixing bracket (350).
  4. 4. The integrated cover plate for an energy storage battery pack according to claim 2, wherein the left end of the sampling line plate (310) is connected with the connector (340) through a crimp terminal or a PCB.
  5. 5. The integrated cover plate for an energy storage battery pack according to claim 4, wherein the PCB comprises a conductive layer (910), an insulating layer (920) and a heat dissipation layer (930), wherein the insulating layer (920) is arranged between the conductive layer (910) and the heat dissipation layer (930), and carbon blocks (940) are embedded in grooves of the heat dissipation layer (930).
  6. 6. The integrated cover plate for the energy storage battery pack according to claim 1, wherein the output electrode assembly (500) comprises a mounting bracket (510) and an aluminum electrode plate (520), the mounting bracket (510) is arranged at the end part of the lower pressing film (200), the aluminum electrode plate (520) is arranged on the mounting bracket (510), a bolt (530) is arranged in the middle of the mounting bracket (510), a flange (540) is arranged on the outer side of the mounting bracket (510), and a jack (521) corresponding to the bolt (530) is formed in the aluminum electrode plate (520).
  7. 7. The integrated cover plate for an energy storage battery pack according to claim 6, wherein the aluminum electrode plate (520) is formed with a second protrusion (522).
  8. 8. The integrated cover plate for an energy storage battery pack according to claim 6, wherein the aluminum electrode plate (520) is partially plated with nickel or a nickel-plated sheet.
  9. 9. The integrated cover plate for an energy storage battery pack according to claim 1, wherein a heat conducting pad (1000) is arranged on the bottom surface of the pressing film (200).
  10. 10. The integrated cover plate for an energy storage battery pack according to claim 7, wherein the upper pressing film (100) and the lower pressing film (200) are respectively provided with a through hole (110), and the through holes (110) correspond to the first convex parts (410) and the second convex parts (522).

Description

Integrated cover plate for energy storage battery pack Technical Field The utility model relates to the technical field of energy storage battery packs, in particular to an integrated cover plate for an energy storage battery pack. Background The integrated apron of tradition mainly adopts injection molding board or plastic uptake board, aluminium bar and pencil, and batch manufacturing cost is high, and has pencil wearing and tearing short circuit risk. In order to solve the problem of harness abrasion, the existing integrated cover plate adopts an injection molding plate or a plastic sucking plate, aluminum bars and FPC, but has the defects that (1) the injection molding plate or the plastic sucking plate needs a certain thickness and characteristics for fixing the aluminum bars and the FPC, the space utilization rate is low, the effect of reducing the height of a battery pack is limited, and (2) the manufacturing cost of the injection molding plate or the plastic sucking plate is high, and the self weight is large. At present, the integrated cover plate adopts a double-layer film pressing technology to integrate FPC, aluminum bars and the like through hot pressing, so that the thickness and the weight of the integrated cover plate are reduced, and the height of a battery pack is reduced. Because FPC and aluminium bar do not carry out relative positioning, lead to placing or hot pressing in-process FPC and aluminium bar probably take place relative displacement, and then influence the stable connection between FPC and the aluminium bar to influence product performance and quality. Disclosure of utility model The utility model aims to solve the technical problems of overcoming the defects in the prior art and providing the integrated cover plate for the energy storage battery pack, which has the advantages of simple structural design and high integration level, and is used for positioning a sampling assembly and a connecting aluminum bar relatively. The integrated cover plate for the energy storage battery pack comprises an upper pressing film, a lower pressing film, a sampling assembly, a connecting aluminum bar, an output electrode assembly, positioning plates, two positioning plates and two positioning blocks, wherein the sampling assembly is arranged between the upper pressing film and the lower pressing film, the connecting aluminum bar is distributed on the front side and the rear side of the sampling assembly, the output electrode assembly is arranged at the left end and the right end of the lower pressing film, the positioning plates are arranged on the top surface of the lower pressing film and are respectively arranged at the middle part and the right part of the lower pressing film, the two positioning blocks are respectively arranged at the middle part and the right part of the sampling assembly, a plurality of first protruding parts are formed on the connecting aluminum bar, positioning macropores corresponding to the first protruding parts are formed on the positioning plates, the middle part of the positioning plates is provided with positioning columns, and the positioning blocks are provided with positioning pores corresponding to the positioning columns. Further, the sampling assembly comprises a sampling line plate, a tin sheet terminal, an NTC and a connector, wherein the sampling line plate extends along the length direction of the lower pressing film, the tin sheet terminal and the NTC are both installed on the sampling line plate and connected with a connecting aluminum bar, and the connector is installed at the left end of the sampling line plate. Further, a fixing bracket is arranged at the left end of the lower pressing film, and the connector is arranged in the fixing bracket. Further, the left end of the sampling line board is connected with the connector through a crimping terminal or a PCB board. Further, the PCB comprises a conducting layer, an insulating layer and a heat dissipation layer, wherein the insulating layer is arranged between the conducting layer and the heat dissipation layer, and a carbon block is embedded in a groove of the heat dissipation layer. Further, the output pole assembly comprises a mounting bracket and an aluminum pole plate, the mounting bracket is arranged at the end part of the lower pressing film, the aluminum pole plate is arranged on the mounting bracket, a bolt is arranged in the middle of the mounting bracket, a flange is arranged on the outer side of the mounting bracket, and a jack corresponding to the bolt is formed in the aluminum pole plate. Further, a second convex part is formed on the aluminum polar plate. Further, the aluminum polar plate is partially plated with nickel or is pasted with a nickel sheet. Further, a heat conducting pad is arranged on the bottom surface of the lower pressing film. Further, through holes are formed in the upper pressing film and the lower pressing film, and the through holes correspond to the first prot