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CN-121983761-A - Conductive terminal, manufacturing method thereof and battery module

CN121983761ACN 121983761 ACN121983761 ACN 121983761ACN-121983761-A

Abstract

The application relates to the technical field of new energy, in particular to a conductive terminal, a manufacturing method thereof and a battery module. The conductive terminal includes a first metal sheet welded to a conductive bar of the battery module, a second metal sheet spaced apart from the first nickel sheet and integrally having a crimp claw for pressure-contact connection with a wire, and an overcurrent protection member crossing a space between the first metal sheet and the second metal sheet and surface-mounted to the first metal sheet and the second metal sheet, the first nickel sheet and the second nickel sheet being electrically connected via the overcurrent protection member.

Inventors

  • GONG XIAODONG

Assignees

  • 苏州市美格尔精密机械科技有限公司

Dates

Publication Date
20260505
Application Date
20251216

Claims (10)

  1. 1. A conductive terminal, comprising: A first metal sheet welded to the conductive bars of the battery module; a second metal sheet spaced apart from the first nickel sheet and integrally having a crimp claw for pressure-bonding connection with a wire; And the overcurrent protection element spans the interval between the first metal sheet and the second metal sheet and is attached to the first metal sheet and the second metal sheet in a surface mounting mode, and the first nickel sheet and the second nickel sheet are electrically connected through the overcurrent protection element.
  2. 2. The conductive terminal of claim 1, wherein the first metal sheet is a nickel sheet.
  3. 3. The conductive terminal of claim 1, further comprising: An insulating plate that spans a space between the first metal sheet and the second metal sheet and is attached to the first metal sheet and the second metal sheet; The insulating plate and the overcurrent protection element are respectively arranged on two opposite sides of the first metal sheet and the second metal sheet.
  4. 4. A conductive terminal according to claim 3, wherein the insulating plate completely covers a space between the first metal sheet and the second metal sheet; The conductive terminal further includes a cured insulating seal surrounding the overcurrent protection element, the insulating seal being connected to the first metal sheet, the second metal sheet, and the insulating plate.
  5. 5. The conductive terminal according to claim 3 or 4, wherein the first metal sheet has a first surface and a second surface opposite to each other, a first region for welding to the conductive row, a second region for attaching the insulating plate, a bent portion connecting the first region and the second distinction, the overcurrent protection element being located on the first surface side, the insulating plate being located on the second surface side; wherein the bent portion is configured to bias the second surface of the first section toward the first surface side with respect to the second surface of the second section.
  6. 6. A battery module including a plurality of battery cells and a conductive strip connected to the battery cells, characterized by further comprising: the conductive terminal of any one of claims 1 to 5, the first metal sheet being welded to the conductive strip by laser welding; A wire crimped to the crimp jaws.
  7. 7. A method of manufacturing a conductive terminal, comprising: Stamping a closed elongated hole in a motherboard of conductive metal, the motherboard having oppositely disposed third and fourth surfaces, the elongated hole dividing the motherboard into a first portion and a second portion that are located on either side of the width of the elongated hole, respectively; attaching an overcurrent protection element to a third surface of the motherboard in a surface mounting manner, attaching the overcurrent protection element to span the width of the elongated hole, and electrically connecting the first portion and the second portion; And blanking out mother plate materials on two sides of the length of the long hole, so that the long hole is formed into a through seam with two open ends.
  8. 8. The method as recited in claim 7, further comprising: a crimp jaw for crimping connection with a wire is punched on the motherboard, the crimp jaw being located at the second portion.
  9. 9. The method of claim 7, further comprising, after punching the closed elongated hole in the motherboard of conductive metal: An insulating plate is attached to the fourth surface of the motherboard, and the insulating plate is attached so as to span the space between the first metal sheet and the second metal sheet.
  10. 10. The method of claim 9, wherein the master is an elongated metal strip, and the method is performed by a processing apparatus including a first processing station, a second processing station, a third processing station, and a fourth processing station disposed in this order on a conveyance path of the master during intermittently conveying the master along a length direction thereof; the first processing station is used for punching the closed long hole on the motherboard; The second processing station is used for attaching the overcurrent protection element to the third surface of the motherboard in a surface mounting manner; the third processing station is used for attaching the insulating plate to the fourth surface of the motherboard; the fourth processing station is used for blanking and removing mother board materials on two sides of the length of the long hole so that the long hole is formed into a through seam with two open ends; And when the mother board is stopped, the first processing station, the second processing station, the third processing station and the fourth processing station respectively process different sections of the mother board which are arranged along the length direction.

Description

Conductive terminal, manufacturing method thereof and battery module Technical Field The application relates to the technical field of new energy, in particular to a conductive terminal, a manufacturing method thereof and a battery module. Background Patent document CN119890504a (hereinafter referred to as patent document 1) discloses a conductive terminal (battery signal acquisition terminal) that can acquire a voltage signal of a battery module and can be used to transmit a current to perform equalization processing on battery energy. However, the conductive terminal in patent document 1 has a complicated structure and high manufacturing cost, and is difficult to automatically connect the terminal and the wire because an external wire is required to be connected by soldering when in use. Disclosure of Invention The application aims to solve at least one of the technical problems, and provides a conductive terminal, a manufacturing method thereof and a battery module. In a first aspect, a conductive terminal is provided, including: A first metal sheet welded to the conductive bars of the battery module; a second metal sheet spaced apart from the first nickel sheet and integrally having a crimp claw for pressure-bonding connection with a wire; And the overcurrent protection element spans the interval between the first metal sheet and the second metal sheet and is attached to the first metal sheet and the second metal sheet in a surface mounting mode, and the first nickel sheet and the second nickel sheet are electrically connected through the overcurrent protection element. In some possible embodiments, the first metal sheet is a nickel sheet. In some possible embodiments, the method further comprises: An insulating plate that spans a space between the first metal sheet and the second metal sheet and is attached to the first metal sheet and the second metal sheet; The insulating plate and the overcurrent protection element are respectively arranged on two opposite sides of the first metal sheet and the second metal sheet. In some possible embodiments, the insulating plate completely covers the space between the first metal sheet and the second metal sheet; The conductive terminal further includes a cured insulating seal surrounding the overcurrent protection element, the insulating seal being connected to the first metal sheet, the second metal sheet, and the insulating plate. In some possible embodiments, the first metal sheet has a first surface and a second surface opposite to each other, a first region for welding to the conductive strip, a second region to which the insulating plate is attached, a bent portion connecting the first region and the second distinction, the overcurrent protection element is located on the first surface side, and the insulating plate is located on the second surface side; wherein the bent portion is configured to bias the second surface of the first section toward the first surface side with respect to the second surface of the second section. In a second aspect, a battery module is provided, including a plurality of battery cells and be connected to the electric conduction row of battery cell, characterized in that still includes: The conductive terminal of the first aspect, the first metal sheet being welded to the conductive bar by laser welding; A wire crimped to the crimp jaws. In a third aspect, a method for manufacturing a conductive terminal is provided, including: Stamping a closed elongated hole in a motherboard of conductive metal, the motherboard having oppositely disposed third and fourth surfaces, the elongated hole dividing the motherboard into a first portion and a second portion that are located on either side of the width of the elongated hole, respectively; attaching an overcurrent protection element to a third surface of the motherboard in a surface mounting manner, attaching the overcurrent protection element to span the width of the elongated hole, and electrically connecting the first portion and the second portion; And blanking out mother plate materials on two sides of the length of the long hole, so that the long hole is formed into a through seam with two open ends. In some possible embodiments, the method further comprises: a crimp jaw for crimping connection with a wire is punched on the motherboard, the crimp jaw being located at the second portion. In some possible embodiments, after punching the closed elongated hole in the motherboard made of conductive metal, the method further comprises: An insulating plate is attached to the fourth surface of the motherboard, and the insulating plate is attached so as to span the space between the first metal sheet and the second metal sheet. In some possible embodiments, the master is an elongated metal strip, and the method is performed by a processing apparatus including a first processing station, a second processing station, a third processing station, and a fourth processing station sequentially disp