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CN-224217515-U - Support and battery pack

CN224217515UCN 224217515 UCN224217515 UCN 224217515UCN-224217515-U

Abstract

The utility model discloses a bracket and a battery pack, which comprise a base body, a limiting part and a plurality of hot riveting columns, wherein two first channels and two first openings are formed at intervals, the first openings penetrate through one side of the base body along the thickness direction of the base body, the first channels are communicated with the first openings in a one-to-one correspondence manner, the limiting part is arranged on the base body, the limiting part is formed with a second channel and two second openings, the second channel is positioned between the two first channels, the second channel is communicated with the first channels through the second openings, the hot riveting columns are respectively arranged in the two first channels, and the second openings are arranged towards the hot riveting columns. The bracket and the battery pack aim at solving the technical problem that a circuit board is easy to shift in the assembly and hot riveting processes.

Inventors

  • LI CAIYU

Assignees

  • 惠州亿纬锂能股份有限公司

Dates

Publication Date
20260508
Application Date
20250422

Claims (11)

  1. 1. A stent, comprising: The substrate is provided with two first channels and two first openings which are arranged at intervals, the first openings penetrate through one side of the substrate along the thickness direction of the substrate, and the first channels are communicated with the first openings in a one-to-one correspondence manner; The limiting part is arranged on the base body, a second channel and two second openings are formed in the limiting part, the second channel is positioned between the two first channels, and the second channel is communicated with the first channels through the second openings; The hot riveting columns are respectively arranged in the two first channels, and the second openings face the hot riveting columns.
  2. 2. The bracket of claim 1, wherein the bracket comprises a connecting portion disposed in the second channel to separate the second channel to form a first sub-channel and a second sub-channel, one end of the connecting portion is connected to the base body, the other end is connected to the limiting portion, the first sub-channel is communicated with the adjacent first channel through one of the second openings, and the second sub-channel is communicated with the adjacent first channel through the other of the second openings.
  3. 3. The bracket according to claim 2, wherein the stopper portion is formed with a third opening, the third opening being opposite in orientation to the first opening, and the first sub-passage and the second sub-passage each communicate with the third opening.
  4. 4. The bracket according to claim 1, wherein an edge of the stopper portion for forming the second opening is provided with a chamfer.
  5. 5. The bracket of claim 1, wherein the number of the rivet stems is two, and each rivet stem is provided at a middle portion of the first passage in a length direction thereof.
  6. 6. The bracket of claim 1, wherein the rivet stem protrudes through the first opening in a height direction thereof beyond the first channel.
  7. 7. The bracket of claim 6, wherein the height of the rivet stem is H1 and the height of the second opening is H2, 2.1≤h1/h2≤8.3 along the height of the rivet stem.
  8. 8. The stent of claim 7, wherein 1.5 (millimeters) is less than or equal to H1 is less than or equal to 6.7 (millimeters), and 0.3 (millimeters) is less than or equal to H2 is less than or equal to 0.8 (millimeters).
  9. 9. A battery pack comprising a circuit board and a bracket as claimed in any one of claims 1 to 8, the circuit board being disposed in the first channel and partially interposed in the second channel.
  10. 10. The battery pack according to claim 9, wherein the circuit board is provided with a limiting hole along a length direction thereof, and the rivet stem is inserted into the limiting hole.
  11. 11. The battery pack according to claim 10, wherein the stopper portion is formed with a notch at least one end in a longitudinal direction thereof, the notch being for exposing the circuit board.

Description

Support and battery pack Technical Field The utility model relates to the technical field of batteries, in particular to a bracket and a battery pack. Background In modern electronic devices, a battery pack is one of the core components responsible for providing a stable power supply to the device. The battery pack is generally composed of an injection-molded bearing bracket, a flexible circuit board (FPC), a battery core and the like. In the current square power battery design, a hot riveting process is generally adopted for fixing the injection molding bearing bracket and the flexible circuit board. The process involves providing a plurality of rivet pins on a support and reserving corresponding holes in a flexible circuit board. The rivet hot column penetrates through the hole site of the flexible circuit board, and then the rivet hot treatment is carried out, so that the circuit board is finally fixed. However, there is a key technical problem in this process in that the flexible circuit board is easily displaced during the assembly and hot riveting processes. Such displacement may not only result in unreliable connection of the flexible circuit board to the terminals of the cells, but may also affect the stability of the overall structure and proper functioning. Therefore, how to improve the fixing process to ensure that the flexible circuit board keeps stable in position during the assembly process is a problem in the current technical field. Disclosure of utility model The utility model aims to provide a bracket and a battery pack, which aim to solve the technical problem that a circuit board is easy to shift in the assembly and hot riveting processes. In order to achieve the purpose, the bracket comprises a base body, a limiting part and a plurality of hot riveting columns, wherein two first channels and two first openings are formed at intervals, the first openings penetrate through one side of the base body in the thickness direction of the base body, the first channels are communicated with the first openings in a one-to-one correspondence mode, the limiting part is arranged on the base body, the limiting part is formed with a second channel and two second openings, the second channel is located between the two first channels, the second channel is communicated with the first channels through the second openings, the hot riveting columns are respectively arranged in the two first channels, and the second openings are arranged towards the hot riveting columns. Optionally, the bracket includes a connection portion, where the connection portion is disposed in the second channel to separate the second channel to form a first sub-channel and a second sub-channel, where one end of the connection portion is connected to the base body, and the other end is connected to the limiting portion, and the first sub-channel is communicated with the adjacent first channel through one second opening, and the second sub-channel is communicated with the adjacent first channel through another second opening. Optionally, the limiting portion is formed with a third opening, the direction of the third opening is opposite to the direction of the first opening, and the first sub-channel and the second sub-channel are both communicated with the third opening. Optionally, the edge of the limiting portion for forming the second opening is provided with a chamfer. Optionally, the number of the heat stake is two, and each heat stake is arranged at the middle part of the first channel in the length direction. Optionally, the rivet stem protrudes through the first opening in the height direction thereof beyond the first channel. Optionally, along the height direction of the hot riveting column, the height of the hot riveting column is H1, the height of the second opening is H2, and H1/H2 is more than or equal to 2.1 and less than or equal to 8.3. Alternatively, H1 is less than or equal to 1.5 (millimeters) and less than or equal to 6.7 (millimeters), H2 is less than or equal to 0.3 (millimeters) and less than or equal to 0.8 (millimeters). In a second aspect, the utility model provides a battery pack which comprises a circuit board and a bracket, wherein the circuit board is placed in a first channel and is partially inserted into a second channel. Optionally, the circuit board is provided with a limiting hole along the length direction of the circuit board, and the hot riveting column is inserted into the limiting hole. Optionally, a notch is formed at least at one end of the limiting portion along the length direction of the limiting portion, and the notch is used for exposing the circuit board. The utility model has the beneficial effects that: The support includes base member, spacing portion and a plurality of rivet hot post, is formed with two first passageways and two first openings that the interval set up, and one side of base member is link up along the thickness direction of base member to first opening, and first pas