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CN-224217663-U - Battery pack and electricity utilization device

CN224217663UCN 224217663 UCN224217663 UCN 224217663UCN-224217663-U

Abstract

The application discloses a battery pack and an electric device, wherein the battery pack is provided with a first direction and a second direction which are perpendicular to each other, the battery pack comprises a plurality of battery cells, an electric isolation plate, a flexible circuit board and a cover plate, the battery cells are arranged along the first direction, the electric isolation plate is respectively connected with the battery cells, the flexible circuit board is arranged on one side of the electric isolation plate, which is far away from the battery cells, along the second direction and is connected with the electric isolation plate, the flexible circuit board is in conductive connection with the battery cells, the cover plate is arranged on one side of the flexible circuit board, which is far away from the electric isolation plate, the cover plate comprises a first body and a first positioning part, the first body is connected with the electric isolation plate, the first positioning part is arranged on one side of the first body, which faces the flexible circuit board, and the first positioning part is far away from the first body and is in butt joint with the flexible circuit board. The application realizes the firm fixation of the flexible circuit board by utilizing the abutting connection of the first positioning part and the flexible circuit board.

Inventors

  • LIAO ZHIYONG

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. A battery pack having a first direction and a second direction perpendicular to each other, comprising: a plurality of battery cells arranged in the first direction; The electric isolation plate is arranged on one side of the plurality of battery cells along the second direction and is respectively connected with the plurality of battery cells; The flexible circuit board is arranged on one side, far away from the battery cells, of the electric isolation board along the second direction and is connected with the electric isolation board; The cover plate is arranged on one side of the flexible circuit board, which is far away from the electric isolation plate; The cover plate includes: The first body is connected with the electric isolation plate; The first positioning part is arranged on one side, facing the flexible circuit board, of the first body, and is connected with the first body, and one side, far away from the first body, of the first positioning part is abutted against the flexible circuit board.
  2. 2. The battery pack of claim 1, wherein the cover plate includes a plurality of the first positioning portions, and the plurality of the first positioning portions are disposed at intervals and are connected to the first body.
  3. 3. The battery pack according to claim 2, wherein a plurality of the first positioning portions are provided at intervals along the first direction.
  4. 4. The battery pack according to claim 2, wherein the battery pack has a third direction perpendicular to both the first direction and the second direction, and the plurality of first positioning portions are arrayed along the first direction and the third direction.
  5. 5. The battery pack of claim 1, wherein a side of the first positioning portion adjacent to the flexible circuit board is a plane or a sphere.
  6. 6. The battery pack of claim 1, wherein the battery pack has a third direction perpendicular to both the first direction and the second direction, the flexible circuit board comprising: the second body is connected with the electric isolation plate and the first positioning part; the sampling wire bundles are at least partially distributed at intervals along the third direction and embedded in the second body; The second body is provided with a positioning area, the positioning area is arranged between two adjacent sampling wire harnesses, the positioning area is arranged at intervals with the sampling wire harnesses, and the positioning area is arranged corresponding to the first positioning part.
  7. 7. The battery pack of claim 6, wherein the flexible circuit board further comprises a support portion disposed on a side of the second body facing the first body and connected to the second body, and wherein an orthographic projection of the support portion on the second body along the second direction is located entirely within the positioning region.
  8. 8. The battery pack of claim 1, wherein the cover plate has a groove provided at a side of the cover plate facing away from the flexible circuit board and recessed into the first positioning portion.
  9. 9. The battery pack of claim 1, wherein the battery pack comprises a plurality of battery cells, The flexible circuit board is provided with at least one positioning hole, and the positioning hole penetrates through the flexible circuit board along the second direction; The electrical isolation board includes: the third body is respectively connected with the first body and the battery monomers; And each second positioning part is connected to one side of the third body facing the flexible circuit board, and each second positioning part penetrates through one positioning hole.
  10. 10. An electrical device comprising a battery pack according to any one of claims 1-9.

Description

Battery pack and electricity utilization device Technical Field The application belongs to the technical field of batteries, and particularly relates to a battery pack and an electric device. Background The battery pack is internally provided with structures such as an electric isolation plate for isolating battery monomers, a flexible circuit board and the like, so that the insulativity of the inside of the battery pack is kept. However, the flexible circuit board is usually glued on the electrical isolation board, and after long-term use, the glue is aged, which causes the flexible circuit board to be fixed and fail. Disclosure of utility model The embodiment of the utility model provides a battery pack, which aims to solve the problem that the conventional flexible circuit board is easy to fix and lose efficacy, and the other aim of the embodiment of the utility model is to provide an electric device. The battery pack provided by the embodiment of the application has a first direction and a second direction which are perpendicular to each other, and comprises: a plurality of battery cells arranged in the first direction; The electric isolation plate is arranged on one side of the plurality of battery cells along the second direction and is respectively connected with the plurality of battery cells; The flexible circuit board is arranged on one side, far away from the battery cells, of the electric isolation board along the second direction and is connected with the electric isolation board; The cover plate is arranged on one side of the flexible circuit board, which is far away from the electric isolation plate; The cover plate includes: The first body is connected with the electric isolation plate; The first positioning part is arranged on one side, facing the flexible circuit board, of the first body, and is connected with the first body, and one side, far away from the first body, of the first positioning part is abutted against the flexible circuit board. In some embodiments, the cover plate includes a plurality of first positioning portions, and the plurality of first positioning portions are disposed at intervals and are all connected with the first body. In some embodiments, a plurality of the first positioning portions are disposed at intervals along the first direction. In some embodiments, the battery pack has a third direction perpendicular to both the first direction and the second direction, and the plurality of first positioning portions are arrayed along the first direction and the third direction. In some embodiments, a side surface of the first positioning portion, which is close to the flexible circuit board, is a plane or a sphere. In some embodiments, the battery pack has a third direction perpendicular to both the first direction and the second direction, the flexible circuit board comprising: the second body is connected with the electric isolation plate and the first positioning part; the sampling wire bundles are at least partially distributed at intervals along the third direction and embedded in the second body; The second body is provided with a positioning area, the positioning area is arranged between two adjacent sampling wire harnesses, the positioning area is arranged at intervals with the sampling wire harnesses, and the positioning area is arranged corresponding to the first positioning part. In some embodiments, the flexible circuit board includes a support portion, where the support portion is disposed on a side of the second body facing the first body and is connected to the second body, and an orthographic projection of the support portion on the second body along the second direction is completely located in the positioning area. In some embodiments, the cover plate has a groove, and the groove is disposed on a side of the cover plate facing away from the flexible circuit board and is recessed into the first positioning portion. In some embodiments of the present invention, in some embodiments, The flexible circuit board is provided with at least one positioning hole, and the positioning hole penetrates through the flexible circuit board along the second direction; The electrical isolation board includes: the third body is respectively connected with the first body and the battery monomers; And each second positioning part is connected to one side of the third body facing the flexible circuit board, and each second positioning part penetrates through one positioning hole. Accordingly, an electrical device according to an embodiment of the present application includes a battery pack according to any one of the foregoing embodiments. The battery pack has the advantages that compared with the prior art, the battery pack has the first direction and the second direction which are perpendicular to each other, the battery pack comprises a plurality of battery cells, an electric isolation plate, a flexible circuit board and a cover plate, the battery cells are arranged alon