Search

CN-224218572-U - Battery protection plate, battery and electronic equipment

CN224218572UCN 224218572 UCN224218572 UCN 224218572UCN-224218572-U

Abstract

The utility model discloses a battery protection board, a battery and electronic equipment, wherein the battery protection board comprises a flexible circuit board, the flexible circuit board comprises a first section, a second section and a bending connection section, the first section and the second section are arranged on the same side of the bending connection section and are respectively connected with two ends of the bending connection section, the bending connection section is provided with a deformation hole, and an orifice of the deformation hole is positioned on the surface of the bending connection section. The scheme can solve the problem that the thickness of the battery protection plate in the related art is larger.

Inventors

  • WAN MENG
  • ZHU YUXUAN
  • ZHANG ZHENGYAN
  • DUAN XIAOXIONG
  • YAO CHENGQIANG

Assignees

  • 欣旺达电子股份有限公司

Dates

Publication Date
20260508
Application Date
20250429

Claims (10)

  1. 1. The utility model provides a battery protection board, its characterized in that, includes flexible circuit board (200), flexible circuit board (200) include first section (210), second section (220) and buckle and link up section (230), first section (210) with second section (220) are all located buckle and link up the same side of section (230), and respectively with buckle and link up the both ends of section (230) and link up, buckle and link up section (230) and offered deformation hole (201), the drill way of deformation hole (201) is located buckle the face of linking section (230).
  2. 2. The battery protection plate according to claim 1, wherein the deformation holes (201) are through holes.
  3. 3. The battery protection plate according to claim 1, wherein the bent engagement section (230) comprises a first portion (231), a second portion (232) and a third portion (233), the first portion (231) and the second portion (232) being arranged at a distance from each other on the same side of the third portion (233), the first section (210) being connected to a side of the first portion (231) facing away from the third portion (233), the second section (220) being connected to a side of the second portion (232) facing away from the third portion (233).
  4. 4. A battery protection plate according to claim 3, characterized in that the deformation hole (201) comprises a first hole section (201 a), the first hole section (201 a) being open at the third portion (233) and extending in the direction of arrangement of the first portion (231) and the second portion (232).
  5. 5. The battery protection plate according to claim 4, wherein the deformation hole (201) further comprises a second hole section (201 b), the second hole section (201 b) extending in a direction perpendicular to the extension direction of the first hole section (201 a).
  6. 6. A battery protection plate according to claim 3, characterized in that a first chamfer (202) is provided at the junction of the first portion (231) and the third portion (233), a second chamfer (203) is provided at the junction of the second portion (232) and the third portion (233), and the first chamfer (202) and the second chamfer (203) are both located on opposite sides of the first portion (231) and the second portion (232).
  7. 7. The battery protection plate according to claim 1, further comprising a rigid circuit board (100), wherein a first end of the first section (210) is connected to the bent engagement section (230), and a second end of the first section (210) is connected to the rigid circuit board (100).
  8. 8. The battery protection plate according to claim 1, wherein the second section (220) has a redundant portion (221), the redundant portion (221) being corrugated, and the second section (220) is extendable or contractible in a length direction of the second section (220) by the redundant portion (221).
  9. 9. A battery comprising a battery cell and the battery protection plate according to any one of claims 1 to 8, the battery protection plate being connected to the battery cell.
  10. 10. An electronic device comprising a device body and the battery of claim 9, the battery being provided to the device body.

Description

Battery protection plate, battery and electronic equipment Technical Field The present utility model relates to the field of battery technologies, and in particular, to a battery protection plate, a battery, and an electronic device. Background The battery protection board is an integrated circuit board which plays a role in protecting a battery (such as a polymer lithium ion battery) so as to avoid overcharge, overdischarge, overcurrent, short circuit, ultra-high temperature charge and discharge and the like of the battery. The battery protection board includes a flexible circuit board (here, a flexible circuit board having a spring-like property) for electrically connecting the battery cells of the battery and the device body of the electronic device. Due to the structural characteristics of the electronic device, the flexible circuit board needs to be provided with a bending structure. However, in the process of mounting the battery on the electronic device, there is a positional error at the connection point of the flexible circuit board and the device main body due to errors in design, mounting, and the like, and therefore, it is necessary to adjust the position of the end of the flexible circuit board connected to the device main body. Because the flexible circuit board is of a bending structure, when the position of one end of the flexible circuit board connected with the device main body is adjusted, tearing is easy to occur at the bending structure, therefore, the flexible circuit board is bent once in the thickness direction by the related technology (as shown in fig. 3) so as to relieve the problem of tearing of the flexible circuit board, however, the thickness of the battery protection board is necessarily increased after the flexible circuit board is bent, and the design of lightening and thinning of the battery is not facilitated. Disclosure of utility model The utility model discloses a battery protection plate, a battery and electronic equipment, which are used for solving the problem of larger thickness of the battery protection plate in the related technology. In order to solve the technical problems, the utility model is realized as follows: In a first aspect, the application discloses a battery protection board, which comprises a flexible circuit board, wherein the flexible circuit board comprises a first section, a second section and a bending connection section, the first section and the second section are arranged on the same side of the bending connection section and are respectively connected with two ends of the bending connection section, the bending connection section is provided with a deformation hole, and an orifice of the deformation hole is positioned on the surface of the bending connection section. In a second aspect, the application also discloses a battery, which comprises a battery cell and the battery protection plate in the first aspect, wherein the battery protection plate is connected with the battery cell. In a third aspect, the present application also discloses an electronic device, where the disclosed electronic device includes a device main body and the battery according to the second aspect, and the battery is provided in the device main body. The technical scheme adopted by the utility model can achieve the following technical effects: According to the battery protection board disclosed by the embodiment of the application, the flexible circuit board is arranged to be of a structure comprising the first section, the second section and the bending connection section, so that the first section and the second section are arranged on the same side of the bending connection section and are respectively connected with two ends of the bending connection section, and the bending connection section is provided with the deformation hole, so that when the first section or the second section needs to be subjected to position adjustment, the bending connection section can deform at the position of the deformation hole to avoid stress concentration of the bending connection section, and further tearing at the position of the bending connection section can be avoided. Because the flexible circuit board is not bent in the thickness direction, the thickness of the flexible circuit board is relatively small, so that the thinning of the battery protection board is facilitated, and the light and thin design of the battery is facilitated. Drawings Fig. 1 is a schematic view showing a partial structure of a battery protection plate according to an embodiment of the present utility model; fig. 2 is a schematic view showing the overall structure of a battery protection plate according to an embodiment of the present utility model; Fig. 3 is a battery protection plate in the related art. Reference numerals illustrate: 100-hard circuit board, 200-Flexible circuit board, 201-deformation hole, 201 a-first hole section, 201 b-second hole section, 202-first chamfer portion, 203-second ch