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CN-224204280-U - Battery and electric equipment

CN224204280UCN 224204280 UCN224204280 UCN 224204280UCN-224204280-U

Abstract

The application provides a battery and electric equipment, wherein the battery comprises a shell, a pole core component air guide component and an explosion-proof valve, the shell comprises a containing cavity, a first shell wall and a second shell wall, the first shell wall and the second shell wall are positioned on two sides of the containing cavity, an air guide groove is formed in the inner side of the first shell wall, the pole core component and the pole core component are both arranged in the containing cavity, the air guide component is provided with at least one air guide channel, one end of the air guide channel is communicated with the air guide groove, and the other end of the air guide channel is correspondingly arranged with the explosion-proof valve. The battery provided by the application has higher safety.

Inventors

  • DENG LIWEI
  • JI XIWEI
  • ZHANG PEI

Assignees

  • 比亚迪股份有限公司
  • 惠州比亚迪电池有限公司

Dates

Publication Date
20260505
Application Date
20250417

Claims (12)

  1. 1. A battery, comprising: -a housing (100), the housing (100) comprising a receiving cavity (110), the receiving cavity (110) having a first housing wall (120) and a second housing wall (130), the first housing wall (120) and the second housing wall (130) being located on both sides of the receiving cavity (110), the first housing wall (120) being provided with an air guide groove (121) communicating with the receiving cavity (110); a pole core assembly (200), wherein the pole core assembly (200) is accommodated in the accommodating cavity (110); The air guide assembly (300), the air guide assembly (300) is arranged in the accommodating cavity (110), the air guide assembly (300) is provided with at least one air guide channel (310), and one end of the air guide channel (310) is communicated with the air guide groove (121); The explosion-proof valve (400) is arranged on the second shell wall (130), and the other end of the air guide channel (310) is arranged corresponding to the explosion-proof valve (400).
  2. 2. The battery according to claim 1, characterized in that the projection of the port of the gas guide channel (310) towards the first housing wall (120) onto the first housing wall (120) is located within the gas guide groove (121).
  3. 3. The battery according to claim 1, wherein the air guide groove (121) includes at least one sub groove (1211), the sub groove (1211) extending along at least one of a length direction and a width direction of the first case wall (120).
  4. 4. The battery according to claim 3, wherein the sub-groove (1211) includes a first sub-groove (12111) and a second sub-groove (12112), the first sub-groove (12111) extending in a length direction of the first case wall (120), the second sub-groove (12112) extending in a width direction of the first case wall (120), the first sub-groove (12111) and the second sub-groove (12112) being staggered and communicating with each other; The air guide channel (310) communicates with at least one of the first sub-slot (12111) and the second sub-slot (12112).
  5. 5. The battery according to any one of claims 1-4, wherein the first and second housing walls (120, 130) are located on opposite sides of the receiving cavity (110); An exhaust gap is formed between the second shell wall (130) and the pole core assembly (200), and one end of the air guide channel (310) away from the first shell wall (120) is communicated with the exhaust gap.
  6. 6. The battery according to any one of claims 1-4, wherein the gas guide assembly (300) has an enclosed cavity (320), the pole core assembly (200) is located within the enclosed cavity (320), and the gas guide channel (310) is disposed open toward one side of the pole core assembly (200) to communicate with the enclosed cavity (320).
  7. 7. The battery of claim 6, wherein the pole core assembly (200) has a flat region and corner regions, the corner regions being located on opposite sides of the flat region; The cavity wall surrounding the cavity (320) comprises a plane area (321) and an arc surface area (322), wherein the plane area (321) is arranged corresponding to the straight area, and the arc surface area (322) is arranged corresponding to the corner area.
  8. 8. The battery according to any one of claims 1 to 4, wherein the number of the air guide channels (310) is at least two, the at least two air guide channels (310) are arranged at intervals, and the extending directions of the at least two air guide channels (310) are consistent; And supporting ribs (330) are arranged between two adjacent air guide channels (310).
  9. 9. The battery according to any one of claims 1 to 4, wherein at least two of the air guide channels (310) are arranged at intervals, and the extending directions of at least two of the air guide channels (310) are arranged at an included angle.
  10. 10. The battery according to claim 5, further comprising a third housing wall (140), the first housing wall (120) and the third housing wall (140) being located on adjacent sides of the receiving cavity (110); The air guide assembly (300) comprises a first air guide piece (300 a), at least part of the first air guide piece (300 a) is positioned on one side of the pole core assembly (200) facing the third shell wall (140), and an air guide channel (310) is formed on one side of the first air guide piece (300 a) facing the pole core assembly (200).
  11. 11. The battery according to claim 10, further comprising a fourth housing wall (150), the fourth housing wall (150) and the third housing wall (140) being located on opposite sides of the receiving cavity (110); The air guide assembly (300) comprises a second air guide (300 b), at least part of the second air guide (300 b) is located at one side of the pole core assembly (200) facing the fourth shell wall (150), and the air guide channel (310) is arranged at one side of the second air guide (300 b) facing the pole core assembly (200).
  12. 12. A powered device comprising an electrical device and a battery as claimed in any one of claims 1 to 11, the battery powering the electrical device.

Description

Battery and electric equipment Technical Field The application relates to the technical field of batteries, in particular to a battery and electric equipment. Background In the related art, the battery monomer comprises a shell and a bare cell, wherein the bare cell and electrolyte are packaged in the shell, the bare cell comprises a positive plate, a diaphragm and a negative plate which are sequentially stacked, and the positive plate, the negative plate and the electrolyte participate in electrochemical reaction, so that electric energy storage and release are realized. Under the conditions that the charge and discharge temperature of the battery monomer is too high or the charge and discharge temperature is too low, gas is easy to generate in the battery monomer, a gap between the bare cell and the shell is small, gas generated in the battery monomer is not smoothly discharged, and then the safety problems such as explosion, ignition and the like of the battery monomer are easy to cause. Disclosure of utility model Based on the above, the application provides a battery and electric equipment to solve the defects in the related art. In a first aspect, the present application provides a battery comprising: The shell comprises a containing cavity, the containing cavity is provided with a first shell wall and a second shell wall, the first shell wall and the second shell wall are positioned on two sides of the containing cavity, and the first shell wall is provided with an air guide groove communicated with the containing cavity; the pole core component is accommodated in the accommodating cavity; The air guide assembly is arranged in the accommodating cavity, one side of the air guide assembly, facing the pole core assembly, is provided with at least one air guide channel, and one end of the air guide channel is communicated with the air guide groove; The explosion-proof valve is arranged on the second shell wall, and the other end of the air guide channel is arranged corresponding to the explosion-proof valve. In one possible implementation, the projection of the port of the air guide channel towards the first housing wall onto the first housing wall is located in the air guide groove. In one possible implementation, the air guide slot includes at least one sub-slot extending along at least one of a length direction and a width direction of the first housing wall. In one possible implementation, the subslot includes a first subslot and a second subslot, the first subslot extending along a length direction of the first shell wall, the second subslot extending along a width direction of the first shell wall, the first subslot and the second subslot being staggered and in communication with each other; the air guide channel is communicated with at least one of the first sub-groove and the second sub-groove. In one possible implementation, the battery further includes an explosion-proof valve, the housing further includes a second housing wall, the first housing wall and the second housing wall are located on opposite sides of the receiving chamber, the explosion-proof valve is disposed on the second housing wall; an exhaust gap is formed between the second shell wall and the pole core assembly, and one end of the air guide channel, which is away from the first shell wall, is communicated with the exhaust gap. In one possible implementation, the gas guide assembly has an enclosed cavity, the pole piece assembly is located within the enclosed cavity, and the gas guide channel is disposed open to one side of the pole piece assembly to communicate with the enclosed cavity. In one possible implementation, the pole piece assembly has a flat region and corner regions, the corner regions being located on opposite sides of the flat region; The cavity wall surrounding the cavity comprises a plane area and an arc surface area, wherein the plane area is arranged corresponding to the straight area, and the arc surface area is arranged corresponding to the corner area. In one possible implementation manner, the number of the air guide channels is at least two, the at least two air guide channels are arranged at intervals, and the extending directions of the at least two air guide channels are consistent; and supporting ribs are arranged between two adjacent air guide channels, and the extending direction of the supporting ribs is consistent with that of the air guide channels. In one possible implementation manner, the number of the air guide channels is at least two, the at least two air guide channels are arranged at intervals, and the extending directions of the at least two air guide channels are arranged at an included angle. In one possible implementation, the housing further includes a third housing wall, the first housing wall and the third housing wall being located on adjacent sides of the receiving cavity, the third housing wall being connected to the first housing wall; The air guide assembly comprises a first