Search

CN-224232845-U - Explosion-proof cover for battery and battery

CN224232845UCN 224232845 UCN224232845 UCN 224232845UCN-224232845-U

Abstract

The utility model discloses an explosion-proof cover body for a battery and the battery, which comprises a cover body and an explosion-proof assembly, wherein the explosion-proof assembly comprises a mounting seat and an explosion-proof plate, the mounting seat is mounted on the cover body, the mounting seat is provided with an air hole penetrating up and down, the air hole comprises a first hole section and a second hole section, the second hole section is positioned below the first hole section, the aperture of the second hole section is smaller than that of the first hole section, a communicating groove is formed in the hole wall of the first hole section, the communicating groove extends vertically, the explosion-proof plate is slidably mounted in the first hole section and covers the top end of the second hole section, and when air flow enters the second hole section from the bottom end of the second hole section, the explosion-proof plate can be lifted to be higher than the bottom end of the communicating groove by the air flow, so that the top end of the first hole section is communicated with the second hole section through the communicating groove. The explosion-proof cover body for the battery and the battery have better explosion-proof effect, and can reduce the influence of external dust entering the battery to components in the battery.

Inventors

  • LIU ZHIPING
  • LI PING
  • XU SHIHAO

Assignees

  • 湖南嘟嘟智慧科技有限公司

Dates

Publication Date
20260512
Application Date
20250513

Claims (10)

  1. 1. An explosion-proof cover for a battery, comprising: a cover body; The explosion-proof assembly comprises a mounting seat and an explosion-proof plate, wherein the mounting seat is mounted on the cover body, the mounting seat is provided with an air hole penetrating up and down, the air hole comprises a first hole section and a second hole section, the second hole section is positioned below the first hole section, the aperture of the second hole section is smaller than that of the first hole section, the hole wall of the first hole section is provided with a communication groove, the communication groove extends vertically, and the explosion-proof plate is slidably mounted in the first hole section and covers the top end of the second hole section; when the air flow enters the second hole section from the bottom end of the second hole section, the explosion-proof plate can be lifted by the air flow to be higher than the bottom end of the communication groove, so that the top end of the first hole section is communicated with the second hole section through the communication groove.
  2. 2. The explosion-proof cover for a battery according to claim 1, wherein the explosion-proof assembly further comprises: and the elastic piece is connected with the hole wall of the first hole section and elastically abuts against the upper end surface of the explosion-proof plate.
  3. 3. The explosion-proof cover for a battery according to claim 2, wherein the elastic member comprises: A connecting part connected to the wall of the first hole section; And the elastic sheet is connected with the connecting part and extends from top to bottom along the axial lead close to the first hole section in a bending way.
  4. 4. The explosion-proof cover for a battery according to claim 2, wherein the elastic member is provided in plurality and arranged along the circumferential direction of the first hole section, and the communication groove is provided in plurality and arranged along the circumferential direction of the first hole section.
  5. 5. The explosion-proof cover for a battery according to claim 4, wherein the elastic members and the communication grooves are arranged in a staggered manner in the circumferential direction of the first hole section.
  6. 6. The explosion-proof cover for a battery according to claim 1, wherein the cover body is provided with a mounting hole penetrating up and down, and the mounting seat comprises: The mounting part comprises a mounting ring and a convex ring, the mounting ring is mounted at the upper end of the cover body through a fastener, a threaded hole is formed in the mounting ring, the convex ring is arranged at the bottom end of the mounting ring and is matched and inserted into the mounting hole, the second hole Duan Sheyu is the convex ring, and the aperture of the threaded hole is larger than that of the second hole section; The screw bolt is in threaded connection with the threaded hole, and the first hole section is arranged on the screw bolt.
  7. 7. The explosion-proof cover for a battery according to claim 6, wherein the tip of the stud protrudes from the tip of the mounting ring.
  8. 8. The explosion-proof cover for a battery according to claim 6, wherein an outer end of a bottom surface of the collar is flush with a bottom surface of the cover body, and the bottom surface of the collar extends obliquely upward from outside to inside.
  9. 9. The explosion-proof cover for a battery according to claim 6, wherein a sealing ring is sandwiched between a bottom surface of the mounting ring and a top surface of the cover body.
  10. 10. A battery comprising the explosion-proof cover for a battery according to any one of claims 1 to 9.

Description

Explosion-proof cover for battery and battery Technical Field The utility model relates to the technical field of batteries, in particular to an explosion-proof cover body for a battery and the battery. Background The battery can generate gas during long-term use (such as frequent overcharge), and the gas pressure in the battery is high due to excessive gas, especially in hot days, so that the battery can be easily found to explode due to high-pressure gas. In the related art, ventilation holes are formed in the cover body of the battery to allow ventilation, but the ventilation holes are formed in the cover body, and external dust easily enters the battery through the ventilation holes to affect components in the battery. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the explosion-proof cover body for the battery, which not only has a better explosion-proof effect, but also can reduce the influence of external dust entering the battery to components in the battery. The utility model also provides a battery with the explosion-proof cover body for the battery. According to the battery explosion-proof cover body, the battery explosion-proof cover body comprises a cover body and an explosion-proof assembly, wherein the explosion-proof assembly comprises a mounting seat and an explosion-proof plate, the mounting seat is mounted on the cover body, the mounting seat is provided with an air hole penetrating through the mounting seat up and down, the air hole comprises a first hole section and a second hole section, the second hole section is located below the first hole section, the aperture of the second hole section is smaller than that of the first hole section, the hole wall of the first hole section is provided with a communication groove, the communication groove extends vertically, the explosion-proof plate is slidably mounted in the first hole section and covers the top end of the second hole section, and when air flow enters the second hole section from the bottom end of the second hole section, the explosion-proof plate can be lifted to be higher than the bottom end of the communication groove by the air flow, so that the top end of the first hole section is communicated with the second hole section through the communication groove. The explosion-proof cover body for the battery, provided by the embodiment of the utility model, has at least the following beneficial effects: Under normal conditions, the top of second hole section is covered to the explosion-proof board, and then can avoid outside dust to enter into the battery through the bleeder vent and cause the influence to the part in the battery. When the air pressure in the battery is higher, the high-pressure air flow in the battery can enter the second hole section from the bottom end of the second hole section, the explosion-proof plate is impacted by the high-pressure air flow to slide upwards, and when the explosion-proof plate is lifted to be higher than the bottom end of the communication groove by the air flow, the top end of the first hole section is communicated with the second hole section through the communication groove, so that the high-pressure air flow can be conveniently and rapidly discharged, and explosion of the battery is avoided. According to the explosion-proof cover body for the battery, disclosed by the embodiment of the utility model, not only is the better explosion-proof effect achieved, but also the influence of external dust entering the battery to components in the battery can be reduced. According to some embodiments of the utility model, the explosion proof assembly further comprises: and the elastic piece is connected with the hole wall of the first hole section and elastically abuts against the upper end surface of the explosion-proof plate. According to some embodiments of the utility model, the elastic member includes: A connecting part connected to the wall of the first hole section; And the elastic sheet is connected with the connecting part and extends from top to bottom along the axial lead close to the first hole section in a bending way. According to some embodiments of the utility model, the elastic member is provided with a plurality of communicating grooves and is arranged along the circumference of the first hole section. According to some embodiments of the utility model, the elastic member and the communication groove are arranged in a staggered manner along the circumferential direction of the first hole section. According to some embodiments of the utility model, the cover body is provided with a mounting hole penetrating up and down, and the mounting seat comprises: The mounting part comprises a mounting ring and a convex ring, the mounting ring is mounted at the upper end of the cover body through a fastener, a threaded hole is formed in the mounting ring, the convex ring