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CN-224232859-U - Explosion-proof box for battery and battery

CN224232859UCN 224232859 UCN224232859 UCN 224232859UCN-224232859-U

Abstract

The utility model discloses an explosion-proof box body for a battery and the battery, comprising a shell and a cover body, wherein the top end of the shell is in an open arrangement, the cover body is provided with a first side and a second side which are opposite, the first side is hinged to one side of the top end of the shell, the second side is connected with an elastic belt, the bottom end of the elastic belt is detachably connected with the other side of the top end of the shell, the cover body is provided with a side plate, the side plate is attached to the outer side surface of the shell, the side plate of the second side is provided with a ventilation groove, the side wall of the shell covers the inner side of the ventilation groove, or the side plate of the second side covers the outer side of the ventilation groove, and when the bottom surface of the cover body is impacted by airflow in the shell, the second side can move upwards to enable the inner cavity of the shell to be communicated with the external environment through the ventilation groove. The explosion-proof box body for the battery and the battery can effectively improve the explosion-proof effect.

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 case for a battery, comprising: The top end of the shell is provided with an opening; The cover body is provided with a first side and a second side which are opposite, the first side is hinged to one side of the top end of the shell, the second side is connected with an elastic belt, the bottom end of the elastic belt is detachably connected with the other side of the top end of the shell, the cover body is provided with a side plate, and the side plate is attached to the outer side face of the shell; The side plate of the second side is provided with a ventilation groove, the side wall of the shell covers the inner side of the ventilation groove, or the side wall of the shell is provided with a ventilation groove, and the side plate of the second side covers the outer side of the ventilation groove; When the bottom surface of the cover body is impacted by the air flow in the shell, the second side can move upwards so that the inner cavity of the shell body is communicated with the external environment through the ventilation groove.
  2. 2. The explosion-proof case for a battery according to claim 1, wherein the ventilation groove is provided in the side plate of the second side and extends in a longitudinal direction of the side plate of the second side, and the elastic band is provided in two and is provided on both sides of the ventilation groove, respectively.
  3. 3. The explosion-proof case for a battery according to claim 1, further comprising: 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 in the shell enters 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.
  4. 4. The explosion-proof case for a battery according to claim 3, 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.
  5. 5. The explosion-proof case for a battery according to claim 4, 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.
  6. 6. The explosion-proof case for a battery according to claim 3, wherein the cover 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 case 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 case 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, and the bottom surface of the collar extends obliquely upward from outside to inside.
  9. 9. The explosion-proof case for a battery according to claim 6, wherein a seal ring is interposed between a bottom surface of the mounting ring and a top surface of the cover.
  10. 10. A battery comprising the explosion-proof case for a battery according to any one of claims 1 to 9.

Description

Explosion-proof box for battery and battery Technical Field The utility model relates to the technical field of batteries, in particular to an explosion-proof box body for a battery and the battery. Background The battery can produce gas in long-term use (e.g. overcharge), and the gas is too much can cause the atmospheric pressure in the battery great, in the related art, can set up the bleeder vent on the lid of battery and ventilate, but in order to reduce outside dust and rainwater and get into the battery through the bleeder vent and cause the influence to the part in the battery, the aperture of bleeder vent generally sets up less, so, when the part in the battery appears the short circuit and produces a large amount of heats and even catch fire, the electrolyte decomposition in the twinkling of an eye can produce a large amount of gas, and the bleeder vent that the aperture is less can reach ventilate, explosion-proof effect is relatively poor. 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 box body for the battery, which can effectively improve the explosion-proof effect. The utility model also provides a battery with the explosion-proof box body for the battery. According to the battery explosion-proof box body, the top end of the shell is provided with the first side and the second side which are opposite, the first side is hinged to one side of the top end of the shell, the second side is connected with the elastic band, the bottom end of the elastic band is detachably connected with the other side of the top end of the shell, the cover is provided with the side plate, the side plate is attached to the outer side face of the shell, the side plate of the second side is provided with the ventilation groove, the side wall of the shell covers the inner side of the ventilation groove, or the side wall of the shell is provided with the ventilation groove, the side plate of the second side covers the outer side of the ventilation groove, and when the bottom face of the cover is impacted by air flow in the shell, the second side can move upwards to enable the inner cavity of the shell and the external environment to be communicated through the ventilation groove. The explosion-proof box for the battery, provided by the embodiment of the utility model, has at least the following beneficial effects: When the components in the battery are short-circuited to generate a large amount of heat and even catch fire, the electrolyte is instantaneously decomposed to generate a large amount of gas, the high-pressure air flow further impacts the bottom surface of the cover body, the elastic belt is elastically stretched by impact force, and the second side of the cover body can further move upwards. When the curb plate of second side is located to ventilative groove, ventilative groove can follow and remove to being located the top of casing, and then can make the inner chamber and the external environment of casing pass through ventilative groove intercommunication, when the lateral wall of casing is located to ventilative groove, the second side of lid can move up to make ventilative groove show, and then can make the inner chamber and the external environment of casing pass through ventilative groove intercommunication to can make the high-pressure air flow in the casing discharge fast through ventilative groove. Because under the normal condition, the curb plate laminating of lid is in the lateral surface of casing, and ventilative groove can be covered by the curb plate of the lateral wall of casing or second side, so, can avoid outside dust and rainwater to get into in the battery through ventilative groove and cause the influence to the part in the battery, and then the area of ventilative groove can set up great to can effectively improve explosion-proof effect. According to some embodiments of the utility model, the ventilation groove is formed in the side plate of the second side and extends along the length direction of the side plate of the second side, and the elastic belt is provided with two elastic belts and is respectively located on two sides of the ventilation groove. According to some embodiments of the utility model, the explosion-proof case for a battery further includes: 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 plat