Search

CN-224232844-U - Active early warning explosion-proof cover body, battery and electric two-wheeled vehicle

CN224232844UCN 224232844 UCN224232844 UCN 224232844UCN-224232844-U

Abstract

The application discloses an active early warning explosion-proof cover body, a battery and an electric two-wheeled vehicle, wherein under the condition that the air pressure in the battery is high, the air pressure detection unit detects that the air pressure in the battery shell is increased, so that active early warning can be carried out when the air pressure in the shell is too high, a rider can be reminded of finding danger as soon as possible, stopping and keeping away in time, personnel damage is avoided, meanwhile, 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 slides upwards under the impact of the high-pressure air flow, and when the explosion-proof plate is lifted to be higher than the bottom end of a 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 is conveniently and rapidly discharged, the battery is prevented from exploding, and the possibility of damaging the rider can be further reduced.

Inventors

  • YANG JINLIN
  • LI PING
  • LIU ZHIPING

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 active early warning explosion-proof cover body, which is characterized by 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, wherein when the explosion-proof plate can be lifted to be higher than the bottom end of the communication groove by air flow in the battery shell, the top end of the first hole section is communicated with the second hole section through the communication groove; The control unit is arranged in the battery shell; And the air pressure detection unit is electrically connected with the control unit, is arranged in the battery shell and is used for detecting the air pressure in the battery shell.
  2. 2. The active pre-warning explosion-proof cover of claim 1, further comprising: And the component pressure relief detection unit is electrically connected with the control unit and is used for detecting the moving state of the explosion-proof plate along the axial direction of the air holes.
  3. 3. The active warning explosion-proof cover of claim 2, wherein the component pressure relief detection unit comprises: the sheet type pressure sensor is arranged at the bottom of the first hole section and positioned between the bottom of the first hole section and the explosion-proof plate, and is electrically connected with the control unit and used for detecting the pressure between the bottom of the first hole section and the explosion-proof plate.
  4. 4. The active early warning explosion-proof cover body according to claim 2, wherein a separation plate is horizontally arranged in the battery shell, and a battery cell module is arranged below the separation plate; the subassembly pressure release detecting element includes: The component displacement detection sensor is electrically connected with the control unit, is arranged at the top of the isolation plate and is opposite to the explosion-proof plate, and is used for detecting the vertical movement distance of the explosion-proof plate.
  5. 5. The active pre-warning explosion-proof cover of claim 1, further comprising: And the temperature sensor is electrically connected with the control unit, is arranged in the battery shell and is used for detecting the temperature in the battery shell.
  6. 6. The active pre-warning explosion-proof cover of claim 1, further comprising: And the alarm module is electrically connected with the control unit.
  7. 7. The active warning explosion-proof cover of 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.
  8. 8. The active warning explosion-proof cover of claim 7, wherein the resilient 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.
  9. 9. A battery comprising an active early warning explosion-proof cover as claimed in any one of claims 1 to 8.
  10. 10. An electric two-wheeled vehicle comprising a battery as claimed in claim 9.

Description

Active early warning explosion-proof cover body, battery and electric two-wheeled vehicle Technical Field The application relates to the field of two-wheelers, in particular to an active early warning explosion-proof cover body, a battery and an electric two-wheeler. Background When abnormal conditions such as internal short circuit, thermal runaway and the like occur in the battery cell, the air pressure in the battery shell is extremely easy to rise sharply. When the air pressure exceeds the bearing limit of the shell, the shell can be cracked or even exploded, and serious threat is formed to the safety of equipment and personal safety. Therefore, how to solve the problem of air pressure rise caused by abnormal cell is an unavoidable problem in the current battery technology field. Disclosure of utility model The application aims to provide an active early warning explosion-proof cover body, a battery and an electric two-wheeled vehicle, which have a good explosion-proof effect. An embodiment of the first aspect of the present application provides an active early warning explosion-proof cover, including: 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, wherein when the explosion-proof plate can be lifted to be higher than the bottom end of the communication groove by air flow in the battery shell, the top end of the first hole section is communicated with the second hole section through the communication groove; The control unit is arranged in the battery shell; And the air pressure detection unit is electrically connected with the control unit, is arranged in the battery shell and is used for detecting the air pressure in the battery shell. An embodiment of a second aspect of the present application provides a battery, including the active early warning explosion-proof cover according to the embodiment of the first aspect. An embodiment of a third aspect of the present application provides an electric two-wheeled vehicle, including the battery according to the embodiment of the second aspect. According to the active early warning explosion-proof cover body, the battery and the electric two-wheeled vehicle, under the condition that the air pressure in the battery is high, the air pressure detection unit detects that the air pressure in the battery shell is increased, so that active early warning can be carried out when the air pressure in the shell is too high, a rider can be reminded of finding danger as soon as possible, stopping and keeping away in time, personnel damage is avoided, meanwhile, 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 slides upwards under the impact of the high-pressure air flow, 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, and therefore the high-pressure air flow can be conveniently and rapidly discharged, explosion of the battery is avoided, and the possibility of damage to the rider can be further reduced. Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Drawings The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which: FIG. 1 is an electrical system diagram of an active early warning explosion-proof cover according to an embodiment of the present application; FIG. 2 is a schematic diagram of the overall structure of an active early warning explosion-proof cover according to an embodiment of the present application; FIG. 3 is a cross-sectional view of FIG. 2; FIG. 4 is an enlarged view of a portion of FIG. 3; fig. 5 is a schematic view of the vent panel of fig. 4 in another position. A cover body 100, a mounting hole 101; Explosion-proof assembly 200, mounting seat 201, explosion-proof plate 202, vent 203, first hole section 204, second hole section 205, communication slot 206, elastic member 207, connecting portion 208, el