主动防爆电池及电动两轮车
By incorporating a flame-retardant module and a thermal aerosol fire extinguisher within the battery, and utilizing a temperature sensor to detect high temperatures and activate the aerosol fire extinguisher, the risk of explosion caused by battery short circuits is mitigated, achieving a concentrated flame-retardant and explosion-proof effect and enhancing battery safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN DUDU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
If a battery cell experiences an internal short circuit or thermal runaway, the gas pressure will rise sharply, causing the casing to rupture and potentially leading to an explosion, posing a serious safety hazard.
The device employs a flame-retardant module, including an isolation plate and a thermal aerosol fire extinguisher. A temperature sensor detects the temperature of the battery cell, and when a high temperature is detected, the thermal aerosol fire extinguisher is activated. The aerosol is then concentrated and sprayed onto the battery cell module for flame retardancy. Combined with the design of the flow channel and discharge port, it ensures that the aerosol acts on the battery cell module in a concentrated manner.
It effectively reduces the risk of explosion, achieves centralized flame retardancy and explosion protection, reduces the impact of aerosols on other components, and improves battery safety.
Smart Images
Figure CN224520089U_ABST
Abstract
Claims
1. An actively venting battery, characterized in that include: Box; The battery cell module is located inside the housing; A flame-retardant module includes an isolation plate and a thermal aerosol fire extinguisher. The isolation plate is located inside the housing and covers the top of the battery cell module. The isolation plate has a flow channel, and the bottom end of the flow channel has a discharge port facing the battery cell module. The thermal aerosol fire extinguisher is located inside the housing and communicates with the flow channel. The control unit is located inside the enclosure; A temperature sensor, electrically connected to the control unit and installed inside the enclosure, is used to detect the temperature inside the enclosure; the control unit is used to acquire the temperature collected by the temperature sensor and activate the thermal aerosol fire extinguisher to input aerosol into the flow channel.
2. The actively venting battery of claim 1, wherein, The thermal aerosol fire extinguisher is located at the top of the isolation plate.
3. The actively venting battery of claim 2, wherein, The isolation plate has heat-conducting holes running vertically through it. The thermal aerosol fire extinguisher is located above the heat-conducting holes and covers them. The control unit and the temperature sensor are integrated into the flame-retardant module. The temperature sensor is located at the bottom of the thermal aerosol fire extinguisher.
4. The actively venting battery of claim 1, wherein, There are multiple temperature sensors, which are disposed in different areas inside the enclosure.
5. The actively venting battery of claim 1, wherein, All of the temperature sensors are located below the isolation plate.
6. The actively venting battery of claim 1, wherein, The active explosion-proof battery also includes: An air pressure detection unit, electrically connected to the control unit and installed inside the box, is used to detect the air pressure inside the box.
7. The actively venting battery of claim 1, wherein, The active explosion-proof battery also includes: The alarm module is electrically connected to the control unit.
8. The actively venting battery of claim 1, wherein, The top of the isolation plate is connected to a guide pipe, and the guide pipe and the isolation plate enclose the guide channel. The discharge port is located on the isolation plate.
9. The actively venting battery of claim 1, wherein, The battery cell module includes multiple battery cells, which are arranged along a first horizontal direction. The flow channel extends along the first horizontal direction and has multiple discharge ports along its length.
10. An electric two-wheeled vehicle characterized by comprising: Includes the active explosion-proof battery as described in any one of claims 1 to 9.