Explosion-proof battery and electric two-wheeled vehicle

By setting up an isolation plate and a flow channel inside the battery box, the aerosol is sprayed into the cell module in a concentrated manner, which solves the problem of aerosol splashing in the existing technology and improves the flame retardant and explosion-proof effect of the battery and the safety of the components.

CN224520090UActive Publication Date: 2026-07-17HUNAN DUDU INTELLIGENT TECH CO LTD
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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

Technical Problem

Existing battery-powered thermal aerosol fire extinguishers produce aerosols that splash everywhere, resulting in poor flame retardant and explosion-proof performance and potentially damaging other components inside the battery.

Method used

An isolation plate and a flow channel are installed inside the battery box. After the thermal aerosol fire extinguisher is activated, the aerosol is concentrated and sprayed onto the cell module through the flow channel. The discharge port faces the cell module to reduce aerosol splashing.

Benefits of technology

This achieves centralized flame retardancy of the battery cell module, improves the flame retardant and explosion-proof effect, and reduces the impact on other components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224520090U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of explosion-proof battery and electric two-wheeled vehicle, including box, electric core module and flame-retardant module, electric core module is located in box, flame-retardant module includes isolation plate and hot gas aerosol fire extinguisher, isolation plate is located in box and covers the top of electric core module, isolation plate is equipped with flow channel, the bottom of flow channel is equipped with the discharge port towards electric core module, hot gas aerosol fire extinguisher is located in box, and it is communicated with flow channel, wherein, hot gas aerosol fire extinguisher can input aerosol into flow channel after activation.The explosion-proof battery and electric two-wheeled vehicle of the utility model can concentrate the flame-retardant of electric core module, and the flame-retardant explosion-proof effect is better, and furthermore, it can reduce aerosol splashing on other components in battery and cause influence to other components.
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Claims

1. An explosion-proof 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 thermal aerosol fire extinguisher, once activated, can input aerosol into the flow channel.

2. The explosion-proof battery according to claim 1, characterized in that The thermal aerosol fire extinguisher is located at the top of the isolation plate.

3. The explosion-proof battery of claim 2, wherein, The isolation plate is provided with heat conduction holes running vertically through it. The thermal aerosol fire extinguisher is located above the heat conduction holes and covers them. The bottom of the thermal aerosol fire extinguisher is provided with a temperature sensor.

4. The explosion-proof 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.

5. The explosion-proof 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.

6. The explosion-proof battery of claim 5, wherein, A tab assembly is provided between two adjacent battery cells. The tab assembly includes two mating tabs. The two tabs are respectively connected to two adjacent battery cells. Among the three adjacent battery cells, the two tab assemblies connected to the middle battery cell are arranged along a second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction. Two flow channels are provided and are arranged along the second horizontal direction.

7. The explosion-proof battery of claim 6, wherein The discharge port corresponds one-to-one with the tab assembly, and the discharge port faces the corresponding tab assembly.

8. The explosion-proof battery of claim 6, wherein, The battery cell module also includes: Multiple clamping structures are provided, each clamping structure including two clamping pieces, which are respectively attached to opposite sides of the two tabs of the tab assembly, and fasteners are installed between the two clamping pieces.

9. The explosion-proof battery of claim 8, wherein, The battery cell module also includes: Mounting plate, the battery cell is located below the mounting plate, the clamping structure is located above the mounting plate, the mounting plate is provided with multiple clearance grooves, and the electrode tab passes through the clearance grooves.

10. An electric two-wheeled vehicle characterized by comprising: Includes the explosion-proof battery as described in any one of claims 1 to 9.