Battery Firefighting Pipe Restraint for Stable Safety Venting
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Solution Overview
Problem
Existing battery technologies lack effective safety measures to stabilize firefighting pipes, leading to instability and potential hazards during operation, especially in electric vehicles.
Innovation Solution
A battery design incorporating a firefighting pipe with a first restraint member and a fixing member featuring a second restraint member, allowing for stable mounting and directionally restricted placement within the battery, enhancing safety through reliable firefighting and temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a firefighting pipe is added to the battery to discharge firefighting medium when pressure relief mechanism is actuated, then temperature regulation and safety performance are improved, but the stability and positioning of the firefighting pipe deteriorate due to lack of effective fixing structures
Solution Approach 1:
The fixing structure is divided into multiple independent components: a fixing member with clamping structure, a first restraint member on the firefighting pipe, and a second restraint member on the pressure relief mechanism. This segmentation allows each component to perform its specific function while collectively providing stable positioning of the firefighting pipe through distributed constraint points.
Solution Approach 2:
The first restraint member and second restraint member are designed to fit together in a nested configuration, where the restraint members are inserted into corresponding receptacles or clamp onto each other. This nesting arrangement provides compact, stable positioning while allowing easy assembly and disassembly for maintenance.
2Device complexity
If the firefighting pipe is freely positioned without restraint members, then device complexity is reduced, but the reliability of firefighting medium discharge and temperature regulation deteriorates due to potential pipe displacement
Solution Approach 1:
The restraint members are designed to be self-aligning and self-locking through their geometric shapes and material properties. The first restraint member on the firefighting pipe automatically engages with the second restraint member on the pressure relief mechanism without requiring external adjustment or complex actuation mechanisms, providing reliable positioning through inherent structural features.
Solution Approach 2:
The fixing structure utilizes elastic deformation and friction parameters to achieve reliable positioning. The restraint members are designed with appropriate elasticity and surface friction characteristics that allow them to maintain firm engagement under varying thermal and pressure conditions, ensuring consistent firefighting medium discharge reliability without complex mechanical adjustments.
Data Source
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AI summary
This application provides a battery, an electric apparatus, and a method and an apparatus for manufacturing battery, so as to enhance safety performance of the battery. The battery includes: a battery cell (20), where a first wall (201) of the battery cell (20) is provided with a pressure relief mechanism (213); a firefighting pipe (30) configured to accommodate a firefighting medium and discharge the firefighting medium when the pressure relief mechanism (213) is actuated; and a fixing member (40) disposed between the first wall (201) and the firefighting pipe (30). The firefighting pipe (30) includes a first restraint member (310), and the fixing member (40) includes a second restraint member (410), where the two restraint members fit with each other to restrict the firefighting pipe (30) in a first direction (x) and a second direction (y), the first direction (x) is perpendicular to the first wall (201), and the second direction (y) is parallel to the first wall (201) and perpendicular to an extending direction of the firefighting pipe (30). In this solution, the firefighting pipeline can be stably disposed in the battery, so as to enhance the safety performance of the battery.