Sliding Pressure-Regulating Valve Mount for Serviceable Power Modules
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Solution Overview
Problem
Existing power storage modules with integrated pressure-regulating valves face challenges in maintainability due to welded construction, making it impossible to remove or replace the valve body without disassembling the entire module.
Innovation Solution
A pressure-regulating valve design for power storage modules featuring a case with a sealing surface and attaching portions that can be slid along a predetermined direction to lock or unlock with the power storage device, allowing for easy attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the case member is welded to the base member to fix the pressure-regulating valve, then the valve is securely fixed, but it becomes impossible to remove or replace the valve body
Solution Approach 1:
The pressure-regulating valve is divided into separable components: the case and the cover. The cover can be removed to access and replace the valve body, while the case remains fixed to the base member. This segmentation allows maintenance without complete disassembly, resolving the contradiction between secure fixation and ease of repair.
Solution Approach 2:
The valve body is extracted as a separate, replaceable component from the case. By making the valve body removable through the cover opening, the design enables maintenance and replacement of the valve body without removing the entire pressure-regulating valve assembly from the base member.
2Reliability
If the pressure-regulating valve is integrated into the power storage module with welded construction, then the structure is compact and reliable, but inspection and maintenance require disassembly of the entire module
Solution Approach 1:
The pressure-regulating valve is segmented into the fixed case (welded to base member for reliability) and the removable cover (providing access to valve body). This segmentation allows the structural integrity to be maintained through welding while enabling easy access for inspection and maintenance without disassembling the entire power storage module.
Solution Approach 2:
The cover is designed as a separate, removable component that can be taken off to access the valve body for inspection and maintenance. This extraction of the cover function from the integrated structure reduces disassembly complexity while maintaining structural reliability through the welded case-base member connection.
3Ease of operation
If the case is made with a sealing surface and attaching portion for sliding attachment, then the valve can be easily attached and detached, but the sealing reliability may be compromised
Solution Approach 1:
A sealing member (such as a gasket or O-ring) is introduced as an intermediary element between the case's sealing surface and the cover. This sealing member ensures reliable sealing while allowing the cover to be easily attached and detached through sliding motion, resolving the contradiction between attachment ease and sealing reliability.
Data Source
AI summary
A pressure-regulating valve for a power storage module is a pressure-regulating valve for a power storage module in which a case accommodating a valve body in a valve chamber is attached to a power storage device (10), and the case has a sealing surface that is provided with a sealing member and is to contact the power storage device, and an attaching portion attachable to the power storage device by moving along a predetermined slide direction along the sealing surface.