Battery Module Connecting Structure Without Bolt Loosening Heat
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Solution Overview
Problem
In battery systems, the use of bolts for electrical connections between conducting members and battery modules can lead to loosening, increasing connection impedance, heat generation, and potentially causing overheating and fires.
Innovation Solution
A connecting structure featuring a resiliently mounted conducting member within a U-shaped groove and accommodating cavity, eliminating the need for bolts by using a bridging portion and resilient sections to ensure stable electrical connections without bolt torque issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bolts are used to fix conducting members to battery modules, then electrical connections can be established, but the bolts are easy to loosen causing increased connection impedance and heat generation
Solution Approach 1:
The patent replaces the traditional bolt-mechanical fastening system with an elastic clamping structure that uses elastic deformation to maintain continuous contact pressure. The elastic component deforms to clamp the conducting member against the battery module terminal, providing stable electrical connection without loose bolts, thereby eliminating the heat generation problem associated with bolt loosening while maintaining reliable electrical connection
2Reliability
If bolts are used to secure conducting members, then electrical connections are achieved, but production efficiency is reduced due to complex assembly processes
Solution Approach 1:
The patent divides the connection structure into separate functional components: a mounting structure with an elastic component and a conducting member. The elastic component is integrated into the mounting structure as a separate element that provides clamping force, allowing for simplified assembly where the conducting member is simply placed and clamped without requiring bolt tightening operations, thus improving production efficiency while maintaining connection reliability
3Reliability
If resilient portions are added to the connecting structure, then connection stability is improved, but device complexity increases
Solution Approach 1:
The patent merges the elastic component with the mounting structure to form an integrated assembly. The elastic component is positioned within the mounting structure and works together with the conducting member to provide automatic clamping. This integration reduces the number of separate parts and simplifies the overall structure compared to traditional bolted connections with multiple washers, nuts, and fastening components, thereby improving connection stability without significantly increasing device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution prevents overheating and fires by maintaining stable electrical connections, improves production efficiency through quick and secure assembly, and enhances the safety and energy density of battery modules.
Implementation Method 1
Each of the first plate and the second plate is provided with a resilient portion, the resilient portion has a first sub-section protruding towards the accommodating cavity
Data Source
AI summary
A connecting structure, a battery module, an energy storage apparatus, and an electronic device are provided. The connecting structure includes a connecting assembly and a conducting member. The connecting assembly includes a first connecting member and a second connecting member. The first connecting member includes a first bending portion, a first connecting portion, and a second connecting portion. The first connecting portion, the first bending portion, and the second connecting portion surround a space to define an inserting groove. The second connecting member is mounted in the inserting groove and resiliently abuts against the first connecting portion and the second connecting portion. The second connecting member includes a bridging portion, a first plate, and a second plate. Each of the first plate and the second plate is provided with a resilient portion, the resilient portion has a first sub-section.