Battery Pack Slide-Fit Assembly for Anti-Shaking Stability
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Solution Overview
Problem
Conventional battery packs for cordless power tools have complex assembly structures that fail to effectively prevent internal shaking, leading to instability and potential electrical issues.
Innovation Solution
A battery pack design featuring a housing with a battery cell, framework, and circuit board connected in a radial direction, utilizing electrical connectors for secure electrical and mechanical connections, and a limiting slide fit within the housing to prevent shaking, while maintaining a compact and safe structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a complicated assembly structure is adopted, then the battery pack can avoid shaking, but the structure becomes complex and assembly becomes difficult
Solution Approach 1:
The patent combines the battery cell, framework, and circuit board into an integrally connected assembly structure. This merging of components simplifies the overall structure while maintaining stability, as the integrated design eliminates the need for separate complex assembly mechanisms to prevent shaking.
Solution Approach 2:
The patent introduces a limiting slide fit mechanism between the integrally connected components and the housing inner cavity. This intermediary sliding connection provides anti-shaking functionality without requiring complex assembly structures, as the slide fit naturally limits movement while simplifying the overall design.
2Volume of moving object
If components are closely arranged to reduce size, then compactness is improved, but electrical insulation may be compromised
Solution Approach 1:
The patent uses the limiting slide fit mechanism as an intermediary element that maintains electrical insulation between closely arranged components. The slide fit connection provides both mechanical support and electrical isolation, allowing compact arrangement while preserving insulation reliability.
Solution Approach 2:
The patent applies localized insulation measures at critical interfaces where components are closely arranged. The limiting slide fit provides targeted insulation at specific locations rather than requiring uniform insulation throughout, enabling compact design while maintaining electrical safety.
Data Source
AI summary
A battery pack includes a housing; a battery cell, a framework and a circuit board that are connected sequentially in a radial direction of the battery cell; a first electrical connector and a second electrical connector that are respectively arranged at positive and negative electrodes in an axial direction of the battery cell and separately connected to the circuit board; and third electrical connectors that are connected to the circuit board and configured to be electrically connected to an electrical device to supply power from the battery cell to the electrical device through the third electrical connectors, where the battery cell, the framework and the circuit board that are integrally connected, the first electrical connector, the second electrical connector, and the third electrical connectors are in a limiting slide fit with the inner cavity of the housing.