Dry-battery housing with segmented electrode terminal
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Solution Overview
Problem
Conventional dry-battery housings with spring-like negative electrodes are prone to deformation and difficult to replace due to strong contact forces, making replacement cumbersome.
Innovation Solution
A dry-battery housing design featuring a single wire electrode terminal member with flange and partition plates that allow for easy insertion and removal, including a narrow space portion and engagement portion for secure fixation and easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a spring-like negative electrode is fixed to a concave-shaped housing unit to withstand strong contact force, then the electrode can cope with strong contact force of a dry battery, but the electrode becomes difficult to replace due to strong contact force and deformation
Solution Approach 1:
The housing unit is divided into multiple sections: a removable cap portion, a body portion, and a flange portion. The electrode terminal member is segmented with separate flange portions that can be independently inserted and fixed. This segmentation allows the electrode to be replaced by removing only the cap portion without affecting the entire housing structure.
Solution Approach 2:
The flange portion acts as an intermediary component between the electrode terminal member and the housing body. It provides a fixed insertion position and secure anchoring through engagement portions, while allowing the electrode to be replaced by removing the cap. The flange portion mediates between the need for strong contact force resistance and easy replacement.
2Device complexity
If the electrode terminal member is made of a single wire, then the structure is simplified, but the member becomes prone to deformation due to impact
Solution Approach 1:
The single wire electrode terminal member is divided into multiple functional segments: a body portion, flange portions at both ends, and engagement portions. This segmentation allows each part to perform its specific function while maintaining the overall simplicity of the single-wire construction. The flange portions provide stability against deformation without requiring a completely different structure.
Solution Approach 2:
Different portions of the single wire electrode terminal member have different local properties: the flange portions are designed for insertion and fixation, the engagement portions for securing to the housing, and the body portion for electrical connection. This local differentiation of quality allows the single wire to achieve both simplicity and deformation resistance through optimized local structures.
3Strength
If the electrode terminal member is fixed securely to withstand contact force, then the member can withstand strong contact force, but the member becomes difficult to remove for replacement
Solution Approach 1:
The housing and electrode terminal member are segmented into removable and fixed portions. The cap portion can be removed to access and replace the electrode, while the flange portions remain fixed to the housing body through engagement portions. This segmentation enables easy repair by removing only the cap while maintaining secure fixation of the electrode during operation.
Solution Approach 2:
The housing structure transitions from a completely fixed design to a dynamic design where the cap portion can be removed and reattached. This dynamic structure allows the electrode to be securely fixed during operation (with the cap in place) while enabling easy removal and replacement when needed by simply removing the cap portion.
Data Source
AI summary
A dry-battery housing includes an electrode terminal member made of a single wire, a dry-battery housing unit, a flange portion arranged so as to project at first side of the electrode terminal member, a first partition plate projecting along outside for first side of the electrode terminal member, a second partition plate projecting along outside for second of the electrode terminal member, a first fixing plate projecting from the first partition plate toward the second partition plate, a second fixing plate projecting from the second partition plate toward the first partition plate, a flange-root portion including a narrow space portion for allowing insertion and removal of a rim at the first side of the electrode terminal member and an engagement portion arranged between the narrow space portion of the flange-root portion and a border of an opening portion of the dry-battery housing.