Battery Holder With Two-Stage Spring Release Mechanism
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Solution Overview
Problem
Existing battery holders for button-type batteries face issues with maintaining good electrical contact while ensuring easy release, and preventing short circuits between positive and negative terminals due to external forces.
Innovation Solution
A battery holder design featuring positive and negative terminals with distinct spring elements providing two-stage elastic forces for easy battery release, and a distance control mechanism to prevent short circuits by limiting movement of the positive terminal's vertical pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If long spring elements are used in the negative terminal to lift the battery during release, then the battery can be lifted up, but the elastic force is insufficient to cause the battery to leave the battery holder
Solution Approach 1:
The negative terminal is divided into multiple spring elements (first spring element and second spring element) with different lengths and elastic forces. The first spring element provides stronger elastic force for initial battery lifting, while the second spring element provides continued elastic force to ensure the battery completely leaves the holder.
Solution Approach 2:
Different regions of the negative terminal have different spring element characteristics. The first spring element positioned closer to the battery engaging section has different elastic properties than the second spring element, creating localized quality variations that optimize both lifting and release functions.
2Ease of operation
If the positive terminal has two spaced vertical pieces with one free from the holder body, then easy battery release is achieved, but the free vertical piece may lean towards the positive terminal causing short circuit
Solution Approach 1:
A limiting structure is introduced as an intermediary element between the second vertical piece and the positive terminal. This limiting structure prevents the second vertical piece from leaning too far towards the positive terminal, thereby preventing short circuit while maintaining the ease of battery release function.
Solution Approach 2:
The limiting structure provides preliminary restriction on the movement of the second vertical piece, preventing it from reaching a position where short circuit could occur. This anti-action is built into the structure before any problematic movement can happen.
3Ease of operation
If spring elements are designed to provide strong elastic force for battery release, then easy battery removal is achieved, but the structure becomes more complex
Solution Approach 1:
Multiple spring elements are integrated into a single negative terminal structure, combining lifting and release functions into one unified component. This merging approach provides the needed elastic forces while avoiding the complexity of separate mechanisms for each function.
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
Ensures reliable electrical contact and easy battery removal with two-stage elastic forces, preventing short circuits even under external forces.
Implementation Method 1
short and long spring elements extending from the battery engaging section towards the board connecting section... provide two-stage elastic forces corresponding to two different released position of the battery
Data Source
AI summary
A battery holder for a button-type battery (1) includes a holder body having a base wall (100) thereof for receiving the battery, and positive and negative terminals (20, 30) assembled to the holder body. The negative terminal has short and long spring elements (311, 315) defining first and second supporting point (311A, 315B) respectively, such that in an initial released position, the button-type battery is lifted up by the first and second supporting points bearing against the base wall, and in a fully released position, that battery is lifted by the second supporting point against the base wall with the first supporting point leaving away from the base wall. The above spring elements provides two-stage elastic forces, for ease of the user to release the battery from the battery holder.