Coin Cell Retaining Cover for Jam-Free Battery Access
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Solution Overview
Problem
Existing battery retaining devices for coin cell batteries in electronic equipment are difficult to use and can become jammed, making access to the battery challenging.
Innovation Solution
A battery retaining device with a base and a depressible cover that includes a retainer and a detent mechanism, allowing for secure battery installation and easy removal through a flexible cover design that engages and disengages with a shoulder, facilitated by a tool-operated slot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a coin is used to turn the battery cover to release it, then the battery can be removed, but the device becomes difficult to use and can become jamed
Solution Approach 1:
The patent replaces the traditional coin-based rotational mechanism with a linear push-button release mechanism. The button (24) directly pushes the retainer (22) to release the battery, eliminating complex rotational movements and potential jamming issues associated with the previous mechanical system.
Solution Approach 2:
The patent extracts the release function from a separate tool (coin) and integrates it into the device itself through the push-button mechanism. The button is part of the battery compartment structure, allowing users to release the battery without external tools, thereby improving ease of operation while maintaining reliability.
2Reliability
If the battery is permanently fixed to the product, then security is improved, but battery replacement becomes impossible
Solution Approach 1:
The patent implements a dynamic retention system where the retainer (22) can switch between engaged and disengaged states. The retainer is normally held in position by the button spring (26) but can be released by pressing the button, allowing the battery to be securely held during operation but easily removed when needed.
Solution Approach 2:
The push-button mechanism is self-contained within the battery compartment, allowing users to independently release the battery without requiring tools or external assistance. The spring-loaded button automatically returns to its original position after release, providing a complete self-service battery replacement system.
3Reliability
If a retainer mechanism is added to secure the battery, then battery retention is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into the retainer assembly: the retainer (22) both secures the battery in place and provides the release mechanism through its interaction with the button (24). The button spring (26) and retainer work as an integrated system, reducing the need for separate components and simplifying the overall structure.
Solution Approach 2:
The patent employs a flexible button spring (26) that provides the necessary mechanical force for retention and release. This flexible element replaces more complex rigid spring mechanisms or cam systems, achieving reliable battery retention with minimal structural 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
Provides reliable and accessible battery installation and removal processes, ensuring secure retention and easy access without jamming issues.
Implementation Method 1
The detent may comprise at least one of a hook, a spring-biased ball plunger, or a latch
Data Source
AI summary
A device includes a base and a depressible cover. The base defines a battery opening in which to receive a battery having the form factor of a coin cell The base includes a retainer located proximate to the battery opening. The depressible cover is disposed in the battery opening and is secured in place against the retainer to prevent removal of the battery from the base while the cover is coupled to the base. The cover includes a detent and a body portion, wherein the cover is releasably secured to the base upon engagement of the body portion with the retainer and engagement of the detent with a shoulder of the base.