Button Cell Holder with Elastic Biasing Slit
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Solution Overview
Problem
Existing cell holders that prevent accidental ejection of button cells are complex and inconvenient for easy removal, risking the cell being lost during ejection.
Innovation Solution
A cell holder design featuring a compartment with an opening side and elastic pieces on the upper, lower, and lateral sides, including a slit that biases the cell to prevent unintentional ejection and allows easy removal by a plate tool along the slit, ensuring the cell is not ejected quickly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stopper is used to securely hold the button cell in the compartment, then the button cell is prevented from being slipped out unintentionally, but the cell holder structure becomes complex and requires additional engagement parts
Solution Approach 1:
The invention extracts the stopper component from the cell holder structure and replaces it with a simplified compartment design that uses the compartment walls themselves to engage with the button cell. The compartment includes engagement protrusions formed directly on the compartment walls that interact with the button cell peripheral surface, eliminating the need for separate stopper components and their associated engagement mechanisms.
Solution Approach 2:
The invention merges the cell holding function directly into the compartment structure by forming engagement protrusions on the compartment walls. This integrates the retention mechanism into the compartment itself rather than using separate components, thereby simplifying the overall structure while maintaining reliable prevention of unintentional cell ejection.
2Reliability
If a stopper with engagement parts is used to secure the cell holder to the electronics device, then the button cell is securely held, but the overall system complexity increases due to additional engagement mechanisms
Solution Approach 1:
The invention removes the complex stopper and engagement part system and replaces it with a simplified mounting mechanism where the compartment directly engages with the electronics device. The compartment walls include engagement features that interface directly with corresponding features on the device, eliminating intermediate stopper components and their engagement mechanisms.
Solution Approach 2:
The invention combines the cell holding and device mounting functions into the compartment structure itself. The compartment includes both cell engagement protrusions and device engagement features integrated into its walls, merging multiple functions into a single structural element and thereby reducing overall system complexity.
3Reliability
If the button cell is held firmly by the compartment walls, then accidental ejection is prevented, but the cell becomes difficult to remove requiring complex ejection mechanisms
Solution Approach 1:
The invention segments the engagement mechanism into distinct protrusions on the compartment walls that engage with specific portions of the button cell. This segmentation allows for controlled engagement where the cell is firmly held during normal operation but can be easily released by applying force to specific locations on the cell that correspond to the engagement points.
Solution Approach 2:
The invention inverts the traditional approach by having the compartment walls actively engage the cell through protrusions rather than using passive retention. This active engagement design allows the cell to be easily removed by simply overcoming the engagement protrusions, making removal as easy as pressing the cell against the elastic piece without requiring complex ejection mechanisms.
4Device complexity
If a simple compartment design is used without additional retention components, then the structure is simplified, but the button cell may be slipped out unintentionally
Solution Approach 1:
The invention applies local quality by forming engagement protrusions at specific locations on the compartment walls that correspond to the button cell peripheral surface. These localized engagement features provide reliable prevention of unintentional ejection only where needed, rather than requiring a complex overall structure. The protrusions are strategically positioned to engage the cell at critical points while maintaining a simple overall compartment design.
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
The design provides a simple and secure method to prevent accidental ejection of button cells while facilitating easy removal, reducing the risk of the cell being lost.
Implementation Method 1
an elastic piece for biasing at least one of the flat surfaces or the side surface of the button cell
Data Source
AI summary
A compartment accommodates a button cell. The compartment includes an opening side through which the button cell is loaded or ejected from a side surface of the buttons cell. The compartment includes an upper side, a lower side, and lateral sides for holding flat surfaces and the side surface of the button cell. The compartment includes elastic pieces for biasing at least one of the flat surfaces or the side surface of the button cell. A slit is disposed on at least one of the upper side, the lower side, or the lateral sides. The slit extends from a side opposite to the opening side toward the opening side. The slit extends to a part of the button cell.