Coin Cell Bracket With Elastic Arms for Shock-Resistant Retention
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Solution Overview
Problem
Conventional battery brackets in electronic devices, such as credit card processing terminals, lack robust attachment capabilities and adequate battery retention, leading to potential power loss and device failure due to battery displacement or mechanical failure from shocks and drops.
Innovation Solution
A battery bracket design featuring a printed circuit board (PCB) with three feet and engagement arms that encircle a coin cell battery, providing enhanced attachment and holding power through elastic engagement arms that extend towards the battery, ensuring secure contact and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional battery bracket is used, then the device structure is simple, but the battery retention and attachment capability are insufficient
Solution Approach 1:
The patent employs elastic engagement arms that can dynamically adjust their position and apply continuous pressure to the battery. These arms are made of elastic material allowing them to bend and flex, maintaining constant contact force with the battery surface even under external shocks or vibrations, thereby improving battery retention without requiring complex mechanical fastening mechanisms
Solution Approach 2:
The patent changes the physical parameter of the engagement arms by using elastic material with specific mechanical properties. The elasticity parameter allows the arms to deform under load and return to their original position, creating a self-adjusting retention mechanism that improves reliability without increasing overall structural complexity
2Volume of moving object
If the battery bracket is made compact, then the device size is reduced, but the attachment robustness may be compromised
Solution Approach 1:
The patent applies local quality by concentrating the attachment function in specific localized areas through the engagement arms that directly contact the battery. Rather than distributing structural complexity throughout the entire bracket, the elastic arms provide focused, high-strength retention at critical contact points, maintaining compact overall dimensions while ensuring robust local attachment
3Reliability
If the engagement arms are elastic and extend towards the battery, then battery contact and retention are improved, but the manufacturing complexity increases
Solution Approach 1:
The patent merges multiple functions into the engagement arms: structural support, elastic deformation for pressure application, electrical contact conduction, and mechanical retention. By combining these functions into a single integrated component rather than separate parts, the design improves battery contact reliability while actually simplifying manufacturing compared to assembling multiple discrete components
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 enhances battery retention and attachment to the PCB, improving the device's reliability and reducing the risk of power loss and mechanical failure, even under conditions of jarring or dropping.
Implementation Method 1
A first engagement arm is coupled to the cover and biased through the first contact hole and extends away from the second plane
Data Source
AI summary
Various aspects of the disclosure generally relate to a battery bracket for electronic devices. In one aspect, an electronic component includes a printed circuit board (PCB) having a first and a second battery contact. Connected to the PCB is a battery bracket having a first, a second and a third foot, each foot extending in a first plane. At least one of the feet is connected to the first battery contact. Each of the first, second and third feet are coupled to a first, a second and a third sidewall, respectively.