Battery Connector Spring Arm and Strengtheners
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Solution Overview
Problem
Existing button cell battery connectors struggle to securely retain batteries due to limited space, resulting in insufficient holding force from short spring sections, which can lead to instability and improper mounting.
Innovation Solution
A battery connector design featuring a dielectric housing with a base, pair of spring strengtheners, and a conductive contact with a spring arm that elastically deforms to securely engage the battery's bottom face, providing enhanced retention through the combined force of the spring arm and spring strengtheners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the battery connector is made compact to meet low profile requirements, then the connector height is reduced, but the spring section becomes too short to provide sufficient holding force
Solution Approach 1:
The spring component is divided into two separate elements: a spring arm secured to the dielectric housing and a pair of spring strengtheners extending from the base. This segmentation allows each component to contribute to the holding force independently, providing sufficient total force even when the overall connector height is limited.
Solution Approach 2:
The spring strengtheners extend upwardly from the base in a vertical dimension, while the spring arm inclines upwardly from the retaining section. This multi-dimensional arrangement maximizes the use of available space within the compact connector height, allowing both spring components to exert force on the battery bottom face without increasing overall connector height.
2Force
If the spring section is made long to provide sufficient holding force, then the holding force is improved, but the connector height increases
Solution Approach 1:
By dividing the spring function into two separate components (spring arm and spring strengtheners), the design achieves sufficient holding force without requiring a single long spring that would increase connector height. Each component can be optimized for its specific function within the available vertical space.
Solution Approach 2:
The spring arm is designed to incline upwardly from the retaining section, allowing it to engage the battery bottom face at an optimal angle. This dynamic positioning enables the spring arm to exert effective holding force while occupying minimal vertical space within the connector housing.
3Volume of stationary object
If the space in the connector is narrow to meet compact requirements, then the connector size is reduced, but the spring section cannot be made long enough to provide sufficient force
Solution Approach 1:
The spring function is segmented into two components that can be arranged within the narrow connector space. The spring strengtheners extend vertically from the base while the spring arm inclines from the retaining section, allowing both to coexist in limited space and collectively provide sufficient force.
Solution Approach 2:
The spring strengtheners are positioned to extend upwardly from the base in areas where space is available, while the spring arm is positioned to incline from the retaining section. This local optimization of spring component placement maximizes the use of available space within the narrow connector while ensuring both components can exert force on the battery.
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 effectively stabilizes the battery by distributing holding force across the spring arm and strengtheners, ensuring secure retention and preventing accidental dislodging, while protecting the spring components from deformation.
Implementation Method 1
the spring arm and the pair of spring strengtheners are all elastically deformed, they corporately exert strength against the bottom of the battery
Data Source
AI summary
A battery connector (1) comprises a dielectric housing (2) and a first conductive contact (4). The dielectric housing (2) comprises a cylindrical receiving cavity, a base (20), holding means (24) formed toward an upper section of the receiving cavity for engaging with the top face of the accommodated battery (5) to prevent the battery (5) from coming off, and a pair of spring strengtheners (22) extending upwardly from said base (20) for abutting a bottom face of the accommodated battery (5). The first conductive contact (4) comprises a first retaining section (40) secured in said dielectric housing (2) at a peripheral area of said base (20), a spring arm (42) inclining upwardly from said retaining section (40). The spring arm (42) extends between said pair of spring strengtheners (22), and the distal end of said spring arm (42) is free.