Button Cell Housing Assembly With Sealed Conductive Feedthroughs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Button cells suffer from poor sealability, leading to potential safety hazards such as liquid leakage, which adversely affects their quality and performance.
Innovation Solution
A housing assembly for button cells is designed with a housing and conductive parts, featuring through holes that are sealed and insulated, reducing the number of sealing positions required and minimizing the risk of leakage, while allowing for flexible electrical connections through one or two conductive parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sealing methods are used for button cells, then multiple sealing positions are required, but this increases the complexity of sealing and the risk of leakage
Solution Approach 1:
The patent combines the sealing function and electrical connection function into a single integrated structure. The conductive part serves dual purposes: it provides the electrical connection between terminals while simultaneously forming the seal with the housing through interference fit or deformation, eliminating the need for separate sealing components and reducing the number of sealing positions.
Solution Approach 2:
The conductive part is designed to perform multiple functions: electrical conduction, sealing, and mechanical fixation. By making the conductive part deformable, it can adapt to different housing geometries and provide reliable sealing while maintaining electrical connectivity, thus reducing overall device complexity.
2Reliability
If traditional sealing methods are used for button cells, then multiple sealing positions are required, but this increases the difficulty of sealing and leakage risk
Solution Approach 1:
The patent merges the sealing operation with the electrical connection operation into a single manufacturing step. The conductive part is inserted into the housing and automatically forms a seal through interference fit or deformation, eliminating the need for separate sealing processes such as adhesive application or mechanical sealing installation.
Solution Approach 2:
The conductive part performs self-sealing through its own deformation or interference fit with the housing. The material properties and geometric design of the conductive part enable it to automatically form a tight seal without requiring additional sealing materials or complex assembly operations, thereby simplifying the manufacturing process.
3Reliability
If conductive parts are added to seal through holes, then sealability is improved, but the device structure becomes more complex
Solution Approach 1:
The conductive part is designed as a multi-functional component that simultaneously provides electrical connection and sealing. By integrating these two functions into a single element, the patent avoids adding separate sealing components, thus maintaining device simplicity while achieving reliable sealing.
Solution Approach 2:
The patent utilizes changes in the physical parameters of the conductive part, such as material deformability, elasticity, or interference fit characteristics, to enable sealing functionality. By carefully selecting material properties and geometric parameters, the conductive part can adapt to the housing and form a reliable seal without requiring additional structural elements.
Data Source
AI summary
Embodiments of the present invention provide a housing assembly of button cell, a button cell and an electronic product. The housing assembly of button cell includes: a housing and a conductive part, the housing having a holding cavity that is capable of holding a cell of the button cell, the cell having a first tab and a second tab, the housing being provided with a through hole, the conductive part being positioned at and blocking the through hole, and the conductive part and the through hole being sealed and insulated; where, the number of the conductive part is one or two, and when the number of the conductive part is two, the housing is provided with two through holes, where the conductive parts correspond to the through holes one by one. It is beneficial to improving sealability of the housing assembly of button cell.