Button Cell Housing Assembly With Sealed Conductive Through-Holes

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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 settings required and minimizing the risk of leakage, while allowing for flexible electrical connections through one or two conductive parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple sealing settings are used to ensure sealability, then sealing reliability is improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvesealing reliabilityVSAvoidsealing structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the sealing function and electrical connection function into a single integrated conductive part. The conductive part simultaneously blocks the through hole to prevent leakage and provides electrical connection between the housing and the cell electrode, eliminating the need for separate sealing components and reducing overall device complexity while maintaining sealing reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The conductive part is designed to perform multiple functions: it serves as both a sealing element that blocks the through hole and an electrical conductor that connects the housing to the cell electrode. This multi-functional design reduces the number of components needed and simplifies the sealing structure while ensuring reliable sealing

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple sealing settings are implemented, then leakage risk is reduced, but ease of manufacture deteriorates

Engineering Contradiction:
Improveleakage preventionVSAvoidsealing process simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines sealing and electrical connection into a single conductive part that is installed in one step. This eliminates the need for multiple separate sealing operations and reduces manufacturing complexity, making the production process simpler while maintaining effective leakage prevention

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the sealing function from multiple separate components and concentrates it into a single conductive part. This simplification reduces the number of sealing operations required during manufacturing while maintaining effective leakage prevention through the integrated conductive component

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20240429510A1Housing assembly of button cell, button cell and electronic product
Publication Date: 2024.12.26 ZHUHAI COSMX BATTERY CO LTD
  • US20240429510A1 patent drawing
  • US20240429510A1 patent drawing
  • US20240429510A1 patent drawing

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.