Battery Cover Plate Interference-Fit Assembly for Stable Insulation
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Solution Overview
Problem
The connection between the cover plate and the insulating piece in battery cover plate assemblies tends to become loose over time due to limitations in their connection mechanism.
Innovation Solution
A battery cover plate assembly design featuring a cover plate with a mounting hole and an insulating piece with a protrusion in an interference fit, where the area of the opening of the mounting hole is less than the maximum cross-sectional area, ensuring a stable and reliable connection through the protrusion's insertion and interference fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple connection structure is used between the cover plate and insulating piece, then the device complexity is reduced, but the connection stability deteriorates over time
Solution Approach 1:
The protrusion of the insulating piece is inserted into the mounting hole of the cover plate, forming a nested connection structure where one component is placed inside another. This nesting arrangement provides stable connection without requiring complex external fastening mechanisms.
Solution Approach 2:
The connection is enhanced by utilizing the depth dimension of the mounting hole. The hole extends into the cover plate, allowing the protrusion to be secured not just at the surface but at multiple depths, transforming a two-dimensional surface connection into a three-dimensional embedded connection for improved stability.
2Stability of the object's composition
If an interference fit connection is used between the protrusion and mounting hole, then the connection stability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The interference fit connection utilizes controlled dimensional parameters of the protrusion and mounting hole. By carefully designing the diameter and depth parameters within acceptable tolerances, the connection achieves high stability through interference fit while maintaining manufacturability with standard precision capabilities.
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
This design enhances the connection stability between the cover plate and the insulating piece, preventing loose connections after long-term use and ensuring safe and improved performance of the battery cover plate assembly.
Implementation Method 1
One of the first connection portion and the second connection portion is a mounting hole and the other one is a protrusion, and the protrusion is in an interference fit with the mounting hole
Data Source
AI summary
A battery cover plate assembly, a battery, and a manufacturing method of a battery cover plate assembly are provided. The battery cover plate assembly includes: a cover plate provided with a first connection portion and an insulating piece disposed on one side of the cover plate. The insulating piece is provided with a second connection portion, and the first connection portion is connected to the second connection portion. One of the first connection portion and the second connection portion is a mounting hole and the other one is a protrusion, and the protrusion is in an interference fit with the mounting hole. An area of an opening of the mounting hole is less than a maximum area of a cross section of the mounting hole, and the protrusion is inserted into the mounting hole through the opening of the mounting hole.