Floating Head Pressing Device for Uniform Step Battery Pressure
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Solution Overview
Problem
Conventional pressing devices for step type batteries with thickness tolerance fail to ensure uniform pressure across step surfaces, affecting battery quality.
Innovation Solution
A pressing device with side-by-side floating heads, a positioning member, and elastic members between the cover plate and floating heads, allowing the cover plate to slide and ensure uniform pressure on each step surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a flat-plate type pressing device is used for step type cell, then the device structure is simple, but uniform pressure cannot be ensured on each step surface due to thickness tolerance
Solution Approach 1:
The pressing device divides the pressing function into multiple independent floating heads (at least two), each capable of independent vertical movement. Each floating head is equipped with its own elastic member, allowing segmented adaptation to different step heights and thickness tolerances, thereby ensuring uniform pressure distribution across all step surfaces.
Solution Approach 2:
The floating heads are designed to be movable vertically along the pressing direction rather than fixed. This dynamic structure allows each floating head to adjust its position independently according to the actual step height and thickness of the workpiece, maintaining constant elastic pressure on each step surface throughout the pressing process.
2Ease of operation
If conventional pressing device is used for step type cell with thickness tolerance, then the device is easy to operate, but the quality of step type cell is affected due to non-uniform pressure
Solution Approach 1:
Each floating head is equipped with an elastic member that provides self-adjusting pressure. The elastic member automatically compensates for thickness variations and step height differences without requiring manual adjustment or complex control systems, maintaining constant pressure on each step surface while keeping the operation simple.
3Adaptability or versatility
If floating heads are arranged side by side without positioning member, then the device can adapt to step type cell, but the floating heads may sway and loosen affecting pressing precision
Solution Approach 1:
The positioning member provides localized constraint for each floating head, allowing vertical movement for pressure application while preventing lateral swaying and loosening. This selective freedom of movement maintains both adaptability to step type cells and positional stability during pressing.
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 device ensures uniform pressure on step type batteries with thickness tolerance, improving battery quality and ease of operation.
Implementation Method 1
elastic members, each elastic member being provided between the cover plate and the corresponding floating head so as to make the cover plate slide up and down relative to each floating head
Data Source
AI summary
The present disclosure provides a pressing device which includes: at least two floating heads which are arranged side by side; a positioning member connecting with each floating head and defining a position of each floating head; a cover plate positioned above each floating head; and elastic members, each elastic member being provided between the cover plate and the corresponding floating head so as to make the cover plate slide up and down relative to each floating head. The pressing device can be adapted to a step type cell or a step type battery having a certain tolerance in thickness and can ensure that every step surface of the step type cell or the step type battery is uniformly pressed, thereby improving the quality of the battery.