Rechargeable Battery Shock Absorbing Yoke
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Solution Overview
Problem
Conventional rechargeable batteries are prone to damage from shock energy due to their hard plastic housings, which can transmit force to energy storage cells during falls, potentially causing damage.
Innovation Solution
A shock absorbing device with a deformable yoke-shaped element is integrated into the battery housing to absorb shock energy by deforming elastically or plastically, protecting the energy storage cells by distributing the impact across lateral edges and corners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a hard plastic housing is used for the rechargeable battery, then the housing provides structural strength and durability, but it transmits shock energy to the energy storage cells during falls, causing damage
Solution Approach 1:
The patent applies beforehand cushioning by integrating a shock-absorbing device into the housing structure that is designed to deform during impact events. The shock-absorbing element is positioned to engage with the housing and absorb shock energy before it reaches the energy storage cells, thereby protecting them from damage while maintaining the structural integrity of the hard plastic housing.
Solution Approach 2:
The shock-absorbing element acts as an intermediary between the hard plastic housing and the energy storage cells. When shock energy is transmitted to the housing, the shock-absorbing element deforms to absorb the energy, preventing direct transmission to the cells. This intermediary structure resolves the contradiction by decoupling the structural function of the hard housing from the protective function against shock.
2Object-affected harmful factors
If the shock absorbing element is positioned close to the housing, then it effectively absorbs shock energy, but it reduces the available internal volume for energy storage cells
Solution Approach 1:
The shock-absorbing device is implemented with local quality by positioning the shock-absorbing element only at specific critical locations within the housing where shock energy is most likely to be transmitted to the cells. This localized approach allows effective shock absorption while minimizing the overall volume occupied by the protective device, thereby preserving more internal volume for energy storage cells.
3Object-affected harmful factors
If the shock absorbing element is made deformable, then it can absorb shock energy through elastic or plastic deformation, but it reduces the structural rigidity of the housing
Solution Approach 1:
The housing structure is segmented into distinct functional zones: a rigid outer housing structure that maintains overall structural integrity and a separate deformable shock-absorbing element that handles impact forces. This segmentation allows the housing to maintain rigidity for structural support while the dedicated shock-absorbing component provides deformation-based energy absorption, resolving the contradiction between rigidity and shock absorption capacity.
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 shock absorbing device effectively reduces the risk of damage to the battery housing and energy storage cells by converting sudden impact into deformation energy, enhancing the robustness and protection of the battery during falls.
Implementation Method 1
The choice of material and the particular shaping of the shock absorbing element enable said element to be plastically or elastically deformable
Implementation Method 2
The choice of material and the particular shaping of the shock absorbing element enable said element to be plastically or elastically deformable
Data Source
AI summary
A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.