Battery Tolerance Compensation Assembly for Tight Housing Fits
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Solution Overview
Problem
Existing tolerance compensation systems in battery modules require additional installation space and limit maximum biasing forces due to the need for a separate base body, making them difficult to implement in cramped battery housings.
Innovation Solution
A tolerance compensation arrangement with a separate nut and tolerance compensation unit, where the compensation element moves in the screwing-in direction, allowing the unit to be preassembled on the battery module instead of the housing, thus eliminating the need for an additional base body and enabling larger contact surfaces and higher biasing forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate base body is used for the tolerance compensation unit, then the unit can be assembled, but it requires additional installation space and limits maximum biasing forces
Solution Approach 1:
The patent merges the base body and compensation element into a single integrated tolerance compensation unit. The compensation element is directly received in the base element without requiring a separate base body, combining multiple functions into one compact assembly that reduces installation space while maintaining assemblability.
Solution Approach 2:
The compensation element is nested within the base element, where the compensation element can be received in the base element and positioned relative to it. This nesting arrangement allows the compensation mechanism to be contained within the existing base structure, eliminating the need for additional base bodies and reducing overall installation space.
2Ease of operation
If a separate base body is used for the tolerance compensation unit, then the unit can be assembled, but it limits maximum biasing forces
Solution Approach 1:
By merging the base body and compensation element into one integrated unit, the load path for biasing forces is shortened and strengthened. The integrated structure eliminates weak interfaces between separate components, allowing the application of higher biasing forces without compromising structural integrity.
Solution Approach 2:
While integrating the base body and compensation element, the patent maintains functional segmentation through the adjustable compensation element that can move relative to the base element. This allows the unit to accommodate tolerance variations while withstanding higher biasing forces through the strengthened integrated connection.
3Manufacturing precision
If the compensation element moves against the screwing direction, then tolerance compensation is achieved, but the unit requires additional installation space
Solution Approach 1:
The patent inverts the conventional approach by having the compensation element move in the screwing-in direction rather than against it. As the screw is screwed in, the compensation element moves in the same direction as the screwing force, compensating for tolerances while using the existing screwing space efficiently without requiring additional installation space.
Solution Approach 2:
The compensation element is designed to be dynamically adjustable in position relative to the base element during the screwing process. This dynamic adjustment allows the element to move in the screwing-in direction, automatically compensating for tolerance variations between components while maintaining a compact integrated structure.
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 solution provides efficient tolerance compensation with increased biasing forces while minimizing installation space requirements, suitable for battery modules and other components, and can be preassembled for easy integration.
Implementation Method 1
rotating the specific screw with its screw neck guided through the first through-opening causes the compensation element to move relative to the base element with respect to the first direction, so that a distance between the base element and the support surface of the compensation element increases
Data Source
AI summary
A tolerance compensation arrangement for tolerance compensation between a first component and a second component to be fastened to the first component, the tolerance compensation arrangement having a tolerance compensation unit, a base element for fastening to the first component, a compensation element which can be accommodated in the base element, and a first through-opening extending in a first direction through the base element and through the compensation element accommodated in the base element. The tolerance compensation arrangement has a nut for fastening to the second component. The tolerance compensation unit is designed in such a way that by screwing a specific screw, the screw neck of which is passed through the first through-opening of the tolerance compensation unit, into the nut in a screwing-in direction.