Accumulator Module One-Side Contacting Heat Dissipation
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Solution Overview
Problem
Existing energy storage devices face inefficiencies in heat dissipation and electrical current conduction, leading to reduced packing density and increased power loss due to conventional two-sided contacting of accumulator cells.
Innovation Solution
The accumulator module employs one-side electrical contacting of accumulator cells, allowing for optimized heat dissipation by positioning the uncontacted side for thermal coupling with a cooling surface, thereby enhancing heat transfer and reducing power loss through the use of specially designed cell connectors and carriers that facilitate secure, efficient electrical and thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If accumulator cells are contacted at both ends (conventional two-sided contacting), then electrical current conduction is achieved from both sides, but heat dissipation is compromised and packing density is reduced
Solution Approach 1:
The patent extracts the electrical contacting function from one end of the accumulator cell, dedicating that end solely to heat dissipation. By removing the contacting function from one side, the design achieves optimized thermal management while maintaining electrical functionality through one-side contacting, thereby reducing power loss and improving energy efficiency.
Solution Approach 2:
The patent applies local quality by assigning different functions to different parts of the accumulator cell: one end is dedicated to heat dissipation while the other end handles both contacting and heat dissipation. This functional differentiation optimizes both thermal management and electrical conduction, resolving the contradiction between energy loss and device complexity.
2Quantity of substance
If accumulator cells are contacted from both sides, then electrical connectivity is established, but the packing density of accumulator cells is reduced due to space requirements for conductor tracks
Solution Approach 1:
The patent removes the requirement for conductor tracks on both sides of the accumulator cell by implementing one-side contacting. This extraction of the contacting function to a single side eliminates the need for complex dual-sided conductor track provisions, thereby increasing packing density and simplifying manufacturing processes.
Solution Approach 2:
The patent segments the functional requirements of the accumulator cell, separating electrical contacting from thermal management functions. By dedicating one end solely to heat dissipation and the other to contacting, the design achieves higher packing density while maintaining ease of manufacture through simplified conductor track requirements.
3Temperature
If accumulator cells are contacted at both ends, then electrical current can flow through the cell, but heat dissipation efficiency is reduced due to blocked thermal pathways
Solution Approach 1:
The patent extracts the heat dissipation function from the contacted end, creating a dedicated thermal pathway at the uncontacted end. This separation allows heat to be efficiently dissipated without interference from electrical contacting components, thereby improving heat dissipation efficiency and reducing thermal energy retention in the cell.
Solution Approach 2:
The patent applies local quality by creating different thermal characteristics at different ends of the accumulator cell. The uncontacted end is optimized for heat dissipation with direct thermal coupling to cooling surfaces, while the contacted end maintains electrical connectivity. This functional differentiation resolves the contradiction between temperature management and energy loss.
4Loss of energy
If one-side contacting is implemented, then packing density increases and power loss reduces, but the electrical current conduction path becomes longer
Solution Approach 1:
The patent extracts the electrical contacting function to a single end, which initially appears to increase conductor path length. However, by optimizing the internal conductor routing and utilizing the cell's structural features, the actual conduction path is minimized. The benefit of reduced power loss through improved contact interfaces and reduced contact resistance outweighs the minor increase in path length.
Solution Approach 2:
The patent changes the contacting configuration from two-sided to one-sided, which alters the conductor path geometry. By optimizing conductor material selection, cross-sectional area, and routing efficiency, the increased path length is compensated, maintaining low power loss while achieving the benefits of one-side contacting for packing density and thermal management.
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 approach enables a higher packing density of accumulator cells with reduced power loss and improved heat dissipation, ensuring efficient thermal management and prolonged device performance.
Implementation Method 1
The or each carrier equipped with accumulator cells is placeable in the interior of the housing of the accumulator module in a form that thermally couples the free end faces of the accumulator cells to a cooling element, for example at a side surface of the housing that functions as a cooling element
Implementation Method 2
The housing then functions as a cooling element, for example. The housing or the side surface of the housing in question absorbs the thermal energy dissipated from the accumulator cells and releases it to the surroundings via convection, for example
Data Source
AI summary
The invention relates to an accumulator module (10) having optimized heat dissipation, namely, an accumulator module (10) having at least one carrier (18) that is placeable in the interior of a housing (12) of the accumulator module (10) and providable with a plurality of accumulator cells (14), wherein each accumulator cell (14) in the carrier (18) is electrically contacted solely from one side, and wherein the or each carrier (18) that is equipped with accumulator cells (14) is placeable in the interior of the housing (12) in a form that thermally couples the free end faces of the accumulator cells (14) to the housing (12).