Battery Module Guide Structure for Heat Conduction Contact
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Solution Overview
Problem
Existing power storage devices require a separately configured assembly member to press the battery module against a heat conduction sheet, increasing the number of components and complexity.
Innovation Solution
A power storage device design that utilizes a protrusion and guide portion on the battery module and battery case to guide the module into position, eliminating the need for a separate member by using the module's weight and inherent structure to press against a heat conduction member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a separately configured assembly member is used to press the battery module against the heat conduction sheet, then the battery module can be pressed against the heat conduction member, but the number of components increases and device complexity increases
Solution Approach 1:
The pressing function previously performed by a separate assembly member is merged into the battery case structure itself. The inclined portion of the guide portion, when combined with the protrusion on the battery module, creates an integrated pressing mechanism that eliminates the need for additional components while maintaining the necessary pressing force against the heat conduction member.
Solution Approach 2:
The battery case's guide portion with its inclined surface automatically performs the pressing function during the normal insertion process. As the battery module is inserted, the protrusion slides along the inclined portion, which self-generates the pressing force through the geometric conversion of linear insertion motion into downward pressure, without requiring external actuation or separate pressing mechanisms.
2Force
If a separately configured assembly member is used to press the battery module against the heat conduction sheet, then the battery module can be pressed against the heat conduction member, but manufacturing complexity increases
Solution Approach 1:
The pressing function is merged into the battery case structure, reducing the total number of parts that need to be manufactured and assembled. This integration simplifies the manufacturing process by eliminating separate pressing mechanisms while maintaining the necessary pressing force through the inclined guide portion design.
3Ease of manufacture
If the battery module is inserted without a guide mechanism, then the insertion process is simpler, but the battery module cannot be properly positioned and pressed against the heat conduction member
Solution Approach 1:
The guide portion acts as an intermediary mechanism between the insertion motion and the final positioning. The linear portion provides guidance during insertion, while the inclined portion mediates the conversion of linear motion into the downward pressing motion, ensuring both easy insertion and precise positioning against the heat conduction member.
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
Improves cooling performance by effectively pressing the battery module against a heat conduction member without additional components, facilitating easier manufacturing and enhancing thermal management.
Implementation Method 1
a heat conduction member (30) disposed between the battery module (20) and the battery case (32)
Data Source
AI summary
A power storage device includes a battery case serving as a housing, and a battery module configured to be insertable in a first direction from an opening of the battery case. In addition, the power storage device includes a heat conduction member disposed between a lower surface portion of the battery module and the battery case. Furthermore, the power storage device includes a protrusion provided on a front surface portion (a rear surface portion) of the battery module and a guide portion provided on an inner surface portion of the battery case. The guide portion is configured to include a linear portion that guides the protrusion along the first direction, and an inclined portion that is provided on one side in the first direction with respect to the linear portion and extends in an inclined manner toward a side of the lower surface portion.