Battery Temperature Sensor Housing for Closer Heat Conduction
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Solution Overview
Problem
Existing power storage devices have limitations in temperature measurement accuracy due to the separation of temperature detection sensors from the heat source, leading to poor heat conductivity and inaccurate temperature readings.
Innovation Solution
A temperature detection unit is designed with a board-shaped housing and a recess to accommodate a conductive board, featuring a sensor accommodating recess that extends obliquely to position the temperature detection sensor closer to the conductive board, enhancing heat conductivity and measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the temperature detection sensor is mounted at one end of the housing, then the device complexity is reduced, but the measurement precision deteriorates due to separation from the heat source
Solution Approach 1:
The sensor accommodating recess extends in the depth direction (third dimension) of the housing rather than only in the longitudinal direction. This allows the temperature detection sensor to be positioned closer to the conductive board and heat source while maintaining a simple mounting structure, thereby improving measurement precision without significantly increasing device complexity.
2Device complexity
If various members are stacked between the sensor and conductive board, then the device complexity is reduced, but the heat conductivity deteriorates
Solution Approach 1:
The invention extracts and removes the intermediate members (insulating members and reinforcing members) that were stacked between the temperature detection sensor and the conductive board. By eliminating these heat-blocking components, direct thermal contact is established, significantly improving heat conductivity and temperature measurement accuracy while maintaining structural integrity through the recess design.
3Measurement precision
If the sensor accommodating recess extends obliquely, then the measurement precision is improved by approaching the heat source, but the manufacturing precision requirements increase
Solution Approach 1:
The sensor accommodating recess is designed with an asymmetric oblique extension pattern, extending more prominently in the depth direction toward the conductive board. This asymmetric geometry optimizes the sensor's proximity to the heat source for improved measurement precision while remaining manufacturable through standard molding or machining processes.
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 improves temperature measurement performance by positioning the temperature detection sensor closer to the heat source, resulting in more accurate readings compared to traditional designs.
Implementation Method 1
the temperature detection sensor is separated from the heat source (in particular, the center portion of the power storage module (conductive board)), and various members are stacked, which causes a problem in the heat conductivity to the element of the temperature detection sensor
Data Source
AI summary
A temperature detection unit includes a board-shaped housing having a board side face provided with a recess configured to be fitted with a side edge of a conductive board disposed between a plurality of stacked power storage modules, and a temperature detection sensor mounted on the housing and configured to measure a temperature of the power storage modules. The housing is provided with a sensor accommodating recess accommodating the temperature detection sensor. A plate end face on one side facing an intersecting direction with a direction that the board side face of the housing faces is provided with an opening configured to allow a temperature wire connected to the temperature detection sensor to extend toward the outside. The sensor accommodating recess extends obliquely to approach the conductive board from one side toward the other side in the intersecting direction.