Thermistor Mounting Structure With Hinged Case for Easier FPC Assembly
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Solution Overview
Problem
The process of attaching a thermistor element mounting portion to a flexible printed circuit board is burdensome due to the small size of the mounting portion and the need to fix it to a case after the board is turned over, which complicates the attachment process.
Innovation Solution
A temperature measurement device with a case that includes a holding portion connected to a support portion via a hinge, allowing the holding portion to be folded back to easily attach the thermistor element mounting portion, and a flexible printed circuit board with wirings on both surfaces for voltage and temperature measurement, featuring a heat collection plate and elastic body for accurate temperature measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the thermistor element mounting portion is made small to reduce space usage, then the area occupied is reduced, but the ease of attachment deteriorates making the process burdensome
Solution Approach 1:
The holding portion is pre-configured with a hinge portion that allows it to be folded back during attachment. This preliminary design of the folding mechanism enables the small mounting portion to be easily attached without requiring complex manual positioning operations, thus resolving the contradiction between small size and ease of attachment
Solution Approach 2:
The holding portion is designed to be movable through the hinge mechanism, transitioning from a folded state during attachment to a fixed state during operation. This dynamic design allows the small mounting portion to be easily positioned and attached, improving ease of manufacture while maintaining compact size
2Stability of the object's composition
If the holding portion is fixed rigidly to the case body, then the structural stability is improved, but the ease of operation deteriorates making attachment complicated
Solution Approach 1:
The hinge portion enables the holding portion to move between folded and fixed positions, providing ease of operation during attachment while maintaining structural stability during use. This dynamic design resolves the contradiction between rigidity and operability
Solution Approach 2:
The case is divided into a case body and a holding portion connected by a hinge, separating the stable base structure from the movable attachment component. This segmentation allows the holding portion to be operated independently for easy attachment while the case body maintains structural integrity
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 enhances the workability of attaching the thermistor element mounting portion, improves temperature measurement accuracy, and reduces costs by using single-sided copper-clad laminate for the flexible printed circuit board.
Implementation Method 1
a thermistor element mounting portion having a thermistor element to be electrically connected to a wiring provided on the flexible printed circuit board
Data Source
AI summary
A temperature measurement device includes: a case fixed to a measurement target product; a flexible printed circuit board attached to the case; and a thermistor element mounting portion having a thermistor element to be electrically connected to a wiring provided on the flexible printed circuit board, the case has a holding portion for holding the thermistor element mounting portion and a support portion for supporting the holding portion, the holding portion is connected through a hinge portion to a case body provided with the support portion, and the holding portion is supported by the support portion in such a manner that the holding portion is folded back to bend the hinge portion.