Multi-Line Temperature Sensor With Concave Contact Surfaces
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Solution Overview
Problem
Existing temperature sensors for power distribution components face variations in sensitivity and thermal response due to attachment position, sealing material application, and assembly shifts, leading to inconsistent measurements.
Innovation Solution
A temperature sensor design featuring a protection member with concave abutting surfaces matching the distribution lines, embedding the temperature detection unit between these surfaces, and strategically positioning the lead wires to minimize stress and vibration effects, ensuring consistent contact and efficient heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is directly attached to the conductor using sealing material, then the temperature can be measured, but the sensitivity and thermal response vary depending on attaching position and sealing material application
Solution Approach 1:
The protection member is divided into multiple functional surfaces: a first abutting surface with a first concave shape for contacting the first distribution line, a second abutting surface with a second concave shape for contacting the second distribution line, and a third abutting surface for contacting the conductor. This segmentation ensures each surface performs its specific function, eliminating variability from improper attachment.
Solution Approach 2:
Each abutting surface is designed with a specific concave shape corresponding to the outer shape of the distribution line or conductor it contacts. This localized geometric matching ensures optimal thermal contact at each specific location, guaranteeing consistent sensitivity and thermal response regardless of assembly variations.
2Measurement precision
If the coil element and thermal body are assembled to the housing, then the temperature detection function is achieved, but position shift during assembly causes variations in sensitivity and thermal response
Solution Approach 1:
The protection member is pre-formed with specific concave shapes (first, second, and third abutting surfaces) that correspond to the outer shapes of the distribution lines and conductor. This preliminary geometric configuration ensures that when assembly occurs, the components naturally align to the correct positions without requiring high-precision assembly operations, thereby eliminating sensitivity and thermal response variations caused by position shifts.
3Adaptability or versatility
If multiple distribution lines are measured simultaneously, then comprehensive temperature monitoring is achieved, but the complexity of ensuring consistent contact increases
Solution Approach 1:
The protection member serves multiple functions simultaneously: it protects the temperature detection unit, provides thermal contact with multiple distribution lines (first and second concave shapes), and maintains contact with the conductor (third abutting surface). This multi-functional design enables comprehensive temperature monitoring of multiple lines while simplifying the overall structure and ensuring consistent contact through the pre-formed geometric shapes.
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 design achieves stable sensitivity and thermal response variations, enabling accurate simultaneous temperature measurement of multiple distribution lines with improved reliability and ease of assembly.
Implementation Method 1
a first abutting surface that has a first concave shape corresponding to an outer shape of a first distribution line and is in contact with the first distribution line and a second abutting surface that has a second concave shape corresponding to an outer shape of a second distribution line and is in contact with the second distribution line
Data Source
AI summary
A temperature sensor detects temperatures of at least two distribution lines and includes a temperature detection unit and a protection member that covers the temperature detection unit. The protection member is provided with a first abutting surface that has a concave shape corresponding to an outer shape of a first distribution line and is in contact with the first distribution line and a second abutting surface that has a concave shape corresponding to an outer shape of a second distribution line and is in contact with the second distribution line.