Temperature Sensor Fixing Pipe Elastic Contraction
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Solution Overview
Problem
Crimping techniques for connecting electrical wires in temperature sensors can cause mechanical damage and are costly due to high man-hours required.
Innovation Solution
A temperature sensor design featuring a heat-sensitive body, electrical wires, and a fixing pipe made of a material with elastic properties that can expand and contract, allowing for secure attachment without special devices and minimizing damage to insulating coverings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If crimping is used to connect electrical wires, then reliable connection is achieved, but mechanical damage to wires and insulating covering occurs
Solution Approach 1:
The patent replaces the crimping mechanical connection system with a bonding system using conductive adhesive. Instead of using a crimping tool that applies mechanical force to deform connectors, the invention uses an adhesive layer that chemically bonds the first electrical wire to the second electrical wire, eliminating mechanical damage to the insulating covering while maintaining connection reliability
Solution Approach 2:
The patent changes the connection method from mechanical (crimping) to chemical (adhesive bonding). The conductive adhesive provides both electrical conductivity and mechanical bonding strength, altering the fundamental parameters of how the electrical wires are connected without causing damage to the insulating covering
2Reliability
If crimping is used to connect electrical wires, then secure fixation is achieved, but production cost increases due to high man-hours
Solution Approach 1:
The patent replaces the manual crimping process with an automated adhesive application process. The conductive adhesive can be applied using automated dispensing systems, eliminating the need for skilled operators to perform manual crimping operations, thereby reducing labor costs and increasing production efficiency while maintaining secure wire fixation
Solution Approach 2:
The conductive adhesive performs multiple functions simultaneously: it provides electrical conductivity, mechanical bonding, and insulation protection. This multi-functionality eliminates the need for separate crimping tools and operations, allowing the connection process to be simpler and more automated, thereby improving productivity
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 reduces mechanical damage to electrical wires and lowers production costs by enabling quick, efficient attachment of the fixing pipe without specialized tools, ensuring reliable wire fixation and reduced man-hours.
Implementation Method 1
a fixing pipe covering a periphery of the pair of electrical wires and the holding body and being a member made of a material having elastic property
Implementation Method 2
a fixing pipe covering a periphery of the pair of electrical wires and the holding body and being a member having a property of contracting when being heated
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 3A~3B
AI summary
An object is to provide a temperature sensor including a connection part that makes it possible to restrain a mechanical damage to an electrical wire, particularly, to an insulating covering, with little man-hours. The object is achieved by a temperature sensor 1 including: a sensor element 10 including a heat-sensitive body 11, a pair of electrical wires 17 electrically connected with the heat-sensitive body 11, and a protective body 19 covering the heat-sensitive body 11 and a part of the pair of electrical wires 17, 17; a holding body 30 for the sensor element 10; and a fixing pipe 50 covering a periphery of the pair of electrical wires 17, 17 and the holding body 30 and being capable of expanding and contracting.