Deformable Temperature Sensor Body for Irregular Coil Surfaces
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Solution Overview
Problem
Existing temperature sensors struggle to accurately detect temperature on coil ends with varying surface properties, such as inclination or twisting, due to insufficient contact area and inability to deform and follow the surface shape.
Innovation Solution
A temperature sensor design with a sensor body supported at both ends, allowing deformation to follow the detection object surface, featuring a resin cover layer for flexibility and a mountain-fold detecting surface to ensure consistent contact, even on irregular surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detecting surface of the temperature sensor is flat, then the structure is simple and easy to manufacture, but the contact area with inclined or twisted detection object surfaces is insufficient, resulting in inaccurate temperature detection
Solution Approach 1:
The sensor body is designed to be deformable rather than rigid, allowing it to dynamically adapt its shape to match the detection object surface. The sensor body can elastically deform to follow inclined or twisted surfaces, ensuring adequate contact area for accurate temperature detection while maintaining a simple flat detecting surface structure.
Solution Approach 2:
The physical state of the sensor body is changed from rigid to flexible/deformable, enabling it to change its shape parameter in response to the detection object surface geometry. This parameter change allows the sensor to maintain good contact with various surface types without requiring complex pre-shaped detecting surfaces.
2Stability of the object's composition
If the sensor body is made rigid to maintain structural stability, then the manufacturing precision is high, but the sensor cannot deform to follow the detection object surface, reducing contact area and detection accuracy
Solution Approach 1:
The sensor body transitions from a static rigid structure to a dynamic deformable structure that can adapt its shape while maintaining structural integrity. The deformable sensor body follows the detection object surface contours, ensuring stable contact and accurate temperature detection across various surface geometries.
Solution Approach 2:
The sensor body is designed with flexible characteristics similar to thin films that can conform to underlying surfaces. This flexibility enables the sensor to deform and follow the detection object surface while maintaining structural stability through its material properties and support structure.
3Device complexity
If the sensor body is supported only at one end, then the structure is simple, but the sensor body cannot adequately deform to follow the detection object surface properties, reducing contact area
Solution Approach 1:
The support structure is segmented into multiple support points along the sensor body rather than a single support point. This segmentation allows different portions of the sensor body to deform independently to match the detection object surface, maximizing contact area while keeping each support element relatively simple.
Solution Approach 2:
The support configuration is changed from single-point support to multi-point support, altering the mechanical boundary conditions of the sensor body. This parameter change enables greater deformability and better adaptation to the detection object surface while maintaining structural simplicity.
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
Enables stable and accurate temperature detection irrespective of the detection object surface properties, improving contact area and sensitivity by deforming to match the surface shape.
Implementation Method 1
the sensor body is supported by the sensor holder at both the front end side and the back end side... when the temperature sensor is pressed against the detection object surface, the temperature sensor is deformed to follow the properties of the detection object surface
Implementation Method 2
a thermosensitive device 11 on the front end side... the thermistor is brought into contact with the outside surface of the coil end to detect the temperature of the coil end
Data Source
AI summary
A temperature sensor that makes it possible to stably and accurately detect temperature irrespective of properties of a detection object surface, which includes a sensor holder extending from a front end side F toward a back end side B; and a sensor body that is held by the sensor holder to locate a thermosensitive device on the front end side F and from which lead wires that are electrically connected to the thermosensitive device are drawn toward the back end side B. The sensor body is supported by the sensor holder at both the front end side F and the back end side B.