Wire Harness Temperature Sensor With Protected Exposed Element
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Solution Overview
Problem
Existing temperature sensors with simplified fixing functions lack adequate protection for the temperature-sensitive element during mounting and handling, necessitating a configuration that ensures proper protection until the element is securely attached to the clamp.
Innovation Solution
A temperature sensor design featuring a main body part with a holding part and clamp part that includes protection wall parts to shield the temperature-sensitive element, along with a connector for electrical connection, allowing the element to be exposed through window parts for accurate temperature detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the temperature sensor is configured with separate molded parts for versatility and ease of mounting, then the mountability and maintainability are improved, but the temperature-sensitive element becomes vulnerable to external forces during handling and transportation
Solution Approach 1:
The patent applies preliminary action by pre-assembling the temperature-sensitive element onto the main body part before the final mounting operation. The element is securely positioned on the main body part with proper alignment features, so that when the clamp part is attached, the element is already protected and ready for installation without being vulnerable to external forces during handling.
Solution Approach 2:
The patent implements nesting by placing the temperature-sensitive element within the main body part structure, which is then nested within the clamp part when assembled. The element is housed in a protected cavity or mounting area on the main body part, creating a nested configuration that shields the sensitive element while maintaining the modular, separately-molded structure for versatility.
2Measurement precision
If the temperature-sensitive element is exposed for temperature detection, then the measurement function is improved, but the element becomes susceptible to damage from external forces
Solution Approach 1:
The patent applies local quality by providing differential protection to the temperature-sensitive element - the element is fully protected within the main body part structure where it is secure and shielded, while only the specific sensing portion needed for temperature detection is exposed through the clamp part. This localized exposure approach allows measurement functionality while minimizing vulnerability to external forces.
Solution Approach 2:
The patent uses the main body part as an intermediary structure between the temperature-sensitive element and the external environment. The main body part serves as a protective mediator that houses and secures the element, providing mechanical support and protection, while allowing the element's sensing function to interface with the environment through controlled exposure points in the clamp part.
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 effectively protects the temperature-sensitive element from external forces during transportation and assembly, ensuring reliable operation and efficient temperature measurement.
Implementation Method 1
a temperature-sensitive element that detects a temperature of a measurement target
Data Source
AI summary
A temperature sensor applied to a wire harness includes a temperature-sensitive element, a main body part that holds the temperature-sensitive element, a clamp part, and a connector. The main body part includes a holding part that holds the temperature-sensitive element on the tip side in an insertion direction and is positioned inside the clamp part by being inserted into the clamp part along that direction. The clamp part includes a pair of window parts that allow the temperature-sensitive element to be exposed to outside of the clamp part. Furthermore, the holding part includes a pair of protection wall parts positioned by sandwiching a window part in a state of being inserted into the clamp part. An end part of the wall part on a tip side in the insertion direction is positioned by protruding more than an end part of the temperature-sensitive element on the tip side does.