NTC Thermistor Connector Structure for Internal Heat Detection
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Solution Overview
Problem
Conventional connectors fail to detect ambient temperature inside the connector in time, leading to potential irreversible consequences like fire, and NTC thermistors are difficult to mount and operate.
Innovation Solution
A connector design with a conductive terminal featuring an outward extending connecting portion that houses a recess for an NTC thermistor, secured by a heat-shrinkable sleeve or holding arms, allowing timely temperature detection and easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If NTC thermistor is provided on the insulating body, then temperature detection function is added, but the NTC thermistor cannot detect temperature inside the connector in time and the structure is limited
Solution Approach 1:
The NTC thermistor is moved from the insulating body surface to the conductive terminal's connecting portion, utilizing the three-dimensional space of the terminal structure. This spatial repositioning allows the thermistor to be embedded within the connector structure, enabling timely detection of internal temperature while maintaining mounting convenience through the integrated design.
Solution Approach 2:
The NTC thermistor is embedded into the recess of the conductive terminal's connecting portion, creating a nested structure where the thermistor is housed within the terminal itself. This nesting approach allows the thermistor to be protected and positioned optimally for temperature detection while simplifying the overall structure by eliminating separate mounting requirements.
2Adaptability or versatility
If NTC thermistor is provided on the insulating body, then temperature detection capability is improved, but the NTC thermistor is limited by product structure and difficult to mount
Solution Approach 1:
The recess for the NTC thermistor is pre-formed on the conductive terminal during terminal manufacturing, before the final assembly process. This preliminary preparation of the mounting location simplifies the subsequent assembly process, allowing the thermistor to be easily embedded into the pre-prepared recess without requiring complex additional manufacturing steps.
Solution Approach 2:
The conductive terminal is designed to serve multiple functions: electrical connection through the contact and welding portions, and temperature detection through the embedded NTC thermistor in the connecting portion. This multi-functionality approach integrates the temperature sensing capability into the existing terminal structure, eliminating the need for separate temperature detection components and simplifying manufacturing.
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 timely power cutoff to prevent fires and facilitates easy mounting of NTC thermistors, ensuring stable temperature detection within the connector.
Implementation Method 1
the connecting portion is fitted with a heat-shrinkable sleeve for securing the NTC thermistor
Implementation Method 2
A connector for connecting a negative temperature coefficient thermistor
Data Source
AI summary
A connector for connecting a NTC (negative temperature coefficient) thermistor is disclosed. The connector comprises an insulating body and a conductive terminal. The insulating body has a receiving hole therein. The conductive terminal has a connecting portion extending outward. The connecting portion extends out of the insulating body. The connecting portion has a recess for a NTC thermistor to be embedded and attached to the recess, such that the NTC thermistor can detect the temperature inside the connector in time. Thus, the power can be cut off in time to avoid irreversible consequences of fire, and the NTC thermistor can be mounted and operated more easily.