Tulip Contactor Temperature Sensing in Vacuum Circuit Breakers
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Solution Overview
Problem
Existing vacuum circuit breakers face challenges in accurately measuring and monitoring the temperature of specific points, particularly the tulip contactor, leading to potential damage and increased costs due to inefficient temperature detection methods.
Innovation Solution
A vacuum circuit breaker with a temperature detecting sensor directly attached to the tulip contactor, featuring a sensor body, fixing band, and temperature measurement part, allowing for precise temperature measurement and monitoring of specific points without electrical connection to the conductive pole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature detecting device is attached to outside of the tulip contactor, then the device structure is simple and installation is easy, but the temperature measurement accuracy is reduced
Solution Approach 1:
The temperature sensor is nested within a recess provided in the tulip contactor itself. The sensor insertion hole is formed inside the conductive pole, and the temperature sensor is inserted into this recess, allowing the sensor to be positioned in close proximity to the measurement point while being protected by the contactor structure.
2Loss of time
If a temperature sensor is positioned outside the circuit breaker, then the sensor is protected from internal damage, but the temperature detection cost and time increase
Solution Approach 1:
The recess for accommodating the temperature sensor is pre-formed in the tulip contactor during manufacturing. This preliminary preparation allows the temperature sensor to be easily installed and positioned at the optimal measurement location, reducing both installation time and detection time while ensuring the sensor is protected within the contactor structure.
3Measurement precision
If the temperature detecting sensor is directly attached to the tulip contactor, then the measurement accuracy is improved, but the sensor may be damaged by the tulip contactor's movement
Solution Approach 1:
The recess in the tulip contactor is designed to accommodate the temperature sensor with appropriate clearance and positioning features. This recess structure cushions the sensor from direct mechanical stress and movement forces, protecting the sensor while maintaining close thermal contact for accurate measurement.
4Adaptability or versatility
If multiple temperature detecting sensors are installed to monitor multiple points, then comprehensive temperature monitoring is achieved, but the device complexity and cost increase
Solution Approach 1:
The tulip contactor is designed with a standardized recess structure that can accommodate temperature sensors at multiple locations. This universal design allows the same contactor structure to support multiple sensing points, enabling comprehensive temperature monitoring without proportionally increasing device complexity.
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
Enhances temperature measurement accuracy, reduces costs and time for detection, and prevents damage to the sensor due to the tulip contactor's movement, while enabling real-time monitoring of multiple points simultaneously.
Implementation Method 1
a temperature measurement part which is in contact with a specific point of the tulip contactor and configured to measure temperature of the specific point
Data Source
AI summary
The present disclosure provides a vacuum circuit breaker which can measure and monitor temperature of a tulip contactor, the vacuum circuit breaker comprising: a conductive pole including a tulip contactor; and a temperature detecting sensor disposed adjacent to the tulip contactor, wherein the temperature detecting sensor comprises: a sensor body; a fixing band coupled to the sensor body and disposed to surround a part of the conductive pole; and a temperature measurement part which comes into contact with a specific point of the tulip contactor to measure the temperature of the specific point, wherein a sensor insertion hole for accommodating a part of the temperature measurement part is recessedly formed at one surface of the tulip contactor facing the sensor body.