Reactor Coil Temperature Sensor with Insulated Cover
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Solution Overview
Problem
Existing reactors face challenges in efficiently reducing coil temperature and accurately measuring coil temperature due to potential liquid coolant exposure affecting sensor functionality.
Innovation Solution
A reactor design with a coil having an exposed region for direct coolant contact, a magnetic core forming a closed circuit, and a sensor member with a rod-shaped sensor body and wire, protected by a sensor cover portion to prevent coolant exposure, allowing effective cooling and accurate temperature measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor member is arranged in the exposed region of the coil to measure temperature, then temperature measurement accessibility is improved, but the sensor may be contacted by liquid coolant causing measurement inaccuracy
Solution Approach 1:
The sensor member is segmented into distinct functional portions: a sensor body portion for temperature detection and a wire portion for signal transmission. This segmentation allows the sensor body to be positioned in the exposed region for accurate measurement while the wire extends to the sealed region for reliable connection, resolving the contradiction between measurement accessibility and reliability.
Solution Approach 2:
The patent introduces an insulating coating as an intermediary layer on the sensor body portion. This coating acts as a mediator that allows thermal contact with the coil for accurate temperature measurement while preventing direct contact with the liquid coolant, thus protecting the sensor functionality while maintaining measurement precision.
2Temperature
If the coil is exposed to allow direct coolant contact, then heat dissipation performance is improved, but the sensor member may be contacted by coolant affecting measurement accuracy
Solution Approach 1:
The sensor member is designed with local quality differentiation: the sensor body portion has an insulating coating for coolant resistance while the wire portion lacks coating for electrical conductivity. This local quality approach allows the sensor to function accurately in the exposed region where coolant contacts the coil for cooling while protecting the sensitive measurement portion from coolant damage.
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 efficiently reduces coil temperature through direct coolant contact while ensuring the sensor can accurately measure the coil temperature without being affected by the coolant, enhancing both cooling and measurement accuracy.
Implementation Method 1
it is proposed to perform forced cooling using a liquid coolant
Implementation Method 2
the liquid coolant comes into direct contact with the coil, heat dissipation performance will be enhanced
Implementation Method 3
a sensor member configured to measure a temperature of the coil
Data Source
AI summary
Provided is a reactor that includes: a coil provided with a wound portion that is obtained by winding a winding wire, and has an exposed region with which a liquid coolant comes into direct contact; a magnetic core that is arranged inside and outside the wound portion, and forms a closed magnetic circuit; a sensor member configured to measure the temperature of the coil, the sensor member including a rod-shaped sensor body portion attached to the exposed region of the wound portion, and a wire coupled to the sensor body portion; and a sensor cover portion that covers surfaces of the outer periphery of the sensor body portion, except for a mounting surface for mounting to the wound portion and at least part of a coupling surface to which the wire is coupled.