Stator Insulation Coating With Integrated Temperature Sensing
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Solution Overview
Problem
Existing stator arrangements for electrical machines face challenges in precise temperature determination while being manufactured in a simple and economic manner.
Innovation Solution
A stator arrangement featuring a stator body with a stator core and an electrically insulating coating layer, integrated with temperature-determination devices comprising measurement conductor paths with temperature-dependent resistance, arranged on or in the coating layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate temperature sensors and evaluation units are used for temperature determination, then measurement precision is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent combines the temperature determination function directly into the coating layer by integrating measurement conductor paths with temperature-dependent resistance. This merges the previously separate temperature sensor and evaluation unit into a single integrated structure within the coating layer, reducing component quantity while maintaining measurement capability
Solution Approach 2:
The coating layer serves multiple functions: it provides electrical insulation for the stator core, structural support, and now also temperature determination through the integrated measurement conductor paths. This multi-functionality eliminates the need for separate dedicated temperature sensing components
2Measurement precision
If multiple separate components (temperature sensor, voltage sensor, current sensor, evaluation unit) are used for temperature determination, then measurement precision is improved, but manufacturing costs increase
Solution Approach 1:
The patent merges multiple sensing functions into a single integrated temperature determination device within the coating layer. The measurement conductor paths are directly formed in the coating layer material, eliminating the need for separate sensors and evaluation units, thereby reducing assembly steps and manufacturing costs
Solution Approach 2:
The patent utilizes the temperature-dependent resistance parameter of the coating layer material itself for temperature determination. By changing from external sensing to utilizing the inherent electrical parameter of the coating material, the system achieves precise temperature measurement while simplifying manufacturing
3Measurement precision
If traditional separate component assembly is used for temperature sensing, then measurement precision is improved, but production time increases
Solution Approach 1:
The measurement conductor paths are formed directly within the coating layer during the coating application process itself, before final assembly. This preliminary integration of the temperature sensing function into the coating manufacturing process eliminates subsequent assembly steps and accelerates production
Solution Approach 2:
The patent combines the coating layer application and temperature sensor integration into a single manufacturing step. The measurement conductor paths are formed as part of the coating layer structure, eliminating the need for separate sensor installation and connection steps, thereby increasing production speed
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 solution enables precise temperature determination with minimal components, achieving a compact and highly integrated stator arrangement that can be manufactured economically using MID methods, thereby reducing measurement errors and production costs.
Implementation Method 1
a temperature-determination device that comprises at least one measurement conductor path having a temperature-dependent resistance
Data Source
AI summary
The present disclosure refers to a stator arrangement as well as a method for the manufacturing thereof. The stator arrangement has a stator body having a stator core that is entirely or partly coated by an electrically insulating coating layer. A temperature-sensitive measurement conductor path is arranged in or on the coating layer and is integrally realized together with the coating layer. For this purpose, an MID manufacturing method can be used, for example. The at least one temperature-sensitive measurement conductor path has a temperature-dependent resistance. It is preferably arranged at a measurement position between a tooth of stator body and a stator winding wound onto the tooth.