Stator Tooth Sensor Mounting for Accurate Motor Coil Temperature
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for installing temperature sensors near motor coils in electric work machines are unstable due to variations in coil winding uniformity across different motors.
Innovation Solution
The temperature sensor is installed on the tooth of the motor's stator, which is wound with the coil, allowing for proper and stable temperature detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is directly fixed on the coil with an adhesive, then the temperature sensor can be installed near the coil for proper temperature detection, but the fixation becomes unstable due to variations in coil winding uniformity across different motors
Solution Approach 1:
The patent introduces the tooth as an intermediary component between the temperature sensor and the coil. The tooth provides a stable, standardized mounting surface for the temperature sensor, eliminating the need to directly attach the sensor to the coil. This mediator resolves the contradiction by providing both proximity to the coil for accurate temperature detection and a uniform surface for reliable sensor fixation across all motors.
2Reliability
If the temperature sensor is installed on the tooth, then the sensor fixation stability is improved, but the installation complexity increases
Solution Approach 1:
The tooth serves multiple functions: it is both a functional component of the motor (for coil winding and magnetic field generation) and a mounting structure for the temperature sensor. By making the tooth universal for both purposes, the patent avoids adding separate mounting structures, thereby improving sensor fixation stability without significantly increasing installation 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
This configuration enables efficient and accurate temperature detection of the motor, ensuring reliable operation and preventing overheating.
Implementation Method 1
The coil generates a magnetic force in response to receiving an electric power
Implementation Method 2
The temperature sensor is installed in/on the tooth
Data Source
AI summary
An electric work machine in one aspect of the present disclosure includes a motor, a driver, and a temperature sensor. The motor includes a stator, and a rotor. The stator includes a cylindrical body, a tooth, and a coil. The cylindrical body includes a first inner circumferential surface. The tooth is disposed to stand on the first inner circumferential surface. The coil is wound around the tooth. The coil generates a magnetic force in response to receiving an electric power. The temperature sensor is installed in/on the tooth.