Stator Structure Single-Side Mounting for Coaxiality
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Solution Overview
Problem
Existing motor assembly processes face challenges in achieving high coaxiality between fan blades, rotor, stator, and air duct housing, leading to vibration noise and reduced motor service life due to low processing accuracy of the air duct's inner wall.
Innovation Solution
A stator structure with a fixing part coaxially disposed in the air duct housing, connecting components between the housing and fixing part, and a mounting end cover, allowing for single-processing of surfaces A, B, and C to ensure coaxiality, eliminating the need for secondary processing and reducing processing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the end cover is disposed near the air inlet of the air duct, then the assembly structure is compact, but secondary processing is required which results in the coaxiality cannot be guaranteed
Solution Approach 1:
The mounting inlet of the fixing part is positioned on the same side as the fan blade assembly before assembly, allowing surfaces A, B, and C to be processed in a single operation. This preliminary positioning arrangement eliminates the need for secondary processing after assembly, thereby ensuring coaxiality while maintaining compact structure.
2Productivity
If fan blades, stator and rotor are assembled at the same time on both sides of the air duct, then assembly efficiency is improved, but the coaxiality among the fan blades, rotor, stator and air duct housing is difficult to be achieved
Solution Approach 1:
The fixing part serves as an intermediary component that provides a standardized mounting interface between the motor assembly and the air duct housing. By positioning the mounting inlet on the same side as the fan blade assembly, it enables coordinated assembly of all components while maintaining coaxiality through unified processing of surfaces A, B, and C.
Data Source
AI summary
A stator structure and a motor are provided, including an air duct housing. A fixing part is coaxially disposed in the air duct housing and configured to install a motor assembly, connecting components disposed between the air duct housing and the fixing part fix a relative position between the air duct housing and the fixing part, a position of a mounting inlet of the fixing part is on the same side as a position of a fan blade assembly of the air duct housing, an end of the fixing part far away from the mounting inlet is provided with a mounting end cover. By setting the mounting inlet of the fixing part and the fan blade assembly of the air duct housing on the same side, processing of surfaces A, B and C can be completed by one processing without secondary processing, therefore ensuring coaxiality and accuracy of the processing.