Motor Stator Mounting via Rotational Locking Blocks
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Solution Overview
Problem
The existing methods for mounting a stator in an electrical fan, which involve using adhesive, complicate assembly, increase costs, and pose environmental concerns due to non-degradable materials.
Innovation Solution
A mounting structure featuring a tube with axial and radial positioning blocks that securely engage with the stator, eliminating the need for adhesive by rotating the stator into locked positions via axial and radial engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is used to fix the stator to the central tube, then the stator can be positioned, but the assembly process becomes complicated and efficiency decreases
Solution Approach 1:
The patent replaces the chemical bonding method (adhesive) with a mechanical locking system consisting of positioning blocks and positioning grooves. The positioning blocks on the central tube engage with corresponding grooves on the stator through rotational movement, providing reliable positioning without adhesive. This mechanical substitution eliminates the need for drying time and simplifies the assembly process, directly resolving the contradiction between positioning reliability and assembly efficiency.
2Reliability
If adhesive is used to fix the stator, then positioning is achieved, but assembly cost increases
Solution Approach 1:
The patent eliminates adhesive materials and replaces them with a mechanical positioning system using positioning blocks and grooves. This substitution removes the cost of adhesive materials and the labor costs associated with adhesive application and drying time. The mechanical system can be integrated into the existing tube and stator structures, making it cost-effective while maintaining positioning reliability.
3Reliability
If adhesive is used for stator positioning, then the stator is secured, but environmental pollution occurs due to nondegradable materials
Solution Approach 1:
The patent replaces adhesive (a chemical substance that is often non-degradable and environmentally harmful) with a purely mechanical positioning system. The positioning blocks and grooves create a physical interlocking mechanism that secures the stator without requiring any chemical adhesives. This eliminates the environmental pollution issue associated with adhesive disposal and degradation, while maintaining secure stator positioning through the mechanical engagement of the positioning features.
Data Source
AI summary
A mounting structure for a motor includes a tube and a stator. The tube includes at least an axial positioning block and at least a radial mounting block. The stator defines an axis hole for receiving a portion of the tube therein, and at least a positioning groove in an inner surface thereof. One of the stator and the tube is rotated from an unlock position, where the at least an axial positioning block is located just above the at least a positioning groove, to a locked position, where a bottom surface of the at least an axial positioning block abuts a top surface of the stator and the at least a radial mounting block engages with the inner surface of the stator.