Fan Motor Mounting Adaptation for Electric Motor Vibration
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Solution Overview
Problem
Existing air-cooled electric motors face challenges in mounting fan motors, with either increased rigidity but complex assembly and replacement, or reduced rigidity leading to resonance and potential breakage, making it difficult to adjust to varying usage conditions and vibration states of load devices without significant cost and work overhead.
Innovation Solution
The electric motor design incorporates engagement parts on both the motor main body and casing, allowing the fan motor to be easily switched between mounting positions during operation, with common structures on the fan motor's end faces and matching parts on the motor and casing for secure fastening, simplifying assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the fan motor is mounted to the motor main body, then the mounting part has improved rigidity and vibration is mitigated, but the assembly work becomes complicated and replacement takes longer
Solution Approach 1:
The invention divides the mounting system into separate engagement parts on the motor main body and corresponding engagement parts on the fan motor. This segmentation allows the fan motor to be independently mounted or removed without affecting the motor main body, simplifying assembly and replacement while maintaining secure attachment through dedicated engagement features.
Solution Approach 2:
The engagement parts are pre-configured on both the motor main body and fan motor during manufacturing. This preliminary preparation of mounting interfaces eliminates the need for complex fastening operations during assembly, as the components are designed to engage directly with pre-formed engagement features.
2Device complexity
If the fan motor is mounted to the casing, then assembly and replacement work is greatly reduced, but the mounting part has lower rigidity causing resonance and potential breakage
Solution Approach 1:
The mounting system is segmented into dedicated engagement parts on the motor main body and corresponding engagement parts on the fan motor, separate from the casing structure. This allows the fan motor to be mounted to the rigid motor main body rather than the less rigid casing, preventing resonance while maintaining simple assembly through the modular engagement interface.
Solution Approach 2:
The motor main body serves as an intermediary mounting structure between the fan motor and the overall motor assembly. By providing engagement parts on the motor main body, it acts as a rigid intermediate platform that supports the fan motor securely, avoiding the resonance issues associated with mounting directly to the casing while keeping the system modular.
3Adaptability or versatility
If the fan motor mounting position is changed during operation, then adaptability to usage conditions is improved, but the cost and work required increase due to full motor replacement
Solution Approach 1:
The fan motor is segmented as a separate, independently replaceable component with dedicated engagement parts that interface with the motor main body. This segmentation enables the fan motor to be easily removed and repositioned during operation without replacing the entire motor, reducing both cost and work while maintaining adaptability to different usage conditions.
Solution Approach 2:
The mounting system is designed to be dynamic and reconfigurable, with engagement parts that allow the fan motor to be easily relocated between different positions on the motor main body during operation. This dynamic capability enables adaptation to varying usage conditions without requiring full motor replacement, as the modular engagement interface facilitates quick repositioning.
Data Source
AI summary
An electric motor comprising: an motor main body, a fan motor for cooling the motor main body, and a casing which is attached to the motor main body to hold the fan motor, wherein the fan motor has engagement parts, and both of the motor main body and the casing are provided with engagement parts which can engage with the engagement parts on the fan motor to fasten the fan motor.