Multi-Coil Stepping Motor Catch Parts to Prevent Coil Detachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Stepping motors with multiple coils are prone to coil detachment from the stator, which can lead to mechanical instability and operational issues.
Innovation Solution
A stepping motor design featuring a stator with projection parts and yokes locked by supporters, with catch parts formed on the yokes to prevent coil detachment, ensuring stable magnetic coupling and compact mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple coils are installed on the stator, then the motor functionality is improved, but the risk of coil detachment increases
Solution Approach 1:
The patent implements projection parts on the stator and corresponding recesses on the coil supports before coil installation. These preliminary structural features pre-establish the mechanical interlocking mechanism, ensuring that when coils are mounted, they are automatically positioned and secured against detachment forces, thus preventing reliability issues while maintaining multi-coil functionality
Solution Approach 2:
The patent introduces coil supports as intermediary components between the stator and coils. These supports feature recesses that receive the projection parts from the stator, creating a mechanical coupling mechanism. This intermediary structure distributes attachment forces and secures multiple coils simultaneously, resolving the contradiction between having multiple coils and preventing detachment
2Adaptability or versatility
If multiple coils are installed on the stator, then the motor functionality is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple coil supports into a single integrated component structure that interfaces with the stator's projection parts. By merging the support functions into unified structural elements with standardized recesses, the design reduces the number of discrete parts and simplifies assembly, thus maintaining multi-coil functionality while reducing overall device complexity
Solution Approach 2:
The projection parts on the stator and recesses on the coil supports are designed as universal coupling features that can accommodate multiple different coil configurations. This multi-functional interface allows the same basic structure to support various coil arrangements and motor designs, reducing complexity by avoiding custom-designed attachment mechanisms for each specific coil configuration
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
Prevents coil detachment from the stator, enabling stable operation and compact integration of multiple coils, facilitating efficient assembly and increased package density in devices.
Implementation Method 1
multiple coils magnetically coupled to the stator
Implementation Method 2
a stepping motor having a rotor, a stator, and multiple coils
Data Source
Figure 1A~1C
Figure 2~3
Figure 4A~4E
AI summary
A stepping motor (1) includes: a rotor (3); a stator (1); two yokes (5); and coils (C1 to C3). The stator includes a straight part (12), first and second projection parts (13, 14), and a rotor receiver (20) formed in the second projection part. The first and second projection parts are formed at both ends of the straight part in a longitudinal direction (L) and project in directions crossing the longitudinal direction. The yokes are disposed along the longitudinal direction at both ends of the straight part. One end of each yoke is locked to the first projection part via a first supporter (150), and another end thereof is locked to the second projection part via a second supporter (180). A catch part (65) is formed at one end of each yoke to go around the first supporter from a yoke side toward a straight part side.