Motor Stator Segmented Yoke and Teeth Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motor designs with a stator comprising a yoke section and teeth section face challenges in maximizing space efficiency and assembly complexity due to the need for separate wire-winding coils and the difficulty in connecting independent yoke and teeth segments effectively.
Innovation Solution
A motor design where the yoke and teeth sections are formed as independent configuration members, with neighboring teeth unified through connecting parts, and the yoke sections are connected in a loose fitting manner, allowing for increased space factor and simplified assembly by eliminating the need for separate wire-winding nozzles and reducing the number of parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the yoke section and teeth section are formed as independent configuration members, then the assembly process is simplified and space factor is increased, but the alignment precision and structural integrity may deteriorate
Solution Approach 1:
The stator is divided into independent yoke section and teeth section that can be manufactured separately and then assembled. This segmentation allows each component to be optimized independently for manufacturing ease while maintaining overall structural integrity through precise connection interfaces.
Solution Approach 2:
Connection parts are introduced as intermediary elements between the yoke section and teeth section. These connection parts serve as mediators that ensure precise alignment and secure structural bonding while allowing the main components to remain independent and easy to manufacture.
2Manufacturing precision
If separate wire-winding nozzles are used for each tooth, then coil winding is precise, but the device complexity and manufacturing cost increase
Solution Approach 1:
Multiple wire-winding nozzles are merged into a single integrated nozzle structure that can service multiple teeth simultaneously. This merging reduces the total number of nozzles required, simplifying the wire-winding device while maintaining precise coil winding through the combined nozzle's multi-position capability.
3Strength
If insertion grooves are formed in the entire area of the yoke section, then the yoke and teeth connect securely, but the manufacturing complexity and material loss increase
Solution Approach 1:
Instead of forming insertion grooves throughout the entire yoke section, the grooves are localized only to the specific areas where teeth need to be inserted. This local quality approach maintains secure connection strength at critical interfaces while reducing overall manufacturing complexity and material removal.
Solution Approach 2:
The connection structure is segmented into discrete insertion grooves positioned only where needed, rather than continuous grooves across the entire yoke. This segmentation reduces manufacturing complexity by limiting the grooving operation to specific localized regions while maintaining adequate connection strength.
Data Source
AI summary
Included are a rotor, and a stator having a yoke section and a teeth section including multiple teeth. The teeth section and the yoke section are made of mutually independent configuration members, and connected to each other. At least one of the teeth section and the yoke section is formed by connecting each neighboring two of its multiple segments arranged one after another in a direction in which the rotor rotates. At least some neighboring teeth out of the multiple teeth are unified.