Low-loss and high-quality axial flux motor core and manufacturing method thereof
By using epoxy resin coating and high-pressure pre-tightening, the problems of magnetic circuit congestion, increased iron loss and structural instability caused by laser welding have been solved, realizing the manufacturing of low-loss, high-quality axial flux motor cores with higher production efficiency and environmental friendliness.
CN122371605APending Publication Date: 2026-07-10HANGZHOU ZONHOW ELECTRIC TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU ZONHOW ELECTRIC TECH CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
Laser welding of traditional axial flux cores suffers from magnetic circuit congestion, increased iron loss, poor structural stability, complex and costly processes, low production efficiency, and environmental and health issues.
Method used
Silicon steel sheets are coated with epoxy resin and stacked using a CNC punching and rolling machine. Combined with high-pressure pre-tightening and curing in an oven, a seamless iron core structure is formed, ensuring that the silicon steel sheets are tightly bonded and uniformly clamped.
Benefits of technology
It significantly reduces iron loss, improves structural stability and heat dissipation performance, simplifies the process, reduces costs, increases production efficiency, and improves environmental protection and safety.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122371605A_ABST
Abstract
This invention relates to the field of motor technology and discloses a low-loss, high-quality axial flux motor core and its manufacturing method, which includes the following steps: preparing core steel sheets: preparing silicon steel sheets and coating them with epoxy resin; core punching and stacking: punching and stacking the epoxy resin-coated silicon steel sheets using a CNC punching and stacking machine to form a core (1); high-pressure pre-tightening: cleaning the core (1) and pre-fixing the punched core (1) using a curing fixture assembly (3); epoxy resin core curing: placing the core (1) and the curing fixture assembly into an oven, heating and curing the core (1) and the epoxy resin coated on it, and obtaining the finished core (1) after curing. The advantages of this application include extremely low iron loss, excellent magnetic circuit performance, excellent structural stability and heat dissipation performance, high production efficiency and low cost, good quality consistency, high reliability, environmental protection and safety.
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