Elektromotor und elektrisches haushaltsgerät
AT1916997TUndetermined Publication Date: 2026-05-15GUANGDONG WELLING ELECTRIC MACHINE MFG
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Patent Information
- Application Number
- AT2019946787T
- Authority / Receiving Office
- AT · AT
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-09-26
- Filing Date
- 2019-12-27
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2039-12-27
AI Technical Summary
Technical Problem
Brushless DC motors used in household appliances suffer from low power density and high vibration noise, necessitating a balance between vibration noise, efficiency, and cost.
Method used
The motor design incorporates a rotor iron core with sector-shaped portions and a stator iron core, optimizing the pole slot factor and P-S coefficient to reduce vibration and noise while enhancing power density and efficiency, with specific ranges for the number of slots per pole and phase, and optimizing air gap and magnetic field distribution to minimize harmonic components.
Benefits of technology
The design effectively reduces vibration and noise, increases power density and efficiency, and lowers the motor's cost, achieving improved performance and cost-effectiveness.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided are an electric motor and a household electrical appliance, said motor (100) comprising: a rotor core (10), comprising an axle collar part (12) and a plurality of fan-shaped parts (14), an accommodating groove (16) being formed between two adjacent fan-shaped parts (14); a stator core (20), sleeved on the outer circumference of the rotor core (10), and comprising a plurality of stator units (22) enclosed as a ring shape. The solution limits the P-S coefficient of the motor (100) and the number of slots per pole per phase so as to reduce the vibration and noise of the motor (100), while also causing the power density and efficiency of the motor (100) to be high, and effectively reducing the cost of the motor (100).
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