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Motor and household appliance

A technology of magnets and components, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve problems such as limited axial space, achieve the effect of reducing the interference of the magnetic field and adjusting the speed accurately

Active Publication Date: 2021-08-13
GUANGDONG WELLING ELECTRIC MACHINE MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the present invention proposes a motor, which can solve the problem of limited axial space, effectively reduce the interference of the magnetic field of the motor to the magnet, and is more practical and reliable

Method used

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  • Motor and household appliance
  • Motor and household appliance
  • Motor and household appliance

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Embodiment Construction

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "inner", "outer", "axial", "radial", and "circumferential" are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, a...

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Abstract

The invention discloses a motor and a household electrical appliance. The motor comprises a rotor assembly and a magnetic induction part, wherein the rotor assembly comprises a rotor iron core and a rotating shaft connected with the rotor iron core, the rotor iron core is provided with a rotor end ring along the axial end part of the rotating shaft, and a groove is formed in the surface of the rotor end ring; a magnet is arranged in the groove, and the magnetic induction part has an induction surface for detecting the change of a magnetic field, so that the axial space of the motor can be saved, and the output power and the loading capacity of the motor can be improved; and the induction surface of the magnetic induction part faces the magnet and is perpendicular to the axial direction of the rotating shaft, so that the induction surface detects the magnetic field of the magnet in the axial direction, the influence of the magnetic field of the motor on the magnetic field of the magnet is reduced, the interference of the magnetic field of the motor is effectively reduced, the induction surface can accurately detect the magnetic field change of the magnet, and the motor can adjust the rotating speed more accurately.

Description

technical field [0001] The invention relates to the technical field related to motors, in particular to a motor and a household appliance. Background technique [0002] The AC motor with PG (Pulse Generator, pulse generator) speed regulation usually has a magnetic ring on the rotor. The magnetic ring is installed at the position of the rotor bearing, and a Hall sensor is arranged above the magnetic ring. The Hall sensor senses the magnetic field of the magnetic ring. Change, obtain the speed signal of the rotor, and then feed the signal back to the whole machine to realize the speed adjustment. However, the axial space occupied by the magnetic ring is relatively large, and the power density of the motor cannot be increased under the condition of a certain installation size limitation. [0003] In related technologies, the magnetic ring is installed on the rotor core to save axial space, but the magnetic field of the motor will affect the magnetic field distribution of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/215H02K11/01H02K1/27
CPCH02K11/215H02K13/00H02K2213/03
Inventor 李伟李虎甘峰
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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