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Method and motor assembly for reducing interference of motor magnetic flux leakage to magnetic encoder

A magnetic encoder and magnetic encoding technology are applied in a method of reducing the interference of motor magnetic flux leakage to magnetic encoder and the field of motor components, which can solve the problems of magnetic encoder interference, magnetic encoder accuracy and performance discount, failure and the like, Achieve the effect of ensuring accuracy and reducing magnetic interference

Active Publication Date: 2020-06-05
UBTECH ROBOTICS CORP LTD
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Problems solved by technology

[0003] However, magnetic encoders are susceptible to magnetic field interference, and motor flux leakage is a large source of magnetic field interference
If effective measures are not taken to reduce the influence of motor magnetic flux leakage, the accuracy and performance of the magnetic encoder will be greatly reduced, or even fail

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  • Method and motor assembly for reducing interference of motor magnetic flux leakage to magnetic encoder
  • Method and motor assembly for reducing interference of motor magnetic flux leakage to magnetic encoder
  • Method and motor assembly for reducing interference of motor magnetic flux leakage to magnetic encoder

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] The terms "first", "second", and "third" in the embodiments of the present invention are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means a...

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Abstract

The invention discloses a method for reducing interference of motor magnetic leakage on a magnetic encoder and a motor assembly. The method for reducing the interference of the motor magnetic leakageon the magnetic encoder comprises the following steps: detecting the distribution condition of the motor magnetic leakage and finding out a first position with relatively small motor magnetic leakage;mounting the first position of the motor proximate to the magnetic encoder. By the above-mentioned mode, the magnetic interference of the magnetic field generated by the motor magnetic leakage to themagnetic encoder can be reduced.

Description

technical field [0001] The present application relates to the field of motor speed detection, in particular to a method and a motor assembly for reducing the interference of magnetic flux leakage from a motor to a magnetic encoder. Background technique [0002] Magnetic encoders are often used to detect and feed back information such as the position and speed of the motor rotor or the output shaft of the steering gear. It adopts a magnetoelectric design, and uses magnetic induction devices to detect the absolute position of the motor rotor by using changes in the magnetic field. [0003] However, the magnetic encoder is easily disturbed by the magnetic field, and the magnetic flux leakage of the motor is a large source of magnetic field interference. If effective measures are not taken to reduce the influence of motor magnetic flux leakage, the accuracy and performance of the magnetic encoder will be greatly reduced, or even fail. Contents of the invention [0004] The te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00
CPCH02K11/215H02K15/00
Inventor 熊友军莫振敏张礼富周升
Owner UBTECH ROBOTICS CORP LTD
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