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A method and device for judging the rotation direction of a motor rotor

A technology of motor rotor and rotation direction, which is applied to measuring devices, instruments, indicating/recording actions, etc., and can solve problems such as judging the direction of motor rotors

Active Publication Date: 2018-02-16
UNI TREND TECH (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, in order to solve the existing method of judging the rotation direction of the motor rotor, it is necessary to affix an identification mark on the motor rotor, and the defect that the direction of the motor rotor with a closed casing cannot be judged, a method for judging the rotation of the motor rotor is provided. The method and device of the direction, the technical scheme are as follows:

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  • A method and device for judging the rotation direction of a motor rotor
  • A method and device for judging the rotation direction of a motor rotor
  • A method and device for judging the rotation direction of a motor rotor

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Embodiment Construction

[0041] 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.

[0042] see figure 1 , an embodiment of the present invention provides a schematic flow chart of a method for judging the direction of rotation of a motor rotor. An inductance coil is arranged outside the motor rotor. The method includes:

[0043] Step 110: Acquiring and detecting the induced electromotive force of the inductance coil, converting the induced electromotive force into a DC level, and inputting the DC level into the trigger.

[0044] Converting t...

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Abstract

The embodiment of the present invention provides a method and device for judging the rotation direction of a motor rotor. An inductance coil is arranged outside the motor rotor. The method includes: acquiring and detecting the induced electromotive force of the inductance coil, converting the induced electromotive force into a direct current level, input the DC level into the trigger; the trigger outputs a level signal according to the DC level, and inputs the level signal into the indicator light, and judges the rotor of the motor according to the lighting condition of the indicator light direction of rotation. The solutions provided by the embodiments of the present invention can be applied to motor rotors with closed casings and motor rotors without closed casings.

Description

technical field [0001] The invention relates to the field of motors, and more specifically relates to a method and device for judging the rotation direction of a motor rotor. Background technique [0002] At present, there is a detection device for judging the rotation direction of the motor rotor. The device includes a light source and an identification mark arranged around the motor rotor. By detecting the light emitted by the light source and passing through the identification mark device, the motor rotor can be judged. direction. [0003] Its shortcoming is that identification mark needs to be affixed on the motor rotor. If the motor has a closed casing, the identification mark cannot be affixed on the motor rotor, so the direction of the motor rotor cannot be judged. Contents of the invention [0004] In view of this, in order to solve the existing method of judging the rotation direction of the motor rotor, it is necessary to affix an identification mark on the moto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P13/04
Inventor 蔡永俭谢添富
Owner UNI TREND TECH (CHINA) CO LTD