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Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor

A Hall sensor, brushed DC motor technology, applied in the direction of electronic commutator, electronic commutation motor control, electrical components, etc., can solve the problems of high noise, motor temperature rise, motor rotation speed inaccuracy, etc., to improve washing performance and the effect of extending the life of the motor

Inactive Publication Date: 2005-10-19
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0021] As mentioned above, when the position of the Hall sensor (15) deviates from the reference position of the mechanism, the phenomenon of inaccurate motor rotation speed, loud noise, and rise in motor temperature will occur when controlling the washing machine and similar loads, so that the motor cannot be effectively controlled.

Method used

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  • Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor
  • Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor
  • Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor

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Embodiment

[0034] Below, referring to the attached Figure 1 to Figure 3 Examples of the present invention are described. In the present invention, a stator (7) equipped with a Hall sensor (15), a rotor (8) rotating around the stator (7), and a signal detected by the Hall sensor (15) are received when the rotor (8) rotates. And in the direct drive type automatic washing machine of the motor of the microcomputer (not shown) that controls the stator (7) power supply, the mechanism deviation of the above-mentioned Hall sensor (15) is guaranteed on the circuit, thus even if the Hall sensor (15) is not correct It can also correctly control the input power of the motor if it is set at the reference position of the mechanism.

[0035] The specific process of ensuring the position deviation of the Hall sensor is as follows.

[0036] First, the rotor (8) is artificially rotated on the production line using a jig or the like, and the counter electromotive force generated at this time and the sen...

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Abstract

This invention discloses a method for ensuring the position deviation of a Hall sensor of a motor direct-drive washing machine applying a brush less DC motor characterizing that a microcomputer acknowledges the counter-electromotive force generated from rotating the rotor by man and the signal sensed by the Hall sensor to compute the potential sensed angle of the sensor and compute the difference between the sensed angle and the potential sensed angle of the Hall sensor on the primary stand and position, the above mentioned compute value of the sensed angle is considered to be stored as the initially acknowledged value.

Description

technical field [0001] The invention belongs to the technical field of washing machine transmissions, and in particular relates to a method for ensuring the position deviation of a Hall sensor of a brushless DC washing machine. In the position, it can also ensure the potential of the Hall sensor, so that it can correctly control the input power of the motor. Background technique [0002] Generally, the pulsator washing machine is a product that uses the softening effect of detergent, the friction of the water flow generated when the pulsator rotates, and the impact of the pulsator on the laundry to remove various pollutants from clothes and bedding. The recently released fully automatic washing machine can automatically perform the whole process of washing, rinsing, and dehydration without the user's operation in the middle. [0003] The drum washing machine is a product that uses the friction force between the drum and the laundry to be rotated by the driving force of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/00H02P6/16
Inventor 李云龙
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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