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Linear motor control circuit and linear motor

A control circuit, linear motor technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of large ineffective voltage, limited application fields, poor versatility, etc., to achieve the effect of flexible control and improved versatility

Inactive Publication Date: 2017-01-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of turns of the linear motor, the inductance is large, and the ineffective voltage consumed on the inductance is large, so the controller needs to provide a high voltage to realize the compressor control, so that the control circuit using a single coil can only be used High voltage control range, limited application fields, poor versatility

Method used

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  • Linear motor control circuit and linear motor
  • Linear motor control circuit and linear motor
  • Linear motor control circuit and linear motor

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Embodiment Construction

[0038] 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.

[0039] Such as figure 2 As shown, it is a linear motor control circuit disclosed in an embodiment of the present invention, including: a first coil 21, a second coil 22 and a switching tube control circuit 23; wherein:

[0040] The first coil 21 and the second coil 22 are connected and respectively fixed on the insulating frame of the linear motor;

[0041] The switching tube control circuit 23 is connected to the first coil 21 and the second coil 22 to cont...

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Abstract

The invention discloses a linear motor control circuit, which comprises a first coil, a second coil and a switch transistor control circuit, wherein the first coil and the second coil are connected and are fixed on an insulated skeleton of the linear motor respectively; and the switch transistor control circuit is connected with the first coil and the second coil for controlling current flowing through the first coil and the second coil. Through changing the coil of the linear motor into the first coil and the second coil, current flowing through the first coil and the second coil is controlled through the switch transistor control circuit, different sizes of thrust can be provided, flexible linear motor control is realized, and the universality of the linear motor is improved.

Description

technical field [0001] The invention relates to the technical field of linear motors, in particular to a linear motor control circuit and a linear motor. Background technique [0002] Linear compressors are the first choice for new air conditioners and refrigerator compressors due to their simple structure, less mechanical energy loss, and high energy efficiency. The power source of the linear compressor is the linear motor. At present, the linear motor used in the linear compressor is a single coil wound on the skeleton, and the control is controlled by an "H bridge" with 4 switch tubes, such as figure 1 shown. By controlling the turn-on and turn-off of these four switch tubes, the current flowing through the coil can be controlled, and then the thrust can be controlled to make the motor do work. Due to the large number of turns of the linear motor, the inductance is large, and the ineffective voltage consumed on the inductance is large, so the controller needs to provide...

Claims

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Application Information

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IPC IPC(8): H02P25/06H02P25/18
Inventor 区均灌刘亚祥程海珍张东盛
Owner GREE ELECTRIC APPLIANCES INC
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