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Apparatus for controlling driving linear motor and method thereof

一种线性电动机、控制信号的技术，应用在机电装置、交流电动机控制、直流电动机速度/转矩控制等方向，能够解决降低压缩效率、压缩机效率降低、不能变动内线圈匝数等问题，达到提高效率、降低谐波损失的效果

Inactive Publication Date: 2005-11-30
LG ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] However, in the linear compressor manufactured according to the conventional technique, the number of turns of the inner linear motor coil is pre-designed so as to correspond to the normal load, and the triac (not shown), This motor-powered AC power, when driving a linear motor in normal mode, creates harmonic losses that reduce compression efficiency
[0011] That is to say, conventional linear motors cannot change the number of turns of the inner coil, so that the efficiency of the compressor is reduced by harmonic losses

Method used

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  • Apparatus for controlling driving linear motor and method thereof
  • Apparatus for controlling driving linear motor and method thereof
  • Apparatus for controlling driving linear motor and method thereof

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Embodiment Construction

[0026] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0027] In the following, reference will be made to image 3 as well as Figure 4A and 4B , to illustrate a device and method for controlling the drive of a linear motor; this device detects the current applied to the linear motor installed on the linear reciprocating compressor, and then generates a control signal according to the detected current, and then further According to the control signal, changing the number of turns of the coil of the linear motor can improve the efficiency of the linear compressor, and can stably drive the linear motor when the linear motor is overloaded.

[0028] image 3 Shown is a device for controlling the drive of a linear motor made in accordance with the invention.

[0029] Such as image 3 As shown, the device for controlling the drive of the linear motor 200 mounted on the linear c...

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Abstract

An apparatus and method for controlling driving of a linear motor, which is configured to increase efficiency of a linear compressor and stably drive the linear motor when the linear motor is overloaded. The apparatus includes a detector that detects a current applied to a motor, a controller that outputs a control signal based on the detected current and a switch that varies the number of windings of the linear motor coil on the basis of the control signal.

Description

technical field [0001] The present invention relates to a motor and a device and method for controlling the drive of a linear motor mounted on a linear compressor. Background technique [0002] In general, a linear compressor, especially a linear motor mounted on a linear compressor, is not equipped with a crankshaft that converts a rotary motion into a linear motion, thereby reducing friction loss. According to this, the compression efficiency of the linear compressor is better than that of the ordinary compressor. [0003] When the linear electric compressor is used in an ice housing or an air conditioner, the stroke voltage input to the linear motor is changed, so that the compression ratio of the linear compressor is changed, thereby controlling the cooling capacity. [0004] The linear compressor will refer to figure 1 To illustrate. [0005] figure 1 is a sectional view of a linear compressor manufactured according to conventional technology. [0006] Such as fig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B35/04F04B49/00H02K41/02H02P25/06
CPCH02P25/06F04B49/00
Inventor 李宰模许庆范
Owner LG ELECTRONICS INC
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