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Operation apparatus of compressor and control method thereof

A technology for starting devices and compressors, used in pump control, machine/engine, heating and ventilation control systems, etc., to solve problems such as reduced compressor performance, overcurrent, and longer starting time.

Inactive Publication Date: 2007-07-04
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, since this existing compressor overload protector is connected to the compressor and supplies and cuts off AC current according to the temperature of the compressor, although the compressor can be protected, it cannot be turned off until the overload protector switches to the switch-off state (OLP TRIP ) until overcurrent and high temperature continue to occur, thereby reducing the performance of the compressor and may eventually cause damage to the compressor
[0009] Moreover, when restarting according to the overload protector, it takes a long time for the temperature to rise and fall, so the startup time becomes longer, and because the number of failed startups cannot be detected, it is necessary to set up a special protection control for mechanical failure of the compressor unit

Method used

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  • Operation apparatus of compressor and control method thereof
  • Operation apparatus of compressor and control method thereof
  • Operation apparatus of compressor and control method thereof

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Embodiment Construction

[0029] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0030] Fig. 1 is a diagram of the refrigeration passage of an air conditioner using a compressor provided by the present invention.

[0031] In Fig. 1, the air conditioner provided according to the present invention includes an outdoor unit 10 for forming a general refrigeration cycle and an indoor unit 50 connected to the outdoor unit 10 to cool / heat the indoor space, and the indoor unit Refrigeration piping is provided between the 50 and the outdoor unit 10 .

[0032] The outdoor unit 10 includes: a compressor 12 for compressing the refrigerant into a high-temperature and high-pressure gaseous refrigerant; a four-way valve 14 for adjusting the temperature of the compressor 12 according to the operating mode (cooling or heating). The flow direction of the compressed high-temperature and high-pressure gaseous refrigerant; the outdoor heat exchanger 16 is us...

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Abstract

The invention relates to a compressor starting device and its control method, which detects compressor startup failure by using a current transformer to measure the input current when the compressor starts, thereby preventing compressor damage caused by overcurrent and high temperature, and controlling The compressor starts up again. Therefore, the present invention is to: judge whether to start the compressor; if the compressor is started, then measure the current input to the compressor; and compare the measured current value with a predetermined reference current value, when the measured current value exceeds When the reference current value is reached, the time is calculated; if the time exceeds the predetermined reference time, the compressor control signal is cut off.

Description

technical field [0001] The present invention relates to a compressor starting device and its control method, in particular to a compressor starting device and its control method for preventing damage to the compressor caused by re-starting after initial startup failure by measuring the input current value when the compressor starts . Background technique [0002] A refrigeration device that uses a refrigeration cycle to cool the surrounding space, such as an air conditioner or a refrigerator, has a compressor for compressing a refrigerant flowing in a closed circuit of the refrigeration cycle. [0003] Usually, the appearance of the compressor is formed by an airtight container whose bottom surface forms an oil storage space, and inside the airtight container are provided a compression part for compressing the refrigerant, a driving part for providing the compression power required for compressing the refrigerant, and a To connect the compression pa...

Claims

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Application Information

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IPC IPC(8): F04B49/02
CPCF25B49/022F25B2600/0251F25B2700/151F24F11/32F24F11/52F24F11/62
Inventor 朴炳准
Owner SAMSUNG ELECTRONICS CO LTD
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