Compressor heating system and method

A heating system and compressor technology, applied in the field of compressor heating, can solve the problems of easy aging, low reliability of the heating belt, and difficult circuit breaking, and achieve the effect of ensuring the heating effect, ensuring the power, and avoiding the reduction of the current.

Active Publication Date: 2018-05-08
HUAWEI DIGITAL POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a compressor heating system and method, which are used to solve the problems of low reliability, easy aging, and difficult detection of open circuit in the heating belt existing in the existing compressor heating method

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  • Compressor heating system and method
  • Compressor heating system and method
  • Compressor heating system and method

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Example Embodiment

[0068] When the compressor in the air-conditioning system is stopped, the compressor needs to be heated to prevent the liquid refrigerant from flowing into the compressor with a lower temperature. In the existing compressor heating method, a flexible heating belt is usually arranged outside the compressor to heat the compressor body. However, the heating belt has problems such as low reliability, easy aging, and difficult to detect disconnection, and the installation of the heating belt also has the problems of high initial investment cost and high maintenance cost.

[0069] In order to solve the above problems, the present application provides a compressor heating system and method, which supplies power to the windings in the compressor, so that the windings generate heat to heat the compressor, and a detection circuit is provided to detect the voltage / or current in the windings to indicate the compressor The temperature of the compressor is then determined whether to stop heatin

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Abstract

The embodiment of the invention provides a compressor heating system and method. The system comprises a control circuit, a compressor and a detection circuit. The control circuit is connected with a winding of the compressor and the detection circuit. The detection circuit is connected with the winding. The control circuit is used for providing voltage or current with preset frequency for the winding after the compressor stops working or supplying power to one part of the winding, and therefore the temperature of the winding is increased when the winding stops working. The detection circuit isused for detecting voltage at the two ends of the winding or current flowing through the winding, and sending detection results to the control circuit. The control circuit is also used for determining whether or not to continuously supply power to the winding to continuously heat the winding according to the detection results and environment temperature; and the environment temperature is the temperature of an evaporator or condenser connected with the compressor. According to the compressor heating system, the winding temperature is indicted through the voltage or current detection results of the winding, the heating effect is good, and the sealing performance of a cavity of the compressor is protected.

Description

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Claims

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Application Information

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Owner HUAWEI DIGITAL POWER TECH CO LTD
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