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Air conditioner

A technology for air conditioners and compressors, applied to refrigerators, compressors, mechanical equipment, etc., to achieve the effects of preventing atmospheric warming, improving operating efficiency, and shortening operating time

Inactive Publication Date: 2004-01-21
SHANGHAI SHARP ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the inverter type air conditioner also performs intermittent operation in order to stabilize the room temperature near the set temperature. As described above, during this intermittent operation, it is not possible to accurately determine whether to defrost, and there is a possibility of empty defrosting operation or Defrost operation is performed regardless of whether defrosting is necessary

Method used

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Embodiment Construction

[0037]The air conditioner shown in FIG. 1 is an inverterless air conditioner and includes an outdoor unit A and an indoor unit B. As shown in FIG. Outdoor unit A is equipped with compressor 1, four-way switching valve 2, pressure reducer 4, outdoor side heat exchanger 5 and outdoor side blower 8, and indoor unit B is equipped with indoor heat exchanger 3, indoor air temperature sensor 6 and indoor blower 7. The power supplied to the indoor unit B is the mains power supply, and the power is supplied to the outdoor unit A through the wires connecting the indoor and outdoor units. On the side of the outdoor unit A, the power consumption current flowing through the compressor 1 is detected by the current detection device 9 . In addition, in order to measure the temperature of the outdoor heat exchanger, the outdoor unit A is provided with a thermistor for temperature detection and a control circuit.

[0038] In the air conditioner shown in FIG. 1 , a compressor 1 , a four-way s...

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Abstract

In order to stabilize room temperature by adjusting heating capability, intermittent operation of a compressor 1 is performed with operation time of compressor 1 temporarily made longer at a prescribed timing, so that determination as to whether outdoor heat exchanger 5 is frosted or not can be made with high accuracy. Therefore, idle defrosting operation is prevented and defrosting operation is performed without fail when necessary. Therefore, heating efficiency is improved.

Description

technical field [0001] The present invention relates to air conditioners. In particular, the present invention relates to an air conditioner with a heating function for stabilizing an indoor temperature near a set temperature. Background technique [0002] We know that in the past, when the air conditioner was in heating operation, frost formed on the heat exchanger of the outdoor unit. This is because, since the heat exchanger of the outdoor unit becomes an evaporator during heating operation, the evaporating temperature drops as the outside temperature drops. When the outside temperature is below 5°C, the evaporation temperature during heating operation is -5 to 10°C, and the moisture in the air in contact with the heat exchanger of the outdoor unit turns into frost on the surface of the heat exchanger. Once the frost comes out, the air volume passing through will be reduced, the heat transfer efficiency will be reduced, and the frost will be formed on the heat exchanger...

Claims

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Application Information

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IPC IPC(8): F24F11/02F24F11/00F25B13/00F25B47/02F25B49/02F25D21/00
CPCF25B13/00F24F2011/0087F25B49/022F25B2600/0251F25B47/025F25D21/002F25B49/025F24F11/0086F24F11/30F24F11/41F24F11/65
Inventor 柴田悦雄绀谷守池田裕邦
Owner SHANGHAI SHARP ELECTRONICS