Air conditioner for heat pump defrosting
The utility model discloses an air conditioner for heat pump defrosting. The air conditioner comprises a compressor, a four-way reversing valve, an indoor heat exchanger and a main capillary tube, wherein one path of the four-way reversing valve is connected with the indoor heat exchanger, the other...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses an air conditioner for heat pump defrosting. The air conditioner comprises a compressor, a four-way reversing valve, an indoor heat exchanger and a main capillary tube, wherein one path of the four-way reversing valve is connected with the indoor heat exchanger, the other path thereof is connected with a back calandria tube and a front calandria tube of an outdoor heat exchanger, and the main capillary tube is connected between the front calandria tube of the outdoor heat exchanger and the indoor heat exchanger. The utility model is characterized in that a bypass pipe with a bypass solenoid valve is adopted to bypass the compressor and the front calandria tube of the outdoor heat exchanger; a solenoid valve and the capillary tube are connected in parallel between the front calandria tube of the outdoor heat exchanger and the back calandria tube of the outdoor heat exchanger; and when the solenoid valve is closed, and the by-pass solenoid valve is opened, the four-way reversing valv |
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