Air conditioner

Abstract

The invention relates to an air conditioner. The air conditioner comprises: a compressor, an outdoor heat exchanger, a first four-way valve and a second four-way valve. The compressor is provided with an intake port and an exhaust port; the outdoor heat exchanger is provided with a first connecting pipe communicated with the upper part or the top of the outdoor heat exchanger and a second connecting pipe communicated with the lower part or the bottom of the outdoor heat exchanger; the first four-way valve is provided with a first connector communicated with the intake port, a second connector communicated with the exhaust port, a third connector capable of being communicated with an indoor heat exchanger of the air conditioner, and a fourth connector; and the second four-way valve is provided with a first connector communicated with the fourth connector of the first four-way valve, a second connector communicated with the first connecting pipe, a third connector communicated with the second connecting pipe and a fourth connector communicated with an outdoor expansion valve of the air conditioner. The first four-way valve and the second four-way valve are configured to be capable of reversing when the air conditioner enters a defrosting mode, so that a gas refrigerant exhausted from the exhaust port flows into the outdoor heat exchanger from the second connecting pipe. According to the air conditioner, the air conditioner configuration can ensure that water frosted at the upper part of the outdoor heat exchanger is not accumulated at the bottom, so that the defrosting time is shortened and the defrosting is thorough.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner. Background technique [0002] Air conditioners, including but not limited to integrated air conditioners, split air conditioners, one-to-many central air conditioners, and fresh air fans, are very common in modern society and are used to adjust the indoor temperature to make the indoor temperature more in line with people's physical comfort. The basic components of an air conditioner with a heating function generally include a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, and a throttle valve. When the air conditioner is heating, the compressor operates to compress the refrigerant into a high-temperature, high-pressure gas refrigerant; the high-temperature, high-pressure gas refrigerant then dissipates heat to the room through the indoor heat exchanger (which acts as a condenser at this time) to heat the room Air, while the...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems in the prior art, that is, in order to solve the technical problem of incomplete defrosting or frequent defrosting of the air conditioner in the prior art, the present invention provides an air conditioner, the air conditioner includes: a compressor, which has a suction port and an exhaust port; an outdoor heat exchanger, which has a first connecting pipe connected to the upper or top of the outdoor heat exchanger and a second connecting pipe connected to the lower or bottom of the outdoor heat exchanger; a first four-way valve, which has The first port communicated with the suction port, the second port communicated with the exhaust port, the third port communicated with the indoor heat exchanger of the air conditioner, and the fourth port; the second four-way valve , which has a first port communicated with the fourth port of the first four-way valve, a second port communicated with the first pipe, a third port communicated with the second pipe, and the air conditioner The fourth port that communicates with the outdoor expansion valve, wherein the first four-way valve and the second four-way valve are configured to be reversible when the air conditioner enters the defrosting mode so that the air is discharged from the exhaust port The gas refrigerant flows into the outdoor heat exchanger from the second connecting pipe

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