CN210980079U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN210980079U CN210980079U CN201921870650.6U CN201921870650U CN210980079U CN 210980079 U CN210980079 U CN 210980079U CN 201921870650 U CN201921870650 U CN 201921870650U CN 210980079 U CN210980079 U CN 210980079U
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- refrigerant
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Abstract
An embodiment of the present application provides an air conditioner, wherein an indoor heat exchanger of the air conditioner is configured by an outdoor control part to work as an evaporator to enable an ice layer to be formed on the surface of the indoor heat exchanger, and after the ice layer is formed on the surface of the indoor heat exchanger, the indoor heat exchanger is configured to work as a condenser to enable the ice layer formed on the surface of the indoor heat exchanger to be melted; the expansion valve is controlled by the outdoor control part to maintain unchanged the opening degree when the compressor is configured to stop working and the opening degree when the indoor heat exchanger is configured to the evaporator working, thereby preventing the refrigerant from rapidly circulating in the indoor heat exchanger due to the increase of the opening degree of the expansion valve when the compressor stops working, further ensuring that the melting rate of the ice layer on the surface of the indoor heat exchanger is overlarge, reducing the melting rate of the ice layer on the surface of the indoor heat exchanger due to the unchanged opening degree of the expansion valve, ensuring that the condensed water formed by melting the ice layer is slowly formed on the surface of the indoor heat exchanger, ensuring that the condensed water is sufficient and absorbs dust, and improving the water quantity of the condensed water to increase.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air conditioner.
Background
After the air conditioner is placed or used for a long time, certain dust and dirt exist on the surface of the heat exchanger, and the dust and dirt can reduce the heat exchange efficiency of the heat exchanger, so that the performance of the air conditioner is reduced, and the energy consumption is improved. The main cleaning modes of the existing air conditioner are as follows: the surface of a coil pipe of the indoor unit is frozen to form an ice layer under the refrigerating working condition, the refrigerating working condition is switched to the heating working condition, the ice layer is melted and condensed water is formed, the condensed water is pushed by air flow provided by the fan to take away dust on the surface of the heat exchanger, and the cleaning effect on the air conditioner is realized.
Disclosure of Invention
The embodiment of the application provides an air conditioner and an air conditioner cleaning method, which are used for solving the problem of poor air conditioner cleaning effect in the prior art and effectively cleaning the air conditioner.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
the embodiment of the application provides an air conditioner, which comprises a compressor, a first refrigerant separator, a second refrigerant separator, a first refrigerant separator and a second refrigerant separator, wherein the compressor is used for compressing a low-pressure refrigerant to form a high-pressure refrigerant; the indoor heat exchanger is used for exchanging heat between indoor airflow and a refrigerant transmitted in the indoor heat exchanger; the outdoor heat exchanger is used for exchanging heat between outdoor airflow and a refrigerant transmitted in the outdoor heat exchanger; the expansion valve is connected between the indoor heat exchanger and the outdoor heat exchanger, and the pressure of a refrigerant flowing through the indoor heat exchanger and the outdoor heat exchanger is adjusted according to the opening degree of the expansion valve; an outdoor control part configured to control an opening degree of the expansion valve and an operating frequency of the compressor; a refrigerant loop, which is composed of the compressor, the outdoor heat exchanger, the expansion valve and the indoor heat exchanger which are connected in sequence, wherein the refrigerant circularly flows in the refrigerant loop; the indoor heat exchanger is configured to work by the outdoor control part so as to enable the surface of the indoor heat exchanger to form an ice layer, and after the ice layer is formed on the surface of the indoor heat exchanger, the compressor is configured to stop working by the outdoor control part according to preset shutdown time so as to enable the ice layer formed on the surface of the indoor heat exchanger to melt; the expansion valve is controlled by the outdoor control unit such that an opening degree of the expansion valve when the compressor is configured to stop operating and an opening degree of the expansion valve when the indoor heat exchanger is configured to operate the evaporator are maintained constant.
Further, the air conditioner further includes: and the four-way valve is connected in the refrigerant loop and switches the flow direction of the refrigerant in the refrigerant loop under the control of the outdoor control part so that the indoor heat exchanger works as an evaporator or a condenser.
Further, the compressor is configured to be started up by the outdoor control part after the preset shutdown time, and the indoor heat exchanger is configured to be operated by the outdoor control part as a condenser to dry the surface of the indoor heat exchanger.
An embodiment of the present application provides an air conditioner, wherein an indoor heat exchanger of the air conditioner is configured by an outdoor control part to work as an evaporator to enable an ice layer to be formed on the surface of the indoor heat exchanger, and after the ice layer is formed on the surface of the indoor heat exchanger, the indoor heat exchanger is configured to work as a condenser to enable the ice layer formed on the surface of the indoor heat exchanger to be melted; the expansion valve is controlled by the outdoor control part to maintain the opening degree when the compressor is configured to stop working and the opening degree when the indoor heat exchanger is configured to work as the evaporator, thereby preventing the refrigerant from rapidly circulating in the indoor heat exchanger due to the increase of the opening degree when the compressor stops working, ensuring that the melting rate of the ice layer on the surface of the indoor heat exchanger is overlarge, reducing the melting rate of the ice layer on the surface of the indoor heat exchanger due to the unchanged opening degree of the expansion valve, ensuring that condensed water formed by melting the ice layer is slowly formed on the surface of the indoor heat exchanger, ensuring that the condensed water is fully contacted with the surface of the indoor heat exchanger to absorb dust attached to the surface of the indoor heat exchanger, improving the water quantity of the condensed water to increase the flushing of the dust, improving the cleaning effect of the condensed water on the dust on the surface of the indoor heat exchanger, the heat exchanger in the air conditioner is effectively cleaned.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present application;
fig. 2 is a system schematic diagram of an air conditioner according to an embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings.
As shown in fig. 1 and 2, an embodiment of the present invention provides an air conditioner, which is a split type air conditioner including an outdoor unit 10 and an indoor unit 20, wherein the outdoor unit 10 and the indoor unit 20 are connected by a pipe to transmit a refrigerant, and are connected by a data connection line to transmit communication information.
The air conditioner may include an air cleaning unit, a ventilation unit, a humidification unit, a dehumidification unit, a heater, and the like, in addition to the outdoor unit 10 and the indoor unit 20. The above units can be integrally controlled in a state of being coupled to the outdoor unit 10 and the indoor unit 20.
The outdoor unit 10 includes a compressor 11, an outdoor heat exchanger 12, an expansion valve 13, an outdoor control unit 14, an outdoor fan 15, and a four-way valve 16.
The compressor 11 is configured to compress a refrigerant such that a low-pressure refrigerant is compressed to form a high-pressure refrigerant.
The outdoor heat exchanger 12 is configured to exchange heat between outdoor air and a refrigerant transmitted in the outdoor heat exchanger 12, and specifically, the outdoor heat exchanger 12 operates as a condenser under a refrigeration condition of the air conditioner, so that the refrigerant compressed by the compressor 11 is condensed in the outdoor heat exchanger 12; the outdoor heat exchanger 12 operates as an evaporator under the heating condition of the air conditioner, so that the decompressed refrigerant is evaporated in the outdoor heat exchanger 12.
Further, the cooling fins (not shown) of the outdoor heat exchanger 12 serve to improve heat exchange efficiency between the outdoor air and the refrigerant by enlarging a surface area between the outdoor air and refrigerant tubes (not shown) of the outdoor heat exchanger 12 through which the refrigerant passes.
The expansion valve 13 is connected between the indoor heat exchanger 21 and the outdoor heat exchanger 12, and the refrigerant pressure flowing through the indoor heat exchanger 21 and the outdoor heat exchanger 12 is adjusted by the opening degree of the expansion valve 13 to adjust the refrigerant flow rate flowing between the indoor heat exchanger 21 and the outdoor heat exchanger 12, wherein the flow rate value and the pressure value of the refrigerant flowing through the indoor heat exchanger 21 and the outdoor heat exchanger 12 affect the heat exchange performance of the indoor heat exchanger 21 and the outdoor heat exchanger 12. The expansion valve 13 may be an electronic valve, and the opening degree of the expansion valve 13 may be adjustable to control the flow rate and pressure of the refrigerant flowing through the expansion valve 13.
The outdoor control part 14 is configured to control the opening degree of the expansion valve 13 and the operating frequency of the compressor 11.
The outdoor fan 15 is used for sucking outdoor air into the outdoor unit 10 through an outdoor air inlet, exchanging heat through the outdoor heat exchanger 12, and sending the outdoor air out through an outdoor air outlet, and the outdoor fan 15 provides power for the air flow.
The four-way valve 16 is connected in the refrigerant circuit, and the four-way valve 16 is controlled by the outdoor control part 14 to switch the flow direction of the refrigerant in the refrigerant circuit so as to enable the indoor unit 20 to execute the cooling or heating working condition.
And a refrigerant loop, which is composed of a compressor 11, an outdoor heat exchanger 12, an expansion valve 13 and an indoor heat exchanger 21, which are sequentially connected, wherein the refrigerant circularly flows in the refrigerant loop, so that the indoor heat exchanger 21 and the outdoor heat exchanger 12 respectively exchange heat with air, and refrigeration or heating of the indoor unit 20 is realized.
The indoor unit 20 includes an indoor heat exchanger 21, an indoor fan 22, and an indoor control unit 23.
The indoor heat exchanger 21 exchanges heat between the indoor air flow and the refrigerant passing through the indoor heat exchanger 21.
The indoor fan 22 is used for sucking indoor air into the indoor unit 20 through an indoor air inlet, sending the indoor air out through an indoor air outlet after heat exchange is performed by the indoor heat exchanger 21, and providing power for air flowing by the indoor fan 22.
The indoor control part 23 is configured to control the rotation speed of the indoor fan 22, and the indoor control part 23 is connected to the outdoor control part 14 through a data line to transmit communication information.
The indoor unit 20 is controlled to perform a cooling operation and the compressor 11 is operated in order to clean dust attached to the surface of the indoor heat exchanger 21. Specifically, the four-way valve 16 is controlled by the outdoor control unit 14 such that the refrigerant flows in the refrigerant circuit in the preset flow direction to operate the indoor unit 20 in the cooling mode, the indoor heat exchanger 21 is configured to operate as an evaporator when the indoor unit 20 operates in the cooling mode, and water molecules in the air are cooled on the surface of the indoor heat exchanger 21, and then are condensed on the surface of the indoor heat exchanger 21 to further form an ice layer.
After the ice layer is formed on the surface of the indoor heat exchanger 21, the outdoor control unit 14 controls the compressor 11 to stop according to the preset stop time, so that the compressor 11 maintains a stop state for the preset stop time, and the overpressure protection is implemented when the working condition of the indoor unit 20 of the compressor 11 is switched, for example, the preset stop time of the compressor 11 is 3 minutes.
After the compressor 11 is kept in a stop state for a preset shutdown time, the outdoor control part 14 controls the compressor 11 to start to work, the outdoor control part 14 controls the four-way valve 16 to enable a refrigerant to flow in a refrigerant loop according to a preset flow direction so as to enable the indoor unit 20 to work in a heating working condition, and when the indoor unit 20 works in the heating working condition, the indoor heat exchanger 21 is configured to work as a condenser, so that an ice layer formed on the surface of the indoor heat exchanger 21 is melted by the condenser, dust contained in the ice layer can be cleaned by condensed water formed by melting of the ice layer, meanwhile, the flow of the condensed water on the surface of the indoor heat exchanger 21 can flush the surface of the indoor heat exchanger 21, and the surface of the indoor heat exchanger 21 is ensured to be clean.
In order to improve the cleaning effect on the surface of the indoor heat exchanger 21, in the embodiment of the present application, the opening degree of the expansion valve 13 is controlled by the outdoor control unit 14 to be constant during the preset shutdown time when the compressor 11 is configured to be in the shutdown operation and the opening degree of the expansion valve 13 when the indoor heat exchanger 21 is configured to be in the evaporator operation, that is, the opening degree of the expansion valve 13 during the shutdown operation of the compressor is the same as the opening degree thereof during the operation of the indoor unit 20 for forming the ice layer under the refrigeration condition, for example, the opening degree of the expansion valve 13 during the shutdown operation of the compressor is 400 °, and the opening degree of the expansion valve 13 during the operation of the indoor unit 20 for forming the ice layer under the refrigeration.
It should be noted that, by maintaining the opening degree of the expansion valve 13 unchanged within the preset shutdown time in which the compressor 11 is configured to perform shutdown operation, the refrigerant is prevented from flowing through the indoor heat exchanger 21 quickly, the heat exchange performance of the indoor heat exchanger 21 can be reduced when the refrigerant with a lower flow rate flows through the indoor heat exchanger 21, and further, the ice layer melting rate on the surface of the indoor heat exchanger is reduced, so that the condensed water formed by melting the ice layer is formed on the surface of the indoor heat exchanger 21 slowly, the condensed water formed by melting slowly can be fully contacted with the surface of the indoor heat exchanger 21 to absorb and flush the dust attached to the indoor heat exchanger 21, and meanwhile, the water amount of the condensed water can be increased to increase the flushing of the dust on the surface of the heat exchanger, and further improve the cleaning performance of the.
It should be noted that the compressor 11 is stopped within the preset stop time, which is intended to protect the compressor 11 from overvoltage protection before the indoor unit 20 is switched from the cooling condition to the heating condition, and in order to quickly start the subsequent heating condition, the opening of the expansion valve 13 cannot be reduced so that the pressure between the indoor unit and the outdoor unit is too large to affect the restart of the compressor 11 and the stability of the refrigerant circuit.
The above units may be individually configured processors, or may be implemented by being integrated into one of the processors of the controller, or may be stored in a memory of the controller in the form of program codes, and the functions of the above units may be called and executed by one of the processors of the controller. The processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present Application.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Claims (3)
1. An air conditioner, characterized by comprising:
the compressor is used for compressing the low-pressure refrigerant to form a high-pressure refrigerant;
the indoor heat exchanger is used for exchanging heat between indoor airflow and a refrigerant transmitted in the indoor heat exchanger;
the outdoor heat exchanger is used for exchanging heat between outdoor airflow and a refrigerant transmitted in the outdoor heat exchanger;
the expansion valve is connected between the indoor heat exchanger and the outdoor heat exchanger, and the pressure of a refrigerant flowing through the indoor heat exchanger and the outdoor heat exchanger is adjusted according to the opening degree of the expansion valve;
an outdoor control part configured to control an opening degree of the expansion valve and an operating frequency of the compressor;
a refrigerant loop, which is composed of the compressor, the outdoor heat exchanger, the expansion valve and the indoor heat exchanger which are connected in sequence, wherein the refrigerant circularly flows in the refrigerant loop;
the indoor heat exchanger is configured to work by the outdoor control part so as to enable the surface of the indoor heat exchanger to form an ice layer, and after the ice layer is formed on the surface of the indoor heat exchanger, the compressor is configured to stop working by the outdoor control part according to preset shutdown time so as to enable the ice layer formed on the surface of the indoor heat exchanger to melt;
the expansion valve is controlled by the outdoor control unit such that an opening degree of the expansion valve when the compressor is configured to stop operating and an opening degree of the expansion valve when the indoor heat exchanger is configured to operate the evaporator are maintained constant.
2. The air conditioner according to claim 1, further comprising:
and the four-way valve is connected in the refrigerant loop and switches the flow direction of the refrigerant in the refrigerant loop under the control of the outdoor control part so that the indoor heat exchanger works as an evaporator or a condenser.
3. The air conditioner according to claim 1, wherein the compressor is configured to be started up by the outdoor control part after the preset off time, and the indoor heat exchanger is configured to be operated by the outdoor control part as a condenser to dry a surface of the indoor heat exchanger.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870650.6U CN210980079U (en) | 2019-11-01 | 2019-11-01 | Air conditioner |
| JP2020511161A JP7138162B2 (en) | 2019-11-01 | 2019-11-13 | air conditioner |
| PCT/CN2019/117906 WO2021082076A1 (en) | 2019-11-01 | 2019-11-13 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870650.6U CN210980079U (en) | 2019-11-01 | 2019-11-01 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210980079U true CN210980079U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921870650.6U Active CN210980079U (en) | 2019-11-01 | 2019-11-01 | Air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN210980079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076385A (en) * | 2020-08-10 | 2022-02-22 | 海信（山东）空调有限公司 | Air conditioner and automatic cleaning method for air conditioner outdoor unit |
-
2019
- 2019-11-01 CN CN201921870650.6U patent/CN210980079U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076385A (en) * | 2020-08-10 | 2022-02-22 | 海信（山东）空调有限公司 | Air conditioner and automatic cleaning method for air conditioner outdoor unit |
| CN114076385B (en) * | 2020-08-10 | 2023-12-26 | 海信空调有限公司 | Air conditioner and automatic cleaning method for air conditioner outdoor unit |
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