CN114517967A

CN114517967A - Control method of air conditioner, air conditioner and computer readable storage medium

Info

Publication number: CN114517967A
Application number: CN202210335601.2A
Authority: CN
Inventors: 汪楠
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Midea Group Wuhan HVAC Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Midea Group Wuhan HVAC Equipment Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-05-20
Anticipated expiration: 2042-03-31
Also published as: CN114517967B

Abstract

The invention discloses a control method of an air conditioner, the air conditioner and a computer readable storage medium. The air conditioner comprises a refrigerant circulation loop, a flow direction adjusting module and a semiconductor refrigeration module, and the method comprises the following steps: acquiring the ambient temperature of the environment where the air conditioner is located; when the ambient temperature reaches a preset condition, controlling the air conditioner to operate in a refrigeration mode or a heating mode, and controlling the flow direction adjusting module to operate so that a refrigerant which circularly flows in the air conditioner exchanges heat with the indoor heat exchanger through a target end in sequence; the target end is one end of the heat release end and the heat absorption end of the semiconductor refrigeration module, which is matched with the heat exchange state corresponding to the current operation mode of the air conditioner, and the preset condition is a condition which is required to be achieved by the environment temperature when the heat exchange quantity needs to be increased in the current operation mode of the air conditioner. The invention aims to improve the heat exchange capability of the air conditioner and improve the operation stability of the compressor.

Description

Control method of air conditioner, air conditioner and computer readable storage medium

Technical Field

The present invention relates to the field of air conditioners, and in particular, to a control method of an air conditioner, and a computer-readable storage medium.

Background

With the development of economic technology, the application of air conditioners is more and more extensive, and the application environment of the air conditioners is more and more complicated. Among them, many air conditioners are used in severe environments requiring extremely high or low temperatures.

At present, modes such as increasing the frequency of a compressor or increasing the enthalpy of air supply of the compressor are mostly used for improving the refrigerating capacity or the heating capacity of the air conditioner in a severe environment, however, the mode easily increases the operation load of the compressor, so that the compressor cannot stably operate, and the service life of the compressor is influenced.

Disclosure of Invention

The invention mainly aims to provide a control method of an air conditioner, the air conditioner and a computer readable storage medium, aiming at improving the heat exchange capability of the air conditioner in a severe environment and improving the operation stability of a compressor.

In order to achieve the above object, the present invention provides a control method for an air conditioner, the air conditioner includes a refrigerant circulation loop, the refrigerant circulation loop includes a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are sequentially communicated, the air conditioner further includes a flow direction adjusting module connected to the refrigerant circulation loop and a semiconductor refrigeration module connected to the flow direction adjusting module, the control method for the air conditioner includes the following steps:

acquiring the ambient temperature of the environment where the air conditioner is located;

when the ambient temperature reaches a preset condition, controlling the air conditioner to operate in a refrigeration mode or a heating mode, and controlling the flow direction adjusting module to operate so that a refrigerant which circularly flows in the air conditioner exchanges heat with the indoor heat exchanger through a target end in sequence;

the target end is one end of the heat release end and the heat absorption end of the semiconductor refrigeration module, which is matched with the heat exchange state corresponding to the current operation mode of the air conditioner, and the preset condition is a condition which is required to be achieved by the environment temperature when the heat exchange quantity needs to be increased in the current operation mode of the air conditioner.

Optionally, the flow direction adjusting module includes a first branch, a first control valve, and a second control valve, a heat absorption end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected in parallel with the first control valve, and the flow direction adjusting module is controlled to operate, so that the step of exchanging heat between the target end and the indoor heat exchanger of the refrigerant flowing in the air conditioner in a circulating manner sequentially includes:

and when the air conditioner is in the cooling mode, controlling the first control valve to be closed and controlling the second control valve to be opened.

Optionally, the flow direction adjusting module includes a second branch, a third control valve and a fourth control valve, a heat releasing end of the semiconductor refrigeration module is in heat exchange connection with the second branch, the third control valve is disposed between the indoor heat exchanger and the compressor, the fourth control valve is disposed in the second branch, the second branch is connected in parallel with the third control valve, and the flow direction adjusting module is controlled to operate, so that the step of heat exchange between the target end and the indoor heat exchanger of the refrigerant circulating in the air conditioner sequentially includes:

when the air conditioner is in the cooling mode at present, controlling the third control valve to be opened, controlling the fourth control valve to be closed, controlling the first control valve to be closed and controlling the second control valve to be opened.

when the air conditioner is currently in the heating mode, controlling the third control valve to be closed and controlling the fourth control valve to be opened.

and when the target operation mode is the heating mode, controlling the first control valve to be opened, controlling the second control valve to be closed, controlling the third control valve to be closed, and controlling the fourth control valve to be opened.

Optionally, after the step of obtaining the ambient temperature of the environment where the air conditioner is located, the method further includes:

and when the ambient temperature does not reach the preset condition, controlling the flow direction adjusting module to operate so that the refrigerant entering the indoor heat exchanger does not exchange heat through the semiconductor refrigeration module.

Optionally, the flow direction adjusting module includes a first branch, a first control valve, and a second control valve, a heat absorption end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected in parallel with the first control valve, and the flow direction adjusting module is controlled to operate, so that the step of exchanging heat of the refrigerant entering the indoor heat exchanger without passing through the semiconductor refrigeration module includes:

controlling the first control valve to be opened and controlling the second control valve to be closed;

and/or, the flow direction adjusting module comprises a second branch, a third control valve and a fourth control valve, the heat release end of the semiconductor refrigeration module is in heat exchange connection with the second branch, the third control valve is arranged between the indoor heat exchanger and the compressor, the fourth control valve is arranged on the second branch, the second branch is connected with the third control valve in parallel, and the flow direction adjusting module is controlled to operate so that the refrigerant entering the indoor heat exchanger does not exchange heat through the target end, and the step comprises:

and controlling the third control valve to be opened and controlling the fourth control valve to be closed.

when the operation mode of the air conditioner is the refrigeration mode, if the ambient temperature is greater than a first preset ambient temperature, determining that the ambient temperature reaches the preset condition;

when the operation mode of the air conditioner is the heating mode, if the ambient temperature is lower than a second preset ambient temperature, determining that the ambient temperature reaches the preset condition;

wherein the second preset ambient temperature is less than the first preset ambient temperature.

Optionally, a heat release end of the semiconductor refrigeration module is in heat exchange connection with the compressor, and the step of controlling the air conditioner to operate in a refrigeration mode or a heating mode includes:

and controlling the compressor to start and controlling the semiconductor refrigeration module to start, wherein the heat release end heats a refrigerant in the compressor when the semiconductor refrigeration module is started.

In addition, in order to realize above-mentioned purpose, this application still provides an air conditioner, the air conditioner includes refrigerant circulation circuit, refrigerant circulation circuit includes compressor, outdoor heat exchanger, throttling arrangement and the indoor heat exchanger that communicates in proper order, the air conditioner still includes:

the flow direction adjusting module is connected with the refrigerant circulating loop;

the semiconductor refrigeration module is connected with the flow direction regulation module;

the control device, the compressor, throttling arrangement, flow direction adjusting module and semiconductor refrigeration module all with control device connects, control device includes: the control method comprises the steps of realizing the control method of the air conditioner according to any one of the above items when the control program of the air conditioner is executed by the processor.

Optionally, the flow direction adjusting module includes a first branch, a first control valve, and a second control valve, a heat absorption end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, and the first branch is connected in parallel with the first control valve;

and/or the flow direction adjusting module comprises a second branch, a third control valve and a fourth control valve, the heat release end of the semiconductor refrigeration module is in heat exchange connection with the second branch, the third control valve is arranged between the indoor heat exchanger and the compressor, the fourth control valve is arranged on the second branch, and the second branch is connected with the third control valve in parallel.

Optionally, the heat release end of the semiconductor refrigeration module is in heat exchange connection with the compressor.

Further, in order to achieve the above object, the present application also proposes a computer-readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of the air conditioner as recited in any one of the above.

The invention provides a control method of an air conditioner, the air conditioner is provided with a flow direction adjusting module connected with a refrigerant circulation loop and a semiconductor refrigerating module connected with the flow direction adjusting module, the method controls the flow direction adjusting module to operate when the ambient temperature meets the condition required by the heat exchanger needing to be improved in the current operation mode during the refrigerating operation or the heating operation of the air conditioner, so that the refrigerant circularly flowing by the air conditioner firstly exchanges heat through the semiconductor refrigerating module before entering the indoor heat exchanger, thereby preheating the refrigerant entering the indoor heat exchanger in the heating operation under the severe environment or precooling the refrigerant entering the indoor heat exchanger in the refrigeration mode, effectively increasing the heat exchange quantity of the refrigerant in the indoor heat exchanger without regulating and controlling the operation of the compressor, being beneficial to the stable operation of the compressor, therefore, the heat exchange capacity of the air conditioner in a severe environment is improved, and the operation stability of the compressor is improved.

Drawings

FIG. 1 is a schematic diagram of a system configuration of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a semiconductor refrigeration module in the air conditioner according to the present invention;

FIG. 3 is a schematic diagram of the hardware involved in the operation of an embodiment of the air conditioner of the present invention;

FIG. 4 is a flow chart illustrating an embodiment of a method for controlling an air conditioner according to the present invention;

FIG. 5 is a flow chart illustrating another embodiment of a method for controlling an air conditioner according to the present invention;

FIG. 6 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;

fig. 7 is a flowchart illustrating a control method of an air conditioner according to still another embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main solution of the embodiment of the invention is as follows: the control method of the air conditioner comprises the following steps of based on the air conditioner comprising a refrigerant circulation loop, a flow direction adjusting module connected with the refrigerant circulation loop and a semiconductor refrigerating module connected with the flow direction adjusting module: acquiring the ambient temperature of the environment where the air conditioner is located; when the ambient temperature reaches a preset condition, controlling the air conditioner to operate in a refrigeration mode or a heating mode, and controlling the flow direction adjusting module to operate so that a refrigerant which circularly flows in the air conditioner exchanges heat with the indoor heat exchanger through a target end in sequence; the target end is one end of the heat release end and the heat absorption end of the semiconductor refrigeration module, which is matched with the heat exchange state corresponding to the current operation mode of the air conditioner, and the preset condition is a condition which is required to be achieved by the environment temperature when the heat exchange quantity needs to be increased in the current operation mode of the air conditioner.

In the prior art, the refrigeration capacity or the heating capacity of the air conditioner in a severe environment is improved mostly by using modes of improving the frequency of the compressor or increasing the enthalpy of air supply of the compressor, however, the operation load of the compressor is easily increased by using the modes, so that the compressor cannot stably operate, and the service life of the compressor is influenced.

The invention provides the solution, and aims to improve the heat exchange capacity of the air conditioner and improve the operation stability of the compressor.

The embodiment of the application provides an air conditioner, and this air conditioner can be for having the air conditioner of refrigeration function alone, also can be for having the air conditioner of heating function alone, still can be for refrigeration function and the changeable air conditioner of heating function.

In an embodiment of the present invention, referring to fig. 1 to 3, the air conditioner includes a control device 1, a refrigerant circulation circuit, a flow direction adjusting module, and a semiconductor refrigeration module 2. The refrigerant circulation circuit includes a compressor 31, an outdoor heat exchanger 33, a throttle device 34, and an indoor heat exchanger 35, which are sequentially connected to each other. The compressor 31, the throttling device 34, the flow direction adjusting module and the semiconductor refrigeration module 2 are all connected with the control device 1.

When the air conditioner operates in a cooling mode, refrigerant flowing out of the compressor 31 sequentially passes through the outdoor heat exchanger 33, the throttling device 34 and the indoor heat exchanger 35 and then flows back to the compressor 31; when the air conditioner operates in the heating mode, the refrigerant flowing out of the compressor 31 sequentially passes through the indoor heat exchanger 35, the throttle device 34, and the outdoor heat exchanger 33, and then flows back to the compressor 31.

Further, referring to fig. 1, the refrigerant circulation circuit further includes a four-way valve 32, and the four-way valve 32 is connected to the control device 1. The four-way valve 32 has a first port, a second port, a third port and a fourth port, an exhaust port of the compressor 31 is communicated with the first port, a return port of the compressor 31 is communicated with the second port, the third port is communicated with the indoor heat exchanger 35, and the fourth port is communicated with the outdoor heat exchanger 33. The four-way valve 32 has a first valve position and a second valve position, when the four-way valve 32 is in the first valve position, the first interface is communicated with the fourth interface, the second interface is communicated with the third interface, and the air conditioner operates in a refrigeration mode; when the four-way valve 32 is in the second valve position, the first port is communicated with the third port, the second port is communicated with the fourth port, and the air conditioner operates in a heating mode.

The semiconductor refrigeration module 2 is electrically connected to the control device 1. The control device 1 can input direct current to the semiconductor refrigeration module 2. Specifically, referring to fig. 2, the semiconductor refrigeration module 2 includes a P-type semiconductor 21, an N-type semiconductor 22, and a conductor, which is typically copper, aluminum, or other metal conductor. The P-type semiconductor 21 and the N-type semiconductor 22 are connected into a thermocouple by adopting conductors, and the temperature difference and heat transfer are generated at a joint after the P-type semiconductor 21 and the N-type semiconductor 22 are connected with a direct current power supply, so that the conductors at two ends of the semiconductors form the temperature difference, the conductor at the lower temperature end can be a heat absorption end 23, and the conductor at the higher temperature end can be a heat release end 24. A plurality of pairs of semiconductor thermocouples are connected in series in a circuit mode, and the heat transfer of the semiconductor thermocouples keeps a parallel structure to form a refrigeration thermopile which can be used as a semiconductor refrigeration module 2.

Referring to fig. 1, the refrigerant circulation circuit and the semiconductor refrigeration module 2 are both connected to the flow direction adjustment module. The flow direction adjusting module is used for adjusting the flow direction of a refrigerant so as to switch the refrigerant of the air conditioner between a first state and a second state, the first state is that the refrigerant flows through the semiconductor refrigeration module 2 and the indoor heat exchanger 35 in sequence in the refrigerant circulation process for heat exchange, and the second state is that the refrigerant enters the space between the indoor heat exchanger 35 in the refrigerant circulation process and does not flow through the semiconductor refrigeration module 2 for heat exchange.

In an implementation manner of this embodiment, the air conditioner is an air conditioner with a cooling function, the flow direction adjusting module includes a first branch 41, a first control valve 42, and a second control valve 43, the heat absorption end 23 of the semiconductor cooling module 2 is in heat exchange connection with the first branch 41, the first control valve 42 is disposed between the indoor heat exchanger 35 and the throttling device 34, the second control valve 43 is disposed in the first branch 41, and the first branch 41 is connected in parallel with the first control valve 42. The first control valve 42 and the second control valve 43 are both connected to the control device 1, and the control device 1 can be used for controlling the opening or closing of the first control valve 42 and the second control valve 43. Specifically, a pipeline between the throttling device 34 and the indoor heat exchanger 35 is defined as a first pipeline, the refrigerant is allowed to flow in the first pipeline when the first control valve 42 is opened, and the refrigerant is not allowed to flow in the first pipeline when the first control valve 42 is closed; the refrigerant is allowed to flow through the first branch line 41 when the second control valve 43 is opened, and the refrigerant is not allowed to flow through the first branch line 41 when the second control valve 43 is closed.

In another implementation manner of this embodiment, the air conditioner is an air conditioner with a heating function, the flow direction adjusting module includes a second branch 44, a third control valve 45, and a fourth control valve 46, the heat releasing end 24 of the semiconductor refrigeration module 2 is in heat exchange connection with the second branch 44, the third control valve 45 is disposed between the indoor heat exchanger 35 and the compressor 31, the fourth control valve 46 is disposed in the second branch 44, and the second branch 44 is connected in parallel with the third control valve 45. Specifically, a pipeline between the exhaust port of the compressor 31 and the indoor heat exchanger 35 is defined as a second pipeline, the refrigerant is allowed to flow in the second pipeline when the third control valve 45 is opened, and the refrigerant is not allowed to flow in the second pipeline when the third control valve 45 is closed; the refrigerant is allowed to flow in the second branch passage 44 when the fourth control valve 46 is opened, and the refrigerant is not allowed to flow in the second branch passage 44 when the fourth control valve 46 is closed.

In still another implementation manner of this embodiment, referring to fig. 1, the air conditioner is an air conditioner with a function of switching between a cooling function and a heating function, the flow direction adjusting module includes a first branch 41, a first control valve 42, a second control valve 43, a second branch 44, a third control valve 45, and a fourth control valve 46, and the components in the flow direction adjusting module are connected as mentioned above.

In the present embodiment, the first control valve 42, the second control valve 43, the third control valve 45, and the fourth control valve 46 are all solenoid valves. In other embodiments, the first control valve 42, the second control valve 43, the third control valve 45 and/or the fourth control valve 46 may also be a flow valve with an adjustable opening degree, such as an electronic expansion valve.

Further, in the present embodiment, the number of the second control valves 43 is more than one, and more than one second control valves 43 are respectively disposed at both ends of the first branch line 41. The number of the fourth control valves 46 is more than one, and more than one fourth control valves 46 are respectively arranged at two ends of the second branch 44.

In other embodiments, the flow direction adjusting module may further include a first branch 41 and a first three-way valve (not shown), the first branch 41 is connected to the heat absorbing end 23 of the semiconductor refrigeration module 2 in a heat exchange manner, and the pipeline between the throttling device 34 and the indoor heat exchanger 35 is defined as a first pipeline, the first branch 41, the first pipeline and a refrigerant outlet of the throttling device 34 are both communicated with a first three-way valve (not shown), the first three-way valve (not shown) can be used for switching the flow direction of the refrigerant flowing out of the throttling device 34 between the first branch line 41 and the first pipeline, the first three-way valve (not shown) is provided with a third valve position and a fourth valve position, the refrigerant flowing out of the throttling device 34 enters the indoor heat exchanger 35 through the first pipeline when the first three-way valve (not shown) is at the third valve position, and the refrigerant flowing out of the throttling device 34 enters the indoor heat exchanger 35 through the first branch line 41 when the first three-way valve (not shown) is at the fourth valve position. And/or, the flow direction adjusting module may further include a second branch 44 and a second three-way valve (not shown), the second branch 44 is in heat exchange connection with the heat releasing end 24 of the semiconductor refrigeration module 2, and a pipeline between the exhaust port of the compressor 31 and the indoor heat exchanger 35 is defined as a second pipeline, the second branch 44, the second pipeline and the exhaust port of the compressor 31 are both communicated with a second three-way valve (not shown), the second three-way valve (not shown) can be used for switching the flow direction of the refrigerant flowing out of the throttling device 34 between the second branch 44 and the second pipeline, the second three-way valve (not shown) has a fifth valve position and a sixth valve position, the refrigerant flowing out of the compressor 31 when the second three-way valve (not shown) is in the fifth valve position enters the indoor heat exchanger 35 through the second pipeline, and the refrigerant flowing out of the throttling device 34 when the second three-way valve (not shown) is in the sixth valve position enters the indoor heat exchanger 35 through the second branch 44.

Further, the heat release end 24 of the semiconductor refrigeration module 2 is in heat exchange connection with the compressor 31. Specifically, the heat radiating end 24 of the semiconductor refrigeration module 2 is sleeved on the outer wall of the compressor 31. The heat releasing end 24 releases heat to heat the refrigerant in the compressor 31 when the semiconductor refrigeration module 2 is turned on.

Further, in the embodiment of the present invention, the air conditioner may further include a temperature detection module 5, and the temperature detection module 5 is connected to the control device 1. The temperature detection module 5 is used for detecting the ambient temperature of the environment where the air conditioner is located. The temperature detection module 5 may be disposed in an indoor environment and/or an outdoor environment corresponding to the air conditioner to detect an indoor environment temperature and/or an outdoor environment temperature.

Further, in an embodiment of the present invention, referring to fig. 3, a control device 1 of an air conditioner includes: a processor 1001 (e.g., a CPU), a memory 1002, a timer 1003, and the like. The components in the control device 1 are connected by a communication bus. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the device configuration shown in fig. 3 is not intended to be limiting of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 3, a control program of the air conditioner may be included in the memory 1002, which is a kind of computer-readable storage medium. In the apparatus shown in fig. 3, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1002 and perform operations of the relevant steps of the control method of the air conditioner in the following embodiments.

The embodiment of the invention also provides a control method of the air conditioner, which is applied to the air conditioner.

Referring to fig. 4, an embodiment of a control method of an air conditioner according to the present application is provided. In this embodiment, the method for controlling an air conditioner includes:

step S10, acquiring the ambient temperature of the environment where the air conditioner is located;

when the air conditioner operates in a refrigeration mode, the compressor is started, the throttling device is started, refrigerant discharged by the compressor flows back to the compressor after sequentially passing through the compressor, the outdoor heat exchanger, the throttling device and the indoor heat exchanger, the indoor heat exchanger absorbs heat in an evaporation state, and the temperature of air in an indoor environment is reduced after heat exchange with the indoor heat exchanger.

When the air conditioner runs in a heating mode, the compressor is started, the throttling device is started, refrigerant discharged by the compressor flows back to the compressor after sequentially passing through the indoor heat exchanger, the throttling device and the outdoor heat exchanger, the indoor heat exchanger is in a condensation state to release heat, and the temperature of air in an indoor environment is increased after heat exchange with the indoor heat exchanger.

In the embodiment, the air conditioner is an air conditioner with switchable cooling mode and heating mode, the air conditioner comprises a four-way valve, and the four-way valve runs at a first valve position when the air conditioner runs in the cooling mode; and when the air conditioner operates in a heating mode, the four-way valve operates at a second valve position.

In the process of starting a cooling mode or a heating mode of the air conditioner, the ambient temperature of the data currently detected by the temperature detection module can be acquired. In the present embodiment, the ambient temperature includes an outdoor ambient temperature. In other embodiments, the ambient temperature may also include an indoor ambient temperature or both an outdoor ambient temperature and an indoor ambient temperature.

Step S20, when the environment temperature reaches a preset condition, controlling the air conditioner to operate in a cooling mode or a heating mode, and controlling the flow direction adjusting module to operate so that the refrigerant circulating in the air conditioner exchanges heat with the indoor heat exchanger through a target end in sequence;

The preset conditions can comprise a preset target value interval which is required to be reached by the temperature of the outdoor environment and/or the indoor environment when the heat exchange quantity of the air conditioner needs to be improved in the current operation mode; alternatively, the preset condition may include a preset quantity relationship (such as a magnitude relationship, a ratio relationship, or a difference relationship) that needs to be satisfied between the outdoor environment temperature and/or the indoor environment temperature and a preset value or an environment characteristic value detected by the indoor environment when the heat exchange amount of the air conditioner needs to be increased in the current operation mode.

When the ambient temperature reaches a preset condition, indicating that the heat exchange quantity of the indoor heat exchanger of the air conditioner needs to be improved in the current operation mode; when the ambient temperature does not reach the preset condition, the heat exchange quantity of the indoor heat exchanger of the air conditioner is not required to be increased in the current operation mode.

In this embodiment, when the ambient temperature satisfies the preset condition, the semiconductor refrigeration module is in an on state, and the control device supplies a direct current to the semiconductor refrigeration module to enable the target end in heat exchange connection with the refrigerant input pipeline of the indoor heat exchanger to be in a heat exchange state matched with the current mode.

In this embodiment, the heat exchange state of the target end is the same as the heat exchange state corresponding to the current operation mode of the air conditioner. Specifically, when the air conditioner operates in a refrigeration mode, the target end is a heat absorption end; when the air conditioner runs in a heating mode, the target end is a heat release end. In other embodiments, the heat exchange state of the target end and the heat exchange state corresponding to the current operation mode of the air conditioner may be opposite. For example, when the air conditioner operates in a cooling mode, the target end is a heat release end; when the air conditioner runs in a heating mode, the target end is a heat absorption end.

The operation parameters of the flow direction adjusting module are parameters for adjusting the flow direction in the refrigerant circulation process. The flow direction adjustment parameter includes a first operating parameter or a second operating parameter. The first operation parameter is used for enabling the refrigerant to sequentially flow through the heat absorption end of the semiconductor refrigeration module and the indoor heat exchanger in the circulating flowing process; the second operation parameter is used for enabling the refrigerant to sequentially flow through the heat release end of the semiconductor refrigeration module and the indoor heat exchanger in the circulating flowing process.

In the present embodiment, the air conditioner is an air conditioner in which a cooling function and a heating function are switchable. The operation parameters of the flow direction adjusting module can be determined according to the current operation mode of the air conditioner. Different operating modes correspond to different operating parameters. Specifically, when the air conditioner operates in a cooling mode at present, the flow direction adjusting module is controlled to operate according to a first operation parameter; and when the air conditioner operates in the heating mode currently, controlling the flow direction adjusting module to operate at a second operation parameter.

When the flow direction adjusting module comprises electromagnetic valves arranged on different pipelines, the first operation parameter and the second operation parameter can be opening and closing control parameters corresponding to each electromagnetic valve. The flow direction adjusting module comprises multi-way valves connected with different pipelines, and the first operating parameter and the second operating parameter can be valve position control parameters of the multi-way valves. It should be noted that the different pipelines herein are all communicated with the refrigerant inlet of the indoor heat exchanger.

The embodiment of the invention provides a control method of an air conditioner, the air conditioner is provided with a flow direction adjusting module connected with a refrigerant circulating loop and a semiconductor refrigerating module connected with the flow direction adjusting module, the method controls the flow direction adjusting module to operate when the ambient temperature meets the condition required by the heat exchanger needing to be improved in the current operation mode during the refrigerating operation or the heating operation of the air conditioner, so that the refrigerant circularly flowing by the air conditioner firstly exchanges heat through the semiconductor refrigerating module before entering the indoor heat exchanger, thereby preheating the refrigerant entering the indoor heat exchanger in the heating operation under the severe environment or precooling the refrigerant entering the indoor heat exchanger in the refrigeration mode, effectively increasing the heat exchange quantity of the refrigerant in the indoor heat exchanger without regulating and controlling the operation of the compressor, being beneficial to the stable operation of the compressor, therefore, the heat exchange capacity of the air conditioner in a severe environment is improved, and the operation stability of the compressor is improved.

Further, based on the above embodiments, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, the flow direction adjusting module includes a first branch, a first control valve, and a second control valve, the heat absorption end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected in parallel with the first control valve, with reference to fig. 5, the step S20 includes:

and step S21, when the ambient temperature reaches a preset condition, if the air conditioner is currently in the cooling mode, controlling the first control valve to close and controlling the second control valve to open.

In this embodiment, the number of the second control valves is more than one, and when the second control valves are controlled to open, the second control valves can be controlled to open simultaneously, or the second control valves can be controlled to open sequentially. When more than one second control valve is opened successively, the second control valve arranged at the refrigerant inlet of the first branch is controlled to be opened first, the second control valve arranged at the refrigerant outlet of the first branch is controlled to be opened after a first preset time interval, and therefore the heat exchange effect of the refrigerant in the first branch and the semiconductor refrigeration module is improved, and the refrigerant absorbs more cold.

The air conditioner closes the first control valve and opens the second control valve in the refrigeration process, the refrigerant flowing out of the throttling device does not pass through a pipeline where the first control valve is located, the refrigerant completely flows into the first branch circuit, heat exchange is carried out between the refrigerant and the heat absorption end of the semiconductor refrigeration module in the first branch circuit, the heat of the refrigerant in the first branch circuit is absorbed by the heat absorption end, the temperature of the refrigerant in the first branch circuit is reduced, and the refrigerant with the reduced temperature flows into the indoor heat exchanger for further heat exchange.

In this embodiment, the refrigerating capacity of the air conditioner needs to be increased in the refrigerating operation mode, the flow direction of the refrigerant is controlled through the opening and closing cooperation of the first control valve and the second control valve, the refrigerant is precooled by the heat absorption end of the semiconductor refrigerating module and then enters the indoor heat exchanger for further evaporation, the evaporation temperature of the indoor heat exchanger is effectively reduced, and the refrigerating capacity of the air conditioner can be increased without regulating and controlling the compressor.

In other embodiments, in the refrigeration process of the air conditioner, the first control valve and the second control valve may also be opened simultaneously, and the opening degree of the first control valve is smaller than the opening degree of the second control valve, so that a part of the refrigerant flowing to the indoor heat exchanger of the throttling device may be precooled by the semiconductor refrigeration module to increase the refrigeration capacity of the air conditioner. Wherein the opening degrees of the first control valve and the second control valve may be determined according to the ambient temperature.

Further, in this embodiment, the flow direction adjusting module includes a second branch, a third control valve and a fourth control valve, the heat releasing end of the semiconductor refrigeration module is connected to the second branch in a heat exchange manner, the third control valve is disposed between the indoor heat exchanger and the compressor, the fourth control valve is disposed in the second branch, the second branch is connected to the third control valve in parallel, and the flow direction adjusting module is controlled to operate so that the refrigerant flowing in the air conditioner in a circulating manner sequentially passes through the target end and the indoor heat exchanger in a heat exchange manner, where the step includes: when the air conditioner is in the cooling mode at present, controlling the third control valve to be opened, controlling the fourth control valve to be closed, controlling the first control valve to be closed and controlling the second control valve to be opened.

In this embodiment, the number of the fourth control valves is more than one, and when the fourth control valves are controlled to be closed, the fourth control valves can be controlled to be closed simultaneously, or the fourth control valves can be controlled to be closed successively.

In the refrigeration operation process of the air conditioner, when the third control valve is opened and the fourth control valve is closed, the refrigerant flowing out of the indoor heat exchanger cannot flow through the heat release end of the semiconductor refrigeration module, so that the phenomenon that the operation stability of the compressor is affected by overhigh return air temperature of the air conditioner, and even the overall refrigeration output capacity of the system is reduced is avoided.

Further, based on any of the above embodiments, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, the flow direction adjusting module includes a second branch, a third control valve and a fourth control valve, the heat releasing end of the semiconductor refrigeration module is in heat exchange connection with the second branch, the third control valve is disposed between the indoor heat exchanger and the compressor, the fourth control valve is disposed in the second branch, the second branch is connected in parallel with the third control valve, with reference to fig. 6, the step S20 includes:

and step S22, when the ambient temperature reaches a preset condition, if the air conditioner is currently in the heating mode, controlling the third control valve to be closed and controlling the fourth control valve to be opened.

In this embodiment, the number of the fourth control valves is more than one, and when the fourth control valves are controlled to open, the more than one fourth control valves can be controlled to open simultaneously, or the more than one fourth control valves can be controlled to open sequentially. When more than one fourth control valve is opened successively, the fourth control valve arranged at the refrigerant inlet of the second branch is controlled to be opened first, the interval of the second preset time is controlled to be long, and the fourth control valve arranged at the refrigerant outlet of the second branch is controlled to be opened later, so that the heat exchange effect of the refrigerant in the second branch and the semiconductor refrigeration module is improved, and the refrigerant absorbs more heat.

And when the air conditioner is in a heating process, the third control valve is closed and the fourth control valve is opened, the refrigerant flowing out of the compressor does not pass through a pipeline where the third control valve is located, but flows into the second branch, the refrigerant exchanges heat with the heat release end of the semiconductor refrigeration module in the second branch, the heat release end releases heat into the refrigerant in the second branch, the temperature of the refrigerant in the second branch is increased, and the refrigerant with the increased temperature flows into the indoor heat exchanger for further heat exchange.

In this embodiment, can realize that the operation of air conditioner heating needs to improve the heating capacity through above-mentioned mode, the flow direction of the switching cooperation control refrigerant through third control valve and fourth control valve makes the refrigerant advance the heat release end through semiconductor refrigeration module and preheats the back and then gets into further condensation in the indoor heat exchanger to effectively improve the condensation temperature of indoor heat exchanger, need not to adjust and control the heating capacity that alright improved the air conditioner to the compressor.

In other embodiments, in the heating process of the air conditioner, the third control valve and the fourth control valve may also be opened simultaneously, and the opening degree of the third control valve is smaller than the opening degree of the fourth control valve, so that a part of the refrigerant flowing to the indoor heat exchanger from the compressor can be precooled by the semiconductor refrigeration module to improve the heating capacity of the air conditioner. Wherein the opening degrees of the third control valve and the fourth control valve may be determined according to the ambient temperature.

Further, in this embodiment, the flow direction adjusting module includes a first branch, a first control valve, and a second control valve, the heat absorption end of the semiconductor refrigeration module is connected to the first branch in a heat exchange manner, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected to the first control valve in parallel, and the flow direction adjusting module is controlled to operate, so that the step of exchanging heat between the target end and the indoor heat exchanger of the refrigerant flowing in the air conditioner in a circulating manner includes: and when the target operation mode is the heating mode, controlling the first control valve to be opened, controlling the second control valve to be closed, controlling the third control valve to be closed, and controlling the fourth control valve to be opened.

In this embodiment, the number of the second control valves is more than one, and when the second control valves are controlled to be closed, the more than one second control valves can be controlled to be closed simultaneously, or the more than one second control valves can be controlled to be closed sequentially.

In the heating operation process of the air conditioner, when the third control valve is opened and the fourth control valve is closed, the refrigerant flowing out of the indoor heat exchanger cannot flow through the heat absorption end of the semiconductor heating module, so that the phenomenon that the operation stability of the compressor is affected by too low return air temperature of the air conditioner, and even the overall heating output capacity of the system is reduced is avoided.

Further, based on any of the above embodiments, a further embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 7, after step S10, the method further includes:

and step S30, when the ambient temperature does not reach the preset condition, controlling the flow direction adjusting module to operate so that the refrigerant entering the indoor heat exchanger does not exchange heat through the target end.

Specifically, the flow direction adjusting module further comprises a third operating parameter and/or a fourth operating parameter. The third operation parameter is used for enabling the refrigerant to enter the indoor heat exchanger in a state of not flowing through the heat absorption end of the semiconductor refrigeration module in the circulating flowing process; the fourth operation parameter is used for enabling the refrigerant to enter the indoor heat exchanger in a state of not flowing through the heat release end of the semiconductor refrigeration module in the circulating flowing process.

In this embodiment, when the ambient temperature does not reach the preset condition, the flow direction adjusting module is in a closed state; in other embodiments, the flow direction adjustment module may be in an on state.

In the present embodiment, the air conditioner is an air conditioner in which a cooling function and a heating function are switchable. When the ambient temperature does not reach the preset condition, controlling the flow direction adjusting module to operate at a third operation parameter when the air conditioner operates in the current refrigeration mode; and when the air conditioner operates in the heating mode currently, controlling the flow direction adjusting module to operate according to the fourth operation parameter. Furthermore, in order to further avoid the opening of the semiconductor refrigeration module to influence the refrigeration efficiency or the heating efficiency of the air conditioner, no matter the air conditioner performs refrigeration operation or performs heating operation, when the environmental temperature does not reach the preset condition, the control flow direction adjusting module performs operation according to a third operation parameter and a fourth operation parameter.

In this embodiment, when ambient temperature did not reach the preset condition, it need not to improve to show the heat transfer volume of air conditioner, does not adopt the semiconductor refrigeration module to preheat or the precooling to the refrigerant this moment, when guaranteeing that the air conditioner heat transfer volume can satisfy the indoor comfort demand under current operating mode, reduces the operating load increase that the semiconductor refrigeration module caused the compressor to the regulating action of refrigerant to improve compressor life when guaranteeing that the air conditioner heat transfer volume satisfies the demand.

Further, in this embodiment, the flow direction adjusting module includes a first branch, a first control valve and a second control valve, the heat absorption end of the semiconductor refrigeration module is connected to the first branch in a heat exchange manner, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed on the first branch, the first branch is connected to the first control valve in parallel, and/or the flow direction adjusting module includes a second branch, a third control valve and a fourth control valve, the heat release end of the semiconductor refrigeration module is connected to the second branch in a heat exchange manner, the third control valve is disposed between the indoor heat exchanger and the compressor, the fourth control valve is disposed on the second branch, and the second branch is connected to the third control valve in parallel.

In an implementation manner of this embodiment, the flow direction adjusting module includes the second control valve, the first branch, the second branch, the fourth control valve, and the third control valve at the same time, and the step of controlling the flow direction adjusting module to operate so that the refrigerant entering the indoor heat exchanger does not exchange heat with the semiconductor refrigeration module includes: and controlling the first control valve to be opened, controlling the second control valve to be closed, controlling the third control valve to be opened, and controlling the fourth control valve to be closed.

In another implementation manner of this embodiment, if the flow direction adjusting module includes the second control valve, the first branch, and does not include the second branch, the fourth control valve, and the third control valve, the step of controlling the flow direction adjusting module to operate so that the refrigerant entering the indoor heat exchanger does not exchange heat with the semiconductor refrigeration module includes: and controlling the first control valve to be opened and controlling the second control valve to be closed.

In another implementation manner of this embodiment, if the flow direction adjusting module includes the second branch circuit, the fourth control valve, and the third control valve, and does not include the second control valve, the first control valve, and the first branch circuit, the step of controlling the flow direction adjusting module to operate so that the refrigerant entering the indoor heat exchanger does not exchange heat with the semiconductor refrigeration module includes: and controlling the third control valve to be opened and controlling the fourth control valve to be closed.

Further, according to any of the above embodiments, after step S10, the method further includes: when the air conditioner is in the refrigeration mode, if the ambient temperature is higher than a first preset ambient temperature, determining that the ambient temperature reaches the preset condition, and if the ambient temperature is lower than or equal to the first preset ambient temperature, determining that the ambient temperature does not reach the preset condition; when the air conditioner is in the heating mode, if the environment temperature is lower than a second preset environment temperature, determining that the environment temperature reaches the preset condition, and if the environment temperature is higher than or equal to the second preset environment temperature, determining that the environment temperature does not reach the preset condition; wherein the second preset ambient temperature is less than the first preset ambient temperature.

The first preset environment temperature is a critical temperature used for distinguishing whether the refrigerating capacity of the air conditioner is enough or not in the refrigerating mode, and the environment temperature is higher than the first preset environment temperature and indicates that the refrigerating capacity of the air conditioner is insufficient; the ambient temperature is less than or equal to the first preset ambient temperature, which indicates that the refrigerating capacity of the air conditioner is sufficient.

The second preset environment temperature is a critical temperature used for distinguishing whether the heating quantity of the air conditioner is enough or not in the heating mode, and the environment temperature is lower than the second preset environment temperature and indicates that the heating quantity of the air conditioner is insufficient; the ambient temperature is greater than or equal to the second preset ambient temperature, which indicates that the heating capacity of the air conditioner is sufficient.

In this embodiment, through above-mentioned mode, can guarantee that the air conditioner heats under the extreme low temperature environment or when refrigerating under the extreme high temperature environment, when the heat transfer volume of air conditioner is not enough, through the supplementary of semiconductor refrigeration module, realize the effective improvement of air conditioner heat transfer volume.

Further, based on any one of the above embodiments, in this embodiment, a heat releasing end of the semiconductor refrigeration module is in heat exchange connection with the compressor, and the step of controlling the air conditioner to operate in a refrigeration mode or a heating mode includes: and controlling the compressor to start and controlling the semiconductor refrigeration module to start, wherein the heat release end heats a refrigerant in the compressor when the semiconductor refrigeration module is started.

Specifically, the air conditioner starts the compressor when starting the refrigeration mode or the heating mode, and the semiconductor refrigeration module is started by introducing direct current into the semiconductor refrigeration module when the compressor is started. When the semiconductor refrigeration module is started, the heat release end of the semiconductor refrigeration module is in a heat release state to heat the refrigerant in the compressor, so that the temperature of the refrigerant is quickly increased.

Further, in this embodiment, when the operation mode of the air conditioner is the heating mode and the ambient temperature is lower than a second preset ambient temperature, the compressor is controlled to start and the semiconductor refrigeration module is controlled to start, and the heat release end heats the refrigerant in the compressor when the semiconductor refrigeration module is started.

In this embodiment, the heat release end of the semiconductor refrigeration module is used for assisting in heating the refrigerant in the compressor when the compressor is started, so that the frequency rise speed of the compressor during starting is improved, and particularly, the compressor can be ensured to be quickly increased to the frequency operation meeting the output capacity requirement under the low-temperature severe environment, so that the refrigeration efficiency or the heating efficiency of the air conditioner after starting is improved.

Further, in other embodiments, when the ambient temperature does not reach the preset condition, the compressor may also be controlled to operate at a target frequency, and the flow direction adjusting module is controlled to operate, so that a refrigerant circulating in the air conditioner sequentially passes through a target end and the indoor heat exchanger to exchange heat, where the target frequency is less than a frequency at which the compressor needs to operate when the air conditioner reaches a target energy efficiency.

The target frequency can be a preset fixed frequency or an actual frequency determined according to the energy efficiency required by the current operation condition of the air conditioner.

It should be noted that the frequency of the compressor required to operate when the target energy efficiency is achieved is determined based on the target energy efficiency when the air conditioner is in the preset state, and the preset state is that the refrigerant which circularly flows when the air conditioner operates does not pass through the semiconductor refrigeration module before entering the indoor heat exchanger.

When the compressor is currently operating at the target frequency, the actual energy efficiency of the air conditioner reaches the target energy efficiency. When the refrigerant sequentially passes through the target end and the indoor heat exchanger for heat exchange, the air conditioner operates at the frequency required by the compressor to operate when the target energy efficiency is achieved, and the actual energy efficiency of the air conditioner is larger than the target energy efficiency.

In this embodiment, when the semiconductor refrigeration module is used to preheat or precool the refrigerant entering the indoor heat exchanger, the compressor operates at a lower frequency when the target energy efficiency is achieved, and the heat exchange amount of the indoor heat exchanger can be increased due to the heat exchange effect of the semiconductor refrigeration module, so that the air conditioner can operate at a lower compressor frequency and can achieve the target energy efficiency, thereby effectively reducing the energy consumption of the compressor in operation.

Further, in this embodiment, the process of determining the target frequency includes: acquiring a current first temperature of an environment where the air conditioner is located; determining the first temperature and a set temperature of the air conditioner to determine a reference frequency; and reducing the reference frequency according to the frequency adjustment value to obtain the target frequency.

The first temperature is obtained by acquiring data currently detected by the temperature detection module. The set temperature is specifically a target temperature which is set by a user and is required to be reached by the indoor environment when the air conditioner operates. Different first temperatures and different set temperatures. The preset correspondence between the first temperature, the set temperature, and the reference frequency may be determined in advance when the target energy efficiency is achieved while the air conditioner is in the preset state, and the preset correspondence may be a calculation relationship, a mapping relationship, or the like. The reference frequency corresponding to the current first temperature and the set temperature can be determined based on the preset corresponding relation. In particular, the first temperature may include an indoor ambient temperature and/or an outdoor ambient temperature. And determining the temperature difference value between the indoor environment temperature and/or the outdoor environment temperature and the set temperature, and determining the reference frequency based on the temperature difference value. The reference frequency is in positive correlation with the temperature difference value, and the larger the temperature difference value is, the larger the reference frequency can be.

The frequency adjustment value can be a preset fixed parameter or a value determined according to the current operating state parameter of the air conditioner. Specifically, the frequency adjustment value may include a frequency reduction amplitude or a frequency reduction ratio. When the frequency adjustment value is the frequency reduction amplitude, the result obtained by subtracting the frequency reduction amplitude from the reference frequency can be used as the target frequency; when the frequency adjustment value is the frequency reduction ratio, the result obtained by multiplying the reference frequency by the frequency reduction ratio is used as the target frequency.

In this embodiment, by the above manner, the frequency required when the air conditioner reaches the target energy efficiency is determined based on the actual operating condition of the air conditioner, and the operating frequency of the compressor is obtained after the determined frequency is reduced, so that the accuracy of the obtained operating frequency of the compressor is improved, and the air conditioner can accurately reach the target energy efficiency under the current operating condition when the compressor operates at the target frequency.

Further, in this embodiment, after the step S20, before the reference frequency is decreased according to the frequency adjustment value and the target frequency is obtained, the second temperature of the target end and/or the third temperature of the indoor heat exchanger may be obtained, and the frequency adjustment value may be determined according to the second temperature and/or the third temperature. In this embodiment, the frequency adjustment value is determined according to the third temperature and the second temperature. In other embodiments, the frequency adjustment value may also be determined based on one of the third temperature and the second temperature.

Specifically, the different third temperatures and/or the second temperatures correspond to different frequency adjustment values. The correspondence between the third temperature and/or the second temperature and the frequency adjustment value may include a calculation relationship, a mapping relationship, or the like. And calculating or inquiring the mapping relation through the third temperature and/or the second temperature to obtain a corresponding frequency adjustment value. The corresponding relation between the third temperature and/or the second temperature and the frequency adjustment value can be preset to be more than one, and different corresponding relations can be associated with different rotating speed intervals of the indoor fan. The indoor fan is a fan corresponding to the indoor heat exchanger and used for driving the indoor environment to enter the air conditioner to exchange heat with the indoor heat exchanger. The current running rotating speed of the indoor fan is obtained, the rotating speed interval where the running rotating speed is located is determined to be a target interval, the corresponding relation associated with the target interval is used as a target relation, and the frequency adjusting value corresponding to the third temperature and/or the second temperature is determined based on the target relation.

In this embodiment, a temperature difference value between the third temperature and the second temperature is determined; and determining the frequency adjustment value according to the temperature difference value. Specifically, in the present embodiment, the temperature difference value is an absolute value of a difference between the second temperature and the third temperature. In other embodiments, the temperature difference value is a difference between the second temperature and the third temperature difference. Different temperature difference values correspond to different frequency adjustment values. The frequency adjustment value is in negative correlation with the temperature difference value, that is, the smaller the temperature difference value is, the larger the frequency adjustment value is, and the smaller the corresponding target frequency is; the larger the temperature difference value is, the smaller the frequency adjustment value can be, and the larger the corresponding target frequency can be.

In this embodiment, on the basis of preheating or precooling the refrigerant entering the indoor heat exchanger by using the semiconductor refrigeration module, the frequency adjustment value is determined by combining the temperature of the indoor heat exchanger and/or the temperature of the semiconductor refrigeration module, which is beneficial to improving the accuracy of the determined target frequency, and it is ensured that the reduced heat exchange amount after the reference frequency is reduced can be accurately matched with the actual heat exchange state of the indoor heat exchanger, especially, the frequency adjustment value is determined based on the temperature difference value between the second temperature and the third temperature, so that it is further ensured that the reduced heat exchange amount after the reference frequency is reduced can be accurately matched with the heat exchange amount improved by preheating or precooling the refrigerant by using the semiconductor refrigeration module, and thus it is ensured that the actual energy efficiency of the air conditioner can reach the target energy efficiency when the compressor operates at the target frequency.

Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a control program of an air conditioner is stored on the computer-readable storage medium, and when the control program of the air conditioner is executed by a processor, the relevant steps of any embodiment of the above control method of the air conditioner are implemented.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The control method of the air conditioner comprises a refrigerant circulation loop, wherein the refrigerant circulation loop comprises a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are sequentially communicated, the air conditioner is characterized by further comprising a flow direction adjusting module connected with the refrigerant circulation loop and a semiconductor refrigerating module connected with the flow direction adjusting module, and the control method of the air conditioner comprises the following steps:

when the ambient temperature reaches a preset condition, controlling the air conditioner to operate in a refrigerating mode or a heating mode, and controlling the flow direction adjusting module to operate so that a refrigerant which circularly flows in the air conditioner sequentially passes through a target end to exchange heat with the indoor heat exchanger;

2. The method as claimed in claim 1, wherein the flow direction adjusting module includes a first branch, a first control valve and a second control valve, the heat absorbing end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected in parallel with the first control valve, and the step of controlling the flow direction adjusting module to operate so that the refrigerant circulating in the air conditioner passes through the target end and the indoor heat exchanger in sequence to exchange heat comprises:

3. The method as claimed in claim 2, wherein the flow direction adjustment module includes a second branch, a third control valve and a fourth control valve, the heat releasing end of the semiconductor refrigeration module is in heat exchange connection with the second branch, the third control valve is disposed between the indoor heat exchanger and the compressor, the fourth control valve is disposed in the second branch, the second branch is connected in parallel with the third control valve, and the step of controlling the flow direction adjustment module to operate so that the refrigerant circulating in the air conditioner passes through the target end and the indoor heat exchanger in order to exchange heat comprises:

when the air conditioner is in the cooling mode, the third control valve is controlled to be opened, the fourth control valve is controlled to be closed, the first control valve is controlled to be closed, and the second control valve is controlled to be opened.

4. The method as claimed in claim 1, wherein the flow direction adjusting module includes a second branch, a third control valve and a fourth control valve, the heat releasing end of the semiconductor refrigeration module is connected with the second branch in a heat exchange manner, the third control valve is disposed between the indoor heat exchanger and the compressor, the fourth control valve is disposed in the second branch, the second branch is connected with the third control valve in parallel, and the step of controlling the flow direction adjusting module to operate so that the refrigerant circulating in the air conditioner passes through the target end and the indoor heat exchanger in a heat exchange manner sequentially comprises:

5. The method as claimed in claim 4, wherein the flow direction adjusting module includes a first branch, a first control valve and a second control valve, the heat absorbing end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected in parallel with the first control valve, and the step of controlling the flow direction adjusting module to operate so that the refrigerant circulating in the air conditioner passes through the target end and the indoor heat exchanger in sequence to exchange heat comprises:

6. The method of controlling an air conditioner according to claim 1, wherein the step of obtaining an ambient temperature of an environment in which the air conditioner is located, further comprises:

7. The method as claimed in claim 6, wherein the flow direction adjusting module includes a first branch, a first control valve and a second control valve, the heat absorbing end of the semiconductor refrigeration module is in heat exchange connection with the first branch, the first control valve is disposed between the indoor heat exchanger and the throttling device, the second control valve is disposed in the first branch, the first branch is connected in parallel with the first control valve, and the step of controlling the flow direction adjusting module to operate such that the refrigerant entering the indoor heat exchanger does not exchange heat with the semiconductor refrigeration module comprises:

8. The method for controlling an air conditioner according to any one of claims 1 to 7, further comprising, after the step of obtaining the ambient temperature of the environment in which the air conditioner is located:

9. The method as claimed in any one of claims 1 to 7, wherein a heat releasing terminal of the semiconductor cooling module is heat-exchanged connected to the compressor, and the step of controlling the air conditioner to operate in a cooling mode or a heating mode comprises:

10. The utility model provides an air conditioner, the air conditioner includes refrigerant circulation circuit, refrigerant circulation circuit is including the compressor, outdoor heat exchanger, throttling arrangement and the indoor heat exchanger that communicate in proper order, its characterized in that, the air conditioner still includes:

the control device, the compressor, throttling arrangement, flow direction adjusting module and semiconductor refrigeration module all with control device connects, control device includes: a memory, a processor, and a control program of an air conditioner stored on the memory and executable on the processor, the control program of the air conditioner implementing the steps of the control method of the air conditioner as claimed in any one of claims 1 to 9 when executed by the processor.

11. The air conditioner according to claim 10, wherein said flow direction regulating module comprises a first branch, a first control valve and a second control valve, wherein a heat absorbing end of said semiconductor refrigeration module is in heat exchange connection with said first branch, said first control valve is disposed between said indoor heat exchanger and said throttling device, said second control valve is disposed in said first branch, and said first branch is connected in parallel with said first control valve;

12. The air conditioner according to claim 10 or 11, wherein a heat radiating end of the semiconductor refrigeration module is heat-exchanged connected to the compressor.

13. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, which when executed by a processor implements the steps of the control method of the air conditioner according to any one of claims 1 to 9.