Air conditioner

Abstract

The application provides an air conditioner. The air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, an outdoor fan and a compressor; a light plasma module is arranged at an indoor air inlet, and a positive and negative ion generating module is arranged at an indoor air outlet, and positive ions and / or negative ions are released into airflow blown out from the indoor air outlet; a controller is configured to drive the light plasma module and the positive and negative ion generating module to operate simultaneously when the air conditioner operates in a cooling mode and the indoor fan operates at a first rotating speed, simultaneously drive the indoor fan to operate at a second rotating speed, then control the four-way valve to switch so as to switch the air conditioner to a heating mode, and then control the four-way valve to switch so as to switch the air conditioner to the cooling mode after the air conditioner operates in the heating mode for a period of time; and the second rotating speed is not greater than the first rotating speed. The air conditioner provided by the application is switched from the cooling mode to the heating mode, so that hot air dries the surface of the indoor heat exchanger or the indoor air duct or the indoor fan, and the light plasma module and the positive and negative ion generating module enhance the sterilization and disinfection effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air treatment equipment, in particular to an air conditioner. BACKGROUND

[0002] With the rapid development of air conditioners, people have higher demands for the cleanliness of air conditioner air.

[0003] The air conditioner is usually provided with a light plasma module and a positive and negative ion emitting electrode. The light plasma module can emit light plasma into the air conditioner air. The light plasma module is usually arranged at the indoor air inlet of the air conditioner indoor unit, and the positive and negative ion emitting electrode is arranged at the indoor air outlet of the air conditioner indoor unit. The indoor air enters the indoor air duct from the indoor air inlet under the entrainment of the indoor fan, exchanges heat with the indoor heat exchanger after flowing over the surface of the indoor heat exchanger, and is blown out to the indoor space through the outdoor air outlet. Due to the arrangement of the light plasma module and the positive and negative ion emitting electrode, the air conditioner air is double purified, so that the content of bacteria, fungi and viruses in the air conditioner air blown out from the air conditioner indoor unit is reduced, and the odor is removed by the positive and negative ion emitting electrode, thereby improving the cleanliness of the air conditioner air.

[0004] When the outdoor environment temperature is high, such as in high-temperature weather in summer, the indoor heat exchanger works as an evaporator, and the air conditioner runs in a cooling mode. Since the humidity in the air is high in summer, a large amount of condensate water is formed on the surface of the indoor heat exchanger. Long-term operation of the air conditioner in this case will cause more mildew to breed on the surface of the indoor heat exchanger, the surface of the indoor fan and the indoor air outlet.

[0005] When the outdoor environment temperature is low, such as in cold weather in winter, the indoor heat exchanger works as a condenser, and the air conditioner runs in a heating mode. Since the humidity in the air is low at this time, the interior of the air conditioner indoor unit is relatively dry. At this time, more dust is accumulated and attached to the air conditioner components such as the indoor heat exchanger, the indoor fan and the indoor air outlet. More bacteria and mildew are likely to breed in the dust.

[0006] In the prior art, the air conditioner is provided with a self-cleaning mode. The self-cleaning mode in summer or winter is the same cleaning mode, which cannot effectively clean the actual pollutants generated by the air conditioner in summer and winter. Moreover, the existing self-cleaning mode only cleans the indoor heat exchanger, and cannot clean other internal components of the air conditioner indoor unit. This will cause the dust and bacteria, mildew attached to other internal components of the air conditioner indoor unit to be unable to be cleaned, which will affect the cleanliness of the air conditioner air blown out, thereby adversely affecting the health of the user. SUMMARY

[0007] The application at least solves one of the problems in the related art to some extent.

[0008] To this end, the application aims to provide an air conditioner, which switches from a cooling mode to a heating mode to dry the surface of an indoor heat exchanger or an indoor air duct or an indoor fan, and meanwhile, a light plasma module and a positive and negative ion generating module enhance sterilization and disinfection effects, the air conditioner is switched from the heating mode to the cooling mode to make water vapor condense on the surface of the indoor heat exchanger or the indoor fan or the indoor air duct, and then the air conditioner is switched to run in the heating mode to make the condensed ice crystals into sewage and discharged, effectively reducing the dust on the surface of the indoor heat exchanger or the indoor fan or the indoor air duct, and meanwhile, the light plasma module and the positive and negative ion generating module further sterilize and disinfect the surface of the indoor heat exchanger or the indoor fan or the indoor air duct.

[0009] According to the air conditioner of the application, the air conditioner comprises:

[0010] The air conditioner indoor unit comprises an indoor unit shell, an indoor air outlet and an indoor air inlet are arranged on the indoor unit shell, and an indoor heat exchanger and an indoor fan are arranged in the indoor unit shell;

[0011] The air conditioner outdoor unit is connected with the air conditioner indoor unit, and the air conditioner outdoor unit comprises an outdoor heat exchanger, an outdoor fan and a compressor;

[0012] The four-way valve is arranged in the air conditioner outdoor unit or the air conditioner indoor unit, and is in communication with the compressor, the indoor heat exchanger and the outdoor heat exchanger;

[0013] The light plasma module is arranged at the indoor air inlet, and the light plasma module emits light plasma into the airflow entering the air conditioner indoor unit from the indoor air inlet;

[0014] The positive and negative ion generating module is arranged at the indoor air outlet, and releases positive ions and / or negative ions into the airflow blown out from the indoor air outlet;

[0015] The controller is configured to,

[0016] When the air conditioner runs in the cooling mode and the indoor fan runs at a first rotating speed, the light plasma module and the positive and negative ion generating module are simultaneously driven to run, the indoor fan is simultaneously driven to run at a second rotating speed, the four-way valve is controlled to switch so that the air conditioner is switched to the heating mode, the air conditioner runs in the heating mode for a period of time, and then the four-way valve is controlled to switch so that the air conditioner runs in the cooling mode;

[0017] The second rotating speed is not greater than the first rotating speed.

[0018] According to the air conditioner of the application, the air conditioner comprises:

[0019] The air conditioner indoor unit comprises an indoor unit shell, an indoor air outlet and an indoor air inlet are arranged on the indoor unit shell, and an indoor heat exchanger and an indoor fan are arranged in the indoor unit shell;

[0020] The air conditioner outdoor unit is connected with the air conditioner indoor unit, and comprises an outdoor heat exchanger, an outdoor fan and a compressor;

[0021] The four-way valve is arranged in the air conditioner outdoor unit or the air conditioner indoor unit, and is communicated with the compressor, the indoor heat exchanger and the outdoor heat exchanger;

[0022] The photo-plasma module is arranged at the indoor air inlet, and the photo-plasma module emits photo-plasma into air flow entering the air conditioner indoor unit from the indoor air inlet;

[0023] The positive and negative ion generating module is arranged at the indoor air outlet, and releases positive ions and / or negative ions into air flow blown out from the indoor air outlet

[0024] The controller is configured to,

[0025] When the air conditioner operates in the heating mode and the indoor fan is driven to operate at a third rotating speed, the compressor is controlled to stop, the photo-plasma module and the positive and negative ion generating module are driven to operate, and the indoor fan is driven to operate at a fourth rotating speed at the same time, the compressor is driven to operate again, and the four-way valve is controlled to switch to make the air conditioner operate in the cooling mode, after the air conditioner operates in the cooling mode for a period of time, the four-way valve is controlled to switch to make the air conditioner operate in the heating mode again;

[0026] The fourth rotating speed is not greater than the third rotating speed.

[0027] In some embodiments of the present application, the air conditioner indoor unit comprises a wind deflector and a first driving motor, the wind deflector is connected at the indoor air outlet, the first driving motor is connected with the wind deflector, and the controller is connected with the first driving motor; the wind deflector comprises a first inner side surface for guiding air of the air conditioner, and the air conditioner indoor unit further comprises a front panel provided with the indoor air outlet;

[0028] When the controller drives the photo-plasma module to operate, the positive and negative ion generating module to operate at the same time, and the indoor fan to operate at a second rotating speed at the same time, the first driving motor is driven at the same time to make the wind deflector rotate to a first position;

[0029] When the wind deflector is in the first position, an angle between the front panel and the first inner side surface is an acute angle.

[0030] In some embodiments of the present application, after the air conditioner operates in the heating mode for a period of time, the air conditioner operates in a second internal purification mode:

[0031] The compressor is stopped, the indoor fan is operated at a fifth rotating speed, the first driving motor drives the air deflector to rotate to a second position, and the light plasma module and the positive and negative ion generating module are operated;

[0032] The fifth rotating speed is not greater than the first rotating speed.

[0033] When the air deflector rotates to the second position, the air deflector fully blocks the indoor air outlet.

[0034] In some embodiments of the present application, after the air conditioner operates the second internal purification mode for a period of time, the light plasma module and the positive and negative ion generating module stop operating, the first driving motor drives the air deflector to rotate to a third position, and the air conditioner operates the refrigeration mode again.

[0035] When the air deflector rotates to the third position, the air deflector partially blocks or does not block the indoor air outlet.

[0036] In some embodiments of the present application, the air conditioner indoor unit comprises an air deflector and a first driving motor, the air deflector is connected at the indoor air outlet, the first driving motor is connected with the air deflector, and a controller is connected with the first driving motor; the air deflector comprises a first inner side surface for guiding air of the air conditioner, and the air conditioner indoor unit further comprises a front panel provided with the indoor air outlet.

[0037] When the controller drives the light plasma module to operate, the positive and negative ion generating module to operate, and the indoor fan to operate at a fourth rotating speed, the first driving motor is simultaneously driven to make the air deflector be in the second position.

[0038] When the air deflector rotates to the second position, the air deflector fully blocks the indoor air outlet.

[0039] In some embodiments of the present application, when the controller drives the compressor to operate and simultaneously controls the four-way valve to be diverted to make the air conditioner operate the refrigeration mode, the indoor fan operates at a sixth rotating speed, the sixth rotating speed is not greater than the third rotating speed, and the first driving motor drives the air deflector to rotate to the first position.

[0040] When the air deflector is in the first position, an angle between the front panel and the first inner side surface is an acute angle.

[0041] In some embodiments of the present application, when the indoor fan operates at the sixth rotating speed for a fourth time period and the air deflector is maintained in the first position for the fourth time period, the light plasma module and the positive and negative ion generating module stop operating, and the air conditioner switches to the heating mode again.

[0042] In some embodiments of the present application, the air conditioner indoor unit comprises an air deflector and a first driving motor, the air deflector is connected at the indoor air outlet, the first driving motor is connected with the air deflector, and a controller drives the air deflector to rotate to change an air outlet angle.

[0043] The controller is configured to:

[0044] Normal shutdown mode: control the compressor to stop, the first drive motor drives the air deflector to stop rotating, drives the indoor fan to run at a lower speed than before the normal shutdown mode for a period of time, and then drives the indoor fan to stop rotating, and the first drive motor drives the air deflector to rotate to the second position;

[0045] When the air deflector rotates to the second position, the air deflector fully blocks the indoor air outlet.

[0046] In some embodiments of the present application, the four-way valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port, and the compressor includes a suction port connected to the second valve port and a discharge port connected to the third valve port.

[0047] The present application has at least the following positive effects:

[0048] The present application provides an air conditioner. The air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, an outdoor fan, and a compressor; a light plasma module is arranged at an indoor air inlet, and a positive and negative ion generating module is arranged at an indoor air outlet, and positive ions and / or negative ions are released into the airflow blown out from the indoor air outlet.

[0049] The controller is configured to drive the light plasma module and the positive and negative ion generating module to operate simultaneously, and simultaneously drive the indoor fan to operate at a second speed, and then control the four-way valve to switch so that the air conditioner switches to a heating mode, and after the air conditioner operates in the heating mode for a period of time, the four-way valve is controlled to switch so that the air conditioner operates in the cooling mode when the air conditioner operates in the cooling mode and the indoor fan operates at a first speed. The second speed is not greater than the first speed. The air conditioner of the present application converts from the cooling mode to the heating mode to dry the surface of the indoor heat exchanger or the indoor air duct or the indoor fan, and the light plasma module and the positive and negative ion generating module enhance the sterilization effect.

[0050] The controller is configured to control the compressor to stop, drive the light plasma module and the positive and negative ion generating module to operate, and simultaneously drive the indoor fan to operate at a fourth speed when the air conditioner operates in the heating mode and the indoor fan operates at a third speed, and then drive the compressor to operate and simultaneously control the four-way valve to switch so that the air conditioner operates in the cooling mode, and after the air conditioner operates in the cooling mode for a period of time, the four-way valve is controlled to switch so that the air conditioner operates in the heating mode. The fourth speed is not greater than the third speed. The air conditioner of the present application converts from the heating mode to the cooling mode to condense water vapor on the surface of the indoor heat exchanger or the indoor fan or the indoor air duct, and then converts the air conditioner to operate in the heating mode to discharge the condensed ice crystals as sewage, effectively reducing the dust on the surface of the indoor heat exchanger or the indoor fan or the indoor air duct, and further sterilizing and disinfecting the surface of the indoor heat exchanger or the indoor fan or the indoor air duct through the light plasma module and the positive and negative ion generating module. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0052] Figure 1 is a view of the appearance of an air conditioner indoor unit according to an embodiment of the present application;

[0053] Figure 2 is a front view of an air conditioner indoor unit according to an embodiment of the present application;

[0054] Figure 3 is a schematic view of an air conditioner indoor unit and an ion emission module according to an embodiment of the present application;

[0055] Figure 4 is a schematic view of an ion emission module according to an embodiment of the present application;

[0056] Figure 5 is a schematic view of an ion emission module with wires removed and positive and negative ion emission electrodes according to an embodiment of the present application;

[0057] Figure 6 is a bottom view of Figure 5

[0058] Figure 7 is a control flowchart of a self-cleaning mode of an air conditioner in a cooling mode according to an embodiment of the present application;

[0059] Figure 8 is a control flowchart of a self-cleaning mode of an air conditioner in a heating mode according to an embodiment of the present application;

[0060] In the above drawings:

[0061] 100, air conditioner; 1, air conditioner indoor unit; 11, indoor unit housing; 111, indoor air outlet; 112, indoor air inlet; 12, indoor heat exchanger; 13, indoor fan; 14, air deflector; 2, air conditioner outdoor unit; 21, outdoor heat exchanger; 22, outdoor fan; 23, compressor; 3, throttling device; 4, four-way valve; 5, ion emission module; 51, first housing; 52, light plasma module; 53, positive and negative ion generation module; 54, power supply; 55, light shield; 56, heat dissipation hole. DETAILED DESCRIPTION

[0062] ​In the following, the application will be described by way of example with reference to the accompanying drawings. It is to be understood that elements, structures and features of one embodiment can be beneficially incorporated into another embodiment, without further recitation.

[0063] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0064] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0065] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the following, the application will be described by way of example with reference to the accompanying drawings. Figures 1-8 The embodiments of the present application are described in detail.

[0067] With the wide use of air conditioners 100, people's requirements for the cleanliness of air conditioner 100 air outlet are getting higher and higher. The present application provides an air conditioner 100 capable of cleaning the inside of the air conditioner indoor unit 1 in cooling mode or heating mode.

[0068] The air conditioner 100 comprises an air conditioner indoor unit 1 and an air conditioner outdoor unit 2 connected to each other. The air conditioner indoor unit 1 comprises an indoor unit shell 11, and the indoor unit shell 11 is provided with an indoor air inlet 112 and an indoor air outlet 111, and the indoor air inlet 112 and the indoor air outlet 111 are arranged at intervals. In the present application, the indoor air inlet 112 is arranged below the indoor air outlet 111.

[0069] The air conditioner indoor unit 1 further comprises an indoor heat exchanger 12 and an indoor fan 13 arranged in the indoor unit shell 11, and an indoor air duct in communication with the indoor fan 13, the indoor heat exchanger 12 being in communication with the indoor air duct. One end of the indoor air duct is connected with the indoor air inlet 112, and the other end is connected with the indoor air outlet 111. The indoor fan 13 rotates to suck air current from the indoor air inlet 112 into the indoor air duct, and the air current is heated by the indoor heat exchanger 12 and then blown out from the indoor air outlet 111 to the indoor space.

[0070] A deflector 14 is arranged at the indoor air outlet 111, and the air conditioner indoor unit 1 further comprises a first driving motor. One end of the first driving motor is connected to the indoor unit shell 11 or other mounting structure connected with the indoor unit shell 11, and the other end is connected with the deflector 14 to drive the deflector 14 to rotate, so as to change the air outlet angle of the air conditioner 100 air blown out from the indoor air outlet 111.

[0071] The air conditioner outdoor unit 2 comprises an outdoor unit shell, and further comprises an outdoor heat exchanger 21 and a compressor 23 arranged in the outdoor unit shell. The compressor 23 has a suction port and a discharge port.

[0072] The air conditioner 100 further comprises a throttling device 3 for throttling the refrigerant passing through the condensation process, and the throttling device 3 can be arranged in the air conditioner indoor unit 1 or the air conditioner outdoor unit 2.

[0073] The air conditioner 100 further comprises a four-way valve 4 arranged in the air conditioner outdoor unit 2 or the air conditioner indoor unit 1, which is in communication with the compressor 23, the indoor heat exchanger 12 and the outdoor heat exchanger 21. The four-way valve 4 has a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port is in communication with one of the second valve port and the third valve port, and the fourth valve port is in communication with the other one of the second valve port and the third valve port. The first valve port is connected with the discharge port, and the fourth valve port is connected with the suction port.

[0074] The air conditioner 100 further comprises a controller connected with the four-way valve 4, the compressor 23 and the indoor fan 13. The controller is connected with the four-way valve 4 and controls the signal transmitted to the four-way valve 4. The controller is connected with the compressor 23 to control the stop or operation of the compressor 23. The controller is connected with the indoor fan 13 to control the rotating speed of the indoor fan 13.

[0075] The air conditioner 100 of the present application further comprises an ion generating module, the ion generating module comprises a light ion generating module and a positive and negative ion generating module 53, wherein the emitting electrode of the light ion generating module is arranged at the indoor air inlet 112, and the emitting electrode of the positive and negative ion generating module 53 is arranged at the indoor air outlet 111. The light ion generating module can release ultraviolet rays in the UVC wave band and the UVD wave band at the same time, and the sterilization effect and the odor removal effect are realized through the ultraviolet rays. The positive and negative ion generating module 53 can release positive ions and negative ions, and the positive ions and the negative ions have the effects of sterilization and deodorization.

[0076] When the indoor fan 13 rotates, a low pressure area is formed in the indoor air duct to suck the airflow in the indoor environment from the indoor air inlet 112 into the indoor air duct. The emitting electrode of the light ion generating module releases ultraviolet rays in the UVC wave band and the UVD wave band to sterilize and deodorize the airflow entering the air conditioner indoor unit 1. The airflow sterilized and deodorized enters the indoor air duct and exchanges heat with the indoor heat exchanger 12, and then is blown out through the indoor air outlet 111. The positive and negative ion generating module 53 releases positive ions and negative ions into the airflow blown out from the indoor air outlet 111 to further sterilize and deodorize the air conditioner 100. The first heavy sterilization and deodorization purification is carried out by the light ion generating module at the indoor air inlet 112. The second heavy sterilization and deodorization purification is carried out by the positive and negative ion generating module 53 at the indoor air outlet 111, which can effectively improve the cleanliness of the air conditioner 100, reduce the content of bacteria and mold in the air conditioner 100, reduce the odor carried by the air conditioner 100, and enhance the sterilization and deodorization efficiency of the air conditioner 100.

[0077] In some embodiments of the present application, when the air conditioner 100 operates in the cooling mode, the compressor 23 operates, and the air conditioner 100 performs a refrigeration cycle through the compressor 23, the condenser, the expansion valve and the evaporator. The refrigeration cycle includes compression process, condensation process, expansion process and evaporation process, which provides cold energy to the indoor space through the heat absorption and heat release process of the refrigerant to achieve the cooling of the indoor space.

[0078] The compressor 23 compresses the refrigerant gas into a high-temperature and high-pressure state and discharges the compressed refrigerant gas, which flows into the condenser. The condenser condenses the high-temperature and high-pressure gaseous refrigerant into liquid refrigerant, and the heat is released to the surrounding environment through the condensation process. The liquid refrigerant flowing out of the condenser enters the expansion valve, which expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into low-pressure liquid refrigerant. The low-pressure liquid refrigerant flowing out of the expansion valve enters the evaporator, and the liquid refrigerant absorbs heat and evaporates into low-temperature and low-pressure refrigerant gas when flowing through the evaporator, and the low-temperature and low-pressure refrigerant gas returns to the compressor 23.

[0079] The evaporation process of the refrigerant is carried out in the indoor heat exchanger 12, and the condensation process of the refrigerant is carried out in the outdoor heat exchanger 21. The indoor heat exchanger 12 exchanges heat with the material to be cooled by the latent heat of the evaporation of the refrigerant to achieve the refrigeration effect.

[0080] When the air conditioner 100 operates in the cooling mode, the controller drives the indoor fan 13 to operate at a first rotating speed. The first rotating speed is any rotating speed not less than 0.

[0081] If the air conditioner 100 operates in the cooling mode and the internal cleaning mode is turned on, the air conditioner 100 first operates in the first internal cleaning mode:

[0082] The controller drives the compressor 23 to operate, drives the indoor fan 13 to operate at a second rotating speed at the same time, and drives the light plasma module 52 and the positive and negative ion generating module 53 to operate at the same time, and drives the first driving motor to drive the air deflector 14 to rotate to the first position.

[0083] Specifically, the controller is connected with the compressor 23, and the controller can issue an instruction to control the operating frequency of the compressor 23. When the controller receives the instruction to operate the internal cleaning mode, the controller does not issue an instruction to the compressor 23, so that the compressor 23 operates at the operating frequency before the internal cleaning mode is turned on.

[0084] The controller can issue an instruction to control the rotating speed of the indoor fan 13. When the controller receives the instruction to operate the internal cleaning mode, the controller issues an instruction to the indoor fan 13 to operate at a second rotating speed. The second rotating speed is not greater than the first rotating speed. When the indoor fan 13 receives the instruction to operate at the second rotating speed, the indoor fan 13 is decelerated from the first rotating speed to the second rotating speed, so that the air flow in the air conditioner indoor unit 1 flows slowly.

[0085] Since the controller drives the indoor fan 13 to operate at the second rotating speed at the same time as driving the positive and negative ion generating module 53 and the light plasma module 52 to operate, at this time, the air flow slowly enters the air conditioner indoor unit 1 from the indoor air inlet 112, so that the sterilization and deodorization efficiency of the ultraviolet rays of the UVC wave band and the UVD wave band emitted by the light plasma module 52 is higher. The slow air flow flows slowly in the indoor air duct, so that the air flow plays a cleaning and sterilization role on the components of the air conditioner indoor unit 1 flowing through, and the air flow flowing through the indoor air outlet 111 is sterilized and deodorized again by the positive ions and negative ions emitted by the positive and negative ion generating module 53, so that the sterilization effect of the air flow flowing out of the air conditioner 100 is more obvious.

[0086] The controller is connected with the first driving motor and can send a command to control the first driving motor to operate so as to drive the air deflector 14 to the first position. When the air deflector 14 is at the first position, the air deflector 14 has a first inner side surface for guiding the air flow of the air conditioner 100, and the included angle between the first inner side surface and the front panel of the air conditioner indoor unit 1 is an acute angle, so that the air flow from the indoor air outlet 111 flows along the first inner side surface to the front side of the front panel, and the air conditioner 100 blows out to the oblique upper side, so that the relatively dirty air flow cleaned by the air conditioner indoor unit 1 flows out to the oblique upper side, thereby reducing the probability of the dirty air flow blowing out to the human body.

[0087] When the air conditioner 100 runs the first internal cleaning mode for a period of time, the controller controls the four-way valve 4 to turn so that the air conditioner 100 runs the heating mode.

[0088] It should be noted that before the four-way valve 4 is turned, the air conditioner 100 runs the first internal cleaning mode to preliminarily clean the internal components through which the air flow of the air conditioner 100 flows in the air conditioner indoor unit 1. The air conditioner 100 continues to run the first internal cleaning mode, and the four-way valve 4 is turned so that the air conditioner 100 runs the heating mode. At this time, the air flow of the air conditioner 100 is hot air, and the relatively hot air flow flows in the interior of the air conditioner indoor unit 1.

[0089] Since the air conditioner 100 usually runs the cooling mode in summer, the humidity of the indoor environment in summer is relatively high. During the evaporation process in the indoor heat exchanger 12, the temperature of the surface of the indoor heat exchanger 12 is relatively low, and a large amount of condensate water is formed when the humid air flow flows through the surface of the indoor heat exchanger 12. When the air conditioner indoor unit 1 is in an environment with relatively high humidity for a long time, due to the relatively low temperature in the interior of the air conditioner indoor unit 1, condensate water is sometimes formed on the surface of the indoor fan 13 or the indoor air duct in addition to the surface of the indoor heat exchanger 12. Long time will cause bacteria and mold to breed on the surface of the indoor heat exchanger 12 and / or the indoor fan 13 and / or the indoor air duct, and also cause dust and other pollutants to be adsorbed on the surface of the indoor heat exchanger 12 and / or the indoor fan 13 and / or the indoor air duct.

[0090] Specifically, when the air conditioner 100 runs the cooling mode, the first valve port is connected with the second valve port, and the third valve port is connected with the fourth valve port, so that the refrigerant flowing out of the indoor heat exchanger 12 flows into the suction port of the compressor 23 in sequence through the second valve port and the first valve port, and the refrigerant discharged from the exhaust port of the compressor 23 flows into the outdoor heat exchanger 21 in sequence through the third valve port and the fourth valve port.

[0091] Further, the four-way valve 4 is not powered and is in a power-off state when the air conditioner 100 is in the cooling mode, and the four-way valve 4 is powered when the air conditioner 100 is in the heating mode.

[0092] When the controller switches the four-way valve 4 to make the air conditioner 100 run in the heating mode, the controller outputs a high voltage signal to the four-way valve 4 to make the four-way valve 4 energized, so that the first valve port is connected with the fourth valve port and the third valve port is connected with the second valve port, thereby making the indoor heat exchanger 12 perform the condensation process of the refrigerant, and making the indoor heat exchanger 12 release heat to the air flow entering the air conditioner indoor unit 1 from the indoor air inlet 112, so as to increase the temperature of the air flow.

[0093] When the air conditioner 100 runs in the first internal purification mode and runs in the heating mode, the hot air flow absorbing heat from the indoor heat exchanger 12 is sterilized and deodorized by the ultraviolet light emitted by the photo-plasma module 52 at the indoor air inlet 112, and slowly flows through the surface of the indoor air duct, the indoor fan 13 and the indoor heat exchanger 12 under the action of the indoor fan 13.

[0094] On the one hand, the hot air flow plays a drying role on the surface of the indoor air duct, the indoor fan 13 or the indoor heat exchanger 12, so that the condensed water attached to the surface of the indoor air duct, the indoor fan 13 or the indoor heat exchanger 12 evaporates quickly, thereby reducing the pollution of bacteria and mold caused by the attachment of condensed water to the surface, and effectively maintaining the cleanliness of the air conditioner 100.

[0095] On the other hand, the sterilizing and deodorizing ions released by the photo-plasma module 52 can slowly flow through the surface of the indoor heat exchanger 12, the indoor fan 13 and the indoor air duct along with the slow flow of the hot air flow in the indoor air duct, so as to play a sterilizing and deodorizing effect on the surface of the indoor heat exchanger 12, the indoor fan 13 and the indoor air duct.

[0096] When the hot air flow flows to the outlet of the indoor air duct, the outlet of the indoor air duct communicates with the indoor air outlet 111. The positive and negative ion generating module 53 is arranged at the indoor air outlet 111 and emits positive and negative ions to the hot air flow. Since the hot air flow flows through the surface of the indoor air duct, the indoor fan 13 and the indoor heat exchanger 12 attached with bacteria and mold, the hot air flow may carry some pollutants such as bacteria and mold. The positive and negative ion generating module 53 can sterilize and deodorize the bacteria and mold in the hot air flow again, reduce the content of bacteria and mold in the hot air flow flowing out of the indoor air outlet 111, and reduce the odor, so as to enhance the user experience.

[0097] Since the first driving motor controls the deflector 14 to rotate to the first position, when the deflector 14 is in the first position, the hot air flow flowing out of the indoor air outlet 111 blows towards the front side of the front panel and upwards, so as to reduce the probability of the hot air flow directly blowing to the human body, and at the same time, the influence of the small amount of un-sterilized bacteria and mold in the hot air flow on human health can be reduced. Since the density of the hot air flow is smaller than that of normal air, the hot air flow can be blown to and flow in the upper part of the indoor space, thereby reducing the influence of the hot air flow on the temperature of the indoor space.

[0098] When the air conditioner 100 runs the first internal purification mode and at the same time runs the heating mode for a period of time, the air conditioner 100 runs the second internal purification mode:

[0099] The compressor 23 is stopped, and at the same time, the indoor fan 13 is driven to rotate at the fifth rotating speed, the first driving motor drives the air deflector 14 to rotate to the second position, and the light plasma module 52 and the positive and negative ion generating module are simultaneously maintained to run.

[0100] The time for the air conditioner 100 to run the first internal purification mode and run the heating mode at the same time is the first preset time.

[0101] Specifically, the controller drives the rotating frequency of the compressor 23 to reduce to 0, so that the condensation process inside the indoor heat exchanger 12 gradually weakens, and the surface of the indoor heat exchanger 12 gradually approaches the temperature of the airflow.

[0102] The controller drives the indoor fan 13 to run at the fifth rotating speed, and the fifth rotating speed is not greater than the first rotating speed, so that the airflow inside the air conditioner indoor unit 1 flows slowly under the driving of the indoor fan 13.

[0103] The controller drives the first driving motor to make the air deflector 14 rotate to the second position, when the air deflector 14 rotates to the second position, the air deflector 14 completely covers the indoor air outlet 111, so that the indoor air outlet 111 is closed by the air deflector 14, so that the airflow flows inside the air conditioner indoor unit 1.

[0104] In the second internal purification mode, the light plasma module 52 and the positive and negative ion generating module 53 are maintained to run.

[0105] When the air conditioner 100 runs the second internal purification mode, the rotating frequency of the compressor 23 is reduced to 0 to reduce the temperature influence of the indoor heat exchanger 12 on the airflow flowing into the air conditioner indoor unit 1. Because the air conditioner 100 runs the heating mode before running the second internal mode, reducing the rotating frequency of the compressor 23 is conducive to the subsequent conversion of the air conditioner 100 from the heating mode to the cooling mode.

[0106] The indoor fan 13 rotates at the fifth rotating speed to make the airflow in the indoor space enter the inside of the air conditioner indoor unit 1 from the indoor air inlet 112, when the airflow flows through the indoor air inlet 112, the light plasma module 52 emits sterilization and odor removal ions to the airflow, and the airflow carrying the sterilization and odor removal ions flows through the surface of the indoor air duct, the indoor heat exchanger 12 and the indoor fan 13, so as to achieve the effect of sterilization, disinfection and odor removal on the surface of the indoor air duct, the indoor heat exchanger 12 and the indoor fan 13.

[0107] When the air flow flows to the outlet of the indoor air duct, the outlet of the indoor air duct is connected with the indoor air outlet 111, and the positive ions and the negative ions are released into the air flow at the indoor air outlet 111 to perform the second sterilization and odor removal on the air flow. Since the air deflector 14 is in the second position, the indoor air outlet 111 is closed, and the air flow cannot flow out of the indoor air outlet 111, but only circulates in the internal part of the air conditioner indoor unit 1.

[0108] When the air flow circulates in the internal part of the air conditioner indoor unit 1, the light plasma module 52 and the positive and negative ion generating module 53 continuously emit the sterilization and odor removal ions into the air flow, so that the sterilization and odor removal ions accumulate in the internal part of the air conditioner indoor unit 1, and the air flow carrying the sterilization and odor removal ions continuously circulates in the internal part of the air conditioner indoor unit 1, thereby purifying the bacteria, mold and odor substances left in the internal part of the air conditioner indoor unit 1 and thoroughly cleaning the internal part of the air conditioner indoor unit 1.

[0109] When the air conditioner 100 runs the second internal purification mode for a period of time, the light plasma module 52 and the positive and negative ion generating module 53 stop running, and the first driving motor drives the air deflector 14 to rotate to the third position.

[0110] It should be noted that the time for the air conditioner 100 to run the second internal purification mode is a second preset time, and the second preset time is equal to the first preset time. In some embodiments, the first preset time and the second preset time are both 20 minutes.

[0111] Specifically, when the air conditioner 100 runs the second internal purification mode for a period of time, a thorough cleaning effect is achieved on the bacteria, mold and odor substances in the internal part of the air conditioner indoor unit 1.

[0112] The first driving motor drives the air deflector 14 to rotate to the third position, and the third position is an arbitrary angle between the air deflector 14 and the indoor air outlet 111 to perform air outlet, so as to guide the air flow circulating in the air conditioner indoor unit 1 during the second internal purification mode to blow out, so that the concentration of the sterilization and odor removal ions emitted by the light plasma module 52 and the positive and negative ion generating module 53 in the internal part of the air conditioner indoor unit 1 is reduced, and the concentration of the sterilization and odor removal ions in the air blown out by the air conditioner 100 is maintained at a low level.

[0113] After the light plasma module 52 and the positive and negative ion generating module 53 stop running, and the first driving motor drives the air deflector 14 to rotate to the third position, the controller controls the four-way valve 4 to switch, so that the air conditioner 100 is converted to the cooling mode, and the air conditioner 100 blows cold air to the indoor space, so that the air conditioner 100 continues to lower the temperature of the indoor environment to meet the user's demand for cooling the indoor environment.

[0114] In some embodiments of the present application, when the air conditioner 100 operates in the heating mode, the compressor 23 operates, and the air conditioner 100 performs a heating cycle through the compressor 23, the condenser, the expansion valve, and the evaporator. The heating cycle includes a compression process, a condensation process, an expansion process, and an evaporation process, which provides heat to the indoor space through the heat absorption and release processes of the refrigerant, and realizes the temperature rise of the indoor space.

[0115] The difference between the heating cycle and the refrigeration cycle is that the condensation process of the refrigerant is carried out in the indoor heat exchanger 12, and the evaporation process of the refrigerant is carried out in the outdoor heat exchanger 21. The refrigerant absorbs heat from the outdoor environment and releases heat to the indoor environment through the refrigeration cycle, thereby realizing the temperature rise of the indoor space.

[0116] When the air conditioner 100 is in the heating mode, the controller drives the indoor fan 13 to operate at a third rotational speed, which is any rotational speed not less than 0.

[0117] Since the air conditioner 100 operates in the heating mode before operating the internal cleaning mode, the air conditioner 100 is usually operated in the heating mode in winter, at which time the humidity of the indoor space is low, and the airflow flowing into the air conditioner indoor unit 1 is relatively dry. Compared with the air conditioner 100 operated in summer, there is more dust in the air conditioner 100 at this time, and bacteria, mold, and other odor substances are generated in the dust.

[0118] If the air conditioner 100 operates in the heating mode while the internal cleaning mode is turned on, the air conditioner 100 first operates in the third internal cleaning mode:

[0119] The compressor 23 is stopped, and at the same time, the indoor fan 13 operates at a fourth wind speed, the first driving motor drives the air deflector 14 to rotate to the second position, and the positive and negative ion generating module and the photo-plasma module are simultaneously operated.

[0120] Specifically, the controller drives the operating frequency of the compressor 23 to reduce to 0, so that the condensation process inside the indoor heat exchanger 12 gradually weakens, and the surface of the indoor heat exchanger 12 gradually approaches the temperature of the airflow.

[0121] The controller drives the indoor fan 13 to operate at a fourth rotational speed, which is not greater than the first rotational speed, so that the airflow in the interior of the air conditioner indoor unit 1 flows slowly under the driving of the indoor fan 13.

[0122] The controller drives the first driving motor to rotate the air deflector 14 to the second position. When the air deflector 14 rotates to the second position, the air deflector 14 completely covers the indoor air outlet 111, so that the indoor air outlet 111 is closed by the air deflector 14, thereby making the airflow flow in the interior of the air conditioner indoor unit 1.

[0123] When the air conditioner 100 runs the third internal purification mode, the light plasma module 52 and the positive and negative ion generating module 53 run simultaneously for a period of time.

[0124] When the air conditioner 100 runs the third internal purification mode, the operating frequency of the compressor 23 is reduced to 0 to reduce the temperature influence of the indoor heat exchanger 12 on the airflow flowing into the air conditioner indoor unit 1. Since the air conditioner 100 runs the heating mode before running the third internal purification mode, reducing the operating frequency of the compressor 23 when the air conditioner 100 runs the third internal purification mode facilitates the air conditioner 100 to switch from the heating mode to the cooling mode after running the third internal purification mode.

[0125] The indoor fan 13 rotates at the fourth rotating speed to make the airflow of the indoor space enter the interior of the air conditioner indoor unit 1 from the indoor air inlet 112, and the light plasma module 52 emits sterilization and odor removal ions to the airflow when the airflow flows through the indoor air inlet 112. The airflow carrying the sterilization and odor removal ions flows through the surfaces of the indoor air duct, the indoor heat exchanger 12 and the indoor fan 13 to achieve the sterilization and odor removal effects on the surfaces of the indoor air duct, the indoor heat exchanger 12 and the indoor fan 13.

[0126] When the airflow flows to the outlet of the indoor air duct, the outlet of the indoor air duct is connected with the indoor air outlet 111, and the indoor air outlet 111 releases positive ions and negative ions to the airflow to perform the second sterilization and odor removal on the airflow. Since the air deflector 14 is in the second position, the indoor air outlet 111 is closed, and the airflow cannot flow out of the indoor air outlet 111 but only circulates in the interior of the air conditioner indoor unit 1.

[0127] When the airflow circulates in the interior of the air conditioner indoor unit 1, the light plasma module 52 and the positive and negative ion generating module 53 continuously emit sterilization and odor removal ions to the airflow, so that the sterilization and odor removal ions accumulate in the interior of the air conditioner indoor unit 1, thereby making the airflow carrying the sterilization and odor removal ions continuously circulate in the interior of the air conditioner indoor unit 1 to purify the bacteria, mold and odor substances in the interior of the air conditioner indoor unit 1 and deeply clean the interior of the air conditioner indoor unit 1.

[0128] When the air conditioner 100 runs the third internal purification mode for a period of time, the controller controls the four-way valve 4 to switch to make the air conditioner 100 change to the cooling mode, and drives the compressor 23 to run to make the air conditioner 100 run in the cooling mode.

[0129] It should be noted that the time for the air conditioner 100 to run the third internal purification mode is the third preset time.

[0130] Specifically, the controller outputs a low voltage signal to the four-way valve 4 to make the four-way valve 4 de-energized, so that the first valve port is connected with the second valve port, and the third valve port is connected with the fourth valve port, to make the refrigerant flowing out of the indoor heat exchanger 12 flow into the suction port of the compressor 23 through the second valve port and the first valve port in sequence, and the refrigerant flowing out of the discharge port of the compressor 23 flow into the outdoor heat exchanger 21 through the third valve port and the fourth valve port in sequence.

[0131] When the air conditioner 100 operates in the cooling mode, the air conditioner 100 simultaneously operates in the fourth internal purification mode:

[0132] The controller drives the indoor fan 13 to operate at the sixth rotating speed, and simultaneously drives the light plasma module 52 and the positive and negative ion generating module 53 to operate, and simultaneously drives the first driving motor to drive the air deflector 14 to rotate to the first position.

[0133] It should be noted that the time for the air conditioner 100 to operate in the cooling mode and simultaneously operate in the fourth internal purification mode is the fourth preset time. In some embodiments, the third preset time is equal to the fourth preset time. The third preset time and the fourth preset time are both 20 minutes.

[0134] Specifically, the controller sends an instruction to the indoor fan 13 to operate at the sixth rotating speed. The sixth rotating speed is not greater than the third rotating speed. When the indoor fan 13 receives the instruction to operate at the sixth rotating speed, the indoor fan 13 sucks the air flow into the air conditioner indoor unit 1, so that the air flow in the air conditioner indoor unit 1 flows slowly.

[0135] Since the controller drives the indoor fan 13 to operate at the sixth rotating speed, and simultaneously drives the positive and negative ion generating module 53 and the light plasma module 52 to operate, at this time, the air flow slowly enters the air conditioner indoor unit 1 from the indoor air inlet 112, so that the sterilization and deodorization efficiency of the ultraviolet light of the UVC wave band and the UVD wave band emitted by the light plasma module 52 is higher. The slow air flow flows slowly in the indoor air duct, so that the air flow plays a cleaning and sterilization role on the components of the air conditioner indoor unit 1 through which the air flow flows, and the air flow flows through the indoor air outlet 111 and is sterilized and deodorized again by the positive ions and the negative ions emitted by the positive and negative ion generating module 53, so that the sterilization effect of the air flow flowing out of the air conditioner 100 is more obvious.

[0136] The controller is connected with the first driving motor and can send a command to control the first driving motor to operate so as to drive the air deflector 14 to the first position. When the air deflector 14 is at the first position, the air deflector 14 has a first inner side surface for guiding the air flow of the air conditioner 100, and the included angle between the first inner side surface and the front panel of the air conditioner indoor unit 1 is an acute angle, so that the air flow from the indoor air outlet 111 flows along the first inner side surface to the front side of the front panel, and the air conditioner 100 blows out to the oblique upper side, so that the relatively dirty air flow cleaned by the air conditioner indoor unit 1 flows to the oblique upper side, thereby reducing the probability of the dirty air flow blowing to the human body.

[0137] When the air conditioner 100 operates in the cooling mode, the air conditioner 100 simultaneously operates in the fourth internal purification mode. The evaporation process of the refrigerant is carried out in the indoor heat exchanger 12, so that the indoor heat exchanger 12 releases cold energy to the air flow flowing through the surface of the indoor heat exchanger 12, and the water vapor in the air flow encounters the relatively cold indoor heat exchanger 12, and the frost is formed on the surface of the indoor heat exchanger 12, and the dust and bacteria or mold and other pollutants adhered to the surface of the indoor heat exchanger 12 are stripped off with the water crystals.

[0138] Before the air conditioner 100 operates in the cooling mode, the third internal cleaning mode is operated first, and the light plasma module 52 and the positive and negative ion generating module 53 sterilize the interior of the air conditioner indoor unit 1, so that the air conditioner indoor unit 1 can achieve the sterilization effect on the interior of the air conditioner indoor unit 1 before operating in the cooling mode. When the air conditioner indoor unit 1 operates in the cooling mode, the surface of the indoor heat exchanger 12 will produce frost, and sometimes the surface of the indoor air duct or the indoor fan 13 will also have condensed water. Since the interior of the air conditioner indoor unit 1 is in a relatively humid environment, the probability of the sterilization and odor removal ions emitted by the light plasma module 52 and the positive and negative ion generating module 53 directly contacting the surfaces of the indoor heat exchanger 12, the indoor fan 13 and the indoor air duct is reduced. Therefore, before the air conditioner 100 operates in the cooling mode, the third internal cleaning mode is operated first, so that the sterilization and odor removal ions generated by the light plasma module 52 and the positive and negative ion generating module 53 can preliminarily sterilize and disinfect the interior of the air conditioner indoor unit 1, thereby making the overall sterilization and disinfection effect of the internal cleaning mode more thorough.

[0139] After the fourth internal purification mode operates for a period of time, the air conditioner 100 ends the internal purification process. The light plasma module 52 and the positive and negative ion generating module 53 stop operating, and the first driving motor drives the air deflector 14 to rotate to the third position.

[0140] Specifically, when the fourth internal purification mode runs for a period of time, frost formed by condensation of water vapor is formed on the surface of the indoor heat exchanger 12, and sometimes part of the frost is formed on the surface of the indoor air duct and the indoor fan 13, and the light plasma module 52 and the positive and negative ion generating module 53 run for a period of time, which has a significant sterilization effect on the bacteria and mold in the air conditioner indoor unit 1.

[0141] The first driving motor drives the air deflector 14 to rotate to the third position, when the air deflector 14 is in the third position, the air deflector 14 opens the indoor air outlet 111, and the air outlet angle is an arbitrary angle, so that the air conditioner 100 blows air to the indoor space at an arbitrary angle.

[0142] When the light plasma module 52 and the positive and negative ion generating module 53 stop running, and the first driving motor drives the air deflector 14 to rotate to the third position, the controller controls the four-way valve 4 to rotate so that the air conditioner 100 runs in the heating mode.

[0143] Specifically, after the air conditioner 100 runs in the fourth internal purification mode, a layer of frost is formed on the surface of the indoor heat exchanger 12 / indoor fan 13 / indoor air duct. When the air conditioner 100 is switched to run in the cooling mode, the refrigerant in the indoor evaporator undergoes a condensation process, and the frost on the surface of the indoor heat exchanger 12 / indoor fan 13 / indoor air duct melts when heated, and the melted sewage flows into the water pan of the air conditioner indoor unit 1, and the bottom of the water pan has a drain pipe, and the sewage flows out of the air conditioner indoor unit 1 along the drain pipe.

[0144] When the air conditioner 100 is in the heating mode after ending the fourth internal purification mode, the parameters of the heating mode are automatically set to be the same as those of the air conditioner 100 before running in the internal cleaning mode, so that the air conditioner 100 continues to provide heat to the indoor space according to the user's needs.

[0145] In the prior art, the air conditioner 100 is provided with a self-cleaning mode, and the self-cleaning mode is the same cleaning mode in summer or winter. However, in the actual operation process of the air conditioner 100, when the outdoor environment temperature is high, such as in the high-temperature weather in summer, the indoor heat exchanger 12 works as an evaporator, and the air conditioner 100 operates in a cooling mode. Because the humidity in the air is large in summer, a large amount of condensate water is formed on the surface of the indoor heat exchanger 12, and the long-term operation of the air conditioner 100 in this case will cause the condensate water to accumulate on the surface of the indoor heat exchanger 12, the surface of the indoor fan 13 and the indoor air outlet, and breed more bacteria and mold. At the same time, dust is also easy to be adsorbed on the surface of the internal components of the air conditioner indoor unit 1. When the outdoor environment temperature is low, such as in the cold weather in winter, the indoor heat exchanger 12 works as a condenser, and the air conditioner 100 operates in a heating mode. Because the humidity in the air is small at this time, the inside of the air conditioner indoor unit 1 is relatively dry, and a large amount of dust is accumulated and attached to the indoor heat exchanger 12, the indoor fan 13 and the indoor air outlet 111 and other components of the air conditioner 100. The dust is easy to breed more bacteria and mold. The single self-cleaning mode in the prior art cannot effectively clean the actual pollutants generated by the air conditioner 100 in summer and winter, and the existing self-cleaning mode only cleans the indoor heat exchanger 12, and cannot clean other internal components of the air conditioner indoor unit 1. This will cause the dust and bacteria, mold and the like attached to other components of the air conditioner indoor unit 1, such as the indoor air duct, the air deflector 14, the indoor fan 13 and the indoor air outlet 111, to be unable to be cleaned, which will affect the cleanliness of the blown air of the air conditioner 100, thereby causing adverse effects on the health of the user.

[0146] Compared with the prior art, the technical scheme of the application runs different self-cleaning modes in the refrigeration mode and the heating mode. When the air conditioner 100 is in the refrigeration mode which is commonly used in summer and runs for a long time, a layer of condensed water exists on the outer surface of the indoor heat exchanger 12 due to the high humidity in the air, bacteria and mold breed in the condensed water, and the surface of the indoor heat exchanger 12 cannot be completely cleaned. In this case, the air conditioner 100 is switched to the heating mode to dry the outer surface of the indoor heat exchanger 12 and other components of the air conditioner indoor unit 1 through which the air flows, and the ion emission module 5 is turned on, so that the hot air can effectively disinfect and sterilize the interior of the air conditioner indoor unit 1 in the refrigeration mode. Compared with the technical scheme in the prior art in which only the ion emission module 5 is turned on, the technical scheme has obvious progress. When the air conditioner 100 is in the heating mode which is commonly used in winter and runs for a long time, the surfaces of the air deflector 14, the indoor air duct and the indoor heat exchanger 12 of the air conditioner indoor unit 1 are covered with more dust due to the high humidity in winter. In this case, the air conditioner 100 is switched to the refrigeration mode to cool the surface of the indoor heat exchanger 12, so that the water vapor in the air flow condenses into frost on the surface of the indoor heat exchanger 12. Then, the air conditioner 100 is switched to the heating mode to melt the condensed frost, so that the water from the melted frost washes away the dust on the surface of the indoor heat exchanger 12, thereby achieving cleaning of the indoor heat exchanger 12 and other internal components of the air conditioner indoor unit 1.

[0147] In some embodiments of the application, when the air conditioner 100 runs in the refrigeration mode, the controller receives a shutdown instruction, and the air conditioner 100 performs normal shutdown mode:

[0148] The compressor 23 stops rotating, the first driving motor does not perform any action to maintain the air deflector 14 at the position before the air conditioner 100 performs normal shutdown mode, and the indoor fan 13 runs at the seventh rotating speed.

[0149] Specifically, the seventh rotating speed is not greater than the first rotating speed, so that the air flow flows slowly in the interior of the air conditioner indoor unit 1. At this time, since the compressor 23 stops rotating, the surface temperature of the indoor heat exchanger 12 gradually approaches the temperature of the indoor space, and the condensation amount of water vapor on the surface of the indoor heat exchanger 12 decreases.

[0150] When the normal shutdown mode runs for a period of time, the condensed water on the surfaces of the indoor heat exchanger 12, the indoor fan 13 and the indoor air duct is blown dry by the air flow, which can effectively reduce the bacterial or mold pollution in the interior of the air conditioner indoor unit 1 caused by humidity, so that the interior of the air conditioner 100 is cleaner, and the air blown out by the air conditioner 100 is cleaner.

[0151] After the normal shutdown mode runs for a period of time, the indoor fan 13 stops rotating, the first driving motor drives the air deflector 14 to rotate to the second position, and the air conditioner 100 no longer blows out the air of the air conditioner 100.

[0152] In some embodiments of the present application, when the air conditioner 100 is running the normal shutdown mode, the light plasma module 52 and the positive and negative ion generating module are running to release sterilization and odor-removing ions into the airflow, so that the airflow can play a role in sterilization and odor removal for the air conditioner indoor unit 1.

[0153] In some embodiments of the present application, the ion emitting module 5 includes a first shell 51 located at the outermost side thereof, and further includes a light plasma module 52, a positive and negative ion generating module 53 and a power supply 54. The first shell 51 is located at the outermost side of the ion emitting module 5, and the light plasma emitting module 5 is arranged in the first shell 51. The light plasma emitting module 5 uses uv-nano light plasma purification technology. One side of the first shell 51 is connected with a wire, and the other end of the wire is connected with the positive and negative ion generating module 53. The positive and negative ion generating module 53 can emit positive and negative ions.

[0154] The ion emitting module 5 further includes a light shielding plate 55. The light plasma emitting module 5 can be arranged as a light plasma tube. The light shielding plate 55 is used to shield the light plasma tube from irradiating air in directions other than the airflow entering the indoor unit shell 11, so that the irradiation of the light plasma tube is more concentrated.

[0155] The power supply 54 is arranged in the first shell 51. The power supply 54 provides the power required for the light plasma tube and the positive and negative ion generating module 53 to operate.

[0156] The ultraviolet light emitted by the light plasma tube irradiates in parallel to the indoor heat exchanger 12 in the transverse direction, so as to increase the area of the airflow flowing through the surface of the indoor heat exchanger 12 that is irradiated by the light plasma tube. The light plasma tube releases UVC and UVD dual-band ultraviolet light, which can achieve ultraviolet irradiation sterilization and light plasma sterilization for the airflow entering the indoor unit shell 11.

[0157] The amount of negative ions released by the positive and negative ion generating module 53 is greater than the amount of positive ions, so that more negative ions with better sterilization effect can be released, thereby making the sterilization effect at the indoor air outlet 111 more favorable.

[0158] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An air conditioner characterized by comprising: The application relates to an air conditioner, which comprises an indoor unit, an outdoor unit, a four-way valve, a light plasma module, a positive and negative ion generating module and a guide vane. The indoor unit comprises an indoor unit shell, an indoor air outlet, an indoor air inlet, an indoor heat exchanger and an indoor fan. The outdoor unit comprises an outdoor heat exchanger, an outdoor fan and a compressor. The four-way valve is arranged in the outdoor unit or the indoor unit and is communicated with the compressor, the indoor heat exchanger and the outdoor heat exchanger. The light plasma module is arranged at the indoor air inlet and emits light plasma into airflow entering the indoor unit from the indoor air inlet. The positive and negative ion generating module is arranged at the indoor air outlet and releases positive ions and / or negative ions into airflow blown from the indoor air outlet. The guide vane is connected at the indoor air outlet. The controller is configured to drive the light plasma module and the positive and negative ion generating module to operate simultaneously when the air conditioner operates in a cooling mode and the indoor fan operates at a first rotating speed, drive the indoor fan to operate at a second rotating speed and drive the guide vane to rotate to a first position, control the four-way valve to switch the air conditioner to a heating mode, control the compressor to stop rotating after the air conditioner operates in the heating mode for a period of time, drive the indoor fan to operate at a fifth rotating speed and drive the guide vane to rotate to a second position, and control the four-way valve to switch the air conditioner to the cooling mode. The second rotating speed is not greater than the first rotating speed, and the fifth rotating speed is not greater than the first rotating speed. When the guide vane is in the first position, the guide vane and the indoor unit shell form an acute angle, and when the guide vane rotates to the second position, the guide vane completely covers the indoor air outlet. The application relates to an air conditioner, which comprises an indoor unit, an outdoor unit, a four-way valve, a light plasma module, a positive and negative ion generating module and a guide vane. The indoor unit comprises an indoor unit shell, an indoor air outlet, an indoor air inlet, an indoor heat exchanger and an indoor fan.

2. An air conditioner characterized by comprising: The outdoor unit comprises an outdoor heat exchanger, an outdoor fan and a compressor. The four-way valve is arranged in the outdoor unit or the indoor unit and is communicated with the compressor, the indoor heat exchanger and the outdoor heat exchanger. The light plasma module is arranged at the indoor air inlet and emits light plasma into airflow entering the indoor unit from the indoor air inlet. The positive and negative ion generating module is arranged at the indoor air outlet and releases positive ions and / or negative ions into airflow blown from the indoor air outlet. The guide vane is connected at the indoor air outlet. The controller is configured to drive the light plasma module and the positive and negative ion generating module to operate simultaneously when the air conditioner operates in a cooling mode and the indoor fan operates at a first rotating speed, drive the indoor fan to operate at a second rotating speed and drive the guide vane to rotate to a first position, control the four-way valve to switch the air conditioner to a heating mode, control the compressor to stop rotating after the air conditioner operates in the heating mode for a period of time, drive the indoor fan to operate at a fifth rotating speed and drive the guide vane to rotate to a second position, and control the four-way valve to switch the air conditioner to the cooling mode. ​ ​ When the air conditioner runs in the heating mode and drives the indoor fan to run at a third rotating speed, the compressor is controlled to stop, the light plasma module and the positive and negative ion generating module are driven to run, and the indoor fan is driven to run at a fourth rotating speed at the same time, the air deflector is driven to be in the second position at the same time, the compressor is driven to run again and the four-way valve is controlled to reverse at the same time so that the air conditioner runs in the cooling mode, the indoor fan is controlled to run at a sixth rotating speed at the same time, and the air deflector is driven to rotate to the first position, the air conditioner runs in the cooling mode for a period of time, and then the four-way valve is controlled to reverse so that the air conditioner runs in the heating mode; Wherein, the fourth rotating speed is not greater than the third rotating speed, and the sixth rotating speed is not greater than the third rotating speed; when the air deflector rotates to the second position, the air deflector fully blocks the indoor air outlet, and when the air deflector is in the first position, the angle between the air deflector and the indoor machine shell is an acute angle.

3. The air conditioner according to claim 1, wherein The air conditioner indoor unit comprises a first driving motor, the first driving motor is connected with the air deflector, and the controller is connected with the first driving motor; the air deflector comprises a first inner side surface for guiding air conditioner air, and the air conditioner indoor unit further comprises a front panel provided with the indoor air outlet; When the controller drives the light plasma module to run, the positive and negative ion generating module runs at the same time, and the indoor fan runs at a second rotating speed at the same time, the first driving motor is driven at the same time so that the air deflector rotates to the first position; When the air deflector is in the first position, the angle between the front panel and the first inner side surface is an acute angle.

4. The air conditioner according to claim 3, wherein When the air conditioner runs in the heating mode for a period of time, the air conditioner runs in a second internal purification mode: The compressor stops, the indoor fan runs at a fifth rotating speed at the same time, the first driving motor drives the air deflector to rotate to the second position at the same time, and the light plasma module and the positive and negative ion generating module run at the same time When the air deflector rotates to the second position, the air deflector fully blocks the indoor air outlet.

5. The air conditioner according to claim 4, wherein After the air conditioner runs in the second internal purification mode for a period of time, the light plasma module and the positive and negative ion generating module stop running, the first driving motor drives the air deflector to rotate to a third position at the same time, and the air conditioner runs in the cooling mode again; When the air deflector rotates to the third position, the air deflector partially blocks or does not block the indoor air outlet.

6. The air conditioner according to claim 2, wherein The air conditioner indoor unit comprises a first driving motor, the first driving motor is connected with the air deflector, and the controller is connected with the first driving motor; the air deflector comprises a first inner side surface for guiding air conditioner air, and the air conditioner indoor unit further comprises a front panel provided with the indoor air outlet; When the controller drives the light plasma module to run, the positive and negative ion generating module runs, and the indoor fan runs at a fourth rotating speed, the first driving motor is driven at the same time so that the air deflector is in the second position.

7. The air conditioner according to claim 6, wherein When the controller drives the compressor to run and simultaneously controls the four-way valve to reverse to make the air conditioner run in a cooling mode, the indoor fan runs at a sixth rotating speed, and the first driving motor drives the air deflector to rotate to a first position; When the air deflector is at the first position, an angle between the front panel and the first inner side is an acute angle.

8. The air conditioner according to claim 7, wherein When the indoor fan runs at the sixth rotating speed for a fourth time period and the air deflector is maintained at the first position for the fourth time period, the light plasma module and the positive and negative ion generation module stop running, and the air conditioner is switched to a heating mode again.

9. The air conditioner according to claim 1 or 2, wherein The air conditioner indoor unit comprises an air deflector and a first driving motor, the air deflector is connected at the indoor air outlet, the first driving motor is connected with the air deflector, and the controller drives the air deflector to rotate to change the air outlet angle; The controller is configured to: Normal shutdown mode: control the compressor to stop running, the first driving motor drives the air deflector to stop rotating, drives the indoor fan to run at a rotating speed lower than the rotating speed before the normal shutdown mode for a period of time, and then drives the indoor fan to stop rotating, and the first driving motor drives the air deflector to rotate to a second position; When the air deflector rotates to the second position, the air deflector completely blocks the indoor air outlet.

10. The air conditioner according to claim 1 or 2, wherein The four-way valve comprises a first valve port, a second valve port, a third valve port and a fourth valve port, and the compressor comprises a suction port connected with the second valve port and a discharge port connected with the third valve port.

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