Air conditioner

Abstract

The invention discloses an air conditioner, and relates to a hydroxyl generating device, the hydroxyl generating device comprises a discharge electrode arranged in an internal air duct, an internal fan and a water absorbing part arranged near an air supply outlet, the discharge electrode ionizes oxygen in air to generate oxygen ions, the internal fan is started, and the water absorbing part is arranged near the air supply outlet. Airflow enters the shell through the return air inlet, flows through the discharge electrode, carries oxygen ions and flows through the water absorption part, and the oxygen ions and water in the water absorption part generate hydroxyl radicals; under the action of the internal fan, the hydroxyl radicals are diffused in the length direction of the indoor heat exchanger; and after a period of time, an indoor fan is started to drive the hydroxyl radicals to diffuse into the heat exchange air duct. Under the action of an internal fan, the released hydroxyl radicals firstly diffuse transversely along the air conditioner and can cover all transverse parts and parts. And hydroxyl radicals are diffused into the heat exchange air duct through the indoor fan and act on all parts in the heat exchange air duct such as the indoor fan, and effective cleaning of the interior of the air conditioner is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner. Background Art

[0002] Due to its strong oxidizing property, hydroxyl radicals are widely used in water treatment, air purification, degradation of organic pollutants, material surface modification, etc. In the field of air purification, a hydroxyl generator is arranged inside the air conditioner housing to generate hydroxyl radicals.

[0003] In the related art, the generation mechanism of the hydroxyl generator is to collect water, and then use DC high voltage to ionize the collected water to produce hydroxyl. For example, the semiconductor refrigeration sheet connected to the bottom of the metal needle-shaped emitter electrode works to cool the emitter electrode. When the temperature is lower than the dew point temperature, condensed water will form on the electrode. After connecting the high-voltage DC, a strong electric field is formed around the emitter electrode, and the water attached to the emitter electrode is ionized to form hydroxyl radicals. However, the number of hydroxyl radicals generated in this way is relatively small, and the energy consumption is large, and the cost is high.

[0004] In view of this, this application is filed. Summary of the invention

[0005] In the hydroxyl generator in the present application, a discharge electrode and a water absorption component are arranged along the air flow direction. First, the discharge electrode is used to ionize oxygen to generate oxygen ions, and the oxygen ions and water generate hydroxyl radicals. The airflow enters the outer casing through the return air port and carries the oxygen ions ionized by the discharge electrode to flow out of the outer casing through the air supply port, thereby realizing long-distance and large-scale diffusion of hydroxyl radicals and improving the purification effect.

[0006] The present application embodiment provides an air conditioner, which includes:

[0007] An indoor housing is used to form an outer contour of the indoor unit, and the indoor housing is formed with an indoor air inlet and an indoor air outlet;

[0008] A heat exchange air duct formed in an indoor shell;

[0009] An indoor fan is arranged in the heat exchange air duct to accelerate the air flow rate;

[0010] An indoor heat exchanger is arranged in the heat exchange air duct and is used for exchanging heat with the air flow;

[0011] A hydroxyl generating device is provided on the indoor heat exchanger, and the hydroxyl generating device comprises:

[0012] A housing having a return air port and a supply air port formed thereon;

[0013] An internal air duct is formed inside the housing and is connected to the return air port and the supply air port;

[0014] A driving power supply, which is arranged inside the housing and is used to provide power;

[0015] A discharge electrode is disposed in the internal air duct, and the discharge electrode is electrically connected to a driving power source to ionize oxygen to generate oxygen ions;

[0016] An internal fan is arranged in the internal air duct so that the air flows from the return air port through the discharge electrode and delivers the oxygen ions to the supply air port;

[0017] A water absorbing component is arranged near the air supply port, and water in the water absorbing component generates hydroxyl radicals with oxygen ions flowing through the air supply port;

[0018] The controller is configured to control the driving power supply to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and turns on the internal fan, so that the airflow enters the internal air duct through the return air port, flows through the discharge electrode, carries the oxygen ions, flows through the water absorbing component, and the oxygen ions and the water in the water absorbing component generate hydroxyl radicals;

[0019] Under the action of the internal fan, the hydroxyl radicals follow the air flow through the air supply port and leave the internal air duct and diffuse along the length direction of the indoor heat exchanger;

[0020] After a period of time, the indoor fan is turned on to drive the hydroxyl radicals to diffuse inside the heat exchange duct.

[0021] The indoor air first enters the housing through the return air port, then flows through the discharge electrode, which ionizes to produce oxygen ions. Then, the air carrying oxygen ions flows through the water absorption component, where water combines with oxygen ions to produce hydroxyl free radicals. The generated hydroxyl free radicals then diffuse along the length of the indoor heat exchanger, purifying the air flowing through the heat exchanger, effectively removing pollutants such as particulate matter, bacteria and viruses in the air, and improving indoor air quality.

[0022] In some embodiments, the air conditioner further comprises:

[0023] An air guide plate, which is arranged at the indoor air outlet;

[0024] A driving component connected to the air deflector to open or close the air deflector;

[0025] The controller is configured to drive the driving component to close the air guide plate before the discharge electrode ionizes oxygen to generate oxygen ions.

[0026] In some embodiments, the controller is configured to turn off the indoor fan after the indoor fan operates for a period of time.

[0027] In some embodiments, the controller is configured so that the hydroxyl generating device and the indoor fan operate in an alternating cycle to circulate and purify the interior of the heat exchange air duct.

[0028] In some embodiments, the air conditioner further comprises:

[0029] An air guide plate, which is arranged at the indoor air outlet;

[0030] A driving component connected to the air deflector to open or close the air deflector;

[0031] The controller is configured to control the driving component to drive the air guide plate to open the indoor air outlet;

[0032] The driving power supply is controlled to provide electric energy to the discharge electrode, so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and the internal fan is turned on. The airflow enters the internal air duct through the return air port, flows through the discharge electrode, carries the oxygen ions, flows through the water absorbing component, and the oxygen ions and the water in the water absorbing component generate hydroxyl free radicals;

[0033] Under the action of the internal fan, the hydroxyl radicals leave the internal air duct with the air flow through the air supply port and diffuse along the length direction of the indoor heat exchanger;

[0034] After a period of time, the indoor fan is turned on, and the indoor wind enters the indoor shell from the indoor air inlet, carrying hydroxyl free radicals and diffusing into the room through the indoor air outlet.

[0035] In some embodiments, the controller is configured to, upon receiving the first signal, control the driving component to drive the air guide plate to close the indoor air outlet;

[0036] The driving power supply is controlled to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions. The internal fan is turned on, and the air flow enters the internal air duct through the return air port, flows through the discharge electrode, carries the oxygen ions, and flows through the water absorbing component. The oxygen ions and the moisture in the water absorbing component generate hydroxyl radicals.

[0037] In some embodiments, the controller is configured to control the driving component to drive the air guide plate to close the indoor air outlet when the working time of the air conditioner reaches a first preset time;

[0038] The driving power supply is controlled to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions. The internal fan is turned on, and the air flow enters the internal air duct through the return air port, flows through the discharge electrode, carries the oxygen ions, and flows through the water absorbing component. The oxygen ions and the moisture in the water absorbing component generate hydroxyl radicals.

[0039] In some embodiments, the hydroxyl generating device further comprises:

[0040] The guide table is arranged in the internal air duct, and is arranged opposite to the return air port. After the airflow flows through the return air port, it is blown toward the guide table, and when it flows through the discharge electrode, it carries oxygen ions and flows out of the shell through the air supply port.

[0041] In some embodiments, the hydroxyl generating device further comprises:

[0042] A first mounting seat, which is arranged on the inner side wall of the shell, and is used to mount the discharge electrode so that there is a certain interval between the discharge electrode and the inner side wall of the shell;

[0043] The drainage hole is arranged on the inner side wall where the first mounting seat is mounted, so as to drain the condensed water in the shell.

[0044] The present application also includes an air conditioner, including:

[0045] An indoor housing, which is used to form the outer contour of the indoor unit;

[0046] A heat exchange air duct formed in an indoor shell;

[0047] An indoor fan is arranged in the heat exchange air duct to accelerate the air flow rate;

[0048] An indoor heat exchanger is arranged in the heat exchange air duct and is used for exchanging heat with the air flow;

[0049] A hydroxyl generating device is provided on the indoor heat exchanger, and the hydroxyl generating device comprises:

[0050] A housing having a return air port and a supply air port formed thereon;

[0051] An internal air duct is formed inside the housing and is connected to the return air port and the supply air port;

[0052] A driving power supply, which is arranged inside the housing and is used to provide power;

[0053] A discharge electrode is disposed near the internal air duct, and the discharge electrode is electrically connected to a driving power source to ionize oxygen to generate oxygen ions;

[0054] An internal fan is arranged in the internal air duct so that the air flows from the return air port through the discharge electrode and delivers the oxygen ions to the supply air port;

[0055] A water absorbing component is arranged at the air supply port, and water in the water absorbing component generates hydroxyl radicals with oxygen ions flowing through the air supply port;

[0056] The controller is configured to control the driving power supply to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and turns on the internal fan, so that the airflow enters the housing through the return air port, flows through the discharge electrode, carries the oxygen ions, flows through the water absorbing component, and the oxygen ions and the water in the water absorbing component generate hydroxyl radicals;

[0057] Under the action of the internal fan, the hydroxyl radicals leave the internal air duct with the air flow through the air supply port and diffuse along the length direction of the indoor heat exchanger;

[0058] After a period of time, the driving power supply and the internal fan are turned off, and the indoor fan is turned on to drive the hydroxyl radicals to diffuse into the room.

[0059] The indoor air first enters the housing through the return air port, then flows through the discharge electrode, which ionizes to produce oxygen ions. Then, the air carrying oxygen ions flows through the water absorption component, where water combines with oxygen ions to produce hydroxyl free radicals. The generated hydroxyl free radicals then diffuse along the length of the indoor heat exchanger, purifying the air flowing through the heat exchanger, effectively removing pollutants such as particulate matter, bacteria and viruses in the air, and improving indoor air quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0061] Figure 1 is a structural schematic diagram of an air conditioner in an embodiment of the present application;

[0062] Figure 2 is a partial structural schematic diagram of an air conditioner in an embodiment of the present application;

[0063] Figure 3 is a front view of an air conditioner in an embodiment of the present application;

[0064] Figure 4 yes Figure 3 Cross-section view at the middle AA position;

[0065] Figure 5 is a partial structural schematic diagram of an air conditioner in an embodiment of the present application;

[0066] Figure 6 is a partial structural schematic diagram of an air conditioner in an embodiment of the present application;

[0067] Figure 7 yes Figure 6 A magnified view of position A in the middle;

[0068] Figure 8 is a schematic structural diagram of a hydroxyl generating device in an embodiment of the present application;

[0069] Fig. 9 is a front view of a hydroxyl generating device in an embodiment of the present application;

[0070] Fig.10 yes Fig. 9 Cross-section view at the middle AA position;

[0071] Fig.11 is an exploded view of a hydroxyl generating device in an embodiment of the present application;

[0072] Fig.12 is another exploded view of the hydroxyl generating device in the embodiment of the present application;

[0073] Fig.13 This is the working principle of the hydroxyl generating device in the embodiment of the present application;

[0074] Fig.14 is a hardware configuration diagram of the controller in the embodiment of the present application;

[0075] Fig.15 is the control logic of the hydroxyl generating device in the embodiment of the present application;

[0076] In the above picture:

[0077] Air conditioner 100 ; controller 21 ; bus 211 ; memory 212 ; processor 213 ; communication interface 214 .

[0078] Indoor shell 1; indoor air inlet 2; indoor air outlet 3; air guide plate 4; heat exchange air duct 5;

[0079] Indoor heat exchanger 7; indoor fan 8; hydroxyl generator 9; housing 91; internal air duct 92;

[0080] Driving power supply 93; discharge electrode 94; internal fan 95; water absorption component 96; guide platform 97;

[0081] First mounting seat 98; drainage hole 99; drainage component 910; second mounting seat 911; edge tube plate 912;

[0082] Air return port 913 ; air supply port 914 ; first shell 901 ; second shell 902 . DETAILED DESCRIPTION

[0083] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0084] In the description of the present invention, it is necessary to understand that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0085] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] The present application embodiment provides an air conditioner 100, referring to Figure 1 , the air conditioner 100 includes an indoor unit.

[0087] The air conditioner 100 further includes an outdoor unit.

[0088] The outdoor unit is installed outdoors. The indoor unit and the outdoor unit are connected by pipes for the flow of refrigerant.

[0089] The indoor unit includes an indoor casing 1. The indoor casing 1 is used to form the outer contour of the indoor unit and accommodate internal components of the indoor unit.

[0090] An indoor air inlet 2 is formed on the indoor shell 1. The indoor air inlet 2 is used for indoor air to enter the indoor shell 1. The indoor air inlet 2 is provided with an air inlet grille for filtering air to prevent larger impurities from entering the heat exchange air duct 5.

[0091] An indoor air outlet 3 is formed on the indoor shell 1. The indoor air outlet 3 is used to discharge the air in the indoor shell 1. The indoor air enters the indoor shell 1 through the indoor air inlet 2 and then blows out from the indoor air outlet 3.

[0092] The indoor air outlet 3 can be extended along the length direction of the indoor unit, which improves the aesthetics of the indoor unit of the air conditioner 100 and improves the integrity of the indoor unit of the air conditioner 100. Of course, in other embodiments of the present application, the positions of the indoor air inlet 2 and the indoor air outlet 3 can also be set at other positions as long as the air inlet and outlet requirements can be met.

[0093] An air guide plate 4 is provided at the indoor air outlet 3. The air guide plate 4 is movably provided at the indoor air outlet 3, and is used to open and close the indoor air outlet 3. When the air guide plate 4 opens the indoor air outlet 3, the air guide plate 4 can also be configured to guide the heat-exchanged air discharged from the indoor unit through the indoor air outlet 3.

[0094] A plurality of components constituting a refrigeration cycle or a heating cycle are installed in the indoor casing 1 .

[0095] In the present application, the indoor unit includes but is not limited to a wall-mounted air conditioner 100, a cabinet air conditioner 100, and a duct unit.

[0096] In the embodiment of the present application, a wall-mounted air conditioner 100 is used as an example for explanation. Other types of air conditioners 100 can adjust the structural position and the installation problem of the hydroxyl generating device 9 on the basis of the technical solution of the embodiment of the present application.

[0097] In some embodiments, the indoor housing 1 is substantially in a rectangular shape.

[0098] It should be noted that the direction described in the article is based on the direction in which the user faces the indoor unit of the air conditioner 100, wherein the side of the indoor unit of the air conditioner 100 facing the user when in use is defined as the front side, the opposite side is defined as the rear side, the left and right sides are distinguished by the direction in which the user faces the indoor unit of the air conditioner 100, and the upper and lower sides of the indoor unit of the air conditioner 100 are generally defined to distinguish the up and down.

[0099] The indoor unit includes an indoor heat exchanger 7. The indoor heat exchanger 7 is installed in the indoor housing 1. The indoor heat exchanger 7 is used to exchange heat with the airflow entering the indoor housing 1. The indoor air enters the indoor housing 1 through the indoor air inlet 2, exchanges heat with the indoor heat exchanger 7, and then flows out of the indoor housing 1 through the indoor air outlet 3.

[0100] The indoor unit includes an indoor fan 8. The indoor fan 8 is installed in the indoor housing 1, and the indoor fan 8 rotates to allow indoor air to enter the indoor housing 1, and the indoor air exchanges heat with the indoor heat exchanger 7 and flows out of the indoor housing 1.

[0101] In some embodiments, the indoor fan 8 is configured as a cross-flow fan. The indoor heat exchanger 7 is disposed above the indoor fan 8 in a ring.

[0102] In some embodiments, the indoor unit includes a heat exchange air duct 5. The heat exchange air duct 5 is used to provide a channel for air flow. An indoor heat exchanger 7 and an indoor fan 8 are arranged in the heat exchange air duct 5.

[0103] In some embodiments, the air conditioner 100 system in the present application includes a compressor, which can compress the gaseous refrigerant at high temperature and high pressure and discharge the compressed gaseous refrigerant.

[0104] The compressor includes a suction port, and the refrigerant flows into the compressor from the suction port to be compressed.

[0105] The compressor includes an exhaust port. The refrigerant enters the compressor from the air intake port and is discharged from the exhaust port after being compressed by the compressor.

[0106] The air conditioner 100 system includes an indoor heat exchanger 7 for exchanging heat with indoor air.

[0107] The air conditioner 100 system includes an outdoor heat exchanger for exchanging heat with outdoor wind.

[0108] The air conditioner 100 system also includes a four-way valve. The first port of the four-way valve is connected to the exhaust port of the compressor. The second port of the four-way valve is connected to the suction port of the compressor. The third port of the four-way valve is connected to the indoor heat exchanger 7. The fourth port of the four-way valve is connected to the outdoor heat exchanger.

[0109] The air conditioner 100 system further includes an electronic expansion valve. The electronic expansion valve is disposed between the outdoor heat exchanger and the indoor heat exchanger 7. The electronic expansion valve is used for throttling. The electronic expansion valve expands the high-temperature and high-pressure liquid phase refrigerant condensed in the condenser into a low-pressure liquid phase refrigerant.

[0110] The indoor heat exchanger 7 and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger 7 functions as a condenser, the air conditioner 100 functions as a heater in a heating mode. When the indoor heat exchanger 7 functions as an evaporator, the air conditioner 100 functions as a cooler in a cooling mode.

[0111] The multi-split air conditioner 100 uses the flow of refrigerant to blow out air-conditioned air that is higher than the indoor temperature, lower than the indoor temperature, or the same as the indoor temperature to adjust the temperature and humidity of the indoor environment; or uses the rotation speed of the indoor fan 8 to adjust the air flow rate of the indoor environment.

[0112] When the air conditioner 100 is in cooling operation, the refrigerant from the compressor is condensed through the outdoor heat exchanger. The condensed refrigerant flows through the electronic expansion valve to expand. The expanded condensate evaporates through the indoor heat exchanger 7. The evaporated refrigerant then circulates back to the compressor.

[0113] When the air conditioner 100 is in heating operation, the refrigerant from the compressor flows through the indoor heat exchanger 7 to condense, and the condensed refrigerant expands by flowing through the electronic expansion valve. The expanded condensate evaporates through the outdoor heat exchanger. The evaporated refrigerant then circulates back to the compressor.

[0114] In some embodiments, reference Figure 2-4 The air conditioner 100 further includes a hydroxyl generating device 9 . The hydroxyl generating device 9 is installed on the indoor heat exchanger 7 .

[0115] In some embodiments, the hydroxyl generator 9 is installed in the heat exchange air duct 5. The hydroxyl radicals generated in the hydroxyl generator 9 can diffuse to the entire heat exchange air duct 5 along with the air flow, and can effectively decompose harmful substances in the air, such as bacteria, viruses, formaldehyde, etc., thereby improving the cleanliness of the air.

[0116] Reference Figure 3-4 The hydroxyl generating device 9 is installed on the front side of the indoor heat exchanger 7. The hydroxyl generating device 9 is installed on the front side to facilitate the installation and maintenance of the hydroxyl generating device 9.

[0117] In some embodiments, the hydroxyl generator 9 is installed in the heat exchange air duct 5. In some embodiments, the hydroxyl generator 9 is installed at the upper right position of the indoor heat exchanger 7. Because this position is close to the electric control box, it is convenient to connect the power cord.

[0118] At the same time, refer to Figure 6-7 The edge tube sheet 912912 of the indoor heat exchanger 7 is convenient for screwing, which is suitable for module installation. The edge tube sheet 912912 and the second mounting seat 911 are connected by screws.

[0119] In some embodiments, reference Figure 8 The hydroxyl generating device 9 includes a housing 91. The housing 91 forms the outer contour of the hydroxyl generating device 9, and a cavity is formed inside the housing 91 to provide physical protection and support for the internal components, thereby ensuring stable operation of the internal components.

[0120] Reference Figure 8 The housing is provided with a return air port 913 and an air supply port 914. The return air port 913 is used to inhale external air, and the air supply port 914 is used to send out the processed air, forming a continuous air cycle.

[0121] In some embodiments, the hydroxyl generating device 9 includes an internal air duct 92. The internal air duct 92 is formed inside the exterior, and is connected to the return air port 913 and the supply air port 914 to form an air circulation path. The design of the internal air duct 92 helps to evenly distribute and effectively flow the air.

[0122] In some embodiments, reference Figure 9-10 The hydroxyl generating device 9 includes a driving power source 93, which is arranged inside the housing 91 and is used to provide power to the entire hydroxyl generating device 9. Ensure that each component can work normally.

[0123] In some embodiments, the driving power source 93 may be connected to a power line in the electric control box to provide voltage for the driving power source 93 , so as to standardize the overall wiring layout of the air conditioner 100 .

[0124] In some embodiments, referring to 11-12, the hydroxyl generating device 9 includes a discharge electrode 94, which is arranged in the internal air duct 92, and the discharge electrode 94 is connected to a driving power source to ionize oxygen to generate oxygen ions. The discharge electrode 94 generates oxygen ions by ionizing oxygen. The use of the discharge electrode 94 is based on the principle of corona discharge, and oxygen molecules are decomposed into oxygen ions through a high voltage electric field to provide raw materials for generating hydroxyl free radicals.

[0125] In some embodiments, reference Figure 10-12The hydroxyl generating device 9 includes an internal fan 95, which is installed in the internal air duct 92. The internal fan 95 is driven to flow air from the return air port 913 into the internal air duct 92, carrying oxygen ions out of the housing 91 through the air supply port 914. The use of the internal fan 95 ensures effective circulation of air and sufficient distribution of oxygen ions.

[0126] In some embodiments, reference Figure 10-12 The hydroxyl generating device 9 includes a water absorbing component 96, which is installed near the air supply port 914. The water in the water absorbing component 96 generates hydroxyl radicals with the oxygen ions flowing through the air supply port 914. Hydroxyl radicals are generated by the water (usually water mist or water vapor) in contact with the oxygen ions. This process is based on the chemical reaction of the generation of hydroxyl radicals, that is, water molecules react with oxygen ions to generate hydroxyl radicals (·OH).

[0127] It should be noted that the water absorbing component 96 being installed near the air outlet 914 means that the water absorbing component 96 is installed through the air outlet 914 and partially protrudes from the surface of the housing 91 .

[0128] In some embodiments, the water absorbing component 96 is disposed at the outlet end of the discharge electrode 94 in the airflow direction so that the oxygen ions can flow with the airflow, and the oxygen ions and the water in the water absorbing component 96 generate hydroxyl radicals.

[0129] In some embodiments, reference Fig.10 , the internal fan 95 is set as an axial flow fan. Under the action of the axial flow fan, the airflow enters the internal air duct 92 of the hydroxyl generator 9, and the discharge electrode 94 located in the internal air duct 92 ionizes the passing air to generate oxygen ions. Under the action of the airflow, the oxygen ions react with the water in the water absorbing component 96 to generate hydroxyl free radicals, which are then diffused to the outside of the hydroxyl generator 9 with the airflow.

[0130] In some embodiments, the water absorbing component 96 is configured as a water absorbing carbon rod. The water absorbing carbon rod absorbs water, which can react with oxygen ions flowing through the water absorbing carbon rod to generate hydroxyl radicals.

[0131] When external air enters the hydroxyl generator 9 through the return air port 913, the discharge electrode 94 ionizes oxygen into oxygen ions by connecting a voltage. Subsequently, the airflow, driven by the internal fan 95, passes through the internal air duct 92, carrying the oxygen ions and moves toward the air supply port 914.

[0132] At the air supply port 914, the water in the water absorbing member 96 contacts with the oxygen ions, and a chemical reaction occurs to generate hydroxyl radicals. These hydroxyl radicals have extremely strong oxidizing ability and can effectively decompose harmful substances in the air, thereby achieving the purpose of purifying the air.

[0133] The purified air flows out of the housing 91 through the air supply port 914 , enters the heat exchange air duct 5 , and continues to be circulated, thereby cleaning the components in the indoor housing 1 .

[0134] In some embodiments, the purified air flows out of the housing 91 through the air outlet 914 and enters the heat exchange air duct 5 to continue to be circulated, and finally the clean air carrying hydroxyl radicals is sent back to the room to improve the indoor air quality.

[0135] Hydroxyl free radicals can react with harmful substances in the air, such as formaldehyde, benzene and other organic volatile compounds, and decompose them into harmless small molecules, such as water and carbon dioxide, thereby reducing the pollution of harmful substances to the indoor environment. Hydroxyl free radicals can also react with pollutants in the air, such as PM2.5, bacteria, viruses, etc., destroying their chemical structure, making them inactive or decomposing them into harmless substances. Hydroxyl free radicals can also react with organic substances that produce odors and decompose them, thereby removing bad odors in the room.

[0136] However, it should be noted that although hydroxyl radicals have a positive effect on indoor environmental cleaning, there are also the following problems:

[0137] Safety: Hydroxyl free radicals are highly active and may damage other substances in the indoor environment (such as furniture, decorative materials, etc.), causing problems such as material aging and fading.

[0138] Stability: Hydroxyl radicals are unstable in the air and easily react with other substances, so their existence time is short.

[0139] In summary, hydroxyl radicals can help clean the indoor environment to a certain extent, but there are also some potential problems. In practical applications, it is necessary to consider its pros and cons and take appropriate measures to ensure the cleanliness and safety of the indoor environment.

[0140] In some embodiments, the discharge electrode 94 is configured as a dielectric barrier discharge electrode 94. Referring to FIG13, when the dielectric barrier discharge electrode 94 is connected to an AC high voltage, the air can be ionized to generate plasma, wherein oxygen in the air is ionized into oxygen ions. The highly active oxygen ions react with the water absorbed by the water absorbing component 96 to generate hydroxyl groups.

[0141] Through this series of physical and chemical processes, the hydroxyl generating device 9 effectively generates and utilizes hydroxyl radicals in the heat exchange air duct 5, thereby achieving efficient purification of the air.

[0142] Compared with the hydroxyl generating device 9 in the related art, the hydroxyl generating device 9 in the present application has a generation mechanism of generating oxygen ions by ionizing air, and the oxygen ions react with water to generate hydroxyl groups.

[0143] In some embodiments, the generation of hydroxyl radicals can be qualitatively confirmed by EPR (Electron Paramagnetic Resonance) detection method.

[0144] Reference Figure 2 The indoor air enters the outer shell 91 along the return air port 913, flows through the discharge electrode 94 and the water absorbing component 96, and then carries the generated hydroxyl free radicals with the air flow through the air supply port 914 to leave the internal air duct 92 and diffuse along the length direction of the indoor heat exchanger 7.

[0145] Reference Fig.10 , the indoor air first enters the housing 91 through the return air port 913, and then flows through the discharge electrode 94, which ionizes to produce oxygen ions. Then, the air carrying the oxygen ions flows through the water absorbing component 96, and the water combines with the oxygen ions to produce hydroxyl radicals. The generated hydroxyl radicals then diffuse along the length direction of the indoor heat exchanger 7, purifying the air flowing through the heat exchanger, effectively removing pollutants such as particulate matter, bacteria and viruses in the air, and improving the indoor air quality.

[0146] In some embodiments, reference Figure 10-12 The hydroxyl generating device 9 further includes a guide platform 97, which is installed in the internal air duct 92. The guide platform 97 is arranged opposite to the return air port 913. After the air flows through the return air port 913, it is blown toward the guide platform 97, and when it flows through the discharge electrode 94, it carries oxygen ions and flows out of the housing 91 through the air supply port 914.

[0147] When the indoor air enters the internal air duct 92 through the return air port 913, it will first be blown to the air guide table 97. In this process, the air flow speed increases, and at the same time, it carries the oxygen ions generated by the discharge electrode 94. When these oxygen ions flow through the discharge electrode 94, the oxygen molecules are decomposed into oxygen ions due to ionization. Subsequently, the fast airflow carrying the oxygen ions passes through the internal air duct 92 and finally flows out of the housing 91 through the air supply port 914. This process not only improves the carrying efficiency of oxygen ions, but also ensures that the air has fully contacted the discharge electrode 94 before flowing out of the housing 91, thereby enhancing the air purification effect.

[0148] Through the design and layout of the guide platform 97, the hydroxyl generating device 9 can more efficiently introduce oxygen ions into the indoor air, thereby playing an important role in the air purification process.

[0149] At the same time, the guide platform 97 is thicker than other positions of the internal air duct 92, which directly causes it to be less affected by the external temperature difference, thereby reducing the risk of condensation.

[0150] In some embodiments, the guide platform 97 is disposed opposite to the return air outlet 913, and the guide platform 97 forms an arc surface along the internal air duct 92. In some embodiments, the distance between the guide end surface of the guide platform 97 and the end surface of the housing 91 away from the return air outlet 913 decreases from the side away from the air supply outlet 914 to the side close to the air supply outlet 914.

[0151] In the above embodiment, the internal air duct 92 is used to connect the return air outlet 913 and the air supply outlet 914 to form an air circulation channel. The guide platform 97 is arranged in the internal air duct 92, and it corresponds to the return air outlet 913. The guide platform 97 forms an arc surface along the internal air duct 92, and the design of this arc surface is to guide the flow direction of the air.

[0152] The distance between the guide end surface of the guide platform 97 and the end surface of the housing 91 away from the return air port 913 gradually decreases from the side away from the air supply port 914 to the side close to the air supply port 914. The purpose of this design is to increase the flow speed of air in the internal air duct 92, reduce the influence of the external temperature on the temperature of the air flow in the internal air duct 92, and reduce the risk of condensation.

[0153] In the present application, the hydroxyl generator 9 is applied to the air conditioner 100. When the hydroxyl generator 9 is installed close to the indoor heat exchanger 7, since the air conditioner 100 is in cooling mode, the temperature of the indoor heat exchanger 7 is very low, and the temperature of the outer shell 91 of the hydroxyl generator 9 close to the indoor heat exchanger 7 is also affected and reduced, resulting in a decrease in the surface temperature of the internal air duct 92. When the airflow passes through the internal air duct 92 of the hydroxyl generator 9, there is a risk of condensation forming in the internal air duct 92 due to the low temperature. The formation of condensation will bring a series of safety risks and easily cause a short circuit.

[0154] In some embodiments, when the airflow enters the internal air duct 92 of the hydroxyl generating device 9, it first directly blows the guide end surface of the guide platform 97. Since the guide platform 97 is thicker than other positions of the internal air duct 92, the position of the guide platform 97 is less affected by the external temperature difference, thereby reducing the risk of condensation.

[0155] It is mentioned above that when used in some scenarios, the internal air duct 92 of the hydroxyl generating device 9 has the risk of condensation, and the direct safety hazard caused by the condensation is the short circuit of the discharge electrode 94.

[0156] To solve the problem of short circuit of discharge electrode 94 due to condensed water. Figure 11-12 The hydroxyl generating device 9 further includes a first mounting seat 98, which is disposed on the inner side wall of the housing 91. The first mounting seat 98 is used to mount the discharge electrode 94 so that there is a certain interval between the discharge electrode 94 and the inner side wall of the housing 91. This ensures that even if some condensed water exists, the discharge electrode 94 will not be short-circuited.

[0157] By providing the first mounting seat 98 , the discharge electrode 94 can be accurately positioned and mounted while maintaining an appropriate distance from the inner wall of the housing 91 , thereby ensuring efficient operation and safe operation of the device.

[0158] To solve the problem of short circuit of discharge electrode 94 due to condensed water. Fig.11 The hydroxyl generating device 9 includes a plurality of drain holes 99, which are provided on the housing 91 and are used to discharge the condensed water inside the housing 91. The main function of the drain holes 99 is to effectively discharge the condensed water generated inside the housing 91. In some embodiments, the drain holes 99 are provided at multiple positions of the housing 91 to ensure that the condensed water can be quickly discharged under different installation modes of the discharge electrode 94.

[0159] In some embodiments, reference Fig.11 The hydroxyl generating device 9 further includes a flow guide component 910. Its function is to guide the blown air flow to achieve the effect of longer-distance air delivery, thereby achieving longer-distance and larger-range delivery of hydroxyl free radicals.

[0160] In some embodiments, the flow guide component 910 is installed at the air outlet 914 and is placed outside the housing 91. The airflow of the air outlet 914 diffuses along the end surface of the flow guide component 910. When air flows through the air outlet 914, the airflow diffuses along the end surface of the flow guide component 910, thereby achieving a specific airflow distribution effect. The diffusion range can also be expanded.

[0161] In some embodiments, the air conditioner 100 includes an electric control box (not shown in the figure), which is arranged on one side of the indoor housing 1; and an external power supply, which is arranged in the electric control box, and the external power supply is connected to the driving power supply 93 and the internal fan 95. The external power supply is connected to the driving power supply 93 and the internal fan 95 respectively, so as to provide them with the required power support to ensure the normal operation of the air conditioner 100.

[0162] Such a design and configuration enables the hydroxyl generating device 9 and the air conditioner 100 to perform their respective functions more efficiently and stably, thus bringing a better user experience.

[0163] In some embodiments, reference Fig.11 The housing 91 includes a first shell 901 and a second shell 902 . The first shell 901 is installed on the indoor heat exchanger 7 . The second shell 902 and the first shell 901 are detachably connected. The second shell 902 is provided with a return air port 913 and a supply air port 914 .

[0164] The first shell 901 is firmly mounted on the indoor heat exchanger 7 to support and protect the entire outer shell 91 .

[0165] The second housing 902 is designed to be detachably connected to the first housing 901, which is convenient for maintenance and replacement. The second housing 902 is specially provided with a return air vent 913 and an air supply vent 914, which are important components of the air conditioning system and are responsible for sucking in the indoor air and sending it out after processing, so as to realize the circulation and regulation of the indoor air.

[0166] In some embodiments, a plurality of protrusions are provided on the first housing 901. A groove corresponding to the protrusions is provided on the second housing 902. The grooves and the protrusions cooperate with each other to make the first housing 901 and the second housing 902 detachably connected.

[0167] In some embodiments, reference Fig.12 The hydroxyl generating device 9 includes a second mounting seat 911, which is arranged on the first shell 901, and the outer shell 91 is mounted on the indoor heat exchanger 7 through the second mounting seat 911. The second mounting seat 911 is precisely arranged at an appropriate position of the first shell 901, and through the second mounting seat 911, the outer shell 91 can be stably mounted on the indoor heat exchanger 7, ensuring the stability and safety of the entire system.

[0168] In some embodiments, the second mounting seat 911 is mounted on the edge tube plate 912 by screws to achieve fixed installation of the hydroxyl generating device 9 .

[0169] In some embodiments, reference Fig.11 The water absorbing components 96 are provided with at least two, and the water absorbing components 96 are arranged at intervals. It can ensure that the whole system has efficient and uniform water absorbing performance.

[0170] In some embodiments, the water absorbing component 96 can be configured as sponge, fiber, activated carbon or other materials with high water absorption capacity. The key is that they can effectively absorb water while allowing the water to react with oxygen ions.

[0171] Each water absorbing component 96 is kept at a certain distance from each other, so that the water can be evenly distributed in the system to avoid local over-wetting or drying. This arrangement helps to improve the overall efficiency of the system and ensure that the water is fully absorbed and utilized.

[0172] In the embodiment of the present disclosure, the wind resistance and condensation can be reduced by providing the guide platform 97, and the condensed water can be quickly discharged by providing the drainage hole 99. The efficiency and safety of the hydroxyl generating device 9 are ensured. The internal fan 95 and the drainage component 910 are provided to ensure that the hydroxyl radicals can be transported over a longer distance and a larger range, which can improve the purification efficiency.

[0173] On the one hand, the technical solution in this application innovates in the mechanism of occurrence, achieving hydroxyl generation that is different from the existing solution. On the other hand, in the process of module structure design, through optimized design, the module wind resistance and condensation risk are reduced, the diffusion distance and range of hydroxyl radicals are increased, and the purification effect is improved.

[0174] In some embodiments, the air conditioner 100 includes a controller 21 for sending instructions to the air conditioner 100 to control the working process of the air conditioner 100 .

[0175] The controller 21 is used to coordinate the operation of the entire air conditioner 100, including receiving user instructions, operating in cooling mode, heating mode, blowing mode, shutdown mode, cleaning mode, self-cleaning mode, etc., and uploading the working status of the air conditioner 100 to the cloud.

[0176] The controller 21 includes a memory 212. The memory 212 may include a high-speed random access memory 212 (RAM) or a non-volatile memory 212 (NVM).

[0177] For example, at least one disk storage 212. The storage 212 is used to store programs.

[0178] Reference Fig.14 , the indoor controller 21 includes a communication interface 214. The communication interface 214 is used to achieve communication with related components.

[0179] The communication interface of the controller 21 is used to communicate with the driving power supply 93, the internal fan 95, and the indoor fan 8. After receiving the corresponding electric control signal, different components can be controlled to perform corresponding actions. For example, when the air conditioner self-cleaning signal is received, the hydroxyl generating device 9 is controlled to act.

[0180] In some embodiments, the controller 21 is disposed in an electrical control box.

[0181] The controller 21 includes a processor 213. The processor 213 is used to execute executable modules stored in the memory 212, such as computer programs. The code of the computer program can be in source code form, object code form, executable file or some form thereof.

[0182] The controller 21 includes a bus 211. The bus 211 is used to connect the communication interface 214 and the processor 213. The bus 211 can be an ISA bus 211, a PCI bus 211, or an EISA bus 211.

[0183] The controller 21 includes at least one software function module which can be stored in the memory 212 in the form of software or firmware.

[0184] In this application, after receiving the execution instruction, the processor 213 executes the program to implement Fig.15 The relevant control logic of the hydroxyl generating device 9 shown in FIG.

[0185] In some embodiments, the controller 21 is configured to control the driving power supply 93 to provide electrical energy to the discharge electrode 94 so that the discharge electrode 94 ionizes oxygen in the air to generate oxygen ions.

[0186] In some embodiments, the internal fan 95 is turned on, and the air flows through the return air port 913 into the internal air duct 92 , flows through the discharge electrode 94 , carries oxygen ions, and flows through the water absorbing component 96 , and the oxygen ions and the moisture in the water absorbing component 96 generate hydroxyl radicals.

[0187] In some embodiments, the ionization process of the discharge electrode 94 can work together with the operation of the internal fan 95. This means that when the internal fan 95 starts to operate, it can not only provide air flow, but also assist the discharge electrode 94 in generating ions. This synergistic effect can improve the ionization efficiency and enable the ions to be more evenly distributed in the air.

[0188] In some embodiments, the discharge electrode 94 is first ionized to generate oxygen ions, and then the internal fan 95 is used to promote the flow of oxygen ions. This means that after the ionization process is completed, the internal fan 95 is started to push the oxygen ions to move in the air. This ensures that the oxygen ions can be more widely distributed, thereby increasing their impact on the environment.

[0189] In some embodiments, the internal fan 95 may be used to drive the airflow first, and then the discharge electrode 94 may be used to generate oxygen ions. This means that after the airflow starts to flow, the discharge electrode 94 is activated to generate oxygen ions. This method can ensure that the oxygen ions are evenly distributed in the airflow, thereby improving its impact on the environment.

[0190] In some embodiments, reference Figure 2 Under the action of the internal fan 95 , the hydroxyl radicals follow the air flow through the air supply port 914 and leave the internal air duct 92 and diffuse along the length direction of the indoor heat exchanger 7 .

[0191] In some embodiments, after a period of time, the indoor fan 8 is turned on, referring to Figure 5 , the indoor fan 8 runs, driving the hydroxyl radicals to diffuse inside the heat exchange air duct 5.

[0192] Through the above steps, refer to Figure 2 , Figure 5Under the action of the internal fan 95, the released hydroxyl radicals diffuse laterally along the air conditioner 100, and can cover all the lateral parts and positions. The indoor fan 8 is used to diffuse the hydroxyl radicals inside the heat exchange air duct 5, and act on the indoor fan 8 and other parts in the heat exchange air duct 5. The hydroxyl radicals are diffused quickly and comprehensively inside the air conditioner 100, and can act on various parts inside the air conditioner 100.

[0193] In some embodiments, the air conditioner 100 further includes a driving component, which is connected to the air guide plate 4 to open or close the air guide plate 4.

[0194] In some embodiments, the controller 21 is configured to drive the driving component to close the air guide plate 4 before the discharge electrode 94 ionizes oxygen to generate oxygen ions.

[0195] The purpose of this process is to ensure that a closed or semi-closed space is formed in the specific area where the ionized oxygen produces oxygen ions. By closing the air guide plate 4, the air flow can be controlled to make the ionization process more concentrated and efficient. This can improve the ionization efficiency. The closed or semi-closed space helps to reduce the loss of oxygen, making the ionization process more concentrated, thereby improving the efficiency of oxygen ion generation.

[0196] The ion distribution can also be controlled: by adjusting the position and closing state of the air guide plate 4, the distribution range of the oxygen ions can be accurately controlled to ensure that they are evenly distributed in the required area, such as the indoor shell 1.

[0197] Closing the air guide plate 4 can also reduce energy consumption. Carrying out the ionization process in a closed space can reduce unnecessary energy loss because the exchange of external air is reduced, thereby reducing the energy consumption of the system to a certain extent.

[0198] Closing the air guide plate 4 can also optimize system performance. By optimizing the environmental conditions of the ionization process, the performance of the entire system, such as air purification efficiency, disinfection effect, etc., can be improved.

[0199] After closing the air guide plate 4, the discharge electrode 94 starts to work, ionizing oxygen through discharge to produce a large number of oxygen ions. These oxygen ions then diffuse in a specific area to play their role in purifying, disinfecting or enhancing air quality. The orderly execution of the whole process ensures the efficient operation of the system and the achievement of the goal.

[0200] In some embodiments, the controller 21 is configured to turn off the indoor fan 8 after the indoor fan 8 has been operating for a period of time to allow the hydroxyl radicals and pollutants to fully react.

[0201] After the indoor fan 8 continues to work for a period of time to circulate the air and promote the uniform distribution of the hydroxyl radicals, the indoor fan 8 is turned off. This is done to provide a relatively static environment so that the hydroxyl radicals have enough time to fully react with the pollutants in the air.

[0202] Here is a detailed explanation of this step:

[0203] Working stage of indoor fan 8: When indoor fan 8 is turned on, it continuously circulates the air in indoor housing 1, so that hydroxyl radicals can be evenly distributed in the whole space. Hydroxyl radicals are a strong oxidant that can react with a variety of pollutants, such as harmful gases such as formaldehyde and benzene, as well as microorganisms such as bacteria and viruses.

[0204] Turn off the indoor fan 8: After a period of operation of the indoor fan 8, the hydroxyl radicals in the air have been fully mixed with the pollutants. At this time, turning off the indoor fan 8 can stop the circulation of air, so that the hydroxyl radicals and pollutants can undergo a deeper chemical reaction in the local area.

[0205] Full reaction stage: after the indoor fan 8 is turned off, the reaction between the hydroxyl radicals and the pollutants will not be interrupted by the flow of air, which can ensure a more complete reaction. This full reaction helps to reduce the concentration of pollutants and improve the indoor air quality.

[0206] It should be noted that after the indoor fan 8 is turned off, a certain amount of time is required for the hydroxyl radicals to fully react with the pollutants. This time may vary depending on factors such as the type and concentration of the pollutants, the concentration of the hydroxyl radicals, and the indoor environmental conditions.

[0207] In some embodiments, the controller 21 is configured so that the hydroxyl generating device 9 and the indoor fan 8 work in an alternating cycle to circulate and purify the indoor shell 1 .

[0208] The alternating cycle of the hydroxyl generating device 9 and the indoor fan 8 means that in one working cycle, the hydroxyl generating device 9 is first operated alone for a period of time, and then the device is turned off and the indoor fan 8 is turned on for air circulation. Such a cycle can be repeated to achieve the best purification effect.

[0209] According to the type and concentration of indoor pollutants, as well as the generation rate of hydroxyl radicals, the appropriate working cycle can be set.

[0210] By working in a periodic alternating manner, continuous purification of indoor air can be ensured, while avoiding the reduction in efficiency or increase in energy consumption that may be caused by running a single device for a long time.

[0211] Through the above-mentioned alternating cycle working mode, the air in the indoor housing 1 is effectively purified. This cycle purification can not only remove harmful gases and microorganisms inside the air conditioner 100 and indoors, but also improve the indoor air quality, providing a healthy and comfortable living environment for the occupants.

[0212] Through the synergistic effect of the hydroxyl generator 9 and the indoor fan 8, the circulation purification system of the indoor shell 1 can efficiently remove various pollutants.

[0213] Reference Fig.15 , illustrating the control logic of the hydroxyl generating device 9 in the embodiment of the present application.

[0214] When the air conditioner 100 is in the off state, the air guide plate 4 of the indoor air outlet 3 is closed (S101).

[0215] The hydroxyl generating device 9 is started (S102). Specifically, the discharge electrode 94 ionizes oxygen to generate oxygen ions. Under the action of the internal fan 95, the airflow enters the housing 91 through the return air port 913, carries the oxygen ions, flows through the air supply port 914, and reacts with the water in the water absorbing component 96 to generate hydroxyl free radicals. The oxygen ions are diffused to the outside of the housing 91 under the action of the internal fan 95.

[0216] Under the action of the internal fan 95, the released hydroxyl radicals follow the air flow through the air supply port 914 and leave the internal air duct 92, and then diffuse laterally along the indoor heat exchanger 7, covering all lateral parts and locations.

[0217] Determine whether the operation time of the hydroxyl generating device 9 reaches the first operation time T0 (S103);

[0218] In step S103, if the first operation time is reached, step S104 is executed to turn off the hydroxyl generating device 9. It is determined that hydroxyl radicals have been released and accumulated in the indoor heat exchanger 7 at this time.

[0219] In step S103, if the first running time has not been reached, then execute S103;

[0220] After executing step S104, step S105 is executed, and the indoor fan 8 runs at a first speed; as the indoor fan 8 rotates, hydroxyl radicals diffuse inside the heat exchange duct 5 to act on various components in the heat exchange duct 5 such as the indoor heat exchanger 7 and the indoor fan 8.

[0221] Determine whether the operation time of the indoor fan 8 reaches the second operation time (S106);

[0222] In step S106, if the second running time has not been reached, step S106 is executed;

[0223] In step S106, if the second operating time is reached, step S107 is executed to turn off the indoor fan 8.

[0224] After the third operation time (S108) is left to stand, S102 to S108 are executed cyclically. The standing process allows the hydroxyl radicals and pollutants to fully react, thereby improving the purification efficiency.

[0225] S102 to S108 are defined as a purification process. In some embodiments, the purification process is repeated N times. In some disclosed embodiments, the purification process is performed twice.

[0226] In some embodiments, after the air guide plate 4 is closed after the air conditioner 100 is turned off, the air conditioner 100 can be automatically started or the air conditioner 100 internal purification mode can be selected autonomously according to the program setting. The air conditioner 100 internal purification mode can be selected autonomously by the user sending a cleaning instruction through the remote control, and the controller 21 drives the corresponding components to work after receiving the electrical signal.

[0227] In some embodiments, the controller 21 is configured to, upon receiving the first signal, control the driving component to drive the air guide plate 4 to close the indoor air outlet 3 .

[0228] The driving power supply 93 is controlled to provide electric energy to the discharge electrode 94 so that the discharge electrode 94 ionizes oxygen in the air to generate oxygen ions, and the internal fan 95 is turned on. The airflow enters the internal air duct 92 through the return air port 913, flows through the discharge electrode 94, carries the oxygen ions, and flows through the water absorbing component 96. The oxygen ions and the moisture in the water absorbing component 96 generate hydroxyl radicals.

[0229] In some embodiments, when the working time of the air conditioner 100 reaches a first preset time, the control driving component drives the air guide plate 4 to close the indoor air outlet 3.

[0230] The driving power supply 93 is controlled to provide electric energy to the discharge electrode 94 so that the discharge electrode 94 ionizes oxygen in the air to generate oxygen ions, and the internal fan 95 is turned on. The airflow enters the internal air duct 92 through the return air port 913, flows through the discharge electrode 94, carries the oxygen ions, and flows through the water absorbing component 96. The oxygen ions and the moisture in the water absorbing component 96 generate hydroxyl radicals.

[0231] In summary, the air conditioner internal purification mode involved in the present application adopts the post-shutdown purification method. On the one hand, this does not affect the user's use of the air conditioner. The purification mode is preferably designed to be an automatic operation mode, that is, the air conditioner internal purification is automatically started after the user shuts down the air conditioner; on the other hand, from the analysis of the causes of internal pollution of the air conditioner, dust, bacteria, mold, odor components, etc. accumulate inside the air conditioner during the operation of the air conditioner, especially in the cooling mode, there is condensed water inside the air conditioner, which is more likely to cause pollutant accumulation and bacterial and mold growth. Purification after shutdown can more thoroughly perform comprehensive internal purification to ensure that pollution-free airflow is blown out when the air conditioner is turned on again.

[0232] The air conditioner's internal purification mode is designed to have the module run for a certain period of time first to allow the purification factors to fully diffuse and accumulate horizontally, and then start the air conditioner fan for vertical diffusion, ensuring that all parts of the air conditioner can be purified.

[0233] Of course, the hydroxyl generating device 9 designed in the present application can also be used to clean the indoor environment.

[0234] In some embodiments, the controller 21 is configured to control the driving component to drive the air guide plate 4 to open the indoor air outlet 3;

[0235] The driving power source 93 is controlled to provide electric energy to the discharge electrode 94, so that the discharge electrode 94 ionizes oxygen in the air to generate oxygen ions, and the internal fan 95 is turned on. The airflow enters the internal air duct 92 through the return air port 913, flows through the discharge electrode 94, carries the oxygen ions, and flows through the water absorbing component 96. The oxygen ions and the water in the water absorbing component 96 generate hydroxyl radicals.

[0236] Under the action of the internal fan 95, the hydroxyl radicals follow the air flow through the air supply port 914 and leave the internal air duct 92 and diffuse along the length direction of the indoor heat exchanger 7;

[0237] After a period of time, the indoor fan 8 is turned on, and the indoor wind enters the indoor housing 1 from the indoor air inlet 2, carrying hydroxyl radicals and diffusing into the room through the indoor air outlet 3.

[0238] In the above embodiment, the hydroxyl radical generating device 9 keeps working after the indoor fan 8 is turned on to ensure the sufficiency of hydroxyl radicals in the whole purification process.

[0239] In some embodiments, the controller 21 is configured to open the air guide plate 4, control the driving power supply 93 to provide electric energy to the discharge electrode 94, so that the discharge electrode 94 ionizes oxygen in the air to generate oxygen ions, and turn on the internal fan 95, so that the airflow enters the internal air duct 92 through the return air port 913, flows through the discharge electrode 94, carries the oxygen ions, flows through the water absorbing component 96, and the oxygen ions and the water in the water absorbing component 96 generate hydroxyl radicals;

[0240] Under the action of the internal fan 95, the hydroxyl radicals follow the air flow through the air supply port 914 and leave the internal air duct 92 and diffuse along the length direction of the indoor heat exchanger 7;

[0241] After a period of time, the driving power supply 93 and the internal fan 95 are turned off, and the indoor fan 8 is turned on to drive the hydroxyl radicals to diffuse into the room.

[0242] By driving the power supply 93, the internal fan 95 and the indoor fan 8 in a periodic alternating manner, continuous purification of the indoor air can be ensured while avoiding the reduction in efficiency or increase in energy consumption that may be caused by long-term operation of a single device.

[0243] Through the above-mentioned alternating cycle working mode, the air in the indoor housing 1 is effectively purified. This cycle purification can not only remove harmful gases and microorganisms inside the air conditioner 100 and indoors, but also improve the indoor air quality and provide a healthy and comfortable living environment for the occupants. Through the synergistic effect of the hydroxyl generator 9 and the indoor fan 8, the cycle purification system of the indoor housing 1 can efficiently remove various pollutants.

[0244] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0245] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. An air conditioner, characterized in that: include: An indoor housing, which is used to form the outer contour of the indoor unit; A heat exchange air duct formed in the indoor shell; An indoor fan, which is arranged in the heat exchange air duct and is used to accelerate the air flow rate; An indoor heat exchanger, which is arranged in the heat exchange air duct and is used for exchanging heat with the air flow; A hydroxyl generating device is provided on the indoor heat exchanger, and the hydroxyl generating device comprises: A housing having a return air port and an air supply port formed thereon; An internal air duct formed inside the housing, the internal air duct being in communication with the return air port and the supply air port; A driving power supply, which is arranged inside the housing and is used to provide power; A discharge electrode, which is disposed in the internal air duct, and the discharge electrode is electrically connected to the driving power supply to ionize oxygen to generate oxygen ions; An internal fan, which is arranged in the internal air duct, so that the airflow flows from the return air port through the discharge electrode to deliver the oxygen ions to the air supply port; A water absorbing component, which is arranged near the air supply port, and the water in the water absorbing component generates hydroxyl radicals with the oxygen ions flowing through the air supply port; The controller is configured to control the driving power supply to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and turn on the internal fan so that the airflow enters the internal air duct through the return air port, flows through the discharge electrode, carries oxygen ions, and flows through the water absorbing component, and the oxygen ions and the moisture in the water absorbing component generate hydroxyl radicals; the hydroxyl radicals diffuse along the length direction of the indoor heat exchanger after leaving the internal air duct through the air supply port with the airflow; After a period of time, the indoor fan is turned on to drive the hydroxyl radicals to diffuse inside the heat exchange air duct.

2. The air conditioner according to claim 1, characterized in that: Also includes: An air guide plate, which is arranged at the indoor air outlet; A driving component connected to the air guide plate to open or close the indoor air outlet; The controller is configured to drive the driving component to drive the air guide plate to close the indoor air outlet before the discharge electrode ionizes oxygen to generate oxygen ions.

3. The air conditioner according to claim 1, characterized in that: The controller is configured to turn off the indoor fan after the indoor fan has been operating for a period of time.

4. The air conditioner according to claim 3, characterized in that: The controller is configured so that the hydroxyl generating device and the indoor fan work in an alternating cycle to circulate and purify the interior of the heat exchange air duct.

5. The air conditioner according to claim 1, characterized in that: Also includes: An air guide plate, which is arranged at the indoor air outlet; A driving component connected to the air guide plate to open or close the indoor air outlet; The controller is configured to control the driving component to drive the air guide plate to open the indoor air outlet; Controlling the driving power supply to provide electric energy to the discharge electrode, so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, turning on the internal fan, allowing the airflow to enter the internal air duct through the return air port, flow through the discharge electrode, carry oxygen ions, flow through the water absorbing component, and the oxygen ions and the water in the water absorbing component generate hydroxyl radicals; Under the action of the internal fan, the hydroxyl radicals follow the air flow through the air supply port and leave the internal air duct and diffuse along the length direction of the indoor heat exchanger; After a period of time, the indoor fan is turned on, and the indoor wind enters the indoor shell from the indoor air inlet, carrying the hydroxyl free radicals and diffusing into the room through the indoor air outlet.

6. The air conditioner according to claim 2, characterized in that: The controller is configured to, upon receiving the first signal, control the driving component to drive the air guide plate to close the indoor air outlet; The driving power supply is controlled to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and the internal fan is turned on. The airflow enters the internal air duct through the return air port, flows through the discharge electrode, carries the oxygen ions, and flows through the water absorbing component. The oxygen ions and the moisture in the water absorbing component generate hydroxyl radicals.

7. The air conditioner according to claim 2, characterized in that: The controller is configured to control the driving component to drive the air guide plate to close the indoor air outlet when the working time of the air conditioner reaches a first preset time; The driving power supply is controlled to provide electrical energy to the discharge electrode output, so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and the internal fan is turned on. The airflow enters the internal air duct through the return air port, flows through the discharge electrode, carries the oxygen ions, and flows through the water absorbing component. The oxygen ions and the moisture in the water absorbing component generate hydroxyl radicals.

8. The air conditioner according to claim 1, characterized in that: The hydroxyl generating device also includes: A guide table is arranged in the internal air duct, and the guide table is arranged opposite to the return air port; after the air flow passes through the return air port, it blows toward the guide table, and when it flows through the discharge electrode, it carries oxygen ions and flows out of the shell through the air supply port.

9. The air conditioner according to claim 1, characterized in that: The hydroxyl generating device further comprises: a first mounting seat, which is arranged on the inner side wall of the shell, and the first mounting seat is used to mount the discharge electrode so that there is a certain interval between the discharge electrode and the inner side wall of the shell; A drainage hole is provided on the inner side wall of the first mounting seat to drain condensed water in the housing.

10. An air conditioner, characterized in that: include: An indoor housing, which is used to form the outer contour of the indoor unit; A heat exchange air duct formed in the indoor shell; An indoor fan, which is arranged in the heat exchange air duct and is used to accelerate the air flow rate; An indoor heat exchanger, which is arranged in the heat exchange air duct and is used for exchanging heat with the air flow; A hydroxyl generating device is provided on the indoor heat exchanger, and the hydroxyl generating device comprises: A housing having a return air port and an air supply port formed thereon; An internal air duct formed inside the housing, the internal air duct being in communication with the return air port and the supply air port; A driving power supply, which is arranged inside the housing and is used to provide power; A discharge electrode, which is disposed near the internal air duct, and the discharge electrode is electrically connected to the driving power supply to ionize oxygen to generate oxygen ions; An internal fan, which is arranged in the internal air duct, so that the airflow flows from the return air port through the discharge electrode to deliver the oxygen ions to the air supply port; A water absorbing component, which is arranged at the air supply port, and the water in the water absorbing component generates hydroxyl radicals with the oxygen ions flowing through the air supply port; The controller is configured to control the driving power supply to provide electric energy to the discharge electrode so that the discharge electrode ionizes oxygen in the air to generate oxygen ions, and turn on the internal fan, so that the airflow enters the housing through the return air port, flows through the discharge electrode, carries the oxygen ions, flows through the water absorbing component, and the oxygen ions and the water in the water absorbing component generate hydroxyl radicals; Under the action of the internal fan, the hydroxyl radicals follow the air flow through the air supply port and leave the internal air duct and diffuse along the length direction of the indoor heat exchanger; After a period of time, the driving power supply and the internal fan are turned off, and the indoor fan is turned on to drive the hydroxyl radicals to diffuse into the room.

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