Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit which comprises a machine shell, a heat exchanger and a heat exchanger. A heat exchange cavity is formed in the machine shell. The air inlet is formed in the machine shell, and the air inlet communicates with the heat exchange cavity; the air outlet is formed in the machine shell and communicates with the heat exchange cavity; the heat exchanger is arranged in the heat exchange cavity; the fan is arranged in the heat exchange cavity; the power supply module is electrically connected with an external power supply; the air purification device is arranged in the air inlet; the air purification device comprises a frame body, and an installation space is formed in the frame body. The catalysis assembly is arranged in the frame body; the catalytic assembly comprises a catalytic electrode, a catalytic material is formed on the catalytic electrode, and the catalytic material is used for decomposing volatile organic compounds; the coating layer coats at least part of the outer surface of the catalytic electrode, and the coating layer is used for reducing heat conduction between the catalytic electrode and indoor air; and the electric connecting piece is connected to the catalytic electrode and the power supply module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to an indoor unit of an air conditioner. BACKGROUND

[0002] With the significant improvement of the quality of modern social life, people's attention to air quality is increasing. Air quality is not only related to the comfort of living environment, but also directly related to human health.

[0003] For the removal of volatile organic compounds (VOCs), the methods commonly used in the industry include adsorption filtration, ozone oxidation, ionization, photocatalysis, etc. Although these methods can reduce the concentration of VOCs to some extent, the effect is not ideal, and it is easy to cause secondary pollution problems. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application disclose an indoor unit of an air conditioner, which can effectively remove volatile organic compounds in indoor air.

[0005] In order to achieve the above purpose, the embodiments of the present application disclose an indoor unit of an air conditioner, which comprises:

[0006] A cabinet is formed with a heat exchange cavity inside the cabinet;

[0007] An air inlet is arranged in the cabinet, and the air inlet is in communication with the heat exchange cavity;

[0008] An air outlet is arranged in the cabinet, and the air outlet is in communication with the heat exchange cavity;

[0009] A heat exchanger is arranged in the heat exchange cavity;

[0010] A fan is arranged in the heat exchange cavity, and the fan can guide indoor air from the air inlet to the heat exchange cavity, and after heat exchange by the indoor heat exchanger, the indoor air flows out from the air outlet;

[0011] A power module is electrically connected with an external power supply;

[0012] An air purification device is arranged at the air inlet;

[0013] The air purification device comprises:

[0014] A frame body has a mounting space inside the frame body;

[0015] A catalytic assembly is arranged inside the frame body;

[0016] The catalytic assembly comprises:

[0017] A catalytic electrode is formed with a catalytic material, and the catalytic material is used for decomposing volatile organic compounds;

[0018] a coating layer, the coating layer coating at least a portion of the outer surface of the catalytic electrode, the coating layer being used to reduce heat conduction between the catalytic electrode and indoor air;

[0019] The electrical connector is connected to the catalytic electrode and the power module.

[0020] Thus, the air inlet of the air-conditioning indoor unit provided in the embodiment of the present application is provided with an air purification device, and the catalytic component of the air purification device includes a catalytic electrode and a coating layer. The catalytic electrode can be directly energized to generate an electrothermal effect, so that the catalytic material integrated with the catalytic electrode can catalytically oxidize volatile organic compounds at an ideal catalytic temperature and convert them into harmless substances. The method of removing volatile organic compounds is highly safe. At the same time, since the heat generated by the catalytic electrode under the electrothermal effect is used to directly cause the catalytic material to reach the catalytic temperature, the catalytic electrode can reach the catalytic temperature at a lower voltage, thereby improving the catalytic efficiency of the air-conditioning purification device. The coating layer with a heat-insulating effect can prevent the heat of the catalytic electrode from being dissipated, and reduce the impact of the higher temperature of the catalytic electrode on the ambient temperature, further improving the energy efficiency of the air-conditioning indoor unit.

[0021] The present application also provides an air conditioner indoor unit, comprising:

[0022] a casing, wherein a heat exchange cavity is formed in the casing;

[0023] An air inlet is provided on the casing and is in communication with the heat exchange cavity;

[0024] An air outlet is provided on the housing and is connected to the heat exchange cavity;

[0025] A heat exchanger is disposed in the heat exchange cavity;

[0026] The fan is arranged in the heat exchange chamber, and can guide the indoor air from the air inlet and the air purification device to the heat exchange chamber, and after the indoor air is heated by the indoor heat exchanger, it flows into the room through the air outlet;

[0027] A power module, the power module is electrically connected to an external power source;

[0028] An air purification device is provided at the air inlet;

[0029] Air purification devices include:

[0030] A frame body, wherein the frame body has an installation space;

[0031] The catalytic component is arranged inside the frame;

[0032] The catalytic components include:

[0033] A catalytic electrode having a catalytic material formed thereon, the catalytic material being used to decompose volatile organic compounds;

[0034] A coating layer, the coating layer covers at least a portion of the outer surface of the catalytic electrode, and the coating layer can adsorb volatile organic compounds;

[0035] The electrical connector is connected to the catalytic electrode and the power module.

[0036] In a possible implementation, a plurality of adsorption holes are formed in the coating layer.

[0037] In this way, a plurality of adsorption pores are formed in the coating layer. The coating layer has abundant adsorption pores, which can be micro- / nano-scale pores, to allow gaseous pollutants (bacteria, viruses, volatile organic compounds, etc.) to pass through and adsorb volatile organic compounds and other harmful substances in the indoor air.

[0038] In a possible implementation, there are multiple catalytic assemblies, which are arranged at intervals along the first direction, and an air passage is formed between two adjacent catalytic assemblies, and the air passage is connected to the heat exchange cavity.

[0039] In this way, the surface of the catalytic component can be parallel to the airflow direction of the indoor air entering from the air inlet, so as to improve the air flow efficiency and also increase the contact area between the catalytic component and the volatile organic compounds.

[0040] In a possible implementation, along the first direction, the distance between two adjacent catalytic electrodes is L1, and L1 satisfies: L1>2 mm, L1<50 mm.

[0041] In this way, L1 > 2mm allows for a certain spacing between the multiple catalytic components. This spacing L1 allows indoor air to flow more smoothly through the air passages formed between the catalytic components, reducing the diffusion resistance of the gas between the multiple catalytic components, thereby improving the catalytic conversion efficiency of volatile organic compounds in the indoor air. L1 < 50mm ensures the compactness and integration of the multiple catalytic components while maintaining good gas flow within the air passages and the catalytic oxidation efficiency of volatile organic compounds.

[0042] In one possible implementation, the electrical connector extends along a first direction, and is formed with a plurality of mounting portions spaced apart along the first direction. The mounting portions are hollowed out in the electrical connector, and are used to plug into the catalytic assembly.

[0043] A relief portion is formed on the covering layer, and the relief portion corresponds to the mounting portion so that the electrical connector contacts the catalytic electrode.

[0044] In this way, the installation portion is used to plug in the catalytic component, that is, the catalytic electrode is clamped in the installation portion, so that the electrical connector can avoid the avoidance portion of the coating layer to directly contact the catalytic electrode and provide stable structural support for the catalytic electrode.

[0045] In a possible implementation, the inner wall of the mounting portion of the electrical connector is formed with at least two protrusions, the at least two protrusions are oppositely arranged along the first direction, and the protrusions are used to abut against the catalytic electrode.

[0046] In this way, the protrusions are formed on the inner wall of the mounting portion, so that the electrical connector forms a structure similar to a shrapnel, and the catalytic electrode is stably clamped in the gap in the mounting portion.

[0047] In a possible implementation, the catalytic electrode is in a sheet structure and extends along a second direction, and the second direction intersects the first direction.

[0048] The number of the electrical connectors is a plurality, and the plurality of electrical connectors includes positive and negative electrical connectors, and the positive and negative electrical connectors are arranged at intervals along the second direction.

[0049] In this way, the catalytic electrode has a certain length and extends along the second direction. Multiple sets of positive and negative electrical connectors can be repeatedly arranged in the air purification device to ensure the uniformity of the electric field inside the catalytic electrode.

[0050] In a possible implementation, one of the positive or negative electrical connectors is connected to one end of each catalytic electrode away from the heat exchanger, and the other of the positive or negative electrical connectors is connected to one end of each catalytic electrode close to the heat exchanger.

[0051] In this way, the positive and negative electrical connectors are clamped on the two sides of the catalytic electrode respectively, the positive electrical connector is connected to the positive electrode of the power supply module, and the negative electrical connector is connected to the negative electrode of the power supply module, so that the current can flow from the positive electrode of the power supply module to the positive electrical connector, then pass through the catalytic electrode, and finally reach the negative electrical connector and flow into the negative electrode of the power supply module, so as to make the catalytic electrode generate an electric heating effect.

[0052] In a possible implementation, along the second direction, the spacing between adjacent positive and negative electrical connectors is L2, and L2 satisfies: L2>50 mm and L2<200 mm.

[0053] In this way, L2>50 mm can help to reduce the electromagnetic interference and capacitive coupling effect between the positive and negative electrical connectors. L2<200 mm helps to reduce the overall size and weight of the air purification device, and improves the compactness and integration of the air purification device. At the same time, L2<200 mm also helps to reduce the inductance of the circuit formed between the catalytic electrode, the electrical connector and the power supply module, and improve the transmission efficiency and response speed of the circuit.

[0054] In a possible implementation, the frame body comprises:

[0055] Two end plates, the two end plates are respectively located at both ends of the catalytic assembly;

[0056] A plurality of plug-in parts are formed on the end plate at intervals along a first direction, and the plug-in parts are used for plugging the catalytic assembly.

[0057] In this way, the plug-in portion can provide structural support for the catalytic component, helping to reduce loosening or displacement of the catalytic component due to vibration or external force, thereby enhancing the overall structural stability of the air purification device and extending the service life of the air purification device.

[0058] In a possible implementation, a power terminal connected to the power module is formed on the end plate, and the electrical connector is connected to the power terminal.

[0059] In this way, by providing a power terminal on the end plate, a convenient electrical connection between the catalytic component and the power module can be achieved.

[0060] In a possible implementation, the frame further includes:

[0061] A connecting plate, both ends of which are connected to the two end plates respectively;

[0062] A mounting hole formed in the connecting plate;

[0063] The fastener passes through the mounting hole and is connected to the housing.

[0064] In this way, by fixing the frame to the casing through fasteners, the installation stability of the frame can be improved, ensuring that the air purification device is firmly installed in the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0066] Figure 1 A schematic diagram of the structure of an air-conditioning indoor unit provided in an embodiment of the present application;

[0067] Figure 2 A schematic diagram of the exploded structure of the air conditioner indoor unit provided in an embodiment of the present application after a portion of the heat exchanger is removed;

[0068] Figure 3 A schematic structural diagram of an air purification device in an air conditioner indoor unit provided in an embodiment of the present application;

[0069] Figure 4A schematic diagram of the exploded structure of a catalytic component in an air conditioner indoor unit provided in an embodiment of the present application;

[0070] Figure 5 for Figure 4 A magnified schematic diagram of point A in the middle;

[0071] Figure 6 A schematic diagram of the exploded structure of the catalytic component and electrical connector in the indoor unit of the air conditioner provided in an embodiment of the present application;

[0072] Figure 7 This is one of the structural schematic diagrams of the electrical connector in the air conditioner indoor unit provided in the embodiment of the present application;

[0073] Figure 8 This is a second structural diagram of the electrical connector in the air conditioner indoor unit provided by an embodiment of the present application;

[0074] Figure 9 for Figure 8 A magnified schematic diagram of point B in the middle;

[0075] Figure 10 A schematic structural diagram of the frame in the air-conditioning indoor unit provided in an embodiment of the present application.

[0076] Description of reference numerals:

[0077] 100-air conditioner indoor unit; 10-casing; 101-air inlet; 102-air outlet; 20-heat exchanger; 30-fan; 40-air purification device; 401-frame; 4011-end plate; 4012-plug-in portion; 4013-power terminal; 4014-connecting plate; 4015-mounting hole; 4016-fastener; 402-catalytic assembly; 4021-catalytic electrode; 4022-coating layer; 40221-avoidance portion; 403-electrical connector; 4031-mounting portion; 4032-raised portion; 403a-positive electrical connector; 403b-negative electrical connector; 404-air passage. DETAILED DESCRIPTION

[0078] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0079] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0080] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0081] In addition, the terms "mount", "set", "provided with", "connected", "connected" should be broadly understood. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0082] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0083] In indoor environment, due to the volatile release of building decoration materials, furniture, cosmetics, and waste gas generated in the process of human activities such as cooking, heating, smoking, etc., often contains formaldehyde, benzene series and other volatile organic compounds (VOCs). Although the concentration of these pollutants in indoor air is usually at a low level, long-term exposure to such environment may cause symptoms such as headache, nausea, and difficulty breathing, and in severe cases may induce respiratory diseases, leukemia and lung cancer and other health risks.

[0084] Currently, the widely used VOCs removal methods in the industry include adsorption filtration, ozone oxidation, ionization technology and photocatalytic decomposition, etc. Although these methods are simple to operate and easy to implement, their purification effect is limited, and in the process of use, secondary pollutants such as ozone may be generated, thereby limiting their application in indoor environment, especially in residential and office spaces with higher air quality requirements.

[0085] Based on this, an embodiment of the present application provides an air-conditioning indoor unit 100, which can efficiently and safely purify volatile organic compounds in the room by utilizing catalytic oxidation technology.

[0086] In an embodiment of the present application, an air conditioner includes a compressor, a condenser, an evaporator, and a throttling component to perform the cooling or heating cycle of the air conditioner. The air conditioner may include an indoor unit 100 and an outdoor unit. The compressor is typically located in the outdoor unit, and the throttling component may be located in either the indoor unit 100 or the outdoor unit. When the air conditioner is in heating mode, the heat exchanger 20 in the indoor unit 100 functions as a condenser, and the heat exchanger in the outdoor unit functions as an evaporator. When the air conditioner is in cooling mode, the heat exchanger 20 in the indoor unit 100 functions as an evaporator, and the heat exchanger in the outdoor unit functions as a condenser.

[0087] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides an air-conditioning indoor unit 100, which includes a housing 10. The housing 10 is a three-dimensional structure having a length direction, a width direction and a height direction. Generally, the left and right directions of the housing 10 can be the length direction of the housing 10, that is, Figure 1 and Figure 2 The housing 10 further includes a front side facing the user, and a rear side opposite to the front side. The direction from the front side to the rear side of the housing 10 is the width direction of the housing 10, that is, Figure 1 and Figure 2 The X direction in .

[0088] In some embodiments, the housing 10 is constructed as a cavity structure, and the cavity may be a heat exchange cavity for accommodating the heat exchanger 20 .

[0089] In some embodiments, as Figure 2 As shown, the air conditioner indoor unit 100 further includes an air inlet 101. The air inlet 101 may be formed at the top of the housing 10 in the height direction. The air inlet 101 extends along the length direction of the housing 10.

[0090] In some embodiments, as Figure 1 and Figure 2 As shown, the air conditioner indoor unit 100 further includes an air outlet 102. The air outlet 102 can be formed on the front side of the housing 10 and disposed near the bottom of the housing. The air outlet 102 extends along the length direction of the housing 10.

[0091] In some embodiments, as Figure 1 and Figure 2As shown, the air conditioner indoor unit 100 further comprises a heat exchanger 20. The heat exchanger 20 is used to exchange heat with indoor air entering the heat exchange cavity through the air inlet 101. The heat exchanger 20 is provided with a refrigerant pipeline containing refrigerant.

[0092] In some embodiments, as shown in Figure 2 As shown, the air conditioner indoor unit 100 further comprises a fan 30. The fan 30 is arranged in the heat exchange cavity, and the heat exchanger 20 is located between the fan 30 and the air inlet 101, that is, the fan 30 can be located below the heat exchanger 20.

[0093] The fan 30 is usually a cross-flow fan 30, and the axial direction of the fan 30 and the length direction of the shell 10 can be arranged in the same direction.

[0094] In some embodiments, the air conditioner indoor unit 100 further comprises a driver. The driver is connected with the fan 30 to drive the fan 30 to rotate. The rotation of the fan 30 can provide power to the indoor air, so that the indoor air enters the heat exchange cavity through the air inlet 101, and after heat exchange with the heat exchanger 20, the indoor air flows out of the heat exchange cavity through the air outlet 102 and enters the indoor environment.

[0095] In some embodiments, the air conditioner indoor unit further comprises a power module. The power module is used to be electrically connected with an external power source, and the power module can provide stable power for the heat exchanger 20, the fan 30, the driver and other possible electronic components.

[0096] The power module can include rectifiers, filters, transformers and other components to ensure that the power input from the external power source can be converted into voltage and current suitable for the use of various electrical components inside the air conditioner indoor unit 100.

[0097] In some embodiments, the air conditioner indoor unit 100 can further comprise an air purification device 40. The air purification device 40 is arranged in the air inlet 101.

[0098] The indoor air can pass through the air purification device 40, then be heat-exchanged by the heat exchanger 20, and then flow out of the air outlet 102. The volatile organic compounds in the indoor air are purified and decomposed by the air purification device 40, and the concentration of the volatile organic compounds in the indoor air is effectively reduced, so that the air flowing into the indoor environment not only can reach the temperature set by the user, but also the quality of the air can be optimized.

[0099] In some embodiments, as shown in Figure 3 The air purification device 40 comprises a frame 401. The frame 401 has a mounting space. The frame 401 can be constructed as a frame structure, so as to reduce the shielding of the frame 401 to the indoor air, so that as much air as possible can pass through the frame 401.

[0100] In some embodiments, as Figure 3 As shown, the air purification device 40 includes a catalytic component 402. The catalytic component 402 is disposed in an installation space within a frame 401.

[0101] In some embodiments, as Figure 3 As shown, there are multiple catalytic assemblies 402. The multiple catalytic assemblies 402 are arranged at intervals along the first direction, and air passages 404 are formed between the multiple catalytic assemblies 402. The air passages 404 are connected to the heat exchange cavity. In other words, the multiple catalytic assemblies 402 are arranged in an array.

[0102] The first direction may be the length direction of the housing 10 or the width direction of the housing 10. Figure 3 As shown, when the first direction is the width of the housing 10 (i.e., the X direction), the air passage 404 can also extend along the length of the housing 10 (i.e., the Y direction). In this way, the surface of the catalyst assembly 402 can be parallel to the airflow direction of the indoor air entering from the air inlet, thereby improving air flow efficiency and increasing the contact area between the catalyst assembly 402 and the volatile organic compounds.

[0103] In some embodiments, as Figure 4 As shown, each catalytic assembly 402 may include a catalytic electrode 4021. Catalytic material is formed on the catalytic electrode 4021.

[0104] Optionally, the catalytic electrode 4021 can be made of a conductive material, such as nickel foam, copper foam, titanium mesh, stainless steel mesh, carbon fiber cloth, etc. The catalytic electrode 4021 can also be made of a non-conductive material, such as non-woven fabric, glass fiber cloth, sponge, porous ceramic sheet, etc.

[0105] In some embodiments, the catalytic material may be an active material. The catalytic material may be uniformly grown on the catalytic electrode 4021 by electrodeposition or hydrothermal method. This method may form the catalytic electrode 4021 and the catalytic material into an integrated composite conductive material and provide the catalytic electrode 4021 with uniform resistance.

[0106] Optionally, the catalytic material may be a material having a VOCs catalytic removal function, and may be a single metal or mixed metal oxide such as Mn, Fe, Co, Ni, Cu, Sn, In, or Ag.

[0107] In some embodiments, the air purification device 40 further includes an electrical connector 403. The electrical connector 403 is electrically connected to the catalytic electrode 4021 and the power module.

[0108] It should be noted that most volatile organic compounds can be catalytically oxidized into harmless carbon dioxide and water, but the catalytic oxidation reaction requires a certain temperature. Electrical connector 403 is directly electrically connected to catalytic electrode 4021 and the power module. Because catalytic electrode 4021 is conductive, the electrothermal effect generated by powering it causes the surface of catalytic electrode 4021 to heat rapidly, rapidly activating the catalytic material. The catalytic material can catalytically oxidize the volatile organic compounds, converting them into environmentally friendly carbon dioxide and water.

[0109] It will be appreciated that the direct connection of the electrical connector 403 to the catalytic electrode 4021 avoids the need for heating the catalytic material by heat conduction or heat radiation. Due to the low heat transfer efficiency of heat conduction or heat radiation, it may be necessary to apply hundreds or even thousands of watts of power to the heat source to bring the catalytic material to the desired catalytic temperature. In the air conditioner indoor unit 100 of the present embodiment, the catalytic electrode 4021 itself can generate heat based on the electrothermal effect to rapidly heat the catalytic material, eliminating the need for heat conduction from other heat sources. This reduces heat loss from heat radiation or heat conduction and improves the catalytic efficiency of the catalytic material.

[0110] It is worth noting that since the catalytic electrode 4021 is directly electrically connected to the electrical connector 403, a catalytic material is formed on the catalytic electrode 4021. In this way, the catalytic electrode 4021 can generate a high amount of heat at a relatively low voltage, activating the catalytic material and reducing the power consumption of the air conditioner indoor unit 100.

[0111] In addition, the surface temperature T of the catalytic electrode 4021 is proportional to the square of the current I flowing inside and the resistance R of the catalytic electrode 4021, that is, T∝I 2 By controlling the power supplied by the power module, the surface temperature of the catalytic electrode 4021 can be accurately controlled. The surface temperature of the catalytic electrode 4021 can reach 50°C-500°C, thereby enabling the catalytic material to perform targeted removal of different types of volatile organic compounds.

[0112] For example, when formaldehyde needs to be catalytically oxidized, the power module can provide a voltage of 15V, at which the surface temperature of the catalytic electrode 4021 can reach 60°C-70°C, enabling the catalytic material to perform directionally catalytic oxidation on formaldehyde.

[0113] Because the catalytic electrode 4021 can reach a relatively high temperature due to the electrothermal effect, the catalytic component 402 can not only catalytically oxidize volatile organic compounds, but also effectively kill other harmful substances in the indoor air, such as bacteria and viruses. The purified air flows through the evaporator, fan 30, and finally blown out of the air outlet 102, further enhancing the circulation purification effect of the air purification device 40.

[0114] In some embodiments, as shown in FIG. 4, each catalytic electrode 4021 further comprises a cladding layer 4022. The cladding layer 4022 clads at least part of the outer surface of the catalytic electrode 4021. In this way, the catalytic assembly 402 forms a "sandwich" structure of cladding layer 4022-catalytic electrode 4021-cladding layer 4022. Figure 4

[0115] In some embodiments, the cladding layer 4022 is used to reduce the heat conduction between the catalytic electrode 4021 and the indoor air, i.e., the cladding layer 4022 is used for thermal insulation.

[0116] Since the cladding layer 4022 is arranged on both sides of the catalytic electrode 4021, although the air flow channels 404 for air circulation are formed between the arrayed catalytic assemblies 402, since the cladding layer 4022 is formed on the outer surface of the catalytic electrode 4021 for thermal insulation, the heat generated by the catalytic electrode 4021 can be greatly slowed down from dissipating to the indoor air, so that the catalytic electrode 4021 can be kept at a catalytic temperature at which the catalytic material can catalytically oxidize volatile organic compounds.

[0117] At the same time, since the cladding layer 4022 can reduce the heat conduction between the catalytic electrode 4021 and the indoor air, it can also avoid the catalytic electrode 4021 from having too large an impact on the indoor ambient temperature, so that the operating power of the heat exchanger 20 is within the set range.

[0118] Specifically, the cladding layer 4022 can effectively retain the local high temperature on the surface of the catalytic electrode 4021, but the surface temperature of the cladding layer 4022 can be maintained between 20-80℃ to slow down the rising speed of the indoor temperature.

[0119] Thus, the air purification device 40 provided by the air conditioner indoor unit 100 according to the embodiments of the present application has the inlet 101 provided with the air purification device 40, and the catalytic assembly 402 of the air purification device 40 comprises the catalytic electrode 4021 and the cladding layer 4022. The catalytic electrode 4021 can directly generate an electric heating effect by being powered, so that the catalytic material integrated with the catalytic electrode 4021 can catalytically oxidize volatile organic compounds at an ideal catalytic temperature and convert them into harmless substances, and the way of removing volatile organic compounds is highly safe. At the same time, since the heat generated by the catalytic electrode 4021 under the electric heating effect directly makes the catalytic material reach the catalytic temperature, the catalytic electrode 4021 can reach the catalytic temperature at a lower voltage, thereby improving the catalytic efficiency of the air conditioner purification device. The cladding layer 4022 having the thermal insulation effect can prevent the heat of the catalytic electrode 4021 from being dissipated, and reduce the impact of the higher temperature of the catalytic electrode 4021 on the ambient temperature, thereby further improving the energy efficiency of the air conditioner indoor unit 100.

[0120] ​The embodiment of the present application further provides an air-conditioning indoor unit 100 . The difference between the air-conditioning indoor unit 100 and the air-conditioning indoor unit 100 provided in the above embodiment lies in the coating layer 4022 provided on the outside of the catalytic electrode 4021 , which is suitable for adsorbing volatile organic compounds.

[0121] In some embodiments, as Figure 4 As shown, coating layer 4022 has adsorption capabilities. When indoor air passes through air passage 404 formed by catalytic assembly 402, coating layer 4022 can adsorb volatile organic compounds (VOCs) in the air. Coating layer 4022 allows the VOCs to pass through and reach catalytic electrode 4021 for catalytic oxidation, thereby improving the catalytic efficiency of catalytic assembly 402.

[0122] Thus, the air inlet 101 of the air conditioning indoor unit 100 provided in the embodiment of the present application is provided with an air purification device 40. The catalytic component 402 of the air purification device 40 includes a catalytic electrode 4021 and a coating layer 4022. The catalytic electrode 4021 can be directly energized to generate an electrothermal effect, so that the catalytic material integrated with the catalytic electrode 4021 can catalytically oxidize volatile organic compounds at an ideal catalytic temperature and convert them into harmless substances, thereby removing volatile organic compounds in a safe manner. At the same time, since the heat generated by the catalytic electrode 4021 under the electrothermal effect directly causes the catalytic material to reach the catalytic temperature, the catalytic electrode 4021 can reach the catalytic temperature at a lower voltage, thereby improving the high-temperature catalytic efficiency of the air conditioning purification device. The coating layer 4022 can adsorb volatile organic compounds in the air, thereby improving the efficiency of the catalytic electrode 4021 in full contact with the volatile organic compounds, and ensuring the purification performance of the air conditioning indoor unit 100 for volatile organic compounds.

[0123] In some embodiments, a plurality of adsorption pores are formed in the coating layer 4022. The coating layer 4022 has abundant adsorption pores, which may be micro- or nano-scale pores, to allow gaseous pollutants (bacteria, viruses, volatile organic compounds, etc.) to pass through.

[0124] Specifically, coating layer 4022 may be a porous aerogel. Aerogels are lightweight, porous materials composed of a solid network structure and gas-filled pores. The solid network structure is typically composed of colloidal particles or polymer chains, which are linked together by chemical bonds and interactions to form a stable network structure. The pores are formed by the spaces between the network structures and can be filled with gas. The pore structure and surface properties of porous aerogels give them excellent adsorption properties for a variety of substances.

[0125] In some embodiments, as Figure 3As shown, the plurality of catalytic assemblies 402 are arranged at intervals along the first direction, that is, the plurality of catalytic assemblies 402 form an array structure. Along the first direction, the distance between two adjacent catalytic electrodes 4021 is L1, and L1 satisfies L1>2mm.

[0126] L1>2mm, a certain distance can be created between the multiple catalytic components 402. The certain distance L1 allows the indoor air to pass through the air passage 404 formed between the catalytic components 402 more smoothly, thereby reducing the diffusion resistance of the gas between the multiple catalytic components 402, thereby improving the catalytic conversion efficiency of the catalytic components 402 on volatile organic compounds in the indoor gas.

[0127] If L1 is too small, for example: L1 < 2 mm, the too small spacing L1 will significantly restrict the flow of gas in the air passage, increase the resistance to gas diffusion, and easily lead to uneven gas distribution. The air in some areas may not be able to fully contact the catalytic electrode 4021, thereby reducing the catalytic efficiency of the catalytic electrode 4021.

[0128] In addition, if the catalytic components 402 are arranged too closely, the heat transfer between the catalytic components 402 may be faster, resulting in local overheating, affecting the stability of the catalytic material and reducing the catalytic effect on specific organic matter.

[0129] In some embodiments, as Figure 3 As shown, along the first direction, the distance between two adjacent catalytic electrodes 4021 is L1, and L1 satisfies L1<50mm.

[0130] L1 is less than 50 mm, which can ensure the compactness and integration of the multiple catalytic components 402 while maintaining good gas fluidity in the air passage 404 and the catalytic oxidation efficiency of volatile organic compounds.

[0131] However, if L1 is too large, for example, L1>50 mm, the number of catalytic components 402 will need to be reduced within the limited space, which may lead to a decrease in the overall purification performance of the air purification device 40. At the same time, it is not conducive to the compactness and integration of the air purification device 40, and may also increase the manufacturing cost and maintenance difficulty of the air conditioner indoor unit 100.

[0132] Specifically, L1 can be 3 mm, 5 mm, 7 mm, 10 mm, 13 mm, 15 mm, 17 mm, 20 mm, 23 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 48 mm, or 49 mm. This ensures that indoor air can pass through the air passages 404 formed between the catalytic assemblies 402 more smoothly while also ensuring the compactness and integration of the multiple catalytic assemblies 402.

[0133] In some embodiments, as Figure 6 As shown, the electrical connection assembly extends along a first direction, and the electrical connector 403 is connected to a plurality of catalytic assemblies 402 spaced apart along the first direction. Thus, the electrical connector 403 not only electrically connects to the catalytic assemblies 402, but also provides structural support for the catalytic assemblies 402, allowing the catalytic assemblies 402 to maintain an array arrangement.

[0134] Specifically, electrical connector 403 is configured as a current collector. The current collector has excellent electrical conductivity to ensure smooth transmission of current between catalytic components 402. The current collector also has sufficient structural strength and stability to withstand external pressure or vibration that may be applied to catalytic components 402. The design of the current collector can simultaneously power catalytic electrodes 4021 while also providing structural support for catalytic electrodes 4021, making air purification device 40 more compact, efficient, and easy to maintain and replace.

[0135] In some embodiments, as Figure 7 and Figure 8 As shown, the electrical connector 403 is formed with mounting portions 4031 spaced apart along the first direction. The mounting portions 4031 are used to plug into the catalytic assembly 402 .

[0136] like Figure 8 As shown, the mounting portion 4031 is hollowed out and extends through the end of one side of the electrical connector 403. The mounting portion 4031 is used to insert the catalytic assembly 402, that is, the catalytic electrode 4021 is fixed in the mounting portion 4031, so that the electrical connector 403 can provide stable structural support for the catalytic electrode 4021.

[0137] In some embodiments, as Figure 4 and Figure 5 As shown, an escape portion 40221 is formed on the covering layer 4022 , and the escape portion 40221 corresponds to the mounting portion 4031 , so that the electrical connector 403 contacts the catalytic electrode 4021 .

[0138] The cover layer 4022 is provided with some notches in the contact area between the electrical connector 403 and the catalytic electrode 4021 , so that the electrical connector 403 and the catalytic electrode 4021 are in direct and close contact, and the electrical connector 403 supplies power to the catalytic electrode 4021 .

[0139] In some embodiments, as Figure 8 and Figure 9 As shown, at least two protrusions 4032 are formed on the inner wall of the mounting portion 4031 of the electrical connector 403. The protrusions 4032 are used to abut against the catalytic electrode 4021.

[0140] At least two protrusions 4032 are arranged opposite to each other along the first direction. The protrusions 4032 are formed on the inner wall of the mounting portion 4031 so that the electrical connector 403 has a structure similar to a spring, stably clamping the catalytic electrode 4021 in the gap within the mounting portion 4031.

[0141] In some embodiments, as Figure 4 As shown, the catalytic electrode 4021 is a sheet-type structure. The sheet-type catalytic electrode 4021 has a larger surface area and can more effectively contact with the indoor air, thereby improving the rate and efficiency of the catalytic reaction of the catalytic electrode 4021.

[0142] In some embodiments, as Figure 4 As shown, the catalytic electrode 4021 extends along the second direction, which intersects the first direction.

[0143] Specifically, the second direction may intersect with the first direction.

[0144] In some examples, the second direction may be perpendicular or approximately perpendicular to the first direction. It is understood that the second direction may be "approximately perpendicular" to the first direction, that is, the angle between the second direction and the first direction may be approximately 90°, such as 88°, 89°, 91°, or 92°.

[0145] In some embodiments, the first direction may be a width direction of the housing 10 , and the second direction may be a length direction of the housing 10 .

[0146] In some embodiments, as Figure 6 As shown, there are multiple electrical connectors 403. The multiple electrical connectors 403 include a positive electrode electrical connector 403a and a negative electrode electrical connector 403b.

[0147] Along the height direction of the housing 10, the positive electrical connector 403a and the negative electrical connector 403b are respectively clamped on both sides of the catalytic electrode 4021. The positive electrical connector 403a is connected to the positive pole of the power module, and the negative electrical connector 403b is connected to the negative pole of the power module. In this way, the current can flow from the positive pole of the power module to the positive electrical connector 403a, then flow through the catalytic electrode 4021, and finally reach the negative electrical connector 403b and flow into the negative pole of the power module, so that the catalytic electrode 4021 is energized to generate an electrothermal effect.

[0148] In some embodiments, as Figure 6 As shown, the positive electrode electrical connector 403a and the negative electrode electrical connector 403b are spaced apart along the second direction. Since the catalytic electrode 4021 has a certain length and extends along the second direction, multiple sets of positive electrode electrical connectors 403a and multiple negative electrode electrical connectors 403b can be repeatedly provided in the air purification device 40 to ensure uniformity of the electric field within the catalytic electrode 4021.

[0149] In some embodiments, as Figure 6 As shown, the positive electrical connector 403a can be disposed at the end of the catalytic electrode 4021 away from the heat exchanger 20. Since the heat exchanger 20 is located below the air purification device 40, the positive electrical connector 403a is connected to the top of the catalytic electrode 4021. The negative electrical connector 403b can be disposed at the end of the catalytic electrode 4021 closer to the heat exchanger 20, that is, the negative electrical connector 403b is connected to the bottom of the catalytic electrode 4021.

[0150] In some embodiments, the positive electrical connector 403a can be disposed at the end of the catalytic electrode 4021 that is close to the heat exchanger 20. Since the heat exchanger 20 is located below the air purification device 40, the positive electrical connector 403a is connected to the bottom of the catalytic electrode 4021. The negative electrical connector 403b can be disposed at the end of the catalytic electrode 4021 that is away from the heat exchanger 20, that is, the negative electrical connector 403b is connected to the top of the catalytic electrode 4021.

[0151] It can be understood that regardless of whether the positive electrical connector 403a is located at the top or bottom of the catalytic electrode 4021, the negative electrical connector 403b is correspondingly located at the other end. This can effectively optimize the current path and ensure that the current is evenly distributed on the catalytic electrode 4021, thereby improving the catalytic efficiency of the catalytic electrode 4021 and promoting the overall performance improvement of the air purification device 40.

[0152] In some embodiments, as Figure 6 As shown, along the second direction, the distance between adjacent positive electrode electrical connectors 403a and negative electrode electrical connectors 403b is L2, and L2 satisfies: L2>50mm.

[0153] L2>50 mm can help reduce electromagnetic interference and capacitive coupling effects between the positive electrical connector 403a and the negative electrical connector 403b.

[0154] If L2 is too small, for example, L2 < 50 mm, unnecessary electromagnetic interference may be generated between the positive electrical connector 403a and the negative electrical connector 403b, affecting the stability and reliability of the circuit formed between the catalytic electrode 4021, the electrical connector 403 and the power module.

[0155] In some embodiments, along the second direction, the distance between adjacent positive electrode electrical connectors 403a and negative electrode electrical connectors 403b is L2, and L2 satisfies: L2<200 mm.

[0156] L2 < 200 mm helps reduce the overall size and weight of the air purification device 40, improving the compactness and integration of the air purification device 40. Furthermore, L2 < 200 mm helps reduce the inductance of the circuit formed between the catalytic electrode 4021, the electrical connector 403, and the power module, thereby improving the transmission efficiency and response speed of the circuit.

[0157] If L2 is too large, for example, L2>200 mm, the overall size and weight of the air purification device 40 may increase, and the compactness and integration of the air purification device 40 may be reduced.

[0158] Specifically, L2 can be 51mm, 55mm, 57mm, 60mm, 63mm, 65mm, 67mm, 20mm, 73mm, 75mm, 80mm, 85mm, 90mm, 95mm, 105mm, 110mm, 100mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm or 199mm. In this way, unnecessary electromagnetic interference between the positive electrical connector 403a and the negative electrical connector 403b can be avoided, and the structural compactness and integration of the air purification device 40 can also be ensured.

[0159] In some embodiments, the frame 401 of the air purification device 40 is made of insulating material. The insulating material frame 401 can effectively prevent current from passing through the frame 401, thereby avoiding safety accidents caused by electrical short circuits or leakage.

[0160] In some implementations, such as Figure 10 As shown, the frame 401 may include two end plates 4011. The two end plates 4011 are respectively located at both ends of the catalytic assembly 402. The end plates 4011 are connected to the catalytic assembly 402 to provide structural support for the catalytic assembly 402.

[0161] In some embodiments, as Figure 10 As shown, the frame 401 may include a plug-in portion 4012. The plug-in portion 4012 is located on a side of the end plate 4011 facing the catalytic assembly 402, and there are multiple plug-in portions 4012.

[0162] In some embodiments, a plurality of plug-in portions 4012 are spaced apart along the first direction on the end plate 4011 . The spacing between the plug-in portions 4012 is the same as the spacing between the catalytic assemblies 402 , so that the ends of the catalytic assemblies 402 are plugged into the plug-in portions 4012 .

[0163] The plug-in portion 4012 can provide structural support for the catalytic component 402, helping to reduce loosening or displacement of the catalytic component 402 due to vibration or external force, thereby enhancing the overall structural stability of the air purification device 40 and extending the service life of the air purification device 40.

[0164] In some embodiments, as Figure 10 As shown, a power terminal 4013 is provided on the side of the end plate 4011 facing away from the catalytic assembly 402, and the power terminal 4013 is connected to the power module.

[0165] The power terminal 4013 includes a positive terminal and a negative terminal. The positive terminal is electrically connected to the positive electrical connector 403 a , and the negative terminal is electrically connected to the negative electrical connector 403 b .

[0166] The power terminal 4013 is located on the side of the end plate 4011 away from the catalytic electrode 4021, which can prevent users or maintenance personnel from directly contacting the power terminal 4013 and ensure the safety of cleaning or maintenance operations.

[0167] In some embodiments, as Figure 10 As shown, the frame 401 may include a connecting plate 4014. Both ends of the connecting plate 4014 are connected to the two end plates 4011 respectively.

[0168] like Figure 10 As shown, a mounting hole 4015 may be provided on the connecting plate 4014 , and the fastener 4016 may be installed on the housing 10 through the mounting hole 4015 .

[0169] Specifically, a threaded hole is formed in the portion of the housing 10 where the air inlet 101 is formed, and the fastener 4016 can pass through the mounting hole 4015 and be fastened in the threaded hole to ensure that the air purification device 40 is stably mounted on the housing 10 .

[0170] Alternatively, fastener 4016 may be a screw.

[0171] In some embodiments, the air conditioner indoor unit 100 is further configured with a controller, which can be set on the side of the frame 401.

[0172] In some embodiments, an air quality sensor may be provided in the air conditioner indoor unit 100. The air quality sensor may be electrically connected to a controller, which may control the output voltage of the power module based on the detection results of the air quality sensor, thereby controlling the catalytic component 402 to activate the catalytic material at a suitable catalytic temperature, so that the catalytic material can catalyze volatile organic compounds in a targeted manner.

[0173] In some embodiments, the controller's method for controlling the air purification device may include:

[0174] S101. Obtaining the composition and concentration of volatile organic compounds in the room according to the detection results of the air quality detection sensor;

[0175] S102: When the concentration of volatile organic compounds exceeds a target threshold, determining a first operating power of the air purification device from a pre-stored relationship between the concentration of volatile organic compounds and the operating power of the air purification device, and controlling the air purification device to operate at the first operating power; wherein the first operating power is the operating power of the air purification device corresponding to the volatile organic compound with the highest concentration;

[0176] S103: When the concentration of volatile organic compounds is lower than the target threshold, switching the air purification device to operate at a second operating power, where the second operating power is lower than the first operating power;

[0177] S104 : When the concentrations of all volatile organic compounds are below the target threshold, turn off the air purification device 40 .

[0178] In some embodiments, the air conditioner indoor unit further includes a temperature detection sensor, which is used to detect the set temperature Ts of the indoor unit and the current indoor temperature T. The temperature detection sensor is electrically connected to the controller.

[0179] In some embodiments, the operation of the air purification device 40 also needs to be adapted to the operation of the heat exchanger 20 to ensure that the air discharged from the air outlet meets the user's set temperature. The controller's control method for the air conditioner indoor unit may include:

[0180] S201, obtaining the current operating mode of the air conditioner indoor unit 100;

[0181] S202, obtaining the set temperature Ts and current indoor temperature T of the air-conditioning indoor unit 100;

[0182] S203 . In the air supply mode, when the concentration of volatile organic compounds exceeds a target threshold, operate the air purification device at a first operating power.

[0183] In the air supply mode, as long as the concentration of volatile organic compounds exceeds the target threshold, the air purification device can be turned on to purify the indoor air.

[0184] In some embodiments, the method for controlling the air conditioner indoor unit by the controller may further include:

[0185] S301, obtaining the current operating mode of the air conditioner indoor unit 100;

[0186] S302, obtaining the set temperature Ts and current indoor temperature T of the air-conditioning indoor unit 100;

[0187] S303. In cooling mode, the required cooling capacity Qx of the heat exchanger is determined based on the difference Δ(T-Ts) between the current indoor temperature T and the set temperature Ts;

[0188] S304. When Qc-Q≥Qx, control the compressor to operate at rated power; where Qc is the rated cooling capacity of the air conditioner, and Q is the heat dissipated during operation of the air purification device, and Q is related to the operating power of the air purification device;

[0189] S305. When Qc-Q<Qx, the rated power of the compressor is corrected by the coefficient x (1.0≤x≤1.5), and the air purification device 40 is controlled to operate at the second operating power, which is 0.5 to 1.0 times the first operating power, until xQc-Q'≥Qx.

[0190] In cooling mode, when the concentration of volatile organic compounds exceeds the target threshold, by controlling the operating power of the compressor and air purification device, the indoor air can be purified without affecting the cooling of the indoor air conditioner.

[0191] In some embodiments, the controller's control method for the air conditioner indoor unit may include:

[0192] S401, obtaining the current operating mode of the air conditioner indoor unit 100;

[0193] S402, obtaining the set temperature Ts and current indoor temperature T of the air-conditioning indoor unit 100;

[0194] S403. In heating mode, the required heating capacity Qy of the heat exchanger is determined based on the difference Δ(Ts-T) between the current indoor temperature T and the set temperature Ts;

[0195] S404. When Qh+Q>Qy, correct the rated power of the compressor using coefficient y (0≤y≤1.0) until Qh+Q=Qy; wherein Qh is the rated heating capacity of the air conditioner.

[0196] In heating mode, if the concentration of volatile organic compounds exceeds the target threshold, by controlling the operating power of the compressor and air purification device, the indoor air can be purified while not affecting the heating of the indoor air conditioner, while saving electricity.

[0197] 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 them. 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 make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air conditioner indoor unit, characterized in that: include: a casing, wherein a heat exchange cavity is formed in the casing; an air inlet, disposed on the housing, the air inlet being in communication with the heat exchange cavity; an air outlet, disposed on the housing, the air outlet being in communication with the heat exchange cavity; a heat exchanger, disposed in the heat exchange cavity; a fan disposed in the heat exchange chamber, the fan being capable of guiding indoor air from the air inlet to the heat exchange chamber, and the indoor air flowing out from the air outlet after heat exchange in the heat exchanger; A power module, the power module being configured to be electrically connected to an external power source; An air purification device is arranged at the air inlet; The air purification device comprises: A frame body, wherein the frame body has an installation space; a catalytic component, the catalytic component being disposed inside the frame; The catalytic assembly comprises: a catalytic electrode having a catalytic material formed thereon, the catalytic material being used to decompose volatile organic compounds; a coating layer, the coating layer coating at least a portion of the outer surface of the catalytic electrode, the coating layer being used to reduce heat conduction between the catalytic electrode and indoor air; An electrical connector is connected to the catalytic electrode and the power module.

2. The air conditioner indoor unit according to claim 1, characterized in that: A plurality of adsorption holes are formed in the coating layer.

3. The air conditioner indoor unit according to claim 1, characterized in that: There are multiple catalytic assemblies, and the multiple catalytic assemblies are arranged at intervals along the first direction. An air passage is formed between two adjacent catalytic assemblies, and the air passage is connected to the heat exchange cavity.

4. The air conditioner indoor unit according to claim 3, characterized in that: Along the first direction, the distance between two adjacent catalytic electrodes is L1, and L1 satisfies: L1>2mm, L1<50mm.

5. The air conditioner indoor unit according to claim 3, characterized in that: The electrical connector extends along the first direction, and is formed with a plurality of mounting portions spaced apart along the first direction. The mounting portions are hollowed out on the electrical connector, and are used to plug the catalytic assembly. A relief portion is formed on the covering layer, and the relief portion corresponds to the mounting portion so that the electrical connector contacts the catalytic electrode.

6. The air conditioner indoor unit according to claim 5, characterized in that: At least two protrusions are formed on the inner wall of the mounting portion of the electrical connector. The at least two protrusions are arranged opposite to each other along the first direction, and the protrusions are used to abut against the catalytic electrode.

7. The air conditioner indoor unit according to claim 3, characterized in that: The catalytic electrode is a sheet-like structure and extends along a second direction, and the second direction intersects with the first direction; There are multiple electrical connectors, including a positive electrode connector and a negative electrode connector. The positive electrode connector and the negative electrode connector are spaced apart from each other along the second direction.

8. The air conditioner indoor unit according to claim 7, characterized in that: One of the positive electrical connector or the negative electrical connector is connected to an end of each catalytic electrode away from the heat exchanger, and the other of the positive electrical connector or the negative electrical connector is connected to an end of each catalytic electrode close to the heat exchanger.

9. The air conditioner indoor unit according to claim 7, characterized in that: Along the second direction, the distance between the adjacent positive electrode electrical connectors and the adjacent negative electrode electrical connectors is L2, and L2 satisfies: L2>50mm, L2<200mm.

10. The air conditioner indoor unit according to claim 3, characterized in that: The frame comprises: Two end plates, the two end plates are respectively located at two ends of the catalytic assembly; A plurality of plug-in portions are formed on the end plate at intervals along the first direction, and the plug-in portions are used to plug in the catalytic assembly.

11. The air conditioner indoor unit according to claim 10, characterized in that: A power terminal connected to the power module is formed on the end plate, and the electrical connector is connected to the power terminal.

12. The air conditioner indoor unit according to claim 10, characterized in that: The frame also includes: A connecting plate, the two ends of which are respectively connected to the two end plates; a mounting hole formed in the connecting plate; A fastener passes through the mounting hole and is connected to the housing.

13. An air conditioner indoor unit, characterized in that: include: a casing, wherein a heat exchange cavity is formed in the casing; an air inlet, disposed on the housing, the air inlet being in communication with the heat exchange cavity; an air outlet, disposed on the housing, the air outlet being in communication with the heat exchange cavity; a heat exchanger, disposed in the heat exchange cavity; a fan disposed in the heat exchange chamber, the fan being capable of guiding indoor air from the air inlet to the heat exchange chamber, and after heat exchange in the heat exchanger, the indoor air is directed through the air outlet; A power module, the power module being configured to be electrically connected to an external power source; An air purification device is arranged at the air inlet; The air purification device comprises: A frame body, wherein the frame body has an installation space; a catalytic component, the catalytic component being disposed inside the frame; The catalytic assembly comprises: a catalytic electrode having a catalytic material formed thereon, the catalytic material being used to decompose volatile organic compounds; a coating layer, the coating layer coating at least a portion of the outer surface of the catalytic electrode, the coating layer being capable of adsorbing the volatile organic compound; An electrical connector is connected to the catalytic electrode and the power module.

14. The air conditioner indoor unit according to claim 13, characterized in that: A plurality of adsorption holes are formed in the coating layer.

15. The air conditioner indoor unit according to claim 13, characterized in that: There are multiple catalytic assemblies, and the multiple catalytic assemblies are arranged at intervals along the first direction. An air passage is formed between two adjacent catalytic assemblies, and the air passage is connected to the heat exchange cavity.

16. The air conditioner indoor unit according to claim 15, characterized in that: Along the first direction, the distance between two adjacent catalytic electrodes is L1, and L1 satisfies: L1>2mm, L1<50mm.

17. The air conditioner indoor unit according to claim 15, characterized in that: The electrical connector extends along the first direction, and is formed with a plurality of mounting portions spaced apart along the first direction. The mounting portions are hollowed out on the electrical connector, and are used to plug the catalytic assembly. A relief portion is formed on the covering layer, and the relief portion corresponds to the mounting portion so that the electrical connector contacts the catalytic electrode.

18. The air conditioner indoor unit according to claim 17, characterized in that: At least two protrusions are formed on the inner wall of the mounting portion of the electrical connector. The at least two protrusions are arranged opposite to each other along the first direction, and the protrusions are used to abut against the catalytic electrode.

19. The air conditioner indoor unit according to claim 15, characterized in that: The catalytic electrode is a sheet-like structure and extends along a second direction, and the second direction intersects with the first direction; There are multiple electrical connectors, including a positive electrode connector and a negative electrode connector. The positive electrode connector and the negative electrode connector are spaced apart from each other along the second direction.

20. The air conditioner indoor unit according to claim 19, characterized in that: One of the positive electrical connector or the negative electrical connector is connected to an end of each catalytic electrode away from the heat exchanger, and the other of the positive electrical connector or the negative electrical connector is connected to an end of each catalytic electrode close to the heat exchanger.

21. The air conditioner indoor unit according to claim 19, wherein: Along the second direction, the distance between the adjacent positive electrode electrical connectors and the adjacent negative electrode electrical connectors is L2, and L2 satisfies: L2>50mm, L2<200mm.

22. The air conditioner indoor unit according to claim 15, characterized in that: The frame comprises: Two end plates, the two end plates are respectively located at two ends of the catalytic assembly; A plurality of plug-in portions are formed on the end plate at intervals along the first direction, and the plug-in portions are used to plug in the catalytic assembly.

23. The air conditioner indoor unit according to claim 22, characterized in that: A power terminal connected to the power module is formed on the end plate, and the electrical connector is connected to the power terminal.

24. The air conditioner indoor unit according to claim 22, characterized in that: The frame also includes: A connecting plate, the two ends of which are respectively connected to the two end plates; a mounting hole formed in the connecting plate; A fastener passes through the mounting hole and is connected to the housing.

Images