Air conditioner indoor unit, air conditioner, control method of air conditioner indoor unit

Abstract

The application discloses an air conditioner indoor unit, an air conditioner, and a control method of the air conditioner indoor unit. The air conditioner indoor unit comprises a shell, a fresh air module, and a fixing base. The shell is provided with a fresh air inlet and a fresh air outlet, and comprises a bottom plate. The fresh air module is arranged in the shell and comprises a wind guide cover, an air guide assembly, and a purification assembly. One end of the wind guide cover is provided with a ventilation opening and is communicated with the fresh air inlet, and a wind guide channel is formed in the wind guide cover. The air guide assembly is connected with the wind guide cover, the air inlet end of the air guide assembly is communicated with the wind guide channel, and the air outlet end of the air guide assembly is communicated with the fresh air outlet. The purification assembly is arranged in the wind guide channel. The fresh air module is connected with the fixing base, and the fixing base is connected with the bottom plate. The air conditioner indoor unit of the embodiment of the application is compact and modular, can be quickly assembled to the bottom plate through the fixing base, and can send external fresh air into the room after purification. The air conditioner indoor unit is convenient to assemble and disassemble, compact in structure, and stable in operation after assembly.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air treatment equipment, and specifically relates to an air conditioner indoor unit, an air conditioner and a control method of an air conditioner indoor unit. BACKGROUND

[0002] When a fresh air device is additionally arranged in the air conditioner indoor unit, a fresh air conditioner can be formed. In the process of operation of the air conditioner indoor unit, the fresh air device can also introduce fresh air from the outside into the room to improve the oxygen concentration in the room and reduce the carbon dioxide concentration, so that the room can continuously maintain a high air quality.

[0003] In the related art, the cross-sectional dimension of a circular cabinet machine is usually smaller than that of a square cabinet machine, and the fresh air device in the circular cabinet machine cannot be directly used for the square cabinet machine. The fresh air device has a complex structure and is inconvenient to install. A design scheme of the fresh air device needs to be specially developed for the square cabinet machine. In addition, when the fresh air device works, if the air humidity outside is large, a large amount of condensate water will appear in the fresh air device, which reduces the working life of the fresh air device and reduces the working performance of components such as a filter in the fresh air device, and also increases the condensate water at the fresh air outlet and affects the surrounding environment. SUMMARY

[0004] The present application aims to solve at least one of the problems in the prior art. To this end, the first aspect of the present application aims to provide an air conditioner indoor unit, wherein a fresh air module of the air conditioner indoor unit is compactly arranged in a modular manner and can be directly connected to a bottom plate by a fixing seat, thereby solving the problem of inconvenient assembly of the fresh air device of the air conditioner indoor unit in the prior art.

[0005] The second aspect of the present application aims to provide an air conditioner having the aforementioned air conditioner indoor unit.

[0006] The third aspect of the present application aims to provide a control method of an air conditioner indoor unit.

[0007] According to the air conditioner indoor unit of the present application, the air conditioner indoor unit comprises a casing, a fresh air inlet and a fresh air outlet arranged on the casing, and a bottom plate; a fresh air module arranged in the casing, wherein the fresh air module comprises a wind guide cover having a ventilation opening at one end and communicating with the fresh air inlet, and a wind guide channel formed in the wind guide cover; an air induction assembly connected to the wind guide cover, wherein an air inlet end of the air induction assembly communicates with the wind guide channel, and an air outlet end of the air induction assembly communicates with the fresh air outlet; a purification assembly arranged in the wind guide channel; and a fixing seat connected to the fresh air module and connected to the bottom plate.

[0008] The air conditioner indoor unit according to the embodiment of the present application, the fresh air module composed of the air deflector, the air guide assembly and the purification assembly is compactly modularized, which not only can smoothly send the fresh air outside into the indoor after purification, but also can be quickly assembled to the bottom plate through the fixing seat. The fresh air module is convenient to assemble and disassemble, compact in structure, stable in work after assembly and not prone to abnormal sound. The air conditioner indoor unit is particularly suitable for square air conditioner indoor units.

[0009] The air conditioner indoor unit according to one embodiment of the present application, the air deflector comprises a first air deflector and a second air deflector which are detachably connected, the air guide assembly comprises a fan shell and a fan, the fan is arranged in the fan shell, the first air deflector is respectively arranged on the surface of the fan shell and the second air deflector, and part of the second air deflector is arranged on the fan shell.

[0010] Optionally, one of the first air deflector and the second air deflector is provided with a buckle, and the other is provided with a clamping groove, and the buckle is matched in the clamping groove; and / or the first air deflector and the second air deflector are connected through a first fastener.

[0011] Optionally, the fan is a centrifugal fan, the fan shell comprises a first volute and a second volute, the first volute and the second volute are detachably connected, one end of the first volute towards the first air deflector forms the air inlet end, and one end of the second volute towards the fresh air outlet forms the air outlet end.

[0012] Optionally, the fan shaft of the centrifugal fan is perpendicular to the bottom plate.

[0013] Advantageously, one side of the fixing seat towards the air guide assembly is provided with a positioning groove, and part of the surface of the second volute protrudes and is limited in the positioning groove.

[0014] Optionally, a slot is arranged in the first air deflector close to the air inlet end, and the purification assembly is inserted in the slot.

[0015] According to a further embodiment of the present application, the fresh air module further comprises an air outlet connector, one end of the air outlet connector is inserted between the first air deflector and the fan shell, the first air deflector, the air outlet connector and the fan shell are connected through a second fastener, and the air outlet connector is communicated with the air outlet end and the fresh air outlet.

[0016] The air conditioner indoor unit according to one embodiment of the present application, the fresh air module further comprises an air inlet control assembly, the air inlet control assembly is arranged at the air vent, and the air inlet control assembly controls the opening size of the air vent.

[0017] Optionally, the air inlet control assembly comprises a rotatable valve and a first motor, the first motor drives the valve to rotate relative to the air deflector to adjust the opening degree of the air vent.

[0018] Optionally, the fresh air module further comprises a humidity sensor, the humidity sensor is arranged in the air deflection channel close to the air vent to detect the humidity of the fresh air entering the air deflection channel, and the air inlet control assembly closes the air vent when the humidity is greater than a preset humidity threshold.

[0019] According to an embodiment of the air conditioner indoor unit, the shell is further provided with an indoor air inlet, and the indoor air inlet is arranged close to the fresh air outlet.

[0020] According to some embodiments of the air conditioner indoor unit, the air conditioner indoor unit is a square cabinet machine.

[0021] According to an embodiment of the air conditioner, the air conditioner comprises the air conditioner indoor unit in the foregoing embodiments.

[0022] According to an embodiment of the air conditioner, the air conditioner has the air conditioner indoor unit in the foregoing embodiments, the fresh air module has compact structure and is easy to install, can continuously supply fresh air required by the indoor, and has high practicability.

[0023] According to an embodiment of the control method of the air conditioner indoor unit, the air conditioner indoor unit is provided with a fresh air module, the fresh air module is provided with an air vent for air induction, the opening degree of the air vent is adjustable, and the fresh air module comprises an air induction assembly for air induction.

[0024] According to an embodiment of the control method of the air conditioner indoor unit, by detecting the humidity of the outdoor air newly introduced into the fresh air module, the opening degree of the air vent can be controlled according to the humidity value, and the working state of the air induction assembly can be adjusted according to the humidity value, so as to ensure that the fresh air module works at a suitable fresh air humidity threshold, guarantee the working performance of the fresh air module, prolong the service life of the fresh air module, and effectively prevent the humidity of the outdoor air introduced into the fresh air module from being too large to cause a large amount of condensate water when the fresh air is discharged, thereby affecting the surrounding environment.

[0025] Additional aspects and advantages of the present application will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0027] Figure 1 A side view of an air conditioner indoor unit according to an embodiment of the present application.

[0028] Figure 2 A rear view of an air conditioner indoor unit according to an embodiment of the present application.

[0029] Figure 3 A longitudinal sectional view of an air conditioner indoor unit according to an embodiment of the present application.

[0030] Figure 4 A sectional view along line A-A in Figure 3

[0031] Figure 5 A schematic view of an air conditioner indoor unit without an air inlet grille in Figure 3

[0032] Figure 6 A sectional view along line B-B in Figure 5

[0033] Figure 7 A schematic view of a fresh air module mounted on a fixing seat according to an embodiment of the present application.

[0034] Figure 8 An exploded view of the fresh air module and the fixing seat in Figure 7

[0035] Figure 9 A top view of the fresh air module in Figure 7

[0036] A sectional view of the fresh air module in Figure 10 Figure 7

[0037] Reference Signs:

[0038] 1000, air conditioner indoor unit;

[0039] 100, cabinet; 102, fresh air inlet; 103, fresh air outlet; 104, indoor air inlet; 105, mounting cavity; 106, heat exchange cavity;

[0040] 110, air outlet frame component; 120, panel component;

[0041] 150, rear shell; 160, top cover; 170, bottom plate;

[0042] 200, fresh air module;

[0043] 210, air guide cover; ​​​​​​

[0044] 211, first air deflector; 2111, slot;

[0045] 212, second air deflector;

[0046] 213, air vent; 214, air deflection channel;

[0047] 215, buckle; 216, buckle slot;

[0048] 220, air induction assembly;

[0049] 221, fan housing;

[0050] 2211, first volute; 2212, second volute; 2213, air inlet end; 2214, air outlet end;

[0051] 222, fan; 2221, direct current motor; 2222, motor fixing cover; 2223, centrifugal fan wheel;

[0052] 230, purification assembly;

[0053] 240, air outlet connector; 241, plug-in plate; 242, abutting rib; 243, overlapping edge;

[0054] 260, air inlet control assembly; 261, valve; 262, first motor;

[0055] 270, humidity sensor;

[0056] 300, fixing seat; 310, positioning groove;

[0057] 400, air inlet grille; 500, switch door component; 600, fan component. DETAILED DESCRIPTION

[0058] The embodiments of the present application will be described in detail below with reference to the drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and should not be understood as a limitation of the present application.

[0059] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application.

[0060] The air conditioner indoor unit 1000 according to an embodiment of the present application is described below with reference to the accompanying drawings of the specification. The air conditioner indoor unit 1000 according to the present application has a fresh air function and can be used in various indoor occasions such as living rooms, offices, laboratories, etc.

[0061] The air conditioner indoor unit 1000 according to an embodiment of the present application comprises a casing 100 as shown in Figure 1 , a fresh air module 200 and a fixing seat 300 as shown in Figure 7 .

[0062] As shown in Figure 2 , the casing 100 is provided with a fresh air inlet 102. As shown in Figure 1 , the casing 100 is further provided with a fresh air outlet 103. The casing 100 comprises a bottom plate 170. The fresh air inlet 102 can introduce fresh air from the outside, and the fresh air outlet 103 can discharge the purified fresh air into the room.

[0063] As shown in Figure 3 and Figure 5 , the fresh air module 200 is arranged in the casing 100. As shown in Figure 7 and Figure 8 , the fresh air module 200 comprises an air guide cover 210, an air guide assembly 220 and a purification assembly 230.

[0064] As shown in Figure 7 , Figure 8 and Figure 10 , one end of the air guide cover 210 is provided with an air passage 213 which is in communication with the fresh air inlet 102 in Figure 2 . As shown in Figure 8 and Figure 10 , an air guide channel 214 is formed in the air guide cover 210. The fresh air from the outside can be further introduced into the air guide channel 214 through the air passage 213 after being introduced from the fresh air inlet 102.

[0065] As shown in Figure 10 , the air guide assembly 220 is connected to the air guide cover 210. The air inlet end 2213 of the air guide assembly 220 is in communication with the air guide channel 214, and the air outlet end 2214 of the air guide assembly 220 is in communication with the fresh air outlet 103. The air guide assembly 220 can further guide the fresh air in the air guide channel 214 towards the fresh air outlet 103.

[0066] As shown in Figure 8 and Figure 10 , the purification assembly 230 is arranged in the air guide channel 214. The purification assembly 230 can filter the flowing fresh air, trap harmful impurities and dust, and improve the cleanliness of the fresh air.

[0067] As shown in Figure 5 and Figure 7As shown, the fresh air module 200 is connected to the fixing seat 300, and the fixing seat 300 is connected to the bottom plate 170, so that the fixing seat 300 can carry the fresh air module 200 and provide a mounting site for the fresh air module 200.

[0068] As can be seen from the above structure, the fresh air module 200 composed of the air guide cover 210, the air guide assembly 220 and the purification assembly 230 is compactly arranged in a modular manner. When the air guide assembly 220 works, the fresh air can be introduced from the fresh air inlet 102 to the air outlet 213, and then be guided from the air outlet 213 along the air guide channel 214 to the purification assembly 230 to be purified. The clean air after purification is further introduced from the air inlet end 2213 of the air guide assembly 220 to the air outlet end 2214, and then discharged from the air outlet end 2214 to the fresh air outlet 103, so as to provide the required clean fresh air for the indoor and improve the indoor air quality.

[0069] When the air guide assembly 220 guides air, the air guide cover 210 is always stable relative to the air guide assembly 220, the air guide cover 210 is not easy to shake and the air guide cover 210 is not easy to deform, so as to ensure that the air guide channel 214 formed in the air guide cover 210 always maintains good flow capacity and continuously supplies the required fresh air for the air guide assembly 220. The air guide cover 210 can be reasonably designed in shape and connection position according to the fresh air inlet 102 on the cabinet 100, the reserved space in the cabinet 100 and the position of the air inlet end 2213 of the air guide assembly 220, so as to stably provide the required air volume of fresh air for the air guide assembly 220 and ensure that the structure of the entire fresh air module 200 is compact.

[0070] The modular fresh air module 200 can be quickly assembled to the bottom plate 170 through the fixing seat 300, the fresh air module 200 is convenient to disassemble and assemble, has a compact structure, and is stable in work after assembly and not easy to produce abnormal sound. The bottom plate 170 supports the entire cabinet 100 and effectively fixes the entire fresh air module 200, the center of gravity of the fresh air module 200 is stable, the space occupied is small, the fresh air module 200 is convenient to add in the cabinet 100 and does not affect the arrangement of other heat exchange components in the air conditioner indoor unit 1000. The air conditioner indoor unit 1000 is especially suitable for a square cabinet.

[0071] It can be understood that, compared with arranging the fresh air device in a circular cabinet, the fresh air module 200 arranged in the square cabinet can be compactly arranged in a modular manner, the fresh air module 200 is convenient to disassemble and assemble, can fit the reserved space in the square cabinet and can fully utilize the wide cross-sectional dimension of the square cabinet, so that the square cabinet has a compact, beautiful and stable fresh air function.

[0072] Optionally, the ventilation opening 213 and the fresh air inlet 102 are directly communicated through the air guide cover 210, and the fresh air inlet 102 can be communicated with the outdoor through an air pipe. The appearance of the whole machine is beautiful, and the fresh air pipe is conveniently arranged and led to the outdoor.

[0073] Optionally, the shape of the fixing seat 300 is matched with the shape of the chassis 170, the fixing seat 300 and the chassis 170 are detachably connected through bolts and threads, or the fixing seat 300 and the chassis 170 are detachably connected through clamping and insertion, or the contact surfaces between the fixing seat 300 and the chassis 170 are directly welded.

[0074] In some embodiments of the present application, as shown in Figure 1 The indoor air inlet 104 is arranged near the fresh air outlet 103. The indoor air inlet 104 can introduce indoor air into the cabinet, and after heat exchange under the action of related components in the cabinet 100, the indoor air is discharged to the indoor, forming a circulating heat exchange of indoor air, so as to change the temperature of indoor air and improve comfort. In these examples, the air discharged from the fresh air outlet 103 can be quickly sucked into the cabinet 100 by the indoor air inlet 104 for heat exchange, thereby reducing the influence of the new air entering the indoor on the indoor temperature, and avoiding the large fluctuation of the indoor temperature caused by directly introducing a large amount of new air into the indoor.

[0075] Advantageously, as shown in Figure 1 The air inlet grille 400 is arranged near the indoor air inlet 104 of the cabinet 100, so as to effectively trap the hair entering the indoor air inlet 104 from the indoor air inlet 104, and prevent family members from putting their hands into the indoor air inlet 104 and being injured by touching the internal working components.

[0076] Optionally, as shown in Figure 3 The indoor air inlet 104 is arranged on the left side and the right side of the cabinet 100, and the fresh air outlet 103 is arranged at the lower part of the indoor air inlet 104. In these examples, the fresh air outlet 103 is arranged without additionally opening an outlet on the cabinet 100, but directly occupying part of the original arrangement position of the indoor air inlet 104, which reduces the design concession required when the new air module 200 is added, and reduces the processing cost.

[0077] In some embodiments of the present application, as shown in Figure 7 and Figure 8 The air guide cover 210 includes a first air guide cover 211 and a second air guide cover 212 which are detachably connected, as shown in Figure 8As shown, the air induction assembly 220 includes a fan shell 221 and a fan 222 arranged in the fan shell 221, the first air guide cover 211 is respectively arranged on the surface of the fan shell 221 and the second air guide cover 212, and part of the second air guide cover 212 is arranged on the fan shell 221. In these examples, the first air guide cover 211, the second air guide cover 212, and the fan shell 221 cooperate with each other and form a relatively closed air guide channel 214 inside, which saves the material required for the air guide cover 210 and is conducive to the lightweight design of the fresh air module 200. The first air guide cover 211 and the second air guide cover 212 can fully exert their design advantages, fit the inner wall of the machine shell 100, and at the same time, form a complete air guide channel 214 between the fresh air inlet 102 and the air induction assembly 220. The overall structure is stable, and the air guide cover 210 is not easy to deform during air induction, so that the air pressure in the air guide channel 214 is guaranteed, and the air flow of the air guide channel 214 is controllable, so that the air induction capacity of the air induction assembly 220 is guaranteed, and finally the amount of fresh air blown out from the air induction assembly 220 to the fresh air outlet 103 is controllable. In addition, since the first air guide cover 211 and the second air guide cover 212 are detachably connected, it is convenient to adjust the position of the air guide cover 210 relative to the fan shell 221, and the connection between the air guide cover 210 and the fan shell 221 is more convenient. Since the air guide cover 210 is connected to the fan shell 221, as long as the fan shell 221 is fixed to the fixed seat 300, the position of the air guide cover 210 relative to the fixed seat 300 and the machine shell 100 is stable. The air guide cover 210 arranged on the fan shell 221 can further ensure that the fan shell 221 does not collide with the machine shell 100, improve the stability of the operation of the air induction assembly 220, and reduce the diffusion of the working noise of the fan 222 in the fan shell 221 to a certain extent.

[0078] In the above examples, the overlapping parts of the first air guide cover 211, the second air guide cover 212, and the fan shell 221 should fit together to reduce the gap and ensure tight connection.

[0079] Of course, in other examples, the connection relationship between the air guide cover 210 and the fan shell 221 can also not be limited to the above form. For example, the first air guide cover 211 and the second air guide cover 212 can directly form a closed air guide channel 214, and the inner wall of the air guide channel 214 does not need to include the fan shell 221. At this time, only an outlet is needed to be arranged on the air guide cover 210, the air guide cover 210 is connected to the air inlet end 2213 of the fan shell 221, and the outlet is aligned with the air inlet end 2213, so that the fresh air in the air guide channel 214 can be introduced into the fan shell 221.

[0080] Optionally, as Figure 8 and Figure 10As shown, one of the first and second air scoops 211 and 212 is provided with a buckle 215 and the other is provided with a clamping groove 216, and the buckle 215 is matched in the clamping groove 216. After the buckle 215 and the clamping groove 216 are matched, a stable positioning connection is formed, so that the first and second air scoops 211 and 212 are convenient to assemble and can be repeatedly disassembled.

[0081] Alternatively, the first and second air scoops 211 and 212 are connected by a first fastener. At this time, the first and second air scoops 211 and 212 can be respectively provided with through holes, and the first fastener adopts a bolt and a nut, the bolt passes through the two through holes and is matched with the nut, so as to realize the detachable connection of the first and second air scoops 211 and 212. Alternatively, one of the first and second air scoops 211 and 212 can be provided with a through hole, and the other can be provided with a stud, and the first fastener adopts a bolt, the bolt passes through the through hole and is connected in the stud, so as to realize the detachable connection of the first and second air scoops 211 and 212.

[0082] Alternatively, in the above-mentioned first fastener connection scheme, one of the first and second air scoops 211 and 212 can be provided with a positioning column, and the other can be provided with a positioning hole, and the positioning column is positioned in the positioning hole, so as to provide a predetermined position for the fixed connection of the first fastener. Alternatively, in the first fastener scheme, the above-mentioned buckle 215 and clamping groove 216 scheme can also realize the pre-positioning fixation, which is not limited here.

[0083] In the description of the present application, the features defined as "first" and "second" can be explicitly or implicitly included one or more of the features, for distinguishing the description features, without order and without difference.

[0084] Alternatively, the fan 222 is a centrifugal fan, and the use of the centrifugal fan can change the air inlet direction and the air outlet direction, so that the arrangement of the fresh air module 200 is more flexible, and the relative position between the fresh air inlet 102 and the fresh air outlet 103 can be adjusted, which is beneficial to the appearance adjustment of the whole machine according to the needs of the casing 100 of the air conditioner indoor unit 1000.

[0085] Alternatively, as shown in the figure, Figure 8 The fan 222 includes a direct current motor 2221 and a centrifugal impeller 2223, the direct current motor 2221 provides a stable driving force for the centrifugal impeller 2223, so that the centrifugal impeller 2223 stably rotates and introduces the outdoor fresh air into the indoor.

[0086] Advantageously, as shown in the figure, Figure 8As shown, the fan 222 further comprises a motor fixing cover 2222 fixed between the centrifugal fan wheel 2223 and the DC motor 2221, which can provide support for the arrangement of the centrifugal fan wheel 2223, and position the DC motor 2221 in the fan shell 221 to ensure stable operation of the fan 222.

[0087] Optionally, as shown in Figure 8 As shown, the fan shell 221 comprises a first volute 2211 and a second volute 2212, which are detachably connected, the first volute 2211 forms an air inlet end 2213 at one end thereof towards the first air baffle 211, and the second volute 2212 forms an air outlet end 2214 at one end thereof towards the fresh air outlet 103. In these examples, the fan 222 can be arranged on the second volute 2212 first, and then the first volute 2211 is connected to the second volute 2212, which facilitates careful observation during installation of the fan 222 and facilitates operation of the staff, thereby making the fan 222 easy to assemble and disassemble relative to the fan shell 221, and facilitating maintenance.

[0088] Advantageously, in combination with Figure 3 , Figure 8 As shown, the fan shaft of the centrifugal fan is perpendicular to the chassis 170, that is, the centrifugal fan is arranged in a horizontal manner in the casing 100. Such an arrangement makes full use of the bottom space of the casing 100 without occupying more upper space of the casing 100, which is beneficial for size optimization of the entire machine, especially for a square cabinet machine, the size of the cross section formed by the length direction and the width direction is much larger than that of a circular cabinet machine, and the height of the square cabinet machine is lower than that of the circular cabinet machine. Therefore, the centrifugal fan of the present application adopts the above-mentioned arrangement, which makes the fresh air module 200 more suitable for the square air conditioner indoor unit 1000, effectively utilizes the size of the air conditioner indoor unit 1000 in the length, width and height directions, and leaves sufficient space in the upper part of the air conditioner indoor unit 1000 for arranging the heat exchanger and other components. In addition, such an arrangement also makes the center of gravity of the centrifugal fan lower relative to the chassis 170, and the centrifugal fan works more stably.

[0089] Optionally, as shown in Figure 8 As shown, the fixing seat 300 is provided with a positioning groove 310 on the side thereof facing the air guiding assembly 220, and part of the surface of the second volute 2212 protrudes and is limited in the positioning groove 310, so that the second volute 2212 is stably and pre-positioned relative to the fixing seat 300.

[0090] Optionally, in order to further improve the connection stability between the fixing seat 300 and the second volute 2212, a bolt or other component can be further added to realize detachable connection.

[0091] Optionally, in combination with Figure 7 and Figure 8 As shown in the drawings, the first air guide cover 211 is provided with a slot 2111 near the air inlet end 2213, and the purification assembly 230 is inserted into the slot 2111, which facilitates the quick fitting of the purification assembly 230 in the slot 2111, and cleaning, replacement or installation is more convenient. After the purification assembly 230 is inserted into the slot 2111, it is close to the air inlet end 2213, which can ensure that the fresh air entering the air guide assembly 220 can be effectively filtered, so that the cleanliness of the fresh air drawn out of the fresh air outlet 103 in the air guide assembly 220 is guaranteed, and the indoor air quality is ensured.

[0092] Advantageously, the slot 2111 forms an inclined slot 2111, that is, the slot 2111 forms a certain installation inclination with the face where the fixing seat 300 is located, and the purification assembly 230 is inserted into the slot 2111 at an inclination, thereby increasing the filtering surface when the air flows through the air guide channel 214 into the air inlet end 2213, and improving the filtering effect.

[0093] Optionally, the purification assembly 230 is made modular, for example, a drawer type frame can be provided, and the filter membrane or filter core and other purification functional components are fixed in the frame, and then the frame together with the purification functional components is inserted into the aforementioned slot 2111, which facilitates assembly and replacement of the filter membrane and filter core. The filter membrane here can be a plurality of stacked layers to increase the maximum purification capacity. The filter membrane here can also be a composite filter membrane, so that different target substances can be removed. The filter core here can be a whole air filter core, which facilitates assembly and traps dust and harmful gases in the air filter core.

[0094] Optionally, as shown in Figure 8 and Figure 9 The fresh air module 200 further comprises an air outlet connector 240, one end of the air outlet connector 240 being connected between the first air guide cover 211 and the fan shell 221, the first air guide cover 211, the air outlet connector 240 and the fan shell 221 being connected by a second fastener, and the air outlet connector 240 being connected with the air outlet end 2214 and the fresh air outlet 103. By providing the air outlet connector 240, the purified fresh air can be sent into the air outlet connector 240 under the guidance of the air guide assembly 220, and flow along the air outlet connector 240 to the fresh air outlet 103, which improves the flexibility of fresh air outlet and makes the fresh air concentrated and aligned with the fresh air outlet 103. The shape of the air outlet connector 240 is not easy to change during air guide and exhaust, so the air guide flux can be continuously maintained at a preset value, ensuring that the fresh air outlet is controllable and stable.

[0095] Optionally, the second fastener herein can be a screw or a bolt and a nut. When it is a screw, a threaded mounting post can be provided on the fan shell 221, and a through hole can be provided on the first air deflector 211 and the air outlet joint 240, and the screw is connected in the mounting post through the through hole to form a connection. When it is a bolt and a nut, a threaded through hole can be provided on the fan shell 221, and a through hole can be provided on the first air deflector 211 and the air outlet joint 240, and the bolt is connected with the nut through the through hole and the threaded through hole.

[0096] In specific examples, as shown in Figure 8 and Figure 9 , the air outlet joint 240 is provided with a plug-in plate 241, which is arranged at an angle with the main body through pipe of the air outlet joint 240, and is plugged between the first air deflector 211 and the fan shell 221, so that the entire air outlet joint 240 is arranged between the first air deflector 211 and the fan shell 221.

[0097] Advantageously, as shown in Figure 8 , the side of the fixing seat 300 facing the air outlet joint 240 is provided with a first limiting groove, and the part of the air outlet joint 240 close to the air outlet end 2214 protrudes downward to form an abutting rib 242, which is fitted in the first limiting groove, so as to realize the relative stability of the air outlet joint 240 relative to the fixing seat 300.

[0098] Advantageously, as shown in Figure 8 and Figure 9 , the opposite sides of the air outlet end 2214 of the fan shell 221 are also provided with second limiting grooves extending in the up-down direction, and the first air deflector 211 is provided with corresponding third limiting grooves, the second limiting grooves and the third limiting grooves are communicated in the up-down direction, and the opposite sides of the air outlet joint 240 form lap edges 243, which are limited in the second limiting grooves and the third limiting grooves, so as to realize the close contact of the fan shell 221 and the air outlet joint 240, and effectively reduce the air leakage probability.

[0099] Optionally, the fresh air outlet 103 is formed by the air outlet of the air outlet joint 240, and at the same time, when the air outlet joint 240 is stretched out to the machine shell 100, the fresh air outlet 103 is automatically formed.

[0100] In some embodiments of the present application, as shown in Figure 4 and Figure 8 , the fresh air module 200 further comprises an air inlet control assembly 260, as shown in Figure 8 and Figure 10 , the air inlet control assembly 260 is provided at the air vent 213 and controls the opening size of the air vent 213. In these examples, by controlling the working of the air inlet control assembly 260, the opening size of the air vent 213 can be effectively changed, so as to effectively change the air volume of the fresh air entering the air vent 213.

[0101] Optionally, as shown in Figure 8 the air inlet control assembly 260 comprises a rotatable valve 261 and a first motor 262, the first motor 262 drives the valve 261 to rotate relative to the air deflector 210 to adjust the opening degree of the air vent 213, that is, when the valve 261 coincides with the plane of the air vent 213 and is located in the same plane, the opening degree of the air vent 213 is zero, when the valve 261 is arranged at an angle with the plane of the air vent 213, the air vent 213 can ventilate, and when the valve 261 is perpendicular to the plane of the air vent 213, the ventilation amount of the air vent 213 is maximum. The first motor 262 drives the valve 261 to rotate to change the opening degree, which is simple in structure, continuous in opening degree adjustment, and accurate in ventilation amount control.

[0102] Advantageously, the cross section of the air vent 213 is circular, the cross section of the valve 261 is circular, the valve 261 is rotatably arranged on the center line of the air vent 213 through a rotating shaft, and the motor shaft of the first motor 262 drives the rotating shaft of the valve 261 to rotate to adjust the opening degree of the valve 261 relative to the air vent 213.

[0103] Optionally, as shown in Figure 6 and Figure 9 the first motor 262 is arranged at the top of the first air deflector 211, which is stable in arrangement position, and the first motor 262 drives the valve 261 to rotate to adjust the controllability, and the first motor 262 in this case adopts a rotating motor. In a specific example, the rotating motor adopts a stepping motor. It is also convenient to adjust the operation or shutdown of the first motor 262.

[0104] Of course, in other examples, the adjustment form of the valve 261 and the first motor 262 can also not be limited to the aforementioned rotating adjustment, for example, the valve 261 can also be adjusted by sliding relative to the air vent 213, and the opening degree of the air vent 213 can also be changed, and the first motor 262 in this case adopts a linear motor.

[0105] In some embodiments of the present application, as shown in Figure 8 and Figure 10As shown, the fresh air module 200 further comprises a humidity sensor 270 arranged in the air guide channel 214 close to the air vent 213 to detect the humidity value of the fresh air entering the air guide channel 214, and the air inlet control assembly 260 closes the air vent 213 when the humidity value is greater than a preset humidity threshold. In these examples, when the fresh air exceeds the preset humidity threshold, the air inlet control assembly 260 closes the air vent 213, thereby ensuring that the humidity of the fresh air introduced into the air guide assembly 220 is within a reasonable range, avoiding the influence of fresh air with excessive humidity on the purification performance of the purification assembly 230, and reducing the condensation water generated in the fresh air module 200 and at the fresh air outlet 103, ensuring that the surrounding environment is not wet or damp, and improving user satisfaction. The preset humidity threshold can be reasonably set according to actual needs.

[0106] Optionally, when the air inlet control assembly 260 closes the air vent 213, the fan 222 of the air guide assembly 220 stops working, at which time the entire fresh air module 200 stops sending in fresh air, and when the humidity of the fresh air returns to the preset humidity threshold range, the fresh air module 200 can be manually started to resume operation.

[0107] Optionally, a dehumidifier is arranged in the casing 100 close to the fresh air inlet 102, and when the humidity sensor 270 detects that the introduced fresh air exceeds the preset humidity threshold, the dehumidifier starts to work until the introduced fresh air is within the preset humidity threshold, and then the air guide assembly 220 is started again to introduce fresh air.

[0108] In some embodiments of the present application, as shown in Figure 2 , Figure 3 , Figure 5 As shown, the air conditioner indoor unit 1000 is a square cabinet machine, and the above-mentioned fresh air module 200 of the present application is added in the square cabinet machine, which has simple design and can retain more original design modules. The fresh air module 200 has compact structure, occupies less space, and has good fresh air supply capacity.

[0109] Optionally, the length of the fresh air module 200 is 400-450 mm, and specifically 430 mm can be selected; the width of the fresh air module 200 is 250-300 mm, and specifically 280 mm can be selected; and the height of the fresh air module 200 is 170-230 mm, and specifically 200 mm can be selected. Optionally, the inner diameter of the air vent 213 is about 70 mm, and the diameter of the centrifugal fan wheel 2223 is 175-205 mm. The structure of the entire fresh air module 200 is compact, easy to add, and suitable for arrangement in a square cabinet machine.

[0110] Optionally, as shown in Figure 1 The casing 100 comprises a rear shell 150 and an air outlet frame component 110, the air outlet frame component 110 is connected to the front side of the rear shell 150, and the rear shell 150 and the air outlet frame component 110 define an air guide channel 214 therebetween.Figure 3 The installation cavity 105 and the heat exchange cavity 106 are shown. Figure 3 The heat exchange cavity 106 is shown, and the fresh air module 200 is arranged in the installation cavity 105, and the heat exchanger, the fan component 600 and the air duct component are arranged in the heat exchange cavity 106. In these examples, the air conditioner indoor unit 1000 has both the function of providing functional gas for the room and the function of adjusting the temperature of the room. When the air in the room is introduced into the heat exchange cavity 106 by the fan component 600, the airflow will be quickly heat exchanged with the heat exchanger to form hot or cold air, and then discharged to the room through the air duct component, so that the air in the room is continuously circulated and heat exchanged, maintained within a predetermined temperature range, and the human body is comfortable. The rear shell 150 and the air outlet frame component 110 jointly define the installation cavity 105 for assembling the fresh air module 200 and the heat exchange cavity 106 for assembling the heat exchange components, which is conducive to rapid assembly.

[0111] Optionally, the installation cavity 105 and the heat exchange cavity 106 are formed as independent chambers, and at this time, the fresh air outlet can be designed to have a larger air outlet volume to quickly provide a large amount of fresh air for the room; and in the specific example in which the fresh air outlet 103 is arranged close to the room air inlet 104, these fresh air can be further sucked into the heat exchange cavity 106 and then discharged from the outdoor air outlet after heat exchange.

[0112] Optionally, the installation cavity 105 and the heat exchange cavity 106 are connected, and at this time, the fresh air outlet can be heat exchanged by the heat exchanger of the heat exchange cavity 106 and then discharged into the room, so that the temperature of the fresh air entering the room does not have a large impact on the existing temperature in the room, and the temperature in the room remains stable.

[0113] Optionally, as shown in Figure 1 The machine shell 100 further includes a top cover 160 covering the top of the air outlet frame component 110 to close the top of the heat exchange cavity 106. The bottom disc 170 is connected to the bottom of the air outlet frame component 110 to bear the weight of the entire machine, so that the entire machine is stably placed in the room.

[0114] Optionally, the fan component 600 can be one or a combination of a cross-flow fan, a centrifugal fan, an inclined-flow fan, an axial-flow fan, and a counter-rotating fan, which can be selected according to actual needs. For example, in some specific examples, as shown in Figure 3 The fan component 600 includes a centrifugal fan and a volute, and the shaft axis of the fan shaft of the centrifugal fan is parallel to the bottom disc 170, so that the indoor air introduced from the side of the machine shell 100 can be blown in the up-down direction of the machine shell 100.

[0115] Optionally, as shown in Figure 4 and Figure 6 The machine shell 100 further includes a panel component 120 arranged outside the air outlet frame component 110 to improve the appearance of the entire machine.

[0116] Optionally, the indoor air outlet can be arranged on the side of the air outlet frame component 110, and the indoor air outlet can also be arranged on the panel component 120, so as to stably send air to the indoor, and the position of the indoor air outlet can be designed according to actual needs.

[0117] Optionally, as shown in Figure 1 The air conditioner indoor unit 1000 further comprises a switch door component 500 movably arranged on the indoor air outlet, so as to close the indoor air outlet when the air conditioner indoor unit 1000 is not working, improve the appearance and use safety of the whole machine, and also avoid external dust from entering the air conditioner indoor unit 1000.

[0118] Optionally, the switch door component 500 can rotate or slide relative to the air outlet frame component 110, and the driving component for controlling the movement of the switch door component 500 is a conventional component, which is not described here.

[0119] Optionally, a wind guide component is arranged at the indoor air outlet, and the wind guide component comprises a plurality of rotatable wind guide blades, so as to provide a certain guiding effect for the indoor air outlet. For example, in summer, the hot air can be blown downward by adjusting the wind guide blades downward; for example, in winter, the cold air can be blown upward by adjusting the wind guide blades upward, so that the temperature regulation of the whole indoor is more uniform, and the heat exchange efficiency is improved.

[0120] The air conditioner of the embodiment of the present application is described below.

[0121] According to the air conditioner of the embodiment of the present application, the air conditioner indoor unit 1000 in the foregoing examples is included.

[0122] From the above structure, it can be seen that the air conditioner of the embodiment of the present application has the air conditioner indoor unit 1000 of the foregoing embodiment, the fresh air module 200 has compact structure and is easy to install, and can continuously supply the required fresh air to the indoor, and the whole machine has high practicability.

[0123] As known by those skilled in the art, the air conditioner indoor unit 1000 can be connected to the air conditioner outdoor unit through a refrigerant conveying pipe, and the refrigerant is heated or cooled under the action of the compressor, the outdoor heat exchanger and the throttling element in the air conditioner outdoor unit, so as to make the air conditioner indoor unit 1000 to blow cold air or hot air.

[0124] The control method of the air conditioner indoor unit 1000 of the embodiment of the present application is described below.

[0125] According to the control method of the air conditioner indoor unit 1000 of the embodiment of the present application, the air conditioner indoor unit 1000 is provided with a fresh air module 200, the fresh air module 200 is provided with an air inlet 213 capable of guiding air, the opening degree of the air inlet 213 is adjustable, and the fresh air module 200 comprises an air guide assembly 220 capable of guiding air.

[0126] Optionally, an air inlet control assembly 260 can be arranged at the ventilation opening 213 to realize adjustable opening degree, and the structure of the air inlet control assembly 260 is consistent with the foregoing examples, which will not be described here.

[0127] The control method comprises the following steps:

[0128] Step S1, detecting a humidity value of fresh air introduced into the fresh air module 200 from the ventilation opening 213.

[0129] Optionally, the humidity value of the fresh air can be monitored in real time by arranging a humidity sensor 270. The humidity sensor 270 can be arranged in the fresh air module 200 or in a pipeline through which outdoor air is communicated with the fresh air module 200.

[0130] In one specific example, the fresh air module 200 comprises the air guide cover 210, the air guide assembly 220 and the purification assembly 230 in the foregoing examples, the air guide cover 210 is provided with the air guide channel 214, and the structures of the air guide cover 210, the air guide assembly 220 and the purification assembly 230 are consistent with those in the foregoing examples, which will not be described here. The humidity sensor 270 is arranged in the air guide channel 214 to monitor the humidity value of fresh air introduced into the air guide cover 210 in real time.

[0131] Step S2, judging whether the humidity value is within a preset humidity threshold.

[0132] Here, a judgment module can be additionally arranged, and the humidity threshold can be preset. The judgment module compares the humidity value detected by the humidity sensor 270 in real time with the preset humidity threshold, and transmits the comparison result to the control module to form a control signal.

[0133] Step S3, if yes, the ventilation opening 213 keeps the original opening degree or increases the opening degree, and the air guide assembly 220 keeps air guiding.

[0134] In these examples, when the control module forms an instruction of increasing the opening degree of the ventilation opening 213, the valve 261 can be rotated to a position with a larger included angle between the ventilation opening 213 and the surface on which the ventilation opening 213 is arranged to realize the increase of the opening degree. When the control module forms an instruction of keeping air guiding by the air guide assembly 220 and increasing the fresh air volume, the fan 222 can be controlled to increase the rotating speed to increase the air volume of air guiding.

[0135] Step S4, if no, decreasing the opening degree until the ventilation opening 213 is closed, and controlling the air guide assembly 220 to stop air guiding.

[0136] In these examples, the control module forms an instruction of reducing the opening degree of the air vent 213, which can be achieved by controlling the valve 261 to rotate to a position with a smaller angle with the surface where the air vent 213 is located; and the control module forms an instruction of the opening degree of the air vent 213 being zero, which can be achieved by controlling the valve 261 to rotate to a position tending to coincide with the surface where the air vent 213 is located. When the control module forms an instruction of stopping the air induction assembly 220 from inducing air, the air induction amount of the air induction assembly 220 can be reduced by controlling the fan 222 to stop rotating.

[0137] From the above control method, it can be seen that the control method of the air conditioner indoor unit 1000 of the embodiment of the present application can detect the humidity of the outdoor air newly introduced into the fresh air module 200, control the opening degree of the air vent 213 according to the size of the humidity value, and adjust the working state of the air induction assembly 220 according to the size of the humidity value, so as to ensure that the fresh air module 200 works at a suitable fresh air humidity threshold value, guarantee the working performance of the fresh air module 200, prolong the service life of the fresh air module 200, and effectively prevent the humidity of the outdoor air newly introduced into the fresh air module 200 from being too large to cause a large amount of condensate water to be generated when the fresh air is discharged, which affects the surrounding environment.

[0138] In the following, a specific structure of an air conditioner indoor unit 1000 and a control method thereof in one specific embodiment of the present application will be described with reference to the accompanying drawings. The embodiments of the present application can be combined with the above-mentioned technical solutions, and all the embodiments obtained by the combination fall within the protection scope of the present application.

[0139] An air conditioner indoor unit 1000 comprises a casing 100 as shown in Figure 1 , a fan component 600 as shown in Figure 3 , a fresh air module 200 and a fixing seat 300 as shown in Figure 7 .

[0140] The casing 100 comprises an air outlet frame component 110, a panel component 120, a rear shell 150, a top cover 160, and a bottom plate 170. The air outlet frame component 110 is connected to the front side of the rear shell 150, and the rear shell 150 and the air outlet frame component 110 define an installation cavity 105 as shown in Figure 3 and a heat exchange cavity 106 as shown in Figure 3 . The top cover 160 is arranged on the top of the air outlet frame component 110 to close the top of the heat exchange cavity 106, and the bottom plate 170 is connected to the bottom of the air outlet frame component 110. As shown in Figure 1 , the left and right side surfaces of the casing 100 are provided with indoor air inlets 104, and the front side of the casing 100 is provided with an indoor air outlet. As shown in Figure 2 , the rear shell 150 is provided with a fresh air inlet 102, and the left side surface of the casing 100 is provided with a fresh air outlet 103 close to the indoor air inlets 104.

[0141] AsFigure 3 As shown, a fresh air module 200 is installed inside the mounting cavity 105. Combined with... Figure 5 and Figure 7 As shown, the fresh air module 200 is connected to the mounting bracket 300, and the mounting bracket 300 is connected to the chassis 170. Figure 8 As shown, the fresh air module 200 includes an air guide hood 210, an air intake assembly 220, a purification assembly 230, an air outlet connector 240, an air inlet control assembly 260, and a humidity sensor 270. Among these, combined with... Figure 7 , Figure 8 and Figure 10 As shown, one end of the air guide shroud 210 is provided with a vent 213 and is connected to... Figure 2 The fresh air inlet 102 in the middle, such as Figure 8 and Figure 10 As shown, an air guide channel 214 is formed inside the air guide shroud 210.

[0142] like Figure 7 and Figure 8 As shown, the air guide shroud 210 includes a first air guide shroud 211 and a second air guide shroud 212 that are detachably connected via a snap fastener 215 and a slot 216, as... Figure 10 As shown, the air intake assembly 220 is connected to the air guide hood 210, the air inlet 2213 of the air intake assembly 220 is connected to the air guide channel 214, and the air outlet 2214 of the air intake assembly 220 is connected to the fresh air outlet 103. Figure 8 As shown, the air intake assembly 220 includes a fan housing 221 and a fan 222. The fan 222 is disposed in the fan housing 221. A first air guide shroud 211 covers the surface of the fan housing 221 and a second air guide shroud 212, respectively. A portion of the second air guide shroud 212 covers the fan housing 221. Figure 8 As shown, the fan 222 is a centrifugal fan consisting of a DC motor 2221 and a centrifugal impeller 2223, combined with... Figure 3 , Figure 8 As shown, the fan shaft of the centrifugal fan is perpendicular to the chassis 170.

[0143] like Figure 8 As shown, the fan housing 221 includes a first volute 2211 and a second volute 2212, which are detachably connected. The end of the first volute 2211 facing the first air guide shroud 211 forms an air inlet end 2213, and the end of the second volute 2212 facing the fresh air outlet 103 forms an air outlet end 2214.

[0144] like Figure 8 and Figure 10 As shown, the purification component 230 is located within the air guide channel 214, combined with... Figure 7 and Figure 8As shown, the first air deflector 211 is provided with a slot 2111 near the air inlet end 2213, and the purification assembly 230 is inserted into the slot 2111.

[0145] As shown, Figure 8 and Figure 9 As shown, one end of the air outlet connector 240 is inserted between the first air deflector 211 and the fan shell 221, and the first air deflector 211, the air outlet connector 240 and the fan shell 221 are connected by screws. The air outlet connector 240 connects the air outlet end 2214 and the fresh air outlet 103.

[0146] As shown, Figure 8 and Figure 10 As shown, the air inlet control assembly 260 is arranged at the air vent 213 to control the opening size of the air vent 213. Figure 8 As shown, the air inlet control assembly 260 includes a rotatable circular valve 261 and a first motor 262. The first motor 262 drives the valve 261 to rotate relative to the air deflector 210 to adjust the opening size of the air vent 213. The first motor 262 is arranged on the first air deflector 211.

[0147] As shown, Figure 8 and Figure 10 As shown, the fresh air module 200 further includes a humidity sensor 270 arranged in the air deflection channel 214 near the air vent 213 to detect the humidity value of the fresh air entering the air deflection channel 214. When the humidity value is greater than a preset humidity threshold, the air inlet control assembly 260 closes the air vent 213.

[0148] As shown, Figure 3 As shown, the heat exchange chamber 106 is provided with a heat exchanger, a fan component 600 and an air duct component. The fan component 600 is also a centrifugal fan, but the fan shaft of the centrifugal fan is parallel to the chassis 170. The centrifugal fan blows the air introduced from the indoor air inlet 104 towards the heat exchanger and the air duct component. The air after heat exchange is blown from the indoor air outlet to the indoor along the air duct component.

[0149] The control method of the above-mentioned air conditioner indoor unit 1000 includes the following steps:

[0150] Step S1, detecting the humidity value of the fresh air introduced into the fresh air module 200 from the air vent 213.

[0151] Step S2, determining whether the humidity value is within a preset humidity threshold.

[0152] Step S3, if yes, the air vent 213 maintains the original opening or increases the opening, and the air inlet assembly 220 is controlled to maintain the air inlet.

[0153] Step S4, if no, the opening is reduced until the air vent 213 is closed, and the air inlet assembly 220 is controlled to stop the air inlet.

[0154] In the description of the present application, it is necessary to point out that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0155] The heat exchange principle and the purification principle of the air conditioner in the air conditioner indoor unit 1000, the air conditioner, and the control method of the air conditioner indoor unit 1000 according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0156] In the description of the present application, the description referring to the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0157] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing, wherein a fresh air inlet and a fresh air outlet are provided on the housing, and the housing includes a chassis; A fresh air module, wherein the fresh air module is disposed within the housing, the fresh air module comprising: An air guide hood is provided at one end and is connected to the fresh air inlet, and an air guide channel is formed inside the air guide hood; An air intake assembly is connected to the air guide hood, the air inlet of the air intake assembly is connected to the air guide channel, and the air outlet of the air intake assembly is connected to the fresh air outlet. A purification component, wherein the purification component is disposed within the air guide channel; A mounting bracket is provided, on which the fresh air module is connected, and the mounting bracket is connected to the chassis. The air guide shroud includes a first air guide shroud and a second air guide shroud that are detachably connected. The air intake assembly includes a fan housing and a fan. The fan is disposed in the fan housing. The first air guide shroud covers the surface of the fan housing and the second air guide shroud respectively. A portion of the second air guide shroud covers the fan housing. The fan is a centrifugal fan, and the fan housing includes a first volute and a second volute, which are detachably connected. The end of the first volute facing the first air guide shroud forms the air inlet, and the end of the second volute facing the fresh air outlet forms the air outlet. The mounting base has a positioning groove on the side facing the air intake assembly, and a portion of the surface of the second volute protrudes and is confined within the positioning groove.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first air guide cover and the second air guide cover are provided with a buckle on one and a slot on the other, and the buckle is engaged in the slot; and / or the first air guide cover and the second air guide cover are connected by a first fastener.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The fan shaft of the centrifugal fan is perpendicular to the chassis.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The first air guide shroud has a slot near the air inlet, and the purification component is inserted into the slot.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The fresh air module also includes an air outlet connector, one end of which is inserted between the first air guide shroud and the fan housing. The first air guide shroud, the air outlet connector, and the fan housing are connected by a second fastener. The air outlet connector connects the air outlet end and the fresh air outlet.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, The fresh air module also includes an air intake control component, which is provided at the vent and controls the opening degree of the vent.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The air intake control assembly includes a rotatable valve and a first motor, the first motor driving the valve to rotate relative to the air guide shroud to adjust the opening of the vent.

8. The indoor unit of the air conditioner according to claim 6, characterized in that, The fresh air module also includes a humidity sensor, which is located near the vent and inside the air guide channel to detect the humidity of the fresh air entering the air guide channel. When the humidity is greater than a preset humidity threshold, the air intake control component closes the vent.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The casing is also provided with an indoor air inlet, which is located close to the fresh air outlet.

10. The indoor unit of an air conditioner according to any one of claims 1-9, characterized in that, The indoor unit of the air conditioner is a square cabinet unit.

11. An air conditioner, characterized in that, Including the air conditioning indoor unit according to any one of claims 1-10.

12. A control method for an indoor unit of an air conditioner according to any one of claims 1-10, characterized in that, The indoor unit of the air conditioner is equipped with a fresh air module, which has an adjustable air vent. The fresh air module includes an air intake component. The control method includes the following steps: The humidity value of the fresh air introduced into the fresh air module from the vent is detected; Determine whether the humidity value is within the preset humidity threshold. If so, the vent maintains its original opening or increases its opening, and controls the air intake component to maintain air intake. If not, reduce the opening until the vent is closed, and control the air intake assembly to stop ventilating.

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