An air conditioner and its air duct switching structure

Abstract

The present application provides an air conditioner and its air duct switching structure, which relates to the technical field of air conditioning devices. It includes a main channel and a movable cover. Among them, a first pair of interfaces and a second pair of interfaces are formed on the main channel, a sealing portion is formed between the first pair of interfaces and the second pair of interfaces, and a mating portion for cooperating with the sealing portion is formed on the movable cover. When performing air duct switching, the mating portion on the movable cover can be in sealing contact with the sealing portion to form a sealing structure that blocks the air flow from surging between the first pair of interfaces and the second pair of interfaces, improving the reliability of the operation of the air duct switching structure and the sealing performance of the movable cover, and avoiding air leakage when one of the first pair of interfaces and the second pair of interfaces is opened and the other is closed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning devices, and particularly to an air conditioner and its air duct switching structure. Background Art

[0002] Generally, different functional modules are built on an air conditioner, such as a humidification module, a fresh air module, etc. These modules enable the air conditioner to achieve different functions. In related technical solutions, the air duct structures of each module are coupled to a certain extent to save the precious internal space of the indoor unit of the air conditioner.

[0003] Specifically, in related technical solutions, the main channel is correspondingly docked with the air ducts of different modules through different docking ports. Among them, the on-off between each docking port and the main channel is controlled by the same movable cover. However, the sealing effect of the movable cover is poor. When one docking port is closed and the other docking port is opened, the air flow is likely to move through the gap of the movable cover, resulting in air leakage at the closed docking port, and further causing interference between different modules. Summary of the Invention

[0004] The present invention aims to provide an air conditioner and its air duct switching structure, which can effectively improve the sealing performance of the movable cover and solve the problem of air leakage at the docking port.

[0005] The solution adopted by the present invention to solve the above technical problems is as follows:

[0006] In a first aspect, the present application provides an air duct switching structure, including:

[0007] A main channel, the main channel is formed with a first docking port, a second docking port, and a sealing portion located between the first docking port and the second docking port;

[0008] A movable cover, a matching portion is formed on the movable cover, the movable cover has a first position and a second position. When the movable cover is in the first position, the first docking port is opened and the second docking port is closed. When the movable cover is in the second position, the first docking port is closed and the second docking port is opened; when the movable cover is in the first position or the second position, the sealing portion is in sealing contact with the matching portion to form a sealing structure that blocks the air flow from flowing between the first docking port and the second docking port.

[0009] In some embodiments of the present application, the first docking port and the second docking port are arranged in sequence along a first direction.

[0010] In some embodiments of the present application, the sealing portion is in the shape of a protrusion protruding relative to the first pair of interfaces and the second pair of interfaces, and at least a portion of the contact surface between the sealing portion and the matching portion is arranged at an angle to the first direction.

[0011] In some embodiments of the present application, the sealing portion includes a first sealing surface and a second sealing surface disposed opposite to each other, the first sealing surface faces the first mating interface, and the second sealing surface faces the second mating interface; the matching portion includes a first matching portion and a second matching portion sequentially formed on the movable cover along a first direction;

[0012] Wherein, when the movable cover is in the first position, the first sealing surface is in sealing contact with the first matching portion, and when the movable cover is in the second position, the second sealing surface is in sealing contact with the second matching portion.

[0013] In some embodiments of the present application, the first direction is a linear direction, and further includes a driving member, which is transmission-connected to the movable cover so that the movable cover can move back and forth linearly along the first direction, thereby switching between the first position and the second position.

[0014] In a second aspect, the present application further provides an air conditioner, comprising an indoor unit body, wherein the indoor unit body comprises an air duct structure, and the air duct structure comprises:

[0015] The air duct switching structure as described in the first aspect;

[0016] A fresh air channel, the inlet end of which is used to introduce fresh air from the outdoor environment, and the outlet end of which is connected to the first pair of ports;

[0017] A humidification channel, wherein the inlet end of the humidification channel is used to introduce air from the external environment, and the outlet end thereof is connected to the second docking port, and a humidification component is arranged in the humidification channel.

[0018] In some embodiments of the present application, the indoor unit body further includes:

[0019] Wind wheel;

[0020] A fan housing, wherein the wind wheel is arranged in the fan housing, and the fan housing has a housing inlet and a housing outlet;

[0021] Wherein, the outlet end of the main channel in the air duct structure is connected to the shell inlet.

[0022] In some embodiments of the present application, the number of components at the housing inlet is multiple, the number of components of the air duct structure corresponds to the number of components at the housing inlet, at least two housing inlets are respectively formed on opposite sides of the fan housing in the second direction, at least two sets of air duct structures are symmetrically arranged outside opposite sides of the fan housing in the second direction, and the outlet end of the main channel is communicated with the housing inlet on the same side.

[0023] In some embodiments of the present application, the fan housing is a volute, and the second direction is the axial direction of the volute.

[0024] In some embodiments of the present application, the humidifying member is a wet film, and the indoor unit body further includes:

[0025] A water tank configured to supply humidifying water to the wet film, and the wet film is installed on the water tank;

[0026] A water tank seat configured in a container shape with an open end, the water tank is received in the internal space of the water tank seat through the open end, the water tank seat at least partially defines the humidifying channel, and the water tank seat and the water tank jointly define an air outlet communicated with the inlet end of the humidifying channel.

[0027] Due to the adoption of the above technical solution, the beneficial effect of the present invention is:

[0028] The present application provides an air conditioner and its air duct switching structure, including a main channel, a plurality of docking ports and a movable cover. Among them, a sealing portion is formed between the first docking port and the second docking port, and a matching portion for cooperating with the sealing portion is formed on the movable cover. When performing air duct switching, the matching portion on the movable cover can be in sealing contact with the sealing portion to form a sealing structure that blocks the air flow from surging between the first docking port and the second docking port, improving the reliability of the operation of the air duct switching structure and the sealing performance of the movable cover, and avoiding air leakage when one of the first docking port and the second docking port is opened and the other is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0030] Figure 1 It is an exploded structural schematic diagram of some components of the indoor unit body in the embodiments provided by the present invention;

[0031] Figure 2 For Figure 1Partial enlarged schematic view at position A in [Chinese context];

[0032] Figure 3 Schematic view of the assembly position of the air duct structure and the volute in the embodiment provided by the present invention;

[0033] Figure 4 Schematic side view of some components of the indoor unit body in the embodiment provided by the present invention;

[0034] Figure 5 is Figure 4 Cross-sectional schematic view at A-A in [Chinese context], where the movable cover is in the first position;

[0035] Figure 6 is Figure 5 Partial enlarged schematic view at position B in [Chinese context];

[0036] Figure 7 Schematic view of the fresh air flow in the embodiment provided by the present invention;

[0037] Figure 8 is Figure 4 Cross-sectional schematic view at A-A in [Chinese context], where the movable cover is in the second position;

[0038] Figure 9 is Figure 8 Partial enlarged schematic view at position C in [Chinese context];

[0039] Figure 10 Schematic view of the humidified air flow in the embodiment provided by the present invention;

[0040] Figure 11 Schematic view of the structure of the movable cover in the embodiment provided by the present invention;

[0041] Figure 12 Cross-sectional view of the movable cover in the embodiment provided by the present invention.

[0042]

Specific symbol description

[0043] 100 - Air duct structure;

[0044] 110 - Fresh air duct;

[0045] 120 - Humidification duct, 121 - Wet film;

[0046] 130 - Main duct, 131 - First pair of interfaces, 132 - Second pair of interfaces, 133 - Left bracket, 134 - Right bracket;

[0047] 141 - Movable cover, 142 - Rotating shaft motor, 143 - Sealing part, 143a - First sealing surface, 143b - Second sealing surface, 144a - First mating part, 144b - Second mating part, 145 - Slide rail;

[0048] 211 - Wind turbine, 212 - Volute, 212a - Housing inlet, 212b - Housing outlet, 213 - Left housing, 214 - Right housing;

[0049] 221 - Water tank base, 222 - Water tank, 223 - Air outlet, 224 - Rear support. Specific embodiments

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or including the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0052] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or explanation". Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or more advantageous than other embodiments. To enable any person skilled in the art to implement and use the present invention, the following description is given. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed in this application.

[0053] Embodiment 1

[0054] The main body of this embodiment is an air conditioner, including an indoor unit body, and the indoor unit body is provided with a plurality of functional modules and an air duct switching structure for realizing the communication and switching between the plurality of functional modules. Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8 , in this embodiment, the air duct switching structure includes:

[0055] A main channel 130, the main channel 130 is formed with a first mating port 131 and a second mating port 132, and a sealing portion 143 located between the first mating port 131 and the second mating port 132;

[0056] A movable cover 141, a mating portion is formed on the movable cover 141, and the movable cover 141 is configured to be movable relative to the main channel 130 to reciprocate between a first position opening the first mating port 131 and a second position opening the second mating port 132;

[0057] When the movable cover 141 is in the first position or the second position, the sealing portion 143 is in sealing contact with the mating portion to form a sealing structure for blocking the flow of air between the first mating port 131 and the second mating port 132.

[0058] The above-mentioned main channel 130 is mainly used for the passage of air flow, while the first mating port 131 and the second mating port 132 are used to be docked with different functional modules, so that the main channel 130 can realize air intake or air supply. The movable cover 141 is used to control the on-off of the first mating port 131 and the second mating port 132.

[0059] Please refer to in detail Figure 5 、 Figure 6 and Figure 7 , when the above-mentioned movable cover 141 moves to the first position, the sealing portion 143 and the mating portion are in sealing contact, thereby forming a sealing structure, so that the flow of air between the first mating port 131 and the second mating port 132 is blocked, preventing air leakage when the second mating port 132 is closed by the movable cover 141. Similarly, when the above-mentioned movable cover 141 moves to the second position, the sealing portion 143 and the mating portion come into contact again to form a sealing structure to prevent air leakage when the first mating port 131 is closed by the movable cover 141.

[0060] The air duct switching structure provided in this embodiment effectively ensures the sealing between the closed docking interface and the movable cover 141 after the air duct is switched, avoiding the air flow crosstalk between the docking interfaces when the movable cover 141 closes the docking interface, and thus avoiding the mutual interference between the functional modules. At the same time, since the air leakage of the entire structure is reduced, the air flow rate in the main channel 130 is larger, which can meet the user's usage requirements.

[0061] Please refer to Figure 2 , in this embodiment, the above-mentioned first docking interface 131 and the second docking interface 132 are arranged in sequence along the first direction to simultaneously form one end of the main channel 130. It should be noted that the above-mentioned first docking interface 131 and the second docking interface 132 can be arranged in a circular pattern. For example, in another embodiment, the above-mentioned first docking interface 131 and the second docking interface 132 are arranged at intervals along the circumferential direction of a virtual circle. And the movable cover 141 is configured to be rotatable, so as to realize the on-off control of the first docking interface 131 and the second docking interface 132. At this time, the first direction is the circumferential direction, and configuring the first docking interface 131 and the second docking interface 132 in a circular arrangement pattern has a relatively high structural design difficulty, and the air duct structure 100 may have a special shape, thereby increasing the module cost of the air conditioner.

[0062] Therefore, in this embodiment, the above-mentioned first direction is a linear direction. Those skilled in the art can, as shown in this embodiment, configure the first direction to be parallel to the horizontal direction or parallel to the vertical direction. The present disclosure does not limit this.

[0063] Regarding the sealing portion 143 and the mating portion, the two are mainly used for sealing contact and then combined into a sealing structure. Those skilled in the art can match the two according to their own needs. For example, in another embodiment, the above-mentioned sealing portion 143 is a sealing surface flush with the first docking interface 131 and the second docking interface 132, and the mating portion is a sealing soft rubber. However, with this setting method, the movement mode and movement accuracy requirements for the movable cover 141 are relatively high. The movable cover 141 needs to ensure that the above-mentioned sealing surface can be in close contact with the sealing soft rubber when it is in the first position and the second position.

[0064] Therefore, please refer to Figure 6 and Figure 9 , in this embodiment, the sealing portion 143 has a protruding shape protruding relative to the first docking interface 131 and the second docking interface 132, and at least part of the contact surface between the sealing portion 143 and the mating portion is arranged intersecting with the first direction. Please refer to Figure 6 and Figure 9, when the contact surface between the two presents an angle with the first direction, even if there is an air flow passing through the contact surface between the two, the flow path of the air flow will present a tortuous pattern, and its fluidity is hindered. More specifically, please refer to again Figure 6 and Figure 9 , in this embodiment, the contact surface between the sealing portion 143 and the mating portion intersects the first direction at an angle of 90°. The implementer can set the above intersection method to an acute intersection or an obtuse intersection according to his own needs, and the present disclosure does not limit this.

[0065] More specifically, please refer to Figures 5 to 12 , in this embodiment, the sealing portion 143 includes a first sealing surface 143a and a second sealing surface 143b arranged back to back. The first sealing surface 143a faces the first docking port 131, and the second sealing surface 143b faces the second docking port 132; the mating portion includes a first mating portion 144a and a second mating portion 144b formed on the movable cover 141 in sequence along the first direction; when the movable cover 141 is in the first position, the first sealing surface 143a is in sealing contact with the first mating portion 144a, and when the movable cover 141 is in the second position, the second sealing surface 143b is in sealing contact with the second mating portion 144b.

[0066] In this embodiment, a plurality of mating parts are provided to contact different sealing surfaces on the sealing portion 143 respectively to form a sealing structure. By setting like this, the movable cover 141 can establish a sealing structure at different positions only by simple movement, avoiding the complex movement track of the movable cover 141 caused by only one mating portion being provided on the movable cover 141. In addition, please refer to Figure 11 and Figure 12 , in this embodiment, the cross-section of the structure formed by the part of the movable cover 141 including the first mating portion 144a and the second mating portion 144b presents an I-shaped shape. By setting like this, the structural strength of the movable cover 141 can be improved. In addition, in this embodiment, the flow direction of the air flow is specifically along the docking port to the main channel, and the amount of air fluid that has flowed into the main channel and then flows back to the docking port closed by the movable cover 141 is very small. Therefore, no other sealing positions are provided on the first mating portion 144a and the second mating portion 144b of the movable cover 141 to reduce the requirements for the movement track of the movable cover 141. In addition, in another embodiment, the direction of the air flow is configured to be along the main channel 130 to the docking port, and the movable cover 141 is correspondingly provided with other sealing positions to prevent the air flow from entering the closed docking port from other gaps. The implementer can select correspondingly according to his own needs.

[0067] Please refer to Figure 1In this embodiment, a driving member is further included, and the driving member is in driving connection with the movable cover 141, so that the movable cover 141 can move back and forth in a straight line along a first direction, thereby switching between the first position and the second position. The driving member can be a linear motor or a cylinder, but obviously, adding a linear motor or a cylinder inside the indoor unit body will significantly increase the manufacturing and production costs of the indoor unit body. Therefore, please refer to Figure 11 In this embodiment, the driving member is a shaft motor 142, a gear is provided on the output shaft of the shaft motor 142, and a rack meshing with the gear is formed on the movable cover 141, so that the shaft motor 142 can drive the movable cover 141 to perform linear motion in the first direction.

[0068] It should be noted that, in this embodiment, the travel of the gear rack driving the movable cover 141 is configured to enable the matching portion and the corresponding sealing surface to be in extrusion contact, thereby achieving sealing contact. At the same time, in order to ensure the movement accuracy of the movable cover 141, in this embodiment, the left bracket 133 and the left shell 213, the right bracket 134 and the right shell 214 are correspondingly formed with slide rails that slide with the movable cover 141 on the same side.

[0069] In this embodiment, a fresh air module for realizing a fresh air function and a humidification module for realizing a humidification function are arranged in the indoor unit body. The above-mentioned air duct switching structure is mainly used to realize the communication between the fresh air module and the main channel 130, or the communication between the humidification module and the main channel 130. Correspondingly, in this embodiment, the indoor unit body further includes an air duct structure 100, and the air duct structure 100 includes:

[0070] The air duct switching structure as described above;

[0071] A fresh air passage 110, wherein the inlet end of the fresh air passage 110 is used to introduce fresh air from the outdoor environment, and the outlet end thereof is connected to the first docking port 131;

[0072] The humidification channel 120 has an inlet end for introducing air from the external environment, and an outlet end thereof connected to the second docking port 132 . A humidification element is disposed in the humidification channel 120 .

[0073] Please see again Figure 1 , Figure 5 and Figure 8, in this embodiment, along the flowing direction of the air flow, the main channel 130 is located downstream of each channel, so that the docking interface can introduce outdoor fresh air or the air flow that needs to be humidified. It should be noted that the above-mentioned fresh air channel 110 is not necessarily limited to extending into the outdoor environment. The inlet end of the fresh air channel 110 can be connected to the fresh air pipe provided inside the indoor unit body. The external environment connected to the inlet end of the above-mentioned humidifying channel 120 can be either the outdoor environment or the indoor environment. In addition, in this embodiment, the air flows in the fresh air channel 110, the humidifying channel 120, and the main channel 130 are generally from bottom to top. That is to say, the main channel 130 is located above the fresh air channel 110 and the humidifying channel 120. Since the suspended dust particles in the air will gradually sink under the action of their own weight, setting the main channel 130 above the fresh air channel 110 and the humidifying channel 120 can prevent the dust particles in the fresh air channel 110 and the humidifying channel 120 from accumulating at the docking interface and the movable cover 141, thereby ensuring the contact effect and sealing performance between each sealing surface and the corresponding mating part. The implementer can also change the positional relationship among the fresh air channel 110, the humidifying channel 120, and the main channel 130 according to his own needs, and the present disclosure does not make special limitations on this. For example, in another embodiment, the air flows in the fresh air channel 110, the humidifying channel 120, and the main channel 130 are generally horizontal, and the main channel 130 is located outside the lateral sides of the fresh air channel 110 and the humidifying channel 120; or for another example, in another embodiment, the air flows in the fresh air channel 110, the humidifying channel 120, and the main channel 130 are generally from top to bottom. That is to say, the main channel 130 is located below the fresh air channel 110 and the humidifying channel 120.

[0074] Furthermore, the indoor unit body provided in this embodiment further includes a fan assembly for cooperating with the air duct structure 100, and the fan assembly is used to realize the traction of the air flows in the fresh air channel 110, the humidifying channel 120, and the main channel 130. Please refer to again Figure 1 , in this embodiment, the fan assembly includes:

[0075] An impeller 211;

[0076] A fan housing, the impeller 211 is arranged in the fan housing, and the fan housing has a housing inlet 212a and a housing outlet 212b; and

[0077] The air duct structure 100 described in the foregoing text, and the housing inlet 212a is correspondingly communicated with the outlet end of the main channel 130.

[0078] Among them, in this embodiment, a single fan assembly is used to simultaneously draw in outdoor fresh air or air that needs to be humidified, avoiding the need to configure separate fans for the humidification module and fresh air module on the air conditioner, thereby reducing the implementation cost of the indoor unit body and further improving the structural compactness of the indoor unit body.

[0079] In addition, in this embodiment, the humidifying member described in the foregoing is a wet film 121. When the air flow passes through the wet film 121, the air flow carries away the water molecules on the wet film 121 to achieve the purpose of humidifying the air. Implementers can also choose components such as humidifying nozzles to achieve air humidification. At the same time, whether using the wet film 121 or the humidifying nozzle as the humidifying member, the air will face relatively large pressure and flow rate losses when passing through the humidifying channel 120. Therefore, in this embodiment, the housing inlet 212a of the fan housing is connected to the outlet end of the main channel 130 to increase the pressure and flow rate of the fresh air and humidified air flow entering the indoor environment.

[0080] Further, please refer to Figure 3 , to increase the air volume output of the fan, in this embodiment, the number of components of the housing inlet 212a is multiple, the number of components of the air duct structure 100 corresponds to the number of components of the housing inlet 212a, at least two housing inlets 212a are respectively formed on the opposite sides of the fan housing in the second direction, at least two sets of air duct structures 100 are symmetrically arranged outside the opposite sides of the fan housing in the second direction, and the outlet end of the main channel 130 is connected to the housing inlet 212a on the same side.

[0081] In this embodiment, mainly by providing multiple housing inlets 212a on the fan housing and matching them with the corresponding air duct structure 100, the flow rate of the air flow entering the fan housing is increased, realizing the output of fresh air or humidified air flow with a large air volume and low noise, and improving the comfort of the fresh air or humidified air flow. At the same time, at least two housing inlets 212a and the corresponding air duct structure 100 are symmetrically arranged along the second direction, further improving the structural compactness.

[0082] It should be noted that, in this embodiment, the first direction and the second direction extend in the same direction, and both are parallel to the horizontal plane, but it is not limited thereto. For example, in another embodiment, the above-mentioned first direction and second direction are perpendicular to each other.

[0083] The above-mentioned wind wheel 211 can be any one of an axial-flow wind wheel, a cross-flow wind wheel or a centrifugal wind wheel. Correspondingly, when the wind wheel 211 is an axial-flow wind wheel, the fan housing correspondingly is an axial-flow fan housing. In this embodiment, the above-mentioned wind wheel 211 is a centrifugal wind wheel, and the fan housing correspondingly is a volute 212. Specifically, the housing inlets 212a described above are respectively formed at both axial ends of the volute 212, so that the volute 212 cooperates with the wind wheel 211 to form a double-suction centrifugal fan capable of discharging a large amount of fresh air and humidified air flow. More specifically, in this embodiment, the above-mentioned volute 212 is mainly formed by enclosing a left housing 213 and a right housing 214. The left housing 213 cooperates with the left bracket 133 to enclose the main channel 130 on the left side, and the right housing 214 cooperates with the right bracket 134 to enclose the main channel 130 on the right side.

[0084] Please refer to Figure 8 and Figure 10 , in this embodiment, the indoor unit body further includes:

[0085] a water tank base 221 and a water tank 222;

[0086] The water tank 222 is configured to supply humidifying water to the wet film 121, and the wet film 121 is installed on the water tank 222;

[0087] The water tank base 221 is configured to have a container shape with an open end. The water tank 222 is received in the internal space of the water tank base 221 through the open end. The water tank base 221 at least partially defines the humidifying channel 120, and the water tank base 221 and the water tank 222 together define an air outlet 223 communicating with the inlet end of the humidifying channel 120.

[0088] In this embodiment, by mainly improving the shapes of the water tank 222 and the water tank base 221, the water tank 222 and the water tank base 221 together define an air outlet 223 exposed on the outer surface of the indoor unit body, avoiding the additional arrangement of an air outlet structure on the indoor unit body, and at the same time realizing the concealment of the air outlet 223 and improving the aesthetic degree of the air outlet 223.

[0089] More specifically, in this embodiment, the water tank base 221 and the rear bracket 224 together enclose the fresh air channels 110 distributed on both sides. The humidifying channel 120 is directly formed by enclosing the water tank base 221 and the water tank 222. The wet film 121 described above is installed on the wet film 121 installation position formed by the water tank 222 and covers the inlet end of the humidifying channel 120. The wet films 121 on both sides are arranged in a left-right symmetric form, and the air outlet 223 is formed between the wet films 121 on the left and right and faces the front. With such an arrangement, the integration degree of the wet film 121 and the water tank 222 in terms of structure is improved, and the structural compactness is further improved.

[0090] Regarding the water tank 222 providing humidifying water to the wet film 121, please refer to again Figure 8 , in this embodiment, the bottom of the wet film 121 penetrates into the internal space of the water tank 222 to obtain the infiltration of the humidifying water, so that the humidifying water diffuses from bottom to top to the entire wet film 121. Implementers can also select components such as nozzles or connecting pipes to realize the water tank 222 providing humidifying water to the wet film 121, and can also set the water tank 222 above the wet film 121 through a water distribution structure or other means to realize the water tank 222 providing humidifying water to the wet film 121. The present disclosure does not make special limitations on this.

[0091] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the detailed descriptions of other embodiments above, and will not be repeated here.

[0092] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are proposed in this application, so such modifications, improvements, and corrections still belong to the spirit and scope of the exemplary embodiments of this application.

[0093] At the same time, this application uses specific terms to describe the embodiments of this application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be combined appropriately.

[0094] Similarly, it should be noted that, in order to simplify the expression of the disclosure of this application and thus help the understanding of one or more embodiments of the invention, in the previous description of the embodiments of this application, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than those mentioned in the claims. In fact, the features of the embodiment are less than all the features of the single embodiment disclosed above.

[0095] In some embodiments, numbers are used to describe components and the quantity of attributes. It should be understood that such numbers used in the description of embodiments are, in some examples, modified by the modifiers "about", "approximately", or "substantially". Unless otherwise specified, "about", "approximately", or "substantially" indicate that the number allows a variation of ±%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may vary according to the characteristics required by individual embodiments. In some embodiments, the numerical parameters should consider the specified significant digits and adopt the method of retaining the general number of digits. Although the numerical ranges and parameters used in some embodiments of the present application to confirm the breadth of their scope are approximate values, in specific embodiments, such numerical settings are as precise as possible within the feasible range.

[0096] For each patent, patent application, patent application publication, and other materials cited in the present application, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated by reference into the present application, except for the application history documents that are inconsistent with or conflict with the content of the present application, and also except for the documents that limit the broadest scope of the claims of the present application (currently or subsequently attached to the present application). It should be noted that if there are inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the attached materials of the present application and the content of the present application, the descriptions, definitions, and / or uses of terms in the present application shall prevail.

[0097] The above has introduced in detail an air conditioner and its air duct switching structure provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A duct switching structure, It is characterized in that include: A main channel, wherein the main channel is formed with a first pairing interface, a second pairing interface, and a sealing portion located between the first pairing interface and the second pairing interface; A movable cover, wherein a matching portion is formed on the movable cover, and the movable cover has a first position and a second position. When the movable cover is in the first position, the first pair of interfaces is opened and the second pair of interfaces is closed, and when the movable cover is in the second position, the first pair of interfaces is closed and the second pair of interfaces is opened; when the movable cover is in the first position or the second position, the sealing portion is in sealing contact with the matching portion to form a sealing structure that blocks airflow from flowing between the first pair of interfaces and the second pair of interfaces; The first pair of interfaces and the second pair of interfaces are arranged sequentially along a first direction; The sealing portion is in the shape of a protrusion protruding relative to the first mating interface and the second mating interface, and the contact surface between the sealing portion and the matching portion is at least partially arranged to intersect with the first direction; The sealing portion includes a first sealing surface and a second sealing surface that are arranged opposite to each other, the first sealing surface faces the first mating interface, and the second sealing surface faces the second mating interface; the matching portion includes a first matching portion and a second matching portion that are sequentially formed on the movable cover along a first direction; Wherein, when the movable cover is in the first position, the first sealing surface is in sealing contact with the first matching portion, and when the movable cover is in the second position, the second sealing surface is in sealing contact with the second matching portion; The first direction is a linear direction, and further comprises a driving member, wherein the driving member is in transmission connection with the movable cover so that the movable cover can reciprocate linearly along the first direction, thereby switching between the first position and the second position; The cross section of the structure formed by the movable cover including the first matching portion and the second matching portion is in an I-shape.

2. An air conditioner, comprising an indoor unit body, wherein the indoor unit body comprises an air duct structure, It is characterized in that The air duct structure comprises: The air duct switching structure as claimed in claim 1; A fresh air channel, the inlet end of which is used to introduce fresh air from the outdoor environment, and the outlet end of which is connected to the first pair of ports; A humidification channel, wherein the inlet end of the humidification channel is used to introduce air from the external environment, and the outlet end thereof is connected to the second docking port, and a humidification component is arranged in the humidification channel.

3. The air conditioner according to claim 2, It is characterized in that The indoor unit body also includes: Wind wheel; A fan housing, wherein the wind wheel is arranged in the fan housing, and the fan housing has a housing inlet and a housing outlet; Wherein, the outlet end of the main channel in the air duct structure is connected to the shell inlet.

4. The air conditioner according to claim 3, It is characterized in that The number of components at the housing inlet is multiple, the number of components of the air duct structure corresponds to the number of components at the housing inlet, at least two housing inlets are respectively formed on opposite sides of the fan housing in the second direction, at least two groups of air duct structures are symmetrically arranged outside opposite sides of the fan housing in the second direction, and the main channel outlet end thereof is communicated with the housing inlet on the same side.

5. The air conditioner according to claim 4, wherein, the fan housing is a volute, and the second direction is the axial direction of the volute.

6. The air conditioner according to claim 2, wherein, the humidifying member is a wet film, and the indoor unit body further includes: a water tank configured to supply humidifying water to the wet film, and the wet film is mounted on the water tank; a water tank seat configured to have a container shape with an open end, the water tank is received in the internal space of the water tank seat through the open end, the water tank seat at least partially defines the humidifying channel, and the water tank seat and the water tank together define an air outlet communicated with the inlet end of the humidifying channel.

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