CN219243727U - Fresh air device and air conditioner - Google Patents

Abstract

The utility model provides a fresh air device and an air conditioner. The fresh air device comprises a shell, an air duct component and a fan. The shell is provided with a fresh air inlet and a fresh air outlet. The air duct component is detachably arranged in the shell and is provided with a box body and an inner container positioned in the box body, the inner container defines an air duct, the air duct is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively communicated with the fresh air inlet and the fresh air outlet. The fan is installed in the shell and is located the open outside thereof for impel the new trend air current to get into the wind channel through the new trend import, outwards blow out through the fan. The box body is provided with a vent hole opposite to the air inlet, and the outer wall of the box body is provided with an air door for opening and closing the vent hole. The utility model can make the cleaning of the air duct component and the filtering component more convenient and can conveniently close the fresh air function.

Description

Fresh air device and air conditioner

Technical Field

The utility model relates to the technical field of air conditioning, in particular to a fresh air device and an air conditioner.

Background

With the development of technology, air conditioners not only have basic functions of refrigeration, heating and the like, but also have fresh air functions, and outdoor fresh air is introduced into a shell of the air conditioner so as to update indoor air, so that the indoor air is always healthy and fresh.

If a fresh air function is required to be configured, an independent fresh air device is generally required to be arranged in the air conditioner so as to guide and process fresh air flow, for example, the fresh air flow is filtered or purified, and the like, so that the problems of disassembly and cleaning of a filtering part, condensation prevention of an air duct and the like can be caused.

Disclosure of Invention

An object of the present utility model is to overcome or at least partially solve the above problems, and to provide a fresh air device and an air conditioner having the same, in which cleaning of an air duct member and a filter member is more convenient.

Another object of the present utility model is to more conveniently turn on or off the fresh air function.

Another object of the utility model is to make the position of the damper more stable.

In one aspect, the present utility model provides a fresh air device, which includes:

the shell is provided with a fresh air inlet and a fresh air outlet;

the air duct component is detachably arranged in the shell and is provided with a box body and an inner container positioned in the box body, the inner container defines an air duct, the air duct is provided with an air inlet and an air outlet, and the air duct and the air inlet are respectively communicated with the fresh air inlet and the fresh air outlet;

the fan is arranged on the outer shell and positioned outside the opening of the outer shell and is used for promoting fresh air to flow through the fresh air inlet and enter the air duct, and the fresh air is blown out through the fan; and is also provided with

The box body is provided with a vent hole opposite to the air inlet, and the outer wall of the box body is provided with an air door for opening and closing the vent hole.

Optionally, the damper is rotatably mounted to an outer wall of the case to rotate to an open position or a closed position.

Optionally, at least one first buckle and at least one second buckle are formed on the outer wall of the box body, and the rotating shaft of the air door is located between the first buckle and the second buckle;

when the air door is in a closed position, one side surface of the air door faces the ventilation hole, and the air door is positioned by the first buckle;

when the air door is in the open position, the other side face of the air door faces the outer wall of the box body, and the second buckle is used for positioning the air door.

Optionally, the number of the first buckles is two, and the first buckles are respectively used for clamping opposite two edges of the air door;

the number of the second buckles is two, and the second buckles are respectively used for clamping the two opposite edges of the air door.

Optionally, the outer wall protrusion of box body is formed with first otic placode and second otic placode, and both offer the mounting hole for install the pivot of air door.

Optionally, a yielding port communicated with the mounting hole of the outer wall of the box body and the region corresponding to the first lug plate is formed, and an elastic tongue extends from the edge of the yielding port, which is close to the air door, so as to apply radial clamping force to the rotating shaft;

the end of the elastic tongue is provided with a baffle plate part protruding towards the outer side of the box body for blocking the end part of the rotating shaft.

Optionally, the elastic tongue is further formed with a bottom bracket in a protruding manner for supporting the rotating shaft.

Optionally, the surface of the base for holding the rotating shaft is an arc surface.

Optionally, the outer wall of the box body is further formed with a stop block, which is located at one side of the second ear plate, which is away from the air door, so that after the rotating shaft is inserted into the mounting hole of the second ear plate, the end part of the rotating shaft abuts against the stop block.

In another aspect, the present utility model also provides an air conditioner, including:

a housing; and

the fresh air device according to any one of the preceding claims, which is disposed within the housing.

In the fresh air device, the air duct component is detachably arranged in the shell, and the air duct component is directly detached when the air duct or the filter component arranged in the air duct component is required to be cleaned. And the box body is provided with a vent hole, a vent door is arranged at the vent hole, and the vent hole is opened and closed by the vent door so as to open/close the fresh air function.

Furthermore, the fresh air device disclosed by the utility model refines the structures of the first lug plate and the second lug plate for installing the rotating shaft of the air door, comprises the elastic tongue and the stop block, and particularly designs the first buckle and the second buckle, so that the air door is very stable in position no matter in an opening position or in a closing position.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic view of a fresh air device according to one embodiment of the present utility model;

FIG. 2 is a schematic exploded view of the fresh air device of FIG. 1;

FIG. 3 is a schematic view of the separated state of the air duct component and the housing in the fresh air device shown in FIG. 2;

FIG. 4 is another schematic view of the housing of FIG. 3;

FIG. 5 is a schematic diagram of a control structure of a blower;

FIG. 6 is an exploded schematic view of the air duct component;

FIG. 7 is a schematic cross-sectional view of a liner;

FIG. 8 is a schematic view of the bottom structure of the air duct member;

fig. 9 is an enlarged view at a of fig. 8;

FIG. 10 is a schematic view of the air duct component of FIG. 9 with the damper in a closed position;

FIG. 11 is an exploded schematic view of the air duct component and damper;

FIG. 12 is an enlarged view at B of FIG. 11;

FIG. 13 is another schematic view of the structure of FIG. 11;

FIG. 14 is an enlarged view at C of FIG. 13;

fig. 15 is a schematic structural view of an air conditioner according to an embodiment of the present utility model;

fig. 16 is a schematic right view of the air conditioner shown in fig. 15.

Detailed Description

The fresh air device and the air conditioner according to the embodiment of the present utility model will be described below with reference to fig. 1 to 16. Where the terms "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "transverse", etc., refer to an orientation or positional relationship based on that shown in the drawings, this is merely for convenience in describing the utility model and to simplify the description, and does not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include at least one, i.e. one or more, of the feature, either explicitly or implicitly. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

In one aspect, a fresh air device 50 is provided.

FIG. 1 is a schematic diagram of a fresh air device 50 according to one embodiment of the utility model; FIG. 2 is a schematic exploded view of the fresh air device 50 shown in FIG. 1; FIG. 3 is a schematic view showing a separated state of the air duct member 200 and the housing 100 in the fresh air device 50 shown in FIG. 2; fig. 4 is another view of the housing 100 of fig. 3; FIG. 5 is a schematic diagram of a control structure of the blower 300; FIG. 6 is an exploded schematic view of the air duct component 200; fig. 7 is a schematic cross-sectional view of the liner 220, and x in each figure indicates forward.

As shown in fig. 1-7, a fresh air device 50 according to an embodiment of the present utility model may generally include a housing 100, an air duct member 200, and a blower 300.

The housing 100 is provided with a fresh air inlet 130 and a fresh air outlet 150, see fig. 4. The housing 100 defines an accommodating space for accommodating the air channel member 200.

The air channel member 200 is detachably provided within the housing 100. The air duct member 200 has a case 210 and a liner 220 located inside the case 210. The inner container 220 defines an air duct 201, and the box 210 is used for wrapping the inner container 220 to protect and support the inner container 220. The air duct 201 has an air inlet 223 and an air outlet 225, which are in communication with the fresh air inlet 130 and the fresh air outlet 150, respectively. It will be appreciated that the box 210 also needs to be provided with corresponding openings opposite to the air inlet 223 and the air outlet 225, so that the air duct 201 is smoothly connected to the fresh air inlet 130 and the fresh air outlet 150. As shown in fig. 6 in particular, the case 210 has a vent hole 213 opposite the air inlet 223 and an opening 211 opposite the air outlet 225.

The blower 300 is mounted to the housing 100 and is located outside the fresh air outlet 150. The fan 300 is used for promoting the fresh air flow to enter the air duct 201 through the fresh air inlet 130 and then to be blown out through the fan 300. After being blown out by the fan 300, the fresh air can directly flow to the indoor environment, or can flow through structures such as an indoor heat exchanger, a purification module, a washing module and the like in the air conditioner and then be blown to the indoor environment from an air outlet of the air conditioner.

In the fresh air device according to the embodiment of the utility model, the air duct component 200 is detachably mounted in the housing 100, and when the air duct 201 or the filter component configured with the air duct component is required to be cleaned, the air duct component 200 is directly detached.

FIG. 8 is a schematic view of the bottom structure of the air duct member 200; fig. 9 is an enlarged view at a of fig. 8; fig. 10 is a schematic view of the air duct component 200 of fig. 9 with the damper 215 in a closed position.

As shown in fig. 8 to 10, the case 210 is provided with a vent hole 213 opposite to the air inlet 223, and an outer wall 2101 of the case 210 is mounted with a damper 215 for opening and closing the vent hole 213. When the fresh air function is required to be shut off, the ventilation hole 213 may be closed by the damper 215. Fig. 8 illustrates an opened state of the damper 215, and fig. 10 illustrates a closed state of the damper 215. Of course, the open/close state of the damper 215 may be changed after the air channel member 200 is pulled out.

The damper 215 may be rotatably mounted (rotation axis y) to the outer wall 2101 of the case 210 to rotate to an open position or a closed position.

As shown in fig. 8 and 10, the outer wall 2101 of the box 210 may be formed with at least one first catch 217 and at least one second catch 219, with the rotation shaft 2155 of the damper 215 being located between the first catch 217 and the second catch 219. When the damper 215 is in the closed position, one side 2151 thereof faces the vent 213, and the damper 215 is positioned by the first catch 217, as shown in fig. 10. When the damper 215 is in the open position, the other side 2152 thereof faces the outer wall 2101 of the case 210, and the damper 215 is positioned by the second catch 219. Fig. 9 illustrates an enlarged structure of the first catch 217. The second catch 219 is also of the same construction. When the damper 215 is mounted to the bottom wall of the case 210, the damper 215 is more firmly held in the open or closed position by positioning the damper 215 using the first catch 217 and the second catch 219.

As shown in fig. 8 and 10, the number of the first hooks 217 is two, and they are used to respectively lock opposite edges of the damper 215 so that the positions thereof are more stable. The number of the second buckles 219 is two, and the second buckles are respectively used for clamping the opposite edges of the damper 215 so as to be more stable in position.

As shown in fig. 8, the outer wall 2101 of the box 210 may be provided with a recessed sink 212 for receiving the damper 215 to avoid interference of the damper 215 with the internal structure of the housing 100.

FIG. 11 is an exploded schematic view of the air duct component 200 and the damper 215; FIG. 12 is an enlarged view at B of FIG. 11; FIG. 13 is another schematic view of the structure of FIG. 11; fig. 14 is an enlarged view at C of fig. 13.

In some embodiments, as shown in fig. 11 to 14, the outer wall of the box 210 may be formed with a first ear plate 216 and a second ear plate 218 protruding, and both are provided with mounting holes, respectively a mounting hole 2161 and a mounting hole 2181, for mounting the rotating shaft 2155 of the damper 215. The damper 215 may have one axis of rotation or, as shown, two collinear axes of rotation 2155 may be provided.

In some embodiments, referring to fig. 12 and 14, a region of the outer wall 2101 of the case 210 corresponding to the first ear plate 216 is provided with a relief hole 2160 in communication with the mounting hole 2161 thereof, and an edge of the relief hole 2160 near the damper 215 extends out of the resilient tongue 2162 for applying a radial clamping force to the rotating shaft 2155. When the shaft 2155 extends into the mounting holes 2161, 2181, the elastic tongue 2162 is compressed by the shaft 2155 to elastically deform, so as to apply the radial clamping force to the shaft 2155, so that the position of the shaft 2155 is more fastened. The tip of the elastic tongue 2162 has a shield portion 2163 protruding toward the outside of the case 210 for blocking the end of the rotating shaft 2155.

Further, the resilient tongue 2162 is also formed with a protruding base 2164 for supporting the shaft 2155. The bottom bracket 2164 is used for supporting the rotating shaft 2155, and has an arc surface.

In some embodiments, referring to fig. 14, the outer wall of the case 210 is further formed with a stopper 2182 located on a side of the second ear plate 218 facing away from the damper 215, so that the end of the shaft 2155 abuts against the stopper 2182 after being inserted into the mounting holes 2161, 2181 of the second ear plate 218. The axial freedom of the rotation shaft 2155 is restrained by the stopper 2182 and the stopper of the shutter portion 2163.

In some embodiments, bladder 220 is formed using a foaming process. For example, bladder 220 may be foam molded from an EPS material. In view of the fact that the temperature of the fresh air flow may be lower and the humidity may be higher, the embodiment of the present utility model particularly forms the inner container 220 of the air duct component 200 by a foaming process to prevent the inner wall of the air duct 201 from condensation.

In some embodiments, as shown in fig. 2 and 3, the fresh air device 50 also includes a filter component 600. The filter member 600 is mounted at the air outlet 225 for filtering the fresh air flow therethrough. For example, filter element 600 may be an HP filter screen. The fresh air device 50 of the embodiment of the utility model is provided with the filtering component 600 so as to filter the fresh air flow and make the fresh air flow cleaner.

In some embodiments, as shown in fig. 6 and 7, the flow cross section of the air duct 201 is gradually reduced in a direction from the air inlet 223 to the air outlet 225 to be in a gradually expanding shape. Since the filter member 600 is provided, the filter member 600 provides resistance to the air flow while filtering the air flow, so that the flow rate and the flow rate thereof are impaired. Therefore, the shape of the air duct 201 is specifically designed according to the embodiment of the present utility model, and the flow cross section of the air duct 201 gradually becomes smaller to be gradually expanded in the direction from the air inlet 223 to the air outlet 225, so that the airflow is smoother, and the air outlet 225 is larger, so that the surface area of the filter member 600 is larger, the filtering resistance of the filter member 600 is reduced, the airflow passes more smoothly, and the adverse effect of the filter member 600 on the wind speed and the wind quantity is reduced.

Further, the air inlet 223 may be circular, the air outlet 225 may be rectangular, and the inner wall of the air duct 201 may be a curved surface connected between the air inlet 223 and the air outlet 225. Of course, the curved surface should be a curved surface smoothly transitioning from the air inlet 223 to the air outlet 225 to reduce drag loss of the air flow.

Further, the circular center axis of the air inlet 223 and the rectangular center axis of the air outlet 225 may be made collinear, or the ratio of the sectional areas of the air inlet 223 and the air outlet 225 may be made between 0.15 and 0.2, so that the shape of the inner wall of the air duct 201 is more regular and the air flow is smoother.

In some embodiments, as shown in fig. 4, 6 and 7, the filter element 600 may be embedded within a section of the air duct 201 adjacent to the air outlet 225 (the upper section of the illustrated embodiment). The section of the air duct 201 adjacent the air outlet 225 flares radially outwardly (like a flare) compared to its upstream section so that a stepped surface 203 is formed between the two sections for supporting the filter element 600. In this way, the filter member 600 can be fitted exactly at the air outlet 225 of the air duct 201, so that the filter member 600 can be taken out after the air duct member 200 is removed, and thus cleaned or replaced.

In some embodiments, as shown in fig. 1-7, the fresh air inlet 130 and the fresh air outlet 150 may be located at the bottom and top of the housing 100, respectively, with the blower 300 mounted above the housing 100, and the air inlet 223 and the air outlet 225 open downward and upward, respectively. The front side of the housing 100 is opened, the box 210 is drawer-shaped with a top opened to form an opening 211 and a bottom opened with a vent 213, the vent 213 is opposite to the air inlet 223, and the box 210 is mounted in the housing 100 in a front-back push-pull manner through the front side opening 110 of the housing 100. Thus, when the air duct 201 needs to be cleaned, the filter screen needs to be cleaned or replaced, the air duct component 200 is pulled out just like a drawer, and the design is very ingenious. After cleaning, the air duct member 200 is pushed inward like a drawer.

In some embodiments, as shown in fig. 2, the bottom of the housing 100 may be provided with a sliding rail assembly 120, and the bottom of the air duct component 200 is connected to the sliding rail assembly 120. The fixed portion of the slide rail assembly 120 is fixed to the inner wall of the housing 100, and the sliding portion is slidably mounted to the fixed portion. The air channel member 200 is fixed to the sliding portion, thus making the push-pull of the air channel member 200 smoother. The slide rail assembly 120 is widely used in the drawer field, and its structure will not be described herein.

In some embodiments, as shown in fig. 2, the upper portion of the housing 100 may be provided with a grill cover 500, and the blower 300 is mounted on the grill cover 500. The grill cover 500 functions to support the blower 300. Fresh air in the air duct 201 flows out through the spaces between the grid strips of the grid cover plate 500 and is sucked by the fan 300.

The blower 300 may be a centrifugal blower with its suction port facing downward to be aligned with the grill cover 500, and an air outlet grill 400 may be provided at an air outlet of the blower 300, the air outlet grill 400 having grill holes 410 for discharging fresh air flow.

In some embodiments, as shown in fig. 3-5, the fresh air device 50 further includes a magnetic piece 820 and a magneto-sensitive sensor 810.

The magnetic member 820 is mounted to the air channel member 200. In particular, the magnetic member 820 may be a permanent magnet.

The magneto-sensitive sensor 810 is mounted to the housing 100 and is configured to: during the process of removing the air duct component 200 from the push-in state (referring to fig. 1, the air duct component 200 is pushed into the housing 100, so that the fresh air device 50 is in a normal operation state), the magneto sensor 810 senses the position change of the magnetic member 820 and sends a signal to the controller 80, so that the controller 80 controls the fan 300 to stop. Specifically, when the air duct member 200 is in the pushed-in state, the magnetic member 820 is closest to the magneto-sensitive sensor 810, and the magnetism of the magnetic member 820 can be sensed, and the model information can be detected. When the air duct member 200 is pulled forward, the distance between the magnetic member 820 and the magneto-dependent sensor 810 increases, and when the distance increases to a predetermined distance, the magneto-dependent sensor 810 will not detect the model information and then send a signal to the controller 80. The controller 80 may be a controller of an air conditioner or a self-configured controller of the fresh air device 50.

In this way, when the user pulls out the air duct component 200, even if the fan 300 is running, the fan 300 is stopped to avoid that the fan 300 rotates after the air duct component 200 is moved forward and pulled out, and the wind resistance of the filter component 600 is lacking, so that the noise of the fan 300 increases and some large particles are sucked into the fan 300, which causes unsafe feeling to the user.

In some embodiments, as shown in fig. 3, the magneto-dependent sensor 810 may be disposed on the rear side of the exterior of the housing 100 such that the signal lines and the like thereof are directly connected to the controller 80 from the exterior of the housing 100 without complicating the structure by introducing the lines into the interior of the housing 100. The magnetic member 820 may be disposed at the outer rear side of the air channel member 200 so as to facilitate the proximity of the magneto-sensitive sensor 810.

In some embodiments, as shown in FIG. 4, the fresh air device 50 may further include a rebound device 900, the rebound device 900 being mounted inside the housing 100. When the air channel member 200 is in the pushed-in state, the rebound device 900 is triggered to push the air channel member 200 forward when the air channel member 200 is subjected to a backward external force, so that the air channel member 200 is "popped up" for a certain distance, thereby facilitating the subsequent pulling-out of the air channel member 200 by a user. The user may apply an external force to the air duct member 200 by pressing the front panel of the case 210 (i.e., the front panel of the air duct member 200).

Specifically, the rebound apparatus 900 has a fixed case and a telescopic rod. When the air channel member 200 is in the pushed-in state, the telescopic rod is locked. After the telescopic rod is subjected to backward pressure, the telescopic rod is ejected forward under the action of a spring to eject the air channel component 200. When the air channel member 200 is pushed rearward, the telescoping rod is again locked after the telescoping rod is retracted. Rebound devices widely exist in the prior art, and can be obtained through an outsourcing mode, and detailed structures of rebound devices are not repeated.

As shown in fig. 4, the rebound device 900 may be mounted to the inside bottom of the case 100, and the bottom of the air channel member 200 has an upwardly recessed receiving groove 2103 (refer to fig. 3 and 9) to receive the rebound device 900, and the front end of the rebound device 900 abuts against the rearward surface of the receiving groove 2103.

In another aspect, an embodiment of the present utility model provides an air conditioner, which includes a casing and a fresh air device 50 as in any one of the above embodiments, where the fresh air device 50 is disposed in the casing.

The air conditioner is used for conditioning indoor air, including adjusting temperature, humidity, air quality of the air, humidifying the indoor air, dehumidifying, introducing fresh air, and the like. The air conditioner may be constituted by an evaporator, a condenser, a compressor, a throttle device and other necessary elements to form a vapor compression refrigeration cycle system to output cool/hot air through a fan to achieve cooling and heating of an indoor environment. The air conditioner of the embodiment of the utility model can be a household air conditioner or a central air conditioner. Specifically, the specific form of the air conditioner can be various forms such as split wall hanging type, split vertical type, integral type, patio type and the like. The embodiment of the utility model does not limit the concrete form of the air conditioner. Fig. 15 and 16 illustrate an indoor unit of a floor air conditioner.

Fig. 15 is a schematic structural view of an air conditioner according to an embodiment of the present utility model; fig. 16 is a schematic right view of the air conditioner shown in fig. 15.

As shown in fig. 15 and 16, the indoor unit of the air conditioner includes a casing 10 and a fresh air device 50 according to any one of the embodiments described above, and the fresh air device 50 is provided in the casing 10. In fig. 16, the fresh air device 50 is shown by a broken line, and the fresh air device 50 is merely provided inside the casing 10, and the specific shape of the fresh air device 50 is not shown.

The cabinet 10 is used to define a receiving space for mounting main components of an air conditioner, such as an indoor fan, an evaporator, a controller 80, various additional functional modules, and the like. The casing 10 is provided with an air inlet for sucking indoor air, and the casing 10 is also provided with an air outlet 12 for blowing an adjusting air flow to the indoor environment so as to complete the air adjusting process of the indoor environment, wherein the adjusting air flow can be cold air, hot air, humidifying air flow, purifying air flow, fresh air flow and the like.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A fresh air device, characterized by comprising:

the shell is provided with a fresh air inlet and a fresh air outlet;

the air duct component is detachably arranged in the shell and is provided with a box body and an inner container positioned in the box body, the inner container defines an air duct, the air duct is provided with an air inlet and an air outlet, and the air duct and the air inlet are respectively communicated with the fresh air inlet and the fresh air outlet;

the fan is arranged on the outer shell and positioned outside the opening of the outer shell and is used for promoting fresh air to flow through the fresh air inlet and enter the air duct, and the fresh air is blown out through the fan; and is also provided with

The box body is provided with a vent hole opposite to the air inlet, and the outer wall of the box body is provided with an air door for opening and closing the vent hole.

2. The fresh air device according to claim 1, wherein,

the damper is rotatably mounted to an outer wall of the case to rotate to an open position or a closed position.

3. The fresh air device according to claim 2, wherein,

the outer wall of the box body is provided with at least one first buckle and at least one second buckle, and the rotating shaft of the air door is positioned between the first buckle and the second buckle;

when the air door is in a closed position, one side surface of the air door faces the ventilation hole, and the air door is positioned by the first buckle;

when the air door is in the open position, the other side face of the air door faces the outer wall of the box body, and the second buckle is used for positioning the air door.

4. A fresh air device according to claim 3, wherein,

the number of the first buckles is two, and the first buckles are respectively used for clamping the two opposite edges of the air door;

the number of the second buckles is two, and the second buckles are respectively used for clamping the two opposite edges of the air door.

5. The fresh air device according to claim 2, wherein,

the outer wall protrusion of box body is formed with first otic placode and second otic placode, and both have seted up the mounting hole for install the pivot of air door.

6. The fresh air device according to claim 5, wherein,

a yielding port communicated with the mounting hole is formed in the outer wall of the box body and the region corresponding to the first lug plate, and an elastic tongue extends from the edge of the yielding port, which is close to the air door, and is used for applying radial clamping force to the rotating shaft;

the end of the elastic tongue is provided with a baffle plate part protruding towards the outer side of the box body for blocking the end part of the rotating shaft.

7. The fresh air device according to claim 6, wherein,

the elastic tongue is also provided with a bottom bracket in a protruding mode and is used for supporting the rotating shaft.

8. The fresh air device according to claim 7, wherein,

the surface of the bottom support for supporting the rotating shaft is an arc surface.

9. The fresh air device according to claim 5, wherein,

the outer wall of the box body is also provided with a stop block, and the stop block is positioned on one side of the second lug plate, which is away from the air door, so that the end part of the rotating shaft abuts against the stop block after the rotating shaft is inserted into the mounting hole of the second lug plate.

10. An air conditioner, characterized by comprising:

a housing; and

the fresh air device according to any one of claims 1 to 9, which is disposed within the housing.

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