Fresh air system suitable for window

Abstract

The utility model relates to the technical field of household appliances, and discloses a fresh air system suitable for a window, the window comprises a window frame and a window body, the window body is rotatably mounted on the window frame, and the fresh air system comprises a fresh air device and a position sensor. The fresh air device is installed on the outer vertical face of the wall body, and the fresh air device communicates with the indoor space through a window so that the fresh air device can supply air to the indoor space; the position sensor is arranged at the position, corresponding to the window body, of the window frame and used for obtaining the position of the window body. By means of the arrangement, whether a user opens the window or not can be judged through the position sensor, the fresh air system is controlled to be opened or closed according to the window opening condition, the fresh air system control modes are richer, and the use experience of the user is improved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, for example, a fresh air system applicable to windows. Background Art

[0002] With the development of society, people's living standards have gradually improved, and fresh air systems have gradually entered ordinary families. Traditional fresh air systems are generally duct-type. The duct-type fresh air system is installed in the ceiling. Generally, it needs to be installed before decoration, and the installation difficulty of later maintenance is relatively large. The single-unit fresh air system is generally wall-mounted and can be installed indoors after the user's decoration. However, the single-unit fresh air system has a relatively high noise level and will occupy the user's indoor space, reducing the user's experience.

[0003] In the related art, to solve the above problems, users generally choose to install the fresh air system outdoors and connect the fresh air system to the indoor through pipelines. In this way, users can not only add a fresh air system after the decoration is completed, but also avoid excessive indoor noise and the fresh air system occupying indoor space, improving the user's experience.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the related art, for the existing fresh air system installed outdoors, the way to control the fresh air system is relatively single, and the user experience is not good.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Utility Model Content

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide a fresh air system applicable to windows, which can determine whether the user opens the window through a position sensor and control the opening or closing of the fresh air system according to the window opening situation, making the way to control the fresh air system more diverse and improving the user experience.

[0009] Embodiments of the present disclosure provide a fresh air system applicable to windows. The window includes a window frame and a window body. The window body is rotatably installed on the window frame. The fresh air system includes: a fresh air device and a position sensor. The fresh air device is installed on the outer facade of the wall, and the fresh air device is communicated with the interior through the window so that the fresh air device can supply fresh air to the interior. The position sensor is arranged at the position corresponding to the window frame and the window body for obtaining the position of the window body. Wherein, the position sensor is electrically connected to the fresh air device for controlling the fresh air device to be turned on or off. When the position sensor detects that the window body is open, the fresh air device is controlled to be turned on. When the position sensor detects that the window body is closed, the fresh air device is controlled to be turned off.

[0010] In some embodiments, the fresh air device includes: a fresh air fan and a fresh air pipeline. The fresh air fan is installed on the outer facade of the wall. The fresh air pipeline includes a first end communicated with the fresh air fan and a second end arranged on the window frame. The fresh air pipeline is used for communicating the fresh air fan and the interior. Wherein, the distance between the fresh air fan and the window is less than or equal to a preset distance.

[0011] In some embodiments, the fresh air fan includes a fan. The air supply direction of the fan is defined as facing the fresh air pipeline, and the fan is used for supplying fresh air to the interior. Wherein, the position sensor is electrically connected to the fan, and the position sensor can control the rotation speed of the fan according to the opening degree of the window body.

[0012] In some embodiments, the fresh air system further includes: a grille assembly. The grille assembly is rotatably arranged at the position corresponding to the window frame and the fresh air pipeline.

[0013] In some embodiments, the grille assembly includes: vertical grilles and / or horizontal grilles. The vertical grilles are vertically arranged at the position corresponding to the window frame and the fresh air pipeline, and the vertical grilles can rotate horizontally. The horizontal grilles are horizontally arranged at the position corresponding to the window frame and the fresh air pipeline, and the horizontal grilles can rotate vertically.

[0014] In some embodiments, when the grille assembly includes vertical grilles, the fresh air system further includes: a first motor. The first motor includes a rotating shaft drivingly connected to the vertical grilles, and the first motor is used for driving the vertical grilles to rotate.

[0015] In some embodiments, when the grille assembly includes horizontal grilles, the fresh air system further includes: a second motor. The second motor includes a rotating shaft drivingly connected to the horizontal grilles, and the second motor is used for driving the horizontal grilles to rotate.

[0016] In some embodiments, the fresh air system further includes: a control board. The control board is installed on the side of the window frame facing the interior, and the control board is electrically connected to the fresh air device for controlling the fresh air device.

[0017] In some embodiments, the fresh air duct includes an air supply outlet communicating with the interior of the room, and the size of the air supply outlet is smaller than that of the window frame; the fresh air system further includes: a wind deflector. The wind deflector is disposed at the gap between the air supply outlet of the fresh air duct and the window frame.

[0018] In some embodiments, a sealing structure is provided at the corresponding positions of the wind deflector and the window frame, and a sealing structure is provided at the corresponding positions of the wind deflector and the fresh air duct.

[0019] A fresh air system applicable to a window provided by an embodiment of the present disclosure can achieve the following technical effects:

[0020] An embodiment of the present disclosure provides a fresh air system applicable to a window. The window includes a window frame and a window body. The window body is rotatably installed on the window frame. The fresh air system includes: a fresh air device and a position sensor. The fresh air device is installed on the outer facade of the wall, and the fresh air device communicates with the interior of the room through the window so that the fresh air device can supply fresh air to the room; the position sensor is disposed at the corresponding position of the window frame and the window body for obtaining the position of the window body; wherein, the position sensor is electrically connected to the fresh air device for controlling the opening or closing of the fresh air device; when the position sensor detects that the window body is opened, the fresh air device is controlled to be opened; when the position sensor detects that the window body is closed, the fresh air device is controlled to be closed. In this way, when the user opens the window, the position sensor can control the fresh air device to be opened to supply fresh air to the room; when the user closes the window, the position sensor can control the fresh air device to be closed. Such a setting can determine whether the user opens the window through the position sensor and control the opening or closing of the fresh air system according to the opening situation of the window, making the control method of the fresh air system more diverse and improving the user experience.

[0021] The above general description and the following description are only exemplary and explanatory and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0023] Figure 1 is a schematic structural diagram of a fresh air system applicable to a window provided by an embodiment of the present disclosure;

[0024] Figure 2 is a schematic structural diagram of a fresh air device provided by an embodiment of the present disclosure;

[0025] Figure 3 is a sectional view of a fresh air device provided by an embodiment of the present disclosure;

[0026] Figure 4 It is a flow chart of the fresh air provided by an embodiment of the present disclosure;

[0027] Figure 5 It is a schematic structural diagram of a window provided by an embodiment of the present disclosure.

[0028] Reference numerals:

[0029] 10: Fresh air fan; 11: Housing; 111: Air inlet; 112: Air outlet; 12: Fan; 13: Filter device;

[0030] 20: Fresh air pipeline; 21: Air supply port;

[0031] 31: Window body; 32: Window frame; 33: Windshield;

[0032] 40: Position sensor; 41: Control board;

[0033] 50: Grille assembly. Detailed implementation manners

[0034] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration purposes only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0035] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0036] In the embodiments of the present disclosure, the orientation or positional relationships indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientation or positional relationships shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Unless otherwise specified, the term "plural" means two or more.

[0039] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0040] The term "and / or" is a description of the associated relationship of an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0041] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0042] In the prior art, traditional fresh air systems generally adopt a duct installation method, that is, the fresh air system is installed in the ceiling. Therefore, the duct fresh air system needs to be installed before the user's decoration, and the difficulty of later maintenance is relatively large.

[0043] To avoid the above problems, more and more users choose a single-unit fresh air system. The single-unit fresh air system is wall-mounted, so the user can install the fresh air system after the decoration is completed, and the difficulty of later maintenance is also relatively small. At the same time, in order to avoid occupying the user's indoor air and reducing the indoor noise, the user will install the fresh air system outdoors and connect it to the indoor through pipelines. However, the control method of the existing single-unit fresh air system installed outdoors is relatively single, and the user experience is not good.

[0044] As shown Figures 1 to 5 in the figure, an embodiment of the present disclosure provides a fresh air system applicable to a window, which can determine whether the user opens the window through a position sensor 40, and control the opening or closing of the fresh air system according to the opening condition of the window, so that the control method of the fresh air system is more diverse, improving the user experience.

[0045] As shown Figures 1 to 5 in the figure, an embodiment of the present disclosure provides a fresh air system applicable to a window. The window includes a window frame 32 and a window body 31. The window body 31 is rotatably installed on the window frame 32. The fresh air system includes: a fresh air device and a position sensor 40. The fresh air device is installed on the outer facade of the wall, and the fresh air device communicates with the interior through the window, so that the fresh air device can supply fresh air to the interior; the position sensor 40 is arranged at a position corresponding to the window frame 32 and the window body 31 for obtaining the position of the window body 31; wherein, the position sensor 40 is electrically connected to the fresh air device for controlling the opening or closing of the fresh air device; when the position sensor 40 detects that the window body 31 is opened, the fresh air device is controlled to be opened; when the position sensor 40 detects that the window body 31 is closed, the fresh air device is controlled to be closed.

[0046] Specifically, the fresh air device can be installed on the outer facade of the wall through fasteners such as expansion bolts, and the fresh air device is located on one side of the window. The fresh air device includes an air inlet 111 communicating with the outside and an air supply port 21 communicating with the window to deliver outdoor air into the interior. Among them, the window body 31 is located on the side of the fresh air device close to the interior. In this way, the user can rotate the window body 31 towards the interior, that is, rotate the window body 31 away from the fresh air device to open the window body 31; the user can also rotate the window body 31 towards the outside to a position corresponding to the window frame 32, that is, rotate the window body 31 towards the fresh air device to close the window body 31.

[0047] As shown Figure 1 in the figure, when the user rotates the window body 31 towards the interior, the position sensor 40 determines that the window body 31 is in an open state. At this time, the position sensor 40 can control the fresh air system to be opened to deliver outdoor air into the interior.

[0048] When the user rotates the window body 31 towards the outside to a position corresponding to the window frame 32, the position sensor 40 determines that the window body 31 is in a closed state. At this time, the position sensor 40 can control the fresh air system to be closed to reduce energy consumption.

[0049] With such a setting, it is possible to determine whether the user opens the window through the position sensor 40, and control the opening or closing of the fresh air system according to the opening condition of the window, so that the control method of the fresh air system is more diverse, improving the user experience.

[0050] In the above embodiments, the position sensor 40 controlling the fresh air system to close may be to control the fresh air system to completely shut down, or to control the fresh air system to be in a standby state.

[0051] It can be understood that a sealing structure is provided in the gap between the fresh air device and the window to prevent outdoor air from directly flowing into the room when the window body 31 is opened.

[0052] In some practical applications, the position sensor 40 may be a distance sensor. The user can install the distance sensor on the side of the window frame 32 facing the window body 31. The distance sensor is used to obtain the distance between the window body 31 and the window frame 32, and then determine the opening state of the window body 31.

[0053] In other practical applications, the position sensor 40 may be an angle sensor. The user can install the angle sensor at the position corresponding to the rotating shaft of the window frame 32 and the window body 31. The angle sensor is used to obtain the rotation angle of the window body 31, and then determine the opening state of the window body 31.

[0054] As Figure 1 and Figure 2 shown, in some embodiments, the fresh air device includes: a fresh air blower 1210 and a fresh air pipeline 20. The fresh air blower 1210 is installed on the outer facade of the wall; the fresh air pipeline 20 includes a first end communicating with the fresh air blower 1210 and a second end provided on the window frame 32. The fresh air pipeline 20 is used to connect the fresh air blower 1210 and the interior of the room; wherein, the distance between the fresh air blower 1210 and the window is less than or equal to a preset distance.

[0055] Specifically, the fresh air device further includes a bracket. The bracket can be installed on the outer facade of the wall through fasteners such as expansion bolts, and the fresh air blower 1210 can be installed on the bracket. The housing 11 of the fresh air blower 1210 is provided with an air inlet 111 communicating with the outside and an air outlet 112 communicating with the fresh air pipeline 20. The second end of the fresh air pipeline 20 is provided with an air supply port 21 communicating with the interior of the room. In this way, the fresh air blower 1210 can inhale outdoor air through the air inlet 111 and deliver the outdoor air to the interior of the room through the fresh air pipeline 20.

[0056] It can be understood that making the distance between the fresh air blower 1210 and the window less than or equal to the preset distance can reduce the length of the fresh air pipeline 20, and further reduce the air supply distance of the fresh air blower 1210, so as to improve the air supply efficiency of the fresh air blower 1210.

[0057] As Figure 3 and Figure 4As shown, optionally, the fresh air device further includes a filtering device 13. The filtering device 13 is disposed at the air inlet 111 or the air outlet 112 of the fresh air fan 1210. In this way, when the fresh air fan 1210 conveys outdoor air into the room, the filtering device 13 can filter the outdoor air to improve the quality of the air flowing into the room.

[0058] In practical applications, the filtering device 13 includes a primary filter and a high-efficiency filter. The primary filter and the high-efficiency filter are sequentially disposed at the air inlet 111 of the fresh air fan 1210.

[0059] As Figure 3 and Figure 4 shown, in some embodiments, the fresh air fan 1210 includes a fan 12. The air supply direction of the fan 12 is defined as facing the fresh air pipeline 20. The fan 12 is used to supply air into the room. Among them, the position sensor 40 is electrically connected to the fan 12, and the position sensor 40 can control the rotation speed of the fan 12 according to the distance between the window body 31 and the window frame 32.

[0060] Specifically, the fan 12 is installed in the housing 11 of the fresh air fan 1210. When the position sensor 40 determines that the window body 31 is in the open state, the position sensor 40 controls the fan 12 to turn on to convey outdoor air into the room. When the position sensor 40 determines that the window body 31 is in the closed state, the position sensor 40 controls the fan 12 to turn off. At the same time, when the window body 31 is open, the position sensor 40 can also control the rotation speed of the fan 12 according to the degree of opening of the window body 31, and the rotation speed of the fan 12 is in a proportional relationship with the degree of opening of the window body 31.

[0061] For example, when the user rotates the window body 31 30° into the room, the position sensor 40 controls the fan 12 to be at the first rotation speed. When the user rotates the window body 31 60° into the room, the position sensor 40 controls the fan 12 to be at the second rotation speed. Among them, the first rotation speed is less than the second rotation speed.

[0062] As Figure 1 and Figure 5 shown, in some embodiments, the fresh air system further includes: a grille assembly 50. The grille assembly 50 is rotatably disposed at a position corresponding to the window frame 32 and the fresh air pipeline 20.

[0063] Specifically, installing the grille assembly 50 at a position corresponding to the window frame 32 and the fresh air pipeline 20 can prevent sundries in the room from entering the fresh air pipeline 20, thereby avoiding installation hazards. At the same time, the user can rotate the grille assembly 50 to adjust the flow direction of the air flowing into the room, thereby simulating natural wind and further improving the user experience.

[0064] As Figure 1 and Figure 5As shown, in some embodiments, the grille assembly 50 includes: a vertical grille and / or a horizontal grille. The vertical grille is vertically disposed at a position corresponding to the fresh air duct 20 of the window frame 32, and the vertical grille can rotate horizontally; the horizontal grille is horizontally disposed at a position corresponding to the fresh air duct 20 of the window frame 32, and the horizontal grille can rotate vertically.

[0065] Specifically, the grille assembly 50 may include a plurality of vertical grilles, and the plurality of vertical grilles are sequentially rotatably disposed along the horizontal direction on the window frame 32. In this way, the user can rotate the vertical grille to the left or right to allow air to flow into the room to the left or right.

[0066] Similarly, the grille assembly 50 may also include a plurality of horizontal grilles, and the plurality of horizontal grilles are sequentially rotatably disposed along the vertical direction on the window frame 32. In this way, the user can rotate the horizontal grille up or down to allow air to flow into the room up or down.

[0067] In some embodiments, when the grille assembly 50 includes a vertical grille, the fresh air system further includes: a first motor. The first motor includes a rotating shaft drivingly connected to the vertical grille, and the first motor is used to drive the vertical grille to rotate.

[0068] Specifically, when the grille assembly 50 includes a plurality of vertical grilles, the fresh air system further includes a first transmission structure. The first motor is drivingly connected to the plurality of vertical grilles through the first transmission structure to drive the plurality of vertical grilles to rotate. In this way, the user can control the first motor to drive the vertical grille to rotate periodically back and forth to perform left and right air sweeping, further improving the user experience.

[0069] In some embodiments, when the grille assembly 50 includes a horizontal grille, the fresh air system further includes: a second motor. The second motor includes a rotating shaft drivingly connected to the horizontal grille, and the second motor is used to drive the horizontal grille to rotate.

[0070] Specifically, when the grille assembly 50 includes a plurality of horizontal grilles, the fresh air system further includes a second transmission structure. The second motor is drivingly connected to the plurality of horizontal grilles through the second transmission structure to drive the plurality of horizontal grilles to rotate. In this way, the user can control the second motor to drive the vertical grille to rotate periodically back and forth to perform up and down air sweeping, further improving the user experience.

[0071] As Figure 1 and Figure 5 As shown, in some embodiments, the fresh air system further includes: a control board 41. The control board is installed on the side of the window frame 32 facing the room, and the control board 41 is electrically connected to the fresh air device for controlling the fresh air device.

[0072] Specifically, the control board 41 is electrically connected to the blower 12. The user can control the turning on or off of the blower 12 through the control board 41, and can also control the rotation speed of the blower 12.

[0073] It can be understood that after the user controls the fresh air device through the control board, the position sensor 40 automatically stops controlling the fresh air device.

[0074] As Figures 1 to 5 shown, in some embodiments, the fresh air duct 20 includes an air outlet 21 communicating with the interior of the room, and the size of the air outlet 21 is smaller than the size of the window frame 32; the fresh air system further includes: a wind deflector 33. The wind deflector 33 is disposed at the gap between the air outlet 21 of the fresh air duct 20 and the window frame 32.

[0075] Specifically, the wind deflector 33 has the same size as the window frame 32. An opening is formed in the wind deflector 33, and the size of the opening is the same as the size of the air outlet 21. The air outlet 21 of the fresh air duct 20 is installed at the opening of the wind deflector 33 to enable the fresh air blower 1210 to communicate with the interior of the room. In this way, the wind deflector 33 can be installed at the gap between the air outlet 21 of the fresh air duct 20 and the window frame 32 to prevent outdoor air from directly flowing into the room when the window body 31 is opened.

[0076] In some embodiments, a sealing structure is provided at the corresponding positions of the wind deflector 33 and the window frame 32, and a sealing structure is also provided at the corresponding positions of the wind deflector 33 and the fresh air duct 20.

[0077] Specifically, providing a sealing structure at the corresponding positions of the wind deflector 33 and the window frame 32 can prevent outdoor air from directly flowing into the room through the gap between the wind deflector 33 and the window frame 32. Similarly, providing a sealing structure at the corresponding positions of the wind deflector 33 and the fresh air duct 20 can prevent outdoor air from directly flowing into the room through the gap between the wind deflector 33 and the fresh air duct 20.

[0078] Optionally, the sealing structure can be a sealing strip or a sealant.

Claims

1. A fresh air system applicable to windows, the windows comprising a window frame and a window body, the window body being rotatably installed on the window frame, characterized in that, The fresh air system includes: A fresh air device installed on the outer facade of the wall, and the fresh air device is communicated with the interior through the window so that the fresh air device can supply air to the interior; and, A position sensor disposed at a position corresponding to the window frame and the window body for obtaining the position of the window body; Wherein, the position sensor is electrically connected to the fresh air device for controlling the opening or closing of the fresh air device; When the position sensor detects that the window body is opened, the fresh air device is controlled to be turned on; When the position sensor detects that the window body is closed, the fresh air device is controlled to be turned off.

2. The fresh air system according to claim 1, wherein The fresh air device includes: A fresh air blower installed on the outer facade of the wall; A fresh air pipeline including a first end communicated with the fresh air blower and a second end disposed on the window frame, and the fresh air pipeline is used for communicating the fresh air blower and the interior; Wherein, the distance between the fresh air blower and the window is less than or equal to a preset distance.

3. The fresh air system according to claim 2, wherein The fresh air blower includes a blower, and the air supply direction of the blower is defined as facing the fresh air pipeline, and the blower is used for supplying air to the interior; Wherein, the position sensor is electrically connected to the blower, and the position sensor can control the rotation speed of the blower according to the opening degree of the window body.

4. The fresh air system according to claim 2, wherein It further includes: A grille assembly rotatably disposed at a position corresponding to the window frame and the fresh air pipeline.

5. The fresh air system according to claim 4, wherein The grille assembly includes: Vertical grilles vertically disposed at a position corresponding to the window frame and the fresh air pipeline, and the vertical grilles can rotate horizontally; and / or, Horizontal grilles horizontally disposed at a position corresponding to the window frame and the fresh air pipeline, and the horizontal grilles can rotate vertically.

6. The fresh air system according to claim 5, wherein When the grille assembly includes vertical grilles, the fresh air system further includes: A first motor including a rotating shaft drivingly connected to the vertical grilles, and the first motor is used for driving the vertical grilles to rotate.

7. The fresh air system according to claim 5, characterized in that When the grille assembly includes horizontal grilles, the fresh air system further includes: A second motor including a rotating shaft drivingly connected to the horizontal grilles, and the second motor is used for driving the horizontal grilles to rotate.

8. The fresh air system according to any one of claims 1 to 7, characterized in that, It further includes: A control board installed on the side of the window frame facing the interior, and the control board is electrically connected to the fresh air device for controlling the fresh air device.

9. The fresh air system according to any one of claims 2 to 7, characterized in that, The fresh air pipeline includes an air supply port communicated with the interior, and the size of the air supply port is smaller than the size of the window frame; the fresh air system further includes: A wind deflector disposed at the gap between the air supply port of the fresh air pipeline and the window frame.

10. The fresh air system according to claim 9, wherein A sealing structure is provided at a position corresponding to the wind deflector and the window frame, and a sealing structure is provided at a position corresponding to the wind deflector and the fresh air pipeline.

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