Wind blocking assembly for fresh air machine and fresh air machine

Abstract

This application relates to the field of household appliance technology, and discloses a wind deflector component for a fresh air system. When there is a large temperature difference between outdoor and indoor air, both can be introduced into a heat exchange duct for heat exchange via a total heat exchange module. When the temperature difference is small, outdoor air can be directly introduced into the room through a bypass duct. This design avoids the fresh air system from operating under continuous high load, thus ensuring its lifespan. This application also discloses a fresh air system.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, such as a wind deflector assembly for a fresh air system and a fresh air system. Background Technology

[0002] As society develops, users have increasingly higher demands for quality of life. In summer and winter, users often keep doors and windows closed for extended periods, leading to stale indoor air and increased carbon dioxide levels. Therefore, users often install fresh air systems to treat outdoor air before introducing it indoors, improving air quality. To further enhance the user experience, traditional fresh air systems typically cool or heat the outdoor air, ensuring that the outdoor air reaches the same temperature as the indoor air upon entering, thus preventing indoor temperature fluctuations from negatively impacting the user experience.

[0003] In related technologies, to reduce the energy consumption of fresh air systems, a total heat exchange module is installed inside the system. The fresh air system simultaneously draws indoor and outdoor air to the total heat exchange module, allowing the indoor and outdoor air to exchange heat with each other. This way, outdoor air can be introduced into the room only after its temperature has reached a similar level to that of indoor air.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, fresh air systems equipped with total heat exchange modules will continue to exchange heat between the outdoor and indoor air even when the outdoor and indoor air temperatures are similar. This causes the fresh air system to operate under continuous high load, affecting its lifespan.

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

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a wind deflector assembly and a fresh air unit for a fresh air system. When there is a large temperature difference between outdoor and indoor air, both can be introduced into a heat exchange duct for heat exchange via a total heat exchange module. When the temperature difference is small, outdoor air can be directly introduced into the room through a bypass duct. This design avoids the fresh air unit from operating under continuous high load, thus ensuring its lifespan.

[0009] This disclosure provides a wind deflector assembly for a fresh air unit. The fresh air unit is provided with a heat exchange duct and a bypass duct. The wind deflector assembly includes a frame, heat exchange blades, bypass blades, and a drive assembly. The frame includes a heat exchange mounting portion located in the heat exchange duct and a bypass mounting portion located in the bypass duct. The heat exchange blades are rotatably mounted on the heat exchange mounting portion of the frame to clear or block the heat exchange duct. The bypass blades are rotatably mounted on the bypass mounting portion of the frame to clear or block the bypass duct. The drive assembly is drively connected to the heat exchange blades and the bypass blades to drive them to rotate synchronously. The rotation axes of the heat exchange blades and the bypass blades are parallel to each other, and there is a preset angle between the tilt angles of the heat exchange blades and the tilt angles of the bypass blades.

[0010] In some embodiments, the plane containing the heat exchange blades and the plane containing the bypass blades are perpendicular to each other.

[0011] In some embodiments, the drive assembly includes a transmission link and a drive motor. The transmission link is rotatably connected to the heat exchange vane and the bypass vane, respectively; the drive motor is driven by the transmission link to drive the transmission link to reciprocate; wherein, the drive motor can drive the heat exchange vane and the bypass vane to rotate via the transmission link.

[0012] In some embodiments, the windbreak assembly further includes a temperature sensor and a control device. The temperature sensor is used to acquire the outdoor temperature and the indoor temperature; the control device is electrically connected to the drive motor and the temperature sensor respectively; wherein, the control device can control the drive motor to drive the transmission linkage to move according to the temperature difference between the outdoor temperature and the indoor temperature, thereby controlling the tilt angle of the heat exchange vanes and the bypass vanes.

[0013] In some embodiments, when the temperature difference between the outdoor temperature and the indoor temperature is less than or equal to a preset temperature difference, the heat exchange blades are controlled to block the heat exchange air duct, and the bypass blades are controlled to clear the bypass air duct.

[0014] In some embodiments, when the heat exchange blades and bypass blades respectively clear the heat exchange duct and bypass duct, the tilt angle of the heat exchange blades and the tilt angle of the bypass blades are inversely proportional.

[0015] In some embodiments, the fresh air unit includes a plurality of heat exchange blades and a plurality of bypass blades, wherein the number of heat exchange blades is greater than or equal to the number of bypass blades.

[0016] This disclosure also provides a fresh air unit including: a housing, a total heat exchange module, and the aforementioned wind deflector assembly for the fresh air unit. The housing is provided with a heat exchange duct and a bypass duct; the total heat exchange module is disposed in the heat exchange duct; the wind deflector assembly is disposed corresponding to the heat exchange duct and the bypass duct; wherein the wind deflector assembly is used to unblock or block the heat exchange duct, and to unblock or block the bypass duct.

[0017] In some embodiments, the housing is provided with a mounting slot, the shape and size of which correspond to the frame configuration so that the frame can be inserted into the mounting slot.

[0018] In some embodiments, the heat exchange duct includes a heat exchange outlet, and the bypass duct is provided with a bypass outlet; wherein, a first side of the mounting slot is located at the heat exchange outlet, and a second side of the mounting slot extends to the bypass outlet, so as to install the frame at a position corresponding to the heat exchange outlet and the bypass outlet.

[0019] The windbreak assembly and fresh air unit provided in this disclosure can achieve the following technical effects:

[0020] This disclosure provides a wind deflector assembly for a fresh air unit. The fresh air unit is provided with a heat exchange duct and a bypass duct. The wind deflector assembly includes a frame, heat exchange blades, bypass blades, and a drive assembly. The frame includes a heat exchange mounting portion located in the heat exchange duct and a bypass mounting portion located in the bypass duct. The heat exchange blades are rotatably mounted on the heat exchange mounting portion of the frame to clear or block the heat exchange duct. The bypass blades are rotatably mounted on the bypass mounting portion of the frame to clear or block the bypass duct. The drive assembly is drively connected to the heat exchange blades and the bypass blades to drive them to rotate synchronously. The rotation axes of the heat exchange blades and the bypass blades are parallel to each other, and there is a preset angle between the tilt angles of the heat exchange blades and the tilt angles of the bypass blades. In this way, when there is a large temperature difference between outdoor and indoor air, both can be introduced into the heat exchange duct to exchange heat through the total heat exchange module. When the temperature difference is small, outdoor air can be directly introduced into the room through a bypass duct. This setup avoids the fresh air unit from operating at a continuous high load, thus ensuring its lifespan.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of a fresh air unit provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the structure of a foam component provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of a bypass box provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of the structure of a bypass base provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of the structure of a windbreak assembly provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of another windshield component provided in an embodiment of this disclosure.

[0029] Figure label:

[0030] 10: Housing; 101: Fresh air inlet; 102: Indoor air supply outlet; 103: Indoor return air outlet; 104: Exhaust outlet; 105: Mounting slot; 11: Heat exchange duct; 12: Air inlet duct; 13: Air supply duct; 14: Total heat exchange module;

[0031] 21: Frame; 211: Heat exchange section; 212: Bypass section; 213: Sealing partition; 22: Heat exchange vane; 23: Bypass vane; 24: Drive motor; 25: Transmission connecting rod;

[0032] 30: Bypass box; 31: Bypass ventilation duct. Detailed Implementation

[0033] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full 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 simplified in their depiction to simplify the drawings.

[0034] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0035] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0036] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0041] like Figures 1 to 6As shown, this disclosure provides a windbreak assembly and a fresh air unit for a fresh air system. When there is a large temperature difference between outdoor and indoor air, both outdoor and indoor air can be introduced into a heat exchange duct to exchange heat through a total heat exchange module. When the temperature difference is small, outdoor air can be directly introduced into the room through a bypass duct. This design avoids the fresh air unit from operating under continuous high load, thus ensuring its service life.

[0042] like Figures 1 to 6 As shown, this embodiment of the present disclosure provides a wind deflector assembly for a fresh air unit. The fresh air unit is provided with a heat exchange duct 11 and a bypass duct 31. The wind deflector assembly includes: a frame 21, a heat exchange blade 22, a bypass blade 23, and a drive assembly. The frame 21 includes a heat exchange mounting portion located in the heat exchange duct 11 and a bypass mounting portion located in the bypass duct 31. The heat exchange blade 22 is rotatably mounted on the heat exchange mounting portion of the frame 21 to clear or block the heat exchange duct 11. The bypass blade 23 is rotatably mounted on the bypass mounting portion of the frame 21 to clear or block the bypass duct 31. The drive assembly is drivenly connected to the heat exchange blade 22 and the bypass blade 23 to drive the heat exchange blade 22 and the bypass blade 23 to rotate synchronously. The rotation axis of the heat exchange blade 22 and the rotation axis of the bypass blade 23 are parallel to each other, and there is a preset angle between the tilt angle of the heat exchange blade 22 and the tilt angle of the bypass blade 23.

[0043] Specifically, the fresh air unit includes a casing 10, within which are constructed parallel heat exchange ducts 11 and bypass ducts 31, which are independent of each other to avoid airflow interference. The frame 21 is configured as a rectangular frame structure to fit the structure of the casing 10, facilitating frame installation. The heat exchange mounting portion of the frame is perpendicular to the heat exchange duct 11, and its size and shape correspond to the heat exchange duct 11; the bypass mounting portion of the frame is perpendicular to the bypass duct 31, and its size and shape correspond to the bypass duct 31. For example, if the heat exchange duct 11 has a rectangular cross-section, the heat exchange mounting portion of the frame 21 is also rectangular, and the area covered by the heat exchange mounting portion is the same as the cross-sectional area of ​​the heat exchange duct 11; if the bypass duct 31 has a square cross-section, the bypass mounting portion of the frame 21 is also square, and the area covered by the bypass mounting portion is the same as the cross-sectional area of ​​the bypass duct 31. The heat exchanger vane 22 has a rotating shaft at both ends along its length. The vane 22 is rotatably mounted on the heat exchange mounting part via the rotating shaft, allowing it to rotate horizontally around its rotating shaft. When the vane 22 is perpendicular to the heat exchange duct 11, it can block the heat exchange duct 11. When there is an angle between the vane 22 and the heat exchange duct 11, a gap exists between the vane 22 and the wall of the heat exchange duct 11 to clear the airflow. The bypass vane 23 also has a rotating shaft at both ends along its length. The bypass vane 23 is rotatably mounted on the bypass mounting part via the rotating shaft, allowing the bypass mounting part to rotate horizontally around its rotating shaft. When the bypass vane 23 is perpendicular to the bypass duct 31, it can block the bypass duct 31. When there is an angle between the bypass vane 23 and the bypass duct 31, a gap exists between the bypass vane 23 and the wall of the bypass duct 31 to clear the airflow. The parallelism of the rotation axis of the heat exchanger vane 22 and the bypass vane 23 means that the rotation axes of the heat exchanger vane 22 and the bypass vane 23 are parallel to each other. The drive assembly is fixedly installed on the frame 21 and is respectively connected to the heat exchanger vane 22 and the bypass vane 23 to drive them to rotate, thereby clearing or blocking the heat exchange duct 11 and the bypass duct 31. Simultaneously, there is a preset angle between the tilt angle of the heat exchanger vane 22 and the tilt angle of the bypass vane 23, that is, there is a preset angle between the plane containing the heat exchange duct 11 and the plane containing the bypass duct 31.

[0044] Thus, when there is a significant temperature difference between indoor and outdoor areas, the drive motor 24 drives the bypass vane 23 to rotate to a position perpendicular to the bypass ventilation duct 31 to block the bypass ventilation duct 31. At this time, there is an angle between the heat exchange vane 22 and the heat exchange duct 11 to clear the heat exchange duct 11, thereby allowing outdoor air to flow into the room through the heat exchange duct 11. Figure 5As shown. When the indoor and outdoor temperatures are relatively close, the drive motor 24 drives the heat exchange vane 22 to rotate to a position perpendicular to the heat exchange duct 11 to block the heat exchange duct 11. At this time, there is an angle between the bypass vane 23 and the bypass duct 31 to clear the bypass duct 31, thereby allowing outdoor air to flow into the room through the bypass duct 31, as shown. Figure 6 As shown. This setting can prevent the fresh air unit from being under continuous high load, thereby ensuring the service life of the fresh air unit.

[0045] In the above embodiment, the plane where the frame 21 is located is taken as the reference plane. The tilt angle of the heat exchange oscillating blade 22 refers to the angle between the heat exchange oscillating blade 22 and the reference plane in the width direction; the tilt angle of the bypass oscillating blade 23 refers to the angle between the bypass oscillating blade 23 and the reference plane in the width direction.

[0046] like Figure 5 and Figure 6 As shown, in some embodiments, the plane where the heat exchange blade 22 is located and the plane where the bypass blade 23 is located are perpendicular to each other.

[0047] Specifically, the rotation plane of the heat exchanger vane 22 is perpendicular to the airflow direction of the heat exchange duct 11, and the rotation plane of the bypass vane 23 is perpendicular to the airflow direction of the bypass duct 31. When the heat exchanger vane 22 is parallel to the heat exchange duct 11, the heat exchanger vane 22 completely clears the heat exchange duct 11, and at this time the bypass vane 23 is perpendicular to the bypass duct 31 to completely block the bypass duct 31; similarly, when the bypass vane 23 is parallel to the bypass duct 31, the bypass vane 23 completely clears the bypass duct 31, and at this time the heat exchanger vane 22 is perpendicular to the heat exchange duct 11 to completely block the heat exchange duct 11.

[0048] Optionally, a sealing partition 213 is also provided between the heat exchange section 211 and the bypass section 212 of the frame 21. When the heat exchange blade 22 blocks the heat exchange air duct 11, it can abut against one side of the sealing partition 213 to improve the sealing performance of the heat exchange air duct 11; when the bypass blade 23 blocks the bypass air duct 31, it can abut against the other side of the sealing partition 213 to improve the sealing performance of the bypass air duct 31.

[0049] like Figure 5 and Figure 6 As shown, in some embodiments, the drive assembly includes a transmission link 25 and a drive motor 24. The transmission link 25 is rotatably connected to the heat exchange vane 22 and the bypass vane 23, respectively; the drive motor 24 is drivenly connected to the transmission link 25 to drive the transmission link 25 to reciprocate; wherein, the drive motor 24 can drive the heat exchange vane 22 and the bypass vane 23 to rotate through the transmission link 25.

[0050] Specifically, the drive motor 24 is mounted on the frame, and its output shaft faces the oscillating blades. The transmission link 25 is perpendicular to both the heat exchange oscillating blade 22 and the bypass oscillating blade 23, and is rotatably connected to the middle of both blades, allowing the transmission link 25 to simultaneously drive both blades to rotate. The output shaft of the drive motor 24 is driven by the transmission link 25, causing it to reciprocate in a direction perpendicular to the oscillating blades, thereby causing the heat exchange oscillating blade 22 and the bypass oscillating blade 23 to rotate synchronously.

[0051] like Figure 5 and Figure 6 As shown, in some practical applications, the heat exchanger vane 22 and the bypass vane 23 are hinged to the transmission link 25 via pins or other structures. Thus, by providing multiple connecting structures on the transmission link 25, the connection position between the heat exchanger vane 22 or the bypass vane 23 and the transmission link 25 can be adjusted, thereby adjusting the tilt angle of the heat exchanger vane 22 and the bypass vane 23.

[0052] like Figure 5 and Figure 6 As shown, in some embodiments, the windbreak assembly further includes a temperature sensor and a control device. The temperature sensor is used to acquire the outdoor temperature and the indoor temperature; the control device is electrically connected to the drive motor 24 and the temperature sensor respectively; wherein, the control device can control the drive motor 24 to drive the transmission linkage 25 to move according to the temperature difference between the outdoor temperature and the indoor temperature, thereby controlling the tilt angle of the heat exchange swashplate 22 and the bypass swashplate 23.

[0053] Specifically, the housing 10 is also equipped with a fresh air inlet 101 and an indoor return air inlet 103. Temperature sensors include detection probes located at the fresh air inlet 101 and the indoor return air inlet 103 to acquire the outdoor temperature T1 and the indoor temperature T2 in real time. The control device can be built into the electrical control box of the fresh air unit and drive the heat exchange vanes 22 and the bypass vanes 23 to rotate according to the preset temperature control drive components.

[0054] Optionally, the control device can also steplessly adjust the deflection angle of the oscillating blades according to the temperature difference. For example, if the temperature difference is larger, the deflection angle of the heat exchange oscillating blade 22 will be larger to increase the heat exchange; if the temperature difference is smaller, the deflection angle of the bypass oscillating blade 23 will be larger to reduce the heat exchange.

[0055] like Figure 5 and Figure 6 As shown, in some embodiments, when the temperature difference between the outdoor temperature and the indoor temperature is less than or equal to a preset temperature difference, the heat exchange blades 22 are controlled to block the heat exchange duct 11, and the bypass blades 23 are controlled to clear the bypass duct 31.

[0056] Specifically, when |outdoor temperature T1 - indoor temperature T2| ≤ preset temperature T0, the control device controls the drive motor 24 to rotate the heat exchange vane 22 to a position perpendicular to the heat exchange duct 11 via the transmission link 25 to block the heat exchange duct 11. Simultaneously, the bypass ventilation duct 31 rotates to a position parallel to the bypass ventilation duct 31 to clear it. At this time, outdoor fresh air completely bypasses the heat exchange duct 11 and flows into the room through the bypass ventilation duct 31. Similarly, when |outdoor temperature T1 - indoor temperature T2| > preset temperature T0, the control device controls the heat exchange vane 22 to clear the heat exchange duct 11.

[0057] In the above embodiments, the preset temperature can be set according to the user's actual needs. For example, the preset temperature can be 5℃, 4℃, 3℃, 2℃ or 1℃.

[0058] like Figure 5 and Figure 6 As shown, in some embodiments, when the heat exchange oscillating blade 22 and the bypass oscillating blade 23 respectively clear the heat exchange air duct 11 and the bypass air duct 31, the tilt angle of the heat exchange oscillating blade 22 and the tilt angle of the bypass blade are inversely proportional.

[0059] Specifically, when the outdoor and indoor temperatures are similar, and the heat exchange duct 11 and the bypass duct 31 are simultaneously opened, a portion of the outdoor fresh air flows into the room through the heat exchange duct 11, and another portion flows into the room through the bypass duct 31. At this time, the drive assembly rotates the heat exchange vane 22 and the bypass vane 23 to different angles. For example, when the angle between the heat exchange vane 22 and the reference plane is 30°, the angle between the bypass vane 23 and the reference plane is 60°; when the angle between the heat exchange vane 22 and the reference plane is 60°, the angle between the bypass vane 23 and the reference plane is 30°.

[0060] like Figure 5 and Figure 6 As shown, in some embodiments, the fresh air unit includes a plurality of heat exchange blades 22 and a plurality of bypass blades 23, and the number of heat exchange blades 22 is greater than or equal to the number of bypass blades 23.

[0061] Specifically, multiple heat exchange blades 22 are arranged along the length of the frame 21, and each heat exchange blade 22 is rotatably mounted on the frame 21. A transmission link 25 is arranged perpendicular to the multiple heat exchange blades 22 and is rotatably connected to each of the multiple heat exchange blades 22. A drive motor 24 is driven by the transmission link 25 and can simultaneously drive the multiple heat exchange blades 22 to rotate. Similarly, multiple bypass blades 23 are arranged along the length of the frame 21, and each bypass blade 23 is rotatably mounted on the frame 21. A transmission link 25 is arranged perpendicular to the multiple bypass blades 23 and is rotatably connected to each of the multiple bypass blades 23. A drive motor 24 is driven by the transmission link 25 and can simultaneously drive the multiple bypass blades 23 to rotate.

[0062] Understandably, the heat exchange duct 11 and the bypass duct 31 are generally large in size, hence the heat exchange duct 11 is also relatively large. Therefore, by blocking the heat exchange duct 11 with multiple heat exchange vanes 22, the size of a single heat exchange vane 22 can be prevented from becoming too large. Similarly, by blocking the bypass duct 31 with multiple bypass vanes 23, the size of a single bypass vane 23 can be prevented from becoming too large.

[0063] like Figures 1 to 6 As shown, this embodiment of the disclosure also provides a fresh air unit including: a housing 10, a total heat exchange module 14, and the aforementioned wind deflector assembly for the fresh air unit. The housing 10 is provided with a heat exchange duct 11 and a bypass duct 31; the total heat exchange module 14 is disposed in the heat exchange duct 11; the wind deflector assembly is disposed corresponding to the heat exchange duct 11 and the bypass duct 31; wherein, the wind deflector assembly is used to unblock or block the heat exchange duct 11, and to unblock or block the bypass duct 31.

[0064] Specifically, the total heat exchange module 14 is installed inside the heat exchange duct 11, and the total heat exchange module 14 is used to exchange heat with the air flowing through it. The wind deflector assembly is disposed inside the housing 10, and can respectively open or block the heat exchange duct 11 and the bypass duct 31. The fresh air system using the wind deflector assembly provided in this application can directly introduce outdoor air into the room when the outdoor and indoor temperatures are close, thus avoiding the fresh air system being continuously under high load and ensuring the service life of the fresh air system.

[0065] like Figures 1 to 6 As shown in some embodiments, the housing 10 is provided with a mounting slot 105, the shape and size of which correspond to the frame 21 so that the frame 21 can be inserted into the mounting slot 105.

[0066] Specifically, the housing 10 is provided with a mounting slot 105, which is perpendicular to the heat exchange air duct 11 and the bypass air duct 31. An opening is provided on one side of the mounting slot 105, through which the frame 21 can be inserted to the mounting slot 105 to install the air baffle assembly onto the housing 10.

[0067] like Figures 1 to 6 As shown in some embodiments, the heat exchange duct 11 includes a heat exchange outlet, and the bypass duct 31 is provided with a bypass outlet; wherein, the first side of the mounting slot 105 is located at the heat exchange outlet, and the second side of the mounting slot 105 extends to the bypass outlet, so as to install the frame 21 at the position corresponding to the heat exchange outlet and the bypass outlet.

[0068] Specifically, by positioning the mounting slot 105 near the heat exchange outlet and the bypass outlet, the baffle assembly can be placed at both the heat exchange outlet and the bypass outlet. In this case, the heat exchange oscillating blade 22 only needs to clear or block the heat exchange outlet to clear or block the heat exchange duct 11, and the bypass oscillating blade 23 only needs to clear or block the bypass outlet to clear or block the bypass duct 31.

[0069] like Figures 1 to 6 Optionally, the housing 10 includes a fresh air inlet 101, an indoor air supply inlet 102, an indoor return air inlet 103, and an exhaust outlet 104. The fresh air inlet 101 is connected to the air intake duct 12, and the indoor air supply inlet 102 is connected to the air supply duct 13. The fresh air unit also includes a fan assembly, which is used to draw in outdoor air through the fresh air inlet 101 and blow the outdoor air into the room through the indoor air supply inlet 102 to improve the indoor air quality. A hollow installation compartment is provided inside the housing 10. The total heat exchange module 14 and the bypass box 30 are installed in the installation compartment. The bypass box 30 is installed on one side of the total heat exchange module 14, and the part of the installation compartment used to install the total heat exchange module 14 constitutes the heat exchange duct 11. A bypass duct 31 is provided inside the bypass box 30. The heat exchange duct 11 and the bypass duct 31 are independent of each other to avoid interference between the airflow of the heat exchange duct 11 and the bypass duct 31.

[0070] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wind deflector assembly for a fresh air system, characterized in that, The fresh air unit is equipped with a heat exchange air duct and a bypass air duct; The windbreak assembly includes: The frame includes a heat exchange mounting part located in the heat exchange duct and a bypass mounting part located in the bypass duct; Heat exchange blades are rotatably mounted on the heat exchange mounting part of the frame to clear or block the heat exchange air duct; A bypass vane, rotatably mounted on the bypass mounting portion of the frame, is used to clear or block the bypass ventilation duct; and, A drive assembly is connected to the heat exchange vane and the bypass vane to drive the heat exchange vane and the bypass vane to rotate synchronously. The rotation axis of the heat exchange blade and the rotation axis of the bypass blade are parallel to each other, and there is a preset angle between the tilt angle of the heat exchange blade and the tilt angle of the bypass blade.

2. The windbreak assembly according to claim 1, characterized in that, The plane containing the heat exchange blades and the plane containing the bypass blades are perpendicular to each other.

3. The windbreak assembly according to claim 1, characterized in that, The driving component includes: The transmission connecting rods are rotatably connected to the heat exchange vanes and the bypass vanes, respectively; and, A drive motor is connected to the transmission link to drive the transmission link to reciprocate. The drive motor can drive the heat exchange blades and bypass blades to rotate via the transmission link.

4. The windbreak assembly according to claim 3, characterized in that, Also includes: Temperature sensor used to obtain outdoor and indoor temperatures; and, The control device is electrically connected to the drive motor and the temperature sensor, respectively. The control device can control the drive motor to drive the transmission linkage to move according to the temperature difference between the outdoor temperature and the indoor temperature, thereby controlling the tilt angle of the heat exchange blades and the bypass blades.

5. The windbreak assembly according to claim 4, characterized in that, When the temperature difference between the outdoor temperature and the indoor temperature is less than or equal to the preset temperature difference, the heat exchange blades are controlled to block the heat exchange air duct, and the bypass blades are controlled to clear the bypass air duct.

6. The windbreak assembly according to claim 1, characterized in that, When the heat exchange blades and bypass blades respectively clear the heat exchange duct and the bypass duct, the tilt angle of the heat exchange blades and the tilt angle of the bypass blades are inversely proportional.

7. The windbreak assembly according to claim 1, characterized in that, The fresh air unit includes a plurality of heat exchange blades and a plurality of bypass blades, wherein the number of heat exchange blades is greater than or equal to the number of bypass blades.

8. A fresh air ventilator, characterized in that, include: The casing is equipped with heat exchange air ducts and bypass air ducts; The total heat exchange module is installed in the heat exchange air duct; and, The wind deflector assembly for a fresh air unit as described in any one of claims 1 to 6 is provided corresponding to the heat exchange duct and the bypass duct; Among them, the windbreak component is used to clear or block the heat exchange air duct, and to clear or block the bypass ventilation duct.

9. The fresh air system according to claim 8, characterized in that, The housing is provided with a mounting slot, the shape and size of which correspond to the frame, so that the frame can be inserted into the mounting slot.

10. The fresh air system according to claim 9, characterized in that, The heat exchange duct includes a heat exchange outlet, and the bypass duct is provided with a bypass outlet. The first side of the mounting slot is located at the heat exchange outlet, and the second side of the mounting slot extends to the bypass outlet, so as to install the frame at a position corresponding to the heat exchange outlet and the bypass outlet.

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