Damper mechanism, fresh air fan and control method thereof

Abstract

The application relates to the air conditioning technical field, and discloses a damper mechanism, a fresh air machine and a control method thereof. The damper mechanism comprises a shell, a first door body, a second door body and a driving assembly. The shell comprises a cavity, a first air inlet, a second air inlet and a third air inlet which are in communication with the cavity. The first door body and the second door body are arranged on the shell and can move relative to the shell. The first door body is used for opening or closing one of the first air inlet and the third air inlet, and the second door body is used for opening or closing one of the second air inlet and the third air inlet. The driving assembly is arranged in the cavity and located between the first door body and the second door body. The output end of the driving assembly is connected with the first door body and the second door body respectively, and the driving assembly is used for driving the first door body and the second door body to move relative to the shell. The fresh air machine comprises a shell and the above damper mechanism. The damper mechanism is used for realizing fresh air machine air path channel switching, simplifying the structure of the fresh air machine and improving the reliability of the fresh air machine.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, such as a damper mechanism, a fresh air unit, and a control method thereof. Background Technology

[0002] Experiments have shown that the air quality in people's living or working environments affects their physiological state and cognitive activities. To ensure people are in a highly efficient working state or a comfortable physical condition, comprehensive control of the air quality in their living or working environments is necessary. Currently, commercially available integrated fresh air dehumidifiers suffer significant energy loss during the fresh air exchange process and have low dehumidification efficiency.

[0003] In related technologies, a solution to the above problems is to provide a solid dehumidifier. This solid dehumidifier includes an upper air duct, a lower air duct, a fresh air assembly, a return air assembly, and an airflow direction switching device. Solid dehumidification modules are installed in both the upper and lower air ducts. Both the upper and lower air ducts are connected to the fresh air assembly and the return air assembly. The airflow direction switching device is located at the air outlets of the upper and lower air ducts, and can selectively connect the fresh air assembly to the upper air duct and the return air assembly to the lower air duct, or connect the fresh air assembly to the lower air duct and the return air assembly to the upper air duct.

[0004] In the publicly disclosed implementation process, the application of the aforementioned solid-state dehumidifier has the following problems: This solid-state dehumidifier requires multiple airflow switching devices, which work together to switch the airflow channels within the dehumidifier, thereby achieving integrated operation of the fresh air and dehumidification functions. The multiple airflow switching devices result in a complex airflow channel switching structure for this solid-state dehumidifier, and its effectiveness is limited in situations with low relative humidity. Therefore, this solid-state dehumidifier suffers from disadvantages such as complex structure, low reliability, and low practicality.

[0005] 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. Summary of the Invention

[0006] 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.

[0007] This disclosure provides a damper mechanism, a fresh air unit, and a control method thereof, which simplifies the airflow channel switching structure of the fresh air unit, thereby simplifying the structure of the fresh air unit, while adding a humidification mechanism to improve the reliability and practicality of the fresh air unit.

[0008] In some embodiments, a damper mechanism is provided, comprising: a housing including a cavity, a first air inlet, a second air inlet, and a third air inlet communicating with the cavity; a first door body disposed in the housing, the first door body being movable relative to the housing to open or close one of the first air inlet and the third air inlet; a second door body disposed in the housing, the second door body being movable relative to the housing to open or close one of the second air inlet and the third air inlet; and a drive assembly disposed in the cavity, located between the first door body and the second door body, the output end of the drive assembly being connected to the first door body and the second door body respectively, to drive the first door body and the second door body to move relative to the housing.

[0009] The damper mechanism provided in this embodiment can achieve the following technical effects:

[0010] The damper mechanism provided in this embodiment drives a first door and a second door to move relative to the housing via a drive assembly, so that the first door opens or closes one of the first air vents and the third air vent, and the second door opens or closes one of the second air vents and the third air vent, thereby achieving airflow direction switching. By controlling the first and second doors with the drive assembly to achieve airflow channel switching, the number of airflow switching components is reduced, thus simplifying the airflow channel switching structure of the fresh air unit.

[0011] Optionally, the first door body is in the shape of an arc-shaped plate; the second door body is in the shape of an arc-shaped plate.

[0012] Optionally, the first door body includes a first tooth portion disposed on one side of the first door body located within the cavity; the second door body includes a second tooth portion disposed on one side of the second door body located within the cavity; the drive assembly includes a motor and a gear assembly, the motor being connected to the input end of the gear assembly, and the output end of the gear assembly being rotatably connected to the first tooth portion and the second tooth portion respectively; wherein, the motor is used to drive the gear assembly to rotate, so as to drive the first door body and the second door body to move relative to the housing.

[0013] Optionally, the first air vent and the second air vent are spaced apart on the same side of the housing; the third air vent is located between the first air vent and the second air vent; wherein the centerline of the third air vent is perpendicular to the centerline of the first air vent or the centerline of the second air vent.

[0014] In some embodiments, a fresh air ventilator is provided, comprising: a housing including a mounting cavity, an indoor return air inlet, an indoor air inlet, an outdoor air inlet, and an outdoor air outlet communicating with the mounting cavity; and a damper mechanism as described in any of the above embodiments, wherein the damper mechanism is disposed in the mounting cavity, and a first air outlet communicates with the outdoor air inlet, and a second air outlet communicates with the outdoor air outlet, and the damper mechanism is used to control the switching of airflow direction within the mounting cavity.

[0015] The fresh air machine provided by the embodiments of the present disclosure can achieve the following technical effects:

[0016] The fresh air machine provided by the embodiments of the present disclosure realizes the switching of the air flow direction in the installation cavity through the damper mechanism, reduces the number of wind direction switching components, and thus simplifies the structure of the fresh air machine.

[0017] Optionally, the fresh air machine further includes: a dehumidification mechanism disposed in the installation cavity; a humidification mechanism disposed in the installation cavity; a water receiving tray disposed in the installation cavity and located below the dehumidification mechanism and the humidification mechanism for collecting the water generated by the dehumidification mechanism and the humidification mechanism.

[0018] In some embodiments, a control method for a fresh air machine is provided, which is applied to the fresh air machine described in any of the above embodiments. The control method includes: obtaining the indoor humidity; determining the operation mode of the fresh air machine according to the indoor humidity; and controlling the operation of the damper mechanism according to the operation mode.

[0019] The control method for the fresh air machine provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The control method for the fresh air machine provided by the embodiments of the present disclosure determines the operation mode suitable for the current air condition according to the indoor humidity, and controls the operation of the damper mechanism according to the operation mode to realize the switching of the air path channel. Through this control method of the fresh air machine, the intelligent degree of the fresh air machine is improved, and thus the practicability and reliability of the fresh air machine are improved.

[0021] Optionally, the step of controlling the operation of the damper mechanism according to the operation mode includes: when the operation mode is the fresh air mode, controlling the driving component to drive the first door body and the second door body to move relative to the housing to open the first air outlet and the second air outlet and close the third air outlet; or, when the operation mode is the internal circulation mode, controlling the driving component to drive the first door body and the second door body to move in the opposite direction relative to the housing to close the first air outlet and the second air outlet and open the third air outlet. [[ID=第十九]]

[0022] Optionally, the step of determining the operation mode of the fresh air machine according to the indoor humidity includes: when RH < RH1, determining that the operation mode is the fresh air mode and the humidification mode; or, when RH1 < RH < RH2, determining that it is the fresh air mode; or, when RH2 < RH < RH3, determining that it is the fresh air mode and the dehumidification mode; or, when RH3 < RH, determining that it is the internal circulation mode and the dehumidification mode; where RH represents the indoor humidity, RH1 represents the first humidity threshold, RH2 represents the second humidity threshold, RH3 represents the third humidity threshold, and RH1 < RH2 < RH3.

[0023] Optionally, after determining the operating mode of the fresh air unit, the control method further includes: controlling the operation of the dehumidification unit and / or the humidification unit according to the operating mode.

[0024] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0025] 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:

[0026] Figure 1 This is a partial exploded view of the damper mechanism provided in the embodiments of this disclosure;

[0027] Figure 2 yes Figure 1 The diagram shows a structural schematic of a damper mechanism provided in one embodiment;

[0028] Figure 3 yes Figure 1 An exploded view of a damper mechanism provided in one embodiment is shown;

[0029] Figure 4 yes Figure 1 An exploded view of the housing in a damper mechanism provided in one embodiment is shown;

[0030] Figure 5 yes Figure 1 The illustrated embodiment is a schematic diagram of the driving component opening the first and second air vents and closing the third air vent.

[0031] Figure 6 yes Figure 1 The illustrated embodiment is a schematic diagram of the driving component closing the first and second air vents and opening the third air vent.

[0032] Figure 7 This is a schematic diagram of the internal structure of the fresh air unit provided in this embodiment of the disclosure;

[0033] Figure 8 yes Figure 7 A magnified structural diagram at point X in the embodiment shown;

[0034] Figure 9 yes Figure 7 Top view of the fresh air unit in the illustrated embodiment;

[0035] Figure 10 yes Figure 7 The diagram shows a structural schematic of a fresh air unit provided in one embodiment;

[0036] Figure 11 This is a schematic diagram of the airflow channel structure of the fresh air unit provided in this embodiment, with the first and second air inlets open and the third air inlet closed.

[0037] Figure 12 This is a schematic diagram of the airflow channel structure of the fresh air unit provided in this embodiment, with the first and second air inlets closed and the third air inlet open.

[0038] Figure 13 This is a schematic diagram of a control method for a fresh air unit provided in one embodiment of the present disclosure;

[0039] Figure 14 This is a schematic diagram of another control method for a fresh air unit provided in one embodiment of the present disclosure;

[0040] Figure 15 This is a schematic diagram of another control method for a fresh air unit provided in one embodiment of the present disclosure;

[0041] Figure 16 This is a schematic diagram of another control method for a fresh air unit provided in one embodiment of the present disclosure;

[0042] Figure 17 This is a structural block diagram of the fresh air unit provided in the embodiments of this disclosure.

[0043] Figure label:

[0044] 1. Damper mechanism;

[0045] 10. Shell; 110. Cavity; 120. First air vent; 130. Second air vent; 140. Third air vent; 150. First shell; 152. First notch; 154. Second notch; 156. Third notch; 160. Second shell; 162. Fourth notch; 164. Fifth notch; 166. Sixth notch; 170. First track; 180. Second track; 190. Third shell; 192. First groove; 194. Second groove;

[0046] 20 First gate body; 210 First tooth section;

[0047] 30 Second gate body; 310 Second tooth;

[0048] 40 Drive assembly; 410 Motor; 420 Gear assembly; 422 First gear; 424 Second gear; 426 Third gear;

[0049] 2 fresh air systems;

[0050] 50 Outer shell; 510 Mounting cavity; 512 First cavity; 514 Second cavity; 516 Third cavity; 518 Fourth cavity; 520 Indoor return air vent; 530 Indoor air inlet; 540 Outdoor air inlet; 550 Outdoor air outlet;

[0051] 60 Dehumidification unit; 610 Evaporator; 620 Condenser;

[0052] 70 Humidification unit; 710 Flow guide pipe; 720 Pump body; 730 Spray section;

[0053] 80 water tray; 810 drain pipe;

[0054] 90 Drainage assembly; 92 Partition assembly; 94 First fan; 96 Second fan; 98 Compressor; 100 Electrical control assembly; 102 Humidity sensor. Detailed Implementation

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] Unless otherwise stated, the term "multiple" means two or more.

[0060] 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.

[0061] 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.

[0062] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0063] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0064] In some embodiments, combined with Figure 1 and Figure 2 As shown, a damper mechanism 1 is provided, including: a housing 10, a first door body 20, a second door body 30, and a drive assembly 40. The housing 10 includes a cavity 110, a first air vent 120, a second air vent 130, and a third air vent 140 communicating with the cavity 110. The first door body 20 is disposed in the housing 10 and is movable relative to the housing 10 to open or close one of the first air vent 120 and the third air vent 140. The second door body 30 is disposed in the housing 10 and is movable relative to the housing 10 to open or close one of the second air vent 130 and the third air vent 140. The drive assembly 40 is disposed within the cavity 110, located between the first door body 20 and the second door body 30. The output end of the drive assembly 40 is connected to the first door body 20 and the second door body 30 respectively to drive the first door body 20 and the second door body 30 to move relative to the housing 10.

[0065] The damper mechanism 1 provided in this embodiment drives the first door body 20 and the second door body 30 to move relative to the housing 10 via a drive assembly 40. This causes the first door body 20 to open or close one of the first air vent 120 and the third air vent 140, and the second door body 30 to open or close one of the second air vent 130 and the third air vent 140, thereby achieving airflow direction switching. By controlling the first door body 20 and the second door body 30 through the drive assembly 40 to achieve airflow channel switching, the number of airflow switching components is reduced, thus simplifying the airflow channel switching structure of the fresh air unit.

[0066] Optionally, combined Figure 2 and Figure 3 As shown, the first door body 20 is in the shape of an arc-shaped plate. The second door body 30 is in the shape of an arc-shaped plate.

[0067] In this embodiment, the first door 20 is used to open or close one of the first air vent 120 and the third air vent 140, and the second door 30 is used to open or close one of the second air vent 130 and the third air vent 140. The first door 20 and the second door 30 are designed as arc-shaped plates, and their movement trajectories are also arc-shaped. Compared to traditional single-direction air vents, by designing the first door 20 and the second door 30 as arc-shaped plates and controlling their movement along arc-shaped trajectories, the air vents can move in two directions, allowing the first door 20 to switch between the first air vent 120 and the third air vent 140, and the second door 30 to switch between the second air vent 130 and the third air vent 140.

[0068] Optionally, the arc-shaped plate structure of the first door body 20 has a preset curvature; the arc-shaped plate structure of the second door body 30 has a preset curvature; wherein the preset curvatures of the first door body 20 and the second door body 30 are equal.

[0069] In this embodiment, the first door 20 and the second door 30 have the same preset curvature to improve the control accuracy of the first door 20 and the second door 30.

[0070] Optionally, combined Figure 1 and Figure 3As shown, the first door body 20 includes a first tooth 210, which is disposed on one side of the first door body 20 located within the cavity 110. The second door body 30 includes a second tooth 310, which is disposed on one side of the second door body 30 located within the cavity 110. The drive assembly 40 includes a motor 410 and a gear assembly 420. The motor 410 is connected to the input end of the gear assembly 420, and the output end of the gear assembly 420 is rotatably connected to the first tooth 210 and the second tooth 310, respectively. The motor 410 drives the gear assembly 420 to rotate, thereby driving the first door body 20 and the second door body 30 to move relative to the housing 10.

[0071] In this embodiment, a first tooth 210 is provided on the first door body 20, and a second tooth 310 is provided on the second door body 30. The first tooth 210 and the second tooth 310 are rotatably connected to the output end of the gear assembly 420. The motor 410 drives the gear assembly 420 to rotate, and the gear assembly 420 drives the first door body 20 and the second door body 30 to move relative to the housing 10. By using gear transmission, the motor 410 drives the first door body 20 and the second door body 30 to move relative to the housing 10, thereby improving the control accuracy of the drive assembly 40 over the first door body 20 and the second door body 30.

[0072] Optionally, combined Figure 3 As shown, the first tooth 210 is an arc-shaped strip that matches the first door body 20. The second tooth 310 is an arc-shaped strip that matches the second door body 30.

[0073] In this embodiment, by providing a first tooth 210 on the first door body 20 and a second tooth 310 on the second door body 30, the meshing force between the first door body 20, the second door body 30, and the gear assembly 420 is increased. During the rotation of the first tooth 210 and the second tooth 310 driven by the gear assembly 420, the meshing force affects the transmission efficiency and transmission stability. By increasing the meshing force between the first door body 20, the second door body 30, and the gear assembly 420, the stability of the movement of the first door body 20 and the second door body 30 relative to the housing 10 driven by the drive assembly 40 is improved.

[0074] Optionally, combined Figure 1 and Figure 3As shown, the gear assembly 420 includes a first gear 422, a second gear 424, and a third gear 426. The first gear 422 is mounted on the output shaft of the motor 410, and the motor 410 drives the first gear 422 to rotate. The external gear of the second gear 424 is rotatably connected to the external gear of the first gear 422 and the second tooth portion 210. The external gear of the third gear 426 is rotatably connected to the external gear of the second gear 424 and the first tooth portion 210. The second gear 424 drives the third gear 426 to rotate and moves the second door 20 relative to the housing 10. The third gear 426 drives the first door 20 to move relative to the housing 10.

[0075] In this embodiment, combined with Figure 5 and Figure 6 As shown, the motor 410 drives the first gear 422 to rotate, the first gear 422 drives the second gear 424 to rotate, and the second gear 424 drives the third gear 426 to rotate, thus realizing the linkage between the gear assemblies 420. Simultaneously, the second gear 424 drives the second door 30 to move relative to the housing 10, and the third gear 426 drives the first door 20 to move relative to the housing 10, thus realizing the drive assembly 40 driving the first door 20 and the second door 30 to move relative to the housing 10, thereby achieving the switching of the airflow channel.

[0076] Specifically, in combination Figure 5 As shown, motor 410 drives first gear 422 to rotate, first gear 422 drives second gear 424 to rotate, and second gear 424 drives third gear 426 to rotate. Simultaneously, second gear 424 drives second door 30 to move relative to housing 10, closing third vent 140 and opening second vent 130. Third gear 426 drives first door 20 to move relative to housing 10, closing third vent 140 and opening first vent 120. At this time, air circulates through first vent 120 and / or through second vent 130.

[0077] Specifically, in combination Figure 6 As shown, motor 410 drives first gear 422 to rotate in the opposite direction, first gear 422 drives second gear 424 to rotate in the opposite direction, and second gear 424 drives third gear 426 to rotate in the opposite direction. Simultaneously, second gear 424 drives second door 30 to move in the opposite direction relative to housing 10, opening third vent 140 and closing second vent 130. Third gear 426 drives first door 20 to move in the opposite direction relative to housing 10, opening third vent 140 and closing first vent 120. At this time, air circulates through third vent 140.

[0078] Optionally, the radius of the second gear 424 is equal to the radius of the third gear 426. The radius of the first gear 422 is smaller than the radius of the second gear 424 or the third gear 426.

[0079] In this embodiment, the radius of the second gear 424 is equal to the radius of the third gear 426 to improve the synchronization of the movement of the second door 30 relative to the housing 10 driven by the second gear 424 and the movement of the first door 20 relative to the housing 10 driven by the third gear 426. The radius of either the second gear 424 or the third gear 426 is larger than the radius of the first gear 422 to facilitate the switching of speeds between the first gear 422 and the second gear 424, thereby slowing down the speeds of the second gear 424 and the third gear 426 and improving the stability when the second gear 424 and the third gear 426 respectively drive the first door 20 and the second door 30 relative to the housing 10.

[0080] It should be noted that the preset curvature of the first door body 20 and the second door body 30, as well as the radius of the first gear 422, the second gear 424 and the third gear 426, need to be specifically set according to the actual equipment specifications and dimensions, and are not specified here.

[0081] Optionally, combined Figure 2 As shown, the first air vent 120 and the second air vent 130 are spaced apart and disposed on the same side of the housing 10. The third air vent 140 is located between the first air vent 120 and the second air vent 130. The centerline of the third air vent 140 is perpendicular to the centerline of either the first air vent 120 or the second air vent 130.

[0082] In this embodiment, the third air vent 140 is located between the first air vent 120 and the second air vent 130, and the centerline of the third air vent 140 is perpendicular to the centerline of the first air vent 120 or the centerline of the second air vent 130. By staggering the first air vent 120, the second air vent 130 and the third air vent 140, airflow channels in different directions are increased, improving the selectivity and flexibility of airflow channel conversion for the damper mechanism 1.

[0083] Optionally, combine him 2 and Figure 4As shown, the housing 10 includes a first housing 150, a second housing 160, and a third housing 190. The first housing 150 has a first notch 152, a second notch 154, and a third notch 156. The second housing 160 has a fourth notch 162, a fifth notch 164, and a sixth notch 166 corresponding to the first notch 152, the second notch 154, and the third notch 156. The first notch 152 and the fourth notch 162 form a first air vent 120, the second notch 154 and the fifth notch 164 form a second air vent 130, and the third notch 156 and the sixth notch 166 form a third air vent 140. The second housing 160 and the third housing 190 form a cavity 110. A motor 410 is located within the cavity 110 of the second housing 160. The second housing 160 also has a through-type first track 170 and a through-type second track 180. The first door body 20 is slidably connected to the first housing 150 and the third housing 190 through the first track 170, and the second door body 30 is slidably connected to the first housing 150 and the third housing 190 through the second track 180.

[0084] In this embodiment, the first housing 150, the second housing 160, and the third housing 190 are sequentially stacked and connected. Dividing the housing 10 into the first housing 150, the second housing 160, and the third housing 190 facilitates the production of the housing 10 and the assembly of the damper mechanism 1. Furthermore, the second housing 160 is provided with a through-type first track 170 and a through-type second track 180. The first track 170 limits the sliding of the first door 20 along a fixed corresponding track direction, and the second track 180 limits the sliding of the second door 30 along a fixed corresponding track direction. The first door 20 is driven to slide along the first track 170, and the second door 30 is driven to slide along the second track 180 by the drive assembly 40, thereby improving the reliability and stability of the opening or closing of the corresponding air vents by the first door 20 and the second door 30.

[0085] Optionally, combined Figure 4 As shown, the third housing 190 also includes a first groove 192 corresponding to the first track 170 and a second groove 194 corresponding to the second track 180. The first door 20 passes through the first track 170 and is slidably connected to the first groove 192, and the second door 30 passes through the second track 180 and is slidably connected to the second groove 194.

[0086] In this embodiment, the first slide groove 192 is correspondingly arranged with the first track 170, and the second slide groove 194 is correspondingly arranged with the second track 180. The first slide groove 192 and the second slide groove 194 are used to further limit the sliding of the first door 20 and the second door 30 along the corresponding track directions, so as to improve the reliability and stability of the opening or closing of the corresponding air vents of the first door 20 and the second door 30.

[0087] Optionally, the first housing 150 further includes a third sliding groove corresponding to the first track 170 and a fourth sliding groove corresponding to the second track 180. The first door body 20 passes through the first track 170 and is slidably connected to the third sliding groove. The second door body 30 passes through the second track 180 and is slidably connected to the fourth sliding groove.

[0088] In this embodiment, the third slide groove is correspondingly arranged with the first track 170, and the fourth slide groove is correspondingly arranged with the second track 180. The third and fourth slide grooves are used to further limit the sliding of the first door 20 and the second door 30 along the corresponding track directions, so as to improve the reliability and stability of the opening or closing of the corresponding air vents of the first door 20 and the second door 30.

[0089] In some embodiments, combined with Figure 7 and Figure 10 As shown, a fresh air unit 2 is provided, including a housing 50 and a damper mechanism 1 as described in any of the above embodiments. The housing 50 includes a mounting cavity 510, an indoor return air inlet 520 communicating with the mounting cavity 510, an indoor air inlet 530, an outdoor air inlet 540, and an outdoor air outlet 550. The damper mechanism 1 is disposed in the mounting cavity 510, and a first air outlet 120 communicates with the outdoor air inlet 540, and a second air outlet 130 communicates with the outdoor air outlet 550. The damper mechanism 1 is used to control the switching of airflow direction within the mounting cavity 510.

[0090] The fresh air unit 2 provided in this embodiment achieves airflow direction switching within the mounting cavity 510 through the damper mechanism 1, reducing the number of airflow direction switching components and thus simplifying the structure of the fresh air unit 2.

[0091] Optionally, combined Figure 7 and Figure 9 As shown, the fresh air unit 2 also includes: a dehumidification mechanism 60, a humidification mechanism 70, and a water collection tray 80. The dehumidification mechanism 60 is disposed within the mounting cavity 510. The humidification mechanism 70 is disposed within the mounting cavity 510. The water collection tray 80 is disposed within the mounting cavity 510 and located below the dehumidification mechanism 60 and the humidification mechanism 70, and is used to collect the water generated by the dehumidification mechanism 60 and the humidification mechanism 70.

[0092] In this embodiment, by setting up a dehumidification mechanism 60 and a humidification mechanism 70, the fresh air unit 2 has both dehumidification and humidification functions. The damper mechanism 1 works in conjunction with the dehumidification mechanism 60 and the humidification mechanism 70 to achieve integrated operation of one or more functions of fresh air intake, humidification, and dehumidification in the fresh air unit 2, thereby expanding the applicability of the fresh air unit 2 and improving its reliability and practicality. Furthermore, by setting up a water collection tray 80 below the dehumidification mechanism 60 and the humidification mechanism 70, water generated by these mechanisms is collected, reducing the risk of water overflow and damage to the components of the fresh air unit 2.

[0093] Optionally, combined Figure 7 and Figure 8 As shown, the humidification mechanism 70 includes: a guide pipe 710, a pump body 720, and a spray section 730. The pump body 720 is disposed on the guide pipe 710. The spray section 730 is disposed at the water outlet end of the guide pipe 710.

[0094] In this embodiment, the guide pipe 710 is used to guide water to the spray section 730. A pump body 720 is disposed in the guide pipe 710 to increase the flow rate and velocity of water in the guide pipe 710, thereby improving the humidification efficiency of the humidification mechanism 70. The spray section 730 is disposed at the water outlet end of the guide pipe 710 and is used to spray water to humidify the air flowing through the spray section 730.

[0095] Optionally, the inlet end of the guide pipe 710 is connected to the water receiving tray 80.

[0096] In this embodiment, the inlet end of the guide pipe 710 is connected to the water receiving tray 80. The water in the water receiving tray 80 is guided by the guide pipe 710 to be sprayed out of the spray section 730, so that the water collected in the water receiving tray 80 can be used as a humidification water source, realizing wastewater reuse, improving the energy utilization rate of the fresh air unit 2, and improving the reliability of the fresh air unit 2.

[0097] Optionally, combined Figure 8 As shown, there are multiple spray sections 730, which are evenly spaced at the water outlet end of the guide pipe 710.

[0098] In this embodiment, by increasing the number of spray sections 730, the efficiency of water spraying out of the guide pipe 710 is improved, thereby improving the humidification efficiency of the humidification mechanism 70.

[0099] Optionally, combined Figure 9 and Figure 10 As shown, the water receiving tray 80 includes a drain pipe 810, which is used to drain the water collected in the water receiving tray 80.

[0100] In this embodiment, by setting up a drain pipe 810 to drain the water in the water collection tray 80, the risk of excessive water collection in the water collection tray 80 leading to water overflow and damage to the components of the fresh air unit 2 is reduced.

[0101] Optionally, combined Figure 7 and Figure 9 As shown, the fresh air unit 2 also includes a drainage assembly 90. The drainage assembly 90 is disposed on the water receiving tray 80 and is used to guide the water in the water receiving tray 80 out.

[0102] In this embodiment, by setting up a drainage component 90 to guide the water in the water receiving tray 80 to drain out, the water drainage efficiency in the water receiving tray 80 is accelerated, and the probability of water overflowing and damaging the components of the fresh air unit 2 due to excessive water collection in the water receiving tray 80 is further reduced.

[0103] Optionally, combined Figure 7 As shown, the dehumidification mechanism 60 includes a condenser 620 and an evaporator 610. The evaporator 610 is located inside the mounting cavity 510 on the side near the outdoor air inlet 540, and the condenser 620 is located inside the mounting cavity 510 on the side near the indoor air inlet 530.

[0104] In this embodiment, the condenser 620 and the evaporator 610 work together to condense and dehumidify the flowing air. After the air enters the fresh air unit 2, it first passes through the evaporator 610, where it is cooled to below the dew point temperature and liquid water is condensed, thus dehumidifying the air. Then, it is heated by the condenser 620 before entering the room.

[0105] Optionally, combined Figure 7 and Figure 9 As shown, the fresh air unit 2 also includes a partition assembly 92. The partition assembly 92 is disposed in the mounting cavity 510, with one end connected to the damper mechanism 1. The partition assembly 92, in conjunction with the damper mechanism 1, divides the mounting cavity 510 into a first cavity 512, a second cavity 514, a third cavity 516, and a fourth cavity 518. The first cavity 512 is connected to the first air vent 120 and the outdoor air inlet 540, and is also connected to the fourth cavity 518. The second cavity 514 is connected to the second air vent 130 and the outdoor air outlet 550, and is also connected to the third cavity 516. The third cavity 516 is connected to the indoor return air vent 520. The fourth cavity 518 is connected to the indoor air inlet 530. The third air vent 140 connects the first cavity 512 and the second cavity 514. Humidification mechanism 70, dehumidification mechanism 60, and water receiving tray 80 are disposed in the first cavity 512.

[0106] In this embodiment, the partition assembly 92 cooperates with the damper mechanism 1 to divide the mounting cavity 510 into a first cavity 512, a second cavity 514, a third cavity 516, and a fourth cavity 518. The first cavity 512 is connected to the outdoor air inlet 540 and the fourth cavity 518, the second cavity 514 is connected to the outdoor air outlet 550 and the third cavity 516, the third cavity 516 is connected to the indoor return air inlet 520, and the fourth cavity 518 is connected to the indoor air inlet 530. The third air outlet 140 connects the first cavity 512 and the second cavity 514. The partition assembly 92 and the damper mechanism 1 cooperate to form multiple air passages within the fresh air unit 2.

[0107] Specifically, in combination Figure 11 and Figure 12 As shown, with the first air vent 120 and the second air vent 130 open on the first door 20 and the second door 30, and the third air vent 140 closed, air enters the first cavity 512 through the outdoor air inlet 540, then enters the fourth cavity 518, and enters the room through the indoor air inlet 530, forming the first airflow channel. Air enters the third cavity 516 through the indoor return air inlet 520, then enters the second cavity 514, and exits through the outdoor air outlet 550, forming the second airflow channel. With the first air vent 120 and the second air vent 130 closed on the first door 20 and the second door 30, and the third air vent 140 open, air enters the third cavity 516 through the indoor return air inlet 520, then enters the second cavity 514, enters the first cavity 512 through the third air vent 140, then enters the fourth cavity 518, and enters the room through the indoor air inlet 530, forming the third airflow channel.

[0108] In addition, the first door 20 and the second door 30 are driven to move relative to the housing 10 by the drive component 40 in the damper mechanism 1, so as to control the opening or closing of the first air outlet 120, the second air outlet 130 and the third air outlet 140, thereby realizing the switching of the air path channel, reducing the number of air direction switching components, and thus simplifying the structure of the fresh air unit 2.

[0109] Optionally, combined Figure 9 As shown, the fresh air unit 2 also includes a first fan 94 and a second fan 96. The first fan 94 is disposed in the third cavity 516, and the second fan 96 is disposed in the fourth cavity 518.

[0110] In this embodiment, by setting a first fan 94 in the third cavity 516 and a second fan 96 in the fourth cavity 518, the air circulation rate is increased, thereby improving the working efficiency of the fresh air unit 2.

[0111] Optionally, combined Figure 7 and Figure 9 As shown, the fresh air unit 2 also includes a compressor 98, an electronic control assembly 100, and a humidity sensor 102. The compressor 98 is located in the first chamber 512 and is connected to the dehumidification mechanism 60. The electronic control assembly 100 is located on the outside of the housing 10 and is used to control the operation of the damper mechanism 1, the compressor 98, and the humidification mechanism 70. The humidity sensor 102 is located in the third chamber 516 near the indoor return air vent 520, or in the fourth chamber 518 near the indoor air inlet vent 530, to detect indoor humidity and temperature.

[0112] In this embodiment, a humidity sensor 102 is installed in the third cavity 516 near the indoor return air vent 520 or in the fourth cavity 518 near the indoor air inlet 530 to detect the indoor temperature and humidity. Based on the data detected by the humidity sensor 102, the operation of the compressor 98 is controlled to turn the dehumidification mechanism 60 on or off, and the operation of the humidification mechanism 70 and the damper mechanism 1 are also controlled. This enables the fresh air unit 2 to achieve integrated linkage of one or more functions such as fresh air, humidification and dehumidification, thereby improving the applicability of the fresh air unit 2 and enhancing its reliability and practicality.

[0113] It should be noted that the number of spray units 730 and the shape and size of the water collection tray 80 can be specifically set according to actual equipment requirements. The specific positional relationship of the compressor 98, dehumidification mechanism 60, humidification mechanism 70, and water collection tray 80 within the first cavity 110 only needs to ensure that the compressor 98 is connected to the dehumidification mechanism 60, and that the water collection tray 80 is located below the dehumidification mechanism 60 and the humidification mechanism 70, capable of collecting the water generated by both. Therefore, the number of spray units 730, the shape and size of the water collection tray 80, and the specific positional relationship of the compressor 98, dehumidification mechanism 60, humidification mechanism 70, and water collection tray 80 within the first cavity 110 are not specified here.

[0114] In some embodiments, a fresh air unit is provided, including a processor and a memory storing program instructions. It may also include a communication interface and a bus. The processor, communication interface, and memory can communicate with each other via the bus. The communication interface can be used for information transmission. The processor is configured to execute a control method for the fresh air unit when running the program instructions.

[0115] In some embodiments, combined with Figure 13 As shown, a control method for a fresh air system is provided, applicable to the fresh air system described in any of the above embodiments. The control method includes:

[0116] S101, the processor obtains indoor humidity;

[0117] S102, the processor determines the operating mode of the fresh air unit based on the indoor humidity;

[0118] S103, the processor controls the operation of the damper mechanism according to the operating mode.

[0119] The control method for a fresh air system provided in this disclosure can determine an operating mode adapted to the current air conditions based on indoor humidity, and control the operation of the damper mechanism according to the operating mode to achieve airflow channel switching. This control method improves the intelligence level of the fresh air system, thereby enhancing its practicality and reliability.

[0120] Exemplarily, the humidity sensor obtains the indoor humidity in real time and feeds back the current indoor humidity to the processor. The processor determines an operating mode adapted to the current air condition according to the indoor humidity. The processor regulates the electric control component according to the determined operating mode to control the operation of the air damper mechanism and achieve the switching of the air passage.

[0121] Optionally, the step of controlling the operation of the air damper mechanism according to the operating mode includes: when the operating mode is the fresh air mode, controlling the driving component to drive the first door body and the second door body to move relative to the housing to open the first air outlet and the second air outlet and close the third air outlet; or, when the operating mode is the internal circulation mode, controlling the driving component to drive the first door body and the second door body to move in the opposite direction relative to the housing to close the first air outlet and the second air outlet and open the third air outlet.

[0122] In this embodiment, according to the operating mode, the first door body and the second door body are controlled to move relative to the housing to open or close the first air outlet, the second air outlet and the third air outlet, meeting the requirements of different operating modes.

[0123] Specifically, when the fresh air mode is in operation, in order to achieve the exchange and circulation of indoor air and outdoor air, the driving component is controlled to drive the first door body and the second door body to move relative to the housing to open the first air outlet and the second air outlet and close the third air outlet. At this time, the outdoor air inlet, the first air outlet and the indoor air inlet are connected, and the indoor air return port, the second air outlet and the outdoor air outlet are connected. Outdoor fresh air enters the room through the first air passage, and indoor polluted air is discharged outdoors through the second air passage, realizing fresh air replacement. When the internal circulation is in operation, in order to achieve the circulation of indoor air, the driving component is controlled to drive the first door body and the second door body to move relative to the housing to close the first air outlet and the second air outlet and open the third air outlet. At this time, the indoor air return port, the third air outlet and the indoor air inlet are connected. Indoor air circulates indoors through the third air passage, realizing internal circulation.

[0124] Optionally, the step of determining the operating mode of the fresh air machine according to the indoor humidity includes: when RH < RH1, determining that the operating mode is the fresh air mode and the humidification mode; or, when RH1 < RH < RH2, determining that the operating mode is the fresh air mode; or, when RH2 < RH < RH3, determining that the operating mode is the fresh air mode and the dehumidification mode; or, when RH3 < RH, determining that the operating mode is the internal circulation mode and the dehumidification mode; where RH represents the indoor humidity, RH1 represents the first humidity threshold, RH2 represents the second humidity threshold, RH3 represents the third humidity threshold, and RH1 < RH2 < RH3.

[0125] In this embodiment, RH1, RH2, and RH3 are set, where RH1 < RH2 < RH3. When the indoor humidity is between RH1 and RH2, the human body feels relatively comfortable and no air humidity adjustment is required. The fresh air mode is executed to provide fresh air. By comparing the indoor humidity with the first humidity threshold, the second humidity threshold, and the third humidity threshold, the operating mode is determined according to the comparison result to improve the adaptability of the fresh air machine's operating mode to the current air environment and enhance the adjustment efficiency for the current air environment.

[0126] Specifically, when RH < RH1, it indicates that the current indoor air is relatively dry and the human body is prone to discomfort, such as feeling dry mouth, dry tongue, and sore throat. In this case, the humidification mode needs to be run to increase the indoor air humidity, and at the same time, the fresh air mode is run to provide fresh air for the room. When RH1 < RH < RH2, it indicates that the current indoor air is suitable and the human body feels comfortable, and no air humidity adjustment is required. The fresh air mode is run to provide fresh air for the room. When RH2 < RH < RH3, it indicates that the current indoor air is relatively humid. In this case, the dehumidification mode is run to reduce the indoor air humidity, and at the same time, the fresh air mode is run to provide fresh air for the room. When RH3 < RH, it indicates that the current indoor air is overly humid and the current indoor air needs to be quickly dehumidified. In this case, the dehumidification mode is run to reduce the indoor air humidity, and at the same time, the internal circulation mode is run to increase the indoor air circulation efficiency to accelerate the indoor air dehumidification efficiency.

[0127] In some embodiments, in combination with Figure 14 as shown, another control method for the fresh air machine is provided, which is applied to the fresh air machine described in the above-mentioned some embodiments. The control method includes:

[0128] S201, the processor obtains the indoor humidity;

[0129] S202, the processor determines the operating mode of the fresh air machine according to the indoor humidity;

[0130] S203, the processor controls the operation of the dehumidification mechanism and / or the humidification mechanism according to the operating mode;

[0131] S204, the processor controls the operation of the air damper mechanism according to the operating mode.

[0132] By using the control method for the fresh air machine provided in the embodiments of the present disclosure, the operating mode suitable for the current air condition can be determined according to the indoor humidity, and according to the operating mode, the operation of the air damper mechanism, the dehumidification mechanism, and / or the humidification mechanism can be controlled to achieve the switching of the air passage and the switching of the working mode. Through this control method of the fresh air machine, the intelligent degree of the fresh air machine is improved, thereby enhancing the practicability and reliability of the fresh air machine.

[0133] For example, a humidity sensor acquires indoor humidity in real time and feeds the current indoor humidity back to the processor. Based on the indoor humidity, the processor determines an operating mode suitable for the current air conditions. The processor then adjusts the electronic control components according to the determined operating mode to control the operation of the damper mechanism, dehumidification mechanism, and / or humidification mechanism, thereby switching airflow channels and operating modes.

[0134] Optionally, depending on the operating mode, the steps for controlling the operation of the dehumidification unit and / or the humidification unit include: when the operating mode is humidification mode, controlling the humidification unit to turn on and the dehumidification unit to turn off; or, when the operating mode is dehumidification mode, controlling the dehumidification unit to turn on and the humidification unit to turn off.

[0135] In this embodiment, the operation of the dehumidification mechanism and / or humidification mechanism is controlled according to the operating mode to achieve switching between dehumidification mode and humidification mode, thereby improving the intelligence level of the fresh air unit.

[0136] In some embodiments, combined with Figure 15 As shown, another control method for a fresh air system is provided, applied to the fresh air system described in some of the above embodiments. The control method includes:

[0137] S301, the processor retrieves the current season;

[0138] S302, the processor obtains indoor humidity;

[0139] The S303 processor determines the operating mode of the fresh air unit based on the current season and indoor humidity.

[0140] S304, the processor controls the operation of the dehumidification and / or humidification mechanisms according to the operating mode;

[0141] S305, the processor controls the operation of the damper mechanism according to the operating mode.

[0142] The control method for a fresh air system provided in this disclosure can determine the operating mode based on the current season and indoor humidity. The comfortable humidity for humans varies with the season. For example, in summer, the comfortable humidity is 30% to 60%, and in winter, it is 30% to 80%. Based on the current season and indoor humidity, an operating mode adapted to the current air conditions is determined, and the operation of the damper mechanism, dehumidification mechanism, and / or humidification mechanism is controlled according to the operating mode, realizing the switching of airflow channels and the switching of operating modes. This control method for the fresh air system improves its intelligence level.

[0143] For example, a temperature sensor acquires the indoor temperature, and a humidity sensor acquires the indoor humidity in real time, feeding back the current indoor temperature and humidity to the processor. The processor determines the current season based on the indoor temperature. Based on the current season and indoor humidity, the processor determines an operating mode suitable for the current air conditions. The processor adjusts the electronic control components according to the determined operating mode to control the operation of the damper mechanism, dehumidification mechanism, and / or humidification mechanism, thereby achieving airflow channel switching and operating mode switching.

[0144] Optionally, the current season can be obtained through the network module of the fresh air system.

[0145] In this embodiment, the fresh air system includes a network module for connecting to the user's home wireless network. The network module connects to the internet via the wireless network to obtain the current season. The processor then adjusts the air environment based on the current season and indoor humidity, improving the fresh air system's accuracy in regulating the air environment and enhancing its overall intelligence.

[0146] Optionally, the current season can be obtained through devices associated with the fresh air system.

[0147] In this embodiment, devices associated with the fresh air system can communicate with it via a wireless network or Bluetooth. Exemplarily, the devices associated with the fresh air system are a mobile phone, a television, or a computer. Taking a mobile phone as an example, the phone connects to the fresh air system via Bluetooth to achieve communication, or the phone and the fresh air system connect to the same wireless network to achieve communication. The mobile phone has software adapted to the fresh air system downloaded. The software obtains the current seasonal information from the phone and sends this information to the fresh air system via Bluetooth or a wireless network. The processor obtains the current seasonal information and adjusts the current air environment according to the current season and indoor humidity, improving the accuracy of the fresh air system's control over the current air environment.

[0148] It should be noted that any device associated with the fresh air system only needs to be able to communicate with it via wireless network or Bluetooth to enable the fresh air system to obtain the current season. No specific restrictions are placed on the type of device here.

[0149] In some embodiments, combined with Figure 16 As shown, another control method for a fresh air system is provided, applied to the fresh air system described in some of the above embodiments. The control method includes:

[0150] S401, the processor retrieves the current season;

[0151] S402, the processor determines the humidity threshold based on the current season;

[0152] S403, the processor obtains indoor humidity;

[0153] S404, the processor determines the operating mode of the fresh air unit based on the humidity threshold and indoor humidity;

[0154] S405, the processor controls the operation of the dehumidification and / or humidification mechanisms according to the operating mode;

[0155] S406, the processor controls the operation of the damper mechanism according to the operating mode.

[0156] In this embodiment, the air humidity at which the human body feels comfortable varies depending on the season. Different current air humidity levels correspond to different operating modes for the fresh air system. By setting different humidity thresholds according to different seasons, the adaptability of the fresh air system's operating mode to the current air environment is improved, thereby enhancing the intelligence of the fresh air system.

[0157] Optionally, the step of determining the humidity threshold according to the current season includes: RH1 ranging from 35% to 45% in the current winter season; or RH1 ranging from 45% to 55% in the current summer season; or RH2 ranging from 45% to 55% in the current winter season; or RH2 ranging from 55% to 65% in the current summer season; or RH3 ranging from 75% to 85% in the current winter season; or RH3 ranging from 75% to 85% in the current summer season.

[0158] In this embodiment, RH1 represents a first humidity threshold, RH2 represents a second humidity threshold, and RH3 represents a third humidity threshold. For example, in winter, RH1 is set to 40%. In summer, RH1 is set to 50%. In winter, RH2 is set to 50%. In summer, RH2 is set to 60%. In winter, RH3 is set to 80%. In summer, RH3 is set to 80%. By setting different humidity thresholds according to different seasons and comparing indoor humidity with these thresholds, the corresponding operating mode is determined based on the comparison results. The dehumidification and / or humidification mechanisms, as well as the damper mechanism, are controlled to achieve integrated operation of one or more functions of the fresh air unit, including fresh air intake, humidification, and dehumidification. This improves the adaptability of the fresh air unit's operating mode to the current air environment and enhances its regulation efficiency.

[0159] Exemplarily, in the case of summer, the fresh air fan is powered on and running. The processor obtains and determines that the current season is summer, the value corresponding to RH1 is 50%, the specific value of RH2 is 60%, and the specific value of RH3 is 80%. The humidity sensor obtains the current indoor humidity RH in real time and feeds back the indoor humidity RH to the processor. The indoor humidity RH is 55%. Since RH1 < RH < RH2, the processor determines that the operation mode is the fresh air mode. The processor regulates and controls the electronic control component according to the determined operation mode to control the driving component 40 to drive the first door body and the second door body to move relative to the housing, so as to open the first air outlet and the second air outlet and close the third air outlet 140. At the same time, the first fan and the second fan are controlled to be turned on to improve the fresh air replacement efficiency of the fresh air fan. At this time, the outdoor fresh air enters the first cavity through the outdoor air inlet and the first air outlet, then enters the fourth cavity, and then is sent into the room by the second fan through the indoor air inlet. At the same time, the first fan sucks the indoor dirty air from the indoor air return port into the third cavity, and the indoor dirty air then enters the second cavity and is discharged outdoors through the second air outlet and the outdoor air outlet, realizing fresh air replacement.

[0160] Exemplarily, in the case of winter, the fresh air fan is powered on and running. The processor obtains and determines that the current season is winter, the value corresponding to RH1 is 40%, the specific value of RH2 is 50%, and the specific value of RH3 is 80%. The humidity sensor obtains the current indoor humidity RH in real time and feeds back the indoor humidity RH to the processor. The indoor humidity RH is 35%. Since RH < RH1, the processor determines that the operation modes are the fresh air mode and the humidification mode. The processor regulates and controls the electronic control component according to the determined operation modes to control the driving component to drive the first door body and the second door body to move relative to the housing, so as to open the first air outlet and the second air outlet, close the third air outlet, and control the humidification mechanism to be turned on. At the same time, the first fan and the second fan are controlled to be turned on to improve the fresh air replacement and humidification efficiency of the fresh air fan. At this time, the outdoor fresh air enters the first cavity through the outdoor air inlet and the first air outlet, flows through the humidification mechanism located in the first cavity for humidification. The humidified air enters the fourth cavity and is sent into the room by the second fan through the indoor air inlet, realizing fresh air humidification. At the same time, the first fan sucks the indoor dirty air from the indoor air return port into the third cavity, and the indoor dirty air then enters the second cavity and is discharged outdoors through the second air outlet and the outdoor air outlet, realizing fresh air replacement. The humidity sensor obtains the current indoor humidity RH in real time and feeds back the indoor humidity RH to the processor. When RH reaches 40%, the processor switches the operation mode to the fresh air mode. The processor regulates and controls the electronic control component according to the switched operation mode to control the humidification mechanism to be turned off. At this time, the outdoor fresh air passes through the first air passage and is sent into the room by the second fan. The indoor dirty air passes through the second air passage and is discharged outdoors by the first fan, switching to the fresh air mode.

[0161] For example, in winter, the fresh air system is powered on and running. The processor obtains and determines that the current season is winter, corresponding to a RH1 value of 40%, a RH2 value of 50%, and a RH3 value of 80%. The humidity sensor obtains the current indoor humidity RH in real time and feeds it back to the processor. The indoor humidity RH is 85%. Since RH3 < RH, the processor determines the operating mode as internal circulation mode and dehumidification mode. The processor regulates the electronic control components according to the determined operating mode to control the drive components to drive the first and second doors relative to the housing, thereby closing the first and second air vents, opening the third air vent, and controlling the humidification mechanism to close and the dehumidification mechanism to open. At the same time, it controls the first and second fans to turn on, improving the internal circulation and dehumidification efficiency of the fresh air system. At this time, the first fan draws indoor humid air from the indoor return air vent into the third cavity and sends it into the second cavity, while the indoor humid air enters the first cavity through the third air vent. Indoor humid air enters the first chamber, flows through the dehumidification mechanism located within it, and is then dehumidified. The dehumidified air enters the fourth chamber and is then blown into the room by the second fan through the indoor air inlet, achieving internal circulation dehumidification. A humidity sensor continuously monitors the current indoor humidity (RH) and feeds it back to the processor. When the RH reaches 50%, the processor switches to fresh air mode. The processor adjusts the electronic control components according to the switched operating mode to control the dehumidification mechanism to close. Simultaneously, the control drive components move the first and second doors relative to the housing to open the first and second air vents and close the third air vent. At this time, fresh outdoor air passes through the first air duct and is delivered into the room by the second fan. Indoor stale air passes through the second air duct and is exhausted outdoors by the first fan, switching back to fresh air mode.

[0162] Combination Figure 16 As shown, this embodiment of the disclosure provides a fresh air unit 3, including a processor 200 and a memory 300. Optionally, the unit may further include a communication interface 400 and a bus 500. The processor 200, communication interface 400, and memory 300 can communicate with each other via the bus 400. The communication interface 400 can be used for information transmission. The processor 200 can call logical instructions in the memory 300 to execute the control method for the fresh air unit described in the above embodiment.

[0163] Furthermore, the logical instructions in the aforementioned memory 300 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0164] The memory 300, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 200 executes functional applications and data processing by running the program instructions / modules stored in the memory 300, thereby implementing the control method for the fresh air unit in the above embodiments.

[0165] The memory 300 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 300 may include high-speed random access memory and may also include non-volatile memory.

[0166] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0167] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0168] 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.

[0169] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A damper mechanism, characterized in that, Comprising: A housing, including a cavity, a first air vent, a second air vent, and a third air vent that are connected to the cavity; A first door body, disposed on the housing, the first door body being capable of moving relative to the housing to open or close one of the first air vent and the third air vent, the first door body being in the shape of an arc-shaped plate, the first door body including a first tooth portion, the first tooth portion being disposed on the side of the first door body located inside the cavity; A second door body, disposed on the housing, the second door body being capable of moving relative to the housing to open or close one of the second air vent and the third air vent, the second door body being in the shape of an arc-shaped plate, the second door body including a second tooth portion, the second tooth portion being disposed on the side of the second door body located inside the cavity; A drive assembly, disposed inside the cavity, between the first door body and the second door body, the output ends of the drive assembly being respectively connected to the first door body and the second door body; the drive assembly includes a motor and a gear assembly, the motor being connected to the input end of the gear assembly, and the output ends of the gear assembly being respectively rotationally connected to the first tooth portion and the second tooth portion; Wherein, the motor is used to drive the gear assembly to rotate, so as to drive the first door body and the second door body to move relative to the housing.

2. The air damper mechanism according to claim 1, wherein The first air vent and the second air vent are spaced apart and disposed on the same side of the housing; The third air vent, located between the first air vent and the second air vent; Wherein, the center line of the third air vent is perpendicular to the center line of the first air vent or the center line of the second air vent.

3. A fresh air ventilator, characterized in that, Comprising: An outer shell, including an installation cavity, an indoor return air vent, an indoor air inlet, an outdoor air inlet, and an outdoor air outlet that are connected to the installation cavity; And The air damper mechanism according to claim 1 or 2, the air damper mechanism is disposed in the installation cavity, and the first air vent is in through connection with the outdoor air inlet, the second air vent is in through connection with the outdoor air outlet, and the air damper mechanism is used to control the switching of the air flow direction in the installation cavity.

4. The fresh air system according to claim 3, characterized in that, Further comprising: A dehumidification mechanism, disposed in the installation cavity; A humidification mechanism, disposed in the installation cavity; A water receiving tray, disposed in the installation cavity, and located below the dehumidification mechanism and the humidification mechanism, for collecting the water generated by the dehumidification mechanism and the humidification mechanism.

5. A control method for a fresh air unit, characterized in that, Applied to the fresh air blower according to claim 3, the control method includes: Obtaining the indoor humidity; Determining the operating mode of the fresh air blower according to the indoor humidity; Controlling the operation of the air damper mechanism according to the operating mode.

6. The control method for a fresh air unit according to claim 5, characterized in that, The step of controlling the operation of the air damper mechanism according to the operating mode includes: In the case where the operating mode is the fresh air mode, controlling the drive assembly to drive the first door body and the second door body to move relative to the housing, so as to open the first air vent and the second air vent, and close the third air vent; or, In the case where the operating mode is the internal circulation mode, controlling the drive assembly to drive the first door body and the second door body to move in the opposite direction relative to the housing, so as to close the first air vent and the second air vent, and open the third air vent.

7. The control method for a fresh air unit according to claim 5 or 6, characterized in that, The step of determining the operating mode of the fresh air blower according to the indoor humidity includes: In the case where RH < RH1, determining that the operating mode is the fresh air mode and the humidification mode; or, In the case where RH1 < RH < RH2, determining it as the fresh air mode; or, In the case where RH2 < RH < RH3, determining it as the fresh air mode and the dehumidification mode; or, ​ Where RH represents indoor humidity, RH1 represents the first humidity threshold, RH2 represents the second humidity threshold, and RH3 represents the third humidity threshold, with RH1 < RH2 < RH3.

8. The control method for a fresh air unit according to claim 5 or 6, characterized in that, Applied to the fresh air system as described in claim 4, after the step of determining the operating mode of the fresh air system, the control method further includes: Control the operation of the dehumidification and / or humidification mechanisms according to the operating mode.

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