Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner, and belongs to the field of air conditioners. The wall-mounted air conditioner comprises a main body, and the main body comprises a machine shell, an indoor heat exchanger, a base, a heat exchange fan, a fresh air volute, a driving motor, a transmission mechanism, a first air door and a second air door; the transmission mechanism comprises a transmission gear, a first transmission part and a second transmission part. The first transmission part is respectively connected with the transmission gear and the first air door; and the second transmission part is connected with the transmission gear and the second air door, the transmission gear drives the first air door to move through the first transmission part so as to open or close the fresh air inlet, and meanwhile, the second transmission part drives the second air door to move so as to open or close the fresh air outlet. The space needed by movement of the first air door and the second air door can be reduced, so that the size of the fresh air module is reduced, and meanwhile the cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of air conditioner technology, and particularly relates to a wall-mounted air conditioner. Background Technology

[0002] Currently, most wall-mounted air conditioners are limited by size and weight, and their functions are relatively limited, usually only able to cool or heat indoor air. If users feel that the indoor air is stale or stuffy after running the air conditioner for a long time, the usual solution is to open the windows for ventilation, which is rather inconvenient.

[0003] According to relevant technologies, wall-mounted air conditioners have both heat exchange modules and fresh air modules. The fresh air module can exhaust fresh air drawn in from the outside into the room to exchange indoor air, thus improving the functionality of the wall-mounted air conditioner. However, due to unreasonable structural design, the damper drive structure of the fresh air inlet and outlet of the fresh air module is complex and has room for improvement. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a wall-mounted air conditioner that can reduce the space required for the movement of the first and second air dampers, thereby reducing the size of the fresh air module and simultaneously reducing costs.

[0005] In a first aspect, this application provides a wall-mounted air conditioner, comprising:

[0006] The main body, the main body includes:

[0007] The housing has an internal cavity and a heat exchange inlet and a heat exchange outlet on its surface.

[0008] An indoor heat exchanger is disposed within the accommodating cavity;

[0009] A heat exchange fan is installed inside the volute air duct and is located on the side of the indoor heat exchanger away from the heat exchange air inlet.

[0010] Its characteristic is that it further includes:

[0011] Fresh air volute, wherein a fresh air inlet and a fresh air outlet are formed on the fresh air volute;

[0012] A drive motor, which is mounted on the fresh air volute;

[0013] The first air damper is movably installed at the fresh air inlet and is used to open or close the fresh air inlet.

[0014] The second air damper is movably installed at the fresh air outlet and is used to open or close the fresh air outlet.

[0015] A transmission mechanism is provided, through which the drive motor drives the first damper and the second damper to move synchronously.

[0016] The transmission mechanism includes:

[0017] A transmission gear, which is dynamically coupled to the output end of the drive motor;

[0018] The first transmission component is connected to the transmission gear and the first damper respectively;

[0019] The second transmission component is connected to the transmission gear and the second damper respectively. The transmission gear drives the first damper to move through the first transmission component to open or close the fresh air inlet, and at the same time drives the second damper to move through the second transmission component to open or close the fresh air outlet.

[0020] According to the wall-mounted air conditioner of this application, by setting a transmission mechanism, the drive mechanism can simultaneously drive the first transmission component and the second transmission component through the transmission gear in the working state, so that the first air damper and the second air damper move synchronously, thereby controlling the opening and closing of the fresh air inlet and the fresh air outlet. Compared with the scheme in which the first air damper and the second air damper open or close the fresh air inlet and the fresh air outlet by rotating, the space required for the movement of the first air damper and the second air damper can be reduced, thereby reducing the volume of the fresh air module.

[0021] According to one embodiment of this application, the first transmission member includes a first rack, which is connected to the first damper and is dynamically coupled to the transmission gear;

[0022] The second transmission component includes a second rack and a connecting rod. The second rack is dynamically coupled to the transmission gear, and the connecting rod is pivotally connected to the second damper and the second rack, respectively.

[0023] According to one embodiment of this application, the fresh air outlet and the fresh air inlet are respectively disposed on both sides of the transmission gear in the front-to-back direction, and the first rack and the second rack are respectively disposed on both sides of the transmission gear in the up-down direction. When the transmission gear rotates, it drives the first rack and the second rack to move in opposite directions.

[0024] According to one embodiment of this application, the following conditions are met: α≥5°, β≥5°; where α is the angle formed between the extension direction of the connecting rod and the vertical direction when the fresh air outlet is fully closed, and β is the angle formed between the extension direction of the connecting rod and the horizontal direction when the fresh air outlet is fully open.

[0025] In this embodiment, by setting the angles α and β, angles such as 90° and 180° between the connecting rod and the second rack can be avoided, thereby reducing the jamming during the movement of the connecting rod and improving the smoothness of the movement of the second damper.

[0026] According to one embodiment of this application, the transmission gear includes a first gear and a second gear coaxially connected, one of the first gear and the second gear being dynamically coupled to the first rack, and the other of the first gear and the second gear being dynamically coupled to the second rack.

[0027] According to one embodiment of this application, the following condition is satisfied: L1 > H2;

[0028] Wherein, L1 is the length of the connecting rod, and H2 is the stroke of the second rack.

[0029] According to one embodiment of this application, the fresh air volute includes: a first volute and a second volute, wherein the second volute is located on the side of the first volute facing the heat exchange fan;

[0030] The second volute includes a volute half and a fan cover. The fan cover is located on the side of the first volute facing the heat exchange fan. The volute half is located between the first volute and the fan cover. The first volute and the volute half form a volute cavity and a fresh air inlet. The volute cavity is used to install a fresh air fan. The fan cover and the volute half form a fresh air cavity and a fresh air outlet. The first rack and the second rack slide in engagement with the volute half.

[0031] According to one embodiment of this application, at least one of the two side walls of the second rack along the axial direction of the transmission gear is provided with a slide rail, and at least one of the volute half and the fan cover is provided with a slide groove that slides in cooperation with the slide rail.

[0032] According to one embodiment of this application, the second transmission member further includes a connector, which is connected to the second damper and pivotally connected to the connecting rod. The connector is provided with a slider. The fan cover is provided with a guide groove that positions and cooperates with the slider, and the guide groove extends along the height direction of the main body.

[0033] According to one embodiment of this application, the volute half is provided with a first limiting portion, which is used to limit the end point of the stroke of the first rack; and / or, the volute half is provided with a second limiting portion, which is used to limit the end point of the stroke of the connector.

[0034] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 This is one of the structural schematic diagrams of the wall-mounted air conditioner provided in the embodiments of this application;

[0037] Figure 2 This is one of the partial structural schematic diagrams of the wall-mounted air conditioner provided in the embodiments of this application;

[0038] Figure 3 This is a second partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0039] Figure 4 This is the third partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0040] Figure 5 This is the fourth partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0041] Figure 6 This is the fifth partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0042] Figure 7 This is the sixth partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0043] Figure 8 This is the seventh partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0044] Figure 9 This is the eighth partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application;

[0045] Figure 10 This is the ninth partial structural schematic diagram of the wall-mounted air conditioner provided in the embodiments of this application.

[0046] Figure label:

[0047] Wall-mounted air conditioner 10000, main body 1000;

[0048] 1. Housing; 11. Heat exchange air inlet; 12. Heat exchange air outlet;

[0049] Fresh air volute 2, fresh air inlet 21, fresh air outlet 22, first volute 23, second volute 24, volute half 241, first limiting part 2411, second limiting part 2412, axial ventilation port 2413, fan cover 242, guide groove 2421, volute cavity V1, fresh air cavity V2, slide groove 243;

[0050] Drive motor 3, transmission mechanism 4, first rack 41, second rack 42, connecting rod 43, transmission gear 44, first gear 441, second gear 442, slide rail 4421, connecting piece 445, slider 4451;

[0051] 5. First air damper; 6. Second air damper; 7. Fresh air fan; 8. Purification component. Detailed Implementation

[0052] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0053] This application describes the structure of a wall-mounted air conditioner 10000.

[0054] Before proceeding, let's introduce the structure of a common air conditioner. The most common type of air conditioner is the split-type air conditioner, which consists of an indoor unit and an outdoor unit. The indoor and outdoor units are connected by pipes to transfer refrigerant. The indoor unit includes an indoor heat exchanger and a heat exchange fan.

[0055] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan, and a throttling device. The compressor, outdoor heat exchanger, throttling device, and indoor heat exchanger are connected in sequence to form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor heat exchanger and the indoor heat exchanger, respectively, to achieve the air conditioner's cooling mode or heating mode.

[0056] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0057] The outdoor heat exchanger is configured to exchange heat between outdoor air and refrigerant transported within it. For example, in the cooling mode of the air conditioner, the outdoor heat exchanger operates as a condenser, causing the refrigerant compressed by the compressor to dissipate heat to the outdoor air and condense. In the heating mode of the air conditioner, the outdoor heat exchanger operates as an evaporator, causing the depressurized refrigerant to absorb heat from the outdoor air and evaporate.

[0058] In some embodiments, the outdoor heat exchanger further includes heat exchange fins to increase the contact area between the outdoor air and the refrigerant transported in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0059] The outdoor fan is configured to draw in outside air into the outdoor unit and expel the outdoor air, which has been heated by the outdoor heat exchanger, to the outside. The outdoor fan provides power for the flow of outdoor air.

[0060] A throttling device connects the outdoor and indoor heat exchangers. It regulates the refrigerant pressure flowing through both devices, thereby controlling the refrigerant flow rate between them. The flow rate and pressure of the refrigerant between the outdoor and indoor heat exchangers affect their heat exchange performance. The throttling device can be a throttling tube, an electronic valve, etc. When the throttling device is an electronic valve, its opening is adjustable to regulate the refrigerant flow rate and pressure.

[0061] Some designs also include a four-way valve in the air conditioner. The four-way valve is connected to the refrigerant circuit and is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner can perform cooling mode or heating mode.

[0062] An indoor heat exchanger is configured to exchange heat between indoor air and a refrigerant transported within the indoor heat exchanger. In some embodiments, the indoor heat exchanger further includes heat exchange fins to increase the contact area between the indoor air and the refrigerant transported within the indoor heat exchanger, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0063] The heat exchange fan is configured to draw indoor air into the indoor unit and deliver the indoor air, after heat exchange with the indoor heat exchanger, into the room, providing power for the flow of indoor air.

[0064] Air conditioners also include a control unit, which is mainly used to control the compressor's operating frequency and the opening degree of the throttling device. Some control units can also control the speed of the outdoor fan and the heat exchange fan. The control unit is connected to the compressor, throttling device, outdoor fan, and heat exchange fan via data cables to transmit communication information.

[0065] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor, or an application-specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device.

[0066] Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or keyboard drive).

[0067] This application discloses a wall-mounted air conditioner 10000, which is an indoor unit. The wall-mounted air conditioner 10000 is typically installed on a wall, for example, in the upper area of ​​an interior wall.

[0068] The following description, with reference to the accompanying drawings, describes a wall-mounted air conditioner 10000 according to an embodiment of this application.

[0069] like Figures 1-10 As shown, the wall-mounted air conditioner 10000 according to an embodiment of this application includes: a main body 1000.

[0070] like Figure 1 As shown, the main body 1000 includes: a housing 1. An accommodating cavity is formed inside the housing 1, and a heat exchange air inlet 11 and a heat exchange air outlet 12 are formed on the housing 1. The housing 1 serves a protective function and constitutes the overall external structure of the wall-mounted air conditioner 10000.

[0071] Typically, the casing 1 is a long, rectangular shell, with its length positioned horizontally, meaning it is mounted on the wall laterally. In some actual products, to facilitate the drainage of condensate, the casing 1 is mounted horizontally on the wall at a small angle to the horizontal plane.

[0072] The main body 1000 also includes an indoor heat exchanger, which is located within the accommodating cavity. As mentioned above, the indoor heat exchanger is a loop in the refrigerant circuit, through which refrigerant flows to cool or heat the air flowing from the surface of the indoor heat exchanger.

[0073] In a wall-mounted air conditioner 10000, the indoor heat exchanger typically extends along the length of the casing 1. For example, the indoor heat exchanger is a two-fold or three-fold heat exchanger, and each fold of the indoor heat exchanger is a plate-like structure extending along the length.

[0074] The main body 1000 also includes a base, which is disposed within the accommodating cavity. The base is an internal mounting support structure of the main body 1000, and the indoor heat exchanger can be mounted on the base. In this embodiment, a volute air duct is formed on the base. After the indoor air enters the casing 1, it is guided by the volute air duct to ensure that the indoor air encounters less resistance when flowing through the indoor heat exchanger.

[0075] The main body 1000 also includes a heat exchange fan, which is installed inside the volute air duct.

[0076] In this application, the heat exchange fan can be a cross-flow fan, which has low noise and large air volume. Furthermore, the air velocity of the cross-flow fan is more evenly distributed along its axial direction, which helps to increase the air delivery distance and range. Moreover, using a cross-flow fan, and having it positioned along the length of the main body 1000mm, ensures that the driven airflow can pass through the entire indoor heat exchanger, guaranteeing a balanced heat exchange efficiency across all parts of the indoor heat exchanger.

[0077] The main body 1000 also includes a first motor, which is located within the accommodating cavity. The first motor is used to drive a heat exchange fan to rotate, so that air exchanges heat with the indoor space inside the air conditioner.

[0078] The casing 1 is provided with a heat exchange outlet 12 and a heat exchange inlet 11. When the heat exchange fan is running, it draws indoor air into the casing 1 through the heat exchange inlet 11. After heat exchange with the indoor heat exchanger, the heat-exchanged air is sent to the room through the heat exchange outlet 12, thereby achieving the regulation of the indoor ambient temperature.

[0079] The indoor heat exchanger can be used as an evaporator to provide cooling airflow to the indoor space through the heat exchange outlet 12, or it can be used as a condenser to provide heating airflow to the indoor space through the heat exchange outlet 12.

[0080] In this application, the heat exchange air inlet 11 is located above the heat exchange air outlet 12 in the height direction of the main body 1000, which facilitates air intake from above and air exhaust from below. In this application, the height direction of the main body 1000 is the vertical direction.

[0081] Understandably, the main unit 1000 is usually installed on the wall, and to avoid interfering with people's daily lives, it is typically hung at a high position. By setting the main unit 1000 to blow out heat exchange air from below, the blown heat exchange air is less likely to be blocked by the roof or ground. This results in less resistance and energy loss during the air blowing process, a wider air delivery range, and allows the heat exchange air to flow throughout the entire indoor space as quickly as possible, thus improving heat exchange efficiency.

[0082] The heat exchange air inlet 11 is located above the heat exchange air outlet 12. The heat exchange air inlet 11 can take in air from above, which can avoid taking in air from the heat exchange air outlet 12. This prevents the heat exchange air from being blown out of the heat exchange air outlet 12 and directly being sucked into the heat exchange air inlet 11, reducing the process of heat exchange air idling without participating in the indoor heat exchange.

[0083] In some embodiments, the heat exchange air inlet 11 is located on the top of the housing 1, i.e., in an area not visible to the user. By hiding the heat exchange air inlet 11, the aesthetic appearance can be improved.

[0084] In some embodiments, the heat exchange outlet 12 is located directly in front of the housing 1, that is, the heat exchange outlet 12 blows air towards the front of the main body 1000. It can be understood that the side of the main body 1000 connected to the wall is usually referred to as the back or rear side, and the side opposite to the rear side is referred to as the front side. Therefore, when the heat exchange outlet 12 is located directly in front of the housing 1, the air outlet is away from the wall, the air resistance is small, and the air delivery range is wide.

[0085] In other embodiments, the heat exchange outlet 12 is located on the front side of the housing 1 and near the bottom. It can also be said that the heat exchange outlet 12 is located at the lower front corner of the housing 1. In this case, the heat exchange air blown out by the heat exchange outlet 12 flows forward and downward at the same time. This allows the heat exchange air to sink and fall on people or objects on the ground after being delivered a certain distance, so that people or objects on the ground can be in a comfortable indoor environment as soon as possible.

[0086] In this application, the heat exchange fan is located on the side of the indoor heat exchanger away from the heat exchange air inlet 11. It is understood that the heat exchange fan is a power-driven component that rotates to drive indoor air to exchange heat with the indoor heat exchanger, and it is also a power-driven component for air delivery.

[0087] Placing the heat exchange fan on the side of the indoor heat exchanger away from the heat exchange inlet 11 can evenly distribute the aerodynamic force generated when the heat exchange fan rotates. Part of it is distributed to the air inlet side, so that the intake air can overcome the wind resistance generated by the indoor heat exchanger when it flows into the volute air duct. The other part is distributed to the air outlet side, so that the air after heat exchange can be transported a longer distance when it is blown out from the heat exchange outlet 12.

[0088] In this application, the first motor is located at one end of the length of the main body 1000. This facilitates the installation and maintenance of the first motor, and the main body 1000 as a whole does not need to become excessively tall or thick due to the placement of the first motor. Here, the height direction of the main body 1000 is consistent with the vertical direction, and the thickness direction of the main body 1000 is consistent with the front-to-back direction.

[0089] like Figure 3 As shown, the wall-mounted air conditioner 10000 also includes: a fresh air fan 7, which is a centrifugal fan with axial air intake and radial air outlet, and the fresh air fan 7 is located on the side of the heat exchange fan away from the first motor.

[0090] Centrifugal fans are characterized by their compact structure, large air volume, and low noise. Furthermore, fan noise decreases significantly as the speed decreases. Therefore, smaller centrifugal fans can be selected for both fresh air fans (7) and exhaust fans to meet high air volume requirements. Centrifugal fans also exhibit low vibration and noise, making them less prone to resonance with the indoor heat exchanger, effectively controlling the overall vibration and noise of the wall-mounted air conditioner (10000 model).

[0091] like Figure 2 and Figure 3 As shown, the wall-mounted air conditioner 10000 also includes: a fresh air volute 2, a fresh air duct formed inside the fresh air volute 2, a fresh air fan 7 installed inside the fresh air volute 2, and a fresh air inlet 21 and a fresh air outlet 22 formed on the fresh air volute 2. The rotation of the fresh air fan 7 allows outdoor air to enter the fresh air volute 2 through the fresh air inlet 21, and allows outdoor air entering the fresh air volute 2 to enter the room through the fresh air outlet 22.

[0092] In this application, a fresh air module is constructed by the fresh air duct 2 and the fresh air fan 7. The fresh air fan 7 is installed in the fresh air duct and is used to drive airflow to be drawn in from the fresh air inlet 21 and exhausted into the room through the fresh air outlet 22. The operation of the fresh air fan 7 provides the power for the flow of fresh air. Thus, by setting up a fresh air duct and cooperating with the fresh air fan 7, when the indoor air is relatively polluted or the air quality is average, the fresh air fan 7 can drive relatively fresh outdoor air into the indoor environment to improve the indoor airflow environment.

[0093] In this embodiment, the fresh air fan 7 is placed on the side of the exhaust fan facing the indoor heat exchanger, which can reduce the loss of indoor cooling or heat and improve the comfort when fresh air is blown into the room.

[0094] In this embodiment, the fresh air module where the fresh air fan 7 is located is close to the indoor heat exchanger. The fresh air drawn in from the outside can absorb the cold or heat released by the indoor heat exchanger before being blown into the room, so that the fresh air is as close as possible to the indoor temperature before being blown into the room.

[0095] In this way, when the wall-mounted air conditioner is cooling (10000), the fresh air absorbs the cold air from the indoor heat exchanger, lowering the temperature of the incoming fresh air and preventing hot outdoor air from being blown directly into the room. When the wall-mounted air conditioner is heating (10000), the fresh air absorbs the heat from the indoor heat exchanger, raising the temperature of the incoming fresh air and preventing cold outdoor air from being blown directly into the room.

[0096] It should be noted that when describing the internal structure of the 10000 wall-mounted air conditioner components, the terms "axial", "radial", and "circumferential" are all based on the axial, radial, and circumferential directions of the motor. That is, the direction parallel to the extension direction of the output shaft of the drive motor 3 is the axial direction, the direction perpendicular to the extension direction of the output shaft is the radial direction, and the direction around the output shaft is the circumferential direction.

[0097] In some embodiments, the fresh air fan 7 may be made of plastic, thus being lightweight and low-cost. However, this application is not limited to this; the fresh air fan 7 may also be made of resin, metal, or other materials.

[0098] In some embodiments, the fresh air volute 2 can be a plastic part, thus being lightweight and low-cost. Optionally, the fresh air volute 2 can be an injection-molded part. Of course, the present application is not limited to this; the fresh air volute 2 can also be a metal part, etc.

[0099] The main body 1000 also includes a drive motor 3, a transmission mechanism 4, a first damper 5 and a second damper 6. The drive motor 3 is installed on the fresh air volute 2, and the drive motor 3 drives the first damper 5 and the second damper 6 to move synchronously through the transmission mechanism 4.

[0100] In related technologies, the dampers at the fresh air inlet and the fresh air outlet are driven by corresponding motors, that is, the dampers at the fresh air inlet and the fresh air outlet are controlled and driven by corresponding motors, which is costly; or, in some solutions, in order to reduce the number of motors, the outlet baffle is eliminated or the outlet baffle is removed, resulting in a poor user experience.

[0101] In this embodiment, a drive motor 3 can be used to drive the first damper 5 and the second damper 6 to move synchronously, so as... Figure 6 and Figure 7 As shown, simultaneously open the fresh air inlet 21 and the fresh air outlet 22, or as shown Figure 4 and Figure 5 As shown, simultaneously closing the fresh air inlet 21 and the fresh air outlet 22 can reduce costs, and the simultaneous opening or closing of the fresh air inlet 21 and the fresh air outlet 22 can reduce noise such as howling and muffled sounds.

[0102] The first damper 5 is used to open or close the fresh air inlet 21, and the second damper 6 is used to open or close the fresh air outlet 22.

[0103] In this embodiment, the first air door 5 and the second air door 6 move by translation. Compared with the scheme of opening or closing the first air door 5 and the second air door 6 by rotation, the space required for the first air door 5 and the second air door 6 to move can be reduced, thereby reducing the volume of the fresh air module.

[0104] Among them, such as Figure 8 As shown, the transmission mechanism 4 includes: a transmission gear, a first transmission component, and a second transmission component.

[0105] The transmission gear 44 is poweredly coupled to the output end of the drive motor 3, and the drive motor 3 drives the transmission gear 44 to rotate forward or reverse when it is in operation.

[0106] The first transmission component is connected to the transmission gear 44 and the first damper 5, respectively. The second transmission component is connected to the transmission gear 44 and the second damper 6, respectively. The transmission gear 44 drives the first damper 5 to move through the first transmission component to open or close the fresh air inlet 21. At the same time, the transmission gear 44 drives the second damper 6 to move through the second transmission component to open or close the fresh air outlet 22.

[0107] For example, the first transmission member and the transmission gear 44 can be combined into one or more combinations of a rack and pinion mechanism, a cam mechanism, a linkage mechanism, and a flexible mechanism.

[0108] For example, the second transmission member and the transmission gear 44 can be combined into one or more combinations of a rack and pinion mechanism, a cam mechanism, a linkage mechanism, and a flexible mechanism.

[0109] In this embodiment, the transmission of the first transmission member, the second transmission member, and the transmission gear 44 can convert the rotational motion of the output shaft of the drive motor 3 into the linear motion of the first damper 5 and the second damper 6.

[0110] In some embodiments, such as Figure 8 As shown, the first transmission component and the second transmission component are respectively connected to the transmission gear 44 by power coupling. When the transmission gear 44 is rotating, it can drive the first transmission component and the second transmission component to move synchronously.

[0111] The first damper 5 is connected to the first transmission component, and the transmission gear 44 drives the first damper 5 to move through the first transmission component to open or close the fresh air inlet 21. For example, the moving direction of the first damper 5 can be perpendicular to the air intake direction of the fresh air inlet 21, or the moving direction of the first damper 5 can form an angle with the air intake direction of the fresh air inlet 21.

[0112] The second damper 6 is connected to the second transmission component. The transmission gear 44 drives the second damper 6 to move in a direction perpendicular to the air outlet direction of the fresh air outlet 22 through the second transmission component to open or close the fresh air outlet 22.

[0113] In some embodiments, such as Figure 3 As shown, the first damper 5 moves in a straight line and is perpendicular to the air intake direction of the fresh air inlet 21, and the second damper 6 moves in a straight line and is perpendicular to the air outlet direction of the fresh air outlet 22.

[0114] According to the wall-mounted air conditioner 10000 provided in the embodiments of this application, by setting a transmission mechanism 4, the drive mechanism can simultaneously drive the first air damper 5 and the second air damper 6 to move synchronously in the working state, thereby controlling the opening and closing of the fresh air inlet 21 and the fresh air outlet 22. Compared with the scheme of opening or closing the fresh air inlet 21 and the fresh air outlet 22 by rotating the first air damper 5 and the second air damper 6, the space required for the movement of the first air damper 5 and the second air damper 6 can be reduced, thereby reducing the volume of the fresh air module.

[0115] In some embodiments, such as Figure 4 and Figure 6As shown, the first transmission component includes: a first rack 41, which is connected to the first damper 5 and is dynamically coupled to the transmission gear 44. The first rack 41 and the transmission gear 44 are dynamically coupled to convert the rotation of the transmission gear 44 into linear movement.

[0116] For example, the first rack 41 and the first damper 5 can be connected by snap-fit, adhesive, welding or thread; when the transmission gear 44 rotates, it can drive the first rack 41 to move in a straight line, thereby driving the first damper 5 to move to open or close the fresh air inlet 21.

[0117] Among them, such as Figure 4 and Figure 6 As shown, the second transmission component includes a second rack 42 and a connecting rod 43. The second rack 42 is dynamically coupled to the transmission gear 44, and the connecting rod 43 is pivotally connected to the second damper 6 and the second rack 42 respectively.

[0118] When the transmission gear 44 rotates, it can drive the second rack 42 to move linearly in the opposite direction to the first rack 41, thereby driving the connecting rod 43 to rotate. The rotation of the connecting rod 43 drives the second damper 6 to move to open or close the fresh air outlet 22.

[0119] The connecting rod 43 is pivotally connected to the second damper 6 and the second rack 42 respectively. The second rack 42, the connecting rod 43 and the second damper 6 form a crank-slider 4451 structure. The second rack 42 moves in reciprocating linear motion under the drive of the transmission gear 44, thereby driving the second damper 6 to move in reciprocating linear motion, thereby opening or closing the fresh air outlet 22.

[0120] Link 43 can change the movement of the second rack 42 in the front-back direction to the movement of the second damper 6 in the up-down direction, so that the movement direction of the second damper 6 intersects with that of the first damper 5.

[0121] In this embodiment, the drive motor 3 drives the transmission gear 44 to rotate. The rotation of the transmission gear 44 drives the first rack 41 and the second rack 42 to move synchronously. The first rack 41 drives the first damper 5 to move, and the second rack 42 drives the connecting rod 43 to rotate, thereby driving the second damper 6 to move. Thus, the rotation of the output shaft of the drive motor 3 can be converted into linear motion of the first damper 5 and the second damper 6 through the transmission mechanism 4. Compared with the scheme of controlling the opening of the air vent by rotating the dampers, this reduces the space required for the movement of the first damper 5 and the second damper 6, thereby reducing the size of the fresh air module. The design is simple, reliable, and low-cost.

[0122] In some embodiments, the first transmission component includes a first rack 41 and a connecting rod 43. The first rack 41 is dynamically coupled to the transmission gear 44 and is connected to the first damper 5 through the connecting rod 43. The second transmission component includes a second rack 42, which is dynamically coupled to the transmission gear 44 and the second damper 6.

[0123] The second rack 42 is dynamically coupled to the transmission gear 44 and the second damper 6, respectively. The movement direction of the second damper 6 is the same as that of the second rack 42. The movement direction of the first rack 41 is parallel to that of the second rack 42. The connecting rod 43 is pivotally connected to the first rack 41 and the first damper 5, respectively. The connecting rod 43 can make the movement direction of the second damper 6 different from that of the first rack 41, thereby causing the movement directions of the second damper 6 and the first damper 5 to intersect.

[0124] In this configuration, the transmission gear 44 meshes with both the second rack 42 and the first rack 41 to convert the rotation of the transmission gear 44 into the translation of the second rack 42 and the first rack 41. The second rack 42 or the first rack 41 is pivotally connected to the connecting rod 43, which can change the direction of translation of the second rack 42 or the first rack 41, thereby causing the movement directions of the second damper 6 and the first damper 5 to intersect. In some embodiments, such as... Figure 8 As shown, the fresh air outlet 22 and the fresh air inlet 21 are respectively located on both sides of the transmission gear 44 in the front-to-back direction. This can control the direction of fresh air inlet and outlet, improve the comfort of air blowing, and provide clearance for the transmission mechanism 4.

[0125] In this embodiment, the fresh air outlet 22 is located at the front of the main body 1000, and the fresh air inlet 21 is located at the rear of the main body 1000.

[0126] For example, the fresh air outlet 22 is located at the front or bottom front of the main body 1000, and the fresh air inlet 21 is located at the rear or bottom rear of the main body 1000.

[0127] The first rack 41 and the second rack 42 are respectively disposed on both sides of the transmission gear 44 in the vertical direction. The second rack 42 cooperates with the connecting rod 43 to realize the synchronous movement of the first rack 41 and the second rack 42 in opposite directions.

[0128] In this embodiment, the distribution direction of the fresh air outlet 22 and the fresh air inlet 21 is perpendicular to the distribution direction of the first rack 41 and the second rack 42.

[0129] When the transmission gear 44 rotates, it drives the first rack 41 and the second rack 42 to move in opposite directions. With the first rack 41 and the second rack 42 moving relative to each other, the fresh air outlet 22 and the fresh air inlet 21 open simultaneously. (See also...) Figure 6 and Figure 7 When the first rack 41 and the second rack 42 move in opposite directions, the fresh air outlet 22 and the fresh air inlet 21 close simultaneously. (See below) Figure 4 and Figure 5 .

[0130] In some embodiments, such as Figure 1 As shown, the fresh air outlet 22 can be located at the front of the main body 1000, and the air outlet of the casing 1 can be correspondingly located on the front side of the casing 1, which facilitates the output of fresh air from the front of the main body 1000. When the wall-mounted air conditioner 10000 is installed on the wall, especially at a high position on the wall, there are few obstructions in front, and the air outlet from the front can ensure a large air supply area for fresh air.

[0131] In some embodiments, such as Figure 1 As shown, the fresh air outlet 22 can be located directly in front of and near the bottom of the main body 1000.

[0132] Since the heat exchange air inlet 11 is located above the heat exchange air outlet 12, and the heat exchange air outlet 12 is relatively low on the casing 1, the fresh air outlet 22 blows fresh air from below, making the air outlet area of ​​the casing 1 close to or even partially overlap with the air outlet area of ​​the heat exchange air outlet 12. This is beneficial for the fresh air to mix with the indoor air after heat exchange, improving the uniformity of the fresh air after mixing in the indoor air, and allowing the fresh air to absorb the cold or heat of the indoor air after heat exchange, making the fresh air temperature approach the indoor temperature and improving the comfort of air blowing.

[0133] Furthermore, the air outlet 22 is far from the air inlet 11, so fresh air will not be drawn into the heat exchange inlet 11. This reduces the proportion of fresh air intake at the heat exchange inlet 11, resulting in a larger total air volume of the wall-mounted air conditioner 10000 and improving the overall circulation efficiency of indoor air.

[0134] In this application, the fresh air inlet 21 is located below the main body 1000 in terms of height. It is understood that the fresh air inlet 21 needs to be connected to a duct to introduce outdoor air; this duct is referred to here as the fresh air inlet pipe. The fresh air inlet pipe can be a component of the wall-mounted air conditioner 10000, or it can be a fresh air inlet pipe separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0135] The fresh air inlet 21 is positioned below the main body 1000, allowing the fresh air intake pipe to connect to it from below. The connection extends roughly vertically, rather than horizontally, which would make the main body 1000 too thick, thus maintaining the slim and lightweight shape of the wall-mounted air conditioner 10000. Furthermore, the portion of the fresh air volute 2 that houses the fresh air fan 7 is circular. Since the axis of the fresh air volute 2 extends along the length of the main body 1000, there is free space on both the front and rear sides of the bottom. This space can be used to house the fresh air inlet 21 to connect to the fresh air intake pipe. The connection between the fresh air intake pipe and the fresh air inlet 21 can be placed within this free space without occupying additional space, thus controlling the height of the main body 1000.

[0136] The fresh air inlet 21 is oriented upwards. In other words, the air intake direction of the fresh air inlet 21 is perpendicular to the length direction of the main body 1000. When a fresh air inlet pipe is connected to the fresh air inlet 21, the fresh air inlet pipe will not cause the wall-mounted air conditioner 10000 to be excessively elongated.

[0137] The fresh air inlet 21 is located at the bottom of the main body 1000 and is set near the rear side. This makes it easy to arrange the fresh air inlet pipe close to the wall after it is connected to the fresh air inlet 21.

[0138] In some embodiments, such as Figure 1 As shown, the housing 1 is provided with an air outlet. The air outlet of the housing 1 is set to correspond to the fresh air outlet 22 of the fresh air volute 2, so that the fresh air discharged from the fresh air outlet 22 is discharged from the air outlet of the housing 1.

[0139] In some embodiments, such as Figure 1 As shown, the air outlet of the housing 1 is provided with a filter grille to protect and filter the fresh air outlet 22, reduce the amount of debris entering the fresh air outlet 22, and at the same time, it has a shielding effect to improve the aesthetics of the wall-mounted air conditioner.

[0140] In some embodiments, such as Figure 4 and Figure 6 As shown, the following conditions must be met: α≥5°, β≥5°; where α is the angle formed between the extension direction of the connecting rod 43 and the vertical direction when the fresh air outlet 22 is fully closed, and β is the angle formed between the extension direction of the connecting rod 43 and the horizontal direction when the fresh air outlet 22 is fully open.

[0141] α and β can be the same or different, depending on the application scenario and structural dimensions.

[0142] In this embodiment, by setting the angles α and β, angles such as 90° and 180° between the connecting rod 43 and the second rack 42 can be avoided, thereby reducing the possibility of the connecting rod 43 getting stuck and improving the smoothness of the movement of the second damper 6.

[0143] In some embodiments, such as Figure 8 As shown, the transmission gear 44 includes a first gear 441 and a second gear 442 coaxially connected. One of the first gear 441 and the second gear 442 is dynamically coupled to the first rack 41, and the other of the first gear 441 and the second gear 442 is dynamically coupled to the second rack 42.

[0144] The first gear 441 and the second gear 442 are combined to form a double gear, and the transmission ratio of the first gear 441 and the second gear 442 can be adjusted according to the different strokes of the first rack 41 and the second rack 42.

[0145] In some embodiments, the first gear 441 is dynamically coupled to the first rack 41, and the second gear 442 is dynamically coupled to the second rack 42. The transmission ratio of the first gear 441 is determined according to the first rack 41, and the transmission ratio of the second gear 442 is determined according to the second rack 42.

[0146] For example, the travel distance H1 of the first rack 41 and the travel distance H2 of the second rack 42 satisfy: H1 / H2 = 1 / 3, then the transmission ratio i1 of the first gear 441 and the transmission ratio i2 of the second gear 442 satisfy: i1 / i2 = 3.

[0147] In some embodiments, the following condition is satisfied: L1 > H2; where L1 is the length of the connecting rod 43 and H2 is the travel distance of the second rack 42.

[0148] In this embodiment, if L1 < H2, the maximum stroke is the length of the connecting rod 43, and the stroke of the second damper 6 does not meet the requirements, so the fresh air outlet 22 cannot be completely closed; if L1 = H2, the angle between the extension direction of the connecting rod 43 and the movement direction of the second rack 42 will be 180°. During the turning process of the connecting rod 43, the second damper 6 may vibrate and jam due to problems such as center of gravity and assembly clearance; if L1 > H2, the jamming of the connecting rod 43 can be reduced, the smoothness of the movement of the second damper 6 can be improved, and the stroke requirement of the second damper 6 can be met, so that the fresh air outlet 22 can be closed.

[0149] In some embodiments, H1 > H2; where H2 is the travel distance of the second rack 42.

[0150] In this embodiment, by setting the travel distance H2 of the second rack 42 to be less than the travel distance H1 of the first rack 41, during the opposite movement of the first damper 5 and the second damper 6, the situation where the fresh air outlet 22 cannot be completely closed due to the travel distance of the second rack 42 being greater than that of the first rack 41 can be reduced, thereby improving the user experience and aesthetics.

[0151] A typical power distribution system architecture is as follows: drive motor → main drive gear → transmission gear set → synchronous distribution shaft, which then distributes the power to the large diameter gear and the small diameter gear. The rack coupled to the large diameter gear has a long stroke, while the rack coupled to the small diameter gear has a short stroke.

[0152] In this embodiment, the first gear 441 is a large-diameter gear, corresponding to the first rack 41 with a long stroke H1; the second gear 442 is a small-diameter gear, corresponding to the second rack 42 with a short stroke H2.

[0153] The stroke H1 of the first rack 41 satisfies: H1=π×d1×n×t, where: d1 is the pitch circle diameter of the first gear 441, n is the rotational speed, and t is the time;

[0154] The stroke H2 of the first rack 42 satisfies: H2=π×d2×n×t, where: d2 is the pitch circle diameter of the second gear 442, n is the rotational speed, and t is the time;

[0155] Since d1 > d2, therefore H1 > H2. In some embodiments, such as Figure 3 and Figure 9 As shown, the fresh air volute 2 includes: a first volute 23 and a second volute 24. The second volute 24 is located on the side of the first volute 23 facing the heat exchange fan. The second volute 24 includes a volute half 241 and a fan cover 242. The fan cover 242 is located on the side of the first volute 23 facing the heat exchange fan. The volute half 241 is located between the first volute 23 and the fan cover 242. A volute cavity V1 and a fresh air inlet 21 are formed between the first volute 23 and the volute half 241. The volute cavity V1 is used to install the fresh air fan 7. A fresh air cavity V2 and a fresh air outlet 22 are formed between the fan cover 242 and the volute half 241.

[0156] In this embodiment, the first rack 41 and the second rack 42 slide in conjunction with the volute half 241, which can increase the stability of the movement of the first rack 41 and the second rack 42, thereby increasing the stability of the movement of the first damper 5 and the second damper 6.

[0157] For example, the first rack 41 and the second rack 42 can slide together through a structure such as a slide groove 243, a slide rail 4421, a guide groove 2421, or a slider 4451.

[0158] In some embodiments, such as Figure 4 and Figure 6 As shown, the first transmission component and the second transmission component are disposed between the volute half 241 and the fan cover 242. The first transmission component and the second transmission component can be slidably connected to at least one of the volute half 241 and the fan cover 242, which increases the smoothness of the movement of the first transmission component and the first transmission component and prevents the first transmission component and the second transmission component from being exposed, thus increasing the aesthetics.

[0159] The volute half 241 and the fan cover 242 are detachably connected, and the first volute 23 is detachably connected to the volute half 241.

[0160] The first volute 23 includes a first volute 23 end plate and a first volute 23 surrounding plate, the first volute 23 surrounding plate extending along the edge of the first volute 23 end plate toward the heat exchange fan.

[0161] In this embodiment, the fresh air volute 2 is divided into at least a first volute 23 and a second volute 24 along the axial direction and processed separately. This reduces the difficulty of manufacturing and assembly, and the separate manufacturing of such a complex housing facilitates quality control. The second volute 24 is detachably connected to the first volute 23, which facilitates assembly and subsequent adjustment and maintenance.

[0162] The volute half 241 is located on the side of the first volute 23 facing the heat exchange fan and is detachably connected to the first volute 23. The volute half 241 has an axial ventilation port 2413 at the center in the radial direction. A volute cavity V1 is formed between the volute half 241 and the first volute 23. The fresh air fan 7 is located in the volute cavity V1. The axial air inlet end of the fresh air fan 7 is set facing the axial ventilation port 2413. The volute half 241 and the first volute 23 surround a fresh air outlet 22.

[0163] The fan cover 242 is located on the side of the volute half 241 facing the heat exchange fan and is detachably connected to the volute half 241. The cavity enclosed by the fan cover 242 and the second volute half 24 is the fresh air cavity V2, and the fan cover 242 and the second volute half 24 enclose the fresh air inlet 21.

[0164] With this configuration, a fresh air cavity V2 is formed at the air inlet of the fresh air fan 7. This fresh air cavity V2 can cover the axial air inlet of the fresh air fan 7. The fresh air cavity V2 can contain air, allowing air to enter the fresh air fan 7 vertically along the axial direction from the fresh air cavity V2, thereby improving the air intake efficiency of the fresh air fan 7 and reducing air intake loss.

[0165] The fan shroud 242 is located on the side of the volute half 241 facing the indoor heat exchanger, thus separating the volute cavity V1 from the indoor heat exchanger. When the indoor heat exchanger is cooling, it absorbs heat from the fresh air cavity V2, gradually lowering the fresh air temperature. Because of the fan shroud 242, the indoor heat exchanger is further away from the volute cavity V1, reducing the cooling capacity of the indoor heat exchanger and making it less likely for the air in the volute cavity V1 to become supercooled and condensate.

[0166] In this way, even if the incoming fresh air is cooled, it will not become too cold and produce condensation. Furthermore, even if condensation occurs in the fresh air chamber V2, the condensate tends to remain within V2 and is less likely to enter the volute chamber V1 and be blown into the room, thus preventing water from being blown out of the fresh air module. When the indoor heat exchanger is heating, it absorbs the cooling energy from the fresh air chamber V2, gradually increasing the fresh air temperature. The heated air then enters the volute chamber V1 and mixes thoroughly, resulting in warmer air being blown out of the fresh air module.

[0167] In some embodiments, such as Figure 3 As shown, the wall-mounted air conditioner 10000 also includes a purification component 8, which is installed in the fresh air duct, so that the fresh air blown into the room is purified and the cleanliness of the indoor air is improved.

[0168] In this embodiment, the purification component 8 is installed inside the fresh air cavity V2, that is, the purification component 8 is located at the axial air intake end of the fresh air fan 7. The rotation of the fresh air fan 7 allows outdoor air to enter the fresh air volute 2 from the fresh air inlet 21, and allows the outdoor air entering the fresh air volute 2 to be blown through the purification component 8 and then enter the room from the fresh air outlet 22.

[0169] This allows the fresh airflow to pass almost vertically over the purification component 8, further reducing fresh air intake consumption and increasing fresh air volume. Furthermore, when the indoor heat exchanger is in cooling mode, causing condensation in the fresh air, the condensation can remain on the purification component 8 as the air flows through it, further preventing water from being blown out of the fresh air module.

[0170] In some embodiments, the purification component 8 is connected to the second volute 24, which facilitates the assembly of the purification component 8 and prevents it from interfering with the fresh air fan 7.

[0171] In some embodiments, the purification component 8 includes a filter screen covering the axial vent 2413. The filter screen covers the entire air intake end of the fresh air fan 7, providing a large coverage area and excellent filtration performance. The filter screen arrangement helps ensure sufficient contact area with the flowing air, and is lightweight with low noise during airflow.

[0172] For example, the filter is a HEPA filter, which has a strong adsorption capacity and a strong filtering effect on dust in the air.

[0173] For example, the filter screen is plate-shaped, so that the filter screen is relatively thin and will not take up too much space when placed in the two-way ventilation assembly.

[0174] For example, the filter screen is square, which makes it easy to position and install the filter screen.

[0175] For example, the filter screen is a square mesh, with its side length greater than the diameter of the axial vent 2413. The square mesh is easy to position during fixing, does not easily wobble after fixing, and is easy to process with minimal processing waste. By making the side length of the filter screen greater than the diameter of the axial vent 2413, all fresh air entering the axial vent 2413 can flow through the filter screen, resulting in high filtration cleanliness.

[0176] In some embodiments, a portion of the fresh air cavity V2 constitutes an empty cavity, which is located on the side of the purification component 8 away from the fresh air fan 7, and the fresh air inlet 21 communicates with the cavity.

[0177] In other words, the purification component 8 is installed in the fresh air cavity V2 near the fresh air fan 7. The part of the fresh air cavity V2 away from the fresh air fan 7 is a cavity, that is, the cavity is between the oncoming air of the purification component 8 and the inner surface of the fan cover 242. In this way, the cavity is in a negative pressure state when the fresh air fan 7 is running, so that the airflow can automatically flow into the cavity from the fresh air inlet 21, reducing the air flow resistance.

[0178] The cavity is equivalent to the air intake negative pressure chamber of the fresh air fan 7. The design of the air intake negative pressure chamber has many advantages:

[0179] 1. Improved Air Intake Efficiency. In this embodiment, a negative pressure chamber is provided to increase the buffer space on the intake side of the fresh air fan 7, making it easier for the fresh air fan 7 to draw in air, thereby increasing the air intake volume of the fresh air fan 7. Moreover, the presence of the negative pressure chamber allows the fresh air to be buffered and adjusted before entering the fresh air fan 7, reducing fluctuations and turbulence in the fresh air flow, which is beneficial to improving the air intake stability of the fresh air fan 7. Without the cavity and buffer space, the flow resistance would increase, and the operating power consumption of the fresh air fan 7 would rise.

[0180] II. Optimize airflow distribution. In this embodiment, the negative pressure chamber buffers and guides the airflow, which is beneficial for guiding the airflow axially into the fresh air fan 7.

[0181] Third, reduce airflow impact and absorb noise.

[0182] In this way, while increasing the air intake volume of the fresh air module, it also improves the overall air intake reliability and stability.

[0183] In some embodiments, such as Figure 5As shown, at least one of the two side walls of the second rack 42 along the axial direction of the transmission gear 44 is provided with a slide rail 4421, and at least one of the volute half 241 and the fan cover 242 is provided with a slide groove 243 that slides with the slide rail 4421.

[0184] The volute half 241 and the fan cover 242 are respectively disposed on both sides of the second rack 42 along the thickness direction along the axial direction of the transmission gear 44, and at least one of the volute half 241 and the fan cover 242 is in sliding engagement with the second rack 42.

[0185] For example, the second rack 42 has slide rails 4421 on both sides along its thickness direction, and the volute half 241 and the fan cover 242 are both provided with sliding grooves 243. The slide rail 4421 of the second rack 42 facing the volute half 241 slides into the sliding groove 243 on the volute half 241, and the slide rail 4421 of the second rack 42 facing the fan cover 242 slides into the sliding groove 243 on the fan cover 242. That is, the second rack 42 slides into both the volute half 241 and the fan cover 242, increasing the stability of the movement of the second rack 42.

[0186] For example, the second rack 42 is provided with a slide rail 4421 facing the side wall of the volute half 241, and the volute half 241 is provided with a slide groove 243 that slides with the slide rail 4421. The second rack 42 slides with the volute half 241.

[0187] For example, the second rack 42 is provided with a slide rail 4421 on the side wall facing the fan cover 242, and the fan cover 242 is provided with a slide groove 243 that slides with the slide rail 4421. The second rack 42 slides with the fan cover 242.

[0188] In this embodiment, the slide rail 4421 and the slide groove 243 define the movement trajectory of the second rack 42, so that the second rack 42 can slide along the preset trajectory.

[0189] In some embodiments, such as Figure 8 As shown, the second transmission component also includes a connector 445, which is connected to the second damper 6 and pivotally connected to the connecting rod 43.

[0190] For example, the connector 445 and the second damper 6 can be connected by at least one of snap-fit, plug-in, and threaded connection.

[0191] The connector 445 is provided with a slider 4451, and the fan cover 242 is provided with a guide groove 2421 that is positioned and cooperates with the slider 4451. The guide groove 2421 extends along the height direction of the main body 1000.

[0192] Guided by the guide groove 2421, the connector 445 moves along the height direction of the main body 1000, limiting the movement trajectory of the connector 445, thereby limiting the movement trajectory of the second air door 6.

[0193] In this embodiment, by setting a connector 445 and positioning and slidingly engaging the connector 445 with the fan cover 242, the movement trajectory of the second damper 6 can be determined, thereby increasing the stability of the movement of the second damper 6.

[0194] In some embodiments, the connector 445 includes a first connecting portion and a second connecting portion. The first connecting portion extends along the moving direction of the second damper 6 and is connected to the second damper 6. The first connecting portion is provided with a slider 4451 that is positioned and slidably engaged with the guide groove 2421 of the fan cover 242. The second connecting portion is connected to the first connecting portion and protrudes in a direction away from the first connecting portion. The second connecting portion is pivotally connected to the connecting rod 43.

[0195] The connector 445 serves to connect the second damper 6, to be positioned and slidably engaged with the fan cover 242, and to be pivotally connected with the connecting rod 43.

[0196] In some embodiments, such as Figure 7 As shown, the volute half 241 is provided with a first limiting part 2411, which is used to limit the end point of the stroke of the first rack 41.

[0197] The first limiting part 2411 can be a protrusion, a locking block or a groove structure, etc. The first limiting part 2411 is located at the end of the stroke of the first rack 41 to limit the end of the stroke of the first rack 41 so that the first rack 41 can reciprocate normally.

[0198] In some embodiments, such as Figure 10 As shown, the volute half 241 is provided with a second limiting part 2412, which is used to limit the end point of the travel of the connecting member 445.

[0199] The second limiting part 2412 can be a groove, a protrusion or a locking block structure, etc. The connecting member 445 is limited to the end point of its stroke by the second limiting part 2412, thereby limiting the movement trajectory of the second air door 6.

[0200] For example, the second limiting part 2412 can be a groove, and the second connecting part of the connector 445 moves in the groove. The groove wall is the starting point and ending point of the travel of the connector 445.

[0201] In this embodiment, by setting a first limiting member and a second limiting member, the movement stroke of the first damper 5 and the second damper 6 can be limited so that the first damper 5 and the second damper 6 can reciprocate.

[0202] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0203] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0204] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0205] In the description of this application, "multiple" means two or more.

[0206] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0207] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0208] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0209] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A wall-mounted air conditioner, comprising: The main body, the main body includes: The housing has an internal cavity and a heat exchange inlet and a heat exchange outlet on its surface. An indoor heat exchanger is disposed within the accommodating cavity; A heat exchange fan is installed inside the volute duct of the main body and is located on the side of the indoor heat exchanger away from the heat exchange air inlet. Its characteristic is that it further includes: Fresh air volute, wherein a fresh air inlet and a fresh air outlet are formed on the fresh air volute; A drive motor, which is mounted on the fresh air volute; The first air damper is movably installed at the fresh air inlet and is used to open or close the fresh air inlet. The second air damper is movably installed at the fresh air outlet and is used to open or close the fresh air outlet. A transmission mechanism is provided, through which the drive motor drives the first damper and the second damper to move synchronously. The transmission mechanism includes: A transmission gear, which is dynamically coupled to the drive motor; The first transmission component is connected to the transmission gear and the first damper respectively; The second transmission component is connected to the transmission gear and the second damper respectively. The transmission gear drives the first damper to move through the first transmission component to open or close the fresh air inlet, and at the same time drives the second damper to move through the second transmission component to open or close the fresh air outlet.

2. The wall-mounted air conditioner according to claim 1, characterized in that, The first transmission component includes a first rack, which is connected to the first damper and is also dynamically coupled to the transmission gear. The second transmission component includes a second rack and a connecting rod. The second rack is dynamically coupled to the transmission gear, and the connecting rod is pivotally connected to the second damper and the second rack, respectively.

3. The wall-mounted air conditioner according to claim 2, characterized in that, The fresh air outlet and the fresh air inlet are respectively located on both sides of the transmission gear in the front-to-back direction, and the first rack and the second rack are respectively located on both sides of the transmission gear in the vertical direction. When the transmission gear rotates, it drives the first rack and the second rack to move in opposite directions.

4. The wall-mounted air conditioner according to claim 2, characterized in that, Satisfy: α≥5°, β≥5°; Wherein, α is the angle formed between the extension direction of the connecting rod and the vertical direction when the fresh air outlet is fully closed, and β is the angle formed between the extension direction of the connecting rod and the horizontal direction when the fresh air outlet is fully open.

5. The wall-mounted air conditioner according to claim 2, characterized in that, The transmission gear includes a first gear and a second gear coaxially connected, one of the first gear and the second gear being dynamically coupled to the first rack, and the other of the first gear and the second gear being dynamically coupled to the second rack.

6. The wall-mounted air conditioner according to claim 2, characterized in that, Satisfy: L1 > H2; Wherein, L1 is the length of the connecting rod, and H2 is the stroke of the second rack.

7. The wall-mounted air conditioner according to any one of claims 2-6, characterized in that, The fresh air volute includes: a first volute and a second volute, wherein the second volute is located on the side of the first volute facing the heat exchange fan; The second volute includes a volute half and a fan cover. The fan cover is located on the side of the first volute facing the heat exchange fan. The volute half is located between the first volute and the fan cover. The first volute and the volute half form a volute cavity and a fresh air inlet. The volute cavity is used to install a fresh air fan. The fan cover and the volute half form a fresh air cavity and a fresh air outlet. The first rack and the second rack slide in engagement with the volute half.

8. The wall-mounted air conditioner according to claim 7, characterized in that, At least one of the two side walls of the second rack along the axial direction of the transmission gear is provided with a slide rail, and at least one of the volute half and the fan cover is provided with a slide groove that slides in cooperation with the slide rail.

9. The wall-mounted air conditioner according to claim 7, characterized in that, The second transmission component also includes a connector, which is connected to the second damper and pivotally connected to the connecting rod. The connector is provided with a slider. The fan cover is provided with a guide groove that positions and cooperates with the slider, and the guide groove extends along the height direction of the main body.

10. The wall-mounted air conditioner according to claim 9, characterized in that, The volute half is provided with a first limiting part, which is used to limit the end point of the stroke of the first rack. And / or, The volute half is provided with a second limiting part, which is used to limit the end point of the travel of the connector.

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