Wall-mounted air conditioner

Abstract

The application discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a shell, a fresh air shell, a fresh air fan, an air outlet valve, an electric driving element and a transmission mechanism. The shell is provided with a shell air outlet. The fresh air shell is arranged in a containing cavity of the shell. The fresh air shell is provided with a fresh air inlet and a fresh air outlet. The fresh air fan is arranged in the fresh air shell. The fresh air fan can rotate to make outdoor air enter the fresh air shell from the fresh air inlet, and make the outdoor air in the fresh air shell enter a room through the fresh air outlet and the shell air outlet. The electric driving element is used to drive the air outlet valve to move through the transmission mechanism, so that the air outlet valve opens or closes the fresh air outlet. According to the wall-mounted air conditioner, the electric driving element drives the air outlet valve to move through the transmission mechanism, so that the adjustment process of the air outlet valve is motorized. The user does not need to manually adjust the air outlet valve, and the opening degree of the air outlet valve is accurate.

Description

Technical Field

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

[0002] In related technologies, wall-mounted air conditioners are equipped with a fresh air system, which can introduce purified outdoor air into the room to replenish the room with fresh air. The fresh air outlet of the fresh air system is equipped with an outlet valve. Users can manually adjust the outlet valve to adjust the airflow direction and volume at the fresh air outlet. However, this manual adjustment method cannot accurately adjust the opening of the outlet valve and does not meet the usage scenario of wall-mounted air conditioners, making it inconvenient for users to adjust the outlet valve. Utility Model Content

[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a wall-mounted air conditioner capable of electrically regulating the air outlet valve.

[0004] The wall-mounted air conditioner according to an embodiment of this application includes a casing, an accommodating cavity formed inside the casing, and an air outlet on the casing. The casing serves a protective function and constitutes the overall external structure of the wall-mounted air conditioner.

[0005] The wall-mounted air conditioner also includes a fresh air housing, which is disposed within the accommodating cavity. A fresh air duct is formed within the fresh air housing, and the housing has a fresh air inlet and a fresh air outlet, both of which are connected to the fresh air duct. Outdoor air can enter the fresh air duct through the fresh air inlet, and the outdoor air within the duct can enter the room through the fresh air outlet and the housing outlet. The housing outlet provides space for the fresh air to exit.

[0006] The wall-mounted air conditioner also includes a fresh air fan, which is installed inside the fresh air housing. The rotation of the fresh air fan allows outdoor air to enter the fresh air housing from the fresh air inlet, and allows the outdoor air entering the fresh air housing to enter the room through the fresh air outlet and the housing outlet.

[0007] The wall-mounted air conditioner also includes an air outlet valve, which is used to open or close the fresh air outlet. When the air outlet valve is open, outdoor air in the fresh air duct can enter the room through the fresh air outlet; when the air outlet valve is closed, outdoor air in the fresh air duct cannot enter the room through the fresh air outlet.

[0008] The wall-mounted air conditioner also includes an electric drive component and a transmission mechanism. The electric drive component is connected to the transmission mechanism, which is connected to the air outlet valve. The electric drive component drives the air outlet valve via the transmission mechanism to open or close the fresh air outlet.

[0009] According to the wall-mounted air conditioner of the present application embodiment, an electric drive component is provided to drive the transmission mechanism to move, and the movement of the transmission mechanism drives the movement of the air outlet valve, so that the adjustment process of the air outlet valve is electric, the user does not need to manually adjust the air outlet valve, and the opening degree of the air outlet valve is accurate.

[0010] According to some embodiments of this application, the transmission mechanism is a multi-stage gear transmission mechanism. The multi-stage gear transmission mechanism enables intelligent control of the air outlet valve. Gear transmission is simple in structure and reliable in transmission.

[0011] The transmission mechanism includes a first gear, which is connected to the electric drive component, and the electric drive component is used to drive the first gear to rotate.

[0012] The transmission mechanism further includes a second gear, which is connected to the air outlet valve. When the second gear rotates, it is adapted to drive the air outlet valve to rotate.

[0013] The transmission mechanism further includes at least one intermediate gear, which is used to transmit the power from the first gear to the second gear.

[0014] According to some embodiments of this application, there is one intermediate gear, which meshes with the first gear and also meshes with the second gear. The rotational speed of the first gear is greater than the rotational speed of the intermediate gear, and the rotational speed of the intermediate gear is greater than the rotational speed of the second gear. When there is one intermediate gear, the transmission mechanism is a two-stage gear reduction transmission mechanism.

[0015] According to some embodiments of this application, the reduction ratio between the first gear and the intermediate gear is 2.54:1, and the reduction ratio between the intermediate gear and the second gear is 2.51:1.

[0016] According to some embodiments of this application, the second gear includes a gear section, which is constructed as a sector gear. The sector gear satisfies the rotation stroke requirement of the air outlet valve while avoiding the redundant structure of a full-circumference gear.

[0017] The second gear further includes a connecting part, one end of which is connected to the gear part, and the other end of which is connected to the air outlet valve. The connecting part allows the air outlet valve to be separated from the gear part, preventing interference between them. Furthermore, when the gear part rotates, the connecting part can cause the air outlet valve to flip.

[0018] When the gear rotates, it drives the connecting part to rotate. The rotation of the connecting part, in turn, causes the air outlet valve to flip, opening or closing the fresh air outlet. The air outlet valve electrically opens the fresh air outlet by flipping outwards and electrically closes it by flipping inwards. This ensures accurate valve operation and allows for precise and adjustable valve opening, avoiding the inaccuracies of manual valve adjustment.

[0019] According to some embodiments of this application, the connecting part includes a first segment and a second segment. The first segment is connected to the gear part, one end of the second segment is connected to the first segment, and the other end of the second segment is connected to the air outlet valve. The angle between the first segment and the second segment is an obtuse angle, and the second segment bends towards the front and lower part of the wall-mounted air conditioner relative to the first segment.

[0020] According to some embodiments of this application, the fresh air housing includes a first housing and a second housing, the second housing being detachably connected to the first housing, forming an air inlet cavity between the second housing and the first housing, and the fresh air inlet communicating with the air inlet cavity, the fresh air inlet being disposed on the first housing and / or the second housing. The second housing and the first housing are designed as separate units, making it convenient to install and disassemble the components inside the air inlet cavity.

[0021] The fresh air housing also includes a third housing, which is detachably connected to the second housing. An air outlet cavity is formed between the third housing and the second housing, and the air outlet cavity is connected to the air inlet cavity. The fresh air outlet is disposed on the second housing and / or the third housing, and the fresh air outlet is connected to the air outlet cavity. The separate design of the third housing and the second housing facilitates the installation and disassembly of the components inside the air outlet cavity.

[0022] The wall-mounted air conditioner also includes an air guide duct, which is installed at the fresh air outlet. The fresh air outlet and the air outlet of the unit casing are connected through the air guide duct, and the flow area of ​​the air guide duct gradually increases in the airflow direction. Therefore, the air guide duct can amplify the outdoor air blown out of the fresh air outlet, reducing the wind speed reaching the air outlet of the unit casing, thus avoiding discomfort to the user when the wind speed is too high.

[0023] The air guide duct is disposed between the air outlet valve and the gear section, and the air guide duct has a clearance hole for the connecting part to pass through. The clearance hole prevents interference between the connecting part and the air guide duct when the second gear rotates.

[0024] According to some embodiments of this application, the first housing, the second housing, and the third housing are arranged sequentially along the length of the housing, and the electric drive component is installed on the first housing and / or the second housing to achieve the installation and fixation of the electric drive component.

[0025] According to some embodiments of this application, the housing includes a sealing plate with an annular structure. The housing air outlet is surrounded by the sealing plate, and the air outlet end of the air guide tube abuts against the inner end of the sealing plate. The sealing plate is used to seal the gap between the air guide tube and the housing. Therefore, the air guide tube can better and more effectively direct outdoor air blown from the fresh air outlet to the housing air outlet, preventing outdoor air blown from the fresh air outlet from leaking into the housing.

[0026] When the air outlet valve abuts against the sealing plate, the fresh air outlet is closed; when the air outlet valve separates from the sealing plate, the fresh air outlet is opened.

[0027] According to some embodiments of this application, the wall-mounted air conditioner further includes a purification component installed inside the air inlet cavity, and a fresh air fan installed inside the air outlet cavity. The rotation of the fresh air fan allows outdoor air to enter the fresh air housing from the fresh air inlet, and also allows the outdoor air entering the fresh air housing to pass through the purification component before entering the room from the fresh air outlet. The purification component is used to purify the fresh air blown into the room, improving the cleanliness of the indoor air.

[0028] According to some embodiments of this application, the wall-mounted air conditioner further includes an indoor heat exchanger disposed within the accommodating cavity. The first housing is disposed on the side of the second housing away from the indoor heat exchanger, and the third housing is disposed on the side of the second housing closer to the indoor heat exchanger. The first housing, second housing, and third housing are arranged in a reasonable manner, which can make full use of the space in the left-right direction of the wall-mounted air conditioner.

[0029] According to some embodiments of this application, the wall-mounted air conditioner further includes an air inlet valve, which is used to open or close the fresh air inlet. When the air outlet valve opens the fresh air inlet, the air inlet valve opens the fresh air outlet, and the fresh air fan rotates, outdoor air can enter the fresh air housing from the fresh air inlet, and outdoor air entering the fresh air housing can enter the room through the fresh air outlet and the housing outlet.

[0030] The transmission mechanism also includes a rack, which meshes with the first gear. The rack is mounted on the air inlet valve. When the first gear drives the rack to move, the rack drives the air inlet valve to move, thereby opening or closing the fresh air inlet. The air inlet valve and the air outlet valve share the same electric drive component, which saves on the number of electric drive components and reduces the overall cost of the wall-mounted air conditioner.

[0031] According to some embodiments of this application, the air outlet of the housing is located at the bottom of the housing to guide the outdoor air blown out from the fresh air outlet to flow forward and downward into the room. This allows the fresh air to flow forward and downward, ensuring that the fresh air reaches the ground and also travels a sufficiently long distance.

[0032] 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

[0033] Figure 1 This is a three-dimensional schematic diagram of a wall-mounted air conditioner according to an embodiment of this application when the air outlet valve is in the closed state;

[0034] Figure 2 This is a perspective view of a wall-mounted air conditioner according to an embodiment of this application when the air outlet valve is in the closed state;

[0035] Figure 3 This is a three-dimensional schematic diagram of a wall-mounted air conditioner according to an embodiment of this application with the panel removed and the air outlet valve in the open state;

[0036] Figure 4 yes Figure 3 Left view of the wall-mounted air conditioner shown;

[0037] Figure 5 It is a three-dimensional assembly diagram of the fresh air housing, purification components, drive unit, air outlet valve, and air inlet valve from one perspective;

[0038] Figure 6 This is a three-dimensional assembly diagram of the fresh air housing, purification components, drive unit, air outlet valve, and air inlet valve from another perspective;

[0039] Figure 7 It is an exploded view of the fresh air housing, purification components, drive unit, air outlet valve, and air inlet valve;

[0040] Figure 8 It is an assembly diagram of the drive unit, the air outlet valve, and the air inlet valve;

[0041] Figure 9 This is a schematic diagram showing the relative positions of the second gear and the air guide tube;

[0042] Figure 10 This is a schematic diagram of the second gear.

[0043] Figure label:

[0044] 10. Wall-mounted air conditioner, 1. Housing, 11. Housing air outlet, 12. Housing second air outlet, 13. Sealing plate, 14. Heat exchange air inlet, 15. Heat exchange air outlet, 2. Fresh air housing, 21. First housing, 22. Second housing, 221. Axial ventilation port, 23. Third housing, 231. First half housing, 232. Second half housing, 24. Fresh air inlet, 25. Fresh air second outlet, 26. Mounting port, 27. Fresh air fan, 3. Air outlet valve, 41. Air inlet valve, 42. Drive device, 5. Electric drive component, 52. Transmission mechanism, 52. First gear, 521. Second gear, 522. Gear section, 5221. Connecting section, 5222. Intermediate gear, 523. Rack, 524. Air guide tube, 6. Purification component, 7. Panel, 81. Air guide plate, 82. Detailed Implementation

[0045] The following description, in conjunction with the accompanying drawings, clearly and completely describes some embodiments of this application. Obviously, the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0046] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this application. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0047] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0048] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0049] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0050] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0051] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0052] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0053] Some embodiments of this application provide a wall-mounted air conditioner 10.

[0054] Typically, air conditioners are split-type air conditioners, which include 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 may include heat exchange fins to increase the contact area between 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] In some designs, the air conditioner may include a four-way valve connected to the refrigerant circuit. The four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner can perform a cooling mode or a 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 may include 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] The following is combined with Figures 1-10 A detailed description of the wall-mounted air conditioner 10 according to an embodiment of this application.

[0065] The wall-mounted air conditioner 10 of this application is an indoor unit. The wall-mounted air conditioner 10 is typically installed on a wall, for example, in the upper area of ​​an interior wall.

[0066] Reference Figures 1-4 As shown, the wall-mounted air conditioner 10 according to an embodiment of this application includes a housing 1, with an accommodating cavity formed inside the housing 1, and a housing air outlet 11 provided on the housing 1. The housing 1 can play a protective role and constitute the overall external structure of the wall-mounted air conditioner 10.

[0067] Typically, the casing 1 is a long, rectangular shell, with its length running horizontally along the wall. Figures 1-3 The left and right directions are indicated in the diagram. In actual products, in order to drain condensate, in some embodiments the casing 1 is mounted horizontally on the wall, forming a small angle with the horizontal plane.

[0068] Reference Figures 5-7 As shown, the wall-mounted air conditioner 10 also includes a fresh air housing 2, which is disposed within the accommodating cavity. A fresh air duct is formed within the fresh air housing 2. The fresh air housing 2 is provided with a fresh air inlet 24 and a fresh air outlet 25, both of which are connected to the fresh air duct. Outdoor air can enter the fresh air duct through the fresh air inlet 24, and the outdoor air in the fresh air duct can enter the room through the fresh air outlet 25 and the housing outlet 11. The housing outlet 11 provides space for the fresh air outlet 25 to discharge air.

[0069] The wall-mounted air conditioner 10 also includes a fresh air fan 3, which is installed inside the fresh air housing 2. The rotation of the fresh air fan 3 can allow outdoor air to enter the fresh air housing 2 from the fresh air inlet 24, and can allow the outdoor air entering the fresh air housing 2 to enter the room through the fresh air outlet 25 and the housing outlet 11.

[0070] In some embodiments, the wall-mounted air conditioner 10 further includes a first motor (not shown in the figure), which is disposed inside the fresh air housing 2 and connected to the fresh air fan 3. The first motor is used to drive the fresh air fan 3 to rotate. The first motor can be an external rotor motor or an internal rotor motor.

[0071] In some embodiments, the axes of the first motor and the fresh air fan 3 are both along the length of the housing 1.

[0072] Reference Figures 1-7 As shown, the wall-mounted air conditioner 10 also includes an air outlet valve 41, which is used to open or close the fresh air outlet 25. When the air outlet valve 41 opens the fresh air outlet 25, outdoor air in the fresh air duct can enter the room through the fresh air outlet 25; when the air outlet valve 41 closes the fresh air outlet 25, outdoor air in the fresh air duct cannot enter the room through the fresh air outlet 25.

[0073] Reference Figure 5 , Figures 7-8 As shown, the wall-mounted air conditioner 10 also includes a drive device 5, which includes an electric drive component 51 and a transmission mechanism 52. The electric drive component 51 is connected to the transmission mechanism 52, and the transmission mechanism 52 is connected to the air outlet valve 41. The electric drive component 51 is used to drive the air outlet valve 41 to move through the transmission mechanism 52, so that the air outlet valve 41 opens or closes the fresh air outlet 25.

[0074] In a specific embodiment, the electric drive component 51 can be a stepper motor. The output shaft of the stepper motor drives the transmission mechanism 52 to move. When the transmission mechanism 52 moves, it drives the air outlet valve 41 to move, thereby changing the relative position of the air outlet valve 41 and the fresh air outlet 25, so that the air outlet valve 41 opens or closes the fresh air outlet 25.

[0075] According to the wall-mounted air conditioner 10 of this application embodiment, an electric drive component 51 is provided to drive the transmission mechanism 52 to move, and when the transmission mechanism 52 moves, it drives the air outlet valve 41 to move, so that the adjustment process of the air outlet valve 41 is electric, the user does not need to manually adjust the air outlet valve 41, and the opening degree of the air outlet valve 41 is accurate.

[0076] In some embodiments of this application, reference is made to Figures 5-8 As shown, the transmission mechanism 52 is a multi-stage gear transmission mechanism, which is used to achieve intelligent control of the air outlet valve 41. The multi-stage gear transmission mechanism can change the output torque of the electric drive component 51 through multiple speed stages to obtain a suitable torque. The gear transmission method has a simple structure and reliable transmission.

[0077] Reference Figure 5 , Figures 7-8As shown, the transmission mechanism 52 includes a first gear 521, which is connected to an electric drive unit 51. The electric drive unit 51 drives the first gear 521 to rotate. Specifically, in Figures 7-8 In the example, the electric drive unit 51 has an output shaft, and the first gear 521 is mounted on the output shaft of the electric drive unit 51. When the output shaft of the electric drive unit 51 rotates, it drives the first gear 521 to rotate.

[0078] In some embodiments not shown in the figure, the transmission mechanism 52 further includes a mounting shaft, which is connected to the output shaft of the electric drive 51 via a coupling. The first gear 521 is mounted on the mounting shaft. When the output shaft rotates, it drives the mounting shaft to rotate synchronously, and when the mounting shaft rotates, it drives the first gear 521 to rotate synchronously.

[0079] The transmission mechanism 52 also includes a second gear 522, which is connected to the air outlet valve 41. When the second gear 522 rotates, it is suitable for driving the air outlet valve 41 to rotate.

[0080] The transmission mechanism 52 also includes at least one intermediate gear 523, which is used to transmit the power on the first gear 521 to the second gear 522.

[0081] In some embodiments not shown in the figure, there are multiple intermediate gears 523, which mesh sequentially to transmit the power from the first gear 521 to the second gear 522.

[0082] In some embodiments of this application, reference is made to Figures 7-8 As shown, there is one intermediate gear 523, which meshes with the first gear 521 and also with the second gear 522. The rotational speed of the first gear 521 is greater than that of the intermediate gear 523, and the rotational speed of the intermediate gear 523 is greater than that of the second gear 522. In other words, when there is only one intermediate gear 523, the transmission mechanism 52 is a two-stage gear reduction transmission mechanism. The first stage involves the transmission between the first gear 521 and the intermediate gear 523, and the second stage involves the transmission between the intermediate gear 523 and the second gear 522. The power transmission path is: output shaft of electric drive unit 51 → first gear 521 → intermediate gear 523 → second gear 522.

[0083] In some embodiments of this application, the reduction ratio between the first gear 521 and the intermediate gear 523 is 2.54:1, and the reduction ratio between the intermediate gear 523 and the second gear 522 is 2.51:1.

[0084] In some embodiments of this application, the transmission mechanism 52 is a composite reduction system with a total transmission ratio of 6.38:1. The two-stage reduction of the transmission mechanism 52 significantly increases the output torque of the drive device 5, amplifying the theoretical torque output by the electric drive component 51 by 6.38 times. This ensures that even under the drive of the low-power electric drive component 51, the electric drive component 51 can still overcome the air pressure resistance of the fresh air duct, thereby driving the air outlet valve 41 to rotate.

[0085] In some embodiments of this application, the air outlet valve 41 can achieve precise angle adjustment within the range of 0° to 50°. For example, when the air outlet valve 41 is in the position of closing the fresh air outlet 25, the angle of the air outlet valve 41 can be considered to be 0°. When the air outlet valve 41 is flipped to the position furthest from the fresh air outlet 25, the angle of the air outlet valve 41 can be considered to be at its maximum, for example, 50°. The air outlet valve 41 can also stay at any angle within the range of 0° to 50°, thereby achieving precise adjustment of the opening degree of the air outlet valve 41.

[0086] In some embodiments of this application, reference is made to Figures 7-9 As shown, the second gear 522 includes a gear section 5221, which is constructed as a sector gear. The sector gear satisfies the rotation stroke requirement of the air outlet valve 41 while avoiding the redundant structure of a full-circumference gear.

[0087] In some embodiments of this application, the wrap angle of the sector gear is 105°.

[0088] In some embodiments of this application, the wall-mounted air conditioner 10 also includes a Hall position sensor, and the electric drive unit 51 is a stepper motor. The Hall position sensor, in conjunction with the micro-step control technology of the stepper motor, can achieve an opening accuracy of ±0.5° for the air outlet valve 41.

[0089] Reference Figures 7-9 As shown, the second gear 522 also includes a connecting part 5222. One end of the connecting part 5222 is connected to the gear part 5221, and the other end of the connecting part 5222 is connected to the air outlet valve 41. The connecting part 5222 allows the air outlet valve 41 to be separated from the gear part 5221, preventing interference between them. Furthermore, when the gear part 5221 rotates, the connecting part 5222 can cause the air outlet valve 41 to rotate.

[0090] When the gear part 5221 rotates, it drives the connecting part 5222 to rotate. When the connecting part 5222 rotates, it drives the air outlet valve 41 to flip, so that the air outlet valve 41 opens or closes the fresh air outlet 25. The air outlet valve 41 electrically opens the fresh air outlet 25 by flipping outward and electrically closes the fresh air outlet 25 by flipping inward. This makes the operation of the air outlet valve 41 accurate, so that the opening degree of the air outlet valve 41 is accurate and adjustable, avoiding the inaccuracy of manually adjusting the valve opening.

[0091] In some embodiments of this application, reference is made to Figures 7-10 As shown, the connecting part 5222 includes a first section 52221 and a second section 52222. The first section 52221 is connected to the gear part 5221. One end of the second section 52222 is connected to the first section 52221, and the other end of the second section 52222 is connected to the air outlet valve 41. The angle between the first section 52221 and the second section 52222 is an obtuse angle. The second section 52222 bends towards the front and lower part of the wall-mounted air conditioner 10 relative to the first section 52221.

[0092] The angle between the first segment 52221 and the second segment 52222 is an obtuse angle, which causes the air outlet valve 41 to flip forward and downward when it opens the fresh air outlet 25, and to flip backward and upward when it closes the fresh air outlet 25.

[0093] For example, the angle between the first segment 52221 and the second segment 52222 can be 120°, 135°, 150°, etc.

[0094] In some embodiments of this application, reference is made to Figures 5-7 As shown, the fresh air housing 2 includes a first housing 21 and a second housing 22. The second housing 22 is detachably connected to the first housing 21, forming an air intake cavity between them. A fresh air inlet 24 communicates with the air intake cavity and is located on the first housing 21 and / or the second housing 22. When the fresh air inlet 24 is open, outdoor air can enter the air intake cavity through it. The separate design of the second housing 22 and the first housing 21 facilitates the installation and disassembly of components inside the air intake cavity.

[0095] The fresh air inlet 24 can be set only on the first housing 21, or only on the second housing 22, or it can be jointly enclosed by the first housing 21 and the second housing 22. For example, the first housing 21 and the second housing 22 can each form an open half-opening to be combined into the fresh air inlet 24, which facilitates processing or demolding and results in a low scrap rate.

[0096] The second housing 22 and the first housing 21 can be detachably connected by bolts, fasteners, clips, or other structures.

[0097] Reference Figures 5-7 As shown, the fresh air housing 2 also includes a third housing 23, which is detachably connected to the second housing 22. An air outlet cavity is formed between the third housing 23 and the second housing 22, and this air outlet cavity is connected to the air inlet cavity. A fresh air outlet 25 is located on the second housing 22 and / or the third housing 23, and is connected to the air outlet cavity. Outdoor air entering the air inlet cavity through the fresh air inlet 24 can enter the air outlet cavity. When the fresh air outlet 25 is opened, outdoor air in the air outlet cavity can be blown into the room through the fresh air outlet 25. The separate design of the third housing 23 and the second housing 22 facilitates the installation and disassembly of components inside the air outlet cavity.

[0098] The fresh air outlet 25 can be set only on the second housing 22, or only on the third housing 23, or it can be jointly enclosed by the second housing 22 and the third housing 23. For example, the second housing 22 and the third housing 23 can each form an open half-opening to be combined into the fresh air outlet 25, which facilitates processing or demolding and results in a low scrap rate.

[0099] The third housing 23 and the second housing 22 can be detachably connected through bolts, fasteners, clips, or other structures.

[0100] Reference Figures 5-7 As shown, the wall-mounted air conditioner 10 also includes an air guide duct 6, which is installed at the fresh air outlet 25. The fresh air outlet 25 is connected to the casing outlet 11 through the air guide duct 6. The air guide duct 6 can guide the outdoor air blown out of the fresh air outlet 25 to the casing outlet 11, and then blow it into the room through the casing outlet 11.

[0101] In the direction of airflow, the flow area of ​​the air guide duct 6 gradually increases. As a result, the air guide duct 6 can expand the outdoor air blown out of the fresh air outlet 25, thereby reducing the wind speed reaching the air outlet 11 of the casing, so as to avoid discomfort to the user when the wind speed is too high.

[0102] In some embodiments of this application, the air guide duct 6 is constructed in a cylindrical shape, such as a conical tube or a square conical tube, with the small diameter end of the air guide duct 6 facing the fresh air outlet 25 and the large diameter end of the air guide duct 6 facing the air outlet 11 of the housing.

[0103] The air guide duct 6 is positioned between the air outlet valve 41 and the gear part 5221. The air guide duct 6 has a clearance hole for the connecting part 5222 to pass through. This clearance hole prevents interference between the connecting part 5222 and the air guide duct 6 when the second gear 522 rotates. Specifically, when the second gear 522 rotates, the connecting part 5222 does not contact the air guide duct 6 to prevent abnormal noise from contact and to prevent the air guide duct 6 from obstructing the rotation of the connecting part 5222.

[0104] In some embodiments of this application, reference is made to Figure 3 , Figures 5-7 As shown, the first housing 21, the second housing 22, and the third housing 23 are arranged sequentially along the length of the housing 1 to fully utilize the space along the length of the housing 1 and avoid making the wall-mounted air conditioner 10 too large in the vertical direction. The electric drive component 51 is installed on the first housing 21 and / or the second housing 22 to achieve the installation and fixation of the electric drive component 51. Specifically, the electric drive component 51 can be installed only on the first housing 21, only on the second housing 22, or simultaneously on both the first housing 21 and the second housing 22.

[0105] Reference Figures 6-7 As shown, the third housing 23 includes a first half-shell 231 and a second half-shell 232. The first half-shell 231 is detachably connected to the second half-shell 232, the first half-shell 231 is detachably connected to the second housing 22, and the second half-shell 232 is detachably connected to the second housing 22.

[0106] The first half-shell 231 and the second half-shell 232 can be detachably connected by bolts, fasteners, snaps, or other structures. The first half-shell 231 and the second shell 22 can be detachably connected by bolts, fasteners, snaps, or other structures. The second half-shell 232 and the second shell 22 can be detachably connected by bolts, fasteners, snaps, or other structures.

[0107] Reference Figure 2 As shown, the fresh air housing 2 is also provided with a second fresh air outlet 26, and the housing 1 is provided with a second housing outlet 12. The second fresh air outlet 26 and the second housing outlet 12 are connected. When the fresh air fan 3 rotates, outdoor air can enter the fresh air housing 2 from the fresh air inlet 24, and outdoor air entering the fresh air housing 2 can enter the room through the fresh air outlet 25 and the housing outlet 11, the second fresh air outlet 26 and the second housing outlet 12.

[0108] The second fresh air outlet 26 can be set only on the second housing 22, or only on the third housing 23, or it can be jointly enclosed by the second housing 22 and the third housing 23. For example, the second housing 22 and the third housing 23 can each form an open half-opening to be combined into the second fresh air outlet 26, which facilitates processing or demolding and results in a low scrap rate.

[0109] Reference Figure 2 As shown, the second fresh air outlet 26 and the second air outlet 12 of the casing can be set on the top of the wall-mounted air conditioner 10 to achieve upward airflow.

[0110] In some embodiments not shown in the figure, the second fresh air outlet 26 and the second air outlet 12 of the casing can also be located at the front of the wall-mounted air conditioner 10 to achieve forward airflow.

[0111] In some embodiments of this application, reference is made to Figure 1 , Figure 3 As shown, the housing 1 includes a sealing plate 13, which has an annular structure. The housing air outlet 11 is surrounded by the sealing plate 13, and the air outlet end of the air guide duct 6 abuts against the inner end of the sealing plate 13. The sealing plate 13 is used to seal the gap between the air guide duct 6 and the housing 1. Thus, the air guide duct 6 can better and more effectively guide the outdoor air blown out from the fresh air outlet 25 to the housing air outlet 11, preventing the outdoor air blown out from the fresh air outlet 25 from leaking into the housing 1.

[0112] In some embodiments of this application, when the air outlet valve 41 abuts against the sealing plate 13, the fresh air outlet 25 is closed, and the appearance of the wall-mounted air conditioner 10 is more aesthetically pleasing when the air outlet valve 41 abuts against the sealing plate 13; when the air outlet valve 41 separates from the sealing plate 13, the fresh air outlet 25 is opened, and fresh air is blown out from the space between the air outlet valve 41 and the sealing plate 13.

[0113] In some embodiments of this application, reference is made to Figure 3 , Figures 5-7 As shown, the wall-mounted air conditioner 10 also includes a purification component 7, which is installed in the air inlet cavity. A fresh air fan 3 is installed in the air outlet cavity. The rotation of the fresh air fan 3 allows outdoor air to enter the fresh air housing 2 through the fresh air inlet 24, and also allows the outdoor air entering the fresh air housing 2 to pass through the purification component 7 before entering the room through the fresh air outlet 25. The purification component 7 is used to purify the fresh air blown into the room, improving the cleanliness of the indoor air.

[0114] The purification component 7 is located at the axial air intake end of the fresh air fan 3. The fresh air flow can blow almost vertically over the purification component 7, which can further reduce the fresh air intake consumption and thus increase the fresh air volume.

[0115] In some embodiments of this application, reference is made to Figure 7 As shown, the fresh air housing 2 is also provided with an installation port 27, and the purification component 7 can be detachably installed in the installation port 27. This facilitates the removal of the purification component 7 when it is damaged or saturated, making it convenient for maintenance or replacement.

[0116] For example, such as Figure 7 As shown, the mounting port 27 is formed between the first housing 21 and the second housing 22, and the purification component 7 can be detachably assembled into the fresh air cavity through the mounting port 27. This allows the mounting port 27 to be set to a larger size, facilitating the installation of larger purification components 7. When the mounting port 27 is larger, it is formed by the enclosure between the first housing 21 and the second housing 22, with open semi-openings formed on both the first housing 21 and the second housing 22, facilitating processing or demolding and resulting in a low scrap rate.

[0117] For example, in the front-rear direction of the wall-mounted air conditioner 10, the mounting port 27 is located on the front side of the wall-mounted air conditioner 10, so that the purification component 7 can be disassembled without being interfered with by the duct connected to the fresh air intake, thus facilitating disassembly. For example, refer to Figures 1-3 , Figure 7 As shown, the front side of the housing 1 is provided with an openable panel 81. When the panel 81 is opened or rotated upward, the mounting port 27 can be exposed, which facilitates the disassembly of the purification component 7.

[0118] It is also possible that in some designs, the installation port 27 is located at the bottom of the wall-mounted air conditioner 10.

[0119] In some embodiments of this application, reference is made to Figure 7 As shown, the second housing 22 is provided with an axial ventilation port 221, and the purification component 7 includes a filter screen, which covers the axial ventilation port 221. The filter screen covers the entire air intake end of the fresh air fan 3, providing a large coverage area and excellent filtration effect. The filter screen helps ensure sufficient contact area with the flowing air, and is lightweight with low noise. For example, the filter screen is made of HEPA mesh, thus having strong adsorption capacity and a strong filtration effect for dust in the air.

[0120] For example, the filter is plate-shaped, so the filter is thin overall and will not take up too much space when placed after the fresh air housing.

[0121] For example, the filter screen is square, which makes it easy to position and install the filter screen.

[0122] In some embodiments, the filter screen is a square mesh, with its side length greater than the diameter of the axial vent 221. 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 221, all fresh air entering the axial vent 221 can flow through the filter screen, resulting in high filtration cleanliness.

[0123] In some embodiments of this application, the wall-mounted air conditioner 10 further includes an indoor heat exchanger (not shown in the figure), which is disposed within a housing cavity. As described above, the indoor heat exchanger is a loop in the refrigerant circuit, and refrigerant flows inside the indoor heat exchanger to cool or heat the air flowing from the surface of the indoor heat exchanger. In the wall-mounted air conditioner 10, the indoor heat exchanger typically extends along the length of the casing 1.

[0124] 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 direction.

[0125] When the indoor heat exchanger is in cooling mode, causing condensation to form in the fresh air, the condensation can remain on the purification element 7 as the air flows through it, further preventing water from being blown out when the fresh air outlet 25 and the second fresh air outlet 26 are vented.

[0126] The wall-mounted air conditioner 10 also includes a base and a heat exchange fan, with the base located within the housing cavity. The base serves as the internal mounting support structure, allowing the indoor heat exchanger and the fresh air casing 2 to be mounted on it. For example, a volute-like air duct is formed on the base, and the heat exchange fan is positioned within this duct. In the wall-mounted air conditioner 10, the heat exchange fan typically extends along the length of the casing 1. After indoor air enters the casing 1, its flow is guided by the volute-like air duct, ensuring minimal resistance as the indoor air flows through the indoor heat exchanger.

[0127] In some embodiments, the heat exchange fan is, for example, a cross-flow fan, which has low noise and large air volume, and the air velocity of the cross-flow fan is more evenly distributed along the axial direction of the fan, which is beneficial to increasing the air delivery distance and air delivery range. Moreover, when a cross-flow fan is used and is arranged along the length of the casing 1, it is beneficial for the driven airflow to flow through the entire indoor heat exchanger, ensuring the balance of heat exchange efficiency of each part of the indoor heat exchanger.

[0128] In some embodiments of this application, the wall-mounted air conditioner 10 further includes a second motor (not shown in the figure), which is disposed within the accommodating cavity. The second motor is used to drive a heat exchange fan to rotate, so that air exchanges heat with the indoor space inside the air conditioner.

[0129] In some embodiments of this application, the second motor is located at one end along the length of the heat exchange fan. This facilitates the installation and maintenance of the second motor, and the wall-mounted air conditioner 10 does not need to become excessively tall or thick due to the placement of the second motor. Here, the height direction of the wall-mounted air conditioner 10 is consistent with the vertical direction, and the thickness direction of the wall-mounted air conditioner 10 is consistent with the front-to-back direction.

[0130] The casing 1 has a heat exchange air inlet 14 and a heat exchange air outlet 15. By providing the heat exchange air outlet 14 and heat exchange air outlet 15 on the casing 1, indoor air can be drawn into the casing 1 through the heat exchange air inlet 14 when the heat exchange fan is running. After heat exchange between the indoor air and the indoor heat exchanger, the heat-exchanged air is delivered back into the room through the heat exchange air outlet 15. This allows for the regulation of the indoor ambient temperature. The indoor heat exchanger can function as an evaporator, providing cooling airflow to the indoor space through the heat exchange air outlet 15, or it can function as a condenser, providing heating airflow to the indoor space through the heat exchange air outlet 15.

[0131] In some embodiments of this application, reference is made to Figures 1-3 As shown, the wall-mounted air conditioner 10 also includes an air guide plate 82, which is disposed at the heat exchange air outlet 15 and is pivotally connected to the casing 1 or the base. When the air guide plate 82 rotates, it can adjust the air outlet direction at the heat exchange air outlet 15 to meet different user air blowing needs.

[0132] In some embodiments, refer to Figures 1-3 As shown, in the height direction of the wall-mounted air conditioner 10, the heat exchange air inlet 14 is located above the heat exchange air outlet 15, so that air can be drawn in from the top and discharged from the bottom.

[0133] For example, the height direction of the wall-mounted air conditioner 10 is the vertical direction.

[0134] Understandably, wall-mounted air conditioners 10 are typically installed on walls, and to avoid interfering with daily life, they are usually mounted high up. By designing the wall-mounted air conditioner 10 to blow heat exchange air from below, the blown heat exchange air is less likely to be obstructed by the ceiling or floor. This results in less resistance and energy loss during the airflow process, a wider air delivery range, and allows the heat exchange air to quickly circulate throughout the entire indoor space, improving heat exchange efficiency.

[0135] Reference Figures 1-3 As shown, the heat exchange air inlet 14 is located above the heat exchange air outlet 15. The heat exchange air inlet 14 can take in air from above, which can avoid taking in air from the heat exchange air outlet 15 and prevent the heat exchange air from being blown out of the heat exchange air outlet 15 and directly being sucked into the heat exchange air inlet 14, thus reducing the process of heat exchange air idling without participating in the indoor heat exchange.

[0136] In some embodiments, the heat exchange air inlet 14 is located on the top of the casing 1, i.e., in an area that is not visible to the user. Hiding the heat exchange air inlet 14 can improve the aesthetic appearance of the wall-mounted air conditioner 10.

[0137] In some embodiments, the heat exchange outlet 15 is located directly in front of the casing 1, that is, the heat exchange outlet 15 blows air towards the front of the wall-mounted air conditioner 10.

[0138] Understandably, the side of the wall-mounted air conditioner 10 that is connected to the wall is usually called the back or rear side, while the side opposite to the rear side is called the front side. Therefore, when the heat exchange outlet 15 is located directly in front of the casing 1, the air outlet is away from the wall, the air resistance is small, and the air delivery range is wide.

[0139] In some embodiments, the heat exchange air outlet 15 is located on the front side of the housing 1 and near the bottom, for example, the heat exchange air outlet 15 is located at the lower front corner of the housing 1. In this case, the heat exchange air blown out of the heat exchange air outlet 15 flows forward and downward at the same time, so that after being delivered a certain distance, the heat exchange air can sink and fall onto people or objects on the ground, so that people or objects on the ground can be in a suitable indoor environment as soon as possible.

[0140] In some embodiments of this application, the first housing 21 is disposed on the side of the second housing 22 away from the indoor heat exchanger, and the third housing 23 is disposed on the side of the second housing 22 closer to the indoor heat exchanger. The first housing 21, the second housing 22, and the third housing 23 are arranged in a reasonable manner, which can make full use of the space in the left and right direction of the wall-mounted air conditioner 10.

[0141] In some embodiments of this application, reference is made to Figures 5-8 As shown, the wall-mounted air conditioner 10 also includes an air inlet valve 42, which is used to open or close the fresh air inlet 24. The air outlet valve 41 opens the fresh air inlet 24, the air inlet valve 42 opens the fresh air outlet 25, and the fresh air fan 3 rotates to allow outdoor air to enter the fresh air housing 2 from the fresh air inlet 24, and to allow outdoor air entering the fresh air housing 2 to enter the room through the fresh air outlet 25 and the housing outlet 11.

[0142] The transmission mechanism 52 also includes a rack 524, which meshes with the first gear 521. The rack 524 is mounted on the air inlet valve 42. When the first gear 521 drives the rack 524 to move, the rack 524 drives the air inlet valve 42 to move, thereby opening or closing the fresh air inlet 24. The air inlet valve 42 and the air outlet valve 41 share the same electric drive component, which saves on the number of electric drive components and reduces the overall cost of the wall-mounted air conditioner 10.

[0143] In some embodiments of this application, reference is made to Figures 1-3 As shown, the air outlet 11 is located at the bottom of the housing 1 to guide the outdoor air blown out from the fresh air outlet 25 forward and downward into the room. This visualizes the fresh air function, giving users a direct visual experience of the fresh air supply.

[0144] Since the heat exchange air inlet 14 is located above the heat exchange air outlet 15, and the heat exchange air outlet 15 is relatively low on the casing 1, the casing air outlet 11 blows fresh air from below, making the air outlet area of ​​the casing air outlet 11 close to or even partially overlap with the air outlet area of ​​the heat exchange air outlet 15. 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 airflow.

[0145] Furthermore, the air outlet 11 of the casing is in the opposite direction to the air inlet 14 of the heat exchanger, so fresh air will not be drawn into the heat exchanger 14, reducing the proportion of fresh air intake at the heat exchanger 14, resulting in a larger total air volume of the wall-mounted air conditioner 10 and improving the overall circulation efficiency of indoor air.

[0146] Furthermore, the air outlet 11 is located below the wall-mounted air conditioner 10, close to the people's activity space, making it convenient for people to observe the fresh air supply. This achieves a visual effect of fresh air supply, which helps to improve people's experience.

[0147] For example, when the air outlet 11 of the casing is located below the wall-mounted air conditioner 10, it is usually located on the front side below the wall-mounted air conditioner 10. This allows the fresh air to flow forward and downward, ensuring that the fresh air can reach the ground and also that the fresh air can reach a sufficiently long distance.

[0148] It should be noted that any one of the technical solutions disclosed in this application can solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose to a certain extent; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose; some technical disclosures can be selected and combined into an overall solution, while adopting related technologies and deteriorating solutions, but the deterioration trend can be compensated by the means of this technical disclosure, and the overall solution can solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose to a certain extent; each technical disclosure combined into a complete technical solution constitutes an organic and indivisible overall solution, which solves the technical problems and achieves a certain disclosure purpose as a whole.

[0149] Any technical disclosure in this application, as well as the recombination of multiple technical disclosures, can form a complete technical solution and solve one or more of the aforementioned technical problems, thereby achieving the purpose of disclosure. All of these fall under the content of this application and are directly and unambiguously determined based on the content of this application.

[0150] Those skilled in the art will understand that the scope of this application is not limited to the embodiments described above, and that modifications and substitutions can be made to certain elements of the embodiments without departing from the spirit of this application. The scope of this application is limited by the appended claims.

Claims

1. A wall-mounted air conditioner (10), comprising: The housing (1) has an internal cavity and an air outlet (11) on its surface. Fresh air housing (2), the fresh air housing (2) is disposed in the accommodating cavity, a fresh air duct is formed inside the fresh air housing (2), the fresh air housing (2) is provided with a fresh air inlet (24) and a fresh air outlet (25), the fresh air inlet (24) and the fresh air outlet (25) are both connected to the fresh air duct; Fresh air fan (3), the fresh air fan (3) is installed inside the fresh air housing (2), the fresh air fan (3) can rotate to allow outdoor air to enter the fresh air housing (2) from the fresh air inlet (24), and can allow outdoor air entering the fresh air housing (2) to enter the room through the fresh air outlet (25) and the housing outlet (11); An air outlet valve (41) is used to open or close the fresh air outlet (25); Its characteristic is that it further includes: An electric drive unit (51) and a transmission mechanism (52) are provided, wherein the electric drive unit (51) is connected to the transmission mechanism (52) and the transmission mechanism (52) is connected to the air outlet valve (41). The electric drive unit (51) is used to drive the air outlet valve (41) to move through the transmission mechanism (52) so that the air outlet valve (41) opens or closes the fresh air outlet (25).

2. The wall-mounted air conditioner (10) according to claim 1, characterized in that, The transmission mechanism (52) is a multi-stage gear transmission mechanism and includes: A first gear (521) is connected to the electric drive unit (51), and the electric drive unit (51) is used to drive the first gear (521) to rotate. A second gear (522) is connected to the air outlet valve (41), and when the second gear (522) rotates, it is adapted to drive the air outlet valve (41) to rotate; and At least one intermediate gear (523) is provided for transmitting power from the first gear (521) to the second gear (522).

3. The wall-mounted air conditioner (10) according to claim 2, characterized in that, There is one intermediate gear (523), which meshes with the first gear (521) and also meshes with the second gear (522). The rotational speed of the first gear (521) is greater than that of the intermediate gear (523), and the rotational speed of the intermediate gear (523) is greater than that of the second gear (522).

4. The wall-mounted air conditioner (10) according to claim 2, characterized in that, The second gear (522) includes: Gear section (5221), wherein the gear section (5221) is constructed as a sector gear; A connecting part (5222) is provided, one end of which is connected to the gear part (5221), and the other end of which is connected to the air outlet valve (41). When the gear part (5221) rotates, it drives the connecting part (5222) to rotate. When the connecting part (5222) rotates, it drives the air outlet valve (41) to flip, so that the air outlet valve (41) opens or closes the fresh air outlet (25).

5. The wall-mounted air conditioner (10) according to claim 4, characterized in that, The connecting part (5222) includes a first section (52221) and a second section (52222). The first section (52221) is connected to the gear part (5221). One end of the second section (52222) is connected to the first section (52221), and the other end of the second section (52222) is connected to the air outlet valve (41). The angle between the first section (52221) and the second section (52222) is an obtuse angle. The second section (52222) bends towards the front and lower part of the wall-mounted air conditioner (10) relative to the first section (52221).

6. The wall-mounted air conditioner (10) according to claim 4, characterized in that, The fresh air housing (2) includes: First shell (21); The second housing (22) is detachably connected to the first housing (21), and an air inlet cavity is formed between the second housing (22) and the first housing (21). The fresh air inlet (24) is connected to the air inlet cavity and is disposed on the first housing (21) and / or the second housing (22). A third housing (23) is detachably connected to the second housing (22). An air outlet cavity is formed between the third housing (23) and the second housing (22). The air outlet cavity is connected to the air inlet cavity. A fresh air outlet (25) is provided on the second housing (22) and / or the third housing (23). The fresh air outlet (25) is connected to the air outlet cavity. The wall-mounted air conditioner (10) also includes: The air guide tube (6) is installed at the fresh air outlet (25). The fresh air outlet (25) is connected to the air outlet (11) of the housing through the air guide tube (6). In the air outlet direction, the flow area of ​​the air guide tube (6) gradually increases. The air guide tube (6) is located between the air outlet valve (41) and the gear part (5221), and the air guide tube (6) has a clearance hole for the connecting part (5222) to pass through.

7. The wall-mounted air conditioner (10) according to claim 6, characterized in that, The first housing (21), the second housing (22) and the third housing (23) are arranged sequentially along the length of the housing (1), and the electric drive unit (51) is installed on the first housing (21) and / or the second housing (22).

8. The wall-mounted air conditioner (10) according to claim 6, characterized in that, The housing (1) includes a sealing plate (13), which has an annular structure. The housing air outlet (11) is surrounded by the sealing plate (13). The air outlet of the air guide tube (6) abuts against the inner end of the sealing plate (13). The sealing plate (13) is used to seal the gap between the air guide tube (6) and the housing (1). When the air outlet valve (41) abuts against the sealing plate (13), the fresh air outlet (25) is closed; when the air outlet valve (41) separates from the sealing plate (13), the fresh air outlet (25) is opened.

9. The wall-mounted air conditioner (10) according to claim 2, characterized in that, The wall-mounted air conditioner (10) also includes an air inlet valve (42), which is used to open or close the fresh air inlet (24). The transmission mechanism (52) also includes a rack (524), which meshes with the first gear (521). The rack (524) is mounted on the air inlet valve (42). When the first gear (521) drives the rack (524) to move, the rack (524) drives the air inlet valve (42) to move, so that the air inlet valve (42) opens or closes the fresh air inlet (24).

10. The wall-mounted air conditioner (10) according to claim 1, characterized in that, The air outlet (11) of the housing is located below the housing (1) to guide the outdoor air blown out from the fresh air outlet (25) to flow forward and downward into the room.

Images