Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a main body, a main body comprises a machine shell, an indoor heat exchanger, a base, a heat exchange fan and a first motor connected with the heat exchange fan. The wall-mounted air conditioner further comprises a second motor, a fresh air fan, an exhaust fan, a fresh air volute and an exhaust volute, and the first motor and the second motor are located at the two ends of the main body in the length direction. The second motor is connected with the fresh air fan and the exhaust fan so as to rotate synchronously. The fresh air fan and the exhaust fan are both centrifugal fans with axial air inlet and radial air outlet, the fresh air fan is located on the side, away from the first motor, of the heat exchange fan, and the exhaust fan is located on the side, facing the second motor, of the fresh air fan. The exhaust volute comprises an air guide ring, side edge recesses are formed in exhaust blades of the exhaust fan, and the end of the air guide ring is located in the side edge recesses. According to the wall-mounted air conditioner, on the premise that two-way ventilation is achieved, the air guide ring is used for guiding air, and meanwhile the length of the whole air conditioner is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and particularly to a wall-mounted air conditioner. Background Art

[0002] At present, most wall-mounted air conditioners are limited by volume and weight, and the functions that can be achieved are relatively limited. Usually, they can only cool or heat the indoor air. After the user turns on the air conditioner for a long time, if they feel that the indoor air is dirty and stuffy, the general operation is to open the window for ventilation, which requires manual opening and closing of the window. This is not only troublesome to operate, but also the indoor cold air or warm air will quickly escape from the window during the window-opening period, affecting people's comfort.

[0003] In the existing technical solutions, there have appeared some fresh air air conditioners. The fresh air module inhales fresh air from the outside, and the exhaust module discharges the indoor air. Due to the unreasonable structural design, the fresh air blown into the room by the fresh air module is still dirty, so there is still room for improvement. If an exhaust module is added, the whole machine is too long, posing a use risk. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a wall-mounted air conditioner, which can reduce the overall length of the whole machine while realizing two-way ventilation of the room.

[0005] The wall-mounted air conditioner according to the embodiment of the utility model includes: a main body. The main body includes: a casing, an accommodation cavity is formed inside the casing, a heat exchange air inlet and a heat exchange air outlet are formed on the casing, and in the height direction of the main body, the heat exchange air inlet is located above the heat exchange air outlet; an indoor heat exchanger, which is arranged in the accommodation cavity; a base, which is arranged in the accommodation cavity and has a scroll tongue air duct formed thereon; a heat exchange fan, which is arranged in the scroll tongue air duct and is located on the side of the indoor heat exchanger away from the heat exchange air inlet; a first motor, which is arranged in the accommodation cavity and is located at one end in the length direction of the main body, and is used to drive the heat exchange fan to rotate so that air can perform heat exchange between the inside of the air conditioner and the indoor space.

[0006] The wall-mounted air conditioner further includes: a second motor, which is arranged in the accommodation cavity and is located at the other end in the length direction of the main body; a fresh air fan, the fresh air fan is a centrifugal fan with axial air inlet and radial air outlet, and the fresh air fan is located on the side of the heat exchange fan away from the first motor; an exhaust fan, the exhaust fan is a centrifugal fan with axial air inlet and radial air outlet, and in the length direction of the main body, the exhaust fan is located on the side of the fresh air fan facing the second motor. Wherein, the second motor drives the fresh air fan and the exhaust fan to rotate synchronously in the working state.

[0007] The wall-mounted air conditioner further includes: a fresh air volute. A fresh air duct is formed inside the fresh air volute. The fresh air fan is installed inside the fresh air volute. A fresh air inlet and a fresh air outlet are formed on the fresh air volute. When the fresh air fan rotates, outdoor air can enter the fresh air volute from the fresh air inlet, and the outdoor air entering the fresh air volute can enter the room from the fresh air outlet.

[0008] The wall-mounted air conditioner further includes: an exhaust volute, which is located on the side of the fresh air volute facing the second motor. An exhaust duct is formed inside the exhaust volute. The exhaust fan is installed inside the exhaust volute. An exhaust inlet and an exhaust outlet are formed on the exhaust volute. When the exhaust fan rotates, indoor air can enter the exhaust volute from the exhaust inlet, and the indoor air entering the exhaust volute can be discharged to the outside from the exhaust outlet.

[0009] Wherein, the exhaust volute includes a wind guiding ring, and the area surrounded by the wind guiding ring forms the exhaust inlet. The exhaust fan includes: an exhaust wheel disc and exhaust blades. The exhaust wheel disc is connected to the second motor. The exhaust blades are connected to the side of the exhaust wheel disc away from the heat exchange fan. The exhaust blades are multiple and arranged circumferentially. The edge of the exhaust blade away from the exhaust wheel disc is the blade side edge, and at least part of the blade side edge is a tapered section. In the direction radially inward of the exhaust fan, the distance between the tapered section and the exhaust wheel disc gradually decreases, and all the exhaust blades form a side edge depression at the tapered section. The end of the wind guiding ring is located inside the side edge depression.

[0010] The wall-mounted air conditioner according to the embodiment of the present invention can improve the cleanliness of the inhaled fresh air while realizing two-way ventilation of the room at the same time.

[0011] Setting the fresh air fan on the side of the exhaust fan facing the indoor heat exchanger can reduce the loss of cold or heat in the room and improve the comfort when the fresh air is blown into the room. Specifically, the fresh air volute is close to the indoor heat exchanger. The fresh air inhaled 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. The exhaust volute is far from the indoor heat exchanger, so the cold or heat absorbed from the indoor heat exchanger after absorbing indoor air is less, and the loss of cold or heat discharged to the outside is less.

[0012] The fresh air fan is arranged on the side of the exhaust fan facing the indoor heat exchanger. When the indoor heat exchanger is cooling, it can also reduce the entry of condensed water into the air duct, reducing the risk of water accumulation and bacteria growth in the exhaust air duct and the fresh air duct, and reducing the risk of motor damage caused by condensed water entering the second motor. The exhaust fan is located on the side of the fresh air fan away from the indoor heat exchanger. For the exhaust fan that needs to intake air from the room, the intake air energy consumption it requires is also relatively low.

[0013] The overall wall-mounted air conditioner is still a thin and light model. Hanging on the wall is not only beautiful, but also has a controllable weight and is safe to use.

[0014] The setting of the air guide ring can increase the exhaust air intake volume without increasing the axial thickness dimension of the exhaust air volute, thus not increasing the overall length.

[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] Figure 1 Is a perspective view of the main body of the wall-mounted air conditioner in some embodiments (part of the casing is hidden in the figure);

[0017] Figure 2 Is a front view of the main body of the wall-mounted air conditioner in some other embodiments (part of the casing is hidden in the figure);

[0018] Figure 3 Is a perspective view of the inside of the main body in one direction in some embodiments;

[0019] Figure 4 Is a perspective view of the inside of the main body in another direction in some embodiments;

[0020] Figure 5 Is a perspective view of the two-way ventilation component in one direction in some embodiments;

[0021] Figure 6 Is a perspective view of the two-way ventilation component in another direction in some embodiments;

[0022] Figure 7 Is a side view of the two-way ventilation component in some embodiments;

[0023] Figure 8 For Figure 7 The sectional view taken along the A-A direction in;

[0024] Figure 9 Is an exploded view of the second motor in some embodiments;

[0025] Figure 10 Is a sectional view of the second motor in some embodiments;

[0026] Figure 11 Cross-sectional view of the exhaust fan in some embodiments;

[0027] Figure 12 Front view of the fresh air fan in some embodiments;

[0028] Figure 13 Side view of the fresh air fan in some embodiments;

[0029] Figure 14 Exploded view of the two-way ventilation component (some parts hidden) in one direction in some embodiments;

[0030] Figure 15 Exploded view of the two-way ventilation component in another direction in some embodiments;

[0031] Figure 16 Stereogram of the two-way ventilation component in some other embodiments;

[0032] Figure 17 Schematic diagram of the assembly relationship among the exhaust volute, the fixing bracket and the exhaust fan in some embodiments;

[0033] Figure 18 Stereogram of the base in some embodiments;

[0034] Figure 19 Front view of the main body of the wall-mounted air conditioner (some casings hidden in the figure) in some other embodiments;

[0035] Figure 20 Stereogram of the casing in the rear view direction in some embodiments.

[0036] Reference numerals:

[0037] Wall-mounted air conditioner 10000, main body 1000,

[0038] Casing 1, accommodation cavity V1, first chamber V11, second chamber V12,

[0039] Heat exchange air inlet 101, heat exchange air outlet 102, casing air inlet 103, first connecting air duct V04, pipe avoidance opening 104, casing air outlet 105,

[0040] Indoor heat exchanger 2,

[0041] Base 3, volute tongue air duct V03, end plate 31, positioning notch 311, first seat 301, second seat 302, mating port 3021,

[0042] Heat exchange fan 41, first motor 42,

[0043] Second motor 5, stator part 51, rotor part 52, motor housing 53, output shaft 532,

[0044] Fresh air fan 6, fresh air wheel disc 61, wheel disc hole 612, fresh air blades 62, first fresh air blade 621, second fresh air blade 622,

[0045] Exhaust fan 7, receiving groove V07, exhaust wheel disc 71, exhaust blades 72, blade side edge 721, straight section 7211, tapered section 7212, side edge depression 73, protruding part 74,

[0046] Fresh air volute 8, fresh air duct V01, volute cavity V011, fresh air cavity V012, cavity V0121, fresh air inlet 801, fresh air outlet 802, installation opening 803, purification air inlet 804, fresh air diffuser section 805, first hanging ear 806, second hanging ear 807,

[0047] First volute 81, first volute end plate 811, first volute enclosing plate 812, recessed part 813, perforated part 814,

[0048] Second volute 82, second volute half body 821, axial ventilation opening 8211, fan cover 822, positioning convex boss 8221, avoidance notch 82211, first positioning surface F1, second positioning surface F2,

[0049] Exhaust volute 9, exhaust duct V02, exhaust air inlet 901, exhaust air outlet 902, indoor exhaust air outlet 903, exhaust air diffuser section 905, second volute enclosing plate 906, air guide ring 91,

[0050] Purification component 11, filter net 111, first switching valve 12, electric control box 13, fresh air inlet pipe 141, exhaust air outlet pipe 142, second switching valve 15, air guide grille 16, fixing bracket 17, bracket end plate 171, bracket enclosing plate 172, wire passing hole 173, installation cavity 174, insulating sleeve 18, expansion pipe 19, bearing seat 20. Specific embodiments

[0051] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where 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 the present utility model and should not be construed as a limitation of the present utility model. In the description of the present utility model, it should be understood that the terms "center", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0052] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] A wall-mounted air conditioner 10000 proposed by the present utility model is an indoor unit. The wall-mounted air conditioner 10000 is usually installed on a wall, for example, it can be installed in the upper area of an indoor wall.

[0054] The wall-mounted air conditioner 10000 according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0055] The wall-mounted air conditioner 10000 according to an embodiment of the present utility model, as Figure 1 and Figure 2 shown, includes: a main body 1000.

[0056] The main body 1000 includes: a housing 1. As Figure 20 shown, an accommodation cavity V1 is formed inside the housing 1, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the housing 1. The housing 1 can play a protective role and constitute the overall external structure of the wall-mounted air conditioner 10000.

[0057] Referring to Figure 3and Figure 4 The main body 1000 further includes: an indoor heat exchanger 2 disposed in the accommodation cavity V1.

[0058] Referring to Figure 3 and Figure 4 The main body 1000 further includes: a base 3 disposed in the accommodation cavity V1. The base 3 is an installation support structure inside the main body 1000, and the indoor heat exchanger 2 can be installed on the base 3. Specifically, a volute tongue air duct V03 is formed on the base 3. After the indoor air enters the casing 1, the flow direction is guided through the volute tongue air duct V03, ensuring that the resistance suffered by the indoor air when flowing through the indoor heat exchanger 2 is relatively small.

[0059] Referring to Figure 4 The main body 1000 further includes: a heat exchange fan 41 disposed in the volute tongue air duct V03. In the solution of the present application, the heat exchange fan 41 can be selected as a cross-flow fan, which has low noise and a large air volume, and the air outlet wind speed of the cross-flow fan is relatively uniform along the axial direction of the cross-flow fan, which is beneficial to increasing the air supply distance and air supply range. Moreover, by using a cross-flow fan and arranging the cross-flow fan along the length direction of the main body 1000, it is beneficial to drive the air flow to flow through the entire indoor heat exchanger 2, ensuring the balance of the heat exchange efficiency at each position of the indoor heat exchanger 2.

[0060] Referring to Figure 4 The main body 1000 further includes: a first motor 42 disposed in the accommodation cavity V1. The first motor 42 is used to drive the heat exchange fan 41 to rotate, so that heat exchange between the air inside the air conditioner and the indoor space can be carried out.

[0061] By providing a heat exchange air outlet 102 and a heat exchange air inlet 101 on the casing 1, when the heat exchange fan 41 operates, the indoor air is sucked into the casing 1 from the heat exchange air inlet 101, and after heat exchange with the indoor heat exchanger 2, the heat-exchanged air is sent to the indoor from the heat exchange air outlet 102.

[0062] In the solution of the present application, in the height direction of the main body 1000, the heat exchange air inlet 101 is located above the heat exchange air outlet 102, which facilitates air intake from above and air outlet from below. In the present application, the height direction of the main body 1000 is the up-and-down direction.

[0063] Referring to Figure 1 and Figure 2 The heat exchange air inlet 101 is located above the heat exchange air outlet 102. The heat exchange air inlet 101 can intake air from above, which can avoid intake air from the heat exchange air outlet 102, prevent the heat-exchanged air from being directly sucked into the heat exchange air inlet 101 after being blown out from the heat exchange air outlet 102, and reduce the process of the heat-exchanged air idling without participating in indoor heat exchange.

[0064] In some specific embodiments, the heat exchange air inlet 101 is located at the top of the casing 1, that is, in an area that is not visible to the user. Hiding the heat exchange air inlet 101 can improve the aesthetic appearance.

[0065] In some embodiments, the heat exchange air outlet 102 is located directly in front of the casing 1, or the heat exchange air outlet 102 is located on the front side of the casing 1 and near the bottom. In the solution of the present application, the heat exchange fan 41 is located on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101. It can be understood that the heat exchange fan 41 is a power driving member that drives the indoor air to exchange heat with the indoor heat exchanger 2 by rotation, and is also a power driving member for air supply.

[0066] In the solution of the present application, as Figure 4 shown, the first motor 42 is located at one end of the main body 1000 in the length direction. This facilitates the installation and maintenance of the first motor 42, and the overall main body 1000 does not need to become too high or too thick due to the setting of the first motor 42. Here, the height direction of the main body 1000 is the same as the up and down direction, and the thickness direction of the main body 1000 is the same as the front and back direction.

[0067] In the solution of the present application, the wall-mounted air conditioner 10000 further includes a second motor 5 (as Figure 8 shown), the second motor 5 is disposed in the accommodating cavity V1, and the second motor 5 is located at the other end of the main body 1000 in the length direction. The first motor 42 and the second motor 5 are located at both ends of the main body 1000 in the length direction. The two motors are far apart and have little mutual electromagnetic interference. The two motors are arranged at both ends of the main body 1000 in the length direction, rather than in the thickness or height direction of the main body 1000, making the main body 1000 of the wall-mounted air conditioner 10000 slender in shape, with a slender, thin and light appearance.

[0068] Referring to Figure 9 and Figure 10 , the second motor 5 includes: a stator portion 51 and a rotor portion 52, and the stator portion 51 and the rotor portion 52 are the main parts of the second motor 5. The stator portion 51 has a wound coil, and the coil generates an alternating magnetic field after passing through alternating current. The rotor portion 52 generates induction and rotates in the alternating magnetic field.

[0069] Optionally, the rotor portion 52 can be a magnetic ring or a magnetic tile, and the rotor portion 52 is preferably a magnetic ring. In this way, magnetic leakage loss can be reduced, magnetic flux can be enhanced, and the power output efficiency of the second motor 5 can be improved. Moreover, when a magnetic ring is used, the magnetic field distribution is uniform, the anti-interference performance is good, and the mechanical precision is higher.

[0070] The second motor 5 is an outer-rotor motor. In the radial direction of the stator portion 51, the rotor portion 52 is disposed around the outside of the stator portion 51. The second motor 5 is selected as an outer-rotor motor. Not only is the structure of the outer-rotor motor simple, but also since the rotor portion 52 is disposed around the outside of the stator portion 51 in the radial direction of the stator portion 51, the diameter size of the rotor portion 52 is large, and a relatively large torque can be obtained. It can be used in scenarios such as low-speed high-torque and direct drive. That is, when the second motor 5 outputs power outward, a speed reducer does not need to be provided to reduce speed and increase torque, saving the space occupied by the speed reducer.

[0071] In addition, the rotor portion 52 is located radially outside the stator portion 51, with a relatively large heat dissipation area and good heat dissipation performance, which is beneficial to the stable operation of the second motor 5. And after being arranged in this way, the diameter size of the second motor 5 can be controlled to be relatively small, without occupying the space of the air flow channel.

[0072] Refer to Figure 9 and Figure 10 The second motor 5 further includes: a motor housing 53, and the motor housing 53 can support and protect the main body portion of the second motor 5. The motor housing 53 is fixedly connected to the rotor portion 52 and rotates synchronously with the rotor portion 52. In this way, the rotor portion 52 can be fixed by the motor housing 53, which is convenient for connection with external structures.

[0073] The second motor 5 further includes: an output shaft 532, the output shaft 532 is fixedly connected to the motor housing 53, and the output shaft 532 extends along the axial direction of the motor housing 53 toward the side of the heat exchange fan 41. That is to say, the main body portion of the second motor 5 is separated from the indoor heat exchanger 2 and the heat exchange fan 41 by a certain distance, reducing the vibration transmitted from the operation of the second motor 5 to the indoor heat exchanger 2 and the heat exchange fan 41.

[0074] Refer to Figure 8 The wall-mounted air conditioner 10000 further includes: a fresh air fan 6, the fresh air fan 6 is a centrifugal fan with axial air inlet and radial air outlet. The fresh air fan 6 is located on the side of the heat exchange fan 41 away from the first motor 42. The fresh air fan 6 is located between the heat exchange fan 41 and the motor housing 53, and the fresh air fan 6 is connected to the output shaft 532 of the second motor 5.

[0075] Refer to Figure 8 The wall-mounted air conditioner 10000 further includes: an exhaust fan 7, the exhaust fan 7 is a centrifugal fan with axial air inlet and radial air outlet. In the length direction of the main body 1000, the exhaust fan 7 is located on the side of the fresh air fan 6 facing the second motor 5. The exhaust fan 7 is sleeved on the radial outside of the motor housing 53, and the exhaust fan 7 is fixedly connected to the motor housing 53. Among them, the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously in the working state.

[0076] The characteristics of the centrifugal fan itself include a compact structure, a large air volume, and low noise. Moreover, when the rotational speed decreases, the fan noise decreases significantly. Therefore, for the fresh air fan 6 and the exhaust fan 7, centrifugal fans with smaller sizes can be selected to meet the large air volume requirements. The centrifugal fan has small vibration noise and is not prone to resonance with the indoor heat exchanger 2, effectively controlling the overall vibration and noise of the wall-mounted air conditioner 10000.

[0077] Both the fresh air fan 6 and the exhaust fan 7 adopt centrifugal fans, and the air directions of the fresh air fan 6 and the exhaust fan 7 can be reasonably arranged. Specifically, the fresh air fan 6 takes in air axially and discharges air radially, and the exhaust fan 7 takes in air axially and discharges air radially. The fresh air fan 6 and the exhaust fan 7 take in air from two ends far away from each other, and then after being driven, the fresh air and the exhaust air are both discharged radially. The flow paths of the fresh air and the exhaust air do not need to overlap axially and do not need to cross. This helps to reduce the avoidance corner design of the fresh air and exhaust air paths, reduce wind resistance and energy consumption, ensure the air volume, and reduce noise.

[0078] Refer to Figures 5 - 8 , the wall-mounted air conditioner 10000 further includes: a fresh air volute 8. A fresh air duct V01 is formed inside the fresh air volute 8. The fresh air fan 6 is installed inside the fresh air volute 8. A fresh air inlet 801 and a fresh air outlet 802 are formed on the fresh air volute 8. When the fresh air fan 6 rotates, outdoor air can enter the fresh air volute 8 from the fresh air inlet 801, and the outdoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802.

[0079] Refer to Figures 5 - 8 , the wall-mounted air conditioner 10000 further includes: an exhaust volute 9. The exhaust volute 9 is located on the side of the fresh air volute 8 facing the second motor 5. An exhaust duct V02 is formed inside the exhaust volute 9. The exhaust fan 7 is installed inside the exhaust volute 9. An exhaust air inlet 901 and an exhaust air outlet 902 are formed on the exhaust volute 9. When the exhaust fan 7 rotates, indoor air can enter the exhaust volute 9 from the exhaust air inlet 901, and the indoor air entering the exhaust volute 9 can be discharged to the outside from the exhaust air outlet 902.

[0080] In the solution of this application, the fresh air volute 8 and the fresh air fan 6 form a fresh air module. The fresh air fan 6 is arranged in the fresh air duct V01 and is used to drive the air flow to be inhaled from the fresh air inlet 801 and discharged to the room through the fresh air outlet 802. The operation of the fresh air fan 6 provides the power for the fresh air to flow. Thus, by setting the fresh air duct V01 in cooperation with the fresh air fan 6, when the air in the room is relatively dirty or the air quality is average, the fresh air fan 6 can be used to drive the relatively fresh outdoor air into the indoor environment to improve the indoor air flow environment.

[0081] In the solution of this application, an exhaust volute 9 and an exhaust fan 7 form an exhaust module. The exhaust fan 7 is arranged in an exhaust air duct V02 and is used to drive air flow to be inhaled from an exhaust air inlet 901 and discharged out of the room through an exhaust air outlet 902. The operation of the exhaust fan 7 provides the power for the flow of the polluted air flow.

[0082] A second motor 5, a fresh air fan 6, an exhaust fan 7, a fresh air volute 8 and an exhaust volute 9 form a two-way ventilation component, and the two-way ventilation component is arranged in a main body 1000. The two-way ventilation component can provide fresh air for the room and can discharge the indoor air to the outside.

[0083] It should be noted that the operation mode of the two-way ventilation component in the wall-mounted air conditioner 10000 can be set according to actual usage requirements. In some embodiments, the two-way ventilation component can simultaneously operate in a fresh air mode and an exhaust mode, that is, the fresh air duct V01 and the exhaust air duct V02 can be opened simultaneously. While the indoor polluted air flow flows to the outdoor space, the fresh air outside can also enter the indoor space, through a combination of air flow driving in and out.

[0084] Moreover, since while discharging the indoor air to the outside, fresh outdoor air is replenished into the room, keeping the indoor air volume sufficient and making it easier to suck away the indoor air. For example, when there are irritating gases (such as gases released by home improvement materials), gas or other gas leaks in the room, the two-way ventilation component can be set to simultaneously operate in the fresh air mode and the exhaust mode to achieve rapid ventilation. And compared with the design of simply introducing fresh air in the conventional fresh air structure, the two-way ventilation component of this application has a larger purification flow rate per unit time, a higher ventilation efficiency and a faster purification effect. When ventilating, it avoids the rapid change of the indoor temperature caused by too fast ventilation like directly opening the window, and avoids causing discomfort to the indoor personnel due to the sudden rise or fall of the temperature. And the position of the main body 1000 is relatively high, and the ventilation position will not cause discomfort due to being too close to people.

[0085] In other embodiments, the two-way ventilation component can alternatively operate in the fresh air mode and the exhaust mode, that is, when the two-way ventilation component turns on the fresh air mode, the exhaust mode is shut down, and at this time only the fresh air duct V01 is ventilated and the exhaust air duct V02 is not ventilated. Or when the two-way ventilation component turns on the exhaust mode, the fresh air mode is shut down, and at this time the fresh air duct V01 is not ventilated and the exhaust air duct V02 is ventilated.

[0086] In some embodiments, a two-way ventilation component is arranged in the wall-mounted air conditioner 10000. As Figure 8 shown, the two-way ventilation component includes: a second motor 5, a fresh air fan 6, an exhaust fan 7, a fresh air volute 8 and an exhaust volute 9.

[0087] Since the two-way ventilation component of the present application is to be arranged inside the wall-mounted air conditioner 10000, and the wall-mounted air conditioner 10000 has size and weight limitations due to being mounted on the wall. To avoid excessive increases in the size and weight of the wall-mounted air conditioner 10000 after adding the two-way ventilation component, many restrictions and optimizations have been made in the design of the two-way ventilation component of the present application, so that the designed wall-mounted air conditioner 10000 has practical use and promotion value.

[0088] In this embodiment, the second motor 5 is located at the end of the main body 1000 in the length direction, and the axial direction of the second motor 5 is arranged along the length direction of the main body 1000. The second motor 5 is the common power source for the fresh air module and the exhaust air module of the two-way ventilation component. To ensure the operation of the fresh air module and the exhaust air module, the second motor 5 needs to have sufficient operating power to drive sufficient air volume flow. Based on the power requirement of the second motor 5, the second motor 5 needs to be of a sufficiently large size.

[0089] In this embodiment, on the premise that the size parameters of the second motor 5 are generally determined, when arranging the fresh air module and the exhaust air module at this time, what is considered is how to utilize the space where the second motor 5 is located and occupy as little additional space as possible. Among them, in this embodiment, both the fresh air fan 6 and the exhaust air fan 7 adopt centrifugal fans and are connected to the same motor. This not only saves the number of motors, but also keeps the two centrifugal fans arranged in a stacked manner along the axial direction of the second motor 5, that is, the two centrifugal fans are arranged in a stacked manner along the length direction of the main body 1000.

[0090] In this embodiment, the centrifugal fan itself is relatively flat in the axial direction. The fresh air fan 6 and the exhaust air fan 7 can be stacked in this way to reduce the overall occupied axial dimension, so that the length of the main body 1000 does not need to be too long. Since the fresh air fan 6 and the exhaust air fan 7 are connected to the same motor and rotate synchronously, they are in step with each other and do not need to have too large a gap between them. The axial distance between the fresh air fan 6 and the exhaust air fan 7 can be arranged to be relatively close.

[0091] It should be noted that when referring to "axial direction", "radial direction", and "circumferential direction", they are all based on the axial direction, radial direction, and circumferential direction of the motor, that is, the direction parallel to the extension direction of the output shaft 532 of the second motor 5 is the axial direction, the direction perpendicular to the extension direction of the output shaft 532 is the radial direction, and the direction around the output shaft 532 is the circumferential direction.

[0092] In this embodiment, the indoor air is discharged outdoors through the exhaust air module. By setting the exhaust air volume to be less than the fresh air volume, the loss of cooling capacity can be reduced. Therefore, the second motor 5 occupies the space of the exhaust air duct V02, leaving more space for the fresh air duct V01, which is beneficial to ensuring a larger fresh air volume.

[0093] In this embodiment, the fresh air module and the exhaust air module are effectively integrated, enabling the two modules to rationally utilize their respective structural and spatial characteristics to complete a flat design. This not only reduces the overall size and weight of the two-way ventilation component, making the two-way ventilation component as a whole lightweight and the air ducts non-interfering with each other. The two-way ventilation component is arranged at one end in the length direction of the main body 1000. Compared with the main body without the two-way heat exchange component, only the lateral length is increased, and the height and thickness of the main body 1000 can generally remain unchanged or change slightly, making the appearance of the main body 1000 thin and light. When hung on the wall, it will not affect the indoor space layout due to being too obtrusive, nor will it cause difficulties in fixing the wall-mounted air conditioner 10000 due to being too heavy, reducing the risk of falling off the wall. The wall-mounted air conditioner 10000 as a whole is still a thin and light model, which is not only beautiful when hung on the wall, but also has a controllable weight.

[0094] In some specific embodiments, such as Figures 8 - 10 shown, a part of the output shaft 532 is located inside the stator part 51, and the output shaft 532 is rotatably connected to the stator part 51. In this way, the output shaft 532 can be supported by the stator part 51, improving the axial and radial bending moment bearing capacity on the output shaft 532 and enhancing the rotational stability of the output shaft 532.

[0095] Specifically, as Figure 10 shown, a part of the motor housing 53 is located radially outside the rotor part 52, increasing the connection area and realizing stable fixation of the rotor part 52. Further, the motor housing 53 and the exhaust fan 7 are integrally injection-molded parts, thereby reducing the processing steps and improving the connection firmness between the motor housing 53 and the exhaust fan 7.

[0096] In the solution of this application, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000. It can be understood that the fresh air inlet 801 needs to be connected to a pipe to introduce outdoor air. Here, this pipe is called the fresh air introduction pipe 141 (as Figure 2 shown). The fresh air introduction pipe 141 can be a part of the wall-mounted air conditioner 10000, or a fresh air introduction pipe 141 separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0097] The fresh air inlet 801 is arranged below the main body 1000. In this way, the fresh air inlet pipe 141 can be connected to the fresh air inlet 801 from below, and the connection part extends generally in the vertical direction instead of in the front-back direction to make the main body 1000 too thick. Thus, the wall-mounted air conditioner 10000 can still maintain a thin and light appearance. Moreover, the part of the fresh air volute 8 where the fresh air fan 6 is installed is circular. Based on the axis of the fresh air volute 8 extending along the length direction of the main body 1000, there is free space on both the front side and the rear side at the bottom of this circle. This part of the space can be used to arrange the fresh air inlet 801 to connect the fresh air inlet pipe 141. Thus, the connection part between the fresh air inlet pipe 141 and the fresh air inlet 801 can be placed in this free space without occupying additional space, so that the height dimension of the main body 1000 can be controlled.

[0098] In the solution of the present application, in the height direction of the main body 1000, the exhaust air outlet 902 is located below the main body 1000. It can be understood that the exhaust air outlet 902 needs to be connected to a pipe to guide the indoor air to the outside. Here, this pipe is called the exhaust air outlet pipe 142 (as Figure 2 shown). The exhaust air outlet pipe 142 can be a part of the wall-mounted air conditioner 10000, or an exhaust air outlet pipe 142 additionally configured by the user after purchasing the wall-mounted air conditioner 10000.

[0099] The exhaust air outlet 902 is arranged below the main body 1000. In this way, the exhaust air outlet pipe 142 can be connected to the exhaust air outlet 902 from below, and the connection part extends generally in the vertical direction instead of in the front-back direction to make the main body 1000 too thick. Thus, the wall-mounted air conditioner 10000 can still maintain a thin and light appearance. Moreover, the part of the exhaust air volute 9 where the exhaust air fan 7 is installed is circular. Based on the axis of the exhaust air volute 9 extending along the length direction of the main body 1000, there is free space on both the front side and the rear side at the bottom of this circle. And based on the characteristics of the axial air inlet and radial air outlet of the exhaust air fan 7, the diffuser section of the exhaust air volute 9 can be generally arranged in the vertical direction and can be placed in the front-side or rear-side free space mentioned above. The exhaust air outlet 902 is arranged here to connect the exhaust air outlet pipe 142. Thus, the connection part between the exhaust air outlet pipe 142 and the exhaust air outlet 902 can be placed in this free space without occupying additional space, so that the height dimension of the main body 1000 can be controlled.

[0100] In some specific embodiments, such as Figure 2As shown in the figure, the wall-mounted air conditioner 10000 may include: a fresh air inlet pipe 141 connected to the fresh air inlet 801, and an exhaust outlet pipe 142 connected to the exhaust outlet 902. An avoidance opening 104 for the pipes is provided on the bottom wall of the housing 1. The fresh air inlet pipe 141 and the exhaust outlet pipe 142 pass through the avoidance opening 104 for the pipes and extend out of the main body 1000 from below. The fresh air inlet pipe 141 and the exhaust outlet pipe 142 are two independent pipe components, which helps to separate the fresh air flow path and the exhaust air flow path from each other, without intersection, and reduces the risk of air leakage caused by cross-flow.

[0101] The avoidance opening 104 for the pipes is provided on the bottom wall of the main body 1000, which is convenient for installing the above pipes.

[0102] Furthermore, the air inlet direction of the fresh air inlet 801 is set upward. Specifically, the air inlet direction of the fresh air inlet 801 is perpendicular to the length direction of the main body 1000. In this way, after the two-way ventilation component is arranged at the end of the wall-mounted air conditioner 10000, when the fresh air inlet pipe 141 is connected to the fresh air inlet 801, the fresh air inlet pipe 141 will not cause the overall length of the wall-mounted air conditioner 10000 to be overly elongated. Or, the air outlet direction of the exhaust outlet 902 is set downward. In this way, after the two-way ventilation component is arranged at the end of the wall-mounted air conditioner 10000, when the exhaust outlet pipe 142 is connected to the exhaust outlet 902, the exhaust outlet pipe 142 will not cause the overall length of the wall-mounted air conditioner 10000 to be overly elongated. Even further, the exhaust outlet 902 is located at the bottom of the main body 1000 and is close to the rear side. In this way, after the exhaust outlet pipe 142 is connected to the exhaust outlet 902, it is convenient for the exhaust outlet pipe 142 to be arranged close to the wall.

[0103] Of course, the solution of this application is not limited to this. For example, Figure 1 As shown in the figure, the avoidance opening 104 for the pipes may also be provided on the side wall of the housing 1. After the fresh air inlet pipe 141 is connected to the fresh air inlet 801 from below the main body 1000, it bends and extends horizontally, then extends out from the avoidance opening 104 on the side wall of the housing 1, and then extends to the outside. After the exhaust outlet pipe 142 is connected to the exhaust outlet 902 from below the main body 1000, it bends and extends horizontally, then extends out from the avoidance opening 104 on the side wall of the housing 1, and then extends to the outside.

[0104] It can be understood that a refrigerant pipe and a drain pipe are usually arranged at one end of the main body 1000 in the length direction. The refrigerant pipe is used to connect the indoor heat exchanger 2 with the compressor and the outdoor heat exchanger outside, and the drain pipe is used to discharge the condensed water generated in the wall-mounted air conditioner 10000.

[0105] The bypass opening 104 of the inlet pipe is arranged on the side wall of the casing 1, and then the fresh air inlet pipe 141 and the exhaust air outlet pipe 142 are arranged horizontally and led out, so as to facilitate arranging at least one of the fresh air inlet pipe 141 and the exhaust air outlet pipe 142 side by side with the drain pipe and the refrigerant pipe. Then, the multiple pipes arranged side by side are covered by an outer binding pipe or a binding band, so that the multiple pipes are formed into one pipe in appearance, thereby reducing the number of connecting pipes on the wall-mounted air conditioner 10000 after installation, with a simple appearance, which is not only convenient for assembly but also avoids the risk of collision of multiple pipes.

[0106] In some embodiments, such as Figure 8 and Figure 11 shown, the exhaust fan 7 forms a receiving groove V07 at the center in the radial direction, and at least a part of the stator part 51 of the second motor 5, at least a part of the rotor part 52, and at least a part of the motor housing 53 are received in the receiving groove V07. Specifically, the hub of the exhaust fan 7 forms the receiving groove V07.

[0107] Moreover, the hub of the exhaust fan 7 has a protective effect after being sleeved outside the second motor 5, and can also make the center of mass of the exhaust fan 7 as close as possible to the center of the rotor part 52, so that the bending moment generated by the exhaust fan 7 on the second motor 7 is small, the exhaust fan 7 shakes less when rotating, the exhaust fan 7 operates stably and has low energy consumption.

[0108] In some embodiments, such as Figure 1 shown, an air outlet 105 of the casing is arranged on the casing 1. The air outlet 105 of the casing corresponds to the fresh air outlet 802 of the fresh air volute 8, so that the fresh air discharged from the fresh air outlet 802 is discharged from the air outlet 105 of the casing.

[0109] In some specific embodiments, the fresh air outlet 802 is located directly in front of the main body 1000, or the fresh air outlet 802 is located at the top of the main body 1000.

[0110] In still some specific embodiments, the fresh air outlet 802 is located below the main body 1000 to guide the fresh air to flow forward and downward into the room. Correspondingly, the air outlet 105 of the casing can be arranged below the casing 1.

[0111] Since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the position of the heat exchange air outlet 102 on the casing 1 is relatively low, the fresh air is blown out from below by the fresh air outlet 802, so that the air outlet area of the air outlet 105 of the casing is close to or even partially overlaps with the air outlet area of the heat exchange air outlet 102. This is beneficial to the mixing of the fresh air and the indoor air after heat exchange. On the one hand, it improves the uniformity of the fresh air mixed in the indoor air. On the other hand, the fresh air can absorb the cold or heat of the indoor air after heat exchange, making the temperature of the fresh air tend to the indoor temperature and improving the blowing comfort.

[0112] Moreover, the air outlet direction of the fresh air outlet 802 is opposite to the air inlet direction of the heat exchange air inlet 101, so that fresh air will not be sucked into the heat exchange air inlet 101, reducing the proportion of the fresh air intake at the heat exchange air inlet 101, increasing the total air output of the wall-mounted air conditioner 10000, and improving the overall circulation efficiency of the indoor air.

[0113] Moreover, the fresh air outlet 802 is located below the main body 1000, close to the activity space of people, which is convenient for people to observe the fresh air outlet condition. In this way, the visual effect of fresh air outlet is achieved, which is beneficial to improving people's experience and perception.

[0114] Optionally, as Figure 1 and Figure 3 shown, a grille 16 is provided at the air outlet 105 of the casing 1 to adjust the air outlet direction of the fresh air.

[0115] In some embodiments, as Figure 3 shown, the exhaust air inlet 901 is formed on the exhaust air volute 9, and the axial direction of the exhaust air inlet 901 is arranged along the length direction of the main body 1000. That is to say, the exhaust air inlet 901 faces the axial air inlet end of the exhaust fan 7, so that the air intake resistance of the exhaust fan 7 from the exhaust air inlet 901 is small, which is beneficial to ensuring the exhaust air intake. When the exhaust air intake is relatively easy, an exhaust fan 7 with a smaller size can be selected to further reduce the size of the two-way ventilation component.

[0116] Specifically, the exhaust air inlet 901 on the exhaust air volute 9 faces away from the indoor heat exchanger 2, and the air intake area of the exhaust air inlet 901 just avoids the indoor heat exchanger 2. When there is condensate on the indoor heat exchanger 2, or condensate adheres to the surface of parts near the indoor heat exchanger 2 in the accommodation cavity V1, the condensate is not easily sucked into the exhaust air duct V02 by the exhaust fan 7, reducing the risk of water accumulation and bacteria breeding in the exhaust air duct V02, and reducing the risk of motor damage caused by condensate entering the second motor 5. When the fresh air fan 6 rotates to intake air from the outside, the condensate on the indoor heat exchanger 2 at this time will not be sucked into the fresh air duct V01 either, reducing the risk of water accumulation and bacteria breeding in the fresh air duct V01. In some embodiments, as Figure 1 shown, an air inlet 103 of the casing is provided at one end of the casing 1 where the second motor 5 is located, and the air inlet 103 of the casing is located at the top of the main body 1000. A first continuous ventilation duct V04 is formed between the air inlet 103 of the casing and the exhaust air inlet 901. The exhaust fan 7 rotates to drive indoor air to enter the first continuous ventilation duct V04 from the air inlet 103 of the casing, and makes the indoor air enter the exhaust air volute 9 through the exhaust air inlet 901.

[0117] That is to say, there is no need to connect a physical pipeline between the chassis air inlet 103 and the exhaust air inlet 901. Only relying on the wind pressure, the air flow is inhaled from the top. The chassis air inlet 103 is located at the top of the chassis 1, that is, in the area that is not visible to the user. Hiding the chassis air inlet 103 can improve the appearance beauty.

[0118] In some other embodiments, a chassis air inlet 103 is provided at one end of the chassis 1 where the second motor 5 is located, and the chassis air inlet 103 is located on the side of the main body 1000. The exhaust fan 7 rotates to drive the indoor air to enter the interior of the chassis 1 through the chassis air inlet 103, and the indoor air enters the exhaust volute 9 through the exhaust air inlet 901. That is to say, there is no need to connect a physical pipeline between the chassis air inlet 103 and the exhaust air inlet 901, and the chassis air inlet 103 is located on the side of the main body 1000 and can be directly opposite to the exhaust air inlet 901.

[0119] In this way, on the one hand, the air inlet path from the chassis air inlet 103 to the exhaust air inlet 901 becomes shorter, and the air inlet path from the chassis air inlet 103 to the exhaust air inlet 901 is generally arranged along the axial direction of the exhaust fan 7. When the indoor air flows along this air inlet path to the exhaust fan 7, the air flow does not need to change the flow direction multiple times. In this way, the air inlet resistance of the exhaust can be further reduced to ensure the exhaust air intake.

[0120] Optionally, the exhaust fan 7 can be a plastic part, so as to be light in weight and low in cost. Of course, the solution of the present application is not limited to this, and the exhaust fan 7 can also be a resin part, a metal part, etc. Optionally, the fresh air fan 6 can be a plastic part, so as to be light in weight and low in cost. Of course, the solution of the present application is not limited to this, and the fresh air fan 6 can also be a resin part, a metal part, etc.

[0121] Similarly, the exhaust volute 9 can be a plastic part, so as to be light in weight and low in cost. Optionally, the exhaust volute 9 can be an injection molded part. Of course, the solution of the present application is not limited to this, and the exhaust volute 9 can also be a metal part, etc.

[0122] Optionally, the fresh air volute 8 can be a plastic part, so as to be light in weight and low in cost. Optionally, the fresh air volute 8 can be an injection molded part. Of course, the solution of the present application is not limited to this, and the fresh air volute 8 can also be a metal part, etc.

[0123] In some embodiments, the area of the outer circular surface of the fresh air fan 6 is S1, and the area of the outer circular surface of the exhaust fan 7 is S2. It satisfies that S1 > S2. Wherein, S1 = ΠD1 * h1, D1 is the outer diameter of the fresh air fan 6, and h1 is the total thickness of the fresh air wheel disc 61 and the fresh air blades 62 of the fresh air fan 6 in the axial direction.

[0124] The outer diameter D1 of the fresh air fan 6 refers to the diameter dimension at the farthest point from the axis of the fresh air fan 6. The fresh air fan 6 includes a fresh air wheel disc 61 and fresh air blades 62. The fresh air blades 62 are located at the outer edge of the fresh air wheel disc 61 and extend along the axial direction of the fresh air wheel disc 61. The total thickness of the fresh air wheel disc 61 and the fresh air blades 62 in the axial direction is h1. Here, the fresh air wheel disc 61 on the fresh air fan 6 can be one or at least two arranged at intervals along the axial direction. On each side of the axial direction of each fresh air wheel disc 61, only one circle of fresh air blades 62 can be arranged on one side, or one circle of fresh air blades 62 can be arranged on each side. When all the fresh air wheel discs 61 and the fresh air blades 62 make a vertical projection on the axis of the fresh air fan 6, the distance between the two farthest points in the projection is equal to h1.

[0125] S2 = ΠD2*h2, where D2 is the outer diameter of the exhaust fan 7 and h2 is the total thickness of the fresh air wheel disc 61 and the fresh air blades 62 on the exhaust fan 7 in the axial direction.

[0126] The outer diameter D2 of the exhaust fan 7 refers to the diameter dimension at the farthest point from the axis of the exhaust fan 7. The exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71 and extend along the axial direction of the exhaust wheel disc 71. The total thickness of the exhaust wheel disc 71 and the exhaust blades 72 in the axial direction is h2. Here, the exhaust wheel disc 71 on the exhaust fan 7 can be one or at least two arranged at intervals along the axial direction. On each side of the axial direction of each exhaust wheel disc 71, only one circle of exhaust blades 72 can be arranged on one side, or one circle of exhaust blades 72 can be arranged on each side. When all the exhaust wheel discs 71 and the exhaust blades 72 make a vertical projection on the axis of the exhaust fan 7, the distance between the two farthest points in the projection is equal to h2.

[0127] With such a setting, the area of the outer circular surface of the fresh air fan 6 is large, and the area of the outer circular surface of the exhaust fan 7 is small, which is beneficial to achieving a large fresh air volume under the condition of limited overall space size of the machine.

[0128] Optionally, according to the structural and functional requirements designed in this application, the outer diameter D1 of the fresh air fan 6 is greater than the outer diameter D2 of the exhaust fan 7, which is beneficial to making the area swept by the fan blades of the fresh air fan 6 when rotating larger than the area swept by the fan blades of the exhaust fan 7 when rotating. In this way, the fresh air volume is greater than the exhaust air volume, meeting the design requirements of the wall-mounted air conditioner 10000. That is, air is inhaled from the infinite outdoor space and sent into the room, which consumes less energy compared to sucking air from the relatively enclosed indoor space and discharging it outdoors. Moreover, the air freshness in the outdoor environment is high, and inhaling air from the outdoor and blowing it into the room is more conducive to supplementing fresh air in the indoor space, supplementing the oxygen content and reducing the carbon dioxide content in the indoor air.

[0129] Moreover, by setting the outer diameter D2 of the exhaust fan 7 to be smaller than the outer diameter D1 of the fresh air fan 6, it is easy to stagger the exhaust air outlet 902 of the exhaust air duct V02 and the fresh air outlet 802 of the fresh air duct V01 on the outer periphery of the two-way ventilation component. On the one hand, it is convenient to connect the exhaust air lead-out pipe 142 to the exhaust air outlet 902 and the fresh air inlet pipe 141 to the fresh air outlet 802. On the other hand, it is easy to ensure that the flow paths of the fresh air and the exhaust air in the two-way ventilation component do not cross.

[0130] Specifically, as Figure 7 shown, the fresh air volute 8 has a fresh air diffuser section 805, and the fresh air outlet 802 is located at the end of the fresh air diffuser section 805. That is to say, the part of the fresh air volute 8 from its volute tongue to the fresh air outlet 802 along its tangential direction is the fresh air diffuser section 805. The exhaust air volute 9 has an exhaust air diffuser section 905, and the exhaust air outlet 902 is located at the end of the exhaust air diffuser section 905. That is to say, the part of the exhaust air volute 9 from its volute tongue to the exhaust air outlet 902 along its tangential direction is the exhaust air diffuser section 905.

[0131] Specifically, the extending directions of the fresh air diffuser section 805 and the exhaust air diffuser section 905 are different, that is, there is an included angle between the extending direction of the fresh air diffuser section 805 and the extending direction of the exhaust air diffuser section 905, so that the fresh air outlet 802 and the exhaust air outlet 902 are staggered. In Figure 7 the example, taking the vertical line passing through the axis of the second motor 5 as a reference quantity, the included angle between the extending direction of the fresh air diffuser section 805 and the vertical line is α1, and the included angle between the extending direction of the exhaust air diffuser section 905 and the vertical line is α2, and α1 and α2 are not equal. The included angle between the extending direction of the fresh air diffuser section 805 and the extending direction of the exhaust air diffuser section 905 is equal to (α2 - α1).

[0132] Specifically, the volute tongues of the fresh air volute 8 and the exhaust air volute 9 are staggered in the circumferential direction of the second motor 5.

[0133] In this way, it is easy to stagger the exhaust air outlet 902 of the exhaust air duct V02 and the fresh air outlet 802 of the fresh air duct V01 on the outer periphery of the two-way ventilation component, which is convenient to connect the exhaust air lead-out pipe 142 to the exhaust air outlet 902 and the fresh air inlet pipe 141 to the fresh air outlet 802, avoiding interference caused by the too close distance between the two pipe joints, and it is not only convenient for assembly but also for sealing.

[0134] Moreover, in some specific embodiments, the air outlet direction of the exhaust air outlet 902 is set downward, and the air outlet direction of the fresh air outlet 802 is set forward. This can not only directly stagger the connection positions of the exhaust air outlet 902 and the fresh air outlet 802, but also the downward air outlet direction of the exhaust air outlet 902 is convenient for connecting the fresh air inlet pipe 141, facilitating the fresh air inlet pipe 141 to be arranged against the wall. The forward air outlet direction of the fresh air outlet 802 can send the fresh air forward, making the fresh air supply range larger.

[0135] Specifically, in the height direction of the main body 1000, both the fresh air inlet 801 and the exhaust air outlet 902 are located below the main body 1000. In this way, the fresh air diffuser section 805 of the fresh air volute 8 and the exhaust air diffuser section 905 of the exhaust air volute 9 both extend downward, and the positions of the two diffuser sections are generally the same in the height direction, which can avoid the overall excessive height occupation of the fresh air volute 8 and the exhaust air volute 9, and is beneficial to reducing the height dimension of the main body 1000.

[0136] Specifically, the exhaust air diffuser section 905 is located at the rear side of the exhaust air volute 9, and the air outlet direction of the exhaust air outlet 902 is set downward. In this way, not only when the exhaust air outlet pipe 142 is connected to the exhaust air outlet 902, the exhaust air outlet pipe 142 will not cause the overall excessive elongation of the wall-mounted air conditioner 10000, but also the exhaust air diffuser section 905 remains on the side of the exhaust air volute 9 against the wall, facilitating the main body 1000 to be made into a shape that is wider at the back and narrower at the front.

[0137] When the main body 1000 is made into a shape that is wider at the back and narrower at the front and is installed against the wall with the wider back, what people see when observing the wall-mounted air conditioner 10000 is the narrower front part, which is conducive to creating an impression that the wall-mounted air conditioner 10000 is thinner and lighter. This can reduce the sense of heaviness of the wall-mounted air conditioner 10000, and further reduce the sense of depression generated after the wall-mounted air conditioner 10000 is hung on the wall.

[0138] Furthermore, while the air outlet direction of the fresh air outlet 802 is downward, it is inclined forward. This is beneficial for the wall-mounted air conditioner 10000 to send fresh air forward, ensuring that the fresh air can reach the ground and can also reach a sufficient distance.

[0139] Specifically, the fresh air outlet 802 is located in front of the exhaust air outlet 902, so that the distance between the fresh air outlet 802 and the exhaust air outlet 902 is larger, which is more conducive to reducing mutual interference and facilitating pipe connection.

[0140] In some embodiments, such as Figure 7As shown, the length L1 of the fresh air diffuser section 805 is greater than the length L2 of the exhaust air diffuser section 905. The longer fresh air diffuser section 805 can provide a longer flow path and a more sufficient pressure increase process for the air flow. This enables the air flow to effectively reduce its speed and gradually increase its pressure when passing through the fresh air diffuser section 805, which is beneficial for expanding the fresh air supply distance. Since the exhaust air is discharged outdoors, there is no need to consider the supply distance after the exhaust air is discharged. Therefore, the exhaust air diffuser section 905 can be set shorter.

[0141] In Figure 7 example, the exhaust air diffuser section 905 is generally vertically arranged, and the fresh air diffuser section 805 is inclined. In this way, without making the overall height of the component too high, the longer fresh air diffuser section 805 can be ensured.

[0142] Moreover, in some solutions of this application, the fresh air volume is much larger than the exhaust air volume, and the length relationship between the fresh air diffuser section 805 and the exhaust air diffuser section 905 matches the air volume relationship.

[0143] In some embodiments, the outer diameter D1 of the fresh air fan 6 is greater than the outer diameter D2 of the exhaust air fan 7 to ensure that the fresh air volume is greater than the exhaust air volume.

[0144] Correspondingly, the fresh air volute 8 includes a first volute enclosure plate 812 surrounding the radial outside of the fresh air fan 6, and the exhaust air volute 9 includes a second volute enclosure plate 906 surrounding the radial outside of the exhaust air fan 7. The diameter of the first volute enclosure plate 812 is greater than the diameter of the second volute enclosure plate 906. This can make the component parts compact and reduce the overall occupied space.

[0145] Moreover, more space can be vacated on the radial outside of the second volute enclosure plate 906, enabling air to flow in the space outside the exhaust air volute 9 in the radial direction inside the housing 1. In this way, when the exhaust air volute 9 sucks in air from the exhaust air inlet 901, more air can enter, which is beneficial for increasing the exhaust air intake volume.

[0146] Furthermore, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000. In the length direction of the main body 1000, the fresh air outlet 802 is located between the exhaust air outlet 902 and the fresh air inlet 801. With such an arrangement, the connection positions of the fresh air outlet 802, the exhaust air outlet 902, and the fresh air inlet 801 are compact, which is beneficial for reducing the overall size.

[0147] In some embodiments, as Figure 1 shown, a housing outlet 105 is provided on the housing 1, and the housing outlet 105 corresponds to the fresh air outlet 802. As Figure 3As shown, the wall-mounted air conditioner 10000 may include: an expansion pipe 19 connected between the housing air outlet 105 and the fresh air outlet 802, and the flow area of ​​the expansion pipe 19 gradually increases in the direction toward the housing air outlet 105. In other words, the expansion pipe 19 causes the fresh air outlet to undergo a pressure expansion process again, thereby further increasing the fresh air pressure and further increasing the air supply range.

[0148] Specifically, the exhaust air outlet 902 and the fresh air inlet 801 are located below the main body 1000 and close to the rear side, so that there will not be too much interference with the expansion tube 19 after the connection.

[0149] Furthermore, in the length direction of the main body 1000, the size L3 of the housing air outlet 105 (eg Figure 1 As shown), it is greater than the sum of the thicknesses of the fresh air fan 6 and the exhaust fan 7. Figure 12 As shown, the thickness of the fresh air fan 6 in the length direction of the main body 1000 is h1, and the thickness of the exhaust fan 7 in the length direction of the main body 1000 is H20. The sum of h1 and H20 is less than the length L3 of the housing air outlet 105. Such a device is to make the housing air outlet 105 longer in the length direction of the main body 1000, and make full use of the free space provided by the two-way ventilation component in this direction. This is conducive to lengthening the fresh air outlet in this direction, and is conducive to expanding the fresh air outlet width, so that the fresh air is delivered to a wider area.

[0150] In some embodiments, Figure 11 As shown, on the exhaust fan 7, the total thickness of the exhaust wheel 71 and the exhaust blades 72 in the axial direction is h2. Figure 12 As shown, the total axial thickness of the fresh air disc 61 and the fresh air blades 62 on the fresh air fan 6 is h1, where h2 < h1. This arrangement ensures that the fresh air volume is greater than the exhaust air volume while making the axial thickness of the main part of the fresh air fan 7 larger, so that the structural strength is greater and can bear a greater torque. The exhaust fan 7 requires less air volume, and the smaller axial thickness of the main part can appropriately reduce the exhaust air volume and reduce the axial size of the two-way ventilation component.

[0151] In some embodiments, Figure 10As shown, the total thickness in the axial direction of the stator portion 51, the rotor portion 52, and the motor housing 53 is h3. The exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71, and the exhaust blades 72 extend along the axial direction of the exhaust wheel disc 71. The total thickness in the axial direction of the exhaust wheel disc 71 and the exhaust blades 72 is h2. It satisfies h3 > h2. It can be understood that the second motor 5 needs to drive the fresh air fan 6 and the exhaust fan 7 simultaneously. Although the exhaust air volume is designed to be relatively small, the fresh air volume is designed to be relatively large. Therefore, the total thickness in the axial direction of the stator portion 51, the rotor portion 52, and the motor housing 53 is set to be greater than the axial thickness of the main body of the exhaust fan 7 to ensure that the second motor 5 can support the rotation of the two fans and improve the sufficient supporting force of the second motor 5.

[0152] Among them, the exhaust fan 7 may include a convex portion 74 provided on the exhaust wheel disc 71. The center of the convex portion 74 is located on the axis of the exhaust fan 7, and the convex portion 74 extends in the direction towards the fresh air fan 6 relative to the exhaust wheel disc 71, so that a receiving groove V07 for the second motor 5 is formed on the side of the convex portion 74 close to the second motor 5, and at least a part of the stator portion 51 and at least a part of the rotor portion 52 are received in the receiving groove V07.

[0153] In some embodiments, the total thickness in the axial direction of the stator portion 51, the rotor portion 52, and the motor housing 53 is h3, and the total thickness in the axial direction of the fresh air wheel disc 61 and the fresh air blades 62 on the fresh air fan 6 is h1, where h1 > h3. This also ensures a relatively large fresh air volume, and the second motor 5 does not need to occupy too much duct space.

[0154] In some embodiments, as Figure 11 and Figure 14 shown, the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71, and the exhaust blades 72 extend along the axial direction of the exhaust wheel disc 71 in the direction away from the fresh air fan 6.

[0155] Referring to Figure 5 and Figure 15 , the fresh air volute 8 includes: a first volute 81 and a second volute 82. The first volute 81 is located on the side of the exhaust volute 9 facing the heat exchange fan 41, and the first volute 81 is detachably connected to the exhaust volute 9. The second volute 82 is located on the side of the first volute 81 facing the heat exchange fan 41, and the second volute 82 is detachably connected to the first volute 81. The first volute 81 is located between the exhaust volute 9 and the second volute 82.

[0156] Referring to Figure 14 , the first volute 81 includes a first volute end plate 811 and a first volute shroud 812. The first volute shroud 812 is formed by extending along the edge of the first volute end plate 811 towards the heat exchange fan 41.

[0157] Among them, a central part area of the first volute end plate 811 forms a recessed part 813 facing the fresh air fan 6, and a perforated part 814 is provided at the center of the recessed part 813. At least a part of the protruding part 74 is located in the recessed part 813, and the output shaft 532 is connected to the fresh air fan 6 through the perforated part 814.

[0158] In this application, the fresh air volute 8 is axially divided into at least a first volute 81 and a second volute 82 for separate processing, which can reduce the manufacturing and assembly difficulties. Moreover, for such a complex housing, it is convenient to carry out quality control after separate manufacturing. The first volute 81 is detachably connected to the exhaust volute 9, and the second volute 82 is detachably connected to the first volute 81, which is convenient for assembly and subsequent adjustment and maintenance.

[0159] A protruding part 74 is provided at the center of the exhaust wheel disc 71, and a recessed part 813 is formed at the center of the first volute end plate 811. On the one hand, the hub of the exhaust fan 7 is used to form the protruding part 74 to accommodate the second motor 5, and the protruding part 74 can improve the structural strength of the exhaust fan 7. On the other hand, the main body part of the second motor 5 is assembled in the protruding part 74, occupying more of the exhaust air duct V02 and less of the fresh air duct V01, which is matched with the design that the fresh air volume is greater than the exhaust air volume. Only the output shaft 532 passes through the first volute end plate 811, which helps with sealing, reduces the chance of mutual flow of fresh air and exhaust air, and reduces air flow disturbance.

[0160] In the solution of this application, in order to make the wall-mounted air conditioner 10000 more safe and reliable, the external dimensions of the main body 1000 are strictly controlled. In this way, not only are the internal part clearances small and not easy to loosen, but also each air duct can be designed shorter, the size of the casing 1 is reduced, thereby reducing the overall weight of the main body 1000, making it safer to hang on the wall and thinner in appearance.

[0161] When controlling the size of the main body 1000, the key is how to reduce the structural size of the two-way ventilation component. Among the two-way ventilation components, it is necessary to first ensure that the second motor 5 can output sufficient power to meet the requirements of the exhaust air volume and the fresh air volume. Therefore, the thickness dimension of the second motor 5, especially the total thickness h3 of the stator part 51, the rotor part 52 and the motor housing 53 in the axial direction needs to be large enough, and the total thickness h3 of the stator part 51, the rotor part 52 and the motor housing 53 in the axial direction is greater than the axial thickness h2 of the main body part of the exhaust fan 7.

[0162] After the second motor 5 occupies a certain thickness dimension, in order to prevent the structural dimension of the two-way ventilation component from being further enlarged, when optimizing the exhaust fan 7, a convex portion 74 is provided at the center of the exhaust wheel disc 71. The convex portion 74 extends relative to the exhaust wheel disc 71 in the direction towards the fresh air fan 6, so that a receiving groove V07 for the second motor 5 is formed on the side of the convex portion 74 close to the second motor 5. At least a part of the stator portion 51 and at least a part of the rotor portion 52 are accommodated in the receiving groove V07, and a central partial area of the first volute end plate 811 of the first volute 81 is formed into a recessed portion 813 facing the fresh air fan 6, so that at least a part of the convex portion 74 is located in the recessed portion 813.

[0163] With such a setting, it is also beneficial to reduce the distance between the main body portion of the second motor 5 and the fresh air fan 6, thereby facilitating the reduction of the axial distance between the fresh air fan 6 and the main body portion of the second motor 5, reducing the bending moment generated by the fresh air fan 6 on the output shaft 532. When the second motor 5 is in motion, the fresh air fan 6 and the exhaust fan 7 have a high coaxiality and are not prone to shaking, and can avoid abrasion and vibration caused by friction with the volute.

[0164] In some embodiments, referring to Figure 8 , the exhaust volute 9 and the fresh air volute 8 are connected, and the first volute end plate 811 is shared between them, and the fresh air duct V01 and the exhaust duct V02 are separated by the first volute end plate 811. Such a setting enables no gap to be required between the exhaust volute 9 and the fresh air volute 8, further reducing the axial dimension of the two-way ventilation component, reducing the occupied space in the wall-mounted air conditioner 10000, and being beneficial to the overall thin and light design of the wall-mounted air conditioner 10000.

[0165] Optionally, the first volute end plate 811 is a single-layer plate, which makes the structure simple and is beneficial to reducing the overall axial dimension.

[0166] In some embodiments, referring to Figure 8 、 Figure 11 and Figure 14 , the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust wheel disc 71 is coaxially arranged with the second motor 5 and is connected to the motor housing 53 of the second motor 5. The exhaust blades 72 are multiple, and the exhaust blades 72 are arranged on the exhaust wheel disc 71 and only extend in the direction away from the fresh air fan 6, and the multiple exhaust blades 72 are arranged circumferentially on the exhaust wheel disc 71. That is to say, the exhaust fan 7 includes single-layer centrifugal blades. In this way, when meeting the requirement of small air volume, the exhaust fan 7 has a simple structure and low cost. Moreover, the blade cylinder formed by the circumferential arrangement of the exhaust blades 72 is open towards the axial air inlet end, facilitating the inhalation of air flow, reducing the air suction resistance, and ensuring the air intake volume of the exhaust.

[0167] In some embodiments, referring to Figure 8 、Figure 12 and Figure 14 The fresh air impeller 61 is coaxially arranged with the second motor 5 and connected to the output shaft 532 of the second motor 5. The fresh air blades 62 include first fresh air blades 621 which extend from the fresh air impeller 61 in a direction away from the exhaust fan 7. The blade cylinder formed after the first fresh air blades 621 are arranged circumferentially is open towards the axial air inlet end, facilitating air flow inhalation, reducing the air suction resistance, and ensuring the fresh air intake volume.

[0168] Specifically, referring to Figure 8 、 Figure 12 and Figure 14 the fresh air blades 62 may include second fresh air blades 622 which extend from the fresh air impeller 61 in a direction close to the exhaust fan 7. In this way, the fresh air fan 6 includes double-layer centrifugal blades. Thus, in the case of meeting the large air volume requirement, the double-layer centrifugal blade structure design helps to increase the overall structural strength of the centrifugal fan.

[0169] Furthermore, in the axial direction of the fresh air fan 6, the length h12 of the second fresh air blades 622 is less than the length h11 of the first fresh air blades 621. Here, the first fresh air blades 621 face the axial air inlet end, so the axial length of the first fresh air blades 621 is larger, which is beneficial to obtaining a larger fresh air intake volume by using the first fresh air blades 621. And by using the shorter second fresh air blades 622, the replenishment of fresh air intake is realized. Moreover, the first fresh air blades 621 on the windward side are longer, which is beneficial to reducing noise while ensuring the fresh air volume.

[0170] Even further, the impeller disc 61 is formed with disc holes 612 for one side of the second fresh air blades 622 to inhale air through the disc holes 612, and the distance from the disc holes 612 to the center of the impeller disc 61 is less than the distance from the fresh air blades 62 to the center of the impeller disc 61. That is to say, the disc holes 612 are closer to the center of the impeller disc 61 relative to the fresh air blades 62. This is beneficial to guiding the air flow to be inhaled axially into the space where the second fresh air blades 622 are located when the second fresh air blades 622 inhale air from the disc holes 612, and reducing the turbulent flow generated by competing for air with the first fresh air blades 621.

[0171] In some specific embodiments, referring to Figure 5 、 Figure 8 and Figure 15, the second volute 82 includes: a second volute half 821 and a blower cover 822. The second volute half 821 is located on the side of the first volute 81 facing the heat exchange fan 41, and the second volute half 821 is detachably connected to the first volute 81. The second volute half 821 is provided with an axial ventilation port 8211 at the center in the radial direction. A volute cavity V011 is formed between the second volute half 821 and the first volute 81. The fresh air fan 6 is located in the volute cavity V011, and the axial air inlet end of the fresh air fan 6 is arranged facing the axial ventilation port 8211. The second volute half 821 and the first volute 81 enclose a fresh air outlet 802.

[0172] The blower cover 822 is located on the side of the second volute half 821 facing the heat exchange fan 41, and the blower cover 822 is detachably connected to the second volute half 821. Refer to Figure 8 , the cavity enclosed by the blower cover 822 and the second volute half 821 is a fresh air cavity V012, and the blower cover 822 and the second volute half 821 enclose a fresh air inlet 801.

[0173] After being arranged like this, a fresh air cavity V012 is formed at the air inlet end of the fresh air fan 6. The formed fresh air cavity V012 can cover the axial air inlet end of the fresh air fan 6, and the fresh air cavity V012 can be used to accommodate air, so that the air can enter the fresh air fan 6 vertically along the axis from the fresh air cavity V012, thereby improving the air suction efficiency of the fresh air fan 6 and reducing the air suction loss.

[0174] Among them, the blower cover 822 is located on the side of the second volute half 821 facing the indoor heat exchanger 2, so that the volute cavity V011 can be separated from the indoor heat exchanger 2. When the indoor heat exchanger 2 refrigerates, the indoor heat exchanger 2 can absorb the heat in the fresh air cavity V012, and the temperature of the fresh air gradually decreases. And due to the separation of the blower cover 822, the indoor heat exchanger 2 is far from the volute cavity V011, and the cooling ability of the cold generated by the indoor heat exchanger 2 to the air in the volute cavity V011 decreases, and the air in the volute cavity V011 is not easily supercooled to generate condensed water.

[0175] In this way, even if the inhaled fresh air is cooled, it will not be supercooled to generate condensed water. And even if condensed water is generated in the fresh air cavity V012, the condensed water is easy to stay in the fresh air cavity V012 and is not easy to enter the volute cavity V011 and then be blown into the room, avoiding the situation of water blowing in the fresh air module. When the indoor heat exchanger 2 heats, the indoor heat exchanger 2 can absorb the cold in the fresh air cavity V012, and the temperature of the fresh air gradually rises. Subsequently, the heated air enters the volute cavity V011 and is fully mixed, so that the hot air blown out from the fresh air module is relatively mild.

[0176] In some embodiments, refer to Figure 3 , the wall-mounted air conditioner 10000 may include: a purification member 11, refer to Figure 8, the purification component 11 is arranged in the fresh air duct V01, so that the fresh air blown into the room is purified, and the cleanliness of the indoor air is improved. Specifically, the purification component 11 is installed in the fresh air cavity V012, that is to say, the purification component 11 is located at the axial air inlet end of the fresh air fan 6. The rotation of the fresh air fan 6 can make the outdoor air enter the fresh air volute 8 from the fresh air inlet 801, and can make the outdoor air entering the fresh air volute 8 blow through the purification component 11 and then enter the room from the fresh air outlet 802.

[0177] In this way, the fresh air flow can almost vertically blow through the purification component 11, and the fresh air inlet consumption can be further reduced, thereby increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in the refrigeration state and condensing water is generated in the fresh air, the condensing water can stay on the purification component 11 when the air flows through the purification component 11, further avoiding the water blowing situation when the fresh air module blows out air.

[0178] Furthermore, the purification component 11 is connected to the second volute 82, so as to facilitate the assembly of the purification component 11 and prevent it from interfering with the fresh air fan 6.

[0179] Optionally, as Figure 15 shown, the purification component 11 includes a filter net 111, and the filter net 111 covers the axial ventilation port 8211. The filter net 111 covers the entire air inlet end of the fresh air fan 6, has a large coverage area, a large filtering area, and a good filtering effect. The setting of the filter net 111 helps to ensure sufficient contact area with the flowing air, and has a light weight and low air passing noise. Optionally, the filter net 111 is a Hepa net, so it has a strong adsorption force and a strong filtering effect on dust in the air.

[0180] Optionally, the filter net 111 is plate-shaped, so that the whole filter net 111 is relatively thin and will not occupy too much thickness when placed in the two-way ventilation component.

[0181] Optionally, the filter net 111 is square, so as to facilitate the positioning and installation of the filter net 111.

[0182] Furthermore, the filter net 111 is a square net, and the side length of the filter net 111 is greater than the diameter of the axial ventilation port 8211. The square net is convenient for positioning during fixation, is not easy to shake after fixation, and is easy to process with less processing waste. Making the side length of the filter net 111 greater than the diameter of the axial ventilation port 8211 enables all the fresh air flow entering the axial ventilation port 8211 to flow through the filter net 111, with a high filtering cleanliness.

[0183] Even further, referring to Figure 8 , a part of the fresh air cavity V012 forms an empty cavity V0121, and the cavity V0121 is located on the side of the purification component 11 away from the fresh air fan 6, and the fresh air inlet 801 communicates with the cavity V0121.

[0184] That is to say, a purification member 11 is arranged at a position in the fresh air chamber V012 close to the fresh air fan 6, and a cavity V0121 is formed in a part of the fresh air chamber V012 away from the fresh air fan 6, that is, a cavity V0121 is formed between the oncoming air of the purification member 11 and the inner surface of the fan housing 822. In this way, when the fresh air fan 6 operates, the cavity V0121 is in a negative pressure state, enabling the air flow to automatically flow into the cavity V0121 from the fresh air inlet 801, reducing the air flow resistance.

[0185] In this way, while increasing the air intake of the fresh air module, it is beneficial to the overall air intake reliability and stability.

[0186] In some embodiments, a positioning convex hull 8221 is formed on one side of the fan housing 822 facing the indoor heat exchanger 2. An end plate 31 is provided adjacent to the fan housing 822 on the base 3, and a positioning notch 311 is formed on the end plate 31. The positioning convex hull 8221 and the positioning notch 311 cooperate. That is to say, as Figure 6 shown, among the sides of the fan housing 822 facing the indoor heat exchanger 2, the part where the positioning convex hull 8221 is located is the first positioning surface F1, and the part without the positioning convex hull 8221 is the second positioning surface F2. After the positioning convex hull 8221 and the positioning notch 311 cooperate, the end plate 31 is located between the first positioning surface F1 and the second positioning surface F2.

[0187] In this way, the cooperation of the positioning convex hull 8221 and the positioning notch 311 forms the positioning of the two-way ventilation component, and can also bring the fresh air volute 8 closer to the indoor heat exchanger 2. The structure of the positioning notch 311 is not limited. For example, Figure 18 in the example shown, the positioning notch 311 is provided through in the thickness direction of the end plate 31. The positioning notch 311 is equivalent to a notch on the end plate 31. After the positioning convex hull 8221 and the positioning notch 311 cooperate, the positioning convex hull 8221 fills the notch on the end plate 31. Another example is that the positioning notch 311 is a groove on the side of the end plate 31 facing the fresh air volute 8, and the groove is not through. At this time, the positioning convex hull 8221 is equivalent to filling the groove.

[0188] After bringing the fresh air volute 8 closer to the indoor heat exchanger 2, the cold or heat of the indoor heat exchanger 2 can be absorbed by the fresh air in the fresh air volute 8, so that the blown fresh air is closer to room temperature and more gentle.

[0189] After bringing the fresh air volute 8 closer to the indoor heat exchanger 2, in some even solutions, at least part of the positioning convex hull 8221 can be at least partially overlapped with the indoor heat exchanger 2 in the transverse direction. This can reduce the overall transverse dimension and prevent the wall-mounted air conditioner 10000 from being too long.

[0190] Specifically, at least a portion of the cavity V0121 is located within the positioning convex bump 8221 , so that the positioning convex bump 8221 can be thinned and lightened, thereby improving the utilization of the internal space of the positioning convex bump 8221 .

[0191] In some embodiments, the fresh air volute 8 is further provided with an installation opening 803, and the purification element 11 can be detachably assembled in the installation opening 803. This makes it convenient to disassemble the purification element 11 when the purification element 11 is damaged or saturated, so as to facilitate maintenance or replacement.

[0192] Specifically, Figure 15 As shown, the installation opening 803 is surrounded by the fan cover 822 and the second volute half body 821, and the purification component 11 is detachably assembled in the fresh air chamber V012 through the installation opening 803. In this way, the size of the installation opening 803 can be set larger, which is convenient for installing a larger size purification component 11. When the size of the installation opening 803 is larger, the installation opening 803 is formed by the fan cover 822 and the second volute half body 821, and the fan cover 822 and the second volute half body 821 are respectively formed with open half openings, which is convenient for processing or demoulding, and the molding scrap rate is low.

[0193] Specifically, Figure 3 As shown, in the front-to-back direction of the main body, the installation port 803 is located on the front side of the main body 1000, and the purification element 11 can be free from interference from the pipes connected to the fresh air inlet 801 and the exhaust air outlet 902 when it is disassembled, so that it is convenient to operate during disassembly. Optionally, a panel that can be opened and closed (not shown in the figure) is provided on the front side of the housing 1. When the panel is opened or the panel is rotated upward, the installation port 803 can be exposed, which facilitates the disassembly of the purification element 11.

[0194] It is also possible that in some solutions, the installation opening 803 is set at the bottom of the main body 1000.

[0195] In some embodiments, Figure 6 As shown, a purified air inlet 804 for connecting to the room is formed on the fresh air volute 8, and the fresh air fan 6 rotates to allow indoor air to enter the fresh air volute 8 from the purified air inlet 804 to be purified by the purification element 11, and allows the indoor air entering the fresh air volute 8 to enter the room from the fresh air outlet 802. In this way, the indoor air can enter the fresh air duct V01 from the purified air inlet 804, be purified, and then enter the room from the fresh air outlet 802.

[0196] This arrangement can realize the circulation of indoor air when the indoor air is polluted, and purify it during the circulation. In this way, the indoor air can be purified without introducing outdoor fresh air, improving the cleanliness. Since no outdoor fresh air is introduced, the indoor air will not suddenly blow into the unheated cold or hot air from the outside during the indoor air purification, avoiding the discomfort caused by the sudden change of indoor temperature.

[0197] Specifically, in the accommodation cavity V1 within the housing 1, through internal structural cooperation, two non-ventilated first chambers V11 and second chambers V12 are formed within the accommodation cavity V1, as Figure 2 shown.

[0198] As Figure 4 shown in some specific embodiments, a end plate 31 is provided adjacent to the fresh air volute 8 on the base 3. The fresh air volute 8 and the end plate 31 cooperate to form a wind separation structure, preventing ventilation on both sides. The heat exchange fan 41 and the indoor heat exchanger 2 are located on one side of the wind separation structure, and the exhaust volute 9 with an exhaust air inlet 901 is located on the other side of the wind separation structure. This can block the air with condensed water from entering the exhaust air inlet 901.

[0199] Especially in some embodiments, an air inlet 103 of the housing 1 is provided corresponding to the exhaust volute 9. When the exhaust fan 7 rotates, indoor air can enter the accommodation cavity V1 from the air inlet 103 of the housing 1, and then enter the exhaust volute 9 from the exhaust air inlet 901. In this way, during exhaust, even when the heat exchange fan 41 is in the shutdown state, it is not easy for the exhaust fan 7 to suck away the condensed water from the indoor heat exchanger 2 when sucking air from the accommodation cavity V1.

[0200] The settings of the first chamber V11 and the second chamber V12 here can also be directly formed by the housing 1 in other embodiments. For example, a partition is integrally formed within the housing 1 to divide the accommodation cavity V1 into the first chamber V11 and the second chamber V12.

[0201] An air inlet 103 of the housing 1 is provided corresponding to the second chamber V12, and the purification air inlet 804 is located within the second chamber V12. That is to say, the purification air inlet 804 and the exhaust air inlet 901 are located on the same side of the wind separation structure. When the fresh air fan 6 rotates, indoor air can enter the second chamber V12 from the air inlet 103 of the housing 1, and then enter the fresh air volute 8 through the purification air inlet 804 for purification by the purification member 11, and the indoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802. In this way, the purification air inlet 804 can be hidden within the second chamber V12, improving the aesthetic appearance of the wall-mounted air conditioner 10000. Moreover, there is no need to connect a physical pipeline between the purification air inlet 804 and the air inlet 103 of the housing, reducing the number of parts, occupying less volume, and facilitating layout. Specifically, as Figure 6 shown, the purification air inlet 804 is located at the bottom of the fresh air volute 8 and is arranged with the direction facing downwards. It can be understood that the fresh air inlet 801 is located below the main body 1000. Both the fresh air inlet 801 and the purification air inlet 804 are located at the bottom of the fresh air volute 8 and extend in the downward direction, facilitating processing and forming. Moreover, during use, only one of them is opened. At this time, both the fresh air inlet 801 and the purification air inlet 804 are placed at the bottom of the fresh air volute 8, facilitating the centralized setting of a switch to select one of the air inlets to open, reducing the number of switches.

[0202] Further, as Figure 6 shown, the air inlet direction of the purification air inlet 804 is perpendicular to the length direction of the main body 1000. It can be understood that by making the air inlet direction of the purification air inlet 804 perpendicular to the length direction of the main body 1000, the air suction area of the purification air inlet 804 is far from the exhaust air inlet 901, avoiding excessive air suction energy consumption caused by the too-close distance between the purification air inlet 804 and the exhaust air inlet 901. Moreover, the different directions of the purification air inlet 804 and the exhaust air inlet 901 help to expand the negative pressure area, which helps a large amount of indoor air to flow into the negative pressure area, ensuring the exhaust air volume and the indoor fresh air volume.

[0203] In some alternative embodiments, as Figure 6 shown, the wall-mounted air conditioner 10000 may include: a first switching valve 12 for switching the fresh air inlet 801 and the purification air inlet 804. In this way, the fresh air inlet 801 and the purification air inlet 804 can be selectively opened and closed. The specific structure of the first switching valve 12 is not limited here.

[0204] In some embodiments, as Figure 16 shown, an indoor air outlet 903 for communicating with the room is formed on the exhaust air volute 9. When the exhaust fan 7 rotates, the indoor air entering the exhaust air volute 9 can be discharged from the indoor air outlet 903 to the room. That is to say, the exhaust module can also be set for the internal circulation of indoor air, promoting the circulation and flow of indoor air without sending the indoor air to the outside.

[0205] Optionally, as Figure 16 shown, the wall-mounted air conditioner 10000 may include: a second switching valve 15 for switching the exhaust air outlet 902 and the indoor air outlet 903. In this way, the exhaust air outlet 902 and the indoor air outlet 903 can be selectively opened and closed. The specific structure of the second switching valve 15 is not limited here.

[0206] In some embodiments, as Figure 5 and Figure 8 shown, the exhaust air volute 9 includes a wind guiding ring 91, and the area surrounded by the wind guiding ring 91 forms the exhaust air inlet 901. The setting of the wind guiding ring 91 can effectively collect the dispersed air flow, converge it into a relatively concentrated air flow and send it into the exhaust fan 7, making the air inlet smoother and more efficient, and increasing the air inlet volume of the exhaust fan 7.

[0207] Moreover, after the air guide ring 91 is reasonably designed in shape and angle, the air flow can enter the exhaust blades 72 of the exhaust fan 7 at the optimal angle, improving the working efficiency of the exhaust fan 7. When unstable air flow fluctuations are inhaled, the air guide ring 91 can stabilize the air flow, reduce the turbulence and fluctuations of the air flow, and enable the exhaust fan 7 to operate more smoothly. It can reduce noise and vibration and extend the service life of the exhaust fan 7.

[0208] Specifically, the air guide ring 91 is in the shape of a circular tube and is easy to process.

[0209] Specifically, the diameter of the air guide ring 91 gradually decreases in the direction towards the heat exchange exhaust fan 7. As the diameter of the air guide ring 91 gradually decreases, the channel for the air to flow through the air guide ring 91 becomes narrower. According to the principle of fluid mechanics, at the same flow rate, the narrowing of the channel will increase the air flow speed, thereby increasing the wind speed and the air volume. The air guide ring 91 with a gradually decreasing diameter is also conducive to concentrating the relatively dispersed air volume upstream, making the air flow directly blow towards the center of the exhaust fan 7. When the air is gathered and then radially driven by the exhaust blades 71, it is more labor-saving, and the gathered air flow is also beneficial to the stability of the air flow.

[0210] Specifically, as Figure 8 shown, the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust wheel disc 71 is connected to the motor housing 53 of the second motor 5. The exhaust blades 72 are connected to the side of the exhaust wheel disc 71 away from the heat exchange fan 41. The exhaust blades 72 are multiple and arranged circumferentially.

[0211] As Figure 8 and Figure 11 shown, the edge of the exhaust blade 72 away from the exhaust wheel disc 71 is the blade side edge 721. At least part of the blade side edge 721 is a tapered section 7212. In the direction radially inwards of the exhaust fan 7, the distance between the tapered section 7212 and the exhaust wheel disc 71 gradually decreases. All the exhaust blades 72 form a side edge depression 723 at the tapered section 7212. The end of the air guide ring 91 is located within the side edge depression 723.

[0212] That is to say, the exhaust blades 72 of the exhaust fan 7 are concave blades. The air guide ring 91 and the concave blades both concave towards the fresh air fan 6. The air guide ring 91 partially enters the side edge depression 723 formed by the concave blades. With such a setting, the air guide ring 91 and the exhaust fan 7 can have partial overlap in the axial direction, and it is not necessary to increase the axial dimension of the exhaust volute 9 on the premise of setting the air guide ring 91.

[0213] Moreover, after the exhaust fan 7 rotates, the surface swept by the exhaust blade 72 at the tapered section 7212 forms a funnel surface with a gradually decreasing diameter, which is conducive to the concentration of the air flow towards the center and reduces the energy loss caused by air flow disturbance.

[0214] In some embodiments, Figure 17 As shown, the blade side edge 721 may include: a straight section 7211, the extension direction of the straight section 7211 is perpendicular to the axis of the exhaust fan 7, and the straight section 7211 is connected to the end of the gradient section 7212 away from the axis of the exhaust fan 7. In other words, if there is no straight section 7211, the exhaust blade 72 is all gradient sections 7212, which will cause the blade size of the exhaust blade 72 to be reduced in the radial direction of the exhaust fan 7, thereby causing the wind sweeping area of ​​the blade to be reduced, that is, affecting the air volume of the exhaust fan 7. Therefore, the structure of combining the straight section 7211 and the gradient section 7212 on the exhaust blade 72 can not only ensure the air volume, but also ensure a certain space utilization rate in the axial direction of the exhaust fan 7. The exhaust blade 72 has a large axial dimension near the outer edge, which can make full use of the space in the exhaust air duct V02 to drive the air flow, which is conducive to the air flow to obtain greater kinetic energy.

[0215] Specifically, the gradient section 7212 is connected to the straight section 7211 by a circular arc transition, and the gradient section 7212 is connected to the surface of the exhaust wheel disc 71 by a circular arc transition. In this way, stress concentration is reduced and the risk of fracture is reduced at the connection between the gradient section 7212 and the straight section 7211, and the gradient section 7212 and the surface of the exhaust wheel disc 71. Moreover, the gradient section 7212 is connected to the surface of the exhaust wheel disc 71 by a circular arc transition, which can be directly opposite to the end of the air guide ring 91, reducing the risk of scratching.

[0216] In some embodiments, the revolving surfaces of the blade side edges 721 of all exhaust blades 72 overlap, and the revolving surface is the surface swept by the blade side edges 721 around the axis of the exhaust fan 7. In this way, when the airflow flows axially toward the center of the exhaust fan 7, excessive radial turbulence will not be generated due to the sweeping of individual exhaust blades 72 with inconsistent shapes, thereby improving the stability of the airflow.

[0217] Specifically, Figure 17 As shown, in the direction away from the axis of the exhaust fan 7, the axial spacing between the air guide ring 91 and the gradient section 7212 gradually increases. It is understandable that when the second motor 5 rotates to drive the exhaust fan 7 to rotate, the exhaust fan 7 will inevitably produce a small swing due to wear. When the exhaust fan 7 swings, the farther away from the axis of the exhaust fan 7, the greater the swing amplitude. Therefore, the axial spacing between the air guide ring 91 and the gradient section 7212 is gradually increased in the direction away from the axis of the exhaust fan 7, which is conducive to reducing the risk of friction caused by the exhaust fan 7 contacting the air guide ring 91 during the swing.

[0218] In some embodiments, Figure 17As shown, the axial dimension of the air guide ring 91 is Z1, which satisfies 2mm≤Z1≤12mm. It can be understood that when the axial dimension Z1 of the air guide ring 91 is less than 2mm, the flow path is too short when gathering, and the airflow enters the exhaust fan 7 before it is gathered. The gathering effect of the airflow is not obvious, and the airflow is easy to disperse. The exhaust fan 7 needs to consume more energy to introduce the dispersed airflow into the center. When the axial dimension Z1 of the air guide ring 91 is greater than 12mm, the air guide ring 91 occupies too much axial space in the exhaust volute 9, resulting in less space available to the exhaust fan 7, resulting in a reduction in the exhaust air volume. Therefore, the axial dimension Z1 of the air guide ring 91 is limited to between 2mm and 12mm, so that the air guide ring 91 gathers the airflow while ensuring that the exhaust fan 7 reaches a sufficient exhaust air volume, so as to achieve a larger exhaust air volume with lower power consumption.

[0219] Optionally, the axial dimension Z1 of the air guide ring 91 may be 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 12 mm, etc.

[0220] In some embodiments, Figure 17 As shown, the axial distance between the end of the air guide ring 91 and the exhaust blade 72 is Z2, which satisfies 1mm≤Z2≤5mm.

[0221] When the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 is less than 1mm, the exhaust blade 72 is easy to hit the air guide ring 91 during rotation, which not only generates friction loss, but also the unbalanced force on the exhaust fan 7 after the collision may cause greater shaking and lead to more serious collision. When the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 is greater than 5mm, not only is the axial gap from the end of the air guide ring 91 to the exhaust blade 72 more wasteful, but also the ungathered part of the incoming air is easy to flow into the exhaust duct V02 from the axial gap from the end of the air guide ring 91 to the exhaust blade 72. In this way, the airflow that does not do work will occupy the flow path of the airflow that does work, reducing the operating efficiency of the exhaust fan 7.

[0222] Therefore, limiting the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 to between 1 mm and 5 mm is beneficial to ensuring the operating safety of the exhaust fan 7 while ensuring the operating efficiency of the exhaust fan 7. Optionally, the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 can be 1 mm, 2.5 mm, 3 mm, 3.5 mm, 5 mm, etc.

[0223] In some embodiments, Figure 17As shown in the figure, the wall-mounted air conditioner 10000 may include: a fixing bracket 17. The fixing bracket 17 is located at the air exhaust inlet 901, and the fixing bracket 17 is connected to the air exhaust volute 9. The second motor 5 is installed on the fixing bracket 17. In this way, the fixed position of the second motor 5 has a small axial distance from the fresh air fan 6 and the air exhaust fan 7, and the bending moment borne by the second motor 5 during operation is small, which is beneficial to improving the rotational stability of the fresh air fan 6 and the air exhaust fan 7.

[0224] Specifically, as Figure 17 shown in the figure, the fixing bracket 17 includes a bracket end plate 171 and a bracket surrounding plate 172. The bracket surrounding plate 172 extends along the edge of the bracket end plate 171 in the direction towards the air exhaust fan 7. The bracket surrounding plate 172 is connected to the air exhaust volute 9. An installation cavity 174 is defined between the bracket surrounding plate 172 and the bracket end plate 171. A part of the second motor 5 is accommodated in the installation cavity 174. That is to say, the fixing bracket 17 provides the installation cavity 174 with a simple structure, which not only increases the support area for the second motor 5, that is, both the bracket end plate 171 and the bracket surrounding plate 172 can support the second motor 5, improving the installation firmness of the second motor 5, but also the installation cavity 174 can protect the electronic connector at the end of the second motor 5.

[0225] Specifically, as Figure 17 shown in the figure, a wire passing hole 173 is provided on the bracket end plate 171. The wire passing hole 173 is assembled and connected to the wire harness of the second motor 5, and the connection part of the wire harness and the second motor 5 is located in the installation cavity 174. In this way, when introducing the wire harness connected to the second motor 5 from the outside, the wire harness can be directly introduced from the side of the fixing bracket 17 away from the air exhaust fan 7. Compared with the scheme of leading the wire from other sides of the fixing bracket 17, the scheme of the present application is beneficial to reducing the length of the wire harness, avoiding the situation that the wire harness is too long and easily caught by the air exhaust fan 7, and the connection part of the wire harness and the second motor 5 is hidden in the installation cavity 174, which is not only beautiful, but also can improve the safety and reliability of this connection part, and avoid the situation that the connection part is touched by foreign objects and causes poor contact.

[0226] Furthermore, referring to Figure 5 , the wall-mounted air conditioner 10000 may include: an insulating sleeve 18. The insulating sleeve 18 is sleeved on the wire harness and connected at the wire passing hole 173. The setting of the insulating sleeve 18 enables the wire harness to be buffered and protected when connected to the wire passing hole 173, avoiding the situation that the wire harness is worn and causes electric leakage when impacted here. Moreover, the insulating sleeve 18 can seal the wire passing hole 173 to a certain extent, reduce the entry of condensed water and moisture into the installation cavity 174, and reduce the risk of the electronic connector at the end of the second motor 5 being affected by moisture and damaged.

[0227] Optionally, the projection of the fixing bracket 17 in the axial direction of the air exhaust fan 7 is located within the projection of the air exhaust volute 9 in the axial direction of the air exhaust fan 7.

[0228] Specifically, as in Figure 8 shown, at the leftmost end of the fixed bracket 17 in the axial direction is p1, and at the rightmost end is p2. At the leftmost end of the exhaust volute 9 in the axial direction is q1, and at the rightmost end is q2. Among the vertical projection points of these four positions on the axis of the exhaust fan 7, the projection point of q1 coincides with the projection point of p1, or the projection point of q1 is located to the left of the projection point of p1. The projection point of q2 coincides with the projection point of p2, or the projection point of q2 is located to the right of the projection point of p2.

[0229] With such a setting, the fixed bracket 17 does not extend beyond the exhaust volute 9 in the axial direction, and the setting of the fixed bracket 17 will not cause an increase in the additional axial dimension, which is beneficial to reducing the overall axial dimension.

[0230] In some embodiments, at least one of the fresh air fan 6 and the exhaust fan 7 includes: a wheel disc and blades connected to the wheel disc, and a transition fillet structure is provided at the connection between the blades and the wheel disc.

[0231] In some embodiments, the accommodation cavity V1 in the housing 1 forms two non-ventilated first chambers V11 and second chambers V12 through internal structure cooperation, as shown by the dotted line frame in Figure 2 shown. The indoor heat exchanger 2 and the heat exchange fan 41 are located in the first chamber V11, and at least part of the two-way ventilation component is provided in the second chamber V12. The heat exchange air inlet 101 and the heat exchange air outlet 102 on the housing 1 are correspondingly arranged for the first chamber V11. An air inlet 103 of the housing can be provided on the housing 1 to communicate with the second chamber V12. An air outlet 105 of the housing can also be provided on the housing 1 to communicate with the second chamber V12.

[0232] Specifically, an air inlet 103 of the housing is provided corresponding to the second chamber V12 on the housing 1. The rotation of the exhaust fan 7 can cause indoor air to enter the second chamber V12 from the air inlet 103 of the housing, and then enter the exhaust volute 9 from the exhaust air inlet 901.

[0233] With such a setting, the internal air flow in the second chamber V12 will not be affected by the driving of the heat exchange fan 41. The exhaust air inlet 901 can directly intake air from the second chamber V12, and there is no need for a connecting pipe between the air inlet 103 of the housing and the exhaust air inlet 901, which not only reduces the space occupied by the pipe body, but also the position of the air inlet 103 of the housing can be flexibly selected.

[0234] In the solution of the present application, a vertical partition plate can be provided in the housing 1 to separate the first chamber V11 and the second chamber V12, or the separation between the first chamber V11 and the second chamber V12 can be achieved through the fresh air volute 8 or the base 3, or the cooperation of the two.

[0235] In some embodiments, as in Figure 6 and Figure 4 、 Figure 19As shown in the figure, a positioning convex bulge 8221 is formed on one side of the fresh air volute 8 facing the indoor heat exchanger 2. An end plate 31 adjacent to the fresh air volute 8 is provided on the base 3, and a positioning notch 311 is formed on the end plate 31. The positioning convex bulge 8221 and the positioning notch 311 cooperate with each other. The positioning notch 311 penetrates through the end plate 31 along the length direction of the main body 1000. After the positioning convex bulge 8221 and the positioning notch 311 cooperate, the positioning convex bulge 8221 fills the notch on the end plate 31, thereby separating the accommodation cavity V1 into a first chamber V11 and a second chamber V12, which is convenient for separating the air inlet and outlet on both sides of the end plate 31 without interference with each other.

[0236] In some embodiments, as Figure 19 shown, the wall-mounted air conditioner 10000 may include: a bearing seat 20 provided on the base 3, and the bearing seat 20 is supported and connected to one end of the heat exchange fan 41. The positioning convex bulge 8221 and the bearing seat 20 partially overlap in the length direction of the main body 1000. That is to say, the setting of the positioning convex bulge 8221 utilizes the radial outer space of the bearing seat 20, improves the structural compactness, and can reduce the overall lateral dimension, so that the wall-mounted air conditioner 10000 will not be too long. The distance between the fresh air volute 8 and the indoor heat exchanger 2 can be reduced, and the cold or heat of the indoor heat exchanger 2 can be absorbed by the fresh air in the fresh air volute 8, so that the blown fresh air is closer to the room temperature.

[0237] Specifically, as Figure 6 and Figure 14 shown, an avoidance notch 82211 is formed at the lower rear corner of the positioning convex bulge 8221, the bearing seat 20 extends into the avoidance notch 82211, and the lower front corner of the positioning convex bulge 8221 is located on the front side of the bearing seat 20. In this way, the position of the heat exchange fan 41 is relatively close to the rear side. After there is enough space in front of the heat exchange fan 41, it is convenient for the volute tongue air duct V03 to form a diffuser air duct for the heat exchange fan 41 to increase the air supply range of the heat exchange fan 41. On this basis, the positioning convex bulge 8221 is partially located on the front side of the bearing seat 20, filling the front side space of the bearing seat 20 and improving the space utilization rate.

[0238] In some embodiments, as Figure 18 shown, the base 3 includes: a first seat frame 301 and a second seat frame 302 arranged in sequence along the length direction of the main body 1000, and the end plate 31 is located between the first seat frame 301 and the second seat frame 302. The volute tongue air duct V03 is formed on the first seat frame 301, the indoor heat exchanger 2 and the heat exchange fan 41 are installed on the first seat frame 301, and the fresh air volute 8 and the exhaust air volute 9 are installed on the second seat frame 302. That is to say, the two-way ventilation assembly is also installed on the base 3, and the above structures are supported by the base 3, and the overall integrity is strong, which helps to avoid excessive vibration caused by loose parts.

[0239] Specifically, as Figure 5 andFigure 6 As shown, at least one of the front ends of the fresh air volute 8 and the exhaust air volute 9 is provided with a first hanging ear 806, and at least one of the rear ends of the fresh air volute 8 and the exhaust air volute 9 is provided with a second hanging ear 807. The first hanging ear 806 and the second hanging ear 807 are respectively hung on the second mounting bracket 302, and the first hanging ear 806 and the second hanging ear 807 are detachably connected to the second mounting bracket 302. For example, when placing the fresh air volute 8 and the exhaust air volute 9 on the second mounting bracket 302, then hanging the first hanging ear 806 and the second hanging ear 807 on the front end and the rear end of the second mounting bracket 302 respectively, and then fixing the first hanging ear 806 and the second hanging ear 807 on the second mounting bracket 302 with mounting bolts. With such a setting, not only is the assembly easy, but even if the bolts are loose, the fresh air volute 8 and the exhaust air volute 9 are supported by the first hanging ear 806 and the second hanging ear 807 and will not fall.

[0240] Specifically, the first hanging ear 806 and the second hanging ear 807 are respectively provided with mounting holes for connecting the second mounting bracket 302, and there is an included angle between the axes of the mounting holes on the first hanging ear 806 and the second hanging ear 807. In this way, the contact surface between the first hanging ear 806 and the second mounting bracket 302 and the contact surface between the second hanging ear 807 and the second mounting bracket 302 have an included angle, realizing double-sided limit, not easy to loosen, and with higher positioning accuracy.

[0241] Specifically, as Figure 18 shown, the bottom of the second mounting bracket 302 is provided with a mating port 3021, and the lower ends of the fresh air volute 8 and the exhaust air volute 9 are located at the mating port 3021. The mating port 3021 can be used to set a pipe connecting the fresh air volute 8 and the exhaust air volute 9. This can not only greatly reduce the weight of the second mounting bracket 302, but also utilize the lower parts of the fresh air volute 8 and the exhaust air volute 9 surrounded by the second mounting bracket 302 to improve the anti-impact and anti-vibration capabilities.

[0242] In some embodiments, the wall-mounted air conditioner 10000 may include an electric control box 13, and the two-way ventilation component and the electric control box 13 are located at the transverse two ends of the heat exchange fan 41, or at the same end.

[0243] In the description of this specification, the description referring to terms such as "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0244] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A wall-mounted air conditioner (10000), comprising: A main body (1000), the main body (1000) comprising: A casing (1), wherein a receiving cavity (V1) is formed inside the casing (1), and a heat exchange air inlet (101) and a heat exchange air outlet (102) are formed on the casing (1), and in the height direction of the main body (1000), the heat exchange air inlet (101) is located above the heat exchange air outlet (102); An indoor heat exchanger (2) is arranged in the accommodating chamber (V1); A base (3) is disposed in the accommodating cavity (V1) and is provided with a volute-tongue air duct (V03); A heat exchange fan (41) is arranged in the volute-tongue air duct (V03) and is located on a side of the indoor heat exchanger (2) away from the heat exchange air inlet (101); A first motor (42) is disposed in the accommodating cavity (V1) and is located at one end in the length direction of the main body (1000), and is used to drive the heat exchange fan (41) to rotate so that air inside the air conditioner performs heat exchange with indoor space; It is characterized by further comprising: A second motor (5) is disposed in the accommodating cavity (V1), and the second motor (5) is located at the other end of the main body (1000) in the length direction; A fresh air fan (6), the fresh air fan (6) being a centrifugal fan with axial air intake and radial air discharge, the fresh air fan (6) being located on a side of the heat exchange fan (41) away from the first motor (42); an exhaust fan (7), the exhaust fan (7) being a centrifugal fan with axial air intake and radial air discharge, and in the length direction of the main body (1000), the exhaust fan (7) is located on a side of the fresh air fan (6) facing the second motor (5); Wherein, the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously when in working state; A fresh air volute (8), a fresh air duct (V01) is formed in the fresh air volute (8), the fresh air fan (6) is installed in the fresh air volute (8), and a fresh air inlet (801) and a fresh air outlet (802) are formed on the fresh air volute (8); The rotation of the fresh air fan (6) allows outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and allows outdoor air that has entered the fresh air volute (8) to enter the room from the fresh air outlet (802); An exhaust volute (9) is located on a side of the fresh air volute (8) facing the second motor (5), an exhaust air duct (V02) is formed in the exhaust volute (9), the exhaust fan (7) is installed in the exhaust volute (9), and an exhaust air inlet (901) and an exhaust air outlet (902) are formed on the exhaust volute (9); The exhaust fan (7) rotates to allow indoor air to enter the exhaust volute (9) from the exhaust air inlet (901), and to allow the indoor air entering the exhaust volute (9) to be discharged to the outdoors from the exhaust air outlet (902); Wherein, the exhaust volute (9) comprises an air guide ring (91), and the area surrounded by the air guide ring (91) forms the exhaust air inlet (901); The exhaust fan (7) comprises: an exhaust wheel disc (71) and exhaust blades (72); the exhaust wheel disc (71) is connected to the second motor (5); the exhaust blades (72) are connected to a side of the exhaust wheel disc (71) away from the heat exchange fan (41); the exhaust blades (72) are multiple and arranged in a circumferential direction; The edge of the exhaust blade (72) away from the exhaust wheel disc (71) is a blade side edge (721), and at least part of the blade side edge (721) is a gradient section (7212). In the radial inward direction of the exhaust fan (7), the distance between the gradient section (7212) and the exhaust wheel disc (71) gradually decreases, and all the exhaust blades (72) form a side edge recess (723) at the gradient section (7212); The end of the air guide ring (91) is located in the side edge recess (723).

2. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The leaf side edge (721) may include: A straight section (7211), the extension direction of the straight section (7211) is perpendicular to the axis of the exhaust fan (7), and the straight section (7211) is connected to an end of the gradient section (7212) away from the axis of the exhaust fan (7).

3. The wall-mounted air conditioner (10000) according to claim 2, characterized in that: The gradient section (7212) and the straight section (7211) are connected via a circular arc transition, and the gradient section (7212) and the surface of the exhaust wheel disc (71) are connected via a circular arc transition.

4. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The diameter of the air guide ring (91) gradually decreases in the direction toward the heat exchange fan (41).

5. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: In the radial outward direction of the exhaust fan (7), the axial distance between the air guide ring (91) and the gradient section (7212) gradually increases.

6. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The axial dimension of the air guide ring (91) is Z1, which satisfies 2mm≤Z1≤12mm.

7. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The axial distance between the end of the air guide ring (91) and the exhaust blade (72) is Z2, satisfying 1mm≤Z2≤5mm.

8. The wall-mounted air conditioner (10000) according to claim 1, characterized in that include: a fixed bracket (17), the fixed bracket (17) being located at the exhaust air inlet (901), the fixed bracket (17) being connected to the exhaust volute (9), and the second motor (5) being mounted on the fixed bracket (17); The fixed bracket (17) comprises a bracket end plate (171) and a bracket enclosure (172), wherein the bracket enclosure (172) is formed to extend along the edge of the bracket end plate (171) in the direction of the exhaust fan (7), the bracket enclosure (172) is connected to the exhaust volute (9), and an installation cavity (174) is defined between the bracket enclosure (172) and the bracket end plate (171), and a portion of the second motor (5) is accommodated in the installation cavity (174).

9. The wall-mounted air conditioner (10000) according to claim 8, characterized in that: The bracket end plate (171) is provided with a threading hole (173); the threading hole (173) is equipped with a wiring harness connected to the second motor (5), and the connection between the wiring harness and the second motor (5) is located in the installation cavity (174).

10. The wall-mounted air conditioner (10000) according to claim 9, characterized in that: This can include: An insulating sleeve (18), wherein the insulating sleeve (18) is sleeved on the wiring harness and connected to the wire threading hole (173).

11. The wall-mounted air conditioner (10000) according to claim 8, characterized in that: The projection of the fixed bracket (17) along the axial direction of the exhaust fan (7) is located within the projection of the exhaust volute (9) along the axial direction of the exhaust fan (7).

12. The wall-mounted air conditioner (10000) according to any one of claims 1 to 11, characterized in that: The second motor (5) is an outer rotor motor, and the second motor (5) comprises: stator part (51); a rotor portion (52), wherein in the radial direction of the stator portion (51), the rotor portion (52) is arranged around the outer side of the stator portion (51); A motor housing (53), wherein the motor housing (53) is fixedly connected to the rotor portion (52); An output shaft (532), the output shaft (532) being fixedly connected to the motor housing (53); The fresh air fan (6) is connected to the output shaft (532) of the second motor (5), the exhaust fan (7) is sleeved on the radial outer side of the motor housing (53), and the exhaust fan (7) is fixedly connected to the motor housing (53).

13. The wall-mounted air conditioner (10000) according to claim 12, characterized in that: The exhaust fan (7) forms a receiving groove (V07) at the center in the radial direction, and at least a portion of the stator part (51) of the second motor (5), at least a portion of the rotor part (52), and at least a portion of the motor housing (53) are accommodated in the receiving groove (V07).

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