Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a main body, the main body comprises a machine shell, 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 heat exchange fan in the length direction. 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. A stator part in the second motor is wound on the outer side of a rotor part, and the fresh air fan and the exhaust fan are both connected with an output shaft of the second motor so as to rotate synchronously. The wall-mounted air conditioner can control the length of the main body and improve the reliability on the premise of realizing bidirectional air exchange.

Description

Technical Field

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

[0002] With the progress of technology and the improvement of people's living standards, air conditioners have gradually entered people's lives and become an indispensable item in people's work and life.

[0003] An air conditioner includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are respectively installed indoors and outdoors, and the two are connected by corresponding pipelines and wires. Generally, in order to improve indoor air quality, the air conditioner also has a fresh air device and an exhaust device for ventilation. However, in the existing technical solutions, multifunctional air conditioners are often bulky. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the related art. To this end, some embodiments of the present disclosure provide a wall-mounted air conditioner that can control the length dimension of the main body while realizing simultaneous exhaust and intake of indoor air.

[0005] The wall-mounted air conditioner according to an embodiment of the present disclosure includes a main body.

[0006] The main body includes: a housing, an accommodation cavity is formed inside the housing, and a heat exchange air inlet and a heat exchange air outlet are formed on the housing; a base, disposed in the accommodation cavity, on which a volute tongue air duct is formed; a heat exchange fan, disposed in the volute tongue air duct, so as to suck indoor air into the volute tongue air duct through the heat exchange air inlet when rotating, and blow the air in the volute tongue air duct to the indoor through the heat exchange air outlet; a first motor, disposed in the accommodation cavity and located at one end in the length direction of the heat exchange fan, for driving the heat exchange fan to rotate.

[0007] The main body further includes: a second motor, disposed in the accommodation cavity, and the second motor is located at the other end in the length direction of the heat exchange fan.

[0008] The second motor includes: a rotor part; a stator part, which is disposed around the outside of the rotor part in the radial direction of the rotor part; an output shaft, and the output shaft is fixedly connected to the rotor part.

[0009] The main body further includes: a fresh air fan, the fresh air fan is a centrifugal fan with axial intake and radial exhaust, the fresh air fan is located on the side of the heat exchange fan away from the first motor, and the fresh air fan is fixedly connected to the output shaft of the second motor. Wherein, the fresh air fan is located between the second motor and the heat exchange fan.

[0010] The main body further includes: an exhaust fan, which is a centrifugal fan with axial air intake and radial air outlet. 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, and the exhaust fan is fixedly connected to the output shaft of the second motor. Among them, the fresh air fan (6) is located between the exhaust fan (7) and the heat exchange fan (41), and the second motor drives the fresh air fan and the exhaust fan to rotate synchronously in the working state.

[0011] The main body 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.

[0012] The main body 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.

[0013] The wall-mounted air conditioner according to some embodiments of the present disclosure can control the length dimension of the main body while realizing simultaneous exhaust and intake of air in the room.

[0014] By adopting a motor structure in which the stator part is wound around the outside of the rotor part for the second motor, not only is the motor structure simple, the output power is high, but also the structure is compact, the dynamic balance is good, and the control precision is high. Therefore, for a motor with this structure under a certain power, a small-size model can be selected, which is beneficial to reducing the occupancy of the flow channel space by the second motor.

[0015] 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. For example, 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 air from the room is less, and the loss of cold or heat discharged to the outside is less.

[0016] Setting the fresh air fan on the side of the exhaust fan facing the indoor heat exchanger can also reduce the entry of condensed water into the air duct when the indoor heat exchanger is refrigerating. It reduces the risk of water accumulation and bacteria breeding in the exhaust duct and the fresh air duct, and reduces 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 needs to consume is also lower.

[0017] Some additional aspects and advantages of the present disclosure will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present disclosure. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 Stereogram of the main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0020] Figure 2 Front view of the main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0021] Figure 3 Stereogram of the interior of the main body in one direction according to some embodiments;

[0022] Figure 4 Stereogram of the interior of the main body in another direction according to some embodiments;

[0023] Figure 5 Stereogram of a two-way ventilation component in one direction according to some embodiments;

[0024] Figure 6 Stereogram of a two-way ventilation component in another direction according to some embodiments;

[0025] Figure 7 Side view of a two-way ventilation component according to some embodiments;

[0026] Figure 8 Cross-sectional view of a two-way ventilation component according to some embodiments;

[0027] Figure 9 For Figure 8 a partial enlarged view of;

[0028] Figure 10 Cross-sectional view of a second motor according to some embodiments;

[0029] Figure 11 Assembly diagram of an exhaust fan and a second motor according to some embodiments;

[0030] Figure 12 Stereogram of a fresh air fan according to some embodiments;

[0031] Figure 13 Side view of a fresh air fan according to some embodiments;

[0032] Figure 14 Exploded view of a second motor, a fresh air fan, an exhaust fan, and a first volute according to some embodiments;

[0033] Figure 15Exploded view of the two-way ventilation component in another direction according to some embodiments;

[0034] Figure 16 Stereoscopic view of the two-way ventilation component according to some embodiments;

[0035] Figure 17 Partial sectional schematic view of the two-way ventilation component according to some embodiments;

[0036] Figure 18 Stereoscopic view of the base according to some embodiments;

[0037] Figure 19 Front view of the main body of the wall-mounted air conditioner (part of the casing is hidden in the figure);

[0038] Figure 20 Stereoscopic view of the casing in the rear view direction according to some embodiments.

[0039] Reference numerals:

[0040] Wall-mounted air conditioner 10000, main body 1000,

[0041] Casing 1, accommodation cavity V1, first chamber V11, second chamber V12,

[0042] 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,

[0043] Indoor heat exchanger 2,

[0044] Base 3, volute tongue air duct V03, end plate 31, positioning notch 311,

[0045] Heat exchange fan 41, first motor 42,

[0046] Second motor 5, stator part 51, rotor part 52, output shaft 532,

[0047] Fresh air fan 6, fresh air wheel disc 61, wheel disc holes 612, fresh air blades 62, first fresh air blade 621, second fresh air blade 622, fresh air convex part 64, fresh air accommodation groove V08, fresh air connecting shaft sleeve 67,

[0048] Exhaust fan 7, exhaust accommodation groove V07, exhaust wheel disc 71, exhaust blades 72, blade side edge 721, straight section 7211, tapered section 7212, exhaust convex part 74, exhaust connecting shaft sleeve 77,

[0049] Fresh air volute 8, fresh air duct V01, volute cavity V011, new

[0050] Air cavity V012, cavity V0121, fresh air inlet 801, fresh air outlet 802, installation port 803, purification air inlet 804, fresh air grille 808,

[0051] First volute 81, first volute end plate 811, first volute shroud 812, recessed part 813, perforated part 814,

[0052] Second volute 82, second volute half body 821, axial ventilation port 8211, fan cover 822, positioning boss 8221, avoidance notch 82211, first positioning surface F1, second positioning surface F2,

[0053] Exhaust volute 9, exhaust air duct V02, exhaust air inlet 901, exhaust air outlet 902, indoor exhaust air outlet 903, second volute shroud 906, air guide ring 91,

[0054] Purification component 11, filter net 111, first switching valve 12, 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 connecting plate 172, wire passing hole 173, installation cavity 174, bracket support ring 175, insulating sleeve 18, expansion pipe 19. Detailed implementation mode

[0055] The embodiments will be described in detail below. Examples of the embodiments are shown in the 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 drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "center", "transverse", "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 drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. 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 invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0056] It should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. 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 situations.

[0057] In some embodiments, a wall-mounted air conditioner 10000 is proposed, which 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.

[0058] The following describes the wall-mounted air conditioner 10000 according to an embodiment of the present utility model with reference to the drawings.

[0059] 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.

[0060] 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 shape structure of the wall-mounted air conditioner 10000.

[0061] Referring to Figure 3 and Figure 4 , the main body 1000 further includes: an indoor heat exchanger 2, which is disposed in the accommodation cavity V1.

[0062] Referring to Figure 3 and Figure 4 , the main body 1000 further includes: a base 3, and the base 3 is 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, and after the indoor air enters the housing 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 small.

[0063] Referring to Figure 4, the main body 1000 further includes: a heat exchange fan 41, which is disposed in the volute tongue air duct V03. In some embodiments, 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 velocity 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 ensure that the driven air flow can 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.

[0064] Referring to Figure 4 , the main body 1000 further includes: a first motor 42, which is disposed in the accommodation cavity V1. The first motor 42 is used to drive the heat exchange fan 41 to rotate, so that the air can exchange heat between the interior of the air conditioner and the indoor space.

[0065] By providing a heat exchange air outlet 102 and a heat exchange air inlet 101 on the housing 1, when the heat exchange fan 41 operates, the indoor air is sucked into the housing 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 through the heat exchange air outlet 102.

[0066] In some embodiments, 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 is convenient for 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.

[0067] Referring to Figure 1 and Figure 2 , the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the heat exchange air inlet 101 can intake air from above, so as to avoid intake air from the heat exchange air outlet 102, and avoid the heat-exchanged air being directly sucked into the heat exchange air inlet 101 after being blown out from the heat exchange air outlet 102, reducing the process of the heat-exchanged air idling without participating in indoor heat exchange.

[0068] In some specific embodiments, the heat exchange air inlet 101 is located at the top of the housing 1, that is, in an area that is not visible to the user, hiding the heat exchange air inlet 101 can improve the appearance beauty.

[0069] In some embodiments, the heat exchange air outlet 102 is located in the front of the housing 1, or the heat exchange air outlet 102 is located on the front side of the housing 1 and close to the bottom. In some embodiments, 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.

[0070] In some embodiments, such as Figure 4As shown, the first motor 42 is located at one end of the heat exchange fan 41 in the length direction. This facilitates the installation and maintenance of the first motor 42, and the overall body 1000 does not need to become too high or thick due to the setting of the first motor 42. Here, the height direction of the body 1000 is consistent with the up and down direction, and the thickness direction of the body 1000 is consistent with the front and back direction.

[0071] In some embodiments, the wall-mounted air conditioner 10000 further includes a second motor 5 (as Figure 8 shown), the second motor 5 is disposed in the accommodation cavity V1, and the second motor 5 is located at the other end of the heat exchange fan 41 in the length direction. The first motor 42 and the second motor 5 are located at both ends of the heat exchange fan 41 in the length direction. The two motors are far apart and have little electromagnetic interference with each other. The two motors and the heat exchange fan 41 are arranged along the length direction of the body 1000, rather than in the thickness or height direction of the body 1000, making the shape of the body 1000 of the wall-mounted air conditioner 10000 slender and the appearance delicate.

[0072] Specifically, 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.

[0073] 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, the magnetic leakage loss can be reduced, the 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 ability is good, and the mechanical precision is higher.

[0074] In the radial direction of the rotor portion 52, the stator portion 51 is disposed around the outside of the rotor portion 52. The selected motor of the second motor 5 not only has a simple motor structure, a higher output power, but also has a compact structure, good dynamic balance, and high control precision. Therefore, when selecting this type of motor under a certain power, a small-size model can be selected, which is beneficial to reducing the occupation of the second motor 5 on the flow channel space.

[0075] Referring to Figure 10 , the second motor 5 further includes: an output shaft 532, and the output shaft 532 is fixedly connected to the rotor portion 52. Specifically, the output shaft 532 extends along the axial direction of the second motor 5 toward the side of the heat exchange fan 41. That is to say, the main part of the second motor 5 is separated from the heat exchange fan 41 by a certain distance, reducing the vibration transmitted from the operation of the second motor 5 to the heat exchange fan 41.

[0076] Referring 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 intake 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 main body of the second motor 5, and the fresh air fan 6 is fixedly connected to the output shaft 532 of the second motor 5. That is to say, the fresh air fan 6 and the output shaft 532 of the second motor 5 rotate synchronously, and there is no rotational movement between them. Of course, the fresh air fan 6 and the output shaft 532 of the second motor 5 can be detachably connected or non-detachably connected, which is not limited here.

[0077] Among them, the fresh air fan 6 is located between the second motor 5 and the heat exchange fan 41.

[0078] 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 intake and radial air outlet, in the length direction of the heat exchange fan 41, the exhaust fan 7 is located on the side of the fresh air fan 6 facing the second motor 5, and the exhaust fan 7 is fixedly connected to the output shaft 532 of the second motor 5. That is to say, the exhaust fan 7 and the output shaft 532 of the second motor 5 rotate synchronously, and there is no rotational movement between them. Of course, the exhaust fan 7 and the output shaft 532 of the second motor 5 can be detachably connected or non-detachably connected, which is not limited here.

[0079] Among them, the fresh air fan 6 is located between the exhaust fan 7 and the heat exchange fan 41, and the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously in the working state.

[0080] The characteristics of the centrifugal fan itself include a compact structure, a large air volume, and a high static pressure obtained. It can pass through a long pipeline or a duct with many bends to ensure that enough pressure can be provided to ensure the smooth delivery of air. Therefore, smaller-sized centrifugal fans can be selected for the fresh air fan 6 and the exhaust fan 7 to meet the large air volume requirements.

[0081] 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.

[0082] Specifically, the fresh air fan 6 intakes air axially and discharges air radially, the exhaust fan 7 intakes air axially and discharges air radially, the fresh air fan 6 and the exhaust fan 7 intake air from the two ends away from each other, and then the fresh air and the exhaust air are both discharged radially after being driven. The flow paths of the fresh air and the exhaust air do not need to overlap axially, and the paths 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.

[0083] 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.

[0084] Referring 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 inlet 901 and an exhaust 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 inlet 901, and the indoor air entering the exhaust volute 9 can be discharged to the outside from the exhaust outlet 902.

[0085] In some embodiments, the fresh air volute 8 and the fresh air fan 6 constitute a fresh air module. The fresh air fan 6 is disposed inside the fresh air duct V01 and is used to drive 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 flow. Thus, by setting the cooperation of the fresh air duct V01 and the fresh air fan 6, when the air in the room is relatively dirty or the air quality is average, the relatively fresh outdoor air can be driven into the indoor environment by the fresh air fan 6 to improve the indoor air flow environment.

[0086] In some embodiments, the exhaust volute 9 and the exhaust fan 7 constitute an exhaust module. The exhaust fan 7 is disposed inside the exhaust duct V02 and is used to drive air flow to be inhaled from the exhaust inlet 901 and discharged from the exhaust outlet 902 out of the room. The operation of the exhaust fan 7 provides the power for the dirty air flow.

[0087] The second motor 5, the fresh air fan 6, the exhaust fan 7, the fresh air volute 8 and the exhaust volute 9 constitute a two-way ventilation component, and the two-way ventilation component is disposed inside the main body 1000. The two-way ventilation component can provide fresh air for the room and can discharge the indoor air to the outside.

[0088] 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 operate in the fresh air mode and the exhaust mode simultaneously, that is, the fresh air duct V01 and the exhaust duct V02 can be opened simultaneously. While the dirty air flow in the room flows to the outdoor space, the fresh air flow outside can also enter the indoor space through a combination of one-in and one-out air flow driving.

[0089] Moreover, while exhausting indoor air to the outside, fresh outdoor air is supplied to the indoor, keeping the indoor air volume sufficient and making it easier to suck out indoor air. For example, when there are irritating gases (such as gases released by home decoration materials), gas leakage or other gas leakage indoors, the two-way ventilation component can be set to operate the fresh air mode and the exhaust mode simultaneously to achieve rapid ventilation. And compared with the design of simply introducing fresh air in the conventional fresh air structure, this two-way ventilation component has a larger purification flow rate per unit time, higher ventilation efficiency and faster purification effect.

[0090] During ventilation, it is avoided that the indoor temperature changes violently like directly opening a window, which may cause discomfort to indoor personnel due to sudden temperature rise or fall. Moreover, the position of the main body 1000 is relatively high, and the ventilation position will not cause discomfort because it is too close to people.

[0091] In some other embodiments, the two-way ventilation component can alternatively operate 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. At this time, only the fresh air duct V01 is ventilated, and the exhaust duct V02 is not ventilated. Or when the two-way ventilation component turns on the exhaust mode, the fresh air mode is shut down. At this time, the fresh air duct V01 is not ventilated, and the exhaust duct V02 is ventilated.

[0092] In some embodiments, a two-way ventilation component is provided in the wall-mounted air conditioner 10000, such 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.

[0093] Since the two-way ventilation component needs to be provided in the wall-mounted air conditioner 10000, and the wall-mounted air conditioner 10000 has size limitations and weight limitations due to being hung on the wall. To avoid excessive increase in the size and weight of the wall-mounted air conditioner 10000 after adding the two-way ventilation component, many restrictions and optimizations are carried out in the design of the two-way ventilation component in this application, so that the designed wall-mounted air conditioner 10000 has practical use and promotion value.

[0094] In this embodiment, the second motor 5 is located at the end of the heat exchange fan 41 in the length direction, and the axial direction of the second motor 5 is arranged along the length direction of the heat exchange fan 41. The second motor 5 is the common power source for the fresh air module and the exhaust module of the two-way ventilation component. To ensure the operation of the fresh air module and the exhaust module, the second motor 5 needs to have sufficient operating power to drive sufficient air volume to flow. Based on the power requirement of the second motor 5, the second motor 5 needs to have a sufficiently large size.

[0095] In this embodiment, on the premise that the dimensional 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, which not only saves the number of motors, but also keeps the two centrifugal fans arranged in an axial stack along the second motor 5, that is, the two centrifugal fans are arranged in an axial stack along the length direction of the main body 1000.

[0096] 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 are stacked in this way, which can 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 there is no 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 relatively close.

[0097] 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.

[0098] 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 cooling loss can be reduced. Therefore, the second motor 5 occupies the space of the exhaust air duct V02, leaving more fresh air ducts V01, which is beneficial to ensuring a larger fresh air volume.

[0099] In this embodiment, the fresh air module and the exhaust air module are effectively integrated, enabling the two modules to reasonably utilize their respective structural and space characteristics to complete the flat design. Not only does it reduce the overall size and weight of the two-way ventilation component, making the two-way ventilation component as a whole light and the air ducts not interfering with each other. The two-way ventilation component is arranged at one end in the length direction of the heat exchange fan 41. 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 little, making the shape of the main body 1000 as flat as possible. When hanging on the wall, it will not affect the indoor space layout due to being too obtrusive, and will not 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 flat model, which is not only beautiful when hanging on the wall, but also has controllable weight.

[0100] In some embodiments, 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 inlet pipe 141 (such as Figure 2As shown). The fresh air intake pipe 141 can be a component of the wall-mounted air conditioner 10000 or a fresh air intake pipe 141 separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0101] By setting the fresh air inlet 801 below the main body 1000, the fresh air intake pipe 141 can be connected to the fresh air inlet 801 from below. The connection part extends generally in the vertical direction instead of in the front-rear direction to make the main body 1000 too thick, so that the wall-mounted air conditioner 10000 can still maintain a flat shape. 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 of the bottom of this circle. This part of the space can be used to set the fresh air inlet 801 to connect the fresh air intake pipe 141. Thus, the connection part between the fresh air intake pipe 141 and the fresh air inlet 801 can be placed in this free space without occupying additional space, so as to control the height dimension of the main body 1000.

[0102] In some embodiments, 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 component of the wall-mounted air conditioner 10000 or an exhaust air outlet pipe 142 separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0103] By setting the exhaust air outlet 902 below the main body 1000, the exhaust air outlet pipe 142 can be connected to the exhaust air outlet 902 from below. The connection part extends generally in the vertical direction instead of in the front-rear direction to make the main body 1000 too thick, so that the wall-mounted air conditioner 10000 can still maintain a flat shape. 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 of the bottom of this circle. And based on the characteristics of the axial air intake 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. Here, the exhaust air outlet 902 is set 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 as to control the height dimension of the main body 1000.

[0104] In some embodiments, such as Figure 8 and Figure 9As shown, the exhaust fan 7 includes an exhaust connection shaft sleeve 77 at the center, and the exhaust connection shaft sleeve 77 extends along the axial direction of the exhaust fan 7. The exhaust connection shaft sleeve 77 is externally sleeved and connected to the output shaft 532, and one end of the exhaust connection shaft sleeve 77 is located in the fresh air duct V01 and abuts against the fresh air fan 6.

[0105] Specifically, a perforated portion 814 is provided on the side wall of the fresh air volute 8 facing the exhaust volute 9, and one end of the exhaust connection shaft sleeve 77 passes through the perforated portion 814 and extends into the fresh air duct V01.

[0106] The arrangement of the exhaust connection shaft sleeve 77 on the exhaust fan 7, on the one hand, increases the contact area with the output shaft 532 and improves the driving ability of the output shaft 532 to drive the exhaust fan 7 during rotation. On the other hand, the relatively long exhaust connection shaft sleeve 77 can be used to achieve positioning with the fresh air fan 6 and reduce the positioning difficulty.

[0107] As Figure 9 shown, the fresh air fan 6 includes a fresh air connection shaft sleeve 67 at the center. The fresh air connection shaft sleeve 67 extends along the axial direction of the fresh air fan 6, and the fresh air connection shaft sleeve 67 is externally sleeved and connected to the output shaft 532. The arrangement of the fresh air connection shaft sleeve 67 on the fresh air fan 6, on the one hand, increases the contact area with the output shaft 532 and improves the driving ability of the output shaft 532 to drive the fresh air fan 6 during rotation. On the other hand, the relatively long fresh air connection shaft sleeve 67 can be used to achieve axial positioning and reduce the positioning difficulty.

[0108] Furthermore, the two-way ventilation assembly further includes a locking nut. The locking nut is threadedly connected to the output shaft 532 and abuts against the fresh air connection shaft sleeve 67, thereby realizing the axial positioning of the fresh air fan 6 and the exhaust fan 7.

[0109] In some embodiments, as Figure 8 and Figure 9 shown, an exhaust accommodation groove V07 is formed at the center of the exhaust fan 7 in the radial direction, and at least a part of the stator portion 51 and at least a part of the rotor portion 52 of the second motor 5 are accommodated in the exhaust accommodation groove V07. Specifically, the hub of the exhaust fan 7 forms the exhaust accommodation groove V07.

[0110] Moreover, the hub of the exhaust fan 7 sleeved outside the main body of the second motor 5 has a protective effect, and can also make the center of mass of the exhaust fan 7 as close as possible to the center of the rotor portion 52. Thus, the bending moment generated by the exhaust fan 7 on the second motor 7 is small, the exhaust fan 7 shakes little during rotation, the exhaust fan 7 operates stably and has low energy consumption.

[0111] In some embodiments, the outer diameter D1 of the fresh air fan 6 is greater than the outer diameter D2 of the exhaust fan 7 to ensure that the fresh air volume is greater than the exhaust air volume.

[0112] Adaptively, the fresh air volute 8 includes a first volute enclosure plate 812 surrounding the radially outer side of the fresh air fan 6, and the exhaust volute 9 includes a second volute enclosure plate 906 surrounding the radially outer side of the exhaust fan 7. The diameter of the first volute enclosure plate 812 is greater than that of the second volute enclosure plate 906. This can make the component parts compact and reduce the overall occupied space.

[0113] Moreover, more space can be vacated on the radially outer side of the second volute enclosure plate 906, enabling air to flow in the space on the radially outer side of the exhaust volute 9 inside the casing 1. In this way, when the exhaust volute 9 sucks in air from the exhaust air inlet 901, more air can enter, which is beneficial to increasing the exhaust air intake volume.

[0114] Further, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000, and 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 to reducing the overall size.

[0115] In some embodiments, as Figure 1 shown, a casing air outlet 105 is provided on the casing 1, and the casing air outlet 105 is arranged corresponding to the fresh air outlet 802. As Figure 3 and Figure 19 shown, the wall-mounted air conditioner 10000 may include: an expansion pipe 19 connected between the casing air outlet 105 and the fresh air outlet 802, and the flow-through area of the expansion pipe 19 gradually increases in the direction towards the casing air outlet 105. That is to say, the expansion pipe 19 enables the fresh air to undergo a further pressure boosting process, thereby further increasing the fresh air pressure and further expanding the air supply range.

[0116] 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 be no excessive interference with the expansion pipe 19 after connecting the pipes.

[0117] In some embodiments, as Figure 11 shown, on the exhaust fan 7, the total axial thickness of the exhaust wheel disc 71 and the exhaust blades 72 is h2, and as Figure 12 shown, on the fresh air fan 6, the total axial thickness of the fresh air wheel disc 61 and the fresh air blades 62 is h1, where h2 < h1. With such an arrangement, while ensuring that the fresh air volume is greater than the exhaust air volume, the main body part of the fresh air fan 7 has a greater axial thickness, so that the structural strength is greater and it can bear a greater torque. And the exhaust air volume requirement of the exhaust fan 7 is small, and the smaller axial thickness of the main body part can appropriately reduce the exhaust air volume and at the same time reduce the axial dimension of the two-way ventilation component.

[0118] In some embodiments, asFigure 10 As shown, the total thickness of the stator part 51 and the rotor part 52 in the axial direction 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 of the exhaust wheel disc 71 and the exhaust blades 72 in the axial direction 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 of the stator part 51 and the rotor part 52 in the axial direction is set to be greater than the axial thickness of the main part of the exhaust fan 7, ensuring that the second motor 5 can support the rotation of the two fans and providing sufficient supporting force for the second motor 5.

[0119] Among them, as Figure 14 shown, the exhaust fan 7 may include an exhaust protrusion 74 provided on the exhaust wheel disc 71, and the exhaust protrusion 74 extends in the direction towards the fresh air fan 6 relative to the exhaust wheel disc 71, so that an exhaust accommodation groove V07 for the second motor 5 is formed on the side of the exhaust protrusion 74 close to the second motor 5. At least a part of the stator part 51 and at least a part of the rotor part 52 are accommodated in the exhaust accommodation groove V07. In this way, on the one hand, the exhaust wheel disc 71 with the exhaust blades 72 can be positioned as much as possible to coincide with the main part of the second motor 5 in the axial direction. When the axial thickness dimensions of the exhaust wheel disc 71 and the exhaust blades 72 are relatively small while the axial thickness dimension of the main part of the second motor 5 is relatively large, the space is fully utilized to arrange the main part of the second motor 5.

[0120] In some embodiments, the total thickness of the stator part 51 and the rotor part 52 in the axial direction is h3, and the total thickness of the fresh air wheel disc 61 and the fresh air blades 62 on the fresh air fan 6 in the axial direction is h1, and 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.

[0121] 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 towards the direction away from the fresh air fan 6. This can simplify the structure of the exhaust fan 7 and fully utilize the space on the windward side of the exhaust fan 7.

[0122] 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.

[0123] 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 in the direction of the heat exchange fan 41.

[0124] Wherein, a central partial area of the first volute end plate 811 forms a recess 813 facing into the fresh air fan 6. A perforated portion 814 is provided at the center of the recess 813. At least a part of the exhaust protrusion 74 is located in the recess 813, and the output shaft 532 is connected to the fresh air fan 6 through the perforated portion 814.

[0125] In some embodiments, the fresh air volute 8 is at least axially divided into the first volute 81 and the second volute 82 for separate processing, which can reduce the manufacturing and assembly difficulty. Moreover, for such a complex housing, separate manufacturing facilitates quality control. The detachable connection between the first volute 81 and the exhaust volute 9 and the detachable connection between the second volute 82 and the first volute 81 are convenient for assembly and subsequent adjustment and maintenance.

[0126] An exhaust protrusion 74 is provided at the center of the exhaust wheel disc 71, and a recess 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 exhaust protrusion 74 to accommodate the main body part of the second motor 5, and the exhaust protrusion 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 exhaust protrusion 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 fresh air and exhaust air flowing into each other, and reduces air flow disturbance.

[0127] Specifically, 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. Among them, the fresh air fan 6 may include a fresh air protrusion 64 provided on the fresh air wheel disc 61, and the fresh air protrusion 64 extends in the direction of the heat exchange fan 41 relative to the fresh air wheel disc 61, so that a fresh air accommodation groove V08 is formed on the side of the fresh air protrusion 64 close to the second motor 5. At least a part of the recess 813 is accommodated in the fresh air accommodation groove V08. With this arrangement, the main body part of the second motor 5 can occupy part of the space of the fresh air duct V01. With this arrangement, when the model and size of the second motor 5 are fixed, the exhaust fan 7 and the fresh air fan 6 can be arranged more compactly. The exhaust fan 7, the fresh air fan 6 and the second motor 5 as a whole occupy a smaller axial dimension space, and the overall shape of the two-way ventilation assembly is relatively thin, so that the overall length of the main body 1000 is not large.

[0128] In some embodiments, in order to make the wall-mounted air conditioner 10000 more safe and reliable, the overall 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 to be 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 appearing thinner and lighter visually.

[0129] When controlling the size of the main body 1000, the key is how to reduce the structural size of the two-way ventilation assembly. Among the two-way ventilation assembly, it is necessary to ensure first 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 second motor 5 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 second motor 5 in the axial direction is greater than the axial thickness h2 of the main body part of the exhaust fan 7.

[0130] After the second motor 5 occupies a certain thickness dimension, in order to prevent the structural dimension of the two-way ventilation component from expanding excessively, when optimizing the exhaust fan 7, an exhaust protrusion 74 is provided at the center of the exhaust wheel disc 71. The exhaust protrusion 74 extends in the direction of the fresh air fan 6 relative to the exhaust wheel disc 71, so that an exhaust accommodation groove V07 for the second motor 5 is formed on the side of the exhaust protrusion 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 exhaust accommodation groove V07. And a central partial area of the first volute end plate 811 of the first volute 81 is formed into a recess 813 facing the inside of the fresh air fan 6, so that at least a part of the exhaust protrusion 74 is located in the recess 813. A fresh air protrusion 64 protruding toward the heat exchange fan 41 is formed in the central partial area of the fresh air wheel disc 61. A fresh air accommodation groove V08 is formed on the side of the fresh air protrusion 64 close to the second motor 5. At least a part of the recess 813 is accommodated in the fresh air accommodation groove V08.

[0131] With such a setting, it is also beneficial to reduce the distance between the main body 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 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 moves, the coaxiality of the fresh air fan 6 and the exhaust fan 7 is relatively high, and it is not easy to shake, which can avoid abrasion and vibration caused by friction with the volute.

[0132] 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 there to be no need for an interval gap 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 flat design of the wall-mounted air conditioner 10000.

[0133] 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.

[0134] 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 output shaft 532 of the second motor 5. There are multiple exhaust blades 72, and the exhaust blades 72 are arranged on the exhaust wheel disc 71 and only extend in a direction away from the fresh air fan 6. 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 structure of the exhaust fan 7 is simple and the cost is low. Moreover, the blade cylinder formed by arranging the exhaust blades 72 circumferentially is open towards the axial air inlet end, which is convenient for air flow to be inhaled, reduces the air suction resistance, and ensures the air intake volume of the exhaust.

[0135] In some embodiments, referring to Figure 8 , Figure 12 and Figure 14 , the fresh air wheel disc 61 is coaxially arranged with the second motor 5 and is connected to the output shaft 532 of the second motor 5. The fresh air blades 62 include first fresh air blades 621, and the first fresh air blades 621 extend from the fresh air wheel disc 61 in a direction away from the exhaust fan 7. The blade cylinder formed by arranging the first fresh air blades 621 circumferentially is open towards the axial air inlet end, which is convenient for air flow to be inhaled, reduces the air suction resistance, and ensures the air intake volume of the fresh air.

[0136] Specifically, referring to Figure 8 , Figure 12 and Figure 14 , the fresh air blades 62 may include second fresh air blades 622, and the second fresh air blades 622 extend from the fresh air wheel disc 61 in a direction close to the exhaust fan 7. In this way, the fresh air fan 6 includes double-layer centrifugal blades. In this way, when meeting the requirement of large air volume, the structural design of the double-layer centrifugal blades helps to increase the overall structural strength of the centrifugal fan.

[0137] Further, in the axial direction of the fresh air fan 6, the length h12 of the second fresh air blade 622 is less than the length h11 of the first fresh air blade 621. Here, the first fresh air blade 621 faces the axial air inlet end, so the axial length of the first fresh air blade 621 is larger, which is beneficial to obtaining a larger fresh air intake volume by using the first fresh air blade 621. And by using the shorter second fresh air blade 622, the supplement of the fresh air intake is realized. Moreover, the first fresh air blade 621 on the windward side is longer, which is beneficial to reducing noise while ensuring the fresh air volume.

[0138] More specifically, the fresh air blade 62 includes a first fresh air blade 621 and a second fresh air blade 622. The first fresh air blade 621 extends from the fresh air wheel disc 61 in a direction away from the exhaust fan 7, and the second fresh air blade 622 extends from the fresh air wheel disc 61 in a direction close to the exhaust fan 7. Among them, in the radial direction of the fresh air fan 6, a plurality of second fresh air blades 622 are arranged around the outside of the recess 813. With this setting, the second fresh air blade 622 and the recess 813 at least partially coincide axially, so that the space outside the radial direction of the recess 813 can be utilized, further improving the compactness of the component arrangement and reducing the axial dimension of the two-way ventilation assembly.

[0139] In some specific embodiments, referring to Figure 17 , in the axial direction of the fresh air fan 6, the length h12 of the second fresh air blade 622 is less than the length L2 of the recess 813. Here, the length L2 of the recess 813 refers to the length of the vertical projection of the recess 813 on the axis of the fresh air fan 6. Such a setting is to limit the axial length of the second fresh air blade 622, so that the second fresh air blade 622 avoids occupying too much axial space during arrangement, and improves the space utilization rate.

[0140] Furthermore, as shown in Figure 12 and Figure 13 , a wheel disc hole 612 is formed on the fresh air wheel disc 61 for the second fresh air blade 622 to suck air through the wheel disc hole 612 on one side. The distance from the wheel disc hole 612 to the center of the fresh air wheel disc 61 is less than the distance from the fresh air blade 62 to the center of the fresh air wheel disc 61. That is to say, the wheel disc hole 612 is closer to the center of the fresh air wheel disc 61 than the fresh air blade 62. This is beneficial for the second fresh air blade 622 to guide the air flow to be sucked axially into the space where the second fresh air blade 622 is located when sucking air from the wheel disc hole 612, and reduces the turbulent flow generated by competing for air with the first fresh air blade 621.

[0141] 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 fan 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 faces the axial ventilation port 8211. The second volute half 821 and the first volute 81 enclose a fresh air outlet 802.

[0142] The blower housing 822 is located on the side of the second volute half 821 facing the heat exchange fan 41, and the blower housing 822 is detachably connected to the second volute half 821. Refer to Figure 8 , the cavity enclosed by the blower housing 822 and the second volute half 821 is the fresh air cavity V012, and the blower housing 822 and the second volute half 821 define a fresh air inlet 801.

[0143] After such a setting, 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 axially from the fresh air cavity V012, thereby improving the air suction efficiency of the fresh air fan 6 and reducing the air suction loss.

[0144] Among them, the blower housing 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, gradually reducing the fresh air temperature. And with the separation of the blower housing 822, the indoor heat exchanger 2 is far from the volute cavity V011, and the ability of the indoor heat exchanger 2 to cool the air in the volute cavity V011 decreases, and the air in the volute cavity V011 is not easily supercooled to produce condensed water.

[0145] In this way, even if the inhaled fresh air is cooled, it will not be supercooled to produce condensed water. And even if condensed water is generated in the fresh air cavity V012, the condensed water is likely to stay in the fresh air cavity V012 and is not easily introduced into the volute cavity V011 and then 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, gradually increasing the fresh air temperature. Subsequently, the heated air enters the volute cavity V011 and is fully mixed, making the hot air blown out from the fresh air module milder.

[0146] In some embodiments, refer to Figure 8 , the fresh air duct V01 includes: a volute cavity V011 and a fresh air cavity V012. The fresh air fan 6 is located in the volute cavity V011, and the fresh air cavity V012 is located on the side of the volute cavity V011 facing the heat exchange fan 41. By separating the fresh air cavity V012 in this way, air treatment parts can be additionally arranged in the fresh air cavity V012 to increase the fresh air treatment capacity.

[0147] Specifically, the fresh air volute 8 includes: a fresh air grille 808 separated between the volute cavity V011 and the fresh air cavity V012, which can protect the fresh air fan 6 and prevent impurities from being inhaled into the fresh air fan 6 and causing damage.

[0148] In some embodiments, refer to Figure 3 , the wall-mounted air conditioner 10000 may include: a purification part 11, refer toFigure 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. 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 be blown through the purification component 11 and then enter the room from the fresh air outlet 802.

[0149] 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 condensed water is generated in the fresh air, the condensed 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.

[0150] Furthermore, the purification component 11 is connected to the second volute 82, which is convenient for the assembly of the purification component 11 and does not interfere with the fresh air fan 6.

[0151] Optionally, as Figure 15 shown, the purification component 11 includes a filter net 111, and the filter net 111 covers the axial ventilation opening 8211. The filter net 111 covers the entire air inlet end of the fresh air fan 6. The filter net 111 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.

[0152] Optionally, the filter net 111 is plate-shaped, so that the whole filter net 111 is relatively thin and will not occupy too large a size when placed in the two-way ventilation component. Optionally, the filter net 111 is square, which is convenient for the positioning and installation of the filter net 111.

[0153] 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 opening 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 opening 8211 enables all the fresh air flow entering the axial ventilation opening 8211 to flow through the filter net 111, with a high filtering cleanliness.

[0154] 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 is communicated with the cavity V0121.

[0155] That is to say, a purification component 11 is arranged in the fresh air cavity V012 near the fresh air fan 6, and the part of the fresh air cavity V012 away from the fresh air fan 6 is a cavity V0121, that is, the cavity V0121 is from the oncoming wind of the purification component 11 to the inner surface of the fan cover 822. In this way, when the fresh air fan 6 is running, the cavity V0121 is in a negative pressure state, so that the airflow can automatically flow into the cavity V0121 from the fresh air inlet 801, thereby reducing the air flow resistance.

[0156] In this way, while increasing the air intake volume of the fresh air module, it is also beneficial to the overall air intake reliability and stability.

[0157] In some embodiments, the fan cover 822 forms a positioning convex bump 8221 on the side facing the indoor heat exchanger 2. The base 3 is provided with an end plate 31 adjacent to the fan cover 822. Figure 18 As shown, a positioning notch 311 is formed on the end plate 31, and the positioning convex bump 8221 cooperates with the positioning notch 311. Figure 6 As shown, on the side of the fan cover 822 facing the indoor heat exchanger 2, the portion where the positioning convex bump 8221 is located is the first positioning surface F1, and the portion where the positioning convex bump 8221 is not located is the second positioning surface F2. After the positioning convex bump 8221 and the positioning notch 311 are matched, the end plate 31 is located between the first positioning surface F1 and the second positioning surface F2.

[0158] In this way, the positioning convex bump 8221 and the positioning notch 311 cooperate to form the positioning of the two-way ventilation component, and can also bring the fresh air volute 8 and the indoor heat exchanger 2 closer. The structure of the positioning notch 311 is not limited, for example Figure 18 In the example shown, the positioning notch 311 is set through in the thickness direction of the end plate 31, and the positioning notch 311 is equivalent to the notch on the end plate 31. After the positioning convex bump 8221 and the positioning notch 311 are matched, the positioning convex bump 8221 fills the notch on the end plate 31. For another example, the positioning notch 311 is a groove of the end plate 31 on the side facing the fresh air volute 8, and the groove is not through, and in this case, the positioning convex bump 8221 is equivalent to filling the groove.

[0159] After the fresh air volute 8 and the indoor heat exchanger 2 are brought closer together, the cold or heat of the indoor heat exchanger 2 can be absorbed by the fresh air in the fresh air volute 8, thereby making the incoming fresh air closer to the room temperature and gentler.

[0160] After the fresh air volute 8 and the indoor heat exchanger 2 are brought closer, in some solutions, at least part of the positioning convex bump 8221 can be at least partially overlapped with the indoor heat exchanger 2 in the horizontal direction. This can reduce the overall horizontal dimension and prevent the wall-mounted air conditioner 10000 from being too long.

[0161] Specifically, at least a portion of the cavity V0121 is located in the positioning convex bump 8221 , so that the positioning convex bump 8221 can be thinned and lightened, thereby improving the utilization rate of the internal space of the positioning convex bump 8221 .

[0162] 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.

[0163] 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 can be 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.

[0164] Specifically, Figure 3 As shown, in the front-to-back direction of the main body, the installation port 803 is located at 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.

[0165] It is also possible that in some solutions, the installation opening 803 is set at the bottom of the main body 1000.

[0166] 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.

[0167] 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.

[0168] Specifically, for the accommodation cavity V1 within the casing 1, through the cooperation of internal structures, two non-ventilated first chamber V11 and second chamber V12 are formed within the accommodation cavity V1, as Figure 2 shown.

[0169] In some specific embodiments as Figure 4 shown, on the base 3 near the fresh air volute 8, there is an end plate 31. The fresh air volute 8 and the end plate 31 cooperate to form a wind isolation 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 isolation structure, and the exhaust volute 9 with an exhaust air inlet 901 is located on the other side of the wind isolation structure. This can block the air with condensed water from entering the exhaust air inlet 901.

[0170] Especially in some embodiments, on the casing 1 corresponding to the exhaust volute 9, there is a casing air inlet 103. When the exhaust fan 7 rotates, indoor air can enter the accommodation cavity V1 from the casing air inlet 103 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 a shutdown state, when the exhaust fan 7 sucks air from the accommodation cavity V1, it is not easy to suck away the condensed water from the indoor heat exchanger 2.

[0171] The settings of the first chamber V11 and the second chamber V12 here can also be directly formed by the casing 1 in other embodiments. For example, a partition is integrally formed within the casing 1 to divide the accommodation cavity V1 into the first chamber V11 and the second chamber V12.

[0172] On the casing 1 corresponding to the second chamber V12, there is a casing air inlet 103, 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 isolation structure. When the fresh air fan 6 rotates, indoor air can enter the second chamber V12 from the casing air inlet 103, 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.

[0173] 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 for a physical connection pipe between the purification air inlet 804 and the casing air inlet 103, reducing the number of parts, reducing the occupied volume, and facilitating the layout. Specifically, as Figure 6 shown, the purification air inlet 804 is located at the bottom of the fresh air volute 8 and is set with the direction facing downwards.

[0174] It is understandable 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 downward, which is convenient for 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, which is convenient for centrally setting switches to select one of the inlets to open, reducing the number of switches.

[0175] Furthermore, 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 is understandable 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.

[0176] 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.

[0177] In some embodiments, as Figure 16 shown, an indoor air outlet 903 for communicating with the room is formed on the exhaust volute 9. When the exhaust fan 7 rotates, the indoor air entering the exhaust 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.

[0178] 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.

[0179] In some embodiments, as Figure 5 and Figure 8 shown, the exhaust volute 9 includes a wind guide ring 91, and the area surrounded by the wind guide ring 91 forms the exhaust air inlet 901. The setting of the wind guide ring 91 can effectively collect the scattered air flow, converge it into a relatively concentrated air flow and send it to the exhaust fan 7, making the air intake smoother and more efficient, and improving the air intake volume of the exhaust fan 7.

[0180] 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 best angle, improving the working efficiency of the exhaust fan 7. When unstable air flow fluctuations are inhaled, the air guide ring 91 can play a role in stabilizing the air flow, reducing the turbulence and fluctuations of the air flow, enabling the exhaust fan 7 to operate more smoothly. It can reduce noise and vibration and extend the service life of the exhaust fan 7.

[0181] Specifically, the air guide ring 91 is in the shape of a circular tube and is easy to process.

[0182] 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.

[0183] 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 output shaft 532 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.

[0184] As Figure 8 and Figure 9 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 radially inward direction 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.

[0185] 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 recess 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 without increasing the axial dimension of the exhaust volute 9 on the premise of setting the air guide ring 91.

[0186] 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.

[0187] 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 one end of the gradient section 7212 away from the axis of the exhaust fan 7 .

[0188] That is to say, if there is no straight section 7211, and the exhaust blade 72 is all gradient section 7212, the blade size of the exhaust blade 72 will be reduced in the radial direction of the exhaust fan 7, which will further reduce the wind sweeping area of the blade, that is, affect the air volume of the exhaust fan 7. Therefore, the combination of 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 fully utilize 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.

[0189] 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.

[0190] 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.

[0191] 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.

[0192] In some embodiments, Figure 17As shown in the figure, the wall-mounted air conditioner 10000 may include: a fixing bracket 17, which 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. When operating, the bending moment borne by the second motor 5 is small, which is beneficial to improving the rotational stability of the fresh air fan 6 and the air exhaust fan 7.

[0193] Specifically, as Figure 17 shown in the figure, the fixing bracket 17 includes a bracket end plate 171, a bracket connecting plate 172 and a bracket support ring 175. The bracket end plate 171 is connected to the air exhaust volute 9. The bracket support ring 175 is connected to the side of the stator part 51 facing the fresh air fan 6. The bracket connecting plate 172 is connected between the bracket end plate 171 and the bracket support ring 175, and the bracket connecting plate 172 is detachably connected to at least one of the bracket end plate 171 and the bracket support ring 175.

[0194] An installation cavity 174 is defined between the bracket end plate 171, the bracket connecting plate 172 and the bracket support ring 175. The main body 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, the bracket end plate 171, the bracket connecting plate 172 and the bracket support ring 175 can all support the second motor 5, improving the installation firmness of the second motor 5, but also the installation cavity 174 can protect the electronic connectors at the end of the second motor 5. In addition, the bracket connecting plate 172 is detachably connected to at least one of the bracket end plate 171 and the bracket support ring 175, which is convenient for disassembly and assembly.

[0195] 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. 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 far from the air exhaust fan 7. Compared with the scheme of leading the wire from other sides of the fixing bracket 17, the wire passing hole 173 scheme is beneficial to reducing the length of the wire harness, avoiding the situation that the wire harness is too long and easy to be caught by the air exhaust fan 7. Moreover, 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, avoiding the situation that the connection part is touched by foreign objects and causes poor contact.

[0196] Furthermore, referring to Figure 5, the wall-mounted air conditioner 10000 may include: an insulating sleeve 18, which is sleeved on the wire harness and connected at the wire passing hole 173. The setting of the insulating sleeve 18 buffers and protects the wire harness when it is connected to the wire passing hole 173, avoiding the wire harness from being worn and causing electric leakage when this place is impacted. 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 joints at the end of the second motor 5 being affected by moisture and damaged.

[0197] Optionally, the projection of the fixing bracket 17 in the axial direction of the exhaust fan 7 is located within the projection of the exhaust volute 9 in the axial direction of the exhaust fan 7.

[0198] With such a setting, the fixing bracket 17 does not extend beyond the exhaust volute 9 axially, and the setting of the fixing bracket 17 will not cause an additional increase in the axial dimension, which is beneficial to reducing the overall axial dimension.

[0199] In some specific embodiments, as Figure 2 shown, 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 air outlet 902. A pipe passing avoidance opening 104 is provided on the bottom wall of the housing 1. The fresh air inlet pipe 141 and the exhaust outlet pipe 142 are passed through the pipe passing avoidance opening 104 and extend out from below the main body 1000. The fresh air inlet pipe 141 and the exhaust outlet pipe 142 are two independent pipe fittings, which helps to separate the fresh air flow path and the exhaust air flow path from each other, without crossing, and reduces the risk of air leakage caused by cross-flow.

[0200] The pipe passing avoidance opening 104 is provided on the bottom wall of the main body 1000, which is convenient for installing the above pipelines.

[0201] Set the pipe passing avoidance opening 104 on the side wall of the housing 1, and then horizontally place and extend the fresh air inlet pipe 141 and the exhaust outlet pipe 142, which is convenient for arranging at least one of the fresh air inlet pipe 141 and the exhaust outlet pipe 142 side by side with the drain pipe and the refrigerant pipe. Then, the multiple pipes arranged side by side are covered with an outer bundle pipe or a strap, so that the multiple pipes are formed into one pipe in appearance, so that the number of connecting pipes on the wall-mounted air conditioner 10000 after installation is small and the appearance is simple, which is not only convenient for assembly, but also avoids the risk of multiple pipes bumping.

[0202] In some embodiments, as Figure 1 shown, a housing air outlet 105 is provided on the housing 1. The housing air outlet 105 is arranged corresponding 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 housing air outlet 105.

[0203] 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.

[0204] In some further 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 casing air outlet 105 can be arranged below the casing 1.

[0205] Optionally, as Figure 1 and Figure 3 shown, a guide grille 16 is provided at the casing air outlet 105 of the casing 1 to adjust the air outlet direction of the fresh air.

[0206] 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 is directly opposite to the axial air inlet end of the exhaust fan 7, so that the exhaust fan 7 has a small air inlet resistance at the exhaust air inlet 901, 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.

[0207] Specifically, the exhaust air inlet 901 on the exhaust air volute 9 faces away from the indoor heat exchanger 2, and the air inlet area of the exhaust air inlet 901 just avoids the indoor heat exchanger 2. When there is condensed water on the indoor heat exchanger 2, or when there is condensed water attached to the surface of the parts near the indoor heat exchanger 2 in the accommodation cavity V1, the condensed water 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 the condensed water entering the second motor 5. When the fresh air fan 6 rotates to intake air from the outside, the condensed water 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.

[0208] In some embodiments, as Figure 1 shown, a casing air inlet 103 is provided at one end of the casing 1 where the second motor 5 is located, and the casing air inlet 103 is located at the top of the main body 1000. A first connecting air duct V04 is formed between the casing air inlet 103 and the exhaust air inlet 901. When the exhaust fan 7 rotates, it drives the indoor air to enter the first connecting air duct V04 from the casing air inlet 103, and makes the indoor air enter the exhaust air volute 9 through the exhaust air inlet 901.

[0209] That is to say, there is no need to connect a physical pipeline between the casing air inlet 103 and the exhaust air inlet 901, and the air flow is only sucked in from the top by the air pressure. The casing air inlet 103 is located at the top of the casing 1, that is, in an area that the user cannot see. Hiding the casing air inlet 103 can improve the appearance beauty.

[0210] In some other embodiments, an air inlet 103 is provided at one end of the housing 1 where the second motor 5 is located, and the air inlet 103 of the housing 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 housing 1 through the air inlet 103 of the housing, 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 air inlet 103 of the housing and the exhaust air inlet 901, and the air inlet 103 of the housing is located on the side of the main body 1000 and can be directly opposite to the exhaust air inlet 901.

[0211] On the one hand, the air inlet path from the air inlet 103 of the housing to the exhaust air inlet 901 becomes shorter, and the air inlet path from the air inlet 103 of the housing 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.

[0212] Optionally, the exhaust fan 7 can be a plastic part, so it has a light weight and low cost. Of course, the solution of this 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 it has a light weight and low cost. Of course, the solution of this application is not limited to this, and the fresh air fan 6 can also be a resin part, a metal part, etc.

[0213] Similarly, the exhaust volute 9 can be a plastic part, so it has a light weight and low cost. Optionally, the exhaust volute 9 is an injection molded part. Optionally, the fresh air volute 8 can be a plastic part. Optionally, the fresh air volute 8 is an injection molded part. Of course, the solution of this application is not limited to this, and the fresh air volute 8 and the exhaust volute 9 can also be metal parts, etc.

[0214] Optionally, according to the structural and functional requirements designed by 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. Compared with sucking air from the relatively enclosed indoor space and discharging it outdoors, the energy consumption is lower. Moreover, the air freshness in the outdoor environment is high. 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.

[0215] 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 each other.

[0216] In the description of this specification, the descriptions referring to the terms "embodiment", "example", etc. mean 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Although the embodiments of the present invention 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 invention, and the scope of the present invention 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 housing (1), 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); A base (3), disposed in the accommodation cavity (V1), on which a volute tongue air duct (V03) is formed; A heat exchange fan (41), disposed in the volute tongue air duct (V03), so as to suck indoor air into the volute tongue air duct (V03) through the heat exchange air inlet (101) when rotating, and blow the air in the volute tongue air duct (V03) into the room through the heat exchange air outlet (102); A first motor (42), disposed in the accommodation cavity (V1) and located at one end in the length direction of the heat exchange fan (41), for driving the heat exchange fan (41) to rotate; It is characterized in that it further comprises: A second motor (5), disposed in the accommodation cavity (V1), and the second motor (5) is located at the other end in the length direction of the heat exchange fan (41), the second motor (5) comprising: A rotor part (52); A stator part (51), in the radial direction of the rotor part (52), the stator part (51) is disposed around the outside of the rotor part (52); An output shaft (532), the output shaft (532) is fixedly connected to the rotor part (52); 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), and the fresh air fan (6) is fixedly connected to the output shaft (532) of the second motor (5); Wherein, the fresh air fan (6) is located between the second motor (5) and the heat exchange fan (41); 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), and the exhaust fan (7) is fixedly connected to the output shaft (532) of the second motor (5); Wherein, the fresh air fan (6) is located between the exhaust fan (7) and the heat exchange fan (41), and the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously in the working state; 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 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); An exhaust air volute (9) is located on one side of the fresh air volute (8) facing the second motor (5). An exhaust air duct (V02) is formed inside the exhaust air volute (9). The exhaust air fan (7) is installed inside the exhaust air volute (9). An exhaust air inlet (901) and an exhaust air outlet (902) are formed on the exhaust air volute (9).

2. The wall-mounted air conditioner (10000) according to claim 1, wherein the exhaust air fan (7) includes: an exhaust air connecting shaft sleeve (77), which is located at the center of the exhaust air fan (7), extends along the axial direction of the exhaust air fan (7), and is sleeved and connected to the output shaft (532).

3. The wall-mounted air conditioner (10000) according to claim 2, characterized in that, One end of the exhaust air connecting shaft sleeve (77) is located inside the fresh air duct (V01) and abuts against the fresh air fan (6).

4. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, An exhaust air accommodating groove (V07) is formed at the radial center of the exhaust air fan (7). At least a part of the stator part (51) and at least a part of the rotor part (52) of the second motor (5) are accommodated in the exhaust air accommodating groove (V07).

5. The wall-mounted air conditioner (10000) according to claim 1, wherein the exhaust air fan (7) includes: an exhaust air wheel disc (71); exhaust air blades (72), which are located at the outer edge of the exhaust air wheel disc (71) and extend along the axial direction of the exhaust air wheel disc (71); an exhaust air convex part (74), which is provided on the exhaust air wheel disc (71) and extends in the direction of the fresh air fan (6) relative to the exhaust air wheel disc (71), so that an exhaust air accommodating groove (V07) is formed on the side of the exhaust air convex part (74) close to the second motor (5); wherein, at least a part of the stator part (51) and at least a part of the rotor part (52) are accommodated in the exhaust air accommodating groove (V07).

6. The wall-mounted air conditioner (10000) according to claim 5, wherein the fresh air volute (8) includes: a first volute (81), which is located on one side of the exhaust air volute (9) facing the heat exchange fan (41) and is detachably connected to the exhaust air volute (9); a second volute (82), which is located on one side of the first volute (81) facing the heat exchange fan (41) and is detachably connected to the first volute (81), wherein, the first volute (81) is located between the exhaust air volute (9) and the second volute (82).

7. The wall-mounted air conditioner (10000) according to claim 6, wherein the first volute (81) includes: The first volute end plate (811), a recessed portion (813) is formed in a central portion region of the first volute end plate (811) facing the inside of the fresh air fan (6); The first volute shroud (812), the first volute shroud (812) is formed by extending along the edge of the first volute end plate (811) toward the heat exchange fan (41); Wherein, at least a part of the exhaust protrusion (74) is located in the recessed portion (813).

8. The wall-mounted air conditioner (10000) according to claim 7, characterized in that The fresh air fan (6) includes: A fresh air disk (61); Fresh air blades (62), the fresh air blades (62) are located at the outer edge of the fresh air disk (61), and the fresh air blades (62) extend along the axial direction of the fresh air disk (61); Wherein, the fresh air fan (6) may include a fresh air protrusion (64) provided on the fresh air disk (61), and the fresh air protrusion (64) extends in a direction toward the heat exchange fan (41) relative to the fresh air disk (61), so that a fresh air receiving groove (V08) is formed on a side of the fresh air protrusion (64) close to the second motor (5); at least a part of the recessed portion (813) is received in the fresh air receiving groove (V08).

9. The wall-mounted air conditioner (10000) according to claim 8, characterized in that The fresh air blades (62) may include: The first fresh air blade (621), the first fresh air blade (621) extends from the fresh air disk (61) in a direction away from the exhaust fan (7).

10. The wall-mounted air conditioner (10000) according to claim 8, characterized in that The fresh air blades (62) may include: The second fresh air blade (622), the second fresh air blade (622) extends from the fresh air disk (61) in a direction close to the exhaust fan (7); Wherein, in the radial direction of the fresh air fan (6), a plurality of the second fresh air blades (622) are arranged around the outside of the recessed portion (813).

11. The wall-mounted air conditioner (10000) according to claim 10, characterized in that, In the axial direction of the fresh air fan (6), the length (h12) of the second fresh air blade (622) is less than the length (L2) of the recessed portion (813).

12. The wall-mounted air conditioner (10000) according to claim 10, characterized in that, A disk hole (612) is formed on the fresh air disk (61), and the distance from the disk hole (612) to the center of the fresh air disk (61) is less than the distance from the fresh air blade (62) to the center of the fresh air disk (61).

13. The wall-mounted air conditioner (10000) according to claim 1, characterized in that The fresh air fan (6) includes: A fresh air disk (61); Fresh air blades (62), the fresh air blades (62) are located at the outer edge of the fresh air disk (61), and the fresh air blades (62) extend along the axial direction of the fresh air disk (61), and the total thickness of the fresh air disk (61) and the fresh air blades (62) in the axial direction is h1; The exhaust fan (7) includes: An exhaust disk (71); An exhaust air blade (72), the exhaust air blade (72) being located at the outer edge of the exhaust air wheel disc (71), and the exhaust air blade (72) extending along the axial direction of the exhaust air wheel disc (71), the total thickness of the exhaust air wheel disc (71) and the exhaust air blade (72) in the axial direction being h2; wherein, h2 < h1.

14. The wall-mounted air conditioner (10000) according to claim 1, characterized in that the total thickness of the stator part (51) and the rotor part (52) in the axial direction is h3; The exhaust air fan (7) includes: An exhaust air wheel disc (71); An exhaust air blade (72), the exhaust air blade (72) being located at the outer edge of the exhaust air wheel disc (71), and the exhaust air blade (72) extending along the axial direction of the exhaust air wheel disc (71); the total thickness of the exhaust air wheel disc (71) and the exhaust air blade (72) in the axial direction is h2; wherein, h3 > h2.

15. The wall-mounted air conditioner (10000) according to claim 1, characterized in that The exhaust air fan (7) includes: An exhaust air wheel disc (71), the exhaust air wheel disc (71) being coaxially arranged with the second motor (5) and connected to the output shaft (532); Exhaust air blades (72), there being a plurality of the exhaust air blades (72), the exhaust air blades (72) being arranged on the exhaust air wheel disc (71), and the exhaust air blades (72) only extending in a direction away from the fresh air fan (6), the plurality of exhaust air blades (72) being arranged circumferentially on the exhaust air wheel disc (71).

16. The wall-mounted air conditioner (10000) according to claim 15, characterized in that The exhaust air volute (9) may include: A wind guiding ring (91), the area surrounded by the wind guiding ring (91) forming the exhaust air inlet (901); wherein, the edge of the exhaust air blade (72) away from the exhaust air wheel disc (71) is a blade side edge (721), at least part of the blade side edge (721) being a tapered section (7212), and in the radially inward direction of the exhaust air fan (7), the distance between the tapered section (7212) and the exhaust air wheel disc (71) gradually decreases.

17. The wall-mounted air conditioner (10000) according to claim 16, wherein, All the exhaust air blades (72) form a side edge depression (723) at the tapered section (7212), and the end of the wind guiding ring (91) is located in the side edge depression (723).

18. The wall-mounted air conditioner (10000) according to any one of claims 1-17, characterized in that The fresh air duct (V01) includes: A volute cavity (V011), the fresh air fan (6) being located in the volute cavity (V011); A fresh air cavity (V012), the fresh air cavity (V012) being located on the side of the volute cavity (V011) facing the heat exchange fan (41); The fresh air volute (8) includes: A fresh air grille (808), separating the volute cavity (V011) and the fresh air cavity (V012); The wall-mounted air conditioner (10000) may include: Purifying member (11), the purifying member (11) is installed in the fresh air chamber (V012). 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 the outdoor air entering the fresh air volute (8) to blow through the purifying member (11), and then enter the room from the fresh air outlet (802).

19. The wall-mounted air conditioner (10000) according to any one of claims 1-17, characterized in that, It further includes: Fixing bracket (17), the fixing bracket (17) is located at the exhaust air inlet (901), and the fixing bracket (17) is connected to the exhaust air volute (9), and the second motor (5) is installed on the fixing bracket (17); The fixing bracket (17) includes: Bracket end plate (171), the bracket end plate (171) is connected to the exhaust air volute (9); Bracket connecting plate (172); Bracket support ring (175), the bracket support ring (175) is connected to the side of the stator portion (51) facing the fresh air fan (6); Wherein, the bracket connecting plate (172) is connected between the bracket end plate (171) and the bracket support ring (175), and the bracket connecting plate (172) is detachably connected to at least one of the bracket end plate (171) and the bracket support ring (175).

Images