Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner which comprises a main body, a second motor, a fresh air fan, an exhaust fan, a fresh air volute and an exhaust volute. The main body comprises a machine shell, an indoor heat exchanger, a base, a heat exchange fan and a first motor connected with the heat exchange fan. The first motor and a second motor are located at the two ends of the main body in the length direction. The second motor is connected with the fresh air fan and the exhaust fan so as to rotate synchronously. The fresh air fan is located on the side, away from the first motor, of the heat exchange fan, the exhaust fan is located on the side, facing the second motor, of the fresh air fan, the fresh air fan comprises a fresh air wheel disc, first fresh air blades and second fresh air blades, and the fresh air wheel disc and the second motor are coaxially arranged; the first fresh air blades extend in the direction away from the exhaust fan from the fresh air wheel disc, and the second fresh air blades extend in the direction close to the exhaust fan from the fresh air wheel disc. And the fresh air blades are arranged on the two sides of the fresh air wheel disc, so that vortex noise generated when the fresh air fan rotates is reduced.

Description

Technical Field

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

[0002] In the related art, some wall-mounted air conditioners are configured with a ventilation component. The ventilation component includes a fresh air volute and a fresh air fan disposed inside the fresh air volute. When the fresh air fan rotates, outdoor air is inhaled into the fresh air volute and then sent into the room from the fresh air volute. When the fresh air fan is rotating, the air wrapped by different blades will contact the volute tongue at the air outlet of the fresh air volute. Due to the relatively high speed of the fresh air fan, sharp noises will be generated, affecting the user experience. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a wall-mounted air conditioner, which can reduce the noise of the fresh air fan.

[0004] The wall-mounted air conditioner according to an embodiment of the utility model includes: a main body. The main body includes: a housing, an accommodation cavity is formed inside the housing, a heat exchange air inlet and a heat exchange air outlet are formed on the housing, and in the height direction of the main body, the heat exchange air inlet is located above the heat exchange air outlet; an indoor heat exchanger disposed in the accommodation cavity; 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 and located on the side of the indoor heat exchanger away from the heat exchange air inlet; a first motor disposed in the accommodation cavity and located at one end in the length direction of the main body, for driving the heat exchange fan to rotate so that air exchanges heat between the inside of the air conditioner and the indoor space.

[0005] The wall-mounted air conditioner 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 main body; a fresh air fan, the fresh air fan is a centrifugal fan with axial air inlet and radial air outlet, and the fresh air fan is located on the side of the heat exchange fan away from the first motor; an exhaust fan, the exhaust fan is a centrifugal fan with axial air inlet and radial air outlet, and in the length direction of the main body, the exhaust fan is located on the side of the fresh air fan facing the second motor; wherein, the second motor drives the fresh air fan and the exhaust fan to rotate synchronously in the working state.

[0006] The wall-mounted air conditioner further includes: a fresh air volute. A fresh air duct is formed inside the fresh air volute. The fresh air fan is installed inside the fresh air volute. A fresh air inlet and a fresh air outlet are formed on the fresh air volute. When the fresh air fan rotates, outdoor air can enter the fresh air volute from the fresh air inlet, and the outdoor air entering the fresh air volute can enter the room from the fresh air outlet.

[0007] The wall-mounted air conditioner further includes: an exhaust volute, which is located on one side of the fresh air volute facing the second motor. An exhaust duct is formed inside the exhaust volute. The exhaust fan is installed inside the exhaust volute. An exhaust inlet and an exhaust outlet are formed on the exhaust volute. When the exhaust fan rotates, indoor air can enter the exhaust volute from the exhaust inlet, and the indoor air entering the exhaust volute can be discharged to the outside from the exhaust outlet.

[0008] The fresh air fan includes: a fresh air wheel disc, which is coaxially arranged with the second motor; a first fresh air blade, which extends from the fresh air wheel disc in a direction away from the exhaust fan; a second fresh air blade, which extends from the fresh air wheel disc in a direction close to the exhaust fan. Wherein, in the axial direction of the fresh air fan, the first fresh air blade is located between the second fresh air blade and the fresh air inlet.

[0009] For the wall-mounted air conditioner according to an embodiment of the present invention, by arranging fresh air blades on both sides of the fresh air wheel disc, it is beneficial to reduce the eddy current noise when the fresh air fan rotates.

[0010] In some embodiments, in the axial direction of the fresh air fan, the length of the second fresh air blade is less than the length of the first fresh air blade.

[0011] In some embodiments, in the axial direction of the fresh air fan, the length of the second fresh air blade is h12, and the length of the first fresh air blade is h11, satisfying: 0.1 ≤ h12 / h11 ≤ 0.45.

[0012] In some embodiments, there are multiple first fresh air blades, and the multiple first fresh air blades are arranged circumferentially on the fresh air wheel disc. The first fresh air blades are located at the edge of the fresh air wheel disc. There are multiple second fresh air blades, and the multiple second fresh air blades are arranged circumferentially on the fresh air wheel disc. The second fresh air blades are located at the edge of the fresh air wheel disc.

[0013] In some embodiments, in the circumferential direction of the fresh air fan, the distance between two adjacent first fresh air blades and the distance between two adjacent second fresh air blades are both C, and the first fresh air blades and the second fresh air blades are arranged staggeredly with a staggering distance of D, satisfying 0.1 ≤ D / C ≤ 0.8.

[0014] In some embodiments, one ends of multiple first fresh air blades away from the fresh air wheel disc are connected by a first ring, the first ring is separated from the fresh air wheel disc, and the first ring is used to increase the connection strength of the multiple first fresh air blades; one ends of the multiple second fresh air blades away from the fresh air wheel disc are separated from each other.

[0015] In some embodiments, one ends of multiple first fresh air blades away from the fresh air wheel disc are all connected to a first ring, the first ring is separated from the fresh air wheel disc, and the first ring is used to increase the connection strength of the multiple first fresh air blades; one ends of the multiple second fresh air blades away from the fresh air wheel disc are all connected to a second ring, the second ring is separated from the fresh air wheel disc, and the second ring is used to increase the connection strength of the multiple second fresh air blades.

[0016] In some embodiments, the fresh air wheel disc is provided with wheel disc holes, and the wheel disc holes penetrate through the fresh air wheel disc along the axial direction.

[0017] In some embodiments, in the radial direction of the fresh air wheel disc, there are multiple wheel disc holes, and the multiple wheel disc holes are arranged circumferentially on the fresh air wheel disc.

[0018] In some embodiments, the distance from the wheel disc hole to the center of the fresh air wheel disc is less than the distance from any one of the first fresh air blade and the second fresh air blade to the center of the fresh air wheel disc.

[0019] In some embodiments, the wheel disc hole is located on the side of the first fresh air blade and the second fresh air blade close to the center of the fresh air wheel disc, and the distance from the wheel disc hole to any one of the first fresh air blade and the second fresh air blade is less than the distance from the wheel disc hole to the center of the fresh air wheel disc.

[0020] In some embodiments, the wheel disc hole extends along the radial direction of the fresh air wheel disc, and in the radial direction of the fresh air wheel disc, the width of the end of the wheel disc hole away from the center of the fresh air wheel disc is greater than the width of the end of the wheel disc hole close to the center of the fresh air wheel disc.

[0021] In some embodiments, the fresh air impeller disc includes a fresh air impeller disc body and a connecting portion. The connecting portion is disposed on the fresh air impeller disc body. The connecting portion has a connecting hole connected to the second motor. In the axial direction of the fresh air fan, the length of the connecting portion is greater than the length of the fresh air impeller disc body.

[0022] In some embodiments, the second motor is an outer rotor motor. The second motor includes: a stator portion with a wound coil thereon; a rotor portion disposed around the outside of the stator portion in the radial direction of the stator portion; a motor housing fixedly connected to the rotor portion; an output shaft fixedly connected to the motor housing, and one end of the output shaft extends along the axial direction of the motor housing toward the side of the heat exchange fan, and the other end of the output shaft extends into the stator portion; the fresh air fan is located between the heat exchange fan and the motor housing, the fresh air impeller disc is connected to the output shaft of the second motor, the exhaust fan is sleeved on the radial outside of the motor housing, and the exhaust fan is fixedly connected to the motor housing.

[0023] In some embodiments, the fresh air volute includes: a first volute located on the side of the exhaust volute facing the heat exchange fan and detachably connected to the exhaust volute; a second volute located on the side of the first volute facing the heat exchange fan and detachably connected to the first volute, and the first volute is located between the exhaust volute and the second volute; a volute cavity is formed between the second volute and the first volute, and the fresh air fan is located in the volute cavity; the first volute is located on the side of the second fresh air blade away from the fresh air impeller disc, and the second volute is located on the side of the first fresh air blade away from the fresh air impeller disc.

[0024] The second volute is provided with an axial ventilation port at the center in the radial direction. The axial air inlet end of the first fresh air blade faces the axial ventilation port. The fresh air inlet is located on the second volute. In the axial direction of the fresh air fan, the fresh air inlet is located on the side of the axial ventilation port away from the second fresh air blade.

[0025] In some embodiments, the fresh air impeller disc is provided with a disc hole that penetrates the fresh air impeller disc axially. In the radial direction of the fresh air fan, the disc hole is located on the side of the first fresh air blade and the second fresh air blade close to the center of the fresh air impeller disc. The disc hole is used to guide the outdoor air entering the volute cavity through the fresh air inlet and the axial ventilation port from the side of the fresh air impeller disc facing the first fresh air blade to the side of the fresh air impeller disc facing the second fresh air blade.

[0026] In some embodiments, the exhaust fan includes an exhaust wheel disc and exhaust blades. The exhaust blades are located at the edge of the exhaust wheel disc and extend axially along the exhaust wheel disc in a direction away from the fresh air fan. Wherein, the exhaust fan further includes a convex portion provided on the exhaust wheel disc. The center of the convex portion is located on the axis of the exhaust fan, and the convex portion extends in a direction towards the fresh air fan relative to the exhaust wheel disc, so that a receiving groove for the second motor is formed on the side of the convex portion close to the second motor. At least a part of the stator portion and at least a part of the rotor portion are received in the receiving groove.

[0027] The first volute includes a first volute end plate and a first volute shroud. The first volute end plate is located on the side of the second fresh air blade away from the fresh air wheel disc. The first volute shroud extends along the edge of the first volute end plate towards the heat exchange fan. Wherein, a central partial area of the first volute end plate forms a recess towards the inside of the fresh air fan, and a perforation is provided at the center of the recess. At least a part of the convex portion is located in the recess, and the output shaft is connected to the fresh air wheel disc through the perforation.

[0028] In some embodiments, the second volute includes: a second volute half body, which is located on the side of the first volute towards the heat exchange fan and is detachably connected to the first volute. The second volute half body is located on the side of the first fresh air blade away from the fresh air wheel disc. The axial ventilation opening is located at the center of the second volute half body in the radial direction. The volute cavity is formed between the second volute half body and the first volute. The second volute half body and the first volute enclose the fresh air outlet; a blower housing, which is located on the side of the second volute half body away from the fresh air fan and is detachably connected to the second volute half body. The cavity enclosed by the blower housing and the second volute half body is the fresh air cavity, and the blower housing and the second volute half body enclose the fresh air inlet.

[0029] In some embodiments, the wall-mounted air conditioner further includes: a purification component, which is installed in the fresh air cavity and is connected to the second volute. The purification component includes a filter screen, and the filter screen covers the axial ventilation opening. The rotation of the fresh air fan can make outdoor air enter the fresh air cavity from the fresh air inlet, and can make the outdoor air entering the fresh air cavity blow through the filter screen, then enter the volute cavity through the axial ventilation opening, and then enter the room from the fresh air outlet.

[0030] In some embodiments, the air inlet direction of the fresh air inlet is parallel to the filter screen, and the air inlet direction of the axial ventilation opening is perpendicular to the filter screen.

[0031] In some embodiments, the total thickness of the fresh air wheel disc, the first fresh air blade and the second fresh air blade in the axial direction is h1; the exhaust fan includes an exhaust wheel disc and exhaust blades, the exhaust blades are located at the outer edge of the exhaust wheel disc and extend along the axial direction of the exhaust wheel disc, and the total thickness of the exhaust wheel disc and the exhaust blades in the axial direction is h2; wherein, h2 < h1.

[0032] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0033] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0034] Figure 1 Is a perspective view of the main body of a wall-mounted air conditioner in some embodiments (part of the casing is hidden in the figure);

[0035] Figure 2 Is a front view of the main body of a wall-mounted air conditioner in some other embodiments (part of the casing is hidden in the figure);

[0036] Figure 3 Is a perspective view of the inside of the main body in one direction in some embodiments;

[0037] Figure 4 Is a perspective view of the inside of the main body in another direction in some embodiments;

[0038] Figure 5 Is a perspective view of one direction of a two-way ventilation component in some embodiments;

[0039] Figure 6 Is a perspective view of another direction of a two-way ventilation component in some embodiments;

[0040] Figure 7 Is a side view of a two-way ventilation component in some embodiments;

[0041] Figure 8 Is Figure 7 The cross-sectional view along the A-A direction in;

[0042] Figure 9 Is an exploded view of a second motor in some embodiments;

[0043] Figure 10 Is a cross-sectional view of a second motor in some embodiments;

[0044] Figure 11 Is a cross-sectional view of an exhaust fan in some embodiments;

[0045] Figure 12 Front view of the fresh air fan in some embodiments;

[0046] Figure 13 Side view of the fresh air fan in some embodiments;

[0047] Figure 14 Exploded view of the two-way ventilation component (some parts hidden) in one direction in some embodiments;

[0048] Figure 15 Exploded view of the two-way ventilation component in another direction in some embodiments;

[0049] Figure 16 Another side view of the fresh air fan in some embodiments;

[0050] Figure 17 Is Figure 12 Cross-sectional view along the B-B direction in;

[0051] Figure 18 Stereogram of the fresh air fan in some embodiments;

[0052] Figure 19 Another stereogram of the fresh air fan in some embodiments;

[0053] Figure 20 Stereogram of the exhaust fan in some other embodiments.

[0054] Reference numerals:

[0055] Wall-mounted air conditioner 10000, main body 1000,

[0056] Machine shell 1, accommodation cavity V1, heat exchange air inlet 101, heat exchange air outlet 102, machine shell air inlet 103, first communication duct V04, pipe avoidance port 104, machine shell air outlet 105,

[0057] Indoor heat exchanger 2, base 3, volute tongue duct V03, end plate 31, heat exchange fan 41, first motor 42,

[0058] Second motor 5, stator part 51, rotor part 52, motor shell 53, output shaft 532,

[0059] Fresh air fan 6, fresh air wheel disc 61, fresh air wheel disc body 611, wheel disc holes 612, connecting part 613, connecting holes 6131, fresh air blades 62, first fresh air blades 621, second fresh air blades 622, first rim 63,

[0060] Exhaust fan 7, accommodation groove V07, exhaust wheel disc 71, exhaust blades 72, blade side edge 721, side edge depression 73, protruding part 74, exhaust wheel rim 75,

[0061] Fresh air volute 8, fresh air duct V01, volute cavity V011, fresh air cavity V012, fresh air inlet 801, fresh air outlet 802, installation opening 803, purification air inlet 804,

[0062] First volute 81, first volute end plate 811, first volute shroud 812, recessed portion 813, perforated portion 814,

[0063] Second volute 82, second volute half 821, axial ventilation opening 8211, fan housing 822,

[0064] Exhaust volute 9, exhaust duct V02, exhaust air inlet 901, exhaust air outlet 902, air deflector 91,

[0065] Purifying member 11, filter net 111, fresh air inlet pipe 141, exhaust air outlet pipe 142, air guide grille 16. Detailed implementation manners

[0066] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0067] In the description of the present utility model, 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. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0068] In the description of the present utility model, 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 can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can 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 circumstances.

[0069] The present application solution introduces the structure of a wall-mounted air conditioner 10000.

[0070] Before that, the structure of a common air conditioner is introduced first. A common air conditioner is a split-type air conditioner, which includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected through pipelines to transfer refrigerant. The indoor unit includes an indoor heat exchanger 2 and a heat exchange fan 41.

[0071] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan, and a throttling element. The compressor, the outdoor heat exchanger, the throttling element, and the indoor heat exchanger 2 connected in sequence form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with air through the outdoor heat exchanger and the indoor heat exchanger 2 respectively to achieve the cooling mode or the heating mode of the air conditioner.

[0072] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0073] The outdoor heat exchanger is configured to exchange heat between the outdoor air and the refrigerant flowing in the outdoor heat exchanger. For example, the outdoor heat exchanger operates as a condenser in the cooling mode of the air conditioner, so that the refrigerant compressed by the compressor dissipates heat to the outdoor air through the outdoor heat exchanger and condenses. The outdoor heat exchanger operates as an evaporator in the heating mode of the air conditioner, so that the decompressed refrigerant absorbs the heat of the outdoor air through the outdoor heat exchanger and evaporates.

[0074] In some embodiments, the outdoor heat exchanger further includes heat exchange fins to increase the contact area between the outdoor air and the refrigerant flowing in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0075] The outdoor fan is configured to suck external air into the outdoor unit and send the outdoor air that has exchanged heat with the outdoor heat exchanger to the outside. The outdoor fan provides power for the flow of the outdoor air.

[0076] The throttle component is connected between the outdoor heat exchanger and the indoor heat exchanger 2. The throttle component is used to regulate the refrigerant pressure flowing through the outdoor heat exchanger and the indoor heat exchanger 2, so as to regulate the refrigerant flow rate flowing between the outdoor heat exchanger and the indoor heat exchanger 2. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger 2 will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger 2. The throttle component can be a throttle tube, an electronic valve, etc. When the throttle component is an electronic valve, the opening degree of the throttle component is adjustable to regulate the flow rate and pressure of the refrigerant flowing through the throttle component.

[0077] In some solutions, the air conditioner further includes a four-way valve. The four-way valve is connected within the refrigerant circuit and is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner executes a refrigeration mode or a heating mode.

[0078] The indoor heat exchanger 2 is configured to exchange heat between the indoor air and the refrigerant flowing in the indoor heat exchanger 2. In some embodiments, the indoor heat exchanger 2 further includes heat exchange fins to increase the contact area between the indoor air and the refrigerant flowing in the indoor heat exchanger 2, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0079] The heat exchange fan 41 is configured to suck the indoor air into the indoor unit and send the indoor air that has exchanged heat with the indoor heat exchanger 2 back into the room. The heat exchange fan 41 provides power for the flow of the indoor air.

[0080] The air conditioner further includes a control device. The control device is mainly used to control the operating frequency of the compressor and the opening degree of the throttle component. Some control devices can also control the rotation speed of the outdoor fan and the rotation speed of the heat exchange fan 41, etc. The control device is connected to the compressor, the throttle component, the outdoor fan and the heat exchange fan 41 through data lines to transmit communication information.

[0081] The control device includes a processor. The processor can include a central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), and can be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device.

[0082] The non-transitory computer-readable storage medium can include magnetic storage devices (such as hard disks, floppy disks or magnetic tapes), smart cards or flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks or key drives).

[0083] A wall-mounted air conditioner 10000 proposed in this application 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.

[0084] The wall-mounted air conditioner 10000 according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0085] The wall-mounted air conditioner 10000 according to an embodiment of the present application, as Figure 1 and Figure 2 shown, includes: a main body 1000.

[0086] The main body 1000 includes: 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. The housing 1 can play a protective role and constitute the overall external shape structure of the wall-mounted air conditioner 10000.

[0087] Generally, the housing 1 is an elongated housing as a whole, and the length direction of the housing 1 is arranged along the horizontal direction, that is, the housing 1 is installed on the wall transversely. In actual products, in order to drain condensate, in some embodiments, the housing 1 is installed on the wall transversely and forms a small angle with the horizontal plane.

[0088] Referring to Figure 3 and Figure 4 , the main body 1000 further includes: an indoor heat exchanger 2, and the indoor heat exchanger 2 is arranged in the accommodation cavity V1. As described above, the indoor heat exchanger 2 is a part of the refrigerant circuit, and refrigerant flows inside it, and is used to cool or heat the air flowing through the surface of the indoor heat exchanger 2. In the wall-mounted air conditioner 10000, the indoor heat exchanger 2 usually extends along the length direction of the housing 1. For example, the indoor heat exchanger 2 is a two-fold or three-fold heat exchanger, and each fold of the indoor heat exchanger 2 is a plate-like structure extending along the length direction.

[0089] Referring to Figure 3 and Figure 4 , the main body 1000 further includes: a base 3, and the base 3 is arranged 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 of the indoor air flowing through the indoor heat exchanger 2 is small.

[0090] Referring to Figure 4, the main body 1000 further includes: a heat exchange fan 41, which is arranged in the volute tongue air duct V03. In the solution of the present application, the heat exchange fan 41 can be selected as a cross-flow fan, which has low noise and a large air volume, and the air outlet speed of the cross-flow fan is relatively uniform along the axial direction of the cross-flow fan, which is beneficial to increasing the air supply distance and the air supply range. Moreover, by using a cross-flow fan and arranging the cross-flow fan along the length direction of the main body 1000, it is beneficial to drive the air flow to flow through the entire indoor heat exchanger 2, ensuring the balance of the heat exchange efficiency at each position of the indoor heat exchanger 2.

[0091] Referring to Figure 4 , the main body 1000 further includes: a first motor 42, which is arranged 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 perform heat exchange between the inside of the air conditioner and the indoor space.

[0092] By providing a heat exchange air outlet 102 and a heat exchange air inlet 101 on the casing 1, when the heat exchange fan 41 operates, the indoor air is sucked into the casing 1 from the heat exchange air inlet 101, and after heat exchange with the indoor heat exchanger 2, the heat-exchanged air is sent to the indoor through the heat exchange air outlet 102.

[0093] Thus, the indoor environmental temperature can be adjusted. The indoor heat exchanger 2 can be used as an evaporator to provide a cooling air flow towards the indoor space through the heat exchange air outlet 102, or the indoor heat exchanger 2 can be used as a condenser to provide a heating air flow towards the indoor space through the heat exchange air outlet 102.

[0094] In the solution of the present application, in the height direction of the main body 1000, the heat exchange air inlet 101 is located above the heat exchange air outlet 102, which 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.

[0095] It can be understood that the main body 1000 is usually installed on the wall. In order to avoid interfering with people's daily life, the position where the main body 1000 is hung is usually relatively high. By setting the main body 1000 to blow out the heat exchange air from below, the blown heat exchange air is not easily blocked by the roof and the ground. In this way, the resistance consumption during the blowing process of the heat exchange air is small, and the air supply range is wide, so that the heat exchange air can flow to the entire indoor space as soon as possible, improving the heat exchange efficiency.

[0096] 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, which can avoid intake air from the heat exchange air outlet 102, preventing the heat exchange air from being directly sucked into the heat exchange air inlet 101 after being blown out from the heat exchange air outlet 102, and reducing the process of the heat exchange air idling without participating in indoor heat exchange.

[0097] 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 aesthetic appearance.

[0098] In some embodiments, the heat exchange air outlet 102 is located directly in front of the housing 1, that is, the heat exchange air outlet 102 blows air towards the front side of the main body 1000. It can be understood that the side where the main body 1000 is usually connected to the wall is called the back or the rear side, and the side opposite to the rear side is called the front side. Therefore, when the heat exchange air outlet 102 is located directly in front of the housing 1, the air outlet is away from the wall, and the blowing resistance is small, and the air supply range is wide.

[0099] In some other embodiments, the heat exchange air outlet 102 is located at the front side of the housing 1 and close to the bottom, or it can be said that the heat exchange air outlet 102 is located at the front lower corner of the housing 1. At this time, while the heat exchange air blown out by the heat exchange air outlet 102 flows forward, it will also flow downward. In this way, after the heat exchange air is sent to a certain distance, the heat exchange air can sink and fall on people or objects on the ground, so that people or objects on the ground can quickly be in a comfortable indoor environment.

[0100] In the solution of the present application, the heat exchange fan 41 is located on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101. It can be understood that the heat exchange fan 41 is a power driving member that drives the indoor air to exchange heat with the indoor heat exchanger 2 by rotation, and is also a power driving member for air supply.

[0101] Placing the heat exchange fan 41 on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101 can evenly distribute the air power generated when the heat exchange fan 41 rotates. A part is distributed to the air inlet side to enable the inhaled air to overcome the wind resistance generated by the indoor heat exchanger 2 when flowing into the volute tongue air duct V03, and the other part is distributed to the air supply side to enable the heat-exchanged air to be blown out from the heat exchange air outlet 102 with a longer conveying distance.

[0102] In the solution of the present application, as Figure 4 shown, the first motor 42 is located at one end in the length direction of the main body 1000. This facilitates the installation and maintenance of the first motor 42, and the overall main body 1000 does not need to become too high or too thick due to the setting of the first motor 42. Here, the height direction of the main body 1000 is the same as the up and down direction, and the thickness direction of the main body 1000 is the same as the front and back direction.

[0103] In the solution of the present application, the wall-mounted air conditioner 10000 further includes a second motor 5 (as Figure 8 shown), the second motor 5 is arranged in the accommodation cavity V1, and the second motor 5 is located at the other end in the length direction of the main body 1000.

[0104] In this way, the first motor 42 and the second motor 5 are located at both ends of the main body 1000 in the length direction. On the one hand, the two motors are separated and far apart from each other, resulting in less electromagnetic interference. On the other hand, the two motors are arranged at both ends of the main body 1000 in the length direction, rather than in the thickness or height direction of the main body 1000, making the main body 1000 of the wall-mounted air conditioner 10000 slender in shape, with a slender, thin and light appearance.

[0105] Referring to Figure 9 and Figure 10 , the second motor 5 includes: a stator part 51 and a rotor part 52, and the stator part 51 and the rotor part 52 are the main parts of the second motor 5. The stator part 51 is wound with coils, and an alternating magnetic field is generated after alternating current is passed through the coils. The rotor part 52 generates induction and rotates in the alternating magnetic field.

[0106] Optionally, the rotor part 52 can be a magnetic ring or a magnetic tile, and the rotor part 52 is preferably a magnetic ring. In this way, magnetic leakage loss can be reduced, magnetic flux can be enhanced, and the power output efficiency of the second motor 5 can be improved. Moreover, when a magnetic ring is used, the magnetic field distribution is uniform, the anti-interference performance is good, and the mechanical precision is higher.

[0107] The second motor 5 is an outer rotor motor. In the radial direction of the stator part 51, the rotor part 52 is arranged around the outside of the stator part 51. Selecting an outer rotor motor for the second motor 5 not only has a simple structure, but also, since the rotor part 52 is arranged around the outside of the stator part 51 in the radial direction of the stator part 51, the diameter size of the rotor part 52 is large, and a large torque can be obtained, which can be used in scenarios such as low-speed high-torque and direct drive. That is, when the second motor 5 outputs power outward, a speed reducer does not need to be set to reduce speed and increase torque, saving the space occupied by the speed reducer.

[0108] In addition, the rotor part 52 is located radially outside the stator part 51, with a relatively large heat dissipation area and good heat dissipation performance, which is beneficial to the stable operation of the second motor 5. Moreover, after being arranged in this way, the diameter size of the second motor 5 can be controlled to be relatively small, without occupying the space of the air flow channel.

[0109] Referring to Figure 9 and Figure 10 , the second motor 5 further includes: a motor housing 53, and the motor housing 53 can support and protect the main part of the second motor 5.

[0110] The motor housing 53 is fixedly connected to the rotor part 52, and the motor housing 53 rotates synchronously with the rotor part 52. In this way, the rotor part 52 can be fixed by the motor housing 53, which is convenient for connecting with external structures.

[0111] The second motor 5 further includes: an output shaft 532, which is fixedly connected to the motor housing 53, and one end of the output shaft 532 extends along the axial direction of the motor housing 53 towards the side of the heat exchange fan 41, and the other end of the output shaft 532 extends into the stator portion 51. That is to say, the main body of the second motor 5 is separated from the indoor heat exchanger 2 and the heat exchange fan 41 by a certain distance, reducing the vibration transmitted from the operation of the second motor 5 to the indoor heat exchanger 2 and the heat exchange fan 41.

[0112] 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 inlet and radial air outlet, the fresh air fan 6 is located on the side of the heat exchange fan 41 away from the first motor 42, the fresh air fan 6 is located between the heat exchange fan 41 and the motor housing 53, and the fresh air fan 6 is connected to the output shaft 532 of the second motor 5.

[0113] Referring to Figure 8 , the wall-mounted air conditioner 10000 further includes: an exhaust fan 7, the exhaust fan 7 is a centrifugal fan with axial air inlet and radial air outlet, in the length direction of the main body 1000, the exhaust fan 7 is located on the side of the fresh air fan 6 towards the second motor 5, the exhaust fan 7 is sleeved on the radial outer side of the motor housing 53, and the exhaust fan 7 is fixedly connected to the motor housing 53. Among them, the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously in the working state.

[0114] The characteristics of the centrifugal fan itself include a compact structure, a large air volume, and low noise, and the fan noise decreases significantly when the rotational speed decreases. Therefore, the fresh air fan 6 and the exhaust fan 7 can select a centrifugal fan with a smaller size to meet the large air volume requirement. The centrifugal fan has small vibration and noise, and is not easy to resonate with the indoor heat exchanger 2, effectively controlling the overall vibration and noise of the wall-mounted air conditioner 10000.

[0115] Both the fresh air fan 6 and the exhaust fan 7 adopt centrifugal fans, and the air directions of the fresh air fan 6 and the exhaust fan 7 can be reasonably arranged. Specifically, the fresh air fan 6 has axial air inlet and radial air outlet, the exhaust fan 7 has axial air inlet and radial air outlet, 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 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 air volume, and reduce noise.

[0116] Referring 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.

[0117] 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.

[0118] In the solution of the present application, the fresh air volute 8 and the fresh air fan 6 constitute a fresh air module. The fresh air fan 6 is arranged inside the fresh air duct V01 and is used to drive the air flow to be inhaled from the fresh air inlet 801 and discharged to the room through the fresh air outlet 802. The operation of the fresh air fan 6 provides the power for the fresh air to flow. Thus, by setting the 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.

[0119] In the solution of the present application, the exhaust volute 9 and the exhaust fan 7 constitute an exhaust module. The exhaust fan 7 is arranged inside the exhaust duct V02 and is used to drive the 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 to flow.

[0120] Thus, by setting the cooperation of the exhaust duct V02 and the exhaust fan 7, when the air in the room is relatively dirty or the air quality is average, the dirty air flow in the indoor space can be sucked away and discharged by the exhaust fan 7. After the indoor air volume is reduced in this way, fresh air will be inhaled from the outside or from other rooms through doors and windows, etc. to reduce the degree of dirtiness of the indoor air.

[0121] 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. The two-way ventilation component is arranged 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.

[0122] 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 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 indoor dirty air flows to the outdoor space, the fresh air outside can also enter the indoor space. Through the combined air flow driving of one in and one out, it is beneficial to increase the improvement efficiency of the air flow in the indoor space, so as to meet the user's needs in time when the user urgently needs to discharge or update the indoor air.

[0123] Moreover, while discharging the indoor air to the outside, fresh outdoor air is replenished into the indoor, keeping the indoor air volume sufficient and making it easier to suck away the indoor air. For example, when there are irritating gases (such as gases released by home improvement materials), gas leakage of gas or other gases 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, the two-way ventilation component of the present application has a larger purification flow rate per unit time, higher ventilation efficiency and faster purification effect.

[0124] Moreover, during ventilation, it avoids the rapid change of indoor temperature caused by too fast ventilation like directly opening the window, and avoids causing discomfort to indoor personnel due to sudden rise or fall of temperature. And the position of the main body 1000 is relatively high, and the ventilation position will not cause discomfort due to being too close to people.

[0125] In other embodiments, the two-way ventilation component can operate the fresh air mode and the exhaust mode alternatively, 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.

[0126] 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.

[0127] In this embodiment, the second motor 5 is an external rotor motor. The second motor 5 includes: a stator part 51, a rotor part 52, a motor housing 53 and an output shaft 532. The stator part 51 has a wound coil. In the radial direction of the stator part 51, the rotor part 52 is arranged around the outside of the stator part 51. The motor housing 53 is fixedly connected to the rotor part 52. The output shaft 532 is fixedly connected to the motor housing 53. One end of the output shaft 532 extends along the axial direction of the motor housing 53 toward the side of the heat exchange fan 41, and the other end of the output shaft 532 extends into the stator part 51 along the axial direction of the motor housing 53.

[0128] In this embodiment, 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 motor housing 53, and the fresh air fan 6 is connected to the output shaft 532 of the second motor 5.

[0129] In this embodiment, the exhaust fan 7 is a centrifugal fan with axial air intake and radial air outlet. In the longitudinal direction of the main body 1000, the exhaust fan 7 is located on the side of the fresh air fan 6 facing the second motor 5. The exhaust fan 7 is sleeved on the radial outer side of the motor housing 53, and the exhaust fan 7 is fixedly connected to the motor housing 53. The second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously in the working state.

[0130] In this embodiment, as Figure 8 shown, a fresh air duct V01 is formed in the fresh air volute 8. The fresh air fan 6 is installed in the fresh air volute 8. As Figure 6 shown, 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.

[0131] In this embodiment, as Figure 8 shown, 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 in the exhaust volute 9. The exhaust fan 7 is installed in the exhaust volute 9. An exhaust air inlet 901 and an exhaust air outlet 902 are formed on the exhaust volute 9. When the exhaust fan 7 rotates, indoor air can enter the exhaust volute 9 from the exhaust air inlet 901, and the indoor air entering the exhaust volute 9 can be discharged to the outside from the exhaust air outlet 902.

[0132] In this embodiment, the second motor 5 is located at the end of the main body 1000 in the longitudinal direction, and the axis of the second motor 5 is arranged along the longitudinal direction of the main body 1000. The second motor 5 is the common power source of the fresh air module and the exhaust air module of the two-way ventilation component. To ensure the operation of the fresh air module and the exhaust air module, the second motor 5 needs to have sufficient operating power to drive sufficient air volume flow. Based on the power requirement of the second motor 5, the second motor 5 needs to be of sufficient large size.

[0133] 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.

[0134] In this embodiment, the centrifugal fan itself is relatively flat in the axial direction. Stacking the fresh air fan 6 and the exhaust air fan 7 in this way 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 do not need to have too large a gap between them. The axial distance between the fresh air fan 6 and the exhaust air fan 7 can be arranged relatively close.

[0135] It should be noted that when referring to "axial direction", "radial direction", and "circumferential direction" when describing the internal structure of the two-way ventilation component, 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.

[0136] In the above solution, by using an outer rotor motor for the second motor 5, the exhaust air fan 7 is sleeved on the radial outside of the motor housing 53, and a part of the second motor 5 in the motor housing 53 is embedded in the exhaust air fan 7, and a part of the output shaft 532 is embedded in the fresh air fan 6, so that the second motor 5 almost overlaps with the exhaust air fan 7 and the fresh air fan 6 in the length direction of the main body 1000, so that the parts of the exhaust air fan 7 and the fresh air fan 6 located outside the second motor 5 in the axial direction are less, and the overall axial dimension of the two-way ventilation component is close to the axial dimension of the second motor 5, so that the length dimension of the main body 1000 is controllable.

[0137] Among them, the main body part of the second motor 5 is located in the exhaust air fan 7, rather than in the fresh air fan 6, which can give more air flow space to the fresh air duct V01 and is beneficial to the intake of fresh air. It can be understood that when the wall-mounted air conditioner 10000 is in the cooling state, the fresh air module inhales fresh air from the outside to the inside, and the cold generated by the wall-mounted air conditioner 10000 can still remain in the room, with little cold loss.

[0138] In this embodiment, the indoor air is discharged to the outside through the exhaust air module. By setting the exhaust air volume to be less than the fresh air volume, the cold 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.

[0139] And precisely because the second motor 5 adopts an outer rotor motor that can adapt to low-speed, high-torque, direct drive and other scenarios, there is no need to set a reducer, and the exhaust fan 7 can be directly mounted on the radially outer side of the motor housing 53. This not only avoids the reducer from increasing the overall axial size, but also avoids the reducer from increasing the difficulty of structural layout. Only by fixing the exhaust fan 7 to the motor housing 53 and connecting the fresh air fan 6 to the output shaft 532 of the second motor 5, the exhaust fan 7 and the fresh air fan 6 can be coaxially stacked and arranged, so that the two can rotate synchronously and maintain a small gap, without the need for too large a spacing. This also ensures that the overall axial size of the two-way ventilation assembly is close to the axial size of the second motor 5, and the length of the main body 1000 is controllable.

[0140] In this embodiment, the fresh air fan 6 is arranged on the side of the exhaust fan 7 facing the indoor heat exchanger 2, which can reduce the indoor cold or heat loss and improve the comfort when the fresh air is blown into the room. Specifically, the fresh air module where the fresh air fan 6 is located is close to the indoor heat exchanger 2, and the fresh air sucked from the outside can absorb the cold or heat released by the indoor heat exchanger 2 before blowing into the room, so that the fresh air is as close to the indoor temperature as possible before blowing into the room.

[0141] In this way, when the wall-mounted air conditioner 10000 is cooling, the fresh air absorbs the coldness of the indoor heat exchanger 2, and the temperature of the fresh air blown in is reduced, so as to avoid blowing the outdoor hot air directly into the room. When the wall-mounted air conditioner 10000 is heating, the fresh air absorbs the heat of the indoor heat exchanger 2, and the temperature of the fresh air blown in is increased, so as to avoid blowing the outdoor cold air directly into the room. The exhaust module where the exhaust fan 7 is located is far from the indoor heat exchanger 2, and the coldness or heat absorbed from the indoor heat exchanger 2 after absorbing air from the room is small, and the coldness or heat loss discharged to the outside is small.

[0142] In this embodiment, the fresh air fan 6 is arranged on the side of the exhaust fan 7 facing the indoor heat exchanger 2, and when the indoor heat exchanger 2 is cooled, the condensed water can also be reduced from entering the air duct. Specifically, the exhaust volute 9 of the exhaust module, its exhaust air inlet 901 takes in air from the room, and the exhaust fan 7 takes in air along the axial direction, so the exhaust air inlet 901 is located on the side of the exhaust volute 9 away from the indoor heat exchanger 2. When there is condensed water on one side of the indoor heat exchanger 2, the condensed water is not easily sucked into the exhaust duct V02 by the exhaust module, reducing the risk of water accumulation and bacterial growth in the exhaust duct V02. When the fresh air module rotates, the fresh air fan 6 takes in air from the outside, and at this time, the condensed water on the indoor heat exchanger 2 will not be sucked into the fresh air duct V01, reducing the risk of water accumulation and bacterial growth in the fresh air duct V01.

[0143] In addition, in this embodiment, the exhaust fan 7 is located on the side of the fresh air fan 6 away from the indoor heat exchanger 2. For the exhaust fan 7 that needs to intake air from the room, the intake air energy consumption it needs is relatively low. Specifically, when the wall-mounted air conditioner 10000 is cooling or heating, the heat exchange fan 41 operates to drive the indoor inhaled air to flow through the indoor heat exchanger 2. The exhaust fan 7 is located at the end of the main body 1000. The air inlet end of the exhaust fan 7 is relatively far from the air inlet end of the heat exchange fan 41. The exhaust fan 7 does not need to suck air from the air inlet end of the heat exchange fan 41, and the air intake energy consumption of the exhaust fan 7 can be reduced. In this way, sufficient exhaust air volume can be ensured, and it can also ensure that there is sufficient indoor air flowing through the indoor heat exchanger 2 to obtain sufficient heat exchange air, so that the overall energy consumption of the wall-mounted air conditioner 10000 will not be too high.

[0144] 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 spatial characteristics to complete the flat design. This not only reduces the overall size and weight of the two-way ventilation component, making the two-way ventilation component overall light and compact, and the air ducts do not interfere with each other. The two-way ventilation component is arranged at one end in the length direction of the main body 1000. Compared with the main body without the two-way heat exchange component, only the lateral length is increased, and the height and thickness of the main body 1000 can generally remain unchanged or change little, making the main body 1000 thin and light in appearance. When hung on the wall, it will not affect the indoor space layout due to being too obtrusive, nor will it be difficult to fix the wall-mounted air conditioner 10000 due to being too heavy, reducing the risk of falling off the wall. The wall-mounted air conditioner 10000 as a whole is still a thin and light model. When hung on the wall, it is not only beautiful, but also has controllable weight and safe to use.

[0145] In the solution of this application, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000. It can be understood that the fresh air inlet 801 needs to be connected to a pipe to introduce outdoor air. Here, this pipe is called the fresh air inlet pipe 141 (as Figure 2 shown). The fresh air inlet pipe 141 can be a part of the wall-mounted air conditioner 10000, or it can be a fresh air inlet pipe 141 separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0146] The fresh air inlet 801 is provided below the main body 1000. In this way, the fresh air inlet pipe 141 can be connected to the fresh air inlet 801 from below, and the connection part extends generally in the up-down direction instead of in the front-back direction to make the main body 1000 too thick. Thus, the wall-mounted air conditioner 10000 can still maintain a thin and light appearance. Moreover, the part of the fresh air volute 8 where the fresh air fan 6 is installed is circular. Based on the axis of the fresh air volute 8 extending along the length direction of the main body 1000, there is free space on both the front side and the rear side at the bottom of this circle. This part of the space can be used to set the fresh air inlet 801 to connect the fresh air inlet pipe 141. Thus, the connection part between the fresh air inlet pipe 141 and the fresh air inlet 801 can be placed in this free space without occupying additional space, so that the height dimension of the main body 1000 can be controlled.

[0147] In the solution of this application, in the height direction of the main body 1000, the exhaust air outlet 902 is located below the main body 1000. It can be understood that the exhaust air outlet 902 needs to be connected to a pipe to guide the indoor air to the outside. Here, this pipe is called the exhaust air outlet pipe 142 (as Figure 2 shown). The exhaust air outlet pipe 142 can be a part of the wall-mounted air conditioner 10000, or an exhaust air outlet pipe 142 additionally configured by the user after purchasing the wall-mounted air conditioner 10000.

[0148] The exhaust air outlet 902 is provided below the main body 1000. In this way, the exhaust air outlet pipe 142 can be connected to the exhaust air outlet 902 from below, and the connection part extends generally in the up-down direction instead of in the front-back direction to make the main body 1000 too thick. Thus, the wall-mounted air conditioner 10000 can still maintain a thin and light appearance. Moreover, the part of the exhaust air volute 9 where the exhaust air fan 7 is installed is circular. Based on the axis of the exhaust air volute 9 extending along the length direction of the main body 1000, there is free space on both the front side and the rear side at the bottom of this circle. And based on the characteristics of the axial air inlet and radial air outlet of the exhaust air fan 7, the volute tongue of the exhaust air volute 9 can be arranged generally in the up-down direction and can be placed in the front-side or rear-side free space mentioned above.

[0149] Here, the exhaust air outlet 902 is provided to connect the exhaust air outlet pipe 142. Thus, the connection part between the exhaust air outlet pipe 142 and the exhaust air outlet 902 can be placed in this free space without occupying additional space, so that the height dimension of the main body 1000 can be controlled.

[0150] In some specific embodiments, such as Figure 2As shown, the wall-mounted air conditioner 10000 further includes: a fresh air inlet pipe 141 connected to the fresh air inlet 801, and an exhaust air outlet pipe 142 connected to the exhaust air outlet 902. An avoidance opening 104 for the pipes is provided on the bottom wall of the housing 1. The fresh air inlet pipe 141 and the exhaust air outlet pipe 142 pass through the avoidance opening 104 for the pipes and extend out from below the main body 1000. The fresh air inlet pipe 141 and the exhaust air outlet pipe 142 are two independent pipe components, which helps to separate the fresh air flow path and the exhaust air flow path from each other, without crossing, and reduces the risk of air leakage caused by cross-flow.

[0151] The avoidance opening 104 for the pipes is provided on the bottom wall of the main body 1000, which facilitates the installation of the above pipes and ensures the beautiful appearance of the main body 1000. The fresh air inlet pipe 141 and the exhaust air outlet pipe 142 are connected from below the main body 1000, which does not affect the upper area after the wall-mounted air conditioner 10000 is hung on the indoor wall. That is, the fresh air inlet pipe 141 and the exhaust air outlet pipe 142 will neither interfere with the rear wall nor interfere with the upper roof. The wall-mounted air conditioner 10000 is more convenient and fast to install.

[0152] Furthermore, the air inlet direction of the fresh air inlet 801 is set upward. Specifically, the air inlet direction of the fresh air inlet 801 is perpendicular to the length direction of the main body 1000. In this way, after the two-way ventilation component is provided at the end of the wall-mounted air conditioner 10000, when the fresh air inlet pipe 141 is connected to the fresh air inlet 801, the fresh air inlet pipe 141 will not cause the overall wall-mounted air conditioner 10000 to be overly elongated. Further, the fresh air inlet 801 is located at the bottom of the main body 1000 and close to the rear side. In this way, after the fresh air inlet pipe 141 is connected to the fresh air inlet 801, it is convenient for the fresh air inlet pipe 141 to be arranged close to the wall.

[0153] Furthermore, the air outlet direction of the exhaust air outlet 902 is set downward. Specifically, the air outlet direction of the exhaust air outlet 902 is perpendicular to the length direction of the main body 1000. In this way, after the two-way ventilation component is provided at the end of the wall-mounted air conditioner 10000, when the exhaust air outlet pipe 142 is connected to the exhaust air outlet 902, the exhaust air outlet pipe 142 will not cause the overall wall-mounted air conditioner 10000 to be overly elongated. Further, the exhaust air outlet 902 is located at the bottom of the main body 1000 and close to the rear side. In this way, after the exhaust air outlet pipe 142 is connected to the exhaust air outlet 902, it is convenient for the exhaust air outlet pipe 142 to be arranged close to the wall.

[0154] Of course, the solution of this application is not limited to this, such as Figure 1As shown, the pipe diversion avoidance opening 104 can also be provided on the side wall of the housing 1. After the fresh air inlet pipe 141 is connected to the fresh air inlet 801 from below the main body 1000, it bends and extends horizontally, then extends out from the pipe diversion avoidance opening 104 on the side wall of the housing 1, and then extends to the outside. The exhaust air outlet pipe 142 is connected to the exhaust air outlet 902 from below the main body 1000, bends and extends horizontally, then extends out from the pipe diversion avoidance opening 104 on the side wall of the housing 1, and then extends to the outside.

[0155] It can be understood that a refrigerant pipe and a drain pipe are usually provided at one end of the main body 1000 in the length direction. The refrigerant pipe is used to connect the indoor heat exchanger 2 with the outdoor compressor and outdoor heat exchanger, and the drain pipe is used to discharge the condensed water generated in the wall-mounted air conditioner 10000.

[0156] By providing the pipe diversion avoidance opening 104 on the side wall of the housing 1 and then horizontally arranging and leading out the fresh air inlet pipe 141 and the exhaust air outlet pipe 142, it is convenient to juxtapose at least one of the fresh air inlet pipe 141 and the exhaust air outlet pipe 142 with the drain pipe and the refrigerant pipe. Then, the juxtaposed multiple pipes are covered by an outer bundle pipe or a band, so that the multiple pipes form a single 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 not only facilitates assembly but also avoids the risk of multiple pipes bumping against each other.

[0157] In some embodiments, as Figure 8 and Figure 11 shown, the exhaust fan 7 forms a receiving groove V07 at the center in the radial direction, and at least a part of the stator portion 51, at least a part of the rotor portion 52, and at least a part of the motor housing 53 of the second motor 5 are received in the receiving groove V07.

[0158] Specifically, the hub of the exhaust fan 7 forms the receiving groove V07. At this time, the main body part (i.e., the stator portion 51 and the rotor portion 52) of the second motor 5 and the motor housing 53 can be placed at the center of the exhaust fan 7, which will not hinder the flow of the exhaust air, and can make full use of the hub space of the exhaust fan 7 to reduce the occupied space of the second motor 5 outside.

[0159] Moreover, after the hub of the exhaust fan 7 is sleeved outside the second motor 5, it 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. Therefore, the bending moment generated by the exhaust fan 7 on the second motor 7 is small, the exhaust fan 7 shakes less when rotating, the exhaust fan 7 operates stably and has low energy consumption.

[0160] In some embodiments, as Figure 1 shown, a housing air outlet 105 is provided on the housing 1. The housing air outlet 105 is provided 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.

[0161] In some specific embodiments, the fresh air outlet 802 is located directly in front of the main body 1000, and the casing air outlet 105 can correspondingly be arranged on the front side of the casing 1, so as to facilitate the output of fresh air from directly in front of the main body 1000. When the wall-mounted air conditioner 10000 is installed on a wall, especially at a high position on the wall, there are fewer obstacles in the direct front, and blowing air from the direct front can ensure a relatively large air supply area for the fresh air.

[0162] In some other specific embodiments, the fresh air outlet 802 is located at the top of the main body 1000, and the casing air outlet 105 can correspondingly be arranged on the top wall of the casing 1. In this way, the fresh air is directed towards the roof for blowing, and the roof can be utilized to guide the flow direction of the fresh air, enabling the fresh air to flow along the roof and expanding the air supply area.

[0163] Moreover, since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the position of the heat exchange air inlet 101 on the casing 1 is relatively high, a part of the fresh air blown out from the top by the fresh air outlet 802 can be inhaled again through the heat exchange air inlet 101 into the accommodation cavity V1 and flow through the indoor heat exchanger 2.

[0164] Such an arrangement is beneficial in that on the one hand, it helps the fresh air to quickly reach the room temperature and improves the comfort when the fresh air is blown in, and on the other hand, it is conducive to the full mixing of the fresh air with the indoor air flowing through the indoor heat exchanger 2. In this way, the air blown out to the room through the heat exchange air outlet 102 is overall fresh, improving the uniformity of the distribution of the fresh air in the room.

[0165] In still some other 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. The casing air outlet 105 can correspondingly be arranged below the casing 1.

[0166] Since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the position of the heat exchange air outlet 102 on the casing 1 is relatively low, when the fresh air outlet 802 blows out fresh air from below, the air outlet area of the casing air outlet 105 is close to or even partially overlaps with the air outlet area of the heat exchange air outlet 102. This is beneficial for the mixing of the fresh air with the indoor air after heat exchange. On the one hand, it improves the uniformity of the mixing of the fresh air in the indoor air, and on the other hand, the fresh air can absorb the cold or heat of the indoor air after heat exchange, making the temperature of the fresh air tend to the indoor temperature and improving the blowing comfort.

[0167] Moreover, the air outlet direction of the fresh air outlet 802 is opposite to the air inlet direction of the heat exchange air inlet 101, so that the fresh air will not be inhaled into the heat exchange air inlet 101, reducing the proportion of the air intake volume of the fresh air at the heat exchange air inlet 101, making the total air output volume of the wall-mounted air conditioner 10000 relatively large, and improving the overall circulation efficiency of the indoor air.

[0168] Moreover, the fresh air outlet 802 is located below the main body 1000, close to the activity space of people, which is convenient for people to observe the fresh air outlet condition. In this way, the visual effect of fresh air outlet is achieved, which is beneficial to improving people's experience and perception.

[0169] Specifically, when the fresh air outlet 802 is located below the main body 1000, it is usually located at the front side below the main body 1000, so that the fresh air can flow forward and downward, ensuring that the fresh air can reach the ground and also ensuring that the fresh air can reach a sufficient distance.

[0170] Optionally, as Figure 1 and Figure 3 shown, a guide grille 16 is provided at the air outlet 105 of the housing 1 to adjust the air outlet direction of the fresh air.

[0171] 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 air inlet resistance of the exhaust fan 7 from the exhaust air inlet 901 is small, which is beneficial to ensuring the exhaust air inlet volume. When the exhaust air inlet is relatively easy, a smaller-sized exhaust fan 7 can be selected to further reduce the size of the two-way ventilation component.

[0172] In some embodiments, as Figure 1 shown, an air inlet 103 of the housing 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 at the top of the main body 1000. A first continuous ventilation duct V04 is formed between the air inlet 103 of the housing and the exhaust air inlet 901. The rotation of the exhaust fan 7 drives the indoor air to enter the first continuous ventilation duct V04 from the air inlet 103 of the housing, and makes the indoor air enter the exhaust air volute 9 through the exhaust air inlet 901.

[0173] 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 flow is only sucked in from the top by the wind pressure. The air inlet 103 of the housing is located at the top of the housing 1, that is, in the area that users cannot see, hiding the air inlet 103 of the housing can improve the appearance beauty.

[0174] In other embodiments, an air inlet 103 of the housing 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 rotation of the exhaust fan 7 drives the indoor air to enter the interior of the housing 1 from the air inlet 103 of the housing, and makes the indoor air enter the exhaust air 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.

[0175] On the one hand, the air inlet path from the air inlet 103 of the housing to the air inlet 901 of the exhaust is shortened, and the air inlet path from the air inlet 103 of the housing to the air inlet 901 of the exhaust 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 volume.

[0176] In some embodiments, the exhaust fan 7 can be a plastic part, so that it is light in weight and low in cost. Of course, the solution of the present application is not limited to this, and the exhaust fan 7 can also be a resin part, a metal part, etc.

[0177] In some embodiments, the fresh air fan 6 can be a plastic part, so that it is light in weight and low in cost. Of course, the solution of the present application is not limited to this, and the fresh air fan 6 can also be a resin part, a metal part, etc.

[0178] Similarly, the exhaust volute 9 can be a plastic part, so that it is light in weight and low in cost. Optionally, the exhaust volute 9 can be an injection molded part. Of course, the solution of the present application is not limited to this, and the exhaust volute 9 can also be a metal part, etc.

[0179] The fresh air volute 8 can be a plastic part, so that it is light in weight and low in cost. Optionally, the fresh air volute 8 can be an injection molded part. Of course, the solution of the present application is not limited to this, and the fresh air volute 8 can also be a metal part, etc.

[0180] 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 extend along the axial direction of the exhaust wheel disc 71 away from the fresh air fan 6.

[0181] Wherein, the exhaust fan 7 further includes a convex portion 74 provided on the exhaust wheel disc 71. The center of the convex portion 74 is located on the axis of the exhaust fan 7, and the convex portion 74 extends in the direction towards the fresh air fan 6 relative to the exhaust wheel disc 71, so that a receiving groove V07 for the second motor 5 is formed on the side of the convex portion 74 close to the second motor 5, and at least a part of the stator portion 51 and at least a part of the rotor portion 52 are accommodated in the receiving groove V07.

[0182] 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, and the first volute 81 is located between the exhaust volute 9 and the second volute 82. A volute cavity V011 is formed between the second volute 82 and the first volute 81, and the fresh air fan 6 is located in the volute cavity V011.

[0183] Referring to Figure 14 , the first volute 81 includes a first volute end plate 811 and a first volute shroud 812, and the first volute shroud 812 extends along the edge of the first volute end plate 811 in the direction of the heat exchange fan 41.

[0184] Wherein, a recessed portion 813 facing the inside of the fresh air fan 6 is formed in the central part area of the first volute end plate 811, and a perforated portion 814 is provided at the center of the recessed portion 813. At least a part of the protruding portion 74 is located in the recessed portion 813, and the output shaft 532 is connected to the fresh air fan 6 through the perforated portion 814.

[0185] In this application, 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 difficulties, and for such a complex housing, it is convenient to carry out quality control after separate manufacturing. The first volute 81 is detachably connected to the exhaust volute 9, and the second volute 82 is detachably connected to the first volute 81, which is convenient for assembly and also convenient for subsequent adjustment and maintenance.

[0186] A protruding portion 74 is provided at the center of the exhaust wheel disc 71, and a recessed portion 813 is formed at the center of the first volute end plate 811. On the one hand, the hub of the exhaust fan 7 is used to form the protruding portion 74 to accommodate the second motor 5, and the protruding portion 74 can improve the structural strength of the exhaust fan 7. On the other hand, the main body portion of the second motor 5 is assembled in the protruding portion 74, occupying more of the exhaust air duct V02 and less of the fresh air duct V01, which matches the design that the fresh air volume is greater than the exhaust air volume. Only the output shaft 532 passes through the first volute end plate 811, which helps with sealing, reduces the chance of mutual flow between the fresh air and the exhaust air, and reduces air flow disturbance.

[0187] In the solution of this application, in order to make the wall-mounted air conditioner 10000 more safe and reliable, the external dimensions of the main body 1000 are strictly controlled. In this way, not only are the internal part clearances small and not easy to loosen, but also each air duct can be designed shorter, the size of the housing 1 is reduced, thereby reducing the overall weight of the main body 1000, making it safer to hang on the wall and more lightweight visually.

[0188] In some embodiments, referring to Figure 8, the exhaust air volute 9 is connected to the fresh air volute 8. The first volute end plate 811 is shared between the two, and the fresh air duct V01 and the exhaust air duct V02 are separated by the first volute end plate 811. Such a setting enables there to be no need for a gap between the exhaust air volute 9 and the fresh air volute 8, further reducing the axial dimension of the two-way ventilation component and the occupied space within the wall-mounted air conditioner 10000, which is conducive to the overall thin and light design of the wall-mounted air conditioner 10000.

[0189] Optionally, the first volute end plate 811 is a single-layer plate, which makes the structure simple and is conducive to reducing the overall axial dimension.

[0190] In some embodiments, referring to Figure 8 , Figure 11 and Figure 14 , the exhaust air fan 7 includes: an exhaust air wheel disc 71 and exhaust air blades 72. The exhaust air wheel disc 71 is coaxially arranged with the second motor 5 and is connected to the motor housing 53 of the second motor 5. The exhaust air blades 72 are multiple pieces, and the exhaust air blades 72 are arranged on the exhaust air wheel disc 71 and only extend in a direction away from the fresh air fan 6. The multiple exhaust air blades 72 are arranged circumferentially on the exhaust air wheel disc 71. That is to say, the exhaust air fan 7 includes single-layer centrifugal blades. In this way, when meeting the requirement of small air volume, the structure of the exhaust air fan 7 is simple and the cost is low. Moreover, the blade cylinder formed after the exhaust air blades 72 are arranged 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 air.

[0191] In some specific embodiments, referring to Figure 5 , Figure 8 and Figure 15 , the second volute 82 includes: a second volute half 821 and a blower housing 822. The second volute half 821 is located on the side of the first volute 81 facing the heat exchange fan 41 and 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.

[0192] The blower housing 822 is located on the side of the second volute half 821 facing the heat exchange fan 41 and is detachably connected to the second volute half 821. Referring 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 enclose a fresh air inlet 801.

[0193] After being set like this, a fresh air cavity V012 is formed at the air inlet end of the fresh air fan 6. The formed fresh air cavity V012 can cover the axial air inlet end of the fresh air fan 6, and the fresh air cavity V012 can be used to accommodate air, so that the air can enter the fresh air fan 6 vertically along the axis from the fresh air cavity V012, thereby improving the air suction efficiency of the fresh air fan 6 and reducing the air suction loss.

[0194] Among them, the fan cover 822 is located on the side of the second volute half 821 facing the indoor heat exchanger 2, so that the volute cavity V011 can be separated from the indoor heat exchanger 2. When the indoor heat exchanger 2 is refrigerating, the indoor heat exchanger 2 can absorb the heat in the fresh air cavity V012, gradually reducing the fresh air temperature. And due to the separation by the fan cover 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 generate condensed water.

[0195] In this way, the inhaled fresh air can be cooled without being supercooled to generate 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 is heating, 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.

[0196] In some embodiments, referring to Figure 3 , the wall-mounted air conditioner 10000 further includes: a purification member 11, referring to Figure 8 , the purification member 11 is arranged in the fresh air duct V01, so that the fresh air blown into the room is purified, improving the cleanliness of the indoor air.

[0197] Specifically, the purification member 11 is installed in the fresh air cavity V012, that is to say, the purification member 11 is located at the axial air inlet end of the fresh air fan 6. The rotation of the fresh air fan 6 can make the outdoor air enter the fresh air volute 8 from the fresh air inlet 801, and can make the outdoor air entering the fresh air volute 8 blow through the purification member 11 and then enter the room from the fresh air outlet 802.

[0198] In this way, the fresh air flow can almost vertically pass through the purification member 11, and the fresh air inlet consumption can be further reduced, thereby increasing the fresh air volume. And 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 member 11 when the air flows through the purification member 11, further avoiding the situation of water blowing when the fresh air module blows out air.

[0199] Further, the purification member 11 is connected to the second volute 82, which facilitates the assembly of the purification member 11 and prevents interference with the fresh air fan 6.

[0200] Optionally, as Figure 15 shown, the purification member 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 covering area and a large filtering area, resulting in a good filtering effect. The setting of the filter net 111 helps to ensure sufficient contact area with the flowing air, and it is light in weight and has 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. When the fresh air fan 6 rotates, outdoor air can enter the fresh air cavity V012 from the fresh air inlet 801, and the outdoor air entering the fresh air cavity V012 can be blown through the filter net 111, then enter the volute cavity V011 through the axial ventilation opening 8211, and then enter the room from the fresh air outlet 802.

[0201] In some embodiments, the air inlet direction of the fresh air inlet 801 is parallel to the filter net 111, and the air inlet direction of the axial ventilation opening 8211 is perpendicular to the filter net 111. After the outdoor air enters the fresh air cavity V012 from the fresh air inlet 801, it stays briefly on the side of the filter net 111 facing the heat exchange fan 41, and then passes through the filter net 111 of the purification member 11 and reaches the fresh air fan 6 through the axial ventilation opening 8211. When the fresh air fan 6 rotates, a vortex is generated, so that the air further enters the room through the fresh air outlet 802.

[0202] Optionally, the filter net 111 is plate-shaped, so that the overall filter net 111 is relatively thin and will not occupy too much thickness when placed in the two-way ventilation component.

[0203] Optionally, the filter net 111 is square, which facilitates the positioning and installation of the filter net 111.

[0204] Further, 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 fresh air flows entering the axial ventilation opening 8211 to pass through the filter net 111, resulting in high filtering cleanliness.

[0205] In some embodiments, the fresh air volute 8 is further provided with an installation opening 803, and the purification member 11 is detachably assembled in the installation opening 803. This facilitates the disassembly of the purification member 11 when it is damaged or saturated, which is convenient for maintenance or replacement.

[0206] Specifically, as Figure 15As shown, the installation opening 803 is formed between the blower housing 822 and the second volute half 821. The purification component 11 is detachably assembled in the fresh air chamber V012 through the installation opening 803. In this way, the size of the installation opening 803 can be set relatively large, facilitating the installation of a relatively large purification component 11. When the size of the installation opening 803 is large, the installation opening 803 is formed by the blower housing 822 and the second volute half 821. The blower housing 822 and the second volute half 821 respectively form open half-ports, which is convenient for processing or demolding and results in a low forming rejection rate.

[0207] Specifically, as Figure 3 shown, in the front-back direction of the main body, the installation opening 803 is located on the front side of the main body 1000. When the purification component 11 is disassembled, it can be free from the interference of the pipelines connected to the fresh air inlet 801 and the exhaust outlet 902, facilitating the operation during disassembly. Optionally, a switchable panel (not shown in the figure) is provided on the front side of the housing 1. When the panel is opened or rotated upward, the installation opening 803 can be exposed, facilitating the disassembly of the purification component 11.

[0208] It is not excluded that in some solutions, the installation opening 803 is provided at the bottom of the main body 1000.

[0209] In some embodiments, as Figure 6 shown, a purification air inlet 804 for communicating with the interior is formed on the fresh air volute 8. When the fresh air fan 6 rotates, indoor air can enter the fresh air volute 8 from the purification air inlet 804 to be purified by the purification component 11, and the indoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802. In this way, indoor air can enter the fresh air duct V01 from the purification air inlet 804, be purified, and then enter the room from the fresh air outlet 802.

[0210] With such a setting, when the indoor air is dirty, the circulation of indoor air can be realized, and purification can be carried out 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, cold or hot air that has not been heat-exchanged outdoors will not be suddenly blown into the room during indoor air purification, avoiding discomfort caused by a sudden change in indoor temperature.

[0211] Specifically, as Figure 6 shown, the purification air inlet 804 is located at the bottom of the fresh air volute 8 and is oriented downward. It can be understood that the fresh air inlet 801 is located below the main body 1000. Both the fresh air inlet 801 and the purification air inlet 804 are located at the bottom of the fresh air volute 8 and are oriented downward, which is convenient for processing and forming. Moreover, during use, one of them is selected to be opened. At this time, both the fresh air inlet 801 and the purification air inlet 804 are placed at the bottom of the fresh air volute 8, facilitating the centralized setting of switches to select one of the inlets to open and reducing the number of switches.

[0212] 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 can be understood that by making the air inlet direction of the purification air inlet 804 perpendicular to the length direction of the main body 1000, the air suction area of the purification air inlet 804 is far from the exhaust air inlet 901, avoiding excessive air suction energy consumption caused by the too-close distance between the purification air inlet 804 and the exhaust air inlet 901. Moreover, the different directions of the purification air inlet 804 and the exhaust air inlet 901 are helpful for expanding the negative pressure area, facilitating the inflow of a large amount of indoor air into the negative pressure area, and ensuring the exhaust air volume and the fresh indoor air volume.

[0213] In some embodiments, as Figure 5 and Figure 8 shown, the exhaust air volute 9 includes a wind guiding ring 91. The wind guiding ring 91 is in the shape of a circular tube, and the diameter of the wind guiding ring 91 gradually decreases in the direction towards the heat exchange exhaust fan 7. The area surrounded by the wind guiding ring 91 forms the exhaust air inlet 901. The setting of the wind guiding ring 91 can effectively collect the dispersed air flow, converge it into a relatively concentrated air flow and send it into the exhaust fan 7, making the air inlet smoother and more efficient, and increasing the air inlet volume of the exhaust fan 7.

[0214] Moreover, after the shape and angle of the wind guiding ring 91 are reasonably designed, 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 wind guiding 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.

[0215] Specifically, as Figure 8 shown, the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust wheel disc 71 is connected to the motor housing 53 of the second motor 5. The exhaust blades 72 are connected to the side of the exhaust wheel disc 71 far from the heat exchange fan 41. The exhaust blades 72 are multiple and arranged circumferentially.

[0216] As Figure 8 and Figure 11 shown, the edge of the exhaust blade 72 far from the exhaust wheel disc 71 is the blade side edge 721. The part of the blade side edge 721 close to the second motor 5 has a decreasing distance from the exhaust wheel disc 71. All the exhaust blades 72 form a side edge depression 723 at the place where the distance of the blade side edge 721 decreases. The end of the wind guiding ring 91 is located in the side edge depression 723.

[0217] That is to say, the exhaust blades 72 of the exhaust fan 7 are concave blades, the air guide ring 91 and the concave blades both concave towards the fresh air fan 6, and the air guide ring 91 partially enters the side edge recess 723 formed by the concave blades. With such a setting, the air guide ring 91 and the exhaust fan 7 can partially overlap axially, and the axial dimension of the exhaust volute 9 does not need to be increased on the premise of setting the air guide ring 91.

[0218] In some embodiments, as Figure 4 shown, the indoor heat exchanger 2 and the heat exchange fan 41 are installed on the base 3. End plates 31 are provided at both lateral ends of the base 3, both ends of the indoor heat exchanger 2 are installed on the two end plates 31, and both ends of the heat exchange fan 41 are installed on the two end plates 31.

[0219] In some embodiments, the air inlet 103 of the casing is located on the top wall of the main body 1000. Since the wall-mounted air conditioner 10000 is hung high on the wall, the air inlet 103 of the casing located on the top wall of the main body 1000 is not easily visible to people's sight, so that the appearance of the main body 1000 can be kept beautiful.

[0220] In some embodiments, as Figure 8 、 Figures 12 - 14 and Figures 16 - 19 shown, the fresh air fan 6 may include: a fresh air wheel disc 61, and the fresh air wheel disc 61 is coaxially arranged with the second motor 5. The second motor 5 drives the fresh air fan 6 by driving the fresh air wheel disc 61 to rotate. Specifically, the fresh air wheel disc 61 is connected to the output shaft 532 of the second motor 5. When the output shaft 532 and the motor housing 53 rotate synchronously with the rotor part 52, the fresh air fan 6 can be driven to rotate synchronously.

[0221] In some embodiments, as Figure 8 、 Figures 12 - 14 and Figures 16 - 19 shown, the fresh air fan 6 may further include fresh air blades 62, the fresh air blades 62 are connected to the fresh air wheel disc 61, and the fresh air blades 62 extend along the axial direction of the fresh air wheel disc 61.

[0222] In some embodiments, as Figure 8 、 Figures 12 - 14 and Figures 17 - 19 shown, the fresh air blades 62 may include: a first fresh air blade 621, and the first fresh air blade 621 extends from the fresh air wheel disc 61 in a direction away from the exhaust fan 7. In other words, the first fresh air blade 621 extends from the fresh air wheel disc 61 in a direction close to the heat exchange fan 41. When the fresh air fan 6 rotates, the first fresh air blade 621 pushes the air to flow, thereby generating a vortex at the first fresh air blade 621. The blade cylinder formed by arranging the first fresh air blades 621 in the circumferential direction 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 fresh air intake volume.

[0223] In some embodiments, such as Figure 8 , Figure 12 , Figure 14 and Figures 16 - 19 shown, the fresh air blade 62 may include: a second fresh air blade 622, and the second fresh air blade 622 extends from the fresh air wheel disc 61 towards the direction close to the exhaust fan 7. In other words, the second fresh air blade 622 extends from the fresh air wheel disc 61 towards the direction away from the heat exchange fan 41. In the axial direction of the fresh air fan 6, the extending direction of the first fresh air blade 621 is opposite to that of the second fresh air blade 622. When the fresh air fan 6 rotates, the second fresh air blade 622 pushes the air to flow, thereby generating a vortex at the second fresh air blade 622. The first fresh air blade 621 and the second fresh air blade 622 form a double-layer centrifugal blade. In this way, under the condition of meeting the large air volume requirement, the double-layer centrifugal blade structure design helps to increase the overall structural strength of the centrifugal fan.

[0224] In the axial direction of the fresh air fan 6, the first fresh air blade 621 is located between the second fresh air blade 622 and the fresh air inlet 801. After the outdoor air enters the fresh air volute 8 from the fresh air inlet 801, it first reaches the first fresh air blade 621, and then reaches the second fresh air blade 622. In this way, when the fresh air fan 6 rotates, a vortex is first generated at the first fresh air blade 621, and then a vortex is generated at the second fresh air blade 622.

[0225] By arranging the fresh air blades 62 on both sides of the fresh air wheel disc 61, the fresh air wheel disc 61 is farther away from the inner wall of the fresh air volute 8. When the second motor 5 drives the fresh air fan 6 to rotate, the first fresh air blade 621 pushes the air to move, thereby generating a vortex around the first fresh air blade 621. The second fresh air blade 622 pushes the air to move, thereby generating a vortex around the second fresh air blade 622. The vortex generated at the first fresh air blade 621 and the vortex generated at the second fresh air blade 622 are superimposed on each other, which can reduce the vortex noise.

[0226] In some embodiments, such as Figure 13 , Figure 19As shown, the first fresh air blade 621 is configured in an arc-shaped tile shape. In a plane perpendicular to the axis of the fresh air fan 6, the radially inner end of the first fresh air blade 621 is located inside the radially outer end of the first fresh air blade 621. The radially outer end of the first fresh air blade 621 is located at the first circumferential position E1 of the fresh air wheel disc 61, and the radially inner end of the first fresh air blade 621 is located at the second circumferential position E2 of the fresh air wheel disc 61. In the circumferential direction of the fresh air wheel disc 61, the second circumferential position E2 and the first circumferential position E1 are different positions, and the connection line between the second circumferential position E2 and the first circumferential position E1 does not pass through the center of the fresh air wheel disc 61. In the circumferential direction of the fresh air wheel disc 61, one side of the first fresh air blade 621 is a concave surface, and the other side of the first fresh air blade 621 is a convex surface.

[0227] When the second motor 5 drives the fresh air fan 6 to rotate, the concave surface of the first fresh air blade 621 pushes the air to move. The driving force of the concave surface of the first fresh air blade 621 on the air is relatively large. The concave surface of the first fresh air blade 621 wraps the wind, and it is easier to generate eddy currents around the first fresh air blade 621.

[0228] Similarly, as Figure 16 、 Figure 18 shown, the second fresh air blade 622 is configured in an arc-shaped tile shape. In a plane perpendicular to the axis of the fresh air fan 6, the radially inner end of the second fresh air blade 622 is located inside the radially outer end of the second fresh air blade 622. The radially outer end of the second fresh air blade 622 is located at the third circumferential position E3 of the fresh air wheel disc 61, and the radially inner end of the second fresh air blade 622 is located at the fourth circumferential position E4 of the fresh air wheel disc 61. In the circumferential direction of the fresh air wheel disc 61, the fourth circumferential position E4 and the third circumferential position E3 are different positions, and the connection line between the fourth circumferential position E4 and the third circumferential position E3 does not pass through the center of the fresh air wheel disc 61. In the circumferential direction of the fresh air wheel disc 61, one side of the second fresh air blade 622 is a concave surface, and the other side of the second fresh air blade 622 is a convex surface.

[0229] The bending direction of the concave surface of the second fresh air blade 622 is the same as that of the concave surface of the first fresh air blade 621. In this way, when the second motor 5 drives the fresh air fan 6 to rotate, both the concave surface of the first fresh air blade 621 and the concave surface of the second fresh air blade 622 push the air to move. The driving force of the concave surface of the second fresh air blade 622 on the air is relatively large. The concave surface of the second fresh air blade 622 wraps the wind, and it is easier to generate eddy currents around the second fresh air blade 622.

[0230] According to the wall-mounted air conditioner 10000 of the embodiment of the present invention, by arranging fresh air blades 62 on both sides of the fresh air wheel disc 61, it is beneficial to reduce the eddy current noise when the fresh air fan 6 rotates.

[0231] In some embodiments, in the axial direction of the fresh air fan 6, the length of the second fresh air blade 622 is less than the length of the first fresh air blade 621. Refer to Figure 12 As shown, in the axial direction of the fresh air fan 6, the length of the second fresh air blade 622 is h12, and the length of the first fresh air blade 621 is h11, satisfying: h12 < h11. The first fresh air blade 621 faces the axial air inlet end. Therefore, 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 fresh air intake is supplemented. 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.

[0232] In some embodiments, refer to Figure 12 As shown, in the axial direction of the fresh air fan 6, the length of the second fresh air blade 622 is h12, and the length of the first fresh air blade 621 is h11, satisfying: 0.1 ≤ h12 / h11 ≤ 0.45.

[0233] In some embodiments, 0.1 ≤ h12 / h11. When h12 / h11 < 0.1, the length of the second fresh air blade 622 is too short. When the fresh air fan 6 rotates, the vortex generated by the second fresh air blade 622 is too small, and the effect on reducing noise is not obvious. Therefore, setting 0.1 ≤ h12 / h11, in this way, the length of the second fresh air blade 622 will not be too short. When driving the fresh air fan 6 to rotate, the vortex generated by the second fresh air blade 622 will not be too small, and the effect on reducing noise is obvious.

[0234] In some embodiments, h12 / h11 ≤ 0.45. When h12 / h11 > 0.45, the length of the second fresh air blade 622 is too long, resulting in the overall thickness of the fresh air fan 6 being too thick, and further resulting in the axial length of the entire air exchange component being too large, which is not conducive to shortening the overall length of the wall-mounted air conditioner 10000. If the total thickness of the fresh air fan 6 is to be kept unchanged, then when h12 / h11 > 0.45, the length of the first fresh air blade 621 will be too short, resulting in a decrease in the air intake volume. Therefore, setting h12 / h11 ≤ 0.45, in this way, the length of the second fresh air blade 622 will not be too long, the overall thickness of the fresh air fan 6 will not be too thick, and the axial length of the entire air exchange component will not be too large, which is beneficial to shortening the overall length of the wall-mounted air conditioner 10000. At the same time, the length of the first fresh air blade 621 is greater than the length of the second fresh air blade 622, which can ensure a larger air intake volume.

[0235] Optionally, h12 / h11 can be 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, etc. h12 / h11 can also be other values between 0.1 and 0.45, which will not be listed one by one here.

[0236] In some embodiments, h12 / h11 = 0.2, that is, h11 = 5×h12. In this way, the length of the second fresh air blade 622 will not be too short, and the length of the first fresh air blade 621 will not be too long. The length ratio of the second fresh air blade 622 to the first fresh air blade 621 is appropriate, and the running noise of the fresh air fan 6 can be reduced while ensuring the air intake volume.

[0237] In some embodiments, such as Figure 13 , Figure 19 As shown, there are multiple first fresh air blades 621, and the multiple first fresh air blades 621 are arranged circumferentially on the fresh air wheel disc 61. The first fresh air blades 621 are located at the edge of the fresh air wheel disc 61. Compared with the scheme where the first fresh air blades 621 are located at the center of the fresh air wheel disc 61, when the first fresh air blades 621 are located at the edge of the fresh air wheel disc 61, eddy currents are more likely to be generated.

[0238] In some embodiments, such as Figure 16 , Figure 18 As shown, there are multiple second fresh air blades 622, and the multiple second fresh air blades 622 are arranged circumferentially on the fresh air wheel disc 61. The second fresh air blades 622 are located at the edge of the fresh air wheel disc 61. Compared with the scheme where the second fresh air blades 622 are located at the center of the fresh air wheel disc 61, when the second fresh air blades 622 are located at the edge of the fresh air wheel disc 61, eddy currents are more likely to be generated.

[0239] In some embodiments, referring to Figure 12 As shown, in the circumferential direction of the fresh air fan 6, the distance between two adjacent first fresh air blades 621 and the distance between two adjacent second fresh air blades 622 are both C. The first fresh air blades 621 and the second fresh air blades 622 are arranged staggeredly, and the staggering distance is D, that is, the circumferential distance between the first fresh air blade 621 and the adjacent second fresh air blade 622 is D, satisfying: 0.1 ≤ D / C ≤ 0.8. Specifically, the multiple first fresh air blades 621 are evenly arranged on the fresh air wheel disc 61, and the multiple second fresh air blades 622 are evenly arranged on the fresh air wheel disc 61. In the circumferential direction of the fresh air fan 6, there is a first gap between any two adjacent first fresh air blades 621, and there is a second gap between any two adjacent second fresh air blades 622. The first gap is equal to the second gap. C refers to the size of the first gap and also the size of the second gap. D refers to the minimum distance of the gap between the first fresh air blade 621 and the adjacent second fresh air blade 622 in the circumferential direction of the fresh air fan 6. In other words, D refers to the minimum distance of the gap formed between the projection of the first fresh air blade 621 on the fresh air wheel disc 61 and the projection of the second fresh air blade 622 on the fresh air wheel disc 61.

[0240] The first fresh air blade 621 and the second fresh air blade 622 are arranged staggeredly, which can make the eddy current generated at the first fresh air blade 621 lag behind the eddy current generated at the second fresh air blade 622. Compared with the scheme where the first fresh air blade 621 and the second fresh air blade 622 are not arranged staggeredly, arranging the first fresh air blade 621 and the second fresh air blade 622 staggeredly makes the eddy current generated at the first fresh air blade 621 and the eddy current generated at the second fresh air blade 622 cancel each other out better after superposition, and the effect of eliminating the rotation noise of the fresh air fan 6 is better.

[0241] In some embodiments, 0.1 ≤ D / C. When D / C < 0.1, the staggering distance between the first fresh air blade 621 and the second fresh air blade 622 is small, so that the eddy current generated at the first fresh air blade 621 cannot lag significantly behind the eddy current generated at the second fresh air blade 622, and the effect of eliminating the rotation noise of the fresh air fan 6 is not good. Therefore, setting 0.1 ≤ D / C, in this way, the staggering distance between the first fresh air blade 621 and the second fresh air blade 622 is large, and the eddy current generated at the first fresh air blade 621 and the eddy current generated at the second fresh air blade 622 cancel each other out better after superposition, and the effect of eliminating the rotation noise of the fresh air fan 6 is better.

[0242] In some embodiments, D / C ≤ 0.8. When D / C > 0.8, although one second fresh air blade 622 is far from the first first fresh air blade 621, it will be close to another first fresh air blade 621, resulting in a smaller staggering distance between the second fresh air blade 622 and the first fresh air blade 621. Therefore, setting D / C ≤ 0.8 can ensure that the second fresh air blade 622 is staggered from the first fresh air blades 621 on both sides of the second fresh air blade 622 by a large distance, and the eddy current generated at the first fresh air blade 621 and the eddy current generated at the second fresh air blade 622 cancel each other out better after superposition, and the effect of eliminating the rotation noise of the fresh air fan 6 is better.

[0243] In some embodiments, D / C ≤ 0.5, so that the distance between one second fresh air blade 622 and the first first fresh air blade 621 is less than or equal to the distance between the second fresh air blade 622 and another first fresh air blade 621.

[0244] In some embodiments, such as Figures 12 - 13 、 Figures 17 - 19As shown, one end of multiple first fresh air blades 621 away from the fresh air wheel disc 61 is connected through a first wheel ring 63. The first wheel ring 63 is separated from the fresh air wheel disc 61. An air passing gap will be formed between two adjacent first fresh air blades 621, the fresh air wheel disc 61, and the first wheel ring 63. The first fresh air blades 621 can better push air to form a vortex. The first wheel ring 63 is used to increase the connection strength of multiple first fresh air blades 621. When the fresh air fan 6 rotates, it prevents the end of multiple first fresh air blades 621 away from the fresh air wheel disc 61 from having a large relative displacement, which may cause the root of the end of the first fresh air blade 621 connected to the fresh air wheel disc 61 to break.

[0245] In some embodiments, as Figures 12 - 13 , Figures 17 - 19 shown, one end of multiple second fresh air blades 622 away from the fresh air wheel disc 61 is separated from each other without setting a wheel ring, which can reduce the overall weight of the fresh air fan 6.

[0246] In some embodiments, one end of multiple second fresh air blades 622 away from the fresh air wheel disc 61 is connected to a second wheel ring. The second wheel ring is separated from the fresh air wheel disc 61. An air passing gap will be formed between two adjacent second fresh air blades 622, the fresh air wheel disc 61, and the second wheel ring. The second fresh air blades 622 can better push air to form a vortex. The second wheel ring is used to increase the connection strength of multiple second fresh air blades 622. When the fresh air fan 6 rotates, it prevents the end of multiple second fresh air blades 622 away from the fresh air wheel disc 61 from having a large relative displacement, which may cause the root of the end of the second fresh air blade 622 connected to the fresh air wheel disc 61 to break.

[0247] In some embodiments, referring to Figure 12 , Figure 14 shown, one end of multiple exhaust blades 72 away from the exhaust wheel disc 71 is separated from each other without setting a wheel ring, which can reduce the overall weight of the exhaust fan 7.

[0248] In some embodiments, referring to Figure 20 shown, one end of multiple exhaust blades 72 away from the exhaust wheel disc 71 is connected to an exhaust wheel ring 75. The exhaust wheel ring 75 is separated from the exhaust wheel disc 71. An air passing gap will be formed between two adjacent exhaust blades 72, the exhaust wheel disc 71, and the exhaust wheel ring 75. The exhaust blades 72 can better push air to form a vortex. The exhaust wheel ring 75 is used to increase the connection strength of multiple exhaust blades 72. When the exhaust fan 7 rotates, it prevents the end of multiple exhaust blades 72 away from the exhaust wheel disc 71 from having a large relative displacement, which may cause the root of the end of the exhaust blade 72 connected to the exhaust wheel disc 71 to break.

[0249] In some embodiments, as Figure 13 , Figure 16 ,Figures 18 - 19 As shown, the fresh air wheel disc 61 is provided with wheel disc holes 612, and the wheel disc holes 612 penetrate through the fresh air wheel disc 61 axially. The wheel disc holes 612 are used for one side of the second fresh air blade 622 to suck air through the wheel disc holes 612, so that the air on the side where the first fresh air blade 621 is located can pass through the wheel disc holes 612 to reach the side where the second fresh air blade 622 is located, thereby generating a large eddy current at the second fresh air blade 622.

[0250] In some embodiments, in the radial direction of the fresh air wheel disc 61, there are multiple wheel disc holes 612, and the multiple wheel disc holes 612 are arranged circumferentially on the fresh air wheel disc 61. Thus, in the circumferential direction of the fresh air wheel disc 61, the air on the side where the first fresh air blade 621 is located can pass through the multiple wheel disc holes 612 to reach the side where the second fresh air blade 622 is located, improving the air passing efficiency.

[0251] In some embodiments, 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. In other words, the distance from the wheel disc hole 612 to the center of the fresh air wheel disc 61 is less than the distance from any one of the first fresh air blade 621 and the second fresh air blade 622 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 relative to the first fresh air blade 621 and the second fresh air blade 622. Refer to Figure 13 、 Figure 16 As shown, the distance from the wheel disc hole 612 to the center of the fresh air wheel disc 61 refers to the minimum distance from the hole wall of the wheel disc hole 612 to the center of the fresh air wheel disc 61, this distance is L0, and the distance from any one of the first fresh air blade 621 and the second fresh air blade 622 to the center of the fresh air wheel disc 61 refers to the minimum distance from any one of the first fresh air blade 621 and the second fresh air blade 622 to the center of the fresh air wheel disc 61, this distance is L1, and L0 < L1. This is beneficial for the second fresh air blade 622 to guide the air flow to be sucked into the space where the second fresh air blade 622 is located axially when sucking air from the wheel disc hole 612, and reducing the turbulent flow generated by competing for air with the first fresh air blade 621.

[0252] In some embodiments, the disk hole 612 is located on the side of the first fresh air blade 621 and the second fresh air blade 622 close to the center of the fresh air disk 61. The distance from the disk hole 612 to any one of the first fresh air blade 621 and the second fresh air blade 622 is less than the distance from the disk hole 612 to the center of the fresh air disk 61. The distance from the disk hole 612 to any one of the first fresh air blade 621 and the second fresh air blade 622 refers to the minimum radial distance between any one of the first fresh air blade 621 and the second fresh air blade 622 and the hole wall of the disk hole 612. This distance is L2, and L2 < L0. That is to say, compared with the center of the fresh air disk 61, the disk hole 612 is closer to the first fresh air blade 621 and the second fresh air blade 622. In this way, the air on the side of the fresh air disk 61 facing the heat exchange fan 41 can reach the second fresh air blade 622 faster through the disk hole 612, and eddy currents can be generated faster at the second fresh air blade 622.

[0253] In some embodiments, the disk hole 612 extends along the radial direction of the fresh air disk 61. In the radial direction of the fresh air disk 61, the width of the end of the disk hole 612 far from the center of the fresh air disk 61 is greater than the width of the end of the disk hole 612 close to the center of the fresh air disk 61. Refer to Figure 13 As shown, the end of the disk hole 612 far from the center of the fresh air disk 61 is the radial outer end of the disk hole 612, the width of the radial outer end of the disk hole 612 is w1, the end of the disk hole 612 close to the center of the fresh air disk 61 is the radial inner end of the disk hole 612, and the width of the radial inner end of the disk hole 612 is w2, and w1 > w2. This enables the air at the radial outer end of the disk hole 612 to be greater than the air at the radial inner end of the disk hole 612, and more air passing through the disk hole 612 can reach the second fresh air blade 622, ensuring that the eddy currents generated at the second fresh air blade 622 are larger.

[0254] In some embodiments, as Figures 17 - 19 shown, the fresh air disk 61 includes a fresh air disk body 611 and a connecting portion 613. The connecting portion 613 is arranged on the fresh air disk body 611. The connecting portion 613 has a connecting hole 6131 for connecting with the second motor 5. In the axial direction of the fresh air fan 6, the length of the connecting portion 613 is greater than the length of the fresh air disk body 611. By providing the connecting portion 613, it can be ensured that the connection between the second motor 5 and the fresh air fan 6 is firm. The fresh air disk body 611 can be made thinner, and the thickness of the fresh air disk body 611 does not need to consider the connection between the fresh air fan 6 and the second motor 5, which is beneficial to saving the material cost of the fresh air disk body 611 and reducing the overall weight of the fresh air fan 6.

[0255] In some embodiments, as Figure 11 shown, on the exhaust fan 7, the total thickness in the axial direction of the exhaust disk 71 and the exhaust blades 72 is h2, asFigure 12 As shown, the total axial thickness of the fresh air wheel disc 61, the first fresh air blade 621, and the second fresh air blade 622 on the fresh air fan 6 is h1, where h2 < h1. With this setting, while ensuring that the fresh air volume is greater than the exhaust air volume, the axial thickness of the main body of the fresh air fan 7 is made larger, so that the structural strength is greater and it can bear a greater torque. And the exhaust air fan 7 has a lower air volume requirement, and the smaller axial thickness of the main body can appropriately reduce the exhaust air volume and at the same time reduce the axial dimension of the two-way ventilation component.

[0256] In some embodiments, such as Figure 8 、 Figure 15 As shown, the first volute 81 is located on the side of the second fresh air blade 622 away from the fresh air wheel disc 61, and the second volute 82 is located on the side of the first fresh air blade 621 away from the fresh air wheel disc 61. The second volute 82 is provided with an axial ventilation port 8211 at the center in the radial direction. The axial air inlet end of the first fresh air blade 621 is arranged facing the axial ventilation port 8211. The fresh air inlet 801 is located on the second volute 82. In the axial direction of the fresh air fan 6, the fresh air inlet 801 is located on the side of the axial ventilation port 8211 away from the second fresh air blade 622. The outdoor air entering the second volute 82 from the fresh air inlet 801 can first reach the first fresh air blade 621 and then reach the second fresh air blade 622.

[0257] In some embodiments, referring to Figure 13 、 Figure 16 、 Figures 18 - 19 , the fresh air wheel disc 61 is provided with a wheel disc hole 612. The wheel disc hole 612 axially penetrates the fresh air wheel disc 61. In the radial direction of the fresh air fan 6, the wheel disc hole 612 is located on the side of the first fresh air blade 621 and the second fresh air blade 622 close to the center of the fresh air wheel disc 61. The wheel disc hole 612 is used to guide the outdoor air entering the volute cavity V011 through the fresh air inlet 801 and the axial ventilation port 8211 from the side of the fresh air wheel disc 61 facing the first fresh air blade 621 to the side of the fresh air wheel disc 61 facing the second fresh air blade 622, so as to generate eddy currents around the first fresh air blade 621 and around the second fresh air blade 622. The eddy currents generated at the first fresh air blade 621 and the eddy currents generated at the second fresh air blade 622 are superimposed on each other, which can reduce the eddy current noise.

[0258] In some embodiments, referring to Figure 14 , the first volute 81 includes a first volute end plate 811 and a first volute enclosure 812. The first volute end plate 811 is located on the side of the second fresh air blade 622 away from the fresh air wheel disc 61, and the first volute enclosure 812 extends along the edge of the first volute end plate 811 in the direction of the heat exchange fan 41.

[0259] In some embodiments, referring toFigure 5 , Figure 8 and Figure 15 , the second volute 82 includes: a second volute half 821 and a blower housing 822. The second volute half 821 is located on the side of the first fresh air blade 621 away from the fresh air wheel disc 61, and the blower housing 822 is located on the side of the second volute half 821 away from the fresh air fan 6 and is detachably connected to the second volute half 821.

[0260] In the description of this specification, the description with reference to terms such as "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. 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 can be combined in a suitable manner in any one or more embodiments or examples.

[0261] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A wall-mounted air conditioner (10000), comprising: A main body (1000), the main body (1000) comprising: A casing (1), wherein a receiving cavity (V1) is formed inside the casing (1), and a heat exchange air inlet (101) and a heat exchange air outlet (102) are formed on the casing (1), and in the height direction of the main body (1000), the heat exchange air inlet (101) is located above the heat exchange air outlet (102); An indoor heat exchanger (2) is arranged in the accommodating chamber (V1); A base (3) is disposed in the accommodating cavity (V1) and is formed with a volute-tongue air duct; A heat exchange fan (41) is arranged in the volute-tongue air duct and is located on a side of the indoor heat exchanger (2) away from the heat exchange air inlet (101); A first motor (42) is disposed in the accommodating cavity (V1) and is located at one end in the length direction of the main body (1000), and is used to drive the heat exchange fan (41) to rotate so that air inside the air conditioner performs heat exchange with indoor space; It is characterized by further comprising: A second motor (5) is disposed in the accommodating cavity (V1), and the second motor (5) is located at the other end of the main body (1000) in the length direction; A fresh air fan (6), the fresh air fan (6) being a centrifugal fan with axial air intake and radial air discharge, the fresh air fan (6) being located on a side of the heat exchange fan (41) away from the first motor (42); an exhaust fan (7), the exhaust fan (7) being a centrifugal fan with axial air intake and radial air discharge, and in the length direction of the main body (1000), the exhaust fan (7) is located on a side of the fresh air fan (6) facing the second motor (5); Wherein, the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously when in working state; A fresh air volute (8), a fresh air duct (V01) is formed in the fresh air volute (8), the fresh air fan (6) is installed in the fresh air volute (8), and a fresh air inlet (801) and a fresh air outlet (802) are formed on the fresh air volute (8); The rotation of the fresh air fan (6) allows outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and allows outdoor air that has entered the fresh air volute (8) to enter the room from the fresh air outlet (802); An exhaust volute (9) is located on a side of the fresh air volute (8) facing the second motor (5), an exhaust air duct (V02) is formed in the exhaust volute (9), the exhaust fan (7) is installed in the exhaust volute (9), and an exhaust air inlet (901) and an exhaust air outlet (902) are formed on the exhaust volute (9); The exhaust fan (7) rotates to allow indoor air to enter the exhaust volute (9) from the exhaust air inlet (901), and to allow the indoor air entering the exhaust volute (9) to be discharged to the outdoors from the exhaust air outlet (902); Wherein, the fresh air fan (6) comprises: A fresh air wheel (61), wherein the fresh air wheel (61) is coaxially arranged with the second motor (5); a first fresh air blade (621), the first fresh air blade (621) extending from the fresh air wheel (61) in a direction away from the exhaust fan (7); a second fresh air blade (622), the second fresh air blade (622) extending from the fresh air wheel (61) in a direction close to the exhaust fan (7); Wherein, in the axial direction of the fresh air fan (6), the first fresh air blade (621) is located between the second fresh air blade (622) and the fresh air inlet (801).

2. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: In the axial direction of the fresh air fan (6), the length of the second fresh air blade (622) is smaller than the length of the first fresh air blade (621).

3. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: In the axial direction of the fresh air fan (6), the length of the second fresh air blade (622) is h12, and the length of the first fresh air blade (621) is h11, satisfying: 0.1≤h12 / h11≤0.

45.

4. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The first fresh air blades (621) are multiple, and the multiple first fresh air blades (621) are arranged on the fresh air wheel (61) along the circumferential direction, and the first fresh air blades (621) are located at the edge of the fresh air wheel (61); The second fresh air blades (622) are multiple, and the multiple second fresh air blades (622) are arranged circumferentially on the fresh air wheel (61), and the second fresh air blades (622) are located at the edge of the fresh air wheel (61).

5. The wall-mounted air conditioner (10000) according to claim 4, characterized in that: In the circumferential direction of the fresh air fan (6), the distance between two adjacent first fresh air blades (621) and the distance between two adjacent second fresh air blades (622) are both C, and the first fresh air blades (621) and the second fresh air blades (622) are staggered and the staggered distance is D, satisfying: 0.1≤D / C≤0.

8.

6. The wall-mounted air conditioner (10000) according to claim 2, characterized in that: One end of the plurality of first fresh air blades (621) away from the fresh air wheel disc (61) is connected via a first wheel ring (63); the first wheel ring (63) is separated from the fresh air wheel disc (61); the first wheel ring (63) is used to increase the connection strength of the plurality of first fresh air blades (621); The ends of the plurality of second fresh air blades (622) away from the fresh air wheel (61) are separated from each other.

7. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: One end of the plurality of first fresh air blades (621) away from the fresh air wheel (61) is connected to the first wheel rim (63), and the first wheel rim (63) is separated from the fresh air wheel (61), and the first wheel rim (63) is used to increase the connection strength of the plurality of first fresh air blades (621).

8. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The ends of the plurality of second fresh air blades (622) away from the fresh air wheel (61) are all connected to the second wheel rim, and the second wheel rim is separated from the fresh air wheel (61), and the second wheel rim is used to increase the connection strength of the plurality of second fresh air blades (622).

9. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The fresh air wheel (61) is provided with a wheel hole (612), and the wheel hole (612) penetrates the fresh air wheel (61) in the axial direction.

10. The wall-mounted air conditioner (10000) according to claim 9, characterized in that: In the radial direction of the fresh air wheel (61), there are a plurality of wheel holes (612), and the plurality of wheel holes (612) are arranged on the fresh air wheel (61) along the circumferential direction.

11. The wall-mounted air conditioner (10000) according to claim 9, characterized in that: The distance from the wheel hole (612) to the center of the fresh air wheel (61) is smaller than the distance from any one of the first fresh air blade (621) and the second fresh air blade (622) to the center of the fresh air wheel (61).

12. The wall-mounted air conditioner (10000) according to claim 9, characterized in that: The wheel hole (612) is located on one side of the first fresh air blade (621) and the second fresh air blade (622) close to the center of the fresh air wheel (61), and the distance from the wheel hole (612) to any one of the first fresh air blade (621) and the second fresh air blade (622) is smaller than the distance from the wheel hole (612) to the center of the fresh air wheel (61).

13. The wall-mounted air conditioner (10000) according to any one of claims 10 to 12, characterized in that: The wheel hole (612) extends radially of the fresh air wheel (61), and in the radial direction of the fresh air wheel (61), the width of an end of the wheel hole (612) away from the center of the fresh air wheel (61) is greater than the width of an end of the wheel hole (612) close to the center of the fresh air wheel (61).

14. The wall-mounted air conditioner (10000) according to any one of claims 1 to 12, characterized in that: The fresh air wheel (61) comprises a fresh air wheel body (611) and a connecting portion (613), wherein the connecting portion (613) is arranged on the fresh air wheel body (611), and the connecting portion (613) has a connecting hole (6131) connected to the second motor (5), and in the axial direction of the fresh air fan (6), the length of the connecting portion (613) is greater than the length of the fresh air wheel body (611).

15. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The second motor (5) is an outer rotor motor, and the second motor (5) comprises: A stator part (51), wherein the stator part (51) has a coil wound thereon; a rotor portion (52), wherein in the radial direction of the stator portion (51), the rotor portion (52) is arranged around the outer side of the stator portion (51); A motor housing (53), wherein the motor housing (53) is fixedly connected to the rotor portion (52); an output shaft (532), the output shaft (532) being fixedly connected to the motor housing (53), and one end of the output shaft (532) extending along the axial direction of the motor housing (53) toward one side of the heat exchange fan (41), and the other end of the output shaft (532) extending into the stator portion (51); The fresh air fan (6) is located between the heat exchange fan (41) and the motor housing (53), the fresh air wheel (61) is connected to the output shaft (532) of the second motor (5), the exhaust fan (7) is sleeved on the radial outer side of the motor housing (53), and the exhaust fan (7) is fixedly connected to the motor housing (53).

16. The wall-mounted air conditioner (10000) according to claim 15, characterized in that: The fresh air volute (8) comprises: a first volute (81), the first volute (81) being located on a side of the exhaust volute (9) facing the heat exchange fan (41), and the first volute (81) being detachably connected to the exhaust volute (9); A second volute (82), the second volute (82) is located on a 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), and the first volute (81) is located between the exhaust volute (9) and the second volute (82).

17. The wall-mounted air conditioner (10000) according to claim 16, characterized in that: A volute cavity (V011) is formed between the second volute (82) and the first volute (81), and the fresh air fan (6) is located in the volute cavity (V011); The first volute (81) is located on a side of the second fresh air blade (622) away from the fresh air wheel (61), and the second volute (82) is located on a side of the first fresh air blade (621) away from the fresh air wheel (61).

18. The wall-mounted air conditioner (10000) according to claim 17, characterized in that: The second volute (82) is provided with an axial vent (8211) at the center in the radial direction, the axial air inlet end of the first fresh air blade (621) is arranged toward the axial vent (8211), the fresh air inlet (801) is located on the second volute (82), and in the axial direction of the fresh air fan (6), the fresh air inlet (801) is located on the side of the axial vent (8211) away from the second fresh air blade (622).

19. The wall-mounted air conditioner (10000) according to claim 18, characterized in that: The fresh air wheel (61) is provided with a wheel hole (612), and the wheel hole (612) penetrates the fresh air wheel (61) axially. In the radial direction of the fresh air fan (6), the wheel hole (612) is located on the side of the first fresh air blade (621) and the second fresh air blade (622) close to the center of the fresh air wheel (61). The wheel hole (612) is used to guide the outdoor air entering the volute cavity (V011) through the fresh air inlet (801) and the axial ventilation port (8211) from the side of the fresh air wheel (61) facing the first fresh air blade (621) to the side of the fresh air wheel (61) facing the second fresh air blade (622).

20. The wall-mounted air conditioner (10000) according to claim 16, characterized in that: The exhaust fan (7) comprises an exhaust wheel disc (71) and exhaust blades (72), wherein the exhaust blades (72) are located at the edge of the exhaust wheel disc (71), and the exhaust blades (72) extend along the axial direction of the exhaust wheel disc (71) in a direction away from the fresh air fan (6); The exhaust fan (7) further comprises a protrusion (74) provided on the exhaust wheel disc (71), and the protrusion (74) extends in a direction toward the fresh air fan (6) relative to the exhaust wheel disc (71), so that a side of the protrusion (74) close to the second motor (5) forms a receiving groove (V07) for the second motor (5); At least a portion of the stator portion (51) and at least a portion of the rotor portion (52) are accommodated in the accommodating groove (V07).

21. The wall-mounted air conditioner (10000) according to claim 20, characterized in that: The first volute (81) comprises a first volute end plate (811) and a first volute enclosure plate (812); the first volute end plate (811) is located on a side of the second fresh air blade (622) away from the fresh air wheel (61); the first volute enclosure plate (812) is formed by extending along an edge of the first volute end plate (811) toward the heat exchange fan (41); Wherein, a central portion of the first volute end plate (811) forms a recessed portion (813) facing the fresh air fan (6); At least a portion of the protrusion (74) is located within the recess (813).

22. The wall-mounted air conditioner (10000) according to claim 21, characterized in that: A perforated portion (814) is provided at the center of the recessed portion (813), and the output shaft (532) is connected to the fresh air wheel (61) via the perforated portion (814).

23. The wall-mounted air conditioner (10000) according to claim 18, characterized in that: The second volute (82) comprises: a second volute half (821), 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 located on the side of the first fresh air blade (621) away from the fresh air wheel (61), the axial vent (8211) is located at the center of the second volute half (821) in the radial direction, the volute cavity (V011) is formed between the second volute half (821) and the first volute (81), and the second volute half (821) and the first volute (81) surround the fresh air outlet (802).

24. The wall-mounted air conditioner (10000) according to claim 23, characterized in that: The second volute (82) comprises: a fan cover (822), the fan cover (822) is located on a side of the second volute half (821) away from the fresh air fan (6), and the fan cover (822) and the second volute half (821) are detachably connected, the cavity enclosed by the fan cover (822) and the second volute half (821) is a fresh air cavity (V012), and the fan cover (822) and the second volute half (821) enclose the fresh air inlet (801).

25. The wall-mounted air conditioner (10000) according to claim 24, characterized in that: Also includes: A purification component (11), wherein the purification component (11) is installed in the fresh air cavity (V012), the purification component (11) is connected to the second volute (82), the purification component (11) comprises a filter (111), the filter (111) is covered on the axial vent (8211), the fresh air fan (6) rotates to allow outdoor air to enter the fresh air cavity (V012) from the fresh air inlet (801), and the outdoor air entering the fresh air cavity (V012) is blown through the filter (111), then enters the volute cavity (V011) through the axial vent (8211), and then enters the room from the fresh air outlet (802).

26. The wall-mounted air conditioner (10000) according to claim 25, characterized in that: The air inlet direction of the fresh air inlet (801) is parallel to the filter screen (111), and the air inlet direction of the axial ventilation opening (8211) is perpendicular to the filter screen (111).

27. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The total thickness of the fresh air wheel (61), the first fresh air blade (621) and the second fresh air blade (622) in the axial direction is h1; The exhaust fan (7) comprises 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; Among them, h2<h1.

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