Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a main body, a main body comprises a machine shell, an indoor heat exchanger, a base, a heat exchange fan and a first motor connected with the heat exchange fan. The wall-mounted air conditioner further comprises a second motor, a fresh air fan, an exhaust fan, a fresh air volute and an exhaust volute, and the first motor and the second motor are located at the two ends of the main body in the length direction. The second motor is an outer rotor motor and is connected with the fresh air fan and the exhaust fan to rotate synchronously. The fresh air fan and the exhaust fan are both centrifugal fans with axial air inlet and radial air outlet, the fresh air fan is located on the side, away from the first motor, of the heat exchange fan, the exhaust fan is located on the side, facing the second motor, of the fresh air fan, and the exhaust fan is arranged on the radial outer side of the motor shell in a sleeving mode. In the height direction of the main body, the fresh air inlet is located below the main body, and the exhaust air outlet is located below the main body. On the premise that bidirectional air exchange is achieved, the whole wall-mounted air conditioner can be kept light and thin, and reliability is improved.

Description

Technical Field

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

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

[0003] An air conditioner includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are respectively installed indoors and outdoors, and the two are connected through corresponding pipelines and electric wires. Generally, in order to improve the indoor air quality, the air conditioner also has a fresh air device and an exhaust device for ventilation. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the related art. To this end, some embodiments of the present disclosure provide a wall-mounted air conditioner, which can improve the cleanliness of the inhaled fresh air while realizing simultaneous exhaust and air intake in the room.

[0005] The wall-mounted air conditioner according to an embodiment of the present disclosure 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 can perform heat exchange between the inside of the air conditioner and the indoor space.

[0006] The wall-mounted air conditioner further includes: a second motor, disposed in the accommodation cavity, and the second motor is located at the other end in the length direction of the main body. The second motor is an outer rotor motor, and the second motor includes: a stator part, on which a wound coil is provided; a rotor part, in the radial direction of the stator part, the rotor part is disposed around the outside of the stator part; a motor housing, the motor housing is fixedly connected to the rotor part; an output shaft, the output shaft is fixedly connected to the motor housing and extends along the axial direction of the motor housing toward the side of the heat exchange fan.

[0007] The wall-mounted air conditioner further includes: a fresh air fan, which is a centrifugal fan with axial air intake and radial air outlet. The fresh air fan is located on the side of the heat exchange fan away from the first motor, between the heat exchange fan and the motor housing, and is connected to the output shaft of the second motor; an exhaust fan, which is a centrifugal fan with axial air intake and radial air outlet. In the length direction of the main body, the exhaust fan is located on the side of the fresh air fan facing the second motor. The exhaust fan is sleeved on the radial outer side of the motor housing and is fixedly connected to the motor housing.

[0008] When the second motor is in the working state, it drives the fresh air fan and the exhaust fan to rotate synchronously.

[0009] 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. In the height direction of the main body, the fresh air inlet is located below the main body.

[0010] The wall-mounted air conditioner further includes: an exhaust volute, which is located on the side of the fresh air volute facing the second motor. An exhaust duct is formed inside the exhaust volute. The exhaust fan is installed inside the exhaust volute. An exhaust inlet and an exhaust outlet are formed on the exhaust volute. When the exhaust fan rotates, indoor air can enter the exhaust volute from the exhaust inlet, and the indoor air entering the exhaust volute can be discharged to the outside from the exhaust outlet. In the height direction of the main body, the exhaust outlet is located below the main body.

[0011] The wall-mounted air conditioner according to some embodiments of the present disclosure can improve the cleanliness of the inhaled fresh air while realizing simultaneous exhaust and air intake in the room.

[0012] By using an outer rotor motor for the second motor, the exhaust fan is sleeved on the radial outer side of the motor housing, a part of the second motor in the motor housing is embedded in the exhaust fan, and a part of the output shaft is embedded in the fresh air fan, so that in the length direction of the main body, the second motor almost overlaps with the exhaust fan and the fresh air fan, the parts of the exhaust fan and the fresh air fan outside the second motor 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, thereby controlling the length dimension of the main body.

[0013] The main body of the second motor is located inside the exhaust fan rather than the fresh air fan, which can leave more air flow space for the fresh air duct, facilitating the intake of fresh air, making the exhaust air volume less than the fresh air volume, and reducing the loss of indoor cooling or heating capacity. Since the second motor uses an outer rotor motor that can adapt to scenarios such as low-speed high torque and direct drive, a speed reducer can be dispensed with, and the exhaust fan can be directly sleeved on the radial outside of the motor housing. This not only avoids the speed reducer increasing the overall axial dimension but also avoids the speed reducer increasing the difficulty of structural layout. By simply fixedly connecting the exhaust fan to the motor housing and connecting the fresh air fan to the output shaft of the second motor, the exhaust fan and the fresh air fan can be arranged coaxially and stacked, rotating synchronously and maintaining a small gap without excessive spacing.

[0014] The fresh air fan is arranged on the side of the exhaust fan facing the indoor heat exchanger, which can reduce the loss of indoor cooling or heating capacity and improve the comfort when fresh air is blown into the room. For example, the fresh air volute is close to the indoor heat exchanger, and the fresh air inhaled from the outside can absorb the cooling or heating capacity released by the indoor heat exchanger before being blown into the room, so that the fresh air is as close as possible to the indoor temperature before being blown into the room. The exhaust air volute is far from the indoor heat exchanger, so it absorbs less cooling or heating capacity from the indoor heat exchanger after absorbing air from the room, and the loss of cooling or heating capacity discharged to the outside is small.

[0015] The fresh air fan is arranged on the side of the exhaust fan facing the indoor heat exchanger. When the indoor heat exchanger is refrigerating, it can also reduce the entry of condensed water into the air duct. This reduces the risk of water accumulation and bacteria breeding in the exhaust air duct and the fresh air duct, and reduces the risk of motor damage caused by condensed water entering the second motor. The exhaust fan is located on the side of the fresh air fan away from the indoor heat exchanger. For the exhaust fan that needs to intake air from the room, the intake air energy consumption it needs is also relatively low.

[0016] In the height direction of the main body, the fresh air inlet is arranged below the main body, and the exhaust air outlet is located below the main body, which is conducive to keeping the main body in a thin and light shape. The main body is thin and light, and 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 due to being too heavy, reducing the risk of falling off the wall. The overall wall-mounted air conditioner is still a thin and light model, which is not only beautiful when hung on the wall but also has controllable weight and safe to use.

[0017] The wall-mounted air conditioner according to an embodiment of the present disclosure includes: a main body.

[0018] The main body includes: a casing, an accommodation cavity is formed inside the casing, a heat exchange air inlet and a heat exchange air outlet are formed on the casing, and in the height direction of the main body, the heat exchange air inlet is located above the heat exchange air outlet; an indoor heat exchanger, which is arranged in the accommodation cavity; a base, which is arranged in the accommodation cavity and has a volute air duct formed thereon; a heat exchange fan, which is arranged in the volute air duct and is located on the side of the indoor heat exchanger away from the heat exchange air inlet; a first motor, which is arranged in the accommodation cavity and is located at one end in the length direction of the main body, and is used to drive the heat exchange fan to rotate so that air circulates between the interior of the air conditioner and the indoor space.

[0019] The wall-mounted air conditioner further includes: a second motor, which is arranged in the accommodation cavity and is located at the other end in the length direction of the main body, and the second motor is an external rotor motor. The second motor includes: a stator part, on which a wound coil is provided; a rotor part, in the radial direction of the stator part, the rotor part is arranged around the outside of the stator part; a motor housing, which is fixedly connected to the rotor part; an output shaft, which is fixedly connected to the motor housing.

[0020] The wall-mounted air conditioner further includes: a fresh air fan, the fresh air fan is a centrifugal fan with axial air inlet and radial air outlet, the fresh air fan is located on the side of the heat exchange fan away from the first motor, the fresh air fan is located between the heat exchange fan and the motor housing, and the fresh air fan is connected to the output shaft of the second motor.

[0021] The wall-mounted air conditioner further includes: an exhaust fan, the exhaust fan is a centrifugal fan with axial air inlet and radial air outlet, in the length direction of the main body, the exhaust fan is located on the side of the fresh air fan facing the second motor, the exhaust fan is sleeved on the radial outside of the motor housing, and the exhaust fan is fixedly connected to the motor housing.

[0022] When the second motor is in the working state, it drives the fresh air fan and the exhaust fan to rotate synchronously.

[0023] 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 in the fresh air volute, and a fresh air inlet and a fresh air outlet are formed on the fresh air volute; the rotation of the fresh air fan can make outdoor air enter the fresh air volute from the fresh air inlet, and can make the outdoor air entering the fresh air volute enter the room from the fresh air outlet.

[0024] The wall-mounted air conditioner further includes: an exhaust volute located on one side of the fresh air volute facing the second motor. An exhaust air duct is formed inside the exhaust volute. The exhaust fan is installed inside the exhaust volute. An exhaust air inlet and an exhaust air outlet are formed on the exhaust volute. When the exhaust fan rotates, indoor air can enter the exhaust volute from the exhaust air inlet, and the indoor air entering the exhaust volute can be discharged to the outside from the exhaust air outlet.

[0025] 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 the exhaust blades extend along the axial direction of the exhaust wheel disc away from the fresh air fan.

[0026] The exhaust fan may include a protrusion provided on the exhaust wheel disc. The center of the protrusion is located on the axis of the exhaust fan, and the protrusion 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 protrusion close to the second motor. At least a part of the stator part and at least a part of the rotor part are accommodated in the receiving groove.

[0027] The fresh air volute includes: a first volute located on one side of the exhaust volute facing the heat exchange fan, and the first volute is detachably connected to the exhaust volute; a second volute located on one side of the first volute facing the heat exchange fan, and the second volute is detachably connected to the first volute. The first volute is located between the exhaust volute and the second volute. The first volute includes a first volute end plate and a first volute shroud. The first volute shroud extends along the edge of the first volute end plate towards the heat exchange fan. A recessed portion facing the inside of the fresh air fan is formed in the central part area of the first volute end plate, and a perforated portion is provided at the center of the recessed portion. At least a part of the protrusion is located in the recessed portion, and the output shaft is connected to the fresh air fan through the perforated portion.

[0028] The wall-mounted air conditioner according to some embodiments of the present disclosure can improve the cleanliness of the inhaled fresh air while realizing simultaneous exhaust and intake of air in the room.

[0029] Additional aspects and advantages of the present disclosure 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 disclosure. Description of the Drawings

[0030] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1Stereogram of the main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0032] Figure 2 Front view of the main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0033] Figure 3 Stereogram of the interior of the main body in one direction according to some embodiments;

[0034] Figure 4 Stereogram of the interior of the main body in another direction according to some embodiments;

[0035] Figure 5 One-direction stereogram of a two-way ventilation component according to some embodiments;

[0036] Figure 6 Another-direction stereogram of a two-way ventilation component according to some embodiments;

[0037] Figure 7 Side view of a two-way ventilation component according to some embodiments;

[0038] Figure 8 For Figure 7 Cross-sectional view along the A-A direction in

[0039] Figure 9 Exploded view of the second motor according to some embodiments;

[0040] Figure 10 Cross-sectional view of the second motor according to some embodiments;

[0041] Figure 11 Cross-sectional view of the exhaust fan according to some embodiments;

[0042] Figure 12 Front view of the fresh air fan according to some embodiments;

[0043] Figure 13 Side view of the fresh air fan according to some embodiments;

[0044] Figure 14 Exploded view of the two-way ventilation component (some parts are hidden) in one direction according to some embodiments;

[0045] Figure 15 Exploded view of the two-way ventilation component in another direction according to some embodiments;

[0046] Figure 16 Stereogram of the two-way ventilation component according to some embodiments;

[0047] Figure 17Schematic diagram of the assembly relationship between an exhaust air volute, a fixing bracket and an exhaust air fan according to some embodiments;

[0048] Figure 18 Stereogram of a base according to some embodiments;

[0049] Figure 19 Front view of the main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0050] Figure 20 Stereogram of the casing in the rear view direction according to some embodiments;

[0051] Figure 21 Structure design derivation diagram of a two-way ventilation component according to some embodiments.

[0052] Reference numerals:

[0053] Wall-mounted air conditioner 10000, main body 1000,

[0054] Casing 1, accommodation cavity V1, first chamber V11, second chamber V12,

[0055] Heat exchange air inlet 101, heat exchange air outlet 102, casing air inlet 103, first connecting air duct V04, pipe avoidance port 104, casing air outlet 105,

[0056] Indoor heat exchanger 2,

[0057] Base 3, volute tongue air duct V03, end plate 31, positioning notch 311, first seat frame 301, second seat frame 302, mating port 3021, heat exchange fan 41, first motor 42,

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

[0059] Fresh air fan 6, fresh air wheel disc 61, wheel disc holes 612, fresh air blades 62, first fresh air blade 621, second fresh air blade 622,

[0060] Exhaust air fan 7, accommodation groove V07, exhaust air wheel disc 71, exhaust air blades 72, blade side edge 721, straight section 7211, tapered section 7212, side edge depression 73, protrusion 74,

[0061] Fresh air volute 8, fresh air duct V01, volute cavity V011, fresh air cavity V012, cavity V0121, fresh air inlet 801, fresh air outlet 802, installation port 803, purification air inlet 804, fresh air diffuser section 805, first hanging ear 806, second hanging ear 807,

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

[0063] The second volute 82, the second volute half body 821, the axial ventilation opening 8211, the fan cover 822, the positioning boss 8221, the avoidance notch 82211, the first positioning surface F1, the second positioning surface F2,

[0064] The exhaust volute 9, the exhaust air duct V02, the exhaust air inlet 901, the exhaust air outlet 902, the indoor exhaust air outlet 903, the exhaust air diffuser section 905, the second volute shroud 906, the air guide ring 91,

[0065] The purification member 11, the filter net 111, the first switching valve 12, the electric control box 13, the fresh air inlet pipe 141, the exhaust air outlet pipe 142, the second switching valve 15, the air guide grille 16, the fixing bracket 17, the bracket end plate 171, the bracket shroud 172, the wire passing hole 173, the installation cavity 174, the insulating sleeve 18, the expansion pipe 19, the bearing seat 20. Specific embodiments

[0066] Next, some embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0067] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular form "comprises" and the present participle form "comprising", are interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example", or "some examples", etc., are intended to indicate that the specific features, structures, materials, or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0068] Hereinafter, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0069] When describing some embodiments, the expressions "connected" and its derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content herein.

[0070] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0071] The use of "suitable for" or "configured to" herein means open and inclusive language, which does not exclude devices suitable for or configured to perform additional tasks or steps.

[0072] As used herein, "about", "substantially", or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of the specific quantity (i.e., the limitations of the measurement system).

[0073] As used herein, "parallel", "perpendicular", "equal" include the stated situations and situations similar to the stated situations, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, where the acceptable deviation range of approximate parallel may be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, where the acceptable deviation range of approximate perpendicular may also be, for example, within 5° deviation. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range of approximate equality may be, for example, that the difference between the two equal values is less than or equal to 5% of either one of them.

[0074] Some embodiments of the present disclosure provide a wall-mounted air conditioner 10000.

[0075] Generally, the air conditioner is a split-type air conditioner, including an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by pipelines to transfer refrigerant. The indoor unit includes an indoor heat exchanger 2 and a heat exchange fan 41.

[0076] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan, and a throttling member. The compressor, the outdoor heat exchanger, the throttling member, 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.

[0077] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form high-pressure refrigerant.

[0078] 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 depressurized refrigerant absorbs heat from the outdoor air through the outdoor heat exchanger and evaporates.

[0079] In some embodiments, the outdoor heat exchanger may include heat exchange fins to expand 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.

[0080] 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.

[0081] The throttling member is connected between the outdoor heat exchanger and the indoor heat exchanger 2. The throttling member is used to adjust the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger 2 to adjust 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 throttling member can be a throttle tube, an electronic valve, etc. When the throttling member is an electronic valve, the opening degree of the throttling member is adjustable to adjust the flow rate and pressure of the refrigerant flowing through the throttling member.

[0082] In some solutions, the air conditioner may include a four-way valve. The four-way valve is connected in the refrigerant circuit and is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner executes the cooling mode or the heating mode.

[0083] The indoor heat exchanger 2 is configured to exchange heat between the indoor air and the refrigerant flowing through the indoor heat exchanger 2. In some embodiments, the indoor heat exchanger 2 may include heat exchange fins to increase the contact area between the indoor air and the refrigerant flowing through the indoor heat exchanger 2, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0084] 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, and the heat exchange fan 41 provides power for the flow of the indoor air.

[0085] The air conditioner may include a control device, which is mainly used to control the operating frequency of the compressor and the opening degree of the throttling element. Some control devices can also control the rotational speed of the outdoor fan and the rotational speed of the heat exchange fan 41, etc. The control device is connected to the compressor, the throttling element, the outdoor fan and the heat exchange fan 41 through data lines to transmit communication information.

[0086] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device.

[0087] The non-transitory computer-readable storage medium may include a magnetic storage device (e.g., a hard disk, a floppy disk, or a magnetic tape), a smart card, or a flash memory device (e.g., an erasable programmable read-only memory (EPROM), a card, a stick, or a thumb drive).

[0088] Currently, most wall-mounted air conditioners are limited by their volume and weight, and the functions they can achieve are relatively limited. Usually, they can only cool or heat the indoor air. After the user has turned on the air conditioner for a long time, if they feel that the indoor air is dirty and stuffy and need to open the window for ventilation, it is not only troublesome to operate, but also the indoor cold air or warm air will quickly escape from the window during the window-opening period, affecting people's comfort.

[0089] Some fresh air air conditioners in the related art suck fresh air from the outside through a fresh air device and discharge the indoor air through an exhaust device. However, due to factors such as unreasonable structural design, the quality of the fresh air blown into the room by the fresh air device is relatively low, and the purpose of improving the indoor air quality cannot be achieved.

[0090] To solve the above problems, some embodiments of the present disclosure provide a wall-mounted air conditioner 10000. By adjusting and setting the structures and relative positions of components such as the second motor, the exhaust fan, and the motor housing, it is possible to improve the cleanliness of the inhaled fresh air while achieving simultaneous exhaust and intake of air in the room.

[0091] For example, the wall-mounted air conditioner 10000 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.

[0092] The following describes the wall-mounted air conditioner 10000 according to some embodiments of the present disclosure with reference to the accompanying drawings.

[0093] The wall-mounted air conditioner 10000 according to some embodiments of the present disclosure, as Figure 1 and Figure 2 shown, includes: a main body 1000.

[0094] The main body 1000 includes: a housing 1. As Figure 20 shown, an accommodation cavity V1 is formed inside the housing 1, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the housing 1. The housing 1 can play a protective role and constitute the overall outer shape structure of the wall-mounted air conditioner 10000.

[0095] Generally, the housing 1 is an elongated shell 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 as a whole and forms a small angle with the horizontal plane.

[0096] 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. Refrigerant flows inside the indoor heat exchanger 2 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.

[0097] 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.

[0098] Referring to Figure 3 and Figure 4, the main body 1000 further includes a base 3, and the base 3 is disposed in the accommodation cavity V1. The base 3 is an installation and support structure inside the main body 1000, and the indoor heat exchanger 2 can be installed on the base 3. For example, a volute tongue air duct V03 is formed on the base 3. After the indoor air enters the casing 1, the flow direction is guided through the volute tongue air duct V03, ensuring that the resistance suffered by the indoor air when flowing through the indoor heat exchanger 2 is small.

[0099] Referring to Figure 4 , the main body 1000 further includes: a heat exchange fan 41, and the heat exchange fan 41 is disposed in the volute tongue air duct V03.

[0100] In some embodiments, the heat exchange fan 41 is, for example, a cross-flow fan, which has low noise and a large air volume, and the air outlet wind speed of the cross-flow fan is relatively evenly distributed along the axial direction of the cross-flow fan, which is beneficial to increasing the air supply distance and the air supply range. Moreover, when a cross-flow fan is adopted and the cross-flow fan is disposed 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.

[0101] Referring to Figure 4 , the main body 1000 further includes: a first motor 42, and the first motor 42 is disposed in the accommodation cavity V1. The first motor 42 is used to drive the heat exchange fan 41 to rotate, so that the air can perform heat exchange between the inside of the air conditioner and the indoor space.

[0102] By providing a heat exchange air outlet 102 and a heat exchange air inlet 101 in the casing 1, when the heat exchange fan 41 operates, the indoor air can be sucked into the casing 1 from the heat exchange air inlet 101. After the indoor air exchanges heat with the indoor heat exchanger 2, the heat-exchanged air is sent to the room from the heat exchange air outlet 102.

[0103] Thus, the adjustment of the indoor environmental temperature can be realized. 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.

[0104] In some embodiments, in the height direction of the main body 1000, the heat exchange air inlet 101 is located above the heat exchange air outlet 102, so that air can be introduced from above and discharged from below.

[0105] For example, the height direction of the main body 1000 is the up-and-down direction.

[0106] It can be understood that the main body 1000 is usually installed on the wall. To avoid interfering with people's daily lives, 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 or the ground. In this way, the resistance consumed 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.

[0107] Referring to Figure 1 and Figure 2 , the heat exchange air inlet 101 is located above the heat exchange air outlet 102. The heat exchange air inlet 101 can intake air from above, so as to avoid intake air from the heat exchange air outlet 102 and prevent 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, reducing the process of the heat exchange air idling without participating in indoor heat exchange.

[0108] In some 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 of the wall-mounted air conditioner 10000.

[0109] 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.

[0110] It can be understood that the side where the main body 1000 is connected to the wall is usually referred to as the back or the rear side, and the side opposite to the rear side is referred to as 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.

[0111] In some embodiments, the heat exchange air outlet 102 is located at the front side of the housing 1 and close to the bottom. For example, the heat exchange air outlet 102 is located at the front lower corner of the housing 1. In this case, the heat exchange air blown out by the heat exchange air outlet 102 will flow downward while flowing forward. 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, enabling the people or objects on the ground to be in a suitable indoor environment as soon as possible.

[0112] In some embodiments of the present disclosure, 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.

[0113] The heat exchange fan 41 is placed on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101, which can evenly distribute the aerodynamic force generated when the heat exchange fan 41 rotates. Part of it is distributed to the air inlet side, enabling the inhaled air to overcome the air 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, enabling the heat-exchanged air to be blown out from the heat exchange air outlet 102 with a longer conveying distance.

[0114] In some embodiments of the present disclosure, as Figure 4 shown, the first motor 42 is located at one end of the main body 1000 in the length direction. In this way, it is convenient for 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 consistent with the up and down direction, and the thickness direction of the main body 1000 is consistent with the front and back direction.

[0115] In some embodiments of the present disclosure, as Figure 8 shown, the wall-mounted air conditioner 10000 further includes a second motor 5. The second motor 5 is disposed in the accommodation cavity V1 and is located at the other end of the main body 1000 in the length direction.

[0116] 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, with little mutual 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.

[0117] Referring to Figure 9 and Figure 10 , the second motor 5 includes: a stator portion 51 and a rotor portion 52. The stator portion 51 and the rotor portion 52 are the main parts of the second motor 5. The stator portion 51 has a wound coil, and the coil generates an alternating magnetic field after being energized with alternating current. The rotor portion 52 generates induction and rotates in the alternating magnetic field.

[0118] For example, the rotor portion 52 can be a magnetic ring or a magnetic tile. For example, when the rotor portion 52 is a magnetic ring, the magnetic leakage loss can be reduced, the magnetic flux can be enhanced, and the power output efficiency of the second motor 5 can be improved. Moreover, when a magnetic ring is used, the magnetic field distribution is uniform, the anti-interference ability is good, and the mechanical accuracy is higher.

[0119] The second motor 5 is an outer rotor motor. In the radial direction of the stator portion 51, the rotor portion 52 is arranged around the outside of the stator portion 51. The second motor 5 selects an outer rotor motor. Not only is the structure of the outer rotor motor simple, but also since the rotor portion 52 is arranged around the outside of the stator portion 51 in the radial direction of the stator portion 51, the diameter size of the rotor portion 52 is large, and a relatively large torque can be obtained. It can be used in scenarios such as low-speed high-torque and direct drive. That is, when the second motor 5 outputs power outward, a speed reducer does not need to be set to reduce speed and increase torque, saving the space occupied by the speed reducer.

[0120] In addition, the rotor portion 52 is located on the radial outer side of the stator portion 51, with a relatively large heat dissipation area and good heat dissipation performance, which is beneficial to the stable operation of the second motor 5. And after being arranged in this way, the diameter size of the second motor 5 can be controlled to be relatively small, without occupying the space of the air flow channel.

[0121] Refer to Figure 9 and Figure 10 The second motor 5 further includes: a motor housing 53, and the motor housing 53 can support and protect the main body part of the second motor 5.

[0122] The motor housing 53 is fixedly connected to the rotor portion 52, and the motor housing 53 rotates synchronously with the rotor portion 52. In this way, the rotor portion 52 can be fixed by the motor housing 53, which is convenient for connecting with external structures.

[0123] The second motor 5 further includes: an output shaft 532, the output shaft 532 is fixedly connected to the motor housing 53, and extends along the axial direction of the motor housing 53 toward the side of the heat exchange fan 41. That is to say, the main body part 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.

[0124] Refer to Figure 8 The wall-mounted air conditioner 10000 further includes: a fresh air fan 6, the fresh air fan 6 is a centrifugal fan with axial air 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.

[0125] Refer to Figure 8 The wall-mounted air conditioner 10000 further includes: an exhaust fan 7, the exhaust fan 7 is a centrifugal fan with axial air intake and radial air outlet. In the length direction of the 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. For example, when the second motor 5 is in the working state, it drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously.

[0126] The characteristics of the centrifugal fan itself include a compact structure, a large air volume, and low noise. Moreover, when the rotational speed decreases, the fan noise decreases significantly. Therefore, for the fresh air fan 6 and the exhaust fan 7, choosing a centrifugal fan with a smaller size can meet the requirement of a large air volume. The vibration noise of the centrifugal fan is small and it is not easy to resonate with the indoor heat exchanger 2, which is beneficial to reducing the overall vibration and noise of the wall-mounted air conditioner 10000.

[0127] 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. For example, the fresh air fan 6 takes in air axially and discharges air radially, and the exhaust fan 7 takes in air axially and discharges air radially. The fresh air fan 6 and the exhaust fan 7 take in air from two ends far away from each other, and then 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 the air volume, and reduce noise.

[0128] Refer to Figures 5 - 8 , the wall-mounted air conditioner 10000 further includes: a fresh air volute 8. A fresh air duct V01 is formed inside the fresh air volute 8. The fresh air fan 6 is installed inside the fresh air volute 8. A fresh air inlet 801 and a fresh air outlet 802 are formed on the fresh air volute 8. When the fresh air fan 6 rotates, outdoor air can enter the fresh air volute 8 from the fresh air inlet 801, and the outdoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802.

[0129] Refer to Figures 5 - 8 , the wall-mounted air conditioner 10000 further includes: an exhaust volute 9. The exhaust volute 9 is located on the side of the fresh air volute 8 facing the second motor 5. An exhaust duct V02 is formed inside the exhaust volute 9. The exhaust fan 7 is installed inside the exhaust volute 9. An exhaust air inlet 901 and an exhaust air outlet 902 are formed on the exhaust volute 9. When the exhaust fan 7 rotates, indoor air can enter the exhaust volute 9 from the exhaust air inlet 901, and the indoor air entering the exhaust volute 9 can be discharged to the outside from the exhaust air outlet 902.

[0130] In some embodiments of the present disclosure, the fresh air volute 8 and the fresh air fan 6 form a fresh air device. The fresh air fan 6 is disposed in the fresh air duct V01 and is used to drive the air flow to be inhaled from the fresh air inlet 801 and discharged to the room through the fresh air outlet 802. The operation of the fresh air fan 6 provides the power for the fresh air to flow.

[0131] Thus, by providing 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 poor, the fresh air fan 6 can drive the relatively fresh outdoor air into the indoor environment to improve the indoor air flow environment.

[0132] In some embodiments of the present disclosure, an exhaust volute 9 and an exhaust fan 7 form an exhaust device. The exhaust fan 7 is disposed in an exhaust air duct V02 and is configured to drive air flow to be inhaled from an exhaust air inlet 901 and discharged out of the room through an exhaust air outlet 902. The operation of the exhaust fan 7 provides the driving force for the flow of the contaminated air flow.

[0133] Thus, by providing the cooperation of the exhaust air duct V02 and the exhaust fan 7, when the air in the room is relatively contaminated or of poor air quality, the exhaust fan 7 can suck and discharge the contaminated air flow in the indoor space. After the indoor air volume decreases in this way, fresh air will be inhaled from the outside or from other rooms through doors and windows, etc., so as to reduce the contamination degree of the indoor air.

[0134] The second motor 5, the fresh air fan 6, the exhaust fan 7, the fresh air volute 8 and the exhaust volute 9 form a two-way ventilation assembly, and the two-way ventilation assembly is disposed in the main body 1000. The two-way ventilation assembly can provide fresh air for the room and can discharge the indoor air to the outside.

[0135] It should be noted that in the wall-mounted air conditioner 10000, the operation mode of the two-way ventilation assembly can be set according to actual use requirements.

[0136] In some embodiments, the two-way ventilation assembly can simultaneously operate in a fresh air mode and an exhaust mode, that is, the fresh air duct V01 and the exhaust air duct V02 can be opened simultaneously. While the contaminated air flow in the room flows to the outdoor space, the fresh air flow outside can also enter the indoor space. Through the combination of the one-in and one-out air flow driving, 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.

[0137] Moreover, since fresh outdoor air is supplemented into the room while discharging the indoor air to the outside, the indoor air volume is kept sufficient, 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 leaks of gas or other gases in the room, the two-way ventilation assembly can be set to simultaneously operate in the fresh air mode and the exhaust mode to achieve rapid ventilation. And compared with the design of simply introducing fresh air in the conventional fresh air structure, the two-way ventilation assembly in some embodiments of the present disclosure has a larger purification flow rate per unit time, a higher ventilation efficiency, and a better purification effect.

[0138] Moreover, during ventilation, it is avoided that the indoor temperature changes violently like directly opening a window, so as to avoid discomfort caused to the indoor personnel due to sudden increase or decrease in temperature. And the position of the main body 1000 is relatively high, and the ventilation position will not cause discomfort because it is too close to people.

[0139] In some embodiments, the two-way ventilation component can operate in 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.

[0140] 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.

[0141] Since the two-way ventilation component needs to be provided in the wall-mounted air conditioner 10000 in some embodiments of the present disclosure, and the wall-mounted air conditioner 10000 has size limitations and weight limitations due to being hung on the wall. To avoid excessive increase in the size and weight of the wall-mounted air conditioner 10000 after adding the two-way ventilation component, in some embodiments of the present disclosure, many restrictions and optimizations are carried out in the design of the two-way ventilation component, so that the designed wall-mounted air conditioner 10000 has practical use and promotion value.

[0142] For the convenience of description and to avoid confusion with the structural description in some embodiments of the present disclosure during the optimization process, the second motor 5 in the optimization is called the preset second motor 01, the fresh air fan 6 in the optimization is called the preset fresh air fan 02, and the exhaust fan 7 in the optimization is called the preset exhaust fan 03. The preset second motor 01, the preset fresh air fan 02 and the preset exhaust fan 03 can be collectively called the double impeller mechanism 010, such as Figure 21 shown.

[0143] Such as Figure 21 As shown in (a), according to the size limitation of the wall-mounted air conditioner 1000, the limited lateral dimension space that can be vacated for the double impeller mechanism 010 is limited. Assuming that only x0 can be given, the total axial thickness of the double impeller mechanism 010 can be regarded as x0. After determining the power requirements of the fresh air and the exhaust air, the motor power of the preset second motor 01 can be determined, and the motor type is selected according to the motor power to obtain the axial thickness x1 of the main body part of the preset second motor 01.

[0144] Such as Figure 21As shown in Fig. (b), after removing the main body part of the preset second motor 01 from the dual - wind - wheel mechanism 010, the lateral space size left is limited, and the axial thickness is insufficient by (x0 - x1). At this time, if the preset fresh - air fan 02 and the preset exhaust fan 03 are both installed on the output shaft of the preset second motor 01, the sum of the axial thickness x2 of the preset fresh - air fan 02 and the axial thickness x3 of the preset exhaust fan 03 is less than (x0 - x1), and both x2 and x3 are relatively small, which is not conducive to meeting the requirements of generating a large fresh - air volume and exhaust - air volume, and the design difficulty is relatively high.

[0145] As Figure 21 As shown in Fig. (c), to improve the structural compactness of the components in the dual - wind - wheel mechanism 010, the preset second motor 01 is selected as an outer - rotor motor. To meet the design requirement that the fresh - air volume is greater than the exhaust - air volume, the preset fresh - air fan 02 is selected to be installed on the output shaft of the preset second motor 01, and the preset exhaust fan 03 is installed on the main body part of the preset second motor 01. In this way, the main body part of the preset second motor 01 will not occupy the fresh - air duct space. At this time, the axial thickness x2 of the preset fresh - air fan 02 should be set as large as possible, and x2 is approximately equal to (x0 - x1). The axial thickness x3 of the preset exhaust fan 03 should be set as large as possible, and x3 is approximately equal to x1.

[0146] After such a design, through calculation, the fresh - air volume is still insufficient. The determining factors of the air volume of a fan include the blade area. Usually, the position of the blade is farther from the center of the fan and closer to the outer edge of the fan. At this time, by adjusting the axial dimension of the fan blade, the blade area can be increased, and the axial thickness of the central part of the fan can be kept unchanged.

[0147] Therefore, as Figure 21 shown in Fig. (d), the blades of the preset fresh - air fan 02 in (c) can be extended towards the direction of the preset exhaust fan 03, avoiding the main body part of the preset second motor 01. The axial dimension of the outer - edge part with blades of the preset fresh - air fan 02 is adjusted from x2 in (c) to x2 - 1 in (d), and the axial - thickness dimension of the central part of the preset fresh - air fan 02 can still be retained as x2 in (c). In this way, the blade area of the preset fresh - air fan 02 is increased, and the fresh - air volume can be increased significantly.

[0148] As Figure 21 shown in Fig. (e), to adapt to the changed shape of the preset fresh - air fan 02, the outer - edge part with blades of the preset exhaust fan 03 can be reduced towards the direction away from the preset fresh - air fan 02, and the axial thickness of the central part of the preset exhaust fan 03 can be kept unchanged. Thus, for the finally obtained preset exhaust fan 03, the axial thickness of its outer - edge part is adjusted from x3 in (c) to x3 - 1 in (e).

[0149] Finally, the central part and the outer edge part of the preset exhaust fan 03 cannot be flush axially. The central part of the preset exhaust fan 03 protrudes towards the preset fresh air fan 02 relative to the outer edge part. At this time, although the exhaust air volume is reduced, it can still meet the exhaust air demand of the wall-mounted air conditioner 10000.

[0150] It can be understood that after the styling layout of the dual impeller mechanism 010 is determined, the structures of the preset second motor 01, the preset fresh air fan 02, and the preset exhaust fan 03 are further refined and designed, and finally the second motor 5, the fresh air fan 6, and the exhaust fan 7 in some embodiments of the present disclosure are obtained.

[0151] In some embodiments, the second motor 5 is an outer rotor motor. The second motor 5 includes: a stator portion 51, a rotor portion 52, a motor housing 53, and an output shaft 532. The stator portion 51 has a wound coil. Radially of the stator portion 51, the rotor portion 52 is disposed around the outside of the stator portion 51. The motor housing 53 is fixedly connected to the rotor portion 52, and the output shaft 532 is fixedly connected to the motor housing 53, and the output shaft 532 extends along the axial direction of the motor housing 53 towards the side of the heat exchange fan 41.

[0152] In some embodiments, 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.

[0153] In some embodiments, the exhaust fan 7 is a centrifugal fan with axial air inlet and radial air outlet. In the length direction of the main body 1000, the exhaust fan 7 is located on the side of the fresh air fan 6 facing the second motor 5. The exhaust fan 7 is sleeved on the radial outside of the motor housing 53, and the exhaust fan 7 is fixedly connected to the motor housing 53. The second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously in the working state.

[0154] In some embodiments, 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. The rotation of the fresh air fan 6 can cause outdoor air to enter the fresh air volute 8 from the fresh air inlet 801, and can cause the outdoor air entering the fresh air volute 8 to enter the room from the fresh air outlet 802.

[0155] In some embodiments, as Figure 8As shown, the exhaust air volute 9 is located on the side of the fresh air volute 8 facing the second motor 5. An exhaust air duct V02 is formed inside the exhaust air volute 9. The exhaust air fan 7 is installed inside the exhaust air volute 9. An exhaust air inlet 901 and an exhaust air outlet 902 are formed on the exhaust air volute 9. When the exhaust air fan 7 rotates, indoor air can enter the exhaust air volute 9 from the exhaust air inlet 901, and the indoor air entering the exhaust air volute 9 can be discharged to the outside from the exhaust air outlet 902.

[0156] In some embodiments, the second motor 5 is located at the end of the main body 1000 in the length direction, and the axial direction of the second motor 5 is arranged along the length direction of the main body 1000. The second motor 5 is the common power source for the fresh air device and the exhaust air device of the two-way ventilation component. To ensure the operation of the fresh air device and the exhaust air device, 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 have a sufficiently large size.

[0157] In some embodiments, on the premise that the size parameters of the second motor 5 are generally determined, when arranging the fresh air device and the exhaust air device 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.

[0158] In some embodiments, both the fresh air fan 6 and the exhaust air fan 7 adopt centrifugal fans and are connected to the same motor. This not only saves the number of motors, but also keeps the two centrifugal fans arranged in a stacked manner along the axial direction of the second motor 5, that is, the two centrifugal fans are stacked along the length direction of the main body 1000.

[0159] In some embodiments, 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 and make the length of the main body 1000 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.

[0160] 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.

[0161] In the above solution, by using an outer rotor motor for the second motor 5, the exhaust fan 7 is sleeved on the radial outer side of the motor housing 53. A part of the second motor 5 in the motor housing 53 is embedded in the exhaust fan 7, and a part of the output shaft 532 is embedded in the fresh air fan 6, so that in the length direction of the main body 1000, the second motor 5 almost overlaps with the exhaust fan 7 and the fresh air fan 6, and the parts of the exhaust fan 7 and the fresh air fan 6 located outside the second motor 5 in the axial direction are less, making the overall axial dimension of the two-way ventilation component close to the axial dimension of the second motor 5, so that the length dimension of the main body 1000 can be controlled.

[0162] For example, the main body part of the second motor 5 is located in the exhaust fan 7 instead of 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 device sucks fresh air from the outside to the inside, and the cold generated by the wall-mounted air conditioner 10000 can still be retained in the room with little cold loss.

[0163] In some embodiments, the indoor air is discharged outdoors through the exhaust device. 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 occupying the space of the exhaust duct V02 is reduced, leaving more space for the fresh air duct V01, which is beneficial to ensuring a larger fresh air volume.

[0164] Moreover, since the second motor 5 uses an outer rotor motor that can adapt to scenarios such as low-speed high torque and direct drive, a speed reducer does not need to be set, and the exhaust fan 7 can be directly sleeved on the radial outer side of the motor housing 53. This not only avoids the increase in the overall axial dimension caused by the speed reducer, but also avoids the increase in the structural layout difficulty caused by the speed reducer. Just fixedly connecting 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 can make the exhaust fan 7 and the fresh air fan 6 arranged coaxially and stacked, rotate synchronously and maintain a small gap, without requiring too large a gap. In this way, it also ensures that the overall axial dimension of the two-way ventilation component is close to the axial dimension of the second motor 5, and the length dimension of the main body 1000 can be controlled.

[0165] In some embodiments, 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 cold or heat loss in the room and improve the comfort when the fresh air is blown into the room. For example, the fresh air device where the fresh air fan 6 is located is close to the indoor heat exchanger 2. The fresh air sucked from the outside can absorb the cold or heat released by the indoor heat exchanger 2 before being blown into the room, so that the fresh air is as close as possible to the indoor temperature before being blown into the room.

[0166] 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 device 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.

[0167] In some embodiments, 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. For example, the exhaust volute 9 of the exhaust device, 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 device, reducing the risk of water accumulation and bacterial growth in the exhaust duct V02, and reducing the risk of condensed water entering the second motor 5 to cause motor damage. When the fresh air fan 6 rotates, the fresh air device 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.

[0168] In addition, in some embodiments, 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 take in air from the indoor room, the air intake energy consumption it needs to consume is also relatively low. For example, when the wall-mounted air conditioner 10000 is cooling or heating, the heat exchange fan 41 operates to drive the indoor air intake to flow through the indoor heat exchanger 2. The exhaust fan 7 is located at the end of the main body 1000, and the air intake end of the exhaust fan 7 is far from the air intake end of the heat exchange fan 41. The exhaust fan 7 does not need to draw air from the air intake end of the heat exchange fan 41, and the air intake energy consumption of the exhaust fan 7 can be reduced, so that sufficient exhaust air volume can be guaranteed, and sufficient indoor air can also be guaranteed to flow 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.

[0169] In some embodiments, the fresh air device and the exhaust air device are effectively integrated, enabling the two devices to rationally utilize their respective structural and spatial characteristics to complete a flat design. This not only reduces the overall size and weight of the two-way ventilation component, making the two-way ventilation component lightweight and the air ducts non-interfering with each other. The two-way ventilation component is arranged at one end in the length direction of the main body 1000. Compared with the main body without the two-way heat exchange component, only the lateral length is increased, and the height and thickness of the main body 1000 can generally remain unchanged or change slightly, making the appearance of the main body 1000 thin and light. When hung on the wall, it will not affect the indoor space layout due to being too obtrusive, nor will it be difficult to fix the wall-mounted air conditioner 10000 due to being too heavy, reducing the risk of falling off the wall. The overall wall-mounted air conditioner 10000 is still a thin and light model, which is not only beautiful when hung on the wall but also has a controllable weight.

[0170] In some embodiments, such as Figures 8 - 10 shown, a part of the output shaft 532 is located inside the stator portion 51, and the output shaft 532 is rotatably connected to the stator portion 51. In this way, the output shaft 532 can be supported by the stator portion 51, improving the axial and radial bending moment bearing capacity on the output shaft 532 and enhancing the rotational stability of the output shaft 532.

[0171] For example, as Figure 10 shown, a part of the motor housing 53 is located radially outside the rotor portion 52, increasing the connection area and realizing the stable fixation of the rotor portion 52.

[0172] In some embodiments, the motor housing 53 and the exhaust fan 7 are integrally injection-molded parts, thereby reducing the processing steps and improving the connection firmness between the motor housing 53 and the exhaust fan 7.

[0173] In some embodiments, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000. It can be understood that the fresh air inlet 801 needs to be connected to a pipe to introduce outdoor air. Here, this pipe is called the fresh air introduction pipe 141 (as Figure 2 shown). The fresh air introduction pipe 141 can be a part of the wall-mounted air conditioner 10000 or a fresh air introduction pipe 141 separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0174] The fresh air inlet 801 is arranged below the main body 1000. In this way, the fresh air inlet pipe 141 can be connected to the fresh air inlet 801 from below, and the connection part extends substantially in the vertical direction instead of in the front-rear direction, which would 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 of the bottom of this circular shape. This free space can be used to arrange the fresh air inlet 801 to connect the fresh air inlet pipe 141. As a result, 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, thereby controlling the height dimension of the main body 1000.

[0175] In some embodiments, in the height direction of the main body 1000, the exhaust air outlet 902 is located below the main body 1000. It can be understood that the exhaust air outlet 902 needs to be connected to a pipe to guide the indoor air to the outside. Here, this pipe is called the exhaust air outlet pipe 142 (as Figure 2 shown). The exhaust air outlet pipe 142 can be a 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.

[0176] The exhaust air outlet 902 is arranged below the main body 1000. In this way, the exhaust air outlet pipe 142 can be connected to the exhaust air outlet 902 from below, and the connection part extends substantially in the vertical direction instead of in the front-rear direction, which would 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 of the bottom of this circular shape. And based on the characteristics of the axial air inlet and radial air outlet of the exhaust air fan 7, the diffuser section of the exhaust air volute 9 can be arranged substantially in the vertical direction and can be placed in the front-side or rear-side free space mentioned above.

[0177] Here, the exhaust air outlet 902 is arranged to connect the exhaust air outlet pipe 142. As a result, 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, thereby controlling the height dimension of the main body 1000.

[0178] In some embodiments, such as Figure 2As shown, the wall-mounted air conditioner 10000 may include: a fresh air inlet pipe 141 connected to the fresh air inlet 801, and an exhaust 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 the lower part of the main body 1000. The fresh air inlet pipe 141 and the exhaust air outlet pipe 142 are two independent pipe fittings, which helps to separate the fresh air flow path and the exhaust air flow path from each other, without intersection, and reduces the risk of air leakage caused by cross-flow.

[0179] 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-mentioned 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, without affecting 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 with the upper roof, and the installation of the wall-mounted air conditioner 10000 is more convenient and fast.

[0180] In some embodiments, the air inlet direction of the fresh air inlet 801 is set upward. For example, 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 length of the wall-mounted air conditioner 10000 to be overly elongated.

[0181] In some embodiments, 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.

[0182] In some embodiments, the air outlet direction of the exhaust air outlet 902 is set downward. For example, 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 length of the wall-mounted air conditioner 10000 to be overly elongated. In some embodiments, 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.

[0183] Of course, some embodiments of the present disclosure are not limited thereto, such as Figure 1As shown, the pipe diversion avoidance port 104 can also be arranged 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 port 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 port 104 on the side wall of the housing 1, and then extends to the outside.

[0184] It can be understood that a refrigerant pipe and a drain pipe are usually arranged at one end of the main body 1000 in the length direction. The refrigerant pipe is used to connect the indoor heat exchanger 2 with the compressor and the outdoor heat exchanger outside, and the drain pipe is used to drain the condensed water generated in the wall-mounted air conditioner 10000.

[0185] The pipe diversion avoidance port 104 is arranged on the side wall of the housing 1, and then the fresh air inlet pipe 141 and the exhaust air outlet pipe 142 are arranged horizontally and extended out, which is convenient for arranging at least one of the fresh air inlet pipe 141 and the exhaust air outlet pipe 142 side by side with the drain pipe and the refrigerant pipe. Then, the multiple pipes arranged side by side are covered by an outer bundle pipe or a binding band, so that the multiple pipes are in the shape of one pipe in appearance, so that the number of connecting pipes on the wall-mounted air conditioner 10000 after installation is small and the appearance is simple. This not only facilitates assembly but also avoids the risk of multiple pipes bumping against each other.

[0186] In some embodiments, as Figure 8 and Figure 11 shown, the exhaust fan 7 forms a receiving groove V07 at the radial center, and at least a part of the stator part 51, at least a part of the rotor part 52, and at least a part of the motor housing 53 of the second motor 5 are received in the receiving groove V07.

[0187] For example, the hub of the exhaust fan 7 forms the receiving groove V07. At this time, the main body part (i.e., the stator part 51 and the rotor part 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.

[0188] 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 part 52. Therefore, the bending moment generated by the exhaust fan 7 on the second motor 5 is small, the exhaust fan 7 shakes less when rotating, the exhaust fan 7 operates stably and has low energy consumption.

[0189] In some embodiments, as Figure 1 shown, the housing 1 is provided with a housing air outlet 105. The housing air outlet 105 corresponds to the fresh air outlet 802 of the fresh air volute 8, so that the fresh air discharged from the fresh air outlet 802 is discharged from the housing air outlet 105.

[0190] In some embodiments, the fresh air outlet 802 is located directly in front of the main body 1000, and the housing air outlet 105 can correspondingly be arranged on the front side of the housing 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.

[0191] In some embodiments, the fresh air outlet 802 is located at the top of the main body 1000, and the housing air outlet 105 can correspondingly be arranged on the top wall of the housing 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 thus expanding the air supply area.

[0192] 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 housing 1 is relatively high, a part of the fresh air blown out from the fresh air outlet 802 at the top can be re-sucked into the accommodation cavity V1 through the heat exchange air inlet 101 and flow through the indoor heat exchanger 2.

[0193] 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 into the room from the heat exchange air outlet 102 is overall fresh, improving the uniformity of the distribution of the fresh air in the room.

[0194] In some 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 housing air outlet 105 can correspondingly be arranged below the housing 1.

[0195] 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 housing 1 is relatively low, when the fresh air outlet 802 blows out fresh air from below, the air outlet area of the housing 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.

[0196] 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 sucked into the heat exchange air inlet 101, reducing the proportion of the fresh air intake volume at the heat exchange air inlet 101, increasing the total air supply volume of the wall-mounted air conditioner 10000, and improving the overall circulation efficiency of the indoor air.

[0197] 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.

[0198] For example, 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, which not only ensures that the fresh air can reach the ground but also ensures that the fresh air can reach a sufficient distance.

[0199] For example, as Figure 1 and Figure 3 shown, a guide grille 16 is provided at the air outlet 105 of the casing 1 to adjust the air outlet direction of the fresh air.

[0200] 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.

[0201] For example, the exhaust air inlet 901 on the exhaust air volute 9 faces away from the indoor heat exchanger 2, and the air inlet area of the exhaust air inlet 901 just avoids the indoor heat exchanger 2. When there is condensate on the indoor heat exchanger 2, or condensate adheres to the surface of the parts near the indoor heat exchanger 2 in the accommodation cavity V1, the condensate is not easily sucked into the exhaust air duct V02 by the exhaust fan 7, reducing the risk of water accumulation and bacteria breeding in the exhaust air duct V02, and reducing the risk of motor damage caused by condensate entering the second motor 5. When the fresh air fan 6 rotates to intake air from the outside, the condensate on the indoor heat exchanger 2 will not be sucked into the fresh air duct V01 at this time, reducing the risk of water accumulation and bacteria breeding in the fresh air duct V01. In some embodiments, as Figure 1 shown, an air inlet 103 of the casing is provided at one end of the casing 1 where the second motor 5 is located, and the air inlet 103 of the casing is located at the top of the main body 1000. A first continuous ventilation duct V04 is formed between the air inlet 103 of the casing and the exhaust air inlet 901. The exhaust fan 7 rotates to drive the indoor air to enter the first continuous ventilation duct V04 from the air inlet 103 of the casing, and makes the indoor air enter the exhaust air volute 9 through the exhaust air inlet 901.

[0202] That is to say, there is no need to connect a physical pipeline between the air inlet 103 of the housing and the air inlet 901 of the exhaust. Only relying on the wind pressure, the air flow is sucked in from the top. The air inlet 103 of the housing is located at the top of the housing 1, that is, in the area that the user cannot see. Hiding the air inlet 103 of the housing can improve the aesthetic appearance.

[0203] In some embodiments, an air inlet 103 of the housing 1 is provided at one end where the second motor 5 is located, and the air inlet 103 of the housing is located on the side of the main body 1000. The exhaust fan 7 rotates to drive the indoor air to enter the interior of the housing 1 through the air inlet 103 of the housing, and enables the indoor air to enter the exhaust volute 9 through the air inlet 901 of the exhaust. That is to say, there is no need to connect a physical pipeline between the air inlet 103 of the housing and the air inlet 901 of the exhaust, and the air inlet 103 of the housing is located on the side of the main body 1000 and can face the air inlet 901 of the exhaust.

[0204] In this way, on the one hand, the air inlet path from the air inlet 103 of the housing to the air inlet 901 of the exhaust becomes shorter, 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 air intake of the exhaust.

[0205] In some embodiments, the exhaust fan 7 can be a plastic part, so it is light in weight and low in cost. Of course, in some embodiments of the present disclosure, this is not limited, and the exhaust fan 7 can also be a resin part, a metal part, etc.

[0206] In some embodiments, the exhaust fan 7 can be a plastic part, so it is light in weight and low in cost. In some embodiments, the exhaust fan 7 can also be a resin part, a metal part, etc.

[0207] In some embodiments, the fresh air fan 6 can be a plastic part, so it is light in weight and low in cost. In some embodiments, the fresh air fan 6 can also be a resin part, a metal part, etc.

[0208] Similarly, the exhaust volute 9 can be a plastic part, so it is light in weight and low in cost. For example, the exhaust volute 9 can be an injection molded part. In some embodiments, the exhaust volute 9 can also be a metal part, etc.

[0209] The fresh air volute 8 can be a plastic part, so it is light in weight and low in cost. For example, the fresh air volute 8 can be an injection molded part. In some embodiments, the fresh air volute 8 can also be a metal part, etc.

[0210] In some embodiments, the area of the outer circular surface of the fresh air fan 6 is S1, and the area of the outer circular surface of the exhaust fan 7 is S2. It satisfies that S1 > S2.

[0211] For example, S1 = ΠD1×h1, where D1 is the outer diameter of the fresh air fan 6, and h1 is the total axial thickness of the fresh air wheel disc 61 and the fresh air blades 62 on the fresh air fan 6.

[0212] The outer diameter D1 of the fresh air fan 6 refers to the diameter dimension at the farthest point from the axis of the fresh air fan 6. The fresh air fan 6 includes a fresh air wheel disc 61 and fresh air blades 62. The fresh air blades 62 are located at the outer edge of the fresh air wheel disc 61 and extend along the axial direction of the fresh air wheel disc 61. The total axial thickness of the fresh air wheel disc 61 and the fresh air blades 62 is h1. Here, the fresh air wheel disc 61 on the fresh air fan 6 can be one, or at least two spaced apart along the axial direction. On each side of the axial direction of each fresh air wheel disc 61, only one circle of fresh air blades 62 can be provided on one side, or one circle of fresh air blades 62 can be provided on each side. When all the fresh air wheel discs 61 and the fresh air blades 62 are projected vertically onto the axis of the fresh air fan 6, the distance between the two farthest points in the projection is equal to h1.

[0213] S2 = ΠD2×h2, where D2 is the outer diameter of the exhaust fan 7, and h2 is the total axial thickness of the fresh air wheel disc 61 and the fresh air blades 62 on the exhaust fan 7.

[0214] The outer diameter D2 of the exhaust fan 7 refers to the diameter dimension at the farthest point from the axis of the exhaust fan 7. The exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71 and extend along the axial direction of the exhaust wheel disc 71. The total axial thickness of the exhaust wheel disc 71 and the exhaust blades 72 is h2. Here, the exhaust wheel disc 71 on the exhaust fan 7 can be one, or at least two spaced apart along the axial direction. On each side of the axial direction of each exhaust wheel disc 71, only one circle of exhaust blades 72 can be provided on one side, or one circle of exhaust blades 72 can be provided on each side. When all the exhaust wheel discs 71 and the exhaust blades 72 are projected vertically onto the axis of the exhaust fan 7, the distance between the two farthest points in the projection is equal to h2.

[0215] With such a setting, the area of the outer circular surface of the fresh air fan 6 is large, and the area of the outer circular surface of the exhaust fan 7 is small, which is conducive to achieving a large fresh air volume under the condition of limited overall machine space size.

[0216] For example, according to the structural and functional requirements designed in some embodiments of the present disclosure, the outer diameter D1 of the fresh air fan 6 is greater than the outer diameter D2 of the exhaust air fan 7, which is beneficial to making the area swept by the blades of the fresh air fan 6 when rotating larger than the area swept by the blades of the exhaust air fan 7 when rotating. In this way, the fresh air volume is greater than the exhaust air volume, meeting the design requirements of the wall-mounted air conditioner 10000. That is, air is inhaled from the infinite outdoor space and sent indoors, which consumes less energy compared to sucking air from the relatively enclosed indoor space and exhausting it outdoors. Moreover, the air freshness in the outdoor environment is high, and inhaling air from the outdoor and blowing it into the indoor is more conducive to supplementing fresh air in the indoor space, replenishing the oxygen content and reducing the carbon dioxide content in the indoor air.

[0217] Moreover, by setting the outer diameter D2 of the exhaust air fan 7 to be smaller than the outer diameter D1 of the fresh air fan 6, it is easy to arrange the exhaust air outlet 902 of the exhaust air duct V02 and the fresh air outlet 802 of the fresh air duct V01 in a staggered manner on the outer periphery of the two-way ventilation component. In this way, on the one hand, it is convenient to connect the exhaust air lead-out pipe 142 to the exhaust air outlet 902 and the fresh air inlet pipe 141 to the fresh air outlet 802. On the other hand, it is easy to ensure that the flow paths of the fresh air and the exhaust air in the two-way ventilation component do not cross.

[0218] For example, as Figure 7 shown, the fresh air volute 8 has a fresh air diffuser section 805, and the fresh air outlet 802 is located at the end of the fresh air diffuser section 805. That is to say, the part of the fresh air volute 8 from its volute tongue to the fresh air outlet 802 along its tangential direction is the fresh air diffuser section 805. The exhaust air volute 9 has an exhaust air diffuser section 905, and the exhaust air outlet 902 is located at the end of the exhaust air diffuser section 905. That is to say, the part of the exhaust air volute 9 from its volute tongue to the exhaust air outlet 902 along its tangential direction is the exhaust air diffuser section 905.

[0219] For example, the extending directions of the fresh air diffuser section 805 and the exhaust air diffuser section 905 are different, that is, there is an included angle between the extending direction of the fresh air diffuser section 805 and the extending direction of the exhaust air diffuser section 905, so that the fresh air outlet 802 and the exhaust air outlet 902 are staggered. In Figure 7 the example, taking the vertical line passing through the axis of the second motor 5 as a reference quantity, the included angle between the extending direction of the fresh air diffuser section 805 and the vertical line is α1, and the included angle between the extending direction of the exhaust air diffuser section 905 and the vertical line is α2, and α1 and α2 are not equal. The included angle between the extending direction of the fresh air diffuser section 805 and the extending direction of the exhaust air diffuser section 905 is equal to (α2 - α1).

[0220] For example, the volute tongue of the fresh air volute 8 and the volute tongue of the exhaust air volute 9 are arranged in a staggered manner in the circumferential direction of the second motor 5.

[0221] In this way, it is easy to stagger the exhaust air outlet 902 of the exhaust air duct V02 and the fresh air outlet 802 of the fresh air duct V01 on the outer periphery of the two-way ventilation component, which is convenient for connecting the exhaust air lead-out pipe 142 to the exhaust air outlet 902 and the fresh air inlet pipe 141 to the fresh air outlet 802, avoiding interference caused by the too-close distance between the two pipe joints, and being convenient for both assembly and sealing.

[0222] Moreover, in some embodiments, the air outlet direction of the exhaust air outlet 902 is set downward, and the air outlet direction of the fresh air outlet 802 is set forward. In this way, not only can the pipe connection positions of the exhaust air outlet 902 and the fresh air outlet 802 be directly staggered, but also the downward setting of the air outlet direction of the exhaust air outlet 902 is convenient for connecting the fresh air inlet pipe 141, facilitating the installation of the fresh air inlet pipe 141 against the wall. With the air outlet direction of the fresh air outlet 802 being forward, the fresh air can be sent forward, increasing the fresh air supply range.

[0223] For example, in the height direction of the main body 1000, both the fresh air inlet 801 and the exhaust air outlet 902 are located below the main body 1000. In this way, the fresh air diffuser section 805 of the fresh air volute 8 and the exhaust air diffuser section 905 of the exhaust air volute 9 both extend downward, and the positions of the two diffuser sections are generally the same in the height direction, which can avoid the overall excessive height occupation of the fresh air volute 8 and the exhaust air volute 9, being beneficial to reducing the height dimension of the main body 1000.

[0224] For example, the exhaust air diffuser section 905 is located at the rear side of the exhaust air volute 9, and the air outlet direction of the exhaust air outlet 902 is set downward. In this way, when connecting the exhaust air lead-out pipe 142 to the exhaust air outlet 902, the exhaust air lead-out pipe 142 will not overly elongate the overall wall-mounted air conditioner 10000, and moreover, the exhaust air diffuser section 905 remains on the side of the exhaust air volute 9 against the wall, facilitating the shaping of the main body 1000 into a shape that is wider at the rear and narrower at the front.

[0225] When the main body 1000 is shaped into a shape that is wider at the rear and narrower at the front and is installed against the wall with the wider back, what people see when observing the wall-mounted air conditioner 10000 is the narrower front part, which is conducive to creating an impression that the wall-mounted air conditioner 10000 is thinner and lighter. This can reduce the sense of heaviness of the wall-mounted air conditioner 10000, and further reduce the sense of depression generated after the wall-mounted air conditioner 10000 is hung on the wall.

[0226] In some embodiments, while the air outlet direction of the fresh air outlet 802 is downward, it is inclined forward. This is beneficial for the wall-mounted air conditioner 10000 to send fresh air forward, ensuring that the fresh air can reach the ground and also ensuring that the fresh air can reach a sufficient distance.

[0227] For example, the fresh air outlet 802 is located on the front side of the exhaust air outlet 902. In this way, the distance between the fresh air outlet 802 and the exhaust air outlet 902 is more staggered, which is more conducive to reducing mutual interference and facilitating pipe connection.

[0228] In some embodiments, as Figure 7 shown, the length L1 of the fresh air diffuser section 805 is greater than the length L2 of the exhaust air diffuser section 905. The relatively long fresh air diffuser section 805 can provide a longer flow path and a more sufficient pressure boosting process for the air flow. This enables the air flow to effectively reduce its speed and gradually increase its pressure when passing through the fresh air diffuser section 805, which is beneficial for expanding the fresh air supply distance. Since the exhaust air is discharged outdoors, the consideration of the supply distance after the exhaust air outlet is not required. Therefore, the exhaust air diffuser section 905 can be set to be shorter.

[0229] In Figure 7 the example, the exhaust air diffuser section 905 is generally vertically arranged, and the fresh air diffuser section 805 is inclined. In this way, the length of the fresh air diffuser section 805 can be ensured without making the overall height of the component too high.

[0230] Moreover, in some embodiments, the fresh air volume is much larger than the exhaust air volume, and the length relationship between the fresh air diffuser section 805 and the exhaust air diffuser section 905 matches the air volume relationship.

[0231] In some embodiments, the outer diameter D1 of the fresh air fan 6 is greater than the outer diameter D2 of the exhaust air fan 7 to ensure that the fresh air volume is greater than the exhaust air volume.

[0232] Correspondingly, the fresh air volute 8 includes a first volute enclosure plate 812 surrounding the radially outer side of the fresh air fan 6, and the exhaust air volute 9 includes a second volute enclosure plate 906 surrounding the radially outer side of the exhaust air fan 7. The diameter of the first volute enclosure plate 812 is greater than the diameter of the second volute enclosure plate 906. This can make the component parts compact and reduce the overall occupied space.

[0233] Furthermore, more space can be vacated on the radially outer side of the second volute enclosure plate 906, enabling air to flow in the space on the radially outer side of the exhaust air volute 9 inside the housing 1. In this way, when the exhaust air volute 9 sucks in air from the exhaust air inlet 901, more air can enter, which is beneficial for increasing the exhaust air intake volume.

[0234] In some embodiments, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000, and in the length direction of the main body 1000, the fresh air outlet 802 is located between the exhaust air outlet 902 and the fresh air inlet 801. With such a setting, the pipe connection positions of the fresh air outlet 802, the exhaust air outlet 902, and the fresh air inlet 801 are compact, which is beneficial for reducing the overall size.

[0235] In some embodiments, as Figure 1As shown, the housing 1 is provided with a housing air outlet 105, and the housing air outlet 105 is provided corresponding to the fresh air outlet 802. Figure 3 As shown, the wall-mounted air conditioner 10000 may include: an expansion pipe 19 connected between the housing air outlet 105 and the fresh air outlet 802, and the flow area of the expansion pipe 19 increases in the direction toward the housing air outlet 105. In other words, the expansion pipe 19 causes the fresh air outlet to undergo a pressure expansion process again, thereby further increasing the fresh air pressure and further increasing the air supply range.

[0236] For example, the exhaust air outlet 902 and the fresh air inlet 801 are located below the main body 1000 and close to the rear side, so that there will not be too much interference with the expansion tube 19 after the connection.

[0237] In some embodiments, in the length direction of the main body 1000, the size L3 of the housing air outlet 105 (eg Figure 1 As shown), it is greater than the sum of the thicknesses of the fresh air fan 6 and the exhaust fan 7. Figure 12 As shown, the thickness of the fresh air fan 6 in the length direction of the main body 1000 is h1, and the thickness of the exhaust fan 7 in the length direction of the main body 1000 is H20. The sum of h1 and H20 is less than the length L3 of the housing air outlet 105. Such a device is to make the housing air outlet 105 longer in the length direction of the main body 1000, and make full use of the free space provided by the two-way ventilation component in this direction. This is conducive to lengthening the fresh air outlet in this direction, and is conducive to expanding the fresh air outlet width, so that the fresh air is delivered to a wider area.

[0238] In some embodiments, Figure 11 As shown, on the exhaust fan 7, the total thickness of the exhaust wheel 71 and the exhaust blades 72 in the axial direction is h2. Figure 12 As shown, the total axial thickness of the fresh air wheel 61 and the fresh air blades 62 on the fresh air fan 6 is h1, for example, h2

[0239] In some embodiments, Figure 10 ​As shown, the total thickness of the stator part 51, the rotor part 52 and the motor housing 53 in the axial direction is h3. The exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71 and extend along the axial direction of the exhaust wheel disc 71. The total thickness of the exhaust wheel disc 71 and the exhaust blades 72 in the axial direction is h2. It satisfies h3 > h2. It can be understood that the second motor 5 needs to drive the fresh air fan 6 and the exhaust fan 7 simultaneously. Although the exhaust air volume is designed to be small, the fresh air volume is designed to be large. Therefore, the total thickness of the stator part 51, the rotor part 52 and the motor housing 53 in the axial direction is set to be greater than the axial thickness of the main part of the exhaust fan 7 to ensure that the second motor 5 can support the rotation of the two fans and improve the sufficient supporting force of the second motor 5.

[0240] For example, the exhaust fan 7 may include a protrusion 74 provided on the exhaust wheel disc 71. The center of the protrusion 74 is located on the axis of the exhaust fan 7, and the protrusion 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 protrusion 74 close to the second motor 5, and at least a part of the stator part 51 and at least a part of the rotor part 52 are received in the receiving groove V07.

[0241] In some embodiments, the total thickness of the stator part 51, the rotor part 52 and the motor housing 53 in the axial direction is h3, and the total thickness of the fresh air wheel disc 61 and the fresh air blades 62 on the fresh air fan 6 in the axial direction is h1, where h1 > h3. This also ensures a large fresh air volume, and the second motor 5 does not need to occupy too much duct space.

[0242] 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 in a direction away from the fresh air fan 6.

[0243] Referring to Figure 5 and Figure 15 , the fresh air volute 8 includes: a first volute 81 and a second volute 82. The first volute 81 is located on the side of the exhaust volute 9 facing the heat exchange fan 41, and the first volute 81 is detachably connected to the exhaust volute 9. The second volute 82 is located on the side of the first volute 81 facing the heat exchange fan 41, and the second volute 82 is detachably connected to the first volute 81. The first volute 81 is located between the exhaust volute 9 and the second volute 82.

[0244] Referring to Figure 14 , the first volute 81 includes a first volute end plate 811 and a first volute shroud 812. The first volute shroud 812 is formed by extending along the edge of the first volute end plate 811 towards the heat exchange fan 41.

[0245] For example, a central portion region of the first volute end plate 811 forms a recessed portion 813 facing the fresh air fan 6, and a perforated portion 814 is provided at the center of the recessed portion 813. At least a part of the convex portion 74 is located within the recessed portion 813, and the output shaft 532 is connected to the fresh air fan 6 through the perforated portion 814.

[0246] In some embodiments of the present disclosure, the fresh air volute 8 is axially divided into at least a first volute 81 and a second volute 82 for separate processing, which can reduce the manufacturing and assembly difficulties. Moreover, for such a complex housing, it is convenient to perform quality control after separate manufacturing. The first volute 81 is detachably connected to the exhaust volute 9, and the second volute 82 is detachably connected to the first volute 81, which is convenient for assembly and subsequent adjustment and maintenance.

[0247] A convex 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 convex portion 74 to accommodate the second motor 5, and the convex 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 within the convex portion 74, occupying more of the exhaust air duct V02 and less of the fresh air duct V01, which matches the design where the fresh air volume is greater than the exhaust air volume. Only the output shaft 532 passes through the first volute end plate 811, which helps with sealing, reduces the chance of fresh air and exhaust air flowing into each other, and reduces air flow disturbance.

[0248] In some embodiments, in order to make the wall-mounted air conditioner 10000 more 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 easily loosened, but also each air duct can be designed to be shorter, the size of the casing 1 is reduced, thereby reducing the overall weight of the main body 1000 and making it visually thinner and lighter.

[0249] When controlling the size of the main body 1000, the key is how to reduce the structural size of the two-way ventilation component. Among the two-way ventilation components, it is necessary to first ensure that the second motor 5 can output sufficient power to meet the requirements of the exhaust air volume and the fresh air volume. Therefore, the thickness dimension of the second motor 5, especially the total thickness h3 of the stator portion 51, the rotor portion 52 and the motor housing 53 in the axial direction needs to be large enough, and the total thickness h3 of the stator portion 51, the rotor portion 52 and the motor housing 53 in the axial direction is greater than the axial thickness h2 of the main body portion of the exhaust fan 7.

[0250] After the second motor 5 occupies a certain thickness, in order to avoid excessive expansion of the structural dimensions of the two-way ventilation component, when optimizing the exhaust fan 7, a protrusion 74 is set in the center of the exhaust wheel 71, and the protrusion 74 extends relative to the exhaust wheel 71 in the direction of the fresh air fan 6, so that the protrusion 74 is close to the side of the second motor 5 to form a receiving groove V07 for the second motor 5, at least a part of the stator part 51 and at least a part of the rotor part 52 are accommodated in the receiving groove V07, and the central part area of the first volute end plate 811 of the first volute 81 forms a recessed part 813 facing the fresh air fan 6, so that at least a part of the protrusion 74 is located in the recessed part 813.

[0251] Such a configuration is also beneficial to reducing the distance between the main part of the second motor 5 and the fresh air fan 6, thereby helping to reduce the axial distance between the fresh air fan 6 and the main part of the second motor 5, and reducing the bending moment generated by the fresh air fan 6 on the output shaft 532. When the second motor 5 moves, the fresh air fan 6 and the exhaust fan 7 have a high coaxiality and are not easy to shake, which can avoid wear and vibration caused by friction with the volute.

[0252] In some embodiments, reference Figure 8 The exhaust volute 9 and the fresh air volute 8 are connected, and 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. This arrangement eliminates the need for a gap between the exhaust volute 9 and the fresh air volute 8, further reduces the axial size of the two-way ventilation assembly, reduces the occupied space in the wall-mounted air conditioner 10000, and is conducive to the overall lightweight design of the wall-mounted air conditioner 10000.

[0253] For example, the first volute end plate 811 is a single-layer plate, which simplifies the structure and helps to reduce the overall axial size.

[0254] In some embodiments, reference Figure 8 , Figure 11 and Figure 14 The exhaust fan 7 includes: an exhaust wheel 71 and exhaust blades 72. The exhaust wheel 71 is coaxially arranged with the second motor 5 and connected to the motor housing 53 of the second motor 5. There are multiple exhaust blades 72, and the exhaust blades 72 are arranged on the exhaust wheel 71. The exhaust blades 72 are only extended in the direction away from the fresh air fan 6. The multiple exhaust blades 72 are arranged on the exhaust wheel 71 along the circumference of the exhaust wheel 71. For example, the exhaust fan 7 includes a single-layer centrifugal blade, so that the exhaust fan 7 has a simple structure and low cost when a small air volume is satisfied. Moreover, the blade cylinder formed by the exhaust blades 72 arranged along the circumference of the exhaust wheel 71 is open on the side facing the axial air inlet end, which is convenient for air intake, reduces air suction resistance, and ensures the air intake of the exhaust.

[0255] In some embodiments, referenceFigure 8 , Figure 12 and Figure 14 , the fresh air fan 6 includes: a fresh air impeller 61 and fresh air blades 62. The fresh air impeller 61 is coaxially arranged with the second motor 5 and connected to the output shaft 532 of the second motor 5. The fresh air blades 62 include first fresh air blades 621, and the first fresh air blades 621 extend from the fresh air impeller 61 in a direction away from the exhaust fan 7. The blade cylinder formed after the first fresh air blades 621 are arranged circumferentially is open on one side facing the axial air inlet end, facilitating air intake, reducing the air intake resistance, and ensuring the fresh air intake volume.

[0256] For example, referring to Figure 8 , Figure 12 and Figure 14 , the fresh air blades 62 may include second fresh air blades 622, and the second fresh air blades 622 extend from the fresh air impeller 61 in a direction close to the exhaust fan 7. In this way, the fresh air fan 6 includes double-layer centrifugal blades. Thus, in the case of meeting the large air volume requirement, the double-layer centrifugal blade structure design helps to increase the overall structural strength of the centrifugal fan.

[0257] In some embodiments, in the axial direction of the fresh air fan 6, the length h12 of the second fresh air blades 622 is less than the length h11 of the first fresh air blades 621. Here, the first fresh air blades 621 face the axial air inlet end. Therefore, the axial length of the first fresh air blades 621 is larger, which is beneficial to obtaining a larger fresh air intake volume by using the first fresh air blades 621. And by using the shorter second fresh air blades 622, it is beneficial to achieve the complement of fresh air intake. Moreover, the first fresh air blades 621 on the windward side are longer, which is beneficial to reducing noise while ensuring the fresh air volume.

[0258] In some embodiments, a disk hole 612 is formed on the fresh air impeller 61. One side of the second fresh air blades 622 can suck air through the disk hole 612, and the distance from the disk hole 612 to the center of the fresh air impeller 61 is less than the distance from the fresh air blades 62 to the center of the fresh air impeller 61.

[0259] For example, the disk hole 612 is closer to the center of the fresh air impeller 61 than the fresh air blades 62. In this way, when the second fresh air blades 622 suck air from the disk hole 612, it is beneficial to guide the air flow to be sucked axially into the space where the second fresh air blades 622 are located, reducing the turbulent flow generated by competing for air with the first fresh air blades 621.

[0260] In some embodiments, referring to Figure 5 , Figure 8 and Figure 15, the second volute 82 includes: a second volute half 821 and a blower cover 822. The second volute half 821 is located on the side of the first volute 81 facing the heat exchange fan 41 and is detachably connected to the first volute 81. An axial ventilation opening 8211 is provided at the radial center of the second volute half 821. A volute chamber V011 is formed between the second volute half 821 and the first volute 81. The fresh air fan 6 is located in the volute chamber V011, and the axial air inlet end of the fresh air fan 6 is arranged facing the axial ventilation opening 8211. The second volute half 821 and the first volute 81 jointly define a fresh air outlet 802.

[0261] The blower cover 822 is located on the side of the second volute half 821 facing the heat exchange fan 41, and the blower cover 822 is detachably connected to the second volute half 821. Refer to Figure 8 , the cavity enclosed by the blower cover 822 and the second volute half 821 is a fresh air chamber V012, and the blower cover 822 and the second volute half 821 define a fresh air inlet 801.

[0262] After being arranged like this, a fresh air chamber V012 is formed at the air inlet end of the fresh air fan 6. The formed fresh air chamber V012 can cover the axial air inlet end of the fresh air fan 6, and the fresh air chamber 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 chamber V012, thereby improving the air suction efficiency of the fresh air fan 6 and reducing the air suction loss.

[0263] For example, the blower cover 822 is located on the side of the second volute half 821 facing the indoor heat exchanger 2, so that the volute chamber V011 can be separated from the indoor heat exchanger 2. When the indoor heat exchanger 2 cools down, the indoor heat exchanger 2 can absorb the heat in the fresh air chamber V012, reducing the temperature of the fresh air. Due to the separation effect of the blower cover 822, the distance between the indoor heat exchanger 2 and the volute chamber V011 is far, and the ability of the cold generated by the indoor heat exchanger 2 to reduce the air temperature in the volute chamber V011 decreases, and the air in the volute chamber V011 is not likely to be supercooled to produce condensed water.

[0264] In this way, even if the inhaled fresh air is cooled down, it will not be supercooled to produce condensed water. Moreover, in the case where condensed water is generated in the fresh air chamber V012, the condensed water is likely to remain in the fresh air chamber V012 and is not likely to enter the volute chamber V011 and then be blown into the room, avoiding the situation of water blowing in the fresh air device. When the indoor heat exchanger 2 heats up, the indoor heat exchanger 2 can absorb the cold in the fresh air chamber V012, increasing the temperature of the fresh air. Subsequently, the heated air enters the volute chamber V011 and is fully mixed, making the hot air blown out from the fresh air device milder.

[0265] In some embodiments, refer to Figure 3 , the wall-mounted air conditioner 10000 may include: a purification member 11, refer to Figure 8, the purification component 11 is arranged in the fresh air duct V01 to purify the fresh air blown into the room and improve the cleanliness of the indoor air.

[0266] For example, the purification component 11 is installed in the fresh air cavity V012. For example, the purification component 11 is located at the axial air inlet end of the fresh air fan 6. When the fresh air fan 6 rotates, outdoor air can enter the fresh air volute 8 from the fresh air inlet 801, and the outdoor air entering the fresh air volute 8 can be blown through the purification component 11 and then enter the room from the fresh air outlet 802.

[0267] In this way, the fresh air flow can almost vertically pass through the purification component 11, the fresh air inlet consumption can be further reduced, and thus the fresh air volume can be increased. Moreover, when the indoor heat exchanger 2 is in the refrigeration state and condensed water is generated in the fresh air, the condensed water can stay on the purification component 11 when the air flows through the purification component 11, further avoiding the situation of water blowing when the fresh air device blows air.

[0268] In some embodiments, the purification component 11 is connected to the second volute 82, which is convenient for the assembly of the purification component 11 and does not interfere with the fresh air fan 6.

[0269] For example, as Figure 15 shown, the purification component 11 includes a filter net 111, and the filter net 111 covers the axial ventilation opening 8211. The filter net 111 covers the entire air inlet end of the fresh air fan 6. The filter net 111 has a large coverage area, a large filtering area, and a good filtering effect. The setting of the filter net 111 helps to ensure sufficient contact area with the flowing air, and has a light weight and low air passing noise. For example, 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.

[0270] For example, the filter net 111 is plate-shaped, so that the overall filter net 111 is relatively thin and will not occupy too large a size when placed in the two-way ventilation component.

[0271] For example, the filter net 111 is square, which is convenient for positioning and installation of the filter net 111.

[0272] In some embodiments, the filter net 111 is a square net, and the side length of the filter net 111 is greater than the diameter of the axial ventilation opening 8211. The square net is convenient for positioning during fixation, is not easy to shake after fixation, and is easy to process with less processing waste. Making the side length of the filter net 111 greater than the diameter of the axial ventilation opening 8211 enables all the fresh air flowing into the axial ventilation opening 8211 to flow through the filter net 111, resulting in a high filtering cleanliness.

[0273] In some embodiments, referring to Figure 8, a part of the fresh air cavity V012 forms an empty cavity V0121. The cavity V0121 is located on the side of the purification member 11 away from the fresh air fan 6, and the fresh air inlet 801 communicates with the cavity V0121.

[0274] For example, the purification member 11 is arranged at a position close to the fresh air fan 6 in the fresh air cavity V012. The part of the fresh air cavity V012 away from the fresh air fan 6 is the cavity V0121, that is, the cavity V0121 is between the oncoming wind of the purification member 11 and the inner surface of the fan housing 822. In this way, when the fresh air fan 6 operates, the cavity V0121 is in a negative pressure state, enabling the air flow to automatically flow into the cavity V0121 from the fresh air inlet 801, reducing the air flow resistance.

[0275] The cavity V0121 is equivalent to the air inlet negative pressure cavity of the fresh air fan 6. The setting of the air inlet negative pressure cavity has many advantages:

[0276] First, improve the air inlet efficiency. For example, by setting the negative pressure cavity, the buffer space on the air suction side of the fresh air fan 6 is increased, making it easier for the fresh air fan 6 to suck air, thereby increasing the air inlet volume of the fresh air fan 6. Moreover, due to the existence of the negative pressure cavity, the fresh air is buffered and adjusted in the negative pressure cavity before entering the fresh air fan 6, reducing the fluctuations and turbulences of the fresh air flow, which is beneficial to improving the air inlet stability of the fresh air fan 6. If there is no cavity V0121 and no buffer space, the flow resistance will increase, and the operating power consumption of the fresh air fan 6 will rise.

[0277] Second, optimize the air flow distribution. For example, through the buffering and guiding of the negative pressure cavity, it is beneficial to guide the air flow to be sucked into the fresh air fan 6 along the axis.

[0278] Third, reduce the air flow impact and absorb noise.

[0279] In this way, while increasing the air inlet volume of the fresh air device, it is beneficial to the overall air inlet reliability and stability.

[0280] In some embodiments, the fan housing 822 forms a positioning convex bulge 8221 on the side facing the indoor heat exchanger 2. The base 3 is provided with an end plate 31 adjacent to the fan housing 822, and a positioning notch 311 is formed on the end plate 31. The positioning convex bulge 8221 and the positioning notch 311 cooperate. For example, as Figure 6 shown, in the side of the fan housing 822 facing the indoor heat exchanger 2, the part where the positioning convex bulge 8221 is located is the first positioning surface F1, and the part without the positioning convex bulge 8221 is the second positioning surface F2. After the positioning convex bulge 8221 and the positioning notch 311 cooperate, the end plate 31 is located between the first positioning surface F1 and the second positioning surface F2.

[0281] In this way, the cooperation between the positioning convex hull 8221 and the positioning notch 311 forms the positioning of the two-way ventilation component, and can also bring the fresh air volute 8 closer to the indoor heat exchanger 2. The structure of the positioning notch 311 is not limited. For example, Figure 18 In the illustrated example, the positioning notch 311 is provided to penetrate in the thickness direction of the end plate 31. The positioning notch 311 is equivalent to a notch on the end plate 31. After the positioning convex hull 8221 and the positioning notch 311 cooperate, the positioning convex hull 8221 fills the notch on the end plate 31. Another example is that the positioning notch 311 is a groove on the side of the end plate 31 facing the fresh air volute 8, and the groove does not penetrate. At this time, the positioning convex hull 8221 is equivalent to filling the groove.

[0282] After the fresh air volute 8 and the indoor heat exchanger 2 are brought closer, the cold or heat of the indoor heat exchanger 2 can be absorbed by the fresh air in the fresh air volute 8, so that the blown fresh air is closer to room temperature and more gentle.

[0283] After the fresh air volute 8 and the indoor heat exchanger 2 are brought closer, in some solutions, at least part of the positioning convex hull 8221 can overlap with at least part of the indoor heat exchanger 2 in the horizontal direction. This can reduce the overall horizontal size and prevent the wall-mounted air conditioner 10000 from being too long.

[0284] For example, at least part of the cavity V0121 is located inside the positioning convex hull 8221, so that the positioning convex hull 8221 can be thinned, the weight can be reduced, and the utilization rate of the internal space of the positioning convex hull 8221 can be improved.

[0285] In some embodiments, an installation opening 803 is further provided on the fresh air volute 8, and the purification member 11 is detachably assembled in the installation opening 803. This facilitates the disassembly of the purification member 11 when the purification member 11 is damaged or saturated, facilitating maintenance or replacement.

[0286] For example, as Figure 15 shown, the installation opening 803 is formed between the blower cover 822 and the second volute half 821. The purification member 11 is detachably assembled in the fresh air cavity V012 through the installation opening 803. In this way, the size of the installation opening 803 can be set larger, facilitating the installation of a larger-sized purification member 11. When the size of the installation opening 803 is large, the installation opening 803 is formed by surrounding between the blower cover 822 and the second volute half 821. The blower cover 822 and the second volute half 821 respectively form open half-ports, which is convenient for processing or demolding and has a low molding rejection rate.

[0287] For example, as Figure 3As shown, in the front-to-back direction of the main body, the installation opening 803 is located at the front side of the main body 1000, and the purification element 11 can be free from interference from the pipes connected to the fresh air inlet 801 and the exhaust air outlet 902 when being disassembled, so that the operation is convenient during disassembly. For example, a panel (not shown) that can be opened and closed is provided on the front side of the housing 1, and when the panel is opened or the panel is rotated upward, the installation opening 803 can be exposed, which facilitates the disassembly of the purification element 11.

[0288] It is also possible that in some solutions, the installation opening 803 is set at the bottom of the main body 1000.

[0289] In some embodiments, Figure 6 As shown, a purified air inlet 804 for connecting to the room is formed on the fresh air volute 8, and the fresh air fan 6 rotates to allow indoor air to enter the fresh air volute 8 from the purified air inlet 804 to be purified by the purification element 11, and allows the indoor air entering the fresh air volute 8 to enter the room from the fresh air outlet 802. In this way, the indoor air can enter the fresh air duct V01 from the purified air inlet 804, be purified, and then enter the room from the fresh air outlet 802.

[0290] This arrangement can realize the circulation of indoor air when the indoor air is polluted, and purify it during the circulation. In this way, the indoor air can be purified without introducing outdoor fresh air, improving the cleanliness. Since no outdoor fresh air is introduced, the indoor air will not suddenly blow into the unheated cold or hot air from the outside during the indoor air purification, avoiding the discomfort caused by the sudden change of indoor temperature.

[0291] For example, the accommodating cavity V1 in the housing 1 forms two mutually non-ventilated first and second cavities V11 and V12 through the internal structure coordination. Figure 2 shown.

[0292] like Figure 4 In some embodiments shown, an end plate 31 is provided on the base 3 near the fresh air volute 8, and the fresh air volute 8 and the end plate 31 cooperate to form a wind-proof structure, so that ventilation is not allowed on both sides. The heat exchange fan 41 and the indoor heat exchanger 2 are located on one side of the wind-proof structure, and the exhaust volute 9 with the exhaust air inlet 901 is located on the other side of the wind-proof structure. In this way, air with condensed water can be blocked from entering the exhaust air inlet 901.

[0293] In some embodiments, a casing air inlet 103 is provided on the casing 1 corresponding to the exhaust volute 9, and the exhaust fan 7 rotates to allow indoor air to enter the accommodating chamber V1 from the casing air inlet 103, and then enter the exhaust volute 9 from the exhaust air inlet 901. In this way, when exhausting, even if the heat exchange fan 41 is in a turned-off state, it is not easy for the exhaust fan 7 to absorb condensed water from the indoor heat exchanger 2 when sucking air from the accommodating chamber V1.

[0294] Here, the settings of the first chamber V11 and the second chamber V12 can also be directly formed by the housing 1 in other embodiments. For example, a partition is integrally formed within the housing 1 to divide the accommodation chamber V1 into the first chamber V11 and the second chamber V12.

[0295] At this time, at least a part of the second motor 5, the exhaust fan 7, and the exhaust volute 9 are located within the second chamber V12. A housing air inlet 103 corresponding to the second chamber V12 is provided on the housing 1, and the purification air inlet 804 is located within the second chamber V12. For example, the purification air inlet 804 and the exhaust air inlet 901 are located on the same side of the air separation structure. When the fresh air fan 6 rotates, indoor air can enter the second chamber V12 from the housing air inlet 103, and then enter the fresh air volute 8 from the purification air inlet 804 to be purified by the purification member 11, and the indoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802. In this way, the purification air inlet 804 can be hidden within the second chamber V12, improving the aesthetic appearance of the wall-mounted air conditioner 10000. Moreover, there is no need to connect a physical pipeline between the purification air inlet 804 and the housing air inlet 103, reducing the number of parts, the occupied volume, and facilitating the layout. For example, as Figure 6 shown, the purification air inlet 804 is located at the bottom of the fresh air volute 8 and is arranged with the direction facing downwards. It can be understood that the fresh air inlet 801 is located below the main body 1000, and both the fresh air inlet 801 and the purification air inlet 804 are located at the bottom of the fresh air volute 8 and extend in the downward direction, 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, which is convenient for centrally arranging switches to select one of the air inlets to be opened, reducing the number of switches.

[0296] In some embodiments, 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 purification air inlet 804 being too close to the exhaust air inlet 901. Moreover, the different directions of the purification air inlet 804 and the exhaust air inlet 901 help to expand the negative pressure area, helping a large amount of indoor air to flow into the negative pressure area and ensuring the exhaust air volume and indoor fresh air volume.

[0297] In some embodiments, as Figure 6 shown, the wall-mounted air conditioner 10000 may include: a first switching valve 12 for switching the switches of the fresh air inlet 801 and the purification air inlet 804. In this way, the fresh air inlet 801 and the purification air inlet 804 can be selectively opened and closed. The specific structure of the first switching valve 12 is not limited here.

[0298] In some embodiments, such as Figure 16 As shown, an indoor air outlet 903 for communicating with the interior is formed on the exhaust volute 9. When the exhaust fan 7 rotates, the indoor air entering the exhaust volute 9 can be discharged from the indoor air outlet 903 to the interior. For example, the exhaust device can also be configured for the internal circulation of indoor air, promoting the circulation of indoor air without sending the indoor air outdoors.

[0299] For example, as Figure 16 As shown, the wall-mounted air conditioner 10000 may include: a second switching valve 15 for switching the exhaust air outlet 902 and the indoor air outlet 903. In this way, the exhaust air outlet 902 and the indoor air outlet 903 can be selectively opened and closed. The specific structure of the second switching valve 15 is not limited here.

[0300] In some embodiments, such as Figure 5 and Figure 8 As shown, the exhaust volute 9 includes a wind guide ring 91, and the area surrounded by the wind guide ring 91 forms an exhaust air inlet 901. The setting of the wind guide 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 intake smoother and more efficient, and increasing the air intake volume of the exhaust fan 7.

[0301] Moreover, after the shape and angle of the wind guide 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 guide ring 91 can play a role in stabilizing the air flow, reducing the turbulence and fluctuations of the air flow, enabling the exhaust fan 7 to operate more smoothly. It can reduce noise and vibration and extend the service life of the exhaust fan 7.

[0302] For example, the wind guide ring 91 is in the shape of a circular tube and is easy to process.

[0303] For example, the diameter of the wind guide ring 91 decreases in the direction towards the heat exchange exhaust fan 7. As the diameter of the wind guide ring 91 decreases, the channel for the air flow to pass through the wind guide ring 91 becomes narrower. According to the principle of fluid mechanics, at the same flow rate, the narrowing of the channel will increase the air flow speed, thereby increasing the wind speed and air volume. The wind guide ring 91 with a decreasing diameter is also beneficial for concentrating the relatively dispersed air volume upstream, making the air flow blow directly at the center of the exhaust fan 7. When the concentrated air flow is radially driven by the exhaust blades 72, it is more labor-saving, and the concentrated air flow is also beneficial for the stability of the air flow.

[0304] For example, as Figure 8As 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, and the exhaust blades 72 are connected to one side of the exhaust wheel disc 71 away from the heat exchange fan 41. A plurality of exhaust blades 72 are arranged circumferentially along the exhaust wheel disc 71.

[0305] As Figure 8 and Figure 11 shown, the edge of the exhaust blade 72 away from the exhaust wheel disc 71 is the blade side edge 721, and at least part of the blade side edge 721 is a tapered section 7212. In the direction radially inward of the exhaust fan 7, the distance between the tapered section 7212 and the exhaust wheel disc 71 decreases, and all the exhaust blades 72 form a side edge depression 723 at the tapered section 7212. The end of the air guide ring 91 is located within the side edge depression 723.

[0306] For example, the exhaust blade 72 of the exhaust fan 7 is a concave blade, and both the air guide ring 91 and the concave blade are recessed toward the fresh air fan 6. The air guide ring 91 partially enters the side edge depression 723 formed by the concave blade. With such a setting, the air guide ring 91 and the exhaust fan 7 can have partial overlap in the axial direction, and it is not necessary to increase the axial dimension of the exhaust volute 9 on the premise of providing the air guide ring 91.

[0307] Moreover, after the exhaust fan 7 rotates, the surface swept by the exhaust blade 72 at the tapered section 7212 forms a funnel surface with a decreasing diameter, which is beneficial for the airflow to concentrate toward the center and reduces the energy loss caused by airflow disturbance.

[0308] In some embodiments, as Figure 17 shown, the blade side edge 721 may include: a straight section 7211, the straight section 7211 is perpendicular to the axis of the exhaust fan 7, and the straight section 7211 is connected to one end of the tapered section 7212 away from the axis of the exhaust fan 7. For example, the axial dimension of the exhaust blade 72 in the part near the outer edge is large, which can make full use of the space in the exhaust air duct V02 to drive the airflow, and is beneficial for the airflow to obtain greater kinetic energy.

[0309] For example, the tapered section 7212 and the straight section 7211 are connected by an arc transition, and the tapered section 7212 and the surface of the exhaust wheel disc 71 are connected by an arc transition. In this way, at the connection between the tapered section 7212 and the straight section 7211, and between the tapered section 7212 and the surface of the exhaust wheel disc 71, stress concentration is reduced, and the risk of fracture is reduced. Moreover, the tapered section 7212 and the surface of the exhaust wheel disc 71 are connected by an arc transition, and the end of the air guide ring 91 can be directly opposite to this place, reducing the risk of scratching.

[0310] In some embodiments, the revolving surfaces of the blade side edges 721 of all exhaust blades 72 overlap, and the revolving surface is the surface swept by the blade side edges 721 around the axis of the exhaust fan 7. In this way, when the airflow flows axially toward the center of the exhaust fan 7, excessive radial turbulence will not be generated due to the sweeping of individual exhaust blades 72 with inconsistent shapes, thereby improving the stability of the airflow.

[0311] For example, Figure 17 As shown, in the direction away from the axis of the exhaust fan 7, the axial spacing between the air guide ring 91 and the gradient section 7212 increases. It is understandable that when the second motor 5 rotates to drive the exhaust fan 7 to rotate, the exhaust fan 7 will inevitably produce a small swing due to wear. When the exhaust fan 7 swings, the farther away from the axis of the exhaust fan 7, the greater the swing amplitude. Therefore, increasing the axial spacing between the air guide ring 91 and the gradient section 7212 in the direction away from the axis of the exhaust fan 7 is beneficial to reduce the risk of friction caused by the exhaust fan 7 contacting the air guide ring 91 during the swing.

[0312] In some embodiments, Figure 17 As shown, the axial dimension of the air guide ring 91 is Z1, which satisfies 2mm≤Z1≤12mm. It can be understood that when the axial dimension Z1 of the air guide ring 91 is less than 2mm, the flow path is too short when gathering, and the airflow enters the exhaust fan 7 before it is gathered. The gathering effect of the airflow is not obvious, and the airflow is easy to disperse. The exhaust fan 7 needs to consume more energy to introduce the dispersed airflow into the center. When the axial dimension Z1 of the air guide ring 91 is greater than 12mm, the air guide ring 91 occupies too much axial space in the exhaust volute 9, resulting in less space available to the exhaust fan 7, resulting in a reduction in the exhaust air volume. Therefore, the axial dimension Z1 of the air guide ring 91 is limited to between 2mm and 12mm, so that the air guide ring 91 gathers the airflow while ensuring that the exhaust fan 7 reaches a sufficient exhaust air volume, so as to achieve a larger exhaust air volume with lower power consumption.

[0313] For example, the axial dimension Z1 of the air guide ring 91 may be 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 12 mm, etc.

[0314] In some embodiments, Figure 17 As shown, the axial distance between the end of the air guide ring 91 and the exhaust blade 72 is Z2, which satisfies 1mm≤Z2≤5mm.

[0315] When the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 is less than 1mm, the exhaust blade 72 is easy to hit the air guide ring 91 during rotation, which not only generates friction loss, but also the unbalanced force on the exhaust fan 7 after the collision may cause greater shaking and lead to more serious collision. When the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 is greater than 5mm, not only is the axial gap from the end of the air guide ring 91 to the exhaust blade 72 more wasteful, but also the ungathered part of the incoming air is easy to flow into the exhaust duct V02 from the axial gap from the end of the air guide ring 91 to the exhaust blade 72. In this way, the airflow that does not do work will occupy the flow path of the airflow that does work, reducing the operating efficiency of the exhaust fan 7.

[0316] Therefore, limiting the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 to between 1 mm and 5 mm is beneficial to ensuring the operating reliability of the exhaust fan 7 while ensuring the operating efficiency of the exhaust fan 7. For example, the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 can be 1 mm, 2.5 mm, 3 mm, 3.5 mm, 5 mm, etc.

[0317] In some embodiments, Figure 17 As shown, the wall-mounted air conditioner 10000 may include: a fixing bracket 17, the fixing bracket 17 is located at the exhaust air inlet 901 and connected to the exhaust volute 9, and the second motor 5 is mounted on the fixing bracket 17. In this way, the fixed position of the second motor 5 is small in axial distance from the fresh air fan 6 and the exhaust fan 7, and the bending moment borne on the second motor 5 during operation is small, which is conducive to improving the rotation stability of the fresh air fan 6 and the exhaust fan 7.

[0318] For example, Figure 17 As shown, the fixed bracket 17 includes a bracket end plate 171 and a bracket enclosure 172, the bracket enclosure 172 is formed by extending along the edge of the bracket end plate 171 toward the exhaust fan 7, the bracket enclosure 172 is connected to the exhaust volute 9, and a mounting cavity 174 is defined between the bracket enclosure 172 and the bracket end plate 171, and a part of the second motor 5 is accommodated in the mounting cavity 174. For example, the fixed bracket 17 provides the mounting cavity 174 with a simple structure, which not only increases the support area for the second motor 5, that is, the bracket end plate 171 and the bracket enclosure 172 can support the second motor 5, and improve the installation firmness of the second motor 5, but also the mounting cavity 174 can protect the electronic connector at the end of the second motor 5.

[0319] For example, Figure 17As shown, a wire passing hole 173 is provided on the support end plate 171. The wire passing hole 173 is assembled and connected to the wire harness of the second motor 5, and the connection point of the wire harness and the second motor 5 is located within the installation cavity 174. In this way, when introducing the wire harness connected to the second motor 5 from the outside, the wire harness can be directly introduced from the side of the fixed bracket 17 away from the exhaust fan 7. Compared with the solution of leading the wire from other sides of the fixed bracket 17, the solution provided by some embodiments of the present disclosure is conducive to reducing the length of the wire harness and avoiding the situation that the wire harness is too long and easily caught by the exhaust fan 7. Moreover, the connection point of the wire harness and the second motor 5 is hidden within the installation cavity 174, which is not only aesthetically pleasing but also improves the reliability of this connection point and avoids the situation of poor contact caused by the connection point being touched by external objects.

[0320] In some embodiments, referring to Figure 5 , the wall-mounted air conditioner 10000 may include: an insulating sleeve 18, which is sleeved on the wire harness and connected at the wire passing hole 173. The setting of the insulating sleeve 18 provides buffer protection for the wire harness when it is connected to the wire passing hole 173, avoiding the situation of wire harness abrasion and resulting in electric leakage when this place is impacted. Moreover, to a certain extent, the insulating sleeve 18 can seal the wire passing hole 173, reduce the entry of condensed water and moisture into the installation cavity 174, and reduce the risk of moisture and damage to the electronic connectors at the end of the second motor 5.

[0321] For example, the projection of the fixed bracket 17 along the axial direction of the exhaust fan 7 is located within the projection of the exhaust volute 9 along the axial direction of the exhaust fan 7.

[0322] As Figure 8 shows, the leftmost end of the fixed bracket 17 in the axial direction is p1, and the rightmost end is p2. The leftmost end of the exhaust volute 9 in the axial direction is q1, and the rightmost end is q2. Among the vertical projection points of these four positions on the axis of the exhaust fan 7, the projection point of q1 coincides with the projection point of p1, or the projection point of q1 is located to the left of the projection point of p1. The projection point of q2 coincides with the projection point of p2, or the projection point of q2 is located to the right of the projection point of p2.

[0323] With such a setting, the fixed bracket 17 does not extend beyond the exhaust volute 9 in the axial direction, and the setting of the fixed bracket 17 will not cause an additional increase in the axial dimension, which is conducive to reducing the overall axial dimension.

[0324] In some embodiments, at least one of the fresh air fan 6 and the exhaust fan 7 includes: a wheel disc and blades connected to the wheel disc, and a transition fillet structure is provided at the connection between the blades and the wheel disc.

[0325] For example, the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72. The exhaust blades 72 are connected to one side of the exhaust wheel disc 71 away from the heat exchange fan 41. There are multiple exhaust blades 72 arranged circumferentially. A transition fillet structure is provided at the connection between the exhaust blades 72 and the exhaust wheel disc 71. This can reduce the concentrated stress at the connection between the exhaust blades 72 and the exhaust wheel disc 71 and improve the overall strength. Additionally, when the air flow flows axially towards the exhaust wheel disc 71, the air flow can be guided by the transition fillet structure under the drive of the pressure difference. There is less turbulence when the air flow turns, which is beneficial for reducing energy consumption.

[0326] For example, the fresh air fan 6 includes a fresh air wheel disc 61 and fresh air blades 62. The fresh air blades 62 are connected to the fresh air wheel disc 61. There are multiple fresh air blades 62 arranged circumferentially. A transition fillet structure is provided at the connection between the fresh air blades 62 and the fresh air wheel disc 61. This can reduce the concentrated stress at the connection between the fresh air blades 62 and the fresh air wheel disc 61 and improve the overall strength. Additionally, when the air flow flows axially towards the fresh air wheel disc 61, the air flow can be guided by the transition fillet structure under the drive of the pressure difference and flow more smoothly towards the fresh air blades 62, which is beneficial for reducing energy consumption.

[0327] In some embodiments, the accommodation cavity V1 in the housing 1 forms two non-ventilated first chambers V11 and second chambers V12 through internal structure cooperation, as Figure 2 shown by the dashed line box in the figure. The indoor heat exchanger 2 and the heat exchange fan 41 are located in the first chamber V11, and at least part of the two-way ventilation component is arranged in the second chamber V12. The heat exchange air inlet 101 and the heat exchange air outlet 102 on the housing 1 are correspondingly arranged for the first chamber V11. An air inlet 103 for the housing can be provided on the housing 1, which communicates with the second chamber V12. An air outlet 105 for the housing can also be provided on the housing 1, which communicates with the second chamber V12.

[0328] For example, an air inlet 103 for the housing corresponding to the second chamber V12 is provided on the housing 1. When the exhaust fan 7 rotates, indoor air can enter the second chamber V12 from the air inlet 103 for the housing and then enter the exhaust volute 9 from the exhaust air inlet 901.

[0329] With this arrangement, the internal air flow in the second chamber V12 will not be affected by the drive of the heat exchange fan 41. The exhaust air inlet 901 can directly intake air from the second chamber V12. There is no need for a connecting pipe between the air inlet 103 for the housing and the exhaust air inlet 901, which not only reduces the space occupied by the pipe body, but also the position of the air inlet 103 for the housing can be flexibly selected.

[0330] In some embodiments of the present disclosure, a vertically arranged partition plate can be provided in the housing 1 to separate the first chamber V11 and the second chamber V12, or the first chamber V11 and the second chamber V12 can be separated by the fresh air volute 8 or the base 3, or the cooperation of both.

[0331] In some embodiments, such as Figure 6 and Figure 4 、 Figure 19 shown, on one side of the fresh air volute 8 facing the indoor heat exchanger 2, a positioning convex hull 8221 is formed. On the base 3, there is an end plate 31 adjacent to the fresh air volute 8, and a positioning notch 311 is formed on the end plate 31. The positioning convex hull 8221 and the positioning notch 311 cooperate. The positioning notch 311 runs through the end plate 31 along the length direction of the main body 1000. After the positioning convex hull 8221 and the positioning notch 311 cooperate, the positioning convex hull 8221 fills the notch on the end plate 31, thereby dividing the accommodation cavity V1 into a first chamber V11 and a second chamber V12, which is convenient for separating the air inlet and outlet on both sides of the end plate 31 without mutual interference.

[0332] In some embodiments, such as Figure 19 shown, the wall-mounted air conditioner 10000 may include: a bearing seat 20 provided on the base 3, and the bearing seat 20 is supported and connected to one end of the heat exchange fan 41. The positioning convex hull 8221 and the bearing seat 20 partially overlap in the length direction of the main body 1000. For example, the setting of the positioning convex hull 8221 utilizes the radial outer space of the bearing seat 20, improving the structural compactness, which can reduce the overall lateral dimension and prevent the wall-mounted air conditioner 10000 from being too long.

[0333] Moreover, the distance between the fresh air volute 8 and the indoor heat exchanger 2 can be reduced, and the cold or heat of the indoor heat exchanger 2 can be absorbed by the fresh air in the fresh air volute 8, so that the blown fresh air is closer to room temperature and more gentle.

[0334] For example, as Figure 6 and Figure 14 shown, an avoidance notch 82211 is formed at the lower rear corner of the positioning convex hull 8221, the bearing seat 20 extends into the avoidance notch 82211, and the lower front corner of the positioning convex hull 8221 is located in front of the bearing seat 20. In this way, the position of the heat exchange fan 41 is relatively close to the rear side. After there is enough space in front of the heat exchange fan 41, it is convenient for the volute tongue air duct V03 to form a diffuser air duct for the heat exchange fan 41 to increase the air supply range of the heat exchange fan 41. On this basis, the positioning convex hull 8221 is partially located in front of the bearing seat 20, filling the front space of the bearing seat 20 and improving the space utilization rate.

[0335] Moreover, in the conventional wall-mounted air conditioner 10000, the indoor heat exchanger 2 is a two-fold or three-fold heat exchanger. Part of the indoor heat exchanger 2 is arranged above the heat exchange fan 41, and part of the indoor heat exchanger 2 is arranged in front of the heat exchange fan 41. At this time, the shape of the positioning convex hull 8221 is adapted to the shape of the indoor heat exchanger 2, so that the positioning convex hull 8221 can more fully absorb the cold or heat of the indoor heat exchanger 2 and improve the heat exchange efficiency.

[0336] In some embodiments, such as Figure 18 shown, the base 3 includes: a first pedestal 301 and a second pedestal 302 arranged in sequence along the length direction of the main body 1000, and an end plate 31 is located between the first pedestal 301 and the second pedestal 302. A volute tongue air duct V03 is formed on the first pedestal 301, the indoor heat exchanger 2 and the heat exchange fan 41 are installed on the first pedestal 301, and the fresh air volute 8 and the exhaust air volute 9 are installed on the second pedestal 302. For example, the two-way air exchange assembly is also installed on the base 3, and the above structures are supported by the base 3, with strong integrity, which helps to avoid excessive vibration caused by loose parts.

[0337] For example, as Figure 5 and Figure 6 shown, at least one of the front ends of the fresh air volute 8 and the exhaust air volute 9 is provided with a first hanging ear 806, and at least one of the rear ends of the fresh air volute 8 and the exhaust air volute 9 is provided with a second hanging ear 807. The first hanging ear 806 and the second hanging ear 807 are respectively hung on the second pedestal 302, and the first hanging ear 806 and the second hanging ear 807 are detachably connected to the second pedestal 302. For example, when placing the fresh air volute 8 and the exhaust air volute 9 on the second pedestal 302, then hanging the first hanging ear 806 and the second hanging ear 807 on the front end and the rear end of the second pedestal 302 respectively, and then fixing the first hanging ear 806 and the second hanging ear 807 on the second pedestal 302 with installation bolts. With such a setting, not only is the assembly easy, but even if the bolts are loose, the fresh air volute 8 and the exhaust air volute 9 are supported by the first hanging ear 806 and the second hanging ear 807 and will not fall.

[0338] For example, the first hanging ear 806 and the second hanging ear 807 are respectively provided with installation holes for connecting the second pedestal 302, and there is an included angle between the axes of the installation holes on the first hanging ear 806 and the second hanging ear 807. In this way, the contact surface between the first hanging ear 806 and the second pedestal 302 and the contact surface between the second hanging ear 807 and the second pedestal 302 have an included angle, realizing double-sided limit, not easy to loosen, and with higher positioning accuracy.

[0339] For example, as Figure 18 shown, the bottom of the second pedestal 302 is provided with a mating port 3021, and the lower ends of the fresh air volute 8 and the exhaust air volute 9 are located at the mating port 3021. The mating port 3021 can be used to set the pipeline connecting the fresh air volute 8 and the exhaust air volute 9. This can not only greatly reduce the weight of the second pedestal 302, but also utilize the lower parts of the fresh air volute 8 and the exhaust air volute 9 surrounded by the second pedestal 302 to improve the anti-impact and anti-vibration capabilities.

[0340] In some embodiments, the air inlet 103 of the cabinet 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 cabinet located on the top wall of the main body 1000 is not easily visible to people's sight, thus maintaining the aesthetic appearance of the main body 1000.

[0341] In some embodiments, the wall-mounted air conditioner 10000 may include an electric control box 13. The electric control box 13 is located at the lateral end of the heat exchange fan 41, and the two-way ventilation component is located at the other lateral end of the heat exchange fan 41. For example, the two-way ventilation component and the electric control box 13 are located at the lateral two ends of the heat exchange fan 41, and the operation of the two-way ventilation component has less interference with the electric control box 13.

[0342] In some embodiments, the wall-mounted air conditioner 10000 may include an electric control box 13. The electric control box 13 and the two-way ventilation component are located at the same lateral end of the heat exchange fan 41, and the electric control box 13 is located on top of the two-way ventilation component. With such an arrangement, it is further beneficial to control the length of the wall-mounted air conditioner 10000.

[0343] It should be noted that any one of the technical solutions disclosed in the present disclosure can, to a certain extent, solve one or more of the above technical problems and achieve a certain disclosure purpose; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above technical problems and achieve a certain disclosure purpose; it is also possible to select some technical disclosures to form an overall solution, and at the same time adopt related technologies and deteriorated solutions, but the deteriorated trend can be compensated by the means of the present technical disclosure, and overall, one or more of the above technical problems can be solved to a certain extent and a certain disclosure purpose can be achieved; each technical disclosure combined into a complete technical solution constitutes an organic and inseparable overall solution, which solves the technical problems and achieves a certain disclosure purpose as a whole.

[0344] Any one of the technical disclosures in the present disclosure, as well as the recombination of multiple technical disclosures, can form a complete technical solution, and can solve one or more of the above multiple technical problems, achieving the disclosure purpose, all of which belong to the content of the present disclosure and belong to the content directly and unambiguously determined according to the content of the present disclosure.

[0345] Those skilled in the art will understand that the disclosure scope of the present disclosure is not limited to the above-mentioned some embodiments, and certain elements of the embodiments can be modified and replaced without departing from the spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.

Claims

1. A wall-mounted air conditioner (10000), comprising: A main body (1000), the main body (1000) comprising: A housing (1), an accommodation cavity (V1) is formed inside the housing (1), a heat exchange air inlet (101) and a heat exchange air outlet (102) are formed on the housing (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), disposed in the accommodation cavity (V1); A base (3), disposed in the accommodation cavity (V1), on which a volute tongue air duct (V03) is formed; A heat exchange fan (41), disposed in the volute tongue air duct (V03) and located on a side of the indoor heat exchanger (2) away from the heat exchange air inlet (101); A first motor (42), disposed in the accommodation cavity (V1) and located at one end in the length direction of the main body (1000), for driving the heat exchange fan (41) to rotate so that air exchanges heat between the inside of the air conditioner and the indoor space; It is characterized in that it further comprises: A second motor (5), disposed in the accommodation cavity (V1), and the second motor (5) is located at the other end in the length direction of the main body (1000), the second motor (5) is an outer rotor motor, and the second motor (5) comprises: A stator part (51), on which a wound coil is provided; A rotor part (52), in the radial direction of the stator part (51), the rotor part (52) is disposed around the outside of the stator part (51); A motor housing (53), the motor housing (53) is fixedly connected to the rotor part (52); An output shaft (532), the output shaft (532) is fixedly connected to the motor housing (53); 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 a 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); 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 a side of the fresh air fan (6) facing the second motor (5), the exhaust fan (7) is sleeved on the radial outside of the motor housing (53), and the exhaust fan (7) is fixedly connected to the motor housing (53); Wherein, the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously in the working state; A fresh air volute (8), a fresh air duct (V01) is formed inside the fresh air volute (8), the fresh air fan (6) is installed in the fresh air volute (8), and a fresh air inlet (801) and a fresh air outlet (802) are formed on the fresh air volute (8); Rotation of the fresh air fan (6) allows outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and allows the outdoor air entering the fresh air volute (8) to enter the room from the fresh air outlet (802); Wherein, in the height direction of the main body (1000), the fresh air inlet (801) is located below the main body (1000); An exhaust volute (9) is located on one side of the fresh air volute (8) facing the second motor (5). An exhaust air duct (V02) is formed 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); Rotation of the exhaust fan (7) allows indoor air to enter the exhaust volute (9) from the exhaust air inlet (901), and allows the indoor air entering the exhaust volute (9) to be discharged to the outside from the exhaust air outlet (902); Wherein, in the height direction of the main body (1000), the exhaust air outlet (902) is located below the main body (1000).

2. The wall-mounted air conditioner (10000) according to claim 1, wherein The exhaust fan (7) forms a receiving groove (V07) at the radial center. At least a part of the stator part (51), at least a part of the rotor part (52), and at least a part of the motor housing (53) of the second motor (5) are accommodated in the receiving groove (V07).

3. The wall-mounted air conditioner (10000) according to claim 1, wherein, The fresh air outlet (802) is located directly in front of the main body (1000).

4. The wall-mounted air conditioner (10000) according to claim 1, wherein The fresh air outlet (802) is located at the top of the main body (1000).

5. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, 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.

6. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The exhaust air inlet (901) is formed on the exhaust volute (9), and the axial direction of the exhaust air inlet (901) is arranged along the length direction of the main body (1000).

7. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, An air inlet (103) of the housing (1) is provided at one end 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 communication air duct (V04) is formed between the air inlet (103) of the housing and the exhaust air inlet (901). Rotation of the exhaust fan (7) drives indoor air to enter the first communication air duct (V04) from the air inlet (103) of the housing, and allows the indoor air to enter the exhaust volute (9) through the exhaust air inlet (901).

8. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, An air inlet (103) of the housing (1) is provided at one end 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). Rotation of the exhaust fan (7) drives indoor air to enter the interior of the housing (1) from the air inlet (103) of the housing, and allows the indoor air to enter the exhaust volute (9) through the exhaust air inlet (901).

9. The wall-mounted air conditioner (10000) according to any one of claims 1-7, characterized in that The fresh air fan (6) includes: a fresh air wheel disc (61) and fresh air blades (62), the fresh air blades (62) are located at the outer edge of the fresh air wheel disc (61), and the fresh air blades (62) extend along the axial direction of the fresh air wheel disc (61), and the total thickness of the fresh air wheel disc (61) and the fresh air blades (62) in the axial direction is h1; The exhaust fan (7) includes an exhaust wheel disc (71) and exhaust blades (72), the exhaust blades (72) are located at the outer edge of the exhaust wheel disc (71), and the exhaust blades (72) extend along the axial direction of the exhaust wheel disc (71), and the total thickness of the exhaust wheel disc (71) and the exhaust blades (72) in the axial direction is h2; Wherein, h2 < h1.

10. The wall-mounted air conditioner (10000) according to any one of claims 1-7, characterized in that, The total thickness of the stator part (51), the rotor part (52) and the motor housing (53) in the axial direction is h3; The exhaust fan (7) includes an exhaust wheel disc (71) and exhaust blades (72), the exhaust blades (72) are located at the outer edge of the exhaust wheel disc (71), and the exhaust blades (72) extend along the axial direction of the exhaust wheel disc (71), and the total thickness of the exhaust wheel disc (71) and the exhaust blades (72) in the axial direction is h2; Satisfy, h3 > h2.

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

12. The wall-mounted air conditioner (10000) according to claim 11, characterized in that, The fresh air volute (8) includes: A first volute (81), 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); A second volute (82), 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).

13. The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The first volute (81) includes a first volute end plate (811) and a first volute enclosing plate (812), and the first volute enclosing plate (812) extends along the edge of the first volute end plate (811) towards the heat exchange fan (41); Wherein, a central part area of the first volute end plate (811) forms a recessed part (813) facing the inside of the fresh air fan (6); At least a part of the protruding part (74) is located inside the recessed part (813).

14. The wall-mounted air conditioner (10000) according to claim 13, wherein, A perforated part (814) is provided at the center of the recessed part (813), and the output shaft (532) is connected to the fresh air fan (6) through the perforated part (814).

15. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The total thickness of the stator part (51), the rotor part (52) and the motor housing (53) in the axial direction is h3; The fresh air fan (6) includes: a fresh air wheel disc (61) and fresh air blades (62). The fresh air blades (62) are located at the outer edge of the fresh air wheel disc (61), and the fresh air blades (62) extend along the axial direction of the fresh air wheel disc (61). The total thickness of the fresh air wheel disc (61) and the fresh air blades (62) in the axial direction is h1, and h1 > h3.

16. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The area of the outer circular curved surface of the fresh air fan (6) is S1, and the area of the outer circular curved surface of the exhaust air fan (7) is S2. S1 = ΠD1×h1, where D1 is the outer diameter of the fresh air fan (6), and h1 is the total thickness of the fresh air wheel disc (61) and the fresh air blades (62) of the fresh air fan (6) in the axial direction; S2 = ΠD2×h2, where D2 is the outer diameter of the exhaust air fan (7), and h2 is the total thickness of the exhaust air wheel disc (71) and the exhaust air blades (72) of the exhaust air fan (7) in the axial direction; It satisfies that S1 > S2.

17. The wall-mounted air conditioner (10000) according to claim 1, wherein, The exhaust air fan (7) includes: An exhaust air wheel disc (71), 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); Exhaust air blades (72), there are multiple exhaust air blades (72). The exhaust air blades (72) are arranged on the exhaust air wheel disc (71), and the exhaust air blades (72) 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).

18. The wall-mounted air conditioner (10000) according to claim 1, wherein The fresh air fan (6) includes: A fresh air wheel disc (61), the fresh air wheel disc (61) is coaxially arranged with the second motor (5) and is connected to the output shaft (532) of the second motor (5); Fresh air blades (62), including a first fresh air blade (621), the first fresh air blade (621) extends from the fresh air wheel disc (61) in a direction away from the exhaust air fan (7).

19. The wall-mounted air conditioner (10000) according to claim 18, characterized in that, The fresh air blades (62) may include a second fresh air blade (622), and the second fresh air blade (622) extends from the fresh air wheel disc (61) in a direction close to the exhaust air fan (7).

20. The wall-mounted air conditioner (10000) according to claim 19, characterized in that, 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).

21. The wall-mounted air conditioner (10000) according to claim 19, wherein, A wheel disc hole (612) is formed on the fresh air wheel disc (61), and 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).

22. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The air inlet direction of the fresh air inlet (801) is arranged upward.

23. The wall-mounted air conditioner (10000) according to claim 12, wherein, The second volute (82) comprises: A second volute half (821), wherein the second volute half (821) is located on a 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), an axial vent (8211) is provided at the radial center of the second volute half (821), 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), the axial air inlet end of the fresh air fan (6) is arranged toward the axial vent (8211), 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, wherein The second volute (82) comprises: a fan cover (822), the fan cover (822) is located on the side of the second volute half (821) facing the heat exchange fan (41), 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, wherein, It may include: a purification component (11), the purification component (11) being installed in the fresh air chamber (V012), the purification component (11) being connected to the second volute (82), the rotation of the fresh air fan (6) allowing outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and allowing the outdoor air entering the fresh air volute (8) to blow through the purification component (11) and then enter the room from the fresh air outlet (802).

26. The wall-mounted air conditioner (10000) according to claim 25, wherein The purification element (11) comprises a filter screen (111), and the filter screen (111) is covered on the axial ventilation opening (8211).

27. The wall-mounted air conditioner (10000) according to claim 26, wherein, The filter screen (111) is a square screen, and the side length of the filter screen (111) is greater than the diameter of the axial ventilation opening (8211).

28. The wall-mounted air conditioner (10000) according to claim 25, characterized in that, A portion of the fresh air cavity (V012) constitutes an empty cavity (V0121), and the cavity (V0121) is located on a side of the purification component (11) away from the fresh air fan (6), and the fresh air inlet (801) is connected to the cavity (V0121).

29. The wall-mounted air conditioner (10000) according to claim 24, wherein, The fan cover (822) forms a positioning convex bump (8221) on a side facing the indoor heat exchanger (2); The base (3) is provided with an end plate (31) adjacent to the fan cover (822), and a positioning notch (311) is formed on the end plate (31). The positioning convex bump (8221) cooperates with the positioning notch (311) to bring the fresh air volute (8) and the indoor heat exchanger (2) closer.

30. The wall-mounted air conditioner (10000) according to claim 25, characterized in that, An installation opening (803) is defined between the blower housing (822) and the second volute half (821), and the purification member (11) is detachably assembled in the fresh air chamber (V012) through the installation opening (803).

31. The wall-mounted air conditioner (10000) according to claim 25, wherein, A purification air inlet (804) for communicating with the room 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 member (11), and the indoor air entering the fresh air volute (8) can enter the room from the fresh air outlet (802). The purification air inlet (804) is located at the bottom of the fresh air volute (8) and is oriented downward.

32. The wall-mounted air conditioner (10000) according to claim 1, wherein, The exhaust volute (9) includes a wind guide ring (91), and the diameter of the wind guide ring (91) decreases in the direction towards the heat exchange fan (41). The area surrounded by the wind guide ring (91) forms the exhaust air inlet (901).

33. The wall-mounted air conditioner (10000) according to claim 32, characterized in that, The exhaust fan (7) includes: an exhaust wheel disc (71) and exhaust blades (72). The exhaust wheel disc (71) is connected to the motor housing (53) of the second motor (5). The exhaust blades (72) are connected to the side of the exhaust wheel disc (71) away from the heat exchange fan (41). The exhaust blades (72) are multiple and arranged circumferentially. The edge of the exhaust blade (72) away from the exhaust wheel disc (71) is the blade side edge (721). At least part of the blade side edge (721) is a tapered section (7212). In the radially inward direction of the exhaust fan (7), the distance between the tapered section (7212) and the exhaust wheel disc (71) decreases, and all the exhaust blades (72) form a side edge depression (723) at the tapered section (7212). The end of the wind guide ring (91) is located within the side edge depression (723).

34. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, At least one of the fresh air fan (6) and the exhaust fan (7) includes: a wheel disc and blades connected to the wheel disc, and a transition fillet structure is provided at the connection between the blades and the wheel disc.

35. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, An indoor exhaust air outlet (903) for communicating with the room is formed on the exhaust volute (9). When the exhaust fan (7) rotates, indoor air entering the exhaust volute (9) can be discharged to the room from the indoor exhaust air outlet (903).

36. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, A part of the output shaft (532) is located inside the stator part (51), and the output shaft (532) is rotatably connected to the stator part (51).

37. A wall-mounted air conditioner (10000), comprising: A main body (1000), and the main body (1000) includes: A housing (1), an accommodation chamber (V1) is formed inside the housing (1). A heat exchange air inlet (101) and a heat exchange air outlet (102) are formed on the housing (1). 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), which is arranged in the accommodation chamber (V1). The base (3) is disposed within the accommodation cavity (V1), and a volute tongue air duct (V03) is formed thereon; The heat exchange fan (41) is disposed within the volute tongue air duct (V03) and is located on the side of the indoor heat exchanger (2) away from the heat exchange air inlet (101); The first motor (42) is disposed within the accommodation cavity (V1) and is located at one end of the main body (1000) in the length direction, and is used to drive the heat exchange fan (41) to rotate so that air circulates between the interior of the air conditioner and the indoor space; It is characterized in that it may include: The second motor (5) is disposed within the accommodation cavity (V1), and the second motor (5) is located at the other end of the main body (1000) in the length direction. The second motor (5) is an outer rotor motor, and the second motor (5) includes: A stator portion (51) having a wound coil thereon; A rotor portion (52) disposed around the outside of the stator portion (51) in the radial direction of the stator portion (51); A motor housing (53) fixedly connected to the rotor portion (52); An output shaft (532) fixedly connected to the motor housing (53); A fresh air fan (6), the fresh air fan (6) being 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); An exhaust fan (7), the exhaust fan (7) being a centrifugal fan with axial air inlet and radial air outlet. In the length direction of the main body (1000), the exhaust fan (7) is located on the side of the fresh air fan (6) facing the second motor (5). The exhaust fan (7) is sleeved on the radial outside of the motor housing (53), and the exhaust fan (7) is fixedly connected to the motor housing (53); Wherein, the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously in the working state; A fresh air volute (8) in which a fresh air duct (V01) is formed. The fresh air fan (6) is installed within 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) enables outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and enables the outdoor air entering the fresh air volute (8) to enter the room from the fresh air outlet (802); The exhaust air volute (9) is located on the side of the fresh air volute (8) facing the second motor (5). An exhaust air duct (V02) is formed inside the exhaust air volute (9). The exhaust air fan (7) is installed inside the exhaust air volute (9). An exhaust air inlet (901) and an exhaust air outlet (902) are formed on the exhaust air volute (9). When the exhaust air fan (7) rotates, indoor air can enter the exhaust air volute (9) from the exhaust air inlet (901), and the indoor air entering the exhaust air volute (9) can be discharged to the outside from the exhaust air outlet (902). Wherein, the exhaust air fan (7) includes an exhaust air wheel disc (71) and exhaust air blades (72). The exhaust air blades (72) are located at the outer edge of the exhaust air wheel disc (71), and the exhaust air blades (72) extend along the axial direction of the exhaust air wheel disc (71) in a direction away from the fresh air fan (6). Wherein, the exhaust air fan (7) may include a convex portion (74) provided on the exhaust air wheel disc (71). The center of the convex portion (74) is located on the axis of the exhaust air fan (7), and the convex portion (74) extends in a direction towards the fresh air fan (6) relative to the exhaust air 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). At least a part of the stator portion (51) and at least a part of the rotor portion (52) are received in the receiving groove (V07).

38. The wall-mounted air conditioner (10000) according to claim 37, characterized in that, The fresh air volute (8) includes: A first volute (81), the first volute (81) is located on the side of the exhaust air volute (9) facing the heat exchange fan (41), and the first volute (81) is detachably connected to the exhaust air volute (9). A second volute (82), the second volute (82) is located on the side of the first volute (81) facing the heat exchange fan (41), and the second volute (82) is detachably connected to the first volute (81). The first volute (81) is located between the exhaust air volute (9) and the second volute (82).

39. The wall-mounted air conditioner (10000) according to claim 38, wherein, The first volute (81) includes a first volute end plate (811) and a first volute surrounding plate (812). The first volute surrounding plate (812) extends along the edge of the first volute end plate (811) towards the heat exchange fan (41). Wherein, a recessed portion (813) facing the inside of the fresh air fan (6) is formed in the central partial 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 convex 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).

40. The wall-mounted air conditioner (10000) according to claim 37, characterized in that, The total thickness in the axial direction of the stator portion (51), the rotor portion (52) and the motor housing (53) is h3; The exhaust fan (7) includes an exhaust wheel disc (71) and exhaust blades (72). The exhaust blades (72) are located at the outer edge of the exhaust wheel disc (71), and the exhaust blades (72) extend along the axial direction of the exhaust wheel disc (71). The total thickness of the exhaust wheel disc (71) and the exhaust blades (72) in the axial direction is h2; Satisfying h3 > h2.

41. The wall-mounted air conditioner (10000) according to claim 37, characterized in that, The fresh air fan (6) includes: a fresh air wheel disc (61) and fresh air blades (62). The fresh air blades (62) are located at the outer edge of the fresh air wheel disc (61), and the fresh air blades (62) extend along the axial direction of the fresh air wheel disc (61). The total thickness of the fresh air wheel disc (61) and the fresh air blades (62) in the axial direction is h1; The exhaust fan (7) includes an exhaust wheel disc (71) and exhaust blades (72). The exhaust blades (72) are located at the outer edge of the exhaust wheel disc (71), and the exhaust blades (72) extend along the axial direction of the exhaust wheel disc (71). The total thickness of the exhaust wheel disc (71) and the exhaust blades (72) in the axial direction is h2; Wherein, h2 < h1.

42. The wall-mounted air conditioner (10000) according to claim 37, characterized in that, The volute tongue of the fresh air volute (8) and the volute tongue of the exhaust volute (9) are arranged out of phase in the circumferential direction of the second motor (5).

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