Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a main body, and the main body comprises a machine shell, a base, a heat exchange fan and a first motor connected with the heat exchange fan. The wall-mounted air conditioner further comprises a second motor, a fresh air fan, an exhaust fan, a fresh air volute and an exhaust volute, and the first motor and the second motor are located at the two ends of the heat exchange fan in the length direction. The 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 between the exhaust fan and the heat exchange fan, the fresh air fan is arranged on the radial outer side of the motor shell in a sleeving mode, and the exhaust fan is fixedly connected with an output shaft of the second motor. 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. And the fresh air fan and the exhaust fan share the same motor, so that the overall size can be reduced, and the cost is saved.

Description

Technical Field

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

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

[0003] An air conditioner consists of an indoor unit and an outdoor unit, installed indoors and outdoors, respectively, connected by corresponding pipes and wires. To improve indoor air quality, air conditioners typically also include a fresh air device and an exhaust device for ventilation. In the prior art, each of these devices required a separate motor, resulting in a bulky overall structure and increased costs. Summary of the Invention

[0004] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes a wall-mounted air conditioner that can simultaneously exhaust and draw air into the room, with the fresh air fan and the exhaust fan sharing the same motor, thereby reducing the overall size and saving costs.

[0005] According to some embodiments, a wall-mounted air conditioner includes a main body. The main body includes a casing having an interior formed with a housing cavity and a heat exchange air inlet and a heat exchange air outlet; a base disposed within the housing cavity and having a volute-tongue air duct formed thereon; a heat exchange fan disposed within the volute-tongue air duct, configured to draw indoor air into the volute-tongue air duct through the heat exchange air inlet and blow air in the volute-tongue air duct into the room through the heat exchange air outlet when rotating; and a first motor disposed within the housing cavity and located at one end of the heat exchange fan in a longitudinal direction, configured to drive the heat exchange fan to rotate, thereby exchanging heat between the air inside the air conditioner and the indoor space.

[0006] The wall-mounted air conditioner also includes: a second motor, which is arranged in the accommodating cavity, and the second motor is located at the other end of the length direction of the heat exchange fan, the second motor is an outer rotor motor, and the second motor includes: a stator part, the stator part has a wound coil; 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, the motor housing is fixedly connected to the rotor part; and an output shaft, the output shaft is fixedly connected to the motor housing.

[0007] The wall-mounted air conditioner further comprises: a fresh air fan, which is a centrifugal fan with axial air intake and radial air discharge, and is sleeved on the radial outer side of the motor housing, and is fixedly connected to the motor housing.

[0008] The wall-mounted air conditioner further includes an exhaust fan, which is a centrifugal fan with axial air intake and radial air discharge, and is fixedly connected to the output shaft of the second motor.

[0009] The fresh air fan is located between the exhaust fan and the heat exchange fan, and the second motor drives the fresh air fan and the exhaust fan to rotate synchronously when in operation. The fresh air fan and the exhaust fan share the same motor, which can reduce the overall size and save costs.

[0010] The wall-mounted air conditioner also includes: a fresh air volute, a fresh air duct is formed in 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 allow outdoor air to enter the fresh air volute from the fresh air inlet, and can allow outdoor air entering the fresh air volute to enter the room from the fresh air outlet.

[0011] The wall-mounted air conditioner also includes: an exhaust volute, an exhaust duct is formed in the exhaust volute, the exhaust fan is installed in the exhaust volute, and an exhaust air inlet and an exhaust air outlet are formed on the exhaust volute; the rotation of the exhaust fan can allow indoor air to enter the exhaust volute from the exhaust air inlet, and can allow the indoor air entering the exhaust volute to be discharged to the outside through the exhaust air outlet.

[0012] The stator part, the rotor part and the motor housing are located in the fresh air volute, one end of the output shaft extends into the fresh air volute, and the other end of the output shaft extends into the exhaust air volute.

[0013] The second motor, the fresh air fan, the exhaust fan, the fresh air volute, and the exhaust volute constitute a two-way ventilation assembly. By employing an outer rotor motor for the second motor, with the fresh air fan sheathed radially outwardly of the motor housing, with a portion of the motor housing embedded within the fresh air fan and a portion of the output shaft embedded within the exhaust fan, the second motor nearly overlaps with the exhaust fan and the fresh air fan in the length direction of the heat exchange fan, minimizing the axial extent of the exhaust fan and the fresh air fan outside the second motor. This allows the overall axial dimensions of the two-way ventilation assembly to approximate those of the second motor, thereby making the main body length dimension controllable.

[0014] The main part of the second motor is located in the fresh air fan, rather than the exhaust fan, which can make more air flow space for the exhaust duct, increase the exhaust air volume, and facilitate exhaust to the outdoors, thereby improving exhaust efficiency. Since the second motor adopts an outer rotor motor that can adapt to low-speed, high-torque, direct drive and other scenarios, there is no need to set up a reducer, and the fresh air fan can be directly mounted on the radial outer side of the motor housing. This not only avoids the reducer from increasing the overall axial size, but also avoids the reducer from increasing the difficulty of structural layout. By simply fixing the fresh air fan to the motor housing and connecting the exhaust fan to the output shaft of the second motor, the exhaust fan and the fresh air fan can be coaxially stacked, allowing the two to rotate synchronously and maintain a small gap, without the need for excessive spacing.

[0015] In some embodiments, a volute cavity, a fresh air cavity, and an axial vent are formed in the fresh air volute. The volute cavity is located between the fresh air cavity and the exhaust volute. The volute cavity and the fresh air cavity are connected through the axial vent. The stator portion, the rotor portion, and the motor housing are installed in the volute cavity. Outdoor air first enters the fresh air cavity. After being buffered in the fresh air cavity, the outdoor air enters the volute cavity through the axial vent and reaches the second motor. This prevents the outdoor air entering the fresh air volute from the fresh air inlet from directly impacting the second motor. The provision of the fresh air cavity helps reduce abnormal noise from the second motor.

[0016] The wall-mounted air conditioner further includes a purification component, which is installed in the fresh air cavity and is connected to the fresh air volute. The rotation of the fresh air fan allows outdoor air to enter the fresh air cavity from the fresh air inlet, and allows the outdoor air entering the fresh air cavity to blow through the purification component, then enter the volute cavity from the axial vent, and then enter the room from the fresh air outlet. Thus, in the air flow path, the second motor is fixed on the downstream side of the purification component. After the outdoor air entering the fresh air cavity from the fresh air inlet passes through the purification component, dust is filtered by the purification component. Then, this part of the air enters the volute cavity through the axial vent and reaches the second motor. The setting of the purification component improves the working environment of the second motor. The purification component can prevent dust from entering the second motor, so that the second motor will not be stuck due to dust, which is conducive to reducing the probability of failure of the second motor and extending the service life of the second motor.

[0017] In the related art, the rotor, stator, and motor housing of the second motor are arranged in the exhaust volute. When the indoor air enters the exhaust duct from the exhaust air inlet, it may carry a lot of moisture and blow directly to the second motor. The condensed water in the indoor air will directly corrode the second motor, resulting in a reduction in the service life of the second motor. In the present application, the rotor, stator, and motor housing of the second motor are arranged in the fresh air volute, and the second motor is fixed on the downstream side of the purification component on the air circulation path. In this way, after the outdoor air entering the fresh air cavity from the fresh air inlet passes through the purification component, the condensed water carried by the outdoor air can remain on the purification component, thereby ensuring that the air reaching the second motor is relatively dry. The purification component can prevent moisture from entering the second motor.

[0018] In some embodiments, the fresh air volute includes a first volute, the first volute is located on a side of the exhaust volute facing the heat exchange fan, and the first volute is detachably connected to the exhaust volute.

[0019] In some embodiments, the fresh air volute includes a second volute, which is located on the 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, and the purification component is connected to the second volute, which facilitates the assembly of the purification component and does not interfere with the fresh air fan.

[0020] Separating the fresh air volute into at least a first volute and a second volute along the axial direction and processing them separately can reduce the difficulty of manufacturing and assembly. Moreover, the quality control of such a complex housing can be facilitated after separate manufacturing. The first volute is detachably connected to the exhaust volute, and the second volute is detachably connected to the first volute, which facilitates assembly, subsequent adjustment, and maintenance.

[0021] In some embodiments, the second volute includes a second volute half, the second volute half is located on the side of the first volute away from the exhaust fan, and the second volute half is detachably connected to the first volute, the axial vent is provided on the second volute half, the volute cavity is formed between the second volute half and the first volute, and the fresh air fan is located in the volute cavity.

[0022] In some embodiments, the exhaust volute includes an exhaust volute end plate, the exhaust volute end plate being located on a side of the exhaust fan facing away from the heat exchange fan, and the exhaust air inlet being provided on the exhaust volute end plate. The exhaust volute end plate can protect the side of the exhaust fan facing away from the heat exchange fan, and the exhaust air inlet allows indoor air to enter the interior of the exhaust volute.

[0023] In some embodiments, the exhaust volute includes an exhaust volute enclosure, which extends along the edge of the exhaust volute end plate toward the heat exchange fan. The exhaust volute enclosure surrounds the radially outer side of the exhaust fan and is detachably connected to the first volute. The exhaust volute enclosure can protect the radially outer side of the exhaust fan. When the exhaust volute enclosure is disassembled from the first volute, the exhaust fan can be easily installed. After the exhaust fan is installed on the output shaft of the second motor, the exhaust volute enclosure is connected to the first volute so that the exhaust volute protects the exhaust fan.

[0024] In some embodiments, the exhaust volute further includes a bypass duct adapted to be connected to at least one of the exhaust volute end plate and the exhaust volute enclosure, one end of the bypass duct being in communication with the exhaust duct, and the other end of the bypass duct being in communication with the fresh air inlet. When the exhaust fan rotates, indoor air is drawn into the exhaust duct through the exhaust inlet, and the air in the exhaust duct can be discharged to the fresh air inlet through the bypass duct. When the fresh air fan rotates, the air at the fresh air inlet can enter the fresh air duct, and the air in the fresh air duct can further enter the room through the fresh air outlet, thereby reusing the air inside the exhaust volute and recycling the indoor air.

[0025] In some embodiments, a side inlet is formed on the second volute half, and the side inlet is connected to the fresh air inlet through the side inlet. When the exhaust fan rotates, air in the exhaust duct can be discharged to the side inlet through the side inlet. The side inlet is connected to the fresh air inlet, so that the air in the exhaust duct can be discharged to the fresh air inlet through the side inlet and the side inlet.

[0026] In some embodiments, the fresh air volute is formed with a purified air inlet for communicating with the room. When the purified air inlet is opened and the fresh air fan is rotated, indoor air can enter the fresh air volute from the purified air inlet, and indoor air entering the fresh air volute can enter the room from the fresh air outlet. The purified air inlet is connected to the fresh air cavity. When the purified air inlet is opened and the fresh air fan is rotated, indoor air can enter the fresh air cavity from the purified air inlet, and indoor air entering the fresh air cavity can enter the room from the fresh air outlet.

[0027] In some embodiments, the purified air inlet and the fresh air inlet are spaced apart in a direction perpendicular to the axis of the second motor, the air inlet direction of the purified air inlet is consistent with that of the fresh air inlet, and the fresh air valve is suitable for translating in a direction perpendicular to the axis of the second motor to open or close the purified air inlet.

[0028] In some embodiments, the fresh air fan has a fresh air receiving slot formed in the radial center thereof, and at least a portion of the stator portion, at least a portion of the rotor portion, and at least a portion of the motor housing of the second motor are accommodated within the fresh air receiving slot. Thus, the stator portion, rotor portion, and motor housing can be placed in the center of the fresh air fan without obstructing the flow of exhaust air. This fully utilizes the hub space of the fresh air fan, reduces the external space occupied by the second motor, and reduces the overall axial dimension of the assembled second motor and fresh air fan.

[0029] In some embodiments, the fresh air fan includes a fresh air wheel, which is coaxially arranged with the second motor and connected to the motor housing of the second motor. When the motor housing rotates, the fresh air wheel is driven to rotate synchronously, thereby realizing the rotation of the fresh air fan.

[0030] In some embodiments, the fresh air fan includes fresh air blades, which are located at the outer edge of the fresh air wheel and extend along the axial direction of the fresh air wheel.

[0031] In some embodiments, the fresh air fan includes a fresh air protrusion provided on the fresh air wheel, and the fresh air protrusion extends relative to the fresh air wheel in a direction away from the heat exchange fan, so that the fresh air receiving groove is formed on the side of the fresh air protrusion facing the heat exchange fan.

[0032] At least a portion of the stator, at least a portion of the rotor, and at least a portion of the motor housing are housed in the fresh air receiving slot, thereby facilitating the rational utilization of the space within the fresh air fan and reducing the overall axial dimension of the assembled second motor and fresh air fan, thereby reducing the axial dimension of the bidirectional ventilation assembly. This arrangement also facilitates reducing the distance between the main body of the second motor and the exhaust fan, thereby facilitating reducing the axial distance between the exhaust fan and the main body of the second motor, and reducing the bending moment generated on the output shaft of the exhaust fan. When the second motor is in motion, the fresh air fan and the exhaust fan maintain a high degree of coaxiality, are less likely to shake, and can avoid wear and vibration caused by friction with the volute.

[0033] In some embodiments, the fresh air blades include: first fresh air blades extending from the fresh air wheel in a direction away from the exhaust fan. The first fresh air blades are arranged circumferentially to form a blade tube, which is open on the side facing the axial air inlet end to facilitate air intake, reduce air intake resistance, and ensure the intake volume of fresh air.

[0034] In some embodiments, the fresh air blade further includes a second fresh air blade extending from the fresh air wheel toward the exhaust fan. The fresh air fan includes double-layer centrifugal blades. This double-layer centrifugal blade structure helps increase the overall structural strength of the centrifugal fan while meeting high air volume requirements.

[0035] In some embodiments, the second fresh air blade is shorter than the first fresh air blade in the axial direction of the fresh air fan. The first fresh air blade is oriented toward the axial air inlet, so its axial length is greater, facilitating greater fresh air intake from the first fresh air blade. Using a shorter second fresh air blade facilitates supplementing the fresh air intake. Furthermore, the first fresh air blade is longer on the windward side, which helps reduce noise while ensuring fresh air volume.

[0036] In some embodiments, the fresh air fan includes a fresh air disc and fresh air blades, wherein the fresh air blades are located at the outer edge of the fresh air disc and extend axially along the fresh air disc, and the total axial thickness of the fresh air disc and the fresh air blades is h1; the exhaust fan includes an exhaust disc and exhaust blades, wherein the exhaust blades are located at the outer edge of the exhaust disc and extend axially along the exhaust disc, and the total axial thickness of the exhaust disc and the exhaust blades is h2; wherein h2 < h1. This arrangement ensures that the fresh air volume is greater than the exhaust air volume while making the axial thickness of the main part of the fresh air fan greater, thereby increasing the structural strength and being able to withstand greater torque. Since the exhaust fan requires less air volume, the smaller axial thickness of the main part can appropriately reduce the exhaust air volume and simultaneously reduce the axial size of the two-way ventilation component.

[0037] In some embodiments, the total axial thickness of the stator, rotor, and motor housing is h3; the exhaust fan includes an exhaust disc and exhaust blades, the exhaust blades being located at the outer edge of the exhaust disc and extending axially along the exhaust disc, and the total axial thickness of the exhaust disc and the exhaust blades is h2; h3>h2. The total axial thickness of the stator, rotor, and motor housing is set to be greater than the axial thickness of the main body of the exhaust fan to ensure that the second motor can support the rotation of both fans and that the second motor has sufficient support force.

[0038] In some embodiments, the total axial thickness of the stator, rotor, and motor housing is h3. The fresh air fan includes a fresh air disc and fresh air blades, the fresh air blades being located at the outer edge of the fresh air disc and extending axially along the fresh air disc. The total axial thickness of the fresh air disc and fresh air blades is h1, where h1>h3. This arrangement ensures a high fresh air volume without the second motor occupying a significant amount of air duct space. Furthermore, the second motor rationally utilizes the space within the fresh air fan, reducing the total axial dimension of the assembled second motor and fresh air fan, thereby reducing the axial dimension of the two-way ventilation assembly.

[0039] In some embodiments, the exhaust fan includes an exhaust wheel disc, which is coaxially arranged with the second motor and fixedly connected to the output shaft of the second motor.

[0040] In some embodiments, the exhaust fan includes exhaust blades, which are multiple. The exhaust blades are arranged on the exhaust disc, and the exhaust blades only extend in the direction away from the fresh air fan. The multiple exhaust blades are arranged circumferentially on the exhaust disc.

[0041] In some embodiments, the exhaust fan includes a purified air inlet formed on the fresh air volute for connecting to the room. The rotation of the fresh air fan allows indoor air to enter the fresh air cavity from the purified air inlet to be purified by the purification component, and allows the indoor air entering the fresh air cavity to enter the volute cavity from the axial vent and then enter the room from the fresh air outlet. In the air circulation path, the second motor is fixed on the downstream side of the purification component. After the indoor air entering the fresh air cavity from the purified air inlet passes through the purification component, the dust is filtered by the purification component. Then this part of the air enters the volute cavity through the axial vent and reaches the second motor. The provision of the purification component improves the working environment of the second motor, and the second motor will not be stuck due to dust, which is conducive to reducing the probability of failure of the second motor and extending the service life of the second motor.

[0042] Additional aspects and advantages of the wall-mounted air conditioner will be given in part in the description that follows and in part will be obvious from the description that follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0044] Figure 1 is a perspective view of a main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0045] Figure 2 is a front view of a main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0046] Figure 3 is a perspective view of the interior of a main body in one direction according to some embodiments;

[0047] Figure 4 is a perspective view of the interior of the main body in another direction according to some embodiments;

[0048] Figure 5 A perspective view of a two-way ventilation assembly according to some embodiments;

[0049] Figure 6 Another perspective view of a two-way ventilation assembly according to some embodiments;

[0050] Figure 7 is a front view of a two-way ventilation assembly according to some embodiments;

[0051] Figure 8 for Figure 7 Cross-sectional view along AA direction;

[0052] Figure 9 is an exploded view of a second motor according to some embodiments;

[0053] Figure 10 is a cross-sectional view of a second motor according to some embodiments;

[0054] Figure 11 is a cross-sectional view of an exhaust fan according to some embodiments;

[0055] Figure 12 is a side view of a fresh air fan according to some embodiments;

[0056] Figure 13 for Figure 12 Cross-sectional view along the BB direction;

[0057] Figure 14 An exploded view of a two-way ventilation assembly (some parts are hidden) in one direction according to some embodiments;

[0058] Figure 15 is an exploded view of a two-way ventilation assembly in another direction according to some embodiments;

[0059] Figure 16 is a perspective view of a second volute half and a fixing bracket according to some embodiments;

[0060] Figure 17 is a schematic diagram of the assembly relationship between an exhaust volute and an exhaust fan according to some embodiments;

[0061] Figure 18 is a perspective view of a base according to some embodiments;

[0062] Figure 19 is a front view of a main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0063] Figure 20 FIG. 1 is a perspective view of a housing according to some embodiments as viewed from the rear.

[0064] Reference numerals:

[0065] Wall-mounted air conditioner 10000, main body 1000, casing 1, accommodating cavity V1, heat exchange air inlet 101, heat exchange air outlet 102, casing air inlet 103, first connecting air duct V04, guide pipe avoidance port 104, casing air outlet 105,

[0066] Indoor heat exchanger 2, base 3, volute air duct V03, end plate 31, first mount 301, second mount 302, mating port 3021, heat exchange fan 41, first motor 42, second motor 5, stator 51, rotor 52, motor housing 53, output shaft 532,

[0067] Fresh air fan 6, fresh air receiving slot V08, fresh air wheel 61, wheel hole 612, fresh air blade 62, first fresh air blade 621, second fresh air blade 622, fresh air protrusion 64,

[0068] Exhaust fan 7, exhaust wheel 71, exhaust blade 72, blade side edge 721, straight section 7211, gradient section 7212, side edge recess 73,

[0069] 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, purified air inlet 804,

[0070] The first volute 81, the first volute end plate 811, the first volute enclosure 812, the perforated portion 814,

[0071] The second volute 82, the second volute half 821, the axial vent 8211, the side vent 8212, the fan cover 822, the cover plate 8222, the cover plate body 82221, the cover plate flange 82222,

[0072] Exhaust volute 9, exhaust duct V02, exhaust air inlet 901, exhaust air outlet 902, exhaust volute enclosure 906, air guide ring 91,

[0073] Purification element 11, filter screen 111, air guide grille 16, fixing bracket 17, bracket end plate 171, bracket enclosure 172, installation cavity 174,

[0074] First valve assembly 12, fresh air valve motor 121, fresh air motor body 1211, fresh air motor shaft 1212, fresh air valve 122, fresh air transmission mechanism 123, fresh air gear 1231, fresh air rack 1232,

[0075] Electric control box 13, fresh air inlet pipe 141, exhaust air outlet pipe 142,

[0076] The second valve assembly 15 , the exhaust valve motor 151 , the exhaust motor body 1511 , the exhaust motor shaft 1512 , and the exhaust valve 152 . DETAILED DESCRIPTION

[0077] The following will clearly and completely describe some embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0078] Unless the context requires otherwise, 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 to be 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" are intended to indicate that a particular feature, structure, material or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present invention. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0079] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, "plurality" means two or more.

[0080] When describing some embodiments, the word "connected" and its derivatives may be used. The term "connected" should be understood broadly. For example, "connected" can mean fixed, removable, or integrated; it can be directly connected or indirectly connected through an intermediary. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0081] “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: A only, B only, C only, 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.

[0082] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0083] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0084] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0085] Some embodiments of the present invention provide a wall-mounted air conditioner 10000 .

[0086] Typically, 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 a pipeline to transmit refrigerant. The indoor unit includes an indoor heat exchanger 2 and a heat exchange fan 41.

[0087] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan and a throttling device. The compressor, outdoor heat exchanger, throttling device and indoor heat exchanger 2 connected in sequence form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor heat exchanger and the indoor heat exchanger 2 respectively to realize the cooling mode or heating mode of the air conditioner.

[0088] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0089] The outdoor heat exchanger is configured to exchange heat between outdoor air and the refrigerant transported through the outdoor heat exchanger. For example, in the air conditioner's cooling mode, the outdoor heat exchanger operates as a condenser, causing the refrigerant compressed by the compressor to condense by dissipating heat to the outdoor air through the outdoor heat exchanger. In the air conditioner's heating mode, the outdoor heat exchanger operates as an evaporator, causing the decompressed refrigerant to absorb heat from the outdoor air through the outdoor heat exchanger and evaporate.

[0090] In some embodiments, the outdoor heat exchanger may include heat exchange fins to expand the contact area between the outdoor air and the refrigerant transmitted in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0091] The outdoor fan is configured to draw outside air into the outdoor unit and send the outside air after heat exchange with the outdoor heat exchanger to the outside. The outdoor fan provides power for the flow of the outdoor air.

[0092] A throttle element is connected between the outdoor heat exchanger and the indoor heat exchanger 2. It regulates the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger 2, thereby adjusting the refrigerant flow rate between the outdoor heat exchanger and the indoor heat exchanger 2. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger 2 will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger 2. The throttle element can be a throttle tube, an electronic valve, or the like. If the throttle element is an electronic valve, the throttle opening is adjustable to adjust the flow rate and pressure of the refrigerant flowing through the throttle element.

[0093] In some solutions, the air conditioner may include a four-way valve connected to the refrigerant circuit, and the four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner performs cooling mode or heating mode.

[0094] The indoor heat exchanger 2 is configured to exchange heat between the indoor air and the refrigerant transmitted in 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 transmitted in the indoor heat exchanger 2, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0095] The heat exchange fan 41 is configured to draw indoor air into the indoor unit and deliver the indoor air after heat exchange with the indoor heat exchanger 2 to the room. The heat exchange fan 41 provides power for the flow of indoor air.

[0096] The air conditioner may include a control device, which is primarily used to control the operating frequency of the compressor and the opening of the throttle element. Some control devices may also control the speed of the outdoor fan and the speed of the heat exchange fan 41. The control device is connected to the compressor, the throttle element, the motor that drives the outdoor fan, and the first motor 42 that drives the heat exchange fan 41 via a data line to transmit communication information.

[0097] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor (microprocessor), or an application specific integrated circuit (ASIC), and may be configured to perform corresponding operations described in the control device when the processor executes a program stored in a non-temporary computer-readable medium coupled to the control device.

[0098] Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disk, floppy disk, or tape), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks, or keyboard drives).

[0099] Currently, most wall-mounted air conditioners are limited in size and weight, typically only capable of cooling or heating the indoor air. If users leave the air conditioner on for extended periods and find the indoor air stale and stuffy, they might need to open windows for ventilation. This is not only cumbersome, but also causes the indoor cooling or heating to quickly escape through the windows while they're open, impacting comfort.

[0100] Some fresh air air conditioners in the related art draw fresh air from the outside through a fresh air device and exhaust the indoor air through an exhaust device. However, the fresh air device and the exhaust device each require a motor drive, resulting in a bulky overall structure and increased costs.

[0101] In order to solve the above problems, some embodiments of the present invention provide a wall-mounted air conditioner 10000. By adjusting and setting the structures and relative positions of components such as the second motor, the fresh air fan, and the exhaust fan, the fresh air fan and the exhaust fan can share the same motor while exhausting and sucking air into the room at the same time, which can reduce the overall size and save costs.

[0102] 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, can be installed in the upper area of ​​an indoor wall.

[0103] The following describes a wall-mounted air conditioner 10000 according to some embodiments with reference to the accompanying drawings.

[0104] Some embodiments of the wall-mounted air conditioner 10000, such as Figure 1 and Figure 2 As shown, it includes: a main body 1000.

[0105] The main body 1000 includes: a housing 1. Figure 1 and Figure 20 As shown, a housing V1 is formed inside the housing 1, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the housing 1. The housing 1 can play a protective role and constitute the overall external structure of the wall-mounted air conditioner 10000.

[0106] Typically, the housing 1 is an elongated shell with its length running horizontally, meaning it is mounted horizontally on a wall. In actual products, to drain condensed water, the housing 1 is mounted horizontally on a wall in some embodiments at a small angle to the horizontal plane.

[0107] Reference Figure 1 and Figure 19-20 The main body 1000 also includes an indoor heat exchanger 2, which is disposed within the housing chamber V1. As described above, the indoor heat exchanger 2 is a link in the refrigerant circuit. Refrigerant circulates within the indoor heat exchanger 2, cooling or heating the air flowing through the surface of the indoor heat exchanger 2. In a wall-mounted air conditioner 10000, the indoor heat exchanger 2 typically extends along the length of the housing 1.

[0108] 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-shaped structure extending along the length direction.

[0109] Reference Figure 2-Figure 4 、 Figure 19The main body 1000 also includes a base 3, which is disposed within the accommodating cavity V1. The base 3 serves as a mounting support structure within the main body 1000, and the indoor heat exchanger 2 can be mounted on the base 3. For example, a volute-tongue air duct V03 is formed on the base 3. After indoor air enters the housing 1, it is guided by the volute-tongue air duct V03, ensuring that the indoor air encounters minimal resistance as it flows through the indoor heat exchanger 2.

[0110] Reference Figure 2 The main body 1000 also includes: a heat exchange fan 41, which is arranged in the volute tongue air duct V03. When the heat exchange fan 41 rotates, it can suck the indoor air into the volute tongue air duct V03 through the heat exchange air inlet 101, and blow the air in the volute tongue air duct V03 into the room from the heat exchange air outlet 102.

[0111] In some embodiments, the heat exchange fan 41 is, for example, a cross-flow fan, which produces low noise and high airflow. The airflow velocity of the cross-flow fan is evenly distributed along the fan's axis, facilitating a greater air delivery distance and range. Furthermore, when a cross-flow fan is used and positioned along the length of the heat exchange fan 41, the driven airflow can flow through the entire indoor heat exchanger 2, ensuring balanced heat exchange efficiency across each position within the indoor heat exchanger 2.

[0112] Reference Figure 2 The main body 1000 further includes a first motor 42 disposed in the accommodating cavity V1. The first motor 42 is used to drive the heat exchange fan 41 to rotate, so that the air inside the air conditioner exchanges heat with the indoor space.

[0113] By providing a heat exchange outlet 102 and a heat exchange inlet 101 in the housing 1, the heat exchange fan 41 can draw indoor air into the housing 1 through the heat exchange inlet 101 when in operation. After the indoor air exchanges heat with the indoor heat exchanger 2, the heat exchanged air is delivered to the room through the heat exchange outlet 102.

[0114] In this way, the indoor ambient temperature can be regulated. The indoor heat exchanger 2 can be used as an evaporator to enable the heat exchange outlet 102 to provide cooling airflow toward the indoor space, or the indoor heat exchanger 2 can be used as a condenser to enable the heat exchange outlet 102 to provide heating airflow toward the indoor space.

[0115] 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 enter from the top and exit from the bottom.

[0116] For example, the height direction of the main body 1000 is the up-down direction.

[0117] It is understood that the main body 1000 is usually mounted on a wall. To avoid interfering with people's daily lives, the main body 1000 is usually hung at a higher position. By setting the main body 1000 to blow out the heated air from below, the blown heated air is less likely to be blocked by the roof or the ground. In this way, the heated air encounters less resistance and consumption during the blowing process, and the air supply range is wide, so that the heated air can flow to the entire indoor space as quickly as possible, thereby improving the heat exchange efficiency.

[0118] Reference Figure 1 and Figure 20 The heat exchange air inlet 101 is located above the heat exchange air outlet 102. The heat exchange air inlet 101 can take in air from above, which can avoid taking in air from the heat exchange air outlet 102, and avoid the heat exchange air being blown out from the heat exchange air outlet 102 and being directly sucked into the heat exchange air inlet 101, thereby reducing the heat exchange air idling and not participating in the indoor heat exchange process.

[0119] In some embodiments, the heat exchange air inlet 101 is located at the top of the casing 1, that is, in an area that is invisible to the user. Hiding the heat exchange air inlet 101 can improve the appearance of the wall-mounted air conditioner 10000.

[0120] 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 toward the front side of the main body 1000 .

[0121] It can be understood that the side of the main body 1000 connected to the wall is usually called the back or rear side, and the side opposite to the rear side is called the front side. Therefore, when the heat exchange outlet 102 is located directly in front of the casing 1, the air outlet is away from the wall, the blowing resistance is small, and the air supply range is wide.

[0122] In some embodiments, the heat exchange air outlet 102 is located on the front side of the housing 1 and near 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 heated air blown out of the heat exchange air outlet 102 flows forward and downward at the same time. In this way, after the heated air is delivered to a certain distance, it can sink and fall on people or objects on the ground, so that people or objects on the ground can be placed in a suitable indoor environment as soon as possible.

[0123] In some embodiments, the heat exchange fan 41 is located on a side of the indoor heat exchanger 2 away from the heat exchange air inlet 101. It is understood that the heat exchange fan 41 is a power drive component that drives the indoor air to exchange heat with the indoor heat exchanger 2 by rotating, and is also a power drive component for air supply.

[0124] By placing the heat exchange fan 41 on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101, the air force generated when the heat exchange fan 41 rotates can be evenly distributed. A part of it is distributed to the air inlet side, so that the inhaled air can overcome the wind resistance generated by the indoor heat exchanger 2 when flowing into the volute air duct V03. The other part is distributed to the air supply side, so that the heat-exchanged air can be transported over a longer distance when blown out from the heat exchange air outlet 102.

[0125] In some embodiments, as Figure 2 As shown, the first motor 42 is located at one end of the heat exchange fan 41 in the longitudinal direction. This facilitates installation and maintenance of the first motor 42, and prevents the main body 1000 from becoming excessively tall or thick due to the placement of the first motor 42. Here, the height of the main body 1000 is aligned with the vertical direction, and the thickness of the main body 1000 is aligned with the front-to-back direction.

[0126] It is understood that the wall-mounted air conditioner 10000 is generally a long strip structure, and the length direction of the heat exchange fan 41 is the same as the length direction of the main body 1000. Figure 1-Figure 2 、 Figure 19 Left-right direction shown in .

[0127] In some embodiments, as Figure 8 As shown, the wall-mounted air conditioner 10000 further includes a second motor 5 , which is disposed in the accommodating cavity V1 , and is located at the other end of the heat exchange fan 41 in the longitudinal direction.

[0128] In this way, the first motor 42 and the second motor 5 are located at both ends of the length direction of the heat exchange fan 41. On the one hand, the two motors are separated and far away, and the mutual electromagnetic interference is small. On the other hand, the two motors are arranged at both ends of the length direction of the heat exchange fan 41, rather than in the thickness or height direction of the main body 1000, so that the main body 1000 of the wall-mounted air conditioner 10000 is slender, slim and thin.

[0129] Reference Figure 9 and Figure 10 The second motor 5 includes a stator 51 and a rotor 52. The stator 51 and the rotor 52 are the main parts of the second motor 5. The stator 51 has a coil wound around it. When alternating current is applied to the coil, an alternating magnetic field is generated. The rotor 52 is induced in the alternating magnetic field and rotates.

[0130] For example, the rotor portion 52 can be a magnetic ring or a magnetic tile. For example, a magnetic ring can reduce magnetic flux leakage loss, enhance magnetic flux, and improve the power output efficiency of the second motor 5. Furthermore, a magnetic ring provides a uniform magnetic field distribution, improved anti-interference performance, and higher mechanical precision.

[0131] The second motor 5 is an outer rotor motor, with a rotor portion 52 disposed radially around the outside of the stator portion 51. This outer rotor motor design not only simplifies the structure of the second motor 5 but also allows for a larger diameter, since the rotor portion 52 is disposed radially around the outside of the stator portion 51. This allows for greater torque, making it suitable for low-speed, high-torque, and direct drive applications. This means that the second motor 5 can output power without a reducer to reduce speed and increase torque, saving space required by the reducer.

[0132] In addition, the rotor portion 52 is located radially outward from the stator portion 51, with a larger heat dissipation area and better heat dissipation performance, which is conducive to the stable operation of the second motor 5. Moreover, with this arrangement, the diameter of the second motor 5 can be controlled to be smaller, without occupying the air flow channel space.

[0133] Reference Figure 9 and Figure 10 The second motor 5 further includes: a motor housing 53 , which can support and protect the main body of the second motor 5 .

[0134] 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 connection with an external structure.

[0135] The second motor 5 also includes an output shaft 532 fixedly connected to the motor housing 53. One end of the output shaft 532 extends axially along the motor housing 53, away from the heat exchange fan 41. The main body of the second motor 5 is spaced a certain distance from the indoor heat exchanger 2 and the heat exchange fan 41 to reduce vibration transmitted to the indoor heat exchanger 2 and the heat exchange fan 41 by the operation of the second motor 5.

[0136] Reference Figure 8 The wall-mounted air conditioner 10000 also includes: a fresh air fan 6, which 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 mounted on the radial outer side of the motor housing 53, and the fresh air fan 6 is fixedly connected to the motor housing 53.

[0137] Reference Figure 8 The wall-mounted air conditioner 10000 further includes an exhaust fan 7, which is a centrifugal fan with axial air intake and radial air discharge. The exhaust fan 7 is fixedly connected to the output shaft 532 of the second motor 5. When the second motor 5 is in operation, it drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously.

[0138] Centrifugal fans offer a compact structure, high air volume, and low noise. Fan noise decreases significantly as the speed decreases. Therefore, smaller centrifugal fans can be used for fresh air fan 6 and exhaust fan 7 to meet high air volume requirements. Centrifugal fans also produce low vibration noise and are less likely to resonate with indoor heat exchanger 2, thus reducing overall vibration and noise within wall-mounted air conditioner 10000.

[0139] Both fresh air fan 6 and exhaust fan 7 utilize centrifugal fans, allowing for optimally arranged wind directions. For example, fresh air fan 6 draws air axially and discharges air radially, while exhaust fan 7 draws air axially and discharges air radially. Fresh air fan 6 and exhaust fan 7 draw air from opposite ends of the fan, each driven to discharge air radially. This eliminates the need for axial overlap or intersection of the fresh and exhaust air paths. This helps minimize the need for avoidance angles in the fresh and exhaust air paths, reducing wind resistance and energy consumption, ensuring consistent airflow, and lowering noise.

[0140] Reference Figure 5-Figure 8 The wall-mounted air conditioner 10000 further includes a fresh air volute 8, a fresh air duct V01 formed within the fresh air volute 8, and a fresh air fan 6 mounted within the fresh air volute 8. The fresh air volute 8 is formed with a fresh air inlet 801 and a fresh air outlet 802. The fresh air fan 6 rotates to allow outdoor air to enter the fresh air volute 8 through the fresh air inlet 801 and to allow the outdoor air that has entered the fresh air volute 8 to enter the room through the fresh air outlet 802.

[0141] Reference Figure 5-Figure 8 The wall-mounted air conditioner 10000 further includes an exhaust volute 9, an exhaust duct V02 formed therein, and an exhaust fan 7 mounted within the exhaust volute 9. The exhaust volute 9 is provided with an exhaust inlet 901 and an exhaust outlet 902. The exhaust fan 7 rotates to allow indoor air to enter the exhaust volute 9 through the exhaust inlet 901 and to be discharged outdoors through the exhaust outlet 902.

[0142] In some embodiments, the fresh air volute 8 and the fresh air fan 6 form a fresh air device. The fresh air fan 6 is disposed within the fresh air duct V01 and is used to drive airflow from the fresh air inlet 801 to the fresh air outlet 802 and into the room. The operation of the fresh air fan 6 provides the power for the fresh air flow.

[0143] Therefore, by setting up the fresh air duct V01 in conjunction with the fresh air fan 6, when the indoor air is relatively dirty or the air quality is poor, the fresh air outside can be driven into the indoor environment through the fresh air fan 6 to improve the indoor airflow environment.

[0144] In some embodiments, the exhaust volute 9 and the exhaust fan 7 form an exhaust device. The exhaust fan 7 is disposed within the exhaust duct V02 and is used to drive airflow from the exhaust inlet 901 to the exhaust outlet 902. The operation of the exhaust fan 7 provides the power to move the dirty air.

[0145] Therefore, by setting up the exhaust duct V02 and cooperating with the exhaust fan 7, when the indoor air is relatively polluted or the air quality is poor, the exhaust fan 7 can suck out the polluted air in the indoor space. In this way, when the indoor air volume is reduced, fresh air will be sucked in from the outside or from other rooms through doors and windows, thereby reducing the pollution level of the indoor air.

[0146] The second motor 5, the fresh air fan 6, the exhaust fan 7, the fresh air volute 8 and the exhaust volute 9 constitute a two-way ventilation component, which is arranged in the main body 1000. The two-way ventilation component can provide fresh air for the room and exhaust the indoor air to the outside.

[0147] It should be noted that, in the wall-mounted air conditioner 10000, the operating mode of the two-way ventilation component can be set according to actual usage requirements.

[0148] In some embodiments, the two-way ventilation component can operate in fresh air mode and exhaust mode at the same time, that is, the fresh air duct V01 and the exhaust duct V02 can be opened at the same time. While the indoor dirty air flows to the outdoor space, the outdoor fresh air can also enter the indoor space. Through the one-in and one-out airflow drive combination, it is helpful to increase the improvement efficiency of the indoor space airflow, thereby meeting the user's needs in time when the user urgently needs to exhaust or update the indoor air.

[0149] Furthermore, since fresh air is replenished into the room while exhausting indoor air, sufficient indoor air is maintained, making it easier to draw in indoor air. For example, if there is a leak of irritating gases (such as those released by home improvement materials), coal gas, or other gases indoors, a two-way ventilation assembly can be configured to operate in both fresh air and exhaust modes simultaneously, achieving rapid ventilation. Furthermore, compared to conventional fresh air structures that simply introduce fresh air, the two-way ventilation assembly in some embodiments has a greater purification flow rate per unit time, higher ventilation efficiency, and better purification effects.

[0150] Furthermore, when ventilating, the ventilation is prevented from changing too quickly, which would cause a drastic change in indoor temperature, as would be the case with directly opening a window, thereby preventing discomfort to indoor occupants due to sudden temperature rises or drops. Furthermore, the main body 1000 is located at a higher position, so the ventilation position will not be too close to people, causing discomfort.

[0151] In some embodiments, the two-way ventilation component can selectively operate in either fresh air mode or exhaust mode. Specifically, the two-way ventilation component can activate the fresh air mode while disabling the exhaust mode, in which case only the fresh air duct V01 is ventilated, while the exhaust duct V02 is not. Alternatively, the two-way ventilation component can activate the exhaust mode while disabling the fresh air mode, in which case the fresh air duct V01 is not ventilated, while the exhaust duct V02 is ventilated.

[0152] In some embodiments, a two-way ventilation component is provided in the wall-mounted air conditioner 10000, such as Figure 8 As shown, the two-way ventilation assembly includes: a second motor 5, a fresh air fan 6, an exhaust fan 7, a fresh air volute 8 and an exhaust volute 9.

[0153] In some embodiments, the second motor 5 is an outer rotor motor. The second motor 5 includes a stator 51, a rotor 52, a motor housing 53, and an output shaft 532. The stator 51 has a coil wound thereon. The rotor 52 is disposed radially around the stator 51. The motor housing 53 is fixedly connected to the rotor 52. The output shaft 532 is fixedly connected to the motor housing 53, with one end of the output shaft 532 extending axially from the heat exchange fan 41 along the motor housing 53.

[0154] In some embodiments, the second motor 5 is located at the end of the heat exchange fan 41 in the longitudinal direction, with the axial direction of the second motor 5 being arranged along the length of the heat exchange fan 41. The second motor 5 serves as a common power source for the fresh air device and exhaust device of the two-way ventilation assembly. To ensure the operation of the fresh air device and exhaust device, the second motor 5 must have sufficient operating power to drive a sufficient air flow. Based on the power requirements of the second motor 5, the second motor 5 needs to be sufficiently large.

[0155] In some embodiments, under the premise that the size parameters of the second motor 5 are roughly determined, when arranging the fresh air device and the exhaust device, consideration is given to how to utilize the space where the second motor 5 is located and occupy as little additional space as possible.

[0156] In some embodiments, both the fresh air fan 6 and the exhaust fan 7 are centrifugal fans and are connected to the same motor, which not only saves the number of motors, reduces the overall size, and saves costs, but also keeps the two centrifugal fans stacked along the axial direction of the second motor 5, that is, the two centrifugal fans are stacked along the length direction of the heat exchange fan 41.

[0157] In some embodiments, the centrifugal fan itself is relatively flat in the axial direction. Stacking the fresh air fan 6 and the exhaust fan 7 in this manner can reduce the overall axial dimension, thereby reducing the length of the main body 1000. Because the fresh air fan 6 and the exhaust fan 7 are connected to the same motor and rotate synchronously, they rotate in unison and do not require a large gap between them. Therefore, the fresh air fan 6 and the exhaust fan 7 can be arranged relatively close in the axial direction.

[0158] It should be noted that when describing the internal structure of the two-way ventilation component, the terms "axial", "radial" and "circumferential" are all based on the axial, radial and circumferential directions 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 surrounding the output shaft 532 is the circumferential direction.

[0159] In the above scheme, by adopting an external rotor motor for the second motor 5, the fresh air fan 6 is arranged on the radially outer side of the motor housing 53, the part of the second motor 5 in the motor housing 53 is embedded in the fresh air fan 6, and the part on the output shaft 532 is embedded in the exhaust fan 7, so that the second motor 5 almost overlaps with the exhaust fan 7 and the fresh air fan 6 in the length direction of the heat exchange fan 41, so that the parts of the exhaust fan 7 and the fresh air fan 6 axially outside the second motor 5 are relatively small, so that the overall axial size of the two-way ventilation component is close to the axial size of the second motor 5, so that the length size of the main body 1000 can be controlled.

[0160] For example, the main part of the second motor 5 is located in the fresh air fan 6 instead of the exhaust fan 7. The second motor 5 occupies the space of the fresh air duct V01, which can make more air flow space for the exhaust duct V02, which is conducive to ensuring a larger exhaust air volume, exhausting air to the outdoors, and improving exhaust efficiency.

[0161] Moreover, precisely because the second motor 5 uses an outer rotor motor that can adapt to low-speed, high-torque, direct drive and other scenarios, there is no need to set up a reducer, and the fresh air fan 6 can be directly mounted on the radially outer side of the motor housing 53. This not only avoids the reducer from increasing the overall axial size, but also avoids the reducer from increasing the difficulty of structural layout. By simply fixing the fresh air fan 6 to the motor housing 53 and connecting the exhaust fan 7 to the output shaft 532 of the second motor 5, the exhaust fan 7 and the fresh air fan 6 can be coaxially stacked and arranged, allowing the two to rotate synchronously and maintain a small gap, without the need for an excessively large spacing. This also ensures that the overall axial size of the two-way ventilation assembly is close to the axial size of the second motor 5, and the length of the main body 1000 is controllable.

[0162] In some embodiments, the fresh air device and the exhaust device are effectively integrated so that the two devices can reasonably utilize their respective structural characteristics and spatial characteristics to complete a flat design, which not only reduces the overall size and weight of the two-way ventilation assembly, but also makes the two-way ventilation assembly as a whole light and the air ducts do not interfere with each other. The two-way ventilation assembly is arranged at one end in the length direction of the heat exchange fan 41. Compared with the main body without a two-way heat exchange assembly, only the horizontal length is increased. The height and thickness of the main body 1000 can remain roughly unchanged or change little, making the main body 1000 light and thin in appearance. When hung on the wall, it will not affect the indoor space layout due to being too abrupt, and it will not be difficult to fix the wall-mounted air conditioner 10000 due to being too heavy, thereby reducing the risk of falling off the wall. The wall-mounted air conditioner 10000 is still a light and thin model as a whole. When hung on the wall, it is not only beautiful but also has a controllable weight.

[0163] In some embodiments, as Figures 8-10 As shown, a portion 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, thereby increasing the axial and radial bending moment bearing capacity of the output shaft 532 and improving the rotational stability of the output shaft 532.

[0164] In some embodiments, as Figure 10 As shown, a portion of the motor housing 53 is located radially outside the rotor portion 52 , increasing the connection area and achieving stable fixation of the rotor portion 52 .

[0165] In some embodiments, the motor housing 53 and the fresh air fan 6 are integrally injection-molded parts, thereby reducing the number of processing steps and improving the connection firmness between the motor housing 53 and the fresh air fan 6.

[0166] In some embodiments, the stator 51, rotor 52, and motor housing 53 are located within the fresh air volute 8. One end of the output shaft 532 extends into the fresh air volute 8, and the other end of the output shaft 532 extends into the exhaust volute 9. The main body of the second motor 5 is located within the fresh air volute 8, rather than the exhaust volute 9. This occupies space in the fresh air duct V01, freeing up more air flow in the exhaust duct V02. This helps ensure a larger exhaust air volume, facilitates exhaust to the outside, and improves exhaust efficiency.

[0167] In some embodiments, the fresh air inlet 801 is located below the main body 1000 in the height direction of the main body 1000. It is understood that the fresh air inlet 801 needs to be connected to a pipe to introduce outdoor air, which is referred to as the fresh air introduction pipe 141 (e.g., Figure 2 The fresh air introduction pipe 141 may be a component of the wall-mounted air conditioner 10000 or may be a fresh air introduction pipe 141 configured by the user after purchasing the wall-mounted air conditioner 10000.

[0168] By arranging the fresh air inlet 801 below the main body 1000, the fresh air introduction pipe 141 can be connected to the fresh air inlet 801 from below. The connection extends generally in the up-down direction, rather than in the front-to-back direction, which would make the main body 1000 too thick. This allows the wall-mounted air conditioner 10000 to maintain a thin and light appearance. In addition, the portion of the fresh air volute 8 where the fresh air fan 6 is mounted is circular. Since the axis of the fresh air volute 8 extends along the length of the main body 1000, there is free space at the front and rear sides of the bottom of the circle. This space can be used to arrange the fresh air inlet 801 to connect to the fresh air introduction pipe 141. As a result, the connection between the fresh air introduction pipe 141 and the fresh air inlet 801 can be placed in this free space without occupying additional space. This allows the height of the main body 1000 to be controlled.

[0169] In some embodiments, the exhaust outlet 902 is located below the main body 1000 in the height direction of the main body 1000. It is understood that the exhaust outlet 902 needs to be connected to a pipe to guide the indoor air to the outside, which is referred to as the exhaust outlet pipe 142 (e.g., Figure 2 The exhaust outlet duct 142 may be a component of the wall-mounted air conditioner 10000 or may be an exhaust outlet duct 142 configured by the user after purchasing the wall-mounted air conditioner 10000.

[0170] By positioning the exhaust outlet 902 below the main body 1000, the exhaust outlet duct 142 can be connected to the exhaust outlet 902 from below. The connection extends generally in the vertical direction, rather than in the front-to-back direction, which would make the main body 1000 too thick. This allows the wall-mounted air conditioner 10000 to maintain a slim and lightweight design. Furthermore, the portion of the exhaust volute 9 where the exhaust fan 7 is mounted is circular. Since the axis of the exhaust volute 9 extends along the length of the main body 1000, this circular shape has free space at the front and rear sides of the bottom. Furthermore, since the exhaust fan 7 takes in air axially and discharges air radially, the diffuser section of the exhaust volute 9 can be arranged generally in the vertical direction and can be placed in the aforementioned free space at the front or rear sides.

[0171] An exhaust outlet 902 is provided here to connect to the exhaust outlet pipe 142 , so that the connection between the exhaust outlet pipe 142 and the exhaust outlet 902 can be placed in the empty space without occupying additional space, thereby controlling the height of the main body 1000 .

[0172] In some embodiments, as Figure 2As shown, wall-mounted air conditioner 10000 may include: a fresh air intake duct 141 connected to fresh air inlet 801, and an exhaust air outlet duct 142 connected to exhaust air outlet 902. A duct avoidance opening 104 is provided on the bottom wall of housing 1. Fresh air intake duct 141 and exhaust air outlet duct 142 are disposed through duct avoidance opening 104 and extend from below out of main body 1000. Fresh air intake duct 141 and exhaust air outlet duct 142 are two independent pipes, which help separate the fresh air flow paths and exhaust air flow paths from each other, preventing them from crossing, and reducing the risk of air leakage caused by cross-flow.

[0173] A pipe clearance opening 104 is provided on the bottom wall of the main body 1000 to facilitate installation of the aforementioned pipes and ensure the aesthetic appearance of the main body 1000. The fresh air intake duct 141 and the exhaust air outlet duct 142 are connected from the bottom of the main body 1000, without interfering with the upper area of ​​the wall-mounted air conditioner 10000 after it is hung on the indoor wall. In other words, the fresh air intake duct 141 and the exhaust air outlet duct 142 will not interfere with the rear wall or the roof above, making the wall-mounted air conditioner 10000 more convenient and quick to install.

[0174] In some embodiments, the fresh air inlet 801 is arranged to face upward. For example, the fresh air inlet 801 may face in a direction perpendicular to the length of the main body 1000. This allows the wall-mounted air conditioner 10000 to be connected to the fresh air inlet 801 without excessively lengthening the entire body by providing a two-way ventilation assembly at the end of the wall-mounted air conditioner 10000.

[0175] In some embodiments, the fresh air inlet 801 is located at the bottom of the main body 1000 and is arranged close to the rear side. In this way, after the fresh air inlet 801 is connected to the fresh air introduction pipe 141, the fresh air introduction pipe 141 can be arranged against the wall.

[0176] In some embodiments, the exhaust vent 902 is positioned so that air flows downward. For example, the exhaust vent 902 may be positioned perpendicular to the length of the main body 1000. This allows the wall-mounted air conditioner 10000 to be installed with a two-way ventilation assembly. When the exhaust duct 142 is connected to the exhaust vent 902, the exhaust duct 142 does not excessively lengthen the entire wall-mounted air conditioner 10000. In some embodiments, the exhaust vent 902 is located at the bottom of the main body 1000, near the rear. This facilitates placement of the exhaust duct 142 against the wall.

[0177] Of course, some embodiments of the present disclosure are not limited thereto. Figure 1As shown, the duct escape opening 104 can also be provided on the side wall of the housing 1. The fresh air intake duct 141 connects to the fresh air inlet 801 from the bottom of the main body 1000, then bends and extends laterally, then extends from the duct escape opening 104 on the side wall of the housing 1 and then extends outdoors. The exhaust air outlet duct 142 connects to the exhaust air outlet 902 from the bottom of the main body 1000, then bends and extends laterally, then extends from the duct escape opening 104 on the side wall of the housing 1 and then extends outdoors.

[0178] It is understandable that a refrigerant pipe and a drain pipe are usually provided at one end of the main body 1000 in the length direction. The refrigerant pipe is used to connect the indoor heat exchanger 2 with the outdoor compressor and outdoor heat exchanger, and the drain pipe is used to discharge the condensed water generated in the wall-mounted air conditioner 10000.

[0179] A pipe avoidance opening 104 is provided on the side wall of the housing 1. The fresh air intake pipe 141 and the exhaust air outlet pipe 142 are then positioned horizontally and then led outward, facilitating the juxtaposition of at least one of the fresh air intake pipe 141 and the exhaust air outlet pipe 142 with the drain pipe and the refrigerant pipe. This juxtaposed multi-tube arrangement is then wrapped with an external bundle of pipes or a bundle of bands, resulting in the appearance of a single tube. This reduces the number of connected pipes required after installation of the wall-mounted air conditioner 10000, resulting in a simpler appearance. This not only facilitates assembly but also prevents the risk of multiple pipes colliding.

[0180] In some embodiments, as Figure 8 and Figure 13 As shown, the fresh air fan 6 forms a fresh air receiving groove V08 at the radial center, and at least a portion of the stator part 51 of the second motor 5, at least a portion of the rotor part 52, and at least a portion of the motor housing 53 are accommodated in the fresh air receiving groove V08.

[0181] For example, the hub of the fresh air fan 6 forms a fresh air receiving groove V08. At this time, the main part of the second motor 5 (i.e., the stator part 51, the rotor part 52) ​​and the motor housing 53 can be placed in the center of the fresh air fan 6, which will not hinder the flow of exhaust air flow, and can make full use of the hub space of the fresh air fan 6, reduce the space occupied by the second motor 5 on the outside, and reduce the axial size of the two-way ventilation component.

[0182] Moreover, the hub of the fresh air fan 6 has a protective effect after being placed on the outside of the second motor 5, and can also make the center of mass of the fresh air fan 6 as close as possible to the center of the rotor part 52, so that the bending moment generated by the fresh air fan 6 on the second motor 5 is small, the fresh air fan 6 shakes less when rotating, and the fresh air fan 6 runs stably with low energy consumption.

[0183] In some embodiments, as Figure 8 、 Figure 13-14As shown, the fresh air fan 6 includes a fresh air disc 61 and fresh air blades 62. The fresh air disc 61 is coaxially arranged with the second motor 5 and connected to the motor housing 53 of the second motor 5. The fresh air blades 62 are located at the outer edge of the fresh air disc 61 and extend along the axial direction of the fresh air disc 61. When the motor housing 53 rotates, the fresh air disc 61 rotates synchronously, thereby realizing the rotation of the fresh air fan 6.

[0184] In some embodiments, as Figure 8 、 Figure 13-14 As shown, the fresh air fan 6 includes a fresh air protrusion 64 provided on the fresh air wheel 61, and the fresh air protrusion 64 extends relative to the fresh air wheel 61 in a direction away from the heat exchange fan 41, so that a fresh air receiving groove V08 is formed on the side of the fresh air protrusion 64 facing the heat exchange fan 41.

[0185] When controlling the size of the main body 1000, minimizing the structural dimensions of the bidirectional ventilation assembly is crucial. The primary requirement in a bidirectional ventilation assembly is that the second motor 5 can output sufficient power to meet both exhaust and fresh air volume requirements. Therefore, the thickness of the second motor 5, particularly the combined axial thickness h3 of the stator 51, rotor 52, and motor housing 53, must be sufficiently large.

[0186] After the second motor 5 occupies a certain thickness, in order to avoid excessive expansion of the structural dimensions of the two-way ventilation assembly, when optimizing the fresh air fan 6, a fresh air protrusion 64 is set in the center of the fresh air disc 61. The fresh air protrusion 64 extends relative to the fresh air disc 61 in a direction away from the exhaust fan 7, so that a fresh air receiving groove V08 is formed on the side of the fresh air protrusion 64 facing the heat exchange fan 41. 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 are accommodated in the fresh air receiving groove V08. This is conducive to the rational use of the space inside the fresh air fan 6, reducing the total axial dimension of the second motor 5 and the fresh air fan 6 after assembly, thereby reducing the axial dimension of the two-way ventilation assembly.

[0187] Such a setting is also beneficial to reducing the distance between the main part of the second motor 5 and the exhaust fan 7, thereby reducing the axial distance between the exhaust fan 7 and the main part of the second motor 5, and reducing the bending moment generated by the exhaust fan 7 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.

[0188] In some embodiments, reference Figure 8 、 Figure 12-14The fresh air blades 62 include first fresh air blades 621, which extend from the fresh air wheel 61 in a direction away from the exhaust fan 7. The first fresh air blades 621 are arranged circumferentially to form a blade tube, which is open on the side facing the axial air inlet end to facilitate air intake, reduce air intake resistance, and ensure the intake of fresh air.

[0189] In some embodiments, reference Figure 8 、 Figure 12-14 The fresh air blade 62 may include a second fresh air blade 622, which extends from the fresh air wheel 61 toward the exhaust fan 7. In this way, the fresh air fan 6 includes double-layer centrifugal blades. In this way, the double-layer centrifugal blade structure design helps to increase the overall structural strength of the centrifugal fan while meeting the demand for large air volume.

[0190] In some embodiments, reference Figure 8 、 Figure 12-14 In the axial direction of the fresh air fan 6, the length h12 of the second fresh air blade 622 is less than the length h11 of the first fresh air blade 621. Here, the first fresh air blade 621 faces the axial air inlet end, so its axial length is greater, which facilitates utilizing the first fresh air blade 621 to obtain a greater fresh air intake volume. The shorter second fresh air blade 622 facilitates supplementing the fresh air intake. Furthermore, the first fresh air blade 621 is longer on the windward side, which helps reduce noise while ensuring fresh air volume.

[0191] In some embodiments, reference Figure 12 A wheel hole 612 is formed on the fresh air wheel 61, and one side of the second fresh air blade 622 can inhale air through the wheel hole 612. The distance from the wheel hole 612 to the center of the fresh air wheel 61 is smaller than the distance from the fresh air blade 62 to the center of the fresh air wheel 61.

[0192] For example, the wheel hole 612 is closer to the center of the fresh air wheel 61 than the fresh air blade 62. This helps the second fresh air blade 622 to guide the airflow axially into the space where the second fresh air blade 622 is located when sucking air from the wheel hole 612, thereby reducing the turbulence caused by the competition with the first fresh air blade 621.

[0193] In some embodiments, as Figure 1 As shown, a casing air outlet 105 is provided on the casing 1. The casing air outlet 105 is provided corresponding to the fresh air outlet 802 of the fresh air volute 8, so that the fresh air discharged from the fresh air outlet 802 is discharged from the casing air outlet 105.

[0194] 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 be correspondingly arranged on the front side of the housing 1, so that the fresh air can be easily discharged from the front of the main body 1000. When the wall-mounted air conditioner 10000 is installed on a wall, especially at a high point on the wall, there are few obstacles in front of it, and the air outlet from the front can ensure a larger air supply area for the fresh air.

[0195] In some embodiments, the fresh air outlet 802 is located at the top of the main body 1000, and the casing air outlet 105 can be correspondingly set on the top wall of the casing 1, so that the fresh air is supplied toward the roof, and the roof can be used to guide the flow direction of the fresh air, so that the fresh air flows along the roof to expand the air supply area.

[0196] Moreover, since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, the heat exchange air inlet 101 is relatively high on the casing 1, so that part of the fresh air blown out from the top of the fresh air outlet 802 can be sucked into the accommodating cavity V1 again through the heat exchange air inlet 101 and flow through the indoor heat exchanger 2.

[0197] On the one hand, such a setting is conducive to the fresh air reaching the room temperature quickly, improving 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, so that the air blown into the room from the heat exchange outlet 102 is generally fresh, improving the uniformity of the distribution of the fresh air in the room.

[0198] 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 be correspondingly provided below the housing 1.

[0199] Since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the heat exchange air outlet 102 is relatively low on the casing 1, the fresh air outlet 802 blows out fresh air from below, so that the air outlet area of ​​the casing air outlet 105 is close to or even partially overlaps with the air outlet area of ​​the heat exchange air outlet 102, which is conducive to the mixing of fresh air and the indoor air after heat exchange. On the one hand, it improves the uniformity of the fresh air after mixing in the indoor air. On the other hand, the fresh air can absorb the cold or heat of the indoor air after heat exchange, so that the temperature of the fresh air tends to the indoor temperature, thereby improving the blowing comfort.

[0200] Moreover, the outlet direction of the fresh air outlet 802 is opposite to the inlet direction of the heat exchange inlet 101, and the fresh air will not be sucked into the heat exchange inlet 101, reducing the proportion of the fresh air intake at the heat exchange inlet 101, making the total air outlet of the wall-mounted air conditioner 10000 larger, and improving the overall circulation efficiency of the indoor air.

[0201] Moreover, the fresh air outlet 802 is located below the main body 1000, close to the people's activity space, making it convenient for people to observe the fresh air outlet status. This achieves a visual effect of fresh air outlet, which is conducive to improving people's experience.

[0202] For example, when the fresh air outlet 802 is located below the main body 1000, it is usually located on the front side below the main body 1000, so that the fresh air can flow forward and downward, ensuring that the fresh air can be delivered to the ground and that the fresh air can be delivered to a sufficiently long distance.

[0203] For example, Figure 1 and Figure 19 As shown, an air guide grille 16 is provided at the air outlet 105 of the casing 1 to adjust the outlet direction of fresh air.

[0204] In some embodiments, as Figure 2 As shown, exhaust inlet 901 is formed on exhaust volute 9, and its axial direction is arranged along the length of heat exchange fan 41. In other words, exhaust inlet 901 directly faces the axial air inlet end of exhaust fan 7, minimizing wind resistance to exhaust fan 7 entering through exhaust inlet 901 and facilitating guaranteed exhaust air intake. If exhaust and air intake are more easily achieved, a smaller exhaust fan 7 can be selected, further reducing the size of the two-way ventilation assembly.

[0205] In some embodiments, the exhaust inlet 901 is located on the exhaust volute 9, facing away from the indoor heat exchanger 2. The air intake area of ​​the exhaust inlet 901 avoids the indoor heat exchanger 2. When condensed water forms on the indoor heat exchanger 2, or when condensed water adheres to the surfaces of components near the indoor heat exchanger 2 within the accommodating chamber V1, the condensed water is less likely to be drawn into the exhaust duct V02 by the exhaust fan 7. This reduces the risk of water accumulation and bacterial growth within the exhaust duct V02, and also reduces the risk of condensed water entering the motor housing 53 through the output shaft 532 and damaging the motor. When the fresh air fan 6 rotates, drawing air from the outside, condensed water on the indoor heat exchanger 2 is prevented from being drawn into the fresh air duct V01, reducing the risk of water accumulation and bacterial growth within the fresh air duct V01.

[0206] In some embodiments, as Figure 1-Figure 3 As shown, a casing air inlet 103 is provided on the casing 1 at the end where the second motor 5 is located, and the casing air inlet 103 is located at the top of the main body 1000. A first connecting air duct V04 is formed between the casing air inlet 103 and the exhaust air inlet 901. The exhaust fan 7 rotates to drive the indoor air into the first connecting air duct V04 through the casing air inlet 103, and allows the indoor air to enter the exhaust volute 9 through the exhaust air inlet 901.

[0207] In other words, no physical pipe is required between the housing air inlet 103 and the exhaust air inlet 901, and air flow is drawn in from the top solely by wind pressure. The housing air inlet 103 is located at the top of the housing 1, i.e., in an area not visible to the user. Hiding the housing air inlet 103 improves the appearance.

[0208] In some embodiments, the housing 1 is provided with a housing air inlet 103 at the end where the second motor 5 is located, and the housing air inlet 103 is located on the side of the main body 1000. The exhaust fan 7 rotates to drive indoor air into the interior of the housing 1 through the housing air inlet 103, and then allows the indoor air to enter the exhaust volute 9 through the exhaust air inlet 901. In other words, there is no need for a physical pipe connecting the housing air inlet 103 and the exhaust air inlet 901. Moreover, the housing air inlet 103 is located on the side of the main body 1000 and can be directly opposite the exhaust air inlet 901.

[0209] This shortens the air inlet path from the housing air inlet 103 to the exhaust air inlet 901. Furthermore, the air inlet path from the housing air inlet 103 to the exhaust air inlet 901 is generally arranged along the axial direction of the exhaust fan 7. This allows the indoor air to flow along this air inlet path toward the exhaust fan 7 without having to change direction multiple times. This further reduces exhaust air inlet resistance, ensuring a high exhaust air intake volume.

[0210] In some embodiments, the exhaust fan 7 can be a plastic part, so as to be light in weight and low in cost. Of course, some embodiments are not limited thereto, and the exhaust fan 7 can also be a resin part, a metal part, etc.

[0211] In some embodiments, the exhaust fan 7 can be a plastic part, so as to be light in weight and low in cost. In some embodiments, the exhaust fan 7 can also be a resin part, a metal part, etc.

[0212] In some embodiments, the fresh air fan 6 can be a plastic part, so as to be 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.

[0213] Likewise, the exhaust volute 9 can be a plastic part, thereby being 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.

[0214] The fresh air volute 8 can be a plastic part, so as to be 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.

[0215] In some embodiments, 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 fan 7 is S2, satisfying S1>S2.

[0216] For example, S1 =πD1×h1, D1 is the outer diameter of the fresh air fan 6, and h1 is the total thickness of the fresh air impeller 61 and the fresh air blades 62 on the fresh air fan 6 in the axial direction.

[0217] The fresh air fan 6 includes a fresh air disc 61 and fresh air blades 62. The fresh air blades 62 are located at the outer edge of the fresh air disc 61 and extend axially along the fresh air disc 61. The total axial thickness of the fresh air disc 61 and the fresh air blades 62 is h1. Here, the fresh air fan 6 can have one fresh air disc 61 or at least two fresh air discs 61 spaced apart in the axial direction. Each fresh air disc 61 can have only one circle of fresh air blades 62 on either side in the axial direction, or can have one circle of fresh air blades 62 on each side. h1 is the maximum dimension of the fresh air fan 6 in the axial direction.

[0218] S2=πD2×h2, D2 is the outer diameter of the exhaust fan 7, and h2 is the total thickness of the exhaust impeller 71 and the exhaust blades 72 on the exhaust fan 7 in the axial direction.

[0219] The exhaust fan 7 includes an exhaust disc 71 and exhaust blades 72. Exhaust blades 72 are located at the outer edge of the exhaust disc 71 and extend axially along the exhaust disc 71. The total axial thickness of the exhaust disc 71 and exhaust blades 72 is h2. The exhaust fan 7 may include a single exhaust disc 71 or at least two exhaust discs 71 spaced apart in the axial direction. Each exhaust disc 71 may be provided with a single ring of exhaust blades 72 on either side, or with a single ring of exhaust blades 72 on each side. h2 represents the maximum axial dimension of the exhaust fan 7.

[0220] With this arrangement, the outer circular curved surface area of ​​the fresh air fan 6 is large, and the outer circular curved surface area of ​​the exhaust fan 7 is small, which is conducive to achieving a large fresh air volume under the condition of limited space size of the whole machine.

[0221] For example, according to the structural and functional requirements of some embodiments, the outer diameter D1 of the fresh air fan 6 is larger than the outer diameter D2 of the exhaust fan 7. This facilitates the area swept by the blades of the fresh air fan 6 when rotating to be larger than the area swept by the blades of the exhaust fan 7 when rotating. This results in a greater fresh air volume than the exhaust air volume, meeting the design requirements of the wall-mounted air conditioner 10000. In other words, drawing air from the unlimited outdoor space into the room consumes less energy than drawing air from a relatively closed indoor space and exhausting it outdoors. Furthermore, the air in the outdoor environment is fresher, so drawing air from the outdoors into the room further helps replenish fresh air indoors, replenishing the oxygen content in the indoor air, and reducing the carbon dioxide content.

[0222] Reference Figure 5-Figure 6 、 Figure 11 and Figure 13The exhaust outlet 902 of the exhaust duct V02 and the fresh air outlet 802 of the fresh air duct V01 are staggered on the outer periphery of the two-way ventilation assembly. This facilitates connecting the exhaust air outlet 902 to the exhaust air outlet pipe 142 and the fresh air inlet 801 to the fresh air inlet pipe 141. It also prevents the fresh air and exhaust air from crossing each other along their flow paths within the two-way ventilation assembly. The staggered arrangement of the exhaust outlet 902 and the fresh air outlet 802 results in the outer diameter D2 of the exhaust fan 7 being smaller than the outer diameter D1 of the fresh air fan 6.

[0223] In some embodiments, the volute tongue of the fresh air volute 8 and the volute tongue of the exhaust volute 9 are staggered in the circumferential direction of the second motor 5. This facilitates staggered arrangement of the exhaust air outlet 902 of the exhaust duct V02 and the fresh air outlet 802 of the fresh air duct V01 on the outer circumference of the two-way ventilation assembly, making it convenient to connect the exhaust air outlet 902 to the exhaust air outlet pipe 142 and the fresh air outlet 802 to the fresh air inlet pipe 141, avoiding interference caused by the close distance between the two pipe joints, and facilitating both assembly and sealing.

[0224] Furthermore, in some embodiments, the exhaust outlet 902 is positioned downward, while the fresh air outlet 802 is positioned forward. This not only allows the pipe connections of the exhaust outlet 902 and the fresh air outlet 802 to be directly staggered, but also facilitates connection to the exhaust outlet duct 142 by positioning the exhaust outlet 902 downward, allowing the exhaust outlet duct 142 to be positioned against a wall. The fresh air outlet 802 is positioned forward, allowing fresh air to be delivered forward, expanding the fresh air supply range.

[0225] For example, the exhaust outlet 902 is located at the rear side of the exhaust volute 9, and the air outlet direction of the exhaust outlet 902 is set downward. In this way, when the exhaust outlet 902 is connected to the exhaust outlet pipe 142, the exhaust outlet pipe 142 will not excessively stretch the entire wall-mounted air conditioner 10000. In addition, the exhaust outlet 902 is left on the side of the exhaust volute 9 that is close to the wall, which facilitates the design of the main body 1000 being wide at the back and narrow at the front.

[0226] When the main body 1000 is designed to be wide at the back and narrow at the front, with the wider back portion mounted against the wall, people viewing the wall-mounted air conditioner 10000 will see the narrower front portion, creating the impression that the wall-mounted air conditioner 10000 is thinner and lighter. This can reduce the perceived heaviness of the wall-mounted air conditioner 10000, thereby alleviating the feeling of oppression that may arise from hanging the wall-mounted air conditioner 10000 on the wall.

[0227] In some embodiments, the fresh air outlet 802 is arranged to be downward and tilted forward, which is conducive to allowing the wall-mounted air conditioner 10000 to discharge fresh air forward, ensuring that the fresh air can be delivered to the ground and to a sufficiently long distance.

[0228] For example, the fresh air outlet 802 is located in front of the exhaust air outlet 902, so that the fresh air outlet 802 and the exhaust air outlet 902 are staggered at a greater distance, which is more conducive to reducing mutual interference and facilitating takeover.

[0229] In some embodiments, the outer diameter D1 of the fresh air fan 6 is larger than the outer diameter D2 of the exhaust fan 7 to ensure that the fresh air volume is larger than the exhaust air volume.

[0230] Suitable, such as Figure 5-Figure 6 、 Figure 14 As shown, the fresh air volute 8 includes a first volute shroud 812 surrounding the radially outer side of the fresh air fan 6, and the exhaust volute 9 includes an exhaust volute shroud 906 surrounding the radially outer side of the exhaust fan 7. The diameter of the first volute shroud 812 is larger than the diameter of the exhaust volute shroud 906. This allows for compact assembly components and reduces overall space usage.

[0231] Moreover, the exhaust volute enclosure 906 can leave more space on the radial outside, so that there is space for air to flow radially outside the exhaust volute 9 inside the casing 1. In this way, when the exhaust volute 9 inhales air from the exhaust air inlet 901, more air can enter, which is beneficial to increase the exhaust air intake volume.

[0232] In some embodiments, the fresh air inlet 801 is located below the main body 1000 in the height direction, and the fresh air outlet 802 is located between the fresh air inlet 801 and the exhaust outlet 902 in the length direction of the heat exchange fan 41. This arrangement allows the fresh air inlet 801, fresh air outlet 802, exhaust outlet 902, and pipe connections to be compactly positioned, which helps reduce the overall size.

[0233] In some embodiments, as Figure 1 、 Figure 11 、 Figure 13 and Figure 19 As shown, in the longitudinal direction of the heat exchange fan 41, the size L3 of the housing air outlet 105 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 along the length of the heat exchange fan 41 is h1, and the thickness of the exhaust fan 7 along the length of the heat exchange fan 41 is h2. The sum of h1 and h2 is less than the length L3 of the housing air outlet 105. This device allows the housing air outlet 105 to be longer along the length of the heat exchange fan 41, fully utilizing the free space provided by the two-way ventilation assembly in this direction. This helps to extend the fresh air outlet in this direction, expand the fresh air outlet width, and deliver fresh air to a wider area.

[0234] In some embodiments, as Figure 11As 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 12-13 As shown, the total axial thickness of the fresh air disc 61 and fresh air blades 62 on the fresh air fan 6 is h1. For example, h2 < h1. This arrangement ensures that the fresh air volume is greater than the exhaust air volume while increasing the axial thickness of the main body of the fresh air fan 7, thereby increasing structural strength and being able to withstand greater torque. Since the exhaust fan 7 requires less air volume, the smaller axial thickness of the main body can appropriately reduce the exhaust air volume and simultaneously reduce the axial size of the two-way ventilation assembly.

[0235] In some embodiments, as Figure 10-11 As shown, the total axial thickness of the stator portion 51, the rotor portion 52, and the motor housing 53 is h3. The exhaust fan 7 includes an exhaust disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust disc 71 and extend axially along the exhaust disc 71. The total axial thickness of the exhaust disc 71 and the exhaust blades 72 is h2. Therefore, h3>h2. It is understandable 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 axial thickness of the stator portion 51, the rotor portion 52, and the motor housing 53 is set to be greater than the axial thickness of the main portion of the exhaust fan 7 to ensure that the second motor 5 can support the rotation of both fans and ensure that the second motor 5 has sufficient supporting force.

[0236] In some embodiments, as Figure 10 、 Figure 13 As shown, the total axial thickness of the stator 51, rotor 52, and motor housing 53 is h3. The total axial thickness of the fresh air impeller 61 and fresh air blades 62 on the fresh air fan 6 is h1, where h1>h3. This arrangement ensures a high fresh air volume without the second motor 5 occupying a significant amount of air duct space. Furthermore, the second motor 5 effectively utilizes the space within the fresh air fan 6, reducing the total axial dimension of the assembled second motor 5 and fresh air fan 6, thereby reducing the axial dimension of the bidirectional ventilation assembly.

[0237] In some embodiments, as Figure 8 、 Figure 11 and Figure 14 As shown, the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72 . The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71 , and the exhaust blades 72 extend along the axial direction of the exhaust wheel disc 71 in a direction away from the fresh air fan 6 .

[0238] In some embodiments, as Figure 8 、 Figure 14-16As shown, the fresh air volute 8 forms a volute cavity V011, a fresh air cavity V012, and an axial vent 8211. The volute cavity V011 is located between the fresh air cavity V012 and the exhaust volute 9, and the two cavities are connected via the axial vent 8211. The stator 51, rotor 52, and motor housing 53 are mounted within the volute cavity V011. Outdoor air first enters the fresh air cavity V012, where it is buffered before entering the volute cavity V011 through the axial vent 8211 and reaching the second motor 5. This prevents outdoor air entering the fresh air volute 8 through the fresh air inlet 801 from directly impacting the second motor 5. The provision of the fresh air cavity V012 helps reduce abnormal noise from the second motor 5.

[0239] In some embodiments, as Figure 8 、 Figure 14-16 As shown, wall-mounted air conditioner 10000 further includes a purification element 11, which is disposed within fresh air duct V01 and is used to purify incoming fresh air, thereby improving the cleanliness of the indoor air. Purification element 11 is located at the axial air inlet end of fresh air fan 6. Rotation of fresh air fan 6 causes outdoor air to enter fresh air volute 8 through fresh air inlet 801. Furthermore, the outdoor air entering fresh air volute 8 is blown through purification element 11 before entering the room through fresh air outlet 802.

[0240] For example, the purification component 11 is installed in the fresh air cavity V012, and the purification component 11 is connected to the fresh air volute 8. The rotation of the fresh air fan 6 can allow outdoor air to enter the fresh air cavity V012 from the fresh air inlet 801, and can allow the outdoor air entering the fresh air cavity V012 to blow through the purification component 11, and then enter the volute cavity V011 from the axial vent 8211, and then enter the room from the fresh air outlet 802. Therefore, in the air circulation path, the second motor 5 is fixed on the downstream side of the purification component 11. The outdoor air entering the fresh air chamber V012 from the fresh air inlet 801 passes through the purification component 11, and the dust is filtered by the purification component 11. Then this part of the air enters the volute chamber V011 through the axial ventilation port 8211 and reaches the second motor 5. The setting of the purification component 11 improves the working environment of the second motor 5. The purification component 11 can prevent dust from entering the second motor 5, so that the second motor 5 will not be stuck due to dust, which is beneficial to reduce the probability of failure of the second motor 5 and extend the service life of the second motor 5.

[0241] The fresh air can flow almost vertically through the purification element 11, further reducing fresh air intake consumption and increasing fresh air volume. Furthermore, when the indoor heat exchanger 2 is in cooling mode, causing condensation in the fresh air, the condensation can remain on the purification element 11 as the air flows through it, further preventing the fresh air device from blowing water when discharging air.

[0242] In the related art, the main body and motor housing of the second motor are arranged in the exhaust volute. When the indoor air enters the exhaust duct from the exhaust air inlet, it may carry a lot of moisture and blow directly toward the second motor. The condensed water in the indoor air will directly corrode the second motor, resulting in a reduction in the service life of the second motor. In this embodiment, the main body and motor housing 53 of the second motor 5 are arranged in the fresh air volute 8, and in the air circulation path, the second motor 5 is fixed on the downstream side of the purification component 11. In this way, after the outdoor air entering the fresh air cavity V012 from the fresh air inlet 801 passes through the purification component 11, the condensed water carried by the outdoor air can remain on the purification component 11, thereby ensuring that the air reaching the second motor 5 is relatively dry. The purification component 11 can prevent moisture from entering the second motor 5.

[0243] Reference Figure 2 、 Figure 5-Figure 8 and Figure 15 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.

[0244] Reference Figure 2 、 Figure 5-Figure 8 and Figure 15 The fresh air volute 8 includes: a second volute 82, which 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.

[0245] In some embodiments, the purification element 11 is connected to the second volute 82 , which facilitates the assembly of the purification element 11 and prevents it from interfering with the fresh air fan 6 .

[0246] Reference Figure 8 and Figure 14 The first volute 81 includes a first volute end plate 811 and a first volute enclosure 812 . The first volute enclosure 812 is formed along the edge of the first volute end plate 811 and extends in a direction away from the exhaust fan 7 .

[0247] Reference Figure 8 and Figure 14 A through-hole 814 is provided at the center of the first volute end plate 811 . The output shaft 532 is connected to the exhaust fan 7 through the through-hole 814 .

[0248] In some embodiments, the fresh air volute 8 is axially divided into at least a first volute 81 and a second volute 82, which are processed separately to reduce the difficulty of manufacturing and assembly. Moreover, the quality control of such a complex housing is facilitated after the 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 facilitates assembly and subsequent adjustment and maintenance.

[0249] In some embodiments, as Figure 8 、 Figure 14-15 As shown, the purification element 11 includes a filter 111, which is covered at the axial vent 8211. The filter 111 covers the entire air inlet end of the fresh air fan 6. The filter 111 has a large coverage area, a large filtering area, and a good filtering effect. The provision of the filter 111 helps to ensure sufficient contact area with the passing air, and is lightweight and has low wind noise. For example, the filter 111 is a HEPA mesh, so it has a strong adsorption force and a strong filtering effect on dust in the air. The second motor 5 is fixed on the downstream side of the filter 111. After the outdoor air entering the fresh air chamber V012 passes through the filter 111, the dust is filtered by the filter 111. Then this part of the air enters the volute chamber V011 through the axial vent 8211 and reaches the second motor 5. The provision of the filter 111 improves the working environment of the second motor 5, and the second motor 5 will not be stuck due to dust, which is conducive to reducing the probability of failure of the second motor 5 and extending the service life of the second motor 5.

[0250] For example, the filter 111 is in the shape of a plate, so that the filter 111 is thin as a whole and does not occupy an excessively thick size when placed in the two-way ventilation component.

[0251] For example, the filter 111 is square, which makes it easier to position and install the filter 111 .

[0252] In some embodiments, the filter 111 is a square mesh, with the side length of the filter 111 being greater than the diameter of the axial vent 8211. This square mesh facilitates positioning during installation, resists shaking once secured, and is easy to process, resulting in minimal processing waste. By making the side length of the filter 111 greater than the diameter of the axial vent 8211, all fresh air entering the axial vent 8211 can flow through the filter 111, resulting in high filtration cleanliness.

[0253] In some embodiments, reference Figure 5 、 Figure 8 and Figure 14-15The second volute 82 includes a second volute half 821. The second volute half 821 is located on a side of the first volute 81 away from the exhaust fan 7. The second volute half 821 is located on a side of the first volute 81 facing the heat exchange fan 41. The second volute half 821 is detachably connected to the first volute 81. An axial vent 8211 is provided on 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, and the axial air inlet end of the fresh air fan 6 is arranged toward the axial vent 8211.

[0254] In some embodiments, reference Figure 5 、 Figure 8 and Figure 14-15 The second volute half 821 and the first volute 81 together define a fresh air outlet 802 .

[0255] In some embodiments, reference Figure 5 、 Figure 8 and Figure 15 The second volute 82 includes a fan cover 822, which is located on the side of the second volute half 821 away from the exhaust fan 7. 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 is detachably connected to the second volute half 821. Figure 8 The cavity enclosed by the fan cover 822 and the second volute half 821 is the fresh air cavity V012.

[0256] In some embodiments, reference Figure 5 、 Figure 8 and Figure 15 The fan cover 822 and the second volute half 821 surround the fresh air inlet 801.

[0257] After such arrangement, a fresh air cavity V012 is formed at the air inlet end of the fresh air fan 6. The fresh air cavity V012 formed in this way can cover the axial air inlet end of the fresh air fan 6. The fresh air cavity V012 can be used to accommodate air, so that the air can enter the fresh air fan 6 vertically along the axial direction from the fresh air cavity V012, thereby improving the air suction efficiency of the fresh air fan 6 and reducing the air suction loss.

[0258] For example, the fan cover 822 is located on the side of the second volute half 821 facing the indoor heat exchanger 2. This effectively separates the volute chamber V011 from the indoor heat exchanger 2. When the indoor heat exchanger 2 is cooling, it absorbs heat from the fresh air chamber V012, lowering the fresh air temperature. However, due to the spacing provided by the fan cover 822, the distance between the indoor heat exchanger 2 and the volute chamber V011 is greater, reducing the cooling capacity generated by the indoor heat exchanger 2 and the ability to lower the air temperature within the volute chamber V011. This reduces the likelihood of the air in the volute chamber V011 being overcooled and condensed.

[0259] In this way, even if the inhaled fresh air is cooled, it will not be overcooled to produce condensed water. Moreover, when condensed water is produced in the fresh air chamber V012, the condensed water is likely to remain in the fresh air chamber V012 and is not easy to enter the volute chamber V011 and then blow into the room, thus avoiding the situation where the fresh air device produces water. When the indoor heat exchanger 2 is heating, the indoor heat exchanger 2 can absorb the cold air in the fresh air chamber V012 to increase the temperature of the fresh air. The heated air then enters the volute chamber V011 and is fully mixed, so that the hot air blown out from the fresh air device is milder. In some embodiments, refer to Figure 8 A portion of the fresh air cavity V012 constitutes an empty cavity V0121 . The cavity V0121 is located on a side of the purification element 11 away from the fresh air fan 6 . The fresh air inlet 801 is connected to the cavity V0121 .

[0260] For example, a purification component 11 is arranged in the fresh air cavity V012 near the fresh air fan 6, and the part of the fresh air cavity V012 away from the fresh air fan 6 is a cavity V0121, that is, the cavity V0121 is between the oncoming wind of the purification component 11 and the inner surface of the fan cover 822. In this way, when the fresh air fan 6 is running, the cavity V0121 is in a negative pressure state, so that the airflow can automatically flow into the cavity V0121 from the fresh air inlet 801, thereby reducing the air flow resistance.

[0261] Cavity V0121 is equivalent to the air inlet negative pressure chamber of the fresh air fan 6. The setting of the air inlet negative pressure chamber has many advantages:

[0262] 1. Improved air intake efficiency. For example, by providing a negative pressure chamber, the buffer space on the intake side of the fresh air fan 6 is increased, making it easier for the fresh air fan 6 to draw air, thereby increasing the air intake volume of the fresh air fan 6. Furthermore, the presence of the negative pressure chamber buffers and adjusts the fresh air in the negative pressure chamber before entering the fresh air fan 6, reducing fluctuations and turbulence in the fresh air flow and improving the air intake stability of the fresh air fan 6. Without cavity V0121 and the lack of buffer space, flow resistance increases, and the operating power consumption of the fresh air fan 6 will also increase.

[0263] 2. Optimizing airflow distribution: For example, the buffering and guiding of the negative pressure chamber can help guide the airflow axially into the fresh air fan 6.

[0264] 3. Reduce airflow impact and absorb noise.

[0265] In this way, while increasing the air intake volume of the fresh air device, it is beneficial to improve the overall air intake reliability and stability.

[0266] In some embodiments, reference Figure 4-Figure 6 、 Figure 8As shown, the fresh air volute 8 is further provided with an installation port 803, and the purification element 11 can be detachably assembled in the installation port 803. This makes it convenient to disassemble the purification element 11 when the purification element 11 is damaged or saturated, so as to facilitate maintenance or replacement.

[0267] For example, Figure 8 、 Figure 15 As shown, the mounting opening 803 is formed between the fan shroud 822 and the second volute half 821. The purification element 11 is removably mounted within the fresh air chamber V012 through the mounting opening 803. This allows for a larger mounting opening 803, facilitating the installation of larger purification elements 11. When the mounting opening 803 is larger, it is formed by the fan shroud 822 and the second volute half 821. The fan shroud 822 and the second volute half 821 each have an open half-opening, facilitating processing and demolding, and minimizing the scrap rate.

[0268] For example, Figure 3 As shown, the mounting opening 803 is located on the front side of the main body 1000 in the front-to-back direction. When the purification element 11 is removed, it can be free from interference with the pipes connected to the fresh air inlet 801 and the exhaust outlet 902, thus facilitating removal. For example, a retractable panel (not shown) is provided on the front side of the housing 1. When the panel is opened or rotated upward, the mounting opening 803 is exposed, facilitating removal of the purification element 11.

[0269] It is also possible that in some solutions, the installation port 803 is set at the bottom of the main body 1000.

[0270] In some embodiments, to make the wall-mounted air conditioner 10000 more reliable, the dimensions of the main body 1000 are strictly controlled. This not only minimizes the gaps between internal components and prevents them from loosening, but also allows for shorter air ducts, reducing the size of the housing 1 and thus reducing the overall weight of the main body 1000, making it appear thinner and lighter.

[0271] In some embodiments, reference Figure 8 、 Figure 14 The exhaust volute 9 and the fresh air volute 8 are connected, sharing a first volute end plate 811. The first volute end plate 811 also separates the fresh air duct V01 from the exhaust duct V02. This arrangement eliminates the need for a gap between the exhaust volute 9 and the fresh air volute 8, further reducing the axial dimension of the two-way ventilation assembly and the space it occupies within the wall-mounted air conditioner 10000, contributing to the overall slimmer design of the wall-mounted air conditioner 10000.

[0272] 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.

[0273] In some embodiments, reference Figure 8 、 Figure 11 and Figure 14 The exhaust fan 7 includes: an exhaust disc 71 and exhaust blades 72. The exhaust disc 71 is coaxially arranged with the second motor 5, and the exhaust disc 71 is connected to the output shaft 532 of the second motor 5. There are multiple exhaust blades 72, and the exhaust blades 72 are arranged on the exhaust disc 71. The exhaust blades 72 only extend in the direction away from the fresh air fan 6. The multiple exhaust blades 72 are arranged on the exhaust disc 71 along the circumference of the exhaust disc 71. For example, the exhaust fan 7 includes a single layer of centrifugal blades, so that the exhaust fan 7 has a simple structure and low cost when meeting a small air volume. Moreover, the blade cylinder formed by the exhaust blades 72 arranged along the circumference of the exhaust disc 71 is open on the side facing the axial air inlet end, which facilitates the inhalation of air flow, reduces the wind resistance of suction, and ensures the air intake of exhaust.

[0274] In some embodiments, as Figure 6 、 Figure 15 As shown, the fresh air volute 8 is formed with a purified air inlet 804 for communicating with the room. 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.

[0275] For example, the rotation of the fresh air fan 6 allows indoor air to enter the fresh air chamber V012 from the purified air inlet 804 to be purified by the purification element 11, and allows the indoor air entering the fresh air chamber V012 to enter the volute chamber V011 from the axial vent 8211 and then enter the room from the fresh air outlet 802. In the air circulation path, the second motor 5 is fixed on the downstream side of the purification element 11. After the indoor air enters the fresh air chamber V012 from the purified air inlet 804 and passes through the purification element 11, dust is filtered by the purification element 11. Then, this part of the air enters the volute chamber V011 through the axial vent 8211 and reaches the second motor 5. The provision of the purification element 11 improves the working environment of the second motor 5, prevents the second motor 5 from being stuck due to dust, and helps reduce the probability of failure of the second motor 5 and extend the service life of the second motor 5.

[0276] This setup allows for the indoor air to circulate and purify when it becomes polluted. This purifies the indoor air, improving cleanliness, without the need for fresh air. Because no fresh air is introduced, the indoor air purification process prevents sudden influx of unheated cold or hot air from outside, preventing discomfort caused by sudden changes in indoor temperature.

[0277] In some embodiments, the accommodating cavity V1 in the housing 1 forms a first chamber and a second chamber in the accommodating cavity V1 through internal structure coordination.

[0278] like Figure 18-19 In some of the illustrated embodiments, an end plate 31 is provided on the base 3 adjacent to the exhaust volute 9. The heat exchange fan 41 and the indoor heat exchanger 2 are located on one side of the end plate 31, and the exhaust volute 9 with the exhaust air inlet 901 is located on the other side of the end plate 31. The end plate 31 separates the accommodating chamber V1 into a first chamber and a second chamber.

[0279] The arrangement of the first chamber and the second chamber here can also be directly formed by the casing 1 in other embodiments. For example, a wind-isolating structure is integrally formed in the casing 1 to separate the accommodating chamber V1 into the first chamber and the second chamber.

[0280] At this time, at least part of the second motor 5, the exhaust fan 7, the exhaust volute 9, and the fresh air volute 8 are located in the second chamber. For example, the first chamber and the second chamber are separated by an air-isolating structure, and the purification air inlet 804 and the exhaust air inlet 901 are located on the same side of the air-isolating structure. The rotation of the fresh air fan 6 can allow the indoor air to enter the second chamber from the heat exchange air inlet 101, and then enter the fresh air volute 8 from the purification air inlet 804 to be purified by the purification component 11, and can allow the indoor air entering the fresh air volute 8 to enter the room from the fresh air outlet 802. In this way, the purification air inlet 804 can be hidden in the second chamber, improving the appearance of the wall-mounted air conditioner 10000. Moreover, there is no need to connect the purification air inlet 804 and the heat exchange air inlet 101 with a physical pipe, which reduces the number of parts, reduces the occupied volume, and facilitates layout. For example, Figure 6 As shown, the purified air inlet 804 is located at the bottom of the fresh air volute 8 and is set downward.

[0281] In some embodiments, the fresh air inlet 801 is located below the main body 1000. Both the fresh air inlet 801 and the purified air inlet 804 are located at the bottom of the fresh air volute 8 and extend downward, facilitating processing and molding. Furthermore, during use, either the fresh air inlet 801 or the purified air inlet 804 can be opened. Placing both the fresh air inlet 801 and the purified air inlet 804 at the bottom of the fresh air volute 8 facilitates centralized switch placement to select one of the air inlets to open, reducing the number of switches.

[0282] In some embodiments, as Figure 6As shown, the air inlet direction of the purified air inlet 804 is perpendicular to the length of the heat exchange fan 41. It will be appreciated that by aligning the air inlet direction of the purified air inlet 804 with the length of the heat exchange fan 41, the suction area of ​​the purified air inlet 804 is further away from the exhaust air inlet 901, thus avoiding excessive suction energy consumption caused by the purified air inlet 804 being too close to the exhaust air inlet 901. Furthermore, the different directions of the purified air inlet 804 and the exhaust air inlet 901 help expand the negative pressure area, allowing a larger amount of indoor air to flow into the negative pressure area, thereby ensuring the exhaust and indoor fresh air volume.

[0283] In some embodiments, as Figure 5 、 Figure 8 、 Figure 14 、 Figure 17 As shown, the exhaust volute 9 includes an air guide ring 91, and the area surrounded by the air guide ring 91 forms an exhaust air inlet 901. The arrangement of the air guide ring 91 can effectively collect scattered airflow, converge it into a more concentrated airflow, and send it to the exhaust fan 7, making the air intake smoother and more efficient, and increasing the air intake volume of the exhaust fan 7.

[0284] Furthermore, by rationally designing the shape and angle of the air guide ring 91, airflow enters the exhaust blades 72 of the exhaust fan 7 at an optimal angle, improving the efficiency of the exhaust fan 7. When unstable airflow fluctuates during inhalation, the air guide ring 91 stabilizes the airflow, reducing turbulence and fluctuations, enabling the exhaust fan 7 to operate more smoothly. This reduces noise and vibration, extending the service life of the exhaust fan 7.

[0285] For example, the air guide ring 91 is in a circular tube shape, which is easy to process.

[0286] For example, the diameter of the air guide ring 91 decreases in the direction toward the fresh air fan 6, and the diameter of the air guide ring 91 decreases in the direction toward the exhaust fan 7. As the diameter of the air guide ring 91 decreases, the passage of air becomes narrower when flowing through the air guide ring 91. According to the principles of fluid mechanics, at the same flow rate, the narrowing of the passage will increase the air flow speed, thereby increasing the wind speed and the air volume. The air guide ring 91 with a reduced diameter is also beneficial for concentrating the more dispersed air volume upstream, so that the air flow blows directly to the center of the exhaust fan 7. After the wind is gathered, it is more labor-saving when it is driven radially by the exhaust blades 72, and the gathered airflow is also beneficial to the stability of the airflow.

[0287] For example, Figure 8 As shown, the exhaust fan 7 includes an exhaust disc 71 and exhaust blades 72. The exhaust disc 71 is connected to the output shaft 532 of the second motor 5. The exhaust blades 72 are connected to the side of the exhaust disc 71 away from the fresh air fan 6. A plurality of exhaust blades 72 are arranged along the circumference of the exhaust disc 71.

[0288] like Figure 8 、 Figure 11 、 Figure 17 As shown, the edge of the exhaust blade 72 away from the exhaust disc 71 is a blade side edge 721, and at least a portion of the blade side edge 721 is a gradient section 7212. In the radially inward direction of the exhaust fan 7, the distance between the gradient section 7212 and the exhaust disc 71 decreases, and all exhaust blades 72 form a side edge recess 73 at the gradient section 7212. The end of the air guide ring 91 is located in the side edge recess 73.

[0289] For example, the exhaust blades 72 of the exhaust fan 7 are concave blades, and the air guide ring 91 and the concave blades are both recessed toward the fresh air fan 6, with the air guide ring 91 partially entering the side edge recess 73 formed by the concave blades. This arrangement allows the air guide ring 91 and the exhaust fan 7 to partially overlap in the axial direction, and the axial dimension of the exhaust volute 9 does not need to be increased while providing the air guide ring 91.

[0290] Moreover, after the exhaust fan 7 rotates, the surface swept by the exhaust blade 72 in the gradient section 7212 forms a funnel surface with a reduced diameter, which is conducive to the concentration of air flow to the center and reduces the energy loss caused by air flow disturbance.

[0291] In some embodiments, as Figure 17 As shown, the blade side edge 721 may include a straight section 7211, which is perpendicular to the axis of the exhaust fan 7 and connected to the end of the gradient section 7212 away from the axis of the exhaust fan 7. For example, the exhaust blade 72 has a larger axial dimension near the outer edge, which can fully utilize the space within the exhaust duct V02 to drive the airflow, thereby helping the airflow to obtain greater kinetic energy.

[0292] For example, the gradient section 7212 and the straight section 7211 are connected by a circular arc transition, and the gradient section 7212 and the surface of the exhaust disk 71 are also connected by a circular arc transition. This reduces stress concentration and the risk of fracture at the junctions between the gradient section 7212 and the straight section 7211, and between the gradient section 7212 and the surface of the exhaust disk 71. Furthermore, the circular arc transition between the gradient section 7212 and the surface of the exhaust disk 71 allows the transition to directly face the end of the air guide ring 91, reducing the risk of scratching.

[0293] 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 caused by the sweeping of individual exhaust blades 72 with inconsistent shapes is avoided, thereby improving the stability of the airflow.

[0294] In some embodiments, as Figure 8 、 Figure 14 、 Figure 16As shown, wall-mounted air conditioner 10000 may include a fixing bracket 17, which is disposed on second volute half 821 and located at axial vent 8211. In other words, fixing bracket 17 is provided at axial vent 8211 and is used to fix second motor 5. This fixation of second motor 5 minimizes the axial spacing from fresh air fan 6 and exhaust fan 7, minimizing the bending moment exerted on second motor 5 during operation and facilitating smoother rotation of fresh air fan 6 and exhaust fan 7.

[0295] For example, Figure 8 、 Figure 16 As shown, the fixed bracket 17 includes a bracket end plate 171 and a bracket enclosure 172. The bracket enclosure 172 extends along the edge of the bracket end plate 171 toward the fresh air fan 6. The bracket end plate 171 is disposed on the second volute half 821. A mounting cavity 174 is defined between the bracket enclosure 172 and the bracket end plate 171. A portion of the second motor 5 is accommodated within 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, both the bracket end plate 171 and the bracket enclosure 172 can support the second motor 5, thereby improving the mounting security of the second motor 5, but also the mounting cavity 174 can protect the electronic connector at the end of the second motor 5.

[0296] In some embodiments, at least one of the fresh air fan 6 and the exhaust fan 7 includes: a wheel disc and blades, the blades are connected to the wheel disc, and a transition fillet structure is provided at the connection between the blades and the wheel disc.

[0297] For example, exhaust fan 7 includes an exhaust disc 71 and exhaust blades 72. Exhaust blades 72 are connected to the side of exhaust disc 71 away from heat exchange fan 41. Exhaust blades 72 are multiple and arranged circumferentially. A transition fillet structure is provided at the connection between exhaust blades 72 and exhaust disc 71. This reduces concentrated stress at the connection between exhaust blades 72 and exhaust disc 71, improving overall strength. Furthermore, when airflow flows axially toward exhaust disc 71, it is guided by the transition fillet structure driven by the pressure difference, resulting in less turbulence when the airflow turns, thereby reducing energy consumption.

[0298] For example, the fresh air fan 6 includes a fresh air disc 61 and fresh air blades 62. The fresh air blades 62 are connected to the fresh air disc 61. The fresh air blades 62 are multiple and arranged along the circumference. A transition fillet structure is provided at the connection between the fresh air blades 62 and the fresh air disc 61. This can reduce the concentrated stress at the connection between the fresh air blades 62 and the fresh air disc 61 and improve the overall strength. In addition, when the airflow flows axially toward the fresh air disc 61, the airflow can be guided by the transition fillet structure under the pressure difference, flowing more smoothly to the fresh air blades 62, thereby helping to reduce energy consumption.

[0299] In some embodiments, the housing V1 within the housing 1 is configured to form a first chamber and a second chamber through internal structural coordination. The indoor heat exchanger 2 and heat exchange fan 41 are located within the first chamber, and the bidirectional ventilation assembly is at least partially located within the second chamber. The heat exchange inlet 101 and heat exchange outlet 102 on the housing 1 are positioned corresponding to the first chamber. The housing 1 may also be provided with a housing outlet 105 that communicates with the second chamber.

[0300] The rotation of the exhaust fan 7 allows the indoor air to enter the first chamber from the heat exchange air inlet 101 , and the air in the first chamber can further enter the second chamber and then enter the exhaust volute 9 from the exhaust air inlet 901 .

[0301] In some embodiments, as Figure 18 As shown, the base 3 comprises a first frame 301 and a second frame 302, arranged in sequence along the length of the heat exchange fan 41. The end plate 31 is located between the first and second frames 301 and 302. The volute duct V03 is formed on the first frame 301. The indoor heat exchanger 2 and heat exchange fan 41 are mounted on the first frame 301, while the fresh air volute 8 and exhaust air volute 9 are mounted on the second frame 302. For example, the two-way air exchange assembly is also mounted on the base 3. Supported by the base 3, the structure maintains a strong integrity and helps prevent excessive vibration caused by loose components.

[0302] For example, Figure 18 As shown, the bottom of the second frame 302 is provided with a mating opening 3021. The lower ends of the fresh air volute 8 and the exhaust volute 9 are located at the mating opening 3021. The mating opening 3021 can be used to install a pipe connecting the fresh air volute 8 and the exhaust volute 9. This not only greatly reduces the weight of the second frame 302, but also improves the impact and vibration resistance by utilizing the lower portions of the fresh air volute 8 and the exhaust volute 9 enclosed by the second frame 302.

[0303] In some embodiments, combined Figure 2 and Figure 4 As shown, the wall-mounted air conditioner 10000 may include an electrical control box 13, which is located at one lateral end of the heat exchange fan 41, and a two-way ventilation assembly is located at the other lateral end of the heat exchange fan 41. For example, if the two-way ventilation assembly and the electrical control box 13 are located at the lateral ends of the heat exchange fan 41, the operation of the two-way ventilation assembly will have little interference with the electrical control box 13.

[0304] In some embodiments, the wall-mounted air conditioner 10000 may include an electrical control box 13. The electrical control box 13 and the two-way ventilation assembly are located at the same lateral end of the heat exchange fan 41, with the electrical control box 13 located on top of the two-way ventilation assembly. This arrangement further facilitates controlling the length of the wall-mounted air conditioner 10000.

[0305] In some embodiments, reference Figure 8 、 Figure 14 and Figure 15 As shown, the exhaust volute 9 includes an exhaust volute end plate 907, which is located on the side of the exhaust fan 7 facing away from the heat exchange fan 7. The exhaust air inlet 901 is opened on the exhaust volute end plate 907. The exhaust volute end plate 907 can protect the side of the exhaust fan 7 facing away from the heat exchange fan 7. The exhaust air inlet 901 allows indoor air to enter the exhaust volute 9.

[0306] In some embodiments, reference Figure 8 、 Figure 14 and Figure 15 As shown, the exhaust volute 9 also includes an exhaust volute panel 906. The exhaust volute panel 906 extends along the edge of the exhaust volute end plate 907 toward the direction of the heat exchange fan 41. The exhaust volute panel 906 surrounds the radially outer side of the exhaust fan 7. The exhaust volute panel 906 can protect the radially outer side of the exhaust fan 7. The exhaust volute panel 906 is detachably connected to the first volute 81. When the exhaust volute panel 906 is disassembled from the first volute 81, it is convenient to install the exhaust fan 7. After the exhaust fan 7 is installed on the output shaft 532 of the second motor 5, the exhaust volute panel 906 is connected to the first volute 81 so that the exhaust volute 9 protects the exhaust fan 7.

[0307] In some embodiments, reference Figure 6 、 Figure 14 and Figure 15 As shown, the exhaust volute 9 further includes a bypass duct 908, which is adapted to be connected to at least one of the exhaust volute end plate 907 and the exhaust volute enclosure 906. One end of the bypass duct 908 is connected to the exhaust duct V02, and the other end of the bypass duct 908 is connected to the fresh air inlet 801. Thus, when the exhaust fan 7 rotates, indoor air is drawn into the exhaust duct V02 through the exhaust inlet 901, and the air in the exhaust duct V02 can be discharged to the fresh air inlet 801 through the bypass duct 908. When the fresh air fan rotates, the air at the fresh air inlet 801 can enter the fresh air duct V01, and the air in the fresh air duct V01 can further enter the room through the fresh air outlet 802, thereby reusing the air inside the exhaust volute 9 and recycling the indoor air.

[0308] In some embodiments, reference Figure 6 and Figure 15As shown, the second volute half 821 is provided with a side inlet 8212, and the side inlet 908 is connected to the fresh air inlet 801 through the side inlet 8212. Thus, when the exhaust fan 7 rotates, the air in the exhaust duct V02 can be discharged through the side inlet 8212 via the side inlet 908. The side inlet 8212 is connected to the fresh air inlet 801, and thus the air in the exhaust duct V02 can be discharged to the fresh air inlet 801 through the side inlet 8212.

[0309] In some embodiments, reference Figure 6-Figure 7 、 Figure 14 and Figure 15 As shown, the wall-mounted air conditioner 10000 also includes a fresh air valve 122, which is mounted inside the fresh air volute 8. The side inlet 8212 is located on the side of the fresh air valve 122 facing away from the purification element 11. The fresh air valve 122 is used to open or close the passage between the side inlet 8212 and the fresh air chamber V012. When the fresh air valve 122 closes the passage between the side inlet 8212 and the fresh air chamber V012, air at the fresh air inlet 801 and the side inlet 8212 cannot enter the fresh air chamber V012, and air in the fresh air volute 8 cannot be discharged outdoors through the fresh air inlet 801. By controlling the state of the fresh air valve 122, the passage between the side inlet 8212 and the fresh air chamber V012 can be opened or closed.

[0310] By installing the fresh air valve 122 inside the fresh air volute 8, the components outside the fresh air volute 8 do not need to consider avoiding the fresh air valve 122, and the opening and closing actions of the fresh air valve 122 will not touch the components outside the fresh air volute 8, and the fresh air volute 8 has a protective effect on the fresh air valve 122, which is beneficial to extending the service life of the fresh air valve 122.

[0311] In some embodiments, reference Figure 6 、 Figure 14 and Figure 15 As shown, the fresh air valve 122 opens the passage between the side inlet 8212 and the fresh air chamber V012, and the fresh air fan 6 rotates to allow outdoor air to enter the fresh air volute 8 from the fresh air inlet 801, and the indoor air in the exhaust volute 9 to enter the fresh air volute 8 from the side inlet duct 908 and the side inlet 8212, and the air in the fresh air volute 8 to enter the room from the fresh air outlet 802. This can increase the amount of air entering the fresh air volute 8, thereby increasing the amount of air entering the room and improving the efficiency of fresh air introduction into the room.

[0312] Specifically, the fresh air volute 8 forms a volute cavity V011, a fresh air cavity V012, and an axial vent 8211. The volute cavity V011 is located between the fresh air cavity V012 and the exhaust volute 9. The volute cavity V011 and the fresh air cavity V012 are connected through the axial vent 8211. The fresh air fan 6, the stator portion 51, the rotor portion 52, and the motor housing 53 are installed in the volute cavity V011. The purification element 11 is installed in the fresh air cavity V012. The rotation of the fresh air fan 6 can cause outdoor air to enter the fresh air cavity V012 from the fresh air inlet 801, cause indoor air in the exhaust volute 9 to enter the fresh air cavity V012 from the side duct 908 and the side vent 8212, and cause the outdoor air entering the fresh air cavity V012 to be blown through the purification element 11, then enter the volute cavity V011 from the axial vent 8211, and then enter the room through the fresh air outlet 802.

[0313] In some embodiments, reference Figure 14 and Figure 15 As shown, the wall-mounted air conditioner 10000 further includes an exhaust valve 152, which is installed inside the exhaust volute 9. The exhaust valve 152 is used to open or close the exhaust outlet 902. When the exhaust valve 152 closes the exhaust outlet 902, the indoor air in the exhaust volute 9 cannot be discharged to the outside through the exhaust outlet 902, and the outdoor air cannot directly enter the room through the exhaust outlet 902. By controlling the state of the exhaust valve 152, the exhaust outlet 902 can be opened or closed.

[0314] By installing the exhaust valve 152 inside the exhaust volute 9, the components outside the exhaust volute 9 do not need to consider avoiding the exhaust valve 152. The action of the exhaust valve 152 opening and closing the exhaust air inlet 901 will not touch the components outside the exhaust volute 9, and the exhaust volute 9 has a protective effect on the exhaust valve 152, which is beneficial to extending the service life of the exhaust valve 152.

[0315] In some embodiments, reference Figure 14 and Figure 15 As shown, the connection point between the bypass duct 908 and the exhaust duct V02 is located on the side of the exhaust valve 152 close to the exhaust fan 7. In other words, the opening or closing of the exhaust valve 152 on the exhaust outlet 902 does not affect the connection between the bypass duct 908 and the exhaust duct V02. When the exhaust fan 7 rotates, the air in the exhaust duct V02 can always reach the bypass port 8212 through the bypass duct 908 and then reach the fresh air inlet 801. In some embodiments, refer to Figure 14 and Figure 15As shown, when the exhaust valve 152 opens the exhaust outlet 902 and the exhaust fan 7 rotates, indoor air can enter the exhaust volute 9 from the exhaust inlet 901, and the indoor air entering the exhaust volute 9 can be discharged to the outside through the exhaust outlet 902 and discharged to the fresh air inlet 801 through the bypass duct 908 and the bypass port 8212. When the exhaust valve 152 closes the exhaust outlet 902 and the exhaust fan 7 rotates, indoor air can enter the exhaust volute 9 from the exhaust inlet 901, and the indoor air entering the exhaust volute 9 can be discharged to the fresh air inlet 801 through the bypass duct 908 and the bypass port 8212, but cannot be discharged to the outside through the exhaust outlet 902.

[0316] In some embodiments, reference Figure 6 and Figure 15 As shown, the fresh air volute 8 is formed with a purified air inlet 804 for communicating with the room. When the purified air inlet 804 is opened and the fresh air fan 6 rotates, indoor air can enter the fresh air volute 8 from the purified air inlet 804, and the indoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802. Specifically, the purified air inlet 804 is connected to the fresh air cavity V012. When the purified air inlet 804 is opened and the fresh air fan 6 rotates, indoor air can enter the fresh air cavity V012 from the purified air inlet 804, and the indoor air entering the fresh air cavity V012 can enter the room from the fresh air outlet 802.

[0317] In some embodiments, the purified air inlet 804 and the fresh air inlet 801 are spaced apart and arranged in a direction perpendicular to the axis of the second motor 5, the air inlet direction of the purified air inlet 804 is consistent with that of the fresh air inlet 801, and the fresh air valve 122 is suitable for translating in a direction perpendicular to the axis of the second motor 5 to open or close the purified air inlet 804.

[0318] In some embodiments, the wall-mounted air conditioner 10000 includes a purge valve, a fresh air valve 122, and an exhaust valve 152. The purge valve and fresh air valve 122 are both mounted inside the fresh air volute 8, while the exhaust valve 152 is mounted inside the exhaust volute 9. The purge valve is used to open or close the purge air inlet 804, the fresh air valve 122 is used to open or close the passage between the bypass port 8212 and the fresh air chamber V012, and the exhaust valve 152 is used to open or close the exhaust air outlet 902. In this way, the valves do not interfere with each other. When the purification valve opens the purified air inlet 804 and the fresh air valve 122 opens the passage between the side inlet 8212 and the fresh air chamber V012, the fresh air fan 6 rotates to allow outdoor air to enter the fresh air chamber V012 from the fresh air inlet 801, the indoor air in the exhaust volute 9 to enter the fresh air chamber V012 from the side inlet duct 908 and the side inlet 8212, and the indoor air to enter the fresh air chamber V012 from the purified air inlet 804. Furthermore, the outdoor air entering the fresh air chamber V012 is blown through the purification element 11, then enters the volute chamber V011 from the axial vent 8211, and finally enters the room from the fresh air outlet 802. Thus, the air volume entering the fresh air volute 8 is increased, thereby significantly increasing the air volume entering the room and improving the efficiency of introducing fresh air into the room.

[0319] For example, the purge valve opens or closes the purge air inlet 804 in a rotating manner.

[0320] For example, the purge valve opens or closes the purge air inlet 804 in a translational manner.

[0321] For example, the fresh air valve 122 opens or closes the passage between the side inlet 8212 and the fresh air chamber V012 in a rotational manner.

[0322] For example, the fresh air valve 122 opens or closes the passage between the side inlet 8212 and the fresh air chamber V012 in a translational manner.

[0323] For example, the exhaust valve 152 opens or closes the exhaust outlet 902 in a rotational manner.

[0324] For example, the exhaust valve 152 opens or closes the exhaust outlet 902 in a translational manner.

[0325] When the wall-mounted air conditioner 10000 is turned off, the wall-mounted air conditioner 10000 does not work, the fresh air valve 122 closes the channel between the side inlet 8212 and the fresh air chamber V012, and the exhaust valve 152 closes the exhaust outlet 902 to prevent outdoor air from entering the room through the fresh air inlet 801 and the exhaust outlet 902, and to prevent indoor air and outdoor air from being exchanged through the two-way ventilation component.

[0326] In related technologies, people's requirements for fresh air are constantly increasing, and the demand for fresh air volume is getting bigger and bigger. Traditional air intake and exhaust modules, when introducing outdoor fresh air into the room, will also discharge indoor air to the outside, causing large fluctuations in indoor temperature and affecting user experience. When the two-way ventilation assembly of the wall-mounted air conditioner 10000 of the present application is in fresh air mode, the fresh air valve 122 opens the passage between the side inlet 8212 and the fresh air chamber V012, and the exhaust valve 152 closes the exhaust outlet 902. At this time, when the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate simultaneously, outdoor air enters the fresh air duct V01 through the fresh air inlet 801 and is then blown into the room through the fresh air outlet 802. Furthermore, indoor air is drawn into the exhaust duct V02 through the exhaust inlet 901. The air in the exhaust duct V02 can be discharged to the fresh air inlet 801 through the side inlet duct 908. When the fresh air fan rotates, the air enters the fresh air duct V01 along with the outdoor air at the fresh air inlet 801. This increases the amount of fresh air generated by the two-way ventilation assembly, refreshing the indoor air. At the same time, the indoor air cannot be discharged outdoors through the exhaust outlet 902, minimizing indoor temperature fluctuations and improving user experience.

[0327] In related technologies, people's requirements for fresh air are constantly increasing, and the demand for fresh air volume is getting greater and greater. In low or high temperature weather, such as winter and summer, after outdoor fresh air is introduced into the room, due to the large difference in indoor and outdoor air temperatures, the outdoor fresh air entering the room will cause large fluctuations in indoor temperature, affecting the user experience. When the two-way ventilation component of the wall-mounted air conditioner 10000 of the present application is in exhaust mode, the fresh air valve 122 closes the channel between the side inlet 8212 and the fresh air chamber V012, and the exhaust valve 152 opens the exhaust outlet 902. At this time, when the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate at the same time, the indoor air enters the exhaust duct V02 through the exhaust air inlet 901, and then blows to the outside through the exhaust outlet 902. The fresh air fan 6 only runs idle in the fresh air volute 8. Since the fresh air duct V01 is closed at the fresh air valve 122, the air in the fresh air duct V01 does not flow, which will reduce the operating noise of the two-way ventilation component. At the same time, the air in this room is discharged to the outside, and the air in the room is supplemented by the air in other rooms. Since the temperature difference between the air in other rooms and the air in this room is small, the indoor temperature change is small, and the user experience is better.

[0328] When the two-way ventilation assembly of wall-mounted air conditioner 10000 is in exhaust-fresh air mode, fresh air valve 122 opens the passage between side inlet 8212 and fresh air chamber V012, and exhaust valve 152 opens exhaust outlet 902. Exhaust-fresh air mode can be activated when the difference between indoor and outdoor air temperatures is small, meeting user needs in various scenarios. At this time, when the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate at the same time, the outdoor air enters the fresh air duct V01 through the fresh air inlet 801, and is then blown into the room through the fresh air outlet 802. The indoor air enters the exhaust duct V02 through the exhaust inlet 901. Part of the air in the exhaust duct V02 is then blown to the outside through the exhaust outlet 902, and the other part of the air can be discharged to the fresh air inlet 801 through the bypass pipe 908. When the fresh air fan rotates, it enters the fresh air duct V01 together with the outdoor air at the fresh air inlet 801, thereby increasing the amount of fresh air generated by the two-way ventilation component, making the indoor air fresh.

[0329] In some embodiments, reference Figure 6-Figure 7 、 Figure 14-15 As shown, the wall-mounted air conditioner 10000 further includes a fresh air valve motor 121, which is used to drive the fresh air valve 122 to move horizontally. The fresh air valve 122 and the fresh air valve motor 121 constitute a first valve assembly 12.

[0330] In some embodiments, reference Figure 6 、 Figure 15 As shown, the fresh air valve motor 121 includes a fresh air motor body 1211 and a fresh air motor shaft 1212. The fresh air motor body 1211 is mounted outside the fresh air volute 8. Thus, the fresh air motor body 1211 does not occupy the internal space of the fresh air volute 8, nor does it occupy the space of the fresh air duct V01, thereby not affecting the air volume within the fresh air duct V01. The fresh air motor shaft 1212 is rotatably mounted on the fresh air motor body 1211, at least partially extending into the interior of the fresh air volute 8, and is used to drive the fresh air valve 122 to open or close the passage between the side inlet 8212 and the fresh air chamber V012. Specifically, the fresh air motor shaft 1212 is rotatable relative to the fresh air motor body 1211. When the fresh air motor shaft 1212 rotates, it can drive the fresh air valve 122 to operate, thereby opening or closing the passage between the side inlet 8212 and the fresh air chamber V012.

[0331] In some embodiments, the fresh air valve 122 is a baffle, and the fresh air valve motor 121 is used to drive the fresh air valve 122 to move. The moving direction of the fresh air valve 122 is perpendicular to the axial direction of the second motor 5, and the axial direction of the fresh air valve motor 121 is parallel to the axial direction of the second motor 5. Figures 1-4 、 Figure 6 、 Figure 15As shown, the moving direction of the fresh air valve 122 is the front-to-back direction of the main body 1000, thereby making full use of the space of the two-way ventilation component in the front-to-back direction of the main body 1000; the axial direction of the fresh air valve motor 121 and the axial direction of the second motor 5 are both in the left-to-right direction of the main body 1000, thereby facilitating the fresh air motor shaft 1212 to drive the fresh air valve 122 to move along the front-to-back direction.

[0332] The axial direction of the fresh air valve motor 121 is perpendicular to the length extension direction of the fresh air rack 1232. In this way, when the fresh air valve motor 121 rotates, the fresh air valve motor 121 can better drive the fresh air rack 1232 to translate along the length extension direction of the fresh air rack 1232, thereby driving the fresh air valve 122 to translate synchronously.

[0333] In some embodiments, reference Figures 1-4 、 Figure 6 、 Figure 15 As shown, the air inlet 801 is in a direction perpendicular to the axis of the fresh air valve motor 121, and the movement direction of the fresh air valve 122 is perpendicular to the air inlet direction of the fresh air inlet 801. Specifically, the air inlet 801 is in a bottom-up direction, and the movement direction of the fresh air valve 122 is in a front-to-back direction of the main body 1000. In this way, the fresh air valve 122 can open or close the passage between the side inlet 8212 and the fresh air chamber V012 within the shortest possible movement distance, which is beneficial for energy saving.

[0334] In some embodiments, reference Figure 6 、 Figure 15 As shown, the wall-mounted air conditioner 10000 also includes a fresh air transmission mechanism 123, the fresh air valve motor 121 and the fresh air valve 122 are connected to each other through the fresh air transmission mechanism 123, the fresh air transmission mechanism 123 includes a fresh air gear 1231 and a fresh air rack 1232, the fresh air gear 1231 is located inside the fresh air volute 8, and the fresh air gear 1231 is coaxially arranged with the fresh air motor shaft 1212, the fresh air motor shaft 1212 drives the fresh air gear 1231 to rotate, and the fresh air rack 1232 is fixed On the fresh air valve 122, the fresh air rack 1232 is fixed on the side of the fresh air valve 122 facing the fresh air gear 1231, so that the fresh air gear 1231 and the fresh air rack 1232 are directly engaged. The length direction of the fresh air rack 1232 is perpendicular to the axial direction of the second motor 5. The fresh air gear 1231 and the fresh air rack 1232 are engaged, so that the fresh air valve motor 121 drives the fresh air valve 122 to translate in the length direction of the fresh air rack 1232 when the fresh air gear 1231 rotates.

[0335] Specifically, the length direction of the fresh air rack 1232 is the front-to-back direction of the main body 1000, and the movement direction of the fresh air valve 122 is the same as the length direction of the fresh air rack 1232. When the fresh air gear 1231 rotates, it drives the fresh air rack 1232 to move along the length direction of the fresh air rack 1232, and when the fresh air rack 1232 moves, it drives the fresh air valve 122 to move synchronously.

[0336] Optionally, the fresh air rack 1232 and the fresh air valve 122 can be connected by bolt assembly, welding, bonding, etc.; or optionally, the fresh air rack 1232 can also be integrally formed with the fresh air valve 122, which can reduce the assembly steps between the fresh air rack 1232 and the fresh air valve 122 and reduce the number of parts.

[0337] The fresh air transmission mechanism 123, which comprises a fresh air gear 1231 and a fresh air rack 1232, has a simple structure and reliable power transmission. Furthermore, the fresh air gear 1231 is directly mounted on the fresh air motor shaft 1212, eliminating the need for an intermediate transmission shaft. This simplifies the fresh air transmission mechanism 123 and reduces the number of components, space occupied, and cost.

[0338] In some embodiments, the fresh air inlet 801 is located on the second volute 82, the fresh air motor body 1211 is mounted on the second volute 82, and the fresh air motor shaft 1212 at least partially extends into the interior of the second volute 82. The fresh air motor body 1211 is located outside the second volute 82, does not occupy space within the second volute 82, and does not affect the air volume within the second volute 82. The portion of the fresh air motor shaft 1212 that extends into the interior of the second volute 82 is used to actuate the fresh air valve 122, thereby opening or closing the passage between the bypass inlet 8212 and the fresh air chamber V012.

[0339] In some embodiments, the fresh air motor body 1211 is mounted on the fan housing 822. Specifically, the fresh air motor body 1211 is mounted outside the fan housing 822, does not occupy the space inside the fan housing 822, and does not affect the air volume inside the fan housing 822. The fresh air motor shaft 1212 extends into the fan housing 822.

[0340] In some embodiments, the fresh air gear 1231 is installed on the fresh air motor shaft 1212, and a support hole can be opened on the second volute half 821, and the end of the fresh air motor shaft 1212 extends into the support hole, thereby making the rotation of the fresh air motor shaft 1212 smoother.

[0341] In some embodiments, reference Figure 6 、 Figure 15As shown, the fan cover 822 includes a cover plate 8222, which includes a cover plate body 82221 and a cover plate flange 82222. The cover plate flange 82222 is connected to the cover plate body 82221 and protrudes downward relative to the cover plate body 82221. The cover plate flange 82222 extends downward relative to the cover plate body 82221 toward the bottom of the main body 1000. The cover plate flange 82222 and the second volute half 821 enclose the fresh air inlet 801. The provision of the cover plate flange 82222 facilitates connection to the fresh air intake pipe 141, which can be separated from the cover plate body 82221. Optionally, the fresh air intake pipe 141 and the cover plate flange 82222 can be connected by a clamp, thread, or other means.

[0342] The fresh air valve 122 is located on the side of the cover plate body 82221 that is away from the cover plate flange 82222, and the side of the cover plate body 82221 that is away from the cover plate flange 82222 is the interior of the fresh air volute 8. In this way, the fresh air valve 122 is located inside the fresh air volute 8, and the components outside the fresh air volute 8 do not need to consider avoiding the fresh air valve 122. The action of the fresh air valve 122 opening and closing the fresh air inlet 801 will not touch the components outside the fresh air volute 8, and the fresh air volute 8 has a protective effect on the fresh air valve 122, which is beneficial to extending the service life of the fresh air valve 122.

[0343] The fresh air valve 122 and the cover plate body 82221 are both constructed as flat structures, and the fresh air valve 122 is parallel to the cover plate body 82221. When the fresh air valve 122 moves, it moves in a plane parallel to the cover plate body 82221, which does not cause too much interference with the air volume inside the fresh air volute 8.

[0344] In some embodiments, the fresh air valve 122 opens the passage between the side inlet 8212 and the fresh air chamber V012 at multiple locations to adjust the air volume at the location of the fresh air valve 122 .

[0345] In some embodiments, the exhaust valve 152 opens the exhaust outlet 902 at multiple positions to adjust the air volume at the exhaust outlet 902.

[0346] In some embodiments, reference Figure 6 、 Figure 15 As shown, the purified air inlet 804 is provided on the cover plate body 82221, and the fresh air valve 122 is also used to open or close the purified air inlet 804. By moving the fresh air valve 122, the fresh air valve 122 can block the purified air inlet 804 and open the passage between the side inlet 8212 and the fresh air chamber V012, or the fresh air valve 122 can block the passage between the side inlet 8212 and the fresh air chamber V012 and open the purified air inlet 804.

[0347] In some embodiments, the purified air inlet 804 and the fresh air inlet 801 are spaced apart along the direction of movement of the fresh air valve 122. The purified air inlet 804 and the fresh air inlet 801 have the same air intake direction, so that when the fresh air valve 122 moves horizontally, it can open one of the purified air inlet 804 and the fresh air inlet 801 and close the other. Specifically, the fresh air valve 122 is adapted to move horizontally in a direction perpendicular to the axis of the second motor 5 to block the purified air inlet 804 and open the passage between the side inlet 8212 and the fresh air chamber V012, or to block the passage between the side inlet 8212 and the fresh air chamber V012 and open the purified air inlet 804. Thus, a single fresh air valve 122 can switch the opening and closing states of the passage between the bypass inlet 8212 and the fresh air chamber V012, as well as the purified air inlet 804. When one is open, the other is closed. This eliminates the need for two valves, saving on the number of valves and corresponding motors, and contributing to cost reduction. When the purified air inlet 804 is open, the wall-mounted air conditioner 10000 is in purification mode.

[0348] The front-to-back direction of the main body 1000 is perpendicular to the direction of the axis of the second motor 5. In the front-to-back direction of the main body 1000, the purified air inlet 804 and the fresh air inlet 801 are spaced apart. Figure 6 、 Figure 15 As shown, the purified air inlet 804 can be located in front of the fresh air inlet 801, that is, the purified air inlet 804 is located on the side of the fresh air inlet 801 away from the wall. In other embodiments, the purified air inlet 804 can also be located behind the fresh air inlet 801, that is, the purified air inlet 804 is located on the side of the fresh air inlet 801 close to the wall.

[0349] In some embodiments, reference Figure 6 、 Figure 15 As shown, the fresh air valve 122 opens or closes the channel between the side inlet 8212 and the fresh air chamber V012 by translation. A fresh air inlet 801 and a purified air inlet 804 are provided on the fresh air volute 8. The fresh air inlet 801 and the purified air inlet 804 are both provided at the bottom of the fresh air volute 8, and the opening directions of the fresh air inlet 801 and the purified air inlet 804 are both downward.

[0350] The fresh air valve 122 is configured to open or close the passage between the side inlet 8212 and the fresh air chamber V012 by translating. This allows the fresh air valve 122 to simultaneously open and close the passage between the side inlet 8212 and the fresh air chamber V012 while also opening and closing the purified air inlet 804. Specifically, the fresh air valve 122 opens the passage between the side inlet 8212 and the fresh air chamber V012 while simultaneously closing the purified air inlet 804, and closes the passage between the side inlet 8212 and the fresh air chamber V012 while simultaneously opening the purified air inlet 804. In this way, the passage between the side inlet 8212 and the fresh air chamber V012 and the purified air inlet 804 share the same fresh air valve 122, eliminating the need for separate valves for each. This reduces the number of valves.

[0351] In some embodiments, reference Figure 6-Figure 7 、 Figure 14 As shown, the exhaust valve 152 opens or closes the exhaust outlet 902 by rotating. Setting the exhaust valve 152 to open or close the exhaust outlet 902 by rotating can save the space occupied by the exhaust valve 152, so that the structure of the exhaust volute 9 at the exhaust outlet 902 does not need to be made very large, and the rotation of the exhaust valve 152 is simple and easy to implement.

[0352] In some embodiments, reference Figure 6-Figure 7 、 Figure 14 As shown, wall-mounted air conditioner 10000 includes an exhaust valve motor 151, which includes an exhaust motor body 1511 and an exhaust motor shaft 1512. Exhaust motor body 1511 is mounted outside exhaust volute 9. This prevents exhaust motor body 1511 from occupying the interior space of exhaust volute 9 and, consequently, from occupying space in exhaust duct V02, thereby not affecting the air volume within exhaust duct V02. Exhaust motor shaft 1512 is rotatably mounted on exhaust motor body 1511 and is used to drive exhaust valve 152 to open or close exhaust outlet 902. Exhaust valve 152 and exhaust valve motor 151 constitute a second valve assembly 15.

[0353] In some embodiments, the exhaust valve 152 is a baffle, and the exhaust valve motor 151 is used to drive the exhaust valve 152 to rotate at the exhaust outlet 902 to open or close the exhaust outlet 902. Specifically, the exhaust motor shaft 1512 at least partially extends into the exhaust volute 9, and the exhaust motor shaft 1512 is used to drive the exhaust valve 152 to rotate at the exhaust outlet 902.

[0354] Specifically, refer to Figure 14As shown, the exhaust valve 152 is fixedly connected to the exhaust motor shaft 1512. Optionally, the exhaust valve 152 and the exhaust motor shaft 1512 are an integral part, or optionally, the exhaust valve 152 and the exhaust motor shaft 1512 are fixedly connected by assembly.

[0355] In some embodiments, when the exhaust valve 152 rotates outward, that is, when it rotates toward the air outlet direction of the exhaust outlet 902, the exhaust valve 152 opens the exhaust outlet 902. In this way, when air is discharged from the exhaust outlet 902, the wind force will not push the exhaust valve 152 to rotate in the opposite direction, but will keep the exhaust valve 152 in the open state.

[0356] In some embodiments, reference Figure 6 、 Figure 14-15 As shown, the axial direction of the fresh air valve motor 121 is parallel to the axial direction of the exhaust valve motor 151.

[0357] It should be noted that any one of the technical solutions disclosed in the present invention can solve one or more of the above-mentioned technical problems and achieve certain disclosure purposes to a certain extent; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above-mentioned technical problems and achieve certain disclosure purposes; some technical disclosures can also be selected to be combined into an overall solution, while adopting related technologies and inferior solutions, but the inferior trend can be compensated by the means disclosed in this technology, and one or more of the above-mentioned technical problems can be solved to a certain extent as a whole and achieve certain disclosure purposes; each technical disclosure combined into a complete technical solution constitutes an organic and inseparable overall solution, which solves technical problems as a whole and achieves certain disclosure purposes.

[0358] Any technical disclosure in the present invention, as well as the recombination of multiple technical disclosures, can form a complete technical solution and can solve one or more of the above-mentioned technical problems and achieve the purpose of disclosure. They all belong to the content of the present invention and are directly and unambiguously determined based on the content of the present invention.

[0359] Those skilled in the art will understand that the scope of the present invention is not limited to the above embodiments, and that certain elements of the embodiments may be modified and replaced without departing from the spirit of the present invention. The scope of the present invention 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 casing (1), wherein a receiving cavity (V1) is formed inside the casing (1), and a heat exchange air inlet (101) and a heat exchange air outlet (102) are formed on the casing (1); A base (3) is disposed in the accommodating cavity (V1) and is formed with a volute-tongue air duct (V03); a heat exchange fan (41) disposed in the volute-tongue air duct (V03) to draw indoor air into the volute-tongue air duct (V03) through the heat exchange air inlet (101) when rotating, and to blow the air in the volute-tongue air duct (V03) into the room through the heat exchange air outlet (102); a first motor (42) disposed in the accommodating cavity (V1) and located at one end in the length direction of the heat exchange fan (41), for driving the heat exchange fan (41) to rotate so that air inside the air conditioner performs heat exchange with the indoor space; It is characterized by further comprising: A second motor (5) is disposed in the accommodating cavity (V1), and the second motor (5) is located at the other end of the length direction of the heat exchange fan (41). The second motor (5) is an outer rotor motor, and the second motor (5) includes: a stator portion (51), wherein a coil is wound on the stator portion (51); a rotor portion (52) disposed around the outer side of the stator portion (51) in a radial direction of the stator portion (51); a motor housing (53), wherein the motor housing (53) is fixedly connected to the rotor portion (52); an output shaft (532), the output shaft (532) being fixedly connected to the motor housing (53); A fresh air fan (6), the fresh air fan (6) is a centrifugal fan with axial air intake and radial air discharge, the fresh air fan (6) is sleeved on the radial outer side of the motor housing (53), and the fresh air fan (6) is fixedly connected to the motor housing (53); an exhaust fan (7), the exhaust fan (7) being a centrifugal fan with axial air intake and radial air discharge, the exhaust fan (7) being fixedly connected to the output shaft (532) of the second motor (5); The fresh air fan (6) is located between the exhaust fan (7) and the heat exchange fan (41), and the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously in a working state; A fresh air volute (8), a fresh air duct (V01) is formed in the fresh air volute (8), the fresh air fan (6) is installed in the fresh air volute (8), and a fresh air inlet (801) and a fresh air outlet (802) are formed on the fresh air volute (8); The rotation of the fresh air fan (6) allows outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and allows the outdoor air entering the fresh air volute (8) to enter the room from the fresh air outlet (802); An exhaust volute (9), an exhaust air duct (V02) is formed in the exhaust volute (9), the exhaust fan (7) is installed in the exhaust volute (9), and an exhaust air inlet (901) and an exhaust air outlet (902) are formed on the exhaust volute (9); The exhaust fan (7) rotates to allow indoor air to enter the exhaust volute (9) from the exhaust air inlet (901), and to allow the indoor air entering the exhaust volute (9) to be discharged to the outside through the exhaust air outlet (902); The stator part (51), the rotor part (52) and the motor housing (53) are located in the fresh air volute (8), one end of the output shaft (532) extends into the fresh air volute (8), and the other end of the output shaft (532) extends into the exhaust volute (9).

2. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: A volute cavity (V011), a fresh air cavity (V012) and an axial vent (8211) are formed in the fresh air volute (8); the volute cavity (V011) is located between the fresh air cavity (V012) and the exhaust volute (9); the volute cavity (V011) and the fresh air cavity (V012) are connected via the axial vent (8211); the stator portion (51), the rotor portion (52) and the motor housing (53) are installed in the volute cavity (V011); The wall-mounted air conditioner (10000) further comprises: A purification component (11) is installed in the fresh air cavity (V012), the purification component (11) is connected to the fresh air volute (8), and the rotation of the fresh air fan (6) allows outdoor air to enter the fresh air cavity (V012) from the fresh air inlet (801), and allows the outdoor air entering the fresh air cavity (V012) to blow through the purification component (11), then enter the volute cavity (V011) from the axial vent (8211), and then enter the room from the fresh air outlet (802).

3. The wall-mounted air conditioner (10000) according to claim 2, characterized in that: The purification element (11) comprises a filter screen (111), and the filter screen (111) is covered at the axial ventilation opening (8211).

4. The wall-mounted air conditioner (10000) according to claim 2, characterized in that: The fresh air volute (8) comprises: a first volute (81), the first volute (81) being located on a side of the exhaust volute (9) facing the heat exchange fan (41), and the first volute (81) being detachably connected to the exhaust volute (9); A second volute (82), the second volute (82) is located on 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), and the purification element (11) is connected to the second volute (82).

5. The wall-mounted air conditioner (10000) according to claim 4, characterized in that: The second volute (82) includes: A second volute half (821), the second volute half (821) is located on a side of the first volute (81) away from the exhaust fan (7), and the second volute half (821) is detachably connected to the first volute (81), the axial vent (8211) is provided on the second volute half (821), the volute cavity (V011) is formed between the second volute half (821) and the first volute (81), and the fresh air fan (6) is located in the volute cavity (V011).

6. The wall-mounted air conditioner (10000) according to claim 5, characterized in that: The second volute half (821) and the first volute (81) enclose the fresh air outlet (802).

7. The wall-mounted air conditioner (10000) according to claim 5, characterized in that: The second volute (82) further includes: A fan cover (822), the fan cover (822) is located on a side of the second volute half (821) away from the exhaust fan (7), and the fan cover (822) and the second volute half (821) are detachably connected, and the cavity enclosed by the fan cover (822) and the second volute half (821) is the fresh air cavity (V012).

8. The wall-mounted air conditioner (10000) according to claim 7, characterized in that: The fan cover (822) and the second volute half (821) enclose the fresh air inlet (801).

9. The wall-mounted air conditioner (10000) according to claim 5, characterized in that: The exhaust volute (9) comprises: an exhaust volute end plate (907), the exhaust volute end plate (907) being located on a side of the exhaust fan (7) facing away from the heat exchange fan (7), and the exhaust air inlet (901) being provided on the exhaust volute end plate (907); An exhaust volute enclosure (906) is formed by extending along the edge of the exhaust volute end plate (907) toward the heat exchange fan (41), and the exhaust volute enclosure (906) surrounds the radial outer side of the exhaust fan (7). The exhaust volute enclosure (906) is detachably connected to the first volute (81).

10. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The fresh air volute (8) is formed with a purified air inlet (804) for communicating with the room. When the purified air inlet (804) is opened and the fresh air fan (6) rotates, indoor air can enter the fresh air volute (8) from the purified air inlet (804), and indoor air entering the fresh air volute (8) can enter the room from the fresh air outlet (802).

11. The wall-mounted air conditioner (10000) according to claim 10, characterized in that: The purified air inlet (804) and the fresh air inlet (801) are spaced apart and arranged in a direction perpendicular to the axis of the second motor (5); the purified air inlet (804) and the fresh air inlet (801) have the same air inlet direction; the wall-mounted air conditioner (10000) further comprises: A fresh air valve (122), the fresh air valve (122) is installed inside the fresh air volute (8), and the fresh air valve (122) is suitable for moving in a direction perpendicular to the axis of the second motor (5) to open or close the purified air inlet (804).

12. The wall-mounted air conditioner (10000) according to claim 10, characterized in that: The wall-mounted air conditioner (10000) further comprises: A purification valve is installed inside the fresh air volute (8), and the purification valve is used to open or close the purification air inlet (804).

13. The wall-mounted air conditioner (10000) according to claim 5, characterized in that: Also includes: A fixing bracket (17), the fixing bracket (17) is arranged on the second volute half (821), the fixing bracket (17) is arranged at the axial ventilation opening (8211), and the fixing bracket (17) is used to fix the second motor (5).

14. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: The fresh air fan (6) forms a fresh air receiving groove (V08) at the radial center, and at least a portion of the stator portion (51) of the second motor (5), at least a portion of the rotor portion (52), and at least a portion of the motor housing (53) are accommodated in the fresh air receiving groove (V08).

15. The wall-mounted air conditioner (10000) according to claim 14, characterized in that: The fresh air fan (6) comprises: A fresh air wheel (61), the fresh air wheel (61) and the second motor (5) are coaxially arranged, and the fresh air wheel (61) is connected to the motor housing (53) of the second motor (5); and Fresh air blades (62), the fresh air blades (62) are located at the outer edge of the fresh air wheel (61), and the fresh air blades (62) extend along the axial direction of the fresh air wheel (61); The fresh air fan (6) includes a fresh air protrusion (64) provided on the fresh air wheel (61), and the fresh air protrusion (64) extends relative to the fresh air wheel (61) in a direction away from the heat exchange fan (41), so that the side of the fresh air protrusion (64) facing the heat exchange fan (41) forms the fresh air receiving groove (V08).

16. The wall-mounted air conditioner (10000) according to claim 15, characterized in that: The fresh air blade (62) comprises: A first fresh air blade (621), wherein the first fresh air blade (621) is extended from the fresh air wheel (61) in a direction away from the exhaust fan (7).

17. The wall-mounted air conditioner (10000) according to claim 16, characterized in that: The fresh air blade (62) further includes: A second fresh air blade (622), the second fresh air blade (622) extends from the fresh air wheel (61) toward the exhaust fan (7).

18. The wall-mounted air conditioner (10000) according to claim 17, characterized in that: In the axial direction of the fresh air fan (6), the length of the second fresh air blade (622) is smaller than the length of the first fresh air blade (621).

19. The wall-mounted air conditioner (10000) according to any one of claims 1 to 18, characterized in that: The fresh air fan (6) comprises: Fresh air wheel (61); and A fresh air blade (62), the fresh air blade (62) being located at the outer edge of the fresh air wheel (61), and the fresh air blade (62) extending along the axial direction of the fresh air wheel (61), and the total thickness of the fresh air wheel (61) and the fresh air blade (62) in the axial direction being h1; The exhaust fan (7) comprises: exhaust wheel (71); and an exhaust blade (72), the exhaust blade (72) being located at the outer edge of the exhaust wheel disc (71), and the exhaust blade (72) extending along the axial direction of the exhaust wheel disc (71), and the total thickness of the exhaust wheel disc (71) and the exhaust blade (72) in the axial direction being h2; Among them, h2<h1.

20. The wall-mounted air conditioner (10000) according to any one of claims 1 to 18, 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) comprises: exhaust wheel (71); and an exhaust blade (72), the exhaust blade (72) being located at the outer edge of the exhaust wheel disc (71), and the exhaust blade (72) extending along the axial direction of the exhaust wheel disc (71), and the total thickness of the exhaust wheel disc (71) and the exhaust blade (72) in the axial direction being h2; Satisfies, h3>h2.

21. 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) comprises: Fresh air wheel (61); and A fresh air blade (62) is located at the outer edge of the fresh air wheel (61), and the fresh air blade (62) extends along the axial direction of the fresh air wheel (61). The total axial thickness of the fresh air wheel (61) and the fresh air blade (62) is h1, and h1>h3.

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

23. The wall-mounted air conditioner (10000) according to claim 2, characterized in that: The fresh air volute (8) is formed with a purified air inlet (804) for communicating with the room. The rotation of the fresh air fan (6) allows the indoor air to enter the fresh air cavity (V012) from the purified air inlet (804) to be purified by the purification element (11), and allows the indoor air entering the fresh air cavity (V012) to enter the volute cavity (V011) from the axial vent (8211) and then enter the room from the fresh air outlet (802).

24. The wall-mounted air conditioner (10000) according to claim 1, characterized in that: In the height direction of the main body (1000), the fresh air inlet (801) and the exhaust air outlet (902) are both located below the main body (1000).

25. The wall-mounted air conditioner (10000) according to claim 9, characterized in that: The exhaust volute (9) further comprises: A bypass duct (908), wherein the bypass duct (908) is suitable for being connected to at least one of the exhaust volute end plate (907) and the exhaust volute enclosure (906), one end of the bypass duct (908) is connected to the exhaust duct (V02), and the other end of the bypass duct (908) is connected to the fresh air inlet (801).

26. The wall-mounted air conditioner (10000) according to claim 25, characterized in that: The second volute half (821) is provided with a side inlet (8212), and the side inlet pipe (908) is connected to the fresh air inlet (801) through the side inlet (8212).

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