Wall-mounted air conditioner

Abstract

The invention 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 exhaust fan is located between the fresh air fan and the heat exchange fan, and the exhaust fan is arranged on the radial outer side of the motor shell in a sleeving mode. 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] This invention relates to the field of air conditioner technology, specifically to a wall-mounted air conditioner. Background Technology

[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, which are installed indoors and outdoors respectively, and connected by corresponding pipes and wires. Typically, to improve indoor air quality, air conditioners also have a fresh air intake system and an exhaust system for ventilation. In related technologies, each of the fresh air intake and exhaust systems requires a motor, resulting in a bulky overall structure and increased cost. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the related art. To this end, some embodiments of the present invention propose a wall-mounted air conditioner that can simultaneously exhaust and draw air into the room, with the fresh air fan and exhaust fan sharing the same motor, thereby reducing the overall size and saving costs.

[0005] A wall-mounted air conditioner according to some embodiments includes: a main body. The main body includes: a casing, the interior of which forms a cavity, and a heat exchange air inlet and a heat exchange air outlet formed on the casing; a base disposed within the cavity, on which a volute air duct is formed; a heat exchange fan disposed within the volute air duct; and a first motor disposed within the cavity and located at one end of the heat exchange fan along its length, for driving the heat exchange fan to rotate, thereby enabling heat exchange between air inside the air conditioner and the indoor space.

[0006] The wall-mounted air conditioner further includes: a second motor, disposed within the accommodating cavity, and located at the other end of the heat exchange fan along its length. The second motor is an external rotor motor, comprising: a stator portion having wound coils; a rotor portion arranged radially around the outside of the stator portion; a motor housing fixedly connected to the rotor portion; and an output shaft fixedly connected to the motor housing.

[0007] The second motor is located between the fresh air fan and the heat exchange fan.

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

[0009] The wall-mounted air conditioner also includes an exhaust fan, which is an axially inlet and radially outlet centrifugal fan. The exhaust fan is sleeved on the radially outer side of the motor housing and is fixedly connected to the motor housing.

[0010] The exhaust fan is located between the fresh air fan and the heat exchange fan. When the second motor is in operation, it drives both the fresh air fan and the exhaust fan to rotate synchronously. The fresh air fan and exhaust fan share the same motor, which reduces the overall size and saves costs.

[0011] The wall-mounted air conditioner further includes: a fresh air volute, a fresh air duct is formed inside the fresh air volute, a fresh air fan is installed inside 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.

[0012] The wall-mounted air conditioner further includes: an exhaust volute located on the side of the fresh air volute facing the second motor; an exhaust duct is formed inside the exhaust volute; an exhaust fan is installed inside the exhaust volute; and an exhaust inlet and an exhaust outlet are formed on the exhaust volute. The rotation of the exhaust fan allows indoor air to enter the exhaust volute from the exhaust inlet and allows the indoor air entering the exhaust volute to be exhausted to the outside from the exhaust outlet.

[0013] According to some embodiments, wall-mounted air conditioners can improve the cleanliness of the incoming fresh air while simultaneously exhausting and drawing in air from the room.

[0014] The second motor, fresh air fan, exhaust fan, fresh air volute, and exhaust volute constitute a bidirectional ventilation assembly. By adopting an external rotor motor for the second motor, and with the exhaust fan mounted radially outside the motor housing, the second motor is partially embedded within the exhaust fan and partially embedded within the fresh air fan on its output shaft. This ensures that the second motor almost overlaps with both the exhaust and fresh air fans along the length of the heat exchange fan, minimizing the axial portion of the exhaust and fresh air fans outside the second motor. Consequently, the overall axial dimension of the bidirectional ventilation assembly is close to that of the second motor, allowing for controllable length dimensions of the main body.

[0015] The main body of the second motor is located inside the exhaust fan, not the fresh air fan. This allows for more airflow space in the fresh air duct, facilitating the intake of fresh air and ensuring that the exhaust air volume is less than the fresh air volume, thus reducing indoor cooling or heating loss. Because the second motor uses an external rotor motor suitable for low-speed, high-torque, and direct-drive applications, a speed reducer is unnecessary. The exhaust fan can be directly mounted radially outside the motor housing. This avoids increasing the overall axial dimension and structural layout complexity associated with a speed reducer. Simply fixing the exhaust fan to the motor housing and connecting the fresh air fan to the output shaft of the second motor allows for a coaxial, stacked arrangement of the exhaust and fresh air fans, enabling them to rotate synchronously with minimal clearance.

[0016] The exhaust fan is located between the fresh air fan and the heat exchange fan. In other words, the exhaust fan is closer to the heat exchange fan than the fresh air fan. When a wall-mounted air conditioner is cooling or heating, the heat exchange fan operates to drive indoor air entering the casing from the heat exchange inlet through the indoor heat exchanger. Because the exhaust fan is close to the heat exchange fan, its inlet is very close to the inlet of the heat exchange fan. This means the exhaust fan can draw air directly from the heat exchange fan's inlet, meaning that when it rotates, it can draw indoor air from the heat exchange inlet to the exhaust fan itself. This eliminates the need for separate openings in the casing to draw air in separately, reducing the number of openings, simplifying the manufacturing process, and improving aesthetics. Furthermore, the heat exchange inlet is generally larger, resulting in a larger volume of indoor air drawn into the casing, leading to a larger airflow reaching the exhaust fan and accelerating ventilation. Additionally, the fresh air fan is located on the side of the exhaust fan furthest from the heat exchange fan. When there is condensation on the indoor heat exchanger near the heat exchange fan, the condensation is less likely to reach the fresh air fan, reducing the risk of water accumulation and bacterial growth at the fresh air fan.

[0017] Additional aspects and advantages of wall-mounted air conditioners will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

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

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

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

[0021] Figure 3 This is a perspective view of the interior of a body in one direction according to some embodiments;

[0022] Figure 4 This is a perspective view of the interior of the body in another direction according to some embodiments;

[0023] Figure 5 This is a perspective view of a bidirectional ventilation assembly according to some embodiments;

[0024] Figure 6 This is another perspective view of a bidirectional ventilation assembly according to some embodiments;

[0025] Figure 7 A side view of a bidirectional ventilation assembly according to some embodiments;

[0026] Figure 8 for Figure 7 A cross-sectional view along the AA direction;

[0027] Figure 9 An exploded view of a second motor according to some embodiments;

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

[0029] Figure 11 This is a cross-sectional view of an exhaust fan according to some embodiments;

[0030] Figure 12 A front view of a fresh air fan according to some embodiments;

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

[0032] Figure 14 An exploded view of a bidirectional ventilation assembly (hidden parts) according to some embodiments in one direction;

[0033] Figure 15 An exploded view of a bidirectional ventilation assembly according to some embodiments in another direction;

[0034] Figure 16 A perspective view of the exhaust volute, the mounting bracket, and the exhaust fan according to some embodiments;

[0035] Figure 17 This is a schematic diagram showing the assembly relationship between the exhaust volute, the fixed bracket, and the exhaust fan according to some embodiments;

[0036] Figure 18 A perspective view of a base according to some embodiments;

[0037] Figure 19 This is a front view of the main body of a wall-mounted air conditioner according to some embodiments (part of the casing is hidden in the figure);

[0038] Figure 20 This is a perspective view of the housing in the rear view according to some embodiments;

[0039] Figure 21 This is a connection diagram of the exhaust fan motor shaft and the exhaust valve.

[0040] Figure label:

[0041] Wall-mounted air conditioner 10000, main body 1000, casing 1, accommodating cavity V1, first chamber V11, second chamber V12.

[0042] Heat exchanger air inlet 101, heat exchanger air outlet 102, first ventilation duct V04, inlet pipe clearance 104, casing air outlet 105.

[0043] 2. Indoor heat exchanger; 3. Base; V03. Volute air duct; 31. End plate; 311. End plate body; 312. End plate protrusion; V31. Gap; 301. First support frame; 302. Second support frame; 3021.

[0044] Heat exchange fan 41, first motor 42

[0045] Second motor 5, stator section 51, stator body 511, base 512, rotor section 52, motor housing 53, output shaft 532.

[0046] Fresh air fan 6, fresh air wheel 61, wheel hole 612, fresh air blade 62, first fresh air blade 621, second fresh air blade 622, fresh air recess 63

[0047] Exhaust fan 7, receiving slot V07, exhaust wheel 71, exhaust blade 72, blade side edge 721, straight section 7211, gradient section 7212, side edge recess 73, protrusion 74.

[0048] Fresh air volute 8, fresh air duct V01, volute cavity V011, fresh air cavity V012, air cavity V0121, fresh air inlet 801, fresh air outlet 802, installation port 803, purified air inlet 804, fresh air diffuser section 805, first mounting bracket 806, second mounting bracket 807.

[0049] First volute 81, first volute end plate 811, first volute surrounding plate 812, recess 813, perforation 814.

[0050] Second volute 82, second volute half 821, axial ventilation port 8211, fan cover 822, cover plate 8222, cover plate body 82221, cover plate flange 82222.

[0051] Exhaust volute 9, exhaust duct V02, exhaust inlet 901, exhaust outlet 902, second volute enclosure 906, air guide ring 91, main volute 92, secondary volute 93.

[0052] Purification component 11, filter screen 111, electrical control box 13, air guide grille 16, fixed bracket 17, bracket end plate 171, bracket surrounding plate 172, mounting cavity 174, connecting arm 175, expansion tube 19.

[0053] 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.

[0054] Second valve assembly 15, exhaust valve motor 151, exhaust motor body 1511, exhaust motor shaft 1512, exhaust valve 152, exhaust transmission mechanism 153, exhaust gear 1531, exhaust rack 1532. Detailed Implementation

[0055] The following description, in conjunction with the accompanying drawings, clearly and completely describes some embodiments of the present invention. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments provided by the present invention are within the scope of protection of the present invention.

[0056] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0057] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0058] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0059] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0060] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0061] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0062] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0063] Some embodiments of the present invention provide a wall-mounted air conditioner 10000.

[0064] Typically, air conditioners are split-type air conditioners, which include an indoor unit and an outdoor unit. The indoor and outdoor units are connected by pipes to transfer refrigerant. The indoor unit includes an indoor heat exchanger 2 and a heat exchange fan 41.

[0065] 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 are connected in sequence to form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor heat exchanger and indoor heat exchanger 2 respectively to achieve the air conditioner's cooling mode or heating mode.

[0066] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0067] The outdoor heat exchanger is configured to exchange heat between outdoor air and refrigerant transported within it. For example, in the cooling mode of the air conditioner, the outdoor heat exchanger operates as a condenser, causing the refrigerant compressed by the compressor to dissipate heat to the outdoor air and condense. In the heating mode of the air conditioner, the outdoor heat exchanger operates as an evaporator, causing the depressurized refrigerant to absorb heat from the outdoor air and evaporate.

[0068] In some embodiments, the outdoor heat exchanger may include heat exchange fins to increase the contact area between outdoor air and the refrigerant transported in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0069] The outdoor fan is configured to draw in outside air into the outdoor unit and expel the outdoor air, which has been heated by the outdoor heat exchanger, to the outside. The outdoor fan provides power for the flow of outdoor air.

[0070] A throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger 2. This device regulates the refrigerant pressure flowing through both devices, thereby adjusting the refrigerant flow rate between them. The flow rate and pressure of the refrigerant flowing between the outdoor and indoor heat exchangers affect their heat exchange performance. The throttling device can be a throttling tube, an electronic valve, etc. When the throttling device is an electronic valve, its opening is adjustable to regulate the refrigerant flow rate and pressure.

[0071] In some designs, the air conditioner may include a four-way valve connected to the refrigerant circuit. The four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner can perform a cooling mode or a heating mode.

[0072] The indoor heat exchanger 2 is configured to exchange heat between indoor air and refrigerant transported 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 transported in the indoor heat exchanger 2, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0073] The heat exchange fan 41 is configured to draw indoor air into the indoor unit and deliver the indoor air, which has been heated by the indoor heat exchanger 2, into the room. The heat exchange fan 41 provides power for the flow of indoor air.

[0074] The air conditioner may include a control device, which is mainly used to control the operating frequency of the compressor and the opening degree of the throttling device. Some control devices can 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 throttling device, the motor that drives the outdoor fan, and the first motor 42 that drives the heat exchange fan 41 via a data cable to transmit communication information.

[0075] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor, or an application-specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device.

[0076] Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or keyboard drive).

[0077] Currently, most wall-mounted air conditioners are limited by size and weight, and their functions are relatively limited, usually only able to cool or heat indoor air. If users feel that the indoor air is stale or stuffy after running the air conditioner for a long time, they need to open the windows for ventilation. This is not only inconvenient, but also causes the cool or warm air to escape quickly through the windows, affecting people's comfort.

[0078] Some air-conditioning systems using fresh air intake technology draw in fresh air from the outside and exhaust indoor air through an exhaust system. However, due to factors such as unreasonable structural design, the quality of the fresh air blown into the room by these systems is low, failing to achieve the goal of improving indoor air quality.

[0079] To address the aforementioned issues, some embodiments of the present invention provide a wall-mounted air conditioner 10000. By adjusting and setting the structure and relative positions of components such as the second motor, exhaust fan, and motor housing, the cleanliness of the incoming fresh air can be improved while simultaneously exhausting and drawing air into the room.

[0080] For example, the wall-mounted air conditioner 10000 is an indoor unit. The wall-mounted air conditioner 10000 is typically installed on a wall, for example, in the upper area of ​​an interior wall.

[0081] The following description, with reference to the accompanying drawings, describes a wall-mounted air conditioner 10000 according to some embodiments.

[0082] Some embodiments of the wall-mounted air conditioner 10000, such as Figure 1 and Figure 2 As shown, it includes: main body 1000.

[0083] The main body 1000 includes: casing 1. For example... Figure 20 As shown, a 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. The casing 1 serves a protective function and constitutes the overall external structure of the wall-mounted air conditioner 10000.

[0084] Typically, the housing 1 is a long, rectangular shell, with its length positioned horizontally, meaning it is mounted on the wall laterally. In actual products, to drain condensate, in some embodiments the housing 1 is mounted horizontally on the wall at a small angle to the horizontal plane.

[0085] Reference Figure 3 and Figure 4 The main body 1000 also includes an indoor heat exchanger 2, which is disposed within the accommodating cavity V1. As described above, the indoor heat exchanger 2 is a loop in the refrigerant circuit, and refrigerant flows inside the indoor heat exchanger 2 to cool or heat the air flowing from the surface of the indoor heat exchanger 2. In the wall-mounted air conditioner 10000, the indoor heat exchanger 2 is typically arranged to extend along the length of the casing 1.

[0086] For example, the indoor heat exchanger 2 is a two-fold or three-fold heat exchanger, and each fold of the indoor heat exchanger 2 is a plate-like structure extending along the length direction.

[0087] Reference Figure 3 and Figure 4The main body 1000 also includes a base 3, which is located within the accommodating cavity V1. The base 3 is an internal mounting support structure of the main body 1000, and the indoor heat exchanger 2 can be mounted on the base 3. For example, a volute air duct V03 is formed on the base 3. After the indoor air enters the casing 1, the flow direction is guided by the volute air duct V03 to ensure that the indoor air encounters less resistance when flowing through the indoor heat exchanger 2.

[0088] Reference Figure 4 The main body 1000 also includes a heat exchange fan 41, which is installed in the volute air duct V03.

[0089] In some embodiments, the heat exchange fan 41 is, for example, a cross-flow fan, which has low noise and large air volume, and the air velocity of the cross-flow fan is more uniformly distributed along the axial direction of the cross-flow fan, which is beneficial to increasing the air delivery distance and air delivery range. Moreover, when a cross-flow fan is used and the cross-flow fan is arranged along the length direction of the heat exchange fan 41, it is beneficial for the driven airflow to flow through the entire indoor heat exchanger 2, ensuring the balance of heat exchange efficiency of each part of the indoor heat exchanger 2.

[0090] Reference Figure 4 The main body 1000 also includes a first motor 42, which is disposed within 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.

[0091] By providing a heat exchange outlet 102 and a heat exchange inlet 101 in the casing 1, the heat exchange fan 41 can draw indoor air into the casing 1 through the heat exchange inlet 101 when it is running. After the indoor air exchanges heat with the indoor heat exchanger 2, the heat-exchanged air is sent back into the room through the heat exchange outlet 102.

[0092] Therefore, the indoor ambient temperature can be regulated. The indoor heat exchanger 2 can be used as an evaporator to provide cooling airflow to the indoor space through the heat exchange outlet 102, or the indoor heat exchanger 2 can be used as a condenser to provide heating airflow to the indoor space through the heat exchange outlet 102.

[0093] In some embodiments, the heat exchange air inlet 101 is located above the heat exchange air outlet 102 in the height direction of the main body 1000, so that air can be drawn in from the top and discharged from the bottom.

[0094] For example, the height direction of the main body 1000 is the vertical direction.

[0095] Understandably, the main unit 1000 is usually installed on the wall, and to avoid interfering with people's daily lives, it is typically hung at a high position. By setting the main unit 1000 to blow out heat exchange air from below, the blown heat exchange air is less likely to be blocked by the roof or ground. This results in less resistance and energy loss during the air blowing process, a wider air delivery range, and allows the heat exchange air to flow throughout the entire indoor space as quickly as possible, thus improving heat exchange efficiency.

[0096] Reference Figure 1 and Figure 2 The heat exchange air inlet 101 is located above the heat exchange air outlet 102. The heat exchange air inlet 101 can take in air from above, which can avoid taking in air from the heat exchange air outlet 102 and prevent the heat exchange air from being blown out of the heat exchange air outlet 102 and directly sucked into the heat exchange air inlet 101, thus reducing the process of heat exchange air idling without participating in the indoor heat exchange.

[0097] In some embodiments, the heat exchange air inlet 101 is located on the top of the casing 1, that is, in an area that is not visible to the user. Hiding the heat exchange air inlet 101 can improve the aesthetic appearance of the wall-mounted air conditioner 10000.

[0098] In some embodiments, the heat exchange outlet 102 is located directly in front of the housing 1, that is, the heat exchange outlet 102 blows air towards the front of the main body 1000.

[0099] It is understandable that the side of the main body 1000 that is connected to the wall is usually called the back or rear side, while 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 air resistance is small, and the air delivery range is wide.

[0100] In some embodiments, the heat exchange outlet 102 is located on the front side of the housing 1 and near the bottom, for example, the heat exchange outlet 102 is located at the lower front corner of the housing 1. In this case, the heat exchange air blown out of the heat exchange outlet 102 flows forward and downward at the same time, so that after being delivered a certain distance, the heat exchange air can sink and fall onto people or objects on the ground, so that people or objects on the ground can be in a suitable indoor environment as soon as possible.

[0101] In some embodiments, the heat exchange fan 41 is located on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101. It 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 rotation, and is also a power drive component for air supply.

[0102] By placing the heat exchange fan 41 on the side of the indoor heat exchanger 2 away from the heat exchange inlet 101, the aerodynamic force generated when the heat exchange fan 41 rotates can be evenly distributed. Part of it is distributed to the air inlet side, so that the air drawn in can overcome the wind resistance generated by the indoor heat exchanger 2 when it flows into the volute air duct V03. The other part is distributed to the air outlet side, so that the air after heat exchange can be transported a longer distance when it is blown out from the heat exchange outlet 102.

[0103] In some embodiments, such as Figure 4 As shown, the first motor 42 is located at one end along the length of the heat exchange fan 41. This facilitates the installation and maintenance of the first motor 42, and the main body 1000 does not need to become excessively tall or thick due to the placement of the first motor 42. Here, the height direction of the main body 1000 is consistent with the vertical direction, and the thickness direction of the main body 1000 is consistent with the front-to-back direction.

[0104] It is understandable that wall-mounted air conditioners 10000 generally have a long, narrow structure, and the length of the heat exchange fan 41 is the same as the length of the main body 1000. Figures 1-2 , Figure 19 The left and right directions are shown.

[0105] In some embodiments, such as Figure 8 As shown, the wall-mounted air conditioner 10000 also 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 along its length.

[0106] In this way, the first motor 42 and the second motor 5 are located at both ends of the heat exchange fan 41 along its length. On the one hand, the two motors are separated and far apart, resulting in less electromagnetic interference between them. On the other hand, the two motors are arranged at both ends of the heat exchange fan 41 along its length, rather than along the thickness or height of the main body 1000, making the main body 1000 of the wall-mounted air conditioner 10000 slender, thin and light.

[0107] Reference Figure 9 and Figure 10 The second motor 5 includes a stator 51 and a rotor 52, which together form the main body of the second motor 5. The stator 51 has wound coils that generate an alternating magnetic field when alternating current is applied, and the rotor 52 is induced and rotates in the alternating magnetic field.

[0108] For example, the rotor section 52 can be a magnetic ring or a magnetic tile. For instance, if the rotor section 52 is a magnetic ring, leakage flux loss can be reduced, magnetic flux enhanced, and the power output efficiency of the second motor 5 improved. Furthermore, using a magnetic ring results in a more uniform magnetic field distribution, better anti-interference performance, and higher mechanical precision.

[0109] The second motor 5 is an external rotor motor, with the rotor portion 52 arranged radially around the outside of the stator portion 51. Choosing an external rotor motor for the second motor 5 not only simplifies its structure but also allows for a larger diameter due to the rotor portion 52's radial arrangement around the stator portion 51. This results in greater torque and makes it suitable for low-speed, high-torque, and direct-drive applications. In other words, when the second motor 5 outputs power, a speed reducer is not needed for torque amplification, saving space occupied by a speed reducer.

[0110] In addition, the rotor section 52 is located radially outside the stator section 51, with a larger heat dissipation area and better heat dissipation performance, which is beneficial 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 encroaching on the airflow channel space.

[0111] Reference Figure 9 and Figure 10 The second motor 5 also includes a motor housing 53, which can support and protect the main body of the second motor 5.

[0112] The motor housing 53 is fixedly connected to the rotor 52, and the motor housing 53 and the rotor 52 rotate synchronously. In this way, the rotor 52 can be fixed by the motor housing 53, which facilitates connection with external structures.

[0113] The second motor 5 also includes an output shaft 532, which is fixedly connected to the motor housing 53, and one end of the output shaft 532 extends along the axial direction of the motor housing 53 toward the side away from the heat exchange fan 41. In other words, the main body of the second motor 5 is separated from the indoor heat exchanger 2 and the heat exchange fan 41 by a certain distance, thereby reducing the vibration transmitted to the indoor heat exchanger 2 and the heat exchange fan 41 by the operation of the second motor 5.

[0114] 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 fixedly connected to the output shaft 532 of the second motor 5.

[0115] Reference Figure 8 The wall-mounted air conditioner 10000 also includes an exhaust fan 7, which is a centrifugal fan with axial air intake and radial air exhaust. The exhaust fan 7 is fitted on the radial outer side of the motor housing 53 and is fixedly connected to the motor housing 53. For example, when the second motor 5 is in operation, it drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously.

[0116] Centrifugal fans are characterized by their compact structure, large air volume, and low noise. Furthermore, fan noise decreases significantly as the speed decreases. Therefore, smaller centrifugal fans can meet the high air volume requirements for the fresh air fan 6 and the exhaust fan 7. The low vibration and noise of centrifugal fans make them less likely to resonate with the indoor heat exchanger 2, which helps reduce the overall vibration and noise of the wall-mounted air conditioner 10000.

[0117] Both the fresh air fan 6 and the exhaust fan 7 are centrifugal fans, allowing for a more efficient arrangement of their airflow directions. For example, the fresh air fan 6 draws in air axially and exits radially, while the exhaust fan 7 draws in air axially and exits radially. The fresh air fan 6 and exhaust fan 7 draw in air from opposite ends, and then both are driven to exit radially. The flow paths of the fresh air and exhaust air do not need to overlap axially, and their paths do not need to intersect. This helps reduce the need for bends and turns in the fresh air and exhaust paths, reducing wind resistance and energy consumption, ensuring airflow, and lowering noise.

[0118] In some embodiments, refer to Figure 8 The exhaust fan 7 is located between the fresh air fan 6 and the heat exchange fan 41. In other words, the exhaust fan 7 is closer to the heat exchange fan 41 than the fresh air fan 6. When the wall-mounted air conditioner 10000 is cooling or heating, the heat exchange fan 41 operates to drive indoor air entering the casing 1 from the heat exchange inlet 101 through the indoor heat exchanger 2. The exhaust fan 7 is close to the heat exchange fan 41, and the air inlet of the exhaust fan 7 is close to the air inlet of the heat exchange fan 41. The exhaust fan 7 can draw air from the air inlet of the heat exchange fan 41. That is to say, when the exhaust fan 7 rotates, it can draw indoor air drawn into the casing 1 from the heat exchange inlet 101 to the exhaust fan 7, so there is no need to open a separate hole on the casing 1 to draw air separately to the exhaust fan 7. This reduces the number of openings on the casing 1, simplifies the manufacturing process of the casing 1, and increases the aesthetics. In addition, the heat exchange air inlet 101 is generally set to be large, so the amount of indoor air drawn into the casing 1 through the heat exchange air inlet 101 is large, which makes the air volume reaching the exhaust fan 7 also large, thus speeding up the exhaust efficiency.

[0119] In some embodiments, the fresh air fan 6 is positioned on the side of the exhaust fan 7 furthest from the indoor heat exchanger 2. When there is condensation on one side of the indoor heat exchanger 2, the condensation is less likely to reach the fresh air fan 6, reducing the risk of water accumulation and bacterial growth at the fresh air fan 6.

[0120] Reference Figures 5-8The wall-mounted air conditioner 10000 also includes: a fresh air volute 8, a fresh air duct V01 formed inside the fresh air volute 8, a fresh air fan 6 installed inside the fresh air volute 8, and a fresh air inlet 801 and a fresh air outlet 802 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 through the fresh air inlet 801, and allows outdoor air entering the fresh air volute 8 to enter the room through the fresh air outlet 802.

[0121] Reference Figures 5-8 The wall-mounted air conditioner 10000 also includes: an exhaust volute 9, located on the side of the fresh air volute 8 facing the second motor 5; an exhaust duct V02 formed inside the exhaust volute 9; an exhaust fan 7 installed inside the exhaust volute 9; and an exhaust air inlet 901 and an exhaust air outlet 902 formed on the exhaust volute 9. Rotation of the exhaust fan 7 allows indoor air to enter the exhaust volute 9 through the exhaust air inlet 901 and allows indoor air entering the exhaust volute 9 to be exhausted to the outside through the exhaust air outlet 902.

[0122] In some embodiments, the fresh air volute 8 and the fresh air fan 6 constitute a fresh air device. The fresh air fan 6 is disposed within the fresh air duct V01 and is used to drive airflow to be drawn in from the fresh air inlet 801 and discharged into the room through the fresh air outlet 802. The operation of the fresh air fan 6 provides the power for the flow of fresh air.

[0123] Therefore, by setting up a fresh air duct V01 in conjunction with a fresh air fan 6, when the indoor air is relatively polluted or the air quality is poor, the fresh air fan 6 can drive relatively fresh outdoor air into the indoor environment to improve the indoor airflow environment.

[0124] In some embodiments, the exhaust volute 9 and the exhaust fan 7 constitute an exhaust device. The exhaust fan 7 is disposed within the exhaust duct VO2 and drives airflow to be drawn in from the exhaust inlet 901 and discharged from the room through the exhaust outlet 902. The operation of the exhaust fan 7 provides the power for the flow of stale air.

[0125] Therefore, by setting up exhaust duct V02 in conjunction with exhaust fan 7, when the indoor air is relatively polluted or the air quality is poor, the exhaust fan 7 can draw away and exhaust the polluted airflow in the indoor space. After the indoor air volume is reduced, fresh air will be drawn in from the outside or from other rooms through doors and windows, thereby reducing the degree of indoor air pollution.

[0126] 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 assembly, which is installed within the main body 1000. The two-way ventilation assembly can provide fresh air to the room and exhaust indoor air to the outside.

[0127] It should be noted that the operating mode of the two-way ventilation component in the 10000 wall-mounted air conditioner can be set according to actual usage needs.

[0128] In some embodiments, the bidirectional ventilation component can operate in both fresh air mode and exhaust mode simultaneously, that is, the fresh air duct V01 and the exhaust air duct V02 can be opened at the same time. While the indoor polluted airflow flows to the outdoor space, the outdoor fresh airflow can also enter the indoor space. Through the combination of inlet and outlet airflow, the efficiency of indoor airflow improvement is increased, so as to meet the user's needs in a timely manner when the user urgently needs to exhaust or refresh the indoor air.

[0129] Furthermore, because it simultaneously exhausts indoor air to the outside and replenishes it with fresh outdoor air, maintaining a sufficient indoor air volume, it makes it easier to remove indoor air. For example, if there are irritating gases (such as gases released from home decoration materials), gas, or other gas leaks indoors, a two-way ventilation system can be set up to operate in both fresh air and exhaust modes simultaneously, achieving rapid air exchange. Compared to conventional fresh air structures that simply introduce fresh air, some embodiments of the two-way ventilation system have a larger purification flow rate per unit time, higher ventilation efficiency, and better purification effect.

[0130] Furthermore, the ventilation system avoids rapid airflow like opening a window, which could cause drastic temperature changes and discomfort for occupants due to sudden temperature increases or decreases. Also, the main structure (1000) is positioned at a higher elevation, ensuring that ventilation points are not too close to people, thus preventing discomfort.

[0131] In some embodiments, the bidirectional ventilation component can selectively operate in either fresh air mode or exhaust mode. That is, when the bidirectional ventilation component is in fresh air mode, the exhaust mode is turned off, and only the fresh air duct V01 is ventilated, while the exhaust duct V02 is not ventilated. Alternatively, when the bidirectional ventilation component is in exhaust mode, the fresh air mode is turned off, and in this case, the fresh air duct V01 is not ventilated, while the exhaust duct V02 is ventilated.

[0132] In some embodiments, the wall-mounted air conditioner 10000 is equipped with a two-way ventilation assembly, such as... Figure 8 As shown, the bidirectional 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.

[0133] In some embodiments, the second motor 5 is an external rotor motor. The second motor 5 includes: a stator portion 51, a rotor portion 52, a motor housing 53, and an output shaft 532. The stator portion 51 has a wound coil. In the radial direction of the stator portion 51, the rotor portion 52 is disposed around the outside of the stator portion 51. The motor housing 53 is fixedly connected to the rotor portion 52. The output shaft 532 is fixedly connected to the motor housing 53, and one end of the output shaft 532 extends along the axial direction of the motor housing 53 toward the side away from the heat exchange fan 41.

[0134] In some embodiments, the second motor 5 is located at the end of the heat exchange fan 41 along its length, and the axial direction of the second motor 5 is arranged along the length of the heat exchange fan 41. The second motor 5 serves as the common power source for both the fresh air device and the exhaust device of the bidirectional ventilation assembly. To ensure the operation of both the fresh air device and the exhaust device, the second motor 5 needs sufficient operating power to drive a sufficient airflow. Based on the power requirements of the second motor 5, the second motor 5 needs to be of a sufficiently large size.

[0135] In some embodiments, given that the size parameters of the second motor 5 are generally determined, the arrangement of the fresh air device and the exhaust air device takes into account how to utilize the space where the second motor 5 is located, and occupy as little additional space as possible.

[0136] 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 stacked along the length direction of the heat exchange fan 41.

[0137] In some embodiments, the centrifugal fan itself is relatively flat in the axial direction. The stacking of the fresh air fan 6 and the exhaust fan 7 in this way can reduce the overall axial dimension occupied, so that the length of the main body 1000 does not need to be too long. Since the fresh air fan 6 and the exhaust fan 7 are connected to the same motor and rotate synchronously, they are in sync and do not need to be separated by a large gap. The axial distance between the fresh air fan 6 and the exhaust fan 7 can be arranged to be relatively close.

[0138] It should be noted that when describing the internal structure of the bidirectional ventilation assembly, 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 around the output shaft 532 is the circumferential direction.

[0139] In the above scheme, by adopting an external rotor motor for the second motor 5, and the exhaust fan 7 being fitted on the radial outer side of the motor housing 53, the second motor 5 is partially embedded in the exhaust fan 7 within the motor housing 53, and partially embedded in the fresh air fan 6 within the output shaft 532. This results in the second motor 5 almost overlapping with the exhaust fan 7 and the fresh air fan 6 in the length direction of the heat exchange fan 41, minimizing the axial portion of the exhaust fan 7 and the fresh air fan 6 outside the second motor 5. Consequently, the overall axial dimension of the bidirectional ventilation assembly is close to that of the second motor 5, thus making the length dimension of the main body 1000 controllable.

[0140] For example, the main body of the second motor 5 is located inside the exhaust fan 7, rather than the fresh air fan 6, which allows more space for airflow in the fresh air duct V01, facilitating the intake of fresh air. Understandably, when the wall-mounted air conditioner 10000 is in cooling mode, the fresh air unit draws in fresh air from outdoors to indoors, and the cooling capacity generated by the wall-mounted air conditioner 10000 can still remain indoors, resulting in minimal cooling loss.

[0141] In some embodiments, indoor air is exhausted outdoors through an exhaust fan. By setting the exhaust air volume to be less than the fresh air volume, cooling loss can be reduced. Therefore, by squeezing the space of the exhaust duct V02 into the second motor 5, more space is left for the fresh air duct V01, which helps to ensure a larger fresh air volume.

[0142] Furthermore, because the second motor 5 uses an external rotor motor suitable for low-speed, high-torque, and direct-drive scenarios, a reducer is unnecessary. The exhaust fan 7 can be directly mounted radially outside the motor housing 53. This not only avoids increasing the overall axial dimension of the reducer but also avoids complicating the structural layout. Simply fixing the exhaust fan 7 to the motor housing 53 and connecting the fresh air fan 6 to the output shaft 532 of the second motor 5 allows the exhaust fan 7 and fresh air fan 6 to be coaxially stacked, enabling them to rotate synchronously with a small gap, eliminating the need for excessive spacing. This also ensures that the overall axial dimension of the bidirectional ventilation assembly is close to that of the second motor 5, and the length of the main body (1000mm) is controllable.

[0143] In some embodiments, the fresh air unit and the exhaust unit are effectively integrated, allowing both units to utilize their respective structural and spatial characteristics to achieve a flattened design. This not only reduces the overall size and weight of the bidirectional ventilation component, making it lighter and more compact, but also ensures that the air ducts do not interfere with each other. The bidirectional ventilation component is located at one end of the length of the heat exchange fan 41. Compared to the main body without the bidirectional heat exchange component, only the lateral length is increased. The height and thickness of the main body 1000 can remain largely unchanged or only slightly altered, resulting in a slim and lightweight design. When mounted on the wall, it will not obtrusively affect the interior space layout, and its excessive weight will not make it difficult to secure the wall-mounted air conditioner 10000, reducing the risk of it falling off the wall. The wall-mounted air conditioner 10000 remains a slim and lightweight model, making it aesthetically pleasing and with manageable weight when mounted on the wall.

[0144] In some embodiments, such 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, which improves the axial and radial bending moment bearing capacity of the output shaft 532 and improves the rotational smoothness of the output shaft 532.

[0145] For example, such 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.

[0146] In some embodiments, the motor housing 53 and the exhaust fan 7 are integrally injection molded parts, thereby reducing processing steps and improving the connection between the motor housing 53 and the exhaust fan 7.

[0147] In some embodiments, the outer surface of the stator 51 is an insulating and waterproof surface. Thus, even if the air entering the exhaust duct VO2 from the exhaust inlet 901 carries some moisture, the insulating and waterproof surface protects the stator 51, preventing this moisture from corroding it and thus ensuring high operational reliability of the second motor 5. For example, when there is condensate on the indoor heat exchanger 2, or when condensate adheres to the surface of parts near the indoor heat exchanger 2 within the accommodating cavity V1, the condensate is drawn into the exhaust duct VO2 by the exhaust fan 7. Even if the condensate enters the second motor 5, it will not cause damage to the motor.

[0148] For example, the stator section 51 includes a stator body 511 and a base 512. The base 512 covers the stator body 511, so the stator body 511 is not exposed. The base 512 can be made of plastic, which has good insulation and waterproofing properties. Because the base 512 covers the stator body 511, moisture will not corrode the stator section 51, thereby making the second motor 5 have high operational reliability.

[0149] In some embodiments, the stator body 511 and the base 512 are injection molded as a single unit.

[0150] In some embodiments, the substrate 512 is attached to the outside of the stator body 511.

[0151] In some embodiments, refer to Figure 19 As shown, the wall-mounted air conditioner 10000 also includes an end plate 31, which is located at the end of the indoor heat exchanger 2 near the exhaust fan 7 and is connected to the indoor heat exchanger 2. The end plate 31 is used to install the indoor heat exchanger 2 on the base 3.

[0152] A gap V31 is provided between the end plate 31 and the exhaust volute 9. This gap V31 is used to form a channel for indoor air to flow from the heat exchange air inlet 101 to the exhaust air inlet 901. Specifically, when the exhaust fan 7 rotates, it can draw indoor air into the housing 1 through the heat exchange air inlet 101. At least a portion of the indoor air in the housing 1 can enter the exhaust air inlet 901 through the gap V31, thereby entering the exhaust duct V02.

[0153] The end plate 31 includes an end plate body 311 and an end plate protrusion 312. The end plate protrusion 312 protrudes relative to the end plate body 311 toward the exhaust volute 9. The distance between the end plate body 311 and the exhaust volute 9 in the length direction of the heat exchange fan 41 is T, where T≥10mm and T≤30mm.

[0154] In some embodiments, the end plate protrusion 312 and the end plate body 311 may be an integral part or a fixed connection structure.

[0155] The distance T between the end plate body 311 and the exhaust volute 9 refers to the distance between the point on the end plate body 311 closest to the exhaust volute 9 and the point on the exhaust volute 9 closest to the end plate body 311 along the length of the heat exchange fan 41.

[0156] In some embodiments, the distance T between the end plate body 311 and the exhaust volute 9 along the length of the heat exchange fan 41 is not less than 10 mm, i.e., T ≥ 10 mm. When the distance T between the end plate body 311 and the exhaust volute 9 is less than 10 mm, the distance between the exhaust inlet 901 of the exhaust volute 9 and the end plate body 311 is too close, the gap V31 is too small, and the airflow between the exhaust volute 9 and the end plate body 311 is small, resulting in a small airflow entering the exhaust inlet 901, which is insufficient to meet the exhaust requirements. By setting the distance T between the end plate body 311 and the exhaust volute 9 to not less than 10 mm, the distance between the exhaust inlet 901 of the exhaust volute 9 and the end plate body 311 is not too close, the airflow within the gap V31 is sufficient, and the airflow entering the exhaust inlet 901 is large, thereby meeting the exhaust requirements.

[0157] In some embodiments, the distance T between the end plate body 311 and the exhaust volute 9 along the length of the heat exchange fan 41 is no greater than 30mm, i.e., T≤30mm. When the distance T between the end plate body 311 and the exhaust volute 9 is greater than 30mm, the distance between the exhaust air inlet 901 of the exhaust volute 9 and the end plate body 311 is too far, and the gap V31 is too large, resulting in an increase in the overall length of the wall-mounted air conditioner 10000, occupying a large space, which is not conducive to the miniaturization design of the structure. By setting the distance T between the end plate body 311 and the exhaust volute 9 to no greater than 30mm, the distance between the exhaust air inlet 901 of the exhaust volute 9 and the end plate body 311 is not too far, the overall length of the wall-mounted air conditioner 10000 is not too long, and the space occupied by the wall-mounted air conditioner 10000 is smaller, which is conducive to the miniaturization design of the structure. At the same time, the air volume in the gap V31 is sufficient, so that the air volume entering the exhaust air inlet 901 is large, thereby meeting the exhaust demand.

[0158] For example, the distance T between the end plate body 311 and the exhaust volute 9 can be 11mm, 13mm, 15mm, 18mm, 20mm, etc.

[0159] In some embodiments, the distance T between the end plate body 311 and the exhaust volute 9 along the length of the heat exchange fan 41 is 13mm. This ensures that the distance between the exhaust inlet 901 of the exhaust volute 9 and the end plate body 311 is not too close, resulting in sufficient airflow within the gap V31. This allows for a large volume of air entering the exhaust inlet 901, thus meeting the exhaust requirements. Simultaneously, the distance between the exhaust inlet 901 of the exhaust volute 9 and the end plate body 311 is not too far, preventing the overall length of the wall-mounted air conditioner 10000 from becoming excessively long. This results in a smaller space occupied by the wall-mounted air conditioner 10000, which is beneficial for miniaturized structural design.

[0160] In some embodiments, the fresh air inlet 801 is located below the main body 1000 in the height direction. It is understood that the fresh air inlet 801 needs to be connected to a duct to introduce outdoor air; this duct is referred to here as a fresh air inlet pipe. The fresh air inlet pipe can be a component of the wall-mounted air conditioner 10000, or it can be a fresh air inlet pipe separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0161] By positioning the fresh air inlet 801 at the bottom of the main body 1000, the fresh air inlet pipe can be connected to the fresh air inlet 801 from below. The connection extends roughly 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 shape. Furthermore, the portion of the fresh air volute 8 that houses the fresh air fan 6 is circular. Since the axis of the fresh air volute 8 extends along the length of the heat exchange fan 41, there is free space on both the front and rear sides of the bottom of this circle. This space can be used to set up the fresh air inlet 801 to connect to the fresh air inlet pipe. Thus, the connection between the fresh air inlet pipe and the fresh air inlet 801 can be placed in this free space without occupying additional space, thereby controlling the height of the main body 1000.

[0162] In some embodiments, the exhaust outlet 902 is located below the main body 1000 in the height direction. It is understood that the exhaust outlet 902 needs to be connected to a duct to guide indoor air to the outside; this duct is referred to here as an exhaust outlet pipe. The exhaust outlet pipe can be a component of the wall-mounted air conditioner 10000, or it can be an exhaust outlet pipe separately configured by the user after purchasing the wall-mounted air conditioner 10000.

[0163] The exhaust outlet 902 is located below the main body 1000, and the exhaust pipe can be connected to the exhaust outlet 902 from below. The connection extends roughly in the vertical direction, rather than in the front-back direction, which would make the main body 1000 too thick, so that the wall-mounted air conditioner 10000 can still maintain a slim and lightweight shape. Moreover, the part of the exhaust volute 9 that houses the exhaust fan 7 is circular. Since the axis of the exhaust volute 9 extends along the length of the heat exchange fan 41, there is free space on both the front and rear sides of the bottom. Furthermore, based on the axial air intake and radial air exhaust characteristics of the exhaust fan 7, the diffuser section of the exhaust volute 9 can be arranged roughly in the vertical direction and can be placed in the aforementioned front or rear free space.

[0164] An exhaust outlet 902 is provided here to connect to an exhaust pipe, so that the connection between the exhaust pipe and the exhaust outlet 902 can be placed in this empty space without occupying additional space, thus controlling the height of the main body 1000.

[0165] In some embodiments, the wall-mounted air conditioner 10000 may include: a fresh air inlet pipe connected to a fresh air inlet 801 and an exhaust outlet pipe connected to an exhaust outlet 902. A pipe clearance opening is provided on the bottom wall of the casing 1, through which the fresh air inlet pipe and exhaust outlet pipe pass and extend from the bottom of the main body 1000. The fresh air inlet pipe and exhaust outlet pipe are two independent pipes, which helps to separate the fresh air flow path and the exhaust air flow path, preventing them from intersecting and reducing the risk of air leakage caused by cross-flow.

[0166] A pipe avoidance opening is provided on the bottom wall of the main body 1000 to facilitate the installation of the aforementioned pipes and ensure the aesthetic appearance of the main body 1000. The fresh air inlet pipe and the exhaust outlet pipe are connected from the bottom of the main body 1000, which does not affect the upper area of ​​the wall-mounted air conditioner 10000 after it is hung on the indoor wall. That is, the fresh air inlet pipe and the exhaust outlet pipe will not interfere with the rear wall or the upper ceiling, making the installation of the wall-mounted air conditioner 10000 more convenient and quick.

[0167] In some embodiments, the fresh air inlet 801 is oriented upwards. For example, the air inlet direction of the fresh air inlet 801 is perpendicular to the length direction of the heat exchange fan 41. In this way, after a bidirectional ventilation assembly is installed at the end of the wall-mounted air conditioner 10000, when a fresh air inlet pipe is connected to the fresh air inlet 801, the fresh air inlet pipe will not cause the wall-mounted air conditioner 10000 to be excessively elongated.

[0168] In some embodiments, the fresh air inlet 801 is located at the bottom of the main body 1000 and is disposed near the rear side, so that after the fresh air inlet 801 is connected to the fresh air introduction pipe, it is convenient for the fresh air introduction pipe to be arranged close to the wall.

[0169] In some embodiments, the exhaust outlet 902 is oriented downwards. For example, the exhaust outlet 902 is perpendicular to the length direction of the heat exchange fan 41. This way, when a bidirectional ventilation assembly is installed at the end of the wall-mounted air conditioner 10000, the exhaust outlet pipe will not cause the wall-mounted air conditioner 10000 to be excessively elongated when connected to the exhaust outlet 902.

[0170] In some embodiments, the exhaust outlet 902 is located at the bottom of the main body 1000 and is disposed near the rear side, so that after the exhaust outlet 902 is connected to the exhaust pipe, the exhaust pipe can be arranged close to the wall.

[0171] Of course, some embodiments may not be limited to this, such as Figure 1 As shown, the duct clearance opening 104 can also be located on the side wall of the housing 1. The fresh air inlet duct connects to the fresh air inlet 801 from below the main body 1000, bends and extends laterally, then extends out from the duct clearance opening 104 on the side wall of the housing 1, and then extends outdoors. The exhaust outlet duct connects to the exhaust outlet 902 from below the main body 1000, bends and extends laterally, then extends out from the duct clearance opening 104 on the side wall of the housing 1, and then extends outdoors.

[0172] It is understandable that the main body 1000 is usually equipped with a refrigerant pipe and a drain pipe at one end in the length direction. The refrigerant pipe is used to connect the indoor heat exchanger 2 to the outdoor compressor and outdoor heat exchanger, and the drain pipe is used to drain the condensate generated inside the wall-mounted air conditioner 10000.

[0173] The duct clearance opening 104 is set on the side wall of the casing 1. Then, the fresh air inlet pipe and the exhaust outlet pipe are laid horizontally and led out, making it easy to place at least one of the fresh air inlet pipe and the exhaust outlet pipe alongside the drain pipe and the refrigerant pipe. In this way, the multiple pipes are wrapped with an external bundle or strap, so that the multiple pipes appear as a single pipe. This reduces the number of connecting pipes on the wall-mounted air conditioner 10000 after installation, resulting in a simple appearance. This not only facilitates assembly but also avoids the risk of multiple pipes bumping into each other.

[0174] In some embodiments, such as Figure 8 and Figure 11 As shown, the exhaust fan 7 forms a receiving groove V07 at the radial center, and at least a portion of the stator portion 51, at least a portion of the rotor portion 52, and at least a portion of the motor housing 53 of the second motor 5 are housed in the receiving groove V07.

[0175] For example, the hub of the exhaust fan 7 forms a receiving groove V07. At this time, the main body of the second motor 5 (i.e., the stator 51 and the rotor 52) and the motor housing 53 can be placed in the center of the exhaust fan 7 without obstructing the flow of exhaust air. The hub space of the exhaust fan 7 can be fully utilized, reducing the space occupied by the second motor 5 on the outside.

[0176] Furthermore, the hub of the exhaust fan 7 has a protective function on the outside of the second motor 5, and it can also make the center of gravity of the exhaust fan 7 as close as possible to the center of the rotor 52. As a result, the bending moment generated by the exhaust fan 7 on the second motor 5 is small, the sway of the exhaust fan 7 is small when it rotates, and the exhaust fan 7 operates stably with low energy consumption.

[0177] In some embodiments, such as Figure 1 As shown, a housing air outlet 105 is provided on the housing 1. The housing air outlet 105 is set to correspond to the fresh air outlet 802 of the fresh air volute 8, so that the fresh air discharged from the fresh air outlet 802 is discharged from the housing air outlet 105.

[0178] In some embodiments, the fresh air outlet 802 is located at the front of the main body 1000, and the casing outlet 105 can be correspondingly located on the front side of the casing 1, which facilitates the output of fresh air from the front of the main body 1000. When the wall-mounted air conditioner 10000 is installed on the wall, especially at a high position on the wall, there are few obstructions in front, and the air outlet from the front can ensure a large air supply area for fresh air.

[0179] In some embodiments, the fresh air outlet 802 is located at the top of the main body 1000, and the housing outlet 105 can be correspondingly set on the top wall of the housing 1. In this way, the fresh air is delivered towards 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 and expands the air delivery area.

[0180] Furthermore, since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the position of the heat exchange air inlet 101 on the casing 1 is relatively high, some of the fresh air blown out from the top of the fresh air outlet 802 can be drawn back into the accommodating cavity V1 through the heat exchange air inlet 101 and flow through the indoor heat exchanger 2.

[0181] This setup facilitates the rapid arrival of fresh air at room temperature, enhancing comfort when the fresh air is introduced. It also promotes thorough mixing of the fresh air with the indoor air flowing through the indoor heat exchanger 2, ensuring that the air blown into the room from the heat exchange outlet 102 is generally fresh and improving the uniformity of fresh air distribution within the room.

[0182] In some embodiments, the fresh air outlet 802 is located below the main body 1000 to guide fresh air forward and downward into the room. Correspondingly, the housing outlet 105 can be located below the housing 1.

[0183] 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 fresh air from below, making the air outlet area of ​​the casing air outlet 105 close to or even partially overlap with the air outlet area of ​​the heat exchange air outlet 102. This is beneficial for the fresh air to mix with the indoor air after heat exchange, improving the uniformity of the fresh air after mixing in the indoor air, and allowing the fresh air to absorb the cold or heat of the indoor air after heat exchange, making the fresh air temperature approach the indoor temperature and improving the comfort of airflow.

[0184] Furthermore, the air outlet 802 is in the opposite direction to the air inlet 101, so fresh air will not be drawn into the air inlet 101. This reduces the proportion of fresh air intake at the air inlet 101, resulting in a larger total air volume output from the wall-mounted air conditioner 10000 and improving the overall air circulation efficiency of the indoor air.

[0185] Furthermore, 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 supply. This achieves a visual effect of fresh air supply, which helps to improve people's experience.

[0186] 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. This allows the fresh air to flow forward and downward, ensuring that the fresh air can reach the ground and also that the fresh air can reach a sufficiently long distance.

[0187] For example, such as Figure 1 and Figure 3 As shown, the housing 1 has an air guide grille 16 at the housing air outlet 105 to adjust the direction of fresh air output.

[0188] In some embodiments, such as Figure 3 As shown, the exhaust air inlet 901 is formed on the exhaust volute 9, and the axial direction of the exhaust air inlet 901 is arranged along the length direction of the heat exchange fan 41. That is to say, the exhaust air inlet 901 is directly opposite the axial air inlet end of the exhaust fan 7, so that the air resistance of the exhaust fan 7 entering through the exhaust air inlet 901 is small, which helps to ensure the exhaust air volume. When exhaust air intake is easy, a smaller exhaust fan 7 can be selected to further reduce the size of the bidirectional ventilation assembly.

[0189] For example, the axial direction of the exhaust air inlet 901 is towards the indoor heat exchanger 2, that is, the air inlet area of ​​the exhaust air inlet 901 is towards the indoor heat exchanger 2. In this way, the exhaust air inlet 901 is close to the heat exchange air inlet 101, and the air volume at the heat exchange air inlet 101 is large. Part of the air entering the casing 1 from the heat exchange air inlet 101 can enter the exhaust volute 9 through the exhaust air inlet 901, so that the air volume at the exhaust air inlet 901 is sufficient.

[0190] In some embodiments, such as Figure 1 As shown, a first ventilation duct V04 is formed between the heat exchange air inlet 101 and the exhaust air inlet 901. The exhaust fan 7 rotates and drives indoor air to enter the first ventilation duct V04 through the heat exchange air inlet 101, and causes indoor air to enter the exhaust volute 9 through the exhaust air inlet 901.

[0191] In other words, there is no need for a physical pipe to connect the heat exchange air inlet 101 and the exhaust air inlet 901; airflow is drawn in from the top solely by air pressure.

[0192] In some embodiments, the exhaust fan 7 may be made of plastic, thus being lightweight and low-cost. Of course, some embodiments are not limited to this, and the exhaust fan 7 may also be made of resin, metal, etc.

[0193] In some embodiments, the exhaust fan 7 may be a plastic component, thus being lightweight and low-cost. In some embodiments, the exhaust fan 7 may also be a resin component, a metal component, or the like.

[0194] In some embodiments, the fresh air fan 6 may be made of plastic, thus being lightweight and low-cost. In some embodiments, the fresh air fan 6 may also be made of resin, metal, or the like.

[0195] Similarly, the exhaust volute 9 can be made of plastic, thus being lightweight and low-cost. For example, the exhaust volute 9 can be an injection-molded part. In some embodiments, the exhaust volute 9 can also be made of metal, etc.

[0196] The fresh air volute 8 can be made of plastic, thus being lightweight and low-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 made of metal or the like.

[0197] 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. This satisfies the condition that S1 > S2.

[0198] For example, S1 = πD1 × h1, where D1 is the outer diameter of the fresh air fan 6 and h1 is the total axial thickness of the fresh air impeller 61 and the fresh air blades 62 on the fresh air fan 6.

[0199] The fresh air fan 6 includes a fresh air impeller 61 and fresh air blades 62. The fresh air blades 62 are located on the outer edge of the fresh air impeller 61 and extend along the axial direction of the fresh air impeller 61. The total axial thickness of the fresh air impeller 61 and the fresh air blades 62 is h1. Here, the fresh air impeller 61 on the fresh air fan 6 can be one or at least two distributed at intervals along the axial direction. Each fresh air impeller 61 can have only one ring of fresh air blades 62 on one side or one ring of fresh air blades 62 on each side. h1 is the maximum dimension of the fresh air fan 6 in the axial direction.

[0200] S2 = πD2 × h2, where D2 is the outer diameter of the exhaust fan 7 and h2 is the total axial thickness of the exhaust wheel 71 and the exhaust blades 72 on the exhaust fan 7.

[0201] The exhaust fan 7 includes an exhaust wheel 71 and exhaust blades 72. The exhaust blades 72 are located on the outer edge of the exhaust wheel 71 and extend along the axial direction of the exhaust wheel 71. The total axial thickness of the exhaust wheel 71 and the exhaust blades 72 is h2. Here, the exhaust fan 7 can have one exhaust wheel 71 or at least two that are spaced apart along the axial direction. Each exhaust wheel 71 can have one ring of exhaust blades 72 on only one side or one ring of exhaust blades 72 on each side. When all the exhaust wheels 71 and exhaust blades 72 are projected vertically onto the axis of the exhaust fan 7, the distance between the two farthest points in the projection is equal to h2.

[0202] With this configuration, the outer curved surface area of ​​the fresh air fan 6 is large, while the outer curved surface area of ​​the exhaust fan 7 is small, which helps to achieve a larger fresh air volume within the limited space of the whole unit.

[0203] For example, according to the structural and functional requirements designed 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. This is beneficial because the area swept by the blades of the fresh air fan 6 when rotating is larger than the area swept by the blades of the exhaust fan 7 when rotating. Thus, the fresh air volume is greater than the exhaust air volume, which meets the design requirements of the wall-mounted air conditioner 10000. That is, drawing air from the open outdoor space and delivering it indoors consumes less energy compared to drawing air out of a relatively enclosed indoor space and exhausting it outdoors. Furthermore, the high freshness of the outdoor air makes drawing in outdoor air and blowing it indoors more beneficial for replenishing the indoor space with fresh air, increasing the oxygen content and reducing the carbon dioxide content.

[0204] The exhaust outlet 902 of the exhaust duct V02 and the fresh air outlet 802 of the fresh air duct V01 are offset on the outer periphery of the bidirectional ventilation assembly. This facilitates the connection of the exhaust outlet duct to the exhaust outlet 902 and the fresh air inlet duct to the fresh air inlet 801, and also ensures that the flow paths of fresh air and exhaust air within the bidirectional ventilation assembly do not intersect. The offset 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.

[0205] For example, such as Figure 7 As shown, the fresh air volute 8 has a fresh air diffusion section 805, and the fresh air outlet 802 is located at the end of the fresh air diffusion section 805. That is to say, the part of the fresh air volute 8 from its volute tongue to the fresh air outlet 802 is the fresh air diffusion section 805.

[0206] For example, the volute tongue of the fresh air volute 8 and the volute tongue of the exhaust volute 9 are offset in the circumferential direction of the second motor 5.

[0207] This design makes it easy to offset the exhaust outlet 902 of the exhaust duct V02 and the fresh air outlet 802 of the fresh air duct V01 on the outer periphery of the bidirectional ventilation component. This facilitates the connection of the exhaust outlet 902 to the exhaust outlet and the fresh air inlet 801 to the fresh air inlet, avoiding interference caused by the two pipe joints being too close together. This design not only facilitates assembly but also makes sealing easier.

[0208] Furthermore, in some embodiments, the exhaust outlet 902 is oriented downwards, while the fresh air outlet 802 is oriented forwards. This not only allows the connection points of the exhaust outlet 902 and the fresh air outlet 802 to be staggered, but also facilitates the connection of the exhaust outlet 902 (facing downwards) to the exhaust and fresh air inlet pipes, making it easier for them to be installed against the wall. The fresh air outlet 802 (facing forwards) allows fresh air to be delivered forward, resulting in a wider fresh air delivery range.

[0209] For example, the exhaust outlet 902 is located on the rear side of the exhaust volute 9, and the exhaust direction of the exhaust outlet 902 is set downward. In this way, not only will the exhaust outlet pipe not cause the wall-mounted air conditioner 10000 to be excessively elongated when connected to the exhaust outlet 902, but also the fact that the exhaust outlet 902 is located on the side of the exhaust volute 9 against the wall makes it easier to make the main body 1000 into a shape that is wider at the back and narrower at the front.

[0210] By designing the main body of the 10000 as wider at the back and narrower at the front, with the wider back mounted against the wall, people tend to see the narrower front when observing the wall-mounted air conditioner 10000. This helps create the impression that the wall-mounted air conditioner 10000 is lighter and thinner. This reduces the feeling of heaviness of the wall-mounted air conditioner 10000, thereby reducing the oppressive feeling that would result from mounting it on the wall.

[0211] In some embodiments, the fresh air outlet 802 is oriented downwards while being tilted forward. This allows the wall-mounted air conditioner 10000 to expel fresh air forward, ensuring that the fresh air reaches the ground and travels a sufficient distance.

[0212] For example, the fresh air outlet 802 is located in front of the exhaust air outlet 902. This makes the fresh air outlet 802 and the exhaust air outlet 902 more offset, which is more conducive to reducing mutual interference and facilitating pipe connection.

[0213] 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 greater than the exhaust air volume.

[0214] Suitable, such as Figure 14 As shown, the fresh air volute 8 includes a first volute enclosure 812 surrounding the radially outer side of the fresh air fan 6, and the exhaust volute 9 includes a second volute enclosure 906 surrounding the radially outer side of the exhaust fan 7. The diameter of the first volute enclosure 812 is larger than the diameter of the second volute enclosure 906. This allows for a more compact assembly, reducing the overall space required.

[0215] Moreover, the second volute enclosure 906 can provide more space on the radially outer side, allowing air to flow within the housing 1 on the radially outer side of the exhaust volute 9. This allows more air to enter the exhaust volute 9 when it draws in air from the exhaust inlet 901, which helps to increase the exhaust air volume.

[0216] In some embodiments, the fresh air inlet 801 is located below the 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 makes the fresh air inlet 801, the fresh air outlet 802, the exhaust outlet 902, and the connecting pipe positions compact, which helps to reduce the overall size.

[0217] In some embodiments, such as Figure 1 As shown, a housing air outlet 105 is provided on the housing 1, and the housing air outlet 105 is provided corresponding to the fresh air outlet 802. Figure 3 As shown, the wall-mounted air conditioner 10000 may include an expansion pipe 19 connected between the air outlet 105 of the casing and the fresh air outlet 802. The flow area of ​​the expansion pipe 19 increases in the direction towards the air outlet 105 of the casing. That is, the expansion pipe 19 causes the fresh air outlet to undergo a diffusion process again, thereby further increasing the fresh air pressure and further increasing the air supply range.

[0218] For example, the exhaust outlet 902 and the fresh air inlet 801 are located below the main body 1000 and close to the rear side, so that the connection will not interfere too much with the expansion pipe 19.

[0219] In some embodiments, the dimension L3 of the housing outlet 105 (e.g., along the length of the heat exchange fan 41) is... Figure 1 (As shown) is greater than the sum of the thicknesses of the fresh air fan 6 and the exhaust fan 7. Here, as... 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 air outlet 105 of the casing. This design allows the air outlet 105 of the casing to be longer along the length of the heat exchange fan 41, making full use of the space provided by the bidirectional ventilation assembly in this direction. This facilitates extending the fresh air outlet in this direction, increasing the width of the fresh air outlet, and allowing fresh air to be delivered to a wider area.

[0220] In some embodiments, such as Figure 11 As shown, the total axial thickness of the exhaust fan 7, including the exhaust wheel 71 and the exhaust blades 72, is h2. Figure 12 As shown, the total axial thickness of the fresh air impeller 61 and fresh air blades 62 on the fresh air fan 6 is h1, for example, h2 < h1. This configuration 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, resulting in greater structural strength and the ability to withstand greater torque. Meanwhile, the exhaust fan 7 requires less airflow, and the smaller axial thickness of its main body allows for a reduction in exhaust airflow, while also reducing the axial dimensions of the bidirectional ventilation assembly.

[0221] In some embodiments, such as Figure 10 As shown, the total axial thickness of the stator 51, rotor 52, and motor housing 53 is h3. The exhaust fan 7 includes an exhaust wheel 71 and exhaust blades 72. The exhaust blades 72 are located on the outer edge of the exhaust wheel 71 and extend along the axial direction of the exhaust wheel 71. The total axial thickness of the exhaust wheel 71 and exhaust blades 72 is h2. This satisfies the condition that h3 > h2. It is understandable that the second motor 5 needs to drive both the fresh air fan 6 and the exhaust fan 7 simultaneously. Although the exhaust airflow is designed to be relatively small, the fresh airflow is designed to be relatively large. Therefore, the total axial thickness of the stator 51, rotor 52, and motor housing 53 is set to be greater than the axial thickness of the main body of the exhaust fan 7 to ensure that the second motor 5 can support the rotation of both fans and improve the supporting force of the second motor 5.

[0222] For example, the exhaust fan 7 may include a protrusion 74, which is provided on the exhaust wheel 71. The center of the protrusion 74 is located on the axis of the exhaust fan 7, and the protrusion 74 extends relative to the exhaust wheel 71 toward the fresh air fan 6, so that the side of the protrusion 74 near the second motor 5 forms a receiving groove VO7 for the second motor 5, and at least a portion of the stator portion 51 and at least a portion of the rotor portion 52 are accommodated in the receiving groove VO7.

[0223] Due to the limited overall length, the axial dimension of the bidirectional ventilation assembly is also limited. To ensure power efficiency, the axial thickness of the second motor 5 is fixed. To increase the fresh air volume, the fresh air blades 62 of the fresh air fan 6 extend towards the second motor 5, resulting in a recess in the central area of ​​the fresh air blades 62. To avoid the fresh air blades 62 of the fresh air fan 7, the exhaust blades 72 are positioned away from the fresh air blades 62 relative to the exhaust wheel 71. A protrusion 74 is formed on the exhaust wheel 71, which extends into the recessed space in the central area of ​​the fresh air blades 62, thereby reducing the axial dimension of the bidirectional ventilation assembly.

[0224] In some embodiments, the total axial thickness of the stator 51, rotor 52, and motor housing 53 is h3, and 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 ensures a large fresh air volume without requiring the second motor 5 to occupy too much duct space.

[0225] In some embodiments, such as Figure 11 and Figure 14 As shown, the exhaust fan 7 includes an exhaust wheel 71 and an exhaust blade 72. The exhaust blade 72 is located on the outer edge of the exhaust wheel 71 and extends along the axial direction of the exhaust wheel 71 in a direction away from the fresh air fan 6.

[0226] Reference Figure 5 and Figure 15 The fresh air volute 8 includes a first volute 81 and a second volute 82. The first volute 81 is located on the side of the exhaust volute 9 away from the heat exchange fan 41, and the first volute 81 is detachably connected to the exhaust volute 9. The second volute 82 is located on the side of the first volute 81 away from 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.

[0227] Reference Figure 14 The first volute 81 includes a first volute end plate 811 and a first volute surrounding plate 812, the first volute surrounding plate 812 extending along the edge of the first volute end plate 811 in a direction away from the exhaust fan 7.

[0228] For example, a recess 813 is formed in the central part of the first volute end plate 811, the recess 813 is recessed towards the fresh air fan 6, and a perforation 814 is provided in the center of the recess 813. At least a portion of the protrusion 74 is located in the recess 813, and the output shaft 532 is connected to the fresh air fan 6 through the perforation 814.

[0229] In some embodiments, the fresh air volute 8 is divided into at least a first volute 81 and a second volute 82 along the axial direction and processed separately. This reduces the difficulty of manufacturing and assembly, and the separate manufacturing of such a complex housing facilitates quality control. 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.

[0230] A protrusion 74 is provided at the center of the exhaust fan disc 71, and a recess 813 is formed at the center of the first volute end plate 811. On the one hand, the hub of the exhaust fan 7 forms the protrusion 74 to accommodate the second motor 5, and the protrusion 74 can improve the structural strength of the exhaust fan 7. On the other hand, the main body of the second motor 5, by being assembled in the protrusion 74, occupies more of the exhaust air duct V02 and less of the fresh air duct V01, which matches the design that the fresh air volume is greater than the exhaust air volume. Only the output shaft 532 passes through the first volute end plate 811, which helps to seal the air, reduces the probability of fresh air and exhaust air flowing between each other, and reduces airflow disturbance.

[0231] In some embodiments, to enhance the reliability of the wall-mounted air conditioner 10000, the external dimensions of the main body 1000 are strictly controlled. This not only minimizes the gaps between internal parts, making them less prone to loosening, but also allows for shorter air ducts and a smaller casing 1, thereby reducing the overall weight of the main body 1000 and making it appear thinner and lighter.

[0232] When controlling the dimensions of the main body 1000, the key is to reduce the structural dimensions of the bidirectional ventilation assembly. The most important thing to ensure in the bidirectional ventilation assembly is that the second motor 5 can output sufficient power to meet the requirements of exhaust air volume and fresh air volume. Therefore, the thickness of the second motor 5, especially the total axial thickness h3 of the stator 51, rotor 52 and motor housing 53, needs to be large enough. The total axial thickness h3 of the stator 51, rotor 52 and motor housing 53 is greater than the axial thickness h2 of the main body of the exhaust fan 7.

[0233] After the second motor 5 occupies a certain thickness, in order to avoid the structural size of the bidirectional ventilation assembly from being excessively expanded, when optimizing the exhaust fan 7, a protrusion 74 is provided at the center of the exhaust wheel 71. The protrusion 74 extends relative to the exhaust wheel 71 towards the fresh air fan 6, so that the side of the protrusion 74 near the second motor 5 forms a receiving groove V07 for the second motor 5. At least a part of the stator part 51 and at least a part of the rotor part 52 are accommodated in the receiving groove V07, and the central part of the first volute end plate 811 of the first volute 81 is formed into a recess 813 facing into the fresh air fan 6, so that at least a part of the protrusion 74 is located in the recess 813.

[0234] This configuration also helps to reduce the distance between the main body of the second motor 5 and the fresh air fan 6, thereby reducing the axial distance between the fresh air fan 6 and the main body of the second motor 5, reducing the bending moment generated by the fresh air fan 6 on the output shaft 532. When the second motor 5 moves, the fresh air fan 6 and the exhaust fan 7 have a high degree of coaxiality and are not easy to shake, which can avoid wear and vibration caused by friction with the volute.

[0235] In some embodiments, refer to Figure 8The fresh air fan 6 includes a fresh air recess 63, which is disposed on the fresh air impeller 61. The fresh air recess 63 extends away from the exhaust fan 7 relative to the fresh air impeller 61, and at least a portion of the recess 813 is located within the fresh air recess 63. This arrangement helps to further reduce the distance between the main body of the second motor 5 and the fresh air fan 6, thereby reducing the axial distance between the fresh air fan 6 and the main body of the second motor 5, reducing the bending moment generated by the fresh air fan 6 on the output shaft 532, and ensuring high coaxiality between the fresh air fan 6 and the exhaust fan 7 when the second motor 5 moves, making it less prone to shaking and avoiding wear and vibration caused by friction with the volute.

[0236] In some embodiments, refer to Figure 8 The exhaust volute 9 and the fresh air volute 8 are connected, sharing a first volute end plate 811, which separates the fresh air duct V01 and the exhaust air 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 bidirectional ventilation assembly and minimizing its space occupation within the wall-mounted air conditioner 10000, thus contributing to the overall slim and lightweight design of the wall-mounted air conditioner 10000.

[0237] For example, the first volute end plate 811 is a single-layer plate, which simplifies the structure and helps to reduce the overall axial dimension.

[0238] In some embodiments, refer to Figure 8 , Figure 11 and Figure 14 The exhaust fan 7 includes an exhaust wheel 71 and exhaust blades 72. The exhaust wheel 71 is coaxially mounted with the second motor 5 and connected to the motor housing 53 of the second motor 5. Multiple exhaust blades 72 are mounted on the exhaust wheel 71 and extend only in a direction away from the fresh air fan 6. These multiple exhaust blades 72 are arranged circumferentially on the exhaust wheel 71. For example, the exhaust fan 7 may include a single layer of centrifugal blades, thus achieving a simple structure and low cost while meeting small airflow requirements. Furthermore, the blade cylinder formed by the circumferential arrangement of the exhaust blades 72 along the exhaust wheel 71 is open on the side facing the axial air intake end, facilitating airflow intake, reducing suction resistance, and ensuring sufficient exhaust airflow.

[0239] In some embodiments, refer to Figure 8 , Figure 12 and Figure 14The fresh air fan 6 includes a fresh air impeller 61 and fresh air blades 62. The fresh air impeller 61 is coaxially arranged with the second motor 5, and the fresh air impeller 61 is connected to the output shaft 532 of the second motor 5. The fresh air blades 62 include a first fresh air blade 621, which extends from the fresh air impeller 61 in a direction away from the exhaust fan 7. The blade tube formed by the circumferential arrangement of the first fresh air blades 621 is open on the side facing the axial air intake end, which facilitates airflow intake, reduces airflow resistance, and ensures the intake volume of fresh air.

[0240] For example, refer to Figure 8 , Figure 12 and Figure 14 The fresh air blade 62 may include a second fresh air blade 622, which extends from the fresh air impeller 61 toward the exhaust fan 7. Thus, the fresh air fan 6 includes double-layer centrifugal blades, and this double-layer centrifugal blade structure design helps increase the overall structural strength of the centrifugal fan while meeting high airflow requirements.

[0241] In some embodiments, along 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 intake end, therefore its axial length is greater, which is beneficial for obtaining a larger fresh air intake volume using the first fresh air blade 621. Using a shorter second fresh air blade 622 is beneficial for supplementing the fresh air intake. Furthermore, the longer first fresh air blade 621 on the windward side is beneficial for reducing noise while ensuring sufficient fresh air volume.

[0242] In some embodiments, a disc hole 612 is formed on the fresh air impeller 61, and one side of the second fresh air blade 622 can draw in air through the disc hole 612. The distance from the disc hole 612 to the center of the fresh air impeller 61 is less than the distance from the fresh air blade 62 to the center of the fresh air impeller 61.

[0243] For example, the disc hole 612 is closer to the center of the fresh air disc 61 than the fresh air blade 62. This is beneficial for the second fresh air blade 622 to guide the airflow axially into the space where the second fresh air blade 622 is located when it draws air in from the disc hole 612, thus reducing the turbulence caused by competing with the first fresh air blade 621 for airflow.

[0244] In some embodiments, refer to Figure 5 , Figure 8 and Figure 15The second volute 82 includes a second volute half 821 and a fan cover 822. The second volute half 821 is located on the side of the first volute 81 away from the exhaust fan 7, and the second volute half 821 is detachably connected to the first volute 81. An axial ventilation port 8211 is provided at the radial center of the second volute half 821. A volute cavity V011 is formed between the second volute half 821 and the first volute 81. The fresh air fan 6 is located in the volute cavity V011, and the axial air inlet end of the fresh air fan 6 is arranged facing the axial ventilation port 8211. The second volute half 821 and the first volute 81 together define a fresh air outlet 802.

[0245] In some embodiments, the volute cavity V011 and the indoor heat exchanger 2 are separated by the exhaust volute 9. In this way, the distance between the indoor heat exchanger 2 and the volute cavity V011 is large, the ability of the cooling capacity generated by the indoor heat exchanger 2 to reduce the air temperature in the volute cavity V011 is reduced, and the air in the volute cavity V011 is not easily overcooled to produce condensate.

[0246] The fan cover 822 is located on the side of the second volute half 821 away from the exhaust fan 7, and the fan cover 822 is detachably connected to the second volute half 821. (Refer to...) Figure 8 The cavity enclosed by the fan cover 822 and the second volute half 821 is the fresh air cavity V012, and the fresh air inlet 801 is enclosed by the fan cover 822 and the second volute half 821.

[0247] With this configuration, a fresh air cavity V012 is formed at the air inlet of the fresh air fan 6. The fresh air cavity V012 can cover the axial air inlet of the fresh air fan 6. The fresh air cavity V012 can contain air, allowing air to enter the fresh air fan 6 vertically along the axial direction from the fresh air cavity V012, thereby improving the air intake efficiency of the fresh air fan 6 and reducing air intake loss.

[0248] For example, the fan shroud 822 is located on the side of the second volute half 821 away from the indoor heat exchanger 2, thus separating the fresh air cavity V012 from the indoor heat exchanger 2. The greater distance between the indoor heat exchanger 2 and the fresh air cavity V012 reduces the ability of the cooling capacity generated by the indoor heat exchanger 2 to lower the air temperature inside the fresh air cavity V012, making it less likely for the air inside the fresh air cavity V012 to become overcooled and condensate.

[0249] In some embodiments, refer to Figure 3 The wall-mounted air conditioner 10000 may include: purification component 11, see reference. Figure 8 The purification component 11 is installed in the fresh air duct V01 to purify the fresh air blown into the room and improve the cleanliness of the indoor air.

[0250] For example, the purification component 11 is installed inside the fresh air cavity V012, for example, the purification component 11 is located at the axial air inlet end of the fresh air fan 6. The rotation of the fresh air fan 6 can cause outdoor air to enter the fresh air volute 8 from the fresh air inlet 801, and can cause the outdoor air entering the fresh air volute 8 to be blown through the purification component 11, and then enter the room from the fresh air outlet 802.

[0251] In this way, the fresh airflow can blow almost vertically over the purification component 11, further reducing the consumption of fresh air intake and thus increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in cooling mode, causing condensation to form in the fresh air, the condensation can remain on the purification component 11 as the air flows through it, further preventing water from being blown out when the fresh air device is venting.

[0252] In some embodiments, the purification component 11 is connected to the second volute 82, which facilitates the assembly of the purification component 11 and prevents it from interfering with the fresh air fan 6.

[0253] For example, such as Figure 15 As shown, the purification component 11 includes a filter 111, which covers the axial vent 8211. The filter 111 covers the entire air intake end of the fresh air fan 6, providing a large coverage area and excellent filtration. The filter 111's placement helps ensure sufficient contact area with the flowing air, while also being lightweight and producing low noise. For example, the filter 111 may be made of HEPA mesh, thus possessing strong adsorption capacity and excellent dust filtration efficiency.

[0254] For example, filter 111 is plate-shaped, so filter 111 is relatively thin and will not take up too much space when placed in the two-way ventilation assembly.

[0255] For example, filter 111 is square, which makes it easy to position and install filter 111.

[0256] In some embodiments, the filter 111 is a square mesh, and the side length of the filter 111 is greater than the diameter of the axial vent 8211. The square mesh is easy to position during fixing, does not easily shake after fixing, and is easy to process with 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.

[0257] 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 the side of the purification component 11 away from the fresh air fan 6, and the fresh air inlet 801 is connected to the cavity V0121.

[0258] For example, a purification component 11 is installed in the fresh air cavity V012 near the fresh air fan 6. The part of the fresh air cavity V012 away from the fresh air fan 6 is the cavity V0121. That is, the cavity V0121 is between the oncoming air from 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, reducing the air flow resistance.

[0259] Cavity V0121 is equivalent to the air intake negative pressure chamber of the fresh air fan 6. The design of the air intake negative pressure chamber has many advantages:

[0260] I. Improve air intake efficiency. For example, by setting up a negative pressure chamber to increase the buffer space on the intake side of the fresh air fan 6, it is easier for the fresh air fan 6 to draw in air, thereby increasing the air intake volume of the fresh air fan 6. Moreover, the existence of the negative pressure chamber allows the fresh air to be buffered and adjusted in the negative pressure chamber before entering the fresh air fan 6, reducing fluctuations and turbulence in the fresh air flow, which is beneficial to improving the air intake stability of the fresh air fan 6. Without the cavity V0121 and without the buffer space, the flow resistance increases, and the operating power consumption of the fresh air fan 6 will increase.

[0261] 2. Optimize airflow distribution. For example, the negative pressure chamber can buffer and guide the airflow, which is beneficial for drawing fresh air into the fan 6 along the axial direction.

[0262] Third, reduce airflow impact and absorb noise.

[0263] In this way, while increasing the air intake of the fresh air device, it also helps to improve the overall air intake reliability and stability.

[0264] In some embodiments, the fresh air volute 8 is also provided with an installation port 803, and the purification component 11 is detachably assembled into the installation port 803. This facilitates the removal of the purification component 11 when it is damaged or saturated, making it convenient for maintenance or replacement.

[0265] For example, such as Figure 15 As shown, the mounting port 803 is formed between the fan cover 822 and the second volute half 821. The purification component 11 can be detachably assembled into the fresh air cavity V012 through the mounting port 803. This allows the mounting port 803 to be set to a larger size, facilitating the installation of larger purification components 11. When the mounting port 803 is larger, it is formed by the fan cover 822 and the second volute half 821, with open half-openings on both sides, facilitating processing or demolding and resulting in a low scrap rate.

[0266] For example, such as Figure 3As shown, in the front-rear direction of the main body, the mounting port 803 is located on the front side of the main body 1000. When the purification component 11 is disassembled, it can be free from interference from the pipes connected to the fresh air inlet 801 and the exhaust outlet 902, which facilitates disassembly. For example, the front side of the housing 1 is provided with an openable panel (not shown in the figure). When the panel is opened or rotated upward, the mounting port 803 can be exposed, which facilitates the disassembly of the purification component 11.

[0267] It is also possible that in some designs, the mounting port 803 will be located at the bottom of the main body 1000.

[0268] In some embodiments, such as Figure 6 As shown, a purification air inlet 804 for connecting to the indoor environment is formed on the fresh air volute 8. The rotation of the fresh air fan 6 allows indoor air to enter the fresh air volute 8 through the purification air inlet 804 for purification by the purification component 11, and allows indoor air entering the fresh air volute 8 to enter the room through the fresh air outlet 802. In this way, indoor air can enter the fresh air duct V01 from the purification air inlet 804, be purified, and then enter the room through the fresh air outlet 802.

[0269] This design allows for air circulation and purification when indoor air is polluted. This eliminates the need to introduce fresh outdoor air, thus improving air quality. Because no fresh outdoor air is introduced, the purification process avoids sudden drafts of unheated cold or hot outdoor air, preventing discomfort caused by rapid temperature changes.

[0270] For example, the accommodating cavity V1 inside the housing 1, through the cooperation of internal structures, forms a first chamber V11 and a second chamber V12 within the accommodating cavity V1, such as... Figure 2 As shown.

[0271] like Figure 4 In some embodiments shown, an end plate 31 is provided on the base 3 near 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.

[0272] In other embodiments, the first chamber V11 and the second chamber V12 can also be formed directly by the housing 1. For example, a partition can be integrally formed inside the housing 1 to divide the accommodating cavity V1 into the first chamber V11 and the second chamber V12.

[0273] At this time, at least a portion of the second motor 5, the exhaust fan 7, the exhaust volute 9, and the fresh air volute 8 are located within the second chamber V12. For example, the purification air inlet 804 and the exhaust air inlet 901 are located on the same side of the air-blocking structure. The rotation of the fresh air fan 6 allows indoor air to enter the second chamber V12 from the heat exchange air inlet 101, and then from the purification air inlet 804 into the fresh air volute 8 for purification by the purification component 11. It also allows indoor air entering the fresh air volute 8 to enter the room from the fresh air outlet 802. This allows the purification air inlet 804 to be concealed within the second chamber V12, improving the aesthetic appearance of the wall-mounted air conditioner 10000. Furthermore, no connecting pipes are needed between the purification air inlet 804 and the heat exchange air inlet 101, reducing the number of parts, minimizing space occupied, and facilitating layout. For example, as... Figure 6 As shown, the purification air inlet 804 is located at the bottom of the fresh air volute 8 and faces downwards. It can be understood that the fresh air inlet 801 is located below the main body 1000, and both the fresh air inlet 801 and the purification air inlet 804 are located at the bottom of the fresh air volute 8 and extend downwards, facilitating manufacturing. Furthermore, in use, only one of them needs to be opened. Placing both the fresh air inlet 801 and the purification air inlet 804 at the bottom of the fresh air volute 8 allows for centralized control of the switches to select only one inlet to open, reducing the number of switches required.

[0274] In some embodiments, such as Figure 6 As shown, the air intake direction of the purification air inlet 804 is perpendicular to the length direction of the heat exchange fan 41. It can be understood that aligning the air intake direction of the purification air inlet 804 with the length direction of the heat exchange fan 41 keeps the air intake area of ​​the purification air inlet 804 further away from the exhaust air inlet 901, preventing excessive energy consumption due to their proximity. Furthermore, the different directions of the purification air inlet 804 and the exhaust air inlet 901 help expand the negative pressure area, facilitating the inflow of a large amount of indoor air into the negative pressure area and ensuring sufficient exhaust and fresh air volume.

[0275] In some embodiments, such as Figure 5 and Figure 8 As shown, the exhaust volute 9 includes an air guide ring 91, and the area enclosed by the air guide ring 91 forms an exhaust air inlet 901. The air guide ring 91 can effectively collect the dispersed airflow and converge it into a more concentrated airflow to be sent into the exhaust fan 7, making the air intake smoother and more efficient, and increasing the air intake volume of the exhaust fan 7.

[0276] Furthermore, the air guide ring 91, through its rationally designed shape and angle, allows airflow to enter the exhaust blades 72 of the exhaust fan 7 at the optimal angle, improving the working efficiency of the exhaust fan 7. When unstable airflow fluctuations are drawn in, the air guide ring 91 can stabilize the airflow, reducing turbulence and fluctuations, allowing the exhaust fan 7 to operate more smoothly. This can reduce noise and vibration, and extend the service life of the exhaust fan 7.

[0277] For example, the air guide ring 91 is a round tube shape, which is easy to process.

[0278] For example, the diameter of the air guide ring 91 decreases in the direction closer to the fresh air fan 6, and also decreases in the direction closer to the exhaust fan 7. As the diameter of the air guide ring 91 decreases, the channel through which air flows becomes narrower. According to fluid mechanics principles, at the same flow rate, a narrower channel increases the airflow velocity, thereby increasing wind speed and air volume. The reduced diameter of the air guide ring 91 also helps to concentrate the relatively dispersed airflow upstream, allowing the airflow to blow directly onto the center of the exhaust fan 7. The concentrated airflow is then driven radially by the exhaust blades 72 with less effort, and the concentrated airflow also contributes to the stability of the airflow.

[0279] For example, such as Figure 8 As shown, the exhaust fan 7 includes an exhaust wheel 71 and exhaust blades 72. The exhaust wheel 71 is connected to the motor housing 53 of the second motor 5, and the exhaust blades 72 are connected to the side of the exhaust wheel 71 away from the fresh air fan 6. Multiple exhaust blades 72 are arranged circumferentially along the exhaust wheel 71.

[0280] like Figure 8 and Figure 11 As shown, the edge of the exhaust blade 72 furthest from the exhaust wheel 71 is the blade side edge 721, and at least a portion of the blade side edge 721 is a transition section 7212. In the radially inward direction of the exhaust fan 7, the distance between the transition section 7212 and the exhaust wheel 71 decreases, and all exhaust blades 72 form a side edge recess 73 at the transition section 7212. The end of the air guide ring 91 is located within the side edge recess 73.

[0281] For example, the exhaust blades 72 of the exhaust fan 7 are concave blades, and both the air guide ring 91 and the concave blades are recessed towards the fresh air fan 6. The air guide ring 91 partially enters the side edge recess 73 formed by the concave blades. With this arrangement, the air guide ring 91 and the exhaust fan 7 can partially overlap in the axial direction, and there is no need to increase the axial dimension of the exhaust volute 9 while setting the air guide ring 91.

[0282] Furthermore, after the exhaust fan 7 rotates, the exhaust blades 72 form a funnel-shaped surface with a reduced diameter on the surface swept by the transition section 7212, which is conducive to the airflow concentrating towards the center and reducing the energy loss caused by airflow disturbance.

[0283] In some embodiments, such 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 is connected to the end of the transition section 7212 that is away from the axis of the exhaust fan 7. For example, the exhaust blade 72 has a large axial dimension near the outer edge, which can make full use of the space inside the exhaust duct V02 to drive the airflow, which is beneficial for the airflow to gain greater kinetic energy.

[0284] For example, the transition section 7212 and the straight section 7211 are connected by an arc, and the surface of the transition section 7212 and the exhaust wheel 71 are also connected by an arc. This reduces stress concentration and the risk of breakage at the surface connections of the transition section 7212 and the straight section 7211, and between the transition section 7212 and the exhaust wheel 71. Furthermore, the arc connection between the surface of the transition section 7212 and the exhaust wheel 71 allows it to directly face the end of the air guide ring 91, reducing the risk of scratching.

[0285] In some embodiments, the rotation surfaces of the blade side edges 721 of all exhaust blades 72 coincide, and the rotation surface is the surface swept by the blade side edge 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, it will not generate too much radial turbulence due to individual exhaust blades 72 with inconsistent shapes sweeping it, thus improving the stability of the airflow.

[0286] For example, such as Figure 17 As shown, the axial distance between the guide ring 91 and the transition section 7212 increases in the direction away from the axis of the exhaust fan 7. It is understandable that when the second motor 5 drives the exhaust fan 7 to rotate, the exhaust fan 7 will inevitably experience slight wobbling due to wear. The further away from the axis of the exhaust fan 7 it wobbles, the greater the wobbling amplitude. Therefore, increasing the axial distance between the guide ring 91 and the transition section 7212 in the direction away from the axis of the exhaust fan 7 helps reduce the risk of friction caused by the exhaust fan 7 contacting the guide ring 91 during wobbling.

[0287] In some embodiments, such as Figure 17As shown, the axial dimension of the air guide ring 91 is Z1, satisfying 2mm ≤ Z1 ≤ 12mm. It is understandable that when the axial dimension Z1 of the air guide ring 91 is less than 2mm, the flow path is too short during airflow convergence, and the airflow enters the exhaust fan 7 before it has fully converged, resulting in a weak airflow convergence effect and easy airflow dispersion. The exhaust fan 7 then requires more energy to guide the dispersed airflow to the center. Conversely, when the axial dimension Z1 of the air guide ring 91 is greater than 12mm, the air guide ring 91 occupies too much axial space within the exhaust volute 9, reducing the usable space for the exhaust fan 7 and thus decreasing the exhaust airflow. Therefore, limiting the axial dimension Z1 of the air guide ring 91 to between 2mm and 12mm ensures that while the air guide ring 91 converges the airflow, the exhaust fan 7 achieves sufficient exhaust airflow, thus achieving a large exhaust airflow with relatively low power consumption.

[0288] For example, the axial dimension Z1 of the air guide ring 91 can be 2mm, 3mm, 5mm, 8mm, 10mm, 12mm, etc.

[0289] For example, the axial dimension Z1 of the air guide ring 91 is 5mm. In this way, the air guide ring 91 provides a suitable flow path for the air intake at the exhaust air inlet 901, which can effectively gather the airflow. At the same time, the air guide ring 91 does not excessively encroach on the axial space inside the exhaust volute 9, allowing the exhaust fan 7 to utilize more space and ensuring that the exhaust fan 7 achieves sufficient exhaust air volume, thus achieving a large exhaust air volume with relatively low power consumption.

[0290] In some embodiments, such as Figure 17 As shown, the axial distance between the end of the air guide ring 91 and the exhaust blade 72 is Z2, which satisfies 1mm≤Z2≤5mm.

[0291] When the axial distance Z2 between the end of the guide ring 91 and the exhaust blade 72 is less than 1mm, the exhaust blade 72 is prone to hitting the guide ring 91 during rotation. This not only causes frictional losses, but the unbalanced force on the exhaust fan 7 after the collision may also cause greater shaking and more serious collisions. When the axial distance Z2 between the end of the guide ring 91 and the exhaust blade 72 is greater than 5mm, not only is the axial clearance between the end of the guide ring 91 and the exhaust blade 72 wasted, but the uncollected airflow can easily flow into the exhaust duct V02 from the axial clearance between the end of the guide ring 91 and the exhaust blade 72. In this way, the unworked airflow will crowd out the flow channel of the working airflow, reducing the operating efficiency of the exhaust fan 7.

[0292] Therefore, limiting the axial distance Z2 between the end of the air guide ring 91 and the exhaust blade 72 to between 1mm and 5mm helps to ensure the reliability and efficiency of the exhaust fan 7. For example, the axial distance Z2 between the end of the air guide ring 91 and the exhaust blade 72 can be 1mm, 2.5mm, 3mm, 3.5mm, 5mm, etc.

[0293] For example, the axial distance Z2 between the end of the air guide ring 91 and the exhaust blade 72 can be 3mm. This prevents the exhaust blade 72 from easily hitting the air guide ring 91 during rotation, thus avoiding the unbalanced force on the exhaust fan 7 that could cause greater shaking and more severe collisions after the exhaust blade 72 collides with the air guide ring 91. At the same time, the axial clearance between the end of the air guide ring 91 and the exhaust blade 72 is not excessively wasted; the airflow into the exhaust duct V02 from this clearance is relatively small, allowing more air to reach the exhaust fan 7, ensuring the efficient operation of the exhaust fan 7.

[0294] In some embodiments, such as Figures 16-17 As shown, the wall-mounted air conditioner 10000 may include a fixed bracket 17 and connecting arms 175. The fixed bracket 17 is located at the exhaust air inlet 901; in other words, a fixed bracket 17 is provided at the exhaust air inlet 901. The fixed bracket 17 is used to fix the second motor 5. The fixed bracket 17 is connected to the exhaust volute 9 through multiple connecting arms 175, and the second motor 5 is mounted on the fixed bracket 17. In this way, the fixed position of the second motor 5 has a small axial distance from the fresh air fan 6 and the exhaust fan 7, and the bending moment borne by the second motor 5 during operation is small, which helps to improve the rotational stability of the fresh air fan 6 and the exhaust fan 7.

[0295] For example, such as Figure 17 As shown, the fixed bracket 17 includes a bracket end plate 171 and a bracket surrounding plate 172. The bracket surrounding plate 172 extends along the edge of the bracket end plate 171 toward the exhaust fan 7. The bracket end plate 171 is connected to the exhaust volute 9. A mounting cavity 174 is defined between the bracket surrounding plate 172 and the bracket end plate 171, and a portion of the second motor 5 is housed 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 (i.e., both the bracket end plate 171 and the bracket surrounding plate 172 can support the second motor 5, improving the installation firmness of the second motor 5), but also protects the electronic connector at the end of the second motor 5.

[0296] For example, such as Figure 17 As shown, the bracket end plate 171 may be provided with a wire hole. The wire hole is used to assemble the wire harness connected to the second motor 5, and the connection between the wire harness and the second motor 5 is located inside the mounting cavity 174. In this way, when the wire harness connected to the second motor 5 is introduced from the outside, the wire harness can be directly introduced from the side of the fixed bracket 17 away from the exhaust fan 7. Compared with the solution of leading the wire from other sides of the fixed bracket 17, the solution provided by some embodiments is beneficial to reduce the length of the wire harness, avoid the wire harness being too long and easily getting stuck in the exhaust fan 7, and the connection between the wire harness and the second motor 5 is hidden in the mounting cavity 174, which is not only aesthetically pleasing, but also improves the reliability of the connection and avoids the connection being hit by foreign objects and causing poor contact.

[0297] In some embodiments, refer to Figure 5 The wall-mounted air conditioner 10000 may include an insulating sleeve, which is fitted over the wiring harness and connected to the wiring hole. The insulating sleeve provides cushioning protection for the wiring harness at the wiring hole, preventing wear and leakage caused by impacts. Furthermore, the insulating sleeve can seal the wiring hole to some extent, reducing the entry of condensate and moisture into the mounting cavity 174, and minimizing the risk of moisture damage to the electronic connector at the end of the second motor 5.

[0298] In some embodiments, at least one of the fresh air fan 6 and the exhaust fan 7 includes: a disc and blades, the blades being connected to the disc, and the connection between the blades and the disc having a transition rounded corner structure.

[0299] For example, the exhaust fan 7 includes an exhaust wheel 71 and exhaust blades 72. The exhaust blades 72 are connected to the side of the exhaust wheel 71 away from the heat exchange fan 41, and there are multiple exhaust blades 72 arranged circumferentially. A rounded transition corner structure is provided at the connection between the exhaust blades 72 and the exhaust wheel 71. This reduces the concentrated stress at the connection between the exhaust blades 72 and the exhaust wheel 71, improving overall strength. Furthermore, when the airflow flows axially towards the exhaust wheel 71, the airflow can be guided by the rounded transition corner structure under pressure difference, resulting in less turbulence when the airflow changes direction, thus helping to reduce energy consumption.

[0300] For example, the fresh air fan 6 includes a fresh air impeller 61 and fresh air blades 62. The fresh air blades 62 are connected to the fresh air impeller 61 and are multiple in number and arranged circumferentially. A rounded transition corner structure is provided at the connection between the fresh air blades 62 and the fresh air impeller 61. This reduces the concentrated stress at the connection point and improves the overall strength. Furthermore, when the airflow flows axially towards the fresh air impeller 61, the airflow can be guided by the rounded transition corner structure under pressure difference, flowing more smoothly towards the fresh air blades 62, thereby helping to reduce energy consumption.

[0301] In some embodiments, the accommodating cavity V1 within the housing 1, through internal structural cooperation, forms a first chamber V11 and a second chamber V12 within the accommodating cavity V1, such as... Figure 2 As shown in the dashed box. The indoor heat exchanger 2 and heat exchange fan 41 are located in the first chamber V11, and the bidirectional ventilation assembly is at least partially located in the second chamber V12. The heat exchange air inlet 101 and heat exchange air outlet 102 on the casing 1 are configured corresponding to the first chamber V11. The casing 1 may be provided with a casing air outlet 105, which connects to the second chamber V12.

[0302] The rotation of the exhaust fan 7 allows indoor air to enter the first chamber V11 through the heat exchange air inlet 101. The air in the first chamber V11 can further enter the second chamber V12, and then enter the exhaust volute 9 through the exhaust air inlet 901.

[0303] In some embodiments, such as Figure 18 As shown, the base 3 includes a first support frame 301 and a second support frame 302 arranged sequentially along the length of the heat exchange fan 41, with an end plate 31 located between the first support frame 301 and the second support frame 302. A volute duct V03 is formed on the first support frame 301, the indoor heat exchanger 2 and the heat exchange fan 41 are mounted on the first support frame 301, and the fresh air volute 8 and the exhaust volute 9 are mounted on the second support frame 302. For example, a bidirectional air exchange assembly is also mounted on the base 3. The base 3 supports the above structure, ensuring strong overall integrity and helping to avoid excessive vibration caused by loose parts.

[0304] For example, such as Figure 5 and Figure 6 As shown, at least one of the fresh air volute 8 and the exhaust volute 9 has a first hanging ear 806 at its front end and a second hanging ear 807 at its rear end. The first hanging ear 806 and the second hanging ear 807 are respectively hung on the second base 302, and the first hanging ear 806 and the second hanging ear 807 are detachably connected to the second base 302. For example, the fresh air volute 8 and the exhaust volute 9 are placed on the second base 302, and then the first hanging ear 806 and the second hanging ear 807 are hung on the front and rear ends of the second base 302 respectively. Then, the first hanging ear 806 and the second hanging ear 807 are fixed to the second base 302 with mounting bolts. This arrangement not only makes assembly easy, but also ensures that even if the bolts loosen, the fresh air volute 8 and the exhaust volute 9 are supported by the first hanging ear 806 and the second hanging ear 807, preventing them from falling.

[0305] For example, the first lug 806 and the second lug 807 are respectively provided with mounting holes for connecting the second bracket 302, and the axes of the mounting holes on the first lug 806 and the second lug 807 are at an angle. This allows the contact surfaces of the first lug 806 and the second bracket 302, and the contact surfaces of the second lug 807 and the second bracket 302, to have an angle between them, achieving double-sided limiting, preventing loosening, and providing higher positioning accuracy.

[0306] For example, such as Figure 18 As shown, the bottom of the second bracket 302 is provided with a mating port 3021. The lower ends of the fresh air volute 8 and the exhaust volute 9 are located at the mating port 3021. The mating port 3021 can be used to install pipes connecting the fresh air volute 8 and the exhaust volute 9. This not only greatly reduces the weight of the second bracket 302, but also improves the impact and vibration resistance by utilizing the lower part of the fresh air volute 8 and the exhaust volute 9 enclosed by the second bracket 302.

[0307] In some embodiments, combined with 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 the bidirectional ventilation assembly is located at the other lateral end of the heat exchange fan 41. For example, with the bidirectional ventilation assembly and the electrical control box 13 located at opposite lateral ends of the heat exchange fan 41, the operation of the bidirectional ventilation assembly has minimal interference with the electrical control box 13.

[0308] In some embodiments, the wall-mounted air conditioner 10000 may include an electrical control box 13, which and the bidirectional 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 bidirectional ventilation assembly. This arrangement further facilitates control over the length of the wall-mounted air conditioner 10000.

[0309] In some embodiments, refer to Figure 6 , Figures 14-15 As shown, the wall-mounted air conditioner 10000 may further include: a fresh air valve 122, which is installed inside the fresh air volute 8. The fresh air valve 122 is used to open or close the fresh air inlet 801. When the fresh air valve 122 opens the fresh air inlet 801 and the fresh air fan 6 rotates, outdoor air can enter the fresh air volute 8 from the fresh air inlet 801, and outdoor air entering the fresh air volute 8 can enter the room from the fresh air outlet 802. When the fresh air valve 122 closes the fresh air inlet 801, outdoor air cannot enter the fresh air volute 8 from the fresh air inlet 801, and the air inside the fresh air volute 8 cannot be exhausted to the outside from the fresh air inlet 801. By controlling the state of the fresh air valve 122, the opening or closing of the fresh air inlet 801 can be achieved.

[0310] By installing the fresh air valve 122 inside the fresh air volute 8, the external components of the fresh air volute 8 do not need to avoid the fresh air valve 122. The opening and closing of the fresh air inlet 801 by the fresh air valve 122 will not hit the external components of the fresh air volute 8. Furthermore, the fresh air volute 8 has a protective function for the fresh air valve 122, which helps to extend the service life of the fresh air valve 122.

[0311] In some embodiments, refer to Figure 6 , Figure 14As shown, the wall-mounted air conditioner 10000 may further include: an exhaust valve 152, which is installed inside the exhaust volute 9 and is used to open or close the exhaust outlet 902. 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 indoor air entering the exhaust volute 9 can be exhausted to the outside from the exhaust outlet 902. When the exhaust valve 152 closes the exhaust outlet 902, indoor air in the exhaust volute 9 cannot be exhausted to the outside from the exhaust outlet 902, and outdoor air cannot enter the room through the exhaust outlet 902. By controlling the state of the exhaust valve 152, the opening or closing of the exhaust outlet 902 can be achieved.

[0312] By installing the exhaust valve 152 inside the exhaust volute 9, the external components of the exhaust volute 9 do not need to avoid the exhaust valve 152. The opening and closing of the exhaust inlet 901 by the exhaust valve 152 will not hit the external components of the exhaust volute 9. Furthermore, the exhaust volute 9 protects the exhaust valve 152, which helps to extend the service life of the exhaust valve 152.

[0313] When the wall-mounted air conditioner 10000 is turned off, it does not work. The fresh air valve 122 closes the fresh air inlet 801, 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 from exchanging with outdoor air through the bidirectional ventilation assembly.

[0314] In related technologies, people's requirements for fresh air are constantly increasing, and the demand for fresh air volume is growing. Traditional air intake and exhaust modules, while introducing outdoor fresh air into the room, also exhaust indoor air to the outside, causing large fluctuations in indoor temperature and affecting user experience. In the wall-mounted air conditioner 10000 of this application, when the bidirectional ventilation component is in fresh air mode, the fresh air valve 122 opens the fresh air inlet 801, 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. The exhaust fan 7 only idles within the exhaust volute 9. Since the exhaust duct V02 is closed at the exhaust outlet 902, the air within the exhaust duct V02 does not flow, reducing the operating noise of the bidirectional ventilation component. Simultaneously, indoor air cannot be exhausted to the outside through the exhaust outlet 902, resulting in smaller indoor temperature fluctuations and a better user experience.

[0315] In related technologies, people's requirements for fresh air are constantly increasing, and the demand for fresh air volume is getting bigger and bigger. In low or high temperature weather, such as winter and summer, after outdoor fresh air is introduced into the room, the temperature difference between indoor and outdoor air is large, which will cause large fluctuations in indoor temperature and affect the user experience. When the bidirectional ventilation component of the wall-mounted air conditioner 10000 of this application is in exhaust mode, the fresh air valve 122 closes the fresh air inlet 801, 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 simultaneously, the indoor air enters the exhaust duct V02 through the exhaust inlet 901 and is then blown to the outside through the exhaust outlet 902. The fresh air fan 6 only rotates idly in the fresh air volute 8. Since the fresh air duct V01 is closed at the fresh air inlet 801, the air in the fresh air duct V01 does not flow, which reduces the operating noise of the bidirectional ventilation component. At the same time, the air in this room is exhausted to the outside, and the air in the room is replenished 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 changes are small, resulting in a better user experience.

[0316] When the bidirectional ventilation component of the wall-mounted air conditioner 10000 is in exhaust-fresh air mode, the fresh air valve 122 opens the fresh air inlet 801, and the exhaust valve 152 opens the exhaust outlet 902. The exhaust-fresh air mode can be activated when the temperature difference between indoor and outdoor air is small to meet the needs of users in various scenarios. 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. Indoor air enters the exhaust duct V02 through the exhaust air inlet 901 and is then blown out through the exhaust outlet 902.

[0317] In some embodiments, the bidirectional ventilation assembly has a fresh air inlet 801 and an exhaust outlet 902, a fresh air valve 122 for opening or closing the fresh air inlet 801, an exhaust valve 152 for opening or closing the exhaust outlet 902, and a wall-mounted air conditioner 10000 having a fresh air mode, an exhaust mode, and an exhaust-fresh air mode.

[0318] In fresh air mode, fresh air valve 122 opens the fresh air inlet 801 and exhaust valve 152 closes the exhaust outlet 902.

[0319] In exhaust mode, the fresh air valve 122 closes the fresh air inlet 801 and the exhaust valve 152 opens the exhaust outlet 902.

[0320] In exhaust-fresh air mode, the fresh air valve 122 opens the fresh air inlet 801 and the exhaust valve 152 opens the exhaust outlet 902.

[0321] According to the embodiments of this application, the wall-mounted air conditioner 10000 can control the opening and closing of the fresh air inlet 801 by setting the fresh air valve 122, and can control the opening and closing of the exhaust outlet 902 by setting the exhaust valve 152, thereby making the fresh air and exhaust process of the wall-mounted air conditioner 10000 controllable.

[0322] In some embodiments, refer to Figure 6 , Figures 14-15 As shown, the wall-mounted air conditioner 10000 also includes a fresh air valve motor 121 and an exhaust valve motor 151. The fresh air valve motor 121 is used to drive the fresh air valve 122 to translate, and the exhaust valve motor 151 is used to drive the exhaust valve 152 to translate. The axial direction of the fresh air valve motor 121 is parallel to the axial direction of the exhaust valve motor 151.

[0323] In some embodiments, refer to 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 installed outside the fresh air volute 8, so that the fresh air motor body 1211 does not occupy the internal space of the fresh air volute 8, and therefore does not occupy the space of the fresh air duct V01, thus not affecting the airflow in the fresh air duct V01. The fresh air motor shaft 1212 is rotatably mounted on the fresh air motor body 1211, and the fresh air motor shaft 1212 extends at least partially into the interior of the fresh air volute 8, and is used to drive the fresh air valve 122 to open or close the fresh air inlet 801. Specifically, the fresh air motor shaft 1212 is rotatable relative to the fresh air motor body 1211, and when the fresh air motor shaft 1212 rotates, it can drive the fresh air valve 122 to open or close the fresh air inlet 801.

[0324] In some embodiments, the fresh air valve 122 is a baffle, and the fresh air valve motor 121 drives the fresh air valve 122 to move. The direction of movement of the fresh air valve 122 is perpendicular to the axis of the second motor 5, and the axis of the fresh air valve motor 121 is parallel to the axis of the second motor 5. (Refer to...) Figures 1-4 , Figure 6 , Figure 15 As shown, the direction of movement of the fresh air valve 122 is the front-back direction of the main body 1000, thereby making full use of the space of the bidirectional ventilation assembly in the front-back direction of the main body 1000; the axis of the fresh air valve motor 121 and the axis of the second motor 5 are both in the left-right direction of the main body 1000, thereby facilitating the fresh air motor shaft 1212 to drive the fresh air valve 122 to move in the front-back direction.

[0325] In some embodiments, refer to Figures 1-4 , Figure 6 , Figure 15As shown, the air intake direction of the fresh air inlet 801 is perpendicular to the axis of the fresh air valve motor 121, and the moving direction of the fresh air valve 122 is perpendicular to the air intake direction of the fresh air inlet 801. Specifically, the air intake direction of the fresh air inlet 801 is from bottom to top, and the moving direction of the fresh air valve 122 is the front-to-back direction of the main body 1000. In this way, the fresh air valve 122 can open or close the fresh air inlet 801 within the shortest moving distance, which is beneficial to energy saving.

[0326] In some embodiments, refer to 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 by 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 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. The fresh air valve 122 is mounted on a fresh air rack 1232, which is fixed to the side of the fresh air valve 122 facing the fresh air gear 1231. This facilitates direct meshing between the fresh air gear 1231 and the fresh air rack 1232. The length direction of the fresh air rack 1232 is perpendicular to the axis of the second motor 5. The meshing of the fresh air gear 1231 and the fresh air rack 1232 allows the fresh air valve motor 121 to drive the fresh air valve 122 to translate along the length direction of the fresh air rack 1232 when the fresh air gear 1231 rotates.

[0327] 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 will drive 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 will drive the fresh air valve 122 to move synchronously.

[0328] Optionally, the fresh air rack 1232 and the fresh air valve 122 can be connected by bolt assembly, welding, bonding or other methods; or alternatively, the fresh air rack 1232 can 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.

[0329] The fresh air transmission mechanism 123, in the form of fresh air gear 1231 and fresh air rack 1232, has a simple structure and reliable power transmission. Moreover, the fresh air gear 1231 is directly mounted on the fresh air motor shaft 1212, eliminating the need for an intermediate transmission shaft, which helps to simplify the fresh air transmission mechanism 123 and reduce the number of parts, space occupation, and cost of the fresh air transmission mechanism 123.

[0330] In some embodiments, the fresh air inlet 801 is located on the second volute 82, and the fresh air motor body 1211 is mounted on the second volute 82. The fresh air motor shaft 1212 extends at least partially into the second volute 82. The fresh air motor body 1211 is located outside the second volute 82, does not occupy the space inside the second volute 82, and does not affect the airflow inside the second volute 82. The portion of the fresh air motor shaft 1212 extending into the second volute 82 is used to drive the fresh air valve 122 to open or close the fresh air inlet 801.

[0331] In some embodiments, the fresh air motor body 1211 is mounted on the fan cover 822. Specifically, the fresh air motor body 1211 is mounted on the outside of the fan cover 822, does not occupy the space inside the fan cover 822, and does not affect the airflow inside the fan cover 822. The fresh air motor shaft 1212 extends into the inside of the fan cover 822.

[0332] In some embodiments, the fresh air gear 1231 is mounted on the fresh air motor shaft 1212, and a support hole can be provided on the second volute half 821. 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 more stable.

[0333] In some embodiments, refer to Figure 6 , Figure 15 As 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 the cover plate flange 82222 protrudes downward relative to the cover plate body 82221. The cover plate flange 82222 extends downward relative to the cover plate body 82221 towards the lower part of the main body 1000. The cover plate flange 82222 and the second volute half 821 enclose a fresh air inlet 801. By setting the cover plate flange 82222, it is convenient to connect the fresh air inlet pipe, which can be separated from the cover plate body 82221. Optionally, the fresh air inlet pipe and the cover plate flange 82222 can be connected by clamps, threads, or other means.

[0334] The fresh air valve 122 is located on the side of the cover plate body 82221 opposite to the cover plate flange 82222. The side of the cover plate body 82221 opposite to 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 external components of the fresh air volute 8 do not need to avoid the fresh air valve 122. The opening and closing of the fresh air inlet 801 by the fresh air valve 122 will not hit the external components of the fresh air volute 8, and the fresh air volute 8 has a protective function for the fresh air valve 122, which helps to extend the service life of the fresh air valve 122.

[0335] Both the fresh air valve 122 and the cover plate body 82221 are constructed as flat plates, 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, so as not to cause too much interference to the airflow inside the fresh air volute 8.

[0336] In some embodiments, the fresh air valve 122 opens the fresh air inlet 801 at multiple locations to adjust the air volume at the fresh air inlet 801.

[0337] In some embodiments, refer to Figure 6 , Figure 14 As shown, the wall-mounted air conditioner 10000 also includes an exhaust valve motor 151. The exhaust valve motor 151 includes an exhaust motor body 1511 and an exhaust motor shaft 1512. The exhaust motor body 1511 is installed outside the exhaust volute 9, so that the exhaust motor body 1511 does not occupy the internal space of the exhaust volute 9, and therefore does not occupy the space of the exhaust duct V02, thus not affecting the air volume in the exhaust duct V02. The exhaust motor shaft 1512 is rotatably mounted on the exhaust motor body 1511, and the exhaust motor shaft 1512 is used to drive the exhaust valve 152 to open or close the exhaust outlet 902.

[0338] In some embodiments, the exhaust valve 152 is a baffle, and the exhaust valve motor 151 drives the exhaust valve 152 to move. The direction of movement of the exhaust valve 152 is perpendicular to the axis of the second motor 5, and the axis of the exhaust valve motor 151 is parallel to the axis of the second motor 5. (Refer to...) Figure 3 and Figure 14 As shown, the exhaust valve 152 moves in the front-back direction of the main body 1000, thereby making full use of the space of the bidirectional ventilation assembly in the front-back direction of the main body 1000; the axial direction of the exhaust valve motor 151 and the axial direction of the second motor 5 are both in the left-right direction of the main body 1000, thereby facilitating the exhaust motor shaft 1512 to drive the exhaust valve 152 to move in the front-back direction.

[0339] In some embodiments, refer to Figures 1-4 , Figure 6 , Figure 14 As shown, the air outlet direction of exhaust vent 902 is perpendicular to the axis of exhaust valve motor 151, and the moving direction of exhaust valve 152 is perpendicular to the air outlet direction of exhaust vent 902. Specifically, the air outlet direction of exhaust vent 902 is from top to bottom, and the moving direction of exhaust valve 152 is the front-to-back direction of main body 1000. In this way, exhaust valve 152 can open or close exhaust vent 902 within the shortest moving distance, which is beneficial for energy saving.

[0340] In some embodiments, refer to Figure 14As shown, the wall-mounted air conditioner 10000 also includes an exhaust transmission mechanism 153. The exhaust valve motor 151 and the exhaust valve 152 are connected by the exhaust transmission mechanism 153. The exhaust transmission mechanism 153 includes an exhaust gear 1531 and an exhaust rack 1532. The exhaust gear 1531 and the exhaust rack 1532 mesh so that the exhaust valve motor 151 drives the exhaust valve 152 to translate in the length direction of the exhaust rack 1532 when the exhaust gear 1531 rotates.

[0341] The exhaust gear 1531 is located inside the exhaust volute 9. The exhaust gear 1531 is coaxially arranged with the exhaust motor shaft 1512. The exhaust motor shaft 1512 drives the exhaust gear 1531 to rotate. The exhaust rack 1532 is fixed on the exhaust valve 152, and the exhaust rack 1532 is fixed on the side of the exhaust valve 152 facing the exhaust gear 1531, so that the exhaust gear 1531 and the exhaust rack 1532 can directly mesh. The length direction of the exhaust rack 1532 is perpendicular to the axis of the second motor 5.

[0342] Specifically, the length direction of the exhaust rack 1532 is the front-to-back direction of the main body 1000, and the movement direction of the exhaust valve 152 is the same as the length direction of the exhaust rack 1532. When the exhaust gear 1531 rotates, it will drive the exhaust rack 1532 to move along the length direction of the exhaust rack 1532, and when the exhaust rack 1532 moves, it will drive the exhaust valve 152 to move synchronously.

[0343] Optionally, the exhaust rack 1532 and the exhaust valve 152 can be connected by bolt assembly, welding, bonding or other methods; or alternatively, the exhaust rack 1532 can be integrally formed with the exhaust valve 152, which can reduce the assembly steps between the exhaust rack 1532 and the exhaust valve 152 and reduce the number of parts.

[0344] The exhaust transmission mechanism 153, in the form of exhaust gear 1531 and exhaust rack 1532, has a simple structure and reliable power transmission. Furthermore, the exhaust gear 1531 is directly mounted on the exhaust motor shaft 1512, eliminating the need for an intermediate transmission shaft. This simplifies the exhaust transmission mechanism 153, reducing the number of parts, space occupied, and cost.

[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, refer to Figure 6 , Figure 14As shown, the exhaust volute 9 includes a main volute 92 and a secondary volute 93. The secondary volute 93 is detachably connected to the first volute 81, and the main volute 92 is detachably connected to both the first volute 81 and the secondary volute 93. The exhaust valve motor 151 is mounted on the secondary volute 93, and the exhaust valve 152 is movably disposed within the space enclosed by the main volute 92 and the secondary volute 93. This allows for easy adjustment of the relative position between the exhaust gear 1531 and the exhaust rack 1532. When the exhaust valve motor 151 drives the exhaust valve 152, the power of the exhaust valve motor 151 can be better transmitted to the exhaust valve 152, preventing the exhaust gear 1531 and the exhaust rack 1532 from jamming. This results in higher reliability of the exhaust valve 152's opening and closing of the exhaust outlet 902. Processing the exhaust volute 9 into at least the main volute 92 and the secondary volute 93 separately reduces manufacturing and assembly difficulties. Furthermore, the separate manufacturing of such a complex housing facilitates quality control. The main volute 92 is detachably connected to the first volute 81, the secondary volute 93 is detachably connected to the first volute 81, and the main volute 92 is detachably connected to the secondary volute 93, which facilitates assembly and subsequent adjustment and maintenance.

[0347] In some embodiments, refer to Figure 6 , Figure 15 As shown, a purified air inlet 804 for connecting to the room is formed on the main body 82221 of the enclosure. When the fresh air valve 122 opens the purified air inlet 804 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. In other words, both the fresh air inlet 801 and the purified air inlet 804 are located on the main body 82221 of the enclosure, facilitating the fresh air valve 122 to block one of them and open the other. By moving the fresh air valve 122, it is possible to block the purified air inlet 804 and open the fresh air inlet 801, or vice versa.

[0348] In some embodiments, the purified air inlet 804 and the fresh air inlet 801 are arranged spaced apart along the moving direction of the fresh air valve 122, and the air intake directions of the purified air inlet 804 and the fresh air inlet 801 are consistent. This facilitates the opening of one of the purified air inlets 804 and the fresh air inlet 801 and the closing of the other when the fresh air valve 122 is moved horizontally. 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 one of the purified air inlets 804 and the fresh air inlet 801 and open the other. Thus, the open and closed states of the purified air inlet 804 and the fresh air inlet 801 can be switched using a single fresh air valve 122, so that when one of the purified air inlets 804 and the fresh air inlet 801 is open, the other is closed. This eliminates the need for two valves, saving on the number of valves and corresponding motors, and reducing costs.

[0349] The front-to-back direction of the main body 1000 is perpendicular to the axis of the second motor 5. In the front-to-back direction of the main body 1000, the purification air inlet 804 and the fresh air inlet 801 are arranged at intervals, for example... Figure 6 , Figure 15 As shown, the purification air inlet 804 can be located in front of the fresh air inlet 801, that is, the purification air inlet 804 is located on the side of the fresh air inlet 801 away from the wall. In other embodiments, the purification air inlet 804 can also be located behind the fresh air inlet 801, that is, the purification air inlet 804 is located on the side of the fresh air inlet 801 closer to the wall.

[0350] In some embodiments, refer to Figure 8 The wall-mounted air conditioner 10000 also includes a purification component 11, which is installed inside the fresh air chamber V012 and connected to the second volute 82. When the fresh air valve 122 opens the fresh air inlet 801 and the fresh air fan 6 rotates, outdoor air enters the fresh air volute 8 through the fresh air inlet 801, and the outdoor air entering the fresh air volute 8 is blown through the purification component 11 before entering the room through the fresh air outlet 802. When the fresh air valve 122 opens the purification inlet 804 and the fresh air fan 6 rotates, indoor air enters the fresh air volute 8 through the purification inlet 804 and is purified by the purification component 11, and the indoor air entering the fresh air volute 8 is allowed to enter the room through the fresh air outlet 802. The fresh air valve 122 can selectively open either the fresh air inlet 801 or the purification inlet 804, thereby switching between fresh air mode and purification mode to meet different user needs.

[0351] In some embodiments, both the fresh air inlet 801 and the purified air inlet 804 are located at the bottom of the fresh air volute 8, so that airflow enters the interior of the fresh air volute 8 from bottom to top through either the fresh air inlet 801 or the purified air inlet 804. Furthermore, since both the fresh air inlet 801 and the purified air inlet 804 are located at the bottom of the fresh air volute 8, a single fresh air valve 122 can be used to achieve phased opening of either the fresh air inlet 801 or the purified air inlet 804, reducing the number of valves and saving costs.

[0352] In some embodiments, refer to Figure 6 , Figure 15 As shown, the fresh air valve 122 opens or closes the fresh air inlet 801 by translation, and the exhaust valve 152 opens or closes the exhaust outlet 902 by translation. Specifically, the fresh air volute 8 is provided with a fresh air inlet 801 and a purified air inlet 804, both of which are located at the bottom of the fresh air volute 8, and both openings of the fresh air inlet 801 and the purified air inlet 804 face downwards.

[0353] By configuring the fresh air valve 122 to open or close the fresh air inlet 801 via a sliding motion, the valve can simultaneously open and close the purified air inlet 804. Specifically, the fresh air valve 122 opens the fresh air inlet 801 while closing the purified air inlet 804, and closes the purified air inlet 804 while closing the fresh air inlet 801. This allows the same fresh air valve 122 to be used for both the fresh air inlet 801 and the purified air inlet 804, eliminating the need for separate valves at each location. This saves on the number of valves required, and the switching operation of the fresh air valve 122 between the fresh air inlet 801 and the purified air inlet 804 is simple and convenient.

[0354] In some embodiments, the bidirectional ventilation assembly has a fresh air inlet 801, a purified air inlet 804, and an exhaust air outlet 902. A fresh air valve 122 is used to open one of the fresh air inlet 801 and the purified air inlet 804 and close the other of the fresh air inlet 801 and the purified air inlet 804. An exhaust air valve 152 is used to open or close the exhaust air outlet 902.

[0355] In some embodiments, the wall-mounted air conditioner 10000 further includes a fresh air valve motor 121 and an exhaust valve motor 151. The fresh air valve motor 121 is used to drive the fresh air valve 122 to translate, and the exhaust valve motor 151 is used to drive the exhaust valve 152 to rotate. The axial direction of the fresh air valve motor 121 is perpendicular to the axial direction of the exhaust valve motor 151.

[0356] In some embodiments, the axial direction of the fresh air valve motor 121 is parallel to the axial direction of the second motor 5, such that 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.

[0357] In some embodiments, the axial direction of the exhaust valve motor 151 is perpendicular to the axial direction of the second motor 5. In this way, the exhaust valve 152 can rotate around the axis of the exhaust valve motor 151, thereby opening or closing the exhaust outlet 902.

[0358] In some embodiments, the exhaust valve 152 opens or closes the exhaust outlet 902 by rotation. Setting the exhaust valve 152 to open or close the exhaust outlet 902 by rotation 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 very large, and the rotation action of the exhaust valve 152 is simple and easy to implement.

[0359] In some embodiments, the wall-mounted air conditioner 10000 includes an exhaust valve motor 151. The exhaust valve motor 151 includes an exhaust motor body 1511 and an exhaust motor shaft 1512. The exhaust motor body 1511 is installed outside the exhaust volute 9. The exhaust motor shaft 1512 is rotatably disposed on the exhaust motor body 1511. The exhaust motor shaft 1512 is used to drive the exhaust valve 152 to open or close the exhaust outlet 902.

[0360] 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 extends at least partially 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.

[0361] Specifically, refer to Figure 21 As 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 alternatively, the exhaust valve 152 and the exhaust motor shaft 1512 are fixedly connected by assembly.

[0362] In some embodiments, when the exhaust valve 152 rotates outward, that is, in the direction of air outlet 902, the exhaust valve 152 opens the exhaust outlet 902. In this way, when air is exhausted 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.

[0363] The 10000 wall-mounted air conditioner features a fresh air mode, an exhaust-fresh air mode, an exhaust-purification mode, and a purification mode.

[0364] In fresh air mode, fresh air valve 122 opens fresh air inlet 801 and closes purification air inlet 804, while exhaust valve 152 closes exhaust outlet 902.

[0365] In exhaust-fresh air mode, the fresh air valve 122 opens the fresh air inlet 801 and closes the purified air inlet 804, while the exhaust valve 152 opens the exhaust outlet 902.

[0366] In exhaust-purification mode, fresh air valve 122 opens the purification air inlet 804 and closes the fresh air inlet 801, while exhaust valve 152 opens the exhaust air outlet 902.

[0367] In purification mode, the fresh air valve 122 opens the purification air inlet 804 and closes the fresh air inlet 801, while the exhaust valve 152 closes the exhaust air outlet 902.

[0368] It should be noted that any one of the technical solutions disclosed in this invention can solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose 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 a certain disclosure purpose; some technical disclosures can also be selected and combined into an overall solution, while adopting related technologies and deteriorating solutions, but the deterioration trend can be compensated by the means of this technical disclosure, and the overall solution can solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose to a certain extent; each technical disclosure combined into a complete technical solution constitutes an organic and indivisible overall solution, which solves the technical problems and achieves a certain disclosure purpose as a whole.

[0369] Any technical disclosure in this invention, as well as the recombination of multiple technical disclosures, can form a complete technical solution and solve one or more of the aforementioned technical problems, thus achieving the purpose of disclosure. All of these fall under the scope of this invention and are directly and unambiguously determined by the content of this invention.

[0370] Those skilled in the art will understand that the scope of this invention is not limited to the embodiments described above, and that modifications and substitutions can be made to certain elements of the embodiments without departing from the spirit of the invention. The scope of this invention is limited by the appended claims.

Claims

1. A wall-mounted air conditioner (10000) comprising: a main body (1000) comprising: a casing (1) having an accommodation cavity (V1) formed inside, and a heat exchange air inlet (101) and a heat exchange air outlet (102) formed on the casing (1); a base (3) provided in the accommodation cavity (V1) and having a volute air duct (V03) formed thereon; a heat exchange fan (41) provided in the volute air duct (V03); a first motor (42) provided in the accommodation cavity (V1) and located at one end of the heat exchange fan (41) in the length direction, for driving the heat exchange fan (41) to rotate, so that air inside the air conditioner exchanges heat with the indoor space; characterized in that it further comprises: a second motor (5) provided in the accommodation cavity (V1) and located at the other end of the heat exchange fan (41) in the length direction, the second motor (5) being an outer rotor motor, the second motor (5) comprising: a stator portion (51) having a coil wound thereon; a rotor portion (52) provided around the outside of the stator portion (51) in the radial direction of the stator portion (51); a motor housing (53) fixedly connected with the rotor portion (52); an output shaft (532) fixedly connected with the motor housing (53); a fresh air fan (6) being an axial air inlet and radial air outlet centrifugal fan, the fresh air fan (6) being fixedly connected with the output shaft (532) of the second motor (5); wherein the second motor (5) is located between the fresh air fan (6) and the heat exchange fan (41); an exhaust fan (7) being an axial air inlet and radial air outlet centrifugal fan, the exhaust fan (7) being sleeved on the radial outside of the motor housing (53), and the exhaust fan (7) being fixedly connected with the motor housing (53); wherein the exhaust fan (7) is located between the fresh air fan (6) and the heat exchange fan (41), and the second motor (5) drives the fresh air fan (6) and the exhaust fan (7) to rotate synchronously in the working state; a fresh air volute (8) having a fresh air duct (V01) formed therein, the fresh air fan (6) being installed in the fresh air volute (8), and the fresh air volute (8) having a fresh air inlet (801) and a fresh air outlet (802) formed thereon; the fresh air fan (6) rotating to allow outdoor air to enter the fresh air volute (8) from the fresh air inlet (801), and to allow the outdoor air in the fresh air volute (8) to enter the indoor space from the fresh air outlet (802). An exhaust air volute (9) is located on the side of the fresh air volute (8) facing the second motor (5), an exhaust air duct (V02) is formed in the exhaust air volute (9), the exhaust air fan (7) is installed in the exhaust air volute (9), and an exhaust air inlet (901) and an exhaust air outlet (902) are formed on the exhaust air volute (9); The rotation of the exhaust air fan (7) can make indoor air enter the exhaust air volute (9) from the exhaust air inlet (901) and make the indoor air entering the exhaust air volute (9) be exhausted to the outdoor from the exhaust air outlet (902).

2. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The stator part (51) comprises: A stator body (511); A base body (512) is wrapped outside the stator body (511), and the base body (512) is made of plastic. 3.The wall-mounted air conditioner (10000) according to claim 1, characterized in that, Further comprising: An indoor heat exchanger (2) is arranged in the accommodating cavity (V1); An end plate (31) is located at one end of the indoor heat exchanger (2) close to the exhaust air fan (7), and the end plate (31) is connected with the indoor heat exchanger (2), and the end plate (31) is used for mounting the indoor heat exchanger (2) on the base (3). A gap is arranged between the end plate (31) and the exhaust air volute (9), and the gap is used for forming a channel for the indoor air from the heat exchange inlet (101) to the exhaust air inlet (901). 4.The wall-mounted air conditioner (10000) according to claim 3, characterized in that, The end plate (31) comprises An end plate body (311); An end plate protruding part (312) protrudes towards the exhaust air volute (9) relative to the end plate body (311); In the length direction of the heat exchange fan (41), the distance between the end plate body (311) and the exhaust air volute (9) is T, T≥10mm, and T≤30mm. 5.The wall-mounted air conditioner (10000) according to claim 1, wherein, In the height direction of the main body (1000), the fresh air inlet (801) and the exhaust air outlet (902) are located below the main body (1000). 6.The wall-mounted air conditioner (10000) according to claim 1, wherein The exhaust air fan (7) forms a containing groove (V07) in the radial center, and at least a part of the stator part (51), at least a part of the rotor part (52), and at least a part of the motor shell (53) of the second motor (5) are accommodated in the containing groove (V07). 7.The wall-mounted air conditioner (10000) according to claim 1, wherein The fresh air outlet (802) is located in front of the main body (1000). 8.The wall-mounted air conditioner (10000) according to claim 1, wherein, The fresh air outlet (802) is located at the top of the main body (1000). 9.The wall-mounted air conditioner (10000) according to claim 1, wherein, The fresh air outlet (802) is located below the main body (1000) to guide the fresh air to flow forward and downward to the indoor. 10.The wall-mounted air conditioner (10000) according to claim 1, wherein, The exhaust air inlet (901) is formed on the exhaust air volute (9), and the axial direction of the exhaust air inlet (901) is arranged along the length direction of the main body (1000). 11.The wall-mounted air conditioner (10000) according to claim 1, wherein The heat exchange air inlet (101) and the exhaust air air inlet (901) form a first communication air duct (V04), the exhaust fan (7) rotates to drive indoor air to enter the first communication air duct (V04) from the heat exchange air inlet (101), and the indoor air enters the exhaust air volute (9) through the exhaust air air inlet (901). 12.The wall-mounted air conditioner (10000) according to claim 1, wherein, Further comprising: A fixed support (17) is arranged at the exhaust air air inlet (901) and used for fixing the second motor (5); A connecting arm (175) connects the fixed support (17) and the exhaust air volute (9).

13. The wall-mounted air conditioner (10000) according to any one of claims 1-12, characterized in that, The fresh air fan (6) comprises: A fresh air disc (61); and A fresh air blade (62) located at an outer edge of the fresh air disc (61) and extending along an axial direction of the fresh air disc (61), wherein a total thickness of the fresh air disc (61) and the fresh air blade (62) in the axial direction is h1; and The exhaust fan (7) comprises: An exhaust air disc (71); and 14.The wall-mounted air conditioner (10000) according to any one of claims 1-12, wherein, An exhaust air blade (72) located at an outer edge of the exhaust air disc (71) and extending along an axial direction of the exhaust air disc (71), wherein a total thickness of the exhaust air disc (71) and the exhaust air blade (72) in the axial direction is h2; and h2 < h1. A total thickness of the stator portion (51), the rotor portion (52), and the motor shell (53) in the axial direction is h3. The exhaust fan (7) comprises An exhaust air disc (71); and An exhaust air blade (72) located at an outer edge of the exhaust air disc (71) and extending along an axial direction of the exhaust air disc (71), wherein a total thickness of the exhaust air disc (71) and the exhaust air blade (72) in the axial direction is h2; 15.The wall-mounted air conditioner (10000) according to claim 1, wherein, h3 > h2. The exhaust fan (7) comprises An exhaust air disc (71); and An exhaust air blade (72) located at an outer edge of the exhaust air disc (71) and extending along an axial direction of the exhaust air disc (71) in a direction away from the fresh air fan (6); The exhaust fan (7) comprises a protruding portion (74) arranged on the exhaust air disc (71), wherein the protruding portion (74) extends in a direction towards the fresh air fan (6) relative to the exhaust air disc (71) so that the protruding portion (74) forms a containing groove (V07) of the second motor (5) on a side close to the second motor (5); At least a portion of the stator portion (51) and at least a portion of the rotor portion (52) are accommodated in the containing groove (V07). 16.The wall-mounted air conditioner (10000) according to claim 15, characterized in that, The fresh air volute (8) comprises: A first volute (81) is located at a side of the exhaust air volute (9) away from the heat exchange fan (41), and the first volute (81) is detachably connected with the exhaust air volute (9); A second volute (82) is located at a side of the first volute (81) away from the heat exchange fan (41), and the second volute (82) is detachably connected with the first volute (81), and the first volute (81) is located between the exhaust air volute (9) and the second volute (82). 17.The wall-mounted air conditioner (10000) according to claim 16, characterized in that, The first volute (81) comprises A first volute end plate (811) has a central part area forming a recess (813) recessed towards the fresh air fan (6), and at least a part of the protruding part (74) is located in the recess (813); And A first volute surrounding plate (812) extends along the edge of the first volute end plate (811) to form. 18.The wall-mounted air conditioner (10000) according to claim 17, characterized in that, The center of the recess (813) is provided with a perforated part (814), and the output shaft (532) is connected with the fresh air fan (6) through the perforated part (814). 19.The wall-mounted air conditioner (10000) according to claim 17, characterized in that, The fresh air fan (6) comprises: A fresh air disc (61); and Fresh air blades (62) located at the outer edge of the fresh air disc (61) and extending along the axial direction of the fresh air disc (61); Wherein, the fresh air fan (6) comprises a fresh air recess (63) provided on the fresh air disc (61), the fresh air recess (63) extends away from the exhaust air fan (7) relative to the fresh air disc (61), and at least a part of the recess (813) is located in the fresh air recess (63). 20.The wall-mounted air conditioner (10000) according to claim 1, wherein, The total thickness of the stator part (51), the rotor part (52) and the motor shell (53) in the axial direction is h3; The fresh air fan (6) comprises: A fresh air disc (61); and Fresh air blades (62) located at the outer edge of the fresh air disc (61) and extending along the axial direction of the fresh air disc (61), and the total thickness of the fresh air disc (61) and the fresh air blades (62) in the axial direction is h1, h1>h3.

21. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The area of the outer circular surface of the fresh air fan (6) is S1, and the area of the outer circular surface of the exhaust air fan (7) is S2, S1=πD1×h1, D1 is the outer diameter of the fresh air fan (6), and h1 is the total thickness of the fresh air disc (61) and the fresh air blades (62) of the fresh air fan (6) in the axial direction; S2=πD2×h2, D2 is the outer diameter of the exhaust air fan (7), and h2 is the total thickness of the exhaust air disc (71) and the exhaust air blades (72) of the exhaust air fan (7) in the axial direction; S1>S2 is satisfied.

22. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The exhaust air fan (7) comprises: An exhaust wheel disc (71) coaxially arranged with the second motor (5), and connected with the motor shell (53) of the second motor (5); A plurality of exhaust blades (72) arranged on the exhaust wheel disc (71), and extending only in a direction away from the fresh air fan (6), and arranged circumferentially on the exhaust wheel disc (71). 23.The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The fresh air fan (6) comprises: A fresh air wheel disc (61) coaxially arranged with the second motor (5), and connected with the output shaft (532) of the second motor (5); A fresh air blade (62) comprising a first fresh air blade (621) extending from the fresh air wheel disc (61) in a direction away from the exhaust fan (7). 24.The wall-mounted air conditioner (10000) according to claim 23, characterized in that, The fresh air blade (62) further comprises A second fresh air blade (622) extending from the fresh air wheel disc (61) in a direction close to the exhaust fan (7). 25.The wall-mounted air conditioner (10000) according to claim 24, characterized in that, In the axial direction of the fresh air fan (6), the length of the second fresh air blade (622) is less than the length of the first fresh air blade (621). 26.The wall-mounted air conditioner (10000) according to claim 24, wherein, The fresh air wheel disc (61) is formed with a wheel disc hole (612) having a distance to the center of the fresh air wheel disc (61) less than the distance of the fresh air blade (62) to the center of the fresh air wheel disc (61). 27.The wall-mounted air conditioner (10000) according to claim 1, wherein, The air inlet direction of the fresh air inlet (801) is upward. 28.The wall-mounted air conditioner (10000) according to claim 16, wherein, The second volute (82) comprises: A second volute half (821) located on the side of the first volute (81) away from the exhaust fan (7), and detachably connected with the first volute (81), and provided with an axial air vent (8211) in the radial center, and forming a volute cavity (V011) with the first volute (81), and the fresh air fan (6) is located in the volute cavity (V011), and the second volute half (821) and the first volute (81) enclose the fresh air outlet (802). 29.The wall-mounted air conditioner (10000) according to claim 28, characterized in that, The second volute (82) further comprises: A fan cover (822) located on the side of the second volute half (821) away from the exhaust fan (7), and detachably connected with the second volute half (821), and enclosing a fresh air cavity (V012) with the second volute half (821), and enclosing the fresh air inlet (801) with the second volute half (821). 30.The wall-mounted air conditioner (10000) according to claim 29, characterized in that, Comprise: A purifying member (11) is installed in the fresh air cavity (V012), and the purifying member (11) is connected with the second volute (82). When the fresh air fan (6) rotates, outdoor air can enter the fresh air volute (8) from the fresh air inlet (801), and the outdoor air entering the fresh air volute (8) can blow through the purifying member (11) and then enter the indoor air from the fresh air outlet (802). 31.The wall-mounted air conditioner (10000) according to claim 30, wherein, The purifying member (11) comprises a filter screen (111), and the filter screen (111) covers the axial air vent (8211).

32. The wall-mounted air conditioner (10000) according to claim 31, characterized in that, The filter screen (111) is a square screen, and the side length of the filter screen (111) is greater than the diameter of the axial air vent (8211). 33.The wall-mounted air conditioner (10000) according to claim 30, wherein, A part of the fresh air cavity (V012) forms an empty cavity (V0121), the empty cavity (V0121) is located on the side of the purifying member (11) away from the fresh air fan (6), and the fresh air inlet (801) is communicated with the empty cavity (V0121). 34.The wall-mounted air conditioner (10000) according to claim 30, wherein, The fan cover (822) and the second volute half (821) further surround a mounting port (803), and the purifying member (11) is detachably assembled in the fresh air cavity (V012) through the mounting port (803).

35. The wall-mounted air conditioner (10000) according to claim 30, characterized in that, The fresh air volute (8) is formed with a purifying air inlet (804) for communicating with the indoor air, and when the fresh air fan (6) rotates, indoor air can enter the fresh air volute (8) from the purifying air inlet (804) to pass through the purifying member (11) for purification, and the indoor air entering the fresh air volute (8) can enter the indoor air from the fresh air outlet (802). 36.The wall-mounted air conditioner (10000) according to claim 35, wherein, The purifying air inlet (804) is located at the bottom of the fresh air volute (8) and is arranged in a downward direction. 37.The wall-mounted air conditioner (10000) according to claim 1, wherein, The exhaust air volute (9) comprises An air guide ring (91), and the air guide ring (91) decreases in diameter in a direction close to the fresh air fan (6), and the area surrounded by the air guide ring (91) forms the exhaust air inlet (901). 38.The wall-mounted air conditioner (10000) according to claim 37, wherein, The exhaust air fan (7) comprises: An exhaust air disc (71) connected with the motor shell (53) of the second motor (5); and exhaust air blades (72) connected on the side of the exhaust air disc (71) away from the fresh air fan (6), wherein the exhaust air blades (72) are multiple and arranged in a circumferential direction; An edge of the exhaust air blade (72) away from the exhaust air disc (71) is a blade side edge (721), and at least part of the blade side edge (721) is a gradual change section (7212), and in a direction radially inward of the exhaust air fan (7), the distance between the gradual change section (7212) and the exhaust air disc (71) decreases. 39.The wall-mounted air conditioner (10000) according to claim 38, wherein, All the exhaust air blades (72) form a side edge recess (73) at the gradual change section (7212). An end of the air guide ring (91) is located in the side edge recess (73). 40.The wall-mounted air conditioner (10000) according to claim 1, wherein, At least one of the fresh air fan (6) and the exhaust air fan (7) comprises: A disc; and The blade is connected with the disc, and a transition fillet structure is arranged at the connection position of the blade and the disc.

41. The wall-mounted air conditioner (10000) according to claim 1, wherein, Part of the output shaft (532) is located inside the stator part (51), and the output shaft (532) is rotationally connected with the stator part (51).

42. The wall-mounted air conditioner (10000) according to claim 29, wherein, The wall-mounted air conditioner (10000) further comprises: A fresh air valve (122) is installed inside the fresh air volute (8), and the fresh air valve (122) is used to open or close the fresh air inlet (801); An exhaust air valve (152) is installed inside the exhaust air volute (9), and the exhaust air valve (152) is used to open or close the exhaust air outlet (902). 43.The wall-mounted air conditioner (10000) according to claim 42, wherein, The fresh air valve (122) opens or closes the fresh air inlet (801) in a translational manner, and the exhaust air valve (152) opens or closes the exhaust air outlet (902) in a translational manner. 44.The wall-mounted air conditioner (10000) according to claim 43, wherein, Further comprising: A fresh air valve motor (121) is used to drive the fresh air valve (122) to translate; An exhaust air valve motor (151) is used to drive the exhaust air valve (152) to translate, and the axis direction of the fresh air valve motor (121) is parallel to the axis direction of the exhaust air valve motor (151).

45. The wall-mounted air conditioner (10000) according to claim 42, wherein, Further comprising: The fresh air valve motor (121) comprises: A fresh air motor body (1211) is installed outside the fresh air volute (8); And A fresh air motor shaft (1212) is rotationally arranged in the fresh air motor body (1211), at least partially extends into the fresh air volute (8), and is used to drive the fresh air valve (122) to open or close the fresh air inlet (801).

46. The wall-mounted air conditioner (10000) according to claim 45, wherein The fresh air valve (122) is a baffle, and the moving direction of the fresh air valve (122) is perpendicular to the axis direction of the second motor (5); The fresh air valve motor (121) is used to drive the fresh air valve (122) to move, and the axis direction of the fresh air valve motor (121) is parallel to the axis direction of the second motor (5). 47.The wall-mounted air conditioner (10000) according to claim 46, wherein, The air inlet direction of the fresh air inlet (801) is perpendicular to the axis direction of the fresh air valve motor (121), and the moving direction of the fresh air valve (122) is perpendicular to the air inlet direction of the fresh air inlet (801). 48.The wall-mounted air conditioner (10000) according to claim 45, wherein, Further comprising: A fresh air transmission mechanism (123) is arranged between the fresh air valve motor (121) and the fresh air valve (122), and the fresh air valve motor (121) and the fresh air valve (122) are transmissionally connected through the fresh air transmission mechanism (123), and the fresh air transmission mechanism (123) comprises: A 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). 49.The wall-mounted air conditioner (10000) according to claim 48, wherein, The fresh air transmission mechanism (123) comprises: A fresh air rack (1232) is engaged with the fresh air gear (1231) to drive the fresh air valve (122) to translate along the length direction of the fresh air rack (1232) when the fresh air gear (1231) rotates, the fresh air rack (1232) is fixed to the side of the fresh air valve (122) facing the fresh air gear (1231), and the length direction of the fresh air rack (1232) is perpendicular to the axis direction of the second motor (5). 50.The wall-mounted air conditioner (10000) according to claim 45, wherein, The fresh air motor shaft (1212) at least partially extends into the second volute (82), and the fresh air motor body (1211) is mounted to the fan cover (822). 51.The wall-mounted air conditioner (10000) according to claim 50, wherein, The fan cover (822) comprises: A cover plate (8222) comprises: A cover plate body (82221); and A cover plate flange (82222) protrudes downward relative to the cover plate body (82221), and the cover plate flange (82222) and the second volute half (821) enclose the fresh air inlet (801).

52. The wall-mounted air conditioner (10000) according to claim 51, wherein, The fresh air valve (122) is located on the side of the cover plate body (82221) away from the cover plate flange (82222), and the fresh air valve (122) is parallel to the cover plate body (82221). 53.The wall-mounted air conditioner (10000) according to claim 51, wherein, The cover plate body (82221) is formed with a purification air inlet (804) for communicating with the indoor space, the fresh air valve (122) opens the purification air inlet (804), and the fresh air fan (6) rotates to enable the indoor air to enter the fresh air volute (8) from the purification air inlet (804) and to enable the indoor air entering the fresh air volute (8) to enter the indoor space from the fresh air outlet (802).

54. The wall-mounted air conditioner (10000) according to claim 53, wherein, The purification air inlet (804) and the fresh air inlet (801) are arranged to be spaced apart along the moving direction of the fresh air valve (122), the purification air inlet (804) and the fresh air inlet (801) are consistent in the air inlet direction, and the fresh air valve (122) is adapted to translate in the direction perpendicular to the axis of the second motor (5) to block one of the purification air inlet (804) and the fresh air inlet (801) and open the other.

55. The wall-mounted air conditioner (10000) according to claim 53, wherein, Further comprising: A purification member (11) is mounted in the fresh air cavity (V012), and the purification member (11) is connected with the second volute (82). The fresh air valve (122) opens the fresh air inlet (801) and the fresh air fan (6) rotates to allow outdoor air to enter the fresh air inlet (801) from the fresh air inlet (801) into the fresh air volute (8), and to allow outdoor air entering the fresh air volute (8) to blow through the purification element (11) and then into the room from the fresh air outlet (802); The fresh air valve (122) opens the fresh air inlet (801) and the fresh air fan (6) rotates to allow outdoor air to enter the fresh air inlet (801) from the fresh air inlet (801) into the fresh air inlet (801) into the fresh air volute (8), and to allow outdoor air entering the fresh air volute (8) to blow through the purification element (11) and then into the room from the fresh air outlet (802).

56. The wall-mounted air conditioner (10000) according to any one of claims 42, 45-55, characterized in that, Also includes: Exhaust valve motor (151), the exhaust valve motor (151) includes Exhaust motor body (1511), the exhaust motor body (1511) is installed on the outside of the exhaust volute (9); Exhaust motor shaft (1512), the exhaust motor shaft (1512) is rotatably provided in the exhaust motor body (1511), and the exhaust motor shaft (1512) is used to drive the exhaust valve (152) to open or close the exhaust outlet (902).

57. The wall-mounted air conditioner (10000) according to claim 56, wherein The exhaust valve (152) is a baffle, and the moving direction of the exhaust valve (152) is perpendicular to the axial direction of the second motor (5); The exhaust valve motor (151) is used to drive the exhaust valve (152) to move, and the axial direction of the exhaust valve motor (151) is parallel to the axial direction of the second motor (5).

58. The wall-mounted air conditioner (10000) according to claim 56, wherein, Also includes: Exhaust transmission mechanism (153), the exhaust valve motor (151) and the exhaust valve (152) are connected through the exhaust transmission mechanism (153), and the exhaust transmission mechanism (153) includes: Exhaust gear (1531), the exhaust gear (1531) is located inside the exhaust volute (9), and the exhaust gear (1531) is coaxially arranged with the exhaust motor shaft (1512). 59.The wall-mounted air conditioner (10000) according to claim 58, wherein, The exhaust transmission mechanism (153) includes: Exhaust rack (1532), the exhaust gear (1531) is engaged with the exhaust rack (1532) to drive the exhaust valve (152) to move in the length direction of the exhaust rack (1532) when the exhaust gear (1531) rotates, the exhaust rack (1532) is fixed on the exhaust valve (152), and the exhaust rack (1532) is fixed on the side of the exhaust valve (152) facing the exhaust gear (1531), and the length direction of the exhaust rack (1532) is perpendicular to the axial direction of the second motor (5).

60. The wall-mounted air conditioner (10000) according to claim 56, wherein, The exhaust volute (9) includes Main volute (92); and A secondary volute (93) is detachably connected with the first volute (81), the primary volute (92) is adapted to be detachably connected with the first volute (81) and the secondary volute (93), and the exhaust valve motor (151) is installed on the secondary volute (93).

61. The wall-mounted air conditioner (10000) according to claim 42, wherein, Further comprising: A fresh air valve motor (121) is used to drive a fresh air valve (122) to translate; An exhaust valve motor (151) is used to drive the exhaust valve (152) to rotate, and the axial direction of the fresh air valve motor (121) is perpendicular to the axial direction of the exhaust valve motor (151).

62. The wall-mounted air conditioner (10000) according to any one of claims 42, 45-55, wherein, Further comprising The exhaust valve motor (151) comprises An exhaust motor body (1511) is installed outside the exhaust volute (9); An exhaust motor shaft (1512) is rotatably arranged on the exhaust motor body (1511), and the exhaust motor shaft (1512) is used to drive the exhaust valve (152) to open or close the exhaust air outlet (902).

63. The wall-mounted air conditioner (10000) according to claim 62, wherein The exhaust valve (152) is a baffle plate; The exhaust motor shaft (1512) at least partially extends into the interior of the exhaust volute (9), and the exhaust motor shaft (1512) is used to drive the exhaust valve (152) to rotate at the exhaust air outlet (902) to open or close the exhaust air outlet (902).

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