Wall-mounted air conditioner

Abstract

The application discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a main body, the main body comprising a casing and a base, and further comprising a heat exchange fan, a common motor, a fresh air fan, an exhaust fan and a volute assembly. The common motor is located at one end of the length direction of the heat exchange fan, the fresh air fan is located at the other end of the length direction of the heat exchange fan, and the exhaust fan is located between the fresh air fan and the heat exchange fan. The common motor drives the heat exchange fan, the exhaust fan and the fresh air fan to rotate synchronously in the working state. According to the wall-mounted air conditioner, the heat exchange fan, the exhaust fan and the fresh air fan share the same motor, so that the overall size can be reduced, the number of motors can be reduced, and the cost can be saved.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422953007.7, filed on November 29, 2024, entitled "Wall-mounted Air Conditioner", and to Chinese Patent Application No. 202411750090.6, filed on November 29, 2024, entitled "Wall-mounted Air Conditioner", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of air conditioning technology, and more specifically, to a wall-mounted air conditioner. Background Technology

[0004] In related technologies, some wall-mounted air conditioners are equipped with heat exchange fans, fresh air fans, and exhaust fans. The heat exchange fan is used to exchange heat between the air inside the air conditioner and the indoor space. The fresh air fan draws in fresh air from the outside, and the exhaust fan expels indoor air. Each of these fans requires a separate motor, resulting in higher costs and larger sizes for wall-mounted air conditioners. Therefore, there is room for improvement. Summary of the Invention

[0005] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a wall-mounted air conditioner that reduces the number of motors required and lowers costs.

[0006] According to an embodiment of this application, a wall-mounted air conditioner includes a main body, the main body includes a casing, the casing has an internal cavity, and the casing has a heat exchange air inlet and a heat exchange air outlet.

[0007] The main body also includes a base disposed within the accommodating cavity, on which a volute-like air duct is formed.

[0008] The wall-mounted air conditioner also includes a heat exchange fan, which is installed inside the volute air duct. When the heat exchange fan rotates, it allows the air inside the air conditioner to exchange heat with the indoor space.

[0009] The wall-mounted air conditioner also includes a common motor, which is located inside the accommodating cavity and at one end of the heat exchange fan along its length.

[0010] The wall-mounted air conditioner also includes a fresh air fan, which is a centrifugal fan that draws air in axially and discharges air radially. The fresh air fan is located at the other end of the heat exchange fan along its length.

[0011] The wall-mounted air conditioner also includes an exhaust fan, which is a centrifugal fan that draws air in axially and discharges air radially.

[0012] The exhaust fan is located between the fresh air fan and the heat exchange fan. When in operation, the common motor drives the heat exchange fan, exhaust fan, and fresh air fan to rotate synchronously. Sharing a single motor among the heat exchange fan, exhaust fan, and fresh air fan reduces the overall size and the number of motors required, thus saving costs.

[0013] The wall-mounted air conditioner also includes a volute assembly, in which a fresh air duct and an exhaust air duct are formed. The volute assembly has a fresh air inlet, a fresh air outlet, an exhaust air inlet, and an exhaust air outlet. The fresh air inlet and the fresh air outlet are both connected to the fresh air duct, and the exhaust air inlet and the exhaust air outlet are both connected to the exhaust air duct.

[0014] The fresh air fan is installed in the fresh air duct. The rotation of the fresh air fan can allow outdoor air to enter the fresh air duct from the fresh air inlet, and can allow outdoor air entering the fresh air duct to enter the room from the fresh air outlet.

[0015] The exhaust fan is installed inside the exhaust duct. The rotation of the exhaust fan allows indoor air to enter the exhaust duct from the exhaust inlet and allows indoor air entering the exhaust duct to be exhausted to the outside from the exhaust outlet.

[0016] According to the wall-mounted air conditioner of the present application embodiment, the heat exchange fan, exhaust fan and fresh air fan share the same motor, which can reduce the overall size, reduce the number of motors and save costs.

[0017] According to some embodiments of this application, the common motor includes an output shaft, and the heat exchange fan is fixedly connected to the output shaft.

[0018] The wall-mounted air conditioner also includes a drive shaft, which is adapted to be fixedly connected to the heat exchange fan, the exhaust fan and the fresh air fan.

[0019] According to some embodiments of this application, the drive shaft is adapted to be integrally formed with one of the heat exchange fan, the exhaust fan, and the fresh air fan, and the other two of the heat exchange fan, the exhaust fan, and the fresh air fan are fixedly mounted on the drive shaft.

[0020] According to some embodiments of this application, the fresh air outlet includes a first fresh air outlet and a second fresh air outlet, both of which are connected to the fresh air duct.

[0021] According to some embodiments of this application, the first fresh air outlet is located below the main body to guide fresh air forward and downward into the room;

[0022] The second fresh air outlet is located at the top of the main body to guide fresh air upwards into the room.

[0023] According to some embodiments of this application, the volute assembly includes: a first volute half;

[0024] The volute assembly further includes an exhaust volute half, which is located on the side of the first volute half facing the common motor.

[0025] The volute assembly further includes a common volute, which comprises a fresh air volute section and an exhaust volute section. The fresh air volute section is detachably connected to the first volute half and forms part of the fresh air duct within the first volute half. The exhaust volute section is detachably connected to the exhaust volute half and forms the exhaust duct within the exhaust volute half.

[0026] According to some embodiments of this application, the exhaust volute half and the exhaust volute portion surround the exhaust air inlet, and the exhaust volute half and the first volute half surround the exhaust air outlet.

[0027] According to some embodiments of this application, the volute assembly further includes a second volute located on the side of the first volute half away from the heat exchange fan, and the second volute is detachably connected to the first volute half.

[0028] According to some embodiments of this application, the second volute includes a second volute half, which is located on the side of the first volute half away from the heat exchange fan, and the second volute half is detachably connected to the first volute half. An axial ventilation port is provided on the second volute half, and a volute cavity is formed between the second volute half, the fresh air volute part and the first volute half, and the fresh air fan is located in the volute cavity.

[0029] According to some embodiments of this application, the second volute further includes a fan cover, which is located on the side of the second volute half away from the heat exchange fan, and the fan cover is detachably connected to the second volute half. The cavity enclosed by the fan cover and the second volute half is a fresh air cavity.

[0030] According to some embodiments of this application, the fresh air inlet is formed on the fan cover, the second volute half and the first volute half surround the first fresh air outlet, and the second volute half and the fresh air volute portion surround the second fresh air outlet.

[0031] According to some embodiments of this application, the wall-mounted air conditioner further includes a purification component, which is installed in the fresh air cavity and connected to the second volute. The rotation of the fresh air fan allows outdoor air to enter the fresh air cavity from the fresh air inlet, and allows the outdoor air entering the fresh air cavity to be blown through the purification component, then into the volute cavity, and into the room from the fresh air outlet.

[0032] According to some embodiments of this application, the purification component includes a filter screen covering the axial vent.

[0033] According to some embodiments of this application, the filter screen is a square mesh, and the side length of the filter screen is greater than the diameter of the axial vent.

[0034] According to some embodiments of this application, a portion of the fresh air cavity constitutes an empty cavity, the cavity being located on the side of the purification component away from the fresh air fan, and the fresh air inlet communicating with the cavity.

[0035] According to some embodiments of this application, the fan cover is further provided with an installation port, and the purification component can be detachably assembled into the fresh air cavity through the installation port.

[0036] According to some embodiments of this application, a purification air inlet for communicating with the room is formed on the second volute. The rotation of the fresh air fan can cause indoor air to enter the fresh air cavity from the purification air inlet for purification by the purification component, and can also cause indoor air entering the fresh air cavity to be blown through the purification component, then enter the volute cavity and enter the room from the fresh air outlet.

[0037] According to some embodiments of this application, the purification air inlet is located at the bottom of the second volute and faces downwards.

[0038] According to some embodiments of this application, in the height direction of the main body, both the fresh air inlet and the exhaust outlet are located below the main body.

[0039] According to some embodiments of this application, the fresh air fan includes: a fresh air impeller and fresh air blades, the fresh air blades being located at the outer edge of the fresh air impeller and extending along the axial direction of the fresh air impeller, and the total axial thickness of the fresh air impeller and the fresh air blades being h1;

[0040] The exhaust fan includes an exhaust wheel and exhaust blades. The exhaust blades are located on the outer edge of the exhaust wheel and extend along the axial direction of the exhaust wheel. The total thickness of the exhaust wheel and the exhaust blades in the axial direction is h2, where h2 < h1.

[0041] According to some embodiments of this application, the fresh air blades extend along the axial direction of the fresh air impeller in a direction away from the exhaust fan.

[0042] According to some embodiments of this application, the exhaust blades extend along the axial direction of the exhaust wheel in a direction away from the fresh air fan.

[0043] According to some embodiments of this application, the outer diameter of the fresh air fan is larger than the outer diameter of the heat exchange fan.

[0044] According to some embodiments of this application, the wall-mounted air conditioner further includes: a first bearing housing and a first bearing, wherein the first bearing housing is disposed on the base, and the first bearing is disposed within the first bearing housing and is used to support the drive shaft.

[0045] According to some embodiments of this application, the wall-mounted air conditioner further includes: a second bearing, which is disposed between the exhaust fan and the fresh air fan and is used to support the drive shaft.

[0046] According to some embodiments of this application, the wall-mounted air conditioner further includes an indoor heat exchanger, which is disposed within the accommodating cavity.

[0047] The wall-mounted air conditioner also includes an end plate, which is located at one end of the indoor heat exchanger near the exhaust fan and is connected to the indoor heat exchanger. The end plate is used to mount the indoor heat exchanger on the base.

[0048] The wall-mounted air conditioner also includes a heat exchanger outlet pipe, which is connected to the end of the indoor heat exchanger facing the common motor.

[0049] Wherein, along the length of the main body, the common motor at least partially overlaps with the heat exchanger outlet pipe.

[0050] According to some embodiments of this application, the outer diameter of the fresh air fan is D1, and the thickness of the main body in the front-rear direction is T, where D1:T≥1:1.7 and D1:T≤1:1.3.

[0051] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0052] Figure 1 This is a perspective view of a wall-mounted air conditioner according to an embodiment of this application;

[0053] Figure 2This is a perspective view of the main body of a wall-mounted air conditioner according to some embodiments;

[0054] Figure 3 It is a perspective view of the interior of the main body in one direction according to some embodiments;

[0055] Figure 4 This is a perspective view of the interior of the main body from another direction according to some embodiments;

[0056] Figure 5 This is yet another perspective view of the interior of the body in another direction according to some embodiments;

[0057] Figure 6 This is a connection diagram of the common motor, heat exchange fan, first bearing, exhaust fan and fresh air fan;

[0058] Figure 7 This is a perspective view of a bidirectional ventilation assembly according to some embodiments;

[0059] Figure 8 This is another perspective view of a bidirectional ventilation assembly according to some embodiments;

[0060] Figure 9 A side view of a bidirectional ventilation assembly according to some embodiments;

[0061] Figure 10 for Figure 9 A cross-sectional view along the AA direction;

[0062] Figure 11 This is an exploded view of a bidirectional ventilation assembly according to some embodiments;

[0063] Figure 12 This is a schematic diagram of a fresh air fan according to some embodiments;

[0064] Figure 13 This is a schematic diagram of an exhaust fan according to some embodiments;

[0065] Figure 14 This is a connection diagram of the common motor, heat exchange fan, first bearing, exhaust fan, second bearing and fresh air fan;

[0066] Figure 15 This is a schematic diagram of the fresh air fan inside the fresh air volute and the first volute half.

[0067] Figure label:

[0068] Wall-mounted air conditioner 10000, main body 1000, casing 1, accommodating cavity V1,

[0069] Heat exchanger air inlet 101, heat exchanger air outlet 102, first ventilation duct V04, and pipe clearance opening 104.

[0070] Indoor heat exchanger 2, outlet pipe end 21, base 3, end plate 31

[0071] Heat exchange fan 41, common motor 42, output shaft 421, drive shaft 43

[0072] Fresh air fan 6, fresh air impeller 61, fresh air blades 62, exhaust fan 7, exhaust impeller 71, exhaust blades 72

[0073] Fresh air duct V01, volute cavity V011, fresh air cavity V012, air cavity V0121, fresh air inlet 801, first fresh air outlet 802, installation port 803, purified air inlet 804, second fresh air outlet 808.

[0074] First volute half 81, first enclosure plate 811, second volute 82, second volute half 821, axial ventilation port 8211, fan cover 822.

[0075] Exhaust volute half 9, exhaust duct V02, exhaust inlet 901, exhaust outlet 902

[0076] Cleanroom component 11

[0077] Public volute 12, fresh air volute section 121, second enclosure 1211, exhaust volute section 122

[0078] First bearing housing 131, first bearing 132, second bearing 133

[0079] Panel 15, wind deflector 16. Detailed Implementation

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] "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.

[0085] 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.

[0086] 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).

[0087] 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.

[0088] Some embodiments of the present invention provide a wall-mounted air conditioner 10000.

[0089] 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.

[0090] 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.

[0091] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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 common motor 42 that drives the heat exchange fan 41 via a data cable to transmit communication information.

[0100] 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.

[0101] 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).

[0102] 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.

[0103] Some air-conditioning systems using this technology draw in fresh air from the outside through a fresh air intake device and exhaust indoor air through an exhaust device. However, the heat exchange fan, fresh air intake device, and exhaust device all require separate motors to drive them, resulting in high costs and large sizes for wall-mounted air conditioners.

[0104] To address the aforementioned issues, some embodiments of the present invention provide a wall-mounted air conditioner 10000, which reduces the overall size and number of motors by having the heat exchange fan, exhaust fan, and fresh air fan share the same motor, thereby saving costs.

[0105] 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.

[0106] The following is combined Figures 1-15 Detailed description of the wall-mounted air conditioner 10000 according to an embodiment of this application.

[0107] Reference Figure 1 and Figure 2As shown, the wall-mounted air conditioner 10000 according to an embodiment of this application includes a main body 1000, the main body 1000 includes a casing 1, the casing 1 has an accommodating cavity V1 formed inside, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the casing 1. The casing 1 can play a protective role and constitute the overall external structure of the wall-mounted air conditioner 10000.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] Reference Figures 3-5 The 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 is formed on the base 3. After the indoor air enters the casing 1, the flow direction is guided by the volute air duct, ensuring that the resistance encountered by the indoor air when flowing through the indoor heat exchanger 2 is small.

[0112] Reference Figures 4-5 The wall-mounted air conditioner 10000 also includes a heat exchange fan 41, which is installed inside the volute air duct. When the heat exchange fan 41 rotates, it can exchange heat between the air inside the air conditioner and the indoor space.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] For example, the height direction of the main body 1000 is the vertical direction.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] Reference Figures 4-6 , Figure 14 The wall-mounted air conditioner 10000 also includes a common motor 42, which is disposed within the accommodating cavity V1 and located at one end of the heat exchange fan 41 along its length. This facilitates the installation and maintenance of the common motor 42, and the main body 1000 does not need to become excessively tall or thick due to the placement of the common motor 42. Here, the height of the main body 1000 is aligned with the vertical direction, and the thickness of the main body 1000 is aligned with the front-to-back direction.

[0125] In some embodiments, the wall-mounted air conditioner 10000 may include a motor bracket, which can be fixed on the base 3. The motor bracket is used to fix the common motor 42, thereby the common motor 42 can be securely installed on the main body 1000.

[0126] 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 1-3 The left and right directions are shown.

[0127] Reference Figure 8 , Figures 10-12 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 at the other end of the heat exchange fan 41 along its length, that is, the fresh air fan 6 is located on the side of the heat exchange fan 41 away from the common motor 42.

[0128] Reference Figure 7 , Figures 9-11 , Figure 13 The wall-mounted air conditioner 10000 also includes an exhaust fan 7, which is a centrifugal fan that draws air in axially and discharges air radially.

[0129] Among them, the exhaust fan 7 is located between the fresh air fan 6 and the heat exchange fan 41, and the common motor 42 drives the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 to rotate synchronously when in operation.

[0130] 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.

[0131] 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.

[0132] In some embodiments, refer to Figures 5-6 , Figures 10-11 , Figure 14 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.

[0133] 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.

[0134] In some embodiments, both the fresh air fan 6 and the exhaust fan 7 are centrifugal fans, and the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 are all driven by the same motor. This not only saves the number of motors, reduces the overall size and saves costs, but also maintains the three fans stacked along the axial direction of the common motor 42.

[0135] 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 heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 are all driven by the same motor, the three fans rotate synchronously and in unison. There is no need for a large gap between the fresh air fan 6 and the exhaust fan 7, and the axial distance between the fresh air fan 6 and the exhaust fan 7 can be arranged relatively close.

[0136] The common motor 42, heat exchange fan 41, exhaust fan 7 and fresh air fan 6 are arranged along the length of the main body 1000, rather than along the thickness or height of the main body 1000, so that the main body 1000 of the wall-mounted air conditioner 10000 has a slender shape and a thin and light appearance.

[0137] In some embodiments, the common motor 42 is an external rotor motor.

[0138] In other embodiments, the common motor 42 is an internal rotor motor.

[0139] Reference Figures 7-11 The wall-mounted air conditioner 10000 also includes a volute assembly, in which a fresh air duct V01 and an exhaust air duct V02 are formed. The volute assembly has a fresh air inlet 801, a fresh air outlet, an exhaust air inlet 901, and an exhaust air outlet 902. The fresh air inlet 801 and the fresh air outlet are both connected to the fresh air duct V01, and the exhaust air inlet 901 and the exhaust air outlet 902 are both connected to the exhaust air duct V02.

[0140] The fresh air fan 6 is installed inside the fresh air duct V01. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air duct V01 through the fresh air inlet 801, and allows outdoor air entering the fresh air duct V01 to enter the room through the fresh air outlet. The fresh air fan 6 drives the airflow to be drawn in through the fresh air inlet 801 and exhausted into the room through the fresh air outlet. The operation of the fresh air fan 6 provides the power for the flow of fresh air.

[0141] 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.

[0142] In some embodiments, the number of fresh air outlets can be one.

[0143] In some embodiments, the number of fresh air outlets can be multiple, for example, two, three, four or more. By setting multiple fresh air outlets, the air volume can be increased.

[0144] In some embodiments, there are multiple fresh air outlets, and the multiple fresh air outlets are arranged in the same direction.

[0145] In some embodiments, there are multiple fresh air outlets, which are arranged in different directions.

[0146] In some embodiments, the fresh air outlet includes a first fresh air outlet 802 and a second fresh air outlet 808, both of which are connected to the fresh air duct V01. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air duct V01 from the fresh air inlet 801, and allows outdoor air entering the fresh air duct V01 to enter the room from the first fresh air outlet 802 and the second fresh air outlet 808.

[0147] An exhaust fan 7 is installed within the exhaust duct V02. The rotation of the exhaust fan 7 allows indoor air to enter the exhaust duct V02 through the exhaust inlet 901 and allows indoor air entering the exhaust duct V02 to be exhausted to the outside through the exhaust outlet 902. The exhaust fan 7 drives airflow to be drawn in through 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.

[0148] 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.

[0149] The fresh air fan 6, the exhaust fan 7, and the volute assembly constitute a two-way ventilation system, which is located within the main body 1000. This system provides fresh air to the room and exhausts indoor air to the outside.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] In some embodiments, the bidirectional ventilation component can selectively operate in either fresh air mode or exhaust mode using a valve. Specifically, 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. 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.

[0155] Understandably, when the wall-mounted air conditioner 10000 is in cooling mode, the two-way ventilation component draws in fresh air from the outside to the inside, and the cooling capacity generated by the wall-mounted air conditioner 10000 can still remain indoors, resulting in minimal cooling loss. By exhausting indoor air to the outside through the exhaust duct V02, and setting the exhaust air volume to be less than the fresh air volume, cooling loss can be reduced.

[0156] 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 ventilation component, it only increases the lateral length. The height and thickness of the main body 1000 can remain largely unchanged or only slightly different, making the main body 1000 thin and light. When hung on the wall, it will not be too obtrusive and will not affect the layout of the indoor space. It will also not be too heavy and will not make it difficult to fix the wall-mounted air conditioner 10000, reducing the risk of it falling off the wall. The wall-mounted air conditioner 10000 remains a thin and light model overall, which is not only aesthetically pleasing when hung on the wall, but also keeps the weight under control.

[0157] According to the wall-mounted air conditioner 10000 of this application embodiment, the heat exchange fan 41, exhaust fan 7, and fresh air fan 6 share the same motor, which can reduce the overall size, reduce the number of motors, and save costs. The architecture of the wall-mounted air conditioner 10000 from right to left is as follows: common motor 42, heat exchange fan 41, exhaust fan 7, and fresh air fan 6, with the exhaust fan 7 located between the heat exchange fan 41 and the fresh air fan 6. The heat exchange fan 41 is located closer to the common motor 42, and its longer length, combined with its proximity to the common motor 42, results in better dynamic balance of the overall architecture and higher overall integration.

[0158] The heat exchange fan 41, exhaust fan 7, and fresh air fan 6 are driven by the same motor, enabling them to rotate and stop simultaneously at the same speed. In related technologies, the fresh air fan and exhaust fan are driven by separate motors, which results in high costs. The method of using one motor to drive three fans in this application saves two motors and greatly reduces costs.

[0159] In some embodiments of this application, reference is made to Figure 6 , Figure 14 As shown, the common motor 42 includes an output shaft 421, and a heat exchange fan 41 is fixedly connected to the output shaft 421. When the output shaft 421 rotates, it drives the heat exchange fan 41 to rotate.

[0160] In some embodiments of this application, reference is made to Figures 4-6 , Figure 14 As shown, the wall-mounted air conditioner 10000 also includes a drive shaft 43, which is adapted to be fixedly connected to the heat exchange fan 41, the exhaust fan 7, and the fresh air fan 6. When the output shaft 421 drives the heat exchange fan 41 to rotate, the heat exchange fan 41 drives the exhaust fan 7 and the fresh air fan 6 to rotate synchronously through the drive shaft 43. Thus, a common motor 42 drives the three fans—heat exchange fan 41, exhaust fan 7, and fresh air fan 6—to rotate, reducing the number of motors and saving costs.

[0161] In some embodiments of this application, reference is made to Figures 5-6 , Figure 14 As shown, the output shaft 421 and the transmission shaft 43 are arranged coaxially.

[0162] In some embodiments of this application, the drive shaft 43 is adapted to be integrally formed with one of the heat exchange fan 41, the exhaust fan 7, and the fresh air fan 6, while the other two of the heat exchange fan 41, the exhaust fan 7, and the fresh air fan 6 are fixedly mounted on the drive shaft 43.

[0163] For example, the drive shaft 43 and the heat exchange fan 41 are formed as a single unit, and the exhaust fan 7 and the fresh air fan 6 are fixedly mounted on the drive shaft 43. The drive shaft 43 and the heat exchange fan 41 can be welded together or are integrally injection molded parts. The exhaust fan 7 and the drive shaft 43, and the fresh air fan 6 and the drive shaft 43 can have a non-circular surface fit or an interference fit to prevent relative rotation between the exhaust fan 7 and the drive shaft 43, and between the fresh air fan 6 and the drive shaft 43.

[0164] For example, the drive shaft 43 and the exhaust fan 7 are formed as a single unit, and the heat exchange fan 41 and the fresh air fan 6 are fixedly mounted on the drive shaft 43. The drive shaft 43 and the exhaust fan 7 can be welded together or are integrally injection molded parts. The heat exchange fan 41 and the drive shaft 43, and the fresh air fan 6 and the drive shaft 43 can have a non-circular surface fit or an interference fit to prevent relative rotation between the heat exchange fan 41 and the drive shaft 43, and between the fresh air fan 6 and the drive shaft 43.

[0165] For example, the drive shaft 43 and the fresh air fan 6 are formed as a single unit, and the exhaust fan 7 and the heat exchange fan 41 are fixedly mounted on the drive shaft 43. The drive shaft 43 and the fresh air fan 6 can be welded together or are integrally injection molded. The exhaust fan 7 and the drive shaft 43, and the heat exchange fan 41 and the drive shaft 43 can have a non-circular surface fit or an interference fit to prevent relative rotation between the exhaust fan 7 and the drive shaft 43, and between the heat exchange fan 41 and the drive shaft 43.

[0166] In some embodiments of this application, reference is made to Figures 3-4 , Figures 7-11 As shown, the volute assembly includes a first volute half 81 and an exhaust volute half 9, with the exhaust volute half 9 located on the side of the first volute half 81 facing the common motor 42. The exhaust volute half 9 is detachably connected to the first volute half 81.

[0167] The volute assembly also includes a common volute 12, which includes a fresh air volute portion 121. The fresh air volute portion 121 is detachably connected to the first volute half 81, and the fresh air volute portion 121 and the first volute half 81 form part of a fresh air duct V01.

[0168] The common volute 12 includes: an exhaust volute portion 122, which is detachably connected to the exhaust volute half 9, and an exhaust duct V02 is formed within the exhaust volute portion 122 and the exhaust volute half 9.

[0169] In some embodiments, refer to Figures 3-4 , Figures 7-11As shown, the fresh air volute 121 and the exhaust volute 122 can be a single piece, which reduces the number of volutes and thus reduces the assembly steps of the volute assembly. When installing the bidirectional ventilation assembly on the main body 1000, the common motor 42, heat exchange fan 41, exhaust fan 7, and fresh air fan 6 can be assembled into a motor-fan assembly first. Then, the first volute half 81 and the exhaust volute half 9 are installed on the base. Subsequently, the motor-fan assembly is installed on the main body 1000, so that the fresh air fan 6 is located inside the first volute half 81 and the exhaust fan 7 is located inside the exhaust volute half 9. Finally, the common volute 12 is placed over the exhaust fan 7 and the fresh air fan 6. The fresh air volute 121 is connected and fixed to the first volute half 81 with fasteners, and the exhaust volute 122 is connected and fixed to the exhaust volute half 9 with fasteners.

[0170] In some embodiments, the fresh air volute 121 and the exhaust volute 122 can be separate components. When installing the bidirectional ventilation assembly onto the main body 1000, the common motor 42, heat exchange fan 41, exhaust fan 7, and fresh air fan 6 can be assembled into a motor-fan assembly first. Then, the first volute half 81 and the exhaust volute half 9 are installed on the base. Subsequently, the motor-fan assembly is installed onto the main body 1000, such that the fresh air fan 6 is located inside the first volute half 81, and the exhaust fan 7 is located inside the exhaust volute half 9. Finally, the fresh air volute 121 is connected and fixed to the first volute half 81 with fasteners, and the exhaust volute 122 is connected and fixed to the exhaust volute half 9 with fasteners, so that the fresh air volute 121 covers the top of the fresh air fan 6, and the exhaust volute 122 covers the top of the exhaust fan 7.

[0171] Alternatively, the fastener can be a bolt, screw, etc., which can securely connect two parts.

[0172] Optionally, the fresh air volute 121 and the first volute half 81 can also be connected and fixed by a snap-fit ​​structure, and the exhaust volute 122 and the exhaust volute half 9 can also be connected and fixed by a snap-fit ​​structure.

[0173] The fresh air volute portion 121 and the first volute half 81 constitute a part of the fresh air volute. In some embodiments of this application, the exhaust volute half 9 and the exhaust volute portion 122 constitute the exhaust volute, the exhaust volute half 9 and the exhaust volute portion 122 enclose an exhaust air inlet 901, and the exhaust volute half 9 and the first volute half 81 enclose an exhaust air outlet 902.

[0174] In some embodiments, such as Figure 3As shown, a portion of the exhaust air inlet 901 is formed on the exhaust volute half 9, and another portion is formed on the exhaust volute portion 122, with the axial direction of the exhaust air inlet 901 along the length of the heat exchange fan 41. In other words, the exhaust air inlet 901 is directly opposite the axial air intake end of the exhaust fan 7, resulting in low air resistance when the exhaust fan 7 enters through the exhaust air inlet 901, which helps ensure sufficient exhaust airflow. When exhaust airflow is relatively easy to obtain, a smaller exhaust fan 7 can be selected, further reducing the size of the bidirectional ventilation assembly.

[0175] The exhaust air inlet 901 is axially oriented towards the indoor heat exchanger 2, that is, the air inlet area of ​​the exhaust air inlet 901 is oriented 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 air duct V02 through the exhaust air inlet 901, so that the air volume at the exhaust air inlet 901 is sufficient.

[0176] The exhaust fan 7 and the fresh air fan 6 are located on the same side of the heat exchange fan 41. The exhaust fan 7 is installed within the exhaust duct V02 formed by the exhaust volute, and the fresh air fan 6 is installed within the fresh air duct V01 formed by the fresh air volute. The volute sidewalls of adjacent positions of the exhaust fan 7 and the fresh air fan 6 can simultaneously serve as the volute sidewalls of both the exhaust fan 7 and the fresh air fan 6. For example, the plate along the vertical direction of the fresh air volute portion 121 and the first volute half 81 can serve as the volute sidewall shared by the exhaust fan 7 and the fresh air fan 6, thus saving one component and improving overall integrity.

[0177] In some embodiments, combined with Figures 2-4 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 duct V02 through the exhaust air inlet 901.

[0178] 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.

[0179] In some embodiments of this application, reference is made to Figures 3-4 , Figures 7-11 As shown, the volute assembly also includes a second volute 82, which is located on the side of the first volute half 81 away from the heat exchange fan 41, and the second volute 82 is detachably connected to the first volute half 81.

[0180] In some embodiments of this application, the second volute 82 includes a second volute half 821, which is located on the side of the first volute half 81 away from the heat exchange fan 41, and the second volute half 821 is detachably connected to the first volute half 81. An axial ventilation port 8211 is provided on the second volute half 821, and a volute cavity V011 is formed between the second volute half 821, the fresh air volute part 121 and the first volute half 81. The fresh air fan 6 is located in the volute cavity V011.

[0181] In some embodiments of this application, the second volute 82 further includes a fan cover 822, which is located on the side of the second volute half 821 away from the heat exchange fan 41, and the fan cover 822 is detachably connected to the second volute half 821. The cavity enclosed by the fan cover 822 and the second volute half 821 is the fresh air cavity V012.

[0182] In some embodiments of this application, a fresh air inlet 801 is formed on a fan cover 822, a first fresh air outlet 802 is formed by the second volute half 821 and the first volute half 81, and a second fresh air outlet 808 is formed by the second volute half 821 and the fresh air volute portion 121.

[0183] Figure 15 The diagram shows a fresh air fan 6 within the fresh air volute portion 121 and the first volute half 81. The first volute half 81 has a first surrounding plate 811 arranged radially outside the fresh air fan 6, and the fresh air volute portion 121 has a second surrounding plate 1211 arranged radially outside the fresh air fan 6. The first surrounding plate 811 and the second surrounding plate 1211 are connected to form a fresh air volute curve. Since the fresh air fan 6 and the heat exchange fan 41 are coaxially arranged, and the outer diameter of the fresh air fan 6 is larger than the outer diameter of the heat exchange fan 41, ... Furthermore, since the thickness of the main body 1000 is fixed, the arrangement of the fresh air fan 6 within the fresh air volute 121 and the first volute half 81 is skewed, and the fresh air fan 6 cannot be located at the center of the fresh air volute curve. This results in a reduction in the air volume ejected from the first fresh air outlet 802. Therefore, by setting a second fresh air outlet 808 above the fresh air fan 6, the air volume ejected from the fresh air volute is increased, thus compensating for the reduction in air volume caused by the limitation of the position of the fresh air fan 6.

[0184] When the fresh air fan 6 and the heat exchange fan 41 are coaxially arranged, the axis of the fresh air fan 6 is determined. A conventional volute curve design cannot unfold, limiting the work done by the blades of the fresh air fan 6 and significantly reducing airflow. When two fresh air outlets are designed, the space required for the volute curve to unfold is half that of a single outlet. The blades of the fresh air fan 6 can then perform all their work, blowing air out from both outlets, thus increasing the airflow.

[0185] In other words, compared to a volute assembly that only has a first fresh air outlet 802, the volute assembly of this application has both a first fresh air outlet 802 and a second fresh air outlet 808, resulting in a larger air volume.

[0186] By processing the volute assembly into at least three parts—a first volute half 81, a second volute half 821, a fan cover 822, an exhaust volute half 9, and a common volute 12—the manufacturing and assembly difficulties can be reduced. Furthermore, manufacturing such a complex housing in parts facilitates quality control. The first volute half 81 is detachably connected to the exhaust volute half 9; the second volute half 821 is detachably connected to the first volute half 81; the fan cover 822 is detachably connected to the second volute half 821; and the common volute 12 is detachably connected to both the first volute half 81 and the exhaust volute half 9. This facilitates assembly and subsequent adjustments and maintenance.

[0187] It is understandable that the two parts can be detachably connected, which can be achieved through fasteners or snap-fit ​​structures.

[0188] 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.

[0189] 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.

[0190] Similarly, the exhaust volute half 9 can be made of plastic, thus being lightweight and low-cost. For example, the exhaust volute half 9 can be an injection-molded part. In some embodiments, the exhaust volute half 9 can also be made of resin, metal, etc.

[0191] The first volute half 81 can be made of plastic, thus being lightweight and low-cost. For example, the first volute half 81 can be an injection-molded part. In some embodiments, the first volute half 81 can also be a resin part, a metal part, etc.

[0192] The common volute 12 can be made of plastic, thus being lightweight and low-cost. For example, the common volute 12 can be an injection-molded part. In some embodiments, the common volute 12 can also be made of resin, metal, etc.

[0193] The second volute 82 can be made of plastic, thus being lightweight and low-cost. For example, the second volute 82 can be an injection-molded part. In some embodiments, the second volute 82 can also be a resin part, a metal part, etc.

[0194] In some embodiments of this application, reference is made to Figures 2-5 , Figures 7-11The wall-mounted air conditioner 10000 also includes a purification component 11, which 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.

[0195] For example, the purification component 11 is installed inside the fresh air cavity V012, and the purification component 11 is located at the axial air inlet end of the fresh air fan 6. 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. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air cavity V012 from the fresh air inlet 801, and allows the outdoor air entering the fresh air cavity V012 to be blown through the purification component 11, then into the volute cavity V011, and into the room from the fresh air outlet.

[0196] 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.

[0197] In some embodiments, the fresh air outlet includes a first fresh air outlet 802 and a second fresh air outlet 808, both of which are connected to the fresh air duct V01. Thus, outdoor air entering the volute cavity V011 enters the room through the first fresh air outlet 802 and the second fresh air outlet 808.

[0198] In some embodiments of this application, such as Figure 11 As shown, the purification component 11 includes a filter (not shown) that covers the axial vent 8211. The filter covers the entire air intake end of the fresh air fan 6, providing a large coverage area and excellent filtration. The filter's placement helps ensure sufficient contact area with the flowing air, while also being lightweight and producing low noise. For example, the filter may be made of HEPA mesh, thus possessing strong adsorption capacity and excellent dust filtration efficiency.

[0199] In some embodiments of this application, the filter screen is plate-shaped, so that the filter screen is thin overall and will not occupy too much thickness when placed in the two-way ventilation assembly.

[0200] In some embodiments of this application, the filter screen is square, which facilitates the positioning and installation of the filter screen.

[0201] In some embodiments of this application, the filter screen is a square mesh, with its side length 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 screen greater than the diameter of the axial vent 8211, all fresh air entering the axial vent 8211 can flow through the filter screen, resulting in high filtration cleanliness.

[0202] In some embodiments of this application, reference is made to Figure 10 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.

[0203] 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.

[0204] 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:

[0205] 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.

[0206] 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.

[0207] Third, reduce airflow impact and absorb noise.

[0208] 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.

[0209] In some embodiments of this application, combined with Figures 10-11 As shown, the fan cover 822 is also provided with an installation port 803, through which the purification component 11 can be detachably installed into the fresh air chamber V012. This facilitates the removal of the purification component 11 when it is damaged or saturated, making it convenient for maintenance or replacement.

[0210] In some embodiments of this application, combined with Figures 2-5 , Figure 11 As shown, in the front-rear direction of the main body 1000, 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 15. When the panel 15 is opened or rotated upward, the mounting port 803 can be exposed, which facilitates the disassembly of the purification component 11.

[0211] It is also possible that in some designs, the mounting port 803 will be located at the bottom of the main body 1000.

[0212] In some embodiments of this application, such as Figure 8 , Figure 10 As shown, a purification air inlet 804 for connecting to the indoor environment is formed on the second volute 82. The rotation of the fresh air fan 6 allows indoor air to enter the fresh air chamber V012 through the purification air inlet 804 for purification by the purification component 11. It also allows the indoor air entering the fresh air chamber V012 to pass through the purification component 11, then enter the volute chamber V011, and finally enter the indoor environment through the fresh air outlet. This allows indoor air to enter the fresh air duct V01 from the purification air inlet 804, undergo purification, and then enter the indoor environment through the fresh air outlet.

[0213] 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.

[0214] In some embodiments, the fresh air outlet includes a first fresh air outlet 802 and a second fresh air outlet 808, both of which are connected to the fresh air duct V01. Thus, indoor air entering the volute cavity V011 enters the room through the first fresh air outlet 802 and the second fresh air outlet 808.

[0215] In some embodiments of this application, the purification air inlet 804 can be connected to the heat exchange air inlet 101. There is no need for a physical pipe to connect the purification air inlet 804 and the heat exchange air inlet 101, which reduces the number of parts, reduces the volume occupied, and facilitates layout.

[0216] In some embodiments of this application, such as Figure 8As shown, the purification air inlet 804 is located at the bottom of the second volute 82 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 and extend downwards, facilitating processing and shaping. 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 allows for centralized switching to select one inlet to open, reducing the number of switches required.

[0217] In some embodiments, combined with Figure 4 , Figure 8 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.

[0218] In some embodiments of this application, 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.

[0219] The fresh air inlet 801 is located below the main body 1000, and 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-back direction, which would make the main body 1000 too thick. Thus, the wall-mounted air conditioner 10000 can still maintain a slim and light shape.

[0220] The portion of the fresh air volute structure formed by the fresh air volute 121 and the first volute half 81 for installing the fresh air fan 6 is circular. Since the axis of the fresh air fan 6 extends along the length of the heat exchange fan 41, the circle has free space on the front and rear sides of the bottom. This space can be used to set the fresh air inlet 801 to connect 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, which can control the height of the main body 1000.

[0221] In some embodiments, the exhaust outlet 902 is located below the main body 1000 in the height direction. Similarly, the exhaust outlet 902 needs to be connected to a duct to guide indoor air to the outside, which is referred to here as an exhaust outlet pipe. The exhaust outlet pipe can be a part 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.

[0222] 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. Thus, the wall-mounted air conditioner 10000 can still maintain a slim and light shape.

[0223] The portion of the exhaust volute structure formed by the exhaust volute section 122 and the exhaust volute half 9 for mounting the exhaust fan 7 is circular. Since the axis of the exhaust fan 7 extends along the length of the heat exchange fan 41, this circular shape provides 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 half 9 can be arranged generally vertically and can be placed in the aforementioned front or rear free space. An exhaust outlet 902 is provided here to connect to the exhaust pipe, allowing the connection between the exhaust pipe and the exhaust outlet 902 to be placed in this free space without occupying additional space, thus controlling the height of the main body 1000.

[0224] In some embodiments, the wall-mounted air conditioner 10000 may include: a fresh air inlet pipe connected to the fresh air inlet 801 and an exhaust outlet pipe connected to the exhaust outlet 902, such as Figures 1-2 As shown, a duct clearance opening 104 is provided on the side wall of the casing 1. The fresh air inlet pipe connects to the fresh air inlet 801 from the bottom of the main body 1000, bends and extends laterally, then extends out from the duct clearance opening 104 on the side wall of the casing 1, and then extends to the outside. The exhaust outlet pipe connects to the exhaust outlet 902 from the bottom of the main body 1000, bends and extends laterally, then extends out from the duct clearance opening 104 on the side wall of the casing 1, and then extends to the outside.

[0225] The fresh air inlet pipe and the exhaust outlet pipe are two independent pipes, which helps to separate the fresh air flow path and the exhaust air flow path, so that they do not cross each other and reduce the risk of air leakage caused by cross-flow.

[0226] 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.

[0227] 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.

[0228] In some embodiments of this application, the first fresh air outlet 802 is located below the main body 1000 to guide fresh air forward and downward into the room. Thus, the air blown from the first fresh air outlet 802 can directly reach the user.

[0229] In some embodiments of this application, the first fresh air outlet 802 can discharge air into the room through the heat exchange outlet 102, thus eliminating the need to create a new outlet on the casing and simplifying the manufacturing process of the casing 1. Furthermore, the air outlet area of ​​the first fresh air outlet 802 overlaps with the air outlet area of ​​the heat exchange outlet 102, which facilitates the mixing of fresh air with the heat-exchanged indoor air. This improves the uniformity of the mixed fresh air in the indoor air and allows the fresh air to absorb the cold or heat from the heat-exchanged indoor air, bringing the fresh air temperature closer to the indoor temperature and improving ventilation comfort.

[0230] In some embodiments of this application, the housing 1 is provided with a housing air outlet, which is spaced apart from the heat exchange air outlet 102. The first fresh air outlet 802 can discharge air into the room through the housing air outlet. The housing air outlet can be correspondingly located at the bottom of the housing 1.

[0231] Since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the heat exchange air outlet 102 is located relatively low on the casing 1, the first fresh air outlet 802 blows fresh air from below, making the air outlet area of ​​the casing air outlet 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 air blowing.

[0232] The air outlet 802 is in the opposite direction to the air inlet 101. The fresh air blown out from the first fresh air outlet 802 will not be drawn into the heat exchange inlet 101, reducing the proportion of fresh air intake at the heat exchange inlet 101. This results in a larger total air volume output from the wall-mounted air conditioner 10000, improving the overall air circulation efficiency of the indoor air.

[0233] The first 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.

[0234] When the first 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 reach a sufficiently long distance.

[0235] In some embodiments of this application, the housing 1 has an air outlet grille to adjust the direction of fresh air flow.

[0236] In some embodiments of this application, such as Figures 1-4 As shown, the second fresh air outlet 808 is located at the top of the main body 1000 to guide fresh air upwards into the room. When the wall-mounted air conditioner 10000 is in cooling mode, the air blown out from the second fresh air outlet 808 can descend from top to bottom, thus giving the user a top-down shower breeze experience, making the user feel cooler and reducing the indoor temperature more quickly.

[0237] In some embodiments of this application, such as Figure 12 As shown, 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 thickness of the fresh air impeller 61 and the fresh air blades 62 in the axial direction is h1. Here, the fresh air impeller 61 on the fresh air fan 6 can be a single impeller or at least two that are spaced apart along the axial direction. h1 is the maximum dimension of the fresh air fan 6 in the axial direction.

[0238] like Figures 10-13 As shown, 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 thickness of the exhaust wheel 71 and the exhaust blades 72 in the axial direction 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. h2 is the maximum dimension of the exhaust fan 7 in the axial direction.

[0239] Where h2 < h1. This configuration ensures that the fresh air volume is greater than the exhaust air volume while allowing for a greater axial thickness in 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 its smaller axial thickness allows for a reduction in exhaust airflow, while also decreasing the axial dimensions of the bidirectional ventilation assembly.

[0240] In some embodiments of this application, the fresh air fan 6 is a single-suction centrifugal fan with unilateral air intake, and the fresh air blades 62 extend along the axial direction of the fresh air impeller 61 in a direction away from the exhaust fan 7. Therefore, when the fresh air fan 6 rotates, the competition of the fresh air blades 62 for airflow within the exhaust duct VO2 can be reduced.

[0241] In some embodiments of this application, the exhaust fan 7 is a single-suction centrifugal fan with unilateral air intake, and the exhaust blades 72 extend along the axial direction of the exhaust wheel 71 in a direction away from the fresh air fan 6. Therefore, when the exhaust fan 7 rotates, the exhaust blades 72 can reduce the competition for airflow within the fresh air duct VO1.

[0242] In some embodiments of this application, such as Figures 5-6 , Figure 14 As shown, the outer diameter of the fresh air fan 6 is larger than the outer diameter of the heat exchange fan 41, thereby ensuring that the fresh air volume is not too small. For example, in one embodiment, the outer diameter of the fresh air fan 6 is 137 mm, and the outer diameter of the heat exchange fan 41 is 94 mm.

[0243] In some embodiments of this application, such as Figures 5-6 , Figure 14 As shown, the outer diameter of the exhaust fan 7 is larger than the outer diameter of the heat exchange fan 41, thereby ensuring that the exhaust volume is not too small. For example, in one embodiment, the outer diameter of the exhaust fan 7 is equal to the outer diameter of the fresh air fan 6, both the outer diameter of the fresh air fan 6 and the outer diameter of the exhaust fan 7 are 137 mm, and the outer diameter of the heat exchange fan 41 is 94 mm.

[0244] In some embodiments of this application, such as Figures 8-9 , Figure 11 As shown, the exhaust outlet 902 of the exhaust duct V02 and the first fresh air outlet 802 of the fresh air duct V01 are offset on the outer periphery of the bidirectional ventilation component. This facilitates the connection of the exhaust outlet pipe to the exhaust outlet 902 and the fresh air inlet pipe to the fresh air inlet 801, avoiding interference caused by the two pipe joints being too close. On the other hand, it makes it easy to ensure that the flow paths of fresh air and exhaust air within the bidirectional ventilation component do not cross.

[0245] In some embodiments, the exhaust outlet 902 is oriented downwards, while the first fresh air outlet 802 is oriented forwards. This not only allows the pipe connections of the exhaust outlet 902 and the first fresh air outlet 802 to be staggered, but also facilitates the connection of the exhaust outlet 902 to the exhaust duct by pointing downwards, making it easier to place the exhaust duct against a wall. The forward-facing orientation of the first fresh air outlet 802 allows for the forward delivery of fresh air, resulting in a wider fresh air delivery range.

[0246] For example, the exhaust outlet 902 is located on the rear side of the exhaust volute half 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 half 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.

[0247] 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.

[0248] In some embodiments, the first fresh air outlet 802 is tilted forward while its air outlet direction is downward. This allows the wall-mounted air conditioner 10000 to expel fresh air forward, ensuring that the fresh air can reach the ground and travel a sufficient distance.

[0249] For example, the first fresh air outlet 802 is located in front of the exhaust air outlet 902. This makes the first fresh air outlet 802 and the exhaust air outlet 902 more offset, which is more conducive to reducing mutual interference and facilitating pipe connection.

[0250] In some embodiments, the fresh air inlet 801 is located below the body 1000 in the height direction, and the first 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 first fresh air outlet 802, the exhaust outlet 902, and the connecting pipe compact, which helps to reduce the overall size.

[0251] In some embodiments of this application, such as Figures 4-6 , Figure 14 As shown, the wall-mounted air conditioner 10000 also includes: a first bearing housing 131 and a first bearing 132. The first bearing housing 131 is disposed on the base 3, and the first bearing 132 is disposed inside the first bearing housing 131, and the first bearing 132 is used to support the drive shaft 43.

[0252] The common motor 42, heat exchange fan 41, drive shaft 43, exhaust fan 7 and fresh air fan 6 constitute a one-shaft three-fan structure. By setting the first bearing 132, it is beneficial to improve the stability of the one-shaft three-fan structure and reduce the amount of runout of the one-shaft three-fan structure.

[0253] In some embodiments of this application, such as Figure 14As shown, the wall-mounted air conditioner 10000 also includes a second bearing 133, which is disposed between the exhaust fan 7 and the fresh air fan 6, and serves to support the drive shaft 43. By providing the second bearing 133, the stability of the one-shaft, three-fan structure can be further improved, and the amount of vibration in the structure can be reduced. In particular, since the exhaust fan 7 and the fresh air fan 6 are far from the common motor 42, when the rotation of the output shaft 421 of the common motor 42 is transmitted to the exhaust fan 7 and the fresh air fan 6, the exhaust fan 7 and the fresh air fan 6 will experience significant vibration, affecting airflow and generating noise. To solve this problem, a second bearing 133 is provided between the exhaust fan 7 and the fresh air fan 6 to support the drive shaft 43. The second bearing 133 can significantly reduce the amount of vibration in the exhaust fan 7 and the fresh air fan 6, alleviating the vibration problem. The second bearing 133 can also correct the concentricity of the exhaust fan 7 and the fresh air fan 6.

[0254] A first bearing half-hole is provided on the first volute half 81, and a second bearing half-hole is provided on the fresh air volute part 121. The first bearing half-hole and the second bearing half-hole form a second bearing hole. The outer ring of the second bearing 133 is installed in the second bearing hole, and the inner ring of the second bearing 133 is installed on the drive shaft 43.

[0255] Since the exhaust fan 7 rotates inside the exhaust volute and the fresh air fan 6 rotates inside the fresh air volute, if the dynamic balance of the fans is poor, the gap between the fans and their corresponding volutes will be constantly changing slightly. This change will cause airflow disturbance, affecting airflow and noise. Fixing the second bearing 133 to the first volute half 81 and the fresh air volute part 121 is equivalent to fixing the gap between the fans and their corresponding volutes, which can effectively solve the problem of wind noise caused by the dynamic imbalance of the exhaust fan 7 and the fresh air fan 6.

[0256] In some embodiments, refer to Figures 2-4 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.

[0257] The wall-mounted air conditioner 10000 also includes a heat exchanger outlet pipe, which connects to the end of the indoor heat exchanger 2 facing the common motor 42. (See reference...) Figure 3 The end of the indoor heat exchanger 2 facing the common motor 42 is the outlet pipe end 21, and the heat exchanger outlet pipe is connected to the outlet pipe end 21.

[0258] In particular, along the length of the main body 1000, the common motor 42 at least partially overlaps with the heat exchanger outlet pipe. This saves the total length of the common motor 42 and the heat exchanger outlet pipe along the length of the main body 1000.

[0259] In some embodiments of this application, the exhaust air inlet 901 is axially oriented towards the indoor heat exchanger 2, and a gap is provided between the end plate 31 and the volute assembly. Specifically, a gap is provided between the end plate 31 and the exhaust volute half 9, and between the end plate 31 and the common volute 12. This gap 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, thereby entering the exhaust duct VO2.

[0260] The exhaust air inlet 901 is located near the end plate 31, and air circulation can be achieved by utilizing the gap between the end plate 31 and the volute assembly, without the need for a separate air intake gap. The exhaust fan 7 is a side-intake centrifugal fan. This type of air intake requires a certain air intake gap on the intake side to reduce air intake resistance. By placing the exhaust fan 7 on the side close to the heat exchange fan 41, air intake can be achieved by utilizing the gap between the end plate 31 and the volute assembly.

[0261] In some embodiments of this application, the outer diameter of the fresh air fan 6 is D1, and the thickness of the main body 1000 in the front-back direction is T, where D1:T≥1:1.7 and D1:T≤1:1.3.

[0262] In some embodiments, the ratio of the outer diameter of the fresh air fan 6 to the thickness of the main body 1000 is greater than or equal to 1:1.7, i.e., D1:T ≥ 1:1.7. When D1:T < 1:1.7, the outer diameter of the fresh air fan 6 is too small, resulting in insufficient fresh air volume and poor effect in introducing fresh air into the room. By setting D1:T ≥ 1:1.7, the outer diameter of the fresh air fan 6 is not too small, the fresh air volume is not too small, and the effect of introducing fresh air into the room is better.

[0263] In some embodiments, the ratio of the outer diameter of the fresh air fan 6 to the thickness of the main body 1000 is less than or equal to 1:1.3, i.e., D1:T ≤ 1:1.3. When D1:T > 1:1.3, the outer diameter of the fresh air fan 6 is too large, which will encroach on the space of the logarithmic spiral of the fresh air volute, resulting in an incomplete logarithmic spiral of the fresh air volute or an inability to be designed according to the maximum fresh air volume, leading to insufficient fresh air volume and poor effect of introducing fresh air into the room. In the front-rear direction of the main body 1000, the outer diameter of the fresh air fan 6 plus the limit dimension of a reasonable logarithmic spiral of the fresh air volute is equal to the thickness of the main body 1000. By setting D1:T ≤ 1:1.3, the outer diameter of the fresh air fan 6 is not too large, and it does not excessively encroach on the space of the logarithmic spiral of the fresh air volute. The logarithmic spiral of the fresh air volute is complete and can be designed according to the maximum fresh air volume, thereby ensuring that the fresh air volume is not too small and the effect of introducing fresh air into the room is better.

[0264] For example, D1:T can be 1:1.3, 1:1.4, 1:1.5, 1:1.6, 1:1.7, etc., or other values ​​between 1:1.7 and 1:1.3, which will not be listed here.

[0265] In some embodiments, the ratio of the outer diameter of the fresh air fan 6 to the thickness of the main body 1000 is equal to 1:1.5, i.e., D1:T = 1:1.5. The outer diameter of the fresh air fan 6 is not too small, ensuring a sufficient fresh air volume and a good effect in introducing fresh air into the room. Conversely, the outer diameter of the fresh air fan 6 is not too large, so as not to excessively encroach on the space of the logarithmic spiral of the fresh air volute. The logarithmic spiral of the fresh air volute is complete and can be designed according to the maximum fresh air volume, thus ensuring that the fresh air volume is not too small and the effect in introducing fresh air into the room is good.

[0266] In some embodiments of this application, such as Figures 1-2 As shown, the wall-mounted air conditioner 10000 also includes a panel 15, one end of which is pivotally connected to the housing 1, for example, the upper end of the panel 15 is pivotally connected to the housing 1. The panel 15 is rotatable relative to the housing 1. When the panel 15 is rotated to the open position, the purification component 11 is exposed, and the user can remove the filter screen in the purification component 11. When the panel 15 is rotated to the closed position, the purification component 11 is covered. At this time, the panel 15 is an exterior component, and the wall-mounted air conditioner 10000 has a relatively clean appearance.

[0267] In some embodiments of this application, such as Figures 1-2 As shown, the wall-mounted air conditioner 10000 also includes a baffle plate 16, the left and right ends of which are pivotally connected to the casing 1. The baffle plate 16 is rotatable relative to the casing 1. When the baffle plate 16 is rotated to the open position, the heat exchange air outlet 102 is exposed, facilitating airflow from the heat exchange air outlet 102. When the baffle plate 16 is rotated to the closed position, the heat exchange air outlet 102 is blocked, preventing debris, flying insects, etc., from entering the interior of the wall-mounted air conditioner 10000 when it is not in operation.

[0268] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0269] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0270] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0271] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A wall-mounted air conditioner (10000), comprising: Body (1000), said body (1000) includes: The housing (1) has an accommodating cavity (V1) inside, and a heat exchange air inlet (101) and a heat exchange air outlet (102) are formed on the housing (1). The base (3) is located in the accommodating cavity (V1) and a spiral tongue air duct is formed thereon; A heat exchange fan (41) is installed inside the volute air duct; Its characteristic is that it further includes: A common motor (42) is disposed in the accommodating cavity (V1) and located at one end of the heat exchange fan (41) along its length. Fresh air fan (6), the fresh air fan (6) is a centrifugal fan with axial air intake and radial air outlet, the fresh air fan (6) is located at the other end of the length direction of the heat exchange fan (41); The exhaust fan (7) is a centrifugal fan with axial air intake and radial air exhaust; The exhaust fan (7) is located between the fresh air fan (6) and the heat exchange fan (41), and the common motor (42) drives the heat exchange fan (41), the exhaust fan (7) and the fresh air fan (6) to rotate synchronously when in operation; A volute assembly is provided, wherein a fresh air duct (V01) and an exhaust air duct (V02) are formed within the volute assembly, and a fresh air inlet (801), a fresh air outlet, an exhaust air inlet (901), and an exhaust air outlet (902) are formed on the volute assembly. The fresh air inlet (801) and the fresh air outlet are both connected to the fresh air duct (V01), and the exhaust air inlet (901) and the exhaust air outlet (902) are both connected to the exhaust air duct (V02). The fresh air fan (6) is installed in the fresh air duct (V01). The rotation of the fresh air fan (6) can allow outdoor air to enter the fresh air duct (V01) from the fresh air inlet (801) and allow outdoor air entering the fresh air duct (V01) to enter the room from the fresh air outlet. The exhaust fan (7) is installed in the exhaust duct (V02). The rotation of the exhaust fan (7) can allow indoor air to enter the exhaust duct (V02) from the exhaust air inlet (901) and allow the indoor air entering the exhaust duct (V02) to be discharged to the outside from the exhaust air outlet (902).

2. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The common motor (42) includes an output shaft (421), and the heat exchange fan (41) is fixedly connected to the output shaft (421); The wall-mounted air conditioner (10000) also includes: A drive shaft (43) is adapted to be fixedly connected to the heat exchange fan (41), the exhaust fan (7) and the fresh air fan (6).

3. The wall-mounted air conditioner (10000) according to claim 2, characterized in that, The drive shaft (43) is adapted to be integrated with one of the heat exchange fan (41), the exhaust fan (7) and the fresh air fan (6), and the other two of the heat exchange fan (41), the exhaust fan (7) and the fresh air fan (6) are fixedly mounted on the drive shaft (43).

4. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The fresh air outlet includes a first fresh air outlet (802) and a second fresh air outlet (808), both of which are connected to the fresh air duct (V01).

5. The wall-mounted air conditioner (10000) according to claim 4, characterized in that, The first fresh air outlet (802) is located below the main body (1000) to guide fresh air forward and downward into the room; The second fresh air outlet (808) is located at the top of the main body (1000) to guide fresh air upwards into the room.

6. The wall-mounted air conditioner (10000) according to any one of claims 1-5, characterized in that, The volute assembly includes: First volute half (81); The exhaust volute half (9) is located on the side of the first volute half (81) facing the common motor (42); A common volute (12), the common volute (12) comprising: Fresh air volute (121), the fresh air volute (121) is detachably connected to the first volute half (81), and the fresh air volute (121) and the first volute half (81) form part of the fresh air duct (V01); The exhaust volute (122) is detachably connected to the exhaust volute half (9), and the exhaust duct (V02) is formed inside the exhaust volute (122) and the exhaust volute half (9).

7. The wall-mounted air conditioner (10000) according to claim 6, characterized in that, The exhaust volute half (9) and the exhaust volute part (122) enclose the exhaust air inlet (901), and the exhaust volute half (9) and the first volute half (81) enclose the exhaust air outlet (902).

8. The wall-mounted air conditioner (10000) according to claim 6, characterized in that, The volute assembly also includes: The second volute (82) is located on the side of the first volute half (81) away from the heat exchange fan (41), and the second volute (82) is detachably connected to the first volute half (81).

9. The wall-mounted air conditioner (10000) according to claim 8, characterized in that, The second volute (82) includes: The second volute half (821) is located on the side of the first volute half (81) away from the heat exchange fan (41), and the second volute half (821) is detachably connected to the first volute half (81). The second volute half (821) is provided with an axial ventilation port (8211). A volute cavity (V011) is formed between the second volute half (821), the fresh air volute part (121), and the first volute half (81). The fresh air fan (6) is located in the volute cavity (V011).

10. The wall-mounted air conditioner (10000) according to claim 9, characterized in that, The second volute (82) also includes: The fan cover (822) is located on the side of the second volute half (821) away from the heat exchange fan (41), and the fan cover (822) is detachably connected to the second volute half (821). The cavity enclosed by the fan cover (822) and the second volute half (821) is the fresh air cavity (V012).

11. The wall-mounted air conditioner (10000) according to claim 10, characterized in that, The fresh air inlet (801) is formed on the fan cover (822), the second volute half (821) and the first volute half (81) surround the first fresh air outlet (802), and the second volute half (821) and the fresh air volute part (121) surround the second fresh air outlet (808).

12. The wall-mounted air conditioner (10000) according to claim 10, characterized in that, Also includes: Purification component (11) is installed in the fresh air cavity (V012). The purification component (11) is connected to the second volute (82). The fresh air fan (6) rotates to allow outdoor air to enter the fresh air cavity (V012) from the fresh air inlet (801), and to allow the outdoor air entering the fresh air cavity (V012) to be blown through the purification component (11), then into the volute cavity (V011), and then into the room from the fresh air outlet.

13. The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The purification component (11) includes a filter screen that covers the axial vent (8211).

14. The wall-mounted air conditioner (10000) according to claim 13, characterized in that, The filter screen is a square mesh, and the side length of the filter screen is greater than the diameter of the axial vent (8211).

15. The wall-mounted air conditioner (10000) according to claim 12, characterized in that, A portion of the fresh air cavity (V012) forms an empty cavity (V0121), which is located on the side of the purification unit (11) away from the fresh air fan (6), and the fresh air inlet (801) communicates with the cavity (V0121).

16. The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The fan cover (822) is also provided with an enclosed installation port (803), and the purification component (11) can be detachably assembled into the fresh air cavity (V012) through the installation port (803).

17. The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The second volute (82) has a purification air inlet (804) for connecting to the room. The rotation of the fresh air fan (6) can cause indoor air to enter the fresh air cavity (V012) from the purification air inlet (804) and be purified by the purification component (11). It can also cause the indoor air entering the fresh air cavity (V012) to be blown through the purification component (11), then enter the volute cavity (V011) and enter the room from the fresh air outlet.

18. The wall-mounted air conditioner (10000) according to claim 17, characterized in that, The purification air inlet (804) is located at the bottom of the second volute (82) and faces downward.

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

20. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The fresh air fan (6) includes: New air wheel (61); and Fresh air blade (62), the fresh air blade (62) is located on the outer edge of the fresh air wheel (61), and the fresh air blade (62) extends along the axial direction of the fresh air wheel (61), the total thickness of the fresh air wheel (61) and the fresh air blade (62) in the axial direction is h1; The exhaust fan (7) includes: Exhaust fan wheel (71); and Exhaust blade (72), the exhaust blade (72) is located on the outer edge of the exhaust wheel (71), and the exhaust blade (72) extends along the axial direction of the exhaust wheel (71), the total thickness of the exhaust wheel (71) and the exhaust blade (72) in the axial direction is h2; Where h2 < h1.

21. The wall-mounted air conditioner (10000) according to claim 20, characterized in that, The fresh air blade (62) extends away from the exhaust fan (7) along the axial direction of the fresh air wheel (61); The exhaust blades (72) extend along the axial direction of the exhaust wheel (71) in a direction away from the fresh air fan (6).

22. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The outer diameter of the fresh air fan (6) is larger than the outer diameter of the heat exchange fan (41).

23. The wall-mounted air conditioner (10000) according to claim 2, characterized in that, Also includes: A first bearing housing (131) is disposed on the base (3); A first bearing (132) is disposed within a first bearing housing (131) and is used to support the drive shaft (43).

24. The wall-mounted air conditioner (10000) according to claim 2, characterized in that, Also includes: The second bearing (133) is disposed between the exhaust fan (7) and the fresh air fan (6) and is used to support the drive shaft (43).

25. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, Also includes: Indoor heat exchanger (2), wherein the indoor heat exchanger (2) is disposed in the accommodating cavity (V1); End plate (31), the end plate (31) is located at one end of the indoor heat exchanger (2) near the exhaust fan (7), and the end plate (31) 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); Heat exchanger outlet pipe, the heat exchanger outlet pipe being connected to one end of the indoor heat exchanger (2) facing the common motor (42); In the length direction of the main body (1000), the common motor (42) overlaps at least partially with the heat exchanger outlet pipe.

26. The wall-mounted air conditioner (10000) according to claim 25, characterized in that, The exhaust air inlet (901) is axially oriented toward the indoor heat exchanger (2), and a gap is provided between the end plate (31) and the volute assembly. The gap is used to form a channel for indoor air to flow from the heat exchange air inlet (101) to the exhaust air inlet (901).

27. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, The outer diameter of the fresh air fan (6) is D1, and the thickness of the main body (1000) in the front-back direction is T, where D1:T≥1:1.7 and D1:T≤1:1.3.

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