Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner. The wall-mounted air conditioner comprises a main body, the main body comprises a machine shell and a base, the wall-mounted air conditioner further comprises a heat exchange fan, a public motor, a fresh air fan, an exhaust fan and a volute assembly, the public motor is located at one end of the heat exchange fan in the length direction, and the fresh air fan is located at the other end of the heat exchange fan in the length direction; the exhaust fan is located between the fresh air fan and the heat exchange fan, and 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, the overall size can be reduced, the number of motors is reduced, and cost is saved.

Description

[0001] Cross-reference 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. Utility Model Content

[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 further comprises an exhaust fan, which is an axial-inlet and radial-outlet centrifugal fan.

[0012] The exhaust fan is located between the fresh air fan and the heat exchange fan, and the common motor drives the heat exchange fan, the exhaust fan and the fresh air fan to rotate synchronously in the working state.

[0013] The wall-mounted air conditioner further comprises a volute assembly, which forms a fresh air duct and an exhaust air duct, and has a fresh air inlet, a fresh air outlet, an exhaust air inlet and an exhaust air outlet.

[0014] The fresh air fan is arranged in the fresh air duct, and rotating of the fresh air fan can make outdoor air enter the fresh air duct from the fresh air inlet and enter indoor from the fresh air outlet.

[0015] The exhaust fan is arranged in the exhaust air duct, and rotating of the exhaust fan can make indoor air enter the exhaust air duct from the exhaust air inlet and be exhausted to outdoor from the exhaust air outlet.

[0016] 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.

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

[0018] The wall-mounted air conditioner further comprises a transmission shaft, which is adapted to be fixedly connected with the heat exchange fan, the exhaust fan and the fresh air fan.

[0019] According to some embodiments of the present application, the transmission shaft is adapted to be formed in one piece 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 installed on the transmission shaft.

[0020] According to some embodiments of the present application, the fresh air outlet comprises a first fresh air outlet and a second fresh air outlet, and the first fresh air outlet and the second fresh air outlet are both communicated with the fresh air duct.

[0021] According to some embodiments of the present application, the first fresh air outlet is located below the main body to direct the fresh air to flow forward and downward to the indoor space.

[0022] The second fresh air outlet is located on the top of the main body to direct the fresh air to flow upward to the indoor space.

[0023] According to some embodiments of the present application, the volute assembly comprises a first volute half;

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

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

[0026] According to some embodiments of the present application, the exhaust volute half and the exhaust volute part enclose the exhaust air inlet, and the exhaust volute half and the first volute half enclose the exhaust air outlet.

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

[0028] According to some embodiments of the present application, the second volute comprises 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 with the first volute half, an axial air vent is arranged on the second volute half, 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 the present application, the second volute further comprises 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 with the second volute half, and a cavity enclosed by the fan cover and the second volute half is a fresh air cavity.

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

[0031] According to some embodiments of the present application, the wall-mounted air conditioner further comprises a purifying member, which is installed in the fresh air cavity and connected to the second volute, and the outdoor air fan rotates to make outdoor air enter the fresh air cavity from the fresh air inlet, pass through the purifying member, enter the volute cavity and then enter the indoor air from the fresh air outlet.

[0032] According to some embodiments of the present application, the purifying member comprises a filter screen, which covers the axial air vent.

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

[0034] According to some embodiments of the present application, a part of the fresh air cavity constitutes an empty cavity, which is located on the side of the purifying member away from the outdoor air fan, and the fresh air inlet is connected to the empty cavity.

[0035] According to some embodiments of the present application, the fan cover is further provided with a mounting port, and the purifying member is detachably assembled in the fresh air cavity through the mounting port.

[0036] According to some embodiments of the present application, the second volute is provided with a purifying air inlet connected to the indoor air, and the outdoor air fan rotates to make indoor air enter the fresh air cavity from the purifying air inlet, pass through the purifying member, enter the volute cavity and then enter the indoor air from the fresh air outlet.

[0037] According to some embodiments of the present application, the purifying air inlet is located at the bottom of the second volute and is downwardly arranged.

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

[0039] According to some embodiments of the present application, the outdoor air fan comprises an outdoor air disc and outdoor air blades, the outdoor air blades are located at the outer edge of the outdoor air disc and extend along the axial direction of the outdoor air disc, and the total thickness of the outdoor air disc and the outdoor air blades in the axial direction is h1.

[0040] The exhaust air fan comprises an exhaust air disc and exhaust air blades, the exhaust air blades are located at the outer edge of the exhaust air disc and extend along the axial direction of the exhaust air disc, and the total thickness of the exhaust air disc and the exhaust air blades in the axial direction is h2; wherein h2

[0041] According to some embodiments of the present application, the fresh air blade extends along the axial direction of the fresh air wheel disc towards the direction away from the exhaust fan.

[0042] According to some embodiments of the present application, the exhaust blade extends along the axial direction of the exhaust wheel disc towards the direction away from the fresh air fan.

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

[0044] According to some embodiments of the present application, the wall-mounted air conditioner further comprises a first bearing seat and a first bearing, the first bearing seat is arranged on the base, and the first bearing is arranged in the first bearing seat and used to support the transmission shaft.

[0045] According to some embodiments of the present application, the wall-mounted air conditioner further comprises a second bearing, the second bearing is arranged between the exhaust fan and the fresh air fan and used to support the transmission shaft.

[0046] According to some embodiments of the present application, the wall-mounted air conditioner further comprises an indoor heat exchanger, the indoor heat exchanger is arranged in the accommodating cavity.

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

[0048] The wall-mounted air conditioner further comprises a heat exchanger outlet pipe, the heat exchanger outlet pipe is connected to one end of the indoor heat exchanger towards the common motor.

[0049] In the length direction of the main body, the common motor and the heat exchanger outlet pipe at least partially overlap.

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

[0051] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 is a perspective view of a wall-mounted air conditioner according to embodiments of the present application;

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

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

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

[0056] Figure 5 is a further perspective view of another direction inside the main body according to some embodiments;

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

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

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

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

[0061] Figure 10 is Figure 9 is a sectional view along the direction A-A;

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

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

[0064] Figure 13 is a schematic view of the exhaust fan according to some embodiments;

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

[0066] Figure 15 is a schematic view of the fresh air fan in the fresh air volute part, the first volute half.

[0067] Reference signs:

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

[0069] heat exchange air inlet 101, heat exchange air outlet 102, first communication air duct V04, lead pipe avoiding opening 104,

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

[0071] Heat exchanger fan 41, common motor 42, output shaft 421, transmission shaft 43,

[0072] Fresh air fan 6, fresh air wheel disc 61, fresh air blade 62, exhaust fan 7, exhaust wheel disc 71, exhaust blade 72,

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

[0074] First volute half 81, first baffle 811, second volute 82, second volute half 821, axial air vent 8211, fan cover 822,

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

[0076] Purification part 11,

[0077] Common volute 12, fresh air volute part 121, second baffle 1211, exhaust volute part 122,

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

[0079] Panel 15, wind shield 16. DETAILED DESCRIPTION

[0080] Some embodiments of the present application will be described in detail with reference to the drawings, which are shown schematically. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments provided by the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0081] Unless the context clearly requires otherwise, throughout the description and the claims, the term "comprise," and variations thereof (e.g., "comprises" and "comprising"), will be construed both to cover the containing feature or features and additional feature or features not described. In describing some embodiments, the use of "connect" or "connected" can be used. The term "connect" shall be construed broadly to include fixed connections, detachable connections, or integrally formed, and can be direct connections or indirect connections via intervening media. The embodiments disclosed herein are not necessarily limited to the content herein.

[0082] The terms "first", "second", and the like, do not denote any quantity or order but are used as labels for distinguishing between different elements. Thus, the terms "first", "second", and the like, can be used interchangeably with "one", "another", and / or "at least one". The terms "first", "second", and the like, are used to distinguish between two or more elements, and thus, can be used interchangeably with "one", "another", and / or "at least one". In the description of embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specified.

[0083] In describing some embodiments, the use of "connect" or "connected" can be used. The term "connect" shall be construed broadly to include fixed connections, detachable connections, or integrally formed, and can be direct connections or indirect connections via intervening media. The embodiments disclosed herein are not necessarily limited to the content herein.

[0084] "A, B, and C at least one of" has the same meaning as "at least one of A, B, or C", and includes the combinations of A, B, and C: only A, only B, only C, A and B, A and C, B and C, and A and B and C.

[0085] The use of "adapted to" or "configured to" herein means open and inclusive language that is used to indicate that the device or apparatus is adapted to perform a task or step, or is configured to perform a task or step, but does not exclude the device or apparatus from performing additional tasks or steps.

[0086] As used herein, "about," "approximately," or "around" includes the value recited and the average value within an acceptable range of deviation, as determined by one of ordinary skill in the art considering the measurement in question and the error intended to be introduced to the particular quantity being measured (i.e., the limitations of the measurement system).

[0087] As used herein, "parallel," "perpendicular," "equal" includes the recited condition and conditions approximating the recited condition, the range of approximation being within an acceptable range of deviation, as determined by one of ordinary skill in the art considering the measurement in question and the error intended to be introduced to the particular quantity being measured (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and near-parallel, where the acceptable range of deviation for near-parallel can be, for example, within 5°; "perpendicular" includes absolute perpendicular and near-perpendicular, where the acceptable range of deviation for near-perpendicular can also be, for example, within 5°. "Equal" includes absolute equality and near-equality, where the acceptable range of deviation for near-equality can be, for example, a difference between the two that is less than or equal to 5% of either.

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

[0089] Generally, the air conditioner is a split-type air conditioner, including an indoor unit and an outdoor unit, the indoor unit and the outdoor unit are connected by a pipeline to transmit 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, the outdoor heat exchanger, the throttling device, and the indoor heat exchanger 2 connected in sequence form a refrigerant circuit, the refrigerant circulates in the refrigerant circuit, and the outdoor heat exchanger and the indoor heat exchanger 2 respectively exchange heat with air to realize the cooling mode or the heating mode of the air conditioner.

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

[0092] The outdoor heat exchanger is configured to exchange heat between outdoor air and refrigerant transmitted in the outdoor heat exchanger, for example, the outdoor heat exchanger works as a condenser in the cooling mode of the air conditioner, so that the refrigerant compressed by the compressor releases heat to the outdoor air through the outdoor heat exchanger to condense. The outdoor heat exchanger works as an evaporator in the heating mode of the air conditioner, so that the refrigerant after decompression absorbs the heat of the outdoor air through the outdoor heat exchanger to evaporate.

[0093] In some embodiments, the outdoor heat exchanger can include heat exchange fins to expand the contact area between the outdoor air and the refrigerant transferred 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 suck the outdoor air into the outdoor unit and send the outdoor air after heat exchange with the outdoor heat exchanger to the outside, and the outdoor fan provides power for the flow of the outdoor air.

[0095] The throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger 2, and is used to adjust the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger 2, so as to adjust the flow rate of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger 2. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger 2 will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger 2. The throttling device can be a throttling pipe, an electronic valve, etc. When the throttling device is an electronic valve, the opening degree of the throttling device is adjustable to adjust the flow rate and pressure of the refrigerant flowing through the throttling device.

[0096] In some schemes, the air conditioner can include a four-way valve connected in the refrigerant circuit, and the four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit to make the air conditioner perform a cooling mode or a heating mode.

[0097] The indoor heat exchanger 2 is configured to exchange heat between the indoor air and the refrigerant transferred in the indoor heat exchanger 2. In some embodiments, the indoor heat exchanger 2 can include heat exchange fins to expand the contact area between the indoor air and the refrigerant transferred 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 suck the indoor air into the indoor unit and send the indoor air after heat exchange with the indoor heat exchanger 2 to the indoor, and the heat exchange fan 41 provides power for the flow of the indoor air.

[0099] The air conditioner can include a control device mainly used to control the working frequency of the compressor, the opening degree of the throttling device, and some control devices can also control the rotating speed of the outdoor fan and the rotating speed of the heat exchange fan 41, etc. The control device is connected with the compressor, the throttling device, the motor driving the outdoor fan to rotate, and the common motor 42 driving the heat exchange fan 41 to rotate through data lines 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 this utility model 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 the embodiments of the present application comprises a main body 1000, the main body 1000 comprises a casing 1, an accommodating cavity V1 is formed in the casing 1, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the casing 1. The casing 1 can play a protective role and constitute the overall appearance structure of the wall-mounted air conditioner 10000.

[0108] Generally, the casing 1 is a long strip-shaped casing, and the length direction of the casing 1 is arranged along the horizontal direction, that is, the casing 1 is installed on the wall along the transverse direction. In actual products, in order to discharge condensate water, the casing 1 in some embodiments is installed on the wall along the transverse direction and forms a small angle with the horizontal plane.

[0109] Referring to Figure 3 and Figure 4 , the main body 1000 further comprises an indoor heat exchanger 2 arranged in the accommodating cavity V1. As described above, the indoor heat exchanger 2 is a ring in the refrigerant circuit, the inside of the indoor heat exchanger 2 circulates refrigerant, and is used for refrigerating or heating air circulating on the surface of the indoor heat exchanger 2. In the wall-mounted air conditioner 10000, the indoor heat exchanger 2 is generally arranged along the length direction 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-shaped structure extending along the length direction.

[0111] Referring to Figures 3-5 , the main body 1000 further comprises a base 3 arranged in the accommodating cavity V1. The base 3 is a mounting and supporting structure inside the main body 1000, and the indoor heat exchanger 2 can be mounted on the base 3. For example, a volute tongue air duct is formed on the base 3, and indoor air entering the casing 1 is guided in the flow direction through the volute tongue air duct, so that the indoor air can flow through the indoor heat exchanger 2 with relatively small resistance.

[0112] Referring to Figures 4-5 , the wall-mounted air conditioner 10000 further comprises a heat exchange fan 41 arranged in the volute tongue air duct. When the heat exchange fan 41 rotates, air can be exchanged between the inside of 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 outlet speed of the cross-flow fan is uniformly distributed along the axial direction of the cross-flow fan, which is beneficial to increase the air supply distance and air supply range. Moreover, in the case of using the cross-flow fan and arranging the cross-flow fan along the length direction of the heat exchange fan 41, the driven air flow can flow through the entire indoor heat exchanger 2, thereby balancing the heat exchange efficiency of each position of the indoor heat exchanger 2.

[0114] By setting the heat exchange air inlet 101 and the heat exchange air outlet 102 in the casing 1, the heat exchange fan 41 can suck indoor air from the heat exchange air inlet 101 into the casing 1 when operating. After the indoor air exchanges heat with the indoor heat exchanger 2, the heat exchanged air is sent to the indoor space from the heat exchange air outlet 102.

[0115] Thus, the adjustment of the indoor environment temperature can be realized. The indoor heat exchanger 2 can act as an evaporator to provide a refrigeration airflow to the indoor space from the heat exchange air outlet 102, or the indoor heat exchanger 2 can act as a condenser to provide a heating airflow to the indoor space from the heat exchange air 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 the air can be sucked from the top and blown from the bottom.

[0117] For example, the height direction of the main body 1000 is the up-down direction.

[0118] It can be understood that the main body 1000 is usually installed on a wall, and in order to avoid interfering with people's daily life, the main body 1000 is usually hung at a high position. By setting the main body 1000 to blow heat exchange air from the bottom, the blown heat exchange air is less likely to be blocked by the roof or the ground, so that the heat exchange air consumes less resistance during blowing and has a wide blowing range, so that the heat exchange air can flow to the entire indoor space as soon as possible, improving the heat exchange efficiency.

[0119] Referring to Figure 1 and Figure 2 , the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the heat exchange air inlet 101 can suck air from the top, so that air is not sucked from the heat exchange air outlet 102, and the heat exchange air blown from the heat exchange air outlet 102 is not directly sucked into the heat exchange air inlet 101, reducing the heat exchange air idling without participating in the indoor heat exchange process.

[0120] In some embodiments, the heat exchange air inlet 101 is located at the top of the casing 1, i.e., in an area that cannot be seen by the user, hiding the heat exchange air inlet 101, which can improve the appearance of the wall-mounted air conditioner 10000.

[0121] In some embodiments, the heat exchange air outlet 102 is located in front of the casing 1, i.e., the heat exchange air outlet 102 blows air to the front side of the main body 1000.

[0122] It can be understood that the side of the main body 1000 connected to the wall is usually called the back or the rear side, and the side opposite to the rear side is called the front side, so when the heat exchange air outlet 102 is located in front of the casing 1, the air is blown away from the wall, and the blowing resistance is small and the blowing 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] The centrifugal fan itself has the features of compact structure, large air volume, low noise, and the noise of the fan decreases significantly when the rotating speed decreases, so the fresh air fan 6 and the exhaust fan 7 select a smaller size centrifugal fan to meet the demand of large air volume. The centrifugal fan has small vibration noise and is not easy to resonate with the indoor heat exchanger 2, which is beneficial to reduce the overall vibration and noise of the wall-mounted air conditioner 10000.

[0131] The fresh air fan 6 and the exhaust fan 7 both adopt centrifugal fans, and the air directions of the fresh air fan 6 and the exhaust fan 7 can be reasonably arranged. For example, the fresh air fan 6 takes in air along the axial direction and discharges air along the radial direction, the exhaust fan 7 takes in air along the axial direction and discharges air along the radial direction, the fresh air fan 6 and the exhaust fan 7 take in air from two ends away from each other, and then the fresh air and the exhaust air are driven to discharge air along the radial direction. The flow paths of the fresh air and the exhaust air do not need to overlap in the axial direction, and the paths do not need to intersect. This helps to reduce the design of the avoidance corner of the fresh air and exhaust air paths, reduce air resistance and energy consumption, ensure air volume, and reduce noise.

[0132] In some embodiments, with reference 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 the indoor air entering the casing 1 from the heat exchange air inlet 101 to flow through the indoor heat exchanger 2. The exhaust fan 7 is close to the heat exchange fan 41, the inlet end of the exhaust fan 7 is close to the inlet end of the heat exchange fan 41, and the exhaust fan 7 can suck air from the inlet end of the heat exchange fan 41, that is, when the exhaust fan 7 rotates, it can suck the indoor air entering the casing 1 from the heat exchange air inlet 101 to the exhaust fan 7, so that it is not necessary to additionally open a hole in the casing 1 to independently introduce air to the exhaust fan 7, thereby reducing the number of openings in the casing 1, simplifying the machining and manufacturing process of the casing 1, and increasing the aesthetic degree. In addition, the heat exchange air inlet 101 is generally large, so the amount of indoor air sucked into the casing 1 through the heat exchange air inlet 101 is large, so the air volume reaching the exhaust fan 7 is also large, which speeds up the exhaust efficiency.

[0133] In addition, in some embodiments, the fresh air fan 6 is arranged on the side of the exhaust fan 7 away from the indoor heat exchanger 2. When there is condensate water on one side of the indoor heat exchanger 2, the condensate water is not easy 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, the fresh air fan 6 and the exhaust air fan 7 are both centrifugal fans, and the heat exchange fan 41, the exhaust air fan 7 and the fresh air fan 6 are driven by the same motor, which not only saves the number of motors, reduces the overall size and saves costs, but also keeps 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, and the stacking of the fresh air fan 6 and the exhaust air fan 7 can reduce the overall axial size 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 air fan 7 and the fresh air fan 6 are driven by the same motor, the three fans keep synchronous rotation, and the fresh air fan 6 and the exhaust air fan 7 do not need to be separated by a large gap, and the axial distance between the fresh air fan 6 and the exhaust air fan 7 can be arranged relatively close.

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

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

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

[0139] Referring to Figures 7-11 , the wall-mounted air conditioner 10000 further comprises a volute assembly, the volute assembly forms a fresh air duct V01 and an exhaust air duct V02, and the volute assembly is provided with 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 in communication with the fresh air duct V01, and the exhaust air inlet 901 and the exhaust air outlet 902 are in communication with the exhaust air duct V02.

[0140] The fresh air fan 6 is arranged in the fresh air duct V01, and the fresh air fan 6 rotates to allow outdoor air to enter the fresh air duct V01 from the fresh air inlet 801, and to allow the outdoor air in the fresh air duct V01 to enter the indoor environment from the fresh air outlet. The fresh air fan 6 is used to drive the air flow to be sucked from the fresh air inlet 801 and discharged to the indoor environment through the fresh air outlet. The operation of the fresh air fan 6 provides the driving force for the flow of fresh air.

[0141] Therefore, by arranging the fresh air duct V01 in cooperation with the fresh air fan 6, when the air in the indoor environment is relatively dirty or the air quality is poor, the relatively fresh outdoor air can be driven by the fresh air fan 6 to enter the indoor environment, so as to improve the air flow environment in the indoor 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 providing multiple fresh air outlets, the air volume can be increased.

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

[0145] In some embodiments, the number of fresh air outlets is multiple, and the multiple fresh air outlets are arranged in different directions.

[0146] In some embodiments, the fresh air outlets include a first fresh air outlet 802 and a second fresh air outlet 808, both of which are in communication with the fresh air duct V01. The rotation of the fresh air fan 6 can cause outdoor air to enter the fresh air duct V01 from the fresh air inlet 801, and the outdoor air entering the fresh air duct V01 can enter the indoor space from the first fresh air outlet 802 and the second fresh air outlet 808.

[0147] The exhaust fan 7 is arranged in the exhaust air duct V02, and the rotation of the exhaust fan 7 can cause indoor air to enter the exhaust air duct V02 from the exhaust air inlet 901, and the indoor air entering the exhaust air duct V02 can be discharged to the outdoor space from the exhaust air outlet 902. The exhaust fan 7 is used to drive the flow of air to be sucked in from the exhaust air inlet 901 and discharged to the indoor space from the exhaust air outlet 902. The operation of the exhaust fan 7 provides the driving force for the flow of dirty air.

[0148] Therefore, by providing the exhaust air duct V02 in cooperation with the exhaust fan 7, when the air in the indoor space is relatively dirty or the air quality is poor, the dirty air flow in the indoor space can be sucked and discharged by the exhaust fan 7. In this way, after the amount of indoor air is reduced, fresh air can be sucked from the outdoor space or from other rooms through doors and windows, so as to reduce the degree of dirtiness of the indoor air.

[0149] The fresh air fan 6, the exhaust fan 7 and the volute assembly constitute a bidirectional air exchange assembly, which is arranged in the main body 1000. The bidirectional air exchange assembly can provide fresh air to the indoor space and can discharge indoor air to the outdoor space.

[0150] It should be noted that in the wall-mounted air conditioner 10000, the operation mode of the bidirectional air exchange assembly can be set according to actual use requirements.

[0151] In some embodiments, the bidirectional ventilation assembly can simultaneously run the fresh air mode and the exhaust air mode, that is, the fresh air duct V01 and the exhaust air duct V02 can be opened at the same time, while the indoor dirty air flows to the outdoor space, the fresh air from the outdoor can also enter the indoor space, and the air flow driving combination of in and out is beneficial to increase the improvement efficiency of the indoor space air flow, thereby timely meeting the user's demand when the user urgently needs to exhaust or update the indoor air.

[0152] Moreover, since the indoor air is exhausted to the outdoor while the fresh outdoor air is supplemented to the indoor, the indoor air amount is sufficient, and it is easier to suck the indoor air. For example, if there is a stimulating gas (such as a gas released by a home decoration material), coal gas or other gas leakage in the indoor, the bidirectional ventilation assembly can be set to simultaneously run the fresh air mode and the exhaust air mode to achieve rapid ventilation, and compared with the conventional fresh air structure which simply introduces fresh air, the bidirectional ventilation assembly in some embodiments has a larger purification flow per unit time, a higher ventilation efficiency, and a good purification effect.

[0153] Moreover, when ventilation is performed, the indoor temperature is not changed sharply like when the window is directly opened, and the indoor personnel are not caused to be uncomfortable due to the sharp increase or decrease in temperature. Moreover, the position of the main body 1000 is relatively high, and the ventilation position will not cause discomfort due to being too close to the people.

[0154] In some embodiments, the bidirectional ventilation assembly can run the fresh air mode and the exhaust air mode by means of a valve, that is, when the bidirectional ventilation assembly is started in the fresh air mode, the exhaust air mode is stopped, at this time, only the fresh air duct V01 is ventilated, and the exhaust air duct V02 is not ventilated. Or when the bidirectional ventilation assembly is started in the exhaust air mode, the fresh air mode is stopped, at this time, the fresh air duct V01 is not ventilated, and the exhaust air duct V02 is ventilated.

[0155] It can be understood that when the wall-mounted air conditioner 10000 is in a cooling state, the bidirectional ventilation assembly sucks fresh air from the outdoor to the indoor, and the cold energy generated by the wall-mounted air conditioner 10000 can still remain in the indoor, and the cold energy loss is small. The indoor air is exhausted to the outdoor through the exhaust air duct V02, and by setting the exhaust air volume to be less than the fresh air volume, the cold energy loss can be reduced.

[0156] The bidirectional ventilation assembly is arranged at one end in the length direction of the heat exchange fan 41, and compared with the main body without the bidirectional ventilation assembly, only the transverse length is increased, and the height and the thickness of the main body 1000 can be substantially unchanged or slightly changed, so that the main body 1000 is light and thin in appearance, and when the main body 1000 is hung on the wall, the indoor space layout is not affected due to being too conspicuous, and the wall-mounted air conditioner 10000 is not difficult to fix due to being too heavy, and the risk of falling from the wall is reduced. The wall-mounted air conditioner 10000 is still a light and thin model, and when the wall-mounted air conditioner 10000 is hung on the wall, it is not only beautiful, but also the weight is controllable.

[0157] According to the wall-mounted air conditioner 10000, the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 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. The architecture of the wall-mounted air conditioner 10000 is sequentially arranged from right to left as follows: the common motor 42, the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6, and the exhaust fan 7 is arranged between the heat exchange fan 41 and the fresh air fan 6. The heat exchange fan 41 is arranged on the side close to the common motor 42, and the length of the heat exchange fan 41 is longer. Arranging the heat exchange fan 41 close to the common motor 42 can make the dynamic balance performance of the overall architecture better, and the integration of the overall architecture is higher.

[0158] The heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 are driven by the same motor, so that the three fans can be started and stopped at the same time and have the same rotating speed. In the related art, the fresh air fan is driven by a separate motor, and the exhaust fan is driven by a separate motor, which can cause high cost. The mode of driving the three fans to rotate by one motor can save two motors, and greatly reduce the cost.

[0159] In some embodiments of the present application, as shown in Figure 6 , Figure 14 , the common motor 42 includes an output shaft 421, and the heat exchange fan 41 is fixedly connected with the output shaft 421. The output shaft 421 drives the heat exchange fan 41 to rotate when the output shaft 421 rotates.

[0160] In some embodiments of the present application, as shown in Figures 4-6 , Figure 14 , the wall-mounted air conditioner 10000 further includes a transmission shaft 43, and the transmission shaft 43 is adapted to be fixedly connected with 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 synchronously rotate through the transmission shaft 43. Thus, one common motor 42 drives the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 to rotate, the number of motors is small, and the cost is saved.

[0161] In some embodiments of the present application, as shown in Figures 5-6 , Figure 14 , the output shaft 421 and the transmission shaft 43 are coaxially arranged.

[0162] In some embodiments of the present application, the transmission shaft 43 is adapted to be formed in one piece 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 installed on the transmission shaft 43.

[0163] For example, the transmission shaft 43 is formed in one piece with the heat exchange fan 41, and the exhaust fan 7 and the fresh air fan 6 are fixedly installed on the transmission shaft 43. The transmission shaft 43 and the heat exchange fan 41 can be fixed by welding or can be an integrally injection molded piece. The exhaust fan 7 and the transmission shaft 43, and the fresh air fan 6 and the transmission shaft 43 can be non-circular surface fit or interference fit to prevent relative rotation between the exhaust fan 7 and the transmission shaft 43, and between the fresh air fan 6 and the transmission shaft 43.

[0164] For example, the transmission shaft 43 is formed in one piece with the heat exchange fan 41, and the exhaust fan 7 and the fresh air fan 6 are fixedly installed on the transmission shaft 43. The transmission shaft 43 and the heat exchange fan 41 can be fixed by welding or can be an integrally injection molded piece. The exhaust fan 7 and the transmission shaft 43, and the fresh air fan 6 and the transmission shaft 43 can be non-circular surface fit or interference fit to prevent relative rotation between the exhaust fan 7 and the transmission shaft 43, and between the fresh air fan 6 and the transmission shaft 43.

[0165] For example, the transmission shaft 43 is formed in one piece with the heat exchange fan 41, and the exhaust fan 7 and the fresh air fan 6 are fixedly installed on the transmission shaft 43. The transmission shaft 43 and the heat exchange fan 41 can be fixed by welding or can be an integrally injection molded piece. The exhaust fan 7 and the transmission shaft 43, and the fresh air fan 6 and the transmission shaft 43 can be non-circular surface fit or interference fit to prevent relative rotation between the exhaust fan 7 and the transmission shaft 43, and between the fresh air fan 6 and the transmission shaft 43.

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

[0167] The volute assembly further includes a common volute 12, which includes a fresh air volute portion 121, the fresh air volute portion 121 being detachably connected with the first volute half 81, and the fresh air volute portion 121 forming a part of the fresh air air duct V01 in the first volute half 81.

[0168] The common volute 12 includes an exhaust volute portion 122, the exhaust volute portion 122 being detachably connected with the exhaust volute half 9, and the exhaust volute portion 122 forming an exhaust air duct V02 in the exhaust volute half 9.

[0169] In some embodiments, referring to Figures 3-4 、 Figures 7-11As shown, the fresh air volute part 121 and the exhaust air volute part 122 can be an integral piece, which can reduce the number of volutes and thus reduce the assembly process of the volute assembly. When installing the bidirectional air exchange assembly on the main body 1000, the common motor 42, the heat exchange fan 41, the exhaust air fan 7 and the fresh air fan 6 can be assembled into a motor fan assembly first, then the first volute half 81 and the exhaust air volute half 9 are installed on the base, and then the motor fan assembly is installed on the main body 1000, so that the fresh air fan 6 is located in the first volute half 81, the exhaust air fan 7 is located in the exhaust air volute half 9, and finally the common volute 12 is arranged above the exhaust air fan 7 and the fresh air fan 6, the fresh air volute part 121 is fixedly connected with the first volute half 81 by fasteners, and the exhaust air volute part 122 is fixedly connected with the exhaust air volute half 9 by fasteners.

[0170] In some embodiments, the fresh air volute part 121 and the exhaust air volute part 122 can be separate pieces. When installing the bidirectional air exchange assembly on the main body 1000, the common motor 42, the heat exchange fan 41, the exhaust air fan 7 and the fresh air fan 6 can be assembled into a motor fan assembly first, then the first volute half 81 and the exhaust air volute half 9 are installed on the base, and then the motor fan assembly is installed on the main body 1000, so that the fresh air fan 6 is located in the first volute half 81, the exhaust air fan 7 is located in the exhaust air volute half 9, and finally the fresh air volute part 121 is fixedly connected with the first volute half 81 by fasteners, and the exhaust air volute part 122 is fixedly connected with the exhaust air volute half 9 by fasteners, so that the fresh air volute part 121 is arranged above the fresh air fan 6, and the exhaust air volute part 122 is arranged above the exhaust air fan 7.

[0171] Optionally, the fastener can be a bolt, a screw or the like, which can firmly connect two parts.

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

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

[0174] In some embodiments, as shown in FIG. 1, the common volute 12 is arranged above the exhaust air fan 7 and the fresh air fan 6. Figure 3As shown, a part of the exhaust air inlet 901 is formed on the exhaust air volute half 9, another part is formed on the exhaust air volute part 122, and the axial direction of the exhaust air inlet 901 is arranged along the length direction of the heat exchange fan 41. That is, the exhaust air inlet 901 is opposite to the axial air inlet end of the exhaust air fan 7, so that the air resistance of the exhaust air fan 7 is small when the exhaust air inlet 901 is inhaled, which is beneficial to ensure the exhaust air inlet amount. When the exhaust air inlet is easy, a smaller size of the exhaust air fan 7 can be selected, and the size of the bidirectional air exchange assembly is further reduced.

[0175] The axial direction of the exhaust air inlet 901 is towards the indoor heat exchanger 2, that is, the air inlet area of the exhaust air inlet 901 is towards the indoor heat exchanger 2. In this way, the exhaust air inlet 901 is close to the heat exchange air inlet 101, the air inlet amount at the heat exchange air inlet 101 is large, and 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 amount at the exhaust air inlet 901 is sufficient.

[0176] The exhaust air fan 7 and the fresh air fan 6 are on the same side of the heat exchange fan 41. The exhaust air fan 7 is arranged in the exhaust air duct V02 formed by the exhaust air volute, and the fresh air fan 6 is arranged in the fresh air duct V01 formed by the fresh air volute. The volute side walls at the adjacent positions of the exhaust air fan 7 and the fresh air fan 6 can simultaneously serve as the volute side walls of the exhaust air fan 7 and the fresh air fan 6. For example, the plates of the fresh air volute part 121 and the first volute half 81 in the vertical direction can serve as the volute side walls shared by the exhaust air fan 7 and the fresh air fan 6. In this way, one part can be saved, and the overall performance is better.

[0177] In some embodiments, in combination with Figures 2-4 As shown, the first communication air duct V04 is formed between the heat exchange air inlet 101 and the exhaust air inlet 901. The indoor air is brought into the first communication air duct V04 by the rotation of the exhaust air fan 7, and the indoor air enters the exhaust air duct V02 through the exhaust air inlet 901.

[0178] That is, the heat exchange air inlet 101 and the exhaust air inlet 901 do not need to be connected by a solid pipe, and the airflow is only sucked from the top by the air pressure.

[0179] In some embodiments of the present application, referring to Figures 3-4 、 Figures 7-11 As shown, the volute assembly further comprises a second volute 82. 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 with the first volute half 81.

[0180] In some embodiments of the present application, the second volute 82 comprises a second volute half 821 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 with the first volute half 81, and the second volute half 821 is provided with an axial air vent 8211, and the second volute half 821, the fresh air volute part 121 and the first volute half 81 form a volute cavity V011, and the fresh air fan 6 is located in the volute cavity V011.

[0181] In some embodiments of the present application, the second volute 82 further comprises a fan cover 822 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 with the second volute half 821, and the cavity enclosed by the fan cover 822 and the second volute half 821 is a fresh air cavity V012.

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

[0183] Figure 15 As shown in the schematic view of the fresh air fan 6 in the fresh air volute part 121 and the first volute half 81, the first volute half 81 has a first surrounding plate 811 surrounding the radial outer side of the fresh air fan 6, and the fresh air volute part 121 has a second surrounding plate 1211 surrounding the radial outer side of the fresh air fan 6, and 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 is coaxially arranged with the heat exchange fan 41, and the outer diameter of the fresh air fan 6 is larger than the outer diameter of the heat exchange fan 41, and the thickness dimension of the main body 1000 is constant, the arrangement of the fresh air fan 6 in the fresh air volute part 121 and the first volute half 81 is inclined, and the fresh air fan 6 cannot be located at the center position of the fresh air volute curve, thereby causing the air volume discharged from the first fresh air outlet 802 to be reduced. Therefore, by providing the second fresh air outlet 808 above the fresh air fan 6, the air volume discharged from the fresh air volute is increased, which compensates for the defect of the reduced air volume due to the limitation of the position of the fresh air fan 6.

[0184] When the fresh air fan 6 is coaxially arranged with the heat exchange fan 41, the axis of the fresh air fan 6 is determined. The conventional volute curve design cannot be expanded, which limits the work of the blades of the fresh air fan 6, and can greatly reduce the air volume. When two fresh air outlets are designed, the space required for the expansion of the volute curve is half of that of a single outlet. The blades of the fresh air fan 6 can all work, and air is blown out from the two fresh air outlets respectively, so that the air volume is increased.

[0185] That is, compared with the volute assembly only provided with the first fresh air outlet 802, the volute assembly of the present application is provided with the first fresh air outlet 802 and the second fresh air outlet 808, so that the air volume is large.

[0186] By machining the volute assembly into the first volute half 81, the second volute half 821, the fan cover 822, the exhaust volute half 9, and the common volute 12 respectively, the manufacturing and assembling difficulty can be reduced, and the quality control can be facilitated after the complex shell is manufactured in parts. The first volute half 81 and the exhaust volute half 9 are detachably connected, the second volute half 821 and the first volute half 81 are detachably connected, the fan cover 822 and the second volute half 821 are detachably connected, and the common volute 12 and the first volute half 81 and the exhaust volute half 9 are detachably connected, so that the assembling is facilitated, and the subsequent adjustment and maintenance are facilitated.

[0187] It can be understood that the detachable connection between the two parts can be achieved by fasteners or buckling structures.

[0188] In some embodiments, the exhaust fan 7 can be a plastic part, so as to be light in weight and low in cost. In some embodiments, the exhaust fan 7 can also be a resin part, a metal part, etc.

[0189] In some embodiments, the fresh air fan 6 can be a plastic part, so as to be light in weight and low in cost. In some embodiments, the fresh air fan 6 can also be a resin part, a metal part, etc.

[0190] Similarly, the exhaust volute half 9 can be a plastic part, so as to be light in weight and low in 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 a resin part, a metal part, etc.

[0191] The first volute half 81 can be a plastic part, so as to be light in weight and low in 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 a plastic part, so as to be light in weight and low in cost. For example, the common volute 12 can be an injection molded part. In some embodiments, the common volute 12 can also be a resin part, a metal part, etc.

[0193] The second volute 82 can be a plastic part, so as to be light in weight and low in 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 the present application, with reference to Figures 2-5 , Figures 7-11The wall-mounted air conditioner 10000 further comprises a purifying member 11 arranged in the fresh air duct V01 and configured to purify the fresh air blown into the room to improve the cleanliness of the indoor air.

[0195] For example, the purifying member 11 is arranged in the fresh air cavity V012 and located at the axial air inlet end of the fresh air fan 6. The purifying member 11 is connected to the second volute 82, so that the purifying member 11 is conveniently assembled without interfering with the fresh air fan 6. The fresh air fan 6 rotates to allow the outdoor air to enter the fresh air cavity V012 from the fresh air inlet 801 and to be blown through the purifying member 11, enter the volute cavity V011 and be blown into the room from the fresh air outlet.

[0196] In this way, the fresh air flow can be almost vertically blown through the purifying member 11, and the fresh air inlet consumption can be further reduced, thereby increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in a refrigeration state and condensate water is generated in the fresh air, the condensate water can be left on the purifying member 11 when the air flows through the purifying member 11, thereby further avoiding the blowing of water when the fresh air device blows out.

[0197] In some embodiments, the fresh air outlet comprises a first fresh air outlet 802 and a second fresh air outlet 808, both of which are in communication with the fresh air duct V01. In this way, the outdoor air entering the volute cavity V011 enters the room from the first fresh air outlet 802 and the second fresh air outlet 808.

[0198] In some embodiments of the present application, as shown in Figure 11 The filter screen covers the entire air inlet end of the fresh air fan 6, has a large coverage area, a large filtering area and a good filtering effect. The filter screen is arranged to help ensure sufficient contact area with the airflow, and has a light weight and a low airflow noise. For example, the filter screen is a Hepa screen, and thus has a strong adsorption force and a strong filtering effect on dust in the air.

[0199] In some embodiments of the present application, the filter screen is plate-shaped, so that the filter screen is relatively thin as a whole and does not occupy a too thick size when placed in the bidirectional air exchange assembly.

[0200] In some embodiments of the present application, the filter screen is square-shaped, so that the positioning and installation of the filter screen are facilitated.

[0201] In some embodiments of the present application, the filter screen is a square screen, and the side length of the filter screen is greater than the diameter of the axial air vent 8211. The square screen is convenient to position when fixed, is not easy to shake after being fixed, and is easy to process with less waste. The side length of the filter screen is greater than the diameter of the axial air vent 8211, so that all the fresh air flow entering the axial air vent 8211 can flow through the filter screen, and the filtration cleanliness is high.

[0202] In some embodiments of the present application, referring to Figure 10 , a part of the fresh air cavity V012 constitutes an empty cavity V0121, the empty cavity V0121 is located on the side of the purification element 11 away from the fresh air fan 6, and the fresh air inlet 801 communicates with the empty cavity V0121.

[0203] For example, the purification element 11 is arranged in the fresh air cavity V012 close to the fresh air fan 6, and the part of the fresh air cavity V012 away from the fresh air fan 6 is the empty cavity V0121, that is, the space between the face of the purification element 11 and the inner surface of the fan cover 822 is the empty cavity V0121. Thus, the empty cavity V0121 is in a negative pressure state when the fresh air fan 6 operates, so that the air flow can automatically flow into the empty cavity V0121 from the fresh air inlet 801, and the air flow resistance is reduced.

[0204] The empty cavity V0121 corresponds to an air inlet negative pressure cavity of the fresh air fan 6, and the air inlet negative pressure cavity has many advantages:

[0205] 1. The air inlet efficiency is improved. For example, the air inlet amount of the fresh air fan 6 is increased by arranging the negative pressure cavity to increase the buffer space of the fresh air fan 6 on the air suction side, so that the fresh air fan 6 is easier to suck air. Moreover, the existence of the negative pressure cavity allows the fresh air to be buffered and adjusted in the negative pressure cavity before entering the fresh air fan 6, reduces the fluctuation and turbulence of the fresh air flow, and is beneficial to improving the air inlet stability of the fresh air fan 6. If there is no empty cavity V0121 and no buffer space, the flow resistance is increased, and the operating power consumption of the fresh air fan 6 is increased.

[0206] 2. The air flow distribution is optimized. For example, the buffer and guide of the negative pressure cavity are beneficial to guiding the air flow to be sucked into the fresh air fan 6 along the axial direction.

[0207] 3. The air flow impact is reduced, and the noise is absorbed.

[0208] In this way, the air inlet amount of the fresh air device is increased, and the overall air inlet reliability and stability are improved.

[0209] In some embodiments of the present application, in combination with Figures 10-11 , the fan cover 822 is further provided with a mounting port 803, and the purification element 11 is detachably assembled in the fresh air cavity V012 through the mounting port 803. In this way, when the purification element 11 is damaged or saturated, the purification element 11 can be disassembled 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 is arranged in a downward direction. It can be understood that the fresh air inlet 801 is located below the main body 1000, and the fresh air inlet 801 and the purification air inlet 804 are both located at the bottom of the fresh air volute and extend in a downward direction, which facilitates processing and molding. Moreover, in use, one of the two is opened. At this time, the fresh air inlet 801 and the purification air inlet 804 are both located at the bottom of the fresh air volute, which facilitates the centralized arrangement of switches to select one of the air inlets to be opened, thereby reducing the number of switches.

[0217] In some embodiments, in combination with Figure 4 、 Figure 8 As shown, the air inlet direction of the purification air inlet 804 is perpendicular to the length direction of the heat exchange fan 41. It can be understood that by arranging the air inlet direction of the purification air inlet 804 to be perpendicular to the length direction of the heat exchange fan 41, the air suction area of the purification air inlet 804 is far away from the exhaust air inlet 901, thereby avoiding excessive air suction energy consumption caused by the close proximity of the purification air inlet 804 and the exhaust air inlet 901. Moreover, the different directions of the purification air inlet 804 and the exhaust air inlet 901 help to expand the negative pressure area, which helps a large amount of indoor air to flow into the negative pressure area, thereby ensuring the exhaust air volume and the indoor fresh air volume.

[0218] In some embodiments of the present application, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000. It can be understood that the fresh air inlet 801 needs to be connected to a pipeline to introduce outdoor air, which is referred to as a fresh air introduction pipe herein. The fresh air introduction pipe can be a part of the wall-mounted air conditioner 10000, or a fresh air introduction pipe configured by the user after purchasing the wall-mounted air conditioner 10000.

[0219] By arranging the fresh air inlet 801 below the main body 1000, the fresh air introduction pipe can be connected to the fresh air inlet 801 from below, and the connection extends in a generally upward-downward direction rather than a front-rear direction, thereby making the main body 1000 thinner in appearance.

[0220] The part of the fresh air volute structure formed by the fresh air volute part 121 and the first volute half 81 for mounting the fresh air fan 6 is circular, and the axis of the fresh air fan 6 extends along the length direction of the heat exchange fan 41, so that there is a spare space on the front side and the rear side of the bottom of the circle. The fresh air inlet 801 can be arranged in this spare space to connect the fresh air introduction pipe, so that the connection between the fresh air introduction pipe and the fresh air inlet 801 can be placed in the spare space without occupying additional space, thereby controlling the height of the main body 1000.

[0221] In some embodiments, the air outlet 902 is located below the main body 1000 in the height direction of the main body 1000. Similarly, the air outlet 902 needs to be connected to a pipe to guide indoor air to the outdoor, which is referred to as an air outlet pipe. The air outlet pipe can be a part of the wall-mounted air conditioner 10000 or an air outlet pipe configured by the user after purchasing the wall-mounted air conditioner 10000.

[0222] By arranging the air outlet 902 below the main body 1000, the air outlet pipe can be connected to the air outlet 902 from below, and the connection extends generally in the up-down direction rather than in the front-back direction to make the main body 1000 too thick, so that the wall-mounted air conditioner 10000 can still maintain a thin appearance.

[0223] The part of the air outlet volute structure formed by the air outlet volute part 122 and the air outlet volute half 9 for mounting the air outlet fan 7 is circular, extends along the length direction of the heat exchange fan 41 based on the axis of the air outlet fan 7, so that the circular shape has free space on the front side and the rear side of the bottom, and based on the characteristics of the air outlet fan 7 that air enters axially and air exits radially, the diffuser section of the air outlet volute half 9 can be arranged generally in the up-down direction and can be placed in the free space on the front side or the rear side. The air outlet 902 is arranged here to connect the air outlet pipe, so that the connection between the air outlet pipe and the air outlet 902 can be placed in the free space without occupying additional space, so that the height of the main body 1000 can be controlled.

[0224] In some embodiments, the wall-mounted air conditioner 10000 can include a fresh air inlet pipe connected to the fresh air inlet 801 and an air outlet pipe connected to the air outlet 902, as shown in Figures 1-2 As shown, the side wall of the casing 1 is provided with a pipe avoiding opening 104, and after the fresh air inlet pipe is connected to the fresh air inlet 801 from below the main body 1000, it is bent to extend horizontally, then extends out of the pipe avoiding opening 104 on the side wall of the casing 1, and then extends to the outdoor. After the air outlet pipe is connected to the air outlet 902 from below the main body 1000, it is bent to extend horizontally, then extends out of the pipe avoiding opening 104 on the side wall of the casing 1, and then extends to the outdoor.

[0225] The fresh air inlet pipe and the air outlet pipe are two independent pipes, which can help the fresh air flow path and the air outlet flow path to be separated from each other, without crossing each other, reducing the risk of air leakage caused by mutual cross flow.

[0226] It can be understood that the main body 1000 usually also has 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 with the compressor and the outdoor heat exchanger, and the drain pipe is used to drain the condensed water generated in the wall-mounted air conditioner 10000.

[0227] The guide pipe avoiding opening 104 is arranged on the side wall of the casing 1, and then the fresh air inlet pipe and the exhaust air outlet pipe are transversely arranged and then led out, so that at least one of the fresh air inlet pipe and the exhaust air outlet pipe is arranged in parallel with the drain pipe and the refrigerant pipe. In this way, the plurality of pipes arranged in parallel are wrapped by the outer beam pipe or the beam belt, so that the plurality of pipes are in the shape of one pipe in appearance, thereby reducing the number of the connected pipes on the wall-mounted air conditioner 10000 after installation, and simplifying the appearance, which is convenient for assembly and avoids the risk of collision of the plurality of pipes.

[0228] In some embodiments of the present application, the first fresh air outlet 802 is located below the main body 1000 to guide the fresh air to flow forward and downward to the indoor. In this way, the air blown out of the first fresh air outlet 802 can directly blow to the user.

[0229] In some embodiments of the present application, the first fresh air outlet 802 can discharge air to the indoor through the heat exchange air outlet 102, so that it is not necessary to re-open the casing air outlet, thereby simplifying the processing technology of the casing 1. In addition, the air outlet area of the first fresh air outlet 802 is overlapped with the air outlet area of the heat exchange air outlet 102, which is beneficial to the mixing of the fresh air and the indoor air after heat exchange, on the one hand, improves the uniformity of the mixed fresh air in the indoor air, and on the other hand, the fresh air can absorb the cold or heat of the indoor air after heat exchange, so that the temperature of the fresh air tends to the indoor temperature, thereby improving the air blowing comfort.

[0230] In some embodiments of the present application, the casing 1 is provided with a casing air outlet, and the casing air outlet is spaced apart from the heat exchange air outlet 102. The first fresh air outlet 802 can discharge air to the indoor through the casing air outlet. The casing air outlet can be correspondingly arranged below the casing 1.

[0231] Since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, the heat exchange air outlet 102 is relatively low on the casing 1, so that the first fresh air outlet 802 blows fresh air from below, so that the air outlet area of the casing air outlet is close to or even partially overlapped with the air outlet area of the heat exchange air outlet 102, which is beneficial to the mixing of the fresh air and the indoor air after heat exchange, on the one hand, improves the uniformity of the mixed fresh air in the indoor air, and on the other hand, the fresh air can absorb the cold or heat of the indoor air after heat exchange, so that the temperature of the fresh air tends to the indoor temperature, thereby improving the air blowing comfort.

[0232] The air blowing direction of the first fresh air outlet 802 is opposite to the air inlet direction of the heat exchange air inlet 101, so that the fresh air blown out of the first fresh air outlet 802 cannot be sucked into the heat exchange air inlet 101, thereby reducing the proportion of the fresh air inlet amount in the heat exchange air inlet 101, increasing the total air outlet amount of the wall-mounted air conditioner 10000, and improving the overall circulation efficiency of the indoor air.

[0233] The first fresh air outlet 802 is located below the main body 1000, close to the space where people are active, and is convenient for people to observe the fresh air outlet condition. In this way, the fresh air outlet is visualized, which is beneficial to improve the experience and perception of people.

[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, so that the fresh air can flow forward and downward, which ensures that the fresh air can reach the ground and also ensures that the fresh air can reach a distance far enough.

[0235] In some embodiments of the present application, a wind guide grille is arranged at the casing air outlet of the casing 1 to adjust the outlet direction of the fresh air.

[0236] In some embodiments of the present application, as shown in Figures 1-4 The second fresh air outlet 808 is located at the top of the main body 1000 to guide the fresh air to flow upward into the room. When the wall-mounted air conditioner 10000 is in the cooling mode, the air blown out from the second fresh air outlet 808 can sink from top to bottom, thereby giving the user a showering wind experience from top to bottom, the user feels cooler, and the indoor temperature can be lowered faster.

[0237] In some embodiments of the present application, as shown in Figure 12 The fresh air fan 6 includes a fresh air disc 61 and a fresh air blade 62. The fresh air blade 62 is located at the outer edge of the fresh air disc 61 and extends along the axial direction of the fresh air disc 61. The total thickness of the fresh air disc 61 and the fresh air blade 62 in the axial direction is h1. Here, the fresh air disc 61 on the fresh air fan 6 can be one or at least two distributed along the axial direction. h1 is the maximum size of the fresh air fan 6 in the axial direction of the fresh air fan 6.

[0238] As shown in Figures 10-13 The exhaust fan 7 includes an exhaust disc 71 and an exhaust blade 72. The exhaust blade 72 is located at the outer edge of the exhaust disc 71 and extends along the axial direction of the exhaust disc 71. The total thickness of the exhaust disc 71 and the exhaust blade 72 in the axial direction is h2. Here, the exhaust disc 71 on the exhaust fan 7 can be one or at least two distributed along the axial direction. h2 is the maximum size of the exhaust fan 7 in the axial direction of the exhaust fan 7.

[0239] h2 < h1. In this way, while ensuring that the fresh air volume is greater than the exhaust air volume, the main body part of the fresh air fan 7 has a larger axial thickness, thereby having a larger structural strength and being able to bear a larger torque. The exhaust fan 7 requires less air volume, and the smaller axial thickness of the main body part can appropriately reduce the exhaust air volume and also reduce the axial size of the bidirectional air exchange assembly.

[0240] In some embodiments of the present application, the fresh air fan 6 is a single-sided suction single-suction centrifugal fan, and the fresh air blades 62 extend along the axial direction of the fresh air wheel disc 61 away from the exhaust air fan 7. Thus, the fresh air blades 62 can reduce the amount of air in the exhaust air duct V02 when the fresh air fan 6 rotates.

[0241] In some embodiments of the present application, the exhaust air fan 7 is a single-sided suction single-suction centrifugal fan, and the exhaust air blades 72 extend along the axial direction of the exhaust air wheel disc 71 away from the fresh air fan 6. Thus, the exhaust air blades 72 can reduce the amount of air in the fresh air duct V01 when the exhaust air fan 7 rotates.

[0242] In some embodiments of the present application, as shown in Figures 5-6 , Figure 14 , the outer diameter of the fresh air fan 6 is greater than the outer diameter of the heat exchange fan 41, so that the amount of fresh air is not too small. For example, in an 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 the present application, as shown in Figures 5-6 , Figure 14 , the outer diameter of the exhaust air fan 7 is greater than the outer diameter of the heat exchange fan 41, so that the amount of exhaust air is not too small. For example, in an embodiment, the outer diameter of the exhaust air fan 7 is equal to the outer diameter of the fresh air fan 6, and the outer diameter of the fresh air fan 6 and the outer diameter of the exhaust air fan 7 are both 137 mm, and the outer diameter of the heat exchange fan 41 is 94 mm.

[0244] In some embodiments of the present application, as shown in Figures 8-9 , Figure 11 , the exhaust air outlet 902 of the exhaust air duct V02 and the first fresh air outlet 802 of the fresh air duct V01 are arranged in a staggered manner on the outer periphery of the bidirectional ventilation assembly. On the one hand, this facilitates the connection of the exhaust air outlet pipe to the exhaust air outlet 902 and the connection of the fresh air inlet pipe to the fresh air inlet 801, avoiding interference caused by the close distance between the two pipe joints. On the other hand, the flow paths of the fresh air and the exhaust air in the bidirectional ventilation assembly are easy to avoid crossing.

[0245] In some embodiments, the exhaust air outlet 902 is arranged in a downward direction, and the first fresh air outlet 802 is arranged in a forward direction. In this way, the pipe connection positions of the exhaust air outlet 902 and the first fresh air outlet 802 can be directly staggered, and the exhaust air outlet 902 is arranged in a downward direction to facilitate the connection of the exhaust air outlet pipe and the wall-mounted arrangement of the exhaust air outlet pipe. The first fresh air outlet 802 is arranged in a forward direction, so that the fresh air can be sent forward, and the fresh air supply range is larger.

[0246] For example, the air outlet 902 is located at the rear side of the air exhaust volute half 9, and the air outlet direction of the air outlet 902 is downward. In this way, when the air exhaust pipe is connected to the air outlet 902, the air exhaust pipe does not excessively lengthen the wall-mounted air conditioner 10000 as a whole, and the air outlet 902 is left on the wall side of the air exhaust volute half 9, which facilitates the formation of a body 1000 with a rear wide and front narrow shape.

[0247] When the body 1000 is formed with a rear wide and front narrow shape, the wider back is installed against the wall, and when people observe the wall-mounted air conditioner 10000, they see the narrower front, which is conducive to creating a lighter and thinner impression of the wall-mounted air conditioner 10000. In this way, the thickness of the wall-mounted air conditioner 10000 can be reduced, and the sense of oppression caused by the wall-mounted air conditioner 10000 after being hung on the wall can be reduced.

[0248] In some embodiments, the air outlet direction of the first fresh air outlet 802 is downward and inclined forward at the same time. In this way, it is conducive to letting the wall-mounted air conditioner 10000 send fresh air forward, which not only ensures that the fresh air can be sent to the ground but also ensures that the fresh air can be sent to a distance far enough.

[0249] For example, the first fresh air outlet 802 is located at the front side of the air outlet 902, so that the first fresh air outlet 802 is staggered from the air outlet 902 by a greater distance, which is more conducive to reducing mutual interference and facilitating pipe connection.

[0250] In some embodiments, in the height direction of the body 1000, the fresh air inlet 801 is located below the body 1000, and in the length direction of the heat exchange fan 41, the first fresh air outlet 802 is located between the fresh air inlet 801 and the air outlet 902. In this way, the fresh air inlet 801, the first fresh air outlet 802, the air outlet 902, and the pipe connection position are compact, which is conducive to reducing the overall size.

[0251] In some embodiments of the present application, as shown in Figures 4-6 , Figure 14 The wall-mounted air conditioner 10000 further comprises a first bearing seat 131 and a first bearing 132. The first bearing seat 131 is arranged on the base 3, the first bearing 132 is arranged in the first bearing seat 131, and the first bearing 132 is used to support the transmission shaft 43.

[0252] The common motor 42, the heat exchange fan 41, the transmission shaft 43, the air exhaust fan 7, and the fresh air fan 6 constitute an axis three-fan structure. By arranging the first bearing 132, the stability of the axis three-fan structure is improved, and the runout of the axis three-fan structure is reduced.

[0253] In some embodiments of the present application, as shown in Figure 14As shown, the wall-mounted air conditioner 10000 further comprises a second bearing 133, which is arranged between the exhaust fan 7 and the fresh air fan 6 and is used to support the transmission shaft 43. By arranging the second bearing 133, the stability of the one-shaft three-fan structure can be further improved, and the runout of the one-shaft three-fan structure can be reduced. In particular, since the exhaust fan 7 and the fresh air fan 6 are far away 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 generate a large runout, which will affect the air volume and generate noise. In order to solve this problem, the second bearing 133 is arranged between the exhaust fan 7 and the fresh air fan 6 to support the transmission shaft 43, and the second bearing 133 can significantly reduce the runout of the exhaust fan 7 and the fresh air fan 6, and alleviate the runout problem of the exhaust fan 7 and the fresh air fan 6. The second bearing 133 can correct the concentricity of the exhaust fan 7 and the fresh air fan 6.

[0254] The first bearing half-hole is arranged on the first volute half 81, the second bearing half-hole is arranged on the fresh air volute part 121, and the first bearing half-hole and the second bearing half-hole enclose the 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 transmission shaft 43.

[0255] Since the exhaust fan 7 rotates in the exhaust volute, and the fresh air fan 6 rotates in the fresh air volute. If the dynamic balance of the fan is relatively poor, the gap between the fan and the corresponding volute will be in a process of constant and slight changes. Such changes will generate airflow disturbance, affecting the air volume and noise. Fixing the second bearing 133 on the first volute half 81 and the fresh air volute part 121 is equivalent to fixing the gap between the fan and the corresponding volute, which can well solve the problem of wind noise caused by the dynamic balance of the exhaust fan 7 and the fresh air fan 6.

[0256] In some embodiments, with reference to Figures 2-4 As shown, the wall-mounted air conditioner 10000 further comprises an end plate 31, which is located at one end of the indoor heat exchanger 2 close to the exhaust fan 7, and the end plate 31 is connected with the indoor heat exchanger 2. The end plate 31 is used to mount the indoor heat exchanger 2 on the base 3.

[0257] The wall-mounted air conditioner 10000 further comprises a heat exchanger outlet pipe, which is connected to one end of the indoor heat exchanger 2 facing the common motor 42. With reference to Figure 3 , one end of the indoor heat exchanger 2 facing the common motor 42 is an outlet end 21, and the heat exchanger outlet pipe is connected to the outlet end 21.

[0258] In the length direction of the main body 1000, the common motor 42 and the heat exchanger outlet pipe at least partially overlap. In this way, the total length of the common motor 42 and the heat exchanger outlet pipe in the length direction of the main body 1000 can be saved.

[0259] In some embodiments of the present application, the axial direction of the exhaust air inlet 901 is 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 air volute half 9, and a gap is provided between the end plate 31 and the common volute 12, which is used to form a passage for the indoor air from the heat exchange inlet 101 to the exhaust air inlet 901. Specifically, when the exhaust air fan 7 rotates, the indoor air can be sucked into the casing 1 through the heat exchange inlet 101, and at least part of the indoor air in the casing 1 can enter the exhaust air inlet 901 through the gap, thereby entering the exhaust air duct V02.

[0260] The exhaust air inlet 901 is close to the end plate 31, and the gap between the end plate 31 and the volute assembly can be used to realize air inlet circulation, without the need to separately reserve an air inlet gap. The exhaust air fan 7 is a centrifugal fan with side air inlet, and this air inlet mode requires a certain air inlet gap on the air inlet side to reduce the air inlet resistance. By arranging the exhaust air fan 7 on the side close to the heat exchange fan 41, the gap between the end plate 31 and the volute assembly can be used to realize air inlet.

[0261] In some embodiments of the present application, the outer diameter of the fresh air fan 6 is D1, and the thickness dimension of the main body 1000 in the front-rear direction of the main body 1000 is T, 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 dimension 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, which results in too small fresh air volume, and the effect of introducing fresh air into the room is not good. By setting D1:T≥1:1.7, the outer diameter of the fresh air fan 6 will not be too small, the fresh air volume will not be too small, and the effect of introducing fresh air into the room will be better.

[0263] In some embodiments, the ratio of the outer diameter of the fresh air fan 6 to the thickness dimension 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 occupy the space of the logarithmic spiral of the fresh air volute, resulting in that the logarithmic spiral of the fresh air volute is not complete or cannot be designed according to the maximum fresh air volume, which results in too small fresh air volume, and the effect of introducing fresh air into the room is not good. In the front-rear direction of the main body 1000, the outer diameter of the fresh air fan 6 plus the limit dimension of the logarithmic spiral of the reasonable fresh air volute is equal to the thickness dimension of the main body 1000. By setting D1:T≤1:1.3, the outer diameter of the fresh air fan 6 will not be too large, which will not excessively occupy 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, so as to ensure that the fresh air volume will not be too small, and the effect of introducing fresh air into the room will be better.

[0264] For example, D1:T can be 1:1.3, 1:1.4, 1:1.5, 1:1.6, 1:1.7, etc., and can also be other values between 1:1.7 and 1:1.3, which are not listed one by one here.

[0265] In some embodiments, the ratio of the outer diameter of the fresh air fan 6 to the thickness dimension of the main body 1000 is equal to 1:1.5, that is, D1:T = 1:1.5. The outer diameter of the fresh air fan 6 cannot be too small, and the fresh air volume cannot be too small, and the effect of introducing fresh air into the room is better. The outer diameter of the fresh air fan 6 cannot be too large, and it cannot occupy too much space of the logarithmic spiral of the fresh air volute, the logarithmic spiral of the fresh air volute is complete, and it can be designed according to the maximum fresh air volume, so as to ensure that the fresh air volume is not too small, and the effect of introducing fresh air into the room is better.

[0266] In some embodiments of the present application, as shown in Figures 1-2 The panel 15 is pivotally connected to the shell 1 at one end, for example, the upper end of the panel 15 is pivotally connected to the shell 1. The panel 15 can rotate relative to the shell 1. When the panel 15 is turned to the open state, the purification element 11 is exposed, and the user can disassemble the filter screen in the purification element 11. When the panel 15 is turned to the closed state, the purification element 11 is blocked. At this time, the panel 15 is an appearance element, and the appearance of the wall-mounted air conditioner 10000 is neat.

[0267] In some embodiments of the present application, as shown in Figures 1-2 The air baffle 16 is pivotally connected to the shell 1 at both ends. It can rotate relative to the shell 1. When the air baffle 16 is turned to the open state, the heat exchange air outlet 102 is exposed, and the air outlet from the heat exchange air outlet 102 is facilitated. When the air baffle 16 is turned to the closed state, the heat exchange air outlet 102 is blocked, preventing the heat exchange air outlet 102 from being exposed when the wall-mounted air conditioner 10000 is not working, so that sundries, flying insects, etc. enter the interior of the wall-mounted air conditioner 10000 through the heat exchange air outlet 102.

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

[0269] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0270] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the present specification.

[0271] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A wall-mounted air conditioner (10000) comprising: a main body (1000) comprising: a casing (1) having an accommodating cavity (V1) formed inside, and a heat exchange air inlet (101) and a heat exchange air outlet (102) formed on the casing (1) ; a base (3) disposed in the accommodating cavity (V1) and having a volute tongue air duct formed thereon; a heat exchange fan (41) disposed in the volute tongue air duct; characterized in that further comprising: a common motor (42) disposed in the accommodating cavity (V1) and located at one end of the heat exchange fan (41) in a length direction of the heat exchange fan (41) ; a fresh air fan (6) which is a centrifugal fan with axial air inlet and radial air outlet, and is located at the other end of the heat exchange fan (41) in the length direction of the heat exchange fan (41) ; an exhaust air fan (7) which is a centrifugal fan with axial air inlet and radial air outlet; wherein the exhaust air 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 air fan (7) and the fresh air fan (6) to rotate synchronously in a working state; a volute assembly having a fresh air duct (V01) and an exhaust air duct (V02) formed therein, and a fresh air inlet (801), a fresh air outlet, an exhaust air inlet (901) and an exhaust air outlet (902) formed thereon, the fresh air inlet (801) and the fresh air outlet being in communication with the fresh air duct (V01), and the exhaust air inlet (901) and the exhaust air outlet (902) being in communication with the exhaust air duct (V02) ; the fresh air fan (6) is disposed in the fresh air duct (V01), and rotation of the fresh air fan (6) can make outdoor air enter the fresh air duct (V01) from the fresh air inlet (801) and enter a room from the fresh air outlet; the exhaust air fan (7) is disposed in the exhaust air duct (V02), and rotation of the exhaust air fan (7) can make indoor air enter the exhaust air duct (V02) from the exhaust air inlet (901) and be exhausted 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) comprises an output shaft (421), and the heat exchange fan (41) is fixedly connected with the output shaft (421) ; the wall-mounted air conditioner (10000) further comprises: a transmission shaft (43) adapted to be fixedly connected with the heat exchange fan (41), the exhaust air fan (7) and the fresh air fan (6). 3.The wall-mounted air conditioner (10000) according to claim 2, characterized in that, the transmission shaft (43) is adapted to be formed in one piece with one of the heat exchange fan (41), the exhaust air fan (7) and the fresh air fan (6), and the other two of the heat exchange fan (41), the exhaust air fan (7) and the fresh air fan (6) are fixedly installed on the transmission shaft (43). 4.The wall-mounted air conditioner (10000) according to claim 1, wherein, The fresh air outlet comprises a first fresh air outlet (802) and a second fresh air outlet (808), both of which are in communication with 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 the fresh air to flow forward and downward into the room. The second fresh air outlet (808) is located at the top of the main body (1000) to guide the fresh air to flow upward into the room. 6.The wall-mounted air conditioner (10000) according to any one of claims 1-5, characterized in that, The volute assembly comprises: a first volute half (81); an exhaust volute half (9) located on the side of the first volute half (81) facing the common motor (42); a common volute (12) comprising: a fresh air volute part (121) detachably connected with the first volute half (81), which forms a part of the fresh air duct (V01) in the first volute half (81); an exhaust volute part (122) detachably connected with the exhaust volute half (9), which forms the exhaust air duct (V02) in 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 further comprises: a second volute (82) located on the side of the first volute half (81) away from the heat exchange fan (41), and detachably connected with the first volute half (81). 9.The wall-mounted air conditioner (10000) according to claim 8, characterized in that, The second volute (82) comprises: a second volute half (821) located on the side of the first volute half (81) away from the heat exchange fan (41), and detachably connected with the first volute half (81), and provided with an axial air vent (8211), 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), and 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) further comprises: a fan cover (822) located on the side of the second volute half (821) away from the heat exchange fan (41), and detachably connected with the second volute half (821), and the cavity enclosed by the fan cover (822) and the second volute half (821) is a 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) enclose a first fresh air outlet (802), and the second volute half (821) and the fresh air volute part (121) enclose a second fresh air outlet (808). 12.The wall-mounted air conditioner (10000) according to claim 10, characterized in that, Further comprising: A purification member (11) is installed in the fresh air cavity (V012), the purification member (11) is connected with the second volute (82), and 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 blow through the purification member (11) to enter the volute cavity (V011) and enter the room from the fresh air outlet. 13.The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The purification member (11) comprises a filter screen, and the filter screen covers the axial air vent (8211). 14.The wall-mounted air conditioner (10000) according to claim 13, characterized in that, The filter screen is a square screen, and the side length of the filter screen is greater than the diameter of the axial air vent (8211). 15.The wall-mounted air conditioner (10000) according to claim 12, wherein, A part of the fresh air cavity (V012) constitutes an empty cavity (V0121), the empty cavity (V0121) is located on the side of the purification member (11) away from the fresh air fan (6), and the fresh air inlet (801) communicates with the empty cavity (V0121). 16.The wall-mounted air conditioner (10000) according to claim 12, wherein, The fan cover (822) further comprises an installation opening (803) for enclosing the installation opening (803), and the purification member (11) is detachably assembled in the fresh air cavity (V012) through the installation opening (803). 17.The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The second volute (82) is formed with a purification air inlet (804) for communicating with the room, the fresh air fan (6) rotates to allow indoor air to enter the fresh air cavity (V012) from the purification air inlet (804) to pass through the purification member (11) for purification, and to allow the indoor air entering the fresh air cavity (V012) to blow through the purification member (11) to 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 is arranged downward. 19.The wall-mounted air conditioner (10000) according to claim 1, wherein, In the height direction of the main body (1000), the fresh air inlet (801) and the exhaust air outlet (902) are located below the main body (1000). 20.The wall-mounted air conditioner (10000) according to claim 1, wherein, The fresh air fan (6) comprises: A fresh air disc (61); and A fresh air blade (62) located at the outer edge of the fresh air disc (61) and extending along the axial direction of the fresh air disc (61), and the total thickness of the fresh air disc (61) and the fresh air blade (62) in the axial direction is h1. The exhaust air fan (7) comprises: An exhaust air disc (71); and An exhaust air blade (72) located at the outer edge of the exhaust air disc (71) and extending along the axial direction of the exhaust air disc (71), and the total thickness of the exhaust air disc (71) and the exhaust air blade (72) in the axial direction is h2. Wherein, h2 < h1. 21.The wall-mounted air conditioner (10000) according to claim 20, characterized in that, The fresh air blade (62) extends along the axial direction of the fresh air wheel disc (61) away from the exhaust fan (7). The exhaust blade (72) extends along the axial direction of the exhaust wheel disc (71) 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 greater than the outer diameter of the heat exchange fan (41). 23.The wall-mounted air conditioner (10000) according to claim 2, characterized in that, Further comprising: A first bearing seat (131) is arranged on the base (3); A first bearing (132) is arranged in the first bearing seat (131) and used for supporting the transmission shaft (43). 24.The wall-mounted air conditioner (10000) according to claim 2, characterized in that, Further comprising: A second bearing (133) is arranged between the exhaust fan (7) and the fresh air fan (6) and used for supporting the transmission shaft (43). 25.The wall-mounted air conditioner (10000) according to claim 1, wherein, Further comprising: An indoor heat exchanger (2) is arranged in the accommodating cavity (V1); An end plate (31) is arranged at one end of the indoor heat exchanger (2) close to the exhaust fan (7), and the end plate (31) is connected with the indoor heat exchanger (2), and the end plate (31) is used for mounting the indoor heat exchanger (2) on the base (3); A heat exchanger outlet pipe is connected to one end of the indoor heat exchanger (2) facing the common motor (42); Wherein, in the length direction of the main body (1000), the common motor (42) and the heat exchanger outlet pipe at least partially overlap. 26.The wall-mounted air conditioner (10000) according to claim 25, characterized in that, The axial direction of the exhaust air inlet (901) is towards the indoor heat exchanger (2), and a gap is arranged between the end plate (31) and the volute assembly, and the gap is used for forming a passage for indoor air from the heat exchange air inlet (101) to the exhaust air inlet (901). 27.The wall-mounted air conditioner (10000) according to claim 1, wherein, The outer diameter of the fresh air fan (6) is D1, and in the front-rear direction of the main body (1000), the thickness dimension of the main body (1000) is T, D1:T≥1:1.7, and D1:T≤1:1.3.

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