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, an indoor heat exchanger, a base and a heat exchange fan, the wall-mounted air conditioner further comprises a public motor, a fresh air fan, an exhaust fan and a volute assembly, and a first fresh air outlet is located in the top of the main body so as to guide fresh air to flow upwards into a room; the heat exchange air inlet is formed in the top of the main body so as to guide indoor air to flow downwards into the volute tongue air duct; the heat exchange air inlet and the first fresh air outlet are arranged at intervals in the length direction of the main body, and the distance between the heat exchange air inlet and the first fresh air outlet is larger than 50 mm. According to the wall-mounted air conditioner, air exhausted from the first fresh air outlet can be diffused into a room in time, the situation that most fresh air exhausted from the first fresh air outlet enters the volute tongue air duct through the heat exchange air inlet, and airflow short circuit occurs is reduced as much as possible, the ventilation effect of the wall-mounted air conditioner is improved, and the ventilation efficiency of the wall-mounted air conditioner is improved. And the use experience of the user is improved.

Description

TECHNICAL FIELD

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

[0002] In the related art, some wall-mounted air conditioners are provided with a heat exchange fan, a fresh air fan and an exhaust fan. The heat exchange fan is used to exchange heat between air inside the air conditioner and the indoor space. The fresh air fan inhales fresh air from the outdoor. The exhaust fan exhausts indoor air. However, in this process, the fresh air exhausted from the fresh air outlet is easily inhaled into the machine again through other air inlets, resulting in poor ventilation effect, and thus there is room for improvement. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the above technical problems in the prior art to some extent. To this end, the present application provides a wall-mounted air conditioner, which can reduce air flow short circuit, has good ventilation effect and good user experience.

[0004] The wall-mounted air conditioner according to the embodiments of the present application comprises a main body, the main body comprises a casing, an accommodating cavity is formed in the inside of the casing, and a heat exchange air inlet and a heat exchange air outlet are formed on the casing.

[0005] The wall-mounted air conditioner further comprises an indoor heat exchanger arranged in the accommodating cavity.

[0006] The wall-mounted air conditioner further comprises a base arranged in the accommodating cavity, and a volute tongue air duct is formed on the base.

[0007] The wall-mounted air conditioner further comprises a heat exchange fan arranged in the volute tongue air duct.

[0008] The wall-mounted air conditioner further comprises a common motor arranged in the accommodating cavity and located at one end in the length direction of the heat exchange fan.

[0009] The wall-mounted air conditioner further comprises a fresh air fan, which is an axial air inlet and radial air outlet centrifugal fan, and the fresh air fan is located at the other end in the length direction of the heat exchange fan.

[0010] The wall-mounted air conditioner further comprises an exhaust fan, which is an axial air inlet and radial air outlet centrifugal fan.

[0011] 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.

[0012] The wall-mounted air conditioner further comprises a volute assembly in which a fresh air duct and an exhaust air duct are formed, and the fresh air inlet, the fresh air outlet, the exhaust air inlet and the exhaust air outlet are formed on the volute assembly, the fresh air inlet and the fresh air outlet are communicated with the fresh air duct, and the exhaust air inlet and the exhaust air outlet are communicated with the exhaust air duct.

[0013] The fresh air fan is arranged in the fresh air duct, and rotation of the fresh air fan can make outdoor air enter the fresh air duct from the fresh air inlet and enter a room from the fresh air outlet.

[0014] The exhaust air fan is arranged in the exhaust air duct, and rotation of the exhaust air fan can make indoor air enter the exhaust air duct from the exhaust air inlet and be exhausted to the outside from the exhaust air outlet.

[0015] The fresh air outlet comprises a first fresh air outlet, the first fresh air outlet is communicated with the fresh air duct and is located at the top of the main body to guide the fresh air to flow upwards into the room, the heat exchange inlet is located at the top of the main body to guide the indoor air to flow downwards into the volute tongue duct, and the heat exchange inlet and the first fresh air outlet are arranged at intervals in the length direction of the main body and are spaced apart by a distance greater than 50 mm.

[0016] According to the wall-mounted air conditioner provided by the embodiment of the present application, the distance between the heat exchange inlet and the first fresh air outlet is limited in the above range, so that the air discharged from the first fresh air outlet can be diffused into the room in time, and most of the fresh air discharged from the first fresh air outlet can enter the volute tongue duct through the heat exchange inlet to cause air flow short circuit, which is beneficial to improving the ventilation effect of the wall-mounted air conditioner and thus improving the user experience.

[0017] According to some embodiments of the present application, a first communication duct is formed between the heat exchange inlet and the exhaust air inlet, the exhaust air fan drives the indoor air to enter the first communication duct from the heat exchange inlet, and the indoor air enters the exhaust air duct through the exhaust air inlet; the distance between the exhaust air inlet and the first fresh air outlet in the length direction of the main body is greater than 50 mm.

[0018] According to some embodiments of the present application, the top of the shell has an indoor air outlet area and an annular coaming, the annular coaming is arranged around the indoor air outlet area; the structure forming the first fresh air outlet in the volute assembly is sleeved and sealingly fitted with the annular coaming, so that the outdoor air discharged from the first fresh air outlet enters the room through the indoor air outlet area.

[0019] According to some embodiments of the present application, the wall-mounted air conditioner further comprises an end plate 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, and the end plate is used to mount the indoor heat exchanger on the base;

[0020] The exhaust air inlet is located on the side of the volute assembly facing the indoor heat exchanger, and the axial direction of the exhaust air inlet faces the indoor heat exchanger, and a gap is provided between the end plate and the volute assembly, and the gap is used to form a channel for the indoor air from the heat exchange air inlet to the exhaust air inlet.

[0021] According to some embodiments of the present application, the distance between the end plate and the volute assembly in the length direction of the main body is less than 5 mm.

[0022] According to some embodiments of the present application, the side of the base away from the volute tongue air duct has a recess, and the recess is in communication with the indoor environment; wherein the end plate is provided with a wind passing hole, and the wind passing hole is in communication with the exhaust air inlet and the recess.

[0023] 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; wherein the fresh air inlet is used to connect a fresh air inlet pipe, and the exhaust air outlet is used to connect an exhaust air outlet pipe, and the fresh air inlet pipe and the exhaust air outlet pipe are at least partially arranged in the recess.

[0024] 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; the wall-mounted air conditioner further comprises a transmission shaft, and the transmission shaft is adapted to be fixedly connected with the heat exchange fan, the exhaust fan and the fresh air fan.

[0025] According to some embodiments of the present application, the volute assembly comprises a first volute half body and an exhaust volute half body located on the side of the first volute half body facing the common motor.

[0026] The volute assembly further comprises a common volute, and the common volute comprises a fresh air volute part and an exhaust air volute part; the fresh air volute part is detachably connected with the first volute half body, and the fresh air volute part and the first volute half body form a part of the fresh air air duct; the exhaust air volute part is detachably connected with the exhaust volute half body, and the exhaust air volute part and the exhaust volute half body form the exhaust air air duct.

[0027] The volute assembly further comprises a second volute located on the side of the first volute half and the common volute away from the heat exchange fan and detachably connected with the first volute half and the common volute, and the three together define a communicating fresh air cavity and a volute cavity, the fresh air inlet communicates with the fresh air cavity, the volute cavity communicates with the fresh air outlet, and the fresh air fan is located in the volute cavity.

[0028] According to some embodiments of the present application, the second volute comprises a fan cover located on the side of the first volute half and the common volute away from the heat exchange fan, and the fan cover is adapted to define the fresh air cavity, and the fresh air inlet is formed on the fan cover.

[0029] According to some embodiments of the present application, the fan cover is open towards one end of the first volute half and the common volute, and one end of the first volute half and the common volute is open towards the fan cover, and the open end of the fan cover is connected with the open end of the first volute half and the open end of the common volute to make the three together define the fresh air cavity and the volute cavity; the fan cover and the fresh air volute part enclose a first fresh air outlet, and the fan cover and the first volute half enclose a second fresh air outlet.

[0030] According to some embodiments of the present application, the second volute further comprises a second volute half located between the first volute half and the fan cover and between the common volute and the fan cover and detachably connected with the first volute half, the common volute and the fan cover.

[0031] The second volute half and the fan cover form the fresh air cavity therebetween, the second volute half, the fresh air volute part and the first volute half form the volute cavity therebetween, and the second volute half is provided with an axial air vent communicating the fresh air cavity and the volute cavity.

[0032] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a perspective view of a wall-mounted air conditioner according to embodiments of the present application;

[0034] Figure 2 is a structural view of a main body of a wall-mounted air conditioner and a bidirectional air exchange assembly according to some embodiments;

[0035] Figure 3 is Figure 2 is a perspective view of the bidirectional air exchange assembly shown in

[0036] Figure 4 is a side view of the bidirectional ventilation assembly shown in Figure 2

[0037] Figure 5 is a structural sectional view along Figure 4 line A-A in

[0038] Figure 6 is a structural schematic view of the main body of the wall-mounted air conditioner and the bidirectional ventilation assembly according to some embodiments;

[0039] Figure 7 is a perspective view of the bidirectional ventilation assembly shown in Figure 6

[0040] Figure 8 is a perspective view of the bidirectional ventilation assembly shown in Figure 6

[0041] Figure 9 is a connection schematic view of the common motor, the heat exchange fan, the first bearing, the exhaust fan, and the fresh air fan;

[0042] Figure 10 is a connection schematic view of the common motor, the heat exchange fan, the first bearing, the exhaust fan, the second bearing, and the fresh air fan;

[0043] Figure 11 is a top view of the wall-mounted air conditioner according to some embodiments;

[0044] Figure 12 is a structural sectional view of the wall-mounted air conditioner according to some embodiments;

[0045] Figure 13 is an enlarged view of part B shown in Figure 12

[0046] Figure 14 is a structural schematic view of the base of the wall-mounted air conditioner, the bidirectional ventilation assembly according to some embodiments;

[0047] Figure 15 is a structural schematic view of the base of the wall-mounted air conditioner, the bidirectional ventilation assembly, the indoor heat exchanger, etc. according to some embodiments;

[0048] Figure 16 is an enlarged view of part C shown in Figure 14

[0049] Figure 17 is a structural exploded view of the bidirectional ventilation assembly shown in Figure 2

[0050] ​​​​​​Figure 18 is Figure 6 is a structural exploded view of the bidirectional ventilation assembly shown in

[0051] Reference signs:

[0052] wall-mounted air conditioner 10000, main body 1000, casing 1, accommodating cavity V1,

[0053] heat exchange air inlet 101, heat exchange air outlet 102, first communication air duct V04, guide pipe avoiding opening 104, indoor air outlet area 105, annular coaming 106,

[0054] indoor heat exchanger 2,

[0055] base 3, volute tongue air duct V03, concave cavity V05, end plate 31, air passing hole 311,

[0056] heat exchange fan 41, common motor 42, output shaft 421, transmission shaft 43,

[0057] fresh air fan 6, fresh air disc 61, fresh air blade 62, first fresh air blade 621, second fresh air blade 622,

[0058] exhaust fan 7, exhaust disc 71, exhaust blade 72,

[0059] fresh air duct V01, volute cavity V011, fresh air cavity V012, air cavity V0121, fresh air inlet 801, first fresh air outlet 802, mounting opening 803, purification air inlet 804, second fresh air outlet 808,

[0060] first volute half 81, first coaming 811, second volute 82, second volute half 821, axial air passage 8211, fan cover 822,

[0061] exhaust volute half 9, exhaust air duct V02, exhaust air inlet 901, exhaust air outlet 902,

[0062] purification piece 11,

[0063] common volute 12, fresh air volute part 121, second coaming 1211, exhaust volute part 122,

[0064] first bearing seat 131, first bearing 132, second bearing 133,

[0065] panel 15, wind shield 16. DETAILED DESCRIPTION

[0066] Some embodiments of the present application will be described in detail with reference to the drawings, wherein the same or similar components are denoted by the same reference numerals, and clearly and completely described. Obviously, the described embodiments are only a part 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 a person of ordinary skill in the art belong to the scope of protection of the present application.

[0067] Unless otherwise required by context, the term "comprise" and its other forms such as "comprises" and "comprising" are to be construed as open-ended, i.e. as "including, but not limited to", in the description and the claims. In the description, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" mean that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearance of the above terms in various places in the description are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0068] Hereinafter, the terms "first" and "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0069] In describing some embodiments, "connected" and its derivatives can be used. The term "connected" should be interpreted broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrated; can be directly connected, or indirectly connected through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content herein.

[0070] "A, B and C at least one of" and "A, B or C at least one of" have the same meaning, which includes the following combinations of A, B and C: only A, only B, only C, combination of A and B, combination of A and C, combination of B and C, and combination of A, B and C.

[0071] The use of "adapted for" or "configured for" herein means open and inclusive language that does not exclude devices adapted for or configured for performing additional tasks or steps.

[0072] As used herein, "about," "approximately," or "around" includes the recited value and the average value within an acceptable range of deviation from the particular value, as determined by one of ordinary skill in the art taking into account the measurement being discussed and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0073] As used herein, "parallel," "perpendicular," "equal" includes the recited condition and conditions that approximate the recited condition, the approximation being within an acceptable range of deviation, as determined by one of ordinary skill in the art taking into account the measurement being discussed and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and near parallel, where near parallel can have an acceptable range of deviation of, for example, within 5°; "perpendicular" includes absolute perpendicular and near perpendicular, where near perpendicular can also have an acceptable range of deviation of, for example, within 5°. "Equal" includes absolute equality and near equality, where near equality can have an acceptable range of deviation of, for example, less than or equal to 5% of either of the two quantities being compared.

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

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

[0076] 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 connected in sequence form a refrigerant circuit, the refrigerant circulates in the refrigerant circuit, and the outdoor heat exchanger and the indoor heat exchanger respectively exchange heat with air to realize the cooling mode or the heating mode of the air conditioner.

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

[0078] 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 pressure reduction evaporates by absorbing the heat of the outdoor air through the outdoor heat exchanger.

[0079] 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.

[0080] 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.

[0081] The throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger, and is used to adjust the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger to adjust the flow rate of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger. 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.

[0082] In some embodiments, 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.

[0083] The indoor heat exchanger is configured to exchange heat between the indoor air and the refrigerant transferred in the indoor heat exchanger. In some embodiments, the indoor heat exchanger can include heat exchange fins to expand the contact area between the indoor air and the refrigerant transferred in the indoor heat exchanger, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0084] The heat exchange fan is configured to suck the indoor air into the indoor unit and send the indoor air after heat exchange with the indoor heat exchanger to the indoor, and the heat exchange fan provides power for the flow of the indoor air.

[0085] 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, etc. The control device is connected with the compressor, the throttling device, the motor driving the outdoor fan to rotate, and the common motor driving the heat exchange fan to rotate through data lines to transmit communication information.

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

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

[0088] Most of the wall-mounted air conditioners are currently limited by volume and weight, and the functions that can be achieved are relatively limited, and usually only indoor air can be cooled or heated. If the user feels that the indoor air is relatively dirty and stuffy after turning on the air conditioner for a long time, it is necessary to open the window for ventilation, which is not only troublesome to operate, but also the indoor cold air or warm air will quickly flow out of the window during the opening of the window, affecting the comfort of people.

[0089] Some wall-mounted air conditioners in the related art are configured with a heat exchange fan, a fresh air fan, and an exhaust fan. The heat exchange fan is used to exchange heat between air inside the air conditioner and the indoor space. The fresh air fan inhales fresh air from the outside, and the exhaust fan exhausts indoor air. However, in this process, the fresh air discharged from the fresh air outlet is easily sucked into the machine again through other air inlets, resulting in poor ventilation effect, and thus there is room for improvement.

[0090] To solve the above problems, some embodiments of the utility model provide a wall-mounted air conditioner. By controlling the distance between the heat exchange air inlet and the first fresh air outlet, the air discharged from the first fresh air outlet can be diffused into the room in time, and most of the fresh air discharged from the first fresh air outlet can be reduced as much as possible, so that the air flow short circuit occurs through the heat exchange air inlet into the volute tongue air duct, which is beneficial to improve the ventilation effect of the wall-mounted air conditioner.

[0091] For example, the wall-mounted air conditioner is a kind of indoor unit. The wall-mounted air conditioner is usually installed on the wall, for example, can be installed in the upper region of the indoor wall.

[0092] The following will be described in detail Figures 1-18 The wall-mounted air conditioner 10000 according to the embodiments of the present application is described in detail.

[0093] Referring to Figure 1 and Figure 2According to the wall-mounted air conditioner 10000, the main body 1000 comprises a shell 1, an accommodation cavity V1 is formed in the shell 1, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed in the shell 1. The shell 1 can play a protective role and constitute the overall appearance structure of the wall-mounted air conditioner 10000.

[0094] Generally, the shell 1 is a long strip-shaped shell body, and the length direction of the shell 1 is arranged along the horizontal direction, that is, the shell 1 is arranged along the transverse direction on the wall. In actual products, in order to discharge condensate water, the shell 1 in some embodiments is arranged along the transverse direction on the wall and forms a small angle with the horizontal plane.

[0095] With reference to Figure 2 The main body 1000 further comprises an indoor heat exchanger 2 arranged in the accommodation cavity V1. As described above, the indoor heat exchanger 2 is a loop 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 shell 1.

[0096] 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.

[0097] With reference to Figure 2 The main body 1000 further comprises a base 3 arranged in the accommodation 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 V03 is formed on the base 3, and indoor air entering the shell 1 is guided in the flow direction through the volute tongue air duct V03, so that the indoor air has a small resistance when flowing through the indoor heat exchanger 2.

[0098] With reference to Figure 2 and Figure 6 The main body 1000 further comprises a heat exchange fan 41 arranged in the volute tongue air duct V03. When the heat exchange fan 41 rotates, air can be exchanged between the inside of the air conditioner and the indoor space.

[0099] 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 increasing 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.

[0100] The heat exchange fan 41 can suck indoor air from the heat exchange air inlet 101 into the casing 1 when operating. The indoor air exchanges heat with the indoor heat exchanger 2, and the heat exchanged air is sent to the indoor space from the heat exchange air outlet 102.

[0101] Thus, the indoor environment temperature can be adjusted. The indoor heat exchanger 2 can act as an evaporator to provide a refrigeration air flow 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 air flow to the indoor space from the heat exchange air outlet 102.

[0102] 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 is sucked from the top and blown from the bottom. For example, the height direction of the main body 1000 is the up-down direction.

[0103] It can be understood that the main body 1000 is usually installed on a wall, and the main body 1000 is usually hung at a high position to avoid interfering with people's daily life. 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.

[0104] 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.

[0105] 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, and improving the appearance of the wall-mounted air conditioner 10000.

[0106] 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.

[0107] It can be understood that the side of the main body 1000 connected to the wall is usually called the back or rear side, and the side opposite to the rear side is called the front side, 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 air blowing resistance is small and the air blowing range is wide.

[0108] In some embodiments, the heat exchange air outlet 102 is located at the front side of the casing 1 and close to the bottom, for example, the heat exchange air outlet 102 is located at the front lower corner of the casing 1. In this case, the heat exchange air blown by the heat exchange air outlet 102 flows forward while flowing downward, so that the heat exchange air can be sent to a certain distance, and then the heat exchange air can sink and fall on the person or object on the ground, so that the person or object on the ground can be in the suitable indoor environment as soon as possible.

[0109] With reference to Figure 2 and Figure 6 , the wall-mounted air conditioner 10000 further comprises a common motor 42, which is arranged in the accommodating cavity V1 and located at one end of the length direction of the heat exchange fan 41. In this way, the installation and maintenance of the common motor 42 are facilitated, and the overall height and thickness of the main body 1000 do not need to be increased due to the arrangement of the common motor 42. Here, the height direction of the main body 1000 is consistent with the up-down direction, and the thickness direction of the main body 1000 is consistent with the front-rear direction.

[0110] In some embodiments, the wall-mounted air conditioner 10000 can comprise a motor support, which can be fixed on the base 3 and used to fix the common motor 42, so that the common motor 42 can be firmly installed on the main body 1000.

[0111] It can be understood that the wall-mounted air conditioner 10000 is generally in a long strip shape, the length direction of the heat exchange fan 41 is the same as the length direction of the main body 1000, and both are the left-right direction shown in Figures 1-2 .

[0112] With reference to Figures 3-5 , Figure 7 and Figure 8 , the wall-mounted air conditioner 10000 further comprises a fresh air fan 6, which is an axial-inlet and radial-outlet centrifugal fan and located at the other end of the length direction of the heat exchange fan 41, i.e., the fresh air fan 6 is located on the side of the heat exchange fan 41 away from the common motor 42.

[0113] With reference to Figures 3-5 , Figure 7 and Figure 8 , the wall-mounted air conditioner 10000 further comprises an exhaust fan 7, which is an axial-inlet and radial-outlet centrifugal fan.

[0114] 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 in the working state.

[0115] The centrifugal fan itself has the features of compact structure, large air volume, low noise, and the fan noise significantly decreases when the rotating speed decreases, so the fresh air fan 6 and the exhaust air 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.

[0116] The fresh air fan 6 and the exhaust air fan 7 both adopt centrifugal fans, and the air directions of the fresh air fan 6 and the exhaust air 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 air fan 7 takes in air along the axial direction and discharges air along the radial direction, the fresh air fan 6 and the exhaust air fan 7 take in air from two ends far 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.

[0117] In some embodiments, with reference to Figure 2 , Figure 6 , Figures 9-10 , the exhaust air fan 7 is located between the fresh air fan 6 and the heat exchange fan 41. In other words, the exhaust air 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 air fan 7 is close to the heat exchange fan 41, the inlet end of the exhaust air fan 7 is close to the inlet end of the heat exchange fan 41, and the exhaust air fan 7 can suck air from the inlet end of the heat exchange fan 41, that is, when the exhaust air fan 7 rotates, it can suck the indoor air entering the casing 1 from the heat exchange air inlet 101 to the exhaust air fan 7, so that it is not necessary to additionally open a hole in the casing 1 to separately introduce air to the exhaust air 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 air fan 7 is also large, which speeds up the exhaust efficiency.

[0118] In addition, in some embodiments, the fresh air fan 6 is arranged on the side of the exhaust air 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] In some embodiments, the common motor 42 is an outer rotor motor. In other embodiments, the common motor 42 is an inner rotor motor.

[0123] Referring to Figures 3-5 , Figure 7 and Figure 8 , the wall-mounted air conditioner 10000 further comprises a volute assembly, the volute assembly forms a fresh air air duct V01 and an exhaust air 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 air duct V01, and the exhaust air inlet 901 and the exhaust air outlet 902 are in communication with the exhaust air air duct V02.

[0124] The fresh air fan 6 is arranged in the fresh air air duct V01, and the fresh air fan 6 rotates to allow outdoor air to enter the fresh air air duct V01 from the fresh air inlet 801, and to allow the outdoor air in the fresh air 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.

[0125] Therefore, by arranging the fresh air 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.

[0126] In some embodiments, the number of fresh air outlets can be one.

[0127] 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 amount of air outflow can be increased.

[0128] In some embodiments, the number of fresh air outlets is multiple, and the multiple fresh air outlets are arranged in the same direction.

[0129] In some embodiments, the number of fresh air outlets is multiple, and the multiple fresh air outlets are arranged in different directions.

[0130] The exhaust fan 7 is arranged in the exhaust air duct V02, and the rotation of the exhaust fan 7 can make the indoor air 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 from the exhaust air outlet 902. The exhaust fan 7 is used to drive the air flow to be sucked from the exhaust air inlet 901 and discharged to the indoor from the exhaust air outlet 902. The operation of the exhaust fan 7 provides the driving force for the flow of the dirty air flow.

[0131] Therefore, by providing the exhaust air duct V02 in cooperation with the exhaust fan 7, when the air in the indoor 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 or from other rooms through doors and windows, so as to reduce the degree of dirtiness of the indoor air.

[0132] The fresh air fan 6, the exhaust fan 7 and the volute assembly constitute a bidirectional air exchange assembly, and the bidirectional air exchange assembly is arranged in the main body 1000. The bidirectional air exchange assembly can provide fresh air for the indoor and can discharge the indoor air to the outdoor.

[0133] 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.

[0134] In some embodiments, the bidirectional air exchange assembly can simultaneously operate in the fresh air mode and the exhaust mode, that is, the fresh air duct V01 and the exhaust air duct V02 can be opened at the same time, and at the same time when the dirty air flow in the indoor flows to the outdoor space, the fresh air flow from the outdoor can also enter the indoor space, and through the air flow driving combination of one in and one out, the improvement efficiency of the air flow in the indoor space can be increased, so as to timely meet the user's demand when the user urgently needs to discharge or update the indoor air.

[0135] And because the indoor air is exhausted to the outside while the outdoor fresh air is supplemented to the indoor, the indoor air amount is maintained sufficient, making it easier to suck the indoor air. For example, when there is a leakage of irritating gas (such as gas released by home decoration materials), coal gas or other gas in the indoor, the bidirectional ventilation assembly can be set to run in the fresh air mode and the exhaust air mode at the same time, to achieve rapid ventilation. Compared with the conventional fresh air structure that simply introduces fresh air, the bidirectional ventilation assembly in some embodiments has a larger purification flow per unit time, higher ventilation efficiency and better purification effect.

[0136] And when ventilating, the bidirectional ventilation assembly avoids the indoor temperature changing too rapidly like directly opening a window, to avoid causing discomfort to the indoor personnel due to the sudden rise or drop of the temperature. And because the main body 1000 is located at a higher position, the ventilation position will not cause discomfort due to being too close to the people.

[0137] In some embodiments, the bidirectional ventilation assembly can be realized by means of a valve to run in the fresh air mode and the exhaust air mode alternatively, i.e., when the bidirectional ventilation assembly is started in the fresh air mode, the exhaust air mode is stopped, at which 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 which time the fresh air duct V01 is not ventilated and the exhaust air duct V02 is ventilated.

[0138] 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, with small loss of cold energy. The indoor air is exhausted to the outdoor through the exhaust air duct V02, and by setting the exhaust air volume to be smaller than the fresh air volume, the loss of cold energy can be reduced.

[0139] 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 1000 without the bidirectional ventilation assembly, only the transverse length is increased, and the height and thickness of the main body 1000 can be substantially maintained or changed little, so that the main body 1000 has a light and thin appearance, and when hung on the wall, it will not affect the indoor space layout due to being too conspicuous, and will not be difficult to fix due to being too heavy, reducing the risk of falling off the wall. The wall-mounted air conditioner 10000 is still a light and thin model as a whole, which is not only beautiful when hung on the wall, but also has a controllable weight.

[0140] The heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 share the same motor, which can reduce the overall size, reduce the number of motors and save costs. The architecture of the wall-mounted air conditioner 10000 from right to left is: 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 between the heat exchange fan 41 and the fresh air fan 6. The heat exchange fan 41 is located on the side close to the common motor 42, the length of the heat exchange fan 41 is longer, and the heat exchange fan 41 close to the common motor 42 can make the overall dynamic balance performance of the architecture better, and the integration of the whole is high.

[0141] The heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 are driven by the same motor, which can rotate and stop at the same time, and the rotating speed is consistent. In the related art, the fresh air fan 6 is driven by a separate motor, and the exhaust fan 7 is driven by a separate motor, which can cause high cost. The mode of driving three fans to rotate by one motor can save two motors and greatly reduce the cost.

[0142] Referring to Figure 1 , Figure 2 , Figure 6 and Figure 11 , the fresh air outlet includes a first fresh air outlet 802, the first fresh air outlet 802 is in communication with the fresh air duct V01, and the first fresh air outlet 802 is located at the top of the main body 1000. The fresh air fan 6 rotates to make the outdoor air enter the fresh air duct V01 from the fresh air inlet 801, and the outdoor air in the fresh air duct V01 is guided to flow upwards to the indoor air from the first fresh air outlet 802.

[0143] The heat exchange inlet 101 is located at the top of the main body 1000 to guide the indoor air to flow downwards into the volute tongue duct V03. The heat exchange fan 41 rotates to guide the indoor air to enter the volute tongue duct V03 from the heat exchange inlet 101 downwards, and the indoor air in the volute tongue duct V03 is discharged to the indoor air from the heat exchange outlet 102.

[0144] Referring to Figure 11 , the heat exchange inlet 101 and the first fresh air outlet 802 are arranged at intervals in the length direction of the main body 1000, and the distance L1 between them is greater than 50mm. For example, the distance L1 between the heat exchange inlet 101 and the first fresh air outlet 802 can be 50mm, 60mm, 70mm, 80mm, etc.

[0145] According to the wall-mounted air conditioner 10000 provided in the embodiments of the present application, by limiting the distance between the heat exchange air inlet 101 and the first fresh air outlet 802 to the range, the air discharged from the first fresh air outlet 802 can be diffused to the indoor space in time, and most of the fresh air discharged from the first fresh air outlet 802 can enter the volute tongue air duct V03 through the heat exchange air inlet 101, so that the air flow short circuit occurs, which is beneficial to improve the ventilation effect of the wall-mounted air conditioner 10000, thereby improving the user experience.

[0146] With reference to Figures 1-5 , Figure 11 In some embodiments of the present application, the number of the first fresh air outlets 802 is at least two, and the at least two first fresh air outlets 802 are arranged in the front-rear direction of the main body 1000. In this way, the amount of fresh air entering the indoor space can be increased, which is beneficial to improve the ventilation effect.

[0147] With reference to Figures 6-7 In some embodiments of the present application, the number of the first fresh air outlets 802 is one.

[0148] With reference to Figures 2-8 In some embodiments of the present application, the fresh air outlet further comprises a second fresh air outlet 808, the second fresh air outlet 808 is in communication with the fresh air duct V01, and the second fresh air outlet 808 is located below the main body 1000. The fresh air fan 6 can rotate to make the outdoor air enter the fresh air duct V01 through the fresh air inlet 801, and can guide the outdoor air entering the fresh air duct V01 to flow to the indoor space in front and downward through the second fresh air outlet 808. In this way, the air blown out from the second fresh air outlet 808 can directly blow to the user.

[0149] In some embodiments of the present application, the second fresh air outlet 808 can discharge air to the indoor space through the heat exchange air outlet 102, so that it is not necessary to re-open the cabinet air outlet, thereby simplifying the processing technology of the cabinet 1. Moreover, the air outlet area of the second fresh air outlet 808 is overlapped with the air outlet area of the heat exchange air outlet 102, which is beneficial to mix the fresh air and the indoor air after heat exchange. On the one hand, the uniformity of the mixed fresh air in the indoor air is improved, 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.

[0150] In some embodiments of the present application, the cabinet 1 is provided with a cabinet air outlet, the cabinet air outlet is spaced apart from the heat exchange air outlet 102, and the second fresh air outlet 808 can discharge air to the indoor space through the cabinet air outlet. The cabinet air outlet can be correspondingly arranged below the cabinet 1.

[0151] 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 position of the casing 1, so that the second fresh air outlet 808 blows out fresh air from below, so that the fresh air outlet of the casing and the heat exchange air outlet 102 are close or even partially overlapped, which is beneficial to the mixing of fresh air and indoor air after heat exchange, on the one hand, to improve 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, and the blowing comfort is improved.

[0152] The second fresh air outlet 808 is opposite to the air inlet direction of the heat exchange air inlet 101, and the fresh air blown out at the second fresh air outlet 808 cannot be sucked into the heat exchange air inlet 101, so that the proportion of the fresh air inlet at the heat exchange air inlet 101 is reduced, the total air volume of the wall-mounted air conditioner 10000 is large, and the overall circulation efficiency of the indoor air is improved.

[0153] The second fresh air outlet 808 is located below the main body 1000 and close to the space where people move, which 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 observation of people.

[0154] When the second fresh air outlet 808 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 sufficient distance.

[0155] 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 air outlet direction of the fresh air.

[0156] In some embodiments of the present application, as shown in Figures 3-4 , Figures 7-8 The exhaust air outlet 902 of the exhaust air duct V02 and the second fresh air outlet 808 of the fresh air duct V01 are arranged in a staggered manner on the outer periphery of the bidirectional air exchange assembly, which is convenient for connecting the exhaust air outlet pipe and the fresh air inlet pipe at the exhaust air outlet 902 and the fresh air inlet 801 respectively, avoids interference caused by the close distance between the two pipe joints, and also makes the flow paths of the fresh air and the exhaust air in the bidirectional air exchange assembly not cross.

[0157] In some embodiments, the air outlet direction of the exhaust air outlet 902 is downward, and the air outlet direction of the second fresh air outlet 808 is forward. In this way, the pipe connection positions of the exhaust air outlet 902 and the second fresh air outlet 808 are directly staggered, the downward air outlet direction of the exhaust air outlet 902 is convenient for connecting the exhaust air outlet pipe and is convenient for arranging the exhaust air outlet pipe close to the wall. The forward air outlet direction of the second fresh air outlet 808 can send the fresh air forward, so that the fresh air supply range is larger.

[0158] For example, the air outlet 902 is located at the rear side of the volute assembly, and the air outlet direction of the air outlet 902 is downward. In this way, when the air outlet 902 is connected with the air outlet pipe, the air outlet pipe does not excessively lengthen the wall-mounted air conditioner 10000, and the air outlet 902 is left on the wall-adjacent side of the volute assembly, which facilitates the formation of the main body 1000 into a rear-wide and front-narrow shape.

[0159] When the main body 1000 is formed into a rear-wide and front-narrow shape, the wider back is installed against the wall, and the narrower front is observed by people, which is beneficial to produce 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 oppression caused by the wall-mounted air conditioner 10000 can be reduced.

[0160] In some embodiments, the air outlet direction of the second fresh air outlet 808 is downward and inclined forward. In this way, the wall-mounted air conditioner 10000 can send fresh air forward, which ensures that the fresh air can reach the ground and can be sent to a sufficient distance.

[0161] For example, the second fresh air outlet 808 is located at the front side of the air outlet 902, so that the second fresh air outlet 808 and the air outlet 902 are staggered at a greater distance, which is more beneficial to reduce mutual interference and facilitate pipe connection.

[0162] In some embodiments, in the height direction of the main body 1000, the fresh air inlet 801 is located below the main body 1000, and in the length direction of the heat exchange fan 41, the second fresh air outlet 808 is located between the fresh air inlet 801 and the air outlet 902. In this way, the fresh air inlet 801, the second fresh air outlet 808, the air outlet 902, and the pipe connection position are compact, which is beneficial to reduce the overall size.

[0163] In some embodiments of the present application, the first communication air duct V04 is formed between the heat exchange air inlet 101 and the exhaust air inlet 901, the exhaust air fan 7 is rotated to drive indoor air to enter the first communication air duct V04 from the heat exchange air inlet 101, and the indoor air enters the exhaust air duct V02 through the exhaust air inlet 901. That is, the heat exchange air inlet 101 and the exhaust air inlet 901 do not need to be connected with an entity pipe, and only rely on air pressure to suck air flow from the top.

[0164] In some embodiments of the present application, the distance between the exhaust air inlet 901 and the first fresh air outlet 802 in the length direction of the main body 1000 is greater than 50 mm. For example, the distance between the exhaust air inlet 901 and the first fresh air outlet 802 in the length direction of the main body 1000 can be 50 mm, 60 mm, 70 mm, 80 mm, etc.

[0165] Therefore, by limiting the distance between the exhaust air inlet 901 and the first fresh air outlet 802 in the length direction of the main body 1000 to the above range, the air discharged from the first fresh air outlet 802 can be diffused to the indoor in time, and the majority of the fresh air discharged from the first fresh air outlet 802 is as much as possible to enter the exhaust air duct V02 through the exhaust air inlet 901, and air flow short circuit occurs, so that the ventilation effect can be improved.

[0166] With reference to Figure 12 and Figure 13 In some embodiments of the present application, the top of the cabinet 1 has an indoor air outlet area 105 and an annular coaming 106, the annular coaming 106 is arranged around the indoor air outlet area 105, and the structure forming the first fresh air outlet 802 in the volute assembly is sleeved and sealed with the annular coaming 106. The outdoor air discharged from the first fresh air outlet 802 enters the indoor through the indoor air outlet area 105.

[0167] For example, the number of first fresh air outlets 802 can be one, and the annular coaming 106 can be sleeved on the outside of the structure forming the first fresh air outlet 802 in the volute assembly, so that the air discharged from the first fresh air outlet 802 can be discharged to the indoor through the indoor air outlet area 105, preventing the air discharged from the first fresh air outlet 802 from leaking into the cabinet 1, thereby entering the exhaust air duct V02 through the exhaust air inlet 901, and air flow short circuit occurs.

[0168] For example, the number of first fresh air outlets 802 can be one, and the annular coaming 106 can be sleeved on the outside of the structure forming the first fresh air outlet 802 in the volute assembly, so that the air discharged from the first fresh air outlet 802 can be discharged to the indoor through the indoor air outlet area 105, preventing the air discharged from the first fresh air outlet 802 from leaking into the cabinet 1, thereby entering the exhaust air duct V02 through the exhaust air inlet 901, and air flow short circuit occurs.

[0169] Therefore, in the above technical solution, by arranging the indoor air outlet area 105 and the annular coaming 106 on the top of the cabinet 1, the structure forming the first fresh air outlet 802 in the volute assembly is sleeved and sealed with the annular coaming 106, so that the fresh air discharged from the first fresh air outlet 802 can be discharged to the outside of the cabinet 1, instead of leaking into the cabinet 1, and air flow short circuit occurs through the exhaust air inlet 901 into the exhaust air duct V02.

[0170] In some embodiments of the present application, with reference to Figure 6 , Figures 14-15The wall-mounted air conditioner 10000 further comprises an end plate 31 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, and the end plate 31 is used to mount the indoor heat exchanger 2 on the base 3.

[0171] The exhaust air inlet 901 is located at one side of the volute assembly facing the indoor heat exchanger 2, and the axial direction of the exhaust air inlet 901 faces the indoor heat exchanger 2, and a gap is arranged between the end plate 31 and the volute assembly, and the gap is used to form a channel for the indoor air to pass from the heat exchange air inlet 101 to the exhaust air inlet 901.

[0172] Specifically, when the exhaust fan 7 rotates, the indoor air can be sucked into the casing 1 through the heat exchange air inlet 101, and at least part of the indoor air in the casing 1 can enter the exhaust air inlet 901 through the gap, and then enter the exhaust air duct V02.

[0173] 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 fan 7 is a side air inlet centrifugal fan, and this air inlet mode requires that the air inlet side has a certain air inlet gap to reduce the air inlet resistance. By arranging the exhaust fan 7 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.

[0174] Referring to Figure 15 In some embodiments of the present application, the distance L2 between the end plate 31 and the volute assembly in the length direction of the main body 1000 is less than 5 mm. For example, the distance L2 between the end plate 31 and the volute assembly in the length direction of the main body 1000 can be 4 mm, 3 mm, 2 mm, 1 mm, etc.

[0175] Therefore, by controlling the distance L2 between the end plate 31 and the volute assembly in the length direction of the main body 1000, on the one hand, the overall length of the wall-mounted air conditioner 10000 can be reduced, and on the other hand, the distance between the heat exchange air inlet 101 and the exhaust air inlet 901 can be reduced, so that part of the air entering the casing 1 from the heat exchange air inlet 101 can enter the exhaust air duct V02 from the exhaust air inlet 901, and / or part of the air at the space where the heat exchange fan 41 is located can enter the exhaust air duct V02 from the exhaust air inlet 901, thereby reducing the occurrence of air flow short circuit and improving the exhaust efficiency of the exhaust fan 7.

[0176] In some embodiments of the present application, the wall-mounted air conditioner 10000 further comprises a heat exchanger outlet pipe connected to one end of the indoor heat exchanger 2 facing the common motor 42.

[0177] In the length direction of the main body 1000, the common motor 42 at least partially overlaps with the heat exchanger outlet pipe. 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.

[0178] Referring to Figure 14 and Figure 16 In some embodiments of the present application, the base 3 has a recessed cavity V05 on the side away from the volute air duct V03, and the recessed cavity V05 is in communication with the indoor. The end plate 31 is provided with a wind passing hole 311 that is in communication with the air exhaust inlet 901 and the recessed cavity V05.

[0179] In this way, the indoor air in the recessed cavity V05 can pass through the wind passing hole 311, flow between the volute assembly and the end plate 31, and then enter the air exhaust duct V02 through the air exhaust inlet 901, which is equivalent to adding an air exhaust inlet structure. Since the recessed cavity V05 is far away from the air exhaust outlet 902, the first fresh air outlet 802, and other air outlet structures, air short circuiting can be prevented, and the air at the back of the cabinet 1 can pass through the end plate 31 on the base 3, enter the air exhaust duct V02 through the air exhaust inlet 901, and improve the air exhaust efficiency.

[0180] In some embodiments of the present application, in the height direction of the main body 1000, the fresh air inlet 801 and the air exhaust outlet 902 are both located below the main body 1000.

[0181] The fresh air inlet 801 is used to connect a fresh air inlet pipe (not shown in the figure), and the air exhaust outlet 902 is used to connect an air exhaust outlet pipe (not shown in the figure). The fresh air inlet pipe and the air exhaust outlet pipe are at least partially arranged in the recessed cavity V05. By arranging the recessed cavity V05, the fresh air inlet pipe, the air exhaust outlet pipe, and other structures can be accommodated, the space utilization inside the cabinet 1 is improved, and the structure is more compact.

[0182] In some embodiments, as shown in Figure 1 The fresh air inlet pipe is connected to the fresh air inlet 801 from below the main body 1000, is bent and extends horizontally, is then stretched out of the pipe avoiding opening 104 on the side wall of the cabinet 1, and is then stretched to the outside. The air exhaust outlet pipe is connected to the air exhaust outlet 902 from below the main body 1000, is bent and extends horizontally, is then stretched out of the pipe avoiding opening 104 on the side wall of the cabinet 1, and is then stretched to the outside.

[0183] The fresh air inlet pipe and the air exhaust outlet pipe are two independent pipes, which can separate the fresh air flow path and the air exhaust flow path, and there is no cross flow between them, reducing the risk of air leakage caused by cross flow.

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

[0185] The guide pipe avoiding opening 104 is arranged on the side wall of the shell 1, and then the fresh air introduction pipe and the exhaust air introduction pipe are transversely arranged and then introduced out, so that at least one of the fresh air introduction pipe and the exhaust air introduction pipe is arranged in parallel with the drain pipe and the refrigerant pipe. In this way, the plurality of pipes arranged in parallel are covered by the outer beam pipe or the beam belt, so that the plurality of pipes are in the appearance of one pipe, thereby reducing the number of connected pipes on the wall-mounted air conditioner 10000 after installation and simplifying the appearance, which facilitates assembly and avoids the risk of collision of the plurality of pipes.

[0186] In some embodiments of the present application, 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 rotating.

[0187] The wall-mounted air conditioner 10000 further includes a transmission shaft 43, which 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 rotate synchronously 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, thereby saving the cost due to the reduced number of motors.

[0188] In some embodiments of the present application, referring to Figure 6 , Figure 9 and Figure 10 , the output shaft 421 is coaxially arranged with the transmission shaft 43.

[0189] In some embodiments of the present application, the transmission shaft 43 is adapted to be formed as 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.

[0190] For example, the transmission shaft 43 is formed as 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 fixedly welded or integrally injection molded. 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 matched or interference fitted 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.

[0191] For example, the transmission shaft 43 and the exhaust fan 7 are formed as an integral piece, and the heat exchange fan 41 and the fresh air fan 6 are fixedly installed on the transmission shaft 43. The transmission shaft 43 and the exhaust fan 7 can be fixed by welding or can be an integral injection molding piece. The heat exchange fan 41 and the transmission shaft 43 can be non-circular surface matched or interference fitted to prevent relative rotation between the heat exchange fan 41 and the transmission shaft 43.

[0192] For example, the transmission shaft 43 and the fresh air fan 6 are formed as an integral piece, and the exhaust fan 7 and the heat exchange fan 41 are fixedly installed on the transmission shaft 43. The transmission shaft 43 and the fresh air fan 6 can be fixed by welding or can be an integral injection molding piece. The exhaust fan 7 and the transmission shaft 43, and the heat exchange fan 41 and the transmission shaft 43 can be non-circular surface matched or interference fitted to prevent relative rotation between the exhaust fan 7 and the transmission shaft 43, and between the heat exchange fan 41 and the transmission shaft 43.

[0193] In some embodiments of the present application, as shown in Figure 6 , Figure 9 In some embodiments of the present application, as shown in ,

[0194] The common motor 42, the heat exchange fan 41, the transmission shaft 43, the exhaust fan 7, and the fresh air fan 6 form a one-shaft three-fan structure. By providing the first bearing 132, the stability of the one-shaft three-fan structure is improved, and the runout of the one-shaft three-fan structure is reduced.

[0195] In some embodiments of the present application, as shown in Figure 10 ,

[0196] Therefore, by providing the second bearing 133, the stability of the one-shaft three-fan structure is further improved, and the runout of the one-shaft three-fan structure is 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 produce a large runout, which will affect the air volume and generate noise. In order to solve this problem, the second bearing 133 is provided between the exhaust fan 7 and the fresh air fan 6 to support the transmission shaft 43. 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.

[0197] In some embodiments of the present application, with reference to Figures 3-5 , Figure 17 , and Figures 7-8 , Figure 18 , the volute assembly comprises a first volute half 81 and an exhaust volute half 9, the exhaust volute half 9 is 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.

[0198] The volute assembly further comprises a common volute 12, the common volute 12 comprises: a fresh air volute part 121, the fresh air volute part 121 is detachably connected with the first volute half 81, the fresh air volute part 121 forms a part of the fresh air duct V01 in the first volute half 81.

[0199] The common volute 12 comprises: an exhaust volute part 122, the exhaust volute part 122 is detachably connected with the exhaust volute half 9, the exhaust volute part 122 forms the exhaust air duct V02 in the exhaust volute half 9.

[0200] In some embodiments, with reference to Figures 3-5 , Figure 17 , and Figures 7-8 , Figure 18 , the fresh air volute part 121 and the exhaust 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 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 volute half 9 are installed on the base 3, 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 fan 7 is located in the exhaust volute half 9, and finally the common volute 12 is covered above the exhaust fan 7 and the fresh air fan 6, the fresh air volute part 121 is connected and fixed with the first volute half 81 by fasteners, and the exhaust volute part 122 is connected and fixed with the exhaust volute half 9 by fasteners.

[0201] In some embodiments, the fresh air volute part 121 and the exhaust air volute part 122 can be separate parts. 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 3, 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 and the exhaust air fan 7 is located in the exhaust air volute half 9, and finally the fresh air volute part 121 is connected and fixed with the first volute half 81 by fasteners and the exhaust air volute part 122 is connected and fixed with the exhaust air volute half 9 by fasteners, so that the fresh air volute part 121 covers the fresh air fan 6 and the exhaust air volute part 122 covers the exhaust air fan 7.

[0202] Optionally, the fasteners can be bolts, screws or the like, which can firmly connect two parts.

[0203] 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.

[0204] 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 first volute half 81 enclose the exhaust air outlet 902.

[0205] In some embodiments, as shown in Figures 3-4 , Figure 7 As shown in FIGS. 1, 2 and 3, a part of the exhaust air inlet 901 is formed on the exhaust air volute half 9 and another part of the exhaust air inlet 901 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 fan 7 inhales air from the exhaust air inlet 901, which is beneficial to ensure the exhaust air inflow. When the exhaust air inflow is easy, a smaller exhaust air fan 7 can be selected to further reduce the size of the bidirectional air exchange assembly.

[0206] 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 inflow 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 inflow at the exhaust air inlet 901 is sufficient.

[0207] The exhaust fan 7 and the fresh air fan 6 are on the same side of the heat exchange fan 41. The exhaust 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 fan 7 and the fresh air fan 6 can simultaneously serve as the volute side walls of the exhaust fan 7 and the fresh air fan 6. For example, the plates of the fresh air volute portion 121 and the first volute half 81 along the vertical direction can serve as the volute side walls shared by the exhaust fan 7 and the fresh air fan 6, so that one part is saved, and the overall integrity is better.

[0208] In some embodiments, in combination with Figure 6 and Figure 15 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 driven by the rotation of the exhaust fan 7 to enter the first communication air duct V04 from the heat exchange air inlet 101, and the indoor air enters the exhaust air duct V02 through the exhaust air inlet 901.

[0209] That is, no entity pipeline is needed to connect the heat exchange air inlet 101 and the exhaust air inlet 901, and the airflow is only sucked from the top by the air pressure.

[0210] In some embodiments of the present application, in combination with Figures 3-5 , Figure 17 and Figures 7-8 , Figure 18 The volute assembly further includes a second volute 82. The second volute 82 is located on the side of the first volute half 81 and the common volute 12 away from the heat exchange fan 41, and the second volute 82 is detachably connected with the first volute half 81 and the common volute 12.

[0211] The second volute 82, the first volute half 81, and the common volute 12 together define a communication fresh air cavity V012 and a volute cavity V011. The fresh air inlet 801 is in communication with the fresh air cavity V012, the volute cavity V011 is in communication with the fresh air outlet, and the fresh air fan 6 is located in the volute cavity V011.

[0212] The second volute 82 can be used to form the fresh air cavity V012 and the volute cavity V011 in cooperation with the first volute half 81 and the common volute 12, so as to form the fresh air duct V01. Through cooperation of the fresh air duct V01 and the fresh air fan 6, when the indoor air 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 airflow environment in the room.

[0213] In some embodiments of the present application, in combination with Figures 3-5 , Figure 17The second volute 82 comprises a fan cover 822 located on the side of the first volute half 81 and the common volute 82 away from the heat exchange fan 41, and the fan cover 822 is adapted to define a fresh air cavity V012, and the fresh air inlet 801 is formed on the fan cover 822.

[0214] In some embodiments of the present application, the fan cover 822 is open towards one end of the first volute half 81 and the common volute 82, the first volute half 81 and the common volute 82 are open towards one end of the fan cover 822, and the open end of the fan cover 822 is connected with the open end of the first volute half 81 and the open end of the common volute 82 to jointly define the fresh air cavity V012 and the volute cavity V011, and the fresh air cavity V012 and the volute cavity V011 are directly communicated without a protective net or other structure therebetween.

[0215] The fan cover 822 and the fresh air volute part 121 enclose the first fresh air outlet 802, and the fan cover 822 and the first volute half 81 enclose the second fresh air outlet 808.

[0216] By dividing the volute assembly into the first volute half 81, the fan cover 822, the exhaust volute half 9 and the common volute 12 for separate processing, the manufacturing and assembly difficulty can be reduced, and the quality control can be facilitated after the complex shell is manufactured in parts. The fan cover 822 and the first volute half 81 are detachably connected, the fan cover 822 and the common volute 82 are detachably connected, the first volute half 81 and the exhaust volute half 9 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 assembly is facilitated, and subsequent adjustment and maintenance are facilitated.

[0217] In some embodiments of the present application, referring to Figures 7-8 , Figure 18 The second volute 82 comprises a second volute half 821 located between the first volute half 81 and the fan cover 822 and between the common volute 12 and the fan cover 822, and the second volute half 821 is detachably connected with the first volute half 81, the common volute 12 and the fan cover 822.

[0218] The second volute half 821 and the fan cover 822 form the fresh air cavity V012 therebetween, the second volute half 821, the fresh air volute part 121 and the first volute half 81 form the volute cavity V011 therebetween, the second volute half 821 is provided with an axial air vent 8211, and the axial air vent 8211 communicates the fresh air cavity V012 and the volute cavity V011.

[0219] By dividing 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 assembly difficulty can be reduced, and the quality control of the complex shell after being manufactured in parts is facilitated. 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, which facilitates the assembly and subsequent adjustment and maintenance.

[0220] It can be understood that the detachable connection between the two parts can be achieved by fasteners or buckle structures.

[0221] Figure 17 and Figure 18 As shown in FIG. 8, the fresh air fan 6 is arranged 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. 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, the outer diameter of the fresh air fan 6 is larger than that of the heat exchange fan 41, and the thickness 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 of the fresh air volute curve, resulting in a reduction in the air volume discharged from the second fresh air outlet 808. Therefore, by arranging the first fresh air outlet 802 above the fresh air fan 6, the air volume discharged from the fresh air volute is increased, and the defect of the reduction in the air volume due to the limitation of the position of the fresh air fan 6 is compensated.

[0222] 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 greatly reduces 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 blow out from the two fresh air outlets, and the air volume is increased.

[0223] That is, compared with the volute assembly provided with only the second fresh air outlet 808, the volute assembly of the present application is provided with the second fresh air outlet 808 and the first fresh air outlet 802, so that the air volume is larger.

[0224] In some embodiments, the exhaust fan 7 may be a plastic component, thus being lightweight and low-cost. In some embodiments, the exhaust fan 7 may also be a resin component, a metal component, or the like.

[0225] In some embodiments, the fresh air fan 6 may be made of plastic, thus being lightweight and low-cost. In some embodiments, the fresh air fan 6 may also be made of resin, metal, or the like.

[0226] Similarly, the exhaust volute half 9 can be made of plastic, thus being lightweight and low-cost. For example, the exhaust volute half 9 can be an injection-molded part. In some embodiments, the exhaust volute half 9 can also be made of resin, metal, etc.

[0227] The first volute half 81 can be made of plastic, thus being lightweight and low-cost. For example, the first volute half 81 can be an injection-molded part. In some embodiments, the first volute half 81 can also be a resin part, a metal part, etc.

[0228] The common volute 12 can be made of plastic, thus being lightweight and low-cost. For example, the common volute 12 can be an injection-molded part. In some embodiments, the common volute 12 can also be made of resin, metal, etc.

[0229] The second volute 82 can be made of plastic, thus being lightweight and low-cost. For example, the second volute 82 can be an injection-molded part. In some embodiments, the second volute 82 can also be a resin part, a metal part, etc.

[0230] In some embodiments of this application, reference is made to Figures 3-4 , Figures 7-8 The wall-mounted air conditioner 10000 also includes a purification component 11, which is installed in the fresh air duct V01 to purify the fresh air blown into the room and improve the cleanliness of the indoor air.

[0231] For example, the purification component 11 is installed inside the fresh air cavity, located at the axial air inlet end of the fresh air fan 6. The purification component 11 is connected to the second volute 82, which facilitates the assembly of the purification component 11 and prevents it from interfering with the fresh air fan 6. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air cavity through the fresh air inlet 801, and allows the outdoor air entering the fresh air cavity to pass through the purification component 11, then enter the volute cavity V011, and enter the room through the fresh air outlet.

[0232] In this way, the fresh airflow can blow almost vertically over the purification component 11, further reducing the consumption of fresh air intake and thus increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in cooling mode, causing condensation to form in the fresh air, the condensation can remain on the purification component 11 as the air flows through it, further preventing water from being blown out when the fresh air device is venting.

[0233] 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 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.

[0234] In some embodiments of the present application, the purification member 11 includes a filter screen covering the axial air vent 8211. The filter screen covers the entire air inlet end of the fresh air fan 6, has a large coverage area and a large filtration area, and has a good filtration effect. The provision of the filter screen helps to ensure sufficient contact area with the airflow, and has a light weight and low air flow noise. For example, the filter screen is a Hypalon screen, which has strong adsorption force and strong dust filtration effect on the air.

[0235] In some embodiments of the present application, the filter screen is plate-shaped, so that the overall filter screen is relatively thin and does not occupy too much space when placed in the bidirectional ventilation assembly.

[0236] In some embodiments of the present application, the filter screen is square-shaped, which facilitates positioning and installation of the filter screen.

[0237] 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, does not easily shake after being fixed, and is easy to process with less waste. By making the side length of the filter screen greater than the diameter of the axial air vent 8211, all fresh air flowing into the axial air vent 8211 can flow through the filter screen, thereby achieving high filtration cleanliness.

[0238] In some embodiments of the present application, with reference to Figure 5 , a portion of the fresh air cavity 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.

[0239] For example, the purification member 11 is arranged at a position close to the fresh air fan 6 in the fresh air cavity, and the portion of the fresh air cavity away from the fresh air fan 6 is the empty cavity V0121, i.e. the space between the face of the purification member 11 and the inner surface of the fan cover 822 is the empty cavity V0121. In this way, the empty cavity V0121 is in a negative pressure state when the fresh air fan 6 is running, so that the airflow can automatically flow into the empty cavity V0121 from the fresh air inlet 801, thereby reducing the air flow resistance.

[0240] The empty cavity V0121 corresponds to the air inlet negative pressure cavity of the fresh air fan 6, and the provision of the air inlet negative pressure cavity has many advantages:

[0241] I. Increase the efficiency of the air inlet. For example, by setting a negative pressure cavity to increase the buffer space of the fresh air fan 6 on the air suction side, making it easier for the fresh air fan 6 to suck air, thereby increasing the air inlet amount of the fresh air fan 6. Moreover, the presence 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, reducing the fluctuation and turbulence of the fresh air flow, which is conducive to improving the air inlet stability of the fresh air fan 6. If there is no cavity V0121 and no buffer space, the flow resistance will increase, and the operating power consumption of the fresh air fan 6 will rise.

[0242] II. Optimize air flow distribution. For example, through the buffering and guiding of the negative pressure cavity, it is conducive to guiding the air flow to be sucked into the fresh air fan 6 along the axial direction.

[0243] III. Reduce air flow impact and absorb noise.

[0244] In this way, while increasing the air inlet amount of the fresh air device, the overall air inlet reliability and stability are improved.

[0245] In some embodiments of the present application, as shown in Figures 2-3 , Figure 6 , Figures 17-18 , the fan cover 822 is also provided with a mounting port 803, and the purification element 11 is detachably assembled in the fresh air cavity through the mounting port 803. In this way, when the purification element 11 is damaged or saturated, the purification element 11 can be easily disassembled for maintenance or replacement.

[0246] In some embodiments of the present application, as shown in Figure 2 and Figure 6 , 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, and the purification element 11 can be disassembled without interference from the pipes connected to the fresh air inlet 801 and the exhaust air outlet 902, so that the disassembly is convenient to operate. For example, the front side of the casing 1 is provided with an openable panel 15, and when the panel 15 is opened or the panel 15 is turned upward, the mounting port 803 can be exposed, which facilitates the disassembly of the purification element 11.

[0247] It is also not excluded that in some schemes, the mounting port 803 is arranged at the bottom of the main body 1000.

[0248] In some embodiments of the present application, as shown in Figure 8 , the second volute 82 is formed with a purification air inlet 804 for communicating with the indoor, and the fresh air fan 6 can make the indoor air enter the fresh air cavity from the purification air inlet 804 to pass through the purification element 11 for purification, and can make the indoor air entering the fresh air cavity blow through the purification element 11 and then enter the volute cavity V011 and from the fresh air outlet into the indoor. In this way, the indoor air can enter the fresh air duct V01 from the purification air inlet 804, pass through the purification, and then enter the indoor from the fresh air outlet.

[0249] In this way, when the indoor air is polluted, the indoor air can be circulated and purified. In this way, the indoor air can be purified without introducing outdoor fresh air, thereby avoiding the sudden blowing of outdoor air without heat exchange, thereby avoiding the discomfort caused by the sudden change of indoor temperature.

[0250] 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 in communication with the fresh air duct V01. In this way, the indoor air entering the volute cavity V011 enters the indoor air from the first fresh air outlet 802 and the second fresh air outlet 808.

[0251] In some embodiments of the present application, the purification air inlet 804 can be in communication with the heat exchange air inlet 101, and there is no need for a connecting pipe between the purification air inlet 804 and the heat exchange air inlet 101, thereby reducing the number of parts, reducing the occupied volume, and facilitating the layout.

[0252] In some embodiments of the present application, as shown in Figure 8 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 downward, which is convenient for processing and molding. Moreover, in use, one of them 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 the switches to select one of the air inlets to be opened, thereby reducing the number of switches.

[0253] In some embodiments, as shown in Figure 8 It can be understood that 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 the air inlet direction of the purification air inlet 804 is perpendicular to the length direction of the heat exchange fan 41, the purification air inlet 804 is far away from the air outlet air inlet 901, thereby avoiding excessive air suction energy consumption caused by the close proximity of the purification air inlet 804 and the air outlet air inlet 901. Moreover, the different directions of the purification air inlet 804 and the air outlet air inlet 901 help to expand the negative pressure area, help a large amount of indoor air to flow into the negative pressure area, and ensure the air volume of the exhaust air and the indoor fresh air.

[0254] 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 with a pipe 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.

[0255] The fresh air inlet 801 is arranged below the main body 1000, and the fresh air inlet pipe can be connected to the fresh air inlet 801 from below. The connection extends in the up-down direction rather than the front-back direction, so that the main body 1000 is not too thick, and the wall-mounted air conditioner 10000 still has a thin appearance.

[0256] The part of the fresh air volute structure enclosed by the fresh air volute part 121 and the first volute half 81 for mounting the fresh air fan 6 is circular, and extends along the length direction of the heat exchange fan 41 based on the axis of the fresh air fan 6, so that there is a space at the front and rear of the bottom of the circle. The fresh air inlet 801 can be arranged in this space to connect the fresh air inlet pipe, so that the connection between the fresh air inlet pipe and the fresh air inlet 801 is in the space and does not occupy additional space, so that the height of the main body 1000 can be controlled.

[0257] In some embodiments, the exhaust air outlet 902 is below the main body 1000 in the height direction of the main body 1000. Similarly, the exhaust air outlet 902 needs to be connected to a pipe to guide indoor air to the outside, which is referred to as an exhaust air outlet pipe. The exhaust air outlet pipe can be a part of the wall-mounted air conditioner 10000, or an exhaust air outlet pipe configured by the user after purchasing the wall-mounted air conditioner 10000.

[0258] The exhaust air outlet 902 is arranged below the main body 1000, and the exhaust air outlet pipe can be connected to the exhaust air outlet 902 from below. The connection extends in the up-down direction rather than the front-back direction, so that the main body 1000 is not too thick, and the wall-mounted air conditioner 10000 still has a thin appearance.

[0259] The part of the exhaust air volute structure enclosed by the exhaust air volute part 122 and the exhaust air volute half 9 for mounting the exhaust air fan 7 is circular, and extends along the length direction of the heat exchange fan 41 based on the axis of the exhaust air fan 7, so that there is a space at the front and rear of the bottom of the circle. Moreover, based on the characteristics of the exhaust air fan 7 that air enters in the axial direction and exits in the radial direction, the diffuser section of the exhaust air volute half 9 can be arranged in the up-down direction and can be placed in the above-mentioned front or rear space. The exhaust air outlet 902 is arranged here to connect the exhaust air outlet pipe, so that the connection between the exhaust air outlet pipe and the exhaust air outlet 902 is in the space and does not occupy additional space, so that the height of the main body 1000 can be controlled.

[0260] In some embodiments of the present application, as Figure 5As shown, the fresh air fan 6 includes a fresh air impeller 61 and fresh air blades 62. The fresh air blades 62 are located on the outer edge of the fresh air impeller 61 and extend along the axial direction of the fresh air impeller 61. The total thickness of the fresh air impeller 61 and the fresh air blades 62 in the axial direction is h1. Here, the fresh air impeller 61 on the fresh air fan 6 can be a single impeller or at least two that are spaced apart along the axial direction. h1 is the maximum dimension of the fresh air fan 6 in the axial direction.

[0261] like Figure 5 As shown, the exhaust fan 7 includes an exhaust wheel 71 and exhaust blades 72. The exhaust blades 72 are located on the outer edge of the exhaust wheel 71 and extend along the axial direction of the exhaust wheel 71. The total thickness of the exhaust wheel 71 and the exhaust blades 72 in the axial direction is h2. Here, the exhaust fan 7 can have one exhaust wheel 71 or at least two that are spaced apart along the axial direction. h2 is the maximum dimension of the exhaust fan 7 in the axial direction.

[0262] Where h2 < h1. This configuration ensures that the fresh air volume is greater than the exhaust air volume while increasing the axial thickness of the main body 1000 of the fresh air fan 6, thus increasing structural strength and enabling it to withstand greater torque. Meanwhile, the exhaust fan 7 requires less air volume, and the smaller axial thickness of its main body 1000 allows for a reduction in exhaust air volume, while also decreasing the axial dimensions of the bidirectional ventilation assembly.

[0263] In some embodiments of this application, the fresh air fan 6 is a single-suction centrifugal fan with unilateral air intake. The fresh air blade 62 includes a first fresh air blade 621, which extends along the axial direction of the fresh air impeller 61 in a direction away from the exhaust fan 7. Therefore, when the fresh air fan 6 rotates, the competition of the first fresh air blade 621 for airflow in the exhaust duct VO2 can be reduced.

[0264] In some embodiments of this application, the fresh air fan 6 is a dual centrifugal fan, and the fresh air blades 62 include a first fresh air blade 621 and a second fresh air blade 622. The first fresh air blade 621 extends away from the exhaust fan 7 along the axial direction of the fresh air impeller 61, and the second fresh air blade 622 extends closer to the exhaust fan 7 along the axial direction of the fresh air impeller 61. Therefore, when the fresh air fan 6 rotates, the competition for airflow within the exhaust duct VO2 between the first fresh air blade 621 and the second fresh air blade 622 can be reduced.

[0265] In some embodiments of this application, the exhaust fan 7 is a single-suction centrifugal fan with unilateral air intake, and the exhaust blades 72 extend along the axial direction of the exhaust wheel 71 in a direction away from the fresh air fan 6. Therefore, when the exhaust fan 7 rotates, the exhaust blades 72 can reduce the competition for airflow within the fresh air duct VO1.

[0266] In some embodiments of this application, such as Figure 5 As shown, the outer diameter of the fresh air fan 6 is larger than the outer diameter of the heat exchange fan 41, thereby ensuring that the fresh air volume is not too small. For example, in one embodiment, the outer diameter of the fresh air fan 6 is 137 mm, and the outer diameter of the heat exchange fan 41 is 94 mm.

[0267] In some embodiments of this application, such as Figure 5 As shown, the outer diameter of the exhaust fan 7 is larger than the outer diameter of the heat exchange fan 41, thereby ensuring that the exhaust volume is not too small. For example, in one embodiment, the outer diameter of the exhaust fan 7 is equal to the outer diameter of the fresh air fan 6, both the outer diameter of the fresh air fan 6 and the outer diameter of the exhaust fan 7 are 137 mm, and the outer diameter of the heat exchange fan 41 is 94 mm.

[0268] In some embodiments of this application, such as Figure 17 and Figure 18 As shown, a first bearing half-hole is provided on the first volute half 81, and a second bearing half-hole is provided on the fresh air volute part 121. The first bearing half-hole and the second bearing half-hole form a second bearing hole. The outer ring of the second bearing 133 is installed in the second bearing hole, and the inner ring of the second bearing 133 is installed on the drive shaft 43.

[0269] Since the exhaust fan 7 rotates inside the exhaust volute and the fresh air fan 6 rotates inside the fresh air volute, if the dynamic balance of the fans is poor, the gap between the fans and their corresponding volutes will be constantly changing slightly. This change will cause airflow disturbance, affecting airflow and noise. Fixing the second bearing 133 to the first volute half 81 and the fresh air volute part 121 is equivalent to fixing the gap between the fans and their corresponding volutes, which can effectively solve the problem of wind noise caused by the dynamic imbalance of the exhaust fan 7 and the fresh air fan 6.

[0270] In some embodiments of this application, the outer diameter of the fresh air fan 6 is D1, and the thickness of the main body 1000 in the front-back direction is T, where D1:T≥1:1.7 and D1:T≤1:1.3.

[0271] In some embodiments, the ratio of the outer diameter of the fresh air fan 6 to the thickness of the main body 1000 is greater than or equal to 1:1.7, i.e., D1:T ≥ 1:1.7. When D1:T < 1:1.7, the outer diameter of the fresh air fan 6 is too small, resulting in insufficient fresh air volume and poor effect in introducing fresh air into the room. By setting D1:T ≥ 1:1.7, the outer diameter of the fresh air fan 6 is not too small, the fresh air volume is not too small, and the effect of introducing fresh air into the room is better.

[0272] 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 occupies the space of the logarithmic spiral of the fresh air volute, causing the logarithmic spiral of the fresh air volute to be incomplete or unable to be designed according to the maximum fresh air volume, resulting in too small fresh air volume and poor effect of introducing fresh air into the room. In the front-rear direction of the main body 1000, the outer diameter of the fresh air fan 6 plus the limit size 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 is not too large, which does 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, thereby ensuring that the fresh air volume is not too small and the effect of introducing fresh air into the room is good.

[0273] 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.

[0274] 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, i.e., D1:T=1:1.5. The outer diameter of the fresh air fan 6 is not too small, and the fresh air volume is not too small, and the effect of introducing fresh air into the room is good. The outer diameter of the fresh air fan 6 is not too large, which does 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, thereby ensuring that the fresh air volume is not too small and the effect of introducing fresh air into the room is good.

[0275] In some embodiments of the present application, as shown in Figure 1 The wall-mounted air conditioner 10000 further includes a panel 15, one end of the panel 15 is pivotally connected to the cabinet 1, for example, the upper end of the panel 15 is pivotally connected to the cabinet 1. The panel 15 can rotate relative to the cabinet 1. When the panel 15 is turned to an open state, the purification member 11 is exposed, and the user can disassemble the filter screen in the purification member 11. When the panel 15 is turned to a closed state, the purification member 11 is blocked, at this time, the panel 15 is an appearance member, and the appearance of the wall-mounted air conditioner 10000 is neat.

[0276] In some embodiments of the present application, as shown in Figure 1As shown, the wall-mounted air conditioner 10000 further comprises a baffle 16, both ends of the baffle 16 are pivotally connected with the casing 1. The baffle 16 can rotate relative to the casing 1. When the baffle 16 is rotated to an open state, the heat exchange air outlet 102 is exposed, and air can be discharged from the heat exchange air outlet 102. When the baffle 16 is rotated to a closed state, the heat exchange air outlet 102 is shielded, preventing sundries, flying insects and the like from entering the interior of the wall-mounted air conditioner 10000 through the heat exchange air outlet 102 when the wall-mounted air conditioner 10000 is not working.

[0277] In the description of the present application, it needs to 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" and the like is the orientation or positional relationship shown in the drawings, which 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 of the present application.

[0278] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0279] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 application, 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 combine different embodiments or examples described in the present application.

[0280] 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 a limitation of 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 comprising: A main body (1000) comprising: A cabinet (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 cabinet (1); An indoor heat exchanger (2) arranged in the accommodating cavity (V1); A base (3) arranged in the accommodating cavity (V1) and having a volute tongue air duct (V03) formed thereon; A heat exchange fan (41) arranged in the volute tongue air duct (V03); Further comprising: A common motor (42) arranged in the accommodating cavity (V1) and located at one end of the heat exchange fan (41) in the length direction; A fresh air fan (6) which is an axial-inlet and radial-outlet centrifugal fan, and is located at the other end of the heat exchange fan (41) in the length direction; An exhaust air fan (7) which is an axial-inlet and radial-outlet centrifugal fan; 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 the 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 arranged 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 indoor air from the fresh air outlet; The exhaust air fan (7) is arranged 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 outdoor air from the exhaust air outlet (902); The fresh air outlet comprises a first fresh air outlet (802) which is in communication with the fresh air duct (V01) and is located at the top of the main body (1000) to guide fresh air to flow upwards to indoor air; The heat exchange air inlet (101) is located at the top of the main body (1000) to guide indoor air to flow downwards into the volute tongue air duct (V03); The heat exchange air inlet (101) and the first fresh air outlet (802) are arranged at intervals in the length direction of the main body (1000), and the distance between them is greater than 50 mm.

2. The wall-mounted air conditioner according to claim 1, wherein The heat exchange air inlet (101) and the exhaust air inlet (901) form a first communication air duct (V04), the exhaust fan (7) rotates to drive indoor air to enter the first communication air duct (V04) from the heat exchange air inlet (101), and the indoor air enters the exhaust air duct (V02) through the exhaust air inlet (901); The distance between the exhaust air inlet (901) and the first fresh air outlet (802) in the length direction of the main body (1000) is greater than 50 mm.

3. The wall-mounted air conditioner according to claim 1, wherein The top of the cabinet (1) has an indoor air outlet area (105) and an annular coaming (106), and the annular coaming (106) is arranged around the indoor air outlet area (105); The structure forming the first fresh air outlet (802) in the volute assembly is sleeved and sealingly connected with the annular coaming (106), so that the outdoor air discharged from the first fresh air outlet (802) enters the indoor air outlet area (105) and then enters the indoor.

4. The wall-mounted air conditioner according to claim 1, wherein Also includes: An end plate (31) 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), and the end plate (31) is used to install the indoor heat exchanger (2) on the base (3); Wherein, the exhaust air inlet (901) is located on the side of the volute assembly facing the indoor heat exchanger (2), and 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, which is used to form a channel for indoor air from the heat exchange air inlet (101) to the exhaust air inlet (901).

5. The wall-mounted air conditioner according to claim 4, wherein The distance between the end plate (31) and the volute assembly in the length direction of the main body (1000) is less than 5 mm.

6. The wall-mounted air conditioner according to claim 4, wherein The side of the base (3) away from the volute tongue air duct (V03) has a recessed cavity (V05), and the recessed cavity (V05) is in communication with the indoor air; Wherein, the end plate (31) is provided with a wind passing hole (311), and the wind passing hole (311) communicates the exhaust air inlet (901) and the recessed cavity (V05).

7. The wall-mounted air conditioner according to claim 6, 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); Wherein, the fresh air inlet (801) is used to connect a fresh air inlet pipe, and the exhaust air outlet (902) is used to connect an exhaust air outlet pipe, and the fresh air inlet pipe and the exhaust air outlet pipe are at least partially arranged in the recessed cavity (V05).

8. The wall-mounted air conditioner according to claim 1, wherein The common motor (42) includes an output shaft (421), and the heat exchange fan (41) is fixedly connected with the output shaft (421); The wall-mounted air conditioner further comprises: A 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).

9. The wall-mounted air conditioner according to any one of claims 1-8, characterized in that, The volute assembly comprises: A first volute half (81); An exhaust volute half (9) located on a 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), and forming 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), and forming the exhaust air duct (V02) in the exhaust volute half (9); A second volute (82) located on a side of the first volute half (81) and the common volute (12) away from the heat exchange fan (41), and detachably connected with the first volute half (81) and the common volute (12), and defining a fresh air cavity (V012) and a volute cavity (V011) in communication, the fresh air inlet (801) being in communication with the fresh air cavity (V012), the volute cavity (V011) being in communication with the fresh air outlet, and the fresh air fan (6) being located in the volute cavity (V011).

10. The wall-mounted air conditioner according to claim 9, wherein The second volute (82) comprises: A fan cover (822) located on a side of the first volute half (81) and the common volute (12) away from the heat exchange fan (41), and adapted to define the fresh air cavity (V012), and the fresh air inlet (801) being formed on the fan cover (822).

11. The wall-mounted air conditioner according to claim 10, wherein An end of the fan cover (822) facing the first volute half (81) and the common volute (12) is open, and an end of the first volute half (81) and the common volute (12) facing the fan cover (822) is open, and the open end of the fan cover (822) is connected with the open end of the first volute half (81) and the common volute (12) to define the fresh air cavity (V012) and the volute cavity (V011) together; The fan cover (822) and the fresh air volute part (121) enclose a first fresh air outlet (802), and the fan cover (822) and the first volute half (81) enclose a second fresh air outlet (808).

12. The wall-mounted air conditioner according to claim 10, wherein The second volute (82) further comprises: A second volute half (821) located between the first volute half (81) and the fan cover (822), and between the common volute (12) and the fan cover (822), and detachably connected with the first volute half (81), the common volute (12), and the fan cover (822). The second volute half (821) and the fan cover (822) form the fresh air cavity (V012), the second volute half (821), the fresh air volute part (121) and the first volute half (81) form the volute cavity (V011), and the second volute half (821) is provided with an axial air vent (8211) which communicates the fresh air cavity (V012) and the volute cavity (V011).

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