Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner, and belongs to the field of household appliances. The wall-mounted air conditioner comprises a main body, and the main body comprises a machine shell, an indoor heat exchanger, a heat exchange fan and a first motor connected with the heat exchange fan. The wall-mounted air conditioner further comprises a second motor, a fresh air fan and a fresh air shell. The second motor is an outer rotor motor and is connected with the fresh air fan to rotate synchronously. The fresh air fan is an oblique flow fan. A machine shell air outlet is formed in the top of the machine shell, and the fresh air outlet is connected with the machine shell air outlet so that outdoor air can be exhausted from the top of the main body. According to the wall-mounted air conditioner, the fresh air outlet amount is increased, and the air outlet noise is reduced. And fresh air sucked from the outside is discharged from the top of the main machine, so that the fresh air is not directly blown out, and the body feeling is softer.

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 existing fresh air air conditioners, the fresh air module is almost designed with a centrifugal fan-volute. Compared with other types of fans, the air volume of a centrifugal fan with the same diameter is relatively small, and the centrifugal fan needs a complete volute structure to guide air, and the space occupation of the volute structure is large.

[0003] However, the size of the fresh air module cannot be large due to the size limitation of the fresh air air conditioner. Therefore, under the dual restrictions of size and model, the air volume of the fresh air module using a centrifugal fan is small.

[0004] In addition, when the centrifugal fan is working, the impeller rotates at high speed to suck air from the axial direction and then throw it out along the radial direction. In this process, the airflow will impact the impeller and volute at a high speed, generating airflow impact noise. Especially when the air speed of the fan is large, the impact noise will be more obvious.

[0005] In the prior art, the research on the performance improvement of the air volume of the fresh air module is concentrated on modifying the diameter, thickness, chord length, blade type, and profile of the centrifugal fan-volute. Some designs are to improve the thickness of the air duct cavity and the air inlet cavity, or to design a flow guide scheme for the air inlet cavity and the air outlet. These improvement researches are carried out on the basis of the centrifugal fan-volute design and do not deviate from the limitations of the centrifugal fan. Moreover, the designs of the fresh air modules of various manufacturers on the market tend to be consistent, which is not conducive to meeting the diversified selection needs of users. CONTENT OF THE UTILITY MODEL

[0006] The present application aims to at least solve one of the technical problems in the related art. To this end, some embodiments of the present application propose a wall-mounted air conditioner, wherein the fresh air module of the wall-mounted air conditioner is designed with a diagonal flow fan, which is beneficial to guarantee the fresh air volume and reduce noise under the restriction of small size space, and avoids the conventional centrifugal fan, so that the fresh air module has diversified designs.

[0007] The wall-mounted air conditioner according to an embodiment of the present application comprises a main body. The main body comprises a shell, an internal space of the shell is formed with an accommodating cavity, and the shell is formed with a heat exchange air inlet and a heat exchange air outlet; an indoor heat exchanger is arranged in the accommodating cavity; a heat exchange fan is arranged in the accommodating cavity; and a first motor is arranged in the accommodating cavity and used to drive the heat exchange fan to rotate, so that air in the air conditioner exchanges heat with the indoor heat exchanger.

[0008] The wall-mounted air conditioner can comprise a second motor arranged in the accommodating cavity, the second motor being located at one end in the length direction of the main body, and the second motor being an outer rotor motor.

[0009] The second motor comprises a stator portion, a rotor portion arranged outside the stator portion in the radial direction of the stator portion, a motor shell fixedly connected with the rotor portion, and an output shaft fixedly connected with the motor shell.

[0010] The wall-mounted air conditioner can comprise a fresh air fan, which is a diagonal flow fan, and the fresh air fan is connected with the output shaft of the second motor; a fresh air shell is formed with a fresh air air duct, the fresh air fan is arranged in the fresh air shell, and the fresh air shell is formed with a fresh air inlet and a fresh air outlet; the fresh air fan rotates to allow outdoor air to enter the fresh air shell from the fresh air inlet, and the outdoor air in the fresh air shell enters indoor air from the fresh air outlet.

[0011] The top of the shell is provided with a shell air outlet, and the fresh air outlet is connected with the shell air outlet to allow outdoor air to be discharged from the top of the main body.

[0012] According to the wall-mounted air conditioner provided by the embodiment of the present application, the fresh air module comprises at least a fresh air fan, a second motor and a fresh air shell, the centrifugal fan is not used in the fresh air module, and the traditional volute structure is cancelled, and the diagonal flow fan structure is used.

[0013] In the diagonal flow fan of the fresh air module, air is sucked into the fresh air air duct and enters the fresh air fan, rotates along the fresh air blade, and generates air pressure through the constraint and guidance of the fresh air shell.

[0014] The diagonal flow fan is different from the centrifugal fan in that air is axially sucked and radially thrown out, but obtains a path of axial inlet and axial outlet. The diagonal flow fan makes the discharged air perform both centrifugal motion and axial motion, i.e., the motion of the air discharged from the fresh air outlet to the indoor air is a combination of axial flow and centrifugal motion. The axial flow of the air is beneficial to sending the air farther, and the centrifugal motion of the air is beneficial to diffusing the air to the periphery of the panel air outlet after the air is discharged, thereby expanding the air supply area. Therefore, the impact on the fresh air blade and the fresh air shell is small, the power consumption is reduced, and the noise is also reduced. The flow coefficient of the diagonal flow fan is larger than that of the centrifugal fan, and the air volume obtained by the diagonal flow fan is larger than that of the centrifugal fan.

[0015] Therefore, the fresh air outlet volume of the wall-mounted air conditioner is increased, and the air outlet noise is reduced.

[0016] In the present application, the top of the cabinet is provided with a cabinet air outlet, and the fresh air outlet is connected to the cabinet air outlet to make the outdoor air outlet from the top of the main body. The cabinet air outlet is arranged on the top wall of the cabinet, so that the fresh air is sent towards the roof, and the flow direction of the fresh air can be guided by the roof to make the fresh air flow along the roof to expand the air supply area.

[0017] Moreover, the fresh air sucked from the outdoor is outlet from the top of the main machine, so that the fresh air outlet has no direct blowing feeling, and the body feeling is more soft.

[0018] Additional aspects and advantages of the present application will be in part apparent and in part pointed out below in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the description of the embodiments, given below with reference to the following drawings, wherein:

[0020] Figure 1 is a perspective view of the main body of the wall-mounted air conditioner according to some embodiments;

[0021] Figure 2 is a perspective view of the main body of the wall-mounted air conditioner according to some embodiments;

[0022] Figure 3 is a perspective view of the main body in one direction inside according to some embodiments;

[0023] Figure 4 is a partial perspective view of the main body in another direction inside according to some embodiments;

[0024] Figure 5 is a perspective view of the fresh air module according to some embodiments;

[0025] Figure 6 is a sectional view of the fresh air module according to some embodiments.

[0026] REFERENCE NUMERALS:

[0027] wall-mounted air conditioner 10000, main body 1000,

[0028] cabinet 1, accommodating cavity V1,

[0029] heat exchange air inlet 101, heat exchange air outlet 102, guide pipe avoiding port 104, cabinet air outlet 105, second mounting port 106,

[0030] indoor heat exchanger 2, base 3, volute tongue air duct V03, heat exchange fan 41,

[0031] second motor 5, stator part 51, rotor part 52, motor shell 53, output shaft 54,

[0032] Fresh air fan 6, fresh air hub 61, fresh air blade 62, clamping block 621, fan outer cylinder 63, clamping hole 631, first air flow channel 64, first air flow inlet 641, first air flow outlet 642, first air resistance ring 65, first air resistance groove 66,

[0033] Air outlet flow guide 7, flow guide inner cylinder 71, flow guide blade 72, flow guide outer cylinder 73, second air flow channel 74, reinforcing ring 75,

[0034] Fresh air shell 8, fresh air duct V01, fresh air inlet 801, fresh air outlet 802, first mounting port 803, first shell part 81, adapter port 811, second shell part 82, second air resistance ring 83, air pipe joint 84,

[0035] Motor support 91,

[0036] Purification part 11, filter screen 111, panel 12, extension plate 13. DETAILED DESCRIPTION

[0037] Some embodiments of the present application will be described clearly and completely with reference to the drawings, obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments provided in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0038] Unless otherwise required by the context, throughout the specification and claims, the term "comprise" and other forms such as "comprises" and "comprising" are to be construed as open, inclusive meaning, i.e. "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to mean that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present application. The illustrative representation of the above terms does not necessarily mean the same embodiment or example. In addition, the specific features, structures, materials or characteristics described can be included in any one or more embodiments or examples in any appropriate manner.

[0039] Hereinafter, the terms "first", "second" are only used for description purposes, 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", "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0040] In describing some embodiments, it will be understood that the terms "connection," "coupling," and the like can be used herein. These terms are intended to be broad and not limited to direct connections. These terms are intended to include connections that are fixed, detachable, integral, direct, or indirect. The embodiments disclosed herein are not necessarily limited to the content herein.

[0041] "A, B, and C at least one of" has the same meaning as "at least one of A, B, or C," and includes the following combinations: A only, B only, C only, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.

[0042] The use of "adapted to" or "configured to" herein means open and inclusive language that does not exclude additional devices or steps.

[0043] As used herein, "about," "approximately," or "around" includes the recited value and the average value within an acceptable range of deviation from the recited value, as determined by one of ordinary skill in the art taking into account the measurement being discussed and the error associated with measuring a particular quantity (i.e., the limitations of the measurement system).

[0044] As used herein, "parallel," "perpendicular," and "equal" include the recited condition and conditions that approximate the recited condition, 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 measuring a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and near parallel, where the acceptable range of deviation for near parallel can be, for example, within 5°; "perpendicular" includes absolute perpendicular and near perpendicular, where the acceptable range of deviation for near perpendicular can also be, for example, within 5°. "Equal" includes absolute equality and near equality, where the acceptable range of deviation for near equality can be, for example, a difference between the two that is less than or equal to 5% of either.

[0045] A wall-mounted air conditioner 10000 according to some embodiments of the present application is described below with reference to the accompanying drawings.

[0046] A wall-mounted air conditioner 10000 according to some embodiments of the present application is described below with reference to the accompanying drawings. Figure 1 and Figure 2 As shown in FIGS. 1 and 2, the wall-mounted air conditioner 10000 according to some embodiments of the present application includes a main body 1000.

[0047] The main body 1000 includes a cabinet 1. As shown in FIGS. 1 and 2, Figure 2As shown, the inside of the casing 1 forms a receiving cavity V1, and the casing 1 forms a heat exchange air inlet 101 and a heat exchange air outlet 102. The casing 1 can play a protective role and constitute the overall appearance structure of the wall-mounted air conditioner 10000.

[0048] Generally, the casing 1 is a long strip-shaped casing, and the length direction of the casing 1 is arranged along the horizontal direction, that is, the casing 1 is mounted on the wall along the transverse direction. In actual products, in order to discharge condensate water, the casing 1 in some embodiments is mounted on the wall along the transverse direction and forms a small angle with the horizontal plane.

[0049] Referring to Figure 2 and Figure 3 , the main body 1000 further includes an indoor heat exchanger 2 arranged in the receiving cavity V1.

[0050] It can be understood that the air conditioner in the present application is a split-type air conditioner, which includes an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are connected by a pipeline to transmit refrigerant. The wall-mounted air conditioner 10000 claimed in the present application is the indoor unit as described above. The indoor unit includes the indoor heat exchanger 2 and a heat exchange fan 41.

[0051] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan, and a throttling device. The compressor, the outdoor heat exchanger, the throttling device, and the indoor heat exchanger 2 are connected to form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit, and the outdoor heat exchanger and the indoor heat exchanger 2 respectively exchange heat with air to realize the cooling mode or the heating mode of the air conditioner.

[0052] The compressor is configured to compress the refrigerant to form high-pressure refrigerant from low-pressure refrigerant. 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 is condensed by emitting heat to the outdoor air through the outdoor heat exchanger. The outdoor heat exchanger works as an evaporator in the heating mode of the air conditioner, so that the refrigerant after pressure reduction is evaporated by absorbing the heat of the outdoor air through the outdoor heat exchanger. 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.

[0053] The throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger 2, and is used to adjust the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger 2, so as to adjust the flow rate of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger 2. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger 2 will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger 2. The throttling device can be a throttling pipe, an electronic valve, or the like. When the throttling device is an electronic valve, the opening degree of the throttling device is adjustable, so as to adjust the flow rate and pressure of the refrigerant flowing through the throttling device. In some schemes, the air conditioner can include a four-way valve connected in the refrigerant circuit, and the four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit to make the air conditioner perform a cooling mode or a heating mode.

[0054] The indoor heat exchanger 2 is configured to exchange heat between indoor air and the refrigerant transmitted in the indoor heat exchanger 2. The heat exchange fan 41 is configured to suck indoor air into the indoor unit and send the indoor air exchanged with the indoor heat exchanger 2 to the indoor. The heat exchange fan 41 provides power for the flow of indoor air. In the wall-mounted air conditioner 10000, the indoor heat exchanger 2 is usually arranged along the length direction of the cabinet 1.

[0055] Optionally, 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.

[0056] Referring to Figures 2-4 In some embodiments, the main body 1000 further includes a base 3 arranged in the accommodation cavity V1. The base 3 is a mounting support structure inside the main body 1000, and the indoor heat exchanger 2 can be mounted on the base 3. For example, the base 3 is formed with a volute tongue air duct V03. After the indoor air enters the cabinet 1, the volute tongue air duct V03 guides the flow direction, so that the indoor air flows through the indoor heat exchanger 2 with smaller resistance.

[0057] Referring to Figure 3 The main body 1000 further includes a heat exchange fan 41 arranged in the accommodation cavity V1. Specifically, the heat exchange fan 41 can be arranged in the volute tongue air duct V03.

[0058] In some embodiments, the heat exchange fan 41 is, for example, a cross-flow fan, which has low noise and large air volume, and the air outlet speed of the cross-flow fan is uniformly distributed along the axial direction of the cross-flow fan, which is beneficial to increase the air supply distance and air supply range. Moreover, in the case of using the cross-flow fan and arranging the cross-flow fan along the length direction of the main body 1000, the driving air flow can flow through the entire indoor heat exchanger 2, which ensures the balance of heat exchange efficiency at different positions of the indoor heat exchanger 2.

[0059] The main body 1000 further comprises a first motor arranged in the accommodating cavity V1. The first motor is configured to drive the heat exchange fan 41 to rotate, so that air is exchanged between the air conditioner and the indoor space.

[0060] By arranging the heat exchange air outlet 102 and the heat exchange air inlet 101 in the casing 1, the heat exchange fan 41 can suck indoor air into the casing 1 when operating. After the indoor air is exchanged with the indoor heat exchanger 2, the heat exchanged air is sent to the indoor space from the heat exchange air outlet 102.

[0061] Therefore, 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.

[0062] In some embodiments, in the height direction of the main body 1000, the heat exchange air inlet 101 is located above the heat exchange air outlet 102, so that air can be inhaled from above and air can be blown out from below.

[0063] For example, the height direction of the main body 1000 is the up-down direction.

[0064] It can be understood that the main body 1000 is usually installed on a wall, and in order to avoid interfering with people's daily life, the main body 1000 is usually hung at a high position. By arranging the main body 1000 to blow heat exchange air from below, the blown heat exchange air is not easily blocked by the roof or the ground, so that the heat exchange air has small resistance consumption 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, thereby improving the heat exchange efficiency.

[0065] 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 inhale air from above, so that air is not inhaled from the heat exchange air outlet 102, and the heat exchange air blown out from the heat exchange air outlet 102 is not directly sucked into the heat exchange air inlet 101, thereby reducing the heat exchange air idling without participating in the indoor heat exchange process.

[0066] 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, so that the heat exchange air inlet 101 is hidden, and the appearance of the wall-mounted air conditioner 10000 can be improved.

[0067] 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.

[0068] It can be understood that the side of the main body 1000 connected with the wall is usually called as the back or rear side, and the side opposite to the rear side is called as the front side, so when the heat exchange air outlet 102 is located at the front of the casing 1, the air outlet is away from the wall, the air blowing resistance is small, and the air supply range is wide.

[0069] 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 and downward at the same time, so that the heat exchange air can sink and fall on the person or object on the ground after being supplied to a certain distance, so that the person or object on the ground can be in the suitable indoor environment as soon as possible.

[0070] In some embodiments of the present application, the heat exchange fan 41 is located at the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101. It can be understood that the heat exchange fan 41 is a power driven member for driving the indoor air to exchange heat with the indoor heat exchanger 2, and is also a power driven member for air supply.

[0071] Placing the heat exchange fan 41 at the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101 can balance the air power generated when the heat exchange fan 41 rotates, and a part of the air power is distributed to the air inlet side, so that the inhaled air can overcome the air resistance generated by the indoor heat exchanger 2 when flowing into the volute tongue air duct V03, and another part of the air power is distributed to the air supply side, so that the heat exchanged air can be blown out from the heat exchange air outlet 102 when the heat exchanged air is supplied to a long distance.

[0072] In some embodiments of the present application, the first motor is located at one end of the main body 1000 in the length direction. In this way, the installation and maintenance of the first motor are facilitated, and the main body 1000 as a whole does not need to become too high and thick due to the arrangement of the first motor. 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.

[0073] In some embodiments of the present application, as shown in Figure 6 the wall-mounted air conditioner 10000 can include a second motor 5 arranged in the accommodating cavity V1, and the second motor 5 is located at one end of the main body 1000 in the length direction.

[0074] In the present application, the first motor and the second motor 5 can be located at the same end of the length direction of the main body 1000, and the centralized arrangement can facilitate wiring. The first motor and the second motor 5 can also be located at both ends of the length direction of the main body 1000. On the one hand, the two motors are separated and far apart, and the electromagnetic interference between them is small. On the other hand, the two motors are arranged at both ends of the length direction of the main body 1000, rather than arranged 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 appearance, and the appearance is slim and light.

[0075] Referring to Figure 6 , the second motor 5 includes a stator part 51 and a rotor part 52, and the stator part 51 and the rotor part 52 are main body parts of the second motor 5. The stator part 51 has a coil wound thereon, and the coil generates an alternating magnetic field after being supplied with alternating current. The rotor part 52 generates an induced current in the alternating magnetic field and rotates.

[0076] For example, the rotor part 52 can be a magnetic ring or a magnetic tile. For example, the rotor part 52 is a magnetic ring, which can reduce magnetic loss, enhance magnetic flux, and improve the power output efficiency of the second motor 5. Moreover, when a magnetic ring is used, the magnetic field distribution is uniform, the anti-interference performance is good, and the mechanical precision is higher.

[0077] The second motor 5 is an external rotor motor, and the rotor part 52 is arranged outside the stator part 51 in the radial direction of the stator part 51. The second motor 5 selects an external rotor motor, which has a simple structure. Moreover, since the rotor part 52 is arranged outside the stator part 51 in the radial direction of the stator part 51, the diameter of the rotor part 52 is large, a large torque can be obtained, and the second motor 5 can be used in scenarios such as low-speed large-torque and direct driving. That is, when the second motor 5 outputs power outward, a reducer can not be used to reduce speed and increase torque, thereby saving the space occupied by the reducer.

[0078] In addition, the rotor part 52 is located radially outside the stator part 51, has a large heat dissipation area, and has good heat dissipation performance, which is conducive to the stable operation of the second motor 5. Moreover, after being thus arranged, the diameter of the second motor 5 can be controlled to be relatively small, and the airflow passage space will not be occupied.

[0079] Referring to Figure 6 , the second motor 5 further includes a motor shell 53, which can support and protect the main body part of the second motor 5.

[0080] The motor shell 53 is fixedly connected with the rotor part 52, and the motor shell 53 rotates synchronously with the rotor part 52. In this way, the rotor part 52 can be fixed by the motor shell 53, which facilitates connection with external structures.

[0081] The second motor 5 further includes an output shaft 532, which is fixedly connected with the motor shell 53 and extends along the axial direction of the motor shell 53.

[0082] Referring to Figure 6 The wall-mounted air conditioner 10000 further comprises a fresh air fan 6, which is a mixed flow fan, connected to the output shaft 54 of the second motor 5.

[0083] The wall-mounted air conditioner 10000 further comprises a fresh air casing 8, in which a fresh air duct V01 is formed, and the fresh air fan 6 is installed in the fresh air casing 8. The fresh air casing 8 is provided with a fresh air inlet 801 and a fresh air outlet 802. The fresh air fan 6 rotates to allow outdoor air to enter the fresh air casing 8 from the fresh air inlet 801, and the outdoor air entering the fresh air casing 8 enters the indoor space from the fresh air outlet 802.

[0084] In this application, the fresh air module of the wall-mounted air conditioner 10000 at least comprises the fresh air fan 6, the second motor 5 and the fresh air casing 8. The fresh air module no longer uses a centrifugal fan, and the traditional volute structure is cancelled, but a mixed flow fan structure is adopted.

[0085] In the mixed flow fan of the fresh air module, after the gas is sucked into the fresh air duct V01 and enters the fresh air fan 6, it rotates along the fresh air blade 62, and wind pressure is generated by the constraint and guidance of the fresh air casing 8.

[0086] The mixed flow fan is different from the centrifugal fan in that the air is axially sucked in and radially thrown out, but the path of the shaft is obtained, so the impact on the fresh air blade 62 and the fresh air casing 8 is smaller, not only the power consumption is reduced, but also the noise is reduced. The flow coefficient of the mixed flow fan is larger than that of the centrifugal fan, and the air volume obtained is larger than that of the centrifugal fan.

[0087] In this application, the top of the cabinet 1 is provided with a cabinet air outlet 105, and the fresh air outlet 802 is connected to the cabinet air outlet 105 to make the outdoor air outlet from the top of the main body 1000. That is, the cabinet air outlet 105 is arranged corresponding to the fresh air outlet 802 of the fresh air casing 8, so that the fresh air discharged from the fresh air outlet 802 is discharged from the cabinet air outlet 105. The fresh air module adopts a top air outlet scheme. The cabinet air outlet 105 is arranged on the top wall of the cabinet 1, so that the fresh air is sent towards the roof, and the flow direction of the fresh air can be guided by the roof to make the fresh air flow along the roof to expand the air supply area.

[0088] Moreover, the fresh air sucked from the outdoor is discharged from the top of the main machine 1000, so that the fresh air outlet has no direct blowing feeling, and the body feeling is softer.

[0089] In some embodiments, the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the heat exchange air inlet 101 is relatively high on the casing 1, so that part of the fresh air blown out from the top of the fresh air outlet 802 can be sucked into the containing cavity V1 again through the heat exchange air inlet 101 and flow through the indoor heat exchanger 2. The arrangement is beneficial for the fresh air to reach room temperature quickly and improve the comfort of the fresh air blowing in, and is also beneficial for the fresh air to be fully mixed with the indoor air flowing through the indoor heat exchanger 2, so that the air blown into the room by the heat exchange air outlet 102 is fresh overall, and the uniformity of the distribution of the fresh air in the room is improved.

[0090] In the present application, since the fresh air fan 6 adopts an oblique flow fan, the air discharged is subjected to both centrifugal motion and axial motion, that is, the motion of the air discharged from the fresh air outlet 802 to the room is a combination of axial flow and centrifugal motion. Among them, the axial motion of the air is beneficial for the air to be sent farther, and the centrifugal motion of the air is beneficial for the air to diffuse around the fresh air outlet 802 after being discharged, thereby expanding the air supply area. Therefore, when the casing air outlet 105 is arranged on the top wall of the casing 1, part of the fresh air is blown towards the roof and diffused far away with the help of the roof, and part of the fresh air can diffuse under the centrifugal action before encountering the roof, so that the fresh air can be distributed to more areas.

[0091] Specifically, the part of the fresh air module where the oblique flow fan is arranged is in a cylindrical shape as a whole, and has a compact structure and occupies a relatively small space.

[0092] More specifically, the fresh air outlet 802 is located at the top of the main body 1000, and the casing air outlet 105 can be correspondingly arranged on the top wall of the casing 1, so that the discharged fresh air from the fresh air shell 8 is directly discharged from the casing air outlet 105, the air discharge path is short, and the energy consumption is low.

[0093] In some embodiments, referring to Figure 6 , the fresh air fan 6 comprises a fresh air hub 61, a fan outer cylinder 63, and fresh air blades 62.

[0094] The fresh air hub 61 is connected with the output shaft 54, and in the radial direction of the fresh air hub 61, the fan outer cylinder 63 is arranged outside the fresh air hub 61, and a first airflow channel 64 is formed between the fan outer cylinder 63 and the fresh air hub 61, two ends of the first airflow channel 64 being a first airflow inlet 641 and a first airflow outlet 642 respectively, and the first airflow outlet 642 being communicated with the casing air outlet 105. The fresh air blades 62 are located in the first airflow channel 64, and the fresh air blades 62 connect the fresh air hub 61 and the fan outer cylinder 63.

[0095] In this way, the first airflow passage 64 between the fresh air hub 61 and the fan outer cylinder 63 forms an annular channel that can constrain and guide the airflow to flow in a circular direction. In this way, when the fresh air blade 62 drives the airflow to move axially, it can drive the airflow to move centrifugally. After the centrifugally moving airflow is constrained by the fresh air hub 61 and the fan outer cylinder 63, the airflow pressure can be increased to form a driving force for blowing airflow.

[0096] The fan outer cylinder 63 provides a stable passage for the airflow therein, guiding the airflow to flow in the designed direction, so that the air makes both centrifugal and axial movements inside the fresh air fan 6 to achieve oblique flow. The fan outer cylinder 63 can surround the mixed flow impeller to form a relatively closed space, effectively preventing the airflow from leaking out from the periphery of the mixed flow impeller, reducing airflow loss, increasing pressure and air volume output, and enabling the fresh air fan 6 to more effectively deliver air to the desired location.

[0097] The fresh air hub 61 also provides a stable passage for the airflow therein, guiding the airflow to flow in the designed direction. This makes the airflow flow more smoothly through the fresh air fan 6, reduces the generation of airflow turbulence and vortex, and helps to improve the efficiency and performance of the fresh air fan 6, enabling the air to make both centrifugal and axial movements to achieve oblique flow.

[0098] The fresh air hub 61, the fan outer cylinder 63, and the fresh air blade 62 cooperate with each other to change the speed and direction of the airflow, convert the kinetic energy of the airflow into static pressure energy, thereby increasing the static pressure at the fresh air outlet 802 of the fresh air fan 6, enhancing the air delivery capacity of the fresh air fan 6, and enabling the fresh air fan 6 to deliver air to a farther distance or overcome greater resistance.

[0099] In some embodiments, as shown in FIG. 1, the wall-mounted air conditioner 10000 can include a fresh air fan 6 disposed in the accommodation cavity V1 and located between the air inlet 101 and the air outlet 105. The fresh air fan 6 can include a fresh air hub 61, a fresh air blade 62, and a fan outer cylinder 63. Figures 5-6 The fresh air fan 6 can include a first airflow passage 64 defined between the fresh air hub 61 and the fan outer cylinder 63. The first airflow passage 64 can be in communication with the air inlet 101 and the air outlet 105.

[0100] Thus, the air outlet flow guide 7 can rectify the airflow leaving the fresh air fan 6, make the airflow flow out more smoothly, reduce the turbulence and vortex of the airflow, increase the outlet pressure and efficiency of the fresh air fan 6, and also help to reduce noise.

[0101] Specifically, the air outlet flow guide 7 generally includes a plurality of flow guide vanes uniformly distributed around the circumferential direction of the first airflow outlet 642 of the fresh air fan 6. This uniform distribution can uniformly guide and rectify the airflow on the entire outlet cross section, avoiding airflow deflection or local turbulence.

[0102] Optionally, the air outlet flow guide 7 is connected to the base 3, which can be directly connected or indirectly connected, so as to maintain the stability of the air outlet flow guide 7. For example, as shown in Figure 3 and Figure 4 The main body 1000 further includes an extension plate 13 connected to one end of the base 3 in the length direction. The extension plate 13 is located on one side of the fresh air module, and the air outlet flow guide 7 is installed on the extension plate 13 to achieve spaced connection with the base 3.

[0103] More specifically, as shown in Figure 5 The air outlet flow guide 7 can include a flow guide inner cylinder 71, a flow guide outer cylinder 73, and a flow guide vane 72. In the radial direction of the air outlet flow guide 7, the flow guide outer cylinder 73 is arranged outside the flow guide inner cylinder 71, and a second airflow passage 74 is formed between the flow guide inner cylinder 71 and the flow guide outer cylinder 73. The flow guide vane 72 is located in the second airflow passage 74, and the flow guide vane 72 connects the flow guide inner cylinder 71 and the flow guide outer cylinder 73.

[0104] The flow guide vane 72 is arranged to comb and guide the turbulent airflow, so that the airflow flows in a designed direction and path, becomes smoother and more stable, and reduces vortex and turbulence of the airflow. The flow guide inner cylinder 71 and the flow guide outer cylinder 73 function to form a ring-shaped second airflow passage 74, providing a stable passage for the airflow and guiding the airflow to flow in a designed direction.

[0105] In this way, through the flow regulating effect on the airflow, the airflow enters the indoor in a more ideal state, reducing the energy loss of the airflow in the flow process, thereby improving the overall efficiency of the diagonal flow fan.

[0106] Specifically, the upper end of the second airflow passage 74 is arranged towards the casing air outlet 105, and the lower end of the second airflow passage 74 is arranged towards the fresh air fan 6. In this way, the fresh air fan 6 and the air outlet flow guide 7 can be arranged compactly, the air outlet path is shortened, and the air resistance is small.

[0107] In some embodiments of the present application, referring to Figures 5-6 The inner periphery of the flow guide outer cylinder 73 and the outer periphery of the flow guide inner cylinder 71 both extend along the axial direction of the second motor 5 to axially guide the airflow in the second airflow passage 74. In other words, the inner periphery of the flow guide outer cylinder 73 and the outer periphery of the flow guide inner cylinder 71 are both cylindrical surfaces, and the inner periphery of the flow guide outer cylinder 73 and the outer periphery of the flow guide inner cylinder 71 define an annular passage extending along the axial direction of the second motor 5, so that the airflow blows out along the axial direction of the second motor 5, i.e. vertically upwards, and the blown-out airflow is more concentrated, reducing excessive wind loss consumption in the air outlet flow guide 7 before blowing out.

[0108] Optionally, the spacing d1 between adjacent flow guide vanes 72 is 10-20 mm according to different diameters. Here, referring toFigure 5 With the axis of the air outlet flow guide 7 as the center line, a reference circle is made, and the circular arc length between the adjacent two flow guide vanes 72, i.e., the interval d1, is obtained. Generally, the intervals d1 between the adjacent flow guide vanes 72 obtained on the reference circles of different diameters are not equal. As shown in the example, Figure 5 The intervals d1 between the adjacent flow guide vanes 72 gradually increase in the radial outward direction.

[0109] Limiting the intervals d1 between the adjacent flow guide vanes 72 to be between 10-20 mm can match the structural parameter limitation requirements of the fresh air module in the wall-mounted air conditioner 10000, on the one hand, to ensure that the flow guide vanes 72 have sufficient number of vanes to better guide and rectify the airflow, and on the other hand, to leave enough space between the adjacent flow guide vanes 72 to reduce the wind resistance.

[0110] Specifically, the stator part 51 of the second motor 5 is connected with the air outlet flow guide 7. It can be understood that the air outlet flow guide 7 is installed on the base 3, and the second motor 5 is installed on the air outlet flow guide 7, which is equivalent to being indirectly installed on the base 3, thereby ensuring the stability of the second motor 5 and reducing the shaking.

[0111] In addition, the air outlet flow guide 7 is located at the air outlet end of the fresh air fan 6, and the center of the air outlet end of the fresh air fan 6 is a windless area. At this time, the second motor 5 is installed on the air outlet flow guide 7, and the second motor 5 can be arranged in the windless area of the fresh air fan 6. On the one hand, the second motor 5 does not need to be installed at the air inlet end of the fresh air fan 6, avoiding the second motor 5 from becoming an air inlet obstacle, and on the other hand, the installation in the windless area can allow the second motor 5 to be arranged close to the fresh air fan 6, avoiding the formation of a large bending moment and reducing the shaking of the fresh air fan 6, thereby reducing the operating noise of the fresh air fan 6.

[0112] Specifically, referring to Figures 5-6 , the wall-mounted air conditioner 10000 can include a motor support 91 located on the radial inner side of the flow guide inner cylinder 71 and connected with the flow guide inner cylinder 71. The stator part 51 of the second motor 5 is installed on the motor support 91, and at least part of the stator part 51 is located between the motor support 91 and the fresh air hub 61. In this way, the motor support 91 can be connected with the air outlet flow guide 7 in the entire circumferential range, with high connection reliability and convenient installation. Especially when the motor support 91 is detachably connected with the flow guide inner cylinder 71, when maintenance is needed, the motor support 91 can be removed from the top of the main body 1000, so that the condition of the second motor 5 can be observed.

[0113] In some embodiments, the fresh air hub 61 is a cylinder, specifically a conical cylinder, and the fresh air hub 61 is open at one end facing the air outlet 105 of the casing. At least part of the stator portion 51, the rotor portion 52, the motor housing 53, and the output shaft 54 are located in the fresh air hub 61. In this way, the output shaft 54 does not need to be too long, and the bending moment generated during rotation can be relatively small, thereby improving the dynamic stability of the fresh air fan 6.

[0114] Specifically, the air outlet guide 7 can include a reinforcing ring 75 connected to the guide inner cylinder 71, and the reinforcing ring 75 is located in the fresh air hub 61, and at least part of the stator portion 51, the rotor portion 52, and the motor housing 53 are located in the reinforcing ring 75. In this way, the reinforcing ring 75 can improve the support effect of the fresh air fan 6. Especially when the fresh air fan 6 is tilted, the reinforcing ring 75 is used to support the quick return to normal, and the damage probability of the second motor 5 caused by the tilt of the fresh air fan 6 is reduced.

[0115] Optionally, at least the fresh air hub 61 of the fresh air fan 6 is an integral injection molding part, and the output shaft 54 is fixedly connected to the fresh air hub 61 by injection molding. Thus, the processing steps are reduced, and the connection firmness of the output shaft 54 and the fresh air hub 61 is improved. In this way, it is not necessary to regularly check whether the two are loose, and the probability of wear and tear of the fresh air fan 6 due to loosening is reduced.

[0116] Further, on the fresh air fan 6, the fresh air hub 61 and the fresh air blade 62 are integral injection molding parts, and the fan outer cylinder 63 is a separate part and is fixedly connected to the fresh air blade 62. It can be understood that the fresh air hub 61 is connected to the second motor 5 and is the power connection source of the fresh air fan 6. The fresh air blade 62 is used to drive the airflow, and is the power consumption part of the fresh air fan 6, which bears the largest torque. At this time, the fresh air hub 61 and the fresh air blade 62 are integrally injection molded to maximize the risk of loosening. The fan outer cylinder 63 is provided as a separate part and is separately processed, which can reduce the processing difficulty of the fresh air fan 6 and reduce the scrap rate.

[0117] Further, as shown in Figure 6 the inner wall of the fan outer cylinder 63 is provided with a clamping hole 631, and the blade edge of the fresh air blade 62 is provided with a clamping block 621, and the clamping block 621 is inserted into the clamping hole 631. During assembly, the fresh air blade 62 connected to the fresh air hub 61 can be squeezed into the fan outer cylinder 63 by using an assembly tool, and at this time the fan outer cylinder 63 is slightly deformed. When the block 621 is inserted into the clamping hole 631, the fan outer cylinder 63 returns to its original shape and clamps the fresh air blade 62.

[0118] Of course, the structure of the fresh air fan 6 can also not be limited to this, and the structure of an inclined flow fan known in the prior art can also be used.

[0119] Specifically, the fresh air fan 6 can be a plastic piece, so as to be light in weight and low in cost. In some embodiments, the fresh air fan 6 can also be a resin piece, a metal piece, etc.

[0120] Specifically, the fresh air shell 8 can be a plastic piece, so as to be light in weight and low in cost. In some embodiments, the fresh air shell 8 can also be a resin piece, a metal piece, etc.

[0121] Further, as shown in Figure 6 , the fresh air fan 6 can include a first wind-blocking ring 65, which is arranged outside the fan outer cylinder 63 in the radial direction of the fresh air hub 61 and is connected to the fan outer cylinder 63. A first wind-blocking groove 66 is formed between the first wind-blocking ring 65 and the fan outer cylinder 63, and the opening of the first wind-blocking groove 66 is arranged in the direction of the first air inlet 641.

[0122] The arrangement of the first wind-blocking groove 66 can effectively prevent air flow from the periphery of the fresh air fan 6, effectively prevent the high-pressure area of the fan from leaking to the low-pressure area, reduce the leakage amount of the gas, and improve the efficiency and performance of the fan. When the air flow attempts to flow to the periphery of the fresh air fan 6, the air flow will be blocked in the first wind-blocking groove 66, increasing the flow resistance and thus reducing the possibility of leakage.

[0123] Optionally, the number of first wind-blocking rings 65 can be one or two or more, so that multiple blocking arrangements are provided, further increasing the flow resistance and further reducing the possibility of leakage. In addition, when the air flow passes through multiple first wind-blocking grooves 66, the air flow will be divided into multiple small air flows, which collide and rub with each other in the channel, so that the energy of the air flow is consumed and attenuated to a certain extent, thereby reducing the noise generated by the air flow.

[0124] Further, the fresh air shell 8 can include a second wind-blocking ring 83, which is arranged on the inner wall of the fresh air duct V01 and surrounds the outside of the fan outer cylinder 63. At least part of the second wind-blocking ring 83 is located in the first wind-blocking groove 66. In this way, the first wind-blocking ring 65 and the second wind-blocking ring 83 form a labyrinth structure composed of multiple interlaced annular channels, further increasing the tortuosity of the air flow channel around the fresh air fan 6. This will continuously change the direction in the tortuous channel, further increasing the flow resistance and thus reducing the possibility of leakage.

[0125] In some embodiments, referring to Figure 2 , the wall-mounted air conditioner 10000 can include a purification piece 11, referring to Figure 6 , the purification piece 11 is arranged in the fresh air duct V01 and is used to purify the fresh air blown into the room, thereby improving the cleanliness of the indoor air.

[0126] For example, the purifying member 11 is installed in the fresh air cavity V012, for example, the purifying member 11 is located at the axial air inlet end of the fresh air fan 6. The fresh air fan 6 rotates to make the outdoor air enter the fresh air casing 8 from the fresh air inlet 801, and the outdoor air entering the fresh air casing 8 blows through the purifying member 11 and then enters the indoor from the fresh air outlet 802.

[0127] Specifically, the purifying member 11 is connected with the fresh air casing 8. In this way, the assembly is facilitated, and the purifying member 11 does not interfere with the fresh air fan 6.

[0128] Further, the purifying member 11 is transversely arranged and located below the fresh air fan 6. In this way, the fresh air flow can almost vertically blow through the purifying member 11, and the fresh air inlet consumption can be further reduced, thereby increasing the fresh air flow. Moreover, when the indoor heat exchanger 2 is in a refrigeration state, condensate water is generated in the fresh air. When the air flows through the purifying member 11, the condensate water can be left on the purifying member 11, thereby further avoiding the blowing of water when the fresh air device blows out.

[0129] The purifying member 11 includes a filter screen 111, which covers the entire air inlet end of the fresh air fan 6. The filter screen 111 has a large coverage area and a large filtration area, and has a good filtration effect. The arrangement of the filter screen 111 helps to ensure sufficient contact area with the airflow, and the filter screen 111 is light in weight and low in wind noise. For example, the filter screen 111 is a Hepa screen, and thus has strong adsorption capacity and strong filtration effect on dust in the air.

[0130] For example, the filter screen 111 is plate-shaped, so that the filter screen 111 is relatively thin as a whole and does not occupy a too thick size in the fresh air casing 8.

[0131] For example, the filter screen 111 is square-shaped, so that the positioning and installation of the filter screen 111 are facilitated.

[0132] In some embodiments, the filter screen 111 is a square screen, and the side length of the filter screen 111 is greater than the diameter of the lower end of the fresh air fan 6. The square screen is convenient to position when fixed, is not easy to shake after being fixed, and is easy to process and has less waste.

[0133] The filter screen 111 covers below the first airflow inlet 641 of the fresh air fan 6, and the side length of the filter screen 111 is greater than the diameter of the lower end of the fresh air fan 6, so that all the fresh air flow entering the first airflow passage 64 can flow through the filter screen 111, and the filtration cleanliness is high.

[0134] In some embodiments, the fresh air casing 8 is further provided with a first mounting port 803, and the purifying member 11 is detachably assembled in the first mounting port 803. In this way, when the purifying member 11 is damaged or saturated, the purifying member 11 can be easily disassembled for maintenance or replacement.

[0135] Specifically, the casing 1 is provided with a second mounting port 106 opposite the first mounting port 803, and the purification component 11 is detachably assembled in the casing 1 through the second mounting port 106. In this way, the purification component 11 can be disassembled from the front side of the casing 1. The second mounting port 106 is arranged on the front side, and there is sufficient area to arrange the second mounting port 106, and the disassembly is also very convenient. When the purification component 11 is disassembled, it is also free from the interference of the connected pipeline at the fresh air inlet 801, so that the disassembly is convenient to operate.

[0136] Further, the front side of the casing 1 is provided with a panel 12 that can be opened and closed. When the panel 12 is opened or the panel 12 is turned upward, the first mounting port 803 can be exposed, which facilitates the disassembly of the purification component 11.

[0137] It is also not excluded that in some schemes, the first mounting port 803 is arranged at the bottom of the main body 1000.

[0138] In some embodiments, the wall-mounted air conditioner 10000 can include a fresh air introduction pipe connected to the fresh air inlet 801, and the casing 1 is provided with a pipe avoiding port 104, and the fresh air introduction pipe is arranged at the pipe avoiding port 104 and extends out of the main body 1000.

[0139] Optionally, the pipe avoiding port 104 is arranged on the side wall of the main body 1000, which facilitates the installation of the above-mentioned pipeline and ensures that the appearance of the main body 1000 is beautiful.

[0140] In some embodiments, as shown in Figures 4-6 The fresh air shell 8 can include a first shell part 81 and a second shell part 82.

[0141] The top of the first shell part 81 is open, and the bottom of the first shell part 81 is provided with the fresh air inlet 801. The second shell part 82 is connected to the top of the first shell part 81, the fresh air fan 6 is located in the second shell part 82, the top of the second shell part 82 is open to form the fresh air outlet 802, and the fresh air outlet 802 is arranged opposite the casing outlet 105. The cavity formed by the first shell part 81 is located at the air inlet end of the fresh air fan 6, and air can be contained in the cavity, so that the air can enter the fresh air fan 6 in the axial direction perpendicular to the first shell part 81, thereby improving the air suction efficiency of the fresh air fan 6 and reducing the air suction loss.

[0142] Specifically, the fresh air shell 8 further includes a pipe joint 84, the bottom of the first shell part 81 is provided with a switching port 811, and the pipe joint 84 is connected to the switching port 811. The air inlet of the pipe joint 84 can be formed as the fresh air inlet 801. The pipe joint 84 is used to connect the fresh air introduction pipe.

[0143] When the wall-mounted air conditioner 10000 includes the purification component 11, the purification component 11 is installed in the first shell part 81. In this way, the installation is divided, and the assembly is convenient.

[0144] It should be noted that any one of the technical solutions disclosed in the present application can solve one or more of the above technical problems and achieve certain disclosed purposes; multiple technical disclosures can also be combined into one overall scheme to solve one or more of the above technical problems and achieve certain disclosed purposes; or some technical disclosures can be combined into one overall scheme, while related technologies and degraded schemes are used, but the degraded trend can be compensated for through the disclosed technical means, and the overall technical problems and certain disclosed purposes are solved to some extent; each technical disclosure is combined into a complete technical scheme, which constitutes an organic and indivisible overall scheme, and solves technical problems and achieves certain disclosed purposes.

[0145] Any one of the technical disclosures in the present application, as well as the recombination of multiple technical disclosures, can form a complete technical scheme, and can solve one or more of the above technical problems to achieve the disclosed purposes, which belong to the content of the present application and are directly and without doubt determined according to the content of the present application.

[0146] Those skilled in the art will understand that the scope of the disclosure of the present application is not limited to the above-mentioned some embodiments, and some elements of the embodiments can be modified and replaced without departing from the spirit of the present application. The scope of the present application is limited by the appended claims.

Claims

1. A wall-mounted air conditioner, comprising: The main body, the main body includes: The housing has an internal cavity and a heat exchange inlet and a heat exchange outlet on its surface. An indoor heat exchanger is disposed within the accommodating cavity; A heat exchange fan is disposed within the accommodating cavity; A first motor is disposed in the accommodating cavity and is used to drive the heat exchange fan to rotate so that the air inside the air conditioner exchanges heat with the indoor heat exchanger. The wall-mounted air conditioner is characterized in that it further includes: A second motor is disposed within the accommodating cavity, located at one end of the main body along its length. The second motor is an external rotor motor, and includes: Stator section; The rotor portion is disposed radially around the outside of the stator portion; Motor housing, the motor housing being fixedly connected to the rotor portion; An output shaft, which is fixedly connected to the motor housing; The fresh air fan is a diagonal flow fan, and the fresh air fan is connected to the output shaft of the second motor; A fresh air housing is provided, a fresh air duct is formed inside the fresh air housing, a fresh air fan is installed inside the fresh air housing, and a fresh air inlet and a fresh air outlet are formed on the fresh air housing. The rotation of the fresh air fan allows outdoor air to enter the fresh air housing from the fresh air inlet, and allows outdoor air entering the fresh air housing to enter the room from the fresh air outlet. The top of the housing is provided with a housing air outlet, and the fresh air outlet is connected to the housing air outlet so that outdoor air is discharged from the top of the main body.

2. The wall-mounted air conditioner according to claim 1, characterized in that, The fresh air fan includes: Fresh air hub, the fresh air hub is connected to the output shaft; The fan outer cylinder is arranged radially around the outside of the fresh air hub. A first airflow channel is formed between the fan outer cylinder and the fresh air hub. The two ends of the first airflow channel are a first airflow inlet and a first airflow outlet, respectively. The first airflow outlet is connected to the air outlet of the housing. Fresh air blades are located within the first airflow channel and are connected to the fresh air hub and the outer cylinder of the fan.

3. The wall-mounted air conditioner according to claim 2, characterized in that, It can include: An air outlet guide is disposed within the accommodating cavity and located between the fresh air fan and the air outlet of the housing. The air outlet guide has a second airflow channel that communicates with the first airflow channel to guide fresh air to the air outlet of the housing.

4. The wall-mounted air conditioner according to claim 3, characterized in that, The air outlet guide may include: Inner guide cylinder; An outer guide cylinder is arranged radially around the outer side of the inner guide cylinder of the air outlet guide, and a second airflow channel is formed between the outer guide cylinder and the inner guide cylinder; A guide vane is located within the second airflow channel, and the guide vane connects the inner guide cylinder and the outer guide cylinder; The upper end of the second airflow channel is positioned towards the air outlet of the housing, and the lower end of the second airflow channel is positioned towards the fresh air fan.

5. The wall-mounted air conditioner according to claim 4, characterized in that, The inner circumferential surface of the outer guide cylinder and the outer circumferential surface of the inner guide cylinder both extend along the axial direction of the second motor to guide the airflow in the second airflow channel axially.

6. The wall-mounted air conditioner according to claim 3, characterized in that, The stator of the second motor is connected to the air outlet guide.

7. The wall-mounted air conditioner according to claim 4, characterized in that, It can include: A motor bracket, which is located radially inside the inner flow guide cylinder and connected to the inner flow guide cylinder; The stator is mounted on the motor bracket, and at least a portion of the stator is located between the motor bracket and the fresh air hub.

8. The wall-mounted air conditioner according to claim 2, characterized in that, The fresh air hub is open at the end facing the air outlet of the housing; At least a portion of the stator, the rotor, the motor housing, and the output shaft are located within the fresh air hub.

9. The wall-mounted air conditioner according to claim 4, characterized in that, The fresh air hub is open at the end facing the air outlet of the housing; The air outlet guide may include: A reinforcing ring is connected to the inner guide cylinder and is located inside the fresh air hub. At least a portion of the stator, the rotor, and the motor housing are located inside the reinforcing ring.

10. The wall-mounted air conditioner according to claim 2, characterized in that, On the fresh air fan, the fresh air hub and the fresh air blades are integrally injection molded parts, and the fan outer cylinder is an independent part, which is fixedly connected to the fresh air blades.

11. The wall-mounted air conditioner according to claim 10, characterized in that, The inner wall of the fan outer cylinder is provided with a locking hole, and the blade edge of the fresh air blade is provided with a locking block, which is inserted into the locking hole.

12. The wall-mounted air conditioner according to claim 2, characterized in that, The fresh air fan may include: A first wind-blocking ring is arranged radially around the outside of the fan outer cylinder and connected to the fan outer cylinder. A first wind-blocking groove is formed between the first wind-blocking ring and the fan outer cylinder. The opening of the first wind-blocking groove is arranged facing the direction of the first airflow inlet. The fresh air housing may include: The second air choke ring is disposed on the inner wall of the fresh air duct and surrounds the outer side of the fan outer cylinder. At least a portion of the second air choke ring is located within the first air choke groove.

13. The wall-mounted air conditioner according to any one of claims 1-12, characterized in that, It can include: The purification component is installed in the fresh air duct and is connected to the fresh air housing. The rotation of the fresh air fan allows outdoor air to enter the fresh air housing from the fresh air inlet and allows outdoor air entering the fresh air housing to be blown through the purification component and then enter the room from the fresh air outlet. The purification component is arranged horizontally and located below the fresh air fan; The fresh air housing is provided with a first mounting port, and the purification component can be detachably assembled into the fresh air housing through the first mounting port.

14. The wall-mounted air conditioner according to claim 13, characterized in that, The housing is provided with a second mounting port that is directly opposite the first mounting port, and the purification component can be detachably assembled into the housing through the second mounting port.

15. The wall-mounted air conditioner according to any one of claims 1-12, characterized in that, The fresh air housing may include: The first shell has an open top and a fresh air inlet at the bottom. The second housing is connected to the top of the first housing, and the fresh air fan is located inside the second housing. The top of the second housing is open to form the fresh air outlet, and is positioned directly opposite the air outlet of the housing.

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