Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted type air conditioner which comprises a machine shell, an air inlet pipe, an air outlet pipe, an air inlet pipe and an air outlet pipe. A second motor; the exhaust fan is connected with the second motor; the exhaust fan is installed in the exhaust volute, and an exhaust air outlet is formed in the exhaust volute; the electric appliance box is arranged in the containing cavity, the electric appliance box and the second motor are located at the same end of the main body in the length direction, and the electric appliance box is located above the exhaust fan in the height direction of the main body. According to the wall-mounted air conditioner, the exhaust fan is driven by the second motor to rotate, a large amount of indoor air can be exhausted, the electric appliance box is arranged on the upper side of the exhaust fan, part of the indoor air can be used for cooling the internal structure of the electric appliance box during indoor air exhaust, the rotating speed of the second motor cannot be reduced, and the service life of the electric appliance box is prolonged. The exhaust air volume and the fresh air volume can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a wall-mounted air conditioner. Background Art

[0002] As people's requirements for fresh air increase, some fresh air wall-mounted air conditioners are equipped with two-way fresh air modules. Since the motor needs to drive the fresh air fan and the exhaust fan, in order to achieve the same fresh air volume, the motor speed cannot be reduced and the output power is increased. However, the circuit board of the indoor unit works in a sealed environment, the radiator heat dissipation conditions are poor, the temperature rises significantly, and it cannot provide greater power, resulting in the motor speed failing to reach the set speed, resulting in a decrease in fresh air volume and exhaust volume. There is room for improvement. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a wall-mounted air conditioner that can utilize part of the indoor air to cool the electrical box during indoor exhaust, thereby increasing the exhaust air volume and the fresh air volume without reducing the rotation speed of the second motor.

[0004] According to an embodiment of the present invention, the wall-mounted air conditioner includes: a main body, which includes; a casing, a accommodating cavity is formed inside the casing, and a heat exchange air inlet and a heat exchange air outlet are formed on the casing; an indoor heat exchanger is arranged in the accommodating cavity; a base is arranged in the accommodating cavity, and a volute air duct is formed on the base; a heat exchange fan is arranged in the volute air duct and is located on the side of the indoor heat exchanger away from the heat exchange air inlet; a first motor is arranged in the accommodating cavity and is located at one end in the length direction of the main body, the first motor is used to drive the heat exchange fan to rotate so that the air inside the air conditioner performs heat exchange with the indoor space, the first motor has a first output shaft, the heat exchange fan is connected to the first output shaft, and the first output shaft extends along the length direction of the main body.

[0005] The wall-mounted air conditioner also includes: a second motor, which is arranged in the accommodating cavity, and the second motor is located at the other end of the length direction of the main body, the second motor includes: a stator part, the stator part has a wound coil; a rotor part, in the radial direction of the stator part, the rotor part is arranged around the outside of the stator part; a motor housing, the motor housing is connected to the rotor part; and a second output shaft, the second output shaft is fixedly connected to the motor housing, and the second output shaft extends along the height direction of the main body.

[0006] The wall-mounted air conditioner also includes: a fresh air fan, which is a centrifugal fan with axial air intake and radial air outlet, and is connected to the second output shaft. The axial direction of the fresh air fan is along the height direction of the main body, and in the height direction of the main body, the fresh air fan is located below the stator part; an exhaust fan, which is a centrifugal fan with axial air intake and radial air outlet, and is sleeved on the radial outside of the motor housing. The exhaust fan is fixedly connected to the motor housing, and the axial direction of the exhaust fan is along the height direction of the main body. In the height direction of the main body, the exhaust fan is located above the fresh air fan.

[0007] When in operation, the second motor drives the fresh air fan and the exhaust fan to rotate synchronously.

[0008] The wall-mounted air conditioner also includes: a fresh air volute, a fresh air duct is formed in the fresh air volute, the fresh air fan is installed in the fresh air volute, and a fresh air inlet and a fresh air outlet are formed on the fresh air volute. The rotation of the fresh air fan can allow outdoor air to enter the fresh air volute from the fresh air inlet, and can allow outdoor air entering the fresh air volute to enter the room from the fresh air outlet.

[0009] The wall-mounted air conditioner also includes: an exhaust volute, an exhaust duct is formed in the exhaust volute, the exhaust fan is installed in the exhaust volute, an exhaust air inlet and an exhaust air outlet are formed on the exhaust volute, the exhaust air inlet is open upward along the up and down directions of the main body, and the rotation of the exhaust fan can allow indoor air to enter the exhaust volute from the exhaust air inlet, and can allow the indoor air entering the exhaust volute to be discharged to the outside through the exhaust outlet.

[0010] The wall-mounted air conditioner further includes: an electrical box disposed in the accommodating cavity, wherein the electrical box and the second motor are located at the same end in the length direction of the main body, and in the height direction of the main body, the electrical box is located above the exhaust fan.

[0011] Then, the first motor and the second motor are located at the two ends of the main body in the length direction. On the one hand, the two motors are separated and far away, and the mutual electromagnetic interference is small. On the other hand, the two motors are arranged at the two ends of the main body in the length direction, rather than in the thickness or height direction of the main body, so that the main body of the wall-mounted air conditioner is elongated, slim and thin, the height direction of the main body is consistent with the up and down direction, and the thickness direction of the main body is consistent with the front and back direction.

[0012] The exhaust fan is located above the fresh air fan, and the exhaust inlet is located above the exhaust fan, so that the dirty air in the room enters from the top, then the position of the fresh air outlet of the fresh air fan is lower than the position of the exhaust inlet, and the outdoor fresh air flows into the room through the fresh air outlet, and the dirty air that needs to be discharged enters the exhaust inlet from the top, that is, the air coming out of the fresh air outlet can reach the people or objects in the room closer and faster, thereby improving the comfort of the people in the room, while the dirty air is discharged into the exhaust volute from the top away from the people and indoor objects, thereby reducing the impact of the dirty air on the people in the room.

[0013] On the other hand, when the exhaust fan is located above the fresh air fan, the exhaust air inlet will also be set at an upper position in the height direction of the main body based on this premise, that is, the exhaust air inlet is relatively close to the heat exchange air inlet of the air conditioner. Therefore, the heat exchange air inlet can be directly used as the air inlet of the exhaust fan on the casing, and there is no need to open an air inlet in other positions, which simplifies the process and improves the overall appearance.

[0014] The axial direction of the fresh air fan is also arranged along the height direction of the main body, and the axial direction of the exhaust fan is also arranged along the up and down direction, and the exhaust air inlet of the exhaust fan is opened upward, that is, the axial direction of the exhaust fan is consistent with the opening direction of the exhaust air inlet. When the air flow enters the exhaust volute from the exhaust inlet, the blades of the exhaust fan rotate, and the air flow is directly brought into the exhaust volute along the axial direction of the exhaust fan with a shorter path, thereby shortening the exhaust air intake path and being unobstructed, which also makes the exhaust air inlet wind resistance further reduced, and the air volume entering the exhaust volute from the exhaust inlet is increased, thereby increasing the exhaust air volume; at the same time, the axial direction of the fresh air fan is also arranged along the height direction of the air conditioner, and when outdoor fresh air enters the fresh air volute from the axial direction, the blades of the fresh air fan rotate, bringing the fresh air directly into the fresh air volute, the fresh air intake path is shorter, and there is no obstruction, and the wind resistance is small, thereby

[0015] Moreover, the exhaust fan is sleeved on the radially outer side of the motor casing, which saves the axial distance between the motor casing and the exhaust fan and the fresh air fan, making the structure more compact and occupying less axial space; in addition, the motor casing is embedded in the exhaust fan, so the second motor can be kept away from the water collecting pan at the bottom of the indoor heat exchanger, thereby reducing the impact of moisture in the water collecting pan on the second motor, and also allowing the exhaust volute to protect the second motor.

[0016] Moreover, the second motor drives the fresh air fan and the exhaust fan to rotate synchronously when in working state.

[0017] If the axial direction of the exhaust fan, the axial direction of the fresh air fan and the axial direction of the second output shaft are all along the height direction of the main body, the second motor can be connected to the fresh air fan along the height direction of the main body through the second output shaft, and the second motor transmits driving force from top to bottom. The exhaust fan is arranged on the radial outer side of the motor housing, and the exhaust fan is located above the fresh air fan. This arrangement can save the vertical space of the main body and has a high degree of integration, so that the second motor can drive the fresh air fan and the exhaust fan to rotate at the same time in the height direction of the main body to realize the vertical driving mode. At the same time, one motor can meet the needs of outdoor fresh air entering the room and discharge the dirty air in the room to the outside, saving costs and improving work efficiency.

[0018] In addition, when the second motor rotates to drive the exhaust fan to rotate, part of the air can flow through the electrical box to the exhaust inlet of the exhaust fan below. In this way, the heat of the internal structure of the electrical box can be taken away to cool the electrical box. Part of the air passes through the periphery of the electrical box and can also take away the temperature of the surface of the electrical box body. The electrical box is cooled in two ways so that the internal structure of the electrical box can operate within a certain temperature range, reducing the damage to electronic components and other structures in the electrical box caused by high temperature, allowing the electronic components to provide greater power, and improving the service life of the electrical box. The electrical box can be electrically connected to the second motor, and the electrical box serves as a control module for controlling the operation of the second motor so that the second motor can output power stably.

[0019] Furthermore, the electric control box is arranged above the exhaust fan, so that the electric control box is located at a higher position, which can prevent condensed water generated during the operation of the air conditioner from flowing into the electric control box, thereby improving the safety of the electric control box and ensuring the safe operation of the wall-mounted air conditioner.

[0020] According to the wall-mounted air conditioner of the embodiment of the present invention, a large amount of indoor air can be discharged by driving the exhaust fan to rotate by the second motor, thereby realizing the exhaust function, and a part of the indoor air can be used to cool the internal structure of the electrical box, thereby realizing the cooling function, which can prevent the temperature of the electronic components from being too high and make the internal structure of the electrical box operate within a certain temperature range. In this way, the electronic components can provide greater power, the input power of the second motor is increased, and the speed of the second motor is increased, thereby increasing the fresh air volume and the exhaust volume.

[0021] According to some embodiments of the wall-mounted air conditioner of the present invention, the electrical appliance box includes: a box cover, a box inner cavity is formed in the box cover, a box air inlet and a box air outlet are formed in the box cover, and the box air outlet is connected to the exhaust air inlet; a circuit board, and the circuit board is installed in the box inner cavity; wherein, the rotation of the exhaust fan can also allow a portion of indoor air to enter the box inner cavity from the box air inlet and flow through the circuit board, then flow out from the box air outlet and flow towards the exhaust air inlet.

[0022] Therefore, when the electrical box is working, its internal structure will generate heat. The exhaust fan is driven by the second motor to rotate, so that a part of the indoor air can enter the box cavity from the box air inlet. After the indoor air enters the box cavity, it exchanges heat with the circuit boards, electronic components, etc. in the box cavity, and then flows from the box air inlet to the exhaust air inlet, and then is discharged into the room through the exhaust air outlet, which can take away the heat of the electrical box, so that the internal structure of the electrical box can operate within a certain temperature range. In this way, the electronic components can provide greater power and the input power of the second motor is increased.

[0023] According to some embodiments of the wall-mounted air conditioner of the present invention, the box air inlet is located at the top of the box housing, and the box air outlet is located at the bottom of the box housing, in the height direction of the main body. Thus, airflow above the box housing can enter the box housing through the box air inlet, and then flow out of the box housing through the box air outlet after passing through the air duct within the box housing. During the airflow process, heat is exchanged with the internal structure of the electrical box, thereby achieving heat dissipation and cooling of the electrical box.

[0024] According to some embodiments of the wall-mounted air conditioner of the present invention, in the projection along the height direction of the main body, the box air inlet and the box air outlet overlap or are at least partially staggered, so that a direct air flow channel can be formed, and the air can be guided to flow directly from the box air inlet to the box air outlet, and then to flow to the exhaust air inlet, thereby improving the efficiency of the air flow, and the structure is simple and easy to process.

[0025] According to the wall-mounted air conditioner of some embodiments of the present invention, the box air outlet is connected to the exhaust air inlet through a maze heat dissipation channel. In this way, the airflow at the box air outlet can be guided by the maze heat dissipation channel and dispersed at the periphery of the outlet end of the maze heat dissipation channel to expand the air flow range. The hot air flow is mixed with the air flow at the exhaust air inlet and enters the exhaust volute from the periphery of the exhaust air inlet together, which is beneficial to the discharge of the hot air flow in the electrical box.

[0026] According to some embodiments of the wall-mounted air conditioner of the present invention, the box air inlet and the box air outlet are respectively located on either side of the circuit board, and the circuit board is provided with heat dissipation holes. Indoor air at the box air inlet flows through the circuit board through the heat dissipation holes and then flows toward the box air outlet. Thus, driven by the second motor, indoor air enters the box housing from the box air inlet, flows through the circuit board through the heat dissipation holes, and exchanges heat with the circuit board and the electronic components thereon. After heat exchange, the indoor air flows out of the box air outlet and continuously flows through the circuit board, thereby achieving continuous heat dissipation from the electrical box. This method of heat dissipation is simple and effective.

[0027] In some embodiments of the wall-mounted air conditioner of the present invention, the housing air inlet and / or the housing air outlet are arranged in a manner directly opposite the heat dissipation holes in the height direction of the main body. This allows indoor air at the housing air inlet to flow vertically toward the heat dissipation holes and the housing air outlet, shortening the air flow path within the electrical housing and reducing resistance to air flow, thereby increasing air flow velocity and improving heat dissipation efficiency within the electrical housing.

[0028] According to some embodiments of the wall-mounted air conditioner of the present invention, the circuit board is provided with multiple heat dissipation structures on a side facing the box air outlet. Heat dissipation gaps are formed between the multiple heat dissipation structures, allowing indoor air at the heat dissipation holes to flow toward the box air outlet through the heat dissipation gaps. Consequently, when the electrical box is operating, the electronic components generate heat, which is absorbed by the heat dissipation structures. After indoor air enters the heat dissipation holes, it exchanges heat with the heat dissipation structures and some electronic components before flowing toward the box air outlet. This reduces the temperature of the heat dissipation structures and some electronic components, effectively dissipating heat from the electrical box.

[0029] According to some embodiments of the wall-mounted air conditioner of the present invention, the circuit board is provided with multiple heat dissipation structures on a side facing the box air inlet. Heat dissipation gaps are formed between the multiple heat dissipation structures, and indoor air at the box air inlet flows through the heat dissipation gaps toward the heat dissipation holes. Thus, when the electrical box is operating, the electronic components generate heat, which is absorbed by the heat dissipation structures. After indoor air enters the box air inlet, it exchanges heat with the heat dissipation structures and some electronic components before flowing toward the heat dissipation holes and, through the heat dissipation holes, toward the box air outlet. This reduces the temperature of the heat dissipation structures and some electronic components, effectively dissipating heat from the electrical box.

[0030] According to some embodiments of the wall-mounted air conditioner of the present invention, the exhaust outlet is provided on the peripheral wall of the exhaust volute, and the exhaust outlet is configured to open in a direction away from the heat exchange fan along the length of the main body. Thus, the exhaust fan can drive indoor air to flow into the exhaust volute in an up-and-down direction and be discharged from the left side of the exhaust volute, allowing the airflow to be quickly discharged from the housing. This arrangement of the airflow direction can reduce the airflow path, thereby improving the exhaust efficiency of the exhaust fan.

[0031] According to some embodiments of the wall-mounted air conditioner of the present invention, the fresh air inlet is opened downward along the height direction of the main body. In practice, by setting the fresh air inlet opened downward, and at the same time, the axial direction of the fresh air volute is set along the height direction of the main body, when the air is introduced, the air can be introduced directly along the axial direction. Compared with the prior art that adopts radial air inlet, the air inlet path needs to be introduced radially and flow along the axial direction, the path is winding, and is affected by the side wall of the fresh air volute, which may have a large airflow driving resistance. That is, the embodiment of the present invention allows the fresh air to be introduced directly along the axial direction, which can reduce the wind resistance such as the obstruction of the air inlet, and reduce the air inlet path. At the same time, it can be staggered with the exhaust air inlet to reduce the mutual influence between the fresh air and the dirty air.

[0032] According to some embodiments of the wall-mounted air conditioner of the present invention, the fresh air outlet is open toward the front and downward. In practice, the air conditioner is generally installed in the upper part of the room, higher than the user, with the front side of the air conditioner facing the user and indoor objects. The fresh air outlet is open toward the front and downward, so that when the fresh air is discharged into the room, it is smoother and can better contact the user; the heat exchange inlet and outlet are located at the bottom, and the fresh air flowing out of some fresh air outlets can be close to or partially overlap with the air outlet area of ​​the heat exchange outlet. This is conducive to mixing the fresh air with the indoor air after heat exchange. On the one hand, it improves the uniformity of the fresh air after mixing with the indoor air. 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 approaches the indoor temperature, improving the blowing comfort.

[0033] According to some embodiments of the wall-mounted air conditioner of the present invention, the fresh air volute includes: a first volute, which is detachably connected to the exhaust volute; a second volute, which is located on the side of the first volute away from the exhaust volute, and the second volute is detachably connected to the first volute; wherein the first volute and the second volute jointly define a volute cavity, and the fresh air fan is located in the volute cavity; the second volute is formed with the fresh air inlet on the side away from the first volute.

[0034] First, the fresh air fan and the exhaust fan are arranged axially, and the fresh air volute is divided into at least a first volute and a second volute along the axial direction and processed separately, which can reduce the difficulty of manufacturing and assembly, and such a complex shell is convenient for quality control after split manufacturing; the first volute and the exhaust volute are detachably connected, and the second volute and the first volute are detachably connected, which is convenient for assembly and subsequent adjustment and maintenance, and the fresh air can enter the volute cavity formed by the second volute and the first volute from the fresh air inlet on the lower side of the second volute to realize the input of fresh air.

[0035] According to some embodiments of the wall-mounted air conditioner of the present invention, the second volute includes: a second volute half, the second volute half is located on the side of the first volute away from the exhaust volute, and the second volute half is detachably connected to the first volute, the second volute half is provided with an axial vent at the center in the radial direction, the volute cavity is formed between the second volute half and the first volute, the axial air inlet end of the fresh air fan is arranged toward the axial vent, and the second volute half and the first volute surround the fresh air outlet.

[0036] In practice, by setting up a second volute half, and connecting the second volute half to the first volute, a volute cavity for installing a fresh air fan can be formed. When the fresh air fan needs to be replaced and repaired, it is convenient to connect and disassemble it with the first volute, and the second volute half is provided with an axial vent, which can increase the fresh air intake and reduce the weight at the same time.

[0037] According to some embodiments of the wall-mounted air conditioner of the present invention, the second volute further includes: a fan cover, the fan cover is located on the side of the second volute half away from the first volute, and the fan cover is connected to the second volute half, the cavity enclosed by the fan cover and the second volute half is a fresh air cavity, and the fresh air inlet is formed on the fan cover.

[0038] Therefore, through the above-mentioned setting, a fresh air cavity is formed at the air inlet end of the fresh air fan. The fresh air cavity formed in this way can cover the axial air inlet end of the fresh air fan. The fresh air cavity can be used to accommodate air, so that air can enter the fresh air cavity axially from the fresh air inlet, thereby improving the air suction efficiency of the fresh air fan and reducing air suction loss.

[0039] According to some embodiments of the present invention, the wall-mounted air conditioner further includes a purification unit installed within the fresh air chamber and connected to the second volute. The fresh air fan rotates to cause outdoor air entering the fresh air volute to flow through the purification unit and then into the room through the fresh air outlet. Thus, the purification unit is provided at the air inlet end of the fresh air chamber to purify the fresh air blown into the room, thereby improving the cleanliness of the indoor air.

[0040] According to some embodiments of the wall-mounted air conditioner of the present invention, the exhaust fan includes an exhaust wheel and exhaust blades. The exhaust blades are located at the outer edge of the exhaust wheel, and the exhaust blades extend along the axial direction of the exhaust wheel in a direction away from the fresh air fan. In this way, the air flow is easily inhaled, the wind resistance of the air intake is reduced, and the air intake volume of the exhaust is guaranteed.

[0041] The exhaust fan includes a raised portion provided on the exhaust wheel disc, the center of the raised portion is located on the axis of the exhaust fan, and the raised portion extends relative to the exhaust wheel disc in a direction toward the fresh air fan, so that a side of the raised portion close to the second motor forms a receiving groove for the second motor;

[0042] At least a portion of the stator part and at least a portion of the rotor part are accommodated in the accommodating groove.

[0043] Thus, at least a portion of the stator part and at least a portion of the rotor part are accommodated in the accommodating groove formed by the protrusion, and the accommodating groove is used to accommodate part of the structure of the stator part and the rotor part. At the same time, the protrusion can also be used to support the stator part, thereby improving the integration of the first volute and the exhaust fan, and also improving the stability of the second motor connected to the first volute; and the protrusion can make part of the structure of the second motor extend into the exhaust fan, which can save the height space of the overall structure in the main body, and the structure is compact, and can ensure that the second motor and the exhaust fan are connected reliably and stably.

[0044] According to some embodiments of the wall-mounted air conditioner of the present invention, the first volute includes a first volute end plate and a first volute enclosure plate, and the first volute enclosure plate is formed by extending along the edge of the first volute end plate in a direction away from the exhaust volute, so that an airflow can be accommodated to realize the flow of airflow.

[0045] Wherein, a central portion of the first volute end plate forms a recessed portion facing the fresh air fan, and at least a portion of the raised portion is located in the recessed portion.

[0046] In practice, a protrusion is formed by the hub of the exhaust fan to accommodate the second motor, and the protrusion can improve the structural strength of the exhaust fan. On the other hand, the main part of the second motor is assembled in the protrusion, which occupies more of the exhaust air duct and less of the fresh air duct, which matches the design that the fresh air volume is greater than the exhaust air volume. The connection method is simple and the centering degree is high, which can improve the assembly accuracy. A part of the protrusion is located in the recessed part of the first volute end plate, and the first volute enclosure is arranged around the outer periphery of the exhaust fan. The recessed part can also be used to accommodate the protrusion and the main part of the second motor. Therefore, when the first volute end plate is connected to the exhaust fan, the protrusion and the recessed part share a part of the axial space, that is, a part of the axial space is shared between the first volute end plate and the exhaust fan, thereby saving axial space, improving the integration of the connection between the fresh air volute and the exhaust volute, and reducing the volume of the overall structure.

[0047] According to some embodiments of the wall-mounted air conditioner of the present invention, a perforated portion is provided at the center of the recessed portion, through which the second output shaft is connected to the fresh air fan. Thus, during the connection process, only the second output shaft needs to be passed through the first volute end plate, which improves sealing, reduces the possibility of fresh air and exhaust air flowing back and forth, and minimizes airflow disturbances. Furthermore, the connection method is simple and easy to assemble and disassemble.

[0048] According to some embodiments of the wall-mounted air conditioner of the present invention, the first volute and the second volute define the fresh air outlet. In practice, the volute cavity formed by the first volute and the second volute is used to install a fresh air fan, and a fresh air outlet can be set on the front side of the second volute. When the second volute and the first volute are connected, the fresh air outlet is located on the front side of the fresh air volute. Then, when the fresh air fan in the fresh air volute rotates, it can bring fresh air out of the fresh air outlet. In other words, there is no need to set up a fresh air outlet duct. The fresh air outlet can be defined by the first volute and the second volute, reducing the complexity of the structure, shortening the fresh air outlet path, and improving the air outlet efficiency.

[0049] According to some embodiments of the wall-mounted air conditioner of the present invention, the fresh air fan includes: a fresh air wheel, the fresh air wheel being coaxially arranged with the second motor and connected to the second output shaft of the second motor; and fresh air blades, including a first fresh air blade, extending from the fresh air wheel in a direction away from the exhaust fan. Thus, this arrangement facilitates air intake, reduces wind resistance, and ensures a sufficient amount of fresh air.

[0050] According to some embodiments of the wall-mounted air conditioner of the present invention, the fresh air blades further include a second fresh air blade extending from the fresh air wheel toward the exhaust fan. Thus, the second fresh air blades and the first fresh air blades form two sets of blades, i.e., the fresh air fan includes a double layer of centrifugal blades. This double layer of centrifugal blades helps increase the overall structural strength of the centrifugal fan while meeting high air volume requirements.

[0051] According to some embodiments of the wall-mounted air conditioner of the present invention, in the axial direction of the fresh air fan, the length of the second fresh air blade is shorter than the length of the first fresh air blade. Therefore, when the axial length of the first fresh air blade is greater, the longer blade can capture more air and promote air flow, which is beneficial for the first fresh air blade to obtain a larger fresh air intake volume, and the wind pressure is also increased, which can improve the wind gathering effect. The use of a shorter second fresh air blade is beneficial to achieve the supplement of fresh air intake. The volume between the first fresh air blade and the first volute end plate is small, that is, the airflow volume is small. When the second fresh air blade rotates, it can drive this part of the airflow and discharge it from the fresh air outlet. In addition, the gap between the first volute end plate and the exhaust fan is small, the volume is small, that is, the air flow volume is small, so when the air flow volume is small, there is no need to set a longer second fresh air blade.

[0052] According to some embodiments of the wall-mounted air conditioner of the present invention, the fresh air disc is formed with a disc hole, and the distance from the disc hole to the center of the fresh air disc is smaller than the distance from the fresh air blade to the center of the fresh air disc. Thus, this arrangement facilitates the second fresh air blade, when drawing air through the disc hole, to guide the airflow axially into the space where the second fresh air blade is located, thereby reducing turbulence caused by competing with the first fresh air blade for air.

[0053] According to some embodiments of the wall-mounted air conditioner of the present invention, the total axial thickness of the stator, rotor, and motor housing is M, and the axial thickness of the fresh air fan is W, where W>M. Thus, by setting the axial thickness of the fresh air fan to be greater than the total axial thickness of the stator, rotor, and motor housing of the second motor, while satisfying the second motor's need to simultaneously drive the fresh air fan and the exhaust fan, the axial proportion of the fresh air fan is increased, thereby increasing the amount of fresh air brought in by the fresh air fan and reducing the space occupied by the second motor. This increases the fresh air volume while also improving the comfort of indoor users.

[0054] According to some embodiments of the wall-mounted air conditioner of the present invention, the area of ​​the outer circular curved surface of the fresh air fan is S1, and the area of ​​the outer circular curved surface of the exhaust fan is S2;

[0055] S1=πD1*W, D1 is the outer diameter of the fresh air fan, and W is the axial thickness of the fresh air fan;

[0056] S2=πD2*N, D2 is the outer diameter of the exhaust fan, and N is the axial thickness of the exhaust fan;

[0057] Satisfies, S1>S2. This helps achieve a large fresh air volume when the space size of the whole machine is limited, and the air is sucked from the unlimited outdoor space and sent indoors, which consumes less energy than sucking air from a relatively closed indoor space and exhausting it outdoors.

[0058] For the wall-mounted air conditioner according to some embodiments of the present utility model, the axial thickness of the exhaust fan is N, and the axial thickness of the fresh air fan is W, where N < W. Thus, while ensuring that the fresh air volume is greater than the exhaust air volume, the main body part of the fresh air fan has a greater axial thickness, so that the structural strength is greater and it can bear a greater torque.

[0059] For the wall-mounted air conditioner according to some embodiments of the present utility model, the total thickness of the stator part, the rotor part and the motor housing in the axial direction is M, and the axial thickness of the exhaust fan is N, M > N. Thus, it is ensured that the second motor can support the rotation of the two fans, and the local part of the second motor can extend into the fresh air fan, which can not only improve the sufficient supporting force of the second motor, but also improve the integration degree of the second motor with the fresh air fan and the exhaust fan, and improve the integrity of the synchronous rotation of the fresh air fan and the exhaust fan.

[0060] For the wall-mounted air conditioner according to some embodiments of the present utility model, the exhaust volute includes a wind guiding ring, the wind guiding ring is in the shape of a circular tube, and the diameter of the wind guiding ring gradually decreases in the direction towards the fresh air volute, and the area surrounded by the wind guiding ring forms the exhaust air inlet. Thus, the setting of the wind guiding ring can effectively collect the dispersed air flow, converge it into a relatively concentrated air flow and send it into the exhaust fan, making the air intake smoother and more efficient, increasing the air intake volume of the exhaust fan, and thus improving the exhaust efficiency.

[0061] For the wall-mounted air conditioner according to some embodiments of the present utility model, the exhaust fan includes: an exhaust wheel disc and exhaust blades, the exhaust wheel disc is connected to the motor housing of the second motor, the exhaust blades are connected to the side of the exhaust wheel disc away from the fresh air volute, and the exhaust blades are multiple and arranged circumferentially;

[0062] The edge of the exhaust blade away from the exhaust wheel disc is the blade side edge, and the distance between the part of the blade side edge close to the second motor and the exhaust wheel disc decreases, and all the exhaust blades form a side edge depression at the place where the distance decreases; the end of the wind guiding ring is located in the side edge depression.

[0063] Thus, the wind guiding ring and the exhaust fan can have partial overlap in the axial direction. Without increasing the axial dimension of the exhaust volute on the premise of setting the wind guiding ring, and after the exhaust fan rotates, the surface swept by the exhaust blades in the gradual change section forms a funnel surface with a decreasing diameter, which is beneficial to the concentration of the air flow towards the center and reduces the energy loss caused by air flow disturbance.

[0064] According to some embodiments of the wall-mounted air conditioner of the present invention, a casing air inlet is provided on the casing at the end where the second motor is located, and the casing air inlet is located at the top of the main body. A first connecting air duct is formed between the casing air inlet and the exhaust air inlet. The rotation of the exhaust fan drives the indoor air to enter the first connecting air duct from the casing air inlet, and allows the indoor air to enter the exhaust volute through the exhaust air inlet.

[0065] Therefore, that is to say, there is no need to connect the physical pipe between the air inlet of the casing and the exhaust air inlet, and the air flow is sucked in from the top by wind pressure. The air inlet of the casing is located at the top of the casing, that is, in an area that is not visible to the user. The air inlet of the casing is hidden, which can improve the appearance of the appearance; and the distance between the air inlet of the casing and the exhaust air inlet located at the top is relatively close, and the exhaust air inlet path is that the exhaust air first enters the air inlet of the casing, and the air inlet of the casing is located axially above the exhaust volute. Then, the air can enter the exhaust air inlet axially from the air inlet of the casing, which is compared with the prior art in which the exhaust air inlet enters along the radial direction of the exhaust volute. After entering, during the rotation of the exhaust fan, it is affected by the resistance of the exhaust volute side wall, and the radial exhaust wind enters radially and flows axially, forming a winding exhaust air inlet path, resulting in large exhaust resistance and small exhaust air intake volume. The exhaust air of the embodiment of the utility model directly enters the exhaust air inlet along the axial direction of the exhaust fan, the exhaust air inlet path is unobstructed, and the exhaust air inlet path is reduced, thereby increasing the exhaust air intake volume; and after the indoor air enters the first connecting air duct through the casing inlet, it can directly enter the exhaust air inlet, increasing the air intake volume of the exhaust air inlet, thereby improving the air intake effect.

[0066] Furthermore, setting the indoor air to enter in a straight path allows the indoor air to flow quickly to the electrical box, which can quickly cool the circuit boards, electronic components, etc. in the electrical box to maintain safe operation of the electrical box.

[0067] According to some embodiments of the wall-mounted air conditioner of the present invention, a casing air inlet is provided on the end of the casing where the second motor is located, and the casing air inlet is located on the side of the main body. The exhaust fan rotates to drive indoor air into the interior of the casing through the casing air inlet, and allows the indoor air to enter the exhaust volute through the exhaust air inlet.

[0068] In this way, indoor air can enter the exhaust air inlet from the side of the main body, and the gas can flow to the exhaust fan through a curved path, realizing a different air intake method relative to the above.

[0069] According to some embodiments of the present invention, the wall-mounted air conditioner further includes an exhaust duct, which is extended along the height direction of the main body, the upper end of the exhaust duct is connected to the exhaust outlet, and the lower end of the exhaust duct is extended to the outside of the casing.

[0070] In this way, indoor air can be discharged to the outside through the exhaust duct, and the exhaust duct is arranged to extend along the height direction of the main body, rather than extending along the front-to-back direction to make the main body too thick, so that the wall-mounted air conditioner can still maintain a light and thin appearance, and the exhaust duct extends outside the shell and will not take up too much additional space, so that the height size of the main body can be controlled.

[0071] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0073] Figure 1 This is a structural diagram of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0074] Figure 2 This is a schematic diagram of the internal structure of the main body of the wall-mounted air conditioner according to the embodiment of the utility model. Figure 1 ;

[0075] Figure 3 This is a schematic diagram of the internal structure of the main body of the wall-mounted air conditioner according to the embodiment of the utility model. Figure 2 ;

[0076] Figure 4 This is a cross-sectional view of a two-way ventilation assembly and an electrical appliance box of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0077] Figure 5 This is a structural schematic diagram of a circuit board of an electrical appliance box of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0078] Figure 6 This is a schematic diagram of the structure of the two-way ventilation component of the wall-mounted air conditioner according to the embodiment of the utility model. Figure 1 ;

[0079] Figure 7 This is a schematic diagram of the structure of the two-way ventilation component of the wall-mounted air conditioner according to the embodiment of the utility model. Figure 2 ;

[0080] Figure 8 is a cross-sectional view of a two-way ventilation assembly of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0081] Figure 9 is a cross-sectional view of an exhaust fan of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0082] Figure 10 1 is a side view of a fresh air fan of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0083] Figure 11 This is a front view of a fresh air fan of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0084] Figure 12 This is an exploded view of a two-way ventilation assembly of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0085] Figure 13 is an exploded view of the second motor of the wall-mounted air conditioner according to an embodiment of the present utility model;

[0086] Figure 14 is a cross-sectional view of a second motor of a wall-mounted air conditioner according to an embodiment of the present utility model;

[0087] Figure 15 This is a schematic diagram of the assembly relationship between the exhaust volute, the fixing bracket and the exhaust fan of the wall-mounted air conditioner according to an embodiment of the present utility model;

[0088] Figure 16 It is a structural schematic diagram of the base of a wall-mounted air conditioner according to an embodiment of the present utility model.

[0089] Reference numerals:

[0090] Wall-mounted air conditioner 10000, main body 1000,

[0091] Housing 1, accommodating chamber V1, first chamber V11, second chamber V12,

[0092] Heat exchange air inlet 101, heat exchange air outlet 102, casing air inlet 103, first connecting air duct V04, avoidance port 104, casing air outlet 105,

[0093] Indoor heat exchanger 2,

[0094] Base 3, snail tongue air duct V03,

[0095] Heat exchange fan 41, first motor 42, first output shaft 421,

[0096] The second motor 5 comprises a stator 51, a rotor 52, a motor housing 53, and a second output shaft 54.

[0097] Fresh air fan 6, fresh air wheel 61, wheel hole 612, fresh air blade 62, first fresh air blade 621, second fresh air blade 622,

[0098] Exhaust fan 7, accommodating slot V07, exhaust wheel 71, exhaust blade 72, blade side edge 721, straight section 7211, gradient section 7212, side edge recess 73, protrusion 74,

[0099] Fresh air volute 8, fresh air duct V01, volute cavity V011, fresh air cavity V012, cavity V0121, fresh air inlet 801, fresh air outlet 802, installation port 803,

[0100] First volute 81, first volute end plate 811, first volute enclosure 812, recessed portion 813, perforated portion 814,

[0101] Second volute 82, second volute half 821, axial ventilation hole 8211, fan cover 822,

[0102] Exhaust volute 9, exhaust duct V02, exhaust air inlet 901, exhaust air outlet 902, second volute enclosure 906, air guide ring 91,

[0103] Purification element 11, filter 111, first switching valve 12,

[0104] Electrical box 13, box cover 131, box cavity 1311, box air inlet 1312, box air outlet 1313, maze heat dissipation channel 132, circuit board 133, heat dissipation hole 1331, heat dissipation structure 1332, heat dissipation gap 1333,

[0105] Fresh air introduction pipe 141, exhaust duct 142, air guide grille 16, fixed bracket 17, bracket end plate 171, bracket enclosure 172, wire threading hole 173, installation cavity 174, insulation sleeve 18. DETAILED DESCRIPTION

[0106] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0107] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0108] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0109] An embodiment of the present utility model provides a wall-mounted air conditioner 10000.

[0110] Typically, the air conditioner is a split-type air conditioner, including an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by a pipeline to transmit refrigerant. The indoor unit includes an indoor heat exchanger 2 and a heat exchange fan 41.

[0111] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan and a throttling device. The compressor, outdoor heat exchanger, throttling device and indoor heat exchanger 2 connected in sequence form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor heat exchanger and the indoor heat exchanger 2 respectively to realize the cooling mode or heating mode of the air conditioner.

[0112] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0113] The outdoor heat exchanger is configured to exchange heat between outdoor air and the refrigerant transported through the outdoor heat exchanger. For example, in the air conditioner's cooling mode, the outdoor heat exchanger operates as a condenser, causing the refrigerant compressed by the compressor to condense by dissipating heat to the outdoor air through the outdoor heat exchanger. In the air conditioner's heating mode, the outdoor heat exchanger operates as an evaporator, causing the decompressed refrigerant to absorb heat from the outdoor air through the outdoor heat exchanger and evaporate.

[0114] In some embodiments, the outdoor heat exchanger may include heat exchange fins to expand the contact area between the outdoor air and the refrigerant transmitted in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0115] The outdoor fan is configured to draw outside air into the outdoor unit and send the outside air after heat exchange with the outdoor heat exchanger to the outside. The outdoor fan provides power for the flow of the outdoor air.

[0116] A throttle element is connected between the outdoor heat exchanger and the indoor heat exchanger 2. It regulates the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger 2, thereby adjusting the refrigerant flow rate 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 throttle element can be a throttle tube, an electronic valve, or the like. If the throttle element is an electronic valve, the throttle opening is adjustable to adjust the flow rate and pressure of the refrigerant flowing through the throttle element.

[0117] In some solutions, the air conditioner may include a four-way valve connected to the refrigerant circuit, and the four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner performs cooling mode or heating mode.

[0118] The indoor heat exchanger 2 is configured to exchange heat between the indoor air and the refrigerant transmitted in the indoor heat exchanger 2. In some embodiments, the indoor heat exchanger 2 may include heat exchange fins to increase the contact area between the indoor air and the refrigerant transmitted in the indoor heat exchanger 2, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0119] The heat exchange fan 41 is configured to draw indoor air into the indoor unit and deliver the indoor air after heat exchange with the indoor heat exchanger 2 to the room. The heat exchange fan 41 provides power for the flow of indoor air.

[0120] The air conditioner may include a control device, which is primarily used to control the operating frequency of the compressor and the opening of the throttle element. Some control devices may also control the speed of the outdoor fan and the speed of the heat exchange fan 41. The control device is connected to the compressor, throttle element, outdoor fan, and heat exchange fan 41 via a data line to transmit communication information.

[0121] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor (microprocessor), or an application specific integrated circuit (ASIC), and may be configured to perform corresponding operations described in the control device when the processor executes a program stored in a non-temporary computer-readable medium coupled to the control device.

[0122] Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disk, floppy disk, or tape), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks, or keyboard drives).

[0123] Currently, most wall-mounted air conditioners are limited in size and weight, typically only capable of cooling or heating the indoor air. If users leave the air conditioner on for extended periods and find the indoor air stale and stuffy, they might need to open windows for ventilation. This is not only cumbersome, but also causes the indoor cooling or heating to quickly escape through the windows while they're open, impacting comfort.

[0124] Some fresh air air conditioners in the related art draw fresh air from the outside through a fresh air device and exhaust the indoor air through an exhaust device. However, due to factors such as unreasonable structural design, the quality of the fresh air blown into the room by the fresh air device is low, and it fails to achieve the purpose of improving indoor air quality.

[0125] In order to solve the above problems, some embodiments of the present invention propose a wall-mounted air conditioner 10000. By adjusting and setting the structure and relative positions of components such as the second motor, exhaust fan, and motor housing, the cleanliness of the inhaled fresh air can be improved while exhausting and sucking air into the room at the same time.

[0126] For example, the wall-mounted air conditioner 10000 is an indoor unit. The wall-mounted air conditioner 10000 is usually installed on a wall, for example, can be installed in the upper area of ​​an indoor wall.

[0127] Reference below Figures 1-16Description: According to the wall-mounted air conditioner 10000 of the embodiment of the present invention, a large amount of indoor air can be discharged by driving the exhaust fan 7 to rotate through the second motor 5 to realize the exhaust function, and a part of the indoor air can be used to cool the internal structure of the electrical box 13 to realize the cooling function, which can avoid the temperature of the electronic components being too high and make the internal structure of the electrical box 13 operate within a certain temperature range. In this way, the electronic components can provide greater power, the input power of the second motor 5 is increased, and the speed of the second motor 5 is increased, thereby increasing the fresh air volume and exhaust volume.

[0128] like Figures 1-16 As shown, according to an embodiment of the present invention, a wall-mounted air conditioner 10000 is Figure 1 and Figure 2 As shown, it includes: a main body 1000.

[0129] The main body 1000 includes: a housing 1. Figure 1 As shown, a housing V1 is formed inside the housing 1, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the housing 1. The housing 1 can play a protective role and constitute the overall external structure of the wall-mounted air conditioner 10000.

[0130] Typically, the housing 1 is an elongated shell with its length running horizontally, meaning it is mounted horizontally on a wall. In actual products, to drain condensed water, the housing 1 is mounted horizontally on a wall in some embodiments at a small angle to the horizontal plane.

[0131] Reference Figure 2 The main body 1000 also includes an indoor heat exchanger 2, which is disposed within the housing chamber V1. As described above, the indoor heat exchanger 2 is a link in the refrigerant circuit. Refrigerant circulates within the indoor heat exchanger 2, cooling or heating the air flowing through the surface of the indoor heat exchanger 2. In a wall-mounted air conditioner 10000, the indoor heat exchanger 2 typically extends along the length of the housing 1.

[0132] 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.

[0133] Reference Figure 2 、 Figure 3 and Figure 16 The main body 1000 also includes a base 3, which is disposed within the accommodating cavity V1. The base 3 serves as a mounting support structure within 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. After indoor air enters the housing 1, it is guided by the volute-tongue air duct V03, ensuring that the indoor air encounters minimal resistance as it flows through the indoor heat exchanger 2.

[0134] Reference Figure 2 The main body 1000 also includes: a heat exchange fan 41, which is arranged in the volute tongue air duct V03.

[0135] In some embodiments, the heat exchange fan 41 is, for example, a cross-flow fan, which produces low noise and high airflow. The airflow velocity of the cross-flow fan is evenly distributed along the fan's axis, facilitating a greater air delivery distance and range. Furthermore, when a cross-flow fan is used and positioned along the length of the main body 1000, the driven airflow can flow through the entire indoor heat exchanger 2, ensuring balanced heat exchange efficiency across each position within the indoor heat exchanger 2.

[0136] Reference Figure 2 and Figure 3 The main body 1000 further includes a first motor 42 disposed in the accommodating cavity V1. The first motor 42 is used to drive the heat exchange fan 41 to rotate, so that the air inside the air conditioner exchanges heat with the indoor space.

[0137] By providing a heat exchange outlet 102 and a heat exchange inlet 101 in the housing 1, the heat exchange fan 41 can draw indoor air into the housing 1 through the heat exchange inlet 101 when in operation. After the indoor air exchanges heat with the indoor heat exchanger 2, the heat exchanged air is delivered to the room through the heat exchange outlet 102.

[0138] In this way, the indoor ambient temperature can be regulated. The indoor heat exchanger 2 can be used as an evaporator to enable the heat exchange outlet 102 to provide cooling airflow toward the indoor space, or the indoor heat exchanger 2 can be used as a condenser to enable the heat exchange outlet 102 to provide heating airflow toward the indoor space.

[0139] 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 enter from the top and exit from the bottom.

[0140] For example, the height direction of the main body 1000 is the up-down direction.

[0141] It is understood that the main body 1000 is usually mounted on a wall. To avoid interfering with people's daily lives, the main body 1000 is usually hung at a higher position. By setting the main body 1000 to blow out the heated air from below, the blown heated air is less likely to be blocked by the roof or the ground. In this way, the heated air encounters less resistance and consumption during the blowing process, and the air supply range is wide, so that the heated air can flow to the entire indoor space as quickly as possible, thereby improving the heat exchange efficiency.

[0142] Reference Figure 1The heat exchange air inlet 101 is located above the heat exchange air outlet 102. The heat exchange air inlet 101 can take in air from above, which can avoid taking in air from the heat exchange air outlet 102, and avoid the heat exchange air being blown out from the heat exchange air outlet 102 and being directly sucked into the heat exchange air inlet 101, thereby reducing the heat exchange air idling and not participating in the indoor heat exchange process.

[0143] In some embodiments, the heat exchange air inlet 101 is located at the top of the casing 1, that is, in an area that is invisible to the user. Hiding the heat exchange air inlet 101 can improve the appearance of the wall-mounted air conditioner 10000.

[0144] In some embodiments, the heat exchange air outlet 102 is located directly in front of the housing 1 , that is, the heat exchange air outlet 102 blows air toward the front side of the main body 1000 .

[0145] 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. Therefore, when the heat exchange outlet 102 is located directly in front of the casing 1, the air outlet is away from the wall, the blowing resistance is small, and the air supply range is wide.

[0146] In some embodiments, the heat exchange air outlet 102 is located on the front side of the housing 1 and near the bottom. For example, the heat exchange air outlet 102 is located at the front lower corner of the housing 1. In this case, the heated air blown out of the heat exchange air outlet 102 flows forward and downward at the same time. In this way, after the heated air is delivered to a certain distance, it can sink and fall on people or objects on the ground, so that people or objects on the ground can be placed in a suitable indoor environment as soon as possible.

[0147] In some embodiments, the heat exchange fan 41 is located on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101. It is understood that the heat exchange fan 41 is a power drive component that drives the indoor air to exchange heat with the indoor heat exchanger 2 by rotating, and is also a power drive component for air supply.

[0148] By placing the heat exchange fan 41 on the side of the indoor heat exchanger 2 away from the heat exchange air inlet 101, the air force generated when the heat exchange fan 41 rotates can be evenly distributed. A part of it is distributed to the air inlet side, so that the inhaled air can overcome the wind resistance generated by the indoor heat exchanger 2 when flowing into the volute air duct V03. The other part is distributed to the air supply side, so that the heat-exchanged air can be transported over a longer distance when blown out from the heat exchange air outlet 102.

[0149] In some embodiments, as Figure 2 and Figure 3As shown, the first motor 42 is located at one end of the main body 1000 in the longitudinal direction. This facilitates installation and maintenance of the first motor 42, and prevents the main body 1000 from becoming excessively tall or thick due to the placement of the first motor 42. Here, the height of the main body 1000 is aligned with the vertical direction, and the thickness of the main body 1000 is aligned with the front-to-back direction.

[0150] The first motor 42 has a first output shaft 421, which is connected to the heat exchange fan 41. The first output shaft 421 extends along the length of the main body 1000, allowing the first motor 42 to be connected to the heat exchange fan 41 along the length of the main body 1000. In this way, the first motor 42 can drive the heat exchange fan 41, which in turn drives the airflow, thereby drawing indoor air into the housing 1 through the heat exchange inlet 101. The drawn air then exchanges heat with the indoor heat exchanger 2, and the heat-exchanged air is then delivered to the indoor room through the heat exchange outlet 102. Furthermore, more air is available along the length of the main body 1000 for heat exchange with the indoor heat exchanger 2, resulting in high air heat exchange efficiency.

[0151] In some embodiments, as Figure 8 As shown, the wall-mounted air conditioner 10000 further includes a second motor 5 , which is disposed in the accommodating cavity V1 and is located at the other end of the main body 1000 in the longitudinal direction.

[0152] In this way, the first motor 42 and the second motor 5 are located at both ends of the length direction of the main body 1000. On the one hand, the two motors are separated and far away, and the mutual electromagnetic interference 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 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, slim and thin appearance.

[0153] Reference Figure 13 and Figure 14 The second motor 5 includes a stator 51 and a rotor 52. The stator 51 and the rotor 52 are the main parts of the second motor 5. The stator 51 has a coil wound around it. When alternating current is applied to the coil, an alternating magnetic field is generated. The rotor 52 is induced in the alternating magnetic field and rotates.

[0154] For example, the rotor portion 52 can be a magnetic ring or a magnetic tile. For example, a magnetic ring can reduce magnetic flux leakage loss, enhance magnetic flux, and improve the power output efficiency of the second motor 5. Furthermore, a magnetic ring provides a uniform magnetic field distribution, improved anti-interference performance, and higher mechanical precision.

[0155] The second motor 5 is an outer rotor motor, with a rotor portion 52 disposed radially around the outside of the stator portion 51. This outer rotor motor design not only simplifies the structure of the second motor 5 but also allows for a larger diameter, since the rotor portion 52 is disposed radially around the outside of the stator portion 51. This allows for greater torque, making it suitable for low-speed, high-torque, and direct drive applications. This means that the second motor 5 can output power without a reducer to reduce speed and increase torque, saving space required by the reducer.

[0156] In addition, the rotor portion 52 is located radially outward from the stator portion 51, with a larger heat dissipation area and better heat dissipation performance, which is conducive to the stable operation of the second motor 5. Moreover, with this arrangement, the diameter of the second motor 5 can be controlled to be smaller, without occupying the air flow channel space.

[0157] Reference Figure 13 and Figure 14 The second motor 5 further includes: a motor housing 53 , which can support and protect the main body of the second motor 5 .

[0158] The motor housing 53 is fixedly connected to the rotor portion 52, and the motor housing 53 rotates synchronously with the rotor portion 52. In this way, the rotor portion 52 can be fixed by the motor housing 53, which is convenient for connection with an external structure.

[0159] The second motor 5 further includes a second output shaft 54, which is fixedly connected to the motor housing 53. Both ends of the second output shaft 54 ​​can be supported and connected to the motor housing 53. In other words, the main body of the second motor 5 is spaced a certain distance from the indoor heat exchanger 2 and the heat exchange fan 41, thereby reducing vibration transmitted to the indoor heat exchanger 2 and the heat exchange fan 41 by the operation of the second motor 5.

[0160] And the second output shaft 54 ​​extends along the height direction of the main body 1000, that is, the extension direction of the second output shaft 54 ​​is perpendicular to the extension direction of the first output shaft 421. In this way, the driving force of the second motor 5 at the other end of the main body 1000 is transmitted along the height direction of the main body 1000. For example, the second output shaft 54 ​​can output the driving force downward along the height direction of the main body 1000, and the second output shaft 5 can also output the driving force upward along the height direction of the main body 1000 to achieve different driving modes.

[0161] Reference Figure 8 The wall-mounted air conditioner 10000 also includes: a fresh air fan 6, which is a centrifugal fan with axial air intake and radial air discharge. The fresh air fan 6 is connected to the second output shaft 54. The axial direction of the fresh air fan 6 is along the height direction of the main body 1000, and in the height direction of the main body 1000, the fresh air fan 6 is located below the stator part 51.

[0162] Reference Figure 8The wall-mounted air conditioner 10000 further includes an exhaust fan 7, which is a centrifugal fan with axial air intake and radial air discharge. The exhaust fan 7 is sleeved radially outward of the motor housing 53 and is fixedly connected to the motor housing 53. The axial direction of the exhaust fan 7 is along the height direction of the main body 1000. In the height direction of the main body 1000, the exhaust fan 7 is located above the fresh air fan 6. For example, when the second motor 5 is in operation, the fresh air fan 6 and the exhaust fan 7 are driven to rotate synchronously.

[0163] Among them, the axial direction of the exhaust fan 7, the axial direction of the fresh air fan 6 and the axial direction of the second output shaft 54 ​​are all along the height direction of the main body 1000, so that the second motor 5 can be connected to the fresh air fan 6 along the height direction of the main body 1000 through the second output shaft 54, and the second motor 5 transmits driving force from top to bottom. The exhaust fan 7 is arranged on the radial outer side of the motor housing 53, and the exhaust fan 7 is located above the fresh air fan 6. This arrangement can occupy the vertical space at the other end of the main body 1000, so that the second motor 5 can simultaneously drive the fresh air fan 6 and the exhaust fan 7 to rotate at the same time in the height direction of the main body 1000 to realize the vertical driving mode.

[0164] After the above setting, the fresh air fan 6 and the exhaust fan 7 both use centrifugal fans and are connected to the same motor, which not only saves the number of motors, but also keeps the two centrifugal fans stacked along the axial direction of the second motor 5, that is, the two centrifugal fans are stacked along the height direction of the main body 1000.

[0165] Centrifugal fans offer a compact structure, high air volume, and low noise. Fan noise decreases significantly as the speed decreases. Therefore, smaller centrifugal fans can be used for fresh air fan 6 and exhaust fan 7 to meet high air volume requirements. Centrifugal fans also produce low vibration noise and are less likely to resonate with indoor heat exchanger 2, thus reducing overall vibration and noise within wall-mounted air conditioner 10000.

[0166] Both fresh air fan 6 and exhaust fan 7 utilize centrifugal fans, allowing for optimally arranged wind directions. For example, fresh air fan 6 draws air axially and discharges air radially, while exhaust fan 7 draws air axially and discharges air radially. Fresh air fan 6 and exhaust fan 7 draw air from opposite ends of the main body 1000, and are then driven to discharge both fresh air and exhaust air radially. The fresh air and exhaust air flow paths do not need to overlap or intersect axially. This helps reduce the number of avoidance angles in the fresh air and exhaust air paths, thereby reducing wind resistance and energy consumption, ensuring adequate air volume, and lowering noise.

[0167] Therefore, by setting the axial directions of the exhaust fan 7 and the fresh air fan 6 along the height direction of the main body 1000, and the fresh air fan 6 and the exhaust fan 7 are both set to take in air axially and discharge air radially, the air intake volume of the fresh air fan 6 and the exhaust fan 7 can be increased respectively, thereby meeting the use requirements of the fresh air volume and exhaust air volume.

[0168] Reference Figure 6-Figure 8 The wall-mounted air conditioner 10000 also includes: a fresh air volute 8, a fresh air duct V01 is formed in the fresh air volute 8, a fresh air fan 6 is installed in the fresh air volute 8, and a fresh air inlet 801 and a fresh air outlet 802 are formed on the fresh air volute 8.

[0169] The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air volute 8 from the fresh air inlet 801 , and allows the outdoor air entering the fresh air volute 8 to enter the room from the fresh air outlet 802 .

[0170] Reference Figure 6-Figure 8 The wall-mounted air conditioner 10000 further includes an exhaust volute 9, an exhaust duct V02 formed therein, an exhaust fan 7 mounted within the exhaust volute 9, and an exhaust inlet 901 and an exhaust outlet 902 formed therein. The exhaust inlet 901 opens upward along the vertical direction of the main body 1000, meaning that airflow above the exhaust inlet 901 can enter the exhaust volute 9 from top to bottom through the exhaust inlet 902.

[0171] The rotation of the exhaust fan 7 allows indoor air to enter the exhaust volute 9 from the exhaust air inlet 901, and allows the indoor air entering the exhaust volute 9 to be discharged to the outside through the exhaust air outlet 902.

[0172] In some embodiments, the fresh air volute 8 and the fresh air fan 6 form a fresh air device. The fresh air fan 6 is disposed within the fresh air duct V01 and is used to drive airflow in an upward and downward direction from the fresh air inlet 801 to the fresh air outlet 802 and into the room. The operation of the fresh air fan 6 provides the driving force for the fresh air flow.

[0173] Therefore, by setting up the fresh air duct V01 in conjunction with the fresh air fan 6, when the indoor air is relatively dirty or the air quality is poor, the fresh air outside can be driven into the indoor environment through the fresh air fan 6 to improve the indoor airflow environment.

[0174] In some embodiments, the exhaust volute 9 and the exhaust fan 7 form an exhaust device. The exhaust fan 7 is disposed within the exhaust duct V02 and is used to drive airflow in an upward and downward direction from the exhaust inlet 901 to the exhaust outlet 902. The operation of the exhaust fan 7 provides the power to move the dirty airflow.

[0175] Therefore, by setting up the exhaust duct V02 and cooperating with the exhaust fan 7, when the indoor air is relatively polluted or the air quality is poor, the exhaust fan 7 can suck out the polluted air in the indoor space. In this way, when the indoor air volume is reduced, fresh air will be sucked in from the outside or from other rooms through doors and windows, thereby reducing the pollution level of the indoor air.

[0176] In addition, the first output shaft 421 of the first motor 42 and the second output shaft 54 ​​of the second motor 5 are perpendicular. The first output shaft 421 of the first motor 42 is arranged along the length direction of the casing 1, and the corresponding heat exchange fan 41 is arranged along the length direction of the casing 1, which is conducive to the driven airflow to flow through the entire indoor heat exchanger 2, thereby ensuring the balance of the heat exchange efficiency of each position of the indoor heat exchanger 2.

[0177] The second motor 5 is arranged along the height direction of the main body 1000, and the axial direction of the exhaust fan 7 is also arranged in the vertical direction. The exhaust air inlet 901 of the exhaust fan 7 is opened upward, that is, the axial direction of the exhaust fan 7 is consistent with the opening direction of the exhaust air inlet 901. When the air flow enters the exhaust volute 9 from the exhaust air inlet 901, the blades of the exhaust fan 7 rotate, and the air flow is directly brought into the exhaust volute 9 along the axial direction of the exhaust fan 7 in a shorter path, thereby shortening the exhaust air inlet path and being unobstructed, which further reduces the exhaust air inlet wind resistance. The amount of air entering the exhaust volute 9 from the exhaust air inlet 901 increases, thereby increasing the exhaust volume of indoor dirty air. At the same time, the axial direction of the fresh air fan 6 is also set along the height direction of the main body 1000, and enters the fresh air volute 8 along the axial direction. When the outdoor fresh air enters the fresh air volute 8 from the axial direction, the blades of the fresh air fan 6 rotate and bring the fresh air directly into the fresh air volute 8. The path of the fresh air intake is short, unobstructed, and the wind resistance is small, so that the amount of outdoor air entering the fresh air volute 8 increases and can quickly enter the fresh air volute 8, thereby increasing the amount of fresh air discharged into the room.

[0178] Moreover, the exhaust fan 7 is located above the fresh air fan 6, and the exhaust air inlet 901 is located above the exhaust fan 7, so that the dirty air in the room enters from the top, then the position of the fresh air outlet 802 of the fresh air fan 6 is lower than the position of the exhaust air inlet 901, and the outdoor fresh air flows into the room through the fresh air outlet 802, and the dirty air that needs to be discharged enters the exhaust air inlet 901 from above, that is, the air coming out of the fresh air outlet 802 can reach the people or objects in the room closer and faster, thereby improving the comfort of the people in the room, and the dirty air is discharged into the exhaust volute 9 from above away from the people and indoor objects, thereby reducing the impact of the dirty air on the people in the room.

[0179] On the other hand, when the exhaust fan 7 is located above the fresh air fan 6, the exhaust air inlet 901 will also be set at an upper position in the height direction of the main body 1000 based on this premise, that is, the exhaust air inlet 901 is relatively close to the heat exchange air inlet 101 of the air conditioner. Therefore, the heat exchange air inlet 101 can be directly used as the air inlet of the exhaust fan 7 on the casing, and there is no need to open an air inlet at other positions, which simplifies the process and improves the integrity of the appearance.

[0180] Furthermore, the second motor 5 drives the fresh air fan 6 and the exhaust fan 7 to rotate synchronously when in operation.

[0181] For example, the axial direction of the exhaust fan 7, the axial direction of the fresh air fan 6 and the axial direction of the second output shaft 54 ​​are all along the height direction of the main body 1000. The second motor 5 can be connected to the fresh air fan 6 along the height direction of the main body 1000 through the second output shaft 54, and the second motor 5 transmits driving force from top to bottom. The exhaust fan 7 is mounted on the radial outer side of the motor housing 53, and the exhaust fan 7 is located above the fresh air fan 6. This arrangement can save vertical space of the main body 1000 and has high integration, so that the second motor 5 can simultaneously drive the fresh air fan 6 and the exhaust fan 7 to rotate at the same time in the height direction of the main body 1000 to realize a vertical driving mode. At the same time, one motor can meet the requirements of outdoor fresh air entering the room and discharging the dirty air in the room to the outside, saving costs and improving work efficiency.

[0182] The exhaust fan 7 is arranged on the radially outer side of the motor housing 53, which saves the axial distance between the motor housing 53 and the exhaust fan 7 and the fresh air fan 6, making the structure more compact and occupying less axial space; in addition, the motor housing 53 is embedded in the exhaust fan 7, so the second motor 5 can be kept away from the water receiving pan at the bottom of the indoor heat exchanger 2, thereby reducing the impact of the water in the water receiving pan on the second motor 5, and also allowing the exhaust volute 9 to protect the second motor 5.

[0183] Among them, the second motor 5, the fresh air fan 6, the exhaust fan 7, the fresh air volute 8 and the exhaust volute 9 constitute a two-way ventilation component, which is arranged in the main body 1000. The two-way ventilation component can provide fresh air for the room and exhaust the indoor air to the outside.

[0184] It should be noted that, in the wall-mounted air conditioner 10000, the operating mode of the two-way ventilation component can be set according to actual usage requirements.

[0185] In some embodiments, the two-way ventilation component can operate in fresh air mode and exhaust mode at the same time, that is, the fresh air duct V01 and the exhaust duct V02 can be opened at the same time. While the indoor dirty air flows to the outdoor space, the outdoor fresh air can also enter the indoor space. Through the one-in and one-out airflow drive combination, it is helpful to increase the improvement efficiency of the indoor space airflow, thereby meeting the user's needs in time when the user urgently needs to exhaust or update the indoor air.

[0186] Furthermore, since fresh air is replenished into the room while exhausting indoor air to the outside, maintaining a sufficient indoor air volume makes it easier to draw in indoor air. For example, if there is an irritant gas (such as gas released by home improvement materials), coal gas, or other gas leaking indoors, the two-way ventilation assembly can be set to operate in both fresh air mode and exhaust mode simultaneously to achieve rapid ventilation. Compared with conventional fresh air structures that simply introduce fresh air, the two-way ventilation assembly in some embodiments of the present disclosure has a larger purification flow rate per unit time, higher ventilation efficiency, and better purification effect.

[0187] Furthermore, when ventilating, it avoids the drastic change of indoor temperature caused by excessive ventilation like directly opening a window, thus avoiding causing discomfort to indoor occupants due to sudden temperature rise or fall. In addition, the main body 1000 is located at a higher position, so the ventilation position will not be too close to people, causing discomfort.

[0188] In some embodiments, the two-way ventilation component can selectively operate in either fresh air mode or exhaust mode. Specifically, the two-way ventilation component can activate the fresh air mode while disabling the exhaust mode, in which case only the fresh air duct V01 is ventilated, while the exhaust duct V02 is not. Alternatively, the two-way ventilation component can activate the exhaust mode while disabling the fresh air mode, in which case the fresh air duct V01 is not ventilated, while the exhaust duct V02 is ventilated.

[0189] Reference Figure 2-Figure 4 The wall-mounted air conditioner 10000 also includes: an electrical box 13, which is arranged in the accommodating cavity V1. The electrical box 13 and the second motor 5 are located at the same end in the length direction of the main body 1000. In the height direction of the main body 1000, the electrical box 13 is located above the exhaust fan 7.

[0190] For example, the electrical box 13 is electrically connected to the second motor 5. The electrical box 13 serves as a control module for controlling the operation of the second motor 5. The electrical box 13 and the second motor 5 are distributed at the same end in the length direction of the main body 1000, and the electrical box 13 is located above the exhaust fan 7. The electrical box 13 can be connected to the casing 1. In this way, the electrical box 13, the second motor 5, the exhaust fan 7 and the fresh air fan 6 can jointly occupy the same end space in the length direction of the main body 1000. In this way, the structure can be more compact, highly integrated, and occupy less space, and the length dimension of the main body 1000 can be reduced, thereby reducing the weight of the entire machine.

[0191] In addition, when the second motor 5 rotates to drive the exhaust fan 7 to rotate, part of the air can be passed through the electrical box 13 to the exhaust inlet 901 of the exhaust fan 7 below. In this way, the heat of the internal structure of the electrical box 13 can be taken away to cool the electrical box 13, and part of the air passing through the outer periphery of the electrical box 13 can also take away the temperature of the surface of the electrical box 13. The electrical box 13 is cooled in two ways so that the internal structure of the electrical box 13 can operate within a certain temperature range, reducing the damage to the electronic components and other structures in the electrical box 13 caused by high temperature, allowing the electronic components to provide greater power, thereby increasing the service life of the electrical box 13, and the electrical box 13 can be electrically connected to the second motor 5 so that the second motor 5 can output power stably.

[0192] And the electric control box 13 is arranged above the exhaust fan 7, so that the electric control box 13 is located at a higher position, which can prevent the condensed water generated during the operation of the air conditioner from flowing to the electric control box 13, improve the safety of the electric control box 13, and ensure the safe operation of the wall-mounted air conditioner 10000.

[0193] Thus, by driving the exhaust fan 7 with the second motor 5, a large amount of indoor air can be exhausted, achieving an exhaust function. A portion of the indoor air can be used to cool the internal structure of the electrical box 13, achieving a cooling function. This can prevent the temperature of the electronic components from being too high, allowing the internal structure of the electrical box 13 to operate within a certain temperature range. In this way, the electronic components can provide greater power. The input power of the second motor 5 is increased, and the speed of the second motor 5 is increased, thereby increasing the fresh air volume and exhaust air volume, achieving both exhaust and cooling functions, and increasing the fresh air volume and exhaust air volume, achieving multiple goals at one stroke. Furthermore, the number of heat dissipation structures for the electrical box 13 can be reduced, reducing heat dissipation costs, and the structure is simpler, reducing production costs.

[0194] Furthermore, the electrical box 13 can be electrically connected to the first motor 42 to control the operation of the first motor 42 .

[0195] In some embodiments, the electrical box 13 includes: a box cover 131, a box cavity 1311 is formed in the box cover 131, a box air inlet 1312 and a box air outlet 1313 are formed in the box cover 131, the box air outlet 1313 is connected to the exhaust air inlet 901, and an air duct is formed between the box air inlet 1312 and the box air outlet 1313, which can dissipate heat from the structure of the electrical box 13, and the air enters the exhaust air inlet 901 from the box air outlet 1313, and can be discharged outdoors together with the indoor air through the drive of the exhaust fan 7.

[0196] The electrical box 13 also includes a circuit board 133, which is installed in the box cavity 1311. The circuit board 133 is detachably connected to the inside of the electrical box 13. The circuit board 133 is connected to various electronic components, such as resistors, capacitors, and integrated circuits. These components are connected by wires to form a circuit to achieve specific control functions.

[0197] The electrical box 13 is used to protect other electronic components such as the circuit board inside it from being damaged by dust, moisture, impact and other external factors. The electrical box 13 can integrate multiple electronic components and circuit boards, making the internal structure of the housing 1 more regular and more convenient to maintain.

[0198] The rotation of the exhaust fan 7 can also allow a portion of the indoor air to enter the box cavity 1311 from the box air inlet 1312 and flow through the circuit board 133 before flowing out from the box air outlet 1313 and flowing toward the exhaust air inlet 901 .

[0199] If the box air inlet 1312 is connected to the indoor space, that is, the box air inlet 1312 can be connected to the heat exchange air inlet 101, and a through hole is also set separately in the housing 1 to connect the box air inlet 1312 to the indoor space, so that when the electrical box 13 is working, its internal structure will generate heat, and the exhaust fan 7 is driven to rotate by the second motor 5, so that a part of the indoor air can enter the box cavity 1313 from the box air inlet 1312, and the indoor air that enters the box cavity 1313 exchanges heat with the circuit board 133, electronic components, etc., and then flows from the box air inlet 1313 to the exhaust air inlet 901, and then is discharged from the room through the exhaust air outlet 902, which can take away the heat of the electrical box 13. The flow direction of the gas is as follows Figure 4 shown.

[0200] In some embodiments, the fresh air device and the exhaust device are effectively integrated, allowing the two devices to rationally utilize their respective structural and spatial characteristics to achieve a flat design. This not only reduces the overall size and weight of the two-way ventilation assembly, but also makes the two-way ventilation assembly lightweight and the air ducts non-interfering with each other. The two-way ventilation assembly is arranged at one end in the height direction of the main body 1000. Compared with a main body without a two-way heat exchange assembly, it only increases the horizontal length. Space is reserved above the two integrated devices for installing the electrical box 13. This can shorten the wiring arrangement of the electrical box 13 and the fresh air device and exhaust device, making the overall wiring simpler and neater.

[0201] This effectively utilizes the height and thickness of the main body 1000, resulting in a thin and light appearance. Hanging it on the wall does not obtrusively affect the interior layout, nor does it make it difficult to secure the wall-mounted air conditioner 10000 due to excessive weight, reducing the risk of it falling off the wall. The wall-mounted air conditioner 10000 remains thin and light overall, making it aesthetically pleasing and manageable in weight when hung on the wall.

[0202] In some embodiments, as Figure 8 、 Figure 13 and Figure 14 As shown, a portion of the second output shaft 54 ​​is located inside the stator portion 51, and the second output shaft 54 ​​is rotatably connected to the stator portion 51. In this way, the second output shaft 54 ​​can be supported by the stator portion 51, thereby increasing the axial and radial bending moment bearing capacity of the second output shaft 54 ​​and improving the rotational stability of the second output shaft 54.

[0203] For example, Figure 14 As shown, a portion of the motor housing 53 is located radially outside the rotor portion 52 , increasing the connection area and achieving stable fixation of the rotor portion 52 .

[0204] In some embodiments, the motor housing 53 and the exhaust fan 7 are integrally injection-molded parts, thereby reducing the number of processing steps and improving the connection firmness between the motor housing 53 and the exhaust fan 7 .

[0205] In some embodiments, in the height direction of the main body 1000 , the box air inlet 1312 is disposed at the top of the box outer cover 131 , and the box air outlet 1313 is disposed at the bottom of the box outer cover 131 .

[0206] For example, the box cover 131 of the electrical box 13 can be constructed as a square box body, and in the height direction of the main body 1000, the box air inlet 1312 passes through the top of the box cover 131, and the box air outlet 1313 passes through the bottom of the box cover 131, so that the box air inlet 1312 and the box air outlet 1313 are connected, and the box air inlet 1312 and the box air outlet 1313 form an air duct in the box cover 131. In this way, the airflow above the box cover 131 can enter the box cover 131 from the box air inlet 1312, and the airflow passes through the air duct in the box cover 131 and flows out of the box cover 131 from the box air outlet 1313, and exchanges heat with the internal structure of the electrical box 13 during the flow of the airflow, thereby realizing heat dissipation and cooling of the electrical box 13.

[0207] The box air inlet 1312 and the box air outlet 1313 can both be configured as round holes, square holes, strip-shaped holes, etc., that is, the box air inlet 1312 and the box air outlet 1313 can be configured as the same structure or different structures. For example, the box air inlet 1312 can be configured as a round hole, and the box air outlet 1313 can be configured as a square hole. The configuration of the two is not limited to that described in this embodiment and can be selectively configured according to actual conditions.

[0208] In some embodiments, in the projection along the height direction of the main body 1000, the box air inlet 1312 and the box air outlet 1313 overlap or are at least partially staggered, that is, the box air inlet 1312 and the box air outlet 1313 can be set to overlap, or the box air inlet 1312 and the box air outlet 1313 can be set to be at least partially staggered, that is, the two are partially overlapped, such as Figure 3 As shown, the box air inlet 1312 and the box air outlet 1313 overlap, that is, they are distributed opposite each other in the up and down directions. In this way, a direct air flow channel can be formed, which can guide the air from the box air inlet 1312 to flow directly to the box air outlet 1313, so as to flow to the exhaust air inlet 901, which can narrow the flow path of the hot air flow in the electrical box 13, thereby improving the efficiency of air flow.

[0209] Thus, the above-described layout simplifies the design of the air flow path. Driven by the second motor 5, the airflow can flow through the electronic components and then quickly pass through the electrical box 13, quickly reducing the heat generated by the electronic components and improving the heat dissipation effect. Furthermore, the processing of the box air inlet 1312 and the box air outlet 1313 is simpler and more convenient.

[0210] In some embodiments, the box air outlet 1312 is connected to the exhaust air inlet 901 through a maze heat dissipation channel 132. Thus, through the setting of the maze heat dissipation channel 132, the air flow at the box air outlet 1313 can be guided by the maze heat dissipation channel 132 and dispersed at the periphery of the outlet end of the maze heat dissipation channel 132 to expand the air flow range. The hot air flow is mixed with the air flow at the exhaust air inlet 901 and enters the exhaust volute 9 from the periphery of the exhaust air inlet 901 together, which is beneficial to the discharge of the hot air flow in the electrical box 13 and improves the heat dissipation efficiency. The maze heat dissipation channel 132 can prevent the flames from directly escaping from the electrical box 13 when the electrical box 13 catches fire, affecting the safety of the second motor 5, and can reduce the risk of fire spreading, with higher safety.

[0211] Reference Figure 4 As shown, the electrical box 13 is located on the upper side of the exhaust volute 9, and the two are spaced apart and distributed in the up and down directions, wherein the box air inlet 1312 and the box air outlet 1313 are open in the up and down directions, and the maze heat dissipation channel 132 can include two sections of channels, the first channel extends in the up and down direction, and the second channel extends in the horizontal direction. In this way, the maze heat dissipation channel 132 and the box air outlet 1313 can be vertically connected, and the second channel extends in the horizontal direction to one side of the axis of the exhaust volute 9, and the outlet end of the second channel is open in the horizontal direction.

[0212] With this arrangement, after the second motor 5 drives the exhaust fan 7 to rotate, the indoor air flows vertically at the box air inlet 1312 and the box air outlet 1313, and the air can be guided to flow out horizontally through the maze heat dissipation channel 132 to diffuse the flow range of the hot air flow, and mix with the air flow at the exhaust air inlet 901 to flow into the exhaust volute 9.

[0213] In some embodiments, the box air inlet 1312 and the box air outlet 1313 are respectively located on both sides of the circuit board 133. The circuit board 133 is provided with a heat dissipation hole 1331. The indoor air at the box air inlet 1312 flows through the circuit board 133 through the heat dissipation hole 1331 and then flows to the box air outlet 1313.

[0214] The circuit board 133 can be connected to the upper side of the box cover 131, and the circuit board 133 can also be connected to the lower side of the box cover 131. The box air inlet 1312 and the box air outlet 1313 in this embodiment can be adapted to the above-mentioned two arrangements of the electrical box 13. In this embodiment, Figure 2-Figure 4 As shown, the circuit board 133 is connected to the inner top wall of the box cover 131, the box air inlet 1312 is located on the upper side of the circuit board 133, and the box air outlet 1313 is located on the lower side of the circuit board 133. The circuit board 133 is provided with a heat dissipation hole 1331 for circulating air flow. The heat dissipation hole 1331 runs through the circuit board 133, and the heat dissipation hole 1331 can be constructed as a round hole, a square hole, etc.

[0215] Thus, driven by the second motor 5, indoor air enters the box outer cover 131 from the box air inlet 1312, and the indoor air flows through the circuit board 133 through the heat dissipation holes 1331, and can exchange heat with the circuit board 133 and the electronic components on the circuit board 133. The indoor air after heat exchange flows out from the box air outlet 1313 and flows through the circuit board 133 through continuous airflow to achieve continuous heat dissipation of the electrical box 13. The heat dissipation method is simple and the heat dissipation effect is good.

[0216] In some embodiments, in the height direction of the main body 1000, the box air inlet 1312 and / or the box air outlet 1313 are directly opposite to the heat dissipation hole 1331. That is to say, one of the box air inlet 1312 and the box air outlet 1313 can be set to be directly opposite to the heat dissipation hole 1331, or both the box air inlet 1312 and the box air outlet 1313 can be set to be directly opposite to the heat dissipation hole 1331, and both can realize air flow through the circuit board 133. The setting methods are diverse and can be flexibly selected.

[0217] like Figure 3As shown, the box air inlet 1312 and the box air outlet 1313 are both distributed opposite to the heat dissipation holes 1331, so that the three can be distributed opposite to each other along the height direction of the main body 1000, so that the indoor air at the box air inlet 1312 can flow vertically to the heat dissipation holes 1331 and the box air outlet 1313, which can shorten the air flow path in the electrical box 13 and reduce the resistance during the air flow, thereby increasing the air flow speed and improving the heat dissipation efficiency of the electrical box 13.

[0218] In some embodiments, the circuit board 133 is provided with multiple heat dissipation structures 1332 on the side facing the box air outlet 1313, and heat dissipation gaps 1333 are formed between the multiple heat dissipation structures 1331. The indoor air at the heat dissipation holes 1331 can flow to the box air outlet 1313 through the heat dissipation gaps 1333.

[0219] Among them, Figure 3 and Figure 5 As shown, the circuit board 133 includes an upper side and a lower side. The lower side of the circuit board 133 faces the box air outlet 1313. Multiple heat dissipation structures 1332 may be provided on the lower side of the circuit board 133. In actual design, the multiple heat dissipation structures 1332 may be distributed around the heat dissipation holes 1331, and the multiple heat dissipation structures 1332 may be distributed in the vicinity of the heat dissipation holes 1331. The multiple heat dissipation structures 1332 may be spaced apart and distributed around different electronic components. The multiple heat dissipation structures 1332 may have heat dissipation gaps 1333 formed therebetween, and the heat dissipation gaps 1333 are open toward one side of the box air outlet 1313. In this embodiment, three heat dissipation structures 1332 are provided. However, the number of heat dissipation structures 1332 is not limited to that described in this embodiment. The number of heat dissipation structures 1332 may also be two, three, four, etc.

[0220] Therefore, when the electrical box 13 is working, the electronic components will generate heat, and the heat dissipation structure 1332 will absorb the heat. After the indoor air enters the heat dissipation hole 1331, the indoor air exchanges heat with the heat dissipation structure 1332 and some electronic components and then flows to the box air outlet 1313, which can reduce the temperature of the heat dissipation structure 1332 or some electronic components, and realize the heat dissipation of the electrical box 13.

[0221] In some embodiments, the circuit board 133 is provided with multiple heat dissipation structures 1332 on the side facing the box air inlet 1312, and heat dissipation gaps 1333 are formed between the multiple heat dissipation structures 1332. The indoor air at the box air inlet 1312 flows to the heat dissipation holes 1331 through the heat dissipation gaps 1333.

[0222] The circuit board 133 includes an upper side and a lower side. The upper side of the circuit board 133 faces the box air inlet 1312. Multiple heat dissipation structures 1332 may be provided on the upper side of the circuit board 133. In actual design, the multiple heat dissipation structures 1332 may be distributed around the heat dissipation holes 1331, and the multiple heat dissipation structures 1332 may be distributed in the vicinity of the heat dissipation holes 1331. The multiple heat dissipation structures 1332 may be spaced apart and distributed around different electronic components. The multiple heat dissipation structures 1332 may have heat dissipation gaps 1333 formed therebetween, and the heat dissipation gaps 1333 are open toward one side of the box air inlet 1312. In this embodiment, three heat dissipation structures 1332 are provided. However, the number of heat dissipation structures 1332 is not limited to that described in this embodiment. The number of heat dissipation structures 1332 may also be two, three, four, or the like.

[0223] Therefore, when the electrical box 13 is working, the electronic components will generate heat, and the heat dissipation structure 1332 will absorb the heat. After the indoor air enters the box air inlet 1312, the indoor air exchanges heat with the heat dissipation structure 1332 and some electronic components and then flows to the heat dissipation holes 1331, and flows to the box air outlet 1313 through the heat dissipation holes 1331, which can reduce the temperature of the heat dissipation structure 1332 or some electronic components, and realize heat dissipation of the electrical box 13.

[0224] In some embodiments, the exhaust air outlet 901 is provided on the peripheral wall of the exhaust volute 9 , and the exhaust air outlet 901 is configured to be open in a direction away from the heat exchange fan 41 in the length direction of the main body 1000 .

[0225] Among them, the outer structure of the exhaust volute 9 can be constructed as a disc structure, and the exhaust fan 7 is installed in the exhaust volute 9. The exhaust fan 7 has axial air inlet and radial air outlet, that is, the exhaust inlet 901 is arranged along the axial extension of the exhaust volute 9, and the exhaust outlet 902 is arranged on the outer peripheral wall of the exhaust volute 9. In the length direction of the main body 1000, the opening direction of the exhaust outlet 902 is open in the direction away from the heat exchange fan 41. If the heat exchange fan 41 is located in the right area in the length direction of the main body 1000, the exhaust outlet 902 can be opened to the left, so that the air flow can flow out of the exhaust volute 9 along the left side.

[0226] Thus, through the above arrangement, the exhaust fan 7 can drive the indoor air to flow into the exhaust volute 9 in the vertical direction and be discharged from the left side of the exhaust volute 9, so that the airflow is quickly discharged from the casing 1. Setting the outflow direction of the airflow in this way can reduce the flow path of the airflow, thereby improving the exhaust efficiency of the exhaust fan 7. It also facilitates the assembly and disassembly of the exhaust outlet 902 and the connecting pipe, making it easy to assemble and disassemble and reducing maintenance costs.

[0227] Furthermore, the exhaust air outlet 902 can be opened toward the front side, and the exhaust air outlet 902 can be opened toward the rear side. The arrangement thereof is varied and can be flexibly selected.

[0228] In some embodiments, the fresh air inlet 801 opens downward along the height direction of the main body 1000.

[0229] Then, by setting a fresh air inlet 801 that opens downward, and at the same time, the axial direction of the fresh air volute 8 is set along the height direction of the main body 1000, when the air is introduced, the air can be introduced directly along the axial direction. Compared with the radial air introduction adopted in the prior art, the air introduction path needs to be introduced radially and flow along the axial direction. The path is winding and is affected by the side wall of the fresh air volute 8. There may be a large airflow driving resistance. The embodiment of the utility model can reduce the wind resistance such as the obstruction of the air introduction, and reduce the air introduction path. At the same time, it can be staggered with the exhaust air inlet 901 set upward to reduce the mutual influence between the fresh air and the dirty air.

[0230] In some embodiments, the fresh air outlet 802 opens toward the front and bottom along the main body 1000 .

[0231] In practice, the air conditioner is generally installed in the upper part of the room, higher than the user, and the front lower side of the air conditioner faces the user and indoor objects, and the fresh air outlet 802 is open to the front and bottom, so that when the fresh air is discharged toward the room, it can come into better contact with the user more smoothly; and the heat exchange outlet 102 is located at the bottom, and some of the fresh air outlets 802 can be close to or partially overlap with the outlet area of ​​the heat exchange outlet 102, which is conducive to the mixing of the fresh air and the indoor air after heat exchange. On the one hand, it improves the uniformity of the fresh air after mixing in the indoor air, and on the other hand, the fresh air can absorb the cold or heat of the indoor air after heat exchange, so that the temperature of the fresh air tends to the indoor temperature, thereby improving the blowing comfort.

[0232] In some embodiments, reference Figure 6-Figure 8 and Figure 12 The fresh air volute 8 includes a first volute 81 and a second volute 82. The first volute 81 is detachably connected to the exhaust volute 9, and the second volute 82 is located on the side of the first volute 81 away from the exhaust volute 9, and the second volute 82 is detachably connected to the first volute 81.

[0233] Among them, the fresh air volute 8 is constructed as a disc structure, that is, the first volute 81 and the second volute 82 are both constructed as disc structures, the first volute 81 is distributed close to the exhaust volute 9, and the second volute 82 is located on the side of the first volute 81 away from the exhaust volute 9. In this way, the two ends of the first volute 81 are respectively connected to the exhaust volute 9 and the second volute 82, so that the connection between the fresh air volute 8 and the exhaust volute 9 can be realized, and the exhaust fan 7 and the fresh air fan 6 can be enclosed in the exhaust volute 9 and the fresh air volute 8.

[0234] For example, the first volute 81 is closely connected to the exhaust volute 9, and the two can be detachably connected by connecting parts such as bolts. The second volute 82 can also be detachably connected to the first volute 81 by connecting parts such as bolts. This connection method is simple and reliable.

[0235] In some embodiments, the fresh air volute 8 is axially divided into at least a first volute 81 and a second volute 82, which are processed separately to reduce the difficulty of manufacturing and assembly. Moreover, the quality control of such a complex housing is facilitated after the separate manufacturing. The first volute 81 is detachably connected to the exhaust volute 9, and the second volute 82 is detachably connected to the first volute 81, which facilitates assembly and subsequent adjustment and maintenance.

[0236] The first volute 81 and the second volute 82 jointly define a volute cavity V011, within which the fresh air fan 6 is located. A hollow cavity is formed in each of the first volute 81 and the second volute 82, and the first volute 81 and the second volute 82 are connected to define a volute cavity V011. The fresh air fan 6 is located within the volute cavity V011, with a gap between the fresh air fan 6 and the inner wall of the volute cavity V011 for air flow. The fresh air fan 6 is coaxially connected to the second output shaft 54 ​​of the second motor 5.

[0237] The second volute 82 is formed with a fresh air inlet 801 on a side facing away from the first volute 81. The first volute 81 and the second volute 82 are arranged along the height direction of the main body 1000, with the first volute 81 located above the second volute 82. The second volute 82 is formed with a fresh air inlet 801 on its lower side, and the fresh air inlet 801 is open downward. In this way, fresh air can enter the second volute 82 and the first volute 81 through the fresh air inlet 801 on the lower side of the second volute 82, and be discharged forward into the room through the fresh air outlet 802 formed by the first volute 82 and the second volute 81.

[0238] When the fresh air inlet 801 is provided at the lower side of the second volute 82, it is understood that the fresh air inlet 801 needs to be connected to a pipe to introduce outdoor air, which is referred to here as the fresh air introduction pipe 141 (e.g., Figure 2 The fresh air introduction pipe 141 may be a component of the wall-mounted air conditioner 10000 or may be a fresh air introduction pipe 141 configured by the user after purchasing the wall-mounted air conditioner 10000.

[0239] By positioning the fresh air inlet 801 below the main body 1000, the fresh air intake duct 141 can be connected to the fresh air inlet 801 from below. The connection extends generally in the vertical direction, rather than in the front-to-back direction, which would make the main body 1000 too thick. This allows the wall-mounted air conditioner 10000 to maintain a slim and lightweight design. Furthermore, the fresh air intake duct 141 extends outside the housing 1, eliminating the need for excessive space and thus controlling the height of the main body 1000.

[0240] In some embodiments, the fresh air inlet 801 is positioned so that air flows downward. For example, the fresh air inlet 801 is positioned perpendicular to the length of the main body 1000. This allows the wall-mounted air conditioner 10000 to be connected to the fresh air inlet 801 without excessively lengthening the entire body by providing a two-way ventilation assembly.

[0241] In some embodiments, the fresh air inlet 801 is located at the bottom of the main body 1000 and is arranged close to the rear side. In this way, after the fresh air inlet 801 is connected to the fresh air introduction pipe 141, the fresh air introduction pipe 141 can be arranged against the wall.

[0242] In some embodiments, the fresh air outlet 802 is located directly in front of the main body 1000, and the housing outlet 105 can be correspondingly located on the front side of the housing 1. The housing outlet 105 and the fresh air outlet 802 have the same size, which facilitates the output of fresh air from the front of the main body 1000. When the wall-mounted air conditioner 10000 is mounted on a wall, especially at a high point on the wall, there are few obstacles in front of it, and the air outlet from the front can ensure a larger air supply area for the fresh air.

[0243] For example, Figure 1 As shown, an air guide grille 16 is provided at the air outlet 105 of the casing 1 to adjust the outlet direction of fresh air.

[0244] In some embodiments, the fresh air outlet 802 is located at the top of the main body 1000, and the casing air outlet 105 can be correspondingly set on the top wall of the casing 1, so that the fresh air is supplied toward the roof, and the roof can be used to guide the flow direction of the fresh air, so that the fresh air flows along the roof to expand the air supply area.

[0245] Moreover, since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, 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 accommodating cavity V1 again through the heat exchange air inlet 101 and flow through the indoor heat exchanger 2.

[0246] On the one hand, such a setting is conducive to the fresh air reaching the room temperature quickly, improving the comfort when the fresh air is blown in, and on the other hand, it is conducive to the full mixing of the fresh air with the indoor air flowing through the indoor heat exchanger 2, so that the air blown into the room from the heat exchange outlet 102 is generally fresh, improving the uniformity of the distribution of the fresh air in the room.

[0247] In some embodiments, the fresh air outlet 802 is located below the main body 1000 to guide the fresh air to flow forward and downward into the room. The housing air outlet 105 can be correspondingly provided below the housing 1.

[0248] Since the heat exchange air inlet 101 is located above the heat exchange air outlet 102, and the heat exchange air outlet 102 is relatively low on the casing 1, the fresh air outlet 802 blows out fresh air from below, and the air outlet areas of the fresh air outlet 802 and the heat exchange air outlet 102 are close to or partially overlapped, which is conducive to the mixing of fresh air and the indoor air after heat exchange. On the one hand, it improves the uniformity of the fresh air after mixing in the indoor air. 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 blowing comfort.

[0249] Moreover, the outlet direction of the fresh air outlet 802 is opposite to the inlet direction of the heat exchange inlet 101, and the fresh air will not be sucked into the heat exchange inlet 101, reducing the proportion of the fresh air intake at the heat exchange inlet 101, making the total air outlet of the wall-mounted air conditioner 10000 larger, and improving the overall circulation efficiency of the indoor air.

[0250] Moreover, the fresh air outlet 802 is located below the main body 1000, close to the people's activity space, making it convenient for people to observe the fresh air outlet status. This achieves a visual effect of fresh air outlet, which is conducive to improving people's experience.

[0251] For example, when the fresh air outlet 802 is located below the main body 1000, it is usually located on the front side below the main body 1000, so that the fresh air can flow forward and downward, ensuring that the fresh air can be delivered to the ground and that the fresh air can be delivered to a sufficiently long distance.

[0252] In some embodiments, reference Figure 6-Figure 8 and Figure 12 The second volute 82 includes: a second volute half 821, the second volute half 821 is located on the side of the first volute 81 away from the exhaust volute 9, and the second volute half 821 is detachably connected to the first volute 81, and the second volute half 821 is provided with an axial vent 8211 at the center in the radial direction of the second volute half 821, and a volute cavity V011 is formed between the second volute half 821 and the first volute 81, the fresh air fan 6 is located in the volute cavity V011, and the axial air inlet end of the fresh air fan 6 is arranged toward the axial vent 8211, and the second volute half 821 and the first volute 81 jointly define the fresh air outlet 802.

[0253] In practice, by setting up the second volute half 821, and after the second volute half 821 is connected to the first volute 81, a volute cavity V011 for installing the fresh air fan 6 can be formed. When the fresh air fan 6 needs to be replaced and repaired, it is convenient to connect and disassemble it with the first volute 81. The second volute half 821 is provided with an axial vent 8211, which can increase the fresh air intake and reduce the weight of the fresh air volute 8.

[0254] In some embodiments, reference Figure 6-Figure 8 and Figure 12 The second volute 82 further includes a fan cover 822, which is located on a side of the second volute half 821 away from the first volute 81, and the fan cover 822 is detachably connected to the second volute half 821. Figure 8 The cavity enclosed by the fan cover 822 and the second volute half 821 is the fresh air cavity V012, and the fresh air inlet 801 is formed in the fan cover 822.

[0255] For example, the first volute 81 and the second volute half 821 are closely connected, and the two can be detachably connected by bolts or other connecting parts. The second volute half 821 and the fan cover 822 can also be detachably connected by bolts or other connecting parts. This connection method is simple and reliable.

[0256] After such arrangement, a fresh air cavity V012 is formed at the air inlet end of the fresh air fan 6. The fresh air cavity V012 formed in this way can cover the axial air inlet end of the fresh air fan 6. The fresh air cavity V012 can be used to accommodate air, so that the air can enter the fresh air cavity V012 axially from the fresh air inlet 801, thereby improving the air suction efficiency of the fresh air fan 6 in the fresh air cavity V012 and reducing the air suction loss.

[0257] In the height direction of the main body 1000, the fan cover 822 is located on the lower side of the second volute half 821, the upper side of the second volute half 821 is connected to the first volute 81, and the first volute 81 and the second volute 82 are both separated from the indoor heat exchanger 2. In this way, the indoor heat exchanger 2 has little effect on the temperature of the fresh air when cooling or heating. In particular, when cooling, the ability of the cold energy generated by the indoor heat exchanger 2 to reduce the air temperature in the volute cavity V011 decreases, and the air in the volute cavity V011 is not easily overcooled to produce condensed water.

[0258] In some embodiments, reference Figure 1-Figure 3 The wall-mounted air conditioner 10000 further includes a purification element 11, referring to Figure 4 and Figure 8 The purification element 11 is arranged in the fresh air duct V01, and is used to purify the fresh air blown into the room and improve the cleanliness of the indoor air.

[0259] For example, the purification element 11 is installed in the fresh air chamber V012, for example, the purification element 11 is located at the axial air inlet end of the fresh air fan 6. The rotation of the fresh air fan 6 allows the outdoor air entering the fresh air volute 8 to flow through the purification element 11 and then enter the room from the fresh air outlet 802.

[0260] In this way, the fresh air flow can be blown almost vertically through the purification element 11, and the fresh air intake consumption can be further reduced, thereby increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in the cooling state, causing condensation in the fresh air, the condensation can be retained on the purification element 11 when the air flows through the purification element 11, further avoiding the situation where water is blown away when the fresh air device is discharged.

[0261] In some embodiments, the purification element 11 is connected to the second volute 82 , which facilitates the assembly of the purification element 11 and prevents it from interfering with the fresh air fan 6 .

[0262] For example, Figure 12 As shown, the purification element 11 includes a filter 111, which covers the axial vent 8211. Filter 111 covers the entire air inlet end of the fresh air fan 6. Filter 111 has a large coverage area, a large filtration area, and a good filtration effect. The provision of filter 111 helps ensure sufficient contact area with the flowing air, and is lightweight and has low wind noise. For example, filter 111 is a HEPA mesh, so it has strong adsorption capacity and is highly effective in filtering dust in the air.

[0263] For example, the filter 111 is in the shape of a plate, so that the filter 111 is thin as a whole and does not occupy an excessively thick size when placed in the two-way ventilation component.

[0264] For example, the filter 111 is square, which makes it easier to position and install the filter 111 .

[0265] In some embodiments, the filter 111 is a square mesh, with the side length of the filter 111 being greater than the diameter of the axial vent 8211. This square mesh facilitates positioning during installation, resists shaking once secured, and is easy to process, resulting in minimal processing waste. By making the side length of the filter 111 greater than the diameter of the axial vent 8211, all fresh air entering the axial vent 8211 can flow through the filter 111, resulting in high filtration cleanliness.

[0266] In some embodiments, reference Figure 8 A portion of the fresh air cavity V012 constitutes an empty cavity V0121 . The cavity V0121 is located on a side of the purification element 11 away from the fresh air fan 6 . The fresh air inlet 801 is connected to the cavity V0121 .

[0267] For example, a purification component 11 is arranged in the fresh air cavity V012 near the fresh air fan 6, and the part of the fresh air cavity V012 away from the fresh air fan 6 is a cavity V0121, that is, the cavity V0121 is between the oncoming wind of the purification component 11 and the inner surface of the fan cover 822. In this way, when the fresh air fan 6 is running, the cavity V0121 is in a negative pressure state, so that the airflow can automatically flow into the cavity V0121 from the fresh air inlet 801, thereby reducing the air flow resistance.

[0268] Cavity V0121 is equivalent to the air inlet negative pressure chamber of the fresh air fan 6. The setting of the air inlet negative pressure chamber has many advantages:

[0269] 1. Improved air intake efficiency. For example, by providing a negative pressure chamber, the buffer space on the intake side of the fresh air fan 6 is increased, making it easier for the fresh air fan 6 to draw air, thereby increasing the air intake volume of the fresh air fan 6. Furthermore, the presence of the negative pressure chamber buffers and adjusts the fresh air in the negative pressure chamber before entering the fresh air fan 6, reducing fluctuations and turbulence in the fresh air flow and improving the air intake stability of the fresh air fan 6. Without cavity V0121 and the lack of buffer space, flow resistance increases, and the operating power consumption of the fresh air fan 6 will also increase.

[0270] 2. Optimizing airflow distribution: For example, the buffering and guiding of the negative pressure chamber can help guide the airflow axially into the fresh air fan 6.

[0271] 3. Reduce airflow impact and absorb noise.

[0272] In this way, while increasing the air intake volume of the fresh air device, it is also beneficial to the overall air intake reliability and stability.

[0273] In some embodiments, the fresh air volute 8 is further provided with an installation opening 803, and the purification element 11 can be detachably assembled in the installation opening 803. This makes it convenient to disassemble the purification element 11 when it is damaged or saturated, and to facilitate maintenance or replacement.

[0274] For example, Figure 6 and Figure 7 As shown, the mounting opening 803 is formed between the fan shroud 822 and the second volute half 821. The purification element 11 is removably mounted within the fresh air chamber V012 through the mounting opening 803. This allows for a larger mounting opening 803, facilitating the installation of larger purification elements 11. When the mounting opening 803 is larger, it is formed by the fan shroud 822 and the second volute half 821. The fan shroud 822 and the second volute half 821 each have an open half-opening, facilitating processing and demolding, and minimizing the scrap rate.

[0275] For example, Figure 6 As shown, in the front-to-back direction of the main body 1000, the mounting opening 803 is located on the front side of the main body 1000. When the purification element 11 is removed, it can be free from interference with the pipes connected to the fresh air inlet 801 and the exhaust air outlet 902, thus facilitating removal. For example, the front side of the housing 1 is provided with an openable panel (not shown). When the panel is opened or rotated upward, the mounting opening 803 can be exposed, facilitating removal of the purification element 11.

[0276] It is also possible that in some solutions, the installation port 803 is set at the bottom of the main body 1000.

[0277] In some embodiments, a purified air inlet for communicating with the indoor air is formed on the fresh air volute 8. The rotation of the fresh air fan 6 allows indoor air to enter the fresh air volute 8 from the purified air inlet to be purified by the purification element 11, and allows the indoor air entering the fresh air volute 8 to enter the indoor air through the fresh air outlet 802. In this way, the indoor air can enter the fresh air duct V01 from the purified air inlet, be purified, and then enter the indoor air through the fresh air outlet 802.

[0278] This setup allows for the indoor air to circulate and purify when it becomes polluted. This purifies the indoor air, improving cleanliness, without the need for fresh air. Because no fresh air is introduced, the indoor air purification process prevents sudden influx of unheated cold or hot air from outside, preventing discomfort caused by sudden changes in indoor temperature.

[0279] The air inlet direction of the purified air inlet is perpendicular to the length of the main body 1000. It is understood that by aligning the air inlet direction perpendicular to the length of the main body 1000, the purified air inlet suction area is further away from the exhaust air inlet 901, thus avoiding excessive suction energy consumption caused by the purified air inlet and the exhaust air inlet 901 being too close. Furthermore, the different directions of the purified air inlet and the exhaust air inlet 901 help expand the negative pressure area, allowing a large amount of indoor air to flow into the negative pressure area, thereby ensuring the exhaust and indoor fresh air volume.

[0280] In some embodiments, as Figure 7 and Figure 8 As shown, the wall-mounted air conditioner 10000 may include a first switching valve 12 for switching between the fresh air inlet 801 and the purified air inlet. This allows the fresh air inlet 801 and the purified air inlet to be selectively opened and closed. The specific structure of the first switching valve 12 is not limited here.

[0281] In some embodiments, as Figure 8 As shown, the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72 . The exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71 , and extend along the axial direction of the exhaust wheel disc 71 in a direction away from the fresh air fan 6 .

[0282] The exhaust disc 71 is the supporting structure of the exhaust fan 7. The exhaust blades 72 are connected to the outer edge of the exhaust disc 71 away from its center, allowing airflow to flow out of the exhaust fan 7 along the outer edge of the exhaust disc 71. The exhaust blades 72 extend axially and are only arranged in a direction away from the fresh air fan 6. For example, the exhaust fan 7 includes a single layer of centrifugal blades. In this way, the exhaust fan 7 has a simple structure and low cost when meeting a small air volume. In addition, the blade barrel formed by the exhaust blades 72 arranged along the circumference of the exhaust disc 71 is open on the side facing the axial air inlet end, facilitating air intake, reducing air suction resistance, and ensuring the exhaust air intake volume.

[0283] Among them, the exhaust fan 7 may include a protrusion 74 provided on the exhaust impeller 71, the center of the protrusion 74 is located on the axis of the exhaust fan 7, and the protrusion 74 extends relative to the exhaust impeller 71 toward the fresh air fan 6, so that the protrusion 74 is close to the side of the second motor 5 to form a receiving groove V07 for the second motor 5, and at least a part of the stator part 51 and at least a part of the rotor part 52 are accommodated in the receiving groove V07.

[0284] For example, the exhaust wheel 71 is constructed as a circular structure, the protrusion 74 is arranged at the center of the exhaust wheel 71, and the protrusion 74 is arranged on the side of the exhaust wheel 71 close to the fresh air fan 6, and the protrusion 74 protrudes and extends axially toward the fresh air fan 6. For example, the protrusion 74 can be constructed as a cylindrical structure, and the protrusion 74 is a hollow cavity on the side away from the fresh air fan 6, that is, it is formed into a receiving groove V07 for accommodating part of the structure of the stator part 51 and the rotor part 52. At the same time, the protrusion 74 can also be used to support the stator part 51. The design of the protrusion 74 forming the receiving groove V07 can improve the integration of the first volute 81 and the exhaust fan 7, and also improve the stability of the second motor 5 connected to the first volute 81; and, part of the structure of the second motor 5 extends into the exhaust fan 7, which can save the setting of the height space of the overall structure in the main body, and the structure is compact, and can ensure that the second motor and the exhaust fan 7 are connected reliably and stably.

[0285] Reference Figure 12 The first volute 81 includes a first volute end plate 811 and a first volute enclosure 812. The first volute enclosure 812 is formed along the edge of the first volute end plate 811 and extends in a direction away from the exhaust volute 9, wherein the first volute end plate 811 is located on the side away from the fresh air fan 6 and extends toward the side close to the fresh air fan 6. In this way, an installation cavity can be formed between the first volute end plate 811 and the first volute enclosure 812 for installing the exhaust fan 7, and an air flow channel is formed between the exhaust fan 7 and the first volute enclosure 812 for the flow of air.

[0286] The center portion of the first volute end plate 811 forms a recessed portion 813 facing the fresh air fan 6 . At least a portion of the protrusion 74 is located in the recessed portion 813 .

[0287] Therefore, a protrusion 74 is provided at the center of the exhaust wheel 71, and a recess 813 is formed at the center of the first volute end plate 811. On the one hand, the hub of the exhaust fan 7 is used to form the protrusion 74 to accommodate the second motor 5, and the protrusion 74 can improve the structural strength of the exhaust fan 7. On the other hand, the main body of the second motor 5 is assembled in the protrusion 74, which occupies more of the exhaust air duct V02 and less of the fresh air duct V01, matching the design in which the fresh air volume is greater than the exhaust air volume. The connection method is simple and the centering is high, which can improve the assembly accuracy. Moreover, when the first volute end plate 811 is connected to the exhaust fan 7, the protrusion 74 and the recess 813 share a part of the axial space, that is, a part of the axial space is shared between the first volute end plate 811 and the exhaust fan 7, thereby saving axial space, improving the integration of the connection between the fresh air volute 8 and the exhaust volute 9, and reducing the volume of the overall structure.

[0288] In some embodiments, a perforated portion 814 is provided at the center of the recessed portion 813, through which the second output shaft 54 ​​is connected to the fresh air fan 6. Thus, during installation, the second output shaft 54 ​​is passed through the perforated portion 814 and then through the first volute end plate 811 before being connected to the fresh air fan 6. During the connection process, only the second output shaft 54 ​​is passed through the first volute end plate 811, which facilitates sealing, reduces the chance of fresh air and exhaust air flowing back and forth, and reduces airflow disturbances. Furthermore, the connection method is simple and easy to assemble and disassemble.

[0289] Therefore, such a setting can not only ensure that the gap between internal parts is small and not easy to loosen, but also each air duct can be designed to be shorter, the size of the casing 1 is reduced, thereby reducing the overall weight of the main body 1000, visually lighter and thinner, and can ensure that the stator part 51, the rotor part 52 and the motor casing 53 are reliably installed in the axial direction to ensure that the second motor 5 can output sufficient power to meet the requirements of exhaust air volume and fresh air volume. It is also beneficial to reduce the distance between the main part of the second motor 5 and the fresh air fan 6, thereby helping to reduce the axial distance between the fresh air fan 6 and the main part of the second motor 5, and reducing the bending moment generated by the fresh air fan 6 on the second output shaft 54. When the second motor 5 moves, the fresh air fan 6 and the exhaust fan 7 have a high coaxiality and are not easy to shake, which can avoid wear and vibration caused by friction with the volute.

[0290] In some embodiments, reference Figure 8The exhaust volute 9 and the fresh air volute 8 are connected, sharing a first volute end plate 811. The first volute end plate 811 also separates the fresh air duct V01 from the exhaust duct V02. This arrangement eliminates the need for a gap between the exhaust volute 9 and the fresh air volute 8, further reducing the axial dimension of the two-way ventilation assembly and the space it occupies within the wall-mounted air conditioner 10000, contributing to the overall slimmer design of the wall-mounted air conditioner 10000.

[0291] For example, the first volute end plate 811 is a single-layer plate, which simplifies the structure and helps to reduce the overall axial size.

[0292] Furthermore, the exhaust volute 9 includes a second volute shroud 906 surrounding the radially outer side of the exhaust fan 7. The diameter of the first volute shroud 812 is larger than the diameter of the second volute shroud 906. This makes the assembly parts compact and reduces the overall occupied space.

[0293] Moreover, the second volute enclosure 906 can leave more space on the radial outside, so that there is space for air to flow radially outside the exhaust volute 9 inside the casing 1. In this way, when the exhaust volute 9 inhales air from the exhaust air inlet 901, more air can enter, which is beneficial to increase the exhaust air intake volume.

[0294] In some embodiments, the first volute 81 and the second volute 82 define a fresh air outlet 802 .

[0295] Among them, the volute cavity V011 formed by the first volute 81 and the second volute 82 is used to install the fresh air fan 6, and a fresh air outlet 802 can be set on the front side of the second volute 82. When the second volute 82 and the first volute 81 are connected, the fresh air outlet 802 is located on the front side of the fresh air volute 8. Then, when the fresh air fan 6 in the fresh air volute 8 is rotated, the fresh air can be brought out from the fresh air outlet 802, that is, there is no need to set up a fresh air outlet duct, and the fresh air outlet 802 can be defined by the first volute 81 and the second volute 82, thereby reducing the complexity of the structure, and the fresh air outlet path is short, thereby improving the air outlet efficiency.

[0296] In some embodiments, reference Figure 8 、 Figure 10 and Figure 12 The fresh air fan 6 includes a fresh air disc 61 and fresh air blades 62. The fresh air disc 61 is coaxially arranged with the second motor 5 and connected to the second output shaft 54 ​​of the second motor 5. The fresh air blades 62 include a first fresh air blade 621, which extends from the fresh air disc 61 in a direction away from the exhaust fan 7.

[0297] Among them, the fresh air wheel 61 is the supporting structure of the fresh air fan 6, and the fresh air blades 62 are connected to the outer edge of the fresh air wheel 61 away from its center, so that the air flow can flow out of the fresh air fan 6 along the outer edge area of ​​the fresh air wheel 61, and the fresh air blades 62 include a first fresh air blade 621, that is, the first fresh air blade 621 extends downward, and the blade tube formed by the first fresh air blade 621 being arranged along the circumferential direction is open on the side facing the axial air inlet end, which facilitates the inhalation of air flow, reduces the wind resistance of suction, and ensures the air intake volume of fresh air.

[0298] In some embodiments, reference Figure 8 、 Figure 10 and Figure 12 The fresh air blades 62 further include second fresh air blades 622, which extend from the fresh air disc 61 toward the exhaust fan 7. That is, the second fresh air blades 622 extend upward, thus forming two sets of blades on both sides of the fresh air disc 61, i.e., the fresh air fan 6 includes double-layer centrifugal blades. This double-layer centrifugal blade structure design helps to increase the overall structural strength of the centrifugal fan while meeting the demand for large air volume.

[0299] In some embodiments, the length of the second fresh air blade 622 is shorter than the length of the first fresh air blade 621 in the axial direction of the fresh air fan 6. Here, the axial direction of the first fresh air blade 621 faces the fresh air inlet 801. A longer blade can capture more air and promote air flow. Therefore, the axial length of the first fresh air blade 621 is greater, which is conducive to obtaining a larger fresh air intake volume by utilizing the first fresh air blade 621.

[0300] The use of a shorter second fresh air blade 622 is conducive to supplementing the fresh air intake. The volume between the first fresh air blade 621 and the first volute end plate 811 is small, that is, the air flow volume is small. When the second fresh air blade 622 rotates, this part of the air flow can be driven and discharged from the fresh air outlet 802. Moreover, the gap between the first volute end plate 811 and the exhaust fan 7 is small, and the volume is small, that is, the air flow volume is small. Therefore, when the air flow volume is small, there is no need to set a longer second fresh air blade 622.

[0301] In some embodiments, as Figure 11 As shown, a wheel hole 612 is formed on the fresh air wheel 61, and one side of the second fresh air blade 622 can inhale air through the wheel hole 612. The distance from the wheel hole 612 to the center of the fresh air wheel 61 is smaller than the distance from the fresh air blade 62 to the center of the fresh air wheel 61.

[0302] For example, the wheel hole 612 is closer to the center of the fresh air wheel 61 than the fresh air blade 62. This helps the second fresh air blade 622 to guide the airflow axially into the space where the second fresh air blade 622 is located when sucking air from the wheel hole 612, thereby reducing the turbulence caused by the competition with the first fresh air blade 621.

[0303] In some embodiments, the total thickness of the stator portion 51, the rotor portion 52 and the motor housing 53 in the axial direction is M. Figure 14 As shown, the total thickness of the second motor 5 is M, and the axial thickness of the fresh air fan 6 is W. Figure 10 As shown, the total thickness of the fresh air wheel 61 and the fresh air blade 62 on the fresh air fan 6 in the axial direction is W, W> M. This also ensures that the fresh air volume is large, and the second motor 5 does not need to occupy too much air duct space.

[0304] In some embodiments, the area of ​​the outer circular curved surface of the fresh air fan 6 is S1, and the area of ​​the outer circular curved surface of the exhaust fan 7 is S2, S1 = πD1*W, D1 is the outer diameter of the fresh air fan, W is the axial thickness of the fresh air fan, S2 = πD2*N, D2 is the outer diameter of the exhaust fan, N is the axial thickness of the exhaust fan, and S1>S2.

[0305] Among them, the outer diameter D1 of the fresh air fan 6 refers to the diameter dimension of the fresh air fan 6 that is farthest from the axis of the fresh air fan 6. The fresh air fan 6 includes: a fresh air disc 61 and fresh air blades 62. The fresh air blades 62 are located at the outer edge of the fresh air disc 61, and the fresh air blades 62 extend along the axial direction of the fresh air disc 61. The total thickness of the fresh air disc 61 and the fresh air blades 62 in the axial direction is W. Here, there can be one fresh air disc 61 on the fresh air fan 6, or there can be at least two distributed at intervals along the axial direction. Each fresh air disc 61 can be provided with only one circle of fresh air blades 62 on either axial side, or a circle of fresh air blades 62 can be provided on each side. When all the fresh air discs 61 and fresh air blades 62 are projected vertically on the axis of the fresh air fan 6, the distance between the two farthest points in the projection is equal to W.

[0306] The outer diameter D2 of the exhaust fan 7 refers to the diameter of the exhaust fan 7 that is farthest from the axis of the exhaust fan 7. The exhaust fan 7 includes an exhaust disc 71 and exhaust blades 72. The exhaust blades 72 are located at the outer edge of the exhaust disc 71, and the exhaust blades 72 extend along the axial direction of the exhaust disc 71. The total thickness of the exhaust disc 71 and the exhaust blades 72 in the axial direction is N. Here, there can be one exhaust disc 71 on the exhaust fan 7, or at least two exhaust discs 71 distributed at intervals along the axial direction. Each exhaust disc 71 can be provided with only one circle of exhaust blades 72 on either side of the axial direction, or a circle of exhaust blades 72 can be provided on each side. When all the exhaust discs 71 and exhaust blades 72 are projected vertically on the axis of the exhaust fan 7, the distance between the two farthest points in the projection is equal to N.

[0307] With this arrangement, the outer circular curved surface area of ​​the fresh air fan 6 is large, and the outer circular curved surface area of ​​the exhaust fan 7 is small, which is conducive to achieving a large fresh air volume under the condition of limited space size of the whole machine.

[0308] For example, according to the structural and functional requirements of this embodiment, the outer diameter D1 of the fresh air fan 6 is larger than the outer diameter D2 of the exhaust fan 7. This facilitates ensuring that the area swept by the blades of the fresh air fan 6 is larger than the area swept by the blades of the exhaust fan 7. This results in a greater fresh air volume than the exhaust air volume, meeting the design requirements of the wall-mounted air conditioner 10000. In other words, drawing air from the unlimited outdoor space into the room consumes less energy than drawing air from a relatively enclosed indoor space and exhausting it outdoors. Furthermore, since the air in the outdoor environment is fresher, drawing air from the outdoors into the room further helps replenish fresh air indoors, increasing the oxygen content and reducing the carbon dioxide content in the indoor air.

[0309] Moreover, by setting the outer diameter D2 of the exhaust fan 7 to be smaller than the outer diameter D1 of the fresh air fan 6, it is easy to stagger the exhaust outlet 902 of the exhaust duct V02 and the fresh air outlet 802 of the fresh air duct V01 on the periphery of the two-way ventilation component. This makes it convenient to connect the pipes on the exhaust outlet 902 and the fresh air outlet 802 on the one hand, and on the other hand, it is easy to prevent the fresh air and exhaust air from crossing each other on the flow path within the two-way ventilation component.

[0310] In some embodiments, as Figure 9 As shown, the axial thickness of the exhaust fan 7 is N, that is, the total axial thickness of the exhaust wheel 71 and the exhaust blades 72 on the exhaust fan 7 is N. Figure 10 As shown, the axial thickness of the fresh air fan 6 is W, that is, the total axial thickness of the fresh air disc 61 and the fresh air blades 62 on the fresh air fan 6 is W, where N <W。

[0311] This arrangement ensures that the fresh air volume is greater than the exhaust air volume while also increasing the axial thickness of the main body of the fresh air fan 7, thereby increasing structural strength and being able to withstand greater torque. Since the exhaust fan 7 requires less air volume, the smaller axial thickness of the main body can appropriately reduce the exhaust air volume and simultaneously reduce the axial size of the two-way ventilation assembly.

[0312] In some embodiments, as Figure 14 As shown, the total axial thickness of the stator part 51, the rotor part 52 and the motor housing 53 is M, and the axial thickness of the exhaust fan 7 is N, wherein the exhaust fan 7 includes an exhaust wheel disc 71 and exhaust blades 72, the exhaust blades 72 are located at the outer edge of the exhaust wheel disc 71, and the exhaust blades 72 extend along the axial direction of the exhaust wheel disc 71, and the total axial thickness of the exhaust wheel disc 71 and the exhaust blades 72 is N, M>N.

[0313] It can be understood that the second motor 5 needs to drive the fresh air fan 6 and the exhaust fan 7 at the same time. Although the exhaust air volume is designed to be smaller, the fresh air volume is designed to be larger. Therefore, the total axial thickness of the stator part 51, the rotor part 52 and the motor housing 53 is set to be greater than the axial thickness of the main part of the exhaust fan 7 to ensure that the second motor 5 can support the rotation of the two fans and increase the sufficient supporting force of the second motor 5.

[0314] In some embodiments, the exhaust volute 9 includes an air guide ring 91. The air guide ring 91 is in the shape of a circular tube, and its diameter gradually decreases in the direction toward the fresh air volute 6. The area enclosed by the air guide ring 91 forms an exhaust air inlet 901. Thus, the provision of the air guide ring 91 can effectively collect scattered airflow, converge it into a more concentrated airflow, and send it to the exhaust fan 7, making the air intake smoother and more efficient, and increasing the air intake volume of the exhaust fan 7.

[0315] like Figure 8 and Figure 15 As shown, the air guide ring 91 is located on the side of the exhaust volute 9 near the electrical box 13. The air guide ring 91 is constructed as a circular tube, which is easy to process. The center of the air guide ring 91 is the same as the center of the exhaust fan 7. The diameter of the air guide ring 91 gradually decreases from the end face of the exhaust volute 9 toward the fresh air volute 8. This arrangement allows the air guide ring 91 to form an arc-shaped guide surface, making the structural connection smoother and facilitating airflow guidance.

[0316] The area enclosed by the air guide ring 91 forms an exhaust air inlet 901, which draws indoor air into the exhaust volute 9 through the exhaust air inlet 901. As the diameter of the air guide ring 91 decreases, the passageway through the air guide ring 91 becomes narrower. According to the principles of fluid mechanics, at the same flow rate, a narrower passageway accelerates the airflow, thereby increasing wind speed and volume. The reduced diameter of the air guide ring 91 also helps to concentrate the more dispersed airflow upstream, directing the airflow toward the center of the exhaust fan 7. This concentrated airflow is then driven radially by the exhaust blades 72 with less effort, and the concentrated airflow also contributes to the stability of the airflow.

[0317] Furthermore, by rationally designing the shape and angle of the air guide ring 91, airflow enters the exhaust blades 72 of the exhaust fan 7 at an optimal angle, improving the efficiency of the exhaust fan 7. When unstable airflow fluctuates during inhalation, the air guide ring 91 stabilizes the airflow, reducing turbulence and fluctuations, enabling the exhaust fan 7 to operate more smoothly. This reduces noise and vibration, extending the service life of the exhaust fan 7.

[0318] In some embodiments, as Figure 8As shown, the exhaust fan 7 includes: an exhaust wheel 71 and exhaust blades 72. The exhaust wheel 71 is connected to the motor housing 53 of the second motor 5. The exhaust blades 72 are connected to the side of the exhaust wheel 71 away from the fresh air volute 8. The exhaust blades 72 are multiple and arranged along the circumferential direction.

[0319] Among them, the exhaust wheel 71 is the supporting structure of the exhaust fan 7, and the exhaust blades 72 are arranged on the side of the exhaust wheel 71 away from the fresh air volute 8. The exhaust blades 72 are connected to the outer edge of the exhaust wheel 71 away from its center, and the exhaust blades 72 extend axially and are only extended in the direction away from the fresh air fan 6, and multiple exhaust blades 72 are arranged at intervals along the circumference of the exhaust wheel 71, and the spacing distance between two adjacent exhaust blades 72 is the same, and the exhaust wheel 71 is coaxially arranged with the second motor 5 and connected to the motor housing 53 of the second motor 5. In this way, the exhaust fan 7 is driven to rotate by the second motor 5, so that the air flow entering the exhaust volute 9 can flow out of the exhaust fan 7 evenly along the outer edge area of ​​the exhaust wheel 71.

[0320] like Figure 8 and Figure 15 As shown, the edge of the exhaust blade 72 away from the exhaust disc 71 is the blade side edge 721, and the distance between the portion of the blade side edge 721 close to the second motor 5 and the exhaust disc 71 is reduced, and all exhaust blades 72 form a side edge recess 723 at the location where the distance from the blade side edge 721 is reduced.

[0321] At least a portion of the blade side edge 721 is a gradient section 7212. In the radially inward direction of the exhaust fan 7, the distance between the gradient section 7212 and the exhaust wheel 71 decreases, and all exhaust blades 72 form a side edge recess 723 at the gradient section 7212. The end of the air guide ring 91 is located in the side edge recess 723.

[0322] For example, the exhaust blades 72 of the exhaust fan 7 are concave blades, and the air guide ring 91 and the concave blades are both recessed toward the fresh air fan 6, with the air guide ring 91 partially entering the side edge recess 723 formed by the concave blades. This arrangement allows the air guide ring 91 and the exhaust fan 7 to partially overlap in the axial direction, and the axial dimension of the exhaust volute 9 does not need to be increased while providing the air guide ring 91.

[0323] Moreover, after the exhaust fan 7 rotates, the surface swept by the exhaust blade 72 in the gradient section 7212 forms a funnel surface with a reduced diameter, which is conducive to the concentration of air flow to the center and reduces the energy loss caused by air flow disturbance.

[0324] In some embodiments, as Figure 15As shown, the blade side edge 721 may include a straight section 7211, which is perpendicular to the axis of the exhaust fan 7 and connected to the end of the gradient section 7212 away from the axis of the exhaust fan 7. For example, the exhaust blade 72 has a larger axial dimension near the outer edge, which can fully utilize the space within the exhaust duct V02 to drive the airflow, thereby helping the airflow to obtain greater kinetic energy.

[0325] For example, the gradient section 7212 and the straight section 7211 are connected by a circular arc transition, and the gradient section 7212 and the surface of the exhaust disk 71 are also connected by a circular arc transition. This reduces stress concentration and the risk of fracture at the junctions between the gradient section 7212 and the straight section 7211, and between the gradient section 7212 and the surface of the exhaust disk 71. Furthermore, the circular arc transition between the gradient section 7212 and the surface of the exhaust disk 71 allows the transition to directly face the end of the air guide ring 91, reducing the risk of scratching.

[0326] In some embodiments, the revolving surfaces of the blade side edges 721 of all exhaust blades 72 overlap, and the revolving surface is the surface swept by the blade side edges 721 around the axis of the exhaust fan 7. In this way, when the airflow flows axially toward the center of the exhaust fan 7, excessive radial turbulence caused by the sweeping of individual exhaust blades 72 with inconsistent shapes is avoided, thereby improving the stability of the airflow.

[0327] For example, Figure 15 As shown, the axial spacing between the air guide ring 91 and the gradient section 7212 increases in the direction away from the axis of the exhaust fan 7. It is understandable that when the second motor 5 rotates to drive the exhaust fan 7, the exhaust fan 7 will inevitably produce a small amount of shaking due to wear. When the exhaust fan 7 shakes, the farther away from the axis of the exhaust fan 7, the greater the shaking amplitude. Therefore, increasing the axial spacing between the air guide ring 91 and the gradient section 7212 in the direction away from the axis of the exhaust fan 7 is beneficial to reducing the risk of friction caused by contact between the exhaust fan 7 and the air guide ring 91 during shaking.

[0328] In some embodiments, as Figure 15As shown, the axial dimension of the air guide ring 91 is Z1, which satisfies 2mm≤Z1≤12mm. It is understandable that when the axial dimension Z1 of the air guide ring 91 is less than 2mm, the flow path is too short when gathering, and the airflow enters the exhaust fan 7 before it is gathered. The gathering effect of the airflow is not obvious, and the airflow is easy to disperse. The exhaust fan 7 needs to consume more energy to introduce the dispersed airflow into the center. When the axial dimension Z1 of the air guide ring 91 is greater than 12mm, the air guide ring 91 occupies too much axial space in the exhaust volute 9, resulting in less space available to the exhaust fan 7, resulting in a reduction in the exhaust air volume. Therefore, the axial dimension Z1 of the air guide ring 91 is limited to between 2mm and 12mm, so that the air guide ring 91 gathers the airflow while ensuring that the exhaust fan 7 reaches a sufficient exhaust air volume, thereby achieving a larger exhaust air volume with lower power consumption.

[0329] For example, the axial dimension Z1 of the air guide ring 91 can be 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 12 mm, etc.

[0330] In some embodiments, as Figure 15 As shown, the axial distance between the end of the air guide ring 91 and the exhaust blade 72 is Z2, which satisfies 1mm≤Z2≤5mm.

[0331] When the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blades 72 is less than 1mm, the exhaust blades 72 are likely to collide with the air guide ring 91 during rotation, which not only generates friction loss, but also causes the exhaust fan 7 to be subjected to unbalanced force after the collision, potentially causing greater shaking and leading to a more serious collision. When the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blades 72 is greater than 5mm, not only is the axial clearance between the end of the air guide ring 91 and the exhaust blades 72 wasteful, but the uncollected portion of the incoming air is likely to flow into the exhaust duct V02 from the axial clearance between the end of the air guide ring 91 and the exhaust blades 72. This unworked airflow will crowd out the flow path of the working airflow, reducing the operating efficiency of the exhaust fan 7.

[0332] Therefore, limiting the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 to between 1 mm and 5 mm is beneficial for ensuring the reliability and efficiency of the exhaust fan 7. For example, the axial spacing Z2 between the end of the air guide ring 91 and the exhaust blade 72 can be 1 mm, 2.5 mm, 3 mm, 3.5 mm, 5 mm, etc.

[0333] In some embodiments, at least one of the fresh air fan 6 and the exhaust fan 7 includes: a wheel and blades connected to the wheel, and a transition fillet structure is provided at the connection between the blades and the wheel.

[0334] For example, exhaust fan 7 comprises an exhaust disc 71 and exhaust blades 72. A transitional fillet structure is provided at the junction between exhaust blades 72 and exhaust disc 71. This reduces concentrated stress at the junction between exhaust blades 72 and exhaust disc 71, improving overall strength. Furthermore, when air flows axially toward exhaust disc 71, the airflow is guided by the transitional fillet structure driven by the pressure differential, minimizing turbulence during deflection, thereby reducing energy consumption.

[0335] For example, the fresh air fan 6 comprises a fresh air disc 61 and fresh air blades 62. A transition fillet is provided at the junction of the fresh air blades 62 and the fresh air disc 61. This reduces concentrated stress at the junction between the fresh air blades 62 and the fresh air disc 61, improving overall strength. Furthermore, as air flows axially toward the fresh air disc 61, the pressure differential guides the airflow through the transition fillet, allowing it to flow more smoothly toward the fresh air blades 62, thereby reducing energy consumption.

[0336] In some embodiments, as Figure 15 As shown, the wall-mounted air conditioner 10000 may include a fixing bracket 17, which is located at the exhaust air inlet 901 and connected to the exhaust volute 9, and the second motor 5 is mounted on the fixing bracket 17. In this way, the fixed position of the second motor 5 is close to the axial distance between the fresh air fan 6 and the exhaust fan 7, and the bending moment borne on the second motor 5 during operation is small, which is conducive to improving the rotation stability of the fresh air fan 6 and the exhaust fan 7.

[0337] For example, Figure 15 As shown, the fixed bracket 17 includes a bracket end plate 171 and a bracket enclosure 172. The bracket enclosure 172 extends along the edge of the bracket end plate 171 toward the exhaust fan 7. The bracket enclosure 172 is connected to the exhaust volute 9. The bracket enclosure 172 and the bracket end plate 171 define a mounting cavity 174, and a portion of the second motor 5 is accommodated in the mounting cavity 174. For example, the fixed bracket 17 provides the mounting cavity 174 with a simple structure, which not only increases the support area for the second motor 5, that is, both the bracket end plate 171 and the bracket enclosure 172 can support the second motor 5, improving the mounting security of the second motor 5, but also the mounting cavity 174 can protect the electronic connector at the end of the second motor 5.

[0338] For example, Figure 15As shown, a wire threading hole 173 is provided on the bracket end plate 171. The wire threading hole 173 is assembled with the wiring harness connected to the second motor 5, and the connection between the wiring harness and the second motor 5 is located in the installation cavity 174. In this way, when the wiring harness connected to the second motor 5 is introduced from the outside, the wiring harness can be directly introduced from the side of the fixed bracket 17 away from the exhaust fan 7. Compared with the solution of leading the wires from the other sides of the fixed bracket 17, the solution provided by some embodiments of the present disclosure is conducive to reducing the length of the wiring harness, avoiding the wiring harness being too long and easily getting stuck in the exhaust fan 7, and the connection between the wiring harness and the second motor 5 is hidden in the installation cavity 174, which is not only beautiful, but also improves the reliability of the connection and avoids the connection being hit by foreign objects and causing poor contact.

[0339] In some embodiments, reference Figure 6 Wall-mounted air conditioner 10000 may include an insulating sleeve 18 , which is mounted over the wiring harness and connected to wire hole 173 . The provision of insulating sleeve 18 provides buffering protection for the wiring harness at its entry into wire hole 173 , preventing wear and tear that could cause electrical leakage when impacted. Furthermore, insulating sleeve 18 seals wire hole 173 to a certain extent, reducing the risk of condensation and moisture entering mounting cavity 174 and reducing the risk of moisture damage to the electronic connector at the end of second motor 5 .

[0340] For example, the projection of the fixing bracket 17 along the axial direction of the exhaust fan 7 is located within the projection of the exhaust volute 9 along the axial direction of the exhaust fan 7 .

[0341] like Figure 8 In the figure, the axially extreme left end of the fixed bracket 17 is p1, and the axially extreme right end is p2. The axially extreme left end of the exhaust volute 9 is q1, and the axially extreme right end is q2. Of these four vertical projection points on the axis of the exhaust fan 7, the projection point q1 coincides with the projection point p1, or is located to the left of the projection point p1. The projection point q2 coincides with the projection point p2, or is located to the right of the projection point p2.

[0342] The fixing bracket 17 is arranged in this way so that it does not extend beyond the exhaust volute 9 in the axial direction. The arrangement of the fixing bracket 17 does not cause an additional increase in the axial dimension, which is conducive to reducing the overall axial dimension.

[0343] In some embodiments, as Figure 1 As shown, a casing air inlet 103 is provided on the casing 1 at the end where the second motor 5 is located, and the casing air inlet 103 is located at the top of the main body 1000. A first connecting air duct V04 is formed between the casing air inlet 103 and the exhaust air inlet 901. The exhaust fan 7 rotates to drive the indoor air into the first connecting air duct V04 through the casing air inlet 103, and allows the indoor air to enter the exhaust volute 9 through the exhaust air inlet 901.

[0344] In other words, the housing 1 can be provided with a housing air inlet 103, connected to the second chamber V12. The housing 1 can also be provided with a housing air outlet 105, connected to the second chamber V12. No physical duct is required between the housing air inlet 103 and the exhaust air inlet 901; airflow is drawn in from the top solely by wind pressure. The housing air inlet 103 is located at the top of the housing 1, in an area not visible to the user. Concealing the housing air inlet 103 improves the aesthetics of the housing.

[0345] With this arrangement, the casing air inlet 103 at the top can be directly opposite to the exhaust air inlet 901, so that the distance between the casing air inlet 103 and the exhaust air inlet 901 is relatively close, and the exhaust air inlet path is to first enter the casing air inlet 103, and the casing air inlet 103 is located axially above the exhaust volute 9, so the casing air inlet 103 can enter the exhaust air inlet 901 axially. Compared with the prior art, after the exhaust air inlet 901 enters the exhaust volute 9 radially, during the rotation of the exhaust fan 7, it is affected by the resistance of the side wall of the exhaust volute 9, and the radial exhaust wind flows axially after entering radially, forming a winding exhaust air inlet path, resulting in large exhaust air inlet resistance and small exhaust air intake volume. The exhaust air inlet path of the embodiment of the utility model is unobstructed, and the exhaust air inlet path is directly reduced axially. After the indoor air enters the accommodating cavity along the casing air inlet 103, the exhaust air intake volume is further increased.

[0346] In addition, the indoor air is set to enter in a straight path, so that the indoor air can flow quickly to the electrical box 13, and the circuit board 133 and electronic components in the electrical box 13 can be quickly cooled to maintain the safe operation of the electrical box 13 and increase the discharge of indoor air.

[0347] In some embodiments, as Figure 1 As shown, a casing air inlet 103 is provided on the casing 1 at the end where the second motor 5 is located, and the casing air inlet 103 is located on the side of the main body 1000. The exhaust fan 7 rotates to drive the indoor air into the interior of the casing 1 through the casing air inlet 103, and allows the indoor air to enter the exhaust volute 9 through the exhaust air inlet 901.

[0348] That is to say, there is no need to connect a physical pipe between the casing air inlet 103 and the exhaust air inlet 901, and the casing air inlet 103 is located on the side of the main body 1000, that is, the opening direction of the casing air inlet 103 can intersect with the opening direction of the exhaust air inlet 901, wherein the casing air inlet 103 is arranged on the side of the main body 1000 away from the indoor heat exchanger 2, that is, the casing air inlet 103 can be arranged on the left side of the casing 1, so that the indoor air can enter the casing 1 from the left side and then enter the exhaust air inlet 901, so that the gas flows to the exhaust fan 7 through a curved path, realizing a different air intake method relative to the above.

[0349] Therefore, there are multiple options for the communication path between the casing air inlet 103 and the exhaust air inlet 901, which can be selectively set according to actual space requirements.

[0350] In some embodiments, the exhaust fan 7 and the fresh air fan 6 can both be made of plastic, thereby being light in weight and low in cost. Furthermore, the exhaust fan 7 and the fresh air fan 6 can also be made of resin, metal, or the like.

[0351] Similarly, the exhaust volute 9 and the fresh air volute 8 can both be plastic parts, thereby being light in weight and low in cost. For example, the exhaust volute 9 can be an injection molded part. In some embodiments, the exhaust volute 9 can also be a metal part.

[0352] In some embodiments, the wall-mounted air conditioner 10000 further includes an exhaust duct 142, which extends along the height of the main body 1000. The upper end of the exhaust duct 142 is connected to the exhaust outlet 901, and the lower end of the exhaust duct 142 extends to the outside of the housing 1. The exhaust duct 142 can be a component of the wall-mounted air conditioner 10000, or it can be configured by the user after purchasing the wall-mounted air conditioner 10000.

[0353] The exhaust air outlet 901 is open toward the side away from the indoor heat exchanger 2, and Figure 3 As shown, the casing 1 is provided with a avoidance opening 104, which can be set at the bottom of the casing 1 to avoid the exhaust duct 142. The exhaust duct 142 is detachably connected to the end of the exhaust outlet 901. In actual design, the exhaust duct 142 can be constructed as a bent duct, and the upper end of the exhaust duct 142 is connected to the exhaust outlet 901, and the lower end of the exhaust duct 142 is passed through the outside of the casing 1 and then connected to the outdoors. In this way, the indoor air can be discharged through the exhaust duct 142.

[0354] In this way, the exhaust duct 142 extends along the height direction of the main body 1000, rather than extending along the front-to-back direction to make the main body 1000 too thick, so that the wall-mounted air conditioner 10000 can still maintain a light and thin appearance, and the exhaust duct 142 extends to the outside of the shell 1 and will not take up too much additional space, so that the height dimension of the main body 1000 can be controlled.

[0355] In other embodiments, when the wall-mounted air conditioner 10000 is installed close to a side wall, the exhaust duct 142 may be configured to extend along the length direction of the main body 1000, and as shown in FIG. Figure 3 As shown, the casing 1 is provided with an avoidance opening 104, which can be set on the left side of the casing to avoid the exhaust duct 142, that is, one end of the exhaust duct 142 is connected to the exhaust outlet 901, and the other end of the exhaust duct 142 can be passed through the side of the casing 1 and extend outside the casing 1.

[0356] The fresh air intake pipe 141 and the exhaust duct 142 can be integrated into a single pipe, that is, at least one of the fresh air intake pipe 141 and the exhaust duct 142 can be placed alongside the drain pipe and the refrigerant pipe. This can be achieved by wrapping the multiple pipes with an external bundle or a bundled band, so that the multiple pipes appear as a single pipe. This reduces the number of connected pipes after the wall-mounted air conditioner 10000 is installed, resulting in a simpler appearance. This not only facilitates assembly but also avoids the risk of multiple pipes colliding.

[0357] In some embodiments, the accommodating cavity V1 in the housing 1 is configured to form two mutually non-ventilated first and second cavities V11 and V12 through internal structure coordination. Figure 2 As shown in FIG, a vertical partition can be installed within the housing 1 to separate the first chamber V11 from the second chamber V12. The indoor heat exchanger 2 and heat exchange fan 41 are located within the first chamber V11, and the two-way ventilation assembly is at least partially located within the second chamber V12. The heat exchange inlet 101 and heat exchange outlet 102 on the housing 1 are located corresponding to the first chamber V11.

[0358] For example, a casing air inlet 103 is provided on the casing 1 corresponding to the second chamber V12. The rotation of the exhaust fan 7 allows indoor air to enter the second chamber V12 from the casing air inlet 103 and then enter the exhaust volute 9 from the exhaust air inlet 901.

[0359] With this arrangement, the air flow inside the second chamber V12 will not be affected by the drive of the heat exchange fan 41, and the exhaust air inlet 901 can directly take in air from the second chamber V12. No connecting pipe is required between the casing air inlet 103 and the exhaust air inlet 901, which not only reduces the space occupied by the pipe body, but also allows the position of the casing air inlet 103 to be flexibly selected.

[0360] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0361] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wall-mounted air conditioner, comprising: A subject, comprising: A housing having an accommodating cavity formed therein and a heat exchange air inlet and a heat exchange air outlet formed on the housing; an indoor heat exchanger, disposed in the accommodating cavity; A base is disposed in the accommodating cavity and has a snail-tongue air duct formed thereon; a heat exchange fan, arranged in the volute-tongue air duct and located on a side of the indoor heat exchanger away from the heat exchange air inlet; a first motor disposed in the accommodating cavity and located at one end of the main body in the longitudinal direction, the first motor being configured to drive the heat exchange fan to rotate so as to exchange heat between air inside the air conditioner and the indoor space, the first motor having a first output shaft, the heat exchange fan being connected to the first output shaft, and the first output shaft extending along the longitudinal direction of the main body; It is characterized by further comprising: A second motor is disposed in the accommodating cavity and is located at the other end of the main body in the longitudinal direction. The second motor includes: a stator portion having a coil wound thereon; a rotor portion, arranged around an outer side of the stator portion in a radial direction of the stator portion; a motor housing connected to the rotor portion; a second output shaft, the second output shaft being fixedly connected to the motor housing and extending along a height direction of the main body; a fresh air fan, the fresh air fan being a centrifugal fan with axial air intake and radial air discharge, the fresh air fan being connected to the second output shaft, the axial direction of the fresh air fan being along the height direction of the main body, and the fresh air fan being located below the stator portion in the height direction of the main body; An exhaust fan, the exhaust fan being a centrifugal fan with axial air intake and radial air discharge, the exhaust fan being sleeved on the radially outer side of the motor housing, the exhaust fan being fixedly connected to the motor housing, the axial direction of the exhaust fan being along the height direction of the main body, and the exhaust fan being located above the fresh air fan in the height direction of the main body; The second motor drives the fresh air fan and the exhaust fan to rotate synchronously in a working state; a fresh air volute, wherein a fresh air duct is formed in the fresh air volute, the fresh air fan is installed in the fresh air volute, and a fresh air inlet and a fresh air outlet are formed on the fresh air volute. The rotation of the fresh air fan can allow outdoor air to enter the fresh air volute from the fresh air inlet, and can allow outdoor air entering the fresh air volute to enter the room from the fresh air outlet; an exhaust volute, wherein an exhaust duct is formed in the exhaust volute, the exhaust fan is installed in the exhaust volute, an exhaust air inlet and an exhaust air outlet are formed on the exhaust volute, the exhaust air inlet is open upward along the up and down direction of the main body, and the rotation of the exhaust fan can allow indoor air to enter the exhaust volute from the exhaust air inlet, and can allow indoor air entering the exhaust volute to be discharged to the outside through the exhaust air outlet; An electrical box is provided in the accommodating cavity. The electrical box and the second motor are located at the same end in the length direction of the main body. In the height direction of the main body, the electrical box is located above the exhaust fan.

2. The wall-mounted air conditioner according to claim 1, characterized in that: The electrical box includes: A box cover, wherein a box inner cavity is formed in the box cover, a box air inlet and a box air outlet are formed in the box cover, and the box air outlet is communicated with the exhaust air inlet; a circuit board, the circuit board being installed in the inner cavity of the box; The rotation of the exhaust fan can also allow a portion of the indoor air to enter the box cavity from the box air inlet, flow through the circuit board, and then flow out from the box air outlet and flow toward the exhaust air inlet.

3. The wall-mounted air conditioner according to claim 2, characterized in that: In the height direction of the main body, the box air inlet is arranged at the top of the box outer cover, and the box air outlet is arranged at the bottom of the box outer cover.

4. The wall-mounted air conditioner according to claim 2, characterized in that: In a projection along the height direction of the main body, the box air inlet and the box air outlet coincide with each other or are at least partially staggered.

5. The wall-mounted air conditioner according to claim 2, characterized in that: The box air inlet and the box air outlet are respectively located on both sides of the circuit board. The circuit board is provided with heat dissipation holes. The indoor air at the box air inlet flows through the circuit board through the heat dissipation holes and then flows to the box air outlet.

6. The wall-mounted air conditioner according to claim 5, characterized in that: In the height direction of the main body, the box air inlet and / or the box air outlet are directly opposite to the heat dissipation holes.

7. The wall-mounted air conditioner according to claim 5, characterized in that: The circuit board is provided with a plurality of heat dissipation structures on a side facing the box air outlet, and heat dissipation gaps are formed between the plurality of heat dissipation structures. The indoor air at the heat dissipation holes can flow toward the box air outlet through the heat dissipation gaps.

8. The wall-mounted air conditioner according to claim 5, characterized in that: The circuit board is provided with a plurality of heat dissipation structures on a side facing the box air inlet, and heat dissipation gaps are formed between the plurality of heat dissipation structures. The indoor air at the box air inlet flows toward the heat dissipation holes through the heat dissipation gaps.

9. The wall-mounted air conditioner according to claim 1, characterized in that: The exhaust air outlet is arranged on the peripheral wall of the exhaust volute, and the exhaust air outlet is arranged to be open in a direction away from the heat exchange fan in the length direction of the main body.

10. The wall-mounted air conditioner according to claim 1, characterized in that: The fresh air inlet is opened downward along the height direction of the main body.

11. The wall-mounted air conditioner according to claim 1, characterized in that: The fresh air outlet is opened toward the front and bottom.

12. The wall-mounted air conditioner according to any one of claims 1 to 11, characterized in that: The fresh air volute comprises: a first volute, the first volute being detachably connected to the exhaust volute; a second volute, the second volute being located on a side of the first volute facing away from the exhaust volute, and the second volute being detachably connected to the first volute; The first volute and the second volute together define a volute cavity, and the fresh air fan is located in the volute cavity; The second volute is formed with the fresh air inlet on a side facing away from the first volute.

13. The wall-mounted air conditioner according to claim 12, characterized in that: The second volute comprises: The second volute half is located on the side of the first volute away from the exhaust volute, and the second volute half is detachably connected to the first volute, the second volute half is provided with an axial vent at the center in the radial direction, the volute cavity is formed between the second volute half and the first volute, the axial air inlet end of the fresh air fan is arranged toward the axial vent, and the second volute half and the first volute surround the fresh air outlet.

14. The wall-mounted air conditioner according to claim 13, wherein: The second volute also includes: a fan cover, which is located on the side of the second volute half away from the first volute, and the fan cover is connected to the second volute half. The cavity enclosed by the fan cover and the second volute half is a fresh air cavity, and the fresh air inlet is formed in the fan cover.

15. The wall-mounted air conditioner according to claim 14, characterized in that: It also includes a purification component, which is installed in the fresh air cavity and is connected to the second volute. The rotation of the fresh air fan can allow the outdoor air entering the fresh air volute to flow through the purification component and then enter the room from the fresh air outlet.

16. The wall-mounted air conditioner according to claim 12, wherein: The exhaust fan includes an exhaust wheel disc and exhaust blades, wherein the exhaust blades are located at the outer edge of the exhaust wheel disc and extend in the axial direction of the exhaust wheel disc in a direction away from the fresh air fan; The exhaust fan includes a raised portion provided on the exhaust wheel disc, the center of the raised portion is located on the axis of the exhaust fan, and the raised portion extends relative to the exhaust wheel disc in a direction toward the fresh air fan, so that a side of the raised portion close to the second motor forms a receiving groove for the second motor; At least a portion of the stator part and at least a portion of the rotor part are accommodated in the accommodating groove.

17. The wall-mounted air conditioner according to claim 16, wherein: The first volute includes a first volute end plate and a first volute enclosure plate, wherein the first volute enclosure plate is formed by extending along an edge of the first volute end plate in a direction away from the exhaust volute; Wherein, a central portion of the first volute end plate forms a recessed portion facing the fresh air fan; At least a portion of the protrusion is located within the recess.

18. The wall-mounted air conditioner according to claim 17, wherein: A perforated portion is provided at the center of the recessed portion, and the second output shaft is connected to the fresh air fan through the perforated portion.

19. The wall-mounted air conditioner according to claim 12, wherein: The first volute and the second volute define the fresh air outlet.

20. The wall-mounted air conditioner according to claim 1, characterized in that: The fresh air fan comprises: A fresh air wheel, the fresh air wheel is coaxially arranged with the second motor and connected to the second output shaft of the second motor; The fresh air blades include a first fresh air blade, which is extended from the fresh air wheel toward a direction away from the exhaust fan.

21. The wall-mounted air conditioner according to claim 20, characterized in that: The fresh air blade further includes a second fresh air blade, which extends from the fresh air wheel toward the exhaust fan.

22. The wall-mounted air conditioner according to claim 21, characterized in that: In the axial direction of the fresh air fan, the length of the second fresh air blade is smaller than the length of the first fresh air blade.

23. The wall-mounted air conditioner according to claim 20, wherein: A wheel hole is formed on the fresh air wheel, and a distance from the wheel hole to the center of the fresh air wheel is smaller than a distance from the fresh air blade to the center of the fresh air wheel.

24. The wall-mounted air conditioner according to claim 1, characterized in that: The total axial thickness of the stator part, the rotor part and the motor housing is M, and the axial thickness of the fresh air fan is W, where W>M.

25. The wall-mounted air conditioner according to claim 1, characterized in that: The area of ​​the outer circular curved surface of the fresh air fan is S1, and the area of ​​the outer circular curved surface of the exhaust fan is S2; S1=πD1*W, D1 is the outer diameter of the fresh air fan, and W is the axial thickness of the fresh air fan; S2=πD2*N, D2 is the outer diameter of the exhaust fan, and N is the axial thickness of the exhaust fan; Satisfied, S1>S2.

26. The wall-mounted air conditioner according to claim 1, characterized in that: The axial thickness of the exhaust fan is N, and the axial thickness of the fresh air fan is W, wherein N <W。 27. The wall-mounted air conditioner according to claim 1, characterized in that: The total axial thickness of the stator part, the rotor part, and the motor housing is M, and the axial thickness of the exhaust fan is N, where M>N.

28. The wall-mounted air conditioner according to claim 1, characterized in that: The exhaust volute includes an air guide ring, which is in a circular tube shape and has a diameter that gradually decreases in the direction toward the fresh air volute. The area surrounded by the air guide ring forms the exhaust air inlet.

29. The wall-mounted air conditioner according to claim 28, characterized in that: The exhaust fan includes: an exhaust disc and exhaust blades, the exhaust disc is connected to the motor housing of the second motor, the exhaust blades are connected to the side of the exhaust disc away from the fresh air volute, and the exhaust blades are multiple and arranged along the circumferential direction; The edge of the exhaust blade away from the exhaust wheel disc is a blade side edge, the distance between the portion of the blade side edge close to the second motor and the exhaust wheel disc is reduced, and all the exhaust blades form a side edge concave at the portion where the distance between the blade side edge and the exhaust wheel disc is reduced; The end of the air guide ring is located in the side edge recess.

30. The wall-mounted air conditioner according to claim 1, characterized in that: A casing air inlet is provided on the casing at one end where the second motor is located, and the casing air inlet is located at the top of the main body. A first connecting air duct is formed between the casing air inlet and the exhaust air inlet. The rotation of the exhaust fan drives indoor air from the casing air inlet into the first connecting air duct, and allows the indoor air to enter the exhaust volute through the exhaust air inlet.

31. The wall-mounted air conditioner according to claim 1, characterized in that: The casing is provided with a casing air inlet at one end where the second motor is located, and the casing air inlet is located on the side of the main body. The exhaust fan rotates to drive indoor air into the interior of the casing through the casing air inlet, and allows the indoor air to enter the exhaust volute through the exhaust air inlet.

32. The wall-mounted air conditioner according to claim 1, characterized in that: It also includes an exhaust duct, which is extended along the height direction of the main body, the upper end of the exhaust duct is connected to the exhaust outlet, and the lower end of the exhaust duct is passed through to the outside of the casing.

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