Hanging type air conditioner

Abstract

The invention relates to a hanging type air conditioner, and belongs to the technical field of air conditioners, the hanging type air conditioner comprises a shell, an indoor heat exchanger, a second fan, a ventilation volute, a first fan, a controller and a driving motor, the shell is internally provided with a first inner cavity and a second inner cavity; a first air inlet is formed in the top of the shell; the second fan is arranged in the first inner cavity; a second air inlet and a second air outlet are formed in the ventilation volute; the driving motor drives the second fan and the first fan to rotate synchronously; the second air outlet is close to the first air inlet; the first air guide plate is arranged at the first air outlet; the second air guide plate is arranged between the first air guide plate and the first air outlet; the controller is configured to control the first air guide plate to turn over by a first preset angle from an initial position and control the second air guide plate to turn over by a second preset angle from the initial position when a control signal is received to enter a fresh air mode; the second preset angle is larger than the first preset angle.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly to a wall-mounted air conditioner. Background Art

[0002] An air conditioner, that is, an air regulator, refers to a device that uses artificial means to adjust and control parameters such as the temperature, humidity, and flow rate of the air in a building or structure. A fresh air air conditioner is a healthy and comfortable air conditioner with a fresh air function, which uses a fan to achieve the circulation and ventilation of the air between the room and the outdoor air.

[0003] In the prior art, an air conditioner includes a driving motor, a second fan, and a ventilation volute provided on a housing; a first fan rotates inside the ventilation volute; the second fan and the first fan are driven to rotate by one driving motor, and outdoor fresh air is introduced into the room by the rotation of the first fan.

[0004] When the first fan rotates, the second fan also rotates accordingly. If the air deflector of the air conditioner remains in the closed state, abnormal noises such as stuffy blockage sounds, thumping sounds, and whistling sounds will be generated in the air duct of the air conditioner. At the same time, air will leak in around the air deflector due to the operation of the air conditioner fan. Summary of the Invention

[0005] The present invention solves at least one of the technical problems in the related art to a certain extent.

[0006] For this reason, the present application aims to provide a wall-mounted air conditioner in which the flipping angle of the second air deflector is greater than that of the first air deflector, so the opening of the first air deflector is smaller; the air flow output by the second fan is guided by the second air deflector and then output to the first air deflector, and under the action of the first air deflector, the air flow is guided upward so that the air flow flows to the second air outlet and is mixed with fresh air. The air flow output by the second fan can be output through the first air outlet, avoiding abnormal noises such as stuffy blockage sounds, thumping sounds, and whistling sounds caused by the inability of the air flow to be output inside the first inner cavity of the housing, and the air flow output through the first air outlet is guided upward, avoiding the air flow from directly blowing on the user and improving the user experience.

[0007] To achieve the above object, the present invention provides a wall-mounted air conditioner, including: A housing, inside which a first inner cavity and a second inner cavity are provided along the length direction; a first air inlet is opened at the top of the housing, and a first air outlet is opened at the bottom of the front side of the housing; An indoor heat exchanger, which is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange air flow; a second fan, the second fan being arranged in the first inner cavity, and the second fan being arranged below the indoor heat exchanger; indoor airflow enters the housing through the first air inlet under the action of the second fan, and is output to the room through the first air outlet after being heat exchanged by the indoor heat exchanger; A ventilation volute, the ventilation volute is arranged in the second inner cavity, and a second air inlet and a second air outlet are opened on the ventilation volute; a first fan, the first fan being disposed in the ventilation volute; a driving motor, wherein the driving motor drives the second fan and the first fan to rotate synchronously; A first air guide plate, the first air guide plate is arranged at the first air outlet, and the first air guide plate is arranged along the length direction of the first air outlet; a second air guide plate, the second air guide plate being arranged between the first air guide plate and the indoor heat exchanger, and the second air guide plate being arranged along a length direction of the first air outlet; The second air outlet is close to the first air inlet; A controller, wherein the controller is configured to, when entering the fresh air mode, control the first air guide plate to flip from an initial position to a first preset angle, and control the second air guide plate to flip from an initial position to a second preset angle; the second preset angle is greater than the first preset angle; The airflow passing through the first air outlet is guided to the first air guide plate by the second air guide plate, and the first air guide plate guides the airflow to the top of the shell.

[0008] In the technical solution, the flip angle of the second air guide plate is greater than the flip angle of the first air guide plate, so the opening of the first air guide plate is smaller; the airflow output by the second fan is guided by the second air guide plate and then output to the first air guide plate, and under the action of the first air guide plate, the airflow is guided upward so that the airflow flows to the second air outlet and mixes with the fresh air. The airflow output by the second fan can be output through the first air outlet, avoiding abnormal noises such as muffled sound, thumping sound, and whistling sound caused by the airflow being unable to be output inside the first inner cavity of the shell, and the airflow output through the first air outlet is directed upward to avoid the airflow blowing directly to the user, thereby improving the user experience.

[0009] In some embodiments of the present application, the value of the second preset angle is twice the value of the first preset angle.

[0010] In the technical solution, this design ensures that the second air guide plate can guide the airflow passing through the second fan to the first air guide plate; and ensures that the first air guide plate can guide the airflow passing through the second fan to the top of the shell and mix it with the fresh air at the second air outlet.

[0011] In some embodiments of the present application, the controller is configured such that, when entering the fresh air mode, the first preset angle is 5°~8°.

[0012] In the technical solution, at this angle, it is ensured that the first air outlet is partially opened by the first air guide plate, and the opened part of the first air outlet is sufficient for the airflow to be output through the second fan, thereby avoiding the airflow passing through the second fan being unable to be output in the first inner cavity, resulting in abnormal noises such as muffled sound, rumbling sound, and whistling sound.

[0013] In some embodiments of the present application, the controller is configured such that, when entering the fresh air mode, the second preset angle is 10°~16°.

[0014] In the technical solution, at this angle, the second air guide plate guides the airflow passing through the second fan to the first air guide plate, ensuring that the airflow is guided by the first air guide plate so that a sufficient amount of airflow can be guided to the top of the shell to mix with the fresh air.

[0015] In some embodiments of the present application, a baffle is provided at the second air inlet, and the baffle is used to close the second air inlet; The controller is configured to, when entering the fresh air mode, control the driving motor to drive the second fan and the first fan to rotate synchronously, and control the baffle to open the second air inlet.

[0016] In some embodiments of the present application, when the first air guide plate is in an initial position, the first air outlet is closed by the first air guide plate.

[0017] In some embodiments of the present application, an outdoor temperature sensor is further included, wherein the outdoor temperature sensor is used to detect the outdoor temperature; The controller is configured to, when receiving a control signal to enter a fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value, and when the outdoor temperature is greater than the preset temperature value, turn on the drive motor, control the baffle to open the second air inlet, control the first air guide plate to flip from an initial position to a first preset angle, and control the second air guide plate to flip from an initial position to a second preset angle.

[0018] The present application also provides a wall-mounted air conditioner, which comprises: A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the length direction; a first air inlet is opened at the top of the shell, and a first air outlet is opened at the front bottom of the shell; An indoor heat exchanger, wherein the indoor heat exchanger is disposed in the first inner cavity, and the indoor heat exchanger performs heat exchange on the air passing through the indoor heat exchanger to form a heat exchange airflow; a second fan, the second fan being arranged in the first inner cavity, and the second fan being arranged below the indoor heat exchanger; indoor airflow enters the housing through the first air inlet under the action of the second fan, and is output to the room through the first air outlet after being heat exchanged by the indoor heat exchanger; A ventilation volute, the ventilation volute is arranged in the second inner cavity, and a second air inlet and a second air outlet are opened on the ventilation volute; a first fan, the first fan being disposed in the ventilation volute; a driving motor, wherein the driving motor drives the second fan and the first fan to rotate synchronously; A first air guide plate, the first air guide plate is arranged at the first air outlet, and the first air guide plate is arranged along the length direction of the first air outlet; A first motor, which is disposed at the first air outlet and is used to drive the first air guide plate to flip; a second air guide plate, the second air guide plate being arranged between the first air guide plate and the indoor heat exchanger, and the second air guide plate being arranged along a length direction of the first air outlet; a second motor, the second motor being disposed at the first air outlet, and the second motor being used for driving the second air guide plate to flip; The second air outlet is close to the first air inlet; A controller, wherein the controller is configured to, when entering the fresh air mode, control the first motor to rotate by a third preset number of steps, and control the second motor to rotate by a fourth preset number of steps; the fourth preset number of steps is greater than the third preset number of steps; The airflow passing through the first air outlet is guided to the first air guide plate by the second air guide plate, and the first air guide plate guides the airflow to the top of the shell.

[0019] In the technical solution, the number of torsion steps of the first motor and the second motor is set so that the number of flipping steps of the second air guide plate is greater than the number of flipping steps of the first air guide plate, so the opening of the first air guide plate is smaller; the airflow output by the second fan is guided by the second air guide plate and then output to the first air guide plate, and under the action of the first air guide plate, the airflow is guided upward so that the airflow flows to the second air outlet and mixes with the fresh air. The airflow output by the second fan can be output through the first air outlet, avoiding abnormal noises such as muffled sound, thumping sound, and whistling sound caused by the inability of the airflow to be output inside the first inner cavity of the shell, and the airflow output through the first air outlet is directed upward to avoid the airflow blowing directly to the user, thereby improving the user experience.

[0020] In some embodiments of the present application, the value of the fourth preset number of steps is twice the value of the third preset number of steps.

[0021] In the technical solution, this design ensures that the second air deflector can direct the air flow passing through the second fan to the first air deflector; and it ensures that the first air deflector can direct the air flow passing through the second fan above the housing and mix it with the fresh air at the second air outlet.

[0022] In some embodiments of the present application, the value of the third preset number of steps is 3 to 5; the value of the fourth preset number of steps is 6 to 10.

[0023] In the technical solution, through this preset number of steps, the second air deflector can direct the air flow passing through the second fan to the first air deflector; and it ensures that the first air deflector can direct the air flow passing through the second fan above the housing and mix it with the fresh air at the second air outlet; and the air flow passing through the second fan can smoothly pass through the second air deflector and the first air deflector and be output from the first air outlet, avoiding abnormal noises such as stuffy blockage sounds, thumping sounds, and whistling sounds caused by the inability of the air flow passing through the second fan to be output in the first inner cavity.

[0024] In some embodiments of the present application, the controller is configured such that when entering the fresh air mode, the first motor drives the first air deflector to flip by an angle of 5° to 8°.

[0025] In the technical solution, at this angle, it is ensured that the first air deflector opens a part of the first air outlet, and the opened part of the first air outlet is sufficient for the air flow passing through the second fan to be output, avoiding abnormal noises such as stuffy blockage sounds, thumping sounds, and whistling sounds caused by the inability of the air flow passing through the second fan to be output in the first inner cavity.

[0026] In some embodiments of the present application, the controller is configured such that when entering the fresh air mode, the second motor drives the second air deflector to flip by an angle of 10° to 16°.

[0027] In some embodiments of the present application, the controller is configured such that when entering the fresh air mode, it controls the first motor to twist the third preset number of steps, and after a preset time, it then controls the second motor to twist the fourth preset number of steps.

[0028] In some embodiments of the present application, when the first motor is in the initial state, the first air outlet is closed by the first air deflector.

[0029] In some embodiments of the present application, it further includes an outdoor temperature sensor, and the outdoor temperature sensor is used to detect the outdoor temperature; The controller is configured to, when receiving a control signal to enter the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value, and when the outdoor temperature is greater than the preset temperature value, turn on the drive motor, control the baffle to open the second air inlet, control the first motor to twist a third preset number of steps from the initial state, and control the second motor to twist a fourth preset number of steps from the initial state.

[0030] In the technical solution, at this angle, the second air deflector guides the air flow passing through the second fan to the first air deflector, ensuring that the air flow is guided by the first air deflector so that a sufficient amount of air flow can be guided above the housing to be mixed with the fresh air.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0032] Figure 1 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present application; Figure 2 is a front view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 3 is a top view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 4 is a side view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 5 is a sectional view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 6 is a sectional view at the first air deflector of a wall-mounted air conditioner according to an embodiment of the present application; Figure 7 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present application; Figure 8 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present application; Figure 9 is a working flow chart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 10 is a working flow chart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 11 is a working flow chart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 12 is a working flow chart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 13 is a working flow chart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 14 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 15 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 16 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 17 is the overall structural schematic diagram of a wall-mounted air conditioner according to an embodiment of the present application; Figure 18 is the front view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 19 is the top view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 20 is the side view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 21 is the sectional view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 22 is the sectional view at the first air deflector of a wall-mounted air conditioner according to an embodiment of the present application; Figure 23 is the internal structural schematic diagram of a wall-mounted air conditioner according to an embodiment of the present application; Figure 24 is the front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present application; Figure 25 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 26 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 27 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 28 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 29 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 30 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 31 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 32 is the working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 33 is the overall structural schematic diagram of a wall-mounted air conditioner according to an embodiment of the present application; Figure 34 is the front view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 35 is a top view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 36 is a side view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 37 is a sectional view of a wall-mounted air conditioner according to an embodiment of the present application; Figure 38 is a schematic structural diagram of a ventilation volute of a wall-mounted air conditioner according to an embodiment of the present application; Figure 39 is an exploded view of a ventilation volute of a wall-mounted air conditioner according to an embodiment of the present application; Figure 40 is an exploded view of a ventilation volute of a wall-mounted air conditioner according to an embodiment of the present application; Figure 41 is a schematic internal structure diagram of a wall-mounted air conditioner according to an embodiment of the present application; Figure 42 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present application; Figure 43 is a working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 44 is a working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 45 is a working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 46 is a working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 47 is a working flowchart of a wall-mounted air conditioner according to an embodiment of the present application; Figure 48 is a timing diagram of a wall-mounted air conditioner according to an embodiment of the present application; Figure 49 is a schematic structural diagram of an embodiment of an indoor unit of an air conditioner according to the present invention; Figure 50 is a schematic structural diagram when a fresh air module, a second fan and a casing are assembled in an embodiment of an indoor unit of an air conditioner according to the present invention; Figure 51 is a schematic structural diagram from another angle when a fresh air module, a second fan and a casing are assembled in an embodiment of an indoor unit of an air conditioner according to the present invention; Figure 52 is a schematic structural diagram of a casing in an embodiment of an indoor unit of an air conditioner according to the present invention; Figure 53 is Figure 52 an enlarged view of the structure at A in Figure 54It is a schematic structural diagram of the connection between the first fan and the second fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 55 It is a cross-sectional view of the connection between the first fan and the second fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 56 It is a schematic structural diagram of the drive motor in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 57 It is a schematic structural diagram of the fresh air module in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 58 It is a schematic structural diagram of the fresh air module from another angle in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 59 It is an exploded view of the fresh air module in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 60 It is a schematic structural diagram of the assembly of the connecting piece and the first volute in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 61 It is a schematic structural diagram of the first volute in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 62 It is a cross-sectional view of the assembly of the connecting piece and the first volute in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 63 It is a schematic structural diagram of the assembly of the connecting piece and the first fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 64 It is a schematic structural diagram of the first fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 65 It is a schematic structural diagram of the first fan from another angle in an embodiment of the indoor unit of the air conditioner of the present invention Figure 66 It is a half-sectional structural diagram of the assembly of the connecting piece and the first fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 67 It is a schematic structural diagram of the connecting piece in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 68 It is a schematic structural diagram of the connecting piece from another angle in an embodiment of the indoor unit of the air conditioner of the present invention Figure 69 It is a half-sectional structural diagram of the connecting piece in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 70 It is a schematic structural diagram of the bearing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 71 It is a cross-sectional view of the bearing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 72It is a schematic structural diagram of a bearing ball in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 73 It is a schematic structural diagram when the bearing and the bearing seat are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 74 It is a schematic cross-sectional view when the bearing and the bearing seat are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 75 It is a schematic structural diagram of the bearing seat in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 76 It is a schematic structural diagram of the bearing seat from another angle in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 77 It is a schematic structural diagram of an embodiment of the indoor unit of the air conditioner of the present invention; Figure 78 It is a schematic internal structural diagram of an embodiment of the indoor unit of the air conditioner of the present invention; Figure 79 It is a schematic structural diagram when the fresh air module, the second fan and the drive motor are assembled inside the casing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 80 It is a schematic structural diagram of the fresh air module assembled with the casing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 81 It is Figure 80 The enlarged view of the structure at A in; Figure 82 It is a schematic structural diagram inside the casing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 83 It is Figure 82 The enlarged view of the structure at B in; Figure 84 It is a schematic structural diagram of the bearing seat assembled inside the casing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 85 It is Figure 84 The enlarged view of the structure at C in; Figure 86 It is a schematic structural diagram of the fresh air module in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 87 It is an exploded view of the fresh air module in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 88 It is a schematic structural diagram of the connection between the first fan and the second fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 89 It is a cross-sectional view when the first fan and the second fan are connected in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 90 It is a schematic structural diagram when the seal is assembled with the bearing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 91 It is a schematic structural view of another angle when the seal and the bearing are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 92 It is a cross-sectional view when the seal, the bearing and the bearing seat are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 93 It is a schematic structural view of the bearing balls in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 94 It is a schematic structural view when the seal, the bearing and the bearing seat are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 95 It is a schematic structural view of the bearing seat in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 96 It is a schematic structural view of another angle of the bearing seat in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 97 It is a schematic structural view of an embodiment of the indoor unit of the air conditioner of the present invention; Figure 98 It is a schematic structural view when the fresh air module, the second blower and the housing are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 99 It is a schematic structural view of another angle when the fresh air module, the second blower and the housing are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 100 It is a schematic structural view of the housing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 101 It is a schematic structural view of the connection between the first blower and the second blower in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 102 It is a cross-sectional view when the first blower and the second blower are connected in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 103 It is a schematic structural view of the drive motor in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 104 It is a schematic structural view of the bearing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 105 It is a cross-sectional view of the bearing in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 106 It is a schematic structural view of the bearing balls in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 107 It is a schematic structural view when the bearing and the bearing seat are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 108 It is a schematic cross-sectional view when the bearing and the bearing seat are assembled in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 109 It is a schematic structural diagram of a bearing seat in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 110 It is a schematic structural diagram of the bearing seat from another angle in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 111 It is a schematic structural diagram of a fresh air module in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 112 It is a schematic structural diagram of the fresh air module from another angle in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 113 It is a schematic structural diagram of a first fan in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 114 It is an exploded view of the fresh air module in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 115 It is a cross-sectional view of a ventilation volute in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 116 It is Figure 115 The partial enlarged view at position A in Figure 117 It is Figure 115 The partial enlarged view at position B in Figure 118 It is a schematic structural diagram of a first volute in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 119 It is a schematic structural diagram of the first volute from another angle in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 120 It is a schematic structural diagram of a second volute in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 121 It is a schematic structural diagram of the second volute from another angle in an embodiment of the indoor unit of the air conditioner of the present invention; Figure 122 It is a schematic structural diagram of a ventilation housing in an embodiment of the indoor unit of the air conditioner of the present invention. Detailed implementation manners

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integral; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature. In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0034] Next, the present invention will be specifically described by way of exemplary embodiments. However, it should be understood that, without further elaboration, the elements, structures, and features in one embodiment can also be beneficially incorporated into other embodiments. In this application, the wall-mounted air conditioner performs a refrigeration cycle by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, throttling, and evaporation, and supplies cold or heat to the air that has been conditioned and heat-exchanged. The compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process. The expansion valve throttles the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure gas-liquid two-phase refrigerant.

[0035] In the evaporator, after the refrigerant that expands in the expansion valve absorbs heat and evaporates, it is in a low-temperature and low-pressure state. Subsequently, the refrigerant gas returns to the compressor. The evaporator can achieve a refrigeration effect by using the latent heat of vaporization of the refrigerant to exchange heat with the material to be cooled.

[0036] The air conditioner includes an indoor unit and an outdoor unit, and the indoor unit includes a housing. Throughout the cycle, the indoor unit of the air conditioner can adjust the temperature of the indoor space. The outdoor unit of the wall-mounted air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of the wall-mounted air conditioner includes an indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger can be used as a condenser or an evaporator respectively. When the indoor heat exchanger is used as a condenser, the indoor unit of the air conditioner serves as a heater in the heating mode. When the indoor heat exchanger is used as an evaporator, the indoor unit of the air conditioner serves as a cooler in the cooling mode.

[0037] In the following full text, the first fan is preferably a fresh air fan. The second air outlet is preferably a fresh air outlet. The first blower is preferably a fresh air blower. The second air inlet is preferably a fresh air inlet. The ventilation opening is preferably a fresh air opening. The limiting space is preferably a limiting groove; the clamping space is preferably a clamping groove; the positioning space is preferably a positioning groove; the installation space is preferably an installation groove; the through channel is preferably a through channel.

[0038] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. As attached Figures 1 to 16 As shown, in a schematic embodiment of the wall-mounted air conditioner of the present invention, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a second fan 400, a ventilation volute 700, a first fan 300, a first air deflector 230, a second air deflector 240, a controller, and a driving motor 500. Among them, a first inner cavity and a second inner cavity are arranged inside the housing 100 along the length direction; a first air inlet 101 is opened at the top of the housing 100, and a first air outlet 102 is opened at the bottom of the front side of the housing 100.

[0039] The indoor heat exchanger is arranged in the first inner cavity. The indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange air flow; the second fan 400 is arranged in the first inner cavity, and the second fan 400 is arranged below the indoor heat exchanger; the indoor air flow enters the housing 100 through the first air inlet 101 under the action of the second fan 400, and is output to the indoor through the first air outlet 102 after being heat-exchanged by the indoor heat exchanger.

[0040] The ventilation volute 700 is disposed within the second inner cavity. A second air inlet and a second air outlet 720 are formed in the ventilation volute 700. The first fan 300 is disposed within the ventilation volute 700. The drive motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously. The second air outlet 720 is close to the first air inlet 101.

[0041] , the first air deflector 230 is disposed at the first air outlet 102, and the first air deflector is arranged along the length direction of the first air outlet; the second air deflector 240 is disposed between the first air deflector 230 and the indoor heat exchanger, and the second air deflector 240 is arranged along the length direction of the first air outlet 102.

[0042] The controller is configured to, when entering the fresh air mode, control the first air deflector 230 to flip a first preset angle from the initial position, and control the second air deflector 240 to flip a second preset angle from the initial position; the second preset angle is greater than the first preset angle; the air flow passing through the first air outlet 102 is guided by the second air deflector 240 to the first air deflector 230, and the first air deflector 230 guides the air flow to the top of the housing 100.

[0043] In the prior art, the drive motor drives the second fan and the first fan to rotate synchronously. Therefore, when the drive motor drives the first fan to rotate, the second fan also rotates accordingly. If the air deflector of the air conditioner remains closed, abnormal noises such as muffled sounds, thumping sounds, and whistling sounds will be generated in the air duct of the air conditioner. If the first air deflector and the second air deflector are fully opened to the maximum angle, the air flow of the air conditioner will directly blow towards the user, causing discomfort to the user.

[0044] In this application, through the above solution, the flipping angle of the second air deflector 240 is greater than that of the first air deflector 230. Therefore, the opening of the first air deflector 230 is smaller. The air flow output by the second fan 400 is guided by the second air deflector 240 and then output to the first air deflector 230. Under the action of the first air deflector 230, the air flow is guided upward so that the air flow output from the air outlet 102 flows towards the top of the housing 100. This air flow flows towards the second air outlet 720 and is mixed with fresh air and output to the room. The air flow output by the second fan 400 can be output through the first air outlet 102, avoiding abnormal noises such as muffled sounds, thumping sounds, and whistling sounds caused by the air flow being unable to be output inside the first inner cavity of the housing 100. And the air flow output through the first air outlet 102 is guided upward, avoiding the air flow from directly blowing towards the user and improving the user experience.

[0045] In addition, the air flow output from the air outlet 102 flows towards the top of the housing 100. This air flow is mixed with fresh air and then re-enters the housing 100 through the first air inlet 101 for circulation, achieving the effect of circulating air and further improving the user experience.

[0046] In addition, the air flow output from the empty air outlet 102 flows towards the top of the housing 100, and this air flow can further drive the fresh air flow to flow, making the fresh air flow flow farther, increasing the fresh air volume in the room to improve the effect of the fresh air mode.

[0047] In some embodiments, the control signal is issued by the user through a remote controller or mobile phone software, or is issued through the cloud.

[0048] In some embodiments, when the first air deflector 230 is in the initial position, the first air deflector 230 completely closes the first air outlet 102, and the turning angle of the first air deflector 230 is 0°. When entering the fresh air mode, the first air deflector 230 starts to turn a first preset angle from the position where it completely closes the first air outlet 102 to open the first air outlet 102.

[0049] When the second air deflector 240 is in the initial position, the turning angle of the second air deflector 240 is 0°. When entering the fresh air mode, the second air deflector 240 starts to turn a second preset angle from the initial position.

[0050] In some embodiments, the value of the second preset angle is twice the value of the first preset angle. Through this design, it is ensured that the second air deflector 240 can direct the air flow passing through the second fan 400 to the first air deflector 230; and it is ensured that the first air deflector 230 can direct the air flow passing through the second fan 400 above the housing 100 and mix it with the fresh air at the second air outlet 720.

[0051] Please refer to Figures 9 to 15 , in some embodiments, the first preset angle is 5° - 8°; the second preset angle is 10° - 16°. At this angle, the second air deflector 240 directs the air flow passing through the second fan 400 to the first air deflector 230, ensuring that the air flow is directed by the first air deflector 230 so that a sufficient amount of air flow can be directed above the housing 100 to mix with the fresh air.

[0052] Please refer to Figures 9 to 15 , in some embodiments, the controller is configured to, when entering the fresh air mode, control the first air deflector 230 to turn a first preset number of steps, and control the second air deflector 240 to turn a second preset number of steps; the first preset number of steps is greater than the second preset number of steps.

[0053] Please refer to Figures 9 to 15In some embodiments, the value of the first preset number of steps is 3 to 5; the value of the second preset number of steps is 6 to 10. That is, the controller is configured to control the first air guide plate 230 to flip 3 to 5 steps and the second air guide plate 240 to flip 6 to 10 steps when receiving a control signal to enter the fresh air mode. Through the preset number of steps, the second air guide plate 240 can guide the airflow passing through the second fan 400 to the first air guide plate 230; and ensure that the first air guide plate 230 can guide the airflow passing through the second fan 400 to the top of the housing 100 and mix it with the fresh air at the second air outlet 720; and the airflow passing through the second fan 400 can smoothly pass through the second air guide plate 240 and the first air guide plate 230 and be output from the first air outlet 102, avoiding the airflow passing through the second fan 400 cannot be output in the first inner cavity, resulting in abnormal noises such as muffled sound, thumping sound, and whistling sound.

[0054] Please refer to Figures 9 to 15 In some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, set the first preset angle to 5° to 8°; that is, control the first air guide plate 230 to flip 3 to 5 steps, so that the flip angle of the first air guide plate 230 is 5° to 8°. At this angle, it is ensured that the first air guide plate 230 partially opens the first air outlet 102, and the opened portion of the first air outlet 102 is sufficient for the airflow output through the second fan 400, avoiding the airflow through the second fan 400 from being unable to be output in the first inner cavity, resulting in abnormal noises such as muffled sound, thumping sound, and whistling sound.

[0055] The controller is configured such that, when entering the fresh air mode, the second preset angle is 10° to 16°; that is, the second air guide plate 240 is controlled to flip 6 to 10 steps; so that the flip angle of the second air guide plate 240 is 10° to 16°. At this angle, the second air guide plate 240 guides the airflow passing through the second fan 400 to the first air guide plate 230, ensuring that the airflow is guided by the first air guide plate 230 so that a sufficient amount of airflow can be guided to the top of the housing 100 to mix with the fresh air.

[0056] In some embodiments, when the first air guide plate 230 flips, the flip angle of each first preset step is the flip angle of the first air guide plate 230 divided by the value of the first preset step.

[0057] In some embodiments, the value of the first preset step number is 3, and the flip angle of the first air guide plate 230 is 5°. Then, the flip angle of the first air guide plate 230 is 5° / 3 each time a preset step number is run.

[0058] In some embodiments, the value of the first preset step number is 5, and the flip angle of the first air guide plate 230 is 8°. Then, the flip angle of the first air guide plate 230 is 8° / 5 each time a preset step number is run.

[0059] In some embodiments, when the second air deflector 240 flips, the angle flipped by each second preset number of steps is the value obtained by dividing the flipping angle of the second air deflector 240 by the second preset number of steps.

[0060] In some embodiments, if the value of the second preset number of steps is 6 and the flipping angle of the second air deflector 240 is 10°, then the flipping angle of the second air deflector 240 for each operation of a preset number of steps is 5° / 3.

[0061] In some embodiments, if the value of the second preset number of steps is 10 and the flipping angle of the second air deflector 240 is 16°, then the flipping angle of the second air deflector 240 for each operation of a preset number of steps is 8° / 5.

[0062] Please refer to Figures 9 to 15 , in some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, control the first air deflector 230 to flip a first preset angle, and after waiting for a preset time, control the second air deflector 240 to flip a second preset angle. The specific steps are as follows: start timing after controlling the first air deflector 230 to flip the first preset angle, determine whether the preset time has been reached, and if the preset time has been reached, control the second air deflector 240 to flip the second preset angle.

[0063] Please refer to Figures 9 to 15 , in some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, control the first air deflector 230 to flip a first preset number of steps, and after waiting for a preset time, control the second air deflector 240 to flip a second preset number of steps. The specific steps are as follows: start timing after controlling the first air deflector 230 to flip the first preset number of steps, determine whether the preset time has been reached, and if the preset time has been reached, control the second air deflector 240 to flip the second preset number of steps.

[0064] In some embodiments, the preset time is set by the user, set at the factory, or sent from the cloud.

[0065] In some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, the first air deflector 230 flips a first preset angle while the second air deflector 240 flips a second preset angle.

[0066] In some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, the first air deflector 230 flips a first preset number of steps while the second air deflector 240 flips a second preset number of steps.

[0067] In some embodiments, a baffle is provided at the second air inlet, and the baffle is used to close the second air inlet. A display screen is provided on the front panel of the housing 100, and the display screen is used to display information such as temperature or time. The controller is configured to also turn on the display screen when entering the fresh air mode.

[0068] In some embodiments, the wall-mounted air conditioner further includes an outdoor unit, a compressor, and an outdoor heat exchanger disposed within the outdoor unit. The compressor is configured to output refrigerant to the indoor heat exchanger and the outdoor heat exchanger to complete refrigeration or heating of the indoor heat exchanger, thereby realizing the heating mode or the cooling mode of the air conditioner. In the fresh air mode, the user only needs fresh outdoor air to be input into the room, and in this mode, the compressor is in a shutdown state, and at this time, there is no temperature change in the indoor heat exchanger. The controller is configured to, when entering the fresh air mode, control the drive motor 500 to drive the second fan 400 and the first fan 300 to rotate synchronously.

[0069] In some embodiments, entering the fresh air mode refers to the situation where the air conditioner enters the fresh air mode from the closed state. The controller is configured to, when entering the fresh air mode, turn on the drive motor 500, control the baffle to open the second air inlet, control the first air deflector 230 to flip by a first preset angle, and control the second air deflector 240 to flip by a second preset angle.

[0070] In some embodiments, when the first air deflector 230 completely closes the first air outlet 102, the flipping angle of the first air deflector 230 is 0°. When entering the fresh air mode, the first air deflector 230 starts to flip by the first preset angle from the state where it completely closes the first air outlet 102.

[0071] When the second air deflector 240 completely closes the first air outlet 102, the flipping angle of the second air deflector 240 is 0°. When entering the fresh air mode, the second air deflector 240 starts to flip by the second preset angle from the state where it completely closes the first air outlet 102.

[0072] After entering the fresh air mode, the flipping angle of the first air deflector 230 finally ranges from 5° to 8°, and this degree refers to the flipping angle of the first air deflector 230 from the state where it completely closes the first air outlet 102 until the first air deflector 230 finishes flipping.

[0073] After entering the fresh air mode, the flipping angle of the second air deflector 240 finally ranges from 10° to 16°, and this degree refers to the flipping angle of the second air deflector 240 from the state where it completely closes the first air outlet 102 until the second air deflector 240 finishes flipping.

[0074] In some embodiments, the controller is configured to, when exiting the fresh air mode, turn off the drive motor 500, control the second air deflector 240 and the first air deflector 230 to flip back to the initial position; control the baffle to close the second air inlet.

[0075] Please refer to Figures 9 to 13, in some embodiments, the wall-mounted air conditioner further includes an outdoor temperature sensor for detecting the outdoor temperature. In some embodiments, the controller is configured to, after entering the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value. When the outdoor temperature is greater than the preset temperature value, the driving motor 500 is turned on, the baffle is controlled to open the second air inlet, the first air deflector 230 is controlled to flip a first preset angle, and the second air deflector 240 is controlled to flip a second preset angle. This avoids introducing outdoor fresh air into the room when the temperature is too low, which may cause the indoor temperature to be too low and affect the user experience, reduces the significant impact of outdoor fresh air on the indoor temperature, and improves user comfort.

[0076] If the outdoor temperature is less than the preset temperature value, no operation is performed. After a preset interval, the outdoor temperature sensor is controlled again to detect the outdoor temperature.

[0077] In some embodiments, the preset temperature value and the preset interval are set by the user, set at the factory, or sent from the cloud.

[0078] In some embodiments, the preset temperature value is -15°C and the preset interval is 1 hour.

[0079] In some embodiments, the output shaft of the driving motor 500 is one, and both ends of the output shaft are coaxially connected to the first fan 300 and the second fan 400 respectively. When the driving motor 500 rotates, it drives the second fan 400 and the first fan 300 to rotate simultaneously through the output shaft.

[0080] In some embodiments, the output shaft of the driving motor 500 is two, and the two output shafts are the first output shaft and the second output shaft respectively. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the driving motor 500 operates, the first output shaft and the second output shaft rotate synchronously.

[0081] In some embodiments, the output shaft of the driving motor 500 is connected to the first fan 300, and a transmission component is provided on the first fan 300. The transmission component is connected to the second fan 400. The driving motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously through the transmission component, realizing that one driving motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time.

[0082] Please refer to Figures 1 to 8, in some embodiments, the output shaft of the driving motor 500 is connected to the second fan 400. A transmission assembly is provided on the second fan 400, and the transmission assembly is connected to the first fan 300. The driving motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously through the transmission assembly, realizing that one driving motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time.

[0083] In some embodiments, the output shaft of the driving motor 500 is connected to the second fan 400. A connecting shaft is provided at one end of the second fan 400 facing the first fan 300. The connecting shaft passes through the ventilation volute 700 and is connected to the first fan 300.

[0084] In some embodiments, the area of the first air deflector 230 is larger than that of the second air deflector 240. The length directions of the first air deflector 230 and the second air deflector 240 are both the same as the length direction of the housing 100, and the width of the first air deflector 230 is larger than the width of the second air deflector 240.

[0085] Please refer to Figures 1 to 8 , and Figure 16 , in addition, the present application also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a second fan 400, a ventilation volute 700, a first fan 300, a first air deflector 230, a first motor, a second air deflector 240, a second motor, a controller and a driving motor 500. Among them, a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; a first air inlet 101 is opened at the top of the housing 100, and a first air outlet 102 is opened at the front bottom of the housing 100.

[0086] The indoor heat exchanger is arranged in the first inner cavity. The indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange air flow; the second fan 400 is arranged in the first inner cavity, and the second fan 400 is arranged below the indoor heat exchanger; the indoor air flow enters the housing 100 through the first air inlet 101 under the action of the second fan 400, and is output to the indoor through the first air outlet 102 after being heat-exchanged by the indoor heat exchanger.

[0087] The ventilation volute 700 is arranged in the second inner cavity. A second air inlet and a second air outlet 720 are opened on the ventilation volute 700, and the second air outlet 720 is close to the first air inlet 101; the first fan 300 is arranged in the ventilation volute 700; the driving motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0088] The first air deflector 230 is arranged at the first air outlet 102; the first motor is arranged at the first air outlet 102, and the first motor is used to drive the first air deflector 230 to flip; the second air deflector 240 is arranged between the first air deflector 230 and the indoor heat exchanger, and the second air deflector 240 is arranged along the length direction of the first air outlet 102; the second motor is arranged at the first air outlet 102, and the second motor is used to drive the second air deflector 240 to flip.

[0089] The controller is configured to, when receiving a control signal to enter the fresh air mode, control the first motor to twist a third preset number of steps, and control the second motor to twist a fourth preset number of steps; the fourth preset number of steps is greater than the third preset number of steps; The air flow passing through the first air outlet 102 is guided by the second air deflector 240 to the first air deflector 230, and the first air deflector 230 guides the air flow to the top of the housing 100.

[0090] Through the above solution, by setting the number of twisting steps of the first motor and the second motor, the number of flipping steps of the second air deflector 240 is made greater than the number of flipping steps of the first air deflector 230. Therefore, the opening of the first air deflector 230 is smaller; the air flow output by the second fan 400 is guided by the second air deflector 240 and then output to the first air deflector 230. Under the action of the first air deflector 230, the air flow is led upward so that the air flow flows to the second air outlet 720 and is mixed with the fresh air. The air flow output by the second fan 400 can be output through the first air outlet 102, avoiding abnormal noises such as stuffy sound, thumping sound, and whistling sound caused by the air flow being unable to be output inside the first inner cavity of the housing 100, and the air flow output through the first air outlet 102 is guided upward, avoiding the air flow directly blowing on the user and improving the user experience.

[0091] In some embodiments, the value of the fourth preset number of steps is twice the value of the third preset number of steps. Through this design, it is ensured that the second air deflector 240 can guide the air flow passing through the second fan 400 to the first air deflector 230; and it is ensured that the first air deflector 230 can guide the air flow passing through the second fan 400 above the housing 100 and mix it with the fresh air at the second air outlet 720 In some embodiments, the value of the third preset number of steps is 3 to 5; the value of the fourth preset number of steps is 6 to 10. Through this preset number of steps, the second air deflector 240 can guide the air flow passing through the second fan 400 to the first air deflector 230; and it is ensured that the first air deflector 230 can guide the air flow passing through the second fan 400 above the housing 100 and mix it with the fresh air at the second air outlet 720; and the air flow passing through the second fan 400 can smoothly pass through the second air deflector 240 and the first air deflector 230 and be output from the first air outlet 102, avoiding abnormal noises such as stuffy sound, thumping sound, and whistling sound caused by the air flow passing through the second fan 400 being unable to be output in the first inner cavity.

[0092] In some embodiments, the controller is configured such that, when entering the fresh air mode, the first motor drives the first air guide plate 230 to flip at an angle of 5° to 8°. At this angle, the first air guide plate 230 is guaranteed to open part of the first air outlet 102, and the opened part of the first air outlet 102 is sufficient for the airflow output through the second fan 400, thereby preventing the airflow through the second fan 400 from being unable to be output in the first inner cavity, resulting in abnormal noises such as muffled sound, thumping sound, and whistling sound.

[0093] In some embodiments, the controller is configured such that, when entering the fresh air mode, the second motor drives the second air guide plate 240 to flip at an angle of 10° to 16°. At this angle, the second air guide plate 240 guides the airflow passing through the second fan 400 to the first air guide plate 230, ensuring that the airflow is guided by the first air guide plate 230 so that a sufficient amount of airflow can be guided to the top of the housing 100 to mix with the fresh air.

[0094] In some embodiments, the third preset number of steps is the same as the first preset number of steps described above, and the fourth preset number of steps is the same as the fourth preset number of steps described above.

[0095] In some embodiments, when the first air guide plate 230 flips, the flip angle of each first preset step is the flip angle of the first air guide plate 230 divided by the value of the first preset step.

[0096] In some embodiments, the value of the third preset step number is 3, and the flip angle of the first air guide plate 230 is 5°. Then, the flip angle of the first air guide plate 230 is 5° / 3 each time a preset step number is run.

[0097] In some embodiments, the value of the third preset step number is 5, and the flip angle of the first air guide plate 230 is 8°. Then, the flip angle of the first air guide plate 230 is 8° / 5 each time a preset step number is run.

[0098] In some embodiments, when the second air guide plate 240 flips, the flip angle of each fourth preset step is the flip angle of the second air guide plate 240 divided by the value of the fourth preset step.

[0099] In some embodiments, the value of the fourth preset step is 6, and the flip angle of the second air guide plate 240 is 10°. Then, the flip angle of the second air guide plate 240 is 5° / 3 each time a preset step is run.

[0100] In some embodiments, the value of the fourth preset step is 10, and the flip angle of the second air guide plate 240 is 16°. Then, the flip angle of the second air guide plate 240 is 8° / 5 each time a preset step is run.

[0101] In some embodiments, the controller is configured to, when entering the fresh air mode, control the first motor to twist a third preset number of steps, and after a preset time, control the second motor to twist a fourth preset number of steps.

[0102] In some embodiments, when the first motor is in the initial state, the first air outlet 102 is closed by the first air deflector 230.

[0103] In some embodiments, it further includes an outdoor temperature sensor for detecting the outdoor temperature; The controller is configured to, when receiving a control signal to enter the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value, and when the outdoor temperature is greater than the preset temperature value, turn on the drive motor 500, control the baffle to open the second air inlet, control the first motor to twist a third preset number of steps from the initial state, and control the second motor to twist a fourth preset number of steps from the initial state.

[0104] As shown in the attached Figures 17 to 32 In a schematic embodiment of the wall-mounted air conditioner of the present invention, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a second fan 400, a ventilation volute 700, a first fan 300, a first air deflector 230, a second air deflector 240, a controller, and a drive motor 500. Among them, a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; a first air inlet 101 is opened at the top of the housing 100, and a first air outlet 102 is opened at the bottom of the front side of the housing 100.

[0105] The indoor heat exchanger is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through it to form a heat exchange air flow; the second fan 400 is arranged in the first inner cavity and is located below the indoor heat exchanger; the indoor air flow enters the housing 100 through the first air inlet 101 under the action of the second fan 400, and is output to the indoor through the first air outlet 102 after being heat-exchanged by the indoor heat exchanger.

[0106] The ventilation volute 700 is arranged in the second inner cavity, and a second air inlet and a second air outlet 720 are opened on the ventilation volute 700; the first fan 300 is arranged in the ventilation volute 700; the drive motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; the second air outlet 720 is close to the first air inlet 101.

[0107] The first air deflector 230 is arranged at the first air outlet 102 and is arranged along the length direction of the first air outlet 102; The second air deflector 240 is arranged between the first air deflector 230 and the indoor heat exchanger and is arranged along the length direction of the first air outlet 102; The controller is configured to, when receiving a control signal to enter the fresh air mode, control the first air guide plate 230 to flip from an initial position to a first preset angle, and control the second air guide plate 240 to flip from an initial position to a second preset angle; the first preset angle is greater than the second preset angle; Part of the air-conditioning wind output through the first air outlet 102 is guided to the top of the shell 100 by the second air guide plate 240 ; the remaining air-conditioning wind blows toward the first air guide plate 230 and is guided to the front of the shell 100 by the first air guide plate 230 .

[0108] In the prior art, the driving motor drives the second fan and the first fan to rotate synchronously at the same time. Therefore, when the driving motor drives the first fan to rotate, the second fan also rotates accordingly. If the air guide plate of the air conditioner remains closed, the air duct of the air conditioner will produce abnormal noises such as muffled sound, thumping sound, and whistling sound. If the first air guide plate and the second air guide plate are opened to the maximum angle, the air flow of the air conditioner will blow directly to the user, causing discomfort to the user.

[0109] In the present application, the flip angle of the first air guide plate 230 is greater than the flip angle of the second air guide plate 240 through the above solution; therefore, part of the air-conditioning wind output after heat exchange in the indoor heat exchanger is output to the second air guide plate 240 and is guided by the second air guide plate 240 to be directly output from the first air outlet 102; the remaining air-conditioning wind is output to the first air guide plate 230 through the gap between the second air guide plate 240 and the first air outlet 102 and is guided by the first air guide plate 230 before being output. The air-conditioning wind can be smoothly output through the first air outlet 102, and the second air guide plate 240 blocks part of the air-conditioning wind to reduce the impact of the airflow on the first air guide plate 230, thereby reducing the vibration of the first air guide plate 230, avoiding the first air guide plate 230 from colliding with the housing 100 to generate noise, and improving the user experience.

[0110] In some embodiments, the control signal is sent by the user through a remote control or mobile phone software, or through the cloud.

[0111] In some embodiments, the wall-mounted air conditioner also includes an outdoor unit and a compressor and an outdoor heat exchanger arranged in the outdoor unit. The compressor is used to output the refrigerant to the indoor heat exchanger and the outdoor heat exchanger, complete the cooling or heating of the indoor heat exchanger, and realize the heating mode or cooling mode of the air conditioner. In the fresh air mode, the user only needs to input outdoor fresh air into the room. In this mode, the compressor is in a stopped state, and there is no temperature change in the indoor heat exchanger. The controller is configured to control the drive motor 500 to drive the second fan 400 and the first fan 300 to rotate synchronously when entering the fresh air mode.

[0112] Please refer to Figures 25 to 31, in some embodiments, the controller is configured such that when fresh air enters, the flipping angle of the first air deflector 230 is 40° to 48°; that is, the first air deflector 230 is controlled to flip 24 to 28 steps so that the flipping angle of the first air deflector 230 is 40° to 48°. At this angle, the impact of the air conditioner air on the second air deflector 240 is reduced, and the first air deflector 230 guides the air flow to the front of the housing 100. While ensuring a reduction in the vibration of the first air deflector 230, the air flow is prevented from directly blowing on the user below the housing 100, improving user comfort.

[0113] The controller is configured such that when receiving a control signal to enter the fresh air mode, the flipping angle of the second air deflector 240 is 10° to 16°; that is, the second air deflector 240 is controlled to flip 6 to 10 steps; so that the flipping angle of the second air deflector 240 is 10° to 16°. At this angle, the second air deflector 240 guides the air flow passing through the second fan 400 to the first air deflector 230, ensuring that the air flow is guided by the first air deflector 230 to blow towards the front of the housing 100, preventing the air flow from directly blowing on the user, and improving user comfort.

[0114] Please refer to Figures 25 to 31 , in some embodiments, the controller is configured such that when entering the fresh air mode, the first air deflector 230 is controlled to flip a first preset number of steps, and the second air deflector 240 is controlled to flip a second preset number of steps; the first preset number of steps is greater than the second preset number of steps.

[0115] In some embodiments, the value of the first preset number of steps is 24 to 28; the value of the second preset number of steps is 6 to 10. That is, the controller is configured such that when receiving a control signal to enter the fresh air mode, the first air deflector 230 is controlled to flip 24 to 28 steps so that the first air deflector 230 flips a first preset angle, and the second air deflector 240 is controlled to flip 6 to 10 steps so that the second air deflector 240 flips a second preset angle. Through this preset number of steps, the impact of the air conditioner air on the second air deflector 240 is reduced, and the first air deflector 230 guides the air flow to the front of the housing 100. While ensuring a reduction in the vibration of the first air deflector 230, the air flow is prevented from directly blowing on the user below the housing 100, improving user comfort.

[0116] In some embodiments, when the first air deflector 230 flips, the angle flipped for each first preset number of steps is the value of the first preset angle divided by the first preset number of steps.

[0117] In some embodiments, if the value of the first preset number of steps is 24 and the first preset angle is 40°, then the flipping angle of the first air deflector 230 for each operation of a preset number of steps is 5° / 3.

[0118] In some embodiments, the value of the first preset number of steps is 28, and the first preset angle is 48°. Then, when each preset number of steps is run, the flipping angle of the first air deflector 230 is 12° / 7.

[0119] In some embodiments, when the second air deflector 240 flips, the angle flipped for each second preset number of steps is the second preset angle divided by the value of the second preset number of steps.

[0120] In some embodiments, the value of the second preset number of steps is 6, and the second preset angle is 10°. Then, when each preset number of steps is run, the flipping angle of the second air deflector 240 is 5° / 3.

[0121] In some embodiments, the value of the second preset number of steps is 10, and the second preset angle is 16°. Then, when each preset number of steps is run, the flipping angle of the second air deflector 240 is 8° / 5.

[0122] Please refer to Figures 25 to 31 , in some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, control the first air deflector 230 to flip by the first preset angle, and after a preset time, then control the second air deflector 240 to flip by the second preset angle. The specific steps are as follows: start timing after controlling the first air deflector 230 to flip by the first preset angle, determine whether the preset time is reached, and if the preset time is reached, then control the second air deflector 240 to flip by the second preset angle. Make the flipping of the first air deflector 230 and the second air deflector 240 have a sequential timing, so that when the air flow is output, it is first guided by the first air deflector 230 and then output to the second air deflector 240. Avoid the situation where the air flow directly blows to the second air deflector 240 without being guided by the first air deflector 230, resulting in an excessive instantaneous blowing force on the second air deflector 240 and causing abnormal noise due to collision with the housing 100.

[0123] In some embodiments, the preset time is set by the user, factory settings, or sent from the cloud.

[0124] In some embodiments, the controller is configured to, when receiving a control signal to enter the fresh air mode, the first air deflector 230 flips by the first preset angle while the second air deflector 240 flips by the second preset angle.

[0125] In some embodiments, a baffle is provided at the second air inlet, and the baffle is used to close the second air inlet. A display screen is provided on the front panel of the housing 100, and the display screen is used to display information such as temperature or time. The controller is configured to, when entering the fresh air mode, also turn on the display screen.

[0126] In some embodiments, entering the fresh air mode refers to the situation where the air conditioner enters the fresh air mode from the off state. The controller is configured to, when entering the fresh air mode, turn on the drive motor 500, control the baffle to open the second air inlet, control the first air deflector 230 to flip by a first preset angle, and control the second air deflector 240 to flip by a second preset angle.

[0127] In some embodiments, when the first air deflector 230 is in the initial position, the first air deflector 230 completely closes the first air outlet 102, and the flipping angle of the first air deflector 230 is 0°. When entering the fresh air mode, the first air deflector 230 starts to flip by the first preset angle from the position where it completely closes the first air outlet 102 to open the first air outlet 102.

[0128] When the second air deflector 240 is in the initial position, the flipping angle of the second air deflector 240 is 0°. When entering the fresh air mode, the second air deflector 240 starts to flip by the second preset angle from the initial position.

[0129] After entering the fresh air mode, the flipping angle of the first air deflector 230 finally stays at 40° - 48°. This degree refers to the flipping angle of the first air deflector 230 from the position where it completely closes the first air outlet 102 until the first air deflector 230 finishes flipping.

[0130] After entering the fresh air mode, the flipping angle of the second air deflector 240 finally stays at 10° - 16°. This degree refers to the flipping angle of the second air deflector 240 from the position where it completely closes the first air outlet 102 until the second air deflector 240 finishes flipping.

[0131] In some embodiments, the controller is configured to, when exiting the fresh air mode, turn off the drive motor 500, control the second air deflector 240 and the first air deflector 230 to flip back to the initial position; control the baffle to close the second air inlet.

[0132] Please refer to Figures 25 to 31 , in some embodiments, the wall-mounted air conditioner further includes an outdoor temperature sensor for detecting the outdoor temperature. In some embodiments, the controller is configured to, after entering the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value. When the outdoor temperature is greater than the preset temperature value, turn on the drive motor 500, control the baffle to open the second air inlet, control the first air deflector 230 to flip by the first preset angle, and control the second air deflector 240 to flip by the second preset angle. This can prevent the outdoor fresh air from being introduced into the room when the temperature is too low, resulting in too low indoor temperature and affecting the user experience, reducing the significant impact of outdoor fresh air on the indoor temperature, and improving user comfort.

[0133] If the outdoor temperature is less than the preset temperature value, no operation is performed. After a preset interval, the outdoor temperature sensor is controlled to detect the outdoor temperature again.

[0134] In some embodiments, the preset temperature value and the preset interval time are set by the user, set at the factory, or sent from the cloud.

[0135] In some embodiments, the preset temperature value is -15°C and the preset interval time is 1 hour.

[0136] In some embodiments, the output shaft of the driving motor 500 is one, and both ends of the output shaft are coaxially connected to the first fan 300 and the second fan 400 respectively. When the driving motor 500 rotates, it drives the second fan 400 and the first fan 300 to rotate simultaneously through the output shaft.

[0137] In some embodiments, the output shaft of the driving motor 500 is two, and the two output shafts are the first output shaft and the second output shaft respectively. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the driving motor 500 operates, the first output shaft and the second output shaft rotate synchronously.

[0138] In some embodiments, the output shaft of the driving motor 500 is connected to the first fan 300, and a transmission component is arranged on the first fan 300. The transmission component is connected to the second fan 400. The driving motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously through the transmission component, realizing that one driving motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time.

[0139] Please refer to Figures 17 to 24 , in some embodiments, the output shaft of the driving motor 500 is connected to the second fan 400, and a transmission component is arranged on the second fan 400. The transmission component is connected to the first fan 300. The driving motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously through the transmission component, realizing that one driving motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time.

[0140] In some embodiments, the output shaft of the driving motor 500 is connected to the second fan 400, and a connecting shaft is arranged at one end of the second fan 400 facing the first fan 300. The connecting shaft passes through the ventilation volute 700 and is connected to the first fan 300.

[0141] In some embodiments, the area of the first air deflector 230 is larger than the area of the second air deflector 240. The length directions of the first air deflector 230 and the second air deflector 240 are the same as the length direction of the housing 100, and the width of the first air deflector 230 is larger than the width of the second air deflector 240.

[0142] Please refer to Figures 17 to 24 , and Figure 32, In addition, the present application also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a second fan 400, a ventilation volute 700, a first fan 300, a first air deflector 230, a first motor, a second air deflector 240, a second motor, a controller, and a driving motor 500. Among them, a first inner cavity and a second inner cavity are arranged inside the housing 100 along the length direction; a first air inlet 101 is opened at the top of the housing 100, and a first air outlet 102 is opened at the bottom of the front side of the housing 100.

[0143] The indoor heat exchanger is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange air flow; the second fan 400 is arranged in the first inner cavity, and the second fan 400 is arranged below the indoor heat exchanger; the indoor air flow enters the housing 100 through the first air inlet 101 under the action of the second fan 400, and is output to the indoor through the first air outlet 102 after being heat-exchanged by the indoor heat exchanger.

[0144] The ventilation volute 700 is arranged in the second inner cavity, a second air inlet and a second air outlet 720 are opened on the ventilation volute 700, and the second air outlet 720 is close to the first air inlet 101; the first fan 300 is arranged in the ventilation volute 700; the driving motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0145] The first air deflector 230 is arranged at the first air outlet 102; the first motor is arranged at the first air outlet 102, and the first motor is used to drive the first air deflector 230 to flip; the second air deflector 240 is arranged between the first air deflector 230 and the first air outlet 102; the second motor is arranged at the first air outlet 102, and the second motor is used to drive the second air deflector 240 to flip.

[0146] The controller is configured to, when entering the fresh air mode, control the first motor to twist a third preset number of steps, and control the second motor to twist a fourth preset number of steps; the third preset number of steps is greater than the fourth preset number of steps.

[0147] Through the above solution, by setting the number of twisting steps of the first motor and the second motor, the number of flipping steps of the first air deflector 230 is made greater than the number of flipping steps of the second air deflector 240. Therefore, the opening of the first air deflector 230 is larger; the first air deflector 230 and the second air deflector 240 have less blockage to the first air outlet 102. Therefore, the air flow output after being heat-exchanged by the indoor heat exchanger can smoothly pass through the first air outlet 102. Therefore, the impact pressure of the air flow on the first air deflector 230 and the second air deflector 240 is reduced, the vibration of the first air deflector 230 and the second air deflector 240 is avoided, and thus the collision between the first air deflector 230 and the second air deflector 240 and the housing 100 is avoided, and noise is avoided, improving the user experience.

[0148] In some embodiments, the value of the third preset number of steps is 24 to 28; the value of the fourth preset number of steps is 6 to 10. Through these preset numbers of steps, the impact of the air-conditioning wind on the second air deflector 240 is reduced, and the first air deflector 230 directs the air flow to the front of the housing 100. While ensuring a reduction in the vibration of the first air deflector 230, it avoids the air flow directly blowing towards the user below the housing 100, improving user comfort.

[0149] In some embodiments, the controller is configured such that when entering the fresh air mode, the first motor drives the first air deflector 230 to flip at an angle of 40° to 48°. Through this angle, the impact of the air-conditioning wind on the second air deflector 240 is reduced, and the first air deflector 230 directs the air flow to the front of the housing 100. While ensuring a reduction in the vibration of the first air deflector 230, it avoids the air flow directly blowing towards the user below the housing 100, improving user comfort.

[0150] In some embodiments, the controller is configured such that when receiving a control signal to enter the fresh air mode, the second motor drives the second air deflector 240 to flip at an angle of 10° to 16°. At this angle, the second air deflector 240 directs the air flow passing through the second fan 400 to the first air deflector 230, ensuring that the air flow is directed by the first air deflector 230 to blow towards the front of the housing 100, avoiding the air flow directly blowing towards the user, and improving user comfort.

[0151] In some embodiments, the third preset number of steps is the same as the first preset number of steps above, and the fourth preset number of steps is the same as the second preset number of steps above.

[0152] In some embodiments, the controller is configured such that when receiving a control signal to enter the fresh air mode, it controls the first motor to twist the third preset number of steps. After a preset time, it then controls the second motor to twist the fourth preset number of steps. The specific steps are as follows: start timing after controlling the first motor to twist the third preset number of steps, and determine whether the preset time has been reached. If the preset time is reached, then control the second motor to twist the fourth preset number of steps.

[0153] As shown in the Figures 33 to 48 accompanying drawings, in a schematic embodiment of the wall-mounted air conditioner of the present invention, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a second fan 400, a ventilation volute 700, a baffle 250, a first fan 300, a controller, and a driving motor 500. A first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; a first air inlet 101 is opened at the top of the housing 100, and a first air outlet 102 is opened at the front bottom of the housing 100.

[0154] The indoor heat exchanger is disposed within the first inner cavity. The indoor heat exchanger exchanges heat with the air passing through it to form a heat-exchanged air flow. The second fan 400 is disposed within the first inner cavity and is arranged below the indoor heat exchanger. The indoor air flow enters the housing 100 through the first air inlet 101 under the action of the second fan 400, and is heat-exchanged by the indoor heat exchanger and then output to the indoor through the first air outlet 102.

[0155] The ventilation volute 700 is disposed within the second inner cavity. The ventilation volute 700 is provided with a second air inlet and a second air outlet 720. The baffle 250 is disposed at the second air inlet, and the baffle 250 is used to open or close the second air inlet. The first fan 300 is disposed within the ventilation volute 700. There is a driving motor 500, and the driving motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0156] The controller is configured such that when receiving a control signal to exit the fresh air mode, it controls the driving motor 500 to decelerate and stop rotating. After waiting for the driving motor 500 to completely stop rotating, it controls the baffle 250 to close the second air inlet.

[0157] In the prior art, a driving motor 500 drives the second fan 400 and the first fan 300 to rotate simultaneously. When the fresh air function is turned off, the baffle 250 closes the second air inlet, but the first fan 300 still rotates. The air flow within the ventilation volute 700 can only be output from the second air outlet 720, but cannot be input from the second air inlet, resulting in a lower air pressure within the ventilation volute 700, causing the air flow within the ventilation volute 700 to become blocked and generate noise, affecting the user experience.

[0158] However, with the above solution in the present application, when receiving a control signal to exit the fresh air mode, it ensures that the driving motor 500 completely stops rotating before closing the second air inlet, so as to ensure that the first fan 300 does not drive the air flow to flow within the ventilation volute 700 before the second air inlet is closed, ensuring the pressure balance inside and outside the ventilation volute 700, and avoiding the occurrence of a blocked sound due to the inability of the air flow to circulate within the ventilation volute 700.

[0159] Please refer to Figure 44 and Figure 48 , in some embodiments, the controller is configured such that when exiting the fresh air mode, it controls the driving motor 500 to decelerate and stop rotating, determines whether the driving motor 500 has completely stopped rotating. If so, it controls the baffle 250 to close the second air inlet; if not, it re-determines or waits for a period of time and then re-determines. In this way, it is ensured that the baffle 250 will close the second air inlet only after the driving motor 500 has completely stopped rotating.

[0160] In some embodiments, the issuance of the control signal includes but is not limited to being issued by a remote controller, program control, or cloud issuance.

[0161] In some embodiments, the wall-mounted air conditioner further includes an outdoor unit, a compressor, and an outdoor heat exchanger disposed within the outdoor unit. The compressor is configured to output refrigerant to the indoor heat exchanger and the outdoor heat exchanger to complete refrigeration or heating of the indoor heat exchanger, thereby implementing the heating mode or the cooling mode of the air conditioner. In the fresh air mode, the user only needs fresh outdoor air to be input into the room. In the fresh air mode, the compressor is in a shutdown state, and at this time, there is no temperature change in the indoor heat exchanger. The controller is configured to, when entering the fresh air mode, control the drive motor 500 to drive the second fan 400 and the first fan 300 to rotate synchronously.

[0162] Please refer to Figures 43 to 44 and Figure 48 , in some embodiments, a third motor is provided on the ventilation volute 700. The third motor is configured to drive the baffle 250 to open or close the second air inlet; the controller is configured to, when receiving a control signal to exit the fresh air mode, control the drive motor 500 to decelerate and stop rotating. After waiting for the drive motor 500 to completely stop rotating, control the third motor to rotate so that the baffle 250 closes the second air inlet. When exiting the fresh air mode, ensure that the drive motor 500 completely stops rotating before closing the second air inlet to ensure that the first fan 300 does not drive the air flow to flow within the ventilation volute 700 before the second air inlet is closed, and to ensure the pressure balance inside and outside the ventilation volute 700, so as to avoid the occurrence of a stuffy blockage sound caused by the inability of the air flow to circulate within the ventilation volute 700.

[0163] In some embodiments, when exiting the fresh air mode, control the drive motor 500 to decelerate and stop rotating, and determine whether the drive motor 500 has completely stopped rotating. If so, control the third motor to rotate so that the baffle 250 closes the second air inlet; if not, re-determine or re-determine after waiting for a period of time.

[0164] Please refer to Figures 38 to 40 , in some embodiments, the baffle 250 slides at the second air inlet of the ventilation volute 700. A rack is provided on the baffle 250, and the output shaft of the third motor is coaxially connected with a gear 260. The gear 260 meshes with the rack. When the output shaft of the third motor rotates, it drives the gear 260 to rotate. The gear 260 meshes with the rack to drive the baffle 250 to slide, so as to open or close the second air inlet.

[0165] Please refer to Figure 45 and Figure 46, in some embodiments, the controller is configured to, when entering the fresh air mode, control the third motor to rotate so as to open the second air inlet by the baffle 250. After waiting for the baffle 250 to open the second air inlet, the drive motor 500 is started. When entering the fresh air mode, ensure that the second air inlet is opened before driving the first fan 300 to rotate by the drive motor 500, so as to ensure that the air flow can smoothly enter the ventilation volute 700 through the second air inlet and be output through the second air outlet 720, ensure the pressure balance inside and outside the ventilation volute 700, avoid air flow blockage, and avoid generating noise.

[0166] Please refer to Figure 33 、 Figure 36 and Figure 37 , in some embodiments, a first air deflector 230 and a second air deflector 240 are provided at the first air outlet 102; the second air deflector 240 is disposed between the first air deflector 230 and the first air outlet 102. The first air deflector 230 and the second air deflector 240 are used to adjust the direction of the air-conditioning air output through the first air outlet 102.

[0167] In some embodiments, a first motor and a second motor are further provided at the first air outlet 102. The first motor is used to drive the first air deflector 230 to flip, and the second motor is used to drive the second air deflector 240 to flip.

[0168] Please refer to Figure 45 and Figure 46 , in some embodiments, the controller is configured to, when entering the fresh air mode, control the first air deflector 230 to flip to a first preset position and then control the second air deflector 240 to flip to a second preset position. When entering the fresh air mode, ensure that the first air outlet 102 can be opened in the first time, and when the second fan 400 rotates, the air flow can smoothly enter from the first air inlet 101 and be output from the first air outlet 102, ensuring the smooth flow of the air flow.

[0169] In some embodiments, the controller is configured to, when entering the fresh air mode, control the baffle 250 to open the second air inlet. After waiting for the baffle 250 to open the second air inlet, the drive motor 500 is started. Ensure that the first fan 300 starts to rotate only after the second air inlet is opened, so as to ensure that the air flow can smoothly enter from the second air inlet and be output from the second air outlet 720, avoid air flow blockage of the fresh air flow, and avoid generating noise.

[0170] In some embodiments, when entering the fresh air mode, the first air deflector 230 flips to the first preset position and the baffle 250 is controlled to open the second air inlet; it is judged whether the first air deflector 230 flips to the first preset position; if so, while starting the drive motor 500, the second air deflector 240 is controlled to flip to the second preset position; if not, re-judge or re-judge after waiting for a period of time.

[0171] In some embodiments, the wall-mounted air conditioner further includes an outdoor temperature sensor for detecting the outdoor temperature. In some embodiments, the controller is configured to, after entering the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value, and when the outdoor temperature is greater than the preset temperature value, turn on the drive motor 500. This can prevent the introduction of outdoor fresh air into the room when the temperature is too low, which may cause the indoor temperature to be too low and affect the user's physical sensation, reduce the significant impact of outdoor fresh air on the indoor temperature, and improve user comfort.

[0172] If the outdoor temperature is less than the preset temperature value, no operation is performed. After a preset interval, the outdoor temperature sensor is re-controlled to detect the outdoor temperature.

[0173] In some embodiments, the preset temperature value and the preset interval are set by the user, factory settings, or sent from the cloud.

[0174] In some embodiments, the preset temperature value is -15°C and the preset interval is 1 hour.

[0175] In some embodiments, a display screen is provided on the front panel of the housing 100 for displaying information such as temperature or time. The controller is configured to turn on the display screen after entering the fresh air mode. When exiting the fresh air mode, the display screen is turned off.

[0176] In some embodiments, the controller is configured to, after entering the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than the preset temperature value, and when the outdoor temperature is greater than the preset temperature value, control the third motor to rotate to open the second air inlet of the baffle 250, and at the same time control the first motor to drive the first air deflector 230 to flip to the first preset position; After waiting for the first air deflector 230 to flip to the first preset position, start the coaxial motor and at the same time control the second motor to drive the second air deflector 240 to flip to the second preset position.

[0177] Among them, the first preset position and the second preset position are set by the user, factory settings, or sent from the cloud. Since a drive motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously, the blades of the second fan 400 will rotate after entering the fresh air mode. The above solution ensures that the first air deflector 230 opens the first air outlet 102 and the second air inlet is opened before starting the coaxial motor, so that the air conditioner air can smoothly pass through the first air outlet 102 and the outdoor fresh air can smoothly pass through the second air inlet, avoiding air flow blockage.

[0178] In some embodiments, the controller is configured to exit the fresh air mode when receiving a signal to exit the fresh air mode or when determining that the outdoor temperature is less than the preset temperature value.

[0179] In some embodiments, the signal for exiting the fresh air mode can be preset by the user, issued by the user, or sent from the cloud.

[0180] Please refer to Figure 47 and Figure 48 , in some embodiments, the controller is configured to, when exiting the fresh air mode, control the driving motor 500 to decelerate and stop rotating, and at the same time control the second air deflector 240 to flip to the initial position. After waiting for the driving motor 500 to completely stop rotating, control the third motor to rotate so that the baffle 250 closes the second air inlet; after waiting for the second air deflector 240 to flip to the initial position, control the first air deflector 230 to flip to close the first air outlet 102. The first fan 300 and the second fan 400 rotate synchronously, so air will also be discharged from the first air outlet 102. When exiting the fresh air mode, first flip the second air deflector 240 to the initial position, and then close the first air outlet 102 with the first air deflector 230. This avoids the first air outlet 102 being closed before the second fan 400 has completely stopped rotating, and also avoids noise caused by the inability to output the air flow inside the housing 100.

[0181] In some embodiments, the controller is configured to, when receiving a control signal to exit the fresh air mode, control the driving motor 500 to decelerate and stop rotating, and at the same time control the second air deflector 240 to flip to the initial position; determine whether the driving motor 500 has completely stopped rotating. If so, control the third motor to rotate so that the baffle 250 closes the second air inlet; if not, re-determine or re-determine after waiting for a period of time.

[0182] Determine whether the second air deflector 240 has flipped to the initial position. If so, control the first air deflector 230 to flip to close the first air outlet 102; if not, re-determine or re-determine after waiting for a period of time.

[0183] In some embodiments, the angle of the initial position of the second air deflector 240 is preset at the factory.

[0184] In some embodiments, the first preset position of the first air deflector 230 and the second preset position of the second air deflector 240 are set at the factory or sent from the cloud. When the first air deflector 230 is in the first preset position, the air flow output from the first air outlet 102 can be smoothly output without causing congestion inside the housing 100.

[0185] In some embodiments, the output shaft of the driving motor 500 is one, and both ends of the output shaft are coaxially connected to the first fan 300 and the second fan 400 respectively. When the driving motor 500 rotates, it drives the second fan 400 and the first fan 300 to rotate simultaneously through the output shaft.

[0186] In some embodiments, the output shaft of the drive motor 500 has two shafts, namely a first output shaft and a second output shaft. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the drive motor 500 operates, the first output shaft and the second output shaft rotate synchronously.

[0187] In some embodiments, the output shaft of the drive motor 500 is connected to the first fan 300. A transmission assembly is provided on the first fan 300 and is connected to the second fan 400. The drive motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously through the transmission assembly, so that one drive motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time.

[0188] In some embodiments, the output shaft of the drive motor 500 is connected to the second fan 400. A transmission assembly is provided on the second fan 400 and is connected to the first fan 300. The drive motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously through the transmission assembly, so that one drive motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time.

[0189] In some embodiments, the output shaft of the drive motor 500 is connected to the second fan 400. A connecting shaft is provided at one end of the second fan 400 facing the first fan 300. The connecting shaft passes through the ventilation volute 700 and is connected to the first fan 300.

[0190] In some embodiments, the area of the first air deflector 230 is larger than that of the second air deflector 240. The length directions of the first air deflector 230 and the second air deflector 240 are the same as the length direction of the housing 100, and the width of the first air deflector 230 is greater than the width of the second air deflector 240.

[0191] In some embodiments, the ventilation volute 700 includes a first split housing 730 and a second split housing 740. A first fresh air chamber is formed between the first split housing 730 and the second split housing 740; the first fan 300 is disposed in the first fresh air chamber, and the second air outlet 720 is communicated with the first fresh air chamber. When the drive motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air to the room through the second air outlet 720.

[0192] In some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. A second fresh air chamber is formed between the second half housing 742 and the first half housing 741 and is in communication with the first fresh air chamber; the second air inlet is in communication with the second fresh air chamber. When the driving motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second fresh air chamber through the second air inlet, then enters the first fresh air chamber, and is output to the room through the second air outlet 720 under the action of the first fan 300.

[0193] In addition, the present application also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a second fan 400, a ventilation volute 700, a baffle 250, a first fan 300, a controller, and a driving motor 500. Among them, a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; a first air inlet 101 is opened at the top of the housing 100, and a first air outlet 102 is opened at the bottom of the front side of the housing 100.

[0194] The indoor heat exchanger is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange air flow; the second fan 400 is arranged in the first inner cavity and is arranged below the indoor heat exchanger; the indoor air flow enters the housing 100 through the first air inlet 101 under the action of the second fan 400, and is output to the room through the first air outlet 102 after being heat-exchanged by the indoor heat exchanger.

[0195] The ventilation volute 700 is arranged in the second inner cavity, and a second air inlet and a second air outlet 720 are opened on the ventilation volute 700; the baffle 250 is arranged at the second air inlet, and the baffle 250 is used to open or close the second air inlet; the first fan 300 is arranged in the ventilation volute 700; the driving motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; the second air outlet 720 is close to the first air inlet 101.

[0196] The controller is configured to, when receiving a control signal to exit the fresh air mode, control the driving motor 500 to decelerate and stop rotating, and when the rotation speed of the driving motor 500 is lower than a preset rotation speed, control the baffle 250 to close the second air inlet.

[0197] Through the above solution, when exiting the fresh air mode, it is ensured that the first fan 300 is reduced to a certain speed before the second air inlet is closed, ensuring that the fresh air flow in the ventilation volute 700 is small enough when the second air inlet is closed, so as to avoid the occurrence of a stuffy blockage sound due to the inability of the air flow to circulate in the ventilation volute 700.

[0198] In some embodiments, a third motor is provided on the ventilation volute 700, and the third motor is used to drive the baffle 250 to open or close the second air inlet; the controller is configured to, when exiting the fresh air mode, control the driving motor 500 to decelerate and stop, and when the rotational speed of the driving motor 500 is lower than a preset rotational speed, control the third motor to rotate so that the baffle 250 closes the second air inlet. When exiting the fresh air mode, it is ensured that the first fan 300 is reduced to a certain speed before the second air inlet is closed, so that the fresh air flow in the ventilation volute 700 is small enough when the second air inlet is closed, thereby avoiding the occurrence of a stuffy blockage sound caused by the inability of the air flow to circulate in the ventilation volute 700.

[0199] In some embodiments, a first air deflector 230 and a second air deflector 240 are provided at the first air outlet 102; the second air deflector 240 is disposed between the first air deflector 230 and the first air outlet 102; the controller is configured to, when exiting the fresh air mode, control the driving motor 500 to decelerate and stop and at the same time control the second air deflector 240 to flip to the initial position, and when the driving motor 500 completely stops, control the third motor to rotate so that the baffle 250 closes the second air inlet; when the rotational speed of the driving motor 500 is lower than the preset rotational speed, control the first air deflector 230 to flip to close the first air outlet 102. The first fan 300 and the second fan 400 rotate synchronously, so the first air outlet 102 also discharges air. When exiting the fresh air mode, first make the second air deflector 240 flip to the initial position, and then make the first air deflector 230 close the first air outlet 102. This avoids the first air outlet 102 being closed before the second fan 400 completely stops, and avoids the noise caused by the inability of the air flow in the housing 100 to be output.

[0200] In some embodiments, the preset rotational speed is preset by the user, issued by the user, or sent from the cloud. At this preset speed, the fresh air flow driven by the first fan 300 will not generate a stuffy blockage noise in the ventilation volute 700 where the second air inlet is closed.

[0201] Figures 49 - 77 This is a specific implementation manner of the air conditioner indoor unit of the present invention. In this embodiment, the air conditioner indoor unit includes a housing 1, a heat exchanger, a fresh air module, a second fan 4, a driving motor 5, a bearing 7, and a bearing seat 8.

[0202] In the above air conditioner indoor unit, as Figure 49As shown in the figure, the casing 1 is used to form the overall appearance of the indoor unit of the air conditioner. The casing 1 has a top and a bottom. The top of the casing 1 and the bottom of the casing 1 are opposite ends. The direction from the top of the casing 1 to the bottom of the casing 1 is the height direction of the casing 1; the left side of the casing 1 and the right side of the casing 1 are opposite sides. The direction from the left side of the casing 1 to the right side of the casing 1 is the length direction of the casing 1; the front side of the casing 1 and the rear side of the casing 1 are opposite sides. The direction from the front side of the casing 1 to the rear side of the casing 1 is the thickness direction of the casing 1. In this embodiment, the indoor unit of the air conditioner is a wall-mounted unit, and the rear side of the casing 1 faces the wall. An air heat exchange duct is defined inside the casing 1. The casing 1 is provided with a casing air inlet 11 and a casing air outlet 15. The casing air inlet 11 and the casing air outlet 15 are respectively communicated with the air heat exchange duct. The casing air inlet 11 is located at the top of the casing 1. A second grille is provided at the casing air inlet 11 to prevent sundries from entering the inside of the casing 1. The casing air outlet 15 is located at the front lower side of the casing 1. A wind deflector 2 is provided at the casing air outlet 15. The wind deflector 2 is connected to the casing 1 in a manner that can be opened and closed to open or close the casing air outlet 15. It should be noted that the casing 1 is also provided with a ventilation opening 12 to allow outdoor fresh air to flow into the room from the ventilation opening 12. In some embodiments, the ventilation opening 12 is located on the left side of the casing air inlet 11 and opens upward, so that the outdoor fresh air flows into the room in an upward direction, thereby avoiding the mixing of the outdoor fresh air and the air-conditioning air.

[0203] In some embodiments, such as Figure 52 and Figure 54 As shown in the figure, the casing 1 is provided with a first installation cavity 14, a second installation cavity 13 and a third installation cavity 16. The second installation cavity 13, the first installation cavity 14 and the third installation cavity 16 are arranged in sequence along the length direction of the casing 1. The first installation cavity 14 is used for installing the second blower 4. The second installation cavity 13 is used for installing the driving motor 5. The third installation cavity 16 is used for installing the fresh air module.

[0204] In other embodiments, the second installation cavity 13 is located on the right side of the first installation cavity 14; the third installation cavity 16 is located on the right side of the second installation cavity 13. Corresponding first installation parts 17 and second installation parts 18 are provided at both ends of the first installation cavity 14 along the length direction of the casing 1. And the first installation cavity 14 and the second installation cavity 13 are separated from each other through the first installation part 17. The second installation cavity 13 and the third installation cavity 16 are communicated with each other. It should be noted that the first installation cavity 14, the second installation cavity 13 and the third installation cavity 16 are arranged in sequence from left to right along the length direction of the casing 1.

[0205] In the above-mentioned indoor unit of the air conditioner, the heat exchanger is used to heat exchange the indoor air inside the casing 1 to form air-conditioning air. The heat exchanger is installed in the air heat exchange duct. It should be noted that the heat exchanger is arranged close to the casing air inlet 11. It should also be noted that the air-conditioning air can be cold air, hot air or even normal temperature air.

[0206] In the above air conditioner indoor unit, as Figures 54 - 56 shown, the drive motor 5 is used to drive the first blower 10 and the second blower 4 to rotate; the drive motor 5 is installed in the second installation cavity 13; the drive motor 5 is connected with a first connecting shaft and a second connecting shaft, and the drive motor 5 is connected with the second blower 4 through the first connecting shaft, and the drive motor 5 is connected with the first blower 10 through the second connecting shaft, so that the drive motor 5 can drive the first blower 10 and the second blower 4 to rotate synchronously; it should be noted that, in this embodiment, the drive motor 5 is a dual-axis motor, the drive motor 5 has a first motor shaft 51 and a second motor shaft 52, the first motor shaft 51 is connected with the second blower 4, and the second motor shaft 52 is connected with the first blower 10 to drive the first blower 10 and the second blower 4 to rotate synchronously; it should also be noted that the first connecting shaft includes the first motor shaft 51, and the second connecting shaft includes the second motor shaft 52.

[0207] In the above air conditioner indoor unit, as Figure 50 and Figure 51 shown, the second blower 4 is used to introduce indoor air into the interior of the housing 1. After heat exchange through the heat exchanger to form air-conditioning air, the air-conditioning air flows from the housing air outlet 15 to the room to meet the cooling or heating needs of the user; the second blower 4 is installed in the first installation cavity 14 and is located on the side of the heat exchanger away from the housing air inlet 11; a support shaft 41 is provided at one end of the second blower 4 away from the drive motor 5, and the support shaft 41 is connected with a bearing 7 to support the rotation of the second blower 4; it should be noted that the second blower 4 is a cross-flow blower.

[0208] In some embodiments, the second blower 4 extends along the length direction of the housing 1, a blower shaft sleeve 42 is provided at one end of the second blower 4 connected with the drive motor 5, a communication hole is provided in the blower shaft sleeve 42, and the rotating shaft of the drive motor 5 extends into the communication hole to connect the drive motor 5 with the second blower 4.

[0209] In the above air conditioner indoor unit, as Figure 50 and Figure 51As shown, the fresh air module is used to introduce outdoor fresh air into the room. The fresh air module includes a ventilation volute 3 and a first fan 10. The ventilation volute 3 is installed in the third installation cavity 16. A fresh air duct is defined inside the ventilation volute 3. The first fan 10 is installed inside the fresh air duct. The fresh air duct is provided with a second air inlet 37 and a second air outlet 351. The second air inlet 37 communicates with the outside, and the second air outlet 351 communicates with the ventilation opening 12. By operating the first fan 10, the outdoor fresh air is introduced into the fresh air duct through the pipeline from the second air inlet 37, passes through the second air outlet 351, and flows into the room through the ventilation opening 12. The first fan 10 is provided with a fan shaft 106. The fan shaft 106 is connected to the second motor shaft 52 through a coupling 6 to jointly form a second connecting shaft. The coupling 6 belongs to the prior art in this field and will not be elaborated here. It should be noted that the fresh air duct is provided with a reserved hole 312, so that the fan shaft 106 passes through the reserved hole 312 and is arranged outside the fresh air duct and connected to the second motor shaft 52, so that the first fan 10 is connected to the driving motor 5.

[0210] Specifically, as Figures 57 - 59 shown, the ventilation volute 3 includes a first volute 31, a second volute 32 and a ventilation shell 33. The first volute 31 and the second volute 32 are arranged opposite to each other and jointly form a fresh air cavity 321. The first fan 10 is installed in the fresh air cavity 321. The ventilation shell 33 is arranged opposite to the side of the second volute 32 away from the first volute 31 to jointly form a purification chamber 331. The second volute 32 is provided with a first grille 322. The first grille 322 is located at the connection between the purification chamber 331 and the fresh air cavity 321 to make the purification chamber 331 communicate with the fresh air cavity 321. A purification module 34 is arranged in the purification chamber 331 to purify the outdoor fresh air flowing into the purification chamber 331. The second air inlet 37 is opened in the purification chamber 331, and the second air outlet 351 is opened in the fresh air cavity 321, so that the purification module 34 purifies the outdoor fresh air entering the purification chamber 331 from the second air inlet 37, and the air purified by the purification module 34 in the purification chamber 331 enters the fresh air cavity 321 through the first grille 322, passes through the second air outlet 351 and flows into the room through the ventilation opening 12. It should be noted that the fresh air cavity 321 and the purification chamber 331 jointly form the fresh air duct. It should also be noted that the reserved hole 312 is opened in the first volute 31, and the opening of the reserved hole 312 faces the driving motor 5, and the reserved hole 312 communicates with the fresh air cavity 321.

[0211] In some embodiments, as Figure 57As shown, the ventilation volute 3 is provided with a flow guiding member 35. The flow guiding member 35 is connected to the first volute 31 and the second volute 31. The flow guiding member 35 defines a channel communicating with the fresh air chamber 321, so that the outdoor fresh air in the fresh air chamber 321 flows to the indoor through the channel in the flow guiding member 35 and out through the ventilation opening 12. It should be noted that the second air outlet 351 is opened at one end of the flow guiding member 35 away from the ventilation volute 3 and is oriented towards the ventilation opening 12, so that the channel in the flow guiding member 35 communicates with the ventilation opening 12.

[0212] In some embodiments, as Figure 61 shown, a restraining portion 311 is provided on the side of the first volute 31 facing away from the fresh air chamber 321. The restraining portion 311 defines a restraining chamber 3111. One end of the coupling 6 connected to the fan shaft 106 is disposed in the restraining chamber 3111 to restrain the position of the coupling 6.

[0213] In some embodiments, the purification module 34 includes a purification frame and a filter screen. The filter screen is disposed on the purification frame. The filter screen is used to filter and purify the outdoor fresh air to prevent impurities and flocs mixed in the outdoor fresh air from entering the indoor. It should be noted that the purification chamber 331 is provided with a socket, so that the purification module 34 can extend into the purification chamber 331 through the socket, thereby realizing the installation of the purification module 34. When the purification module 34 needs to be disassembled, the purification module 34 can be pulled out from the socket. By detachably installing the purification module 34 in the purification chamber 331, it is convenient for users to disassemble, clean and replace the filter screen by themselves. In this embodiment, the disassembly and installation methods of the purification module 34 are simple and easy to operate.

[0214] Since the driving motor 5 drives the second fan 4 and the first fan 10 to operate simultaneously, and the first fan 10 cannot stop working alone, when the air conditioner indoor unit is working, the fresh air function cannot be turned off. Therefore, the above-mentioned air conditioner indoor unit is provided with a switch assembly 36 at the second air inlet 37, and the switch assembly 36 is used to open or close the second air inlet 37 to control whether the outdoor fresh air is introduced into the purification chamber 331, so as to control the opening and closing of the fresh air function. When the air conditioner indoor unit is working and the fresh air function needs to be turned off, closing the second air inlet 37 can prevent the outdoor fresh air from being introduced into the purification chamber 331, thereby preventing the outdoor fresh air from flowing to the indoor through the second air outlet 351. When the fresh air function needs to be turned on, opening the second air inlet 37 can allow the outdoor fresh air to be introduced into the purification chamber 331 from the second air inlet 37, so that the outdoor fresh air flows to the indoor through the second air outlet 351. It should be noted that closing the second air inlet 37 by the switch assembly 36 can also prevent the fresh air from flowing back into the indoor when the air conditioner indoor unit is turned off, reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience.

[0215] Specifically, as Figure 58As shown, the switch assembly 36 includes a baffle 361, a baffle motor 363, and a gear and rack 362. The baffle 361 is disposed at the second air outlet 351 in an openable and closable manner. The baffle motor 363 is installed on the ventilation housing 33. A gear is connected to the rotating shaft of the baffle motor 363. The baffle 361 is provided with a rack 362, and the gear meshes with the rack 362. When the fresh air function is turned on, the baffle motor 363 drives the gear to drive the rack 362 to move, and then drives the baffle 361 to move linearly to open the second air inlet 37, so that outdoor fresh air can enter the room. When the fresh air function is turned off, the baffle motor 363 drives the gear to drive the rack 362 to move, and the baffle 361 moves linearly to close the second air inlet 37, thereby preventing outdoor fresh air from entering the room. It should be noted that the baffle 361 closing the second air inlet 37 can also prevent fresh air from flowing back into the room when the air conditioner indoor unit is turned off, reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience.

[0216] In the above air conditioner indoor unit, as Figure 54 , Figure 55 and Figure 63 shown, the first fan 10 is used to introduce indoor fresh air into the room. The first fan 10 is installed in the fresh air chamber 321. By operating the first fan 10, outdoor fresh air is introduced into the fresh air chamber 321 through the pipeline from the second air inlet 37, enters the fresh air chamber 321 after being purified by the purification module 34, and flows into the room through the second air outlet 351 and the ventilation opening 12.

[0217] Specifically, as Figures 64 - 66As shown, the first fan 10 includes a hub 101 and a plurality of blades 102; the plurality of blades 102 are sequentially arranged at intervals along the circumference of the hub 101 and are fixedly connected to the hub 101; the plurality of blades 102 are distributed along the circumferential direction of the hub 101 and form a circular base, the plurality of blades 102 surround the circumference to form a fan cavity 108, the fan cavity 108 is located in the middle part of the circular base, and the fan cavity 108 is located on a side where the plurality of blades 102 are close to each other, and the plurality of blades 102 are connected into one body through a connecting portion 103 on a side away from the cavity, so that the plurality of blades The blades 102 can work synchronously, so that the blades 102 as a whole can play the best working effect; there are gaps between adjacent blades 102, and the gaps between adjacent blades 102 are connected to the fan cavity 108 to form a fan outlet 109, and the fan outlet 109 is connected to the fan cavity 108 and the second air outlet 351, so that the airflow in the fan cavity 108 can flow to the second air outlet 351; the fan cavity 108 is also provided with a fan inlet, and the fan inlet is arranged toward the first grille 322, and the indoor air in the fresh air cavity 321 enters from the fan inlet The air flows into the fan cavity 108 and then flows out of the fan cavity 108 through the fan outlet 109; the ends of the plurality of blades 102 facing away from the fan air inlet are connected to the hub 101 and are connected as a whole through the hub 101 to increase the firmness of the connection between the plurality of blades 102; the connecting portion 103 is located at the end of the blade 102 facing the air inlet, and the connecting portion 103 and the hub 101 are respectively arranged at both ends of the blade 102 to ensure the firmness of the connection between the plurality of blades 102, so that the blade 102 as a whole can play the maximum working effect; the connecting portion 103 is only connected to On the side of several blades 102 away from the cavity, its purpose is to prevent the connection part 103 area from being too large to affect the working effect of the blades 102, and the connection part 103 is formed by integral injection molding with the blades 102. Reducing the area of ​​the connection part 103 can reduce the overall weight of the first fan 10; it should be noted that the side of the hub 101 away from the blades 102 is arranged toward the first volute 31, and there is a certain gap between the hub 101 and the first volute 31 along the length direction of the casing 1 to ensure the reliability of the operation of the first fan 10; it should also be noted that the first fan 10 is a centrifugal fan.

[0218] In some embodiments, the first fan 10 is provided with a connecting cavity 104 , a fan shaft 106 is provided in the connecting cavity 104 , and a fixing portion 105 is provided in the connecting cavity 104 , and one end of the fan shaft 106 away from the supporting shaft 41 is connected to the fixing portion 105 .

[0219] In other embodiments, the fixing portion 105 and the inner wall of the connecting cavity 104 opening toward the connecting cavity 104 jointly define a receiving cavity, and one end of the fan shaft 106 away from the supporting shaft 41 extends into the receiving cavity to increase the strength of the connection between the fan shaft 106 and the fixing portion 105.

[0220] In some embodiments, the connection cavity 104 is formed by the middle part of the hub 101 protruding away from the reserved hole 312, and the opening of the connection cavity 104 faces the reserved hole 312.

[0221] In the prior art, there is no direct connection relationship between the first blower 10 and the first volute 31 in the length direction of the housing 1, resulting in a large difference between the actual value and the theoretical value of the clearance size between the first blower 10 and the first volute 31. Therefore, in this embodiment, a connecting member 20 is provided. One end of the connecting member 20 in the length direction of the housing 1 is fixedly connected to the first volute 31, and the other end of the connecting member 20 in the length direction of the housing 1 is rotatably connected to the first blower 10 to ensure the reliability and stability of the connection relationship between the first blower 10 and the first volute 31, thereby reducing the deviation between the actual value and the theoretical value of the clearance size; it should be noted that the connecting member 20 is provided with a connecting member through cavity for the blower shaft 106 to pass through, so that the blower shaft 106 passes through the connecting member through cavity and the reserved hole 312 to be connected to the support shaft 41.

[0222] Specifically, as Figures 66 - 69 shown, the connecting member 20 includes a first connecting member 202 and a second connecting member 201. The first connecting member 202 is connected to the first volute 31. One end of the second connecting member 201 in the length direction of the housing 1 is connected to the first connecting member 202, and the other end of the second connecting member 201 in the length direction of the housing 1 is rotatably connected to the first blower 10. The first connecting member 202 is defined to form a first cavity 2021. The first cavity 2021 is arranged along the length direction of the housing 1 and penetrates through the first connecting member 202. And the second connecting member 201 is defined to form a second cavity 2013. The second cavity 2013 communicates with the first cavity 2021 to jointly form the connecting member through cavity, so that the blower shaft 106 passes through the second cavity 2013, the first cavity 2021 to be connected to the second blower 4; it should be noted that the first cavity 2021 and the second cavity 2013 are respectively through cavities extending along the length direction of the housing 1.

[0223] To facilitate the rotational connection between the second connecting member 201 and the first fan 10, the first fan 10 is provided with a connection cavity 104, and the connection cavity 104 has a connection cavity opening facing the reserved hole 312; the second connecting member 201 includes a contact portion 2012, the contact portion 2012 extends along the length direction of the casing 1, one end of the contact portion 2012 along the length direction of the casing 1 extends into the connection cavity 104, and is rotatably connected to the first fan 10 relatively; it should be noted that there is a gap between the end of the contact portion 2012 extending into the connection cavity 104 and the inner wall of the connection cavity 104, and a movable member 9 is installed in the gap, and the movable member 9 is in contact with the contact portion 2012 and the inner wall of the connection cavity 104, so that the second connecting member 201 and the first fan 10 can rotate relatively; it should be noted that one end of the contact portion 2012 away from the connection cavity 104 is provided with a shielding portion 2011, the shielding portion 2011 is connected to the first connecting member 202 and extends in a plane intersecting the opening of the connection cavity 104, the shielding portion 2011 is located at the opening of the connection cavity 104 to close the opening of the connection cavity 104 and prevent the outdoor fresh air in the fresh air cavity 321 from entering the connection cavity 104; it should be noted that the movable member 9 is usually a ball, and can also be a roller, which belongs to the prior art in this field and will not be elaborated here.

[0224] To facilitate the connection between the first connecting member 202 and the first volute 31, the first connecting member 202 is provided with a first protrusion 2022 and a second protrusion 2023, the first protrusion 2022 and the second protrusion 2023 are respectively provided with mounting holes, the first volute 31 is provided with a connection hole 313, the connection hole 313 is arranged corresponding to the mounting holes, and fasteners such as bolts or screws are arranged in the mounting holes and the corresponding connection holes 313 to fixedly connect the first connecting member 202 and the first volute 31.

[0225] In some embodiments, the first connecting member 202 and the second connecting member 201 are detachably connected, the first connecting member 202 is provided with a third protrusion 2024, the third protrusion 2024 and the shielding portion 2011 are respectively provided with mounting holes, and fasteners such as bolts or screws are arranged in the mounting holes of the third protrusion 2024 and the shielding portion 2011 to fixedly connect the third protrusion 2024 and the shielding portion 2011; it should be noted that one end of the first protrusion 2022 along the length direction of the casing 1 is in contact with the first volute 31, and the other end of the first protrusion 2022 along the length direction of the casing 1 is in contact with the shielding portion 2011.

[0226] In some other embodiments, the fan shaft 106 is provided with a rotating portion 107. The rotating portion 107 is disposed within the first cavity 2021 and is rotatable relative to the first cavity 2021 to support the rotation of the fan shaft 106, thereby increasing the stability of the first fan 10 during operation. It should be noted that a positioning portion 2025 is provided within the first cavity 2021. The positioning portion 2025 is disposed near the opening of the first cavity 2021. The positioning portion 2025 cooperates with the rotating portion 107 to position the installation position of the rotating portion 107 within the first cavity 2021.

[0227] In the above air conditioner indoor unit, the bearing 7 is sleeved around the outer periphery of the support shaft 41 for supporting the rotation of the support shaft 41. The bearing 7 is provided with a bearing cavity 714 for the support shaft 41 to pass through. The support shaft 41 is disposed within the bearing cavity 714 so that the bearing 7 provides support for the rotation of the support shaft 41. Specifically, as Figures 69 - 71 shown, the bearing 7 includes a bearing sleeve 71 and bearing balls 72. The bearing cavity 714 extends through the bearing sleeve 71 and the bearing balls 72. The support shaft 41 passes through the bearing cavity 714. It should be noted that an installation space 715 is provided within the bearing sleeve 71. The installation space 715 communicates with the bearing cavity 714 and is close to the second fan 4. The bearing balls 72 are disposed within the installation space 715 and are connected to the support shaft 41.

[0228] In some embodiments, a reinforcing portion 716 is provided at one end of the bearing sleeve 71 away from the second fan 4. The bearing cavity 714 extends axially along the support shaft 41 to the reinforcing portion 716 to increase the contact area between the support shaft 41 and the bearing sleeve 71. It should be noted that the end of the reinforcing portion 716 away from the bearing sleeve 71 is a closed end.

[0229] In the above air conditioner indoor unit, the bearing seat 8 is used to install the bearing 7 so that the bearing 7 can better support the support shaft 41. The bearing seat 8 is disposed outside the bearing 7 and is installed on the housing 1. Specifically, as Figures 72 - 75As shown in the figure, a first through cavity 84 is provided inside the bearing housing 8. The first through cavity 84 is used to install the bearing 7. The bearing 7 is arranged in the first through cavity 84 and the outer circumference of the bearing sleeve 71 is in close contact with the inner wall of the first through cavity 84, so that the bearing 7 is connected to the bearing housing 8. The first through cavity 84 extends along the length direction of the casing 1, so that the support shaft 41 can extend into the first through cavity 84 to be connected to the bearing 7 and pass through the first through cavity 84 to be connected to the second fan 4. It should be noted that a connecting platform is provided in the first through cavity 84, which is located in the first through cavity 84 and arranged circumferentially along the first through cavity 84. The bearing sleeve 71 is provided with a connecting block 711, which is located on the outer circumference of the bearing sleeve 71 and arranged circumferentially along the bearing sleeve 71. The connecting block 711 abuts against the connecting platform, so that the bearing sleeve 71 is tightly assembled with the inner wall of the first through cavity 84, thereby fixedly connecting the bearing 7 to the bearing housing 8. It should also be noted that the connecting platform is connected to the inner wall of the first through cavity 84, and the inner diameter dimension of the connecting platform gradually decreases along the axial direction of the first through cavity 84 from the direction close to the second fan 4, so that the closer the bearing sleeve 71 is to the second fan 4, the greater the mutual extrusion force between the bearing sleeve 71 and the inner wall of the first through cavity 84, which is convenient for connecting the bearing 7 to the bearing housing 8.

[0230] In some embodiments, the bearing housing 8 is provided with a stop block 85. The stop block 85 is located at the opening of the first through cavity 84 facing the second fan 4. The stop block 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from disengaging from the first through cavity 84.

[0231] In some embodiments, the bearing housing 8 is provided with a positioning block 86. The positioning block 86 is located in the first through cavity 84. The bearing sleeve 71 is provided with a connecting groove 712 corresponding to the positioning block 86. The connecting groove 712 is located on the outer circumference of the bearing sleeve 71. The positioning block 86 is arranged in the connecting groove 712 to position the installation position of the bearing 7 in the first through cavity 84.

[0232] In some embodiments, buffer ribs 713 are provided on the outer circumference of the bearing sleeve 71. The buffer ribs 713 protrude from the outer surface of the bearing sleeve 71 and abut against the inner wall of the first through cavity 84. On the one hand, the buffer ribs 713 can facilitate the installation of the bearing sleeve 71 in the first through cavity 84. On the other hand, they can also increase the firmness of the abutment between the bearing sleeve 71 and the inner wall of the first through cavity 84, and can also protect the part of the bearing sleeve 71 in contact with the inner wall of the first through cavity 84.

[0233] To facilitate the installation of the bearing housing 8, as Figure 56 and Figure 57 shown, the second installation part 18 is provided with a limiting space 181. The limiting space 181 extends along the length direction of the casing 1. The bearing housing 8 is arranged in the limiting space 181 to position the installation position of the bearing housing 8 in the second installation part 18.

[0234] In some embodiments, a receiving cavity is provided in the second mounting portion 18. The opening of the receiving cavity faces the top of the housing 1 and is communicated with the limiting space 181. A first support platform 183 is provided in the receiving cavity. The first support platform 183 abuts against the bottom of the bearing seat 8 to support the bearing seat 8.

[0235] In some embodiments, the bearing seat 8 is provided with an extension portion 83. The extension portion 83 is disposed in the receiving cavity to locate the connection position between the bearing seat 8 and the second mounting portion 18. It should be noted that the extension portion 83 is configured to be two. The two extension portions 83 are respectively located outside the bearing seat 8 and extend along the height direction of the housing 1. The two extension portions 83 are oppositely arranged along the length direction of the housing 1 and there is a gap between them. The first support platform 183 is located between the two extension portions 83. It should also be noted that the receiving cavity includes a first receiving cavity and a second receiving cavity. The first receiving cavity and the second receiving cavity are arranged in parallel. The first receiving cavity is close to the fresh air module, and the second receiving cavity is close to the second fan 4. The two extension portions 83 are correspondingly disposed in the first receiving cavity and the second receiving cavity to further position the bearing seat 8.

[0236] In other embodiments, as Figure 57 and Figure 72 shown, the clamping portion 82 is disposed on the extension portion 83 in the first receiving cavity and is located on the side of the extension portion 83 away from the other extension portion 83. The second mounting portion 18 is provided with a clamping space 184. The clamping space 184 is communicated with the first receiving cavity. The clamping portion 82 is disposed in the clamping space 184 to fixedly connect the bearing seat 8 and the second mounting portion 18, thereby mounting the bearing seat 8 in the housing 1. In some embodiments, as Figure 72 shown, the bearing seat 8 is further provided with a support portion 81. The support portion 81 is connected to the tops of the two extension portions 83. As Figure 55 shown, a second support platform 182 is further provided in the receiving cavity. The support portion 81 is located on the top of the second support platform 182 to support the bearing seat 8. It should be noted that the support portion 81 is configured to be two. The two support portions 81 are symmetrically arranged along the thickness direction of the housing 1. And the second support platform 182 is also configured to be two. The two second support platforms 182 are arranged in one-to-one correspondence with the two support portions 81.

[0237] In the above air conditioner indoor unit, the installation accuracy of the first blower 10 is high, and the deviation between the actual value and the theoretical value of the gap between the first blower 10 and the first volute 31 is small, so that the noise transmitted to the room during the operation of the air conditioner indoor unit is small and the fresh air volume is large. The air conditioner indoor unit is fixedly connected to the first volute 31 by setting a connecting member 20 and is rotatably connected to the first blower 10, so that the actual value of the gap between the first blower 10 and the inner wall of the first volute 31 has a small error from the theoretical value, thereby ensuring the installation accuracy of the first blower 10 in the fresh air cavity 321; and the connecting member 20 is defined to form a connecting member through cavity, so that the blower shaft 106 passes through the connecting member through cavity and is connected to the second motor shaft 52 of the driving motor 5, so that the driving motor 5 drives the first blower 10 to operate; by providing a rotating portion 107 on the blower shaft 106 and installing the rotating portion 107 in the connecting member through cavity to support the rotation of the blower shaft 106, the stability during the operation of the first blower 10 is increased.

[0238] Figures 78 - 96 This is a specific embodiment of the air conditioner indoor unit of the present invention. In this embodiment, the air conditioner indoor unit includes a housing 1, a heat exchanger 4, a fresh air module, a second blower 6, a driving motor 5, and a bearing 7.

[0239] In the above air conditioner indoor unit, as Figure 78 shown, the housing 1 is used to form the overall appearance of the air conditioner indoor unit. The housing 1 has a top and a bottom. The top of the housing 1 and the bottom of the housing 1 are opposite ends. The direction from the top of the housing 1 to the bottom of the housing 1 is the height direction of the housing 1; the left side of the housing 1 and the right side of the housing 1 are opposite sides. The direction from the left side of the housing 1 to the right side of the housing 1 is the length direction of the housing 1; the front side of the housing 1 and the rear side of the housing 1 are opposite sides. The direction from the front side of the housing 1 to the rear side of the housing 1 is the thickness direction of the housing 1; in this embodiment, the air conditioner indoor unit is a wall-mounted unit, and the rear side of the housing 1 faces the wall; a heat exchange air duct is defined inside the housing 1. The housing 1 is provided with a housing air inlet 11 and a housing air outlet 15. The housing air inlet 11 and the housing air outlet 15 are respectively communicated with the heat exchange air duct. The housing air inlet 11 is located at the top of the housing 1. A second grille is provided at the housing air inlet 11 to prevent sundries from entering the inside of the housing 1; the housing air outlet 15 is located at the front lower side of the housing 1. A wind deflector 2 is provided at the housing air outlet 15. The wind deflector 2 is connected to the housing 1 in a manner that can be opened and closed to open or close the housing air outlet 15; it should be noted that the housing 1 is also provided with a ventilation opening 12, so that outdoor fresh air flows into the room through the ventilation opening 12; in some embodiments, the ventilation opening 12 is located on the left side of the housing air inlet 11 and opens upward, so that outdoor fresh air flows into the room in an upward direction, thereby avoiding the mixing of outdoor fresh air and air conditioner air.

[0240] In some embodiments, as Figure 81 and Figure 83As shown, the casing 1 is provided with a first installation cavity 14, a second installation cavity 13 and a third installation cavity 16. The second installation cavity 13, the first installation cavity 14 and the third installation cavity 16 are arranged in sequence along the length direction of the casing 1. The first installation cavity 14 is used for installing the second blower 6. The second installation cavity 13 is used for installing the drive motor 5. The third installation cavity 16 is used for installing the fresh air module.

[0241] In some other embodiments, the third installation cavity 16 is located on the left side of the first installation cavity 14, and the second installation cavity 13 is located on the right side of the first installation cavity 14. The second installation cavity 13 and the first installation cavity 14 are separated from each other by the first installation part 17, and the first installation cavity 14 and the third installation cavity 16 are separated from each other by the second installation part 18. It should be noted that the third installation cavity 16, the first installation cavity 14 and the second installation cavity 13 are arranged in sequence from left to right along the length direction of the casing 1.

[0242] In the above air conditioner indoor unit, as Figure 79 shown, the heat exchanger 4 is used to exchange heat of the indoor air inside the casing 1 to form air-conditioning air to meet the cooling or heating needs of users. The heat exchanger 4 is installed in the heat exchange air duct. It should be noted that the heat exchanger 4 is arranged close to the air inlet 11 of the casing. It should also be noted that the air-conditioning air can be cold air, hot air or even normal temperature air.

[0243] In the above air conditioner indoor unit, as Figures 79 - 81 shown, the fresh air module is used to introduce outdoor fresh air into the room. The fresh air module includes a ventilation volute 3 and a first blower 9. The ventilation volute 3 is installed in the third installation cavity 16. A fresh air duct is defined inside the ventilation volute 3. The first blower 9 is installed in the fresh air duct. The fresh air duct is provided with a second air inlet 35 and a second air outlet 37. The second air inlet 35 is communicated with the outside, and the second air outlet 37 is communicated with the ventilation opening 12. By operating the first blower 9, the outdoor fresh air is introduced into the fresh air duct through the pipeline from the second air inlet 37, passes through the second air outlet 35, and flows into the room through the ventilation opening 12. It should be noted that in some embodiments, a purification module 34 is provided in the fresh air duct to purify the outdoor fresh air flowing into the room.

[0244] Specifically, as Figure 87 and Figure 88As shown, the ventilation volute 3 includes a first volute 31, a second volute 32 and a ventilation shell 33; the first volute 31 and the second volute 32 are arranged opposite to each other and jointly form a fresh air cavity 321, and the first fan 9 is installed in the fresh air cavity 321; the ventilation shell 33 and the second volute 32 are arranged opposite to each other on the side away from the first volute 31 to jointly form a purification chamber 331; the second volute 32 is provided with a first grille 322, and the first grille 322 is located at the connection between the purification chamber 331 and the fresh air cavity 321, so that the purification chamber 331 and the fresh air cavity 321 are connected to each other; wherein The second air inlet 37 is opened in the purification chamber 331, the second air outlet 35 is opened in the fresh air cavity 321, and the purification module 34 is arranged in the purification chamber 331, so that the purification module 34 purifies the outdoor fresh air entering the purification chamber 331 through the second air inlet 37, and makes the air in the purification chamber 331 purified by the purification module 34 pass through the first grille 322 into the fresh air cavity 321, and flow into the room through the second air outlet 35 from the ventilation port 12; it should be noted that the fresh air cavity 321 and the purification chamber 331 together form a fresh air duct.

[0245] In some embodiments, the purification module 34 includes a purification frame and a filter net, which is arranged on the purification frame. The filter net is used to filter and purify outdoor fresh air to prevent impurities and flocs mixed in the outdoor fresh air from entering the room. It should be noted that the purification chamber 331 is provided with a socket, so that the purification module 34 can be extended into the purification chamber 331 through the socket, thereby realizing the installation of the purification module 34. When the purification module 34 needs to be disassembled, the purification module 34 can be unplugged from the socket. By detachably installing the purification module 34 in the purification chamber 331, it is convenient for users to disassemble, clean and replace the filter net by themselves. In this embodiment, the disassembly and installation method of the purification module 34 is simple and easy to operate.

[0246] In the above-mentioned air conditioner indoor unit, Figure 87 , Figure 88 and Figure 90 As shown, the first fan 9 is used to introduce indoor fresh air into the room; the first fan 9 is installed in the fresh air chamber 321, and through the operation of the first fan 9, the outdoor fresh air is introduced into the fresh air chamber 321 through the pipeline from the second air inlet 37, enters the fresh air chamber 321 after purification by the purification module 34, and flows into the room from the second air outlet 35 and the vent 12; it should be noted that the first fan 9 is a centrifugal fan.

[0247] In the above-mentioned air conditioner indoor unit, Figure 80 , Figure 89 and Figure 90As shown in the figure, the second blower 6 is used to introduce indoor air into the interior of the casing 1. After heat exchange through the heat exchanger 4 to form air-conditioning air, the air-conditioning air flows from the air outlet 15 of the casing to the interior of the room. The second blower 6 is installed in the first installation cavity 14 and is located on the side of the heat exchanger 4 away from the air inlet 11 of the casing. The second blower 6 is connected to a driving motor 5, and the driving motor 5 is installed in the second installation cavity 13 to drive the second blower 6 to operate. It should be noted that the end of the second blower 6 far from the driving motor 5 is connected to the first blower 9, so that the driving motor 5 can drive the second blower 6 and the first blower 9 to operate simultaneously. It should also be noted that the second blower 6 is a cross-flow blower.

[0248] In some embodiments, as Figure 90 shown in the figure, the second blower 6 extends along the length direction of the casing 1. One end of the second blower 6 connected to the driving motor 5 is provided with a blower shaft sleeve 62. The blower shaft sleeve 62 is provided with a connection hole, and the rotating shaft of the driving motor 5 extends into the connection hole to connect the driving motor 5 and the second blower 6. One end of the second blower 6 far from the driving motor 5 is connected to a driving shaft 61. The driving shaft 61 is used to connect the second blower 6 and the first blower 9. One end of the driving shaft 61 is connected to the second blower 6, and the other end of the driving shaft 61 is connected to the first blower 9 to make the second blower 6 and the first blower 9 operate simultaneously. It should be noted that in order to facilitate the connection between the driving shaft 61 and the first blower 9 arranged in the fresh air cavity 321, the first volute 31 is provided with a reserved hole 311. The reserved hole 311 communicates with the fresh air cavity 321, and the opening of the reserved hole 311 faces the second blower 6.

[0249] Since the driving motor 5 drives the second blower 6 and the first blower 9 to operate simultaneously, the first blower 9 cannot stop working alone, resulting in that when the air-conditioning indoor unit is working, the fresh air function cannot be turned off. Therefore, the above air-conditioning indoor unit is provided with a switch assembly 36 at the second air inlet 37, and the switch assembly 36 is used to open or close the second air inlet 37 to control whether outdoor fresh air is introduced into the purification chamber 331, so as to control the opening and closing of the fresh air function. When the air-conditioning indoor unit is working and it is necessary to turn off the fresh air function, closing the second air inlet 37 can prevent outdoor fresh air from being introduced into the purification chamber 331, thereby preventing the outdoor fresh air from flowing into the room through the second air outlet 35. When it is necessary to turn on the fresh air function, opening the second air inlet 37 can allow outdoor fresh air to be introduced into the purification chamber 331 from the second air inlet 37, so that the outdoor fresh air flows into the room through the second air outlet 35. It should be noted that closing the second air inlet 37 by the switch assembly 36 can also prevent fresh air from flowing back into the room when the air-conditioning indoor unit is turned off, reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience. It should also be noted that the switch assembly 36 belongs to the conventional technical means in the art and will not be elaborated here.

[0250] In the above-mentioned air conditioner indoor unit, the bearing 7 is sleeved on the outer periphery of the drive shaft 61 for supporting the rotation of the drive shaft 61; the bearing 7 is provided with a bearing through cavity 714 for the drive shaft 61 to pass through, and the drive shaft 61 passes through the bearing through cavity 714 and extends into the fresh air cavity 321 to be connected with the first fan 9; specifically, as Figures 91 - 93 shown, the bearing 7 includes a bearing sleeve 71 and bearing balls 72, and the bearing through cavity 714 runs through the bearing sleeve 71 and the bearing balls 72; the two ends of the bearing through cavity 714 are respectively opened towards the first fan 9 and the second fan 6; the drive shaft 61 passes through the bearing through cavity 714; it should be noted that an installation space 715 is provided in the bearing sleeve 71, and the installation space 715 is communicated with the bearing through cavity 714 and is close to the second fan 6; the bearing balls 72 are arranged in the installation space 715 and are connected with the drive shaft 61.

[0251] In the above-mentioned air conditioner indoor unit, as Figure 82 , Figure 85 , Figure 86 , Figure 92 and Figure 94 shown, the bearing seat 8 is used for installing the bearing 7 so that the bearing 7 can better support the drive shaft 61; the bearing seat 8 is arranged outside the bearing 7 and is connected with the housing 1. Specifically, as Figures 94 - 96As shown, a first through cavity 84 is provided inside the bearing housing 8. The first through cavity 84 is used to install the bearing 7. The bearing 7 is arranged inside the first through cavity 84 and the outer periphery of the bearing sleeve 71 is in close fit with the inner wall of the first through cavity 84, so that the bearing 7 is connected to the bearing housing 8. The first through cavity 84 extends along the length direction of the housing 1. The two openings of the first through cavity 84 are correspondingly oriented towards the first volute 31 and the second blower 6, so that the drive shaft 61 can extend into the first through cavity 84 to be connected to the bearing 7 and pass through the first through cavity 84 to be connected to the second blower 6. The bearing housing 8 is used to install the bearing 7, so that the bearing 7 can better support the support shaft 41. The bearing housing 8 is arranged outside the bearing 7 and installed on the housing 1. A first through cavity 84 is provided inside the bearing housing 8. The first through cavity 84 is used to install the bearing 7. The bearing 7 is arranged inside the first through cavity 84 and the outer periphery of the bearing sleeve 71 is in close fit with the inner wall of the first through cavity 84, so that the bearing 7 is connected to the bearing housing 8. The first through cavity 84 extends along the length direction of the housing 1, so that the support shaft 41 can extend into the first through cavity 84 to be connected to the bearing 7 and pass through the first through cavity 84 to be connected to the second blower 6. It should be noted that a connecting platform is provided inside the bearing through cavity 84. The connecting platform is located inside the bearing through cavity 84 and is arranged circumferentially along the bearing through cavity 84. The bearing sleeve 71 is provided with a connecting block 711. The connecting block 711 is located on the outer periphery of the bearing sleeve 71 and is arranged circumferentially along the bearing sleeve 71. The connecting block 711 abuts against the connecting platform, so that the bearing sleeve 71 is tightly assembled with the inner wall of the bearing through cavity 84, thereby fixedly connecting the bearing 7 to the bearing housing 8. It should also be noted that the connecting platform is connected to the inner wall of the bearing through cavity 84, and the inner diameter dimension of the connecting platform gradually decreases along the axial direction of the bearing through cavity 84 from the direction close to the second blower 6, so that the closer the bearing sleeve 71 is to the second blower 6, the greater the mutual extrusion force between the bearing sleeve 71 and the inner wall of the bearing through cavity 84, which is convenient for connecting the bearing 7 to the bearing housing 8.

[0252] In some embodiments, the bearing housing 8 is provided with a stop block 85. The stop block 85 is located at the opening of the bearing through cavity 84 facing the second blower 6. The stop block 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from disengaging from the bearing through cavity 84.

[0253] In some embodiments, the bearing housing 8 is provided with a positioning block 86. The positioning block 86 is located inside the bearing through cavity 84. The bearing sleeve 71 is provided with a connecting groove 712 corresponding to the positioning block 86. The connecting groove 712 is located on the outer periphery of the bearing sleeve 71. The positioning block 86 is arranged inside the connecting groove 712 to position the installation position of the bearing 7 inside the bearing through cavity 84.

[0254] In some embodiments, a buffer rib 713 is provided on the outer periphery of the bearing sleeve 71. The buffer rib 713 is protruding from the outer surface of the bearing sleeve 71 and abuts against the inner wall of the first through cavity 84. The buffer rib 713 can facilitate the installation of the bearing sleeve 71 in the first through cavity 84 on the one hand, and can also increase the firmness of the abutment between the bearing sleeve 71 and the inner wall of the first through cavity 84 on the other hand, and can also protect the part of the bearing sleeve 71 that contacts the inner wall of the first through cavity 84.

[0255] In order to facilitate the installation of the bearing seat 8, Figure 83 and Figure 84 As shown, the second mounting portion 18 is provided with a through channel 181 , which extends along the length direction of the housing 1 , and the bearing seat 8 is disposed in the through channel 181 to locate the mounting position of the bearing seat 8 on the second mounting portion 18 .

[0256] In some embodiments, a accommodating cavity is provided in the second mounting portion 18, the opening of the accommodating cavity is set toward the top of the casing 1 and is connected to the through channel 181, and a first support platform 183 is provided in the accommodating cavity, which abuts against the bottom of the bearing seat 8 to support the bearing seat 8.

[0257] In some embodiments, Figure 95 and Figure 96 As shown, the bearing seat 8 is provided with an extension portion 83, and the extension portion 83 is arranged in the accommodating cavity to locate the connection position of the bearing seat 8 and the second mounting portion 18; it should be noted that the extension portion 83 is configured as two, and the two extension portions 83 are respectively located on the outside of the bearing seat 8 and extend along the height direction of the casing 1; the two extension portions 83 are respectively arranged opposite to each other along the length direction of the casing 1 and there is a gap between the two; the first support platform 183 is located between the two extension portions 83; it should also be noted that the accommodating cavity includes a first accommodating cavity and a second accommodating cavity, the first accommodating cavity and the second accommodating cavity are arranged in parallel, the first accommodating cavity is arranged close to the fresh air module, and the second accommodating cavity is arranged close to the second fan 6; the two extension portions 83 are correspondingly arranged in the first accommodating cavity and the second accommodating cavity to further position the bearing seat 8.

[0258] In other embodiments, Figure 86 and Figure 95 As shown, the clamping portion 82 is arranged on the extension portion 83 in the first accommodating cavity and is located on the side of the extension portion 83 away from the other extension portion 83; the second mounting portion 18 is provided with a clamping space 184, and the clamping space 184 is communicated with the first accommodating cavity. The clamping portion 82 is arranged in the clamping space 184 to fix the bearing seat 8 and the second mounting portion 18 in connection, thereby installing the bearing seat 8 in the housing 1. In some embodiments, Figure 95 As shown, the bearing seat 8 is further provided with a support portion 81, and the support portion 81 is connected to the top of the two extension portions 83; Figure 84As shown, a second support platform 182 is further provided in the accommodation cavity, and the support portion 81 is located at the top of the second support platform 182 to support the bearing housing 8. It should be noted that the support portion 81 is configured into two, and the two support portions 81 are symmetrically arranged along the thickness direction of the housing 1; and the second support platform 182 is also configured into two, and the two second support platforms 182 are arranged in one-to-one correspondence with the two support portions 81.

[0259] In practical applications, the drive shaft 61 is provided with a positioning portion, which protrudes from the outer periphery of the drive shaft 61 and is located in the fresh air cavity 321 to position the connection position of the first fan 9 and the drive shaft 61. It should be noted that the minimum value of the distance range from the point on the axis of the drive shaft 61 to the point on the outer edge of the positioning portion is the distance from the point on the axis of the drive shaft 61 to the outer periphery of the drive shaft 61, that is, the outer diameter dimension of the positioning portion is larger than the outer diameter dimension of the drive shaft 61 at its connection portion, so that the positioning portion can effectively position the first fan 9. In some embodiments, the positioning portion is detachably connected to the drive shaft 61; the positioning portion is usually a snap ring, and the drive shaft 61 is provided with a positioning space 712 corresponding to the snap ring. The positioning space 712 is arranged along the circumferential direction of the drive shaft 61, and the snap ring is arranged in the positioning space 712 so that the snap ring is connected to the drive shaft 61.

[0260] In some embodiments, the positioning portion and the drive shaft 61 are integrally formed. The positioning portion and the drive shaft 61 are usually made of metal by turning. This belongs to the prior art and will not be elaborated here.

[0261] It should be noted that whether the positioning portion is detachably connected to the drive shaft 61 or integrally formed, the positioning portion is usually integrated with the drive shaft 61, then passes through the reserved hole 311 and extends into the fresh air cavity 321 to be connected to the first fan 9. This requires that the inner diameter dimension of the reserved hole 311 is usually larger than the outer diameter dimension of the positioning portion, so that the positioning portion can freely pass through the reserved hole 311 and be arranged in the fresh air cavity 321. Since the outer diameter dimension of the drive shaft 61 is usually smaller than the outer diameter dimension of the positioning portion, when the drive shaft 61 passes through the reserved hole 311, there will be a certain gap between the drive shaft 61 and the reserved hole 311. The outdoor fresh air in the fresh air cavity 321 is likely to leak from the gap between the drive shaft 61 and the reserved hole 311, resulting in condensation around the reserved hole 311 and on the drive shaft 61, affecting the product quality. Therefore, in this embodiment, a seal 10 is provided at the reserved hole 311 to seal the gap between the drive shaft 61 and the reserved hole 311 to prevent the outdoor fresh air in the fresh air cavity 321 from leaking.

[0262] Specifically, as Figures 91 - 92As shown, the seal 10 includes a connecting portion 102 and a sealing portion 101. The sealing portion 101 is provided at the edge of the reserved hole 311 and is connected to the side of the first volute 31 facing away from the fresh air chamber 321. The connecting portion 102 extends along the axial direction of the drive shaft 61. One end of the connecting portion 102 is connected to the side of the sealing portion 101 facing away from the first volute 31, and the other end of the connecting portion 102 is connected to the bearing sleeve 71. It should be noted that a transition chamber 103 is defined inside the seal 10. The transition chamber 103 penetrates through the sealing portion 101 and the connecting portion 102 along the axial direction of the drive shaft 61, and the transition chamber 103 is respectively communicated with the bearing through chamber 714 and the fresh air chamber 321, so that the drive shaft 61 can enter the fresh air chamber 321 through the transition chamber 103 to be connected with the first fan 9, avoiding the sealing portion 101 from hindering the drive shaft 61 from extending into the fresh air chamber 321. Since the transition chamber 103 is communicated with the fresh air chamber 321 and the bearing through chamber 714, the drive shaft 61 passes through the bearing through chamber 714 and the transition chamber 103 to enter the fresh air chamber 321 to be connected with the first fan 9, driving the first fan 9 to rotate synchronously with the second fan 6. Under the blocking action of the seal 10, the outdoor fresh air in the fresh air chamber 321 cannot leak through the gap between the drive shaft 61 and the reserved hole 311.

[0263] In some embodiments, the maximum value of the distance range between the point on the axis of the drive shaft 61 and the point on the outer periphery of the sealing portion 101 is the distance between the point on the axis of the drive shaft 61 and the point on the outer periphery of the connecting portion 102, that is, the outer diameter dimension of the sealing portion 101 is larger than the outer diameter dimension of the connecting portion 102.

[0264] In some other embodiments, the seal 10 and the bearing sleeve 71 are integrally formed, so as to facilitate the connection between the seal 10 and the bearing sleeve 71, and also facilitate the production of the seal 10 and the bearing sleeve 71.

[0265] In some other embodiments, the seal 10 and the bearing sleeve 71 are made of rubber or silica gel. This is because rubber or silica gel has a soft texture and good compressibility, and has a better sealing effect on the fresh air chamber 321.

[0266] The working principle of the above air conditioner indoor unit is as follows: The driving motor 5 drives the second fan 6 to rotate. The drive shaft 61 passes through the bearing through chamber 714 and the transition chamber 103 to drive the first fan 9 to rotate. The sealing portion 101 is provided at the reserved hole 311 to seal the gap between the drive shaft 61 and the reserved hole 311, thereby preventing the outdoor fresh air in the fresh air chamber 321 from leaking through the gap between the drive shaft 61 and the reserved hole 311.

[0267] The connection step of the drive shaft 61 and the first fan 9 in the above air conditioner indoor unit is as follows: First, pass the drive shaft 61 through the reserved hole 311 to connect with the first fan 9, and then connect the second volute 32 with the first volute 31.

[0268] The above air conditioner indoor unit seals the gap between the drive shaft 61 and the reserved hole 311 by providing the seal 10, so as to prevent the outdoor fresh air in the fresh air chamber 321 from leaking through the gap between the drive shaft 61 and the reserved hole 311; and the seal 10 defines and forms a transition chamber 103, and the transition chamber 103 is used to connect the bearing through chamber 714 and the fresh air chamber 321, so that the drive shaft 61 can pass through the transition chamber 103 and be connected to the first blower 9 in the fresh air chamber 321, which neither affects the sealing effect of the seal 10 nor hinders the connection between the drive shaft 61 and the first blower 9 due to the provision of the seal 10 at the reserved hole 311. In the above air conditioner indoor unit, the fresh air chamber 321 has a good sealing effect, the outdoor fresh air is not easy to leak, the fresh air volume is large, and condensation is not likely to occur.

[0269] Figures 97 - 122 This is a specific implementation manner of the air conditioner indoor unit of the present invention. In this embodiment, the air conditioner indoor unit includes a housing 1, a heat exchanger, a fresh air module, a second blower 4, and a drive motor 5.

[0270] In the above air conditioner indoor unit, as Figure 97 shown, the housing 1 is used to form the overall appearance of the air conditioner indoor unit. The housing 1 has a top and a bottom. The top of the housing 1 and the bottom of the housing 1 are opposite ends. The direction from the top of the housing 1 to the bottom of the housing 1 is the height direction of the housing 1; the left side of the housing 1 and the right side of the housing 1 are opposite sides. The direction from the left side of the housing 1 to the right side of the housing 1 is the length direction of the housing 1; the front side of the housing 1 and the rear side of the housing 1 are opposite sides. The direction from the front side of the housing 1 to the rear side of the housing 1 is the thickness direction of the housing 1; in this embodiment, the air conditioner indoor unit is a wall-mounted unit, and the rear side of the housing 1 faces the wall; an air heat exchange duct is defined inside the housing 1. The housing 1 is provided with a housing air inlet 11 and a housing air outlet 15. The housing air inlet 11 and the housing air outlet 15 are respectively communicated with the air heat exchange duct. The housing air inlet 11 is located at the top of the housing 1, and a second grille is provided at the housing air inlet 11 to prevent sundries from entering the inside of the housing 1; the housing air outlet 15 is located at the front lower side of the housing 1, and a wind deflector 2 is provided at the housing air outlet 15. The wind deflector 2 is connected to the housing 1 in a manner that can be opened and closed to open or close the housing air outlet 15; it should be noted that the housing 1 is also provided with a ventilation opening 12 to allow outdoor fresh air to flow into the room from the ventilation opening 12; in some embodiments, the ventilation opening 12 is located on the left side of the housing air inlet 11 and opens upward, so that the outdoor fresh air flows into the room in an upward direction, thereby avoiding the mixing of the outdoor fresh air and the air conditioner air.

[0271] In some embodiments, as Figure 100As shown in the figure, the housing 1 is provided with a first installation cavity 14, a second installation cavity 13, and a third installation cavity 16. The second installation cavity 13, the first installation cavity 14, and the third installation cavity 16 are arranged in sequence along the length direction of the housing 1. The first installation cavity 14 is used for installing the second fan 4. The second installation cavity 13 is used for installing the drive motor 5. The third installation cavity 16 is used for installing the fresh air module.

[0272] In some other embodiments, the second installation cavity 13 is located on the right side of the first installation cavity 14. The third installation cavity 16 is located on the right side of the second installation cavity 13. The two ends of the first installation cavity 14 along the length direction of the housing 1 are respectively provided with a first installation part 17 and a second installation part 18. And the first installation cavity 14 and the second installation cavity 13 are separated from each other through the first installation part 17. The second installation cavity 13 and the third installation cavity 16 are communicated with each other. It should be noted that the first installation cavity 14, the second installation cavity 13, and the third installation cavity 16 are arranged in sequence from left to right along the length direction of the housing 1.

[0273] In the above air conditioner indoor unit, the heat exchanger is used for heat-exchanging the indoor air inside the housing 1 to form air-conditioning air. The heat exchanger is installed in the heat exchange air duct. It should be noted that the heat exchanger is arranged close to the air inlet 11 of the housing. It should also be noted that the air-conditioning air can be cold air, hot air, or even normal-temperature air.

[0274] In the above air conditioner indoor unit, as Figure 98 and Figure 99 、 Figure 102 and Figure 103 shown, the drive motor 5 is used for driving the first fan 9 and the second fan 4 to rotate. The drive motor 5 is installed in the second installation cavity 13. In this embodiment, the drive motor 5 is a double-shaft motor. As Figure 104 shown, the drive motor 5 has a first motor shaft 51 and a second motor shaft 52. The first motor shaft 51 is connected to the second fan 4, and the second motor shaft 52 is connected to the first fan 9 to drive the first fan 9 and the second fan 4 to rotate synchronously.

[0275] In the above air conditioner indoor unit, as Figure 98 and Figure 99 、 Figure 102 and Figure 103 shown, the second fan 4 is used for introducing the indoor air into the inside of the housing 1. After the indoor air is heat-exchanged by the heat exchanger to form air-conditioning air, the air-conditioning air flows from the air outlet 15 of the housing to the room to meet the cooling or heating needs of the user. The second fan 4 is installed in the first installation cavity 14 and is located on the side of the heat exchanger away from the air inlet 11 of the housing. A support shaft 41 is provided at one end of the second fan 4 far from the drive motor 5. The support shaft 41 is connected with a bearing 7 to support the rotation of the second fan 4. It should be noted that the second fan 4 is a cross-flow fan.

[0276] In some embodiments, the second blower 4 extends along the length direction of the housing 1. One end of the second blower 4 connected to the drive motor 5 is provided with a blower shaft sleeve 42. The blower shaft sleeve 42 is provided with a communication hole, and the rotating shaft of the drive motor 5 extends into the communication hole to connect the drive motor 5 to the second blower 4.

[0277] In the above air conditioner indoor unit, a bearing 7 is sleeved on the outer periphery of the support shaft 41 to support the rotation of the support shaft 41; the bearing 7 is provided with a bearing cavity 714 for the support shaft 41 to pass through, and the support shaft 41 is arranged in the bearing cavity 714 so that the bearing 7 provides support for the rotation of the support shaft 41; specifically, as Figures 104 - 106 shown, the bearing 7 includes a bearing sleeve 71 and bearing balls 72, and the bearing cavity 714 penetrates through the bearing sleeve 71 and the bearing balls 72; the support shaft 41 passes through the bearing cavity 714; it should be noted that an installation space 715 is provided in the bearing sleeve 71, and the installation space 715 communicates with the bearing cavity 714 and is close to the second blower 4; the bearing balls 72 are arranged in the installation space 715 and are connected to the support shaft 41.

[0278] In some embodiments, one end of the bearing sleeve 71 away from the second blower 4 is provided with a strengthening portion 716, and the bearing cavity 714 extends along the axial direction of the support shaft 41 to the strengthening portion 716 to increase the contact area between the support shaft 41 and the bearing sleeve 71; it should be noted that one end of the strengthening portion 716 away from the bearing sleeve 71 is a closed end.

[0279] In the above air conditioner indoor unit, a bearing seat 8 is used to install the bearing 7 so that the bearing 7 can better support the support shaft 41; the bearing seat 8 is arranged outside the bearing 7 and is installed on the housing 1. Specifically, as Figures 120 - 122 shown, a first through cavity 84 is provided inside the bearing seat 8 for installing the bearing 7. The bearing 7 is arranged in the first through cavity 84, and the outer periphery of the bearing sleeve 71 is in close fit with the inner wall of the first through cavity 84 to connect the bearing 7 to the bearing seat 8; the first through cavity 84 extends along the length direction of the housing 1 so that the support shaft 41 can extend into the first through cavity 84 to be connected to the bearing 7 and pass through the first through cavity 84 to be connected to the second blower 4. It should be noted that a connecting platform is provided in the first through cavity 84, which is arranged in the first through cavity 84 and along the circumferential direction of the first through cavity 84; the bearing sleeve 71 is provided with a connecting block 711, which is arranged on the outer periphery of the bearing sleeve 71 and along the circumferential direction of the bearing sleeve 71, and the connecting block 711 abuts against the connecting platform so that the bearing sleeve 71 is tightly assembled with the inner wall of the first through cavity 84, thereby fixedly connecting the bearing 7 to the bearing seat 8; it should also be noted that the connecting platform is connected to the inner wall of the first through cavity 84, and the inner diameter dimension of the connecting platform gradually decreases along the axial direction of the first through cavity 84 from the direction close to the second blower 4, so that the closer the bearing sleeve 71 is to the second blower 4, the greater the mutual extrusion force between the bearing sleeve 71 and the inner wall of the first through cavity 84, which is convenient for connecting the bearing 7 to the bearing seat 8.

[0280] In some embodiments, the bearing housing 8 is provided with a stop block 85. The stop block 85 is located at the opening of the first through cavity 84 facing the second blower 4. The stop block 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from detaching from the first through cavity 84.

[0281] In some embodiments, the bearing housing 8 is provided with a positioning block 86. The positioning block 86 is located within the first through cavity 84; the bearing sleeve 71 is provided with a positioning space 712 corresponding to the positioning block 86. The positioning space 712 is located on the outer periphery of the bearing sleeve 71; the positioning block 86 is disposed within the positioning space 712 to position the installation position of the bearing 7 within the first through cavity 84.

[0282] In some embodiments, buffer ribs 713 are provided on the outer periphery of the bearing sleeve 71. The buffer ribs 713 protrude from the outer surface of the bearing sleeve 71 and abut against the inner wall of the first through cavity 84. On the one hand, the buffer ribs 713 can facilitate the installation of the bearing sleeve 71 into the first through cavity 84. On the other hand, they can also increase the firmness of the abutment between the bearing sleeve 71 and the inner wall of the first through cavity 84, and can also protect the portion of the bearing sleeve 71 in contact with the inner wall of the first through cavity 84.

[0283] In some embodiments, the bearing housing 8 is provided with an extension portion 83. The second mounting portion 18 is provided with a receiving cavity. The opening of the receiving cavity faces the top of the housing 1. The extension portion 83 is disposed within the receiving cavity to position the connection position between the bearing housing 8 and the second mounting portion 18; it should be noted that the bearing housing 8 is further provided with a clamping portion 82. The clamping portion 82 is located at the extension portion 83; the second mounting portion 18 is provided with a clamping space. The clamping space communicates with the receiving cavity. The clamping portion 82 is disposed within the clamping space to fixedly connect the bearing housing 8 to the second mounting portion 18, thereby mounting the bearing housing 8 within the housing 1. In some embodiments, as Figure 120 shown, the bearing housing 8 is further provided with a support portion 81. The receiving cavity is further provided with a support platform. The support portion 81 is located on top of the support platform to support the bearing housing 8; it should be noted that the support portion 81 is configured to be two. The two support portions 81 are symmetrically arranged along the thickness direction of the housing 1; and the support platform is also configured to be two. The two support platforms are arranged in one-to-one correspondence with the two support portions 81.

[0284] In the above air conditioner indoor unit, as Figure 112 and Figure 113As shown, the fresh air module is used to introduce outdoor fresh air into the room; the fresh air module includes a ventilation volute 3 and a first fan 9. The ventilation volute 3 is installed in the third installation cavity 16. A fresh air duct is defined inside the ventilation volute 3. The first fan 9 is installed inside the fresh air duct. The fresh air duct is provided with a second air inlet 37 and a second air outlet 351. The second air inlet 37 communicates with the outside, and the second air outlet 351 communicates with the ventilation opening 12. By operating the first fan 9, the outdoor fresh air is introduced into the fresh air duct through the second air inlet 37, passes through the second air outlet 351, and flows into the room through the ventilation opening 12. The first fan 9 is provided with a fan shaft 96. The fan shaft 96 and the second motor shaft 52 are connected to each other through a coupling 6 to jointly form a second connecting shaft. The coupling 6 belongs to the prior art in this field and will not be elaborated here. It should be noted that the fresh air duct is provided with a reserved hole 312 so that the fan shaft 96 passes through the reserved hole 312 and is arranged outside the fresh air duct and connected to the second motor shaft 52, thereby connecting the first fan 9 with the drive motor 5.

[0285] As Figure 114As shown, the first fan 9 includes a hub 91 and a plurality of fan blades 92; the plurality of fan blades 92 are sequentially arranged at intervals along the circumferential direction of the hub 91 and are fixedly connected to the hub 91; the plurality of fan blades 92 are distributed along the circumferential direction of the hub 91 to form a circular base, and the plurality of fan blades 92 surround to form a fan cavity. The fan cavity is located in the middle part of the circular base, and the fan cavity is located on the side where the plurality of fan blades 92 are close to each other. The plurality of fan blades 92 are connected into one body through a connecting part 93 on the side facing away from the cavity, so that the plurality of fan blades 92 can work synchronously, so that the fan blades 92 as a whole can achieve the best working effect; there is a gap between adjacent fan blades 92, and the gap between adjacent fan blades 92 communicates with the fan cavity to form a fan air outlet. The fan air outlet communicates with the fan cavity and the second air outlet 351, so that the air flow in the fan cavity can flow to the second air outlet 351; the fan cavity is also provided with a fan air inlet, and the fan air inlet faces the first grille 322. The indoor air in the fresh air cavity 321 enters the fan cavity from the fan air inlet, and then flows out of the fan cavity from the fan air outlet; one end of the plurality of fan blades 92 facing away from the fan air inlet is connected to the hub 91 and connected into one body through the hub 91 to increase the firmness of the connection between the plurality of fan blades 92; the connecting part 93 is located at one end of the fan blade 92 facing the air inlet, and the connecting part 93 and the hub 91 are respectively arranged at both ends of the fan blade 92 to ensure the firmness of the connection between the plurality of fan blades 92, so that the fan blades 92 as a whole can achieve the maximum working effect; the connecting part 93 is only connected to the side of the plurality of fan blades 92 facing away from the cavity. The purpose is to prevent the area of the connecting part 93 from being too large and affecting the working effect of the fan blade 92. Moreover, the connecting part 93 is integrally injection-molded with the fan blade 92. Reducing the area of the connecting part 93 can reduce the overall weight of the first fan 9; it should be noted that the side of the hub 91 facing away from the fan blade 92 faces the first volute 31 and has a certain gap with the first volute 31 along the length direction of the casing 1 to ensure the reliability of the operation of the first fan 9; it should also be noted that the first fan 9 is a centrifugal fan.

[0286] In some embodiments, the first fan 9 is provided with a connecting cavity 94, a fan shaft 96 is arranged in the connecting cavity 94, and a fixing part 95 is arranged in the connecting cavity 94. One end of the fan shaft 96 far from the support shaft 41 is connected to the fixing part 95.

[0287] In some other embodiments, the fixing part 95 and the inner wall of the connecting cavity 94 facing the opening of the connecting cavity 94 jointly define a receiving cavity, and one end of the fan shaft 96 far from the support shaft 41 extends into the receiving cavity to increase the connection strength between the fan shaft 96 and the fixing part 95.

[0288] In some embodiments, the connecting cavity 94 is formed by protruding from the middle part of the hub 91 in a direction away from the reserved hole 312, and the opening of the connecting cavity 94 faces the reserved hole 312.

[0289] like Figures 111 - 113 , Figure 114 As shown, the ventilation volute 3 includes a first volute 31, a second volute 32 and a ventilation shell 33; the first volute 31 and the second volute 32 are arranged opposite to each other and jointly form a fresh air chamber 321, and the first fan 9 is installed in the fresh air chamber 321; the ventilation shell 33 and the second volute 32 are arranged opposite to each other on the side away from the first volute 31 to jointly form a purification chamber 331; the second volute 32 is provided with a first grille 322, and the first grille 322 is located at the connection between the purification chamber 331 and the fresh air chamber 321, so that the purification chamber 331 and the fresh air chamber 321 are connected to each other; a purification module 34 is provided in the purification chamber 331 to purify the outdoor fresh air flowing to the purification chamber 331; the second air inlet The first air inlet 37 is opened in the purification chamber 331, and the second air outlet 351 is opened in the fresh air cavity 321, so that the purification module 34 purifies the outdoor fresh air entering the purification chamber 331 through the second air inlet 37, and the air in the purification chamber 331 purified by the purification module 34 enters the fresh air cavity 321 through the first grille 322, and flows into the room through the second air outlet 351 from the vent 12; it should be noted that the fresh air cavity 321 and the purification chamber 331 together form a fresh air duct; it should also be noted that the reserved hole 312 is opened in the first volute 31, and the opening of the reserved hole 312 is set toward the drive motor 5, and the reserved hole 312 is connected to the fresh air cavity 321.

[0290] In some embodiments, Figure 118 As shown, a restraining portion 311 is provided on the side of the first volute 31 away from the fresh air chamber 321 , and the restraining portion 311 defines a restraining chamber 3111 , and one end of the coupling 6 connected to the fan shaft 96 is provided in the restraining chamber 3111 to restrain the position of the coupling 6 .

[0291] In some embodiments, the purification module 34 includes a purification frame and a filter net, which is arranged on the purification frame. The filter net is used to filter and purify outdoor fresh air to prevent impurities and flocs mixed in the outdoor fresh air from entering the room. It should be noted that the purification chamber 331 is provided with a socket, so that the purification module 34 can be extended into the purification chamber 331 through the socket, thereby realizing the installation of the purification module 34. When the purification module 34 needs to be disassembled, the purification module 34 can be unplugged from the socket. By detachably installing the purification module 34 in the purification chamber 331, it is convenient for users to disassemble, clean and replace the filter net by themselves. In this embodiment, the disassembly and installation method of the purification module 34 is simple and easy to operate.

[0292] In some embodiments, the ventilation volute 3 is provided with a flow guiding member 35. The flow guiding member 35 is connected to the first volute 31 and the second volute 31. The flow guiding member 35 is defined to form a channel communicating with the fresh air chamber 321, so that the outdoor fresh air in the fresh air chamber 321 flows from the ventilation opening 12 to the indoor through the channel in the flow guiding member 35. It should be noted that the second air outlet 351 is opened at one end of the flow guiding member 35 away from the ventilation volute 3 and is arranged facing the ventilation opening 12, so that the channel in the flow guiding member 35 communicates with the ventilation opening 12.

[0293] Since the driving motor 5 drives the second fan 4 and the first fan 9 to operate simultaneously, and the first fan 9 cannot stop working alone, when the air conditioner indoor unit works, the fresh air function cannot be turned off. Therefore, the above air conditioner indoor unit is provided with a switch assembly 36 at the second air inlet 37, and the switch assembly 36 is used to open or close the second air inlet 37 to control whether the outdoor fresh air is introduced into the purification chamber 331, so as to control the opening and closing of the fresh air function. When the air conditioner indoor unit is working and the fresh air function needs to be turned off, closing the second air inlet 37 can prevent the outdoor fresh air from being introduced into the purification chamber 331, thereby preventing the outdoor fresh air from flowing to the indoor through the second air outlet 351. When the fresh air function needs to be turned on, opening the second air inlet 37 can introduce the outdoor fresh air into the purification chamber 331 from the second air inlet 37, so that the outdoor fresh air flows to the indoor through the second air outlet 351. It should be noted that closing the second air inlet 37 by the switch assembly 36 can also prevent the fresh air from flowing back into the indoor when the air conditioner indoor unit is turned off, reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience.

[0294] Specifically, as Figure 112 shown, the switch assembly 36 includes a baffle 361, a baffle motor 363, a gear and a rack 362. The baffle 361 is arranged at the second air outlet 351 in an openable and closable manner. The baffle motor 363 is installed on the ventilation housing 33. The rotating shaft of the baffle motor 363 is connected with a gear. The baffle 361 is provided with a rack 362, and the gear meshes with the rack 362. When the fresh air function is turned on, the baffle motor 363 drives the gear to drive the rack 362 to move, and then drives the baffle 361 to move linearly to open the second air inlet 37, so that the outdoor fresh air can enter the indoor. When the fresh air function is turned off, the baffle motor 363 drives the gear to drive the rack 362 to move, and the baffle 361 moves linearly to close the second air inlet 37, so as to prevent the outdoor fresh air from entering the indoor. It should be noted that closing the second air inlet 37 by the baffle 361 can also prevent the fresh air from flowing back into the indoor when the air conditioner indoor unit is turned off, reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience.

[0295] When the first blower 9 rotates, noise and vibration are inevitably generated. The first blower 9 is installed in the fresh air chamber 321 within the ventilation volute 3. Therefore, the ventilation volute 3 can reduce the transmission of noise to the indoor environment. Since the ventilation volute 3 has a split structure, the fresh air chamber 321 is jointly defined by the splicing of the first volute 31 and the second volute 32. A first splicing seam is formed at the splicing location of the first volute 31 and the second volute 32. In the prior art, the gap of the first splicing seam is relatively large, resulting in the easy leakage of noise in the fresh air chamber 321 to the indoor environment through the first splicing seam. At the same time, the outdoor fresh air flows into the indoor environment through the fresh air chamber 321. Due to the existence of the first splicing seam, the fresh air in the fresh air chamber 321 is also prone to leakage to the indoor environment through the first splicing seam. Although designing the ventilation volute 3 as a split structure allows the first blower to be installed in the fresh air chamber 321 and also facilitates production and manufacturing, the split ventilation volute 3 not only easily causes a large amount of noise to be transmitted to the indoor environment during the operation of the air conditioner indoor unit, but also leads to the leakage of the fresh air introduced into the fresh air chamber 321, reducing the amount of fresh air introduced into the indoor environment. In view of this, the above-mentioned air conditioner indoor unit is provided with a first connecting portion 313 on the first volute 31 and a second connecting portion 323 on the side of the second volute 32 facing the first volute 31. The first connecting portion 313 and the second connecting portion 323 are connected to each other and jointly define a first transition chamber 38 to seal the first splicing seam, thereby preventing the fresh air and / or noise in the fresh air chamber 321 from easily leaking to the indoor environment through the first splicing seam.

[0296] Specifically, as Figures 115 - 116 , Figures 118 - 120 shown, the first connecting portion 313 is provided on the side of the first volute 31 facing the second volute 32 and is arranged along the outer edge of the first volute 31. The second connecting portion 323 is provided on the side of the second volute 32 facing the first volute 31 and is arranged along the outer edge of the second volute 32. The second connecting portion 323 and the first connecting portion 313 are connected to each other and jointly define a first transition chamber 38. The first transition chamber 38 is in communication with the first splicing seam and extends along the trajectory of the first splicing seam to seal the first splicing seam. When the fresh air and / or noise in the fresh air chamber 321 leaks through the first splicing seam, the fresh air and / or noise enters the first transition chamber 38 and is accommodated in the first transition chamber 38, thereby preventing the fresh air and / or noise from entering the indoor environment.

[0297] In some embodiments, the first connecting portion 313 is provided with a first cavity 3131 with an opening facing the second connecting portion 323, so that the cross-section of the first connecting portion 313 is U-shaped; the second connecting portion 323 extends into the first cavity 3131 to close the opening of the first cavity 3131, thereby jointly defining a closed first transition chamber 38 by the first connecting portion 313 and the second connecting portion 323.

[0298] In some other embodiments, the second connecting portion 323 is provided with a second cavity 3231 having an opening facing the first connecting portion 313, so that the cross-section of the second connecting portion 323 is also U-shaped; the second cavity 3231 is located within the first cavity 3131 and communicates with the first cavity 3131, so that the first cavity 3131 and the second cavity 3231 communicate to form a closed first transition cavity 38.

[0299] In some other embodiments, the first connecting portion 313 extends into the second cavity 3231, so that the first connecting portion 313 and the second connecting portion 323 jointly define a closed first transition cavity 38.

[0300] In some other embodiments, the first connecting portion 313 and the second connecting portion 323 are respectively located outside the fresh air cavity 321, so that the first transition cavity 38 is located outside the fresh air cavity 321.

[0301] It should be noted that although the first transition cavity 38 is formed by the mutual connection of the first connecting portion 313 and the second connecting portion 323, the connection seam formed by the first connecting portion 313 and the second connecting portion 323 is not arranged in the same vertical plane as the first splicing seam. Therefore, the first transition cavity 38 can effectively seal the first splicing seam.

[0302] Since the purification chamber 331 communicates with the fresh air cavity 321 through the first grille 322, therefore, the outdoor fresh air and / or noise in the fresh air cavity 321 may also enter the purification chamber 331. And the purification chamber 331 is formed by the mutual splicing and joint definition of the second volute 32 and the ventilation housing 33. Therefore, a second splicing seam is formed at the splicing portion of the second volute 32 and the ventilation housing 33, and the gap of the second splicing seam is also large, resulting in the fresh air and / or noise in the purification chamber 331 being easily leaked from the second splicing seam. The above indoor air conditioner is provided with a third connecting portion 324 on the side of the second volute 32 facing the ventilation housing 33 and a fourth connecting portion 332 on the side of the ventilation housing 33 facing the second volute 32, and the third connecting portion and the fourth connecting portion 332 are mutually connected and jointly define a second transition cavity 39 to seal the second splicing seam, thereby preventing the fresh air and / or noise in the purification chamber 331 from being easily leaked into the room from the second splicing seam.

[0303] Specifically, such as Figure 115 、 Figure 117 、 Figure 121 and Figure 122As shown, the third connecting portion 324 is provided on one side of the second volute 32 facing the ventilation housing 33 and is arranged along the outer edge of the second volute 32. The fourth connecting portion 332 is provided on one side of the ventilation housing 33 facing the second volute 32 and is arranged along the outer edge of the ventilation housing 33. The fourth connecting portion 332 is connected to the third connecting portion 324 and together they define a second transition cavity 39. The second transition cavity 39 communicates with the second splicing seam and extends along the trajectory of the second splicing seam to seal the second splicing seam. When fresh air and / or noise in the purification chamber 331 leaks from the third connecting seam, the fresh air and / or noise enters the second transition cavity 39 and is accommodated in the second transition cavity 39, thereby preventing the fresh air and / or noise from entering the room.

[0304] In some embodiments, the third connecting portion 324 is provided with a third cavity 3241 with an opening facing the fourth connecting portion 332, so that the cross-section of the third connecting portion 324 is U-shaped; the fourth connecting portion 332 extends into the third cavity 3241 to close the opening of the third cavity 3241, so that the third connecting portion 324 and the fourth connecting portion 332 together define a closed second transition cavity 39.

[0305] In other embodiments, the fourth connecting portion 332 is provided with a fourth cavity 3321 with an opening facing the third connecting portion 324, so that the cross-section of the fourth connecting portion 332 is also U-shaped; the fourth cavity 3321 is located in the third cavity 3241 and communicates with the third cavity 3241, so that the third cavity 3241 and the fourth cavity 3321 communicate to form a closed second transition cavity 39.

[0306] In still other embodiments, the third connecting portion 324 extends into the fourth cavity 3321, so that the third connecting portion 324 and the fourth connecting portion 332 together define a closed second transition cavity 39.

[0307] In other embodiments, the third connecting portion 324 and the fourth connecting portion 332 are respectively located outside the purification chamber 331, so that the second transition cavity 39 is located outside the purification chamber 331.

[0308] It should be noted that although the second transition cavity 39 is formed by the mutual connection of the third connecting portion 324 and the fourth connecting portion 332, the connecting seam formed by the third connecting portion 324 and the fourth connecting portion 332 is not arranged in the same vertical plane as the second splicing seam. Therefore, the second transition cavity 39 can effectively seal the second splicing seam.

[0309] The working principle of the above air conditioner indoor unit is as follows: The driving motor 5 drives the second fan 4 and the first fan 9 to rotate synchronously. Through the operation of the first fan 9, outdoor air is introduced into the purification chamber 331 from the second air inlet 37, and after being purified by the purification module 34, it enters the fresh air chamber 321 through the first grille 322. Most of the outdoor fresh air in the fresh air chamber 321 flows into the room through the second air outlet 351 and the ventilation opening 12; some outdoor fresh air may leak into the first transition chamber 38 from the first splicing seam; the noise generated when the first fan 9 works will also leak into the first transition chamber 38 from the first splicing seam; after the outdoor fresh air and / or noise enter the first transition chamber 38, they are accommodated by the first transition chamber 38. Since there is a lack of power to drive the flow of outdoor fresh air and / or noise in the first transition chamber 38, the outdoor fresh air and / or noise move slowly in the first transition chamber 38. Therefore, it is not easy for the outdoor fresh air and / or noise in the first transition chamber 38 to leak again through the connection seam formed by the first connecting part 313 and the second connecting part 323. Moreover, the trajectory of the connection seam formed by the first connecting part 313 and the second connecting part 323 is not in the same plane, and the trajectory of the connection seam formed by the first connecting part 313 and the second connecting part 323 is complex, which is not easy to cause the leakage of outdoor fresh air and / or noise; similarly, the outdoor fresh air in the purification chamber 331 will leak into the second transition chamber 39 from the second splicing seam and be accommodated by the second transition chamber 39 and is not easy to leak.

[0310] The above air conditioner indoor unit sets the first connecting part 313 on the first volute 31 and the second connecting part 323 on the second volute 32, so that the first connecting part 313 and the second connecting part 323 jointly define and form the first transition chamber 38, and uses the first transition chamber 38 to seal the first splicing seam formed by the splicing of the first volute 31 and the second volute 32, so that the noise and / or fresh air leaking from the first splicing seam in the fresh air chamber 321 enter the first transition chamber 38, and the leaked noise and / or fresh air are accommodated by the first transition chamber 38, thereby preventing the noise and / or fresh air from being transmitted into the room. The above air conditioner indoor unit can not only reduce the noise transmitted into the room when the first fan works, but also allow a larger fresh air volume to flow into the room.

[0311] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A wall-mounted air conditioner, characterized in that, it includes: A housing, within which a first inner cavity and a second inner cavity are provided along the length direction; a first air inlet is opened at the top of the housing, and a first air outlet is opened at the bottom of the front side of the housing; An indoor heat exchanger, which is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through it to form a heat exchange air flow; A second fan, which is arranged in the first inner cavity and is arranged below the indoor heat exchanger; the indoor air flow enters the housing through the first air inlet under the action of the second fan, and is heat-exchanged by the indoor heat exchanger and then output to the indoor through the first air outlet; A ventilation volute, which is arranged in the second inner cavity, and a second air inlet and a second air outlet are opened on the ventilation volute; A first fan, which is arranged in the ventilation volute; A driving motor, which drives the second fan and the first fan to rotate synchronously; A first air deflector, which is arranged at the first air outlet and is arranged along the length direction of the first air outlet; A second air deflector, which is arranged between the first air deflector and the indoor heat exchanger and is arranged along the length direction of the first air outlet; The second air outlet is close to the first air inlet; A baffle, which is arranged at the second air inlet and is used to open or close the second air inlet; A controller, which is configured to, when receiving a control signal to enter the fresh air mode, control the first air deflector to flip a first preset angle from the initial position, and control the second air deflector to flip a second preset angle from the initial position; the second preset angle is greater than the first preset angle; when receiving a control signal to exit the fresh air mode, control the driving motor to decelerate and stop, and after waiting for the driving motor to completely stop, control the baffle to close the second air inlet; The air flow passing through the first air outlet is guided to the first air deflector by the second air deflector, and the first air deflector guides the air flow to the top of the housing.

2. The wall-mounted air conditioner according to claim 1, characterized in that, The value of the second preset angle is twice the value of the first preset angle.

3. The wall-mounted air conditioner according to claim 1, characterized in that, A baffle is arranged at the second air inlet, and the baffle is used to close the second air inlet; The controller is configured to, when entering the fresh air mode, control the driving motor to drive the second fan and the first fan to rotate synchronously, and control the baffle to open the second air inlet.

4. The wall-mounted air conditioner according to claim 1, characterized in that, When the first air deflector is in the initial position, the first air outlet is closed by the first air deflector.

5. The wall-mounted air conditioner according to claim 1, characterized in that, It further includes an outdoor temperature sensor, which is used to detect the outdoor temperature; The controller is configured to, when receiving a control signal to enter the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value, and when the outdoor temperature is greater than the preset temperature value, turn on the drive motor, control the baffle to open the second air inlet, control the first air deflector to flip a first preset angle from the initial position, and control the second air deflector to flip a second preset angle from the initial position.

6. A wall-mounted air conditioner, characterized in that, it includes: A housing, within which a first inner cavity and a second inner cavity are provided along the length direction; a first air inlet is opened at the top of the housing, and a first air outlet is opened at the bottom of the front side of the housing; An indoor heat exchanger, which is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange air flow; A second fan, which is arranged in the first inner cavity and is arranged below the indoor heat exchanger; the indoor air flow enters the housing through the first air inlet under the action of the second fan, and is output to the indoor through the first air outlet after being heat-exchanged by the indoor heat exchanger; A ventilation volute, which is arranged in the second inner cavity, and a second air inlet and a second air outlet are opened on the ventilation volute; A first fan, which is arranged in the ventilation volute; A drive motor, which drives the second fan and the first fan to rotate synchronously; A first air deflector, which is arranged at the first air outlet and is arranged along the length direction of the first air outlet; A first motor, which is arranged at the first air outlet and is used to drive the first air deflector to flip; A second air deflector, which is arranged between the first air deflector and the indoor heat exchanger and is arranged along the length direction of the first air outlet; A second motor, which is arranged at the first air outlet and is used to drive the second air deflector to flip; The second air outlet is close to the first air inlet; A baffle, which is arranged at the second air inlet and is used to open or close the second air inlet; A controller, which is configured to, when entering the fresh air mode, control the first motor to twist a third preset number of steps, and control the second motor to twist a fourth preset number of steps; the fourth preset number of steps is greater than the third preset number of steps; when receiving a control signal to exit the fresh air mode, control the drive motor to decelerate and stop, and after waiting for the drive motor to completely stop, control the baffle to close the second air inlet; The air flow passing through the first air outlet is guided by the second air deflector to the first air deflector, and the first air deflector guides the air flow to the top of the housing.

7. The wall-mounted air conditioner according to claim 6, characterized in that, The value of the fourth preset number of steps is twice the value of the third preset number of steps.

8. The wall-mounted air conditioner according to claim 6, characterized in that, The controller is configured to, when entering the fresh air mode, control the first motor to twist by a third preset number of steps, and after a preset time, further control the second motor to twist by a fourth preset number of steps.

9. The wall-mounted air conditioner according to claim 6, wherein, when the first motor is in the initial state, the first air outlet is closed by the first air deflector.

10. The wall-mounted air conditioner according to claim 6, wherein, it further includes an outdoor temperature sensor for detecting the outdoor temperature; the controller is configured to, when receiving a control signal to enter the fresh air mode, control the outdoor temperature sensor to detect the outdoor temperature, determine whether the outdoor temperature is greater than a preset temperature value, and when the outdoor temperature is greater than the preset temperature value, turn on the drive motor, control the baffle to open the second air inlet, control the first motor to twist by a third preset number of steps from the initial state, and control the second motor to twist by a fourth preset number of steps from the initial state.

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