Indoor unit of air conditioner

Abstract

The utility model relates to an air conditioner indoor unit which comprises a machine shell and an indoor heat exchanger. A first fan; the volute body comprises a first shell and a second shell, and the first shell at least comprises a second air outlet; the second shell is connected to the side, away from the first fan, of the first shell; a first fan; the first driving shaft is used for connecting the first fan and the second fan; a first motor; the ventilation shell at least comprises a second air inlet and a purification air inlet; a guide rail; the baffle plate is matched with the guide rail to slide along the guide rail; when the baffle slides to abut against the first baffle, the purification air inlet is separated from the second air outlet, and the second air inlet is communicated with the second air outlet; and when the baffle slides to abut against the second check block, the purification air inlet communicates with the second air outlet, and the second air inlet is separated from the second air outlet, so that when the second air inlet is closed, noise generated by rotation of the first draught fan is avoided.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning, and more particularly to an indoor unit of an air conditioner. Background Technology

[0002] The casing of the indoor unit of the air conditioner includes at least a first air inlet and a first air outlet that communicate with the indoor environment. Inside the casing, there is a first fan, a volute body, and a ventilation shell. The first fan is used to introduce indoor air into the casing through the first air inlet, and after heat exchange in the heat exchanger, the air flows into the room through the first air outlet.

[0003] A first fan is installed inside the volute body, and the volute body includes at least a second air outlet. The ventilation casing includes at least a second air inlet. The first fan rotates to draw fresh outdoor air into the volute body through the second air inlet, and then into the room through the second air outlet.

[0004] Currently, in some air conditioner indoor units, the first fan and the first motor are designed to be driven by the same first motor. The first motor can be a single-shaft motor, with its output shaft connected to the first fan. The first fan is then connected to the first drive shaft, and the first motor drives the first fan to rotate, thus making the first fan and the first motor rotate synchronously. Alternatively, the first motor can be a dual-shaft motor, with one motor shaft connected to the first fan and the other motor shaft connected to the first fan, thus making the first motor drive the first fan and the first motor to rotate.

[0005] When the baffle closes the second air inlet, the first fan will still rotate. Due to the closure of the second air inlet, the first fan will operate under overload, generating aerodynamic noise and affecting the user experience.

[0006] In view of the above, this application is hereby submitted. Utility Model Content

[0007] This utility model solves, to at least a certain extent, one of the technical problems in the related art.

[0008] Therefore, this application aims to provide an indoor air conditioning unit that avoids aerodynamic noise generated by the rotation of the first fan when the second air inlet is closed.

[0009] To achieve the above objectives, this utility model provides an indoor air conditioning unit, comprising:

[0010] The housing includes at least a first air inlet and a first air outlet, the first air inlet and the first air outlet extending along the length of the housing, respectively.

[0011] An indoor heat exchanger is disposed inside the casing;

[0012] A first fan is disposed inside the casing and located below the indoor heat exchanger; the first fan extends along the length of the casing; by operating the first fan, indoor air is introduced into the casing through the first air inlet, and after heat exchange by the indoor heat exchanger, it flows into the room through the first air outlet.

[0013] A volute body, disposed inside the housing and arranged along the length of the housing with the first fan, the volute body comprising:

[0014] The first casing includes at least a second air outlet;

[0015] The second housing is connected to the side of the first housing away from the first fan;

[0016] The first fan, which is located inside the volute body, is used to introduce fresh outdoor air into the room;

[0017] A first drive shaft is used to connect the first fan and the first fan, and the rotation axis of the first drive shaft is coaxial with the rotation axis of the first fan and the rotation axis of the first fan.

[0018] A first motor is connected to the end of the first fan that is away from the first fan. The first motor drives the first fan to rotate. The first fan is driven to rotate by the first drive shaft.

[0019] A ventilation housing is connected to the side of the second housing away from the first housing, and the ventilation housing includes at least a second air inlet and a purification air inlet;

[0020] A guide rail is disposed on the ventilation housing and / or the second housing;

[0021] A baffle plate that cooperates with the guide rail to slide along the guide rail;

[0022] The first block, the second block, and the third block are respectively disposed between the ventilation shell and the second shell, and the third block is located between the purification air inlet and the second air inlet;

[0023] When the baffle slides to abut against the first block, the third block abuts against the baffle, the purification air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet;

[0024] When the baffle slides to abut against the second stop, the third stop abuts against the baffle, the purification air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

[0025] In this application, when the user does not wish to introduce fresh air into the room but only wants to turn on the first fan to exchange heat with the indoor air, the baffle slides to close the second air inlet to prevent the introduction of fresh air into the room. At this time, the operation of the first fan drives it to rotate synchronously. Since the second air inlet is closed, the rotation of the first fan drives indoor air to enter the volute body through the purification air inlet. The indoor air entering the volute body is then discharged into the room through the second air outlet. This avoids the overload operation of the first fan when the second air inlet is closed by the baffle, thereby avoiding the aerodynamic noise problem that would occur when the first fan rotates.

[0026] In some embodiments of this application, the location of the baffle is defined as a first position, a second position, and a third position, and the baffle can slide sequentially from the first position to the second position and the third position along the guide rail;

[0027] When the baffle slides to the first position, the baffle abuts against the first block, the purification air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet;

[0028] When the baffle slides to the second position, the baffle abuts against the second block, the purification air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet;

[0029] When the baffle slides to the third position, the baffle abuts against the second block, the purification air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

[0030] In some embodiments of this application, when the baffle slides to the second position, the shortest distance between the second stop and the baffle is defined as the first distance.

[0031] When the baffle slides to the third position, the shortest distance between the second block and the baffle is defined as the second distance, and the first distance is less than the second distance.

[0032] In some embodiments of this application, the guide rail is provided with a first limiting part and a second limiting part. When the baffle slides to the first position, the baffle abuts against the first limiting part; when the baffle slides to the second position, the baffle abuts against the second limiting part.

[0033] In some embodiments of this application, the guide rail includes:

[0034] The first guide rail is disposed on the ventilation housing and is arc-shaped;

[0035] The second guide rail is disposed on the second shell and is arc-shaped. The first guide rail is disposed corresponding to the second guide rail, and the two opposite ends of the baffle are respectively inserted into the first guide rail and the second guide rail.

[0036] In some embodiments of this application, the first fan is provided with a shaft connection portion, the shaft connection portion is used to connect the first drive shaft, and the end of the first drive shaft away from the first fan is inserted into the interior of the shaft connection portion to connect the shaft connection portion.

[0037] In some embodiments of this application, the first housing is provided with a connection hole, the connection hole communicates with the interior of the first housing, and the opening of the connection hole faces the first fan; the first drive shaft passes through the connection hole and is connected to the shaft connection part.

[0038] In some embodiments of this application, a bearing is provided inside the housing, the first drive shaft cooperates with the bearing and passes through the bearing, the first drive shaft is movably connected to the bearing, and the bearing is used to support the rotation of the first drive shaft.

[0039] In some embodiments of this application, it also includes:

[0040] A second motor is mounted on the ventilation housing;

[0041] A gear, the rotating shaft of which is connected to the output shaft of the second motor;

[0042] The baffle includes a rack portion, which meshes with the gear;

[0043] The output shaft of the second motor rotates to drive the gear to rotate, and the gear meshes with the rack to drive the baffle to slide along the guide rail.

[0044] This application also provides an air conditioner indoor unit, including:

[0045] The housing includes at least a first air inlet and a first air outlet, the first air inlet and the first air outlet extending along the length of the housing, respectively.

[0046] An indoor heat exchanger is disposed inside the casing;

[0047] A first fan is disposed inside the casing and located below the indoor heat exchanger; the first fan extends along the length of the casing; by operating the first fan, indoor air is introduced into the casing through the first air inlet, and after heat exchange by the indoor heat exchanger, it flows into the room through the first air outlet.

[0048] A volute body, disposed inside the housing and arranged along the length of the housing with the first fan, the volute body comprising:

[0049] The first casing includes at least a second air outlet;

[0050] The second housing is connected to the side of the first housing away from the first fan;

[0051] The first fan, which is located inside the volute body, is used to introduce fresh outdoor air into the room;

[0052] A first motor is mounted on the housing; the first motor includes a first motor shaft and a second motor shaft, the first motor shaft and the second motor shaft are coaxially arranged, the first motor shaft is connected to the first fan, and the second motor shaft is connected to the first fan; the first motor is used to drive the first fan and the first fan to operate synchronously.

[0053] A ventilation housing is connected to the side of the second housing away from the first housing, and the ventilation housing includes at least a second air inlet and a purification air inlet;

[0054] A guide rail is disposed on the ventilation housing and / or the second housing;

[0055] A baffle plate that cooperates with the guide rail to slide along the guide rail;

[0056] The first block, the second block, and the third block are respectively disposed between the ventilation shell and the second shell, and the third block is located between the purification air inlet and the second air inlet;

[0057] When the baffle slides to abut against the first block, the third block abuts against the baffle, the purification air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet;

[0058] When the baffle slides to abut against the second stop, the third stop abuts against the baffle, the purification air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

[0059] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the overall structure of an air conditioner according to one embodiment of this application;

[0061] Figure 2This is a schematic diagram of the overall structure of an air conditioner indoor unit according to one embodiment of this application. Figure 1 ;

[0062] Figure 3 This is a schematic diagram of the overall structure of an air conditioner indoor unit according to one embodiment of this application. Figure 2 ;

[0063] Figure 4 This is a schematic diagram of the internal structure of an air conditioner indoor unit according to one embodiment of this application. Figure 1 ;

[0064] Figure 5 This is a schematic diagram of the installation position of the first motor of an air conditioner indoor unit according to one embodiment of this application;

[0065] Figure 6 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 1 ;

[0066] Figure 7 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 2 ;

[0067] Figure 8 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 3 ;

[0068] Figure 9 This is a schematic diagram of the internal structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 1 ;

[0069] Figure 10 This is a side view of the fresh air module of an air conditioning indoor unit according to one embodiment of this application;

[0070] Figure 11 yes Figure 10 Sectional view along the middle AA direction;

[0071] Figure 12 yes Figure 10 Axonometric sectional view along the AA direction;

[0072] Figure 13 This is a schematic diagram of the internal structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 1 ;

[0073] Figure 14 This is a schematic diagram of the installation position of the baffle of an air conditioner indoor unit according to one embodiment of this application. Figure 1 ;

[0074] Figure 15This is a schematic diagram of the internal structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 1 ;

[0075] Figure 16 This is a schematic diagram of the internal structure of the ventilation housing of an air conditioning indoor unit according to one embodiment of this application;

[0076] Figure 17 This is a schematic diagram of the baffle of an air conditioner indoor unit in a first position according to one embodiment of this application;

[0077] Figure 18 This is a schematic diagram of the baffle of the indoor unit of an air conditioner in the second position according to one embodiment of this application;

[0078] Figure 19 This is a schematic diagram of the baffle of an air conditioner indoor unit in the third position according to one embodiment of this application;

[0079] Figure 20 This is a schematic diagram of the first gap when the baffle of the indoor unit of an air conditioner is in the second position according to one embodiment of this application;

[0080] Figure 21 This is a schematic diagram of the second spacing when the baffle of the indoor unit of an air conditioner is in the third position according to one embodiment of this application;

[0081] Figure 22 This is a schematic diagram of the connection structure of the first fan and the first fan of the indoor unit of an air conditioner according to one embodiment of this application. Figure 1 ;

[0082] Figure 23 This is a schematic diagram of the connection structure of the first fan and the first fan of the indoor unit of an air conditioner according to one embodiment of this application. Figure 2 ;

[0083] Figure 24 This is a schematic diagram of the bearing structure of an air conditioner indoor unit according to one embodiment of this application;

[0084] Figure 25 This is a schematic diagram of the bearing ball structure of an air conditioner indoor unit according to one embodiment of this application;

[0085] Figure 26 This is a schematic diagram of the internal structure of the bearing of an air conditioner indoor unit according to one embodiment of this application;

[0086] Figure 27 This is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of this application;

[0087] Figure 28 This is a front view of a wall-mounted air conditioner according to an embodiment of this application;

[0088] Figure 29 This is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0089] Figure 30 This is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0090] Figure 31 This is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0091] Figure 32 yes Figure 31 Enlarged view of section A;

[0092] Figure 33 This is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0093] Figure 34 This is a cross-sectional view along direction AA in the diagram;

[0094] Figure 35 This is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0095] Figure 36 yes Figure 35 Cross-sectional view along the BB direction;

[0096] Figure 37 This is a cross-sectional view of the volute body of a wall-mounted air conditioner according to an embodiment of this application;

[0097] Figure 38 This is an exploded view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0098] Figure 39 This is an exploded view of the volute body of a wall-mounted air conditioner according to an embodiment of this application;

[0099] Figure 40 This is an exploded view of the volute body of a wall-mounted air conditioner according to an embodiment of this application;

[0100] Figure 41 This is a schematic diagram of the structure of the volute body of a wall-mounted air conditioner according to an embodiment of this application;

[0101] Figure 42 This is a side view of the volute body of a wall-mounted air conditioner according to an embodiment of this application;

[0102] Figure 43 This is a structural schematic diagram of the first fan of a wall-mounted air conditioner according to an embodiment of this application;

[0103] Figure 44This is a schematic diagram of the overall structure of an air conditioner according to one embodiment of this application;

[0104] Figure 45 This is a schematic diagram of the overall structure of an air conditioner indoor unit according to one embodiment of this application. Figure 1 ;

[0105] Figure 46 This is a schematic diagram of the overall structure of an air conditioner indoor unit according to one embodiment of this application. Figure 2 ;

[0106] Figure 47 This is a schematic diagram of the internal structure of an air conditioner indoor unit according to one embodiment of this application. Figure 1 ;

[0107] Figure 48 This is a schematic diagram of the internal structure of an air conditioner indoor unit according to one embodiment of this application. Figure 2 ;

[0108] Figure 49 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 1 ;

[0109] Figure 50 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 2 ;

[0110] Figure 51 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 3 ;

[0111] Figure 52 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 4 ;

[0112] Figure 53 This is a schematic diagram of the structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application. Figure 5 ;

[0113] Figure 54 yes Figure 53 Sectional view along the AA direction Figure 1 ;

[0114] Figure 55 yes Figure 53 Sectional view along the AA direction Figure 2 ;

[0115] Figure 56 This is a schematic diagram showing the disassembled structure of the fresh air module of an air conditioning indoor unit according to one embodiment of this application;

[0116] Figure 57 This is a schematic diagram of the baffle installation position of an air conditioner indoor unit according to one embodiment of this application;

[0117] Figure 58 This is a schematic diagram of the ventilation housing of an air conditioning indoor unit according to one embodiment of this application;

[0118] Figure 59 This is a schematic diagram of the structural installation of the purification module of an air conditioner indoor unit according to one embodiment of this application;

[0119] Figure 60 This is a schematic diagram of the structure of the air conditioner indoor unit purification module according to one embodiment of this application;

[0120] Figure 61 This is a schematic diagram of the connection structure of the first fan and the first fan of the indoor unit of an air conditioner according to one embodiment of this application. Figure 1 ;

[0121] Figure 62 This is a schematic diagram of the connection structure of the first fan and the first fan of the indoor unit of an air conditioner according to one embodiment of this application. Figure 2 ;

[0122] Figure 63 This is a schematic diagram of the bearing structure of an air conditioner indoor unit according to one embodiment of this application;

[0123] Figure 64 This is a schematic diagram of the bearing ball structure of an air conditioner indoor unit according to one embodiment of this application;

[0124] Figure 65 This is a schematic diagram of the internal structure of the bearing of an air conditioner indoor unit according to one embodiment of this application;

[0125] Figure 66 This is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of this application;

[0126] Figure 67 This is a front view of a wall-mounted air conditioner according to an embodiment of this application;

[0127] Figure 68 This is a side view of a wall-mounted air conditioner according to an embodiment of this application;

[0128] Figure 69 This is a top view of a wall-mounted air conditioner according to an embodiment of this application;

[0129] Figure 70 This is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0130] Figure 71This is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0131] Figure 72 This is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0132] Figure 73 This is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0133] Figure 74 This is a bottom view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0134] Figure 75 This is a schematic diagram of the overall structure of the volute body portion according to an embodiment of this application;

[0135] Figure 76 This is a schematic diagram of the overall structure of the volute body portion according to an embodiment of this application;

[0136] Figure 77 This is a side view of the volute body portion according to an embodiment of this application;

[0137] Figure 78 This is a front view of the volute body portion according to an embodiment of this application;

[0138] Figure 79 This is a cross-sectional view of the volute body portion according to an embodiment of this application;

[0139] Figure 80 This is an exploded view of the volute body portion according to an embodiment of this application;

[0140] Figure 81 This is an exploded view of the volute body portion according to an embodiment of this application;

[0141] Figure 82 This is an exploded view of the volute body portion according to an embodiment of this application;

[0142] Figure 83 This is an exploded view of the volute body portion according to an embodiment of this application;

[0143] Figure 84 This is an exploded view of the volute body portion according to an embodiment of this application;

[0144] Figure 85 This is an exploded view of the volute body portion according to an embodiment of this application;

[0145] Figure 86 This is a flowchart illustrating the operation of a wall-mounted air conditioner according to an embodiment of this application.

[0146] Figure 87 This is a flowchart illustrating the operation of a wall-mounted air conditioner according to an embodiment of this application.

[0147] Figure 88 This is a flowchart illustrating the operation of a wall-mounted air conditioner according to an embodiment of this application.

[0148] Figure 89 This is an exploded view of the volute body portion according to an embodiment of this application;

[0149] Figure 90 This is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of this application;

[0150] Figure 91 This is a front view of a wall-mounted air conditioner according to an embodiment of this application;

[0151] Figure 92 This is a side view of a wall-mounted air conditioner according to an embodiment of this application;

[0152] Figure 93 This is a schematic diagram of the overall structure of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0153] Figure 94 This is a bottom view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0154] Figure 95 This is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of this application;

[0155] Figure 96 This is a schematic diagram of the overall structure of the volute body of a wall-mounted air conditioner according to an embodiment of this application.

[0156] Figure 97 This is a bottom view of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application;

[0157] Figure 98 This is an exploded view of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application;

[0158] Figure 99 This is an exploded view of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application;

[0159] Figure 100 This is a schematic diagram of the overall structure of the volute body of a wall-mounted air conditioner according to an embodiment of this application.

[0160] Figure 101 This is a top view of the overall structure of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application.

[0161] Figure 102This is an exploded view of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application;

[0162] Figure 103 This is a partial schematic diagram of the volute body of a wall-mounted air conditioner according to an embodiment of this application.

[0163] Figure 104 This is a side view of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application;

[0164] Figure 105 This is a schematic diagram of the transmission chamber portion of a wall-mounted air conditioner according to an embodiment of this application;

[0165] Figure 106 This is a partial exploded view of the volute body portion of a wall-mounted air conditioner according to an embodiment of this application;

[0166] Figure 107 This is a flowchart illustrating the operation of a wall-mounted air conditioner according to an embodiment of this application.

[0167] Figure 108 This is a flowchart illustrating the operation of a wall-mounted air conditioner according to an embodiment of this application.

[0168] Figure 109 This is a flowchart illustrating the operation of a wall-mounted air conditioner according to an embodiment of this application. Detailed Implementation

[0169] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0170] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0171] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0172] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0173] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0174] In this application, the air conditioner includes an indoor unit and an outdoor unit. When the air conditioner is operating in cooling mode, it performs a cooling cycle in the indoor unit by using a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger.

[0175] The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air. The refrigerant then provides cooling to the indoor space through its heat absorption process, thereby regulating the temperature of the indoor space.

[0176] The compressor compresses the refrigerant gas at low temperature and low pressure, discharging it as refrigerant gas at high temperature and high pressure. The discharged refrigerant gas flows into the outdoor heat exchanger. The outdoor heat exchanger condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0177] The expansion valve causes the high-temperature, high-pressure liquid refrigerant that condenses in the outdoor heat exchanger to expand into a low-pressure liquid refrigerant.

[0178] The indoor heat exchanger evaporates the refrigerant that expands in the expansion valve and returns the refrigerant gas, which is in a low-temperature, low-pressure state, to the compressor. The indoor heat exchanger achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the indoor air.

[0179] Throughout the entire cooling cycle, the indoor unit of the air conditioner can regulate the temperature of the indoor space.

[0180] When an air conditioner is running in heating mode, it uses the compressor, outdoor heat exchanger, expansion valve, and indoor heat exchanger to perform the heating cycle of the indoor unit.

[0181] The heating cycle involves a series of processes, including compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air. The refrigerant releases heat to the indoor space, thereby regulating the temperature of the indoor space.

[0182] During the heating cycle, the compressor compresses the refrigerant gas at low temperature and low pressure, discharging it as refrigerant gas at high temperature and high pressure. The discharged refrigerant gas flows into the indoor heat exchanger. The indoor heat exchanger condenses the compressed refrigerant into a liquid phase, and the heat generated by condensation exchanges heat with the indoor air flowing through the heat exchanger, thereby increasing the indoor temperature.

[0183] The expansion valve causes the high-temperature, high-pressure liquid refrigerant that condenses in the outdoor heat exchanger to expand into a low-pressure liquid refrigerant.

[0184] The outdoor heat exchanger evaporates the refrigerant that expands in the expansion valve, and returns the refrigerant gas, which is in a low-temperature, low-pressure state, to the compressor. The outdoor heat exchanger can exchange heat with the outdoor air by utilizing the latent heat of refrigerant evaporation.

[0185] Throughout the heating cycle, the indoor unit of the air conditioner can regulate the temperature of the indoor space.

[0186] An air conditioner outdoor unit includes at least a compressor and an outdoor heat exchanger, and an air conditioner indoor unit includes at least an indoor heat exchanger. An expansion valve may be provided in either the air conditioner indoor unit or the air conditioner outdoor unit.

[0187] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the indoor unit of the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an indoor heat exchanger, the indoor unit of the air conditioner functions as a cooler in cooling mode.

[0188] In the following full text: The second air outlet is preferably a fresh air outlet, which is used for outdoor fresh air output.

[0189] The second air inlet is preferably a fresh air inlet, which is used for the input of fresh outdoor air.

[0190] The first fan is preferably a fresh air fan, which is used to drive fresh air.

[0191] The first fan is preferably a fresh air fan; the second fan is preferably a heat exchange fan. The installation space is preferably a mounting slot; the insertion space is preferably a slot.

[0192] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0193] As attached Figures 1 to 5 As shown, this is one embodiment of the indoor unit of the air conditioner of this utility model.

[0194] An air conditioner includes an indoor unit and an outdoor unit. The indoor unit is designated as air conditioner indoor unit 100, and the outdoor unit is designated as wall-mounted fresh air air conditioner outdoor unit 200.

[0195] The outdoor unit 200 of the wall-mounted fresh air conditioner includes a compressor and an outdoor heat exchanger, and the indoor unit 100 includes an indoor heat exchanger. The expansion valve can be located in the indoor unit or the outdoor unit.

[0196] The air conditioner of this application includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, an expansion valve, and piping for refrigerant flow. Both the indoor and outdoor heat exchangers are connected to the compressor. The expansion valve is an electronic expansion valve, which is connected between the indoor and outdoor heat exchangers and is capable of expanding the liquid refrigerant that has undergone the condensation process into a low-pressure liquid refrigerant.

[0197] The compressor includes an intake port and an exhaust port. The refrigerant, which has absorbed heat and undergone an evaporation process, enters the compressor through the intake port. The compressor compresses the gaseous refrigerant into a high-temperature and high-pressure state and then discharges it through the exhaust port.

[0198] The indoor and outdoor heat exchangers are connected to the compressor via a four-way valve in the refrigerant circuit. The four-way valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The compressor's suction port is fixedly connected to the first valve port, and the compressor's discharge port is fixedly connected to the third valve port.

[0199] In the refrigerant circuit, the refrigerant can circulate sequentially through the compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger.

[0200] When the air conditioner is in cooling mode, the first valve port is connected to the second valve port, and the third valve port is connected to the fourth valve port. When the air conditioner is in heating mode, the first valve port is connected to the fourth valve port, and the second valve port is connected to the third valve port.

[0201] See Figures 3-9 In some embodiments, the indoor unit 100 of the air conditioner includes: a housing 1, a base 2, an indoor heat exchanger, a first fan 3, a fresh air module 4, a first drive shaft 7, a first motor 5, and a baffle 10.

[0202] The housing 1 forms the overall appearance of the indoor unit 100 of the air conditioner, and the indoor heat exchanger, the first fan 3 and the fresh air module 4, the first drive shaft 7, the first motor 5 and the baffle 10 are arranged inside the housing 1.

[0203] Air conditioner indoor units (100) are typically installed on indoor walls or similar locations. Wall-mounted fresh air conditioner outdoor units (200) are typically installed outdoors for heat exchange with the outdoor environment.

[0204] In addition, the air conditioner includes a controller to operate the various components within the unit, enabling them to perform their predetermined functions. The air conditioner also includes a control device, exemplarily a remote control, which has the capability to communicate with the controller, for example, using infrared or other communication methods. The remote control allows the user to perform various controls on the air conditioner, facilitating interaction between the user and the air conditioner.

[0205] The housing 1 is located at the top of the room or in the space above the room. The housing 1 has at least a first air inlet 11 and a first air outlet 12, which extend along the length of the housing 1. When the indoor air conditioning unit 100 is installed on the wall, the horizontal direction of the indoor air conditioning unit 100 parallel to the wall is the length direction of the housing 1, that is, the left-right direction of the housing 1 is the length direction of the housing 1.

[0206] The first air inlet 11 is located at the top of the casing 1, and the first air outlet 12 is located at the front of the casing 1 and near the bottom of the casing 1. Indoor air enters the casing 1 through the first air inlet 11 and flows back into the room through the first air outlet 12.

[0207] The base 2 is located inside the casing 1. A heat exchange air duct 21 is formed inside the base 2. The heat exchange air duct 21 connects the first air inlet 11 and the first air outlet 12 on the casing 1. Indoor air enters the casing 1 from the first air inlet 11, passes through the heat exchange air duct 21, and is blown out from the first air outlet 12.

[0208] The indoor heat exchanger is installed inside the casing 1. The refrigerant flowing inside it exchanges heat with the indoor air to form a heating cycle or a cooling cycle. After passing through the indoor heat exchanger, the indoor air flows to the outside of the casing 1 through the first air outlet 12.

[0209] The first fan 3 is installed inside the heat exchange duct 21 within the casing 1, and is located below the indoor heat exchanger. The first fan 3 extends along the length of the casing 1. The first fan 3 can be a cross-flow fan. When the first fan 3 is started, indoor air is introduced into the casing 1 through the first air inlet 11 by the drive of the first fan 3. After heat exchange in the indoor heat exchanger, it flows out of the room through the first air outlet 12. The first fan 3 provides the power for indoor air to flow from the first air inlet 11 through the casing 1 to the first air outlet 12.

[0210] Indoor air enters the casing 1 through the first air inlet 11 and exchanges heat with the indoor heat exchanger. Then, it flows out to the indoor space through the first air outlet 12 on the casing 1, thus realizing the supply of indoor air.

[0211] The fresh air module 4 is located in the space inside the casing 1 of the indoor unit of the air conditioner. The fresh air module 4 includes at least a volute body 41, a first fan 8, and a ventilation casing 42.

[0212] The volute body 41 is located inside the housing 1 and is arranged along the length of the housing 1 with the first fan 3. The volute body 41 includes at least a second air outlet 413. The ventilation shell 42 is arranged along the length of the housing 1 with the volute body 41. The ventilation shell 42 includes at least a second air inlet.

[0213] The volute body 41 and the ventilation shell 42 are connected, and after the volute body 41 and the ventilation shell 42 are connected, a new air cavity is formed that connects the second air inlet 421 and the second air outlet 413.

[0214] The first fan 8 is installed inside the fresh air cavity and correspondingly located inside the volute body 41. The first fan 8 can be a centrifugal fan. When the first fan 8 is started, outdoor air is introduced into the fresh air cavity through the second air inlet 421, passes through the first fan 8, and flows into the room through the second air outlet 413. The first fan 8 provides the power for fresh air to flow from the second air inlet 421 to the second air outlet 413.

[0215] The indoor unit 100 of the air conditioner also includes a fresh air duct connecting the indoor and outdoor environments. The fresh air duct passes through a duct installation hole opened in the wall. One end of the fresh air duct faces indoors and is connected to the second air inlet 421 of the fresh air module 4, while the other end faces outdoors and is provided with an air inlet. The fresh air duct is connected to the outdoors through the air inlet. Under the action of the fresh air unit, outdoor fresh air enters the indoor fresh air module 4 from the outside along the fresh air duct and is blown into the room from the second air outlet 413, thereby realizing the introduction of outdoor fresh air into the room.

[0216] The indoor heat exchanger also includes an inner air guide plate and an outer air guide plate 13. The inner air guide plate is located at the first air outlet 12 and inside the casing 1. The outer air guide plate 13 is located at the first air outlet 12 of the indoor unit of the air conditioner. The first air outlet 12 is connected to the first air inlet 11. Driven by the first fan 3, indoor air enters the casing 1 through the first air inlet 11, flows through the indoor heat exchanger, and is discharged into the indoor space through the first air outlet 12.

[0217] In the indoor unit 100 of the air conditioner, the inner air guide plate can swing back and forth to swing and sweep the indoor air from side to side. The outer air guide plate 13 can rotate up and down to swing and sweep the indoor air and adjust the direction of the airflow from the first air outlet 12.

[0218] An air conditioner also includes a controller, which is a device that generates operation control signals based on instruction operation codes and timing signals to instruct the air conditioner to execute control commands. For example, in response to a power-on or power-off command issued by a user, the controller can perform an operation related to the object selected by the power-on or power-off command.

[0219] A first drive shaft 7 is disposed between the first fan 8 and the first fan 3, and is used to connect the first fan 8 and the first fan 3. The rotation axis of the first drive shaft 7 is coaxial with the rotation axes of the first fan 8 and the first fan 3. In the indoor unit of the air conditioner, a first motor 5 is configured as one unit to drive the first fan 3 and the first fan 8 to operate synchronously. The first motor 5 can be a single-axis motor or a dual-axis motor.

[0220] When the first motor 5 is a single-shaft motor, it is connected to the end of the first fan 3 furthest from the first fan 8. The output shaft of the first motor 5 is connected to the first fan 3, and the first motor 5 drives the first fan 3 to rotate, thereby causing the first fan 3 to drive the first fan 8 to rotate synchronously via the first drive shaft 7. When the first motor 5 is a dual-shaft motor, it includes a first motor shaft and a second motor shaft, which are coaxially arranged. The first motor shaft is connected to the first fan 3, and the second motor shaft is connected to the first fan 8, so that the first motor 5 can drive the first fan 3 and the first fan 8 to rotate synchronously.

[0221] It should be noted that when the first motor 5 is a single-shaft motor, the first motor 5 is located at one end of the first fan 4 along the length of the casing 1. When the first motor 5 is a dual-shaft motor, the first motor 5 is located between the first fan 4 and the first fan 8 along the length of the casing 1.

[0222] In some embodiments, the volute body 41 and the ventilation shell 42 are connected, and a second air inlet 421 is formed at the connection between the volute body 41 and the ventilation shell 42. The second air inlet 421 is at least partially disposed on the ventilation shell 42 and at least partially disposed on the volute body 41.

[0223] In some embodiments, the volute body 41 includes a first shell 411 and a second shell 412, which are connected to form an integral volute body 41. A second air outlet 413 is formed at the connection between the first shell 411 and the second shell 412. The second air outlet 413 is at least partially disposed on the first shell 411 and at least partially disposed on the second shell 412.

[0224] The second shell 412 is provided with an air intake 414, and the fresh air outlet is connected to the air intake 414, so that the indoor air entering the ventilation shell 42 from the second air inlet 421 enters the volute through the air intake 414, and enters the room through the second air outlet 413 under the drive of the first fan 8 inside the volute body 41.

[0225] In some embodiments, a first buckle 43 is provided on the outer wall of the first shell 411, and a first hook 45 is provided on the outer wall of the second shell 412 connected to the first shell 411. The first hook 45 is engaged with the first buckle 43 to fix the second shell 412 and the first shell 411 together. Further, the first shell 411 and the second shell 412 are connected and fixed by a fastener, which is a screw. The screw passes through the first shell 411 and the second shell 412 to further fix the first shell 411 and the second shell 412. Alternatively, the outer wall of the first shell 411 may also be provided with a first hook 45, and the outer wall of the second shell 412 may also be provided with a first buckle 43.

[0226] The ventilation housing 42 is connected to the side of the second housing 412 away from the first housing 411. A second hook 46 is provided on the outer wall of the second housing 412 connected to the ventilation housing 42, and a second buckle 44 is provided on the outer wall of the ventilation housing 42 connected to the second housing 412. The second hook 46 is engaged with the second buckle 44 to fix the second housing 412 and the ventilation housing 42 together. The second air inlet 421 is connected to the air intake 414. The second housing 412 and the ventilation housing 42 are further connected and fixed by fasteners, specifically screws, which pass through the second housing 412 and the ventilation housing 42 to further secure them. Alternatively, a first buckle 43 and a first hook 45 may also be provided on the outer wall of the second housing 412 connected to the ventilation housing 42.

[0227] In some embodiments, a purification port 416 is provided on the second shell 412, an air intake is provided on the side of the second shell 412 connected to the first shell 411, a guide rail mounting plate is formed on the side of the second shell 412 away from the first shell 411, a purification cavity is formed between the guide rail mounting plate 47 and the plate where the air intake 414 is located, the purification cavity is connected to the purification port 416, and a purification module is provided in the purification cavity.

[0228] The purification module includes a purification frame 9 and a filter. The filter is mounted on the purification frame 9 and is used to filter and purify outdoor fresh air and indoor air, preventing impurities and lint in the fresh air from entering the room through the volute. A third guide rail 4111 is installed inside the fresh air module 4, mounted on the second housing 412. The third guide rail 4111 extends from the inside of the ventilation housing 42 to the purification port 416. The purification frame 9 can be inserted into the second housing 42 along the third guide rail 4111, enabling the purification module to be slidably disassembled and installed, facilitating user self-disassembly, cleaning, and replacement of the filter.

[0229] Reference Figures 9-21 The guide rail is provided on the ventilation housing 42 and / or the second housing 412. A baffle 10 is provided between the ventilation housing 42 and the second housing 412, and the baffle 10 cooperates with the guide rail so that the baffle 10 can slide along the guide rail.

[0230] A first baffle 111, a second baffle 112, and a third baffle 113 are also provided between the ventilation housing 42 and the second housing 412. The third baffle 113 is located between the purification air inlet 429 and the second air inlet 421. When the baffle 10 slides to abut against the first baffle 111, the third baffle 113 abuts against the baffle 10. The purification air inlet 429 is separated from the second air outlet 421, and the second air inlet 421 is connected to the second air outlet 413.

[0231] When the baffle 10 slides to abut against the second baffle 112, the third baffle 113 abuts against the baffle 10, the purification air inlet 429 is connected to the second air outlet 413, and the second air inlet 421 is separated from the second air outlet 413.

[0232] In this application, when the user does not want to introduce fresh air into the room but only wants to turn on the first fan 3 to exchange heat with the indoor air, the baffle 10 slides to close the second air inlet 421 to prevent the introduction of fresh air into the room. At this time, the rotation of the first fan 3 drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives the indoor air to enter the volute body 41 through the purification air inlet 429. The indoor air entering the volute body 41 is discharged into the room through the second air outlet 413, which avoids the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, and thus avoids the problem of aerodynamic noise when the first fan 8 rotates.

[0233] In some embodiments, the first stop 111 includes a first main stop 1111 and a first secondary stop 1112. The first main stop 1111 is integrally formed with the ventilation housing 42, and the first secondary stop 1112 is integrally formed with the second housing 412. The second stop 112 is disposed on the side of the second housing 412 away from the first housing 411. The second stop 112 includes a second main stop 1121 and a second secondary stop 1122. The second main stop 1121 is integrally formed with the ventilation housing 42, and the second secondary stop 1122 is integrally formed with the second housing 412.

[0234] When the ventilation housing 42 is connected to the second housing 412, the first main baffle 1111 abuts against the first auxiliary baffle 1112, and the second main baffle 1121 abuts against the second auxiliary baffle 1122. When the baffle 10 slides to abut against the first baffle 111, the baffle 10 abuts against the third baffle 113. At this time, the first baffle 111, the baffle 10, the third baffle 113, the ventilation housing 42, and the second housing 412 surround each other, thereby isolating the purification air inlet 429 from the second air outlet 413, thus improving the sealing and isolation effect. At this time, the second baffle 112 does not abut against the baffle 10, so that the second air inlet 421 and the second air outlet 413 are connected. Fresh air enters the fresh air module 4 from the outside under the drive of the first fan 8, and finally flows into the room through the second air outlet 413.

[0235] When the baffle 10 slides to abut against the second baffle 112, the baffle abuts against the third baffle 113. At this time, the second baffle 112, the baffle 10, the third baffle 113, the ventilation shell 42, and the second shell 412 surround each other, thereby isolating the second air inlet 421 from the second air outlet 413, thus improving the sealing and isolation effect and preventing outdoor fresh air from entering the room. At this time, the first baffle 111 does not abut against the baffle 10, so that the purification air inlet 429 is connected to the second air outlet 413. Under the drive of the first fan 8, indoor air enters the fresh air module 4 through the purification air inlet 429 and finally flows into the room through the second air outlet 413.

[0236] In some embodiments, the first stop 111 may be integrally formed with the ventilation housing 42, and the first stop 111 may also be integrally formed with the second housing 412. The second stop 112 may be integrally formed with the ventilation housing 42, and the second stop 112 may also be integrally formed with the second housing 412.

[0237] In some embodiments, the guide rail includes a first guide rail and a second guide rail. The first guide rail is disposed on the ventilation housing 42 and is arc-shaped. The second guide rail is disposed on the second housing 412 and is arc-shaped corresponding to the first guide rail. The opposite ends of the baffle 10 are respectively inserted into the first guide rail and the second guide rail so that the baffle 10 can slide along the first guide rail and the second guide rail.

[0238] In some embodiments, the baffle 10 is configured as an arc shape adapted to the first guide rail and the second guide rail. The two opposite ends of the baffle 10 are respectively connected to the first guide rail and the second guide rail, so that the baffle 10 can slide along the first guide rail and the second guide rail, thereby reducing the movement stroke of the baffle 10 in the straight direction and improving the space utilization rate in the ventilation shell 42 and the second shell 412.

[0239] The baffle 10 is defined as having a first position, a second position, and a third position. The baffle 10 can slide sequentially from the first position to the second and third positions along the guide rail.

[0240] When the baffle 10 slides to the first position, it abuts against the first stop block 111 and the third stop block 113. At this time, the first stop block 111, the baffle 10, the third stop block 113, the ventilation shell 42, and the second shell 412 surround each other, thereby isolating the purification air inlet 429 from the second air outlet 413, thus improving the sealing and isolation effect. At this time, the second stop block 112 does not abut against the baffle 10, so that the second air inlet 421 and the second air outlet 413 are connected. Fresh air enters the fresh air module 4 from the outside under the drive of the first fan 8, and finally flows into the room through the second air outlet 413.

[0241] When the baffle 10 slides to the second position, the baffle 10 abuts against the second stop block 112, and the stop block abuts against the third stop block 113. At this time, the second stop block 112, the baffle 10, the third stop block 113, the ventilation shell 42, and the second shell 412 surround each other, thereby isolating the second air inlet 421 from the second air outlet 413, thus improving the sealing and isolation effect and preventing outdoor fresh air from entering the room. At this time, the first stop block 111 does not abut against the baffle 10, so that the purification air inlet 429 is connected to the second air outlet 413. Under the drive of the first fan 8, indoor air enters the fresh air module 4 through the purification air inlet 429 and finally flows into the room through the second air outlet 413.

[0242] When the baffle 10 slides to the third position, the baffle 10 abuts against the second block 112, and the block abuts against the third block 113. At this time, the second block 112, the baffle 10, the third block 113, the ventilation shell 42, and the second shell 412 surround each other, thereby isolating the second air inlet 421 from the second air outlet 413, thus improving the sealing and isolation effect and preventing outdoor fresh air from entering the room. At this time, the first block 111 does not abut against the baffle 10, so that the purification air inlet 429 is connected to the second air outlet 413. Under the drive of the first fan 8, indoor air enters the fresh air module 4 through the purification air inlet 429 and finally flows into the room through the second air outlet 413.

[0243] In some embodiments, when the baffle 10 slides to the second position, the shortest distance between the second stop 112 and the baffle 10 is defined as the first distance a; when the baffle 10 slides to the third position, the shortest distance between the second stop 112 and the baffle 10 is defined as the second distance b, and the first distance a is less than the second distance b. It can be set that the value of the first distance a is no greater than 10 mm.

[0244] When a user does not wish to introduce fresh air into the room but only wants to turn on the first fan to exchange heat with the indoor air, the baffle 10 slides to the third position to close the second air inlet 421, thus preventing the introduction of fresh air into the room. At this time, the rotation of the first fan drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives indoor air to enter the volute body through the purification air inlet 429. The indoor air entering the volute body passes through the first gap a between the baffle 10 and the first baffle 111, and is then discharged into the room through the second air outlet 413. This avoids the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thus avoiding the aerodynamic noise problem that occurs when the first fan 8 rotates, and ensuring the stability of the internal airflow pressure of the fresh air module 4.

[0245] In some embodiments, the baffle mounting plate 47 is provided with an air intake vent 415, which is arranged opposite to the air intake vent 414 so that air can flow through the air intake vent 415 to the air intake vent 414, and then flow into the room through the second air outlet 413.

[0246] A guide rail is mounted on a baffle mounting plate 47 on the outer edge of the air intake 415, and the guide rail surrounds the air intake 415. A first limiting part 114 and a second limiting part 115 are provided on the guide rail. When the baffle 10 slides to the first position, the baffle 10 abuts against the first limiting part 114 to limit the sliding stroke of the baffle 10. When the baffle 10 slides to the second position, the baffle 10 abuts against the second limiting part 115. The baffle 10 abuts against the second limiting part 115 to limit the sliding stroke of the baffle 10.

[0247] In some embodiments, the air conditioner indoor unit 100 further includes a second motor 103 and a gear 102.

[0248] The second motor 103 is fixedly connected to the ventilation housing 41. The gear 102 is rotatably connected to the second housing 41, and the output shaft of the second motor 103 is connected to the rotation shaft of the gear 102.

[0249] A rack portion 101 is provided on the baffle 10. The rack portion 101 is located on the side of the baffle 10 close to the gear 102. The rack portion 101 meshes with the gear 102. The rack portion 101 extends in the reciprocating sliding direction of the baffle 10.

[0250] The output shaft of the second motor 103 rotates to drive the gear 102 to rotate. The gear 102 meshes with the rack 101 to drive the baffle 10 to slide back and forth. The baffle 10 opens or closes the second air inlet 421 by sliding back and forth.

[0251] In some embodiments, the ventilation housing 42 is provided with a first inlet 427, and the second housing 412 is provided with a second inlet 428. The first inlet 427 and the second inlet 428 are connected and cooperate to form a second air inlet 421. When assembling the baffle 10, the baffle 10 is first assembled in the first guide rail 423 or the second guide rail 424, and then the ventilation housing 42 and the second housing 412 are connected to restrict the baffle 10 within the first guide rail 423 and the second guide rail 424, so that the baffle 10 can only slide back and forth along the extension direction of the first guide rail 423 or the second guide rail 424.

[0252] When the fresh air function is turned on, the second motor 103 drives the gear 102 to rotate in the forward direction. The gear 102 meshes with the rack part 101 to drive the baffle 10 to slide. By driving the baffle to move along the first guide rail 423, the baffle abuts against the first block and the third block to open the second air inlet, thereby controlling the outdoor fresh air to enter the room.

[0253] When the fresh air function is turned off, the second motor 103 drives the gear 102 to rotate in the opposite direction. The gear 102 meshes with the rack part 101 to drive the baffle 10 to slide. By driving the baffle to move along the first guide rail 423, the baffle abuts against the second and third blocks to close the second air inlet 421, preventing fresh air from flowing back into the room. At this time, the first fan rotates to drive indoor air through the purification air inlet and the first gap a, into the fresh air module, and then into the room through the second air outlet. This avoids the noise of the first fan blocking when it rotates and improves the user experience.

[0254] When the fresh air function is off, the first fan 8 is connected to the first fan 3 via the first drive shaft 7, so when the first fan 3 rotates, the first fan 8 rotates synchronously. When the user does not want to introduce fresh air into the room and only wants to turn on the first fan 3 to exchange heat with the indoor air, the baffle 10 slides to close the second air inlet 421 to prevent fresh air from being introduced into the room. At this time, the rotation of the first fan 3 drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives indoor air to enter the volute body 41 through the purification air inlet and the first gap a. The indoor air entering the volute body 41 is discharged into the room through the second air outlet 413, avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, and thus avoiding the problem of aerodynamic noise when the first fan 8 rotates.

[0255] In some embodiments, a first clearance portion 425 is provided on the outer wall of the ventilation housing 42 connected to the second housing 412, and a second clearance portion 426 is provided at the connection point of the ventilation housing 42 and the second housing 412. After the ventilation housing 42 and the second housing 412 are connected, the first clearance portion 425 and the second clearance portion 426 are connected to form a clearance groove. At least a portion of the rack is disposed in the clearance groove, which is disposed on one side of the fresh air inlet. The rack is driven by the second motor 103 to reciprocate within the clearance groove.

[0256] See Figures 22-26 In some embodiments, the central part of the first fan 8 is provided with a shaft connection part 81, which is used to connect the first drive shaft 7. The end of the first drive shaft 7 away from the first fan 3 is inserted into the shaft connection part 81 to connect to the shaft connection part 81.

[0257] The first shell 411 of the volute body 41 is provided with a connecting hole 417, which communicates with the interior of the volute body 41. The connecting hole 417 is correspondingly provided with the shaft connecting part 81, and the opening of the connecting hole 417 faces the first fan 3. The first drive shaft 7 passes through the connecting hole 417 and is provided in the shaft hole so that the first drive shaft 7 is connected to the first fan 8. The rotation of the first drive shaft 7 drives the first fan 8 to rotate synchronously.

[0258] In some embodiments, a bearing 6 is provided inside the housing 1, and a first drive shaft 7 is fitted with and passes through the bearing 6. The first drive shaft 7 is movably connected to the bearing 6, and the bearing 6 is used to support the rotation of the first drive shaft 7.

[0259] The bearing 6 includes a bearing body 61 and bearing balls 62. The bearing 6 has a connecting cavity 611 that extends through both the bearing body 61 and the bearing balls 62. The two openings of the connecting cavity 611 face the first fan 8 and the first fan 3 respectively. The first drive shaft 7 passes through the connecting cavity 611. It should be noted that the bearing body 61 has an installation space 612 that communicates with the connecting cavity 611 and is located near the first fan 3. The bearing balls 62 are located within the installation space 612.

[0260] As attached Figures 27 to 36 As shown in the schematic embodiment of the wall-mounted air conditioner of this utility model, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300, a connecting shaft 110, a shaft hole 210, and a first motor 500. The housing 100 has a first inner cavity and a second inner cavity arranged along its length. An air inlet is provided at the top of the housing 100, and an air outlet is provided at the bottom front side of the housing 100. The indoor heat exchanger is disposed within the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through it to form a heat exchange airflow.

[0261] The second fan 400 is located inside the first inner cavity and below the indoor heat exchanger. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the air conditioner inlet and is then heat-exchanged by the indoor heat exchanger before being output to the room through the air conditioner outlet.

[0262] The volute body 700 is disposed in the second inner cavity, and the volute body 700 is provided with a second air inlet and a second air outlet 720; the first fan 300 is disposed in the volute body 700.

[0263] The first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; one end of the connecting shaft 110 is connected to the first fan 300, and the other end of the connecting shaft 110 is connected to the second fan 400 or the first motor 500; the shaft hole 210 is opened in the volute body 700, and the shaft hole 210 is used for the connecting shaft 110 to pass through; the diameter of the shaft hole 210 does not exceed 1.5 times the diameter of the connecting shaft 110.

[0264] By limiting the diameter ratio between the shaft hole 210 and the connecting shaft 110, it is ensured that when the first motor 500 drives the first fan 300 to rotate through the connecting shaft 110, the connecting shaft 110 will not come into contact with the shaft hole 210, resulting in vibration and noise. Furthermore, under this ratio, the overall sealing of the volute body 700 is still guaranteed, reducing air leakage.

[0265] Please refer to Figure 37 In some embodiments, the diameter of the connecting shaft 110 is D1 and the diameter of the shaft hole 210 is D2, then D2 < 1.5D1.

[0266] Please refer to Figures 27 to 43 In some embodiments, the shaft hole 210 is a circular hole, and the axis of the connecting shaft 110 is collinear with the axis of the circular hole. This ensures that the distance between the peripheral wall of the connecting shaft 110 and the inner peripheral wall of the circular hole is the same in all directions when the connecting shaft 110 is stationary. This also ensures that when the first motor 500 drives the connecting shaft 110 to rotate, the distance between the connecting shaft 110 and the peripheral wall is uniform under the action of excitation vibration, thus avoiding the connecting shaft 110 from touching the volute body 700 and generating vibration and noise.

[0267] In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, the first split shell 730 being disposed on the side of the second split shell 740 near the second fan 400; and the shaft hole 210 being formed in the first split shell 730.

[0268] In some embodiments, the shaft hole 210 is formed on the side of the first split housing 730 facing the second fan 400. The side of the first split housing 730 facing the second fan 400 is perpendicular to the axis of the second fan 400, and the shaft hole 210 is coaxial with the second fan 400.

[0269] In some embodiments, the first split shell 730 includes a third half-shell 731 and a fourth half-shell 732. The third half-shell 731 has a first mounting portion 211, and the fourth half-shell 732 has a second mounting portion 212. When the third half-shell 731 and the fourth half-shell 732 are joined, the first mounting portion 211 and the second mounting portion 212 correspondingly form a shaft hole 210. During the manufacturing process, a retaining ring is typically provided on the connecting shaft 110 to restrict the position of the first fan 300. The retaining ring usually has a large diameter. Furthermore, because the retaining ring needs to be installed onto the connecting shaft 110 using special equipment, it must be installed onto the connecting shaft 110 before it passes through the shaft hole 210. With this solution, during installation, the first mounting part 211 and the second mounting part 212 correspond to the connecting shaft 110 respectively, and the third half shell 731 and the fourth half shell 732 can be directly fastened to the connecting shaft 110. The retaining ring does not need to pass through the shaft hole 210. Therefore, the diameter of the shaft hole 210 is not limited by the diameter of the retaining ring, which ensures the relationship between the diameter of the shaft hole 210 and the diameter of the connecting shaft 110, while facilitating the installation of the volute body 700.

[0270] In some embodiments, the first mounting portion 211 is a semi-circular through-slot that penetrates the side wall of the third half-shell 731 near the second fan 400; the second mounting portion 212 is a semi-circular through-slot that penetrates the side wall of the fourth half-shell 732 near the second fan 400. After the third half-shell 731 and the fourth half-shell 732 are spliced ​​to form the first split shell 730, the first mounting portion 211 and the second mounting portion 212 are joined to form the shaft hole 210.

[0271] In some embodiments, the curvature of the edge of the first mounting portion 211 is a superior arc, and the curvature of the edge of the second mounting portion 212 is a inferior arc.

[0272] In some embodiments, the curvature of the edge of the first mounting portion 211 is a minor arc, and the curvature of the edge of the second mounting portion 212 is a major arc.

[0273] In some embodiments, the perimeter of the peripheral wall of the first mounting portion 211 is the same as the perimeter of the peripheral wall of the second mounting portion 212.

[0274] Please refer to Figures 27 to 43In some embodiments, the third half-shell 731 is located near the top of the housing 100, and the fourth half-shell 732 is located near the top of the housing 100. During installation, the connecting shaft 110 is inserted into the fourth mounting portion of the fourth half-shell 732, and then the third half-shell 731 and the fourth half-shell 732 are fastened together, with the connecting shaft 110 directly located in the shaft hole 210 formed by the splicing of the third mounting portion and the fourth mounting portion.

[0275] In some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742. The second half shell 742 is disposed at one end of the first half shell 741 facing the second fan 400. The first split shell 730 is disposed on the side of the second half shell 742 away from the first half shell 741. The first fan 300 is disposed between the first split shell 730 and the second half shell 742.

[0276] In some embodiments, the third half-shell 731 and the fourth half-shell 732 are disposed on the side of the second half-shell 742 near the second fan 400. A first fresh air cavity is formed between the third half-shell 731, the fourth half-shell 732, and the second half-shell 742, and the first fan 300 is disposed within the first fresh air cavity; the second air outlet 720 communicates with the first fresh air cavity. Under the action of the first fan 300, outdoor airflow enters the first fresh air cavity and is output through the second air outlet 720.

[0277] In some embodiments, the first half-shell 741 and the second half-shell 742 form a second fresh air cavity. A ventilation channel is provided on the second half-shell 742 to achieve communication between the first fresh air cavity and the second fresh air cavity. The second air inlet is connected to the second fresh air cavity. Under the action of the first fan 300, outdoor airflow enters the second fresh air cavity through the second air inlet. Fresh airflow enters the first fresh air cavity through the ventilation channel and is then output to the room through the second air outlet 720.

[0278] In some embodiments, a baffle is provided on the volute body 700, which is used to open or close the second air inlet.

[0279] In some embodiments, a driving component is provided on the volute body 700, which is used to drive the baffle to open or close the second air inlet. The driving component includes, but is not limited to, a motor, a pneumatic rod, or a hydraulic rod.

[0280] In some embodiments, a first motor 500 is disposed between a second fan 400 and a first fan 300, and a connecting shaft 110 is the output shaft of the first motor 500. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously through the connecting shaft 110, thereby realizing that one first motor 500 can simultaneously drive the second fan 400 and the first fan 300 to rotate synchronously.

[0281] Please refer to Figures 27 to 43In some embodiments, the first motor 500 is located at the end of the second fan 400 away from the first fan 300, and the connecting shaft 110 is located between the second fan 400 and the first fan 300, with both ends of the connecting shaft 110 connected to the first fan 300 and the second fan 400, respectively. The first motor 500 directly drives the second fan 400 and the first fan 300 on both sides to rotate synchronously through the connecting shaft 110.

[0282] Please refer to Figures 27 to 43 Furthermore, this application also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300, a connecting shaft 110, a shaft hole 210, and a first motor 500. The housing 100 has a first inner cavity and a second inner cavity arranged along its length. An air inlet is provided at the top of the housing 100, and an air outlet is provided at the bottom front side of the housing 100. The indoor heat exchanger is disposed within the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through it to form a heat exchange airflow.

[0283] The second fan 400 is located inside the first inner cavity and below the indoor heat exchanger. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the air conditioner inlet and is then heat-exchanged by the indoor heat exchanger before being output to the room through the air conditioner outlet.

[0284] The volute body 700 is disposed in the second inner cavity, and the volute body 700 is provided with a second air inlet and a second air outlet 720; the first fan 300 is disposed in the volute body 700.

[0285] The first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; one end of the connecting shaft 110 is connected to the first fan 300, and the other end of the connecting shaft 110 is connected to the second fan 400 or the first motor 500; the shaft hole 210 is opened in the volute body 700, and the shaft hole 210 is used for the connecting shaft 110 to pass through; the gap between the connecting shaft 110 and the shaft hole 210 is 2mm~5mm.

[0286] By using the above method, the dimensional relationship between the shaft hole 210 and the connecting shaft 110 is limited, thereby ensuring that when the first motor 500 drives the first fan 300 to rotate through the connecting shaft 110, the connecting shaft 110 will not come into contact with the shaft hole 210, resulting in vibration and noise. Furthermore, under this dimensional relationship, the overall sealing of the volute body 700 is still guaranteed, reducing air leakage.

[0287] Figures 27 to 43In some embodiments, the shaft hole 210 is a circular hole, and the axis of the connecting shaft 110 is collinear with the axis of the circular hole. This ensures that the distance between the peripheral wall of the connecting shaft 110 and the inner peripheral wall of the circular hole is the same in all directions when the connecting shaft 110 is stationary. This also ensures that when the first motor 500 drives the connecting shaft 110 to rotate, the distance between the connecting shaft 110 and the peripheral wall is uniform under the action of excitation vibration, thus avoiding the connecting shaft 110 from touching the volute body 700 and generating vibration and noise.

[0288] In some embodiments, the gap between the connecting shaft 110 and the shaft hole 210 is 3mm. With the above solution, at this size, it is ensured that when the first motor 500 drives the first fan 300 to rotate through the connecting shaft 110, the connecting shaft 110 will not come into contact with the shaft hole 210, causing vibration and noise, and the overall sealing of the volute body 700 is guaranteed to the greatest extent, reducing air leakage.

[0289] In some embodiments, the diameter of the shaft hole 210 is 14 mm, and the diameter of the connecting shaft 110 is 8 mm; the single-sided gap between the connecting shaft 110 and the shaft hole 210 is 3 mm. Experiments showed that under these conditions, the first fan 300 operates at 700 rpm with an airflow of 11.34 cubic meters per hour; at 860 rpm with an airflow of 16.01 cubic meters per hour; at 980 rpm with an airflow of 18.6 cubic meters per hour; at 1350 rpm with an airflow of 28.06 cubic meters per hour; and at 1630 rpm with an airflow of 34.8 cubic meters per hour. This demonstrates that, under these dimensions, while ensuring that the connecting shaft 110 does not touch the shaft hole 210 and generate noise, the impact on the fresh air volume is minimized.

[0290] In some embodiments, the gap between the connecting shaft 110 and the shaft hole 210 is the distance between the outer peripheral wall of the connecting shaft 110 and the inner peripheral wall of the shaft hole 210 along the radial direction of the connecting shaft 110, and the gap between the connecting shaft 110 and the shaft hole 210 is a single-sided gap.

[0291] In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, the first split shell 730 being disposed on the side of the second split shell 740 near the second fan 400; and the shaft hole 210 being formed in the first split shell 730.

[0292] In some embodiments, the first split shell 730 includes a third half-shell 731 and a fourth half-shell 732. The third half-shell 731 has a first mounting portion 211, and the fourth half-shell 732 has a second mounting portion 212. When the third half-shell 731 and the fourth half-shell 732 are joined, the first mounting portion 211 and the second mounting portion 212 correspondingly form a shaft hole 210. During the manufacturing process, a retaining ring is typically provided on the connecting shaft 110 to restrict the position of the first fan 300. The retaining ring usually has a large diameter. Furthermore, because the retaining ring needs to be installed onto the connecting shaft 110 using special equipment, it must be installed onto the connecting shaft 110 before it passes through the shaft hole 210. With this solution, during installation, the first mounting part 211 and the second mounting part 212 correspond to the connecting shaft 110 respectively, and the third half shell 731 and the fourth half shell 732 can be directly fastened to the connecting shaft 110. The retaining ring does not need to pass through the shaft hole 210. Therefore, the diameter of the shaft hole 210 is not limited by the diameter of the retaining ring, which ensures the relationship between the diameter of the shaft hole 210 and the diameter of the connecting shaft 110, while facilitating the installation of the volute body 700.

[0293] In some embodiments, the first mounting portion 211 is a semi-circular through-slot that penetrates the side wall of the third half-shell 731 near the second fan 400; the second mounting portion 212 is a semi-circular through-slot that penetrates the side wall of the fourth half-shell 732 near the second fan 400. After the third half-shell 731 and the fourth half-shell 732 are spliced ​​to form the first split shell 730, the first mounting portion 211 and the second mounting portion 212 are joined to form the shaft hole 210.

[0294] In some embodiments, the curvature of the edge of the first mounting portion 211 is a superior arc, and the curvature of the edge of the second mounting portion 212 is a inferior arc.

[0295] In some embodiments, the curvature of the edge of the first mounting portion 211 is a minor arc, and the curvature of the edge of the second mounting portion 212 is a major arc.

[0296] In some embodiments, the perimeter of the peripheral wall of the first mounting portion 211 is the same as the perimeter of the peripheral wall of the second mounting portion 212.

[0297] In some embodiments, the third half-shell 731 is located near the top of the housing 100, and the fourth half-shell 732 is located near the top of the housing 100. During installation, the connecting shaft 110 is inserted into the fourth mounting portion of the fourth half-shell 732, and then the third half-shell 731 and the fourth half-shell 732 are fastened together, with the connecting shaft 110 directly located in the shaft hole 210 formed by the splicing of the third mounting portion and the fourth mounting portion.

[0298] As attached Figures 44 to 48 As shown, this is one embodiment of the indoor unit of the air conditioner of this utility model.

[0299] An air conditioner includes an indoor unit and an outdoor unit. The indoor unit is designated as air conditioner indoor unit 100, and the outdoor unit is designated as wall-mounted fresh air air conditioner outdoor unit 200.

[0300] The outdoor unit 200 of the wall-mounted fresh air conditioner includes a compressor and an outdoor heat exchanger, and the indoor unit 100 includes an indoor heat exchanger. The expansion valve can be located in the indoor unit or the outdoor unit.

[0301] The air conditioner of this application includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, an expansion valve, and piping for refrigerant flow. Both the indoor and outdoor heat exchangers are connected to the compressor. The expansion valve is an electronic expansion valve, which is connected between the indoor and outdoor heat exchangers and is capable of expanding the liquid refrigerant that has undergone the condensation process into a low-pressure liquid refrigerant.

[0302] The compressor includes an intake port and an exhaust port. The refrigerant, which has absorbed heat and undergone an evaporation process, enters the compressor through the intake port. The compressor compresses the gaseous refrigerant into a high-temperature and high-pressure state and then discharges it through the exhaust port.

[0303] The indoor and outdoor heat exchangers are connected to the compressor via a four-way valve in the refrigerant circuit. The four-way valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The compressor's suction port is fixedly connected to the first valve port, and the compressor's discharge port is fixedly connected to the third valve port.

[0304] In the refrigerant circuit, the refrigerant can circulate sequentially through the compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger.

[0305] When the air conditioner is in cooling mode, the first valve port is connected to the second valve port, and the third valve port is connected to the fourth valve port. When the air conditioner is in heating mode, the first valve port is connected to the fourth valve port, and the second valve port is connected to the third valve port.

[0306] See Figures 47-59 In some embodiments, the indoor unit 100 of the air conditioner includes: a housing 1, a base 2, an indoor heat exchanger, a first fan 3, a fresh air module 4, a first drive shaft 7, a first motor 5, and a baffle 10.

[0307] The housing 1 forms the overall appearance of the indoor unit 100 of the air conditioner, and the indoor heat exchanger, the first fan 3 and the fresh air module 4, the first drive shaft 7, the first motor 5 and the baffle 10 are arranged inside the housing 1.

[0308] Air conditioner indoor units (100) are typically installed on indoor walls or similar locations. Wall-mounted fresh air conditioner outdoor units (200) are typically installed outdoors for heat exchange with the outdoor environment.

[0309] In addition, the air conditioner includes a controller to operate the various components within the unit, enabling them to perform their predetermined functions. The air conditioner also includes a control device, exemplarily a remote control, which has the capability to communicate with the controller, for example, using infrared or other communication methods. The remote control allows the user to perform various controls on the air conditioner, facilitating interaction between the user and the air conditioner.

[0310] The housing 1 is located at the top of the room or in the space above the room. The housing 1 has at least a first air inlet 11 and a first air outlet 12, which extend along the length of the housing 1. When the indoor air conditioning unit 100 is installed on the wall, the horizontal direction of the indoor air conditioning unit 100 parallel to the wall is the length direction of the housing 1, that is, the left-right direction of the housing 1 is the length direction of the housing 1.

[0311] The first air inlet 11 is located at the top of the casing 1, and the first air outlet 12 is located at the front of the casing 1 and near the bottom of the casing 1. Indoor air enters the casing 1 through the first air inlet 11 and flows back into the room through the first air outlet 12.

[0312] The base 2 is located inside the casing 1. A heat exchange air duct 21 is formed inside the base 2. The heat exchange air duct 21 connects the first air inlet 11 and the first air outlet 12 on the casing 1. Indoor air enters the casing 1 from the first air inlet 11, passes through the heat exchange air duct 21, and is blown out from the first air outlet 12.

[0313] The indoor heat exchanger is installed inside the casing 1. The refrigerant flowing inside it exchanges heat with the indoor air to form a heating cycle or a cooling cycle. After passing through the indoor heat exchanger, the indoor air flows to the outside of the casing 1 through the first air outlet 12.

[0314] The first fan 3 is installed inside the heat exchange duct 21 within the casing 1, and is located below the indoor heat exchanger. The first fan 3 extends along the length of the casing 1. The first fan 3 can be a cross-flow fan. When the first fan 3 is started, indoor air is introduced into the casing 1 through the first air inlet 11 by the drive of the first fan 3. After heat exchange in the indoor heat exchanger, it flows out of the room through the first air outlet 12. The first fan 3 provides the power for indoor air to flow from the first air inlet 11 through the casing 1 to the first air outlet 12.

[0315] Indoor air enters the casing 1 through the first air inlet 11 and exchanges heat with the indoor heat exchanger. Then, it flows out to the indoor space through the first air outlet 12 on the casing 1, thus realizing the supply of indoor air.

[0316] The fresh air module 4 is located in the space inside the casing 1 of the indoor unit of the air conditioner. The fresh air module 4 includes at least a volute body 41, a first fan 8, and a ventilation casing 42.

[0317] The volute body 41 is located inside the housing 1 and is arranged along the length of the housing 1 with the first fan 3. The volute body 41 includes at least a second air outlet 413. The ventilation housing 42 is arranged along the length of the housing 1 with the volute body 41. The ventilation housing 42 includes at least a second air inlet 421 and a pressure stabilizing hole 422.

[0318] The volute body 41 and the ventilation shell 42 are connected, forming a fresh air cavity that connects the second air inlet 421 and the second air outlet 413. The pressure stabilizing hole 422 connects the indoor space and the fresh air cavity, so that when the first fan 8 rotates, indoor air can enter the fresh air cavity through the pressure stabilizing hole 422 and flow into the room through the second air outlet 413.

[0319] The first fan 8 is installed inside the fresh air cavity and correspondingly located inside the volute body 41. The first fan 8 can be a centrifugal fan. When the first fan 8 is started, outdoor air is introduced into the fresh air cavity through the second air inlet 421, passes through the first fan 8, and flows into the room through the second air outlet 413. The first fan 8 provides the power for fresh air to flow from the second air inlet 421 to the second air outlet 413.

[0320] The indoor unit 100 of the air conditioner also includes a fresh air duct connecting the indoor and outdoor environments. The fresh air duct passes through a duct installation hole opened in the wall. One end of the fresh air duct faces indoors and is connected to the second air inlet 421 of the fresh air module 4, while the other end faces outdoors and is provided with an air inlet. The fresh air duct is connected to the outdoors through the air inlet. Under the action of the fresh air unit, outdoor fresh air enters the indoor fresh air module 4 from the outside along the fresh air duct and is blown into the room from the second air outlet 413, thereby realizing the introduction of outdoor fresh air into the room.

[0321] The indoor heat exchanger also includes an inner air guide plate and an outer air guide plate 13. The inner air guide plate is located at the first air outlet 12 and inside the casing 1. The outer air guide plate 13 is located at the first air outlet 12 of the indoor unit of the air conditioner. The first air outlet 12 is connected to the first air inlet 11. Driven by the first fan 3, indoor air enters the casing 1 through the first air inlet 11, flows through the indoor heat exchanger, and is discharged into the indoor space through the first air outlet 12.

[0322] In the indoor unit 100 of the air conditioner, the inner air guide plate can swing back and forth to swing and sweep the indoor air from side to side. The outer air guide plate 13 can rotate up and down to swing and sweep the indoor air and adjust the direction of the airflow from the first air outlet 12.

[0323] An air conditioner also includes a controller, which is a device that generates operation control signals based on instruction operation codes and timing signals to instruct the air conditioner to execute control commands. For example, in response to a power-on or power-off command issued by a user, the controller can perform an operation related to the object selected by the power-on or power-off command.

[0324] The first drive shaft 7 is disposed between the first fan 8 and the first fan 3. The first drive shaft 7 is used to connect the first fan 8 and the first fan 3. The rotation axis of the first drive shaft 7 is coaxial with the rotation axis of the first fan 8 and the rotation axis of the first fan 3.

[0325] In the indoor unit of the air conditioner, a single first motor 5 is configured to drive the first fan 3 and the first fan 8 to operate synchronously. The first motor 5 can be a single-shaft motor or a dual-shaft motor.

[0326] When the first motor 5 is a single-shaft motor, it is connected to the end of the first fan 3 furthest from the first fan 8. The output shaft of the first motor 5 is connected to the first fan 3, and the first motor 5 drives the first fan 3 to rotate, thereby causing the first fan 3 to drive the first fan 8 to rotate synchronously via the first drive shaft 7. When the first motor 5 is a dual-shaft motor, it includes a first motor shaft and a second motor shaft, which are coaxially arranged. The first motor shaft is connected to the first fan 3, and the second motor shaft is connected to the first fan 8, so that the first motor 5 can drive the first fan 3 and the first fan 8 to rotate synchronously.

[0327] It should be noted that when the first motor 5 is a single-shaft motor, the first motor 5 is located at one end of the first fan 4 along the length of the casing 1. When the first motor 5 is a dual-shaft motor, the first motor 5 is located between the first fan 4 and the first fan 8 along the length of the casing 1.

[0328] The fresh air module 4 is equipped with a baffle 10, which is located at the second air inlet 421. The baffle 10 can be slidably opened or closed at the second air inlet 421.

[0329] When a user does not wish to introduce fresh air into the room but only wants to turn on the first fan 3 to exchange heat with the indoor air, the baffle 10 slides to close the second air inlet 421 to prevent the introduction of fresh air into the room. At this time, the rotation of the first fan 3 drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives indoor air to enter the volute body 41 through the pressure stabilizing hole 422. The indoor air entering the volute body 41 is then discharged into the room through the second air outlet 413. This avoids the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the aerodynamic noise problem that would occur when the first fan 8 rotates.

[0330] In some embodiments, the air conditioner indoor unit 100 further includes a second motor 103 and a gear 102.

[0331] The second motor 103 is fixedly connected to the volute body 41. The gear 102 is rotatably connected to the volute body 41, and the output shaft of the second motor 103 is connected to the rotation shaft of the gear 102.

[0332] A rack portion 101 is provided on the baffle 10. The rack portion 101 is located on the side of the baffle 10 close to the gear 102. The rack portion 101 meshes with the gear 102. The rack portion 101 extends in the reciprocating sliding direction of the baffle 10.

[0333] The output shaft of the second motor 103 rotates to drive the gear 102 to rotate. The gear 102 meshes with the rack 101 to drive the baffle 10 to slide back and forth. The baffle 10 opens or closes the second air inlet 421 by sliding back and forth.

[0334] In some embodiments, the volute body 41 and the ventilation shell 42 are connected, and a second air inlet 421 is formed at the connection between the volute body 41 and the ventilation shell 42. The second air inlet 421 is at least partially disposed on the ventilation shell 42 and at least partially disposed on the volute body 41.

[0335] In some embodiments, the volute body 41 includes a first shell 411 and a second shell 412, which are connected to form an integral volute body 41. A second air outlet 413 is formed at the connection between the first shell 411 and the second shell 412. The second air outlet 413 is at least partially disposed on the first shell 411 and at least partially disposed on the second shell 412.

[0336] The second shell 412 is provided with an air intake 414, and the fresh air outlet is connected to the air intake 414, so that the indoor air entering the ventilation shell 42 from the second air inlet 421 enters the volute through the air intake 414, and enters the room through the second air outlet 413 under the drive of the first fan 8 inside the volute body 41.

[0337] In some embodiments, a first buckle 43 is provided on the outer wall of the first shell 411, and a first hook 45 is provided on the outer wall of the second shell 412 connected to the first shell 411. The first hook 45 is engaged with the first buckle 43 to fix the second shell 412 and the first shell 411 together. Further, the first shell 411 and the second shell 412 are connected and fixed by a fastener, which is a screw. The screw passes through the first shell 411 and the second shell 412 to further fix the first shell 411 and the second shell 412. Alternatively, the outer wall of the first shell 411 may also be provided with a first hook 45, and the outer wall of the second shell 412 may also be provided with a first buckle 43.

[0338] A second hook 46 is provided on the outer wall of the second shell 412 connected to the ventilation shell 42, and a second buckle 44 is provided on the outer wall of the ventilation shell 42 connected to the second shell 412. The second hook 46 is fastened into the second buckle 44 to fix the second shell 412 and the ventilation shell 42 in place. The second air inlet 421 is connected to the air intake 414. The second shell 412 and the ventilation shell 42 are further connected and fixed by a fastener, which is a screw. The screw passes through the second shell 412 and the ventilation shell 42 to further fix the second shell 412 and the ventilation shell 42 in place. Alternatively, a first buckle 43 and a first hook 45 may also be provided on the outer wall of the second shell 412 connected to the ventilation shell 42.

[0339] In some embodiments, a first guide rail 423 is provided on the ventilation housing 42, and a second guide rail 424 is provided on the second housing 412 of the volute body 41. The first guide rail 423 and the second guide rail 424 are disposed inside the fresh air module 4 and are arranged parallel to each other. The two opposite sides of the baffle 10 are respectively fitted into the first guide rail 423 and the second guide rail 424, so that the baffle 10 is slidably connected to the first guide rail 423 and the second guide rail 424. The first guide rail 423 and the second guide rail 424 extend in a direction not perpendicular to the plane where the second air inlet 421 is located, so that the baffle 10 can slide to close the second air inlet 421 or slide to open the second air inlet 421 along the extension direction of the first guide rail 423 and the second guide rail 424.

[0340] In a direction perpendicular to the plane where the second air inlet 421 is located, the second guide rail 424 is at least partially configured to correspond to the second air inlet 421, such that when the baffle 10 slides to close the second air inlet 421, the baffle 10 is at least partially configured to correspond to the second air inlet 421 in a direction perpendicular to the plane where the second air inlet 421 is located, which is beneficial for the baffle 10 to close the second air inlet 421.

[0341] In some embodiments, the ventilation housing 42 is provided with a first inlet 427, and the second housing 412 is provided with a second inlet 428. The first inlet 427 and the second inlet 428 are connected and cooperate to form a second air inlet 421. When assembling the baffle 10, the baffle 10 is first assembled in the first guide rail 423 or the second guide rail 424, and then the ventilation housing 42 and the second housing 412 are connected to restrict the baffle 10 within the first guide rail 423 and the second guide rail 424, so that the baffle 10 can only slide back and forth along the extension direction of the first guide rail 423 or the second guide rail 424.

[0342] When the fresh air function is turned on, the second motor 103 drives the gear 102 to rotate in the forward direction. The gear 102 meshes with the rack 101 to drive the baffle 10 to slide. By driving the baffle to move along the first guide rail 423, the second air inlet is opened, thereby controlling the outdoor fresh air to enter the room.

[0343] When the fresh air function is turned off, the second motor 103 drives the gear 102 to rotate in the opposite direction. The gear 102 meshes with the rack 101 to drive the baffle 10 to slide. By driving the baffle to move along the first guide rail 423, the second air inlet 421 is closed, preventing fresh air from flowing back into the room. This reduces indoor fresh air noise and wind sensation when the fresh air function is not turned on, and improves the user experience.

[0344] When the fresh air system is not activated, the first fan 8 is connected to the first fan 3 via the first drive shaft 7, causing the first fan 8 to rotate synchronously when the first fan 3 rotates. When the user does not want to introduce fresh air into the room but only wants to turn on the first fan 3 to exchange heat with the indoor air, the baffle 10 slides to close the second air inlet 421 to prevent the introduction of fresh air into the room. At this time, the rotation of the first fan 3 drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives indoor air to enter the volute body 41 through the pressure stabilizing hole 422. The indoor air entering the volute body 41 is then discharged into the room through the second air outlet 413, avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, and thus avoiding the aerodynamic noise problem that occurs when the first fan 8 rotates.

[0345] See Figures 56-58 In some embodiments, a first clearance portion 425 is provided on the outer wall of the ventilation housing 42 connected to the second housing 412, and a second clearance portion 426 is provided at the connection point of the second housing 412 connected to the ventilation housing 42. After the ventilation housing 42 and the second housing 412 are connected, the first clearance portion 425 and the second clearance portion 426 are connected to form a clearance groove. At least a portion of the rack is disposed in the clearance groove, which is located on one side of the second air inlet. The rack is driven by the second motor 103 to reciprocate within the clearance groove.

[0346] See Figures 56-60 In some embodiments, the ventilation housing 42 is further provided with a first notch 429, and the second housing 412 is further provided with a second notch 416. After the ventilation housing 42 and the second housing 412 are connected, the first notch 429 and the second notch 416 are connected to form a purification port, and the purification module is inserted into the fresh air module 4 through the purification port.

[0347] The purification module includes a purification frame 9 and a filter. The filter is mounted on the purification frame 9 and is used to filter and purify the fresh air, preventing impurities and lint in the fresh air from entering the room through the volute. A third guide rail 4111 is provided inside the fresh air module 4. The third guide rail 4111 can be mounted on the ventilation housing 42 or the second housing 412. The third guide rail 4111 extends from the inside of the ventilation housing 42 to the purification port. The purification frame 9 can be inserted into the ventilation housing 42 along the third guide rail 4111, enabling the purification module to be slidably disassembled and installed, facilitating user self-disassembly, cleaning, and replacement of the filter.

[0348] In some embodiments, the third guide rail 4111 is connected to the side of the second guide rail 424 away from the second air inlet 421. The third guide rail 4111 and the second guide rail 424 are integrally formed, which can save the layout space in the ventilation shell 42 and the volute body 41, and rationally plan the structural layout to improve space utilization.

[0349] In some embodiments, the interior of the ventilation housing 42 can be connected to the first air inlet 11 through the pressure stabilizing hole 422, thereby allowing the interior of the ventilation housing 42 to be connected to the room through the pressure stabilizing hole 422, so that indoor air can flow into the fresh air cavity through the pressure stabilizing hole 422, and indoor air flows into the room through the second air outlet 413 under the drive of the first fan 8.

[0350] In some embodiments, a pressure stabilizing through hole is provided on the housing 1. The pressure stabilizing through hole is located on the side of the housing 1. The pressure stabilizing through hole can also be located on the upper or lower part of the housing 1. The pressure stabilizing through hole is connected to the indoor environment. The pressure stabilizing through hole is connected to the pressure stabilizing hole 422 inside the housing 1, so that indoor air can flow through the pressure stabilizing through hole to the pressure stabilizing hole 422 and enter the fresh air cavity through the pressure stabilizing hole 422. Under the drive of the first fan 8, the indoor air flows into the room through the second air outlet 413.

[0351] See Figures 53-55 In some embodiments, the central part of the first fan 8 is provided with a shaft connection part 81, which is used to connect the first drive shaft 7. The end of the first drive shaft 7 away from the first fan 3 is inserted into the shaft connection part 81 to connect to the shaft connection part 81.

[0352] The first shell 411 of the volute body 41 is provided with a connecting hole 417, which communicates with the interior of the volute body 41. The connecting hole 417 is correspondingly provided with the shaft connecting part 81, and the opening of the connecting hole 417 faces the first fan 3. The first drive shaft 7 passes through the connecting hole 417 and is provided in the shaft hole so that the first drive shaft 7 is connected to the first fan 8. The rotation of the first drive shaft 7 drives the first fan 8 to rotate synchronously.

[0353] See Figures 61-65 In some embodiments, a bearing 6 is provided inside the housing 1, and a first drive shaft 7 is fitted with and passes through the bearing 6. The first drive shaft 7 is movably connected to the bearing 6, and the bearing 6 is used to support the rotation of the first drive shaft 7.

[0354] The bearing 6 includes a bearing body 61 and bearing balls 62. The bearing 6 has a connecting cavity 611 that extends through both the bearing body 61 and the bearing balls 62. The two openings of the connecting cavity 611 face the first fan 8 and the first fan 3 respectively. The first drive shaft 7 passes through the connecting cavity 611. It should be noted that the bearing body 61 has an installation space 612 that communicates with the connecting cavity 611 and is located near the first fan 3. The bearing balls 62 are located within the installation space 612.

[0355] See Figures 48-51 In some embodiments, the pressure stabilizing hole 422 is disposed on the ventilation housing 42 on the air inlet side of the first fan 8. The pressure stabilizing hole 422 is disposed away from the second air inlet 421, so that when the baffle 10 slides to close the second air inlet 421, the pressure stabilizing hole 422 remains open. Driven by the rotation of the first fan 8, indoor air can enter the fresh air chamber through the pressure stabilizing hole 422 and then flow out into the room through the second air outlet 413. This avoids the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates.

[0356] As attached Figures 66 to 76 as well as Figure 86 As shown, in an illustrative embodiment of the wall-mounted air conditioner of this utility model, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a volute body 300, a first fan 600, a second fan 200, a first motor 700, a baffle 120, a first drive component 130, and a controller.

[0357] The housing 100 is located at the top of the room or above the room; the housing 100 has a first inner cavity and a second inner cavity along its length; the top of the housing 100 has a first indoor air inlet, and the bottom front side of the housing 100 has a first indoor air outlet 101.

[0358] An indoor heat exchanger is installed 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 airflow.

[0359] The volute body 300 is disposed in the second inner cavity, and the volute body 300 is provided with a second indoor air inlet 900, a second air inlet 110 and a second indoor air outlet 800.

[0360] The first fan 600 is disposed inside the volute body 300; the second fan 200 is disposed inside the first inner cavity and below the indoor heat exchanger; the indoor airflow enters the housing 100 through the first indoor air inlet and is heat-exchanged by the indoor heat exchanger before being output from the first indoor air outlet 101.

[0361] The first motor 700 drives the second fan 200 and the first fan 600 to rotate synchronously; the baffle 120 is set on the volute body 300;

[0362] The first driving member 130 is used to drive the baffle 120 to move so that the baffle 120 opens the second indoor air inlet 900 and closes the second air inlet 110, or closes the second indoor air inlet 900 and opens the second air inlet 110.

[0363] In the first operating mode, the baffle 120 moves to the position of closing the second indoor air inlet 900 and opening the second air inlet 110; under the action of the first fan 600, outdoor fresh air enters the volute body 300 through the second air inlet 110 and is output through the second indoor air outlet 800.

[0364] In the second operating mode, the baffle 120 moves to the position of closing the second air inlet 110 and opening the second indoor air inlet 900; under the action of the first fan 600, the indoor airflow enters the volute body 300 through the second indoor air inlet 900 and is output through the second indoor air outlet 800.

[0365] In different modes, the control baffle 120 moves to open or close the second indoor air inlet 900 and the second air inlet 110 to control the flow direction of outdoor fresh air and indoor airflow.

[0366] The controller is configured to enter a first operating mode upon receiving a first signal, and control the baffle 120 to move to the position of closing the second indoor air inlet 900 and opening the second air inlet 110; under the action of the first fan 600 rotating, outdoor fresh air enters the volute body 300 through the second air inlet 110 and is output through the second indoor air outlet 800.

[0367] Upon receiving the second signal, the system enters the second operating mode, controlling the baffle 120 to move to the position of closing the second air inlet 110 and opening the second indoor air inlet 900; under the action of the first fan 600, the indoor airflow enters the volute body 300 through the second indoor air inlet 900 and is output through the second indoor air outlet 800.

[0368] With the above scheme, when the fresh air function is not needed, the controller controls the baffle 120 to move and close the second air inlet 110. The indoor airflow enters the second indoor air inlet 900 and is output from the second indoor air outlet 800 under the action of the first fan 600. The air pressure inside the volute body 300 is balanced by the indoor air, thus reducing noise.

[0369] In some embodiments, when a user wants to bring fresh outdoor air into the room, they send a first signal to the controller via a remote control, mobile phone software, or control panel to enter the first operating mode.

[0370] In some embodiments, when a user does not want fresh outdoor air to be introduced into the room, they can send a second signal to the controller via a remote control, mobile phone software, or control panel to enter a second operating mode.

[0371] In some embodiments, the first motor 700 is a coaxial motor, with one end of its output shaft connected to the second fan 200 and the other end connected to the first fan 600. In some embodiments, the output shaft of the first motor 700 is connected to the second fan 200, and the second fan 200 is coaxially connected to a drive shaft, which is connected to the first fan 600.

[0372] In some embodiments, the housing 100 is horizontally positioned and mounted on a wall, with a through-wall pipe passing through the wall to communicate with the outside. The indoor end of the through-wall pipe is connected to and communicates with the second air inlet 110. The output shaft of the first motor 700 has two output ends, and the second fan 200 and the first fan 600 are coaxially connected to the two output ends of the first motor 700, respectively. In the prior art, the first fan 600 and the second fan 200 are usually driven by two separate motors, which is costly. In this application, only one first motor 700 is needed to rotate the first fan 600 and the second fan 200, thus saving costs.

[0373] In the existing technology, when the first motor 700 is running, the second fan 200 and the first fan 600 must rotate synchronously. Therefore, when the user does not want fresh air to be blown into the room through the first fan 600, the usual practice is to directly close the second air inlet 110 using an anti-backflow device. However, since the first fan 600 must rotate, it continues to rotate inside the volute body 300 and outputs airflow through the second indoor air outlet 800, but no fresh air can enter the volute body 300 from the second air inlet 110. As a result, negative pressure is generated inside the volute body 300, and the indoor air will generate turbulence at the second indoor air outlet 800 under the action of air pressure. Moreover, the fresh air from outside will continuously collide with the anti-backflow device, resulting in noise that affects the user experience.

[0374] Furthermore, due to air pressure issues, the resistance experienced by the first fan 600 rotating within the volute body 300 increases, causing the first fan 600 to stall. This stalling of the first fan 600 leads to the first motor 700 operating under overload conditions.

[0375] In this design, when the controller receives the second signal, the baffle 120 moves to the second air inlet 110 to close it. At this time, the second indoor air inlet 900 is opened, and indoor air enters the volute body 300 through the second indoor air inlet 900 and is then input into the room through the second indoor air outlet 800 and the first indoor air outlet 101 under the action of the first fan 600. By utilizing the indoor air to balance the pressure inside the volute body 300, the problems of noise, stalling of the first fan 600, and overload operation of the first motor 700 are solved, while also increasing the output volume of indoor air conditioning air.

[0376] Please refer to Figures 73 to 85 In some embodiments, a filter 500 is provided inside the volute body 300. When the controller receives a second signal, airflow enters the volute body 300 through the first indoor air inlet and the second indoor air inlet 900, is filtered by the filter 500, and then enters the room through the second indoor air outlet 800 and the first indoor air outlet 101. When the controller receives a first signal, outdoor fresh air enters the volute body 300 through the second air inlet 110, is filtered by the filter 500, and then enters the room through the second indoor air outlet 800 and the first indoor air outlet 101. Both indoor air and outdoor fresh air entering the room pass through and are filtered by the filter 500. This improves indoor air quality and enhances the user experience.

[0377] In some embodiments, the filter element 500 divides the interior of the volute body 300 into a second chamber and a first chamber. The second chamber's air inlet 900 and second air inlet 110 communicate with the second chamber, and the second chamber's air outlet 800 communicates with the first chamber. Both outdoor fresh air and indoor air enter the second chamber of the volute body 300, are filtered by the filter element 500, and then enter the first chamber. The air is then discharged into the room through the second chamber's air outlet 800 and the first chamber's air outlet 101, thus completing the filtration of both air and fresh air. The structural design is reasonable and saves space.

[0378] In some embodiments, the first fan 600 has an input end and an output end. The first fan 600 is disposed in a first chamber, with the input end of the first fan 600 facing the first chamber and the output end of the first fan 600 facing the air outlet 800 in the second chamber. When the first motor 700 operates, the first fan 600 and the second fan 200 rotate simultaneously. The airflow entering the second chamber passes through the filter 500 under the action of the first fan 600 and is then output through the air outlet 800 in the second chamber.

[0379] In some embodiments, the first chamber is located between the second chamber and the second fan 200. A first motor 700 is disposed outside the volute body 300, and the end of the first motor 700 facing away from the second fan 200 passes through the volute body 300 and connects to the first fan 600 inside the second chamber. The first fan 600 is a centrifugal fan, with its input end facing away from the first motor 700. An air outlet 800 inside the second chamber is located on any side wall of the second chamber parallel to the axis of the centrifugal fan.

[0380] Please refer to Figures 66 to 89 In some embodiments, the volute body 300 is formed by the snap-fitting of a first half-shell 301, a second half-shell 302, and a third half-shell 303. The second half-shell 302 is disposed on the side of the first half-shell 301 facing away from the second fan 200, and the third half-shell 303 is disposed on the side of the second half-shell 302 facing away from the second fan 200. A first chamber is formed between the first half-shell 301 and the second half-shell 302, and a second chamber is formed between the second half-shell 302 and the third half-shell 303. The first fan 600 can be installed or removed by opening the first half-shell 301 and the second half-shell 302. A filter element 500 is disposed between the second half-shell 302 and the third half-shell 303.

[0381] In some embodiments, the volute body 300 has an insertion space 304 that connects the interior of the volute body 300 to the outside. A frame 400 is detachably inserted into the insertion space 304, and a filter element 500 is disposed within the frame 400. When the frame 400 is fully inserted into the insertion space 304, the second chamber and the first chamber are located on opposite sides of the frame 400 and the filter element 500, respectively. Pulling the frame 400 allows for the insertion or removal of the filter element 500. When the filter element 500 needs to be replaced or cleaned, the frame 400 can be directly pulled out, facilitating operation and improving efficiency.

[0382] Please refer to Figures 66 to 89 In some embodiments, the insertion space 304 is formed on the side wall of the third half-shell 303, and the direction of the insertion space 304 is perpendicular to the axial direction of the first fan 600. When inserting the frame 400, it is inserted from the seam between the first chamber and the second chamber until the frame 400 is fully inserted into the insertion space 304. The frame 400 and the filter 500 within the frame 400 separate the first chamber and the second chamber.

[0383] In some embodiments, the filter element 500 is detachable from the frame 400, and the connection methods between the filter element 500 and the frame 400 include, but are not limited to, pasting, snap-fitting, and plugging.

[0384] Please refer to Figures 66 to 89 In some embodiments, the filter element 500 is a filter screen, which is laid within the frame 400. Filter screens are common filtration devices that can be purchased in bulk at a low cost while providing good filtration performance.

[0385] In some embodiments, the second indoor air inlet 900 and the second air inlet 110 are formed on the same side wall of the volute body 300; the baffle 120 slides or flips on the side wall of the volute body 300 where the second air inlet 110 is formed. The baffle 120 only needs to be flipped or moved to open and close the second indoor air inlet 900 and the second air inlet 110, and only one baffle 120 is needed to achieve this function, reducing costs.

[0386] Please refer to Figures 66 to 89In some embodiments, a first driving member 130 is provided on the volute body 300, and a gear 140 is connected to the output shaft of the first driving member 130. A rack 150 meshing with the gear 140 is provided on the baffle 120. The first driving member 130 drives the gear 140 to rotate, and the gear 140 meshes with the rack 150 to drive the baffle 120 to move along the length direction of the rack 150, thereby opening or closing the second indoor air inlet 900 and the second air inlet 110. The direction of movement of the baffle 120 can be changed by rotating the first driving member 130 in the forward or reverse direction, thereby switching the opening and closing of the second air inlet 110 and the second indoor air inlet 900. The structure is simple and reliable.

[0387] In some embodiments, the first driving member 130 includes, but is not limited to, a motor. The first driving member 130 is disposed outside the volute body 300, and the output shaft of the first driving member 130 extends into the volute body 300. The gear 140 is located in the second chamber and connected to the output shaft of the first driving member 130. The baffle 120 is attached to and slides against the inner sidewall of the second chamber where the second air inlet 110 is provided. The distribution direction of the second air inlet 110 and the second indoor air inlet 900 is the sliding direction of the baffle 120. The baffle 120 can completely close the second air inlet 110 or completely close the second indoor air inlet 900. It can also close half of the second air inlet 110 and half of the second indoor air inlet 900 respectively.

[0388] In some embodiments, when the baffle 120 completely closes the second air inlet 110, the second indoor air inlet 900 is opened.

[0389] Please refer to Figure 87 In some embodiments, when the controller receives the first signal, it controls the first drive unit 130 to start, thereby driving the gear 140 to rotate. The meshing of the gear 140 with the rack 150 causes the baffle 120 to move towards the second indoor air inlet 900, closing the second indoor air inlet 900, and opening the second air inlet 110. Outdoor fresh air enters the second chamber through the second air inlet 110 and, after being filtered by the filter 500, enters the first chamber. The fresh air entering the first chamber is then output through the second indoor air outlet 800 under the action of the first fan 600.

[0390] In some embodiments, the first operating mode is a fresh air mode, intended to introduce outdoor fresh air into the room. When exiting the fresh air mode or not in the fresh air mode, the controller controls the first drive unit 130 to start, driving the gear 140 to rotate. Through the meshing of the gear 140 and the rack 150, the baffle 120 moves towards the second air inlet 110 to close the second air inlet 110, and the second indoor air inlet 900 is opened. Indoor air enters the second chamber through the first indoor air inlet and the second indoor air inlet 900. After entering the second chamber, the air is filtered by the filter 500 and then enters the first chamber. The airflow entering the first chamber is output through the second indoor air outlet 800 under the action of the first fan 600.

[0391] Please refer to Figure 88 This application also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a volute body 300, a first fan 600, a second fan 200, a first motor 700, a baffle 120, a first drive unit 130, and a controller;

[0392] The housing 100 is located at the top of the room or above the room; the housing 100 has a first inner cavity and a second inner cavity along its length; the top of the housing 100 has a first indoor air inlet, and the bottom front side of the housing 100 has a first indoor air outlet 101.

[0393] An indoor heat exchanger is installed 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 airflow.

[0394] The volute body 300 is disposed in the second inner cavity, and the volute body 300 is provided with a second indoor air inlet 900, a second air inlet 110 and a second indoor air outlet 800.

[0395] The first fan 600 is disposed inside the volute body 300; the second fan 200 is disposed inside the first inner cavity and below the indoor heat exchanger; the indoor airflow enters the housing 100 through the first indoor air inlet and is heat-exchanged by the indoor heat exchanger before being output from the first indoor air outlet 101.

[0396] The first motor 700 drives the second fan 200 and the first fan 600 to rotate synchronously; the baffle 120 is set on the volute body 300;

[0397] The first driving member 130 is used to drive the baffle 120 to move so that the baffle 120 opens the second indoor air inlet 900 and closes the second air inlet 110, or closes the second indoor air inlet 900 and opens the second air inlet 110, or opens the second indoor air inlet 900 and the second air inlet 110 at the same time.

[0398] In the third operating mode, the control baffle 120 moves to a position where the second air inlet 110 and the second indoor air inlet 900 are simultaneously opened. When entering the mixed air mode, the baffle 120 can partially open the second air inlet 110 and the second indoor air inlet 900, so that indoor air enters the volute body 300 through the second indoor air inlet 900, and outdoor fresh air enters the volute body 300 through the second air inlet 110. The indoor air entering the volute body 300 mixes with the fresh air entering the volute body 300 and is filtered by the filter element 500 before being output to the room through the second indoor air outlet 800 and the first indoor air outlet 101.

[0399] In some embodiments, when a user wants to mix outdoor fresh air with indoor airflow, a third signal is sent to the controller via a remote control, mobile phone software, or control panel. Upon receiving the third signal, the controller enters a third operating mode.

[0400] In some embodiments, when entering the mixed air mode, the controller controls the first drive unit 130 to start, thereby driving the gear 140 to rotate. The meshing of the gear 140 with the rack 150 causes the baffle 120 to be positioned between the second air inlet 110 and the second indoor air inlet 900. The baffle 120 partially blocks the second indoor air inlet 900 and the second air inlet 110. Indoor airflow and outdoor fresh air enter the second chamber and mix. The mixed airflow, under the action of the first fan 600, is filtered by the filter 500 and enters the first chamber. The airflow entering the first chamber is then output through the second indoor air outlet 800 under the action of the first fan 600.

[0401] In some embodiments, a groove is formed on the inner wall of the volute body 300, and a portion of the baffle 120 slides within the groove. The length direction of the groove is the same as the moving direction of the baffle 120. The sliding of the baffle 120 within the groove restricts the moving direction of the baffle 120, ensuring accurate positioning of the baffle 120 during movement and improving the stability of the baffle 120 during operation.

[0402] In some embodiments, there are two slide grooves: one slide groove is formed on the side of the second half-shell 302 facing the third half-shell 303, and the other slide groove is formed between the third half-shell 303 and the second half-shell 302. The two sides of the baffle 120 slide in the two slide grooves respectively. The two slide grooves further restrict the sliding direction of the baffle 120. When installing the baffle 120, the baffle 120 is positioned between the second half-shell 302 and the third half-shell 303, and the third half-shell 303 and the second half-shell 302 are gradually brought closer together and connected, so that the two sides of the baffle 120 are respectively located in the two slide grooves.

[0403] Please refer to the appendix. Figure 89In some embodiments of this application, a second driving member is provided on the volute body 300, and the baffle 120 is directly connected to the output shaft of the second driving member. The second air inlet 110 and the second indoor air inlet 900 are arranged adjacent to each other, and the second driving member is disposed between the second air inlet 110 and the second indoor air inlet 900.

[0404] In some embodiments, the first motor 700 is directly connected to the second fan 200, and the second fan 200 is connected to the first fan 600 through a connecting shaft, so that the first motor 700 drives the second fan 200 and the first fan 600 to rotate synchronously.

[0405] In some embodiments, the first motor 700 is directly connected to the first fan 600, and the first fan 600 and the second fan 200 are connected through a connecting shaft, so that the first motor 700 drives the second fan 200 and the first fan 600 to rotate synchronously.

[0406] As attached Figures 90 to 97 and Figure 107 As shown in an illustrative embodiment of the wall-mounted air conditioner of this utility model, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a second fan 200, a volute body 300, a first fan 500, a first motor 600, a baffle 160, a sealing plate 800, and a drive module.

[0407] The housing 100 is located at the top of the room or above the room; the housing 100 has a first inner cavity and a second inner cavity along its length; the top of the housing 100 has an indoor air inlet, and the bottom front side of the housing 100 has an indoor air outlet.

[0408] An indoor heat exchanger is installed 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 airflow.

[0409] The volute body 300 is disposed in the second inner cavity, and the volute body 300 is provided with a second air inlet 150 and a second air outlet 700.

[0410] The first fan 500 is installed inside the volute body 300; the second fan 200 is installed inside the first inner cavity and is located below the indoor heat exchanger; the indoor airflow enters the housing 100 through the indoor air inlet and is heat-exchanged by the indoor heat exchanger before being output from the indoor air outlet.

[0411] The first motor 600 drives the second fan 200 and the first fan 500 to rotate synchronously via a connecting shaft;

[0412] A baffle 160 is disposed on the volute body 300; a sealing plate 800 is disposed on the volute body 300; a drive module is used to drive the baffle 160 to open or close the second air inlet 150, and to drive the sealing plate 800 to open or close the second air outlet 700.

[0413] In the first operating mode, the drive module moves the baffle 160 to the position where the second air inlet 150 is opened, and controls the sealing plate 800 to open the second air outlet 700; under the action of the first fan 500 rotating, outdoor fresh air enters the volute body 300 through the second air inlet 150 and is output through the second air outlet 700.

[0414] In the second operating mode, the drive module moves the baffle 160 to the position of closing the second air inlet 150, and controls the drive module to drive the sealing plate 800 to close the second air outlet 700; the inside of the fresh air module is in a sealed state.

[0415] With the above solution, when not in fresh air mode, the drive module drives the baffle 160 and the sealing plate 800 to respectively close the second air inlet 150 and the second air outlet 700, thereby sealing the volute body 300 and reducing noise. At the same time, the sealing plate 800 closes the second air outlet 700 to prevent dust from entering the volute body 300.

[0416] In some embodiments, the wall-mounted air conditioner also includes a controller.

[0417] In some embodiments, when a user wants to bring fresh outdoor air into the room, they send a first signal to the controller via a remote control, mobile phone software, or control panel, and the wall-mounted air conditioner enters the first operating mode.

[0418] In some embodiments, when the user does not want fresh outdoor air to be introduced into the room, a second signal is sent to the controller via a remote control, mobile phone software, or control panel, and the wall-mounted air conditioner enters a second operating mode.

[0419] In some embodiments, the first operating mode is a fresh air mode, used to introduce fresh outdoor air into the room.

[0420] In some embodiments, the first motor 600 is a coaxial motor, with one end of its output shaft connected to the second fan 200 and the other end connected to the first fan 500. In some embodiments, the output shaft of the first motor 600 is connected to the second fan 200, and the second fan 200 is coaxially connected to a drive shaft, which is connected to the first fan 500.

[0421] In some embodiments, the housing 100 is horizontally positioned and mounted on a wall, with a through-wall pipe passing through the wall to connect to the outside. The indoor end of the through-wall pipe is connected to and communicates with the second air inlet 150. The output shaft of the first motor 600 has two output ends, and the second fan 200 and the first fan 500 are coaxially connected to the two output ends of the first motor 600, respectively. In the prior art, the first fan 500 and the second fan 200 are usually driven by two separate motors, which is costly. In this application, only one first motor 600 is needed to rotate the first fan 500 and the second fan 200, saving costs.

[0422] In existing technology, when the first motor 600 is running, the second fan 200 and the first fan 500 must rotate synchronously. Therefore, when a user does not want fresh air to be blown into the room through the first fan 500, the usual practice is to directly seal the second air inlet 150 using an anti-backflow device. However, because the first fan 500 must rotate, it continuously rotates within the volute body 300 and outputs airflow through the second air outlet 700, but no fresh air can enter the volute body 300 from the second air inlet 150. This creates negative pressure within the volute body 300, causing turbulence in the indoor air at the second air outlet 700 due to air pressure. Furthermore, fresh outdoor air continuously impacts the anti-backflow device, resulting in noise that affects the user experience. Due to the air pressure issue, the resistance experienced by the rotating first fan 500 within the volute body 300 increases, potentially causing it to stall. This stalling of the first fan 500 leads to overload operation of the first motor 600.

[0423] In this design, when the wall-mounted air conditioner is not in fresh air mode, the drive module moves the sealing plate 800 to seal the second air outlet 700, and the baffle 160 moves to the second air inlet 150 to seal it as well. The sealing plate 800 and baffle 160 create an independent cavity within the volute body 300, preventing negative pressure and reducing noise. Even if noise is present, it remains within the volute body 300, preventing it from entering the room through the second air outlet 700, further reducing noise and improving the user experience.

[0424] Please refer to Figures 90 to 109 In some embodiments, the drive module includes a first drive member 110, wherein the sealing plate 800 is disposed at the second air outlet 700; the first drive member 110 is disposed on the volute body 300 and close to the second air outlet 700; the first drive member 110 drives the sealing plate 800 to rotate to open or close the second air outlet 700. Activating the first drive member 110 directly drives the sealing plate 800 to rotate to open or close the second air outlet 700, resulting in a simple structure and a simple movement process.

[0425] In some embodiments, the drive module further includes a first gear 120. A first drive member 110 is installed at a second air outlet 700 within the volute body 300, and the output shaft of the first drive member 110 is perpendicular to the opening direction of the second air outlet 700. The first gear 120 is coaxially fixed to the output shaft of the first drive member 110. A sealing plate 800 is hinged to the second air outlet 700, and the sealing plate 800 is hinged to the volute body 300 via a rotating shaft 900. A transmission gear 130 is coaxially fixed on the rotating shaft 900. When the first gear 120 meshes with the transmission gear 130, the first drive member 110 is activated, and the output shaft of the first drive member 110 drives the first gear 120 to rotate. The first gear 120 meshes with the transmission gear 130 to cause the sealing plate 800 to rotate.

[0426] Please refer to Figures 90 to 109 In some embodiments, the output shaft of the first drive unit 110 is directly connected to the sealing plate 800. When the first drive unit 110 is activated, its output shaft directly drives the sealing plate 800 to rotate.

[0427] In some embodiments, the first driving element 110 includes, but is not limited to, a motor or electric motor.

[0428] In some embodiments, when there is only one sealing plate 800, the area of ​​the sealing plate 800 is larger than the area of ​​the second air outlet 700, and the sealing plate 800 can directly seal the second air outlet 700.

[0429] In some embodiments, multiple sealing plates 800 are spaced apart along the length of the second air outlet 700, and one end of each sealing plate 800 is provided with a transmission gear 130; the drive module also includes a first rack 140; the first gear 120 is disposed on the output shaft of the first drive member 110; the first rack 140 slides on the volute body 300, and the first gear 120 and each transmission gear 130 mesh with the first rack 140. When the first drive member 110 is started, the output shaft of the first drive member 110 drives the first gear 120 to rotate, the first gear 120 meshes with the first rack 140 to drive the first rack 140 to move, the movement of the first rack 140 drives each transmission gear 130 meshing with it to rotate, and the rotation of each gear respectively drives the corresponding sealing plate 800 to flip open or close the second air outlet 700.

[0430] Please refer to Figures 90 to 109In some embodiments, the opening direction of the second air outlet 700 is perpendicular to its length direction. The length directions of each sealing plate 800 are parallel and perpendicular to the length direction of the second air outlet 700. Each sealing plate 800 is rotatably connected to the second air outlet 700 via a rotating shaft 900. A first driving member 110 is located near the side of the sealing plate 800, and a transmission gear 130 is coaxially fixed to the end of the rotating shaft 900 near the first driving member 110 on the corresponding sealing plate 800. The length direction of the first rack 140 is the same as the direction in which the sealing plates 800 are spaced apart. The first gear 120 meshes with the first rack 140 and drives the first rack 140 to move along its length direction. When the first rack 140 moves, it drives each transmission gear 130 to rotate, thereby controlling the rotation of the sealing plates 800. When the width direction of each sealing plate 800 is in the same plane, each sealing plate 800 closes the second air outlet 700.

[0431] In some embodiments, the air output through the second air outlet 700 can adjust the airflow direction according to the flipping direction of the sealing plate 800.

[0432] In some embodiments, toothed grooves are provided on both sides of the first rack 140; each transmission gear 130 is disposed on one side of the first rack 140 and meshes with the first rack 140. The first gear 120 meshes with the side of the first rack 140 away from the transmission gear 130 and meshes with the first rack 140. This method saves space.

[0433] Please refer to Figures 90 to 109 In some embodiments, a mounting frame is provided at the second air outlet 700; the two ends of each sealing plate 800 rotate on opposite side walls within the mounting frame; a transmission cavity is provided on the mounting frame; the first rack 140, the first gear 120, and the transmission gear 130 are all disposed within the transmission cavity. The transmission cavity prevents the first rack 140, the first gear 120, and the transmission gear 130 from separating from each other. Furthermore, the transmission cavity restricts the movement direction of the first rack 140, improving structural stability.

[0434] In some embodiments, both ends of the rotating shaft 900 on each sealing plate 800 penetrate the mounting frame. A transmission cavity is formed in any one of the outer walls of the mounting frame through which the rotating shaft 900 passes. The end of the rotating shaft 900 near the transmission cavity extends into the transmission cavity, and the transmission gear 130 is located inside the transmission cavity. The first rack 140 slides along its length in the transmission cavity, and the first rack 140 reciprocates to adjust the clockwise or counterclockwise rotation of the sealing plate 800.

[0435] In some embodiments, a sealing ring is provided between the sealing plate 800 and the second air outlet 700. With the sealing ring, when the sealing plate 800 closes the second air outlet 700, the sealing ring is clamped between the sealing plate 800 and the second air outlet 700, improving the sealing performance of the sealing plate 800 on the second air outlet 700, further reducing noise transmission, and improving the user experience.

[0436] In some embodiments, the sealing ring is located on the side of the mounting frame away from the volute body 300, so that when the sealing plate 800 is flipped to fit against the mounting frame, the sealing performance is improved by the sealing ring between the sealing plate 800 and the mounting frame.

[0437] Please refer to Figures 90 to 109 In some embodiments, a second driving member 170 is provided on the volute body 300, and the output shaft of the second driving member 170 is connected to a second gear 180. A second rack 190 is provided on the baffle 160 to mesh with the second gear 180. The second driving member 170 drives the second gear 180 to rotate, and the second gear 180 meshes with the second rack 190 to drive the baffle 160 to move along the length direction of the second rack 190, so as to open or close the second air inlet 150. The second driving member 170 is activated to drive the second gear 180 to rotate. By rotating the second driving member 170 forward or backward, the moving direction of the baffle 160 can be changed, so as to open or close the second air inlet 150.

[0438] In some embodiments, the second drive member 170 is disposed outside the volute body 300, the output shaft of the second drive member 170 extends into the volute body 300, and the second gear 180 is located inside the volute body 300 and connected to the output shaft of the second drive member 170. The baffle 160 is attached to and slides against the inner sidewall of the volute body 300 where the second air inlet 150 is located. The baffle 160 can completely close the second air inlet 150.

[0439] Please refer to Figures 90 to 109 In some embodiments, a filter element is provided inside the volute body 300, which divides the interior of the volute body 300 into a second chamber and a first chamber. A second air inlet 150 communicates with the second chamber, and a second air outlet 700 communicates with the first chamber. When fresh outdoor air enters the room, it passes through and is filtered by the filter element, improving indoor air quality and enhancing the user experience.

[0440] In some embodiments, the volute body 300 is formed by the snap-fitting of a first half-shell 301, a second half-shell 302, and a third half-shell 303. The second half-shell 302 is disposed on the side of the first half-shell 301 facing away from the second fan 200, and the third half-shell 303 is disposed on the side of the second half-shell 302 facing away from the second fan 200. A first chamber is formed between the first half-shell 301 and the second half-shell 302, and a second chamber is formed between the second half-shell 302 and the third half-shell 303. The first fan 500 can be installed or removed by opening the first half-shell 301 and the second half-shell 302. A filter element is disposed between the second half-shell 302 and the third half-shell 303.

[0441] In some embodiments, the volute body 300 has an insertion space 304 that connects the interior of the volute body 300 to the outside. A frame 400 is detachably inserted into the insertion space 304, and a filter element is disposed within the frame 400. When the frame 400 is fully inserted into the insertion space 304, the second chamber and the first chamber are located on opposite sides of the frame 400 and the filter element, respectively. Pulling the frame 400 allows for the insertion or removal of the filter element, enabling its installation or removal. When the filter element needs to be replaced or cleaned, the frame 400 can be directly pulled out, facilitating operation and improving efficiency.

[0442] Please refer to Figures 90 to 109 In some embodiments, the insertion space 304 is formed on the side wall of the third half-shell 303, and the direction of the insertion space 304 is perpendicular to the axial direction of the first fan 500. When inserting the frame 400, it is inserted from the seam between the first chamber and the second chamber until the frame 400 is fully inserted into the insertion space 304. The frame 400 and the filter element within the frame 400 separate the first chamber and the second chamber.

[0443] In some embodiments, the filter element is detachable from the frame 400, and the connection method between the filter element and the frame 400 includes, but is not limited to, pasting, snap-fitting, and plugging.

[0444] Please refer to Figures 90 to 109 In some embodiments, the filter element is a filter screen, which is laid within the frame 400. Filter screens are common filtration devices that can be purchased in bulk at a low cost while providing good filtration performance.

[0445] In some embodiments, a groove is formed on the inner wall of the volute body 300, and a baffle 160 partially slides within the groove. The length direction of the groove is the same as the moving direction of the baffle 160. The sliding of the baffle 160 within the groove restricts the moving direction of the baffle 160, ensuring accurate positioning of the baffle 160 during movement and improving the stability of the baffle 160 during operation.

[0446] In some embodiments, there are two slides: one slide is formed on the side of the second half-shell 302 facing the third half-shell 303, and the other slide is formed between the third half-shell 303 and the second half-shell 302. The baffle 160 slides on both sides of the two slides respectively. The two slides further restrict the sliding direction of the baffle 160. When installing the baffle 160, the baffle 160 is positioned between the second half-shell 302 and the third half-shell 303, and the third half-shell 303 and the second half-shell 302 are gradually brought closer together and connected, so that the two sides of the baffle 160 are respectively located in the two slides.

[0447] Please refer to the appendix. Figures 107 to 109 In some embodiments, in the first operating mode, the first driving member 110 is controlled to rotate to drive the sealing plate 800 to flip and open the second air outlet 700; the second driving member 170 is controlled to rotate, and the second gear 180 and the second rack 190 are engaged to move the baffle 160 to open the second air inlet 150; when exiting the fresh air mode, the first driving member 110 is controlled to rotate to drive the sealing plate 800 to flip and close the second air outlet 700; the second driving member 170 is controlled to rotate, and the second gear 180 and the second rack 190 are engaged to move the baffle 160 to close the second air inlet 150.

[0448] In some embodiments, a carbon dioxide sensor is provided on the housing 100, and the control is configured to use the carbon dioxide sensor to detect the indoor carbon dioxide level. When the detected carbon dioxide level exceeds a first preset value, the fresh air mode is activated; when the detected carbon dioxide level is below a second preset value, the fresh air mode is deactivated. The indoor carbon dioxide concentration is detected by the carbon dioxide sensor, and the wall-mounted air conditioner is controlled to enter or exit the fresh air mode based on the indoor carbon dioxide concentration.

[0449] In some embodiments, the specific values ​​of the first preset value and the second preset value are either factory presets or user settings.

[0450] In some embodiments, the values ​​of the first preset value and the second preset value can be the same.

[0451] In some embodiments, the housing 100 is provided with an air conditioning outlet, and the second fan outputs the air conditioning air after heat exchange by the indoor heat exchanger to the room through the air conditioning outlet. The housing 100 is provided with an air guide plate, which is located at the air conditioning outlet and adjusts the direction of the air conditioning air.

[0452] This application also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a second fan 200, a volute body 300, a first fan 500, a first motor 600, a baffle 160, a sealing plate 800, a drive module, and a controller.

[0453] The housing 100 is located at the top of the room or above the room; the housing 100 has a first inner cavity and a second inner cavity along its length; the top of the housing 100 has an indoor air inlet, and the bottom front side of the housing 100 has an indoor air outlet.

[0454] An indoor heat exchanger is installed 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 airflow.

[0455] The volute body 300 is disposed in the second inner cavity, and the volute body 300 is provided with a second air inlet 150 and a second air outlet 700.

[0456] The first fan 500 is installed inside the volute body 300; the second fan 200 is installed inside the first inner cavity and is located below the indoor heat exchanger; the indoor airflow enters the housing 100 through the indoor air inlet and is heat-exchanged by the indoor heat exchanger before being output from the indoor air outlet.

[0457] The first motor 600 drives the second fan 200 and the first fan 500 to rotate synchronously via a connecting shaft;

[0458] A baffle 160 is disposed on the volute body 300; a sealing plate 800 is disposed on the volute body 300; a drive module is used to drive the baffle 160 to open or close the second air inlet 150, and to drive the sealing plate 800 to open or close the second air outlet 700.

[0459] The controller is configured to: upon receiving a first signal, control the drive module to open the second air inlet 150 and the second air outlet 700; under the action of the first fan 500 rotating, outdoor fresh air enters the volute body 300 through the second air inlet 150 and is output through the second air outlet 700.

[0460] Upon receiving the second signal, the control drive module closes the second air inlet 150 and the second air outlet 700; the interior of the fresh air module is in a sealed state.

[0461] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: A casing, the casing comprising at least a first air inlet and a first air outlet, the first air inlet and the first air outlet respectively extending along the length direction of the casing; an indoor heat exchanger, which is arranged in the casing; a first fan, which is arranged in the housing and below the indoor heat exchanger; the first fan extends along the length direction of the housing; the first fan operates to introduce indoor air into the housing from the first air inlet, and after heat exchange in the indoor heat exchanger, the indoor air flows into the room from the first air outlet; The volute body is arranged inside the casing and arranged along the length direction of the casing with the first fan, and the volute body includes: A first shell, which includes at least a second air outlet; a second shell connected to a side of the first shell away from the first fan; A first fan, which is arranged in the volute body and is used to introduce outdoor fresh air into the room; a first drive shaft, which is used to connect the first fan and the second fan, and the rotation axis of the first drive shaft is coaxially arranged with the rotation axis of the first fan and the rotation axis of the first fan; an axial hole, which is opened in the volute body, and the axial hole is used for the first drive shaft to pass through; the diameter of the axial hole is not more than 1.5 times the diameter of the first drive shaft; a first motor connected to an end of the first fan away from the first fan, the first motor driving the first fan to rotate, and the first fan driving the first fan to rotate via the first drive shaft; A ventilation shell connected to a side of the second shell away from the first shell, the ventilation shell comprising at least a second air inlet and a purification air inlet; A guide rail, which is arranged on the ventilation shell and / or the second shell; a baffle, the baffle cooperating with the guide rail to slide along the guide rail; A first stopper, a second stopper and a third stopper are respectively arranged between the ventilation shell and the second shell, and the third stopper is located between the purification air inlet and the second air inlet; When the baffle plate slides to abut against the first stopper, the third stopper abuts against the baffle plate, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet; When the baffle plate slides to abut against the second stopper, the third stopper abuts against the baffle plate, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

2. The air conditioner indoor unit according to claim 1, characterized in that: The position where the baffle is located is defined as a first position, a second position and a third position, and the baffle can slide along the guide rail from the first position to the second position and the third position in sequence; When the baffle slides to the first position, the baffle abuts against the first stopper, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet; When the baffle slides to the second position, the baffle abuts against the second stopper, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet; When the baffle slides to the third position, the baffle abuts against the second stopper, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

3. The air conditioner indoor unit according to claim 2, characterized in that: When the baffle slides to the second position, the shortest distance between the second stopper and the baffle is defined as a first distance; When the baffle plate slides to the third position, the shortest distance between the second stop block and the baffle plate is defined as a second distance, and the first distance is smaller than the second distance.

4. The air conditioner indoor unit according to claim 2, characterized in that: The guide rail is provided with a first limiting portion and a second limiting portion. When the baffle plate slides to the first position, the baffle plate abuts against the first limiting portion; when the baffle plate slides to the second position, the baffle plate abuts against the second limiting portion; the baffle plate abuts against the second limiting portion.

5. The air conditioner indoor unit according to claim 1, characterized in that: The guide rail comprises: A first guide rail, which is arranged on the ventilation shell, and the first guide rail is arranged in an arc shape; The second guide rail is arranged on the second shell, the second guide rail is arranged in an arc shape, the first guide rail and the second guide rail are arranged correspondingly, and the opposite ends of the baffle are respectively inserted into the first guide rail and the second guide rail.

6. The air conditioner indoor unit according to claim 1, characterized in that: The first fan is provided with a shaft connecting portion, and the shaft connecting portion is used to connect with the first drive shaft. One end of the first drive shaft away from the first fan is inserted into the interior of the shaft connecting portion to connect with the shaft connecting portion.

7. The air conditioner indoor unit according to claim 6, characterized in that: The first shell is provided with a connecting hole, the connecting hole is communicated with the interior of the first shell, and the opening of the connecting hole is arranged toward the first fan; the first driving shaft passes through the connecting hole and is connected with the shaft connecting part.

8. The air conditioner indoor unit according to claim 1, characterized in that: A bearing is arranged in the housing, the first drive shaft cooperates with the bearing and passes through the bearing, the first drive shaft is movably connected with the bearing, and the bearing is used to support the first drive shaft to rotate.

9. The air conditioner indoor unit according to claim 1, characterized in that: Also includes: a second motor, which is disposed on the ventilation shell; a gear, wherein a rotating shaft of the gear is connected to an output shaft of the second motor; The baffle includes a rack portion, and the rack portion is meshed with the gear; The output shaft of the second motor rotates to drive the gear to rotate, and the gear is meshed with the rack portion to drive the baffle to slide along the guide rail.

10. An air conditioner indoor unit, characterized in that: include: A casing, the casing comprising at least a first air inlet and a first air outlet, the first air inlet and the first air outlet respectively extending along the length direction of the casing; an indoor heat exchanger, which is arranged in the casing; a first fan, which is arranged in the housing and below the indoor heat exchanger; the first fan extends along the length direction of the housing; the first fan operates to introduce indoor air into the housing from the first air inlet, and after heat exchange in the indoor heat exchanger, the indoor air flows into the room from the first air outlet; The volute body is arranged inside the casing and arranged along the length direction of the casing with the first fan, and the volute body includes: A first shell, which includes at least a second air outlet; a second shell connected to a side of the first shell away from the first fan; A first fan, which is arranged in the volute body and is used to introduce outdoor fresh air into the room; a first motor mounted on the housing; the first motor comprises a first motor shaft and a second motor shaft, the first motor shaft and the second motor shaft are coaxially arranged, the first motor shaft is connected to the first fan, and the second motor shaft is connected to the first fan; the first motor is used to drive the first fan and the second fan to operate synchronously; First Fan; Second fan; a connecting shaft, one end of which is connected to the first fan, and the other end of which is connected to the second fan or the first motor; an axial hole, which is opened in the volute body, and the axial hole is used for the connecting shaft to pass through; the diameter of the axial hole is not more than 1.5 times the diameter of the connecting shaft; A ventilation shell connected to a side of the second shell away from the first shell, the ventilation shell comprising at least a second air inlet and a purification air inlet; A guide rail, which is arranged on the ventilation shell and / or the second shell; a baffle, the baffle cooperating with the guide rail to slide along the guide rail; A first stopper, a second stopper and a third stopper are respectively arranged between the ventilation shell and the second shell, and the third stopper is located between the purification air inlet and the second air inlet; When the baffle plate slides to abut against the first stopper, the third stopper abuts against the baffle plate, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet; When the baffle plate slides to abut against the second stopper, the third stopper abuts against the baffle plate, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

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