Air conditioner

Abstract

An air conditioner, comprising: a housing (100) comprising a first inner cavity and a second inner cavity, an air return port being formed in the top of the housing (100), and an air outlet being formed in the bottom of the front side of the housing (100); an indoor heat exchanger arranged in the first inner cavity, and configured to exchange heat with the air passing through the indoor heat exchanger to form a heat exchange airflow; a second fan (200) arranged in the first inner cavity and located below the indoor heat exchanger, an indoor airflow entering the first inner cavity through the air return port, and being heat-exchanged by the indoor heat exchanger and then output from the air outlet; a volute body arranged in the second inner cavity; a first fan (300) arranged in the volute body; a first motor (400) for simultaneously driving, by means of a connecting shaft, the second fan (200) and the first fan (300) to rotate synchronously; and a limiting member (500) arranged on the connecting shaft (600) of the first motor (400).

Description

air conditioner

[0001] This application claims the priority of Chinese patent application No. CN202322095715.7 filed on August 4, 2023, the priority of Chinese patent application No. CN202322096051.6 filed on August 4, 2023, the priority of Chinese patent application No. CN202322095917.1 filed on August 4, 2023, the priority of Chinese patent application No. CN202322359690.7 filed on August 31, 2023, the priority of Chinese patent application No. CN2023223579 filed on August 31, 2023 The present application shall claim priority of the Chinese patent application No. 62.X, the Chinese patent application No. CN202322359758.1 filed on August 31, 2023, the Chinese patent application No. CN202322368725.3 filed on August 31, 2023, the Chinese patent application No. CN202322368419.X filed on August 31, 2023, and the Chinese patent application No. CN202323339463.4 filed on December 7, 2023, all of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0003] Fresh air air conditioner is a healthy and comfortable air conditioner with fresh air function, which uses fans to achieve circulation and ventilation between room air and outdoor air.

[0004] Summary of the Invention

[0005] On the one hand, an air conditioner is provided, comprising: a shell, which is arranged at the top of the room or above the room; a first inner cavity and a second inner cavity are arranged inside the shell along the length direction; a return air port is opened at the top of the shell, and an air outlet is opened at the front bottom of the shell; an indoor heat exchanger, which is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange airflow; a second fan, which is arranged in the first inner cavity and is located below the indoor heat exchanger; the indoor air flows into the first inner cavity through the return air port and is output from the air outlet after being heat exchanged by the indoor heat exchanger; a volute body, which is arranged in the second inner cavity cavity; a first fan, the first fan is arranged in the volute body; a first motor, the first motor drives the second fan and the first fan to rotate synchronously at the same time through the connecting shaft; a limiter, the limiter is arranged on the connecting shaft; the volute body, the volute body includes a first split shell and a second split shell, the first split shell is provided with a first mounting portion, and the second split shell is provided with a second mounting portion; the first split shell is configured to be connected to the second split shell, and after the first split shell is connected to the second split shell, the first mounting portion and the second mounting portion are spliced ​​to form a mounting hole; the aperture of the mounting hole is not less than the diameter of the connecting shaft, and the limiter cannot pass through the mounting hole.

[0006] In another aspect, an air conditioner is provided, comprising: a housing, an indoor heat exchanger, a second fan, a volute body, a first fan, a first motor, a stopper, a first split housing, a second split housing, a mounting hole, and an electrical control box. The housing interior is provided with a first inner cavity and a second inner cavity along its length; a return air vent is provided at the top of the housing, and an outlet is provided at the front bottom of the housing. The indoor heat exchanger is disposed in the first inner cavity and exchanges heat with air passing through the indoor heat exchanger to form a heat exchange airflow. The second fan is disposed in the first inner cavity and below the indoor heat exchanger; indoor air enters the first inner cavity through the return air vent, exchanges heat in the indoor heat exchanger, and is then output from the outlet. The volute body is disposed in the second inner cavity. The first fan is disposed in the volute body. The first motor drives the second fan and the first fan to rotate synchronously via a connecting shaft. The stopper is provided on the connecting shaft of the first motor. The first split housing and the second split housing are joined together. The mounting hole is formed at the joint between the first and second split shells; the diameter of the mounting hole is the same as the diameter of the connecting shaft. An electrical control box is disposed within the second inner cavity; the electrical control box houses an electrical control board, which is electrically connected to the first motor via wiring. The electrical control box is disposed on a side of the volute body near the top of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG1 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0008] FIG2 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0009] FIG3 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0010] FIG4 is a front view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0011] 5 is a cross-sectional view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0012] 6 is a cross-sectional view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0013] FIG7 is a structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0014] FIG8 is a structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0015] FIG9 is a cross-sectional view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0016] FIG10 is a cross-sectional view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0017] FIG11 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0018] FIG12 is an exploded view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0019] FIG13 is a schematic structural diagram of a first half shell of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0020] FIG14 is a schematic structural diagram of a first half shell of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0021] FIG15 is an exploded view of a first half shell of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0022] FIG16 is an exploded schematic diagram of a first half shell of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0023] FIG17 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0024] FIG18 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0025] FIG19 is a partial cross-sectional view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0026] FIG20 is a schematic diagram of a partial structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0027] FIG21 is a structural diagram of an air-conditioning indoor unit according to an embodiment of the present disclosure;

[0028] FIG22 is a schematic diagram of the internal structure of an embodiment of an air-conditioning indoor unit according to the present disclosure;

[0029] FIG23 is a schematic structural diagram of another angle of the interior of an embodiment of an air-conditioning indoor unit according to the present disclosure;

[0030] FIG24 is a schematic structural diagram of the assembly of a fresh air module and a housing according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0031] FIG25 is an enlarged view of the structure at point A in FIG24;

[0032] FIG26 is a schematic structural diagram of a casing according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0033] FIG27 is a schematic structural diagram of a bearing seat assembled inside a casing according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0034] FIG28 is an enlarged view of the structure at point C in FIG27;

[0035] FIG29 is a schematic structural diagram of the connection between the first fan and the second fan in one embodiment of the air conditioner indoor unit according to the present disclosure;

[0036] FIG30 is a cross-sectional view of a first fan connected to a second fan in an embodiment of an air conditioner indoor unit according to the present disclosure;

[0037] FIG31 is a schematic structural diagram of a bearing in an embodiment of an air conditioner indoor unit according to the present disclosure;

[0038] FIG32 is a cross-sectional view of a bearing in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0039] FIG33 is a schematic structural diagram of a bearing ball in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0040] FIG34 is a structural diagram of a bearing seat at another angle according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0041] FIG35 is a structural diagram of a bearing seat at another angle according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0042] FIG36 is a cross-sectional view of the assembly of a bearing and a bearing seat according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0043] FIG37 is a schematic structural diagram of a fresh air module according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0044] FIG38 is an exploded view of a fresh air module in an embodiment of an air conditioner indoor unit according to the present disclosure;

[0045] FIG39 is a schematic structural diagram of a second volute in one embodiment of an air-conditioning indoor unit according to the present disclosure;

[0046] FIG40 is a structural diagram of the second volute at another angle according to one embodiment of the air conditioner indoor unit of the present disclosure;

[0047] FIG41 is a structural diagram of a fresh air module according to another angle of an embodiment of an air conditioner indoor unit of the present disclosure;

[0048] FIG42 is a schematic structural diagram of a first fan in an embodiment of an air conditioner indoor unit according to the present disclosure;

[0049] FIG43 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present disclosure;

[0050] FIG44 is a schematic diagram of the internal structure of an air conditioner indoor unit according to an embodiment of the present disclosure;

[0051] FIG45 is a schematic structural diagram of a fresh air module, a second fan, and a first motor assembled inside a casing according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0052] FIG46 is a schematic structural diagram of the assembly of a fresh air module and a housing according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0053] FIG47 is an enlarged view of the structure at point A in FIG46;

[0054] FIG48 is a schematic diagram of the structure inside the casing of an embodiment of an air conditioner indoor unit according to the present disclosure;

[0055] FIG49 is an enlarged view of the structure at point B in FIG48;

[0056] FIG50 is a schematic structural diagram of a bearing seat assembled inside a casing according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0057] FIG51 is an enlarged view of the structure at point C in FIG50;

[0058] FIG52 is a schematic structural diagram of the connection between the first fan and the second fan in one embodiment of the air conditioner indoor unit according to the present disclosure;

[0059] FIG53 is a cross-sectional view of a first fan connected to a second fan in accordance with an embodiment of an air conditioner indoor unit of the present disclosure;

[0060] FIG54 is an enlarged view of the structure at point D in FIG53;

[0061] FIG55 is a schematic structural diagram of a fresh air module according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0062] FIG56 is an exploded view of a fresh air module in an embodiment of an air conditioner indoor unit according to the present disclosure;

[0063] FIG57 is a schematic structural diagram of the assembly of the first fan and the connecting shaft according to one embodiment of the air conditioner indoor unit of the present disclosure;

[0064] FIG58 is a schematic structural diagram of the assembly of the first volute and the connecting shaft according to one embodiment of the air conditioner indoor unit of the present disclosure;

[0065] FIG59 is a schematic structural diagram of a connecting shaft in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0066] FIG60 is a schematic structural diagram of a second fan in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0067] FIG61 is a schematic structural diagram of a drive shaft in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0068] FIG62 is a schematic structural diagram of a bearing in an embodiment of an air conditioner indoor unit according to the present disclosure;

[0069] FIG63 is a cross-sectional view of a bearing in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0070] FIG64 is a schematic diagram of the structure of a bearing ball in one embodiment of an air conditioner indoor unit according to the present disclosure;

[0071] FIG65 is a schematic structural diagram of a bearing seat according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0072] FIG66 is a structural diagram of a bearing seat at another angle according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0073] FIG67 is a cross-sectional view of an assembly of a bearing and a bearing seat according to an embodiment of an air conditioner indoor unit of the present disclosure;

[0074] FIG68 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0075] FIG69 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0076] FIG70 is a schematic structural diagram of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0077] FIG71 is a schematic structural diagram of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0078] FIG72 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0079] FIG73 is a partial structural diagram of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0080] FIG74 is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0081] FIG75 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0082] FIG76 is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0083] FIG77 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0084] FIG78 is a partial front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0085] FIG79 is a cross-sectional view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0086] FIG80 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0087] FIG81 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0088] FIG82 is a front view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0089] FIG83 is a cross-sectional view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0090] FIG84 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0091] FIG85 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0092] FIG86 is a schematic structural diagram of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0093] FIG87 is a front view of a partial structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0094] FIG88 is a top view of a partial structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0095] FIG89 is a side view of a partial structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0096] FIG90 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0097] FIG91 is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0098] FIG92 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0099] FIG93 is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0100] FIG94 is a cross-sectional view taken along line AA in FIG93;

[0101] Figure 95 is a partial enlarged view of Figure 94;

[0102] FIG96 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0103] FIG97 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0104] FIG98 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0105] FIG99 is a side view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0106] FIG100 is a front view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0107] FIG101 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0108] FIG102 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0109] FIG103 is a schematic structural diagram of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0110] FIG104 is a front view of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0111] FIG105 is a top view of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0112] FIG106 is a side view of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0113] FIG107 is a schematic structural diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0114] FIG108 is a schematic diagram of a partial structure of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0115] FIG109 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0116] FIG110 is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0117] FIG111 is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0118] FIG112 is a cross-sectional view taken along line AA in FIG111;

[0119] FIG113 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0120] FIG114 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0121] FIG115 is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0122] FIG116 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0123] FIG117 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0124] FIG118 is a front view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0125] FIG119 is a top view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0126] FIG120 is a side view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0127] FIG121 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0128] FIG122 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0129] FIG123 is a schematic structural diagram of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0130] FIG124 is a front view of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0131] FIG125 is a top view of a portion of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0132] FIG126 is a schematic structural diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0133] FIG127 is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0134] FIG128 is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0135] FIG129 is a schematic structural diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0136] FIG130 is a schematic diagram of a partial structure of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0137] FIG131 is a top view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0138] FIG132 is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0139] FIG133 is a cross-sectional view of the portion AA in FIG132;

[0140] FIG134 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0141] FIG135 is a side view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0142] FIG136 is a front view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0143] FIG137 is a top view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0144] FIG138 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0145] FIG139 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0146] FIG140 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0147] FIG141 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0148] FIG142 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0149] FIG143 is a front view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0150] FIG144 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0151] FIG145 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0152] FIG146 is a side view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0153] FIG147 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0154] FIG148 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0155] FIG149 is a partial exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

[0156] FIG150 is an exploded view of the second half shell and the first split shell of the wall-mounted air conditioner according to an embodiment of the present disclosure;

[0157] Figure 151 is an exploded view of the first split shell and the third half shell of the wall-mounted air conditioner according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0158] The following will be combined with the accompanying drawings to clearly and completely describe some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, rather than all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0159] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0160] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0161] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates, for example, that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0162] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0163] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0164] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0165] In the present disclosure, an air conditioner (e.g., a wall-mounted air conditioner) performs a refrigeration cycle in the indoor unit of the air conditioner using a compressor, a condenser, an expansion valve, and an indoor heat exchanger. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, supplying refrigerant to the conditioned and heat-exchanged air. The compressor compresses low-temperature, low-pressure refrigerant gas and discharges high-temperature, high-pressure refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The indoor heat exchanger evaporates the refrigerant expanded in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The indoor heat exchanger can achieve a cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. Throughout the entire cycle, the indoor unit of the air conditioner can regulate the temperature of the indoor space. The outdoor unit of an air conditioner's indoor unit refers to the part of the refrigeration cycle that includes the compressor and outdoor heat exchanger. The indoor unit of an air conditioner's indoor unit includes an indoor heat exchanger, and the expansion valve can be provided in either the indoor unit or the outdoor unit. The indoor and outdoor heat exchangers function as either condensers or indoor heat exchangers. When the indoor heat exchanger functions as a condenser, the air conditioner's indoor unit functions as a heater in heating mode. When the indoor heat exchanger functions as an indoor heat exchanger, the air conditioner's indoor unit functions as a cooler in cooling mode.

[0166] Hereinafter, the first fan may be selected as a fresh air fan, which is configured to blow a fresh air flow.

[0167] The first fan may be a fresh air fan configured to blow a fresh air flow.

[0168] The first air inlet is a fresh air inlet, which is configured to allow outdoor fresh air to enter.

[0169] The first air outlet may be a fresh air outlet, which is configured to allow outdoor fresh air to be input into the room through the fresh air outlet.

[0170] The ventilation duct may optionally be a fresh air duct, which is configured to allow outdoor fresh air to flow.

[0171] The second fan may be a heat exchange fan configured to blow the airflow after heat exchange.

[0172] The second air inlet can be selected as an air-conditioning air inlet, which is used for returning indoor air flow.

[0173] The positioning space may be optionally a positioning groove; the installation space may be optionally a installation groove; the installation channel may be optionally a through groove; the card connection space may be optionally a card groove; and the connection space may be optionally a connection groove.

[0174] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0175] As shown in Figures 1 to 7, in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger, a second fan 200, a volute body, a first fan 300, a first motor 400, and a stopper 500. The housing 100 is configured to be hung on a wall; the housing 100 is disposed at the top of a room or above the room; a first inner cavity and a second inner cavity are disposed within the housing 100 along its length; an air return port is provided at the top of the housing 100, and an air outlet is provided at the front bottom of the housing 100.

[0176] The indoor heat exchanger is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange airflow;

[0177] The second fan 200 is disposed in the first inner cavity and below the indoor heat exchanger. Under the rotation of the second fan 200, the indoor air flows through the return air port into the first inner cavity and is heated by the indoor heat exchanger before being output from the air outlet.

[0178] The volute body is disposed in the second inner cavity; the first fan 300 is disposed in the volute body;

[0179] The first motor 400 drives the second fan 200 and the first fan 300 to rotate synchronously through the connecting shaft 600;

[0180] The limiting member 500 is arranged on the connecting shaft 600; the volute body includes a first split shell 700 and a second split shell 800, the first split shell 700 is provided with a first mounting portion, and the second split shell 800 is provided with a second mounting portion; the first split shell 700 is configured to be connected to the second split shell 800, and after the first split shell 700 is connected to the second split shell 800, the first mounting portion and the second mounting portion are spliced ​​to form a mounting hole; the aperture of the mounting hole is not less than the diameter of the connecting shaft 600, and is smaller than the outer diameter of the limiting member 500.

[0181] Through the above scheme, during installation, the first split shell 700 and the second split shell 800 are directly sleeved on the connecting shaft 600, so that the limiting member 500 is directly located between the first split shell 700 and the second split shell 800, and the mounting hole is directly sleeved on the connecting shaft 600; there is no need to pass the limiting member 500 through the mounting hole, so the aperture of the mounting hole can be reduced, reducing the possibility of airflow leakage through the mounting hole, thereby improving the sealing.

[0182] In some embodiments, the volute body also includes a second half shell 900, which is arranged on the side of the first split shell 700 and the second split shell 800 away from the second fan 200; a first accommodating cavity is formed between the second half shell 900, the first split shell 700 and the second split shell 800, and the first fan 300 is arranged in the first accommodating cavity.

[0183] In some embodiments, the second half shell 900 is integrally formed with the second split shell 800. The second half shell 900 is integrally formed with the second split shell 800, so only the first split shell 700 is installed to seal the first receiving cavity, which is convenient for manual operation.

[0184] In some embodiments, the first split shell 700 and the second half shell 900 are integrally formed.

[0185] In some embodiments, the first mounting portion is a first mounting space provided in the first split housing 700. The second mounting portion is a second mounting space provided in the second split housing 800. The first mounting space and the second mounting space are joined to form a mounting hole.

[0186] In some embodiments, the volute body includes a first half-shell, a second half-shell 900, and a third half-shell 110 that are spliced ​​together. The first split shell 700 and the second split shell 800 are spliced ​​together to form the first half-shell. The volute body is composed of the first half-shell, the second half-shell 900, and the third half-shell 110, which facilitates manufacturing and installation of the first fan 300.

[0187] In some embodiments, the limiting member 500 is annular and sleeved on the connecting shaft 600 , and the outer diameter of the limiting member 500 is smaller than the diameter of the mounting hole.

[0188] In the prior art, the first half shell of the volute body is a whole, and the mounting hole directly passes through the first half shell. The limiter 500 is set on the connecting shaft 600, and due to process problems, the limiter 500 needs to be installed on the connecting shaft 600 by special equipment. If the connecting shaft 600 is passed through the mounting hole first, the equipment for installing the limiter 500 will interfere with the first half shell, making it impossible to install the limiter 500. Therefore, the limiter 500 must be installed on the connecting shaft 600 before the connecting shaft 600 passes through the mounting hole of the first half shell. Therefore, the aperture of the mounting hole must be larger than the diameter of the limiter 500. Therefore, a large gap will be generated between the mounting hole and the connecting shaft 600, resulting in air leakage, and the sealing performance of the volute body is poor.

[0189] The present disclosure adopts the above solution. The first and second mounting portions of the first and second split shells 700, 800 can be directly aligned with the connecting shaft 600. The first and second split shells 700, 800 are then spliced ​​together to form a first half shell, so that the mounting hole is directly sleeved on the connecting shaft 600. The stopper 500 does not need to pass through the mounting hole, so the diameter of the mounting hole can be set smaller than the outer diameter of the stopper 500, thereby reducing the gap between the mounting hole and the connecting shaft 600 and improving the sealing performance of the volute body.

[0190] Referring to Figures 6 to 16, in some embodiments, in the fresh air module, a first half shell and a second half shell 900 are spliced ​​together, and a third half shell 110 is disposed on a side of the second half shell 900 away from the first half shell. The second half shell 900 and the third half shell 110 are spliced ​​together. A first accommodating chamber is formed between the first and second half shells 900, and the first fan 300 is disposed within the first accommodating chamber. A second accommodating chamber is formed between the second half shell 900 and the third half shell 110. A first air inlet is defined on the volute body, communicating with the second accommodating chamber. A fresh air passage is also defined through the second half shell 900, connecting the first and second accommodating chambers. A first air outlet is defined on the volute body, communicating with the first accommodating chamber. When the first motor 400 rotates, the connecting shaft 600 drives the first fan 300 to rotate, and the second end drives the second fan 200 to rotate. When the first fan 300 rotates, outdoor fresh air is sucked into the second accommodating chamber through the first air inlet by air pressure, and the fresh air flows into the first accommodating chamber through the fresh air channel and is output to the room through the first air outlet.

[0191] In some embodiments, the first motor 400 is disposed between the volute body and the second fan 200. The first motor 400 is disposed on a side of the first half shell away from the second half shell 900.

[0192] In some embodiments, the joints of the first split shell 700 and the second split shell 800 are provided with an insert and a slot, respectively, and the insert is inserted into the slot. By inserting the insert and the slot, the first split shell 700 and the second split shell 800 are aligned and spliced, which facilitates manual operation.

[0193] In some embodiments, the insert is disposed on the side of the first split housing 700 facing the second split housing 800, and the slot is opened on the side of the second split housing 800 facing the first split housing 700. When the first split housing 700 and the second split housing 800 are connected, the insert is plugged into the slot.

[0194] In some embodiments, the insert is disposed on the side of the second split housing 800 facing the first split housing 700, and the slot is opened on the side of the first split housing 700 facing the second split housing 800. When the first split housing 700 and the second split housing 800 are connected, the insert is plugged into the slot.

[0195] In some embodiments, the first split housing 700 includes a first base plate and a first enclosure disposed at an edge of the first base plate, with a first mounting portion provided on the first base plate. The second split housing 800 includes a second base plate and a second enclosure disposed at an edge of the second base plate, with a second mounting portion provided on the second base plate. The first split housing 700 and the second split housing 800 are joined at the first enclosure and the second enclosure.

[0196] In some embodiments, the insert is provided on the side of the first enclosure facing the second enclosure, and the insert extends in the direction toward the second enclosure. The side of the second enclosure facing the first accommodating cavity is the inner wall, and the side away from the first accommodating cavity is the outer wall. A slot is provided on the inner wall or outer wall of the second enclosure, and the slot passes through the end of the second enclosure facing the first enclosure. When the first split shell 700 and the second split shell 800 are fully spliced ​​together, the first bottom plate and the second bottom plate are located in the same plane and fit together, and the first mounting portion and the second mounting portion are spliced ​​together to form a mounting hole; the end of the first enclosure and the end of the second enclosure are in contact, and the insert is inserted into the slot.

[0197] In some embodiments, the insert is provided on the side of the second enclosure facing the first enclosure, and the insert extends in the direction toward the first enclosure. The side of the first enclosure facing the first accommodating cavity is the inner wall, and the side away from the first accommodating cavity is the outer wall. A slot is provided on the inner wall or outer wall of the first enclosure, and the slot passes through one end of the first enclosure facing the second enclosure. When the first split shell 700 and the second split shell 800 are fully spliced ​​together, the first bottom plate and the second bottom plate are located in the same plane and fit together, and the first mounting portion and the second mounting portion are spliced ​​together to form a mounting hole; the end of the first enclosure and the end of the second enclosure are in contact, and the insert is inserted into the slot.

[0198] Referring to Figures 6 to 16, in some embodiments, the second half-shell 900 includes a third bottom plate and a third enclosure disposed at the edge of the third bottom plate. The third enclosure is disposed on the side of the third bottom plate facing the first and second bottom plates. After the second half-shell 900 is joined to the first half-shell, the third bottom plate is parallel to the first and second bottom plates. The third enclosure is joined to the first and second enclosure plates.

[0199] In some embodiments, the width of the first panel facing the second half-shell 900 is greater than the width of the second panel facing the second half-shell 900. A slot is provided on the third panel for receiving the first panel. The difference in width between the first panel and the second panel prevents the joint between the first and second half-shells 900 from being coplanar, thereby reducing the likelihood of separation along the joint. This enhances the structural strength of the entire volute body and reduces the likelihood of fracture at the joint between the first and second half-shells 900.

[0200] In some embodiments, the first half shell and the second half shell 900 are connected via a connection module.

[0201] In some embodiments, a plurality of connection modules are provided at intervals along the extending direction of the seam between the first half shell and the second half shell 900. The first half shell and the second half shell 900 are connected by a plurality of connection modules, thereby improving the structural strength of the fresh air module.

[0202] In some embodiments, the connection module includes a clamping block and a clamping ring that are clamped to each other, and the clamping block and the clamping ring are respectively provided on the first half shell and the second half shell 900. The clamping block is clamped to the clamping ring to achieve the connection between the first split shell 700 and the second half shell 900, and the second split shell 800 and the second half shell 900.

[0203] In some embodiments, the clamping block and the clamping ring are respectively arranged on the first enclosure and the third enclosure, and the clamping ring is sleeved on the clamping block so that the clamping block is clamped to the clamping ring to complete the connection between the first split shell 700 and the second half shell 900.

[0204] In some embodiments, the clamping block and the clamping ring are respectively arranged on the second enclosure and the third enclosure, and the clamping ring is sleeved on the clamping block so that the clamping block is clamped to the clamping ring to complete the connection between the second split shell 800 and the second half shell 900.

[0205] Through the above solution, the first split shell 700 and the second split shell 800 are both connected to the second half shell 900 , that is, the positions of the first split shell and the second split shell 800 are fixed.

[0206] In some embodiments, in order to improve the connection strength between the first split shell 700 and the second split shell 800, after the connecting shaft 600 is installed in the mounting hole, the first split shell 700 and the second split shell 800 are connected to each other, and the connection method includes but is not limited to connecting modules, bonding, threaded connection, etc.

[0207] Referring to Figures 6 to 16, in some embodiments, the connection module includes a first connector, a second connector, and a threaded connector. The first connector and the second connector are respectively provided on the first half shell and the second half shell 900. The threaded connector is configured to connect the first connector and the second connector. The threaded connector passes through the first connector and the second connector to achieve the connection between the first half shell and the second half shell 900.

[0208] In some embodiments, the first connecting member and the second connecting member are respectively disposed on the first enclosure plate and the third enclosure plate. In some embodiments, the first connecting member and the second connecting member are respectively disposed on the second enclosure plate and the third enclosure plate.

[0209] In some embodiments, the threaded connector is a screw, and threaded holes are provided on both the first connector and the second connector. The screw is connected to the threaded holes on the first connector and the second connector at the same time to complete the connection between the first connector and the second connector.

[0210] In some embodiments, the threaded connector is a bolt that passes through the first connector and the second connector, and a nut is threadedly connected to the end of the bolt that passes through the first connector and the second connector to connect the first connector and the second connector.

[0211] In addition, referring to Figures 17 to 20, in some embodiments, the present disclosure further provides a wall-mounted air conditioner, which includes the same contents as described above: a housing 100, an indoor heat exchanger, a second fan 200, a volute body, a first fan 300, a first motor 400, and a stopper 500, wherein the housing 100 is mounted on a wall; a first inner cavity and a second inner cavity are formed in the housing 100; an air return port is opened at the top of the housing 100, and an air outlet is opened at the front bottom of the housing 100;

[0212] The indoor heat exchanger is arranged in the first inner cavity, and the indoor heat exchanger exchanges heat with the air passing through the indoor heat exchanger to form a heat exchange airflow;

[0213] The second fan 200 is disposed in the first inner cavity and below the indoor heat exchanger. Under the rotation of the second fan 200, the indoor air flows through the return air port into the first inner cavity and is heated by the indoor heat exchanger before being output from the air outlet.

[0214] The volute body is disposed in the second inner cavity; the first fan 300 is disposed in the volute body;

[0215] The first motor 400 drives the second fan 200 and the first fan 300 to rotate synchronously via the connecting shaft 600. A stopper 500 is provided on the connecting shaft of the first motor 400. This embodiment differs from the above in that the first and second split housings 700 and 800 are joined together; a mounting hole is provided at the joint between the first and second split housings 700 and 800; and the diameter of the mounting hole is the same as the diameter of the connecting shaft.

[0216] Through the above solution, during installation, the first split shell 700 and the second split shell 800 are directly sleeved on the connecting shaft, so that the limit member 500 is directly located between the first split shell 700 and the second split shell 800, and the mounting hole is directly sleeved on the connecting shaft; there is no need to pass the limit member 500 through the mounting hole, so the diameter of the mounting hole can be reduced, reducing the possibility of airflow leakage through the mounting hole, thereby improving the sealing.

[0217] In some embodiments, the connecting shaft of the first motor 400 has a first end and a second end. The second fan 200 and the first fan 300 are respectively located on either side of the first motor 400. The first fan 300 is connected to the first end of the connecting shaft of the first motor 400. The second fan 200 is connected to the second end of the connecting shaft of the first motor 400. A stopper 500 is disposed at the first end of the connecting shaft of the first motor 400.

[0218] In some embodiments, the connecting shaft of the first motor 400 coaxially passes through the second fan 200 and is connected to the first fan 300 .

[0219] The air conditioner indoor unit provided in the embodiments of the present disclosure can have various implementation forms, for example, it can be a wall mounted unit, a cabinet unit, etc. Figures 21 to 42 show a specific embodiment of the air conditioner indoor unit of the present disclosure. In this embodiment, the air conditioner indoor unit includes a housing 1, a heat exchanger 4, a fresh air module, a second fan 9, a first motor 5, a first bearing 20, a second bearing 7, and a bearing seat 8.

[0220] In the above-mentioned air-conditioning indoor unit, as shown in Figure 21, the casing 1 forms the overall appearance of the air-conditioning indoor unit, and the casing 1 has a top and a bottom, the top of the casing 1 and the bottom of the casing 1 are opposite ends, and the direction from the top of the casing 1 to the bottom of the casing 1 is the height direction of the casing 1; the left side of the casing 1 and the right side of the casing 1 are opposite sides, and the direction from the left side of the casing 1 to the right side of the casing 1 is the length direction of the casing 1; the front side of the casing 1 and the rear side of the casing 1 are opposite sides, and the direction from the front side of the casing 1 to the rear side of the casing 1 is the thickness direction of the casing 1; in this embodiment, the air-conditioning indoor unit is a wall-mounted unit, and the rear side of the casing 1 is arranged toward the wall; a heat exchange duct is defined inside the casing 1, and the casing 1 is provided with a casing air inlet 11 and a second air outlet The air vent 15, the casing air inlet 11 and the second air outlet 15 are respectively connected to the heat exchange air duct, the casing air inlet 11 is located at the top of the casing 1, and a second grille is provided at the casing air inlet 11 to prevent debris from entering the interior of the casing 1; the second air outlet 15 is located on the front lower side of the casing 1, and an air guide plate 2 is provided at the second air outlet 15, and the air guide plate 2 is connected to the casing 1 in an openable and closable manner to open or close the second air outlet 15; it should be noted that the casing 1 is also provided with a vent 12 to allow outdoor fresh air to flow into the room from the vent 12; in some embodiments, the vent 12 is located on the left side of the casing air inlet 11 and the opening is set upward, so that outdoor fresh air flows into the room in an upward direction.

[0221] In some embodiments, as shown in Figures 24 and 26, the casing 1 is provided with a first installation cavity 14, a second installation cavity 13 and a third installation cavity 16, and the second installation cavity 13, the first installation cavity 14 and the third installation cavity 16 are distributed in sequence along the length direction of the casing 1; the first installation cavity 14 is configured to install the second fan 9; the second installation cavity 13 is configured to install the first motor 5; the third installation cavity 16 is configured to install the fresh air module.

[0222] In other embodiments, the third mounting cavity 16 is located on the left side of the first mounting cavity 14, and the second mounting cavity 13 is located on the right side of the first mounting cavity 14; the second mounting cavity 13 and the first mounting cavity 14 are separated from each other by the first mounting portion 17, and the first mounting cavity 14 and the third mounting cavity 16 are separated from each other by the second mounting portion 18; it should be noted that the third mounting cavity 16, the first mounting cavity 14 and the second mounting cavity 13 are arranged in sequence from left to right along the length direction of the casing 1.

[0223] In the aforementioned air conditioner indoor unit, as shown in Figures 22 and 23 , the heat exchanger 4 is configured to heat the indoor air within the housing 1 to generate conditioned air. The heat exchanger 4 is installed within the heat exchange air duct. It should be noted that the heat exchanger 4 is located near the housing air inlet 11. It should also be noted that the conditioned air can be cold air, hot air, or even air at room temperature.

[0224] In the above-mentioned air-conditioning indoor unit, as shown in Figure 22, the first motor 5 is configured to drive the first fan 10 and the second fan 9 to rotate; the first motor 5 is installed in the second installation cavity 13; in this embodiment, the first motor 5 is a single-axis motor, and the motor shaft of the first motor 5 is connected to the second fan 9 to directly drive the second fan 9 to rotate, the first fan 10 is connected to the second fan 9 and rotates synchronously with the second fan 9, and the first motor 5 is connected to the first fan 10 by using the second fan 9 to indirectly drive the first fan 10 to rotate.

[0225] In the above-mentioned air-conditioning indoor unit, as shown in Figures 29 and 30, the second fan 9 is configured to introduce indoor air into the interior of the casing 1, and after heat exchange in the heat exchanger 4 to form conditioned air, the conditioned air is flowed into the room from the second air outlet 15 to meet the user's cooling or heating needs; the second fan 9 is installed in the first installation cavity 14 and is located on the side of the heat exchanger 4 away from the casing air inlet 11; the end of the second fan 9 away from the first motor 5 is connected to the first fan 10, so that the first motor 5 can drive the second fan 9 and the first fan 10 to operate simultaneously; it should be noted that the second fan 9 is a cross-flow fan.

[0226] In some embodiments, the second fan 9 extends along the length direction of the casing 1, and a fan sleeve 92 is provided at the end of the second fan 9 connected to the first motor 5. The fan sleeve 92 is provided with a connecting hole, and the motor shaft of the first motor 5 extends into the connecting hole to connect the first motor 5 to the second fan 9; the end of the second fan 9 away from the first motor 5 is connected to a connecting shaft, and is connected to the first fan 10 through the connecting shaft, so that the second fan 9 and the first fan 10 can operate simultaneously.

[0227] In other embodiments, the connecting shaft includes a drive shaft 91 and a fan shaft 101, the drive shaft 91 is connected to the end of the second fan 9 away from the first motor 5, the fan shaft 101 is connected to the first fan 10, and the drive shaft 91 and the fan shaft 101 are connected to each other through a coupling 6 to connect the second fan 9 to the first fan 10; it should be noted that the coupling 6 belongs to the existing technology in this field and will not be repeated here.

[0228] In order to increase the stability of the rotation process of the second fan 9, the drive shaft 91 is connected to the second bearing 7, and the second bearing 7 is sleeved on the outer periphery of the drive shaft 91 to support the rotation of the drive shaft 91; the second bearing 7 is provided with a bearing cavity 714 for the drive shaft 91 to pass through, so that the drive shaft 91 passes through the bearing cavity 714 through the coupling 6 and the fan shaft 101.

[0229] Specifically, as shown in Figures 31 to 33, the second bearing 7 includes a bearing sleeve 71 and a bearing ball 72, and a bearing cavity 714 is set through the bearing sleeve 71 and the bearing ball 72; the openings at both ends of the bearing cavity 714 are correspondingly arranged toward the first fan 10 and the second fan 9; the end of the drive shaft 91 away from the second fan 9 is set through the bearing cavity 714; it should be noted that an installation space 715 is provided in the bearing sleeve 71, and the installation space 715 is connected to the bearing cavity 714 and is arranged close to the second fan 9; the bearing ball 72 is arranged in the installation space 715 and is connected to the drive shaft 91.

[0230] In some embodiments, a reinforcement portion 716 is provided at one end of the bearing sleeve 71 away from the second fan 9 , and the bearing cavity 714 extends axially along the drive shaft 91 to the reinforcement portion 716 to increase the contact area between the drive shaft 91 and the bearing sleeve 71 .

[0231] As shown in Figure 36, the second bearing 7 is installed on the bearing seat 8, and the bearing seat 8 is installed in the casing 1; the second bearing 7 is installed by setting the bearing seat 8 so that the second bearing 7 can better support the drive shaft 91; the bearing seat 8 is arranged outside the second bearing 7 and installed on the second mounting portion 18.

[0232] Specifically, as shown in Figures 34 to 36, a first through cavity 84 is provided inside the bearing seat 8, the second bearing 7 is provided in the first through cavity 84 and the outer periphery of the bearing sleeve 71 is tightly fitted with the inner wall of the first through cavity 84, so that the second bearing 7 is connected to the bearing seat 8; the first through cavity 84 extends along the length direction of the casing 1, so that the drive shaft 91 can extend into the first through cavity 84 and connect with the second bearing 7 and pass through the first through cavity 84 to connect with the second fan 9. It should be noted that a connecting platform is provided in the first through cavity 84, and the connecting platform is located in the first through cavity 84 and is arranged circumferentially along the first through cavity 84; the bearing sleeve 71 is provided with a connecting block 711, and the connecting block 711 is located on the outer periphery of the bearing sleeve 71 and is arranged circumferentially along the bearing sleeve 71, and the connecting block 711 abuts against the connecting platform, so that the bearing sleeve 71 is pressed and assembled with the inner wall of the first through cavity 84, thereby fixing the second bearing 7 and the bearing seat 8; it should also be noted that the connecting platform is connected to the inner wall of the first through cavity 84, and the inner diameter of the connecting platform gradually decreases along the axial direction of the first through cavity 84 from its direction close to the second fan 9, so that the closer the bearing sleeve 71 is to the second fan 9, the greater the mutual extrusion force between the bearing sleeve 71 and the inner wall of the first through cavity 84, which facilitates the connection of the second bearing 7 and the bearing seat 8.

[0233] In some embodiments, the bearing seat 8 is provided with a stopper 85 , which is located at the opening of the first through cavity 84 toward the second fan 9 . The stopper 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from escaping from the first through cavity 84 .

[0234] In some embodiments, the bearing seat 8 is provided with a positioning block 86, which is located in the first through cavity 84; the bearing sleeve 71 is provided with a positioning space 712 corresponding to the positioning block 86, and the positioning space 712 is located on the outer periphery of the bearing sleeve 71; the positioning block 86 is provided in the positioning space 712 to locate the installation position of the bearing 7 in the first through cavity 84.

[0235] In some embodiments, a buffer rib 713 is provided on the outer periphery of the bearing sleeve 71. The buffer rib 713 is protruding from the outer surface of the bearing sleeve 71 and abuts against the inner wall of the first through cavity 84. On the one hand, the buffer rib 713 can facilitate the installation of the bearing sleeve 71 in the first through cavity 84. On the other hand, it can also increase the firmness of the abutment between the bearing sleeve 71 and the inner wall of the first through cavity 84, and can also protect the part of the bearing sleeve 71 that contacts the inner wall of the first through cavity 84.

[0236] In order to facilitate the connection between the bearing seat 8 and the second mounting portion 18, the bearing seat 8 is provided with an extension portion 83, and a accommodating cavity is provided in the second mounting portion 18, the opening of the accommodating cavity is set toward the top of the casing 1, and the extension portion 83 is provided in the accommodating cavity to locate the connection position of the bearing seat 8 and the second mounting portion 18; it should be noted that the bearing seat 8 is also provided with a clamping portion 82, and the clamping portion 82 is located at the extension portion 83; the second mounting portion 18 is provided with a clamping space, and the clamping space is communicated with the accommodating cavity, and the clamping portion 82 is provided in the clamping space to fix the bearing seat 8 with the second mounting portion 18, thereby installing the bearing seat 8 in the casing 1.

[0237] In some embodiments, as shown in Figure 34, the bearing seat 8 is further provided with a support portion 81, and a support platform is further provided in the accommodating cavity, and the support portion 81 is located on the top of the support platform to support the bearing seat 8; it should be noted that the support portion 81 is configured as two, and the two support portions 81 are symmetrically arranged along the thickness direction of the casing 1; and the support platform is also configured as two, and the two support platforms are arranged in a one-to-one correspondence with the two support portions 81.

[0238] In the above-mentioned air-conditioning indoor unit, as shown in Figures 22 to 24, the fresh air module is configured to introduce outdoor fresh air into the room; the fresh air module includes a volute body 3 and a first fan 10, the volute body 3 is installed in the third installation cavity 16, and a fresh air duct is defined in the volute body 3, and the first fan 10 is installed in the fresh air duct, and the fresh air duct is connected with a first air inlet 37 and a first air outlet 35, the first air inlet 37 is connected to the outside, and the first air outlet 35 is connected to the vent 12; through the operation of the first fan 10, the outdoor fresh air is introduced into the fresh air duct from the first air inlet 37, and then passes through the first air outlet 35 and flows into the room from the vent 12; it should be noted that the volute body 3 is provided with a reserved hole 311 connected to the fresh air duct, so that the fan shaft 101 passes through the reserved hole 311 and is arranged outside the fresh air duct and is connected to the drive shaft 91, so that the first fan 10 and the second fan 9 rotate synchronously.

[0239] In the above-mentioned air-conditioning indoor unit, as shown in Figures 37 and 38, the volute body 3 includes a first volute 31, a second volute 32 and a ventilation shell 33; the first volute 31 and the second volute 32 are arranged opposite to each other and jointly form a ventilation chamber 321, and the first fan 10 is installed in the ventilation chamber 321; the ventilation shell 33 and the second volute 32 are arranged opposite to each other on the side away from the first volute 31 to jointly form a purification chamber 331; the second volute 32 is provided with a first grille 322, and the first grille 322 is located at the connection between the purification chamber 331 and the ventilation chamber 321, so that the purification chamber 331 and the ventilation chamber 321 are connected to each other; a purification module 38 is provided in the purification chamber 331 to convect outdoor fresh air to the purification chamber 331 Purification treatment is carried out; the first air inlet 37 is opened in the purification chamber 331, and the first air outlet 35 is opened in the ventilation cavity 321, so that the purification module 38 purifies the outdoor fresh air entering the purification chamber 331 through the first air inlet 37, and makes the air in the purification chamber 331 that has been purified by the purification module 38 pass through the first grille 322 into the ventilation cavity 321, and flow into the room through the first air outlet 35 from the ventilation port 12; it should be noted that the ventilation cavity 321 and the purification chamber 331 together form a fresh air duct; it should also be noted that the reserved hole 311 is opened in the first volute 31, and the opening of the reserved hole 311 is set toward the second fan 9, and the reserved hole 311 is connected to the ventilation cavity 321.

[0240] In some embodiments, the purification module 38 includes a purification frame and a filter. The filter is arranged on the purification frame, and the filter is configured to filter and purify the outdoor fresh air to prevent impurities and flocs mixed in the outdoor fresh air from entering the room; it should be noted that the purification chamber 331 is provided with a socket 34, so that the purification module 38 can be extended into the purification chamber 331 through the socket 34, thereby realizing the installation of the purification module 38. When the purification module 38 needs to be disassembled, the purification module 38 can be pulled out from the socket 34. By detachably installing the purification module 38 in the purification chamber 331, it is convenient for users to disassemble, clean and replace the filter by themselves. In this embodiment, the disassembly and installation method of the purification module 38 is simple and easy to operate.

[0241] In other embodiments, a guide member is installed at the first air outlet 35, and the guide member defines a guide cavity, which is connected to the ventilation cavity 321, so that the outdoor fresh air in the ventilation cavity 321 flows into the room through the guide cavity.

[0242] In the above-mentioned air-conditioning indoor unit, as shown in Figures 29, 30 and 38, the first fan 10 is configured to introduce indoor fresh air into the room; the first fan 10 is installed in the ventilation cavity 321, and through the operation of the first fan 10, the outdoor fresh air is introduced into the purification chamber 331 through the pipeline from the first air inlet 37, enters the ventilation cavity 321 after purification by the purification module 38, and flows into the room from the first air outlet 35 and the ventilation port 12; it should be noted that the first fan 10 is a centrifugal fan.

[0243] Specifically, as shown in Figure 42, the first fan 10 includes a hub 102 and a plurality of blades 104; the plurality of blades 104 are arranged in sequence along the circumference of the hub 102 and are fixedly connected to the hub 102; the central part of the hub 102 is provided with an axial hole for the fan shaft 101 to pass through, and the axial hole is arranged corresponding to the reserved hole 311; the fan shaft 101 is connected to the drive shaft 91 through a coupling 6, so that the first fan 10 is connected to the second fan 9.

[0244] In other embodiments, the hub 102 is provided with a connecting portion 103, which is located in the central part of the hub 102, and the end of the connecting portion 103 away from the hub 102 extends in a direction away from the second fan 9; an axial hole 1031 is opened in the connecting portion 103 and a connecting cavity 1031 is defined inside the connecting portion 103, and the connecting cavity 1031 is a through cavity extending axially along the second fan 9, and the connecting cavity 1031 is connected to the axial hole so that the fan shaft 101 is passed through the connecting cavity 1031; by providing the connecting portion 103, the connecting cavity 1031 is defined and formed by the connecting portion 103 to increase the reliability of the connection between the fan shaft 101 and the first fan 10.

[0245] In other embodiments, the fan shaft 101 is provided with a positioning portion, which is arranged near the coupling 6 and is configured to locate the connection position of the fan shaft 101 and the first fan 10; the fan shaft 101 is connected with a fastener, which is located at the opening of the connecting cavity toward the second volute 32, so that the fan shaft 101 is fixedly connected to the first fan 10; it should be noted that the fastener is usually a nut.

[0246] Since the first fan 10 is installed in the ventilation cavity 321 and is connected to the second fan 9 through the fan shaft 101, the first fan 10 and the second fan 9 are connected in series with each other, and the first motor 5 drives the first fan 10 to rotate through the second fan 9. Therefore, the first fan 10 has poor stability during rotation. In this embodiment, in order to increase the stability of the first fan 10 during operation, a first bearing 20 is connected to the end of the fan shaft 101 away from the drive shaft 91, and the first bearing 20 is used to support the rotation of the fan shaft 101, thereby increasing the stability of the operation of the first fan 10.

[0247] Specifically, the first bearing 20 is installed on the second volute 32 and is located at the first grid 322 , so that the second volute 32 fixes the first bearing 20 .

[0248] In some embodiments, the first bearing 20 is disposed through the first grille 322 , and the first bearing 20 extends to the ventilation cavity 321 and the purification chamber 331 at both ends along the axial direction of the second fan 9 to increase the firmness of the installation of the first bearing 20 .

[0249] It should be noted that the first bearing 20 has the same or similar structure as the second bearing 7, and the specific structure of the first bearing 20 will not be repeated here; it should also be noted that since the first bearing 20 is installed on the second volute 32, there is no need to additionally set up a bearing seat to install the first bearing 20. By installing the first bearing 20 on the first grille 322 of the second volute 32, the bearing seat configured to install the first bearing 20 can be omitted, thereby effectively ensuring the smooth operation of the first fan 10, while minimizing the number of structural parts, achieving high efficiency and low cost.

[0250] Since the first motor 5 drives the second fan 9 and the first fan 10 to operate simultaneously, the first fan 10 cannot stop working alone, resulting in that the fresh air function cannot be turned off when the air-conditioning indoor unit is working. Therefore, the air-conditioning indoor unit is provided with a switch component 36 at the first air inlet 37, and the switch component 36 is used to open or close the first air inlet 37 to control whether outdoor fresh air is introduced into the purification chamber 331, thereby controlling the opening and closing of the fresh air function; when the air-conditioning indoor unit is working, when it is necessary to turn off the fresh air function, the first air inlet 37 is closed. It can prevent outdoor fresh air from being introduced into the purification chamber 331, thereby preventing outdoor fresh air from flowing into the room from the first air outlet 35; when the fresh air function needs to be turned on, the first air inlet 37 can be opened to allow outdoor fresh air to be introduced into the purification chamber 331 from the first air inlet 37, thereby allowing outdoor fresh air to flow into the room from the first air outlet 35; it should be noted that the switch component 36 closes the first air inlet 37 and can also prevent fresh air from flowing back into the room when the air-conditioning indoor unit is turned off, thereby reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience.

[0251] Specifically, as shown in Figure 41, the switch assembly 36 includes a baffle 361, a second motor 363, a gear and a rack 362. The baffle 361 is arranged at the first air outlet 35 in an openable and closable manner. The second motor 363 is installed on the ventilation shell 33. The rotating shaft of the second motor 363 is connected to a gear. The baffle 361 is provided with a rack 362, and the gear is engaged with the rack 362. When the fresh air function is turned on, the second motor 363 drives the gear to drive the rack 362 to move, and then drives the baffle 361 to move linearly to open the first air inlet 37, so that outdoor fresh air can enter the room; when the fresh air function is turned off, the second motor 363 drives the gear to drive the rack 362 to move, and the baffle 361 moves linearly to close the first air inlet 37, thereby preventing outdoor fresh air from entering the room; it should be noted that the baffle 361 closing the first air inlet 37 can also prevent fresh air from flowing back into the room when the air-conditioning indoor unit is turned off, reducing the indoor air noise and wind feeling when the fresh air function is not turned on, and improving the user experience.

[0252] The working principle of the above-mentioned air-conditioning indoor unit is as follows: the first motor 5 drives the second fan 9 to rotate, the drive shaft 91 drives the fan shaft 101 to rotate through the coupling 6, and the fan shaft 101 drives the first fan 10 to rotate, so as to realize the simultaneous rotation of the first fan 10 and the second fan 9; the first bearing 20 supports the fan shaft 101 to rotate, and the second bearing 7 supports the drive shaft 91 to rotate, so as to increase the stability of the rotation of the fan shaft 101 and the drive shaft 91, thereby increasing the smooth operation of the first fan 10. Through the operation of the first fan 10, the outdoor fresh air is introduced into the purification chamber 331 from the first air inlet 37, and after purification treatment by the purification module 38, it enters the ventilation cavity 321 through the first grille 322. The outdoor fresh air in the ventilation cavity 321 passes through the first air outlet 35 and flows into the room from the vent 12.

[0253] The above-mentioned air-conditioning indoor unit is connected to the fan shaft 101 by setting a first bearing 20, so that the first bearing 20 supports the rotation of the fan shaft 101, thereby increasing the stability of the rotation of the fan shaft 101, thereby increasing the smoothness of the operation of the first fan 10; by installing the first bearing 20 at the first grille 322 of the second volute 32 and using the second volute 32 to install the first bearing 20, the bearing seat for installing the first bearing 20 can be eliminated, the number of parts of the air-conditioning indoor unit can be reduced, the assembly efficiency of the air-conditioning indoor unit can be improved, and the cost can be reduced.

[0254] The air conditioner indoor unit provided in the embodiments of the present disclosure can have various implementation forms, for example, it can be a wall mounted unit, a cabinet unit, etc. Figures 43 to 67 illustrate a specific embodiment of the air conditioner indoor unit of the present disclosure. In this embodiment, the air conditioner indoor unit includes a housing 1, a heat exchanger 4, a fresh air module, a second fan 6, a first motor 5, and a bearing 7.

[0255] In the above-mentioned air-conditioning indoor unit, as shown in Figure 43, the casing 1 is configured to form the overall appearance of the air-conditioning indoor unit, and the casing 1 has a top and a bottom, the top of the casing 1 and the bottom of the casing 1 are opposite ends, and the direction from the top of the casing 1 to the bottom of the casing 1 is the height direction of the casing 1; the left side of the casing 1 and the right side of the casing 1 are opposite sides, and the direction from the left side of the casing 1 to the right side of the casing 1 is the length direction of the casing 1; the front side of the casing 1 and the rear side of the casing 1 are opposite sides, and the direction from the front side of the casing 1 to the rear side of the casing 1 is the thickness direction of the casing 1; in this embodiment, the air-conditioning indoor unit is a wall-mounted unit, and the rear side of the casing 1 is arranged toward the wall; a heat exchange duct is defined inside the casing 1, and the casing 1 is provided with a casing air inlet 11 and a second air outlet 15. The casing air inlet 11 and the second air outlet 15 are respectively connected to the heat exchange air duct. The casing air inlet 11 is located at the top of the casing 1. A second grille is provided at the casing air inlet 11 to prevent debris from entering the interior of the casing 1; the second air outlet 15 is located on the front lower side of the casing 1, and an air guide plate 2 is provided at the second air outlet 15. The air guide plate 2 is connected to the casing 1 in an openable and closable manner to open or close the second air outlet 15; it should be noted that the casing 1 is also provided with a vent 12 to allow outdoor fresh air to flow into the room from the vent 12; in some embodiments, the vent 12 is located on the left side of the casing air inlet 11 and the opening is set upward, so that the outdoor fresh air flows into the room in an upward direction, thereby avoiding the mixing of outdoor fresh air and air-conditioning air.

[0256] In some embodiments, as shown in Figures 46 and 48, the casing 1 is provided with a first installation cavity 14, a second installation cavity 13 and a third installation cavity 16, and the second installation cavity 13, the first installation cavity 14 and the third installation cavity 16 are distributed in sequence along the length direction of the casing 1; the first installation cavity 14 is configured to install the second fan 6; the second installation cavity 13 is configured to install the first motor 5; the third installation cavity 16 is configured to install the fresh air module.

[0257] In other embodiments, the third mounting cavity 16 is located on the left side of the first mounting cavity 14, and the second mounting cavity 13 is located on the right side of the first mounting cavity 14; the second mounting cavity 13 and the first mounting cavity 14 are separated from each other by the first mounting portion 17, and the first mounting cavity 14 and the third mounting cavity 16 are separated from each other by the second mounting portion 18; it should be noted that the third mounting cavity 16, the first mounting cavity 14 and the second mounting cavity 13 are arranged in sequence from left to right along the length direction of the casing 1.

[0258] In the aforementioned air conditioner indoor unit, as shown in FIG44 , the heat exchanger 4 is configured to heat the indoor air within the housing 1 to generate conditioned air to meet the user's cooling or heating needs. The heat exchanger 4 is installed within the heat exchange air duct. It should be noted that the heat exchanger 4 is located near the housing air inlet 11. It should also be noted that the conditioned air can be cold air, hot air, or even air at room temperature.

[0259] In the above-mentioned air-conditioning indoor unit, as shown in Figures 44 to 46, the fresh air module is configured to introduce outdoor fresh air into the room; the fresh air module includes a volute body 3 and a first fan 9, the volute body 3 is installed in the third installation cavity 16, and a fresh air duct is defined in the volute body 3. The first fan 9 is installed in the fresh air duct, and the fresh air duct is provided with a first air inlet 37 and a first air outlet 35. The first air inlet 37 is connected to the outdoors, and the first air outlet 35 is connected to the vent 12; through the operation of the first fan 9, the outdoor fresh air is introduced into the fresh air duct from the first air inlet 37, passes through the first air outlet 35, and flows into the room from the vent 12; it should be noted that in some embodiments, a purification module 34 is provided in the fresh air duct to purify the outdoor fresh air flowing into the room.

[0260] In the above-mentioned air-conditioning indoor unit, as shown in Figures 52, 53 and 57, the first fan 9 is configured to introduce indoor fresh air into the room; the first fan 9 is installed in the ventilation cavity 321, and through the operation of the first fan 9, the outdoor fresh air is introduced into the ventilation cavity 321 through the pipeline from the first air inlet 37, enters the ventilation cavity 321 after purification by the purification module 34, and flows to the room through the first air outlet 35 and the vent 12; it should be noted that the first fan 9 is a centrifugal fan; it should also be noted that the first fan 9 will inevitably generate noise when it is in operation. Therefore, in addition to the outdoor fresh air, the ventilation cavity 321 also contains the noise generated by the operation of the first fan 9.

[0261] In the above-mentioned air-conditioning indoor unit, as shown in Figures 55 and 56, the volute body 3 includes a first volute 31, a second volute 32 and a ventilation shell 33; the first volute 31 and the second volute 32 are arranged opposite to each other and jointly form a ventilation chamber 321, and the first fan 9 is installed in the ventilation chamber 321; the ventilation shell 33 and the second volute 32 are arranged opposite to each other on the side away from the first volute 31 to jointly form a purification chamber 331; the second volute 32 is provided with a first grille 322, and the first grille 322 is located at the connection between the purification chamber 331 and the ventilation chamber 321, so that the purification chamber 331 and the ventilation chamber 32 are separated. 1 are interconnected; wherein, the first air inlet 37 is opened in the purification chamber 331, the first air outlet 35 is opened in the ventilation cavity 321, and the purification module 34 is arranged in the purification chamber 331, so that the purification module 34 purifies the outdoor fresh air entering the purification chamber 331 through the first air inlet 37, and makes the air in the purification chamber 331 purified by the purification module 34 enter the ventilation cavity 321 through the first grille 322, and flow into the room through the ventilation port 12 through the first air outlet 35; it should be noted that the ventilation cavity 321 and the purification chamber 331 together form a fresh air duct.

[0262] In some embodiments, the purification module 34 includes a purification frame and a filter. The filter is arranged on the purification frame, and the filter is configured to filter and purify the outdoor fresh air to prevent impurities and flocs mixed in the outdoor fresh air from entering the room. It should be noted that the purification chamber 331 is provided with a socket so that the purification module 34 can be extended into the purification chamber 331 through the socket, thereby realizing the installation of the purification module 34. When the purification module 34 needs to be disassembled, the purification module 34 can be unplugged from the socket. By detachably installing the purification module 34 in the purification chamber 331, it is convenient for users to disassemble, clean and replace the filter by themselves. In this embodiment, the disassembly and installation method of the purification module 34 is simple and easy to operate.

[0263] In the above-mentioned air-conditioning indoor unit, as shown in Figures 52, 53 and 60, the second fan 6 is configured to introduce indoor air into the interior of the casing 1, and after heat exchange in the heat exchanger 4 to form conditioned air, the conditioned air is flowed into the room from the second air outlet 15; the second fan 6 is installed in the first installation cavity 14 and is located on the side of the heat exchanger 4 away from the casing air inlet 11; the second fan 6 is connected to the first motor 5, and the first motor 5 is installed in the second installation cavity 13 to drive the second fan 6 to operate; it should be noted that the end of the second fan 6 away from the first motor 5 is connected to the first fan 9, so that the first motor 5 can drive the second fan 6 and the first fan 9 to operate simultaneously; it should also be noted that the second fan 6 is a cross-flow fan.

[0264] In some embodiments, as shown in Figure 53, the second fan 6 extends along the length direction of the casing 1, and a fan sleeve 62 is provided at the end of the second fan 6 connected to the first motor 5. The fan sleeve 62 is provided with a mounting hole, and the rotating shaft of the first motor 5 extends into the mounting hole to connect the first motor 5 to the second fan 6; the end of the second fan 6 away from the first motor 5 is connected to the connecting shaft 10, and is connected to the first fan 9 through the connecting shaft 10, so that the second fan 6 and the first fan 9 can operate simultaneously.

[0265] In other embodiments, a drive shaft 61 is provided at an end of the second fan 6 away from the first motor 5 , and the drive shaft 61 is connected to an end of the connecting shaft 10 away from the first fan 9 .

[0266] In the above-mentioned air-conditioning indoor unit, as shown in Figure 59, the connecting shaft 10 includes a first connecting shaft 101 and a second connecting shaft 102, the first connecting shaft 101 and the second connecting shaft 102 are coaxially arranged and extend respectively along the axial direction of the second fan 6; the first connecting shaft 101 is connected to the first fan 9, and the second connecting shaft 102 is connected to the first connecting shaft 101 at one end along the axial direction of the second fan 6, and the other end is connected to the drive shaft 61 through the reserved hole 311; the second connecting shaft 102 and the first connecting shaft 101 jointly define a step, which is located in the ventilation cavity 321 and is provided between the first connecting shaft 101 and the second connecting shaft The connection point of the shaft 102 is used to locate the connection position of the first fan 9 and the first connecting shaft 101; it should be noted that the distance between a point on the axis of the second fan 6 and a point on the outer periphery of the first connecting shaft 101 is D1, the distance between a point on the axis of the second fan 6 and a point on the outer periphery where the second connecting shaft 102 passes through the reserved hole 311 is D2, and the distance between a point on the axis of the second fan 6 and a point on the inner edge of the reserved hole 311 is D3, D1<D2≤D3, that is, the outer diameter of the first connecting shaft 101 is smaller than the outer diameter of the second connecting shaft 102 and is smaller than or equal to the inner diameter of the reserved hole 311.

[0267] In some embodiments, the first connecting shaft 101 is provided with a constraint portion 1011, which is located at one end of the first connecting shaft 101 where it is connected to the first fan 9, and the constraint portion 1011 cooperates with the step to constrain the connection position between the first fan 9 and the first connecting shaft 101; it should be noted that the constraint portion 1011 is provided with an external thread, which extends along the axial direction of the first connecting shaft 101 and is connected to a fastener, and the fastener contacts the side of the first fan 9 away from the second fan 6 to limit the first fan 9 from moving in a direction away from the second fan 6.

[0268] In some embodiments, a first connecting portion is provided at the end of the second connecting shaft 102 away from the first connecting shaft 101, and a second connecting portion is provided at the end of the drive shaft 61 away from the second fan 6. The first connecting portion and the second connecting portion cooperate with each other to connect the second connecting shaft 102 to the drive shaft 61.

[0269] In other embodiments, the first connection part is provided with a first notch 103, which is located on the outer periphery of the first connection part and extends axially along the second fan 6; the second connection part is provided at the first notch 103 to locate the circumferential connection position of the second connection part and the first connection part; it should be noted that, as shown in Figure 61, the first connection part is provided with a first connection hole 1031, which is connected to the first notch 103, and the second connection part is provided with a connection column 611, which is inserted into the first connection hole 1031 to locate the connection position of the first connection part and the second connection part.

[0270] In other embodiments, the second connecting portion is provided with a second notch, and the first connecting portion is located at the second notch to locate the circumferential connection position of the first connecting portion and the second connecting portion; it should be noted that the connecting column 611 is located in the second notch, and the connecting column 611 is provided with a second connecting hole 6111, and the second connecting hole 6111 extends axially along the connecting column 611 and passes through the connecting column 611; the opening direction of the second connecting hole 6111 is set in the same direction as the opening direction of the first connecting hole 1031, and the same fastener is simultaneously in the second connecting hole 6111 and the first connecting hole 1031, so that the second connecting shaft 102 is fixedly connected to the drive shaft 61.

[0271] In other embodiments, the first connecting shaft 101 and the second connecting shaft 102 are integrally formed to increase the overall strength of the connecting shaft 10 .

[0272] In order to support the rotation of the second connecting shaft 102, the second connecting shaft 102 is connected to a bearing 7, which is located outside the volute body; it should be noted that in other embodiments, the drive shaft 61 is also connected to the bearing 7, so that the bearing 7 provides support for the rotation of the second connecting shaft 102 and the rotation of the drive shaft 61.

[0273] In some embodiments, the bearing 7 is defined to form a bearing cavity 714 , and the first connecting portion and the second connecting portion are respectively disposed in the bearing cavity 714 , so that the bearing 7 simultaneously supports the second connecting shaft 102 and the driving shaft 61 for rotation.

[0274] It should be noted that the first volute 31 is provided with a reserved hole 311, which is connected to the ventilation chamber 321, and the opening of the reserved hole 311 is set toward the second fan 6, so that the end of the second connecting shaft 102 away from the first connecting shaft 101 can pass through the reserved hole 311 and be connected to the second fan 6.

[0275] In the above-mentioned air-conditioning indoor unit, as shown in Figures 62 to 64, the bearing 7 is sleeved on the outer periphery of the drive shaft 61 and is configured to support the rotation of the drive shaft 61; the bearing 7 is provided with a bearing cavity 714 for the drive shaft 61 to pass through, and the drive shaft 61 passes through the bearing cavity 714 and extends into the ventilation cavity 321 to be connected to the first fan 9; specifically, as shown in Figures 56 to 59, the bearing 7 includes a bearing sleeve 71 and a bearing ball 72, and the bearing cavity 714 is arranged through the bearing sleeve 71 and the bearing ball 72; the openings at both ends of the bearing cavity 714 are arranged correspondingly toward the first fan 9 and the second fan 6; the drive shaft 61 is arranged through the bearing cavity 714; it should be noted that an installation space 715 is provided in the bearing sleeve 71, and the installation space 715 is connected to the bearing cavity 714 and is arranged close to the second fan 6; the bearing ball 72 is arranged in the installation space 715 and is connected to the drive shaft 61 and the second connecting shaft 102.

[0276] In the above-mentioned air conditioner indoor unit, as shown in Figures 47, 50, 51, and 65-67, the bearing seat 8 is configured to mount the bearing 7 so that the bearing 7 can better support the drive shaft 61. The bearing seat 8 is disposed outside the bearing 7 and is connected to the housing 1. Specifically, as shown in Figures 60-62, a first through-cavity 84 is defined within the bearing seat 8. The first through-cavity 84 is configured to mount the bearing 7. The bearing 7 is disposed within the first through-cavity 84, and the outer periphery of the bearing sleeve 71 is tightly fitted with the inner wall of the first through-cavity 84, thereby connecting the bearing 7 to the bearing seat 8. The first through-cavity 84 extends along the length of the housing 1, with the openings at both ends of the first through-cavity 84 correspondingly disposed toward the first volute 31 and the second fan 6, so that the drive shaft 61 can extend into the first through-cavity 84 to connect with the bearing 7 and pass through the first through-cavity 84 to connect with the second fan 6. The bearing seat 8 is configured to mount the bearing 7 so that the bearing 7 can better support the drive shaft 61 and the second connecting shaft 102. The bearing seat 8 is disposed outside the bearing 7 and mounted on the housing 1. Specifically, as shown in Figures 65-67, a first through-cavity 84 is provided inside the bearing seat 8. The first through-cavity 84 is configured to mount the bearing 7. The bearing 7 is disposed within the first through-cavity 84, and the outer periphery of the bearing sleeve 71 is tightly fitted with the inner wall of the first through-cavity 84, so that the bearing 7 is connected to the bearing seat 8. The first through-cavity 84 extends along the length of the housing 1, so that the second connecting shaft 102 can extend into the first through-cavity 84 to connect with the bearing 7 and pass through the first through-cavity 84 to connect with the second fan 6. It should be noted that a connecting platform is provided in the first through cavity 84, which is located in the first through cavity 84 and is arranged circumferentially along the first through cavity 84; the bearing sleeve 71 is provided with a connecting block 711, which is located on the outer periphery of the bearing sleeve 71 and is arranged circumferentially along the bearing sleeve 71, and the connecting block 711 abuts against the connecting platform, so that the bearing sleeve 71 is pressed and assembled with the inner wall of the first through cavity 84, thereby fixing the bearing 7 and the bearing seat 8; it should also be noted that the connecting platform is connected to the inner wall of the first through cavity 84, and the inner diameter of the connecting platform gradually decreases along the axial direction of the first through cavity 84 from its direction close to the second fan 6, so that the closer the bearing sleeve 71 is to the second fan 6, the greater the mutual extrusion force between the bearing sleeve 71 and the inner wall of the first through cavity 84, which facilitates the connection between the bearing 7 and the bearing seat 8.

[0277] In some embodiments, the bearing seat 8 is provided with a stopper 85 , which is located at the opening of the first through cavity 84 toward the second fan 6 . The stopper 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from separating from the first through cavity 84 .

[0278] In some embodiments, the bearing seat 8 is provided with a positioning block 86, which is located in the first through cavity 84; the bearing sleeve 71 is provided with a connecting space 712 corresponding to the positioning block 86, and the connecting space 712 is located on the outer periphery of the bearing sleeve 71; the positioning block 86 is provided in the connecting space 712 to locate the installation position of the bearing 7 in the first through cavity 84.

[0279] In some embodiments, a buffer rib 713 is provided on the outer periphery of the bearing sleeve 71. The buffer rib 713 is protruding from the outer surface of the bearing sleeve 71 and abuts against the inner wall of the first through cavity 84. On the one hand, the buffer rib 713 can facilitate the installation of the bearing sleeve 71 in the first through cavity 84. On the other hand, it can also increase the firmness of the abutment between the bearing sleeve 71 and the inner wall of the first through cavity 84, and can also protect the part of the bearing sleeve 71 that contacts the inner wall of the first through cavity 84.

[0280] In order to facilitate the installation of the bearing seat 8, as shown in Figures 48 and 49, the second mounting portion 18 is provided with an installation channel 181, which extends along the length direction of the casing 1. The bearing seat 8 is arranged in the installation channel 181 to position the bearing seat 8 in the installation position of the second mounting portion 18.

[0281] In some embodiments, a accommodating cavity is provided in the second mounting portion 18, the opening of the accommodating cavity is set toward the top of the casing 1 and is connected to the mounting channel 181, and a first support platform 183 is provided in the accommodating cavity, which abuts against the bottom of the bearing seat 8 to support the bearing seat 8.

[0282] In some embodiments, as shown in Figures 65 and 66, the bearing seat 8 is provided with an extension portion 83, which is arranged in the accommodating cavity to locate the connection position of the bearing seat 8 and the second mounting portion 18; it should be noted that the extension portion 83 is configured as two, and the two extension portions 83 are respectively located on the outside of the bearing seat 8 and extend along the height direction of the casing 1; the two extension portions 83 are respectively arranged opposite to each other along the length direction of the casing 1 and there is a gap between the two; the first support platform 183 is located between the two extension portions 83; it should also be noted that the accommodating cavity includes a first accommodating cavity and a second accommodating cavity, the first accommodating cavity and the second accommodating cavity are arranged side by side, the first accommodating cavity is arranged close to the fresh air module, and the second accommodating cavity is arranged close to the second fan 6; the two extension portions 83 are correspondingly arranged in the first accommodating cavity and the second accommodating cavity to further position the bearing seat 8.

[0283] In other embodiments, as shown in Figures 51 and 65, the clamping portion 82 is provided in the extension portion 83 in the first accommodating cavity and is located on the side of the extension portion 83 away from the other extension portion 83; the second mounting portion 18 is provided with a clamping space 184, the clamping space 184 is communicated with the first accommodating cavity, and the clamping portion 82 is provided in the clamping space 184 to fix the bearing seat 8 to the second mounting portion 18, thereby installing the bearing seat 8 in the housing 1.

[0284] In some embodiments, as shown in Figure 65, the bearing seat 8 is further provided with a support portion 81, which is connected to the top of the two extension portions 83; as shown in Figure 49, a second support platform 182 is further provided in the accommodating cavity, and the support portion 81 is located on the top of the second support platform 182 to support the bearing seat 8; it should be noted that the support portion 81 is configured as two, and the two support portions 81 are symmetrically arranged along the thickness direction of the casing 1; and the second support platform 182 is also configured as two, and the two second support platforms 182 are arranged in a one-to-one correspondence with the two support portions 81.

[0285] It should be noted that, since the first motor 5 drives the second fan 6 and the first fan 9 to operate simultaneously, the first fan 9 cannot stop working alone, resulting in that the fresh air function cannot be turned off when the air-conditioning indoor unit is working. Therefore, the air-conditioning indoor unit is provided with a switch component 36 at the first air inlet 37, and the switch component 36 is used to open or close the first air inlet 37 to control whether outdoor fresh air is introduced into the purification chamber 331, thereby controlling the opening and closing of the fresh air function; when the air-conditioning indoor unit is working, when the fresh air function needs to be turned off, closing the first air inlet 37 can prevent outdoor fresh air from being introduced into the purification chamber 33 1, thereby preventing outdoor fresh air from flowing into the room through the first air outlet 35; when the fresh air function needs to be turned on, the first air inlet 37 can be opened to allow outdoor fresh air to be introduced into the purification chamber 331 through the first air inlet 37, thereby allowing outdoor fresh air to flow into the room through the first air outlet 35; it should be noted that closing the first air inlet 37 by the switch component 36 can also prevent fresh air from flowing back into the room when the air-conditioning indoor unit is turned off, thereby reducing indoor air noise and wind feeling when the fresh air function is not turned on, and improving user experience; it should also be noted that the switch component 36 belongs to conventional technical means in this field and will not be described in detail here.

[0286] The working principle of the above-mentioned air-conditioning indoor unit is as follows: the first motor 5 drives the second fan 6 to rotate, the drive shaft 61 is connected to the bearing ball 72, the second connecting shaft 102 is also connected to the bearing ball 72, the second connecting shaft 102 passes through the bearing cavity 714 and is connected to the first connecting shaft 101 and drives the first fan 9 to rotate, the second connecting shaft 102 is located in the reserved hole 311, and the gap between the outer diameter of the second connecting shaft 102 and the inner diameter of the reserved hole 311 is small, so that the outdoor fresh air and / or noise in the ventilation cavity 321 are not easy to leak from the gap.

[0287] The steps for connecting the drive shaft 61 and the first fan 9 in the above-mentioned air-conditioning indoor unit are as follows: first, the drive shaft 61 passes through the reserved hole 311 and is connected to the first fan 9 , and then the second volute 32 is connected to the first volute 31 .

[0288] The above-mentioned air-conditioning indoor unit designs the connecting shaft 10 as a first connecting shaft 101 and a second connecting shaft 102, and uses the first connecting shaft 101 and the second connecting shaft 102 to connect to form a step, so that the step can position the first fan 9, and there is no need to set an additional retaining ring to position the first fan 9; and the outer diameter of the second connecting shaft 102 is larger than the outer diameter of the first connecting shaft 101, and the second connecting shaft 102 is used to pass through the reserved hole 311 to connect with the second fan 6 to reduce the gap size between the connecting shaft 10 and the reserved hole 311, thereby preventing outdoor fresh air and / or noise in the volute body 3 from leaking from the gap; the above-mentioned air-conditioning indoor unit has a large fresh air volume and low noise, and condensation is not easy to form at the reserved hole 311.

[0289] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

[0290] As shown in Figures 68 to 74 , in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger 200, a second fan 400, a volute body 700, a first fan 300, an electrical control box 600, and a first motor 500. The housing 100 is provided with a first inner cavity and a second inner cavity along its length. The housing 100 is provided with a second air inlet 101 at the top, and a third air outlet 102 at the front bottom.

[0291] The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow. The second fan 400 is disposed in the first inner cavity, and the second fan 400 is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the second air inlet 101, and after being heat exchanged by the indoor heat exchanger 200, is output to the room through the third air outlet 102.

[0292] The volute body 700 is disposed in the second inner cavity and is provided with a first air inlet and a first air outlet 720. The first fan 300 is disposed in the volute body 700. The first fan 300 is disposed in the volute body 700. The first motor 500 is disposed between the volute body 700 and the second fan 400, and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0293] The electric control box 600 is arranged in the second inner cavity; an electric control board 610 is arranged in the electric control box 600, and the electric control board 610 is electrically connected to the first motor 500 through a line; the electric control box 600 is arranged on one side of the volute body 700 close to the top of the shell 100.

[0294] With this solution, the electrical control box 600 and the volute body 700 are located on the same side of the second fan 400, and the electrical control box 600 is located on top of the volute body 700, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing material usage, production, and processing costs. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, shortening the wiring on the electrical control board 610 connecting to the first motor 500, improving safety and saving costs.

[0295] In the prior art, the electric control box 600 and the volute body 700 are respectively arranged at the two ends of the second fan 400. Therefore, the length of the shell 100 is the length of the electric control box 600 plus the length of the volute body 700 plus the length of the second fan 400. In the present disclosure, because the electric control box 600 is arranged on the side of the volute body 700 facing the top of the shell 100, the length of the shell 100 is the length of the second fan 400 plus the length of the volute body 700. In addition, in the prior art, the first motor 500 drives the second fan 400 to rotate, and the second fan 400 then drives the first fan 300 to rotate. Its length is relatively long, and the first fan 300 is far away from the first motor 500. Therefore, when rotating, it affects the rotation balance and has poor rotation stability. The first fan 300 then jumps in the volute body 700, and the first fan 300 collides with the volute body 700 to generate noise. In the present disclosure, the first fan 300 and the second fan 400 are closer to the first motor 500 , and the rotation stability of the first fan 300 and the second fan 400 is better, which reduces noise and improves user experience.

[0296] Referring to Figures 70 to 83, in some embodiments, the electric control box 600 is disposed above the volute body 700.

[0297] In some embodiments, the electric control box 600 is disposed on a side of the indoor heat exchanger 200 close to the volute body 700 .

[0298] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0299] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0300] In some embodiments, the thickness direction of the electric control box 600 is perpendicular to the axis of the first fan 300 .

[0301] In some embodiments, the first motor 500 has a single output shaft, with both ends of the output shaft coaxially connected to the first fan 300 and the second fan 400. When the first motor 500 rotates, the output shaft drives the second fan 400 and the first fan 300 to rotate simultaneously.

[0302] In some embodiments, the first motor 500 has two output shafts, namely a first output shaft and a second output shaft. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the first motor 500 is running, the first output shaft and the second output shaft rotate synchronously.

[0303] In some embodiments, the output shaft of the first motor 500 is connected to the first fan 300. The first fan 300 is provided with a transmission assembly, which is connected to the second fan 400. The first motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0304] In some embodiments, the output shaft of the first motor 500 is connected to the second fan 400. The second fan 400 is provided with a transmission assembly, which is connected to the first fan 300. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0305] In some embodiments, the indoor heat exchanger 200 has a pipeline on the side facing the volute body 700, through which refrigerant flows. The first motor 500 is disposed between the second fan 400 and the volute body 700. Because the indoor heat exchanger 200 is located above the second fan 400, the pipeline on the indoor heat exchanger 200 is located above the first motor 500, which further saves space and shortens the length of the air conditioner.

[0306] In some embodiments, the electrical control board 610 is connected to the indoor heat exchanger 200 via a first circuit, with the end of the first circuit near the electrical control board 610 higher than the end of the first circuit near the indoor heat exchanger 200. During operation of the wall-mounted air conditioner, condensed water from the indoor heat exchanger 200 may flow onto the first circuit. However, with the above solution, gravity forces the condensed water to collect only at the end of the first circuit near the indoor heat exchanger 200. This prevents condensed water from flowing through the first circuit to the electrical control board 610, preventing short circuits in the electrical control board 610 and improving safety.

[0307] In some embodiments, the first line is inclined, and the first line is inclined from top to bottom toward the indoor heat exchanger 200. In other embodiments, the first line is inclined from the direction away from the second air inlet 101 toward the direction close to the indoor heat exchanger 200.

[0308] Referring to Figures 70 to 83 , in some embodiments, the direction from the bottom of the housing 100 toward the top of the housing 100 is the height direction of the housing 100; the electric control box 600 and the volute body 700 are spaced apart along the height direction of the housing 100. This prevents vibration of the volute body 700 from being transmitted to the electric control box 600, reduces the possibility of vibration of the electric control box 600 and the electric control board 610, and thereby increases the service life of the electric control board 610 in the electric control box 600.

[0309] In some embodiments, the volute body 700 and the electric control box 600 are both connected to the housing 100 .

[0310] In some embodiments, the wall-mounted air conditioner is hung on a wall, the side of the housing 100 away from the wall is the front side, and a front panel is provided on the front side of the housing 100.

[0311] In some embodiments, the electric control box 600 includes a box body 601 and a cover 602 . One side of the box body 601 is open, and the cover 602 is configured to close the opening of the box body 601 to seal the electric control board 610 in the box body 601 .

[0312] In some embodiments, the opening of the box body 601 faces the front side of the housing 100. The user can directly access the electrical box 600 from the front side of the housing 100 for maintenance, which is convenient for user maintenance.

[0313] In some embodiments, the opening of the box body 601 is toward the top of the housing 100, thereby being away from the volute body 700 to reduce interference during maintenance.

[0314] In some embodiments, the opening of the box body 601 faces the side away from the indoor heat exchanger 200. The user can repair the electrical box 600 from the end of the housing 100 close to the electrical box 600, which is convenient for user maintenance.

[0315] Referring to Figures 78 to 83 , in some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740. A first ventilation cavity 750 is formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity 750, and the first air outlet 720 is in communication with the first ventilation cavity 750. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0316] In some embodiments, the first split housing 730 is disposed on a side of the second split housing 740 close to the first motor 500. The first split housing 730 is provided with an axial hole for the output shaft of the first motor 500 to pass through.

[0317] In some embodiments, a gap is set between the shaft hole and the output shaft of the first motor 500 .

[0318] In some embodiments, a bearing is disposed within the shaft hole. The bearing comprises an outer ring and an inner ring coaxially disposed within the outer ring. The inner ring is rotatably connected to the outer ring and coaxially sleeved around the output shaft of the first motor 500. The outer ring is coaxially secured within the shaft hole. The bearing ensures that the shaft hole and the output shaft of the first motor 500 are coaxial. This prevents vibrations from the first fan 300 from colliding with the volute body 700 and generating noise when the first motor 500 drives the first fan 300.

[0319] In some embodiments, the first split shell 730 and the second split shell 740 are spliced ​​together. The connection between the first split shell 730 and the second split shell 740 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0320] In some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730 to form a second ventilation cavity 760. The second ventilation cavity 760 is connected to the first ventilation cavity 750. The first air inlet is connected to the second ventilation cavity 760. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet and then enters the first ventilation cavity 750. Under the action of the first fan 300, it is output to the indoor through the first air outlet 720.

[0321] In some embodiments, the first half shell 741 and the second half shell 742 are spliced ​​together. The connection between the first half shell 741 and the second half shell 742 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0322] In some embodiments, a first ventilation cavity 750 is formed between the first split shell 730 and the second half shell 742 .

[0323] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first ventilation cavity 750 with the second ventilation cavity 760. A filter 800 is disposed within the second ventilation cavity 760, positioned between the first air inlet and the ventilation channel. When the motor drives the first fan 300, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity 750 through the ventilation channel. Under the action of the first fan 300, the fresh air is output to the indoor space through the first air outlet 720.

[0324] 70 to 83 , in some embodiments, the first split shell 730 , the second half shell 742 , and the first half shell 741 are distributed along the axial direction of the second fan 400 .

[0325] In some embodiments, the ventilation channel is opened in the same direction as the axial direction of the first fan 300 , and the ventilation channel passes through the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760 .

[0326] In some embodiments, the filter screen 800 includes a frame and a filter screen, wherein the filter screen is disposed within the frame and is detachably connected to the frame. When the filter screen 800 needs to be replaced, the filter screen can be replaced separately, thereby saving costs.

[0327] In some embodiments, the side of the filter 800 facing away from the second half-shell 742 is the windward side, and the axis of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 covers a ventilation channel, and the fresh air in the second ventilation cavity 760 must pass through the filter 800 before entering the first ventilation cavity 750 through the ventilation channel. This ensures that the outdoor fresh air is filtered and purified by the filter 800, improving the user experience.

[0328] In some embodiments, the volute body 700 is provided with an insertion channel that communicates with the second ventilation cavity 760. The insertion channel is configured to allow the filter 800 to be inserted into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the insertion channel, facilitating maintenance and replacement of the filter 800.

[0329] In some embodiments, the insertion channel is opened on the first half shell 741 and / or the second half shell 742 .

[0330] In some embodiments, the plug-in channel is opened on a side of the volute body 700 facing the front panel of the housing 100; or; the plug-in channel is opened on a side of the volute body 700 facing the bottom of the housing 100.

[0331] Please refer to Figures 68 to 83. In some embodiments, a ventilation pipe 900 is provided on the housing 100. The ventilation pipe 900 is connected to the first air inlet, and outdoor fresh air enters the second ventilation cavity 760 in the ventilation housing 100 through the ventilation pipe 900.

[0332] In some embodiments, a first fresh air damper is disposed within the volute body 700 and is configured to open or close the first air inlet. When the fresh air mode is on, the first fresh air damper opens the first air inlet; when the fresh air mode is off, the first fresh air damper closes the first air inlet, preventing the input of fresh air.

[0333] In some embodiments, a first driving member is disposed within the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so as to open or close the first air inlet. The first driving member includes but is not limited to an electric motor, a motor, a gas rod, or a hydraulic rod.

[0334] In some embodiments, a second fresh air baffle is provided on the volute body 700, and the second fresh air baffle is configured to open or close the first air outlet 720. When the fresh air mode is on, the first fresh air baffle opens the first air inlet, and the second fresh air baffle opens the first air outlet 720. When the fresh air mode is off, the first fresh air baffle closes the first air inlet, and the second fresh air baffle closes the first air outlet 720. Because the first fan 300 and the second fan 400 are simultaneously driven by the first motor 500, the first fan 300 will still rotate within the volute body 700 when the fresh air mode is off. The second fresh air baffle closes the first air outlet 720, creating a closed space within the volute body 700 and reducing noise generated by the airflow.

[0335] In some embodiments, the volute body 700 is provided with a second driving member, which is configured to drive the second fresh air baffle to move so as to open or close the first air outlet 720. The second driving member includes but is not limited to a motor, a pneumatic rod, or a hydraulic rod.

[0336] In some embodiments, a wind deflector is provided at the third air outlet 102, and the wind deflector is configured to close the third air outlet 102. When the wall-mounted air conditioner is not in use, the wind deflector closes the third air outlet 102 to prevent dust from entering the housing 100 and improve the aesthetics and integrity.

[0337] In some embodiments, a third driving member is provided on the housing 100 , and the third driving member is configured to drive the air guide plate to flip, so that the air guide plate opens or closes the third air outlet 102 .

[0338] In some embodiments, the flip angle of the air guide plate is adjusted by a third driving member to guide the airflow output through the third air outlet 102 .

[0339] In some embodiments, the first driving member, the second driving member, the third driving member and the electric control board 610 are electrically connected via lines.

[0340] Referring to Figures 68 to 83, the present disclosure further provides a wall-mounted air conditioner, comprising:

[0341] The housing 100 includes an indoor heat exchanger 200, a second fan 400, a volute body 700, a first fan 300, an electrical control box 600, and a first motor 500. The housing 100 includes a first inner cavity and a second inner cavity along its length. The housing 100 includes a second air inlet 101 at the top and a third air outlet 102 at the bottom of the front side.

[0342] The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow. The second fan 400 is disposed in the first inner cavity, and the second fan 400 is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the second air inlet 101, and after being heat exchanged by the indoor heat exchanger 200, is output to the room through the third air outlet 102.

[0343] The volute body 700 is disposed in the second inner cavity and is provided with a first air inlet and a first air outlet 720. The first fan 300 is disposed in the volute body 700. The first fan 300 is disposed in the volute body 700. The first motor 500 is disposed between the volute body 700 and the second fan 400, and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0344] The electric control box 600 is arranged in the second inner cavity; an electric control board 610 is arranged in the electric control box 600, and the electric control board 610 is electrically connected to the first motor 500 through a line; the electric control box 600 is arranged on the side of the volute body 700 facing the second air inlet 101.

[0345] With this solution, the electrical control box 600 and the volute body 700 are located on the same side of the second fan 400, and the electrical control box 600 is located on top of the volute body 700, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing material usage, production, and processing costs. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, shortening the wiring on the electrical control board 610 connecting to the first motor 500, improving safety and saving costs.

[0346] In some embodiments, the electric control box 600 is disposed above the volute body 700 .

[0347] In some embodiments, the electric control box 600 is disposed on a side of the indoor heat exchanger 200 close to the volute body 700 .

[0348] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0349] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0350] As shown in Figures 84 to 93, in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger 200, a second fan 400, a volute body 700, a first fan 300, an electrical control box 600, and a first motor 500. A first inner cavity and a second inner cavity are provided inside the housing 100 along its length. A second air inlet 101 is provided at the top of the housing 100, and a third air outlet 102 is provided at the bottom of the housing 100.

[0351] The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow. The second fan 400 is disposed in the first inner cavity, and the second fan 400 is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the second air inlet 101, and after being heat exchanged by the indoor heat exchanger 200, is output to the room through the third air outlet 102.

[0352] The volute body 700 is disposed in the second inner cavity and is provided with a first air inlet and a first air outlet 720 ; the first fan 300 is disposed in the volute body 700 ; the first motor 500 is disposed between the volute body 700 and the second fan 400 , and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously;

[0353] The electric control box 600 is arranged in the second inner cavity; an electric control board 610 is arranged in the electric control box 600, and the electric control board 610 is electrically connected to the first motor 500 through a line; the electric control box 600 is arranged on one side of the volute body 700 close to the bottom of the shell 100.

[0354] With this solution, the electrical control box 600 and the volute body 700 are located on the same side of the second fan 400. Furthermore, the electrical control box 600 is located at the bottom of the volute body 700, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing material usage, production, and processing costs. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, shortening the wiring on the electrical control board 610 connecting to the first motor 500. This improves safety and reduces costs.

[0355] In the prior art, the electric control box 600 and the volute body 700 are respectively arranged at the two ends of the second fan 400. Therefore, the length of the shell 100 is the length of the electric control box 600 plus the length of the volute body 700 plus the length of the second fan 400. In the present disclosure, because the electric control box 600 is arranged on the side of the volute body 700 facing the bottom of the shell 100, the length of the shell 100 is the length of the second fan 400 plus the length of the volute body 700. In addition, in the prior art, the first motor 500 drives the second fan 400 to rotate, and the second fan 400 then drives the first fan 300 to rotate. Its length is relatively long, and the first fan 300 is far away from the first motor 500. Therefore, when rotating, it affects the rotation balance and has poor rotation stability. The first fan 300 then jumps in the volute body 700, and the first fan 300 collides with the volute body 700 to generate noise. In the present disclosure, the first fan 300 and the second fan 400 are closer to the first motor 500 , and the rotation stability of the first fan 300 and the second fan 400 is better, which reduces noise and improves user experience.

[0356] In addition, in the present disclosure, the electrical box 600 is disposed on the side of the volute body 700 facing away from the second air inlet 101, so that the electrical box 600 is closer to the bottom. During maintenance, the user can simply open the electrical box 600 from the bottom for maintenance, without having to go to the top of the housing 100, which facilitates maintenance of the electrical box 600.

[0357] In some embodiments, the electric control box 600 is disposed below the volute body 700 .

[0358] In some embodiments, the electric control box 600 is disposed on a side of the volute body 700 facing the third air outlet 102 .

[0359] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0360] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0361] In some embodiments, the thickness direction of the electric control box 600 is perpendicular to the axis of the first fan 300 .

[0362] In some embodiments, the first motor 500 has a single output shaft, with both ends of the output shaft coaxially connected to the first fan 300 and the second fan 400. When the first motor 500 rotates, the output shaft drives the second fan 400 and the first fan 300 to rotate simultaneously.

[0363] In some embodiments, the first motor 500 has two output shafts, namely a first output shaft and a second output shaft. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the first motor 500 is running, the first output shaft and the second output shaft rotate synchronously.

[0364] In some embodiments, the output shaft of the first motor 500 is connected to the first fan 300. The first fan 300 is provided with a transmission assembly, which is connected to the second fan 400. The first motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0365] In some embodiments, the output shaft of the first motor 500 is connected to the second fan 400. The second fan 400 is provided with a transmission assembly, which is connected to the first fan 300. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0366] In some embodiments, the indoor heat exchanger 200 has a pipeline on the side facing the volute body 700, through which refrigerant flows. The first motor 500 is disposed between the second fan 400 and the volute body 700. Because the indoor heat exchanger 200 is located above the second fan 400, the pipeline on the indoor heat exchanger 200 is located above the first motor 500, which further saves space and shortens the length of the air conditioner.

[0367] In some embodiments, the direction from the bottom of the housing 100 toward the top of the housing 100 is the height direction of the housing 100; the electric control box 600 and the volute body 700 are spaced apart along the height direction of the housing 100. This prevents vibration of the volute body 700 from being transmitted to the electric control box 600, reduces the possibility of vibration of the electric control box 600 and the electric control board 610, and thereby increases the service life of the electric control board 610 in the electric control box 600.

[0368] In some embodiments, the volute body 700 and the electric control box 600 are both connected to the housing 100 .

[0369] In some embodiments, the wall-mounted air conditioner is hung on a wall, the side of the housing 100 away from the wall is the front side, and a front panel is provided on the front side of the housing 100.

[0370] Please refer to Figures 86 to 100. In some embodiments, the electric control box 600 includes a box body 601 and a cover 602. One side of the box body 601 is open, and the cover 602 is configured to close the opening of the box body 601 to seal the electric control board 610 in the box body 601.

[0371] In some embodiments, the opening of the box body 601 faces the front side of the housing 100. The user can directly access the electrical box 600 from the front side of the housing 100 for maintenance, which is convenient for user maintenance.

[0372] In some embodiments, the opening of the box body 601 faces the side away from the indoor heat exchanger 200. The user can repair the electrical box 600 from the end of the housing 100 close to the electrical box 600, which is convenient for user maintenance.

[0373] In some embodiments, the opening of the box body 601 faces the bottom of the housing 100. The user can directly repair the electrical box 600 from the bottom of the housing 100, which reduces the height required for user maintenance.

[0374] In some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740, with a first ventilation cavity formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity, and the first air outlet 720 is connected to the first ventilation cavity. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0375] In some embodiments, the first split housing 730 is disposed on a side of the second split housing 740 close to the first motor 500. The first split housing 730 is provided with an axial hole configured to allow the output shaft of the first motor 500 to pass through.

[0376] In some embodiments, a gap is set between the shaft hole and the output shaft of the first motor 500 .

[0377] In some embodiments, a bearing is disposed within the shaft hole. The bearing comprises an outer ring and an inner ring coaxially disposed within the outer ring. The inner ring is rotatably connected to the outer ring and coaxially sleeved around the output shaft of the first motor 500. The outer ring is coaxially secured within the shaft hole. The bearing ensures that the shaft hole and the output shaft of the first motor 500 are coaxial. This prevents vibrations from the first fan 300 from colliding with the volute body 700 and generating noise when the first motor 500 drives the first fan 300.

[0378] In some embodiments, the first split shell 730 and the second split shell 740 are spliced ​​together. The connection between the first split shell 730 and the second split shell 740 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0379] Referring to Figures 86 to 100 , in some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730 to form a second ventilation cavity, which communicates with the first ventilation cavity. The first air inlet communicates with the second ventilation cavity. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity through the first air inlet and then the first ventilation cavity. Under the action of the first fan 300, fresh air is output into the room through the first air outlet 720.

[0380] In some embodiments, the first half shell 741 and the second half shell 742 are spliced ​​together. The connection between the first half shell 741 and the second half shell 742 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0381] In some embodiments, a first ventilation cavity is formed between the first split shell 730 and the second half shell 742 .

[0382] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first and second ventilation cavities. A filter 800 is disposed within the second ventilation cavity, positioned between the first air inlet and the ventilation channel. When the motor drives the first fan 300, outdoor fresh air enters the second ventilation cavity through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity through the ventilation channel. Driven by the first fan 300, the fresh air is output to the interior of the room through the first air outlet 720.

[0383] In some embodiments, the first split shell 730 , the second half shell 742 , and the first half shell 741 are distributed along the axial direction of the second fan 400 .

[0384] In some embodiments, the opening direction of the ventilation channel is the same as the axial direction of the first fan 300 , and the ventilation channel passes through the second half shell 742 to achieve communication between the first ventilation cavity and the second ventilation cavity.

[0385] 86 to 100 , in some embodiments, the filter 800 includes a frame and a filter sheet, the filter sheet being disposed within the frame and being detachably connected to the frame. When the filter 800 needs to be replaced, the filter sheet can be replaced separately, saving costs.

[0386] In some embodiments, the side of the filter 800 facing away from the second half-shell 742 is the windward side, and the axis of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 covers a ventilation channel, and the fresh air in the second ventilation cavity must pass through the filter 800 before entering the first ventilation cavity through the ventilation channel. This ensures that the outdoor fresh air is filtered and purified by the filter 800, improving the user experience.

[0387] In some embodiments, the volute body 700 is provided with an insertion passage communicating with the second ventilation cavity, and the insertion passage is configured to allow the filter 800 to be inserted into the second ventilation cavity. The insertion and removal of the filter 800 in the second ventilation cavity is achieved through the insertion passage, facilitating maintenance and replacement of the filter 800.

[0388] In some embodiments, the insertion channel is opened on the first half shell 741 and / or the second half shell 742 .

[0389] In some embodiments, the plug-in channel is opened on a side of the volute body 700 facing the front panel of the housing 100; or; the plug-in channel is opened on a side of the volute body 700 facing the top of the housing 100.

[0390] In some embodiments, a ventilation pipe 900 is provided on the housing 100 , and the ventilation pipe 900 is connected to the first air inlet, and outdoor fresh air enters the second ventilation cavity in the ventilation housing 100 through the ventilation pipe 900 .

[0391] In some embodiments, a first fresh air damper is disposed within the volute body 700 and is configured to open or close the first air inlet. When the fresh air mode is on, the first fresh air damper opens the first air inlet; when the fresh air mode is off, the first fresh air damper closes the first air inlet, preventing the input of fresh air.

[0392] In some embodiments, a first driving member is disposed within the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so as to open or close the first air inlet. The first driving member includes but is not limited to an electric motor, a motor, a gas rod, or a hydraulic rod.

[0393] In some embodiments, a second fresh air baffle is provided on the volute body 700, and the second fresh air baffle is configured to open or close the first air outlet 720. When the fresh air mode is on, the first fresh air baffle opens the first air inlet, and the second fresh air baffle opens the first air outlet 720. When the fresh air mode is off, the first fresh air baffle closes the first air inlet, and the second fresh air baffle closes the first air outlet 720. Because the first fan 300 and the second fan 400 are simultaneously driven by the first motor 500, the first fan 300 will still rotate within the volute body 700 when the fresh air mode is off. The second fresh air baffle closes the first air outlet 720, creating a closed space within the volute body 700 and reducing noise generated by the airflow.

[0394] In some embodiments, the volute body 700 is provided with a second driving member, which is configured to drive the second fresh air baffle to move so as to open or close the first air outlet 720. The second driving member includes but is not limited to a motor, a pneumatic rod, or a hydraulic rod.

[0395] In some embodiments, a wind deflector is provided at the third air outlet 102, and the wind deflector is configured to close the third air outlet 102. When the wall-mounted air conditioner is not in use, the wind deflector closes the third air outlet 102 to prevent dust from entering the housing 100 and improve the aesthetics and integrity.

[0396] In some embodiments, a third driving member is provided on the housing 100 , and the third driving member is configured to drive the air guide plate to flip, so that the air guide plate opens or closes the third air outlet 102 .

[0397] In some embodiments, the flip angle of the air guide plate is adjusted by a third driving member to guide the airflow output through the third air outlet 102 .

[0398] In some embodiments, the first driving member, the second driving member, the third driving member and the electric control board 610 are electrically connected via lines.

[0399] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane where the electric control board 610 is located.

[0400] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0401] In some embodiments, the electric control box 600 is spaced apart from the volute body 700 to prevent the vibration of the volute body 700 from being transmitted to the electric control box 600, thereby reducing the possibility of vibration of the electric control box 600 and the electric control board 610, thereby increasing the service life of the electric control board 610 in the electric control box 600.

[0402] In some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740, with a first ventilation cavity formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity, and the first air outlet 720 is connected to the first ventilation cavity. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0403] In some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730, forming a second ventilation cavity. The second ventilation cavity communicates with the first ventilation cavity, and the first air inlet communicates with the second ventilation cavity. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity through the first air inlet and then enters the first ventilation cavity. Under the action of the first fan 300, fresh air is output into the room through the first air outlet 720.

[0404] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first and second ventilation cavities. A filter 800 is disposed within the second ventilation cavity, positioned between the first air inlet and the ventilation channel. When the first motor 500 drives the first fan 300, outdoor fresh air enters the second ventilation cavity through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity through the ventilation channel. Under the influence of the first fan 300, the fresh air is output to the interior of the room through the first air outlet 720.

[0405] In some embodiments, the volute body 700 is provided with an insertion passage communicating with the second ventilation cavity, and the insertion passage is configured to allow the filter 800 to be inserted into the second ventilation cavity. The insertion and removal of the filter 800 in the second ventilation cavity is achieved through the insertion passage, facilitating maintenance and replacement of the filter 800.

[0406] The present disclosure also provides a wall-mounted air conditioner, comprising: a housing 100, an indoor heat exchanger 200, a second fan 400, a volute body 700, a first fan 300, an electrical control box 600, and a first motor 500. A first inner cavity and a second inner cavity are provided inside the housing 100 along its length. A second air inlet 101 is provided at the top of the housing 100, and a third air outlet 102 is provided at the bottom of the housing 100.

[0407] The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow. The second fan 400 is disposed in the first inner cavity, and the second fan 400 is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the second air inlet 101, and after being heat exchanged by the indoor heat exchanger 200, is output to the room through the third air outlet 102.

[0408] The volute body 700 is disposed in the second inner cavity and is provided with a first air inlet and a first air outlet 720 ; the first fan 300 is disposed in the volute body 700 ; the first motor 500 is disposed between the volute body 700 and the second fan 400 , and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously;

[0409] The electric control box 600 is arranged in the second inner cavity; an electric control board 610 is arranged in the electric control box 600, and the electric control board 610 is electrically connected to the first motor 500 through a line; the electric control box 600 is arranged on a side of the volute body 700 away from the second air inlet 101.

[0410] With this solution, the electrical control box 600 and the volute body 700 are located on the same side of the second fan 400. Furthermore, the electrical control box 600 is located at the bottom of the volute body 700, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing material usage, production, and processing costs. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, shortening the wiring on the electrical control board 610 connecting to the first motor 500. This improves safety and reduces costs.

[0411] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane where the electric control board 610 is located.

[0412] In some embodiments, the electric control box 600 is disposed below the volute body 700 .

[0413] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0414] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0415] As shown in Figures 101 to 108 , in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger 200, a second fan 400, a volute body 700, a first fan 300, an electrical control box 600, and a first motor 500. The housing 100 is provided with a first inner cavity and a second inner cavity along its length. The housing 100 is provided with a second air inlet 101 at the top. The housing 100 is provided with a front panel 104 on the front side, and the front panel 104 of the housing 100 is provided with a third air outlet.

[0416] The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow. The second fan 400 is disposed in the first inner cavity, and the second fan 400 is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the second air inlet 101, and is output to the room through the third air outlet after being heat exchanged by the indoor heat exchanger 200.

[0417] The volute body 700 is disposed in the second inner cavity, and a first air inlet and a first air outlet 720 are opened on the volute body 700; the first fan 300 is disposed in the volute body 700;

[0418] The first motor 500 is arranged between the volute body 700 and the second fan 400, and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; the electrical control box 600 is arranged in the second inner cavity; an electrical control board 610 is arranged in the electrical control box 600, and the electrical control board 610 is electrically connected to the first motor 500 through a line; the electrical control box 600 is arranged on the side of the volute body 700 close to the third air outlet.

[0419] Through the above solution, the electrical control box 600 and the volute body 700 are arranged on the same side of the second fan 400. The electrical control box 600 is placed on the side of the volute body 700 facing the front of the housing 100, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing the material usage, production, and processing costs of the housing 100. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, allowing the wiring on the electrical control board 610 connecting to the first motor 500 to be shortened, improving safety and saving costs.

[0420] In the prior art, the electric control box 600 and the volute body 700 are respectively arranged at the two ends of the second fan 400. Therefore, the length of the shell 100 is the length of the electric control box 600 plus the length of the volute body 700 plus the length of the second fan 400. In the present disclosure, because the electric control box 600 is arranged on the side of the volute body 700 facing the bottom of the shell 100, the length of the shell 100 is the length of the second fan 400 plus the length of the volute body 700. In addition, in the prior art, the first motor 500 drives the second fan 400 to rotate, and the second fan 400 then drives the first fan 300 to rotate. Its length is relatively long, and the first fan 300 is far away from the first motor 500. Therefore, when rotating, it affects the rotation balance and has poor rotation stability. The first fan 300 then jumps in the volute body 700, and the first fan 300 collides with the volute body 700 to generate noise. In the present disclosure, the first fan 300 and the second fan 400 are closer to the first motor 500 , and the rotation stability of the first fan 300 and the second fan 400 is better, which reduces noise and improves user experience.

[0421] In some embodiments of the present disclosure, the electric control box 600 is disposed on the side of the volute body 700 facing the front panel 104. The electric control box 600 is disposed on the side of the volute body 700 facing the front of the housing 100, and does not occupy space in the length direction of the housing 100, thereby reducing the overall length of the wall-mounted air conditioner. In addition, the length of the housing 100 can be shortened, reducing the material, production, and processing costs of the housing 100. In addition, in this solution, the electric control box 600 is close to the first motor 500, and the line on the electric control board 610 connected to the first motor 500 can be shortened, thereby improving safety and saving costs.

[0422] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0423] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0424] In some embodiments, the thickness direction of the electric control box 600 is perpendicular to the axis of the first fan 300 .

[0425] In some embodiments, the first motor 500 has a single output shaft, with both ends of the output shaft coaxially connected to the first fan 300 and the second fan 400. When the first motor 500 rotates, the output shaft drives the second fan 400 and the first fan 300 to rotate simultaneously.

[0426] In some embodiments, the first motor 500 has two output shafts, namely a first output shaft and a second output shaft. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the first motor 500 is running, the first output shaft and the second output shaft rotate synchronously.

[0427] In some embodiments, the output shaft of the first motor 500 is connected to the first fan 300. The first fan 300 is provided with a transmission assembly, which is connected to the second fan 400. The first motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0428] In some embodiments, the output shaft of the first motor 500 is connected to the second fan 400. The second fan 400 is provided with a transmission assembly, which is connected to the first fan 300. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0429] Referring to Figures 101 to 120 , in some embodiments, the indoor heat exchanger 200 has a pipeline on the side facing the volute body 700, through which refrigerant flows. The first motor 500 is disposed between the second fan 400 and the volute body 700. Because the indoor heat exchanger 200 is located above the second fan 400, the pipeline on the indoor heat exchanger 200 is located above the first motor 500, further saving space and shortening the length of the air conditioner.

[0430] In some embodiments, one side of the housing 100 is mounted on a wall, with the side of the housing 100 facing the front panel 104 in the thickness direction of the housing 100. The electric control box 600 and the volute body 700 are spaced apart along the thickness direction of the housing 100. This prevents vibration of the volute body 700 from being transmitted to the electric control box 600, reduces the possibility of vibration between the electric control box 600 and the electric control board 610, and thereby increases the service life of the electric control board 610 in the electric control box 600.

[0431] In some embodiments, the volute body 700 and the electric control box 600 are both connected to the housing 100 .

[0432] In some embodiments, the electric control box 600 is disposed on a side of the volute body 700 close to the front panel 104 of the housing 100 . The user can open the front panel 104 to directly repair the electric control box 600 , which is convenient for user operation.

[0433] In some embodiments, the electric control box 600 includes a box body 601 and a cover 602 . One side of the box body 601 is open, and the cover 602 is configured to close the opening of the box body 601 to seal the electric control board 610 in the box body 601 .

[0434] In some embodiments, the opening of the box body 601 faces the front side of the housing 100. The user can directly access the electrical box from the front side of the housing 100 for maintenance, which is convenient for user maintenance.

[0435] In some embodiments, the opening of the box body 601 faces the side away from the indoor heat exchanger 200. The user can repair the electrical box from the end of the housing 100 close to the electrical box, which is convenient for user maintenance.

[0436] In some embodiments, the opening of the box body 601 faces the bottom of the housing 100. The user can directly repair the electrical box from the bottom of the housing 100, which reduces the height required for user maintenance and facilitates user maintenance.

[0437] Referring to Figures 101 to 120 , in some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740. A first ventilation cavity 750 is formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity 750, and the first air outlet 720 is in communication with the first ventilation cavity 750. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0438] In some embodiments, the first split housing 730 is disposed on a side of the second split housing 740 close to the first motor 500. The first split housing 730 is provided with an axial hole configured to allow the output shaft of the first motor 500 to pass through.

[0439] In some embodiments, a gap is set between the shaft hole and the output shaft of the first motor 500 .

[0440] In some embodiments, a bearing is disposed within the shaft hole. The bearing comprises an outer ring and an inner ring coaxially disposed within the outer ring. The inner ring is rotatably connected to the outer ring and coaxially sleeved around the output shaft of the first motor 500. The outer ring is coaxially secured within the shaft hole. The bearing ensures that the shaft hole and the output shaft of the first motor 500 are coaxial. This prevents vibrations from the first fan 300 from colliding with the volute body 700 and generating noise when the first motor 500 drives the first fan 300.

[0441] In some embodiments, the first split shell 730 and the second split shell 740 are spliced ​​together. The connection between the first split shell 730 and the second split shell 740 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0442] Referring to Figures 101 to 120, in some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730 to form a second ventilation cavity 760. The second ventilation cavity 760 is connected to the first ventilation cavity 750, and the first air inlet is connected to the second ventilation cavity 760. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet and then enters the first ventilation cavity 750. Under the action of the first fan 300, it is output into the room through the first air outlet 720.

[0443] In some embodiments, the first half shell 741 and the second half shell 742 are spliced ​​together. The connection between the first half shell 741 and the second half shell 742 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0444] In some embodiments, a first ventilation cavity 750 is formed between the first split shell 730 and the second half shell 742 .

[0445] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first ventilation cavity 750 with the second ventilation cavity 760. A filter 800 is disposed within the second ventilation cavity 760, positioned between the first air inlet and the ventilation channel. When the motor drives the first fan 300, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity 750 through the ventilation channel. Under the action of the first fan 300, the fresh air is output to the indoor space through the first air outlet 720.

[0446] In some embodiments, the first split shell 730 , the second half shell 742 , and the first half shell 741 are distributed along the axial direction of the second fan 400 .

[0447] In some embodiments, the ventilation channel is opened in the same direction as the axial direction of the first fan 300 , and the ventilation channel passes through the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760 .

[0448] 101 to 120 , in some embodiments, the filter 800 includes a frame and a filter sheet, the filter sheet being disposed within the frame and being detachably connected to the frame. When the filter 800 needs to be replaced, the filter sheet can be replaced separately, saving costs.

[0449] In some embodiments, the side of the filter 800 facing away from the second half-shell 742 is the windward side, and the axis of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 covers a ventilation channel, and the fresh air in the second ventilation cavity 760 must pass through the filter 800 before entering the first ventilation cavity 750 through the ventilation channel. This ensures that the outdoor fresh air is filtered and purified by the filter 800, improving the user experience.

[0450] In some embodiments, the volute body 700 is provided with an insertion channel that communicates with the second ventilation cavity 760. The insertion channel is configured to allow the filter 800 to be inserted into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the insertion channel, facilitating maintenance and replacement of the filter 800.

[0451] In some embodiments, the insertion channel is opened on the first half shell 741 and / or the second half shell 742 .

[0452] In some embodiments, the plug-in channel is opened on a side of the volute body 700 facing the front panel 104 of the housing 100 ; or; the plug-in channel is opened on a side of the volute body 700 facing the top of the housing 100 .

[0453] In some embodiments, a ventilation pipe 900 is provided on the housing 100 , and the ventilation pipe 900 is connected to the first air inlet, so that outdoor fresh air enters the second ventilation cavity 760 in the ventilation housing 100 through the ventilation pipe 900 .

[0454] In some embodiments, a first fresh air damper is disposed within the volute body 700 and is configured to open or close the first air inlet. When the fresh air mode is on, the first fresh air damper opens the first air inlet; when the fresh air mode is off, the first fresh air damper closes the first air inlet, preventing the input of fresh air.

[0455] In some embodiments, a first driving member is disposed within the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so as to open or close the first air inlet. The first driving member includes but is not limited to an electric motor, a motor, a gas rod, or a hydraulic rod.

[0456] In some embodiments, a second fresh air baffle is provided on the volute body 700, and the second fresh air baffle is configured to open or close the first air outlet 720. When the fresh air mode is on, the first fresh air baffle opens the first air inlet, and the second fresh air baffle opens the first air outlet 720. When the fresh air mode is off, the first fresh air baffle closes the first air inlet, and the second fresh air baffle closes the first air outlet 720. Because the first fan 300 and the second fan 400 are simultaneously driven by the first motor 500, the first fan 300 will still rotate within the volute body 700 when the fresh air mode is off. The second fresh air baffle closes the first air outlet 720, creating a closed space within the volute body 700 and reducing noise generated by the airflow.

[0457] In some embodiments, the volute body 700 is provided with a second driving member, which is configured to drive the second fresh air baffle to move so as to open or close the first air outlet 720. The second driving member includes but is not limited to a motor, a pneumatic rod, or a hydraulic rod.

[0458] In some embodiments, a wind deflector is provided at the third air outlet, and the wind deflector is configured to close the third air outlet. When the wall-mounted air conditioner is not in use, the wind deflector closes the third air outlet to prevent dust from entering the interior of the housing 100 and improve the aesthetics and integrity.

[0459] In some embodiments, a third driving member is provided on the housing 100 , and the third driving member is configured to drive the air guide plate to flip, so that the air guide plate opens or closes the third air outlet.

[0460] In some embodiments, the flip angle of the air guide plate is adjusted by a third driving member to guide the airflow output through the third air outlet.

[0461] In some embodiments, the first driving member, the second driving member, the third driving member and the electric control board 610 are electrically connected via lines.

[0462] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane where the electric control board 610 is located.

[0463] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0464] In some embodiments, the electric control box 600 is spaced apart from the volute body 700 to prevent the vibration of the volute body 700 from being transmitted to the electric control box 600, thereby reducing the possibility of vibration of the electric control box 600 and the electric control board 610, thereby increasing the service life of the electric control board 610 in the electric control box 600.

[0465] In some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740, with a first ventilation cavity 750 formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity 750, and the first air outlet 720 is connected to the first ventilation cavity 750. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0466] Referring to Figures 101 to 120, in some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730 to form a second ventilation cavity 760. The second ventilation cavity 760 is connected to the first ventilation cavity 750, and the first air inlet is connected to the second ventilation cavity 760. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet and then enters the first ventilation cavity 750. Under the action of the first fan 300, it is output into the room through the first air outlet 720.

[0467] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first ventilation cavity 750 with the second ventilation cavity 760. A filter 800 is disposed within the second ventilation cavity 760, positioned between the first air inlet and the ventilation channel. When the first motor 500 drives the first fan 300, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity 750 through the ventilation channel. Under the action of the first fan 300, the fresh air is output to the indoor space through the first air outlet 720.

[0468] In some embodiments, the volute body 700 is provided with an insertion channel that communicates with the second ventilation cavity 760. The insertion channel is configured to allow the filter 800 to be inserted into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the insertion channel, facilitating maintenance and replacement of the filter 800.

[0469] 101 to 120 , the present disclosure further provides a wall-mounted air conditioner, which includes: a housing 100 , an indoor heat exchanger 200 , a second fan 400 , a volute body 700 , a first fan 300 , an electric control box 600 , a base, and a first motor 500 .

[0470] The housing 100 has a first inner cavity and a second inner cavity along its length. The top of the housing 100 has a second air inlet 101, and the bottom of the housing 100 has a third air outlet. The front side of the housing 100 has a front panel 104. The base is disposed within the housing 100 and is close to the rear side of the housing 100, and is away from the front panel 104. The indoor heat exchanger 200 is disposed within the first inner cavity and exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow.

[0471] The second fan 400 is disposed in the first inner cavity and below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor air flow enters the housing 100 through the second air inlet 101, and is output to the indoor space through the third air outlet after being heat exchanged by the indoor heat exchanger 200. The volute body 700 is disposed in the second inner cavity and is provided with a first air inlet and a first air outlet 720. The first fan 300 is disposed in the volute body 700. The first motor 500 is disposed between the volute body 700 and the second fan 400, and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0472] The electric control box 600 is arranged in the second inner cavity; an electric control board 610 is arranged in the electric control box 600, and the electric control board 610 is electrically connected to the first motor 500 through a line; the electric control box 600 is arranged on a side of the volute body 700 away from the base.

[0473] Through the above solution, the electrical control box 600 and the volute body 700 are arranged on the same side of the second fan 400. The electrical control box 600 is placed on the side of the volute body 700 facing the front of the housing 100, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing the material usage, production, and processing costs of the housing 100. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, allowing the wiring on the electrical control board 610 connecting to the first motor 500 to be shortened, improving safety and saving costs.

[0474] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane where the electric control board 610 is located.

[0475] In some embodiments, the electric control box 600 is disposed below the volute body 700 .

[0476] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0477] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0478] As shown in Figures 121 to 138 , in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner includes: a housing 100, an indoor heat exchanger 200, a second fan 400, a volute body 700, a first fan 300, an electrical control box 600, and a first motor 500. The housing 100 is provided with a first inner cavity and a second inner cavity along its length. The housing 100 has a second air inlet 101 formed at the top. The housing 100 has a front panel 104 formed on the front side thereof, and a third air outlet formed on the front panel 104.

[0479] The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow. The second fan 400 is disposed in the first inner cavity, and the second fan 400 is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor airflow enters the housing 100 through the second air inlet 101, and is output to the room through the third air outlet after being heat exchanged by the indoor heat exchanger 200.

[0480] The volute body 700 is disposed in the second inner cavity, and a first air inlet and a first air outlet 720 are opened on the volute body 700; the first fan 300 is disposed in the volute body 700;

[0481] The first motor 500 is arranged between the volute body 700 and the second fan 400, and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; the electrical control box 600 is arranged in the second inner cavity; an electrical control board 610 is arranged in the electrical control box 600, and the electrical control board 610 is electrically connected to the first motor 500 through a line; the electrical control box 600 is arranged on the side of the volute body 700 away from the third air outlet.

[0482] Through the above solution, the electrical control box 600 and the volute body 700 are arranged on the same side of the second fan 400. The electrical control box 600 is placed on the side of the volute body 700 facing the rear of the housing 100, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing the material usage, production, and processing costs of the housing 100. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, allowing the wiring on the electrical control board 610 connecting to the first motor 500 to be shortened, improving safety and saving costs.

[0483] In the prior art, the electric control box 600 and the volute body 700 are respectively arranged at the two ends of the second fan 400. Therefore, the length of the shell 100 is the length of the electric control box 600 plus the length of the volute body 700 plus the length of the second fan 400. In the present disclosure, because the electric control box 600 is arranged on the side of the volute body 700 facing the bottom of the shell 100, the length of the shell 100 is the length of the second fan 400 plus the length of the volute body 700. In addition, in the prior art, the first motor 500 drives the second fan 400 to rotate, and the second fan 400 then drives the first fan 300 to rotate. Its length is relatively long, and the first fan 300 is far away from the first motor 500. Therefore, when rotating, it affects the rotation balance and has poor rotation stability. The first fan 300 then jumps in the volute body 700, and the first fan 300 collides with the volute body 700 to generate noise. In the present disclosure, the first fan 300 and the second fan 400 are closer to the first motor 500 , and the rotation stability of the first fan 300 and the second fan 400 is better, which reduces noise and improves user experience.

[0484] In some embodiments of the present disclosure, the electric control box 600 is disposed on the side of the volute body 700 facing the front panel 104. The electric control box 600 is disposed on the side of the volute body 700 facing the rear of the housing 100, and does not occupy space in the length direction of the housing 100, thereby reducing the overall length of the wall-mounted air conditioner. In addition, the length of the housing 100 can be shortened, reducing the material, production, and processing costs of the housing 100. In addition, in this solution, the electric control box 600 is close to the first motor 500, and the line on the electric control board 610 connected to the first motor 500 can be shortened, thereby improving safety and saving costs.

[0485] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0486] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0487] In some embodiments, the thickness direction of the electric control box 600 is perpendicular to the axis of the first fan 300 .

[0488] In some embodiments, the first motor 500 has a single output shaft, with both ends of the output shaft coaxially connected to the first fan 300 and the second fan 400. When the first motor 500 rotates, the output shaft drives the second fan 400 and the first fan 300 to rotate simultaneously.

[0489] In some embodiments, the first motor 500 has two output shafts, namely a first output shaft and a second output shaft. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the first motor 500 is running, the first output shaft and the second output shaft rotate synchronously.

[0490] In some embodiments, the output shaft of the first motor 500 is connected to the first fan 300. The first fan 300 is provided with a transmission assembly, which is connected to the second fan 400. The first motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0491] In some embodiments, the output shaft of the first motor 500 is connected to the second fan 400. The second fan 400 is provided with a transmission assembly, which is connected to the first fan 300. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0492] Referring to Figures 121 to 138 , in some embodiments, the indoor heat exchanger 200 has a pipeline on the side facing the volute body 700, through which refrigerant flows. The first motor 500 is disposed between the second fan 400 and the volute body 700. Because the indoor heat exchanger 200 is located above the second fan 400, the pipeline on the indoor heat exchanger 200 is located above the first motor 500, further saving space and shortening the length of the air conditioner.

[0493] In some embodiments, the volute body 700 is disposed on a side of the electric control box 600 facing the front panel 104. When the volute body 700 is repaired, the front panel 104 can be directly opened to repair the volute body 700, which is convenient for manual operation.

[0494] In some embodiments, one side of the housing 100 is mounted on a wall, with the side of the housing 100 facing the front panel 104 in the thickness direction of the housing 100. The electric control box 600 and the volute body 700 are spaced apart along the thickness direction of the housing 100. This prevents vibration of the volute body 700 from being transmitted to the electric control box 600, reduces the possibility of vibration between the electric control box 600 and the electric control board 610, and thereby increases the service life of the electric control board 610 in the electric control box 600.

[0495] In some embodiments, the volute body 700 and the electric control box 600 are both connected to the housing 100 .

[0496] In some embodiments, the electric control box 600 is disposed on a side of the volute body 700 close to the front panel 104 of the housing 100 . The user can open the front panel 104 to directly repair the electric control box 600 , which is convenient for user operation.

[0497] In some embodiments, the electric control box 600 includes a box body 601 and a cover 602 . One side of the box body 601 is open, and the cover 602 is configured to close the opening of the box body 601 to seal the electric control board 610 in the box body 601 .

[0498] In some embodiments, the opening of the box body 601 faces the side away from the indoor heat exchanger 200. The user can repair the electrical box from the end of the housing 100 close to the electrical box, which is convenient for user maintenance.

[0499] In some embodiments, the opening of the box body 601 faces the bottom of the housing 100. The user can directly repair the electrical box from the bottom of the housing 100, which reduces the height required for user maintenance and facilitates user maintenance.

[0500] Referring to Figures 121 to 138 , in some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740. A first ventilation cavity 750 is formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity 750, and the first air outlet 720 is in communication with the first ventilation cavity 750. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0501] In some embodiments, the first split housing 730 is disposed on a side of the second split housing 740 close to the first motor 500. The first split housing 730 is provided with an axial hole configured to allow the output shaft of the first motor 500 to pass through.

[0502] In some embodiments, a gap is set between the shaft hole and the output shaft of the first motor 500 .

[0503] In some embodiments, a bearing is disposed within the shaft hole. The bearing comprises an outer ring and an inner ring coaxially disposed within the outer ring. The inner ring is rotatably connected to the outer ring and coaxially sleeved around the output shaft of the first motor 500. The outer ring is coaxially secured within the shaft hole. The bearing ensures that the shaft hole and the output shaft of the first motor 500 are coaxial. This prevents vibrations from the first fan 300 from colliding with the volute body 700 and generating noise when the first motor 500 drives the first fan 300.

[0504] In some embodiments, the first split shell 730 and the second split shell 740 are spliced ​​together. The connection between the first split shell 730 and the second split shell 740 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0505] Referring to Figures 121 to 138, in some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730 to form a second ventilation cavity 760. The second ventilation cavity 760 is connected to the first ventilation cavity 750, and the first air inlet is connected to the second ventilation cavity 760. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet and then enters the first ventilation cavity 750. Under the action of the first fan 300, it is output into the room through the first air outlet 720.

[0506] In some embodiments, the first half shell 741 and the second half shell 742 are spliced ​​together. The connection between the first half shell 741 and the second half shell 742 also includes, but is not limited to, snap connection, screw connection, bonding, welding, riveting, etc.

[0507] In some embodiments, a first ventilation cavity 750 is formed between the first split shell 730 and the second half shell 742 .

[0508] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first ventilation cavity 750 with the second ventilation cavity 760. A filter 800 is disposed within the second ventilation cavity 760, positioned between the first air inlet and the ventilation channel. When the motor drives the first fan 300, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity 750 through the ventilation channel. Under the action of the first fan 300, the fresh air is output to the indoor space through the first air outlet 720.

[0509] In some embodiments, the first split shell 730 , the second half shell 742 , and the first half shell 741 are distributed along the axial direction of the second fan 400 .

[0510] In some embodiments, the ventilation channel is opened in the same direction as the axial direction of the first fan 300 , and the ventilation channel passes through the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760 .

[0511] 121 to 138 , in some embodiments, the filter 800 includes a frame and a filter sheet, the filter sheet being disposed within the frame and being detachably connected to the frame. When the filter 800 needs to be replaced, the filter sheet can be replaced separately, saving costs.

[0512] In some embodiments, the side of the filter 800 facing away from the second half-shell 742 is the windward side, and the axis of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 covers a ventilation channel, and the fresh air in the second ventilation cavity 760 must pass through the filter 800 before entering the first ventilation cavity 750 through the ventilation channel. This ensures that the outdoor fresh air is filtered and purified by the filter 800, improving the user experience.

[0513] In some embodiments, the volute body 700 is provided with an insertion channel that communicates with the second ventilation cavity 760. The insertion channel is configured to allow the filter 800 to be inserted into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the insertion channel, facilitating maintenance and replacement of the filter 800.

[0514] In some embodiments, the insertion channel is opened on the first half shell 741 and / or the second half shell 742 .

[0515] In some embodiments, the plug-in channel is opened on a side of the volute body 700 facing the front panel 104 of the housing 100 ; or; the plug-in channel is opened on a side of the volute body 700 facing the top of the housing 100 .

[0516] In some embodiments, a ventilation pipe 900 is provided on the housing 100 , and the ventilation pipe 900 is connected to the first air inlet, so that outdoor fresh air enters the second ventilation cavity 760 in the ventilation housing 100 through the ventilation pipe 900 .

[0517] In some embodiments, a first fresh air damper is disposed within the volute body 700 and is configured to open or close the first air inlet. When the fresh air mode is on, the first fresh air damper opens the first air inlet; when the fresh air mode is off, the first fresh air damper closes the first air inlet, preventing the input of fresh air.

[0518] In some embodiments, a first driving member is disposed within the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so as to open or close the first air inlet. The first driving member includes but is not limited to an electric motor, a motor, a gas rod, or a hydraulic rod.

[0519] In some embodiments, a second fresh air baffle is provided on the volute body 700, and the second fresh air baffle is configured to open or close the first air outlet 720. When the fresh air mode is on, the first fresh air baffle opens the first air inlet, and the second fresh air baffle opens the first air outlet 720. When the fresh air mode is off, the first fresh air baffle closes the first air inlet, and the second fresh air baffle closes the first air outlet 720. Because the first fan 300 and the second fan 400 are simultaneously driven by the first motor 500, the first fan 300 will still rotate within the volute body 700 when the fresh air mode is off. The second fresh air baffle closes the first air outlet 720, creating a closed space within the volute body 700 and reducing noise generated by the airflow.

[0520] In some embodiments, the volute body 700 is provided with a second driving member, which is configured to drive the second fresh air baffle to move so as to open or close the first air outlet 720. The second driving member includes but is not limited to a motor, a pneumatic rod, or a hydraulic rod.

[0521] In some embodiments, a wind deflector is provided at the third air outlet, and the wind deflector is configured to close the third air outlet. When the wall-mounted air conditioner is not in use, the wind deflector closes the third air outlet to prevent dust from entering the interior of the housing 100 and improve the aesthetics and integrity.

[0522] In some embodiments, a third driving member is provided on the housing 100 , and the third driving member is configured to drive the air guide plate to flip, so that the air guide plate opens or closes the third air outlet.

[0523] In some embodiments, the flip angle of the air guide plate is adjusted by a third driving member to guide the airflow output through the third air outlet.

[0524] In some embodiments, the first driving member, the second driving member, the third driving member and the electric control board 610 are electrically connected via lines.

[0525] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane where the electric control board 610 is located.

[0526] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the side of the electric control board 610 facing the volute body 700 .

[0527] In some embodiments, the electric control box 600 is spaced apart from the volute body 700 to prevent the vibration of the volute body 700 from being transmitted to the electric control box 600, thereby reducing the possibility of vibration of the electric control box 600 and the electric control board 610, thereby increasing the service life of the electric control board 610 in the electric control box 600.

[0528] In some embodiments, the volute body 700 includes a first split housing 730 and a second split housing 740, with a first ventilation cavity 750 formed between the first split housing 730 and the second split housing 740. The first fan 300 is disposed within the first ventilation cavity 750, and the first air outlet 720 is connected to the first ventilation cavity 750. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 outputs outdoor fresh air into the room through the first air outlet 720.

[0529] Referring to Figures 121 to 138, in some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is located between the first half housing 741 and the first split housing 730 to form a second ventilation cavity 760. The second ventilation cavity 760 is connected to the first ventilation cavity 750, and the first air inlet is connected to the second ventilation cavity 760. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet and then enters the first ventilation cavity 750. Under the action of the first fan 300, it is output into the room through the first air outlet 720.

[0530] In some embodiments, a ventilation channel is defined in the second half shell 742 to connect the first ventilation cavity 750 with the second ventilation cavity 760. A filter 800 is disposed within the second ventilation cavity 760, positioned between the first air inlet and the ventilation channel. When the first motor 500 drives the first fan 300, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet. The fresh air then passes through the filter 800, filtered by the filter 800, and then enters the first ventilation cavity 750 through the ventilation channel. Under the action of the first fan 300, the fresh air is output to the indoor space through the first air outlet 720.

[0531] In some embodiments, the volute body 700 is provided with an insertion channel that communicates with the second ventilation cavity 760. The insertion channel is configured to allow the filter 800 to be inserted into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the insertion channel, facilitating maintenance and replacement of the filter 800.

[0532] 121 to 138 , the present disclosure further provides a wall-mounted air conditioner, which includes: a housing 100 , an indoor heat exchanger 200 , a second fan 400 , a volute body 700 , a first fan 300 , an electric control box 600 , a base, and a first motor 500 .

[0533] The housing 100 has a first inner cavity and a second inner cavity along its length. The top of the housing 100 has a second air inlet 101, and the bottom of the housing 100 has a third air outlet. The front side of the housing 100 has a front panel 104. The base is disposed within the housing 100 and is close to the rear side of the housing 100, and is away from the front panel 104. The indoor heat exchanger 200 is disposed within the first inner cavity and exchanges heat with the air passing through the indoor heat exchanger 200 to form a heat exchange airflow.

[0534] The second fan 400 is disposed in the first inner cavity and is disposed below the indoor heat exchanger 200. Under the action of the second fan 400, the indoor air flow enters the housing 100 through the second air inlet 101, is heat-exchanged by the indoor heat exchanger 200, and is output to the indoor space through the third air outlet. The volute body 700 is disposed in the second inner cavity and is provided with a first air inlet and a first air outlet 720. The first fan 300 is disposed in the volute body 700. The first motor 500 is disposed between the volute body 700 and the second fan 400, and the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously.

[0535] The electric control box 600 is arranged in the second inner cavity; an electric control board 610 is arranged in the electric control box 600, and the electric control board 610 is electrically connected to the first motor 500 through a line; the electric control box 600 is arranged on a side of the volute body 700 close to the base.

[0536] Through the above solution, the electrical control box 600 and the volute body 700 are arranged on the same side of the second fan 400. The electrical control box 600 is placed on the side of the volute body 700 facing the rear of the housing 100, eliminating the need for space along the length of the housing 100 and reducing the overall length of the wall-mounted air conditioner. Furthermore, the length of the housing 100 can be shortened, reducing the material usage, production, and processing costs of the housing 100. Furthermore, in this solution, the electrical control box 600 is located close to the first motor 500, allowing the wiring on the electrical control board 610 connecting to the first motor 500 to be shortened, improving safety and saving costs.

[0537] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane where the electric control board 610 is located.

[0538] In some embodiments, the electric control box 600 is disposed below the volute body 700 .

[0539] In some embodiments, the axis of the output shaft of the first motor 500 is parallel to the plane on which the electric control board 610 is located; the thickness of the electric control board 610 is aligned with the thickness of the electric control box 600. Because the electric control box 600 is relatively thin in thickness, this arrangement aligns the thickness of the electric control box 600 with the height of the housing 100. This reduces space usage, allowing the volute body 700 to be designed larger, and the size of the first fan 300 to be correspondingly larger, thereby increasing the fresh air output.

[0540] In some embodiments, an axis of the output shaft of the first motor is parallel to a side of the electric control board facing the volute body.

[0541] As shown in Figures 139 to 151 , in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, 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, and a first motor 500. A first inner cavity and a second inner cavity are provided within the housing 100 along its length. A second air inlet 101 is provided at the top of the housing 100, and a third air outlet 102 is provided at the front bottom of the housing 100. The indoor heat exchanger is provided within the first inner cavity, and the indoor heat exchanger exchanges heat with air passing through the indoor heat exchanger to form a heat exchange airflow.

[0542] The second fan 400 is disposed in the first inner cavity and below the indoor heat exchanger. The indoor airflow enters the housing 100 through the second air inlet 101 under the action of the second fan 400, and is output to the room through the third air outlet 102 after being heated by the indoor heat exchanger.

[0543] The volute body 700 is disposed in the second inner cavity; the first fan 300 is disposed in the volute body 700; the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously;

[0544] Among them, the volute body 700 includes a first split shell 730 and a second split shell 740, and the second split shell 740 is provided with a first flange 170 and a positioning piece 190; the first flange 170 is configured to guide the first split shell 730; the first split shell 730 is provided with a positioning portion 230 configured to cooperate with the positioning piece 190.

[0545] Through the above scheme, the first split shell 730 is guided by the first flange 170 to facilitate the connection between the first split shell 730 and the second split shell 740, and the relative position between the first split shell 730 and the second split shell 740 is ensured by the cooperation of the positioning member 190 and the positioning portion 230 to ensure the connection stability between the first split shell 730 and the second split shell 740, and improve the airtightness between the second split shell 740 and the first split shell 730, reduce air leakage, and improve user experience; and facilitate manual assembly and improve assembly efficiency.

[0546] In some embodiments, the second split housing 740 includes a first half housing 741 and a second half housing 742. The second half housing 742 is disposed on the side of the first half housing 741 facing the second fan 400. The first flange 170 is disposed on the side of the second half housing 742 away from the first half housing 741. The first split housing 730 is configured to connect to the second half housing 742. The first half housing 741 and the second half housing 742 are spliced ​​together, and then the first split housing 730 and the second half housing 742 are spliced ​​together to form the volute body 700, which facilitates manual assembly and improves work efficiency.

[0547] In some embodiments, a first air outlet 720 and a first air inlet are provided on the volute body 700. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 drives outdoor fresh air into the volute body 700 through the air inlet and outputs it to the room through the first air outlet 720.

[0548] In some embodiments, the first split housing 730 is disposed on a side of the second split housing 740 facing the second fan 400 .

[0549] In some embodiments, the first air outlet 720 is opened at the top of the volute body 700. After being output, the outdoor fresh air will be sucked into the second air inlet 101 and heated by the indoor heat exchanger before being output.

[0550] In some embodiments, the first flange 170 is disposed on an edge of the second split shell 740 facing the first split shell 730 , specifically, on a side of the second half shell 742 facing the second fan 400 .

[0551] In some embodiments, the second half shell 742 has an air outlet section, which is part of the first air outlet 720. A first flange 170 is provided at the air outlet section, and the length of the air outlet section aligns with the air outlet direction of the first air outlet 720. When installing the first split shell 730, the first split shell 730 is attached to the first flange 170 and moved along the length of the first flange 170 to join the first split shell 730 with the second half shell 742.

[0552] In some embodiments, the first flange 170 is perpendicular to the side of the second half shell 742 facing the second fan 400. When installing the first split shell 730, the side of the first split shell 730 corresponding to the first flange 170 is placed against the first flange 170, and the first split shell 730 is pushed from the side away from the second fan 400 toward the second half shell 742 to achieve the connection between the first split shell 730 and the second half shell 742.

[0553] In some embodiments, the edge of the second half shell 742 that is not provided with the first flange 170 is provided with a second flange 180 , and the second flange 180 is mainly configured to overlap with the edge of the first split shell 730 to achieve sealing and improve the sealing performance of the volute body 700 .

[0554] In some embodiments, the second split shell 740 further includes a third half shell 743, which is disposed on a side of the second half shell 742 away from the first half shell 741. The first split shell 730 is configured to connect with the second half shell 742 and the third half shell 743. A positioning member 190 is disposed on the third half shell 743. The first half shell 741, the second half shell 742, and the third half shell 743 are first connected. When installing the first split shell 730, the first split shell 730 is guided by the first flange 170 on the second half shell 742. The positioning portion 230 on the first split shell 730 cooperates with the positioning member 190 on the third half shell 743 to complete the installation of the first split shell 730 and the second split shell 740. This facilitates manual operation and improves the sealing performance of the volute body 700.

[0555] In some embodiments, the third half shell 743 is located on the side of the second half shell 742 facing the second fan 400, and the third half shell 743 is away from the first air outlet 720, that is, away from the air outlet section. When installing the first split shell 730, the first split shell 730 is attached to the first flange 170 and moved along the length of the first flange 170 to approach the third half shell 743. The positioning portion 230 on the first split shell 730 cooperates with the positioning member 190 on the third half shell 743, completing the installation of the first split shell 730 and the second split shell 740.

[0556] In some embodiments, the positioning member 190 is a positioning post, and the length of the positioning member 190 is the same as the length of the first flange 170. The positioning portion 230 is a positioning hole, which is provided on the side of the first split shell 730 facing the third half shell 743. The positioning post is inserted into the positioning hole to achieve positioning and connection between the first split shell 730 and the second split shell 740.

[0557] In some embodiments, the diameter of the end of the positioning post away from the third half shell 743 gradually decreases to facilitate the insertion of the positioning post into the positioning hole and facilitate operation.

[0558] In some embodiments, a buckle is provided on the third half shell 743 , which is configured to be snap-fitted with the first split shell 730 to achieve the connection between the third half shell 743 and the first split shell 730 .

[0559] In some embodiments, the first motor 500 has a single output shaft, with both ends of the output shaft coaxially connected to the first fan 300 and the second fan 400. When the first motor 500 rotates, the output shaft drives the second fan 400 and the first fan 300 to rotate simultaneously.

[0560] In some embodiments, the first motor 500 has two output shafts, namely a first output shaft and a second output shaft. The first output shaft is coaxially connected to the second fan 400, and the second output shaft is coaxially connected to the first fan 300. When the first motor 500 is running, the first output shaft and the second output shaft rotate synchronously.

[0561] In some embodiments, the output shaft of the first motor 500 is connected to the first fan 300. The first fan 300 is provided with a transmission assembly, which is connected to the second fan 400. The first motor 500 drives the first fan 300 to rotate, and the first fan 300 drives the second fan 400 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0562] In some embodiments, the output shaft of the first motor 500 is connected to the second fan 400. The second fan 400 is provided with a transmission assembly, which is connected to the first fan 300. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously via the transmission assembly, thereby achieving a single first motor 500 driving the first fan 300 and the second fan 400 to rotate synchronously.

[0563] In some embodiments, the output shaft of the first motor 500 is connected to the second fan 400 . The second fan 400 is provided with a connecting shaft at one end facing the first fan 300 . The connecting shaft passes through the volute body 700 and is connected to the first fan 300 .

[0564] In some embodiments, a first mounting portion is defined on the first split housing 730, and a second mounting portion is defined on the third half housing 743. The first split housing 730 and the third half housing 743 are connected, and the first mounting portion and the second mounting portion are joined to form the shaft hole 210. During installation, the first split housing 730 and the second split housing 740 are directly sleeved onto the output shaft or connecting shaft of the first motor 500; thus, the diameter of the shaft hole 210 can be reduced, reducing the possibility of air leakage through the shaft hole 210 and improving sealing.

[0565] In the prior art, the output shaft or connecting shaft of the first motor 500 needs to be connected to the first fan 300. To avoid restricting the position of the first fan 300 and preventing the first fan 300 from contacting the volute body 700 and generating noise, a stopper is installed on the output shaft or connecting shaft of the first motor 500. This stopper is often a collar. However, in the prior art, the first half shell 730 and the third half shell 743 of the volute body 700 are integrally formed and directly define the axial hole 210. Due to process limitations, the stopper requires special equipment to be installed on the connecting shaft or output shaft. If the connecting shaft or output shaft is passed through the axial hole 210 first, the equipment used to install the stopper will interfere with the volute body 700, preventing the stopper from being installed. Therefore, the stopper must be installed before the connecting shaft or output shaft passes through the axial hole 210. Therefore, the diameter of the axial hole 210 must be larger than the diameter of the stopper. This creates a large gap between the axial hole 210 and the connecting shaft or output shaft, leading to air leakage and poor sealing of the volute body 700.

[0566] In the present disclosure, however, the first split housing 730 and the third half housing 743 can be directly connected by aligning the first mounting portion and the second mounting portion with the connecting shaft or output shaft. The first split housing 730 and the third half housing 743 are then spliced ​​together so that the shaft hole 210 is directly sleeved onto the connecting shaft or output shaft. The stopper does not need to pass through the shaft hole 210, so the diameter of the shaft hole 210 can be set smaller than the outer diameter of the stopper, thereby reducing the gap between the shaft hole 210 and the connecting shaft or output shaft and improving the sealing performance of the volute body 700.

[0567] In some embodiments, the first motor 500 is disposed between the second fan 400 and the first fan 300, and the output shaft of the first motor 500 is connected to the first fan 300 through the shaft hole 210. The output shaft of the first motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously, reducing the vibration of the second fan 400 and the first fan 300 during rotation.

[0568] In some embodiments, the first motor 500 is disposed at an end of the second fan 400 away from the first fan 300 . The second fan 400 is connected to the first fan 300 via a connecting shaft, and the connecting shaft passes through the shaft hole 210 .

[0569] In some embodiments, a first ventilation cavity is formed between the first split housing 730, the second half housing 742, and the first half housing 741. The first fan 300 is disposed within the first ventilation cavity. A second ventilation cavity is formed between the second half housing 742 and the first half housing 741. A ventilation channel is defined in the second half housing 742 to connect the first and second ventilation cavities. When the first motor 500 drives the first fan 300 to rotate, the first fan 300 draws outdoor air into the second ventilation cavity. Fresh air then flows through the ventilation channel into the first ventilation cavity and is then output to the indoor space.

[0570] In some embodiments, a filter 800 is disposed within the second ventilation cavity, and the filter 800 covers a ventilation channel. When the first motor 500 drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity, passes through the filter 800, is filtered by the filter 800, and then enters the first ventilation cavity through the ventilation channel. The first fan 300 then outputs the fresh air to the indoor room.

[0571] In some embodiments, the volute body 700 is provided with an insertion passage communicating with the second ventilation cavity, and the insertion passage is configured to allow the filter 800 to be inserted into the second ventilation cavity. The insertion and removal of the filter 800 in the second ventilation cavity is achieved through the insertion passage, facilitating maintenance and replacement of the filter 800.

[0572] In some embodiments, the filter screen 800 includes a frame and a filter screen, wherein the filter screen is disposed within the frame and is detachably connected to the frame. When the filter screen 800 needs to be replaced, the filter screen can be replaced separately, thereby saving costs.

[0573] In some embodiments, the side of the filter 800 facing away from the second half-shell 742 is the windward side, and the axis of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 covers a ventilation channel, and the fresh air in the second ventilation cavity must pass through the filter 800 before entering the first ventilation cavity through the ventilation channel. This ensures that the outdoor fresh air is filtered and purified by the filter 800, improving the user experience.

[0574] The present disclosure also provides a wall-mounted air conditioner, comprising: a housing 100, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300, and a first motor 500. A first inner cavity and a second inner cavity are provided inside the housing 100 along its length; a second air inlet 101 is provided at the top of the housing 100, and a third air outlet 102 is provided at the front bottom of the housing 100; the indoor heat exchanger is provided in the first inner cavity, and the indoor heat exchanger exchanges heat with air passing through the indoor heat exchanger to form a heat exchange airflow;

[0575] The second fan 400 is disposed in the first inner cavity and below the indoor heat exchanger. The indoor airflow enters the housing 100 through the second air inlet 101 under the action of the second fan 400, and is output to the room through the third air outlet 102 after being heated by the indoor heat exchanger.

[0576] The volute body 700 is disposed in the second inner cavity; the first fan 300 is disposed in the volute body 700; the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously;

[0577] Among them, the volute body 700 includes a first split shell 730 and a second split shell 740, and the second split shell 740 is provided with a guide member and a positioning member 190; the guide member is configured to guide the first split shell 730; the first split shell 730 is provided with a positioning part 230 configured to cooperate with the positioning member 190.

[0578] In the technical solution, the first split shell 730 is guided by a guide member to facilitate the connection between the first split shell 730 and the second split shell 740, and the relative position between the first split shell 730 and the second split shell 740 is ensured by the cooperation of the positioning member 190 and the positioning portion 230 to ensure the connection stability between the first split shell 730 and the second split shell 740, and improve the airtightness between the second split shell 740 and the first split shell 730, reduce air leakage, and improve user experience; and facilitate manual assembly and improve assembly efficiency.

[0579] In some embodiments, the guide member is a first flange 170 .

[0580] Those skilled in the art will understand that the scope of the present disclosure is not limited to the above specific embodiments, and that certain elements of the embodiments may be modified and replaced without departing from the spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.

Claims

1. An air conditioner, comprising: A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the length direction; an air return port is opened at the top of the shell, and an air outlet is opened at the bottom of the front side of the shell; An indoor heat exchanger, the indoor heat exchanger being disposed in the first inner cavity, and the indoor heat exchanger exchanging heat with the air passing through the indoor heat exchanger to form a heat exchange airflow; a second fan, the second fan being arranged in the first inner cavity and being located below the indoor heat exchanger; the indoor airflow enters the first inner cavity through the return air port and is output from the air outlet after being heat exchanged by the indoor heat exchanger; a volute body, wherein the volute body is disposed in the second inner cavity; a first fan, the first fan being disposed in the volute body; A first motor, the first motor drives the second fan and the first fan to rotate synchronously through a connecting shaft; A limiting member, the limiting member is arranged on the connecting shaft; A volute body, the volute body comprising a first split shell and a second split shell, the first split shell being provided with a first mounting portion, the second split shell being provided with a second mounting portion; the first split shell being configured to be connected to the second split shell, after the first split shell is connected to the second split shell, the first mounting portion and the second mounting portion are spliced ​​to form a mounting hole; the aperture of the mounting hole is not less than the diameter of the connecting shaft, and the limiter cannot pass through the mounting hole; An electric control box is arranged in the second inner cavity; an electric control board is arranged in the electric control box, and the electric control board is electrically connected to the first motor through a line; the electric control box is arranged on one side of the volute body close to the top of the shell.

2. The air conditioner according to claim 1, wherein: The volute body also includes a second half shell, which is arranged on a side of the first split shell and the second split shell away from the second fan; a first accommodating cavity is formed between the second half shell, the first split shell and the second split shell, and the first fan is arranged in the first accommodating cavity.

3. The air conditioner according to claim 2, wherein: The second half shell and the second split shell are integrally formed.

4. The air conditioner according to claim 2, wherein: The first split shell includes a first bottom plate and a first enclosure plate arranged at the edge of the first bottom plate, and the first mounting portion is opened on the first bottom plate; the second split shell includes a second bottom plate and a second enclosure plate arranged at the edge of the second bottom plate, and the second mounting portion is opened on the second bottom plate.

5. The air conditioner according to claim 4, wherein: The second half shell includes a third bottom plate and a third enclosure plate arranged at an edge of the third bottom plate.

6. The air conditioner according to claim 5, wherein: The width of the first enclosure toward the second half-shell is greater than the width of the second enclosure toward the second half-shell; and a receiving groove for the first enclosure to be inserted is provided on the third enclosure.

7. The air conditioner according to claim 2, wherein: The first split shell and the second split shell are spliced ​​to form a first half shell, and the first half shell and the second half shell are connected via a connecting module.

8. The air conditioner according to claim 7, wherein: The connection module includes a clamping block and a clamping ring that are clamped to each other, and the clamping block and the clamping ring are respectively arranged on the first half shell and the second half shell.

9. The air conditioner according to claim 7, wherein: The connection module includes a first connection member, a second connection member and a threaded connection member, the first connection member and the second connection member are respectively arranged on the first half shell and the second half shell, and the threaded connection member is configured to connect the first connection member and the second connection member.

10. An air conditioner, comprising: A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the length direction; an air return port is opened at the top of the shell, and an air outlet is opened at the bottom of the front side of the shell; An indoor heat exchanger, the indoor heat exchanger being disposed in the first inner cavity, and the indoor heat exchanger exchanging heat with the air passing through the indoor heat exchanger to form a heat exchange airflow; a second fan, the second fan being arranged in the first inner cavity and being located below the indoor heat exchanger; the indoor airflow enters the first inner cavity through the return air port and is output from the air outlet after being heat exchanged by the indoor heat exchanger; a volute body, wherein the volute body is disposed in the second inner cavity; a first fan, the first fan being disposed in the volute body; A first motor, wherein the first motor drives the second fan and the first fan to rotate synchronously through a connecting shaft; A limiting member, wherein the limiting member is arranged on the connecting shaft of the first motor; The first split shell; A second split shell, wherein the first split shell and the second split shell are spliced ​​with each other; A mounting hole, the mounting hole being opened at the joint between the first split shell and the second split shell; the diameter of the mounting hole being the same as the diameter of the connecting shaft; An electric control box is arranged in the second inner cavity; an electric control board is arranged in the electric control box, and the electric control board is electrically connected to the first motor through a line; the electric control box is arranged on one side of the volute body close to the top of the shell.

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