WO2025030736A1 - Air conditioner - Google Patents

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

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 priority of the Chinese patent application with application number CN202322359758.1 filed on August 31, 2023, the priority of the Chinese patent application with application number CN202322368725.3 filed on August 31, 2023, the priority of the Chinese patent application with application number CN202322368419.X filed on August 31, 2023, and the priority of the Chinese patent application with application number CN202323339463.4 filed on December 7, 2023, all of which are incorporated by reference into this application.

Technical Field

The present disclosure relates to the technical field of air conditioning, and in particular to an air conditioner.

Background Art

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

Summary of the invention

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 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, 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; a 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 with the second split shell, and after the first split shell is connected with 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.

On the other hand, 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 electric control box. The housing is provided with a first inner cavity and a second inner cavity along the length direction; a return air port is provided at the top of the housing, and an air outlet is provided at the bottom of the front side of the housing. The indoor heat exchanger is provided 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. The second fan is provided in the first inner cavity and is 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. The volute body is provided in the second inner cavity. The first fan is provided in the volute body. The first motor drives the second fan and the first fan to rotate synchronously at the same time through 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 spliced with each other. The mounting hole is formed at the joint between the first split shell and the second split shell; the diameter of the mounting hole is the same as the diameter of the connecting shaft. The electric control box is arranged in the second inner cavity; the 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.

BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

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

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

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

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

FIG11 is an exploded schematic diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG12 is an exploded schematic diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

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;

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;

FIG15 is an exploded schematic diagram of a first half shell of a wall-mounted air conditioner according to an embodiment of the present disclosure;

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;

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

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

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

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

FIG21 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG22 is a schematic diagram of the internal structure of an embodiment of an air conditioner indoor unit according to the present disclosure;

FIG23 is a schematic diagram of the structure of the interior of an embodiment of an air conditioner indoor unit according to the present disclosure from another angle;

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

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

FIG26 is a schematic diagram of the structure of a casing according to an embodiment of an air conditioner indoor unit of the present disclosure;

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;

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

FIG29 is a schematic structural diagram of a first fan connected to a second fan in an embodiment of an air conditioner indoor unit according to the present disclosure;

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;

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

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

FIG33 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;

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

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

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;

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

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

FIG39 is a schematic diagram of the structure of a second volute in one embodiment of an air conditioner indoor unit according to the present disclosure;

FIG40 is a schematic structural diagram of another angle of the second volute in one embodiment of the air conditioner indoor unit according to the present disclosure;

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

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

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

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

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

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

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

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;

FIG49 is an enlarged view of the structure at B in FIG48;

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;

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

FIG52 is a schematic structural diagram of a first fan connected to a second fan in an embodiment of an air conditioner indoor unit according to the present disclosure;

FIG53 is a cross-sectional view of a first fan connected to a second fan in one embodiment of an air conditioner indoor unit according to the present disclosure;

FIG54 is an enlarged view of the structure at D in FIG53;

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;

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

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

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

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

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

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

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

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

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;

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

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

FIG67 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;

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

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

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

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

FIG. 72 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

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

FIG. 74 is a side view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 75 is a front view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 76 is a top view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 77 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Fig. 94 is a cross-sectional view taken along line A-A in Fig. 93;

Fig. 95 is a partial enlarged view of Fig. 94;

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

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

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

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

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

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

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

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;

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

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;

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

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

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

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

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

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

FIG112 is a cross-sectional view taken along line A-A in FIG111;

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

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

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

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

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

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

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

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

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

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

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;

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

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;

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

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

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

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

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

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

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

FIG133 is a cross-sectional view of the portion A-A in FIG132;

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

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

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

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

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

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

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

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

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

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

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

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

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

FIG. 147 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 148 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 149 is a partial exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 150 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;

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

DETAILED DESCRIPTION

Some embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments provided by the present disclosure are within the scope of protection of the present disclosure.

Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, 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" and the like are intended to indicate that specific 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 specific features, structures, materials or characteristics described may be included in any one or more embodiments or examples in any appropriate manner.

In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, 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.

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.

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

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

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.

In the present disclosure, an air conditioner (e.g., a wall mounted air conditioner) performs a refrigeration cycle of an indoor unit of an air conditioner by 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, and supplies refrigerant to the air that has been conditioned and heat exchanged. The compressor compresses the refrigerant gas in a low temperature and low pressure state and discharges the refrigerant gas in a high temperature and high pressure state. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid phase refrigerant in a high temperature and high pressure state condensed in the condenser into a low pressure liquid phase refrigerant. The indoor heat exchanger evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor. The indoor heat exchanger can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the indoor unit of the air conditioner can adjust the temperature of the indoor space. The outdoor unit of the air conditioner indoor unit refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner indoor unit includes the indoor heat exchanger, and the expansion valve may be provided in the indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an indoor heat exchanger. When the indoor heat exchanger functions as a condenser, the air conditioner indoor unit functions as a heater in the heating mode, and when the indoor heat exchanger functions as an indoor heat exchanger, the air conditioner indoor unit functions as a cooler in the cooling mode.

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

The first fan may be optionally a fresh air fan, which is configured to blow a fresh air flow.

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

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

The ventilation duct may optionally be a fresh air duct configured to allow outdoor fresh air to flow.

The second fan may optionally be a heat exchange fan, which is configured to blow the airflow after heat exchange.

The second air inlet may be an air-conditioning inlet, which is used for returning indoor air.

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-connecting space may be optionally a card-connecting groove; and the connecting space may be optionally a connecting groove.

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

As shown in Figures 1 to 7, in an exemplary embodiment of the wall-mounted air conditioner disclosed in the present invention, 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, wherein the housing 100 is configured to be hung on a wall; the housing 100 is arranged at the top of the room or above the room; the housing 100 is provided with a first fan 200 along the length direction. An inner cavity and a second inner cavity; a return air port is provided at the top of the housing 100, and an air outlet is provided at the bottom of the front side of the housing 100;

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;

The second fan 200 is disposed in the first inner cavity and is located below the indoor heat exchanger; under the rotation of the second fan 200, the indoor air flow 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;

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

The first motor 400 drives the second fan 200 and the first fan 300 to rotate synchronously via the connecting shaft 600;

The limit 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 limit member 500.

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, so as to improve the sealing.

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.

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 close the first accommodating cavity, which is convenient for manual operation.

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

In some embodiments, the first installation portion is a first installation space, which is opened in the first split shell 700. The second installation portion is a second installation space, which is opened in the second split shell 800. The first installation space and the second installation space are spliced to form a mounting hole.

In some embodiments, the volute body includes a first half shell, a second half shell 900 and a third half shell 110 spliced together, and 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 is convenient for production and manufacturing, and convenient for installing the first fan 300.

In some embodiments, the limiting member 500 is in a circular shape and is sleeved on the connecting shaft 600 , and the outer diameter of the limiting member 500 is smaller than the hole diameter of the mounting hole.

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 arranged on the connecting shaft 600, and due to process problems, the limiter 500 needs to be installed to the connecting shaft 600 through 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, resulting in the inability 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, so 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 of the volute body is poor.

The present disclosure adopts the above solution, the first split shell 700 and the second split shell 800 can directly align the first mounting portion and the second mounting portion with the connecting shaft 600, and the first split shell 700 and the second split shell 800 are spliced 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 aperture 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.

Please refer to Figures 6 to 16. In some embodiments, in the fresh air module, the first half shell and the second half shell 900 are spliced, the third half shell 110 is arranged on the side of the second half shell 900 away from the first half shell, and the second half shell 900 and the third half shell 110 are spliced. A first accommodating chamber is formed between the first half shell and the second half shell 900, and the first fan 300 is arranged in 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 provided on the volute body, and the first air inlet is connected to the second accommodating chamber. And a fresh air channel is provided on the second half shell 900 to connect the first accommodating chamber with the second accommodating chamber. A first air outlet is provided on the volute body, and the first air outlet is connected to 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.

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.

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. By plugging the insert strip into the slot, the first split shell 700 and the second split shell 800 are aligned and spliced, which is convenient for manual operation.

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

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

In some embodiments, the first split shell 700 includes a first bottom plate and a first enclosure disposed at the edge of the first bottom plate, and the first mounting portion is provided on the first bottom plate; the second split shell 800 includes a second bottom plate and a second enclosure disposed at the edge of the second bottom plate, and the second mounting portion is provided on the second bottom plate. The first split shell 700 and the second split shell 800 are spliced at the first enclosure and the second enclosure.

In some embodiments, the insert strip is disposed on the side of the first enclosure facing the second enclosure, and the insert strip 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. The slot is provided on the inner wall or the 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, the first bottom plate and the second bottom plate are located in the same plane and fit each other, and the first mounting portion and the second mounting portion are spliced to form a mounting hole; the end of the first enclosure and the end of the second enclosure are abutted, and the insert strip is inserted into the slot.

In some embodiments, the insert strip is disposed on the side of the second enclosure facing the first enclosure, and the insert strip 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. The slot is provided on the inner wall or the 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, the first bottom plate and the second bottom plate are located in the same plane and fit each other, and the first mounting portion and the second mounting portion are spliced to form a mounting hole; the end of the first enclosure and the end of the second enclosure are abutted, and the insert strip is inserted into the slot.

Referring to FIGS. 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 bottom plate and the second bottom plate. After the second half shell 900 is spliced with the first half shell, the third bottom plate is parallel to the first bottom plate and the second bottom plate. The third enclosure is spliced with the first enclosure and the second enclosure, respectively.

In some embodiments, the width of the first enclosure toward the second half shell 900 is greater than the width of the second enclosure toward the second half shell 900; and a receiving groove for the first enclosure to be inserted is provided on the third enclosure. The width of the first enclosure is different from the width of the second enclosure, and the joint of the first half shell and the second half shell 900 is not located in the same plane, thereby reducing the possibility of the first half shell and the second half shell 900 being separated along the joint. The structural strength of the entire volute body will be higher. The possibility of the volute body breaking at the joint of the first half shell and the second half shell 900 is reduced.

In some embodiments, the first half shell and the second half shell 900 are connected via a connecting module.

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.

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 arranged on the first half shell and the second half shell 900. The clamping block is clamped to the clamping ring to realize 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.

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 on the clamping ring to complete the connection between the first split shell 700 and the second half shell 900.

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 on the clamping ring to complete the connection between the second split shell 800 and the second half shell 900.

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.

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 a connection module, bonding, threaded connection and the like.

Referring to FIGS. 6 to 16, in some embodiments, the connection module includes a first connection member, a second connection member, and a threaded connection member, wherein the first connection member and the second connection member are respectively disposed on the first half shell and the second half shell 900, and the threaded connection member is configured to connect the first connection member and the second connection member. The first half shell and the second half shell 900 are connected by passing through the first connection member and the second connection member through the threaded connection member.

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

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.

In some embodiments, the threaded connector is a bolt, which passes through the first connector and the second connector, and the ends of the bolt passing through the first connector and the second connector are threadedly connected with a nut to form a connection between the first connector and the second connector.

In addition, referring to FIGS. 17 to 20 , in some embodiments, the present disclosure further provides a wall-mounted air conditioner, which includes the same contents as 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 hung on a wall; a first inner cavity and a second inner cavity arranged on the left and right are formed inside the housing 100; a return air port is opened at the top of the housing 100, and an air outlet is opened at the front bottom of the housing 100;

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;

The second fan 200 is disposed in the first inner cavity and is located below the indoor heat exchanger; under the rotation of the second fan 200, the indoor air flow 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;

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

The first motor 400 drives the second fan 200 and the first fan 300 to rotate synchronously through the connecting shaft 600. The stopper 500 is arranged on the connecting shaft of the first motor 400. The difference between this embodiment and the above-mentioned content is that: the first split shell 700 and the second split shell 800 are spliced with each other; the mounting hole is opened at the joint of the first split shell 700 and the second split shell 800; the diameter of the mounting hole is the same as the diameter of the connecting shaft.

Through the above scheme, 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, so as to improve the sealing performance.

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 both sides of the first motor 400, and 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, and the stopper 500 is disposed at the first end of the connecting shaft of the first motor 400.

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 .

The air conditioner indoor unit provided in the embodiment of the present disclosure may have various implementation forms, for example, it may be a wall mounted unit, a cabinet unit, etc. FIG. 21 to FIG. 42 are a specific implementation 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.

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 height direction of the casing 1 is from the top of the casing 1 to the bottom of the casing 1; the left side of the casing 1 and the right side of the casing 1 are opposite sides, and the length direction of the casing 1 is from the left side of the casing 1 to the right side 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 air 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 at 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.

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.

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.

In the above-mentioned air conditioner indoor unit, as shown in FIG22 and FIG23, the heat exchanger 4 is configured to heat the indoor air inside the casing 1 to form conditioned air; the heat exchanger 4 is installed in the heat exchange air duct; it should be noted that the heat exchanger 4 is arranged close to the casing air inlet 11. It should also be noted that the conditioned air can be cold air, hot air, or even normal temperature air.

In the above-mentioned air conditioner indoor unit, as shown in FIG22 , 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, and the first fan 10 is connected to the second fan 9 and rotates synchronously with the second fan 9. The first motor 5 is connected to the first fan 10 via the second fan 9 to indirectly drive the first fan 10 to rotate.

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 second fan 9 is connected to the first fan 10 at one end away from the first motor 5, 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.

In some embodiments, the second fan 9 extends along the length direction of the casing 1, and a fan sleeve 92 is provided at one 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 with the second fan 9; a connecting shaft is connected to one end of the second fan 9 away from the first motor 5, 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.

In other embodiments, the connecting shaft includes a drive shaft 91 and a fan shaft 101, the drive shaft 91 is connected to one 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 interconnected 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 prior art in this field and will not be repeated here.

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.

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 arranged to pass 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 10 and the second fan 9; the end of the drive shaft 91 away from the second fan 9 passes through the bearing cavity 714; it should be noted that an installation space 715 is provided in the bearing sleeve 71, and the installation space 715 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.

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 along the axial direction of the drive shaft 91 to the reinforcement portion 716 to increase the contact area between the drive shaft 91 and the bearing sleeve 71 .

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.

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 to be connected to the second bearing 7 and pass through the first through cavity 84 to be connected to the second fan 9. It should be noted that a connecting platform is provided in the first through cavity 84, 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, 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 and the inner wall of the first through cavity 84 are pressed and assembled, so that the second bearing 7 and the bearing seat 8 are fixedly connected; 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 the 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 between the second bearing 7 and the bearing seat 8.

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 , and the stopper 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from escaping from the first through cavity 84 .

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 position the installation position of the bearing 7 in the first through cavity 84.

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

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 the second mounting portion 18 is provided with a accommodating cavity, the opening of the accommodating cavity is arranged toward the top of the casing 1, and the extension portion 83 is arranged in the accommodating cavity to locate the connection position between 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 arranged in the clamping space, so that the bearing seat 8 is fixedly connected to the second mounting portion 18, thereby installing the bearing seat 8 in the casing 1.

In some embodiments, as shown in Figure 34, the bearing seat 8 is also provided with a support portion 81, and a support platform is also 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 one-to-one with the two support portions 81.

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 indoor 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, a fresh air duct is defined in the volute body 3, the first fan 10 is installed in the fresh air duct, 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 outdoors, 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 indoor 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.

In the above-mentioned air-conditioning indoor unit, as shown in Figures 37-38, 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 from 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; 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 arranged toward the second fan 9, and the reserved hole 311 is connected to the ventilation cavity 321.

In some embodiments, the purification module 38 includes a purification frame and a filter net, which is arranged on the purification frame. The filter net is configured to filter and purify outdoor fresh air to prevent impurities and flocs mixed in the outdoor fresh air from entering the room. It should be noted that the purification chamber 331 is provided with a socket 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 unplugged 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 net by themselves. In this embodiment, the disassembly and installation method of the purification module 38 is simple and easy to operate.

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 can flow into the room through the guide cavity.

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 the first fan 10 is operated to introduce outdoor fresh air into the purification chamber 331 through the pipeline from the first air inlet 37, and enters the ventilation cavity 321 after purification by the purification module 38, and flows to 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.

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 at intervals 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.

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 one 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 along the axial direction of 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 setting the connecting portion 103, the connecting cavity 1031 is defined by the connecting portion 103 to increase the reliability of the connection between the fan shaft 101 and the first fan 10.

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 between 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.

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 driving 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.

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 .

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 , respectively, to increase the firmness of the installation of the first bearing 20 .

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 is not 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.

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 indoor air noise and wind feeling when the fresh air function is not turned on, and improving user experience.

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 with a gear. The baffle 361 is provided with a rack 362, and the gear is meshed 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 the 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.

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 driving 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 driving shaft 91 to rotate, so as to increase the stability of the rotation of the fan shaft 101 and the driving shaft 91, thereby increasing the stability of the operation of the first fan 10. Through the operation of the first fan 10, outdoor fresh air is introduced into the purification chamber 331 from the first air inlet 37, and after purification 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.

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, so as to increase 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 omitted, 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.

The air conditioner indoor unit provided in the embodiment of the present disclosure may have various implementation forms, for example, it may be a wall mounted unit, a cabinet unit, etc. FIG. 43 to FIG. 67 are a specific implementation of the air conditioner indoor unit of the present disclosure, and 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.

In the above-mentioned air-conditioning indoor unit, as shown in FIG43 , the casing 1 is configured to form the overall appearance of the air-conditioning indoor unit, 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 height direction of the casing 1 is from the top of the casing 1 to the bottom of the casing 1; the left side of the casing 1 and the right side of the casing 1 are opposite sides, and the length direction of the casing 1 is from the left side of the casing 1 to the right side 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 air 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, and the machine 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 at 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 the outdoor fresh air flows into the room in an upward direction, thereby avoiding the mixing of outdoor fresh air and air-conditioning air.

In some embodiments, as shown in FIG. 46 and FIG. 48 , the housing 1 is provided with a first mounting cavity 14, a second mounting cavity 13 and a third mounting cavity. 16, 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.

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.

In the above-mentioned air conditioner indoor unit, as shown in FIG44 , the heat exchanger 4 is configured to heat the indoor air inside the casing 1 to form air conditioning wind to meet the cooling or heating needs of the user; the heat exchanger 4 is installed in the heat exchange air duct; it should be noted that the heat exchanger 4 is arranged close to the casing air inlet 11. It should also be noted that the air conditioning wind can be cold wind, hot wind, or even normal temperature wind.

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 indoor 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, 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 indoor 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 indoor room.

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 from 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 running. Therefore, in addition to the outdoor fresh air, the ventilation cavity 321 also has the noise generated by the operation of the first fan 9.

In the above-mentioned air conditioner 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 a 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. 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 the air in the purification chamber 331 purified by the purification module 34 enters the ventilation cavity 321 through the first grille 322, and flows 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.

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

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 air-conditioned wind, the air-conditioned wind flows 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 air inlet 11 of the casing; 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.

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 one 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 with 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.

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

In the above-mentioned air conditioner indoor unit, as shown in FIG. 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 along the axial direction of the second fan 6 respectively; the first connecting shaft 101 is connected to the first fan 9, and one end of the second connecting shaft 102 along the axial direction of the second fan 6 is connected to the first connecting shaft 101, and the other end passes through the reserved hole 311 and is connected to the driving The second connecting shaft 102 and the first connecting shaft 101 are connected together to form a step, which is located in the ventilation cavity 321 and is arranged at the connection between the first connecting shaft 101 and the second connecting shaft 102 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.

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.

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

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

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 driving shaft 61.

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 .

In order to support the rotation of the second connecting shaft 102, the second connecting shaft 102 is connected to a bearing 7, and the bearing 7 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.

In some of the 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 to rotate.

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 to connect with the second fan 6.

In the above-mentioned air-conditioning indoor unit, as shown in Figures 62-64, 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 with the first fan 9; specifically, as shown in Figures 56-59, the bearing 7 includes a bearing sleeve 71 and a bearing ball 72, and the bearing cavity 714 is arranged to pass 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 passes through the bearing cavity 714; it should be noted that an installation space 715 is provided in the bearing sleeve 71, and the installation space 715 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.

In the above-mentioned air conditioner indoor unit, as shown in Figures 47, 50, 51, 65-67, the bearing seat 8 is configured to install the bearing 7 so that the bearing 7 can better support the drive shaft 61; the bearing seat 8 is arranged outside the bearing 7 and connected to the housing 1. Specifically, as shown in Figures 60-62, a first through cavity 84 is provided inside the bearing seat 8, and the first through cavity 84 is configured to install the bearing 7. The bearing 7 is arranged 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 bearing 7 is connected to the bearing seat 8; the first through cavity 84 extends along the length direction of the housing 1, and the openings at both ends of the first through cavity 84 are correspondingly arranged 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 install 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 arranged outside the bearing 7 and installed on the housing 1. Specifically, as shown in Figures 65 to 67, a first through cavity 84 is provided inside the bearing seat 8, and the first through cavity 84 is configured to install the bearing 7. The bearing 7 is arranged in the first through cavity 84 and the outer periphery of the bearing sleeve 71 is closely attached to the inner wall of the first through cavity 84, so that the shaft The bearing 7 is connected to the bearing seat 8; the first through cavity 84 extends along the length direction 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 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 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, so that the bearing 7 is fixedly connected to the bearing seat 8; it should also be noted that the connecting platform is connected to the inner wall of the first through cavity 84, and the inner diameter of the connecting platform gradually decreases along the axial direction of the first through cavity 84 from the 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 is, which facilitates the connection of the bearing 7 and the bearing seat 8.

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 , and the stopper 85 cooperates with the bearing sleeve 71 to prevent the bearing sleeve 71 from separating from the first through cavity 84 .

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 position the installation position of the bearing 7 in the first through cavity 84.

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

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.

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.

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

In other embodiments, as shown in Figures 51 and 65, the clamping portion 82 is disposed on the extension portion 83 in the first accommodating cavity and is located on the side of the extension portion 83 that is 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 disposed 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.

In some embodiments, as shown in Figure 65, the bearing seat 8 is also 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 also 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 one-to-one with the two support portions 81.

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 it is necessary to turn off the fresh air function, 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 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 the outdoor fresh air to be introduced into the purification chamber 331 from the first air inlet 37, thereby allowing the outdoor fresh air to flow into the room from the first air outlet 35; it should be noted that the switch component 36 closing the first air inlet 37 can also prevent the 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; it should also be noted that the switch component 36 belongs to the conventional technical means in the field and will not be repeated here.

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 driving 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.

The steps for connecting the drive shaft 61 and the first fan 9 in the air conditioner indoor unit are as follows: first, the drive shaft 61 passes through the reserved hole 311 and connects with the first fan 9. The machine 9 is connected, and then the second volute 32 is connected to the first volute 31.

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 additionally set a 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 connected to the second fan 6 through the reserved hole 311 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.

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 by 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.

As shown in Figures 68 to 74, in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner comprises: 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 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; 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 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; 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 heat exchanged by the indoor heat exchanger 200;

The volute body 700 is disposed in the second inner cavity, and a first air inlet and a first air outlet 720 are provided on 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;

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.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged on the top of the volute body 700, which does not occupy the space in the length direction of the shell 100, and reduces the overall length of the wall-mounted air conditioner. In addition, the length of the shell 100 can be shortened, reducing the material and production and processing costs of the shell 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, which improves safety and saves costs.

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 housing 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 housing 100, the length of the housing 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 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, the rotation stability is poor, and the first fan 300 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 located closer to the first motor 500 , and the first fan 300 and the second fan 400 have better rotation stability, which reduces noise and improves user experience.

Please refer to Figures 70 to 83. In some embodiments, the electric control box 600 is disposed above the volute body 700.

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 .

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

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

In some embodiments, the first motor 500 has one output shaft, and both ends of the output shaft are 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.

In some embodiments, the first motor 500 has two output shafts, the two output shafts are respectively 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.

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

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

In some embodiments, the indoor heat exchanger 200 has a pipeline on one side facing the volute body 700, and a refrigerant flows in the pipeline. The first motor 500 is disposed between the second fan 400 and the volute body 700, and 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.

In some embodiments, the electric control board 610 is connected to the indoor heat exchanger 200 through a first line, and the end of the first line close to the electric control board 610 is higher than the end of the first line close to the indoor heat exchanger 200. During the operation of the wall-mounted air conditioner, condensed water on the indoor heat exchanger 200 will flow to the first line, but through the above solution, the condensed water will only be collected at the end of the first line close to the indoor heat exchanger 200 under the action of gravity. Condensed water is prevented from flowing to the electric control board 610 through the first line, and a short circuit of the electric control board 610 is avoided, thereby improving safety.

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.

Referring to FIGS. 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 the 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.

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

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.

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

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

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.

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.

Referring to FIGS. 78 to 83 , in some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity 750 is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

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, and the axial hole is used for the output shaft of the first motor 500 to pass through.

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

In some embodiments, a bearing is disposed in the shaft hole, and the bearing includes an outer ring and an inner ring coaxially disposed in the outer ring, the inner ring is rotatably connected to the outer ring, the inner ring is coaxially sleeved on the output shaft of the first motor 500, and the outer ring is coaxially fixed in the shaft hole. The shaft hole is ensured to be coaxial with the output shaft of the first motor 500 by the bearing, and when the first motor 500 drives the first fan 300 to rotate, the first fan 300 is prevented from vibrating and colliding with the volute body 700 to generate noise.

In some embodiments, the first split shell 730 and the second split shell 740 are spliced with each other. 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.

In some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742. The second half shell 742 is located between the first half shell 741 and the first split shell 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 first air inlet through the first air inlet. The air enters the first ventilation cavity 750 after entering the second ventilation cavity 760 , and is output to the room through the first air outlet 720 under the action of the first fan 300 .

In some embodiments, the first half shell 741 and the second half shell 742 are spliced with each other. The connection between the first half shell 741 and the second half shell 742 also includes but is not limited to: clamping, screw connection, bonding, welding, riveting, etc.

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

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760; a filter screen 800 is provided in the second ventilation cavity 760, and the filter screen 800 is provided between the first air inlet and the ventilation channel. When the motor drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity 750 through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

Referring to FIGS. 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 .

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 750 and the second ventilation cavity 760 .

In some embodiments, the filter screen 800 includes a frame and a filter screen sheet, the filter screen sheet is arranged in the frame, and the filter screen sheet and the frame are detachably connected. When the filter screen 800 needs to be replaced, the filter screen sheet can be replaced separately, which saves costs.

In some embodiments, the side of the filter 800 facing away from the second half shell 742 is the windward side, and the axial direction of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 is covered with 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, ensuring that the outdoor fresh air is filtered and purified by the filter 800, thereby improving the user experience.

In some embodiments, a plug-in channel communicating with the second ventilation cavity 760 is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

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

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

Please refer to Figures 68 to 83. In some embodiments, a ventilation pipe 900 is provided on the shell 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 shell 100 through the ventilation pipe 900.

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

In some embodiments, a first driving member is disposed in the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so that the first fresh air baffle opens or closes the first air inlet. The first driving member includes but is not limited to a motor, a motor, a gas rod, and a hydraulic rod.

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 turned 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 turned 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 driven to rotate at the same time by a first motor 500, the first fan 300 will still rotate in the volute body 700 when the fresh air mode is turned off; the first air outlet 720 is closed by the second fresh air baffle, so that the volute body 700 is a closed space, reducing the noise generated by the airflow.

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 motor, a gas rod, and a hydraulic rod.

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

In some embodiments, a third driving member is disposed 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 .

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 .

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.

Referring to FIGS. 68 to 83 , the present disclosure further 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 electric control box 600 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; 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 front side of the housing 100;

The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; 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 heat exchanged by the indoor heat exchanger 200;

The volute body 700 is disposed in the second inner cavity, and a first air inlet and a first air outlet 720 are provided on 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;

The electric control box 600 is disposed in the second inner cavity; an electric control board 610 is disposed 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 disposed on a side of the volute body 700 facing the second air inlet 101.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged on the top of the volute body 700, which does not occupy the space in the length direction of the shell 100, and reduces the overall length of the wall-mounted air conditioner. In addition, the length of the shell 100 can be shortened, reducing the material and production and processing costs of the shell 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, which improves safety and saves costs.

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

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 .

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

As shown in Figures 84 to 93, in an exemplary embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner comprises: 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 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; 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;

The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; 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 heat exchanged by the indoor heat exchanger 200;

The volute body 700 is disposed in the second inner cavity, and a first air inlet and a first air outlet 720 are provided on 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;

The electric control box 600 is disposed in the second inner cavity; an electric control board 610 is disposed 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 disposed on one side of the volute body 700 close to the bottom of the housing 100 .

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged at the bottom of the volute body 700, which does not occupy the space in the length direction of the shell 100, and reduces the overall length of the wall-mounted air conditioner. In addition, the length of the shell 100 can be shortened, reducing the material and production and processing costs of the shell 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, which improves safety and saves costs.

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 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, the rotation stability is poor, the first fan 300 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 of the first fan 300 and the second fan 400 is relatively stable. Better dynamic stability, reduced noise and improved user experience.

In addition, in the present disclosure, the electrical box 600 is disposed on the side of the volute body 700 away from the second air inlet 101, so the electrical box 600 is closer to the bottom. During maintenance, the user can open the electrical box 600 from the bottom for maintenance without going to the top of the housing 100, which is convenient for maintenance of the electrical box 600.

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

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

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

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

In some embodiments, the first motor 500 has one output shaft, and both ends of the output shaft are 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.

In some embodiments, the first motor 500 has two output shafts, the two output shafts are respectively 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.

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

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

In some embodiments, the indoor heat exchanger 200 has a pipeline on one side facing the volute body 700, and a refrigerant flows in the pipeline. The first motor 500 is disposed between the second fan 400 and the volute body 700, and 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.

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 the 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 improves the service life of the electric control board 610 in the electric control box 600.

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

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.

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

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

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.

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, and the height required for the user to repair the electrical box 600 is reduced, which is convenient for user maintenance.

In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

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, which is configured to allow the output shaft of the first motor 500 to pass through.

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

In some embodiments, a bearing is disposed in the shaft hole, and the bearing includes an outer ring and an inner ring coaxially disposed in the outer ring, the inner ring is rotatably connected to the outer ring, the inner ring is coaxially sleeved on the output shaft of the first motor 500, and the outer ring is coaxially fixed in the shaft hole. The shaft hole is ensured to be coaxial with the output shaft of the first motor 500 by the bearing, and when the first motor 500 drives the first fan 300 to rotate, the first fan 300 is prevented from vibrating and colliding with the volute body 700 to generate noise.

In some embodiments, the first split shell 730 and the second split shell 740 are spliced with each other. 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.

Please refer to Figures 86 to 100. In some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742. The second half shell 742 is located between the first half shell 741 and the first split shell 730 to form a second ventilation cavity, and the second ventilation cavity is connected to the first ventilation cavity; the first air inlet is connected to 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, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, the first half shell 741 and the second half shell 742 are spliced with each other. The connection between the first half shell 741 and the second half shell 742 also includes but is not limited to: clamping, screw connection, bonding, welding, riveting, etc.

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

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity and the second ventilation cavity; a filter screen 800 is provided in the second ventilation cavity, and the filter screen 800 is provided between the first air inlet and the ventilation channel. When the motor drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity through the first air inlet, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

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 .

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.

86 to 100, in some embodiments, the filter screen 800 includes a frame and a filter screen, the filter screen is disposed in the frame, and the filter screen is detachably connected to the frame. When the filter screen 800 needs to be replaced, the filter screen can be replaced alone, saving costs.

In some embodiments, the side of the filter 800 facing away from the second half shell 742 is the windward side, and the axial direction of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 is provided with a ventilation channel, and the fresh air in the second ventilation cavity must pass through the filter 800 to enter the first ventilation cavity through the ventilation channel, ensuring that the outdoor fresh air is filtered and purified by the filter 800, thereby improving the user experience.

In some embodiments, a plug-in channel connected to the second ventilation cavity is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity. The insertion and removal of the filter 800 in the second ventilation cavity is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

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

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

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 .

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

In some embodiments, a first driving member is disposed in the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so that the first fresh air baffle opens or closes the first air inlet. The first driving member includes but is not limited to a motor, a motor, a gas rod, and a hydraulic rod.

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 turned 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 turned 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 driven to rotate at the same time by a first motor 500, the first fan 300 will still rotate in the volute body 700 when the fresh air mode is turned off; the first air outlet 720 is closed by the second fresh air baffle, so that the volute body 700 is a closed space, reducing the noise generated by the airflow.

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 motor, a gas rod, and a hydraulic rod.

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

In some embodiments, a third driving member is disposed 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 .

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 .

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.

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.

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 .

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.

In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

In some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742. The second half shell 742 is located between the first half shell 741 and the first split shell 730 to form a second ventilation cavity, and the second ventilation cavity is connected to the first ventilation cavity; the first air inlet is connected to 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, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity and the second ventilation cavity; a filter screen 800 is provided in the second ventilation cavity, and the filter screen 800 is provided between the first air inlet and the ventilation channel. 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, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, a plug-in channel connected to the second ventilation cavity is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity. The insertion and removal of the filter 800 in the second ventilation cavity is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

The present disclosure also 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 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; 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;

The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; 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 heat exchanged by the indoor heat exchanger 200;

The volute body 700 is disposed in the second inner cavity, and a first air inlet and a first air outlet 720 are provided on 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;

The electric control box 600 is disposed in the second inner cavity; an electric control board 610 is disposed 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 disposed on a side of the volute body 700 away from the second air inlet 101.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged at the bottom of the volute body 700, which does not occupy the space in the length direction of the shell 100, and reduces the overall length of the wall-mounted air conditioner. In addition, the length of the shell 100 can be shortened, reducing the material and production and processing costs of the shell 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, which improves safety and saves costs.

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.

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

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

As shown in Figures 101 to 108, in an illustrative embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner comprises: 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 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; a second air inlet 101 is provided at the top of the housing 100; a front panel 104 is provided at the front side of the housing 100, and a third air outlet is provided at the front panel 104 of the housing 100;

The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; 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 after being heat exchanged by the indoor heat exchanger 200;

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

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 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 close to the third air outlet.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged on the side of the volute body 700 facing the front of the housing 100, which does not occupy the space in the length direction of the housing 100, reducing the overall length of the wall-mounted air conditioner. In addition, the length of the housing 100 can be shortened, reducing the material and 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, improving safety and saving costs.

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 housing 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 housing 100, the length of the housing 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 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 the rotation stability is poor. The first fan 300 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 located closer to the first motor 500 , and the first fan 300 and the second fan 400 have better rotation stability, which reduces noise and improves user experience.

In some embodiments of the present disclosure, the electric control box 600 is arranged on the side of the volute body 700 facing the front panel 104. The electric control box 600 is arranged on the side of the volute body 700 facing the front of the shell 100, does not occupy the space in the length direction of the shell 100, and reduces the overall length of the wall-mounted air conditioner. In addition, the length of the shell 100 can be shortened, reducing the material and production and processing costs of the shell 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, which improves safety and saves costs.

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

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

In some embodiments, the first motor 500 has one output shaft, and both ends of the output shaft are 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.

In some embodiments, the first motor 500 has two output shafts, the two output shafts are respectively 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.

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

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

Referring to FIGS. 101 to 120 , in some embodiments, the indoor heat exchanger 200 has a pipeline on one side facing the volute body 700, and a refrigerant flows in the pipeline. The first motor 500 is disposed between the second fan 400 and the volute body 700, and 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.

In some embodiments, one side of the housing 100 is hung on a wall, and the direction of the side of the housing 100 hung on the wall toward the front panel 104 is 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 the 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 improves the service life of the electric control board 610 in the electric control box 600.

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

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 , and the user can open the front panel 104 to directly repair the electric control box 600 , which is convenient for user operation.

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

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.

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.

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, and the height required for the user to repair the electrical box is reduced, which is convenient for the user to maintain.

Referring to FIGS. 101 to 120 , in some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity 750 is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

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, which is configured to allow the output shaft of the first motor 500 to pass through.

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

In some embodiments, a bearing is disposed in the shaft hole, and the bearing includes an outer ring and an inner ring coaxially disposed in the outer ring, the inner ring is rotatably connected to the outer ring, the inner ring is coaxially sleeved on the output shaft of the first motor 500, and the outer ring is coaxially fixed in the shaft hole. The shaft hole is ensured to be coaxial with the output shaft of the first motor 500 by the bearing, and when the first motor 500 drives the first fan 300 to rotate, the first fan 300 is prevented from vibrating and colliding with the volute body 700 to generate noise.

In some embodiments, the first split shell 730 and the second split shell 740 are spliced with each other. 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.

Referring to FIGS. 101 to 120 , in some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742. The second half shell 742 is located between the first half shell 741 and the first split shell 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, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, the first half shell 741 and the second half shell 742 are spliced with each other. The connection between the first half shell 741 and the second half shell 742 also includes but is not limited to: clamping, screw connection, bonding, welding, riveting, etc.

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

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760; a filter screen 800 is provided in the second ventilation cavity 760, and the filter screen 800 is provided between the first air inlet and the ventilation channel. When the motor drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity 750 through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

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 .

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 750 and the second ventilation cavity 760 .

101 to 120, in some embodiments, the filter screen 800 includes a frame and a filter screen, the filter screen is disposed in the frame, and the filter screen is detachably connected to the frame. When the filter screen 800 needs to be replaced, the filter screen can be replaced separately, saving costs.

In some embodiments, the side of the filter 800 facing away from the second half shell 742 is the windward side, and the axial direction of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 is covered with 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, ensuring that the outdoor fresh air is filtered and purified by the filter 800, thereby improving the user experience.

In some embodiments, a plug-in channel communicating with the second ventilation cavity 760 is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

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

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

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 760 in the ventilation housing 100 through the ventilation pipe 900 .

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

In some embodiments, a first driving member is disposed in the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move so that the first fresh air baffle opens or closes the first air inlet. The first driving member includes but is not limited to a motor, a motor, a gas rod, and a hydraulic rod.

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 turned 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 turned 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 driven to rotate at the same time by a first motor 500, the first fan 300 will still rotate in the volute body 700 when the fresh air mode is turned off; the first air outlet 720 is closed by the second fresh air baffle, so that the volute body 700 is a closed space, reducing the noise generated by the airflow.

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 motor, a gas rod, and a hydraulic rod.

In some embodiments, an air guide plate is provided at the third air outlet, and the air guide plate is configured to close the third air outlet. When the wall-mounted air conditioner is not in use, the third air outlet is closed by the air guide plate to prevent dust from entering the housing 100 and improve the aesthetics and integrity.

In some embodiments, a third driving member is disposed 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.

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.

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.

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.

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 .

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.

In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity 750 is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

Referring to FIGS. 101 to 120 , in some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742. The second half shell 742 is located between the first half shell 741 and the first split shell 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, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760; a filter screen 800 is provided in the second ventilation cavity 760, and the filter screen 800 is provided between the first air inlet and the ventilation channel. 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, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity 750 through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, a plug-in channel communicating with the second ventilation cavity 760 is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

Please refer to Figures 101 to 120 , the present disclosure also provides a wall-mounted air conditioner, which includes: a shell 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.

The shell 100 is provided with a first inner cavity and a second inner cavity along the length direction; the top of the shell 100 is provided with a second air inlet 101, and the bottom of the shell 100 is provided with a third air outlet; the front side of the shell 100 has a front panel 104; the base is provided in the shell 100 and close to the rear side of the shell 100, and the base is away from the front panel 104; the indoor heat exchanger 200 is provided in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on the air passing through the indoor heat exchanger 200 to form a heat exchange airflow;

The second fan 400 is arranged in the first inner cavity, and the second fan 400 is arranged below the indoor heat exchanger 200; the indoor air flow 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 after being heat exchanged by the indoor heat exchanger 200; the volute body 700 is arranged in the second inner cavity, and the volute body 700 is provided with a first air inlet and a first air outlet 720; the first fan 300 is arranged in the volute body 700; 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 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.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged on the side of the volute body 700 facing the front of the housing 100, which does not occupy the space in the length direction of the housing 100, reducing the overall length of the wall-mounted air conditioner. In addition, the length of the housing 100 can be shortened, reducing the material and 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, improving safety and saving costs.

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.

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

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

As shown in Figures 121 to 138, in an illustrative embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner comprises: 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 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; a second air inlet 101 is provided at the top of the housing 100; a front panel 104 is provided at the front side of the housing 100, and a third air outlet is provided at the front panel 104 of the housing 100;

The indoor heat exchanger 200 is disposed in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; 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 after being heat exchanged by the indoor heat exchanger 200;

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

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 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 away from the third air outlet.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged on the side of the volute body 700 facing the rear of the housing 100, which does not occupy the 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 and 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.

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 housing 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 housing 100, the length of the housing 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 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 the rotation stability is poor. The first fan 300 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 located closer to the first motor 500 , and the first fan 300 and the second fan 400 have better rotation stability, which reduces noise and improves user experience.

In some embodiments of the present disclosure, the electric control box 600 is arranged on the side of the volute body 700 facing the front panel 104. The electric control box 600 is arranged on the side of the volute body 700 facing the rear of the shell 100, does not occupy the space in the length direction of the shell 100, and reduces the overall length of the wall-mounted air conditioner. In addition, the length of the shell 100 can be shortened, reducing the material and production and processing costs of the shell 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, which improves safety and saves costs.

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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 .

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

In some embodiments, the first motor 500 has one output shaft, and both ends of the output shaft are 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.

In some embodiments, the first motor 500 has two output shafts, the two output shafts are respectively 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.

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

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

Referring to FIGS. 121 to 138 , in some embodiments, the indoor heat exchanger 200 has a pipeline on one side facing the volute body 700, and a refrigerant flows in the pipeline. The first motor 500 is disposed between the second fan 400 and the volute body 700, and 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.

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.

In some embodiments, one side of the housing 100 is hung on a wall, and the direction of the side of the housing 100 hung on the wall toward the front panel 104 is 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 the 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 improves the service life of the electric control board 610 in the electric control box 600.

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

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 , and the user can open the front panel 104 to directly repair the electric control box 600 , which is convenient for user operation.

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

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.

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, and the height required for the user to repair the electrical box is reduced, which is convenient for the user to maintain.

Referring to FIGS. 121 to 138 , in some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity 750 is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

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, which is configured to allow the output shaft of the first motor 500 to pass through.

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

In some embodiments, a bearing is disposed in the shaft hole, and the bearing includes an outer ring and an inner ring coaxially disposed in the outer ring, the inner ring is rotatably connected to the outer ring, the inner ring is coaxially sleeved on the output shaft of the first motor 500, and the outer ring is coaxially fixed in the shaft hole. The shaft hole is ensured to be coaxial with the output shaft of the first motor 500 by the bearing, and when the first motor 500 drives the first fan 300 to rotate, the first fan 300 is prevented from vibrating and colliding with the volute body 700 to generate noise.

In some embodiments, the first split shell 730 and the second split shell 740 are spliced with each other. 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.

Please refer to FIGS. 121 to 138 , in some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742, the second half shell 742 is located between the first half shell 741 and the first split shell 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, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, the first half shell 741 and the second half shell 742 are spliced with each other. The connection between the first half shell 741 and the second half shell 742 also includes but is not limited to: clamping, screw connection, bonding, welding, riveting, etc.

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

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760; a filter screen 800 is provided in the second ventilation cavity 760, and the filter screen 800 is provided between the first air inlet and the ventilation channel. When the motor drives the first fan 300 to rotate, outdoor fresh air enters the second ventilation cavity 760 through the first air inlet, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity 750 through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

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 .

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 750 and the second ventilation cavity 760 .

121 to 138, in some embodiments, the filter screen 800 includes a frame and a filter screen, the filter screen is disposed in the frame, and the filter screen is detachably connected to the frame. When the filter screen 800 needs to be replaced, the filter screen can be replaced separately, saving costs.

In some embodiments, the side of the filter 800 facing away from the second half shell 742 is the windward side, and the axial direction of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 is covered with 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, ensuring that the outdoor fresh air is filtered and purified by the filter 800, thereby improving the user experience.

In some embodiments, a plug-in channel communicating with the second ventilation cavity 760 is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

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

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

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 760 in the ventilation housing 100 through the ventilation pipe 900 .

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

In some embodiments, a first driving member is disposed in the volute body 700, and the first driving member is configured to drive the first fresh air baffle to move. The first driving member includes but is not limited to a motor, a gas rod, and a hydraulic rod.

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 turned 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 turned 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 driven to rotate at the same time by a first motor 500, the first fan 300 will still rotate in the volute body 700 when the fresh air mode is turned off; the first air outlet 720 is closed by the second fresh air baffle, so that the volute body 700 is a closed space, reducing the noise generated by the airflow.

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 motor, a gas rod, and a hydraulic rod.

In some embodiments, an air guide plate is provided at the third air outlet, and the air guide plate is configured to close the third air outlet. When the wall-mounted air conditioner is not in use, the third air outlet is closed by the air guide plate to prevent dust from entering the housing 100 and improve the aesthetics and integrity.

In some embodiments, a third driving member is disposed 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.

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.

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.

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.

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 .

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.

In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740, and a first ventilation cavity 750 is formed between the first split shell 730 and the second split shell 740; the first fan 300 is disposed in 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 to the room through the first air outlet 720.

Please refer to FIGS. 121 to 138 , in some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742, the second half shell 742 is located between the first half shell 741 and the first split shell 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, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity 750 and the second ventilation cavity 760; a filter screen 800 is provided in the second ventilation cavity 760, and the filter screen 800 is provided between the first air inlet and the ventilation channel. 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, passes through the filter screen 800 and is filtered by the filter screen 800, and then enters the first ventilation cavity 750 through the ventilation channel, and is output to the room through the first air outlet 720 under the action of the first fan 300.

In some embodiments, a plug-in channel communicating with the second ventilation cavity 760 is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity 760. The insertion and removal of the filter 800 in the second ventilation cavity 760 is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

Please refer to Figures 121 to 138 , the present disclosure also provides a wall-mounted air conditioner, which includes: a shell 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.

The shell 100 is provided with a first inner cavity and a second inner cavity along the length direction; the top of the shell 100 is provided with a second air inlet 101, and the bottom of the shell 100 is provided with a third air outlet; the front side of the shell 100 has a front panel 104; the base is provided in the shell 100 and close to the rear side of the shell 100, and the base is away from the front panel 104; the indoor heat exchanger 200 is provided in the first inner cavity, and the indoor heat exchanger 200 performs heat exchange on 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; the indoor air flow 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 after being heat exchanged by the indoor heat exchanger 200; the volute body 700 is disposed in the second inner cavity, and the volute body 700 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;

The electric control box 600 is disposed in the second inner cavity; an electric control board 610 is disposed 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 disposed on one side of the volute body 700 close to the base.

Through the above solution, the electric control box 600 and the volute body 700 are arranged on the same side of the second fan 400, and the electric control box 600 is arranged on the side of the volute body 700 facing the rear of the housing 100, which does not occupy the 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 and 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.

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.

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

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; the thickness direction of the electric control board 610 is the same as the thickness direction of the electric control box 600. Because the thickness direction of the electric control box 600 is relatively thin, through this configuration, the thickness direction of the electric control box 600 is the same as the height direction of the housing 100. The space occupied is reduced, the size of the volute body 700 can be designed to be larger, and the size of the first fan 300 becomes larger accordingly, thereby increasing the air output of the fresh air.

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

As shown in Figures 139 to 151, in an illustrative embodiment of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner comprises: a housing 100, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; 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 front side of the housing 100; the indoor heat exchanger is provided in the first inner cavity, and the indoor heat exchanger performs heat exchange on the air passing through the indoor heat exchanger to form a heat exchange airflow;

The second fan 400 is disposed in the first inner cavity and below the indoor heat exchanger. 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 room through the third air outlet 102 after being heat exchanged by the indoor heat exchanger.

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;

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; and the first split shell 730 is provided with a positioning portion 230 configured to cooperate with the positioning piece 190.

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.

In some embodiments, the second split shell 740 includes a first half shell 741 and a second half shell 742, the second half shell 742 is disposed on the side of the first half shell 741 facing the second fan 400, the first flange 170 is disposed on the side of the second half shell 742 away from the first half shell 741, and the first split shell 730 is configured to be connected to the second half shell 742. The first half shell 741 and the second half shell 742 are spliced with each other, and then the first split shell 730 and the second half shell 742 are spliced to form the volute body 700, which facilitates manual assembly and improves work efficiency.

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.

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

In some embodiments, the first air outlet 720 is provided at the top of the volute body 700. After being output, the outdoor fresh air is sucked into the second air inlet 101 and is output after being heated by the indoor heat exchanger.

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

In some embodiments, the second half shell 742 has an air outlet section, which is a part of the first air outlet 720. The first flange 170 is disposed at the air outlet section, and the length direction of the air outlet section is consistent 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 the first split shell 730 is moved along the length direction of the first flange 170, so that the first split shell 730 is spliced with the second half shell 742.

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 attached to the first flange 170, and the first split shell 730 is pushed from the side away from the second fan 400 toward the direction of the second half shell 742 to achieve the connection between the first split shell 730 and the second half shell 742.

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 .

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, and the first split shell 730 is configured to be connected to the second half shell 742 and the third half shell 743; the 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, and when the first split shell 730 is installed, after 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 realize the installation of the first split shell 730 and the second split shell 740, which is convenient for manual operation and improves the sealing performance of the volute body 700.

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, the third half shell 743 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 the first split shell 730 moves along the length direction 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 to complete the installation of the first split shell 730 and the second split shell 740.

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

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.

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

In some embodiments, the first motor 500 has one output shaft, and both ends of the output shaft are 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.

In some embodiments, the first motor 500 has two output shafts, the two output shafts are respectively 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.

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

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

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

In some embodiments, a first mounting portion is provided on the first split shell 730, a second mounting portion is provided on the third half shell 743, the first split shell 730 is connected to the third half shell 743, and the first mounting portion and the second mounting portion are spliced to form the shaft hole 210. During installation, the first split shell 730 and the second split shell 740 are directly sleeved on the output shaft or the connecting shaft of the first motor 500; therefore, the diameter of the shaft hole 210 can be reduced, reducing the possibility of airflow leakage through the shaft hole 210, so as to improve the sealing performance.

In the prior art, the output shaft or connecting shaft of the first motor 500 needs to be connected to the first fan 300. In order to avoid limiting the position of the first fan 300 and avoid the first fan 300 from contacting the volute body 700 to generate noise, a limiter is set on the output shaft or connecting shaft of the first motor 500, and the limiter is mostly a collar. In the prior art, the first split shell 730 and the third half shell 743 of the volute body 700 are a whole and directly open the shaft hole 210. Due to process problems, the limiter needs to be installed to the connecting shaft or output shaft through special equipment. If the connecting shaft or output shaft passes through the shaft hole 210 first, the equipment for installing the limiter will interfere with the volute body 700, resulting in the inability to install the limiter. Therefore, the limiter must be installed before the connecting shaft or output shaft passes through the shaft hole 210, so the aperture of the shaft hole 210 must be larger than the diameter of the limiter. Therefore, a large gap will be generated between the shaft hole 210 and the connecting shaft or output shaft, resulting in air leakage, and the sealing of the volute body 700 is poor.

In the present disclosure, the first split shell 730 and the third half shell 743 can directly align the first mounting portion and the second mounting portion with the connecting shaft or The output shaft is connected, and the first split shell 730 and the third half shell 743 are spliced so that the shaft hole 210 is directly sleeved on the connecting shaft or the output shaft. The stopper does not need to pass through the shaft hole 210, so the aperture 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 the output shaft, and improving the sealing performance of the volute body 700.

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 passes through the shaft hole 210 and is connected to the first fan 300. The output shaft of the first motor 500 drives the first fan 300 and the second fan 400 to rotate synchronously at the same time, thereby reducing the vibration of the second fan 400 and the first fan 300 when they rotate.

In some embodiments, the first motor 500 is disposed at one end of the second fan 400 away from the first fan 300 , and 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 .

In some embodiments, a first ventilation cavity is formed between the first split shell 730, the second half shell 742 and the first half shell 741, and the first fan 300 is disposed in the first ventilation cavity; a second ventilation cavity is formed between the second half shell 742 and the first half shell 741; a ventilation channel is provided on the second half shell 742 to achieve communication between the first ventilation cavity and the second ventilation cavity. When the first motor 500 drives the first fan 300 to rotate, the outdoor airflow enters the second ventilation cavity under the action of the first fan 300, and the fresh air enters the first ventilation cavity through the ventilation channel and is output to the room.

In some embodiments, a filter screen 800 is disposed in the second ventilation cavity, and the filter screen 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 screen 800 and is filtered by the filter screen 800, enters the first ventilation cavity through the ventilation channel, and is output to the room under the action of the first fan 300.

In some embodiments, a plug-in channel connected to the second ventilation cavity is provided on the volute body 700, and the plug-in channel is configured to insert the filter 800 into the second ventilation cavity. The insertion and removal of the filter 800 in the second ventilation cavity is achieved through the plug-in channel, which facilitates the maintenance and replacement of the filter 800.

In some embodiments, the filter screen 800 includes a frame and a filter screen sheet, the filter screen sheet is arranged in the frame, and the filter screen sheet and the frame are detachably connected. When the filter screen 800 needs to be replaced, the filter screen sheet can be replaced separately, which saves costs.

In some embodiments, the side of the filter 800 facing away from the second half shell 742 is the windward side, and the axial direction of the first fan 300 is perpendicular to the windward side of the filter 800. The filter 800 is provided with a ventilation channel, and the fresh air in the second ventilation cavity must pass through the filter 800 to enter the first ventilation cavity through the ventilation channel, ensuring that the outdoor fresh air is filtered and purified by the filter 800, thereby improving the user experience.

The present disclosure also provides a wall-mounted air conditioner, which includes: a housing 100, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300 and a first motor 500, wherein a first inner cavity and a second inner cavity are provided inside the housing 100 along the length direction; 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 performs heat exchange on the air passing through the indoor heat exchanger to form a heat exchange airflow;

The second fan 400 is disposed in the first inner cavity and below the indoor heat exchanger. 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 room through the third air outlet 102 after being heat exchanged by the indoor heat exchanger.

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;

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 portion 230 configured to cooperate with the positioning member 190.

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 to 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.

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

Those skilled in the art will appreciate 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 (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, 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. The air conditioner according to claim 1, wherein the volute body further comprises a second half shell, the second half shell being 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. The air conditioner according to claim 2, wherein the second half shell and the second split shell are integrally formed. The air conditioner according to claim 2, wherein the first split shell includes a first bottom plate and a first enclosure plate arranged at an 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 an edge of the second bottom plate, and the second mounting portion is opened on the second bottom plate. The air conditioner according to claim 4, wherein the second half shell includes a third bottom plate and a third surrounding plate arranged at an edge of the third bottom plate. 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 the third enclosure is provided with a receiving groove for the first enclosure to be plugged in. 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 by a connecting module. The air conditioner according to claim 7, wherein the connection module comprises 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. 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 provided 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. 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.