WO2025030741A1 - Air conditioner - Google Patents

Abstract

Provided is an air conditioner. The air conditioner comprises an outdoor unit and an indoor unit. The indoor unit comprises a casing, an indoor heat exchanger, a first fan, a volute body, a first housing, a second housing, a second fan, a first drive shaft, a shaft hole, a first motor, a ventilation housing, a guide rail, a baffle, a first stopper, a second stopper and a third stopper. The casing comprises a first air inlet and a first air outlet, the first air inlet and the first air outlet respectively extending in the length direction of the casing. The indoor heat exchanger is arranged inside the casing, and the first fan is arranged inside the casing and located below the indoor heat exchanger, the first fan extending in the length direction of the casing. By means of the operation of the first fan, indoor air is drawn into the casing via the first air inlet, and then flows into a room via the first air outlet after being subjected to heat exchange by means of the indoor heat exchanger. The volute body is arranged inside the casing.

Description

Air Conditioner

This application claims the priority of application number CN202322668132.9, filed on September 28, 2023; and the priority of application number CN202322148042.7, filed on August 10, 2023; and the priority of application number CN202322153846.6, filed on August 10, 2023; and the priority of application number CN202322095782.9, filed on August 4, 2023; and the priority of application number CN202322100205.4, filed on August 4, 2023; and the priority of Chinese patent application filed on December 8, 2023, with application number 202323345620.2, the entire contents 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

With the improvement of living standards, based on people's demand for body temperature comfort, air conditioners have entered thousands of households and become essential appliances in people's daily lives. During the operation of the air conditioner, the refrigerant needs to circulate in the refrigerant circulation pipeline between the outdoor unit and the indoor unit.

Summary of the invention

An air conditioner is provided, the air conditioner comprising an outdoor unit and an indoor unit. The indoor unit comprises a casing, an indoor heat exchanger, a first fan, a volute body, a first shell, a second shell, a second fan, a first drive shaft, an axial hole, a first motor, a ventilation casing, a guide rail, a baffle, a first block, a second block and a third block. The casing comprises a first air inlet and a first air outlet, and the first air inlet and the first air outlet extend along the length direction of the casing respectively. The indoor heat exchanger is arranged in the casing. The first fan is arranged in the casing and is located below the indoor heat exchanger; the first fan extends along the length direction of the casing; the indoor air is introduced into the casing from the first air inlet through the operation of the first fan, and after heat exchange in the indoor heat exchanger, it flows into the room from the first air outlet. The volute body is arranged in the casing; the volute body and the first fan are arranged along the length direction of the casing, and the volute body comprises a first shell and a second shell. The first shell comprises a second air outlet. The second shell is arranged on a side of the first shell away from the first fan. The second fan is arranged in the volute body and is configured to introduce outdoor fresh air into the room. The first drive shaft is configured to connect the first fan and the second fan. The rotation axis of the first drive shaft, the rotation axis of the first fan and the rotation axis of the first fan are coaxially arranged. The shaft hole is arranged in the volute body, and the first drive shaft passes through the shaft hole; the diameter of the shaft hole is less than or equal to 1.5 times the diameter of the first drive shaft. The first motor is arranged at one end of the second fan away from the first fan, the first motor drives the second fan to rotate, and the second fan drives the first fan to rotate through the first drive shaft. The ventilation shell is arranged on a side of the second shell away from the first shell, and the ventilation shell includes a second air inlet and a purification air inlet. The guide rail is arranged in at least one of the ventilation shell or the second shell. The baffle cooperates with the guide rail to slide along the guide rail. The first stopper, the second stopper and the third stopper are arranged between the ventilation shell and the second shell, and the third stopper is located between the purified air inlet and the second air inlet. When the baffle plate slides to abut against the first stopper, the third stopper abuts against the baffle plate, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet. When the baffle plate slides to abut against the second stopper, the third stopper abuts against the baffle plate, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG2 is a schematic diagram of an overall structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG3 is another overall structural schematic diagram of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG4 is a schematic diagram of an internal structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG5 is a schematic diagram of the installation position of a first motor of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG6 is a schematic structural diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG7 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG8 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG9 is a schematic diagram of an internal structure of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG10 is a side view of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG11 is a cross-sectional view taken along the line A1-A1 in FIG10 ;

FIG12 is an axonometric cross-sectional view taken along the line A1-A1 in FIG10 ;

FIG13 is a schematic diagram of an internal structure of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG14 is a schematic diagram of an installation position of a baffle of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG15 is a schematic diagram of an internal structure of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG16 is a schematic diagram of the internal structure of a ventilation housing of an air conditioner indoor unit according to one embodiment of the present disclosure;

17 is a schematic diagram of a baffle of an air conditioner indoor unit according to one embodiment of the present disclosure when it is located at a first position;

18 is a schematic diagram of a baffle of an air conditioner indoor unit according to one embodiment of the present disclosure when it is located at a second position;

19 is a schematic diagram of a baffle of an air conditioner indoor unit according to one embodiment of the present disclosure when it is located at a third position;

20 is a schematic diagram of a first spacing when a baffle of an air conditioner indoor unit according to one embodiment of the present disclosure is located at a second position;

21 is a schematic diagram of a second spacing when the baffle of the air conditioner indoor unit according to one embodiment of the present disclosure is located at a third position;

22 is a schematic diagram of a connection structure between a first fan and a second fan of an indoor unit of an air conditioner according to one embodiment of the present disclosure;

23 is a schematic diagram of another connection structure of a first fan and a second fan of an indoor unit of an air conditioner according to one embodiment of the present disclosure;

FIG24 is a schematic diagram of a bearing structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG25 is a schematic structural diagram of a bearing ball of an air conditioner indoor unit according to one embodiment of the present disclosure;

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

FIG27 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG28 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG29 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG30 is a front view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG31 is a schematic diagram of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

Fig. 32 is an enlarged view of portion A in Fig. 31;

FIG33 is a side view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

Fig. 34 is a cross-sectional view taken along the direction A2-A2 in Fig. 33;

FIG35 is a front view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

Fig. 36 is a cross-sectional view taken along the line A3-A3 in Fig. 35;

FIG37 is a cross-sectional view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG38 is an exploded view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG39 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG40 is an exploded view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG41 is a schematic structural diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG42 is a side view of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG43 is a schematic structural diagram of a first fan of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG44 is a schematic diagram of the overall structure of an air conditioner according to one embodiment of the present disclosure;

FIG45 is a schematic diagram of an overall structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG46 is another overall structural schematic diagram of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG47 is a schematic diagram of another internal structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG48 is a schematic diagram of another internal structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG49 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG50 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG51 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG52 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG53 is another structural schematic diagram of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG54 is a cross-sectional view taken along line A4-A4 in FIG53;

FIG55 is another cross-sectional view taken along the line A4-A4 in FIG53;

FIG56 is a schematic diagram of the disassembled structure of a fresh air module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG57 is a schematic diagram of the installation position of a baffle of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG58 is a schematic structural diagram of a ventilation housing of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG59 is a schematic diagram of the structural installation of a purification module of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG60 is a schematic diagram of the structure of an air conditioner indoor unit without a purification module according to one embodiment of the present disclosure;

FIG61 is a schematic diagram of a connection structure between a first fan and a second fan of an indoor unit of an air conditioner according to one embodiment of the present disclosure;

FIG62 is a schematic diagram of another connection structure of a first fan and a second fan of an indoor unit of an air conditioner according to one embodiment of the present disclosure;

FIG63 is a schematic diagram of a bearing structure of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG64 is a schematic structural diagram of a bearing ball of an air conditioner indoor unit according to one embodiment of the present disclosure;

FIG65 is a schematic diagram of the internal structure of a bearing of an indoor unit of an air conditioner according to one embodiment of the present disclosure;

FIG66 is a schematic diagram of the overall structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG67 is a front view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG68 is a side view of a wall-mounted air conditioner according to an embodiment of the present disclosure;

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

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

FIG71 is a front view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG72 is a top view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 73 is a side view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

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

FIG. 75 is a schematic diagram of an overall structure of a volute body according to an embodiment of the present disclosure;

FIG. 76 is another overall structural schematic diagram of the volute body according to an embodiment of the present disclosure;

FIG. 77 is a side view of a volute body portion according to an embodiment of the present disclosure;

FIG. 78 is a front view of a volute body portion according to an embodiment of the present disclosure;

FIG. 79 is a cross-sectional view of a volute body portion according to an embodiment of the present disclosure;

FIG80 is an exploded view of a volute body portion according to an embodiment of the present disclosure;

FIG81 is another exploded view of the volute body portion according to an embodiment of the present disclosure;

FIG82 is another exploded view of the volute body portion according to an embodiment of the present disclosure;

FIG83 is another exploded view of the volute body portion according to an embodiment of the present disclosure;

FIG84 is another exploded view of the volute body portion according to an embodiment of the present disclosure;

FIG85 is another exploded view of the volute body portion according to an embodiment of the present disclosure;

FIG86 is a flowchart of a wall mounted air conditioner according to an embodiment of the present disclosure;

FIG87 is a flowchart of a wall mounted air conditioner according to an embodiment of the present disclosure;

FIG88 is a flowchart of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG89 is another exploded view of the volute body portion according to an embodiment of the present disclosure;

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

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

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

FIG93 is a schematic diagram of the overall structure of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG94 is a bottom view of the internal structure of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG95 is a side view of the internal structure of a wall-mounted air conditioner according to an embodiment of the present disclosure;

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

FIG97 is a bottom view of the volute body portion of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG98 is another exploded view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 99 is another exploded view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG100 is a schematic diagram of the overall structure of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG101 is a top view of the overall structure of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG102 is another exploded view of the volute body of the wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG103 is a partial schematic diagram of a volute body of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG104 is a side view of a volute body portion of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG105 is a schematic diagram of a transmission cavity portion of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG106 is a partial exploded view of a volute body portion of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG. 107 is a flowchart of a wall-mounted air conditioner according to an embodiment of the present disclosure;

FIG108 is a flowchart of a wall mounted air conditioner according to an embodiment of the present disclosure;

Figure 109 is a workflow diagram of the wall-mounted air conditioner according to an 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.

Generally, an air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit. When the air conditioner operates in a cooling mode, the air conditioner performs a refrigeration cycle of the air conditioner indoor unit by using a compressor, an outdoor heat exchanger, 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 conditioned and heat-exchanged air, provides cooling to the indoor space through the heat absorption process of the refrigerant, and achieves temperature regulation of the indoor space.

The compressor compresses the low-temperature and low-pressure refrigerant gas and discharges the high-temperature and high-pressure refrigerant gas, which flows into the outdoor heat exchanger. The outdoor heat exchanger condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the outdoor heat exchanger 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 cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the indoor air.

During the entire refrigeration cycle, the air conditioner indoor unit can adjust the temperature of the indoor space.

When the air conditioner operates in heating mode, the air conditioner performs a heating cycle of the air conditioner indoor unit through the compressor, outdoor heat exchanger, expansion valve and indoor heat exchanger.

The heating cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air, provides heat to the indoor space through the heat release process of the refrigerant, and realizes temperature regulation of the indoor space.

When the heating cycle is running, the compressor compresses the low-temperature and low-pressure refrigerant gas and discharges the high-temperature and high-pressure refrigerant gas, which flows into the indoor heat exchanger. The indoor heat exchanger condenses the compressed refrigerant into a liquid phase, and the heat generated by the condensation is exchanged with the indoor air flowing through the indoor heat exchanger, thereby increasing the indoor temperature.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the outdoor heat exchanger into a low-pressure liquid-phase refrigerant.

The outdoor 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 outdoor heat exchanger may perform heat exchange with outdoor air by utilizing latent heat of evaporation of the refrigerant.

Throughout the heating cycle, the air conditioner indoor unit regulates the temperature of the indoor space.

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

The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner indoor unit functions as a heater in a heating mode, and when the indoor heat exchanger functions as an indoor heat exchanger, the air conditioner indoor unit functions as a cooler in a cooling mode.

In the following full text: The second air outlet is preferably a fresh air outlet, which is configured to output outdoor fresh air.

The second air inlet is preferably a fresh air inlet, configured to input outdoor fresh air.

The first fan is preferably a fresh air fan, configured to drive fresh air.

The first fan is preferably a fresh air fan; the second fan is preferably a heat exchange fan. The installation space is preferably an installation slot; and the plug-in space is preferably a slot.

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

As shown in Figures 1 to 5, in one embodiment of the air conditioner indoor unit of the present invention.

The air conditioner includes an air conditioner indoor unit 100 and an air conditioner outdoor unit 200. The air conditioner outdoor unit 200 is, for example, a wall-mounted fresh air air conditioner outdoor unit.

The air conditioner outdoor unit 200 includes a compressor and an outdoor heat exchanger, the air conditioner indoor unit 100 includes an indoor heat exchanger, and the expansion valve can be provided in the air conditioner indoor unit or the air conditioner outdoor unit.

The air conditioner in some embodiments of the present disclosure includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, an expansion valve, and a pipeline for circulating refrigerant, wherein the indoor heat exchanger and the outdoor heat exchanger are both connected to the compressor. The expansion valve is an electronic expansion valve, which is connected between the indoor heat exchanger and the outdoor heat exchanger and can expand the liquid refrigerant that has undergone a condensation process into a low-pressure liquid refrigerant.

The compressor includes an air intake port and an air exhaust port. The refrigerant that absorbs heat and undergoes an evaporation process enters the compressor from the air intake port. The compressor compresses the gaseous refrigerant into a high-temperature and high-pressure state and then discharges it from the exhaust port.

The indoor heat exchanger and the outdoor heat exchanger are respectively connected to the compressor through a four-way valve in the refrigerant circuit, and the four-way valve includes a first valve port, a second valve port, a third valve port and a fourth valve port. Among them, the air intake port of the compressor is fixedly connected to the first valve port, and the air discharge port of the compressor is fixedly connected to the third valve port.

In the refrigerant circuit, the refrigerant can circulate through the compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger in sequence.

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

3-9 , in some embodiments, the air conditioner indoor unit 100 includes: a casing 1 , a base 2 , an indoor heat exchanger, a second fan 3 , a fresh air module 4 , a first drive shaft 7 , a first motor 5 and a baffle 10 .

The casing 1 forms the overall appearance of the air-conditioning indoor unit 100 , and the indoor heat exchanger, the second fan 3 , the fresh air module 4 , the first driving shaft 7 , the first motor 5 and the baffle 10 are arranged inside the casing 1 .

The air conditioner indoor unit 100 is usually installed at a location such as an indoor wall surface, etc. The air conditioner outdoor unit 200 is usually installed outdoors and is configured to exchange heat with an outdoor environment.

In addition, the air conditioner is equipped with a controller to control the operation of various components in the air conditioner so that the various components of the air conditioner can operate to achieve various predetermined functions of the air conditioner. Among them, the air conditioner is also equipped with a control device. Exemplarily, the control device is specifically configured as a remote controller, which has the function of communicating with the controller using infrared or other communication methods, for example. The remote controller is configured so that the user can perform various controls on the air conditioner and realize the interaction between the user and the air conditioner.

The casing 1 is arranged at the top of the room or the upper space of the room, and the casing 1 has at least a first air inlet 11 and a first air outlet 12, and the first air inlet 11 and the first air outlet 12 extend along the length direction of the casing 1. When the air conditioner indoor unit 100 is installed on a wall, the direction of the air conditioner indoor unit 100 in the horizontal direction parallel to the wall is the length direction of the casing 1, that is, the left and right direction of the casing 1 is the length direction of the casing 1.

The first air inlet 11 is opened at the top of the casing 1, and the first air outlet 12 is opened at the front side of the casing 1 and arranged near the bottom of the casing 1. Indoor air enters the casing 1 through the first air inlet 11 and flows back into the room through the first air outlet 12.

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

The indoor heat exchanger is arranged inside the casing 1, and the refrigerant flowing inside the casing exchanges heat with the indoor air to form a heating cycle or In the refrigeration cycle, the indoor air flows through the indoor heat exchanger and then flows to the outside of the casing 1 through the first air outlet 12 .

The second fan 3 is arranged in the heat exchange air duct 21 inside the housing 1 and is located below the indoor heat exchanger. The second fan 3 extends along the length direction of the housing 1. The second fan 3 can be a cross-flow fan. When the second fan 3 is started, the indoor air is introduced into the housing 1 from the first air inlet 11 by the drive of the second fan 3, and after heat exchange in the indoor heat exchanger, it flows into the room from the first air outlet 12. The second fan 3 is configured to provide power for the indoor air to flow from the first air inlet 11 through the housing 1 to the first air outlet 12.

Indoor air enters the casing 1 through the first air inlet 11, exchanges heat with the indoor heat exchanger, and then flows out from the first air outlet 12 on the casing 1 to the indoor space, thereby supplying indoor air.

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

The volute body 41 is arranged inside the casing 1 and arranged along the length direction of the casing 1 with the second fan 3, and the volute body 41 at least includes a second air outlet 413. The ventilation shell 42 and the volute body 41 are arranged along the length direction of the casing 1, and the ventilation shell 42 at least includes a second air inlet.

The volute body 41 and the ventilation shell 42 are connected. After the volute body 41 and the ventilation shell 42 are connected, a fresh air cavity communicating with the second air inlet 421 and the second air outlet 413 is formed.

The first fan 8 is disposed in the fresh air cavity, and the first fan 8 is correspondingly disposed inside the volute body 41. The first fan 8 can be a centrifugal fan. When the first fan 8 is started, outdoor air is introduced into the fresh air cavity through the second air inlet 421, and flows into the room through the second air outlet 413 after passing through the first fan 8. The first fan 8 is configured to provide power for the fresh air to flow from the second air inlet 421 to the second air outlet 413.

The air conditioner indoor unit 100 also includes a fresh air duct connecting the indoor and outdoor areas. The fresh air duct is inserted into the duct installation hole opened on the wall. One end of the fresh air duct faces the indoor area and is connected to the second air inlet 421 of the fresh air module 4. The other end of the fresh air duct faces the outdoor area and is provided with an air inlet. The fresh air duct is connected to the outdoor area through the air inlet. Under the action of the fresh air fan, the outdoor fresh air enters the indoor fresh air module 4 from the outdoor area along the fresh air duct and is blown into the indoor area from the second air outlet 413, thereby introducing the outdoor fresh air into the indoor area.

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

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

The air conditioner also includes a controller, which refers to a device that can generate an operation control signal according to the instruction operation code and the timing signal to instruct the air conditioner to execute the control instruction. For example, in response to receiving a power-on or power-off instruction issued by a user, the controller can execute an operation related to the object selected by the power-on or power-off instruction.

The first drive shaft 7 is disposed between the first fan 8 and the second fan 3, and the first drive shaft 7 is configured to connect the first fan 8 and the second fan 3, and the rotation axis of the first drive shaft 7 is coaxially arranged with the rotation axis of the first fan 8 and the rotation axis of the second fan 3. In the indoor unit of the air conditioner, the number of the first motor 5 is, for example, one, and is configured to drive the second fan 3 and the first fan 8 to operate synchronously. The first motor 5 can be a single-axis motor or a double-axis motor.

When the first motor 5 is a single-axis motor, the first motor 5 is connected to the end of the second fan 3 away from the first fan 8, the motor output shaft of the first motor 5 is connected to the second fan 3, and the first motor 5 drives the second fan 3 to rotate, so that the second fan 3 drives the first fan 8 to rotate synchronously through the first drive shaft 7. When the first motor 5 is a dual-axis motor, the first motor 5 includes a first motor shaft and a second motor shaft, the first motor shaft and the second motor shaft are coaxially arranged, the first motor shaft is connected to the second fan 3, and the second motor shaft is connected to the first fan 8, so that the first motor 5 can drive the second fan 3 and the first fan 8 to rotate synchronously.

It should be noted that when the first motor 5 is a single-axis motor, the first motor 5 is located at one end of the first fan 4 along the length direction of the casing 1; when the first motor 5 is a dual-axis motor, the first motor 5 is located between the first fan 4 and the first fan 8 along the length direction of the casing 1.

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

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

The second shell 412 is provided with an air inlet 414, and the fresh air outlet is connected to the air inlet 414, so that the indoor air entering the ventilation shell 42 through the second air inlet 421 enters the volute through the air inlet 414, and is driven by the first fan 8 in the volute body 41 to be discharged from the second air outlet. 413 enters the room.

In some embodiments, a first buckle 43 is provided on the outer wall of the first shell 411, and a first hook 45 is provided on the outer wall of the second shell 412 connected to the first shell 411, and the first hook 45 is buckled into the first buckle 43 to fix the second shell 412 and the first shell 411. Further, the first shell 411 and the second shell 412 are connected and fixed by a fixing member, and the fixing member is a screw, and the first shell 411 and the second shell 412 are penetrated by the screw to further fix the first shell 411 and the second shell 412. It can be set that the first hook 45 can also be provided on the outer wall of the first shell 411, and the first buckle 43 can also be provided on the outer wall of the second shell 412.

The ventilation shell 42 is connected to the side of the second shell 412 away from the first shell 411, and a second hook 46 is also provided on the outer wall of the second shell 412 connected to the ventilation shell 42, and a second buckle 44 is provided on the outer wall of the ventilation shell 42 connected to the second shell 412, and the second hook 46 is buckled into the second buckle 44 to fix the second shell 412 to the ventilation shell 42, and the second air inlet 421 is connected to the air inlet 414. The second shell 412 and the ventilation shell 42 are connected and fixed by a fixing member, and the fixing member is a screw, and the second shell 412 and the ventilation shell 42 are penetrated by the screw to achieve further fixation of the second shell 412 and the ventilation shell 42. It can be provided that the first buckle 43 can also be provided on the outer wall of the second shell 412 connected to the ventilation shell 42, and the first hook 45 can also be provided on the outer wall of the ventilation shell 42 connected to the second shell 412.

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

The purification module includes a purification frame 9 and a filter screen. The filter screen is arranged on the purification frame 9. The filter screen is configured to filter and purify outdoor fresh air and indoor air to prevent impurities and flocs mixed in the fresh air from entering the room with the air through the volute.

A third guide rail 4111 is provided in the fresh air module 4, and the third guide rail 4111 is provided on the second shell 412. The third guide rail 4111 extends from the inside of the ventilation shell 42 to the purification port 416. The purification frame 9 can be inserted into the second shell 412 along the third guide rail 4111 to realize the sliding disassembly and installation of the purification module, so that users can disassemble, clean and replace the filter by themselves.

9 to 21 , in some embodiments, the air conditioner further comprises a guide rail, which is disposed on at least one of the ventilation shell 42 or the second shell 412. A baffle 10 is disposed between the ventilation shell 42 and the second shell 412, and the baffle 10 cooperates with the guide rail so that the baffle 10 can slide along the guide rail.

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

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

In the present disclosure, when the user does not want to introduce fresh air into the room, but only wants to turn on the second fan 3 to heat the indoor air, the baffle 10 slides to close the second air inlet 421 to avoid introducing fresh air into the room. At this time, the second fan 3 is turned on and rotated, thereby driving the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives the indoor air to enter the volute body 41 through the purified air inlet 429, and the indoor air entering the volute body 41 is discharged to the room through the second air outlet 413, thereby avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates.

In some embodiments, the first stopper 111 includes a first main stopper 1111 and a first auxiliary stopper 1112. The first main stopper 1111 is integrally formed with the ventilation shell 42, and the first auxiliary stopper 1112 is integrally formed with the second shell 412. The second stopper 112 is disposed on a side of the second shell 412 away from the first shell 411. The second stopper 112 includes a second main stopper 1121 and a second auxiliary stopper 1122. The second main stopper 1121 is integrally formed with the ventilation shell 42, and the second auxiliary stopper 1122 is integrally formed with the second shell 412.

When the ventilation shell 42 is connected to the second shell 412, the first main stopper 1111 abuts against the first auxiliary stopper 1112, and the second main stopper 1121 abuts against the second auxiliary stopper 1122. When the baffle 10 slides to abut against the first stopper 111, the baffle 10 abuts against the third stopper 113. At this time, the first stopper 111, the baffle 10, the third stopper 113, the ventilation shell 42 and the second shell 412 are surrounded, so that the purified air inlet 429 is separated from the second air outlet 413, thereby improving the sealing and partitioning effect. At this time, the second stopper 112 does not abut against the baffle 10, so that the second air inlet 421 is connected to the second air outlet 413. The fresh air enters the fresh air module 4 from the outside under the drive of the first fan 8, and finally flows into the room through the second air outlet 413.

When the baffle 10 slides to abut against the second block 112, the block abuts against the third block 113. At this time, the second block 112, the baffle 10, the third block 113, the ventilation shell 42 and the second shell 412 are surrounded, so that the second air inlet 421 is separated from the second air outlet 413, thereby providing a sealing and partitioning effect to prevent outdoor fresh air from entering the room. At this time, the first block 111 does not abut against the baffle 10, so that the net The purified air inlet 429 is connected to the second air outlet 413. Driven by the first fan 8, the indoor air enters the fresh air module 4 through the purified air inlet 429 and finally flows into the room through the second air outlet 413.

In some embodiments, the first stopper 111 can be integrally formed with the ventilation shell 42, or the first stopper 111 can be integrally formed with the second shell 412. The second stopper 112 can be integrally formed with the ventilation shell 42, or the second stopper 112 can be integrally formed with the second shell 412.

In some embodiments, the guide rail includes: a first guide rail and a second guide rail, the first guide rail is arranged on the ventilation shell 42, and the first guide rail is arranged in an arc shape, the second guide rail is arranged on the second shell 412, and the second guide rail is arranged in an arc shape corresponding to the first guide rail, and the opposite ends of the baffle 10 are respectively inserted into the first guide rail and the second guide rail, so that the baffle 10 can slide along the first guide rail and the second guide rail.

In some embodiments, the baffle 10 is configured to be an arc shape that is compatible with the first guide rail and the second guide rail, and the opposite ends of the baffle 10 are respectively connected to the first guide rail and the second guide rail to facilitate the baffle 10 to slide along the first guide rail and the second guide rail, thereby reducing the movement stroke of the baffle 10 in the linear direction and improving the space utilization within the ventilation shell 42 and the second shell 412.

The position where the baffle 10 is located is defined to be provided with a first position, a second position and a third position, and the baffle 10 can slide from the first position to the second position and the third position in sequence along the guide rail; when the baffle 10 slides to the first position, the baffle 10 abuts against the first block 111, and the baffle 10 abuts against the third block 113. At this time, the first block 111, the baffle 10, the third block 113, the ventilation shell 42 and the second shell 412 are surrounded, so as to separate the purified air inlet 429 from the second air outlet 413, thereby improving the sealing and partitioning effect. At this time, the second block 112 does not abut against the baffle 10, so that the second air inlet 421 is connected to the second air outlet 413. The fresh air enters the fresh air module 4 from the outside under the drive of the first fan 8, and finally flows into the room through the second air outlet 413.

When the baffle 10 slides to the second position, the baffle 10 abuts against the second block 112, and the block abuts against the third block 113. At this time, the second block 112, the baffle 10, the third block 113, the ventilation shell 42 and the second shell 412 are arranged to surround each other, thereby separating the second air inlet 421 from the second air outlet 413, thereby providing a sealing and partitioning effect to prevent outdoor fresh air from entering the room. At this time, the first block 111 does not abut against the baffle 10, so that the purified air inlet 429 is connected to the second air outlet 413, and the indoor air enters the fresh air module 4 through the purified air inlet 429 under the drive of the first fan 8, and finally flows into the room through the second air outlet 413.

When the baffle 10 slides to the third position, the baffle 10 abuts against the second block 112, and the block abuts against the third block 113. At this time, the second block 112, the baffle 10, the third block 113, the ventilation shell 42 and the second shell 412 are surrounded, so that the second air inlet 421 is separated from the second air outlet 413, thereby providing a sealing and separation effect to prevent outdoor fresh air from entering the room. At this time, the first block 111 does not abut against the baffle 10, so that the purified air inlet 429 is connected to the second air outlet 413, and the indoor air enters the fresh air module 4 through the purified air inlet 429 under the drive of the first fan 8, and finally flows into the room through the second air outlet 413.

In some embodiments, when the baffle 10 slides to the second position, the shortest distance between the second stopper 112 and the baffle 10 is defined as the first distance a, and when the baffle 10 slides to the third position, the shortest distance between the second stopper 112 and the baffle 10 is defined as the second distance b, and the first distance a is smaller than the second distance b. It can be set that the value range of the first distance a is not greater than 10 mm.

When the user does not want to introduce fresh air into the room, but only wants to turn on the first fan to exchange heat for the indoor air, the baffle 10 slides to the third position to close the second air inlet 421 to avoid introducing fresh air into the room. At this time, the opening and rotation of the first fan drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives the indoor air to enter the volute body through the purified air inlet 429. The indoor air entering the volute body passes through the first spacing a between the baffle 10 and the first block 111, and then is discharged to the room through the second air outlet 413, avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates, and meeting the function of maintaining the internal air flow pressure of the fresh air module 4 stable.

In some embodiments, an air suction vent 415 is disposed on the baffle mounting plate 47 , and the air suction vent 415 is disposed opposite to the air suction port 414 , so that air can flow to the air suction port 414 through the air suction vent 415 , and then flow into the room through the second air outlet 413 .

The guide rail is arranged on the baffle mounting plate 47 at the outer edge of the air suction port 415, and the guide rail is arranged around the air suction port 415. The guide rail is provided with a first limiting portion 114 and a second limiting portion 115. When the baffle 10 slides to the first position, the baffle 10 abuts against the first limiting portion 114, so that the sliding stroke of the baffle 10 is limited by the first limiting portion 114. When the baffle 10 slides to the second position, the baffle 10 abuts against the second limiting portion 115. The baffle 10 abuts against the second limiting portion 115, so that the sliding stroke of the baffle 10 is limited by the second limiting portion 115.

In some embodiments, the air conditioning indoor unit 100 further includes: a second motor 103 and a gear 102 .

The second motor 103 is fixedly connected to the ventilation housing 42. The gear 102 is rotatably connected to the second housing 412, and the output shaft of the second motor 103 is connected to the rotating shaft of the gear 102.

The baffle 10 is provided with a rack portion 101 . The rack portion 101 is provided on a side of the baffle 10 close to the gear 102 . The rack portion 101 is meshed with the gear 102 . The rack portion 101 is extended in the reciprocating sliding direction of the baffle 10 .

The output shaft of the second motor 103 rotates to drive the gear 102 to rotate, and the gear 102 meshes with the rack portion 101 to drive the baffle 10 to move forward. The baffle 10 slides back and forth to open or close the second air inlet 421.

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

When the fresh air function is turned on, the second motor 103 drives the gear 102 to rotate forward, and the gear 102 engages with the rack part 101 to drive the baffle 10 to slide, and drives the baffle to move along the first guide rail 423, so that the baffle abuts against the first block and the third block to open the second air inlet, thereby controlling the outdoor fresh air to enter the room.

When the fresh air function is turned off, the second motor 103 drives the gear 102 to rotate in the opposite direction, and the gear 102 engages with the rack portion 101 to drive the baffle 10 to slide, and drives the baffle to move along the first guide rail 423, so that the baffle abuts against the second block and the third block to close the second air inlet 421 to prevent fresh air from flowing back into the room. At this time, the first fan rotates to drive the indoor air through the purified air inlet and the first distance a, into the fresh air module, and then flows into the room through the second air outlet, avoiding the noise of stalling generated when the first fan rotates.

When the fresh air function is turned off, since the first fan 8 is connected to the second fan 3 through the first drive shaft 7, when the second fan 3 rotates, the first fan 8 rotates synchronously. When the user does not want to introduce fresh air into the room, but only wants to turn on the second fan 3 to exchange heat with the indoor air, the baffle 10 slides to close the second air inlet 421 to avoid introducing fresh air into the room. At this time, the opening and rotation of the second fan 3 drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives the indoor air to enter the volute body 41 through the purified air inlet and the first spacing a, and the indoor air entering the volute body 41 is discharged to the room through the second air outlet 413, avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates.

In some embodiments, a first avoidance portion 425 is provided on the outer side wall of the ventilation shell 42 connected to the second shell 412, and a second avoidance portion 426 is provided at the connection of the second shell 412 connected to the ventilation shell 42. After the ventilation shell 42 is connected to the second shell 412, the first avoidance portion 425 is connected to the second avoidance portion 426 to form an avoidance groove, at least part of the rack is disposed in the avoidance groove, the avoidance groove is disposed on one side of the fresh air inlet, and the rack is driven by the second motor 103 to reciprocate in the avoidance groove.

Referring to Figures 22-26, in some embodiments, the central portion of the first fan 8 is provided with an axial connection portion 81, and the axial connection portion 81 is configured to connect to the first drive shaft 7, and the end of the first drive shaft 7 away from the second fan 3 is inserted into the interior of the axial connection portion 81 to connect to the axial connection portion 81.

A connecting hole 417 is provided on the first shell 411 of the volute body 41, the connecting hole 417 is communicated with the interior of the volute body 41, the connecting hole 417 is provided corresponding to the shaft connecting portion 81, and the opening of the connecting hole 417 faces the second fan 3. The first drive shaft 7 passes through the connecting hole 417 and is provided in the shaft hole, so that the first drive shaft 7 is connected to the first fan 8, and the first fan 8 is driven to rotate synchronously through the rotation of the first drive shaft 7.

In some embodiments, a bearing 6 is disposed in the housing 1 , the first drive shaft 7 cooperates with the bearing 6 and passes through the bearing 6 , the first drive shaft 7 is movably connected to the bearing 6 , and the bearing 6 is configured to support the first drive shaft 7 to rotate.

The bearing 6 includes a bearing body 61 and a bearing ball 62. The bearing 6 is provided with a connecting cavity 611. The connecting cavity 611 is arranged through the bearing body 61 and the bearing ball 62. The openings at both ends of the connecting cavity 611 are arranged toward the first fan 8 and the second fan 3 respectively. The first drive shaft 7 is arranged through the connecting cavity 611. It should be noted that an installation space 612 is arranged in the bearing body 61. The installation space 612 is connected to the connecting cavity 611 and is arranged close to the second fan 3. The bearing ball 62 is arranged in the installation space 612.

As shown in Figures 27 to 36, in some embodiments, the wall-mounted air conditioner includes: a shell 220, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300, a connecting shaft 110, an axial hole 210 and a first motor 500, wherein the shell 220 is provided with a first inner cavity and a second inner cavity along the length direction; an air conditioning air inlet is provided at the top of the shell 220, and an air conditioning air outlet is provided at the front bottom of the shell 220; 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 400 is provided in the first inner cavity, and the second fan 400 is provided below the indoor heat exchanger; the indoor airflow is provided at the second fan 400 Under the action of, the air enters the shell 220 through the air-conditioning air inlet, and is output to the indoor room through the air-conditioning outlet after being heat exchanged by the indoor heat exchanger; the volute body 700 is arranged in the second inner cavity, and the volute body 700 is provided with a second air inlet and a second air outlet 720; the first fan 300 is arranged in the volute body 700; the first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously; one end of the connecting shaft 110 is connected to the first fan 300, and the other end of the connecting shaft 110 is connected to the second fan 400 or the first motor 500; the shaft hole 210 is opened in the volute body 700, and the shaft hole 210 is configured for the connecting shaft 110 to pass through; the diameter of the shaft hole 210 does not exceed 1.5 times the diameter of the connecting shaft 110.

By means of the above scheme, the diameter ratio of the shaft hole 210 and the connecting shaft 110 is limited, thereby ensuring that the first motor 500 passes through the connecting shaft 110. When the shaft 110 drives the first fan 300 to rotate, the connecting shaft 110 will not come into contact with the shaft hole 210 to cause vibration and noise, and under this proportional relationship, the overall sealing of the volute body 700 is still guaranteed to reduce air leakage.

Referring to FIG. 37 , in some embodiments, the diameter of the connecting shaft 110 is D1 , the diameter of the shaft hole 210 is D2 , and D2 < 1.5D1 .

Referring to FIGS. 27 to 43 , in some embodiments, the shaft hole 210 is a circular hole, and the axis of the connecting shaft 110 is colinear with the axis of the circular hole, so as to ensure that the distance between the peripheral wall of the connecting shaft 110 and the inner peripheral wall of the circular hole is the same in all directions in a stationary state, so as to ensure that when the first motor 500 drives the connecting shaft 110 to rotate, the distance between the connecting shaft 110 and the peripheral wall is uniform under the action of the excitation vibration, so as to prevent the connecting shaft 110 from touching the volute body 700 to generate vibration and noise.

In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740 . The first split shell 730 is disposed on a side of the second split shell 740 close to the second fan 400 . The shaft hole 210 is opened in the first split shell 730 .

In some embodiments, the shaft hole 210 is opened on the side of the first split shell 730 facing the second fan 400. The side of the first split shell 730 facing the second fan 400 is perpendicular to the axis of the second fan 400, and the shaft hole 210 is coaxial with the second fan 400.

In some embodiments, the first split shell 730 includes a third half shell 731 and a fourth half shell 732, the third half shell 731 is provided with a first mounting portion 211, the fourth half shell 732 is provided with a second mounting portion 212, and when the third half shell 731 and the fourth half shell 732 are spliced, the first mounting portion 211 and the second mounting portion 212 form a shaft hole 210. During the production process, a clamping ring is generally provided on the connecting shaft 110, and the position of the first fan 300 is limited by the clamping ring, and the diameter of the clamping ring is usually large. And because the clamping ring needs to be installed on the connecting shaft 110 by special equipment, the clamping ring needs to be installed on the connecting shaft 110 before the connecting shaft 110 passes through the shaft hole 210. Through this solution, during installation, the first mounting portion 211 and the second mounting portion 212 correspond to the connecting shaft 110 respectively, and the third half shell 731 and the fourth half shell 732 can be directly snapped onto the connecting shaft 110. The retaining ring does not need to pass through the shaft hole 210, so the diameter of the shaft hole 210 is not limited by the diameter of the retaining ring. This ensures the relationship between the diameter of the shaft hole 210 and the diameter of the connecting shaft 110 while facilitating the installation of the volute body 700.

In some embodiments, the first mounting portion 211 is a semicircular through slot that penetrates the side wall of the third half shell 731 close to the second fan 400; the second mounting portion 212 is a semicircular through slot that penetrates the side wall of the fourth half shell 732 close to the second fan 400. After the third half shell 731 and the fourth half shell 732 are spliced to form the first split shell 730, the first mounting portion 211 and the second mounting portion 212 are spliced to form the shaft hole 210.

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

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

In some embodiments, the circumference of the peripheral wall of the first mounting portion 211 is the same as the circumference of the peripheral wall of the second mounting portion 212 .

27 to 43, in some embodiments, the third half shell 731 is close to the top of the housing 220, and the fourth half shell 732 is close to the top of the housing 220. During the installation process, the connecting shaft 110 is placed in the fourth installation portion of the fourth half shell 732, and then the third half shell 731 and the fourth half shell 732 are buckled, and the connecting shaft 110 is directly located in the shaft hole 210 formed by the splicing of the third installation portion and the fourth installation portion.

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 arranged at one end of the first half shell 741 facing the second fan 400, the first split shell 730 is arranged on a side of the second half shell 742 away from the first half shell 741, and the first fan 300 is arranged between the first split shell 730 and the second half shell 742.

In some embodiments, the third half shell 731 and the fourth half shell 732 are disposed on a side of the second half shell 742 close to the second fan 400. A first fresh air cavity is formed between the third half shell 731, the fourth half shell 732 and the second half shell 742, and the first fan 300 is disposed in the first fresh air cavity; the second air outlet 720 is connected to the first fresh air cavity. Under the action of the first fan 300, the outdoor air flow enters the first fresh air cavity and is output through the second air outlet 720.

In some embodiments, the first half shell 741 and the second half shell 742 form a second fresh air cavity, and a ventilation channel is opened on the second half shell 742 to realize the connection between the first fresh air cavity and the second fresh air cavity, and the second air inlet is connected to the second fresh air cavity; under the action of the first fan 300, the outdoor air enters the second fresh air cavity through the second air inlet, and the fresh air flow enters the first fresh air cavity through the ventilation channel and is output to the room through the second air outlet 720.

In some embodiments, a baffle is disposed on the volute body 700, and the baffle is configured to open or close the second air inlet.

In some embodiments, a driving member is provided on the volute body 700, and the driving member is configured to drive the baffle to open or close the second air inlet. The driving member includes but is not limited to a motor, a gas rod, and a hydraulic rod.

In some embodiments, the first motor 500 is disposed between the second fan 400 and the first fan 300, and the connecting shaft 110 is the output shaft of the first motor 500. The first motor 500 drives the second fan 400 to rotate, and the second fan 400 drives the first fan 300 to rotate synchronously through the connecting shaft 110, so that one first motor 500 drives the second fan 400 and the first fan 300 to rotate synchronously at the same time.

Referring to FIGS. 27 to 43 , in some embodiments, the first motor 500 is disposed at one end of the second fan 400 away from the first fan 300, the connecting shaft 110 is disposed between the second fan 400 and the first fan 300, and both ends of the connecting shaft 110 are respectively connected to the first fan 300 and the second fan 400. The first motor 500 directly drives the second fan 400 and the first fan 300 on both sides thereof to rotate synchronously through the connecting shaft 110. move.

Please refer to Figures 27 to 43. In addition, the present disclosure further provides a wall-mounted air conditioner, which includes: a housing 220, an indoor heat exchanger, a second fan 400, a volute body 700, a first fan 300, a connecting shaft 110, an axis hole 210 and a first motor 500, wherein the housing 220 is provided with a first inner cavity and a second inner cavity along the length direction; an air conditioning air inlet is provided at the top of the housing 220, and an air conditioning air outlet is provided at the bottom of the front side of the housing 220; 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 the second fan 400 is disposed below the indoor heat exchanger; the indoor airflow enters the housing 220 through the air inlet of the air conditioner under the action of the second fan 400, and is output to the room through the air outlet of the air conditioner after being heat exchanged by the indoor heat exchanger;

The volute body 700 is disposed in the second inner cavity, and a second air inlet and a second 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 drives the second fan 400 and the first fan 300 to rotate synchronously; one end of the connecting shaft 110 is connected to the first fan 300, and the other end of the connecting shaft 110 is connected to the second fan 400 or the first motor 500; the shaft hole 210 is opened in the volute body 700, and the shaft hole 210 is configured for the connecting shaft 110 to pass through; the gap between the connecting shaft 110 and the shaft hole 210 is 2mm~5mm.

Through the above scheme, the size relationship between the shaft hole 210 and the connecting shaft 110 is limited, so as to ensure that when the first motor 500 drives the first fan 300 to rotate through the connecting shaft 110, the connecting shaft 110 will not touch the shaft hole 210 to cause vibration and noise, and under this size relationship, the overall sealing of the volute body 700 is still guaranteed to reduce air leakage.

In some embodiments, the shaft hole 210 is a circular hole, and the axis of the connecting shaft 110 is colinear with the axis of the circular hole. This ensures that the distance between the peripheral wall of the connecting shaft 110 and the inner peripheral wall of the circular hole is the same in all directions in a stationary state, and ensures that when the first motor 500 drives the connecting shaft 110 to rotate, the distance between the connecting shaft 110 and the peripheral wall is uniform under the action of the excitation vibration, so as to avoid the connecting shaft 110 touching the volute body 700 to generate vibration and noise.

In some embodiments, the gap between the connecting shaft 110 and the shaft hole 210 is 3 mm. Through the above solution, under this size, it is ensured that when the first motor 500 drives the first fan 300 to rotate through the connecting shaft 110, the connecting shaft 110 will not touch the shaft hole 210 to cause vibration and noise, and the overall sealing of the volute body 700 is guaranteed to the greatest extent, reducing air leakage.

In some embodiments, the diameter of the shaft hole 210 is 14 mm, and the diameter of the connecting shaft 110 is 8 mm; the single-sided gap between the connecting shaft 110 and the shaft hole 210 is 3 mm. After experiments, under this condition, the rotation speed of the first fan 300 is 700 rpm, and the air volume is 11.34 cubic meters per hour; the rotation speed of the first fan 300 is 860 rpm, and the air volume is 16.01 cubic meters per hour; the rotation speed of the first fan 300 is 980 rpm, and the air volume is 18.6 cubic meters per hour; the rotation speed of the first fan 300 is 1350 rpm, and the air volume is 28.06 cubic meters per hour; the rotation speed of the first fan 300 is 1630 rpm, and the air volume is 34.8 cubic meters per hour. In this way, it is determined that under this size, under the premise of ensuring that the connecting shaft 110 does not touch the shaft hole 210 to generate noise, the impact on the fresh air volume is minimized.

In some embodiments, the gap between the connecting shaft 110 and the shaft hole 210 is the distance between the outer wall of the connecting shaft 110 and the inner wall of the shaft hole 210 along the radial direction of the connecting shaft 110, and the gap between the connecting shaft 110 and the shaft hole 210 is a unilateral gap.

In some embodiments, the volute body 700 includes a first split shell 730 and a second split shell 740 . The first split shell 730 is disposed on a side of the second split shell 740 close to the second fan 400 . The shaft hole 210 is opened in the first split shell 730 .

In some embodiments, the first split shell 730 includes a third half shell 731 and a fourth half shell 732, the third half shell 731 is provided with a first mounting portion 211, the fourth half shell 732 is provided with a second mounting portion 212, and when the third half shell 731 and the fourth half shell 732 are spliced, the first mounting portion 211 and the second mounting portion 212 form a shaft hole 210. During the production process, a clamping ring is generally provided on the connecting shaft 110, and the position of the first fan 300 is limited by the clamping ring, and the diameter of the clamping ring is usually large. And because the clamping ring needs to be installed on the connecting shaft 110 by special equipment, the clamping ring needs to be installed on the connecting shaft 110 before the connecting shaft 110 passes through the shaft hole 210. Through this solution, during installation, the first mounting portion 211 and the second mounting portion 212 correspond to the connecting shaft 110 respectively, and the third half shell 731 and the fourth half shell 732 can be directly snapped onto the connecting shaft 110. The retaining ring does not need to pass through the shaft hole 210, so the diameter of the shaft hole 210 is not limited by the diameter of the retaining ring. This ensures the relationship between the diameter of the shaft hole 210 and the diameter of the connecting shaft 110 while facilitating the installation of the volute body 700.

In some embodiments, the first mounting portion 211 is a semicircular through slot that penetrates the side wall of the third half shell 731 close to the second fan 400; the second mounting portion 212 is a semicircular through slot that penetrates the side wall of the fourth half shell 732 close to the second fan 400. After the third half shell 731 and the fourth half shell 732 are spliced to form the first split shell 730, the first mounting portion 211 and the second mounting portion 212 are spliced to form the shaft hole 210.

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

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

In some embodiments, the circumference of the peripheral wall of the first mounting portion 211 is the same as the circumference of the peripheral wall of the second mounting portion 212 .

In some embodiments, the third half shell 731 is close to the top of the housing 220, and the fourth half shell 732 is close to the top of the housing 220. During the installation process, the connecting shaft 110 is placed in the fourth mounting portion of the fourth half shell 732, and then the third half shell 731 and the fourth half shell 732 are buckled, and the connecting shaft 110 is directly located in the shaft hole 210 formed by the splicing of the third mounting portion and the fourth mounting portion.

As shown in Figures 44 to 48, in one embodiment of the air conditioner indoor unit of the present invention.

The air conditioner includes an air conditioner indoor unit 100 and an air conditioner outdoor unit 200 . The air conditioner outdoor unit 200 is, for example, a wall-mounted fresh air air conditioner outdoor unit 200 .

The air conditioner outdoor unit 200 includes a compressor and an outdoor heat exchanger, the air conditioner indoor unit 100 includes an indoor heat exchanger, and the expansion valve can be provided in the air conditioner indoor unit or the air conditioner outdoor unit.

The air conditioner in some embodiments of the present disclosure includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, an expansion valve, and a pipeline for circulating refrigerant, wherein the indoor heat exchanger and the outdoor heat exchanger are both connected to the compressor. The expansion valve is an electronic expansion valve, which is connected between the indoor heat exchanger and the outdoor heat exchanger and can expand the liquid refrigerant that has undergone a condensation process into a low-pressure liquid refrigerant.

The compressor includes an air intake port and an air exhaust port. The refrigerant that absorbs heat and undergoes an evaporation process enters the compressor from the air intake port. The compressor compresses the gaseous refrigerant into a high-temperature and high-pressure state and then discharges it from the exhaust port.

The indoor heat exchanger and the outdoor heat exchanger are respectively connected to the compressor through a four-way valve in the refrigerant circuit, and the four-way valve includes a first valve port, a second valve port, a third valve port and a fourth valve port. Among them, the air intake port of the compressor is fixedly connected to the first valve port, and the air discharge port of the compressor is fixedly connected to the third valve port.

In the refrigerant circuit, the refrigerant can circulate through the compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger in sequence.

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

Referring to Figures 47 to 59, in some embodiments, the air conditioner indoor unit 100 includes: a casing 1, a base 2, an indoor heat exchanger, a second fan 3, a fresh air module 4, a first drive shaft 7, a first motor 5 and a baffle 10.

The casing 1 forms the overall appearance of the air-conditioning indoor unit 100 , and the indoor heat exchanger, the second fan 3 , the fresh air module 4 , the first driving shaft 7 , the first motor 5 and the baffle 10 are arranged inside the casing 1 .

The air conditioner indoor unit 100 is usually installed at a location such as an indoor wall surface, etc. The air conditioner outdoor unit 200 is usually installed outdoors and is configured to exchange heat with an outdoor environment.

In addition, the air conditioner is equipped with a controller to control the operation of various components in the air conditioner so that the various components of the air conditioner can operate to achieve various predetermined functions of the air conditioner. Among them, the air conditioner is also equipped with a control device. Exemplarily, the control device is specifically configured as a remote controller, which has the function of communicating with the controller using infrared or other communication methods, for example. The remote controller is configured so that the user can perform various controls on the air conditioner and realize the interaction between the user and the air conditioner.

The casing 1 is arranged at the top of the room or the upper space of the room, and the casing 1 has at least a first air inlet 11 and a first air outlet 12, and the first air inlet 11 and the first air outlet 12 extend along the length direction of the casing 1. When the air conditioner indoor unit 100 is installed on a wall, the direction of the air conditioner indoor unit 100 in the horizontal direction parallel to the wall is the length direction of the casing 1, that is, the left and right direction of the casing 1 is the length direction of the casing 1.

The first air inlet 11 is opened at the top of the casing 1, and the first air outlet 12 is opened at the front side of the casing 1 and arranged near the bottom of the casing 1. Indoor air enters the casing 1 through the first air inlet 11 and flows back into the room through the first air outlet 12.

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

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

The second fan 3 is arranged in the heat exchange air duct 21 inside the housing 1 and is located below the indoor heat exchanger. The second fan 3 extends along the length direction of the housing 1. The second fan 3 can be a cross-flow fan. When the second fan 3 is started, the indoor air is introduced into the housing 1 from the first air inlet 11 by the drive of the second fan 3, and after heat exchange in the indoor heat exchanger, it flows into the room from the first air outlet 12. The second fan 3 is configured to provide power for the indoor air to flow from the first air inlet 11 through the housing 1 to the first air outlet 12.

Indoor air enters the casing 1 through the first air inlet 11, exchanges heat with the indoor heat exchanger, and then flows out from the first air outlet 12 on the casing 1 to the indoor space, thereby supplying indoor air.

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

The volute body 41 is arranged inside the casing 1 and arranged with the second fan 3 along the length direction of the casing 1. The volute body 41 includes at least a second outlet The ventilation shell 42 and the volute body 41 are arranged along the length direction of the casing 1 , and the ventilation shell 42 at least includes a second air inlet 421 and a pressure stabilizing hole 422 .

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

The first fan 8 is disposed in the fresh air cavity, and the first fan 8 is correspondingly disposed inside the volute body 41. The first fan 8 can be a centrifugal fan. When the first fan 8 is started, outdoor air is introduced into the fresh air cavity through the second air inlet 421, and flows into the room through the second air outlet 413 after passing through the first fan 8. The first fan 8 is configured to provide power for the fresh air to flow from the second air inlet 421 to the second air outlet 413.

The air conditioner indoor unit 100 also includes a fresh air duct connecting the indoor and outdoor areas. The fresh air duct is inserted into the duct installation hole opened on the wall. One end of the fresh air duct faces the indoor area and is connected to the second air inlet 421 of the fresh air module 4. The other end of the fresh air duct faces the outdoor area and is provided with an air inlet. The fresh air duct is connected to the outdoor area through the air inlet. Under the action of the fresh air fan, the outdoor fresh air enters the indoor fresh air module 4 from the outdoor area along the fresh air duct and is blown into the indoor area from the second air outlet 413, thereby introducing the outdoor fresh air into the indoor area.

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

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

The air conditioner also includes a controller, which refers to a device that can generate an operation control signal according to the instruction operation code and the timing signal to instruct the air conditioner to execute the control instruction. For example, in response to receiving a power-on or power-off instruction issued by a user, the controller can execute an operation related to the object selected by the power-on or power-off instruction.

The first drive shaft 7 is disposed between the first fan 8 and the second fan 3 , and is configured to connect the first fan 8 and the second fan 3 . The rotation axis of the first drive shaft 7 is coaxially disposed with the rotation axis of the first fan 8 and the rotation axis of the second fan 3 .

In the indoor unit of the air conditioner, the number of the first motor 5 is, for example, one, and is configured to drive the second fan 3 and the first fan 8 to operate synchronously. The first motor 5 can be a single-shaft motor or a double-shaft motor.

When the first motor 5 is a single-axis motor, the first motor 5 is connected to the end of the second fan 3 away from the first fan 8, the motor output shaft of the first motor 5 is connected to the second fan 3, and the first motor 5 drives the second fan 3 to rotate, so that the second fan 3 drives the first fan 8 to rotate synchronously through the first drive shaft 7. When the first motor 5 is a dual-axis motor, the first motor 5 includes a first motor shaft and a second motor shaft, the first motor shaft and the second motor shaft are coaxially arranged, the first motor shaft is connected to the second fan 3, and the second motor shaft is connected to the first fan 8, so that the first motor 5 can drive the second fan 3 and the first fan 8 to rotate synchronously.

It should be noted that when the first motor 5 is a single-axis motor, the first motor 5 is located at one end of the first fan 4 along the length direction of the casing 1; when the first motor 5 is a dual-axis motor, the first motor 5 is located between the first fan 4 and the first fan 8 along the length direction of the casing 1.

A baffle 10 is disposed in the fresh air module 4 . The baffle 10 is disposed correspondingly at the second air inlet 421 . The baffle 10 can slide to open or close the second air inlet 421 .

When the user does not want to introduce fresh air into the room, but only wants to turn on the second fan 3 to heat the indoor air, the baffle 10 slides to close the second air inlet 421 to avoid introducing fresh air into the room. At this time, the second fan 3 is turned on and rotated, thereby driving the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives the indoor air to enter the volute body 41 through the pressure stabilizing hole 422, and the indoor air entering the volute body 41 is discharged to the room through the second air outlet 413, thereby avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates.

In some embodiments, the air conditioning indoor unit 100 further includes: a second motor 103 and a gear 102 .

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

The baffle 10 is provided with a rack portion 101 . The rack portion 101 is provided on a side of the baffle 10 close to the gear 102 . The rack portion 101 is meshed with the gear 102 . The rack portion 101 is extended in the reciprocating sliding direction of the baffle 10 .

The output shaft of the second motor 103 rotates to drive the gear 102 to rotate. The gear 102 meshes with the rack portion 101 to drive the baffle 10 to slide back and forth. The baffle 10 slides back and forth to open or close the second air inlet 421 .

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

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

The second shell 412 is provided with an air intake port 414, and the fresh air outlet is connected to the air intake port 414, so that the indoor air entering the ventilation shell 42 through the second air inlet 421 enters the volute through the air intake port 414, and enters the room through the second air outlet 413 driven by the first fan 8 in the volute body 41.

In some embodiments, a first buckle 43 is provided on the outer wall of the first shell 411, and a first hook 45 is provided on the outer wall of the second shell 412 connected to the first shell 411. The first hook 45 is buckled into the first buckle 43 to fix the second shell 412 and the first shell 411.

Furthermore, the first shell 411 and the second shell 412 are connected and fixed by a fixing member, and the fixing member is a screw, and the screw is passed through the first shell 411 and the second shell 412 to further fix the first shell 411 and the second shell 412. Optionally, the outer wall of the first shell 411 may also be provided with a first hook 45, and the outer side wall of the second shell 412 may also be provided with a first buckle 43.

A second hook 46 is also provided on the outer wall of the second shell 412 connected to the ventilation shell 42, and a second buckle 44 is provided on the outer wall of the ventilation shell 42 connected to the second shell 412. The second hook 46 is buckled into the second buckle 44 to fix the second shell 412 to the ventilation shell 42, and the second air inlet 421 is connected to the air intake port 414. The second shell 412 and the ventilation shell 42 are further connected and fixed by a fixing member, and the fixing member is a screw, and the second shell 412 and the ventilation shell 42 are penetrated by the screw to further fix the second shell 412 and the ventilation shell 42. It can be provided that a first buckle 43 can also be provided on the outer wall of the second shell 412 connected to the ventilation shell 42, and a first hook 45 can also be provided on the outer wall of the ventilation shell 42 connected to the second shell 412.

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

In a direction perpendicular to the plane where the second air inlet 421 is located, the second guide rail 424 is set at least partially corresponding to the second air inlet 421, so that when the baffle 10 slides to close the second air inlet 421, in a direction perpendicular to the plane where the second air inlet 421 is located, the baffle 10 is set at least partially corresponding to the second air inlet 421, which is conducive to the baffle 10 closing the second air inlet 421.

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

When the fresh air function is turned on, the second motor 103 drives the gear 102 to rotate forward, and the gear 102 engages with the rack portion 101 to drive the baffle 10 to slide, and the second air inlet is opened by driving the baffle to move along the first guide rail 423, thereby controlling the outdoor fresh air to enter the room.

When the fresh air function is turned off, the second motor 103 drives the gear 102 to rotate in the opposite direction, and the gear 102 engages with the rack part 101 to drive the baffle 10 to slide, and the second air inlet 421 is closed by driving the baffle to move along the first guide rail 423 to prevent fresh air from flowing back into the room, thereby reducing the indoor fresh air noise and wind feeling when the fresh air function is not turned on.

When the fresh air is not turned on, since the first fan 8 is connected to the second fan 3 through the first drive shaft 7, when the second fan 3 rotates, the first fan 8 rotates synchronously. When the user does not want to introduce fresh air into the room, but only wants to turn on the second fan 3 to exchange heat with the indoor air, the baffle 10 slides to close the second air inlet 421 to avoid introducing fresh air into the room. At this time, the opening and rotation of the second fan 3 drives the first fan 8 to rotate synchronously. Since the second air inlet 421 is closed at this time, the rotation of the first fan 8 drives the indoor air to enter the volute body 41 through the pressure stabilizing hole 422, and the indoor air entering the volute body 41 is discharged to the room through the second air outlet 413, avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates.

Referring to FIGS. 56-58 , in some embodiments, a first avoidance portion 425 is provided on the outer side wall of the ventilation shell 42 connected to the second shell 412, and a second avoidance portion 426 is provided at the connection of the second shell 412 connected to the ventilation shell 42. After the ventilation shell 42 is connected to the second shell 412, the first avoidance portion 425 is connected to the second avoidance portion 426 to form an avoidance groove, at least part of the rack is disposed in the avoidance groove, the avoidance groove is disposed on one side of the second air inlet, and the rack is driven by the second motor 103 to reciprocate in the avoidance groove.

56-60, in some embodiments, the ventilation shell 42 is further provided with a first notch 430, and the second shell 412 is further provided with a The second notch 418, after the ventilation shell 42 is connected to the second shell 412, the first notch 430 and the second notch 418 are connected to form a purification port

416 , the purification module is inserted into the fresh air module 4 through the purification port 416 .

The purification module includes a purification frame 9 and a filter screen. The filter screen is arranged on the purification frame 9. The filter screen is configured to filter and purify the fresh air to prevent impurities and flocs mixed in the fresh air from entering the room with the air through the volute. A third guide rail 4111 is arranged in the fresh air module 4. The third guide rail 4111 can be arranged on the ventilation shell 42 or on the second shell 412. The third guide rail 4111 extends from the inside of the ventilation shell 42 to the purification frame 9. The third guide rail 4111 can be inserted into the ventilation shell 42 along the third guide rail 4111, so as to realize the sliding disassembly and installation of the purification module, so that the user can disassemble, clean and replace the filter screen by himself.

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

In some embodiments, the interior of the ventilation shell 42 can be connected to the first air inlet 11 through the pressure-stabilizing hole 422, and then the interior of the ventilation shell 42 is connected to the indoor room through the pressure-stabilizing hole 422, so that the indoor air flows into the fresh air cavity through the pressure-stabilizing hole 422, and the indoor air flows into the indoor room through the second air outlet 413 driven by the first fan 8.

In some embodiments, a pressure-stabilizing through hole is provided on the casing 1, and the pressure-stabilizing through hole is provided on the side of the casing 1, and the pressure-stabilizing through hole can also be provided on the upper or lower part of the casing 1. The pressure-stabilizing through hole is connected with the indoor room, and the pressure-stabilizing through hole is connected with the pressure-stabilizing hole 422 inside the casing 1, so that the indoor air can flow to the pressure-stabilizing hole 422 through the pressure-stabilizing through hole, and enter the fresh air chamber through the pressure-stabilizing hole 422. Driven by the first fan 8, the indoor air flows to the indoor room from the second air outlet 413.

Referring to Figures 53-55, in some embodiments, the central portion of the first fan 8 is provided with an axial connection portion 81, and the axial connection portion 81 is configured to connect to the first drive shaft 7, and the end of the first drive shaft 7 away from the second fan 3 is inserted into the interior of the axial connection portion 81 to connect to the axial connection portion 81.

A connecting hole 417 is provided on the first shell 411 of the volute body 41, the connecting hole 417 is communicated with the interior of the volute body 41, the connecting hole 417 is provided corresponding to the shaft connecting portion 81, and the opening of the connecting hole 417 faces the second fan 3. The first drive shaft 7 passes through the connecting hole 417 and is provided in the shaft hole, so that the first drive shaft 7 is connected to the first fan 8, and the first fan 8 is driven to rotate synchronously through the rotation of the first drive shaft 7.

Referring to Figures 61-65, in some embodiments, a bearing 6 is disposed in the housing 1, the first drive shaft 7 cooperates with the bearing 6 and passes through the bearing 6, the first drive shaft 7 is movably connected to the bearing 6, and the bearing 6 is configured to support the first drive shaft 7 to rotate.

The bearing 6 includes a bearing body 61 and a bearing ball 62. The bearing 6 is provided with a connecting cavity 611. The connecting cavity 611 is arranged through the bearing body 61 and the bearing ball 62. The openings at both ends of the connecting cavity 611 are arranged toward the first fan 8 and the second fan 3 respectively. The first drive shaft 7 is arranged through the connecting cavity 611. It should be noted that an installation space 612 is arranged in the bearing body 61. The installation space 612 is connected to the connecting cavity 611 and is arranged close to the second fan 3. The bearing ball 62 is arranged in the installation space 612.

Referring to FIGS. 48-52 , in some embodiments, the pressure-stabilizing hole 422 is disposed on the ventilation shell 42 on the air inlet side of the first fan 8, and the pressure-stabilizing hole 422 is disposed away from the second air inlet 421, so that when the baffle 10 slides to close the second air inlet 421, the pressure-stabilizing hole 422 is still in an open state. Under the rotation drive of the first fan 8, indoor air can enter the fresh air cavity through the pressure-stabilizing hole 422, and then flow out to the room through the second air outlet 413, thereby avoiding the overload operation of the first fan 8 when the second air inlet 421 is closed by the baffle 10, thereby avoiding the problem of aerodynamic noise when the first fan 8 rotates.

As shown in Figures 66 to 76 and 86, in some embodiments, the wall-mounted air conditioner includes: a shell 220, an indoor heat exchanger, a volute body 280, a first fan 260, a second fan 270, a first motor 230, a baffle 120, a first driving member 340 and a controller; wherein the shell 220 is arranged at the top of the room or above the room; the shell 220 is provided with a first inner cavity and a second inner cavity along the length direction; a first indoor air inlet is provided at the top of the shell 220, and a first indoor air outlet 350 is provided at the front bottom of the shell 220; 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 volute body 280 is arranged in the second inner cavity, and the volute body 280 is provided with a second indoor air inlet 900, a second air inlet 330 and a second indoor air outlet 250; the first fan 260 is arranged in the volute body 280; the second air inlet 330 is provided at the bottom of the front side of the shell 220; the second air inlet 350 is provided at the bottom of the front side of the shell 220; the first fan 260 is arranged in the volute body 28 ... The fan 270 is arranged in the first inner cavity of the shell 220, and the second fan 270 is arranged below the indoor heat exchanger; the indoor air flow enters the shell 220 through the first indoor air inlet and is output from the first indoor air outlet 350 after being heat exchanged by the indoor heat exchanger; the first motor 230 drives the second fan 270 and the first fan 260 to rotate synchronously; the baffle 120 is arranged on the volute body 280; the first driving member 340 is configured to drive the baffle 120 to move so that the baffle 120 opens the second indoor air inlet 900 and closes the second air inlet 330, or closes the second indoor air inlet 900 and opens the second air inlet 330; in the first operating mode, the baffle 120 moves to the position of closing the second indoor air inlet 900 and opening the second air inlet 330; under the action of the rotation of the first fan 260, the outdoor fresh air enters the volute body 280 through the second air inlet 330 and is output through the second indoor air outlet 250; In the operating mode, the baffle 120 moves to a position that closes the second air inlet 330 and opens the second indoor air inlet 900; under the action of the rotation of the first fan 260, the indoor air flow enters the volute body 280 through the second indoor air inlet 900 and is output through the second indoor air outlet 250.

In different modes, the control baffle 120 moves to open or close the second indoor air inlet 900 and the second air inlet 330 to control the flow direction of outdoor fresh air and indoor air flow.

The controller is configured to, upon receiving a first signal, enter a first operating mode, control the baffle 120 to move to a position closing the second indoor air inlet 900 and opening the second air inlet 330; under the action of the rotation of the first fan 260, outdoor fresh air enters the volute body 280 through the second air inlet 330 and is output through the second indoor air outlet 250; upon receiving a second signal, enter a second operating mode, control the baffle 120 to move to a position closing the second air inlet 330 and opening the second indoor air inlet 900; under the action of the rotation of the first fan 260, indoor air flow enters the volute body 280 through the second indoor air inlet 900 and is output through the second indoor air outlet 250.

Through the above scheme, when the fresh air function is not needed, the controller controls the baffle 120 to move and close the second air inlet 330. The indoor air flow enters the second indoor air inlet 900 and is output from the second indoor air outlet 250 under the action of the first fan 260. The air pressure in the volute body 280 is balanced by the indoor air, thereby reducing noise.

In some embodiments, when the user wants to introduce outdoor fresh air into the room, a first signal is sent to the controller through a remote control, mobile phone software, or a control panel to enter the first operating mode.

In some embodiments, when the user does not want to introduce outdoor fresh air into the room, a second signal is sent to the controller through a remote control, mobile phone software, or control panel to enter the second operating mode.

In some embodiments, the first motor 230 is a coaxial motor, one end of the output shaft of which is connected to the second fan 270, and the other end is connected to the first fan 260. In some embodiments, the output shaft of the first motor 230 is connected to the second fan 270, and the second fan 270 is coaxially connected to a transmission shaft, which is connected to the first fan 260.

In some embodiments, the housing 220 is horizontally arranged and hung on a wall, a wall pipe is passed through the wall to communicate with the outside, and one end of the wall pipe located indoors is connected and communicated with the second air inlet 330. The output shaft of the first motor 230 has two output ends, and the second fan 270 and the first fan 260 are coaxially connected to the two output ends of the first motor 230, respectively. In the prior art, the first fan 260 and the second fan 270 are usually driven by two motors respectively, which is relatively expensive. In the present disclosure, only one first motor 230 is needed to realize the rotation of the first fan 260 and the rotation of the second fan 270, saving costs.

In the prior art, when the first motor 230 is running, the second fan 270 and the first fan 260 must rotate synchronously. Therefore, when the user does not want to blow fresh air into the room through the first fan 260, the common practice is to directly close the second air inlet 330 using the anti-backflow device. However, because the first fan 260 must rotate, the first fan 260 continues to rotate in the volute body 280 and outputs airflow through the second indoor air outlet 250, but no fresh air can enter the volute body 280 from the second air inlet 330; therefore, negative pressure is generated in the volute body 280, and the indoor air will generate turbulence at the second indoor air outlet 250 under the action of air pressure, and the outdoor fresh air will continuously hit the anti-backflow device.

In addition, due to the air pressure problem, the resistance of the first fan 260 rotating in the volute body 280 will increase, resulting in the first fan 260 being blocked. The first fan 260 being blocked will cause the first motor 230 to operate overloaded.

In this solution, when the controller receives the second signal, the baffle 120 moves to the second air inlet 330 to close the second air inlet 330, and the second indoor air inlet 900 is opened at this time, and the indoor air enters the volute body 280 through the second indoor air inlet 900 and is input into the room through the second indoor air outlet 250 and the first indoor air outlet 350 under the action of the first fan 260. The indoor air is used to balance the pressure in the volute body 280, which solves the problems of noise, stalling of the first fan 260 and overload operation of the first motor 230, and also increases the output of the indoor air conditioning wind.

Please refer to FIGS. 73 to 85. In some embodiments, a filter 310 is provided in the volute body 280. When the controller receives the second signal, the airflow enters the volute body 280 through the first indoor air inlet and the second indoor air inlet 900, and enters the room through the second indoor air outlet 250 and the first indoor air outlet 350 after being filtered by the filter 310. When the controller receives the first signal, outdoor fresh air enters the volute body 280 through the second air inlet 330, and enters the room through the second indoor air outlet 250 and the first indoor air outlet 350 after being filtered by the filter 310. When the indoor air and the outdoor fresh air enter the room, they will pass through the filter 310 and be filtered by the filter 310. Improve the indoor air quality.

In some embodiments, the filter element 310 divides the interior of the volute body 280 into a second chamber and a first chamber, the second indoor air inlet 900 and the second air inlet 330 are connected to the second chamber, and the second indoor air outlet 250 is connected to the first chamber. Both outdoor fresh air and indoor air enter the second chamber of the volute body 280, and enter the first chamber after being filtered by the filter element 310 and pass through the second indoor air outlet 250 and The first indoor air outlet 350 outputs air to the room to filter the air and fresh air. The structure is reasonably designed and saves space.

In some embodiments, the first fan 260 has an input end and an output end. The first fan 260 is disposed in the first chamber, the input end of the first fan 260 faces the first chamber, and the output end of the first fan 260 faces the second indoor air outlet 250. When the first motor 230 is running, the first fan 260 and the second fan 270 rotate simultaneously. The airflow entering the second chamber passes through the filter element 310 under the action of the first fan 260 and is output through the second indoor air outlet 250.

In some embodiments, the first chamber is located between the second chamber and the second fan 270. The first motor 230 is disposed outside the volute body 280, and the end of the output shaft of the first motor 230 that is away from the second fan 270 passes through the volute body 280 and is connected to the first fan 260 in the second chamber. The first fan 260 is a centrifugal fan, and the input end of the centrifugal fan is the end away from the first motor 230, and the second indoor air outlet 250 is opened on any side wall of the second chamber parallel to the axis of the centrifugal fan.

Please refer to Figures 66 to 89. In some embodiments, the volute body 280 is formed by the first half shell 301, the second half shell 302 and the third half shell 303, wherein the second half shell 302 is arranged on the side of the first half shell 301 away from the second fan 270, and the third half shell 303 is arranged on the side of the second half shell 302 away from the second fan 270. A first chamber is formed between the first half shell 301 and the second half shell 302, and a second chamber is formed between the second half shell 302 and the third half shell 303. The first fan 260 can be installed or removed by opening the first half shell 301 and the second half shell 302. The filter 310 is arranged between the second half shell 302 and the third half shell 303.

In some embodiments, a plug-in space 304 is provided on the volute body 280 to connect the inside of the volute body 280 with the outside; the plug-in space 304 is detachably plugged with the frame 290, and the filter 310 is arranged in the frame 290. When the frame 290 is fully plugged with the plug-in space 304, the second chamber and the first chamber are respectively located on both sides of the frame 290 and the filter 310. Pulling the frame 290, inserting the frame 290 into the plug-in space 304 or removing it from the plug-in space 304 can realize the installation or removal of the filter 310. When the filter 310 needs to be replaced or cleaned, the frame 290 can be directly pulled out, which is convenient for operation and improves efficiency.

66 to 89, in some embodiments, the insertion space 304 is opened on the side wall of the third half shell 303, and the opening direction of the insertion space 304 is perpendicular to the axial direction of the first fan 260. When inserting the frame 290, insert it from the seam between the first chamber and the second chamber until the frame 290 is completely inserted into the insertion space 304, and the frame 290 and the filter 310 in the frame 290 separate the first chamber from the second chamber.

In some embodiments, the filter element 310 is detachable from the frame 290 , and the connection methods between the filter element 310 and the frame 290 include but are not limited to pasting, snapping, and plugging.

66 to 89, in some embodiments, the filter element 310 is a filter screen, and the filter screen is laid in the frame 290. The filter screen is a common filtering tool, which can be purchased in bulk at a low cost and has a good filtering effect.

In some embodiments, the second indoor air inlet 900 and the second air inlet 330 are provided on the same side wall of the volute body 280; the baffle 120 slides or flips on the side wall of the volute body 280 where the second air inlet 330 is provided. The baffle 120 only needs to flip or move to open and close the second indoor air inlet 900 and the second air inlet 330, and only one baffle 120 is needed to achieve this function, thereby reducing costs.

Please refer to Figures 66 to 89. In some embodiments, the volute body 280 is provided with a first driving member 340, the output shaft of the first driving member 340 is connected to the gear 140, and the baffle 120 is provided with a rack 150 meshing with the gear 140; the first driving member 340 drives the gear 140 to rotate, and the gear 140 meshes with the rack 150 to drive the baffle 120 to move along the length direction of the rack 150 to open or close the second indoor air inlet 900 and the second air inlet 330. The moving direction of the baffle 120 can be changed by the forward or reverse rotation of the first driving member 340 to realize the switching of the opening and closing of the second air inlet 330 and the second indoor air inlet 900, and the structure is simple and reliable.

In some embodiments, the first driving member 340 includes but is not limited to a motor, the first driving member 340 is disposed outside the volute body 280, the output shaft of the first driving member 340 extends into the volute body 280, and the gear 140 is located in the second chamber and connected to the output shaft of the first driving member 340. The baffle 120 is attached to and slides on the inner side wall of the second chamber where the second air inlet 330 is opened. The distribution direction of the second air inlet 330 and the second indoor air inlet 900 is the sliding direction of the baffle 120. The baffle 120 can completely close the second air inlet 330 or completely close the second indoor air inlet 900. It is also possible to close half of the second air inlet 330 and half of the second indoor air inlet 900 respectively.

In some embodiments, when the baffle 120 completely closes the second air inlet 330, the second indoor air inlet 900 is opened. When the baffle 120 completely closes the second indoor air inlet 900, the second air inlet 330 is opened.

Please refer to FIG. 87 , in some embodiments, when the controller receives the first signal, the controller controls the first driving member 340 to start to drive the gear 140 to rotate, and the gear 140 is meshed with the rack 150 to move the baffle 120 toward the second indoor air inlet 900 to close the second indoor air inlet 900, and the second air inlet 330 is opened. Outdoor fresh air enters the second chamber through the second air inlet 330 and enters the first chamber after being filtered by the filter element 310. The fresh air entering the first chamber is output through the second indoor air outlet 250 under the action of the first fan 260.

In some embodiments, the first operating mode is the fresh air mode, which is intended to input outdoor fresh air into the room. In the fresh air mode, the controller controls the first driving member 340 to start and drive the gear 140 to rotate. The gear 140 and the rack 150 are meshed to move the baffle 120 toward the second air inlet 330 to close the second air inlet 330, and the second indoor air inlet 900 is opened. Indoor air enters the second chamber through the first indoor air inlet and the second indoor air inlet 900. After entering the second chamber, the air is filtered by the filter element 310 and then enters the first chamber. The airflow entering the first chamber is output through the second indoor air outlet 250 under the action of the first fan 260.

Please refer to Figure 88, the present disclosure also provides a wall-mounted air conditioner, which includes: a shell 220, an indoor heat exchanger, a volute body 280, a first fan 260, a second fan 270, a first motor 230, a baffle 120, a first driving member 340 and a controller; wherein the shell 220 is arranged at the top of the room or above the room; the shell 220 is provided with a first inner cavity and a second inner cavity along the length direction; the shell 220 is provided with a first indoor air inlet at the top, and the shell 220 is provided with a first indoor air outlet 350 at the front bottom; 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 volute body 280 is arranged in the second inner cavity, and the volute body 280 is provided with a second indoor air inlet 900, a second air inlet 330 and a second indoor air outlet 250; the first fan 260 is provided Placed in the volute body 280; the second fan 270 is arranged in the first inner cavity, and the second fan 270 is arranged below the indoor heat exchanger; the indoor air flow enters the shell 220 through the first indoor air inlet and is output from the first indoor air outlet 350 after being heat exchanged by the indoor heat exchanger; the first motor 230 drives the second fan 270 and the first fan 260 to rotate synchronously; the baffle 120 is arranged on the volute body 280; the first driving member 340 is configured to drive the baffle 120 to move, so that the baffle 120 opens the second indoor air inlet 900 and closes the second air inlet 330, or closes the second indoor air inlet 900 and opens the second air inlet 330, or opens the second indoor air inlet 900 and the second air inlet 330 at the same time; in the third operating mode, the baffle 120 is controlled to move to a position where the second air inlet 330 and the second indoor air inlet 900 are opened simultaneously. When entering the mixed air mode, the baffle 120 can half-open the second air inlet 330 and the second indoor air inlet 900, so that the indoor air enters the volute body 280 through the second indoor air inlet 900, and the outdoor fresh air enters the volute body 280 through the second air inlet 330. The indoor air entering the volute body 280 and the fresh air entering the volute body 280 are mixed in the volute body 280 and filtered through the filter element 310, and then output to the room from the second indoor air outlet 250 and the first indoor air outlet 350.

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

In some embodiments, when the mixed air mode is entered, the controller controls the first driving member 340 to start to drive the gear 140 to rotate, and the baffle 120 is located between the second air inlet 330 and the second indoor air inlet 900 through the meshing of the gear 140 and the rack 150. The baffle 120 partially blocks the second indoor air inlet 900 and the second air inlet 330, and the indoor air flow and the outdoor fresh air enter the second chamber and mix. The mixed air flow is filtered by the filter element 310 under the action of the first fan 260 and enters the first chamber. The air flow entering the first chamber is output through the second indoor air outlet 250 under the action of the first fan 260.

In some embodiments, a slide groove is provided on the inner wall of the volute body 280, and the baffle 120 partially slides in the slide groove, and the length direction of the slide groove is the same as the moving direction of the baffle 120. The baffle 120 slides in the slide groove, and the moving direction of the baffle 120 is limited by the slide groove, so as to ensure the accurate position of the baffle 120 during movement and improve the stability of the baffle 120 during operation.

In some embodiments, there are two slide grooves, one of which is opened on the side of the second half shell 302 facing the third half shell 303, and the other slide groove is opened between the third half shell 303 and the second half shell 302. The two sides of the baffle 120 slide on the two slide grooves respectively. The sliding direction of the baffle 120 is further limited by the two slide grooves. When installing the baffle 120, the baffle 120 is located between the second half shell 302 and the third half shell 303, and the third half shell 303 and the second half shell 302 are gradually approached and connected, so that the two sides of the baffle 120 are located in the two slide grooves respectively.

Please refer to Figure 89, in some embodiments of the present disclosure, a second driving member is provided on the volute body 280, and the baffle 120 is directly connected to the output shaft of the second driving member. The second air inlet 330 and the second indoor air inlet 900 are arranged adjacent to each other, and the second driving member is arranged between the second air inlet 330 and the second indoor air inlet 900.

In some embodiments, the first motor 230 is directly connected to the second fan 270 , and the second fan 270 is connected to the first fan 260 via a connecting shaft, so that the first motor 230 drives the second fan 270 and the first fan 260 to rotate synchronously.

In some embodiments, the first motor 230 is directly connected to the first fan 260 , and the first fan 260 is connected to the second fan 270 via a connecting shaft, so that the first motor 230 drives the second fan 270 and the first fan 260 to rotate synchronously.

As shown in Figures 90 to 97 and 107, in some embodiments of the wall-mounted air conditioner disclosed herein, the wall-mounted air conditioner includes: a housing 220, an indoor heat exchanger, a second fan 270, a volute body 280, a first fan 260, a first motor 600, a baffle 120, a sealing plate 800 and a driving module; wherein the housing 220 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 housing 220 along the length direction; an indoor air inlet is opened at the top of the housing 220, and an indoor air outlet is opened at the front bottom of the housing 220; 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 volute body 280 is arranged in the second inner cavity, and a second air inlet 330 and a second air outlet 240 are opened on the volute body 280; the first fan 260 is arranged in the volute body 280; the second fan 270 is arranged in the first inner cavity, and the second fan 270 is arranged below the indoor heat exchanger; The indoor air flow enters the housing 220 through the indoor air inlet and is output from the indoor air outlet after being heat exchanged by the indoor heat exchanger; the first motor 600 drives the second fan 270 and the first fan 260 to rotate synchronously through the connecting shaft; the baffle 120 is arranged on the volute body 280; the sealing plate 800 is arranged on the volute body 280; the driving module is configured to drive the baffle 120 to open or close the second air inlet 330, and drive the sealing plate 800 to open or close the second air outlet 240; in the first operating mode, the driving The module drives the baffle 120 to move to a position to open the second air inlet 330, and controls the sealing plate 800 to open the second air outlet 240; under the action of the rotation of the first fan 260, outdoor fresh air enters the volute body 280 through the second air inlet 330 and is output through the second air outlet 240; in the second operating mode, the drive module drives the baffle 120 to move to a position to close the second air inlet 330, and controls the drive module to drive the sealing plate 800 to close the second air outlet 240; the interior of the fresh air module is in a closed state.

Through the above solution, when not in the fresh air mode, the driving module drives the baffle 120 and the sealing plate 800 to respectively close the second air inlet 330 and the second air outlet 240 to close the volute body 280 to reduce noise. At the same time, the sealing plate 800 closes the second air outlet 240 to prevent dust from entering the volute body 280.

In some embodiments, the wall-mounted air conditioner further includes a controller.

In some embodiments, when the user wants to introduce outdoor fresh air into the room, a first signal is sent to the controller through a remote control, mobile phone software, or control panel, and the wall-mounted air conditioner enters the first operating mode.

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

In some embodiments, the first operating mode is a fresh air mode to input outdoor fresh air into the room.

In some embodiments, the first motor 600 is a coaxial motor, one end of the output shaft of which is connected to the second fan 270, and the other end is connected to the first fan 260. In some embodiments, the output shaft of the first motor 600 is connected to the second fan 270, and the second fan 270 is coaxially connected to a transmission shaft, which is connected to the first fan 260.

In some embodiments, the housing 220 is horizontally arranged and hung on a wall, a wall pipe is passed through the wall to communicate with the outside, and one end of the wall pipe located indoors is connected and communicated with the second air inlet 330. The output shaft of the first motor 600 has two output ends, and the second fan 270 and the first fan 260 are coaxially connected to the two output ends of the first motor 600, respectively. In the prior art, the first fan 260 and the second fan 270 are usually driven by two motors respectively, which is relatively expensive. In the present disclosure, only one first motor 600 is needed to realize the rotation of the first fan 260 and the rotation of the second fan 270, saving costs.

In the prior art, when the first motor 600 is running, the second fan 270 and the first fan 260 must rotate synchronously. Therefore, when the user does not want to blow fresh air into the room through the first fan 260, the common practice is to directly close the second air inlet 330 using the anti-backflow device. However, because the first fan 260 must rotate, the first fan 260 continues to rotate in the volute body 280 and outputs airflow through the second air outlet 240, but no fresh air can enter the volute body 280 from the second air inlet 330. Therefore, negative pressure will be generated in the volute body 280, and the indoor air will generate turbulence at the second air outlet 240 under the action of air pressure, and the outdoor fresh air will continuously hit the anti-backflow device, so noise will occur. And because of the problem of air pressure, the resistance of the first fan 260 rotating in the volute body 280 will increase, resulting in the first fan 260 being blocked. And because of the blocking of the first fan 260, the problem of overload operation of the first motor 600 will be caused.

In this solution, when the wall-mounted air conditioner is not in the fresh air mode, the driving module drives the sealing plate 800 to close the second air outlet 240, and the baffle 120 moves to the second air inlet 330 to close the second air inlet 330. The sealing plate 800 and the baffle 120 turn the volute body 280 into an independent cavity that is not connected to the outside world, avoiding negative pressure to reduce noise. Even if there is noise, the noise is located inside the volute body 280, preventing the noise from entering the room through the second air outlet 240, further reducing the noise.

Referring to FIGS. 90 to 109 , in some embodiments, the driving module includes: a first driving member 340, wherein the sealing plate 800 is disposed at the second air outlet 240; the first driving member 340 is disposed on the volute body 280 and close to the second air outlet 240; the first driving member 340 drives the sealing plate 800 to flip to open or close the second air outlet 240. When the first driving member 340 is started, the first driving member 340 directly drives the sealing plate 800 to flip to open or close the second air outlet 240, and the structure and movement process are simple.

In some embodiments, the driving module further includes a first gear 370, and the first driving member 340 is installed at the second air outlet 240 in the volute body 280, and the output shaft of the first driving member 340 is perpendicular to the opening direction of the second air outlet 240. The first gear 370 is coaxially fixed to the output shaft of the first driving member 340. The sealing plate 800 is hinged at the second air outlet 240, and the sealing plate 800 and the volute body 280 are hinged to the volute body 280 through the rotating shaft 360, and the transmission gear 130 is coaxially fixed on the rotating shaft 360. The first gear 370 is meshed with the transmission gear 130, and the first driving member 340 is started, and the output shaft of the first driving member 340 drives the first gear 370 to rotate, and the first gear 370 is meshed with the transmission gear 130 to drive the sealing plate 800 to flip.

90 to 109 , in some embodiments, the output shaft of the first driving member 340 is directly connected to the sealing plate 800. The first driving member 340 , the output shaft of the first driving member 340 directly drives the sealing plate 800 to flip.

In some embodiments, the first driving member 340 includes but is not limited to an electric motor.

In some embodiments, when there is only one sealing plate 800 , the area of the sealing plate 800 is larger than the area of the second air outlet 240 , and the sealing plate 800 can directly close the second air outlet 240 .

In some embodiments, a plurality of sealing plates 800 are arranged at intervals along the length direction of the second air outlet 240, and a transmission gear 130 is arranged at one end of each sealing plate 800; the driving module further comprises a first rack 151; a first gear 370 is arranged on the output shaft of the first driving member 340; the first rack 151 slides on the volute body 280, and the first gear 370 and each transmission gear 130 are meshed with the first rack 151. When the first driving member 340 is started, the output shaft of the first driving member 340 drives the first gear 370 to rotate, the first gear 370 meshes with the first rack 151 to drive the first rack 151 to move, the movement of the first rack 151 drives the respective transmission gears 130 meshed therewith to rotate, and the rotation of each gear drives the corresponding sealing plate 800 to flip open or close the second air outlet 240.

Referring to FIGS. 90 to 109 , in some embodiments, the opening direction of the second air outlet 240 is perpendicular to the length direction. The length direction of each sealing plate 800 is parallel and perpendicular to the length direction of the second air outlet 240. Each sealing plate 800 is rotatably connected to the second air outlet 240 via a rotating shaft 360. The first driving member 340 is close to one side of the sealing plate 800, and the transmission gear 130 is coaxially fixed to the corresponding sealing plate 800 on the end of the rotating shaft 360 close to the first driving member 340. The length direction of the first rack 151 is the same as the direction in which the sealing plates 800 are spaced apart. The first gear 370 meshes with the first rack 151 and drives the first rack 151 to move along the length direction of the first rack 151. When the first rack 151 moves, it drives each transmission gear 130 to rotate to control the flipping of the sealing plate 800. When the width directions of each sealing plate 800 are in the same plane, each sealing plate 800 closes the second air outlet 240.

In some embodiments, the wind direction of the air output through the second air outlet 240 can be adjusted according to the flipping direction of the sealing plate 800 .

In some embodiments, tooth grooves are provided on both sides of the first rack 151; each transmission gear 130 is disposed on one side of the first rack 151 and meshes with the first rack 151. The first gear 370 meshes with the side of the first rack 151 away from the transmission gear 130 and meshes with the first rack 151. This method can save space.

Referring to FIGS. 90 to 109 , in some embodiments, a mounting frame is provided at the second air outlet 240 ; the two ends of each sealing plate 800 are respectively rotated on the opposite side walls in the mounting frame; a transmission cavity is provided on the mounting frame; the first rack 151 , the first gear 370 and the transmission gear 130 are all provided in the transmission cavity. The transmission cavity is provided to prevent the first rack 151 , the first gear 370 and the transmission gear 130 from being separated from each other. The transmission cavity is also used to limit the moving direction of the first rack 151 , thereby improving the stability of the structure.

In some embodiments, both ends of the rotating shaft 360 on each sealing plate 800 penetrate the mounting frame. A transmission cavity is opened on any outer wall of the mounting frame through which the rotating shaft 360 is penetrated, and one end of the rotating shaft 360 close to the transmission cavity extends into the transmission cavity, and the transmission gear 130 is located in the transmission cavity. The first rack 151 slides in the transmission cavity along its length direction, and the first rack 151 reciprocates to adjust the sealing plate 800 to flip clockwise or counterclockwise.

In some embodiments, a sealing ring is provided between the sealing plate 800 and the second air outlet 240. By providing the sealing ring, when the sealing plate 800 closes the second air outlet 240, the sealing ring is clamped by the sealing plate 800 and the second air outlet 240, thereby improving the sealing performance of the sealing plate 800 to the second air outlet 240 and further reducing the transmission of noise.

In some embodiments, the sealing ring is located on a side of the mounting frame away from the volute body 280, so that when the sealing plate 800 is flipped and fitted to the mounting frame, the sealing performance is improved by the sealing ring between the sealing plate 800 and the mounting frame.

Referring to FIGS. 90 to 109 , in some embodiments, a second driving member 160 is provided on the volute body 280, an output shaft of the second driving member 160 is connected to a second gear 180, and a second rack 152 meshing with the second gear 180 is provided on the baffle 120; the second driving member 160 drives the second gear 180 to rotate, and the second gear 180 meshes with the second rack 152 to drive the baffle 120 to move along the length direction of the second rack 152 to open or close the second air inlet 330. The second driving member 160 is started to drive the second gear 180 to rotate, and the moving direction of the baffle 120 can be changed by the forward or reverse rotation of the second driving member 160, so as to open or close the second air inlet 330 by the baffle 120.

In some embodiments, the second driving member 160 is disposed outside the volute body 280, the output shaft of the second driving member 160 extends into the volute body 280, and the second gear 180 is located in the volute body 280 and connected to the output shaft of the second driving member 160. The baffle 120 is attached to and slides on the inner side wall of the volute body 280 where the second air inlet 330 is opened. The baffle 120 can completely close the second air inlet 330.

Referring to FIGS. 90 to 109 , in some embodiments, a filter is disposed in the volute body 280, and the filter divides the interior of the volute body 280 into a second chamber and a first chamber, the second air inlet 330 is connected to the second chamber, and the second air outlet 240 is connected to the first chamber. When the outdoor fresh air enters the room, it passes through the filter and is filtered by the filter, thereby improving the indoor air quality.

In some embodiments, the volute body 280 is formed by buckling a first half shell 301, a second half shell 302, and a third half shell 303, wherein the second half shell 302 is disposed on a side of the first half shell 301 away from the second fan 270, and the third half shell 303 is disposed on a side of the second half shell 302 away from the third fan 270. The first fan 260 is disposed on one side of the second fan 270. A first chamber is formed between the first half shell 301 and the second half shell 302, and a second chamber is formed between the second half shell 302 and the third half shell 303. The first fan 260 can be installed or removed by opening the first half shell 301 and the second half shell 302. The filter is disposed between the second half shell 302 and the third half shell 303.

In some embodiments, a plug-in space 304 is provided on the volute body 280 to connect the inside of the volute body 280 with the outside world; the plug-in space 304 is detachably plugged with the frame 290, and the filter is arranged in the frame 290. When the frame 290 is fully plugged with the plug-in space 304, the second chamber and the first chamber are respectively located on both sides of the frame 290 and the filter. The filter can be installed or removed by pulling the frame 290, inserting the frame 290 into the plug-in space 304 or removing the frame 290 from the plug-in space 304. When the filter needs to be replaced or cleaned, the frame 290 can be directly pulled out, which is convenient for operation and improves efficiency.

90 to 109, in some embodiments, the insertion space 304 is opened on the side wall of the third half shell 303, and the opening direction of the insertion space 304 is perpendicular to the axial direction of the first fan 260. When inserting the frame 290, insert it from the seam between the first chamber and the second chamber until the frame 290 is completely inserted into the insertion space 304, and the frame 290 and the filter element in the frame 290 separate the first chamber from the second chamber.

In some embodiments, the filter element is detachable from the frame 290, and the connection methods between the filter element and the frame 290 include but are not limited to pasting, snapping, and plugging.

90 to 109, in some embodiments, the filter element is a filter screen, and the filter screen is laid in the frame 290. The filter screen is a common filtering tool, which can be purchased in bulk at a low cost and has a good filtering effect.

In some embodiments, a slide groove is provided on the inner wall of the volute body 280, and the baffle 120 partially slides in the slide groove, and the length direction of the slide groove is the same as the moving direction of the baffle 120. The baffle 120 slides in the slide groove, and the moving direction of the baffle 120 is limited by the slide groove, so as to ensure the accurate position of the baffle 120 during movement and improve the stability of the baffle 120 during operation.

In some embodiments, there are two slide grooves, one of which is opened on the side of the second half shell 302 facing the third half shell 303, and the other slide groove is opened between the third half shell 303 and the second half shell 302. The two sides of the baffle 120 slide on the two slide grooves respectively. The sliding direction of the baffle 120 is further limited by the two slide grooves. When installing the baffle 120, the baffle 120 is located between the second half shell 302 and the third half shell 303, and the third half shell 303 and the second half shell 302 are gradually approached and connected, so that the two sides of the baffle 120 are located in the two slide grooves respectively.

Please refer to Figures 107 to 109. In some embodiments, in the first operating mode, the first driving member 340 is controlled to rotate to drive the sealing plate 800 to flip and open the second air outlet 240; the second driving member 160 is controlled to rotate, and the second gear 180 is engaged with the second rack 152 to move the baffle 120 to open the second air inlet 330; when exiting the fresh air mode, the first driving member 340 is controlled to rotate to drive the sealing plate 800 to flip and close the second air outlet 240; the second driving member 160 is controlled to rotate, and the second gear 180 is engaged with the second rack 152 to move the baffle 120 to close the second air inlet 330.

In some embodiments, a carbon dioxide sensor is provided on the housing 220, and the control is configured to detect the indoor carbon dioxide detection value using the carbon dioxide sensor, and start the fresh air mode when the carbon dioxide detection value exceeds a first preset value, and exit the fresh air mode when the carbon dioxide is detected to be lower than a second preset value. The indoor carbon dioxide concentration is detected by the carbon dioxide sensor, and the wall-mounted air conditioner is controlled to enter or exit the fresh air mode according to the indoor carbon dioxide concentration.

In some embodiments, specific values of the first preset value and the second preset value are factory preset or user set.

In some embodiments, the values of the first preset value and the second preset value may be consistent.

In some embodiments, an air-conditioning outlet is opened on the shell 220, and the second fan outputs the air-conditioned air after heat exchange in the indoor heat exchanger to the indoor room through the air-conditioning outlet. An air guide plate is provided on the shell 220, and the air guide plate is provided at the air-conditioning outlet to adjust the wind direction of the air-conditioned air.

The present disclosure also provides a wall-mounted air conditioner, which includes: a shell 220, an indoor heat exchanger, a second fan 270, a volute body 280, a first fan 260, a first motor 600, a baffle 120, a sealing plate 800, a drive module and a controller; wherein the shell 220 is arranged at the top of the room or above the room; the shell 220 is provided with a first inner cavity and a second inner cavity along the length direction; the shell 220 is provided with an indoor air inlet at the top, and the shell 220 is provided with an indoor air outlet at the front bottom; 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 volute body 280 is arranged in the second inner cavity, and the volute body 280 is provided with a second air inlet 330 and a second air outlet 240; the first fan 260 is arranged in the volute body 280; the second fan 270 is provided Placed in the first inner cavity, the second fan 270 is arranged below the indoor heat exchanger; the indoor air flow enters the shell 220 through the indoor air inlet and is output from the indoor air outlet after heat exchanged by the indoor heat exchanger; the first motor 600 drives the second fan 270 and the first fan 260 to rotate synchronously through the connecting shaft; the baffle 120 is arranged on the volute body 280; the sealing plate 800 is arranged on the volute body 280; the driving module is configured to drive the baffle 120 to open or close the second air inlet 330, and drive the sealing plate 800 to open or close the second air outlet 240; the controller is configured to: when receiving the first signal, control the driving module to open the second air inlet 330, and open the second air outlet 240; under the action of the rotation of the first fan 260, the outdoor fresh air enters the volute body 280 through the second air inlet 330 And output through the second air outlet 240; when receiving the second signal, the control driving module closes the second air inlet 330 and the second air outlet 240; the interior of the fresh air module is in a closed state.

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

Claims (10)

An air conditioner, comprising: Outdoor unit; Indoor unit, including: A housing, comprising a first air inlet and a first air outlet, wherein the first air inlet and the first air outlet extend along a length direction of the housing respectively; An indoor heat exchanger is disposed in the casing; A first fan is arranged in the casing and below the indoor heat exchanger; the first fan extends along the length direction of the casing; the first fan operates to introduce indoor air into the casing from the first air inlet, and after heat exchange in the indoor heat exchanger, the indoor air flows into the room from the first air outlet; a volute body is arranged in the casing; the volute body and the first fan are arranged along the length direction of the casing, and the volute body includes: A first shell including a second air outlet; A second shell is arranged on a side of the first shell away from the first fan; A second fan is disposed in the volute body and is configured to introduce outdoor fresh air into the room; A first drive shaft is configured to connect the first fan and the second fan, and the rotation axis of the first drive shaft, the rotation axis of the first fan and the rotation axis of the first fan are coaxially arranged; an axial hole, provided in the volute body, through which the first drive shaft passes; a diameter of the axial hole is less than or equal to 1.5 times the diameter of the first drive shaft; A first motor is arranged at an end of the second fan away from the first fan, the first motor drives the second fan to rotate, and the second fan drives the first fan to rotate through the first driving shaft; A ventilation shell, arranged on a side of the second shell away from the first shell, the ventilation shell comprising a second air inlet and a purification air inlet; a guide rail disposed in at least one of the ventilated shell or the second shell; a baffle, the baffle cooperating with the guide rail to slide along the guide rail; A first stopper, a second stopper and a third stopper, wherein the first stopper, the second stopper and the third stopper are arranged between the ventilation shell and the second shell, and the third stopper is located between the purification air inlet and the second air inlet; Wherein, when the baffle plate slides to abut against the first stopper, the third stopper abuts against the baffle plate, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet; When the baffle plate slides to abut against the second stopper, the third stopper abuts against the baffle plate, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet. The air conditioner according to claim 1, wherein: The baffle can slide along the guide rail from a first position to a second position and a third position in sequence; When the baffle slides to the first position, the baffle abuts against the first stopper, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet; When the baffle slides to the second position, the baffle abuts against the second stopper, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet; When the baffle slides to the third position, the baffle abuts against the second stopper, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet. The air conditioner according to claim 2, wherein: When the baffle slides to the second position, the shortest distance between the second stopper and the baffle is defined as a first distance; When the baffle slides to the third position, the shortest distance between the second stopper and the baffle is defined as a second distance; wherein the first distance is smaller than the second distance. The air conditioner according to claim 2, wherein: The guide rail includes a first limiting portion and a second limiting portion; When the baffle slides to the first position, the baffle abuts against the first limiting portion; When the baffle slides to the second position, the baffle abuts against the second limiting portion. The air conditioner according to any one of claims 1 to 4, wherein: The guide rail comprises: A first guide rail, disposed on the ventilation shell; A second guide rail is disposed on the second shell, and the first guide rail and the second guide rail are disposed correspondingly; The opposite ends of the baffle are respectively engaged with the first guide rail and the second guide rail. The air conditioner according to any one of claims 1 to 5, wherein: The first fan includes a shaft connection portion, the shaft connection portion is configured to be connected to the first drive shaft, and an end of the first drive shaft away from the second fan is connected to the shaft connection portion. The air conditioner according to claim 6, wherein: The first shell includes a connecting hole, the connecting hole is communicated with the interior of the first shell, and the opening of the connecting hole is arranged toward the second fan; the first driving shaft passes through the connecting hole and is connected to the shaft connecting part. The air conditioner according to any one of claims 1 to 7, wherein: The housing includes a bearing, the first drive shaft cooperates with the bearing and passes through the bearing, the first drive shaft is connected to the bearing, and the bearing is configured to support the first drive shaft to rotate. The air conditioner according to any one of claims 1 to 8, further comprising: A second motor is disposed in the ventilation shell; a gear, wherein a rotating shaft of the gear is connected to an output shaft of the second motor; The baffle includes a rack portion, and the rack portion is meshed with the gear; The output shaft of the second motor rotates to drive the gear to rotate, and the gear is meshed with the rack portion to drive the baffle to slide along the guide rail. An air conditioner, comprising: Outdoor unit; Indoor unit, including: A casing, the casing comprising a first air inlet and a first air outlet, the first air inlet and the first air outlet respectively extending along a length direction of the casing; An indoor heat exchanger is disposed in the casing; A first fan is arranged in the casing and below the indoor heat exchanger; the first fan extends along the length direction of the casing; the first fan operates to introduce indoor air into the casing from the first air inlet, and after heat exchange in the indoor heat exchanger, the indoor air flows into the room from the first air outlet; a volute body is arranged in the casing; the volute body and the first fan are arranged along the length direction of the casing, and the volute body includes: A first shell including a second air outlet; a second shell, disposed on a side of the first shell away from the first fan; A second fan is disposed in the volute body and is configured to introduce outdoor fresh air into the room; a first motor, disposed in the housing, and configured to drive the first fan and the second fan to operate synchronously; the first motor comprises a first motor shaft and a second motor shaft, the first motor shaft and the second motor shaft are coaxially arranged, and the first motor shaft is connected to the first fan; the second motor shaft is connected to the first fan; A first fan is disposed in the volute body; A second fan is disposed in the housing; A connecting shaft, one end of which is connected to the first fan, and the other end of which is connected to the second fan or the first motor; an axial hole, provided in the volute body, through which the first drive shaft passes; a diameter of the axial hole is less than or equal to 1.5 times the diameter of the connecting shaft; A ventilation shell, arranged on a side of the second shell away from the first shell, the ventilation shell comprising a second air inlet and a purification air inlet; a guide rail disposed on at least one of the ventilated shell or the second shell; a baffle, the baffle cooperating with the guide rail to slide along the guide rail; A first stopper, a second stopper and a third stopper, wherein the first stopper, the second stopper and the third stopper are arranged between the ventilation shell and the second shell, and the third stopper is located between the purification air inlet and the second air inlet; Wherein, when the baffle plate slides to abut against the first stopper, the third stopper abuts against the baffle plate, the purified air inlet is separated from the second air outlet, and the second air inlet is connected to the second air outlet; When the baffle plate slides to abut against the second stopper, the third stopper abuts against the baffle plate, the purified air inlet is connected to the second air outlet, and the second air inlet is separated from the second air outlet.