CN115823737A

CN115823737A - Air duct machine and control method thereof

Info

Publication number: CN115823737A
Application number: CN202211589937.8A
Authority: CN
Inventors: 郑锴; 王萍; 鲍勇; 胡知耀; 陈森群
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-21

Abstract

The application relates to an air duct machine and a control method thereof, the air duct machine comprises: the casing comprises a casing body and a cover body, wherein a first air inlet is formed in the casing body, and the cover body is movably arranged on the casing body so as to open and cover the first air inlet; the heat exchange device is arranged in the shell; the centrifugal device is arranged in the shell and is used for providing air volume for the heat exchange device; the axial flow device is accommodated in the shell and arranged in the first air inlet; when the first air inlet is opened, the axial flow device provides air quantity for the centrifugal device in an auxiliary mode through the first air inlet. A control method of a ducted air conditioner includes: controlling the air pipe machine to be in a cooling or heating mode; detecting indoor environment temperature and compressor frequency; and controlling the opening and closing state of the cover body and the frequency of the compressor according to the indoor environment temperature and/or the frequency of the compressor. The air duct machine and the control method thereof are beneficial to saving energy consumption and reducing operation noise.

Description

Air duct machine and control method thereof

Technical Field

The application relates to the technical field of air conditioners, in particular to an air duct machine and a control method thereof.

Background

The existing air duct machine needs smaller size when the building space is smaller. The size reduction is that the return air area reduces, leads to the amount of wind of tuber pipe machine to reduce. The rotating speed of the fan needs to be increased so that the air quantity is not influenced, and the air pipe machine has the advantages of increased energy consumption and high operation noise.

Disclosure of Invention

Accordingly, it is necessary to provide a duct type air conditioner and a control method thereof, which solve the problems of increased energy consumption and large operation noise of the duct type air conditioner.

A ducted air conditioner comprising:

the casing comprises a casing body and a cover body, wherein a first air inlet is formed in the casing body, and the cover body is movably arranged on the casing body so as to open and cover the first air inlet;

the heat exchange device is arranged in the shell;

the centrifugal device is arranged in the shell and is used for providing air volume for the heat exchange device;

the axial flow device is accommodated in the shell and arranged in the first air inlet; when the first air inlet is opened, the axial flow device provides air quantity for the centrifugal device in an auxiliary mode through the first air inlet.

Foretell tuber pipe machine, lid activity are located the casing and are in order to open and to close first income wind gap, and when first income wind gap was opened, axial-flow device provided the amount of wind for centrifugal device is supplementary through first income wind gap, need not to improve centrifugal device's rotational speed and can improve the amount of wind, are favorable to practicing thrift the energy consumption and reduce the noise of operation.

In one embodiment, the duct machine further includes a first driving device, the cover is movably disposed on the housing, and the first driving device is configured to drive the cover to move.

In one embodiment, the first driving device includes a first driving member, a rack, and a gear, the gear is engaged with the rack, the cover is fixedly connected to the rack, and the first driving member is configured to drive the gear to rotate and drive the rack to move.

In one embodiment, the casing has two first air inlets arranged oppositely along a first direction, each of the first air inlets is correspondingly provided with at least one cover and at least one axial-flow device, and the first direction is an air inlet direction of the first air inlet.

In one embodiment, the duct type air conditioner further comprises a flow guide ring protruding on the inner wall of the housing, and the flow guide ring is covered on the periphery of the axial flow device and is coaxially arranged with the axial flow device.

In one embodiment, the deflector ring has a first end and a second end opposite to each other in the first direction, the first end is close to the first air inlet, the second end is close to the axial flow device, and the inner diameter of the first end is smaller than that of the second end.

In one embodiment, the air duct machine further includes a second driving device, and an output shaft of the second driving device is coaxially disposed with all of the axial flow devices and the centrifugal device and is used for providing power for all of the axial flow devices and the centrifugal device.

In one embodiment, the heat exchange device comprises an evaporator, the evaporator is arranged in the shell and is arranged side by side with the centrifugal device in a second direction, and the second direction is perpendicular to the first direction.

In one embodiment, the centrifugal device has a first centrifugal air inlet, a second centrifugal air inlet and a centrifugal air outlet, the heat exchange device is disposed at the centrifugal air outlet, the axial flow device is disposed at the first centrifugal air inlet, and the second centrifugal air inlet is communicated with the outside.

In one embodiment, the centrifugal device includes a centrifugal blade and a centrifugal volute, the centrifugal blade is rotatably disposed in the centrifugal volute, the first centrifugal air inlet, the second centrifugal air inlet and the centrifugal air outlet are disposed on different sides of the centrifugal volute, and the housing is provided with a second air inlet communicated with the first centrifugal air inlet.

A control method of an air duct machine comprises a centrifugal device and an axial flow device, wherein the centrifugal device is used for providing air volume for a heat exchange device, the axial flow device is used for providing air volume for the centrifugal device in an auxiliary mode and is arranged at a first air inlet of the air duct machine, a cover body of the air duct machine is used for opening and closing the first air inlet, and the control method is characterized by comprising the following steps:

controlling the air pipe machine to be in a cooling or heating mode;

detecting indoor environment temperature and compressor frequency;

and controlling the opening and closing state of the cover body and the frequency of the compressor according to the indoor environment temperature and/or the frequency of the compressor.

According to the control method of the air duct machine, the opening and closing state of the cover body and the frequency of the compressor are controlled according to the indoor environment temperature and/or the frequency of the compressor, so that the air quantity input into the heat exchange device is controlled, energy consumption is saved, and running noise is reduced.

In one embodiment, the step of controlling the open/close state of the cover according to the indoor ambient temperature and/or the compressor frequency comprises:

acquiring a temperature difference T between the indoor environment temperature T1 and a preset temperature T0;

acquiring a frequency difference value F between the frequency F1 of the compressor and a preset frequency F;

when T > T1 or F > F1, controlling the cover body to increase the opening degree or the compressor to increase the frequency;

when T2 is more than or equal to T1 or F2 is more than or equal to F1, controlling the cover body to reduce the opening or the compressor to reduce the frequency;

and when T is less than or equal to T2 or F is less than or equal to F2, controlling the cover body to close.

In one embodiment, the method further comprises the following steps:

controlling the air pipe machine to switch to a self-cleaning mode;

and controlling the opening and closing state of the cover body according to different stages of the self-cleaning mode.

In one embodiment, the duct machine has two first air inlets oppositely arranged along a first direction, and each first air inlet is correspondingly provided with one cover body;

when the air pipe machine is in a first self-cleaning stage, controlling the two cover bodies to keep different opening and closing states;

when the air pipe machine is in a self-cleaning second stage, controlling the two cover bodies to be in an open state;

and when the air pipe machine is in a third self-cleaning stage, controlling the two cover bodies to be in a closed state.

Drawings

FIG. 1 is a schematic illustration of an embodiment of a ducted air conditioner;

FIG. 2 is an internal schematic view of the duct machine of FIG. 1;

FIG. 3 is a schematic view of a first drive assembly of the duct machine of FIG. 2;

fig. 4 is a schematic view of the axial flow device and the centrifugal device in the duct machine shown in fig. 2.

Reference numerals:

100. a housing; 110. a housing; 111. a first air inlet; 120. a cover body; 200. a heat exchange device; 300. a centrifugal device; 301. a first centrifugal air inlet; 302. a second centrifugal air inlet; 303. a centrifugal air outlet; 310. a centrifugal fan blade; 320. a centrifugal volute; 400. an axial flow device; 500. a first driving device; 510. a first driving member; 520. a rack; 530. a gear; 600. a flow guide ring; 601. a first end; 602. a second end; 700. a second driving device.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "initially", "connected", "secured", and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, an air duct machine in an embodiment includes a casing 100, a heat exchanging device 200, a centrifugal device 300, and an axial flow device 400, where the casing 100 includes a casing 110 and a cover 120, the casing 110 is provided with a first air inlet 111, and the cover 120 is movably disposed on the casing 110 to open and close the first air inlet 111. The heat exchange device 200 is arranged in the shell 110, the centrifugal device 300 is arranged in the shell 110 and is used for providing air volume for the heat exchange device 200, and the axial flow device 400 is accommodated in the shell 110 and is arranged at the first air inlet 111; when the first air inlet 111 is opened, the axial flow device 400 assists in supplying air volume to the centrifugal device 300 through the first air inlet 111.

It should be noted that the first air inlet 111 is also the air inlet end of the axial flow device 400. When the cover 120 is moved to open the first air inlet 111, the external air flow enters the casing 110 through the first air inlet 111, and at this time, the axial flow device 400 can assist in providing air volume for the centrifugal device 300; when the cover 120 is moved to cover the first air inlet 111, the axial flow device 400 cannot supply air, and at this time, the axial flow device 400 cannot assist the centrifugal device 300 in supplying air.

In the ducted air conditioner, the cover 120 is movably disposed on the casing 110 to open and close the first air inlet 111, when the first air inlet 111 is opened, the axial flow device 400 provides air for the centrifugal device 300 through the first air inlet 111, the air can be increased without increasing the rotation speed of the centrifugal device 300, and the ducted air conditioner is beneficial to saving energy consumption and reducing operation noise.

Specifically, the axial flow device 400 is an axial flow fan blade.

Referring to fig. 2, the duct type air conditioner further includes a first driving device 500, the cover 120 is movably disposed on the housing 110, and the first driving device 500 is used for driving the cover 120 to move.

Through the above arrangement, the first driving device 500 drives the cover 120 to move so as to open and cover the first air inlet 111, which is convenient for the first air inlet 111 to be opened and closed quickly, thereby improving the user experience.

Specifically, referring to fig. 3, the first driving device 500 includes a first driving member 510, a rack 520 and a gear 530, the gear 530 is engaged with the rack 520, the cover 120 is fixedly connected to the rack 520, and the first driving member 510 is used for driving the gear 530 to rotate and driving the rack 520 to move.

It can be understood that the first driving member 510 drives the gear 530 to rotate, and the gear 530 engages the transmission rack 520 to move, and drives the cover 120 to move, so as to open and close the first air inlet 111.

In the present embodiment, the first driving member 510 is a motor, and the motor may be a stepping motor or a servo motor, and the type of the motor is not particularly limited. In other embodiments, the first driving member 510 may also be an air cylinder, and the rack 520 and the gear 530 may not be provided, and the air cylinder is connected to the cover 120 and drives the cover 120 to move along the first direction.

Referring to fig. 2 and fig. 1, the housing 110 has two first air inlets 111 disposed oppositely along a first direction, each first air inlet 111 is correspondingly provided with at least one cover 120 and at least one axial flow device 400, and the first direction is an air inlet direction of the first air inlet.

Note that the first direction is the X direction shown in fig. 2. In this embodiment, the opening sizes of the two first air inlets 111 are completely the same, so as to ensure that the opposite sides of the casing 110 along the first direction can both intake air and have the same air volume, and the air volume auxiliary adjustment of the centrifugal device 300 is more flexible. In other embodiments, the opening sizes of the two first air inlets 111 may not be the same.

Here, both the first air inlets 111 may be circular, square or other shapes, and the shape of the first air inlet 111 is not particularly limited.

Referring to fig. 2, the duct type air conditioner further includes a flow guiding ring 600 protruding from the inner wall of the casing 110, wherein the flow guiding ring 600 is covered on the outer periphery of the axial flow device 400 and is disposed coaxially with the axial flow device 400.

Here, the flow guiding ring 600 is disposed coaxially with the axial flow device 400, i.e., the central axis of the flow guiding ring 600 overlaps with the central axis of the axial flow device 400. With the above arrangement, when the first air inlet 111 is opened, the air flow can be rapidly guided to the axial flow device 400 through the guide ring 600; the flow guide ring 600 is coaxially arranged with the axial flow device 400, so that the air flow is uniformly distributed during flow guide.

In this embodiment, the number of the first air inlets 111 is two, and correspondingly, the number of the flow guiding rings 600 is also two, and the two flow guiding rings 600 are oppositely arranged along the first direction. In other embodiments, the number of the flow guiding rings 600 may be other values.

In this embodiment, the deflector ring 600 and the housing 110 are a split structure, and the deflector ring 600 is welded and fixed to the housing 110. In other embodiments, the deflector ring 600 and the housing 110 may be integrated into a single structure, which is good in integrity and convenient for quick assembly and disassembly.

Further, referring to fig. 2, the baffle 600 has a first end 601 and a second end 602 opposite to each other in the first direction, the first end 601 is close to the first air inlet 111, the second end 602 is close to the axial flow device 400, and an inner diameter of the first end 601 is smaller than an inner diameter of the second end 602.

It can be understood that the first end 601 is close to the first air inlet 111, the second end 602 is close to the axial flow device 400, and the inner diameter of the first end 601 is smaller than that of the second end 602, so that when the first air inlet 111 is opened, the air flow can be rapidly guided to the axial flow device 400 through the deflector 600.

Referring to fig. 2, the ducted air conditioner further includes a second driving device 700, and an output shaft of the second driving device 700 is coaxially disposed with all of the axial flow devices 400 and the centrifugal devices 300 and is used for providing power for all of the axial flow devices 400 and the centrifugal devices 300.

Specifically, the second driving device 700 is a motor. The same motor drives all the axial flow devices 400 and the centrifugal devices 300 to operate, so that energy consumption can be effectively saved, and the whole structure of the air duct machine is simplified.

It should be noted that a transmission device may be further disposed between the axial flow device 400 and the centrifugal device 300, the second driving device 700 is connected to the transmission device and serves as a power source, and the transmission device controls the rotation speed and the rotation direction of the axial flow device 400 and the centrifugal device 300, so that the axial flow device 400 and the centrifugal device 300 are controlled more flexibly.

Referring to fig. 1, the heat exchanger 200 includes an evaporator disposed in the casing 110 and arranged side by side with the centrifugal device 300 in a second direction, which is perpendicular to the first direction.

Here, the second direction is the Y direction shown in fig. 1. Through the arrangement, the whole structure of the air duct machine is more compact.

Specifically, the heat exchanger 200 includes a compressor and a condenser, which are connected to each other, in addition to the evaporator described above, so as to implement a heating or cooling cycle. Wherein, the compressor and the condenser are both disposed outside the casing 110.

Referring to fig. 4, the centrifugal device 300 has a first centrifugal inlet 301, a second centrifugal inlet 302 and a centrifugal outlet 303, the heat exchange device 200 is disposed at the centrifugal outlet 303, the axial flow device 400 is disposed at the first centrifugal inlet 301, and the second centrifugal inlet 302 is communicated with the outside.

It can be understood that, with reference to fig. 2 and fig. 1, when the first air inlet 111 is closed, the external air flow enters the centrifugal device 300 through the second centrifugal air inlet 302 and is output to the heat exchange device 200 through the centrifugal air outlet 303, and at this time, only the centrifugal device 300 provides air volume heat exchange for the heat exchange device 200; when the first air inlet 111 is opened, a part of external air flow enters the centrifugal device 300 through the second centrifugal air inlet 302, the other part of external air flow is guided to the first centrifugal air inlet 301 through the axial flow device 400 and enters the centrifugal device 300 through the first centrifugal air inlet 301, the centrifugal air outlet 303 outputs the external air flow to the heat exchange device 200, at this time, the centrifugal device 300 provides air volume for the heat exchange device 200, and the axial flow device 400 provides air volume for the centrifugal device 300 through the first air inlet 111.

Referring to fig. 4, the centrifugal device 300 includes a centrifugal blade 310 and a centrifugal volute 320, the centrifugal blade 310 is rotatably disposed in the centrifugal volute 320, the first centrifugal inlet 301, the second centrifugal inlet 302 and the centrifugal outlet 303 are disposed at different sides of the centrifugal volute 320, and the housing 110 has a second inlet communicated with the first centrifugal inlet 301.

Specifically, the first centrifugal inlet 301 and the centrifugal outlet 303 are disposed opposite to each other in the second direction, and the second centrifugal inlet 302 and the first inlet 111 are disposed coaxially in the first direction.

Referring to fig. 1 and fig. 2, an air duct machine in an embodiment includes a centrifugal device 300 and an axial flow device 400, the centrifugal device 300 is used for providing an air volume for the heat exchanging device 200, the axial flow device 400 is used for assisting in providing the air volume for the centrifugal device 300 and is disposed at a first air inlet 111 of the air duct machine, a cover 120 of the air duct machine is used for opening and closing the first air inlet 111, and a control method of the air duct machine includes the following steps:

controlling the air pipe machine to be in a cooling or heating mode;

detecting indoor environment temperature and compressor frequency;

the open/close state of the cover 120 and the frequency of the compressor are controlled according to the indoor ambient temperature and/or the frequency of the compressor.

According to the control method of the air duct machine, the opening and closing state of the cover body 120 and the frequency of the compressor are controlled according to the indoor environment temperature and/or the frequency of the compressor, so that the air quantity input into the heat exchange device 200 is controlled, and the energy consumption and the operation noise are favorably saved.

Specifically, referring to fig. 1 and 2, the step of controlling the open/close state of the cover 120 according to the indoor ambient temperature and/or the compressor frequency includes:

when T > T1 or F > F1, controlling the cover body 120 to increase the opening degree or the compressor to increase the frequency;

when T2 is more than or equal to T1 or F2 is more than or equal to F1, controlling the cover body 120 to reduce the opening or the frequency of the compressor;

and when T is less than or equal to T2 or F is less than or equal to F2, the cover body 120 is controlled to be closed.

Note that T1 and T2 are both temperature difference set values, and F1 and F2 are both frequency difference set values. Through the steps, the air quantity can be more accurately adjusted according to the actual air quantity, the comfort is improved, and the energy consumption is reduced.

For example, when T > T1 or F > F1 indicates that the difference between the actual air volume and the preset air volume is large, the opening degree of the cover 120 is controlled to be increased or the frequency of the compressor is controlled to be increased, so as to increase the air volume; when T2 is more than or equal to T1 or F2 is more than or equal to F1, the difference between the actual air volume and the preset air volume is small, and the cover body 120 is controlled to reduce the opening or the frequency of the compressor is controlled to reduce the air volume; when T is less than or equal to T2 or F is less than or equal to F2, the air volume can be kept in the original state, and the cover body 120 is controlled to be closed.

Referring to fig. 1 and 2, the method for controlling the ducted air conditioner further includes the following steps:

controlling the air pipe machine to switch to a self-cleaning mode;

the open and close states of the cover 120 are controlled according to different stages of the self-cleaning mode.

Through the above steps, the duct machine is switched to the self-cleaning mode, and the self-cleaning effect is enhanced by controlling the open/close state of the cover 120.

Specifically, the ducted air conditioner has two first air inlets 111 arranged oppositely along a first direction, and each first air inlet 111 is correspondingly provided with a cover 120;

when the air pipe machine is in the first self-cleaning stage, the two cover bodies 120 are controlled to keep different opening and closing states;

when the air pipe machine is in the second self-cleaning stage, the two cover bodies 120 are controlled to be in an open state;

when the air duct machine is in the third stage of self-cleaning, the two covers 120 are controlled to be in a closed state.

It can be understood that when the ducted air conditioner is in the first stage of self-cleaning, the two covers 120 are controlled to keep different open and close states, so that the air output of the opposite sides of the housing 110 along the first direction is different, and the air field is controlled to enable the evaporator to quickly dew; when the air pipe machine is in the second self-cleaning stage, the two cover bodies 120 are controlled to be in an open state, and a circulating wind field is created to quickly frost the evaporator; when the ducted air conditioner is in the third self-cleaning stage, both the cover bodies 120 are controlled to be in a closed state, so that the evaporator is rapidly heated.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A ducted air conditioner, comprising:

the shell comprises a shell (110) and a cover body (120), wherein a first air inlet (111) is formed in the shell (110), and the cover body (120) is movably arranged on the shell (110) to open and cover the first air inlet (111);

the heat exchange device (200) is arranged in the shell (110);

the centrifugal device (300) is arranged in the shell (110) and is used for providing air volume for the heat exchange device (200);

the axial flow device (400) is accommodated in the shell (110) and is arranged at the first air inlet (111); when the first air inlet (111) is opened, the axial flow device (400) provides air volume for the centrifugal device (300) in an auxiliary mode through the first air inlet (111).

2. The ducted air conditioner according to claim 1, further comprising a first drive mechanism (500), wherein the cover (120) is movably disposed on the housing (110), and wherein the first drive mechanism (500) is configured to drive the cover (120) to move in the first direction.

3. The ducted air conditioner according to claim 2, wherein the first driving device (500) includes a first driving member (510), a rack (520), and a gear (530), the gear (530) is engaged with the rack (520), the cover (120) is fixedly connected to the rack (520), and the first driving member (510) is configured to drive the gear (530) to rotate and drive the rack (520) to move.

4. The ducted air conditioner according to claim 1, wherein the housing (110) has two first air inlets (111) oppositely arranged along a first direction, each first air inlet (111) is correspondingly provided with at least one cover (120) and at least one axial flow device (400), and the first direction is an air inlet direction of the first air inlet (111).

5. The ducted air conditioner according to claim 4, further comprising a deflector ring (600) protruding from an inner wall of the casing (110), wherein the deflector ring (600) covers an outer periphery of the axial flow device (400) and is coaxially disposed with the axial flow device (400).

6. The ducted air conditioner according to claim 5, wherein the deflector ring (600) has a first end (601) and a second end (602) opposite to each other in the first direction, the first end (601) is close to the first air inlet (111), the second end (602) is close to the axial flow device (400), and an inner diameter of the first end (601) is smaller than an inner diameter of the second end (602).

7. The ducted air conditioner according to claim 4, further comprising a second drive device (700), an output shaft of the second drive device (700) being coaxially arranged with all of the axial flow device (400) and the centrifugal device (300) and being configured to power all of the axial flow device (400) and the centrifugal device (300).

8. The ducted air conditioner according to claim 4, wherein the heat exchanging device (200) includes an evaporator disposed within the housing (110) and arranged side by side with the centrifugal device (300) in a second direction, the second direction being perpendicular to the first direction.

9. The ducted air conditioner according to claim 1, wherein the centrifugal device (300) has a first centrifugal air inlet (301), a second centrifugal air inlet (302), and a centrifugal air outlet (303), the heat exchanging device (200) is disposed at the centrifugal air outlet (303), the axial flow device (400) is disposed at the first centrifugal air inlet (301), and the second centrifugal air inlet (302) is communicated with the outside.

10. The ducted air conditioner according to claim 9, wherein the centrifugal device (300) includes a centrifugal fan (310) and a centrifugal volute (320), the centrifugal fan (310) is rotatably disposed in the centrifugal volute (320), the first centrifugal air inlet (301), the second centrifugal air inlet (302), and the centrifugal air outlet (303) are disposed at different sides of the centrifugal volute (320), and the housing (110) is provided with a second air inlet communicated with the first centrifugal air inlet (301).

11. A control method of a ducted air conditioner, the ducted air conditioner comprises a centrifugal device (300) and an axial flow device (400), the centrifugal device (300) is used for providing air volume for a heat exchange device (200), the axial flow device (400) is used for providing air volume for the centrifugal device (300) in an auxiliary mode and is arranged at a first air inlet (111) of the ducted air conditioner, a cover body (120) of the ducted air conditioner is used for opening and closing the first air inlet (111), and the control method is characterized by comprising the following steps:

controlling the air pipe machine to be in a cooling or heating mode;

detecting indoor environment temperature and compressor frequency;

and controlling the opening and closing state of the cover body (120) and the frequency of the compressor according to the indoor environment temperature and/or the frequency of the compressor.

12. The control method of the duct type air conditioner according to claim 11, wherein the step of controlling the open/close state of the cover (120) according to the indoor ambient temperature and/or the compressor frequency includes:

controlling the cover body (120) to increase the opening degree or the compressor increase frequency when T > T1 or F > F1;

when T2 is more than or equal to T and less than or equal to T1 or F2 is more than or equal to F and less than or equal to F1, controlling the cover body (120) to reduce the opening or the compressor to reduce the frequency;

and when T is less than or equal to T2 or F is less than or equal to F2, controlling the cover body (120) to close.

13. The method of controlling a duct machine according to claim 12, further comprising the steps of:

controlling the air pipe machine to switch to a self-cleaning mode;

controlling the open and closed state of the cover (120) according to different stages of the self-cleaning mode.

14. The control method of the ducted air conditioner according to claim 13, wherein the ducted air conditioner has two first air inlets (111) oppositely arranged in a first direction, and one cover (120) is provided for each first air inlet (111);

when the air pipe machine is in a first self-cleaning stage, controlling the two cover bodies (120) to keep different opening and closing states;

when the air pipe machine is in a self-cleaning second stage, controlling the two cover bodies (120) to be in an open state;

and when the air pipe machine is in a third self-cleaning stage, controlling the two cover bodies (120) to be in a closed state.