CN111637548B

CN111637548B - Indoor air treatment device and working method thereof

Info

Publication number: CN111637548B
Application number: CN201910157077.2A
Authority: CN
Inventors: 陈华; 孔祥龙; 季磊; 杜壮壮
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2023-06-13
Anticipated expiration: 2039-03-01
Also published as: CN111637548A

Abstract

The invention relates to an indoor air treatment device and a working method thereof, wherein in the indoor air treatment device, an air flow path in an air flow distribution cavity is controlled and switched through a first valve plate and a second valve plate, so that a fresh air guiding working mode, an internal circulation working mode and a working mode for simultaneously guiding fresh air and internal circulation can be switched. The air flow paths of the air exhaust are independently arranged, and the indoor air treatment device can independently perform an air exhaust working mode, or the air exhaust working mode and any one of a fresh air guiding working mode, an internal circulation working mode and a working mode for simultaneously guiding fresh air and internal circulation are performed simultaneously. Therefore, the indoor air treatment device can conveniently realize compatible switching of various working modes, is very convenient to use, and can improve indoor air quality.

Description

Indoor air treatment device and working method thereof

Technical Field

The invention relates to an indoor air treatment device and a working method thereof, belonging to the technical field of indoor air purification treatment.

Background

With the development of industrialization, the content of harmful substances such as dust particles in the air is large due to industrial pollution, and the harmful substances can influence the physical health of people. Accordingly, various devices for purifying the air in the process chamber have been developed.

On the one hand, fresh air is required to be introduced indoors, but when the air quality of the outside is poor, it is necessary to purify fresh air introduced indoors from outdoors; on the other hand, the indoor air also needs internal circulation treatment, and the indoor air quality is sometimes polluted by harmful substances such as formaldehyde, so when the indoor air quality is poor, the indoor air also needs to be purified; on the other hand, it is also necessary to perform an air discharge process in the room, and to discharge the indoor air to the outside in time in order to rapidly discharge the indoor contaminated air.

There are some devices capable of purifying the indoor air in the prior art, but on one hand, these devices do not well satisfy various requirements such as fresh air introduction, internal circulation, and exhaust air treatment, and it is also difficult to effectively integrate various functions into the same device or to realize various functions simultaneously with poor compatibility between the various functions when the various functions are concentrated on the same device. On the other hand, the indoor installation conditions are different due to different indoor structures, and the air treatment device in the prior art is difficult to adapt to different installation conditions, so that the air treatment device is difficult to install, and can be well integrated with the indoor layout.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an indoor air treatment apparatus and an operating method thereof, which can improve indoor air quality and is convenient to use.

In order to achieve the above object, the present invention provides an indoor air treatment apparatus comprising:

the air inlet cavity, the air purifying cavity, the air flow distribution cavity and the air exhaust cavity; an air inlet fan is arranged in the air inlet cavity, an air purifying component is arranged in the air purifying cavity, and an air exhaust fan is arranged in the air exhaust cavity;

the air inlet cavity and the airflow distribution cavity are communicated with the air purification cavity;

the air inlet cavity is provided with an air supply opening used for communicating an indoor space;

the exhaust air cavity is provided with an air return opening used for communicating an indoor space and an air outlet used for communicating an outdoor space;

the air flow distribution cavity comprises a fresh air separation cavity and an air suction separation cavity, the fresh air separation cavity is communicated with the air purification cavity, and the fresh air separation cavity is communicated with the air suction separation cavity through a communication port; the fresh air separation cavity is provided with a first fresh air port and a second fresh air port which are used for communicating an outdoor space, and the air suction separation cavity is provided with an air suction port which is used for communicating an indoor space;

The first fresh air port is provided with a first valve plate, and the first valve plate is driven by a first driving mechanism; the second fresh air port is provided with a second valve plate, and the second valve plate is driven by a second driving mechanism.

As a first preferable embodiment of the indoor air treatment device of the present invention, the first valve plates are driven by the first driving mechanism to be movable to: a state of closing the first fresh air port, a state of closing the communication port, and a state of being located between the first fresh air port and the communication port; the second valve plate is driven by a second driving mechanism to close or open the second fresh air port.

As a second preferable embodiment of the indoor air treatment device of the present invention, the exhaust air chamber is not in communication with the air flow distribution chamber, the air purification chamber, or the intake air chamber.

As a third preferable technical scheme of the indoor air treatment device of the invention, the air inlet cavity, the air purifying cavity, the air flow distribution cavity and the air exhaust cavity are all arranged in the shell, the outer side surface of the shell comprises a first installation surface and a second installation surface which extend along the length direction of the shell, the first fresh air port is exposed from the first installation surface, the second fresh air port is exposed from the second installation surface, and one air outlet is exposed on each of the first installation surface and the second installation surface; the first mounting surface and the second mounting surface are respectively provided with a first mounting interface and a second mounting interface, and the indoor air treatment device can be mounted through the first mounting interface or the second mounting interface.

In the third preferred embodiment of the indoor air treatment device according to the present invention, the first mounting surface and the second mounting surface can be respectively attached to two walls of a corner. More preferably, the angle between the first mounting surface and the second mounting surface is a right angle.

As a fourth preferable technical scheme of the indoor air treatment device of the invention, the air suction separation cavity is provided with two air suction inlets, and the air inlet cavity is provided with two air supply inlets; the outer side surface of the shell further comprises a first connecting surface and a second connecting surface which extend along the length direction of the shell, one air supply opening and one air suction opening are exposed on the first connecting surface, and one air supply opening and one air suction opening are also exposed on the second connecting surface.

The indoor air treatment device also has a preferable technical scheme that a separation wall is arranged between the fresh air separation chamber and the induced draft separation chamber, and the communication port comprises a first communication port and a second communication port which are arranged on the separation wall;

the first valve plate is driven by a first driving mechanism to respectively move to: a state of closing the first fresh air port, a state of closing the first communication port, a state of being located between the first fresh air port and the first communication port;

The second valve plate is driven by a second driving mechanism to respectively move to: the state of closing the second fresh air port, the state of closing the second communication port and the state of being positioned between the second fresh air port and the second communication port.

Correspondingly, the invention provides a working method of the indoor air treatment device, which adopts the indoor air treatment device to work, and the first fresh air port is in a state of being isolated from the outdoor space; the method comprises the following working modes:

1) The fresh air introducing working mode comprises the following working steps:

1a) The first driving mechanism drives the first valve plate to move to a state of closing the communication port;

1b) The second driving mechanism drives the second valve plate to move to a state of opening the second fresh air port, and the second fresh air port is communicated with the outdoor space;

1c) Starting an air inlet fan to rotate, enabling fresh air in an outdoor space to sequentially pass through a second fresh air inlet and a fresh air separation cavity to enter an air purification cavity, purifying by an air purification assembly, and sequentially passing through an air inlet cavity and an air supply inlet to be sent into an indoor space;

2) The internal circulation working mode comprises the following working steps:

2a) The first driving mechanism drives the first valve plate to move to a state of opening the communication port; the communication port is used for communicating the fresh air separation cavity with the air suction separation cavity;

2b) The second driving mechanism drives the second valve plate to move to a state of closing the second fresh air port, and the second fresh air port is separated from the outdoor space;

2c) Starting an air inlet fan to rotate, and enabling air in the indoor space to enter an air purifying cavity sequentially through an air suction port, an air suction separating cavity, a communication port and a fresh air separating cavity, and then to be purified by an air purifying assembly and then sequentially sent into the indoor space through an air inlet cavity and an air supply port;

3) Simultaneously carries out the working mode of fresh air introduction and internal circulation, and comprises the following working steps:

3a) The first driving mechanism drives the first valve plate to move to a state that a communication port is opened, and the communication port communicates the fresh air separation cavity with the air suction separation cavity;

3b) The second driving mechanism drives the second valve plate to move to a state of opening the second fresh air port, and the second fresh air port is communicated with the outdoor space;

3c) Starting an air inlet fan to rotate, enabling fresh air in an outdoor space to sequentially pass through a second fresh air inlet and a fresh air separation cavity to enter an air purification cavity, purifying by an air purification assembly, and sequentially passing through an air inlet cavity and an air supply inlet to be sent into an indoor space; the air in the indoor space sequentially passes through the air suction port, the air suction separation cavity, the communication port and the fresh air separation cavity to enter the air purification cavity, and sequentially passes through the air inlet cavity and the air supply port to be sent into the indoor space after being purified by the air purification component.

As a first preferred embodiment of the method for operating an indoor air treatment device of the present invention, the method for operating an indoor air treatment device of the present invention further includes:

4) The exhaust working mode comprises the following working steps:

4a) And starting the exhaust fan to rotate, and exhausting the air in the indoor space to the outdoor space through the air return opening, the exhaust air cavity and the air outlet in sequence.

In the first preferred embodiment of the method for operating an indoor air treatment device according to the present invention, the air discharge operation mode may be performed simultaneously with any one of a fresh air introduction operation mode, an internal circulation operation mode, and an operation mode in which fresh air introduction and internal circulation are performed simultaneously.

The invention also provides a working method of the indoor air treatment device, which adopts the indoor air treatment device to work, and the second fresh air port is in a state of being isolated from the outdoor space; the method comprises the following working modes:

i) The fresh air introducing working mode comprises the following working steps:

ia) the first driving mechanism drives the first valve plate to move to a state of closing the communication port, and the first fresh air port is communicated with the outdoor space;

ib) starting an air inlet fan to rotate, wherein fresh air in the outdoor space sequentially passes through a first fresh air inlet and a fresh air separation cavity to enter an air purification cavity, and sequentially passes through an air inlet cavity and an air supply inlet to be sent into the indoor space after being purified by an air purification assembly;

II) an internal circulation working mode, comprising the following working steps:

II a) the first driving mechanism drives the first valve plate to move to a state of closing the first fresh air port, and the first fresh air port is isolated from the outdoor space;

II b) starting an air inlet fan to rotate, wherein air in the indoor space sequentially passes through an air suction port, an air suction separation cavity, a communication port and a fresh air separation cavity to enter an air purification cavity, and sequentially passes through the air inlet cavity and an air supply port to be sent into the indoor space after being purified by an air purification assembly;

III) simultaneously carrying out a working mode of fresh air introduction and internal circulation, comprising the following working steps:

IIIa) the first driving mechanism drives the first valve plate to move to a state between a first fresh air port and a communication port, the first fresh air port is communicated with the outdoor space, and the communication port is used for communicating the fresh air separation cavity with the induced draft separation cavity;

III b) starting an air inlet fan to rotate, and enabling fresh air in an outdoor space to sequentially pass through a first fresh air inlet and a fresh air separation cavity to enter an air purification cavity, and sequentially pass through the air inlet cavity and an air supply inlet to be sent into an indoor space after being purified by an air purification assembly; the air in the indoor space sequentially passes through the air suction port, the air suction separation cavity, the communication port and the fresh air separation cavity to enter the air purification cavity, and sequentially passes through the air inlet cavity and the air supply port to be sent into the indoor space after being purified by the air purification component.

As a first preferred embodiment of the method for operating the other indoor air treatment device, the method for operating the other indoor air treatment device further includes:

IV) an exhaust working mode, which comprises the following working steps:

IV a) starting the exhaust fan to rotate, and exhausting the air in the indoor space to the outdoor space through the air return opening, the exhaust air cavity and the air outlet in sequence.

On the basis of the working method of the other indoor air treatment device, the air exhaust working mode can be carried out simultaneously with any one of a fresh air intake working mode, an internal circulation working mode and a working mode for simultaneously taking fresh air intake and internal circulation.

As described above, the indoor air treatment device and the working method thereof according to the present invention have the following advantageous effects: in the indoor air treatment device, the first driving mechanism and the second driving mechanism can drive the first valve plate and the second valve plate to move, and the first valve plate and the second valve plate can control and switch the air flow paths in the air flow distribution cavity by controlling the first driving mechanism and the second driving mechanism, so that air enters the air flow distribution cavity from indoor or outdoor and enters the air purification cavity to be purified, and finally is sent to an indoor space through the air inlet cavity and the air supply port; the air flow paths in the air flow distribution cavity are controlled and switched through the first valve plate and the second valve plate, so that the fresh air guiding working mode, the internal circulation working mode and the working modes for simultaneously guiding fresh air and internal circulation are switched. The air flow paths of the air exhaust are independently arranged, and the indoor air treatment device can independently perform an air exhaust working mode, or the air exhaust working mode and any one of a fresh air guiding working mode, an internal circulation working mode and a working mode for simultaneously guiding fresh air and internal circulation are performed simultaneously. Therefore, the indoor air treatment device can conveniently realize compatible switching of various working modes according to the actual requirement of the indoor air quality, is very convenient to use, and can improve the indoor air quality.

Drawings

Fig. 1a shows a front view of an indoor air treatment device.

Fig. 1b shows a perspective view of the indoor air treatment device.

Fig. 1c shows a schematic view of the surrounding air flow delivered to the indoor space by the air cleaning and ventilation device, with the air flow indicated by the hollow arrows.

Fig. 2a shows a perspective view of the indoor air treatment device as seen from the left rear side.

Fig. 2b shows a perspective view of the indoor air treatment device from the right front side, with the first end cap, the main exterior finish and the second connection face removed.

Fig. 2c shows a perspective view of the indoor air treatment device, from the front side, with the first end cap, the primary exterior finish and the second connection face removed.

Fig. 3a shows a schematic structural view of an airflow distributor, where the first valve plate is in a state of closing the communication port, and the second valve plate is in a state of opening the second fresh air port.

Fig. 3b shows a schematic structural view of the airflow distributor, the first valve plate is in a state of closing the first fresh air port, and the second valve plate is in a state of closing the second fresh air port.

Fig. 3c shows a schematic structural view of the airflow distributor, the first valve plate is in a state between the first fresh air port and the communication port, and the second valve plate is in a state of opening the second fresh air port.

Fig. 3d shows a schematic structural view of the airflow distributor, the first valve plate is in a state of closing the first fresh air port, and the second valve plate is in a state of opening the second fresh air port.

Fig. 3e shows a schematic structural view of the airflow distributor, where the first valve plate is in a state of closing the communication port, and the second valve plate is in a state of closing the second fresh air port.

Fig. 3f shows a schematic structural view of an airflow distributor according to another embodiment.

Fig. 4 shows a schematic view of the air flow paths for introducing fresh air, internally circulating and exhausting air in the indoor air treatment device.

Fig. 5a shows a schematic view of a first mounting means of the indoor air treatment device, mounted to a wall through a first mounting surface.

Fig. 5b shows a schematic view of a second mounting means of the indoor air treatment device, mounted to a wall through a second mounting surface.

Fig. 5c is a schematic view showing a third mounting manner of the indoor air treatment device, wherein the first mounting surface and the second mounting surface are respectively attached to two walls.

Fig. 6a shows a schematic structural view of the back plate on the housing.

Fig. 6b shows a schematic structural view of the mounting plate and the hooks.

Fig. 6c shows a schematic structural view of the back plate hanging on the hooks of the mounting plate.

Description of element reference numerals

1. Outer casing

11. First end cap

12. Second end cap

13. Cover body

131. Main outer decorative surface

132. First connecting surface

133. Second connecting surface

134. Air grid

135. First mounting surface

136. Second mounting surface

137. First mounting interface

138. Second mounting interface

139. Display panel

14. Airflow distributor

141. Partition wall

21. Containing cavity

22. Air inlet air cavity

221. First air supply outlet

222. Second air supply outlet

23. Air purifying cavity

24. Airflow distribution chamber

241. Fresh air separation chamber

2411. First fresh air port

2412. Second fresh air port

2413. Communication port

2413a first communication port

2413b second communication port

242. Induced draft separation cell

2421. First air suction inlet

2422. Second air suction inlet

25. Exhaust air cavity

251. Air return port

252a first air outlet

252b second air outlet

31. Air intake fan

32. Air purifying assembly

33. Exhaust fan

41. First valve plate

42. First driving mechanism

43. Second valve plate

44. Second driving mechanism

5. Wall with a wall body

6. Mounting plate

61. Hook

7. Backboard

71. Mounting hole

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.

As shown in fig. 1a, which is a front view of the indoor air treatment apparatus as viewed from the front direction, in the following description, based on the drawing of fig. 1a as a reference basis of the direction, in fig. 1a, the main exterior surface 131 is located on the front side of the casing 13, the direction is the rear direction, the direction is the upward direction, the first end cover 11 is located on the upper end of the casing 13, the downward direction is the downward direction, the second end cover 12 is located on the lower end of the casing 13, the right direction is the right direction, the first connection surface 132 is connected to the right side of the main exterior surface 131, the left direction is the left direction, and the second connection surface 133 is connected to the left side of the main exterior surface 131. In describing the other views, the directions determined in fig. 1a are used as basis.

As shown in fig. 1a and 1b, the indoor air treatment device has a casing 1 with a cylindrical structure, the casing 1 includes a cylindrical cover 13, a first end cap 11 is installed at the upper end of the cover 13, a second end cap 12 is installed at the lower end of the cover 13, the front side of the cover 13 is a main outer decoration surface 131, the right side of the main outer decoration surface 131 is connected with a first connection surface 132, and the left side of the main outer decoration surface 131 is connected with a second connection surface 133. The main exterior surface 131 is further provided with a display panel 139 for displaying information (such as temperature, humidity, PM2.5 concentration, operation mode, etc.), so that a user can know the indoor air quality conveniently, and the operation state of the air treatment device can be adjusted conveniently.

As shown in fig. 2a, 2b and 2c, the indoor air treatment device includes:

an air inlet cavity 22, an air purifying cavity 23, an air flow distribution cavity 24 and an air exhaust cavity 25; the air inlet cavity 22 and the air flow distribution cavity 24 are communicated with the air purification cavity 23;

as shown in fig. 2b and 2c, an air inlet fan 31 is disposed in the air inlet chamber 22, an air purifying component 32 is disposed in the air purifying chamber 23, and an air exhaust fan 33 is disposed in the air exhaust chamber 25;

as shown in fig. 2b, the air inlet chamber 22 has air outlets 221/222 for communicating with the indoor space;

As shown in fig. 2a and 2b, the exhaust chamber 25 has a return air inlet 251 for communicating with the indoor space and an exhaust air outlet 252a/252b for communicating with the outdoor space;

as shown in fig. 2b and 2c, the air flow distributing body 14 is disposed in the casing 1, the air flow distributing cavity 24 is disposed in the air flow distributing body 14, as shown in fig. 3a, 3b, 3c, 3d and 3e, the air flow distributing cavity 24 includes a fresh air separating cavity 241 and an induced draft separating cavity 242, the fresh air separating cavity 241 is communicated with the air purifying cavity 23, as shown in fig. 3b and 3d, the fresh air separating cavity 241 is communicated with the induced draft separating cavity 242 through a communication opening 2413; the fresh air separation chamber 241 has a first fresh air inlet 2411 and a second fresh air inlet 2412 for communicating with the outdoor space, and the suction separation chamber 242 has suction inlets 2421/2422 for communicating with the indoor space;

as shown in fig. 3a, 3b, 3c, 3d and 3e, a first valve plate 41 is disposed at the first fresh air port 2411, and the first valve plate 41 is driven by a first driving mechanism 42; the second fresh air port 2412 is provided with a second valve plate 43, and the second valve plate 43 is driven by a second driving mechanism 44.

The indoor air treatment device can realize the following three basic working modes:

In the fresh air introducing operation mode, the air flow paths from OA to SA in fig. 4 are independently performed for sucking fresh air from the outdoor space and purifying the fresh air to the indoor space; after entering the air flow distribution chamber 24 from the first fresh air inlet 2411 or the second fresh air inlet 2412, the air flows into the air purification chamber 23, and the air inlet chamber 22 sucks the purified air from the air purification chamber 23 and sends the purified air into the indoor space from the air supply outlets 221/222;

an internal circulation operation mode in which the air flow paths RA2 to SA in fig. 4 are independently performed for sucking turbid air from the indoor space and purifying the turbid air before sending the purified turbid air to the indoor space; air flows into the air purifying chamber 23 after entering the air flow distribution chamber 24 from the air suction openings 2421/2422, and the air inlet chamber 22 sucks purified air from the air purifying chamber 23 and sends the purified air into the indoor space from the air supply openings 221/222;

the operation mode of simultaneously introducing fresh air and internal circulation is performed, and the air flow paths from OA to SA and from RA2 to SA in fig. 4 are simultaneously performed, so that fresh air is sucked from the outdoor space and purified and then sent to the indoor space, and turbid air is sucked from the indoor space and purified and then sent to the indoor space; the outdoor air flows into the air purifying chamber 23 after entering the air flow distribution chamber 24 from the first fresh air inlet 2411 or the second fresh air inlet 2412, and at the same time, the indoor air also flows into the air purifying chamber 23 after entering the air flow distribution chamber 24 from the air suction inlet 2421/2422, and the air inlet chamber 22 sucks the purified air from the air purifying chamber 23 and sends the purified air into the indoor space from the air supply inlet 221/222;

In addition, the indoor air treatment device can realize an air exhaust working mode, and the air exhaust cavity 25 is provided with an air return opening 251 used for communicating with the indoor space and an air exhaust opening 252a/252b used for communicating with the outdoor space; when the exhaust fan 33 rotates, air enters the exhaust air chamber 25 from the return air inlet 251 and is exhausted to the outdoor space through the exhaust air outlets 252a/252 b.

The three basic operation modes may be performed independently of each other, the exhaust operation mode may be performed independently of each other (i.e., the airflow paths of RA1 to EA in fig. 4 are performed independently), and the exhaust operation mode may be performed simultaneously with any one of the three basic operation modes.

The exhaust air chambers 25 are independently arranged, and the exhaust air chambers 25 are not communicated with the air flow distribution chamber 24, the air purification chamber 23 or the air inlet air chamber 22. Thus, when the indoor air treatment device performs air exhaust operation, the air flow exhausted can not collide with the air flow in the air flow distribution cavity 24, the air purification cavity 23 or the air inlet cavity 22 to cause turbulence and turbulence of the air flow, so that the normal operation of the internal circulation working mode and the fresh air guiding working mode can not be disturbed, and the independent air flow paths exhausted can effectively prevent the space occupied by the air flow distribution cavity 24, the air purification cavity 23 or the air inlet cavity 22 from being squeezed, thereby being beneficial to ensuring the fresh air introduction amount and finally ensuring the indoor air quality to meet the comfort requirement of users.

When the indoor air treatment device of the present invention is used, the indoor air treatment device is installed indoors, and the first fresh air port 2411 or the second fresh air port 2412 is communicated with the outdoor space; the indoor air treatment device can realize a fresh air leading working mode, an internal circulation working mode, a working mode for simultaneously leading fresh air and internal circulation, and an exhaust working mode or a combination of the exhaust working mode and any one of the working modes; in addition, as the air flow paths of the exhaust air are independently arranged, turbulent flow and turbulent flow can not be generated due to collision with other air flow paths; therefore, various working modes of the indoor air treatment device can be compatible, matched and combined, so that indoor air can be effectively treated, and the indoor air quality is improved.

In the indoor air treatment apparatus of the present invention, for convenience of manufacture, an air flow distribution body 14 is designed, an air flow distribution chamber 24 is provided in the air flow distribution body 14, as shown in fig. 3b and 3d, a partition wall 141 is provided between the fresh air partition chamber 241 and the suction air partition chamber 242, and a communication port 2413 is provided on the partition wall 141. In order to enable the airflow distribution chamber 24 to perform the function of switching the airflow paths, please refer to fig. 2b, 2c and fig. 3b and 3d, the upper end of the fresh air separation chamber 241 is communicated with the air purification chamber 23, while the upper end of the air suction separation chamber 242 is not communicated with the air purification chamber 23, so that the air entering the fresh air separation chamber 241 from the fresh air inlet can directly enter the air purification chamber 23, and the air entering the air suction separation chamber 242 from the air suction inlets 2421/2422 needs to enter the fresh air separation chamber 241 through the communication port 2413 before entering the air purification chamber 23. As shown in fig. 3b, 3c, 3d and 3e, the switching of the operation mode of an indoor air treatment device of the present invention can be achieved by controlling the first valve plate 41 and the second valve plate 43. The first driving mechanism 42 and the second driving mechanism 44 may be rotating motors, and the control device controls the rotation angle of the rotating shafts of the rotating motors, so that the opening degree of the first valve plate 41 or the second valve plate 43 can be controlled, and the air flow rate can be controlled according to the actual requirement of the indoor air quality. In addition, it is advantageous to ensure miniaturization of the air treatment device.

In the indoor air treatment device of the present invention, the first driving mechanism 42 and the second driving mechanism 44 respectively drive the first valve plate 41 and the second valve plate 43 to control the operation mode and the air flow rate of the indoor air treatment device of the present invention, as a preferred embodiment of the air flow distributor 14, as shown in fig. 3a, 3b, 3c, 3d and 3e, the first valve plate 41 is provided at the first fresh air port 2411, and the first valve plate 41 is driven by the first driving mechanism 42 to be respectively movable to: a state in which the first fresh air port 2411 is closed, a state in which the communication port 2413 is closed, and a state in which the first fresh air port 2411 is located between the communication port 2413 and the first fresh air port 2411; the second fresh air port 2412 is provided with a second valve plate 43, and the second valve plate 43 is driven by the second driving mechanism 44 to close or open the second fresh air port 2412, so that the structure is simple.

As another embodiment of the air flow distribution body 14, as shown in fig. 3f, the communication port 2413 includes a first communication port 2413a and a second communication port 2413b provided on a partition wall; the first valve plate 41 is driven by the first driving mechanism 42 to be movable to: a state in which the first fresh air port 2411 is closed, a state in which the first communication port 2413a is closed, and a state in which the first fresh air port 2411 is located between the first communication port 2413 a; the second valve plate 43 is driven by the second driving mechanism 44 to be movable to: a state in which the second fresh air port 2412 is closed, a state in which the second communication port 2413b is closed, and a state in which the second fresh air port 2412 and the second communication port 2413b are located; the first communication port 2413a is adjacent to the first valve plate 41 side, and the second communication port 2413b is adjacent to the second valve plate 43 side. Thus, the structure of the left and right sides of the airflow distribution body 14 is basically symmetrical, so that the airflow distribution body is convenient to manufacture and install; further, since both the first valve plate 41 and the second valve plate 43 are rotated inside the fresh air compartment, they do not protrude from the outer side wall of the air flow distributor, and therefore, the first valve plate 41 and the second valve plate 43 do not interfere with parts or walls outside the air flow distributor. In addition, since the movement modes of the first valve plate 41 and the second valve plate 43 are the same, whether the second fresh air port 2412 is plugged and fresh air is sucked through the first fresh air port 2411 or the first fresh air port 2411 is plugged and fresh air is sucked through the second fresh air port 2412, the control logic of the fresh air guiding working mode, the internal circulation working mode and the working mode for simultaneously guiding fresh air and internal circulation of the indoor air treatment device are the same, and the control mode is simpler, so that confusion is not easily caused when a user uses the indoor air treatment device.

As a preferred embodiment, as shown in fig. 3b, 3c, 3d and 3e, the suction separation chamber 242 has two suction openings, wherein one of the suction openings is a first suction opening 2421, and as shown in fig. 1a, the outer side surface of the housing 1 further includes a first connection surface 132 and a second connection surface 133 extending along the length direction of the housing 1, the first connection surface 132 is connected to the right side edge of the main outer surface 131, the second connection surface 133 is connected to the left side edge of the main outer surface 131, the first connection surface 132 exposes the first suction opening 2421, the second connection surface 133 exposes the second suction opening 2422, and the first connection surface 132 and the second connection surface 133 are further provided with air grids 134, so that the air flow entering the first suction opening 2421 and the second suction opening 2422 is relatively uniform, and the fingers of the user can be prevented from extending into the machine to contact with the rotating parts or the electric parts, thereby ensuring the safety of the user.

As shown in fig. 2a, 2b and 2c, the air inlet chamber 22, the air purifying chamber 23, the air flow distributing chamber 24 and the air discharging chamber 25 are all arranged in the casing 1 and are distributed in sequence from the first end to the second end of the casing 1. Thus, the overall columnar structure is convenient to install and can be well fused with the indoor space. As shown in fig. 1b, 2a and 2b, the first mounting surface 135 and the second mounting surface 136 are provided on the casing 1, the first fresh air inlet 2411 is exposed from the first mounting surface 135, the second fresh air inlet 2412 is exposed from the second mounting surface 136, one air outlet is exposed on each of the first mounting surface 135 and the second mounting surface 136, the air outlet exposed on the first mounting surface 135 is a first air outlet 252a, the air outlet exposed on the second mounting surface 136 is a second air outlet 252b, and the first mounting surface 135 and the second mounting surface 136 are provided with a first mounting interface 137 and a second mounting interface 138, respectively, and the indoor air treatment device can be mounted through the first mounting interface 137 or the second mounting interface 138. In this way, the indoor air treatment device can be selectively installed on the indoor wall 5 through the first installation interface 137 or the second installation interface 138 according to indoor installation conditions, the installation form is various, and the requirements of different installation environments can be met.

In order to adapt to the structural arrangement of the indoor air treatment device, as a preferred embodiment, as shown in fig. 2b and 2c, the air purifying assembly 32 is a cylindrical filter screen, so that the external structure of the air purifying assembly 32 can be well adapted to the air purifying cavity 23, and the space utilization rate is high. The filter screen can filter PM2.5 particles in the air, and can also be provided with some reactive substances capable of removing other pollutants such as formaldehyde and the like so as to remove harmful gas substances in the air in the indoor space or the outdoor space. Referring to fig. 2b and fig. 2c, as a preferred embodiment, one end of the air purifying chamber 23 is communicated with the air inlet chamber 22, the other end of the air purifying chamber 23 is communicated with the air distributing chamber 24, the upper end of the air purifying chamber 23 is communicated with the air inlet chamber 22, the lower end of the air purifying chamber 23 is communicated with the air distributing chamber 24, and the air in the air distributing chamber 24 flows into the air purifying chamber 23 and is purified by the purifying device, and then flows into the air inlet chamber 22, so that the cleanliness of the air finally fed into the room is ensured, and the user requirement is met.

When the indoor air treatment device is used, the air outlet 252a/252b and the fresh air outlet 2411/2412 are communicated with the outdoor space through pipelines, and air flows at the fresh air outlet 2411/2412 and the air outlet 252a/252b cannot disturb the air in the indoor space; in order to prevent the air flows at the air supply inlet 221/222, the air suction inlet 2421/2422 and the air return inlet 251 from being disturbed each other, the air supply inlet 221/222, the air suction inlet 2421/2422 and the air return inlet 251 are all positioned in the indoor space, as shown in fig. 1a, the air supply inlet 221/222 is arranged at the upper part of the casing 1, and the air suction inlet 2421/2422 is arranged at the lower part of the casing 1, so that the distance between the air supply inlet 221/222 and the air suction inlet 2421/2422 is far, and the effect of the mutual disturbance of the air flows at the two parts is weak; referring to fig. 1b and 2b, the return air inlet 251 is disposed on the end surface of the second end of the housing 1, so that the return air inlet 251 is not only far from the air supply inlet 221/222 and the air suction inlet 2421/2422, but also the direction of the return air inlet 251 is different from the air supply inlet 221/222 and the air suction inlet 2421/2422, and therefore, the air flow at the return air inlet 251 is not easy to influence the air flow at the air supply inlet 221/222 or the air suction inlet 2421/2422, so as to avoid the mutual interference between the air flows.

In order to facilitate the supply or control of the electrical components in the indoor air treatment device, the first end of the housing 1 is further provided with a cavity 21 for receiving the electrical components, as shown in fig. 2b and 2 c. Other electrical control elements such as power supplies, controllers, etc. may be provided in the cavity 21. The electrical components in the cavity 21 generate heat, if the cavity 21 is closer to the fresh air inlet 2411/2412 or the exhaust air outlet 252a/252b, the outdoor low-temperature air will make the temperature near the cavity 21 lower, and then the moisture in the air in the cavity 21 will generate condensation on the electrical components to affect the insulation performance of the electrical components, resulting in higher failure risk of the electrical components. In the indoor air treatment device of the present invention, the risk of condensation in the cavity 21 is low because the cavity 21 is far away from the fresh air inlet 2411/2412 and the air outlet 252a/252b, thereby improving the operational reliability of the electrical components, so that the indoor air treatment device of the present invention can maintain stable and normal operation.

In order to detect the PM2.5 concentration in the indoor space and the outdoor space air, an outdoor PM2.5 detection sensor may be further provided in the fresh air separation chamber 241, and an indoor PM2.5 detection sensor may be provided in the suction separation chamber 242. The outdoor PM2.5 detection sensor and the indoor PM2.5 detection sensor are connected with the control device, and the control device can control the movement of the first driving mechanism 42, the second driving mechanism 44, the air inlet fan 31 and the air exhaust fan 33 according to the data detected by the outdoor PM2.5 detection sensor and the indoor PM2.5 detection sensor, so that indoor air is regulated, and the control precision is high.

In order to make the air flow from the air supply openings 221/222 of the indoor air treatment device uniform, as shown in fig. 1a, the air inlet chamber 22 has two air supply openings 221/222, one air supply opening is respectively disposed on each of the first connection surface 132 and the second connection surface 133 on both sides of the main outer decoration surface 131, the air supply opening on the first connection surface 132 is the first air supply opening 221, and the air supply opening on the second connection surface 133 is the second air supply opening 222, so that the air is supplied from the first air supply opening 221 and the second air supply opening 222 to the indoor space, and the air inlet fan 31 can adopt a turbo fan, so that the air flow from the first air supply opening 221 and the second air supply opening 222 forms a surrounding air flow, as shown in fig. 1c, the air flow from the first air supply opening 221 flows to one side wall, the air flow from the second air supply opening 222 flows to the other side wall perpendicular, and the two air flows from opposite directions are converged along the wall, so that the air flow flows more uniformly spread into the whole indoor space, and the surrounding air is not blown on the human body, and the comfort of the human body is improved.

The indoor air treatment device of the invention can be well adapted to indoor space, as shown in fig. 5a, the indoor air treatment device can be selectively installed on the wall 5 between the window and the ground in a horizontal installation mode, the first installation surface 135 is attached to the wall 5, and the first fresh air inlet 2411 and the first air outlet 252a on the first installation surface 135 are connected with a pipeline leading to the outdoor space; the main exterior facing 131 faces in the direction of the ceiling to facilitate a human's top view of the display panel 139. As shown in fig. 5b, the indoor air treatment device may be mounted on the wall 5 at a higher position in a horizontal mounting manner, the second mounting surface 136 is attached to the wall 5, and the second fresh air port 2412 and the second air outlet 252b on the second mounting surface 136 are connected with a pipeline leading to the outdoor space; the first mounting surface 135 faces the ceiling and the main exterior surface 131 faces the ground to facilitate the human bottom view of the display panel 139. As shown in fig. 5c, the indoor air treatment device may be installed at a corner position in a vertical installation manner, and the first installation surface 135 and the second installation surface 136 may be respectively attached to two walls 5 at the corner in order to adapt to the installation manner at the corner. Typically, the angle between two walls 5 at the corner is a right angle, and the first mounting surface 135 and the second mounting surface 136 are attached to two perpendicular walls 5, respectively, so that the angle between the first mounting surface 135 and the second mounting surface 136 is a right angle. The first fresh air inlet 2411 and the first air outlet 252a on the first mounting surface 135 are connected with a pipeline leading to the outdoor space, or the second fresh air inlet 2412 and the second air outlet 252b on the second mounting surface 136 are connected with a pipeline leading to the outdoor space; when the first mounting surface 135 and the second mounting surface 136 are respectively attached to the two vertical walls 5, the main outer decoration surface 131 faces the horizontal direction, and the first air supply opening 221 and the second air supply opening 222 face the two vertical walls 5, so that air sent out from the first air supply opening 221 and the second air supply opening 222 is blocked by the two walls 5 respectively to form surrounding air flow, and the air flow is soft and distributed uniformly. Therefore, the indoor air treatment device can be horizontally installed or vertically installed, the display panel 139 can adapt to the horizontal installation or the vertical installation of the air purification assembly 32, the connection interface between the display panel 139 and the main exterior surface 131 can be set to be in a 90-degree rotation adaptive structure, after the display panel 139 is in adaptive installation with the main exterior surface 131, the display panel 139 can be rotated by 90 degrees, 180 degrees or 270 degrees along the plane of the display panel 139 and can be in adaptive connection with the connection interface on the main exterior surface 131 again, so that the angle of the display panel can be adjusted according to the installation mode of the air treatment device, and a user can conveniently read the content displayed by the display panel. Likewise, the first mounting interface 137 and the second mounting interface 138 can both accommodate horizontal mounting or vertical mounting of the air purifying assembly 32, and after the first mounting interface 137 or the second mounting interface 138 is adapted to be mounted with the connection interface on the wall 5, the first mounting interface 137 or the second mounting interface 138 can be rotated by 90 degrees, 180 degrees or 270 degrees along the plane thereof to be adapted to be connected with the connection interface on the wall 5 again.

In order to facilitate the installation of an indoor air treatment apparatus of the present invention on a wall 5, as shown in fig. 6a, a back plate 7 is connected to a housing 1 of an indoor air treatment apparatus of the present invention, as shown in fig. 6b, a mounting hole 71 is provided in the back plate 7, a mounting plate 6 is fixedly installed on the wall 5, a hook 61 is fixed to the mounting plate 6, and as shown in fig. 6c, the back plate 7 is hung on the hook 61 through the mounting hole 71, so that the indoor air treatment apparatus can be conveniently hung on the wall 5. The backboard 7, the mounting plate 6 and the hooks 61 can be made of sheet metal parts, the hooks 61 and the mounting plate 6 can be connected in a bolt connection or welding mode, and the structure is simple and the installation is convenient.

Here, we will describe an operation mode of an indoor air treatment apparatus according to the present invention in the case of different installation modes.

1. First installation mode

The indoor air treatment device is mounted on the wall 5 through the first mounting surface 135, and the first fresh air port 2411 and the first exhaust port 252a are attached to the wall 5 in a state of being blocked from the outdoor space, and at this time, each operation mode controls the first valve plate 41 and the second valve plate 43 as follows:

1) Referring to fig. 3a, the fresh air introducing operation mode includes the following operation steps:

1a) The first driving mechanism 42 drives the first valve plate 41 to move to a state of closing the communication opening 2413, so that the air suction separation chamber 242 is separated from the fresh air separation chamber 241, and only the fresh air separation chamber 241 is communicated with the air purification chamber 23;

1b) The second driving mechanism 44 drives the second valve plate 43 to move to a state of opening the second fresh air port 2412, and the second fresh air port 2412 communicates with the outdoor space, so that the outdoor space communicates with the indoor space sequentially through the second fresh air port 2412, the fresh air separation compartment 241, the air purification chamber 23, the air intake chamber 22, and the air supply ports 221/222;

1c) The air inlet fan 31 is started to rotate, the air inlet fan 31 provides airflow circulation power, fresh air in the outdoor space sequentially passes through the second fresh air opening 2412 and the fresh air separation cavity 241 to enter the air purification cavity 23, and after being purified by the air purification component 32, the fresh air sequentially passes through the air inlet cavity 22 and the air supply openings 221/222 to be sent into the indoor space; through adjusting the rotational speed of the air inlet fan 31, the air flow rate flowing to the indoor space can be adjusted, so that the air pressure of the indoor space can be adjusted, for example, by increasing the rotational speed of the air inlet fan 31, a large amount of outdoor air can flow to the indoor space after being purified, the air pressure of the indoor space can be larger than the air pressure of the outdoor space, so that the indoor space keeps positive pressure, outdoor turbid air is prevented from entering the room, and the cleanliness of the indoor air is further ensured.

2) Internal circulation working mode: please refer to fig. 3b, which includes the following steps:

2a) The first driving mechanism 42 drives the first valve plate 41 to move to a state of opening the communication port 2413; the communication port 2413 communicates the fresh air partition chamber 241 with the air suction partition chamber 242; thus, the air in the indoor space can enter the indoor space again through the air suction inlet 2421/2422, the air suction separation cavity 242, the communication port 2413, the fresh air separation cavity 241, the air purification cavity 23, the air inlet cavity 22 and the air supply openings 221/222 in sequence;

2b) The second driving mechanism 44 drives the second valve plate 43 to move to a state of closing the second fresh air port 2412, the second fresh air port 2412 is isolated from the outdoor space, and the first fresh air port 2411 is closely attached to the wall 5 and isolated from the outdoor space, so that air cannot enter the fresh air separating chamber 241 from the first fresh air port 2411 and the second fresh air port 2412, and only air flowing in the air suction separating chamber 242 can enter the fresh air separating chamber 241;

2c) The air inlet fan 31 is started to rotate, the air inlet fan 31 provides power for the flow of air, and under the driving of the air inlet fan 31, the air in the indoor space sequentially passes through the air suction inlet 2421/2422, the air suction separation cavity 242, the communication port 2413 and the fresh air separation cavity 241 to enter the air purification cavity 23, and after being purified by the air purification component 32, the air sequentially passes through the air inlet cavity 22 and the air supply ports 221/222 to return to the indoor space again;

3) And simultaneously carrying out the working modes of fresh air introduction and internal circulation: please refer to fig. 3c and 3d, which includes the following steps:

3a) The first driving mechanism 42 drives the first valve plate 41 to move to a state in which the communication port 2413 is opened, and the communication port 2413 communicates the fresh air partition chamber 241 with the suction partition chamber 242; thus, the air in the indoor space can enter the indoor space again through the air suction inlet 2421/2422, the air suction separation cavity 242, the communication port 2413, the fresh air separation cavity 241, the air purification cavity 23, the air inlet cavity 22 and the air supply openings 221/222 in sequence;

3b) The second driving mechanism 44 drives the second valve plate 43 to move to a state in which the second fresh air port 2412 is opened, and the second fresh air port 2412 communicates with the outdoor space; thus, the outdoor space is communicated with the indoor space through the second fresh air opening 2412, the fresh air separation chamber 241, the air purification chamber 23, the air inlet chamber 22 and the air supply openings 221/222 in sequence;

3c) The air inlet fan 31 is started to rotate, the air inlet fan 31 provides power for the flow of air, and fresh air in the outdoor space sequentially passes through the second fresh air opening 2412 and the fresh air separation cavity 241 to enter the air purification cavity 23, is purified by the air purification assembly 32 and then sequentially passes through the air inlet cavity 22 and the air supply openings 221/222 to be sent into the indoor space; the air in the indoor space sequentially passes through the air suction openings 2421/2422, the air suction separation cavity 242, the communication opening 2413 and the fresh air separation cavity 241 and enters the air purification cavity 23, and after being purified by the air purification component 32, the air is sequentially sent into the indoor space through the air inlet cavity 22 and the air supply openings 221/222, so that the quality of the air finally sent into the indoor space is ensured to meet the requirements of users.

The air flow rate entering the fresh air separation chamber 241 from the communication port 2413 can be adjusted by controlling the opening degree of the first valve plate 41, thereby adjusting the flow rate of the internal circulation air and the flow rate of the fresh air.

Further, the magnitude of the indoor air pressure can be adjusted by adjusting the opening degree of the first valve plate 41 and the rotation speed of the air intake fan 31. For example, by increasing the rotation speed of the air intake fan 31, a large amount of outdoor air flows to the indoor space after being purified, so that the air pressure in the indoor space is greater than that in the outdoor space, and the indoor space is kept at positive pressure, so that outdoor turbid air is prevented from entering the room, and the cleanliness of the indoor air is further ensured.

4) Air exhaust working mode: the indoor space is communicated with the outdoor space through the air return opening 251 and the second air outlet 252b, the air exhaust fan 33 is started to rotate, and the air in the indoor space is sequentially discharged to the outdoor space through the air return opening 251, the air exhaust air cavity 25 and the air outlet 252a/252 b. The air exhaust working mode can be independently carried out, and the air exhaust working mode can be carried out simultaneously with any one of the working modes of 1) the fresh air guiding working mode, 2) the internal circulation working mode and 3) the working modes of simultaneously guiding fresh air and internal circulation.

The pressure of the indoor air can be regulated by controlling the rotation speed of the exhaust fan 33, and the rotation speed of the exhaust fan 33 is increased, so that more indoor air is discharged to the outside, the indoor air pressure can be reduced, and thus the indoor turbid air is discharged to the outside, and meanwhile, the indoor turbid air is prevented from diffusing to other rooms.

2. Second installation mode

The indoor air treatment device is mounted on the wall 5 through the second mounting surface 136, and the second fresh air inlet 2412 and the second air outlet 252b are attached to the wall 5 and are in a state of being blocked from the outdoor space, and at this time, each operation mode controls the first valve plate 41 and the second valve plate 43 as follows:

i) Referring to fig. 3e, the fresh air introducing operation mode includes the following operation steps:

ia) the first driving mechanism 42 drives the first valve plate 41 to move to a state of closing the communication port 2413, and the first fresh air port 2411 communicates with the outdoor space; in this way, the air suction separation chamber 242 is separated from the fresh air separation chamber 241, and only the fresh air separation chamber 241 is communicated with the air purification chamber 23; the outdoor space is communicated with the indoor space through a first fresh air inlet 2411, a fresh air separation chamber 241, an air purification chamber 23, an air inlet chamber 22 and air supply outlets 221/222 in sequence;

Ib) starting the air inlet fan 31 to rotate, wherein the air inlet fan 31 provides power for the flow of air, and fresh air in the outdoor space sequentially passes through the first fresh air inlet 2411 and the fresh air separation chamber 241 to enter the air purification cavity 23, passes through the air purification assembly 32 to be purified and then sequentially passes through the air inlet cavity 22 and the air supply openings 221/222 to be sent into the indoor space under the driving of the air inlet fan 31;

II a) the first driving mechanism 42 drives the first valve plate 41 to move to a state of closing the first fresh air port 2411, and the first fresh air port 2411 is isolated from the outdoor space; the second fresh air port 2412 is attached to the wall 5 and is isolated from the outdoor space, so that air cannot enter the fresh air separation chamber 241 from the first fresh air port 2411 or the second fresh air port 2412; the communication opening 2413 is in an open state, the communication opening 2413 communicates the air suction separation chamber 242 with the fresh air separation chamber 241, and the air in the indoor space can sequentially pass through the air suction openings 2421/2422, the air suction separation chamber 242, the communication opening 2413, the fresh air separation chamber 241, the air purification chamber 23, the air inlet chamber 22 and the air supply openings 221/222 to enter the indoor space again;

II b) starting the air inlet fan 31 to rotate, wherein the air inlet fan 31 provides power for the air flowing, and under the driving of the air inlet fan 31, the air in the indoor space sequentially passes through the air suction inlet 2421/2422, the air suction separation cavity 242, the communication port 2413 and the fresh air separation cavity 241 to enter the air purification cavity 23, and then sequentially passes through the air inlet cavity 22 and the air supply ports 221/222 to be sent into the indoor space after being purified by the air purification component 32;

IIIa) the first driving mechanism 42 drives the first valve plate 41 to move to a state between the first fresh air port 2411 and the communication port 2413, the first fresh air port 2411 communicates with the outdoor space, and the communication port 2413 communicates the fresh air partition chamber 241 with the suction partition chamber 242; thus, the air in the outdoor space can flow into the indoor space through the first fresh air inlet 2411, the fresh air separating chamber 241, the air purifying chamber 23, the air inlet chamber 22 and the air supply openings 221/222 in sequence, and the air in the indoor space can flow back into the indoor space through the air suction openings 2421/2422, the air suction separating chamber 242, the communication opening 2413, the fresh air separating chamber 241, the air purifying chamber 23, the air inlet chamber 22 and the air supply openings 221/222 in sequence;

III b) starting the air inlet fan 31 to rotate, wherein the air inlet fan 31 provides power for the air flowing, and fresh air in the outdoor space sequentially passes through the first fresh air inlet 2411 and the fresh air separation chamber 241 to enter the air purification cavity 23, passes through the air purification assembly 32 to be purified and then sequentially passes through the air inlet cavity 22 and the air supply openings 221/222 to be sent into the indoor space under the driving of the air inlet fan 31; the air in the indoor space enters the air purifying chamber 23 through the air suction openings 2421/2422, the air suction separating chamber 242, the communication opening 2413 and the fresh air separating chamber 241 in sequence, and is purified by the air purifying assembly 32 and then sequentially enters the indoor space through the air inlet chamber 22 and the air supply openings 221/222.

The magnitude of the introduced fresh air flow rate and the internal circulation air flow rate can be adjusted by controlling the magnitude of the opening of the first valve plate 41.

IV) exhaust operation mode: the indoor space is communicated with the outdoor space through the air return opening 251 and the first air outlet 252a, the air exhaust fan 33 is started to rotate, and the air in the indoor space is sequentially discharged to the outdoor space through the air return opening 251, the air exhaust air cavity 25 and the air outlet 252a/252 b.

The air exhaust operation mode can be independently performed, or can be performed simultaneously with any one of the above-mentioned operation modes capable of simultaneously performing the fresh air intake operation mode of I), the internal circulation operation mode of II), and the internal circulation operation mode of III).

Based on the technical scheme of the embodiment, the indoor air treatment device can realize compatibility of various working modes, and various working modes can be matched and combined, so that indoor air can be effectively treated, and the indoor air quality is improved. And because the air flow paths of the exhaust air are independently arranged, turbulent flow and turbulent flow can not be generated due to collision with other air flow paths, so that the indoor air treatment device has better working performance and better user experience. In addition, the indoor air treatment device can be provided with a plurality of mounting modes, can select proper mounting modes according to different indoor mounting environments, can be well suitable for arrangement of indoor spaces, can be mounted on a wall at a lower position and a wall at a higher position, can also be suitable for mounting at a corner position, and can control the opening of a first fresh air port, a second fresh air port and a communication port skillfully by means of ingenious design of an air flow distribution cavity, so that the aim of controlling air flow is fulfilled, and the purposes of switching fresh air introducing working modes, internal circulation working modes and working modes for simultaneously introducing fresh air and internal circulation are realized. The indoor air treatment device can simplify the control mode, has reasonable structural layout and smaller volume, and saves the indoor space.

In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. An indoor air treatment apparatus, comprising:

the air flow distribution cavity comprises a fresh air separation cavity and an air suction separation cavity, the fresh air separation cavity is communicated with the air purification cavity, and the fresh air separation cavity is communicated with the air suction separation cavity through a communication port; the fresh air separation cavity is provided with a first fresh air port and a second fresh air port which are used for communicating an outdoor space, and the air suction separation cavity is provided with an air suction port which is used for communicating an indoor space; the first fresh air port is provided with a first valve plate, and the first valve plate is driven by a first driving mechanism; a second valve plate is arranged at the second fresh air port and is driven by a second driving mechanism;

When the fresh air separation cavity is communicated with the outdoor space through the first fresh air port to conduct a fresh air introduction working mode, the first valve plate is positioned at a position for opening the first fresh air port;

when the fresh air inlet is communicated with the outdoor space through the second fresh air opening of the fresh air separation cavity to conduct the fresh air guiding working mode, the first valve plate is located at the position for sealing the communication opening, and the second valve plate is located at the position for opening the second fresh air opening.

2. An indoor air treatment device according to claim 1, wherein: when the first fresh air port of the fresh air separation cavity is communicated with the outdoor space to perform an internal circulation working mode, the first valve plate is positioned at a position for closing the first fresh air port;

when the second fresh air port of the fresh air separation cavity is communicated with the outdoor space to perform an internal circulation working mode, the second valve plate is positioned at a position for sealing the second fresh air port;

when the first fresh air port of the fresh air separation cavity is communicated with an outdoor space and a working mode of introducing fresh air and internal circulation is performed at the same time, the first valve plate is positioned between the first fresh air port and the communication port;

when the second fresh air port of the fresh air separation cavity is communicated with the outdoor space and the working mode of fresh air introduction and internal circulation is performed at the same time, the first valve plate is positioned at a position between the first fresh air port and the communication port or at a position for sealing the first fresh air port, and the second valve plate is positioned at a position for opening the second fresh air port.

3. An indoor air treatment device according to claim 1, wherein: a partition wall is arranged between the fresh air partition cavity and the air suction partition cavity, and the communication port comprises a first communication port and a second communication port which are arranged on the partition wall;

4. An indoor air treatment device according to claim 1, wherein: the exhaust air cavity is not communicated with the airflow distribution cavity, the air purification cavity or the air inlet air cavity.

5. An indoor air treatment device according to claim 1, wherein: the air inlet cavity, the air purifying cavity, the air flow distribution cavity and the air exhaust cavity are all arranged in the shell, the outer side surface of the shell comprises a first installation surface and a second installation surface which extend along the length direction of the shell, the first fresh air port is exposed from the first installation surface, the second fresh air port is exposed from the second installation surface, and an air outlet is respectively exposed from the first installation surface and the second installation surface; the first mounting surface and the second mounting surface are respectively provided with a first mounting interface and a second mounting interface, and the indoor air treatment device can be mounted through the first mounting interface or the second mounting interface.

6. An indoor air treatment unit according to claim 5, wherein: the first mounting surface and the second mounting surface can be respectively attached to two walls of a corner.

7. An indoor air treatment unit according to claim 6, wherein: the included angle between the first installation surface and the second installation surface is a right angle.

8. An indoor air treatment device according to claim 1, wherein: the air suction separation cavity is provided with two air suction inlets, and the air inlet cavity is provided with two air supply inlets; the outer side surface of the shell further comprises a first connecting surface and a second connecting surface which extend along the length direction of the shell, one air supply opening and one air suction opening are exposed on the first connecting surface, and one air supply opening and one air suction opening are also exposed on the second connecting surface.

9. A method of operating an indoor air treatment apparatus, characterized in that the indoor air treatment apparatus of claim 1 is used for operation, and the first fresh air port is in a state of being isolated from an outdoor space; the method comprises the following working modes:

2) The internal circulation working mode comprises the following working steps:

10. The method of operating an indoor air treatment unit of claim 9, further comprising:

4) The exhaust working mode comprises the following working steps:

11. A method of operating an indoor air treatment unit according to claim 10, wherein:

the exhaust operation mode can be simultaneously carried out with any one of a fresh air introduction operation mode, an internal circulation operation mode and an operation mode for simultaneously introducing fresh air and internal circulation.

12. A working method of an indoor air treatment device, characterized in that the indoor air treatment device of claim 1 is adopted for working, and a second fresh air port is in a state of being isolated from an outdoor space; the method comprises the following working modes:

ib) starting an air inlet fan to rotate, wherein fresh air in the outdoor space sequentially passes through a first fresh air inlet and a fresh air separation cavity to enter an air purification cavity, and sequentially passes through an air inlet cavity and an air supply inlet to be sent into the indoor space after being purified by an air purification assembly; II) an internal circulation working mode, comprising the following working steps:

IIa) the first driving mechanism drives the first valve plate to move to a state of closing the first fresh air port, and the first fresh air port is isolated from the outdoor space;

IIb) starting an air inlet fan to rotate, wherein air in the indoor space sequentially passes through an air suction port, an air suction separation cavity, a communication port and a fresh air separation cavity to enter an air purification cavity, and sequentially passes through the air inlet cavity and an air supply port to be sent into the indoor space after being purified by an air purification assembly;

13. The method of operating an indoor air treatment unit of claim 12, further comprising:

IV) an exhaust working mode, which comprises the following working steps:

14. A method of operating an indoor air treatment unit according to claim 13, wherein: