CN217844175U

CN217844175U - Fresh air device and air conditioner

Info

Publication number: CN217844175U
Application number: CN202222028369.6U
Authority: CN
Inventors: 商竹贤; 朱勇强; 俞旭; 田振; 尚彬; 陈伟
Original assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Current assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-18
Anticipated expiration: 2032-07-29

Abstract

The application provides a new trend device and air conditioner relates to air conditioner technical field. In the new trend device that this application embodiment provided, because the first chamber has set up dirty wind gap and purification mouth, the second chamber has set up indoor air exit and outdoor air exit, consequently, can realize blowdown function and purification performance. In addition, because the fresh air filter element separates a first area and a second area, the sewage opening and the air inducing opening are positioned in the first area, and the purifying opening is positioned in the second area, when the indoor air purifier is used in a purifying function, the indoor air can pass through the first filter element, so that the indoor air is purified; when the pollution discharge function is used, indoor dirty air cannot pass through the first filtering piece, pollutants in indoor air can be discharged to the outside as much as possible, and excessive burden on the filtering piece cannot be caused. Therefore, use the new trend device that this application embodiment provided, can realize purification performance and blowdown function, can guarantee the quality of room air better.

Description

Fresh air device and air conditioner

Technical Field

The utility model relates to an air conditioner technical field particularly, relates to a new trend device and air conditioner.

Background

At present, the household air conditioner usually adopts internal circulation, namely indoor air enters the air conditioner to exchange heat with a heat exchanger and then returns to the indoor again, and the indoor air is not replaced with outdoor air through the air conditioner. This circulation mode results in poor indoor air quality after long-term use of the air conditioner, especially in the case of tight closing of doors and windows when the air conditioner is in use. Therefore, some air conditioners are provided with fresh air devices to introduce outdoor air, but the functions of the fresh air devices are single at present, and the requirements of users for purifying indoor air cannot be met well.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how to enrich the function of new trend device to satisfy user purification room air's demand better.

In order to solve the problems, in a first aspect, the utility model provides a fresh air device, which comprises a shell, a first filter element and a fan blade, wherein the first filter element and the fan blade are arranged in the shell, a first cavity and a second cavity are formed in the shell, the first cavity is provided with a purification port and a dirty air port, the purification port is used for being communicated with the interior of a room, the dirty air port is used for being communicated with the interior of the room, the first cavity is communicated with the second cavity through an air induction port, and the fan blade is used for leading air in the first cavity to the second cavity through the air induction port; the first filter piece is arranged in the first cavity, is opposite to the purification port and is used for filtering air entering the first cavity from the purification port, and the sewage port and the purification port can be selectively opened or closed; the second cavity has indoor air exit and outdoor air exit, and indoor air exit is used for communicateing indoorly, and outdoor air exit is used for communicateing outdoors, and indoor air exit and outdoor air exit all can selectively open or close.

In this application embodiment, close at purification mouth, indoor air exit, and dirty wind gap, under the condition that outdoor air exit was opened, indoor air can be under the drive of fan blade, passes through dirty wind gap, first chamber, induced air mouth, second chamber, outdoor air exit in proper order to reach outdoors, play the function of initiative blowdown. And under the condition that purification mouth, indoor air exit are opened, and dirty wind gap, outdoor air exit are closed, outdoor air can pass through purification mouth, first filter piece, first chamber, induced air mouth, second chamber, indoor air exit in proper order to reach indoorly, realize purification performance. Therefore, the fresh air device provided by the embodiment of the application can realize a pollution discharge function and a purification function. And, when using the purification performance, indoor dirty wind can pass through first filter piece, and when using the blowdown function, indoor dirty wind can not pass through first filter piece, can discharge the pollutant that exists in the indoor air as far as outdoor, can not cause too much burden to filtering the piece in addition. Therefore, use the new trend device that this application embodiment provided, can realize purification performance and blowdown function to can guarantee the quality of indoor air better.

In an optional embodiment, the first cavity and the second cavity are arranged in the first direction and are separated by a partition board, the air inducing opening is arranged on the partition board, and the sewage opening and the purification opening are both arranged on one side of the first cavity, which is far away from the second cavity in the first direction. In use in an air conditioner, particularly a wall-mounted air conditioner, the first direction may be horizontal, in which case the indoor air is directed laterally into the fresh air device when the blowdown or purification function is activated. And dirty wind gap, purification mouth set up in the first chamber and keep away from the one side of second chamber in the first direction, can make dirty wind gap, purification mouth be located the left side or the right side of air conditioner for dirty wind gap and purification mouth keep away from the heat transfer air intake at air conditioner top as far as possible, avoid the air inlet of air conditioner main part to influence dirty wind gap, purification mouth air inlet and lead to blowdown ability, purification ability to descend.

In an optional embodiment, the fan blade is a centrifugal fan blade arranged in the second cavity, an axial air inlet side of the fan blade faces the induced air port, and the indoor air outlet and the outdoor air outlet are both located on one side of the fan blade in the radial direction. Under the condition that the first cavity, the second cavity and the air conditioner main body are sequentially arranged, the indoor air outlet and the induced draft opening are mutually vertical. The centrifugal fan blade has the characteristics of axial air inlet and radial air outlet, and can be well suitable for the condition that an indoor air outlet and an induced draft opening are mutually vertical.

In an optional embodiment, the first cavity and the second cavity are arranged in the first direction and are separated by a partition plate, the air induction port is arranged in the partition plate, the second filter piece is further arranged in the first cavity, the first cavity comprises a first area and a second area, the first area and the second area are separated by the second filter piece, the air induction port and the dirty air port are located on the side wall of the first area, the purification port is located on the side wall of the second area, and the first filter piece is arranged in the second area. The sewage air inlet and the air inducing port are arranged on the side wall of the first area, so that indoor air is directly exhausted outdoors without passing through the filtering piece after entering from the sewage air inlet; and the gas that the purification mouth got into then can carry out stronger filtration through first filtering piece and second filtering piece, guarantees indoor air quality better.

In an alternative embodiment, the first chamber is provided with a first support plate and a second support plate on two inner walls opposite to each other in the first direction, wherein the second support plate is provided on the partition plate, two ends of the second filter member are respectively connected to the first support plate and the second support plate, and the first support plate, the second filter member and the second support plate together divide the first chamber into a first area and a second area.

In an alternative embodiment, the first support plate and the second support plate are positioned differently in a second direction, and the second filter member is plate-shaped and inclined to the first direction in which an end of the second filter member connected to the second support plate is closer to the partition plate than an end of the second filter member connected to the first support plate, and the second direction perpendicular to the first direction. In the embodiment, the inclined second filter element can increase the area of the second filter element, thereby improving the purification effect; a reducing flow passage is formed between the second filter element and the partition plate; the induced air resistance of indoor air entering from the dirty air port can be reduced.

In an alternative embodiment, a third support plate is further disposed in the second region, the third support plate and the first support plate are disposed on the inner wall of the first cavity on the same side, the first support plate and the third support plate are respectively located on two opposite sides of the purification port, and two ends of the first filter member are respectively connected to the first support plate and the third support plate and cover the purification port.

In an alternative embodiment, the first support plate and the third support plate are slidably fitted to the first filter member, and the housing is provided with a first mounting opening for allowing the first filter member to be drawn out of or inserted into the first cavity. Through with first filtration piece and first backup pad and third backup pad sliding fit to set up first installing port, can make the loading and unloading of first filtration piece more convenient.

In an alternative embodiment, the first support plate and the second support plate are slidably engaged with the second filter member, and the housing is provided with a second mounting opening for allowing the second filter member to be drawn out of or inserted into the first cavity. Through filtering the second and filtering piece and first backup pad and second backup pad sliding fit to set up the second installing port, can make the second filter the loading and unloading of piece more convenient.

In an alternative embodiment, the fresh air device further comprises a switching component for selectively opening one of the indoor air outlet and the outdoor air outlet and simultaneously plugging the other. Because the indoor air outlet and the outdoor air outlet can not be used at the same time, one of the indoor air outlet and the outdoor air outlet is selectively opened through the switching component, the use of a driving mechanism (such as a motor) can be reduced, the structure is compact, and the cost is reduced.

In an optional embodiment, the switching component includes a first rotary damper rotatably connected to the inner wall of the second chamber, and the first rotary damper is rotatable to selectively open the indoor air outlet and simultaneously block the outdoor air outlet, or open the outdoor air outlet and simultaneously block the indoor air outlet.

In an optional implementation manner, the fresh air device further comprises an air valve, the air valve is installed on the outer side of the shell and is communicated with the outdoor air outlet and the fresh air inlet, and a main valve port used for being communicated with the outside is formed in the air valve. Through setting up the blast gate, can make two openings of new trend device and outdoor intercommunication gather into a total valve port, reduced trompil quantity on the wall body like this, simplified the cooperation relation of new trend device and wall body.

In an alternative embodiment, a sliding door is provided on the housing, the sliding door being slidable to selectively open one of the dirt opening and the purge opening.

In a second aspect, the present invention provides an air conditioner, including the air conditioner main body and the fresh air device of any one of the foregoing embodiments, the first chamber, the second chamber and the air conditioner main body are arranged in the length direction of the air conditioner in sequence.

Drawings

FIG. 1 is a schematic view of a fresh air device from a first perspective according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a fresh air device from a second perspective in an embodiment of the present disclosure;

FIG. 3 is a first cross-sectional view of a fresh air device in a fresh air mode according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a fresh air device with a removable air valve according to an embodiment of the present application;

FIG. 5 is an exploded view of a fresh air device according to an embodiment of the present application;

FIG. 6 is a second cross-sectional view of a fresh air device in a fresh air mode according to an embodiment of the present disclosure;

FIG. 7 is a third cross-sectional view of a fresh air device in a fresh air mode according to an embodiment of the present disclosure;

FIG. 8 is a first cross-sectional view of a fresh air device in a blowdown mode according to an embodiment of the present application;

FIG. 9 is a second cross-sectional view of a fresh air device in a blowdown mode according to an embodiment of the present application;

FIG. 10 is a third cross-sectional view of a fresh air device in a blowdown mode according to an embodiment of the present application;

FIG. 11 is a first cross-sectional view of a fresh air device in a purge mode according to an embodiment of the present application;

FIG. 12 is a second cross-sectional view of a fresh air device in a purge mode according to an embodiment of the present application;

fig. 13 is a schematic view of an air conditioner according to an embodiment of the present application.

Description of reference numerals: 010-an air conditioner; 100-a fresh air device; 110-a housing; 111-mesochite; 112-a separator; 113-an induced draft; 114-a support frame; 115-an end plate; 116-a first support plate; 117-second support plate; 118-a third support plate; 119-a volute; 120-a first cavity; 121-a first area; 122-a second region; 123-fresh air port; 124-a purification port; 125-sewage port; 126-a sliding door; 130-a second cavity; 131-indoor air outlet; 132-outdoor exhaust outlet; 140-fan blades; 150-a second filter element; 151-a second filter frame; 160-a first filter element; 161-a first filter frame; 170-air valve; 171-bus port; 172-a first rotary damper; 173-a second rotary damper; 200-an air conditioner main body; 210-an air inlet; 220-air outlet.

Detailed Description

The air conditioner is usually to close door and window in the use, reduces indoor air conditioning or heating to outside scattered, and current domestic air conditioner often is the inner loop, and the air conditioner itself can not exchange indoor air and outdoor air. If gas exchange is not performed indoors or outdoors for a long time, indoor air quality may be degraded, for example, the concentration of carbon dioxide may be increased, and the concentration of harmful organic volatile matters may be increased. In the related art, an air conditioner with a fresh air function can introduce outdoor fresh air through a fresh air device to improve indoor air quality. However, the existing fresh air device has single function and only has the function of introducing fresh air, so that the effect of improving the air quality is difficult to further improve.

In order to overcome the defects in the prior art, the embodiment of the application provides the fresh air device, which can discharge indoor air to the outdoor pollution discharge function through one fan blade, and purify indoor air through indoor circulation, so that the indoor air quality is improved.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a schematic view of a fresh air device 100 in a first viewing angle according to an embodiment of the present application; FIG. 2 is a schematic view of a fresh air device 100 from a second perspective according to an embodiment of the present disclosure; fig. 3 is a first cross-sectional view of a fresh air device 100 in a fresh air mode according to an embodiment of the present disclosure. As shown in fig. 1 to fig. 3, the fresh air device 100 according to the embodiment of the present application includes a housing 110, and a fan blade 140 and a second filter 150 disposed in the housing 110. A first chamber 120 and a second chamber 130 are formed in the housing 110, in this embodiment, the first chamber 120 and the second chamber 130 are arranged in a first direction and are separated by a partition plate 112, an air induction port 113 is disposed on the partition plate 112, and the fan blade 140 is used for inducing air in the first chamber 120 to the second chamber 130 through the air induction port 113.

The first chamber 120 has a dirty air port 125, a clean air port 124, and a fresh air port 123, the clean air port 124 and the dirty air port 125 are used for communicating indoors, and the fresh air port 123 is used for communicating outdoors. The first chamber 120 communicates with the second chamber 130 through the air induction port 113, the first chamber 120 includes a first area 121 and a second area 122, the first area 121 and the second area 122 are partitioned by the second filter 150, the air induction port 113 and the dirty air port 125 are located on a sidewall of the first area 121, the clean port 124 and the fresh air port 123 are located on a sidewall of the second area 122, and the fresh air port 123, the clean port 124, and the dirty air port 125 may be selectively opened or closed. The first filter 160 is disposed in the second region 122.

The second chamber 130 has an indoor air outlet 131 and an outdoor air outlet 132 (see fig. 4), the indoor air outlet 131 is used to communicate with the indoor, the outdoor air outlet 132 is used to communicate with the outdoor, and both the indoor air outlet 131 and the outdoor air outlet 132 can be selectively opened or closed.

It can be seen that, in the embodiment of the present application, the fresh air device 100 can implement the active pollution discharge function by providing the sewage opening 125 on the casing 110, and can implement the indoor air purification function by providing the purification opening 124 through internal circulation. Moreover, since the second filter 150 separates the first area 121 and the second area 122, the induced air opening 113 and the fresh air opening 123 are located in different areas, and the clean air opening 124 is also located in different areas, and the dirty air opening 125 and the induced air opening 113 are located in the same area, when the dirty air opening 125 is opened (the fresh air opening 123 and the clean air opening 124 are closed) to discharge dirt, the indoor air entering from the dirty air opening 125 can be directly sucked into the second chamber 130 by the fan blade 140 without passing through the second filter 150, and finally discharged to the outdoor through the outdoor air outlet 132; when the indoor air is purified by opening the purification port 124 (closing the fresh air port 123 and the purification port 124), the indoor air can pass through the first filter 160 and the second filter 150, and then enter the second chamber 130, and finally be discharged into the indoor through the indoor air outlet 131. When the fresh air inlet 123 is opened (the dirty air inlet 125 is closed), the fresh air enters the first chamber 120, passes through the second filter 150 from the second region 122, enters the first region 121, is sucked into the second chamber 130 by the fan blade 140, and is finally discharged into the room through the indoor air outlet 131.

In alternative embodiments, the second filter 150 may not be provided if fresh air filtration is not desired.

Further, in this embodiment, the purification opening 124 and the dirty air opening 125 are disposed on a side of the first chamber 120 away from the second chamber 130 in the first direction, the fresh air opening 123 is disposed on a side of the first chamber 120 in the second direction, the first direction is perpendicular to the second direction, and the partition 112 is parallel to the second direction.

Further, the fan blade 140 of the present embodiment is a centrifugal fan blade disposed in the second chamber 130, an axial air intake side of the fan blade 140 faces the induced air opening 113, and the indoor air outlet 131 and the outdoor air outlet 132 are both located on a radial upward side of the fan blade 140. The centrifugal fan blade has the characteristics of axial air inlet and radial air outlet, and can well adapt to the condition that the indoor air outlet 131 and the induced draft port 113 are perpendicular to each other in orientation.

In this embodiment, the fresh air device 100 further includes an air valve 170, the air valve 170 is installed outside the casing 110 and is communicated with the outdoor air outlet 132 and the fresh air inlet 123, and a main valve port 171 for communicating with the outside is opened on the air valve 170. Through setting up blast gate 170, can make two openings of new trend device 100 and outdoor intercommunication gather into a bus port 171, reduced trompil quantity on the wall body like this, simplified the cooperation relation of new trend device 100 with the wall body, facilitate for new trend device 100's installation. Fig. 4 is a schematic view of the fresh air device 100 with the air valve 170 removed according to an embodiment of the present disclosure. As shown in fig. 4, the outdoor air outlet 132 and the fresh air port 123 are located on the same side of the whole of the casing 110, and after the air damper 170 is installed, the air damper 170 covers the outdoor air outlet 132 and the fresh air port 123. The opening and closing of the outdoor air outlet 132 and the fresh air inlet 123 are independently controlled, and the main valve port 171 can be kept in a normally open state.

In this embodiment, the first chamber 120 is provided with a first support plate 116 and a second support plate 117 on two inner walls opposite to each other in the first direction, wherein the second support plate 117 is provided on the partition 112, two ends of the second filter 150 are respectively connected to the first support plate 116 and the second support plate 117, and the first support plate 116, the second filter 150 and the second support plate 117 together divide the first chamber 120 into a first area 121 and a second area 122. As shown in fig. 3, the upper region of the second filter member 150 and the first support plate 116 is the first region 121, and the lower left region of the second filter member 150 is the second region 122.

Further, the first support plate 116 is located at a different position in the second direction from the second support plate 117, and the first support plate 116 is higher than the second support plate 117. The second filter 150 has a plate shape and is inclined to the first and second directions. In the first direction, the end of the second filter member 150 connected to the second support plate 117 is closer to the partition 112 than the end of the second filter member 150 connected to the first support plate 116. The second filter 150 is disposed obliquely, so that the filtering area can be increased and the filtering effect can be improved. Furthermore, the second filter 150 and the partition plate 112 form a tapered flow passage downstream of the first region 121, which can reduce the resistance of the wind induced by the dirty wind.

Further, the projection of the second filter 150 on the partition 112 in the first direction covers at least 80% of the induced draft opening 113. Because the air that the fresh air inlet 123 got into can only reach first region 121 through second filter 150, and then reach induced air mouth 113, consequently cover induced air mouth 113 at least 80% through making the projection of second filter 150 on baffle 112, guarantee that second filter 150 is big enough, can improve the intake of new trend to a certain extent, also improve the filter effect simultaneously.

In this embodiment, the inner wall of the second region 122 of the first chamber 120 is further provided with a third supporting plate 118, the third supporting plate 118 and the first supporting plate 116 are arranged on the same side of the first chamber 120, the first filter member 160 is located between the first supporting plate 116 and the third supporting plate 118, and two ends of the first filter member 160 are respectively connected to the first supporting plate 116 and the third supporting plate 118. In this embodiment, the first support plate 116 and the third support plate 118 are slidably engaged with the first filter member 160, and the housing 110 is provided with a first mounting opening for allowing the first filter member 160 to be drawn out of the first cavity 120 or inserted into the first cavity 120. Through with first filter member 160 with first backup pad 116 and third backup pad 118 sliding fit to set up first installing port, can make the loading and unloading of first filter member 160 more convenient.

Further, the first support plate 116 and the second support plate 117 are slidably engaged with the second filter member 150, and the housing 110 is provided with a second mounting opening for allowing the second filter member 150 to be drawn out of the first cavity 120 or to be inserted into the first cavity 120. The second filter member 150 is slidably fitted to the first support plate 116 and the second support plate 117, and the second mounting hole is formed, so that the second filter member 150 can be more conveniently mounted and dismounted.

In this embodiment, the fresh air device 100 further includes a switching component for selectively opening one of the indoor air outlet 131 and the outdoor air outlet 132 and simultaneously blocking the other. Since the indoor air outlet 131 and the outdoor air outlet 132 are not used at the same time, one of the indoor air outlet 131 and the outdoor air outlet 132 is selectively opened by the switching member, the use of a driving mechanism can be reduced, the structure is compact, and the cost is reduced.

In an alternative embodiment, the switching assembly includes a first rotary damper 172, the first rotary damper 172 is rotatable with respect to the inner wall of the second chamber 130, and the first rotary damper 172 is rotatable to selectively open the indoor air outlet 131 while blocking the outdoor air outlet 132, or open the outdoor air outlet 132 while blocking the indoor air outlet 131. In this embodiment, the switching assembly is disposed on the damper 170, and in alternative embodiments, the switching assembly may be disposed on the housing 110. In this embodiment, the switching assembly further includes a motor for driving the first rotary damper 172 to rotate.

In this embodiment, the fresh air device 100 further includes a second rotary damper 173, and the second rotary damper 173 can be rotated to selectively open or close the fresh air opening 123. A motor may be separately provided to drive the second rotary damper 173. In the present embodiment, the second rotary damper 173 is provided on the air valve 170; in alternative embodiments, the second rotary damper 173 may also be rotatably coupled to the housing 110.

In the embodiment of the present application, when the purifying function is turned on, the indoor air passes through the first filter 160 and the second filter 150, and then is returned to the indoor; with the fresh air function on, the outdoor air passes through the second filter 150 and then enters the room. Considering that the objects processed by the fresh air function and the purification function are different, the fresh air function mainly needs to filter outdoor air, the emphasis is on removing particulate matters, the purification function mainly aims at purifying indoor air, and the emphasis on purification can be on organic volatile matters. The first filter member 160 and the second filter member 150 may thus be different types or filter capacities.

In the present embodiment, the housing 110 is provided with a sliding door 126, and the sliding door 126 can slide to selectively open one of the sewage port 125 or the purge port 124. Since the sewage draining function and the purifying function can be selectively opened, the sewage port 125 and the purifying port 124 can be selectively opened, so that the purifying port 124 and the sewage port 125 can be opened or closed by the same sliding door 126, and the sliding door 126 blocks the purifying port 124 when the sewage port 125 is opened, and blocks the sewage port 125 when the purifying port 124 is opened. And the sliding door 126 can simultaneously block the purge port 124 and the dirty air port 125. A motor may be provided to drive the sliding door 126 in this embodiment.

Fig. 5 is an exploded view of a fresh air device 100 according to an embodiment of the present application. As shown in fig. 5, in the embodiment of the present application, the housing 110 of the fresh air device 100 may be assembled by a plurality of components, including the volute 119, the middle shell 111, the end plate 115, and the support frame 114. The middle shell 111, the end plate 115 and the support frame 114 together enclose a first cavity 120, the partition plate 112 and the fresh air port 123 are located on the middle shell 111, and the dirty air port 125 and the purification port 124 are formed on the end plate 115. In this embodiment, a part of the first support plate 116 and the third support plate 118 are located on the support frame 114, and the support frame 114 abuts on the end plate 115; in alternative embodiments, the first support plate 116 and the third support plate 118 may be disposed directly inside the end plate 115.

In this embodiment, the second chamber 130 is formed by the volute 119 because the fan 140 is a centrifugal fan. The fan blade 140 is arranged in the second chamber 130, and the shape of the volute 119 is matched with that of the fan blade 140. In alternative embodiments, the blades 140 may also be axial flow blades, in which case, the blades 140 may also be disposed in the induced draft opening 113, and the volute 119 forming the second chamber 130 may also be replaced with other shapes.

In this embodiment, the second filter member 150 is disposed in the second filter frame 151, and the first filter member 160 is disposed in the first filter frame 161, so that the edge strength of the filter member can be improved, and the filter member can be slidably fitted to the support plate, and can be easily attached to and detached from the support plate.

The operation of the fresh air device 100 in three different modes is described below.

FIG. 6 is a second cross-sectional view of the fresh air device 100 in a fresh air mode according to an embodiment of the present disclosure; fig. 7 is a third cross-sectional view of the fresh air device 100 in a fresh air mode according to an embodiment of the present application. As shown in fig. 3, 6, and 7, in the fresh air mode, the sliding door 126 closes the purge port 124 and the dirty air port 125, the second rotary damper 173 opens the fresh air port 123, and the first rotary damper 172 opens the indoor air outlet 131 and closes the outdoor air outlet 132. When the fan 140 rotates, fresh outdoor air enters from the main valve port 171 of the air valve 170, passes through the fresh air port 123, enters the first chamber 120, passes through the second filter 150, enters the second chamber 130, and is discharged into the room through the indoor air outlet 131. The hollow arrows in the figure indicate the flow direction of the air flow. In this process, since the outdoor air outlet 132 is blocked, the fresh air does not directly enter the second chamber 130 from the outdoor air outlet 132 after entering the air valve 170.

FIG. 8 is a first cross-sectional view of the fresh air device 100 in a blowdown mode according to an embodiment of the present application; FIG. 9 is a second cross-sectional view of the fresh air device 100 in a blowdown mode according to an embodiment of the present application; fig. 10 is a third cross-sectional view of the fresh air device 100 in a blowdown mode according to an embodiment of the present application. As shown in fig. 8 to 10, in the sewage discharging mode, the sliding door 126 opens the sewage port 125 and closes the purge port 124, the fresh air port 123 is closed by the second rotary damper 173, and the indoor air discharge port 131 is closed by the second rotary damper 173. When the fan blades 140 rotate, indoor air enters the first area 121 of the first chamber 120 from the dirty air inlet 125, then directly enters the second chamber 130 from the induced air inlet 113, and then enters the exhaust section of the volute 119 under the action of the fan blades 140. At this time, since the first rotary damper 172 blocks the indoor discharge port 131, the gas enters the damper 170 from the outdoor discharge port 132 and is then discharged to the outside from the main valve port 171.

Fig. 11 is a first cross-sectional view of the fresh air device 100 in a purification mode according to an embodiment of the present application; fig. 12 is a second cross-sectional view of the fresh air device 100 in a cleaning mode according to an embodiment of the present disclosure. As shown in fig. 11 and 12, in the purge mode, the sliding door 126 opens the purge port 124 and closes the dirty air port 125, the fresh air port 123 is closed by the second rotary damper 173, the outdoor air outlet 132 is closed by the first rotary damper 172, and the indoor air outlet 131 is opened. After the fan 140 rotates, the indoor air enters the first chamber 120 through the purifying opening 124, passes through the first filter 160 and the second filter 150, enters the second chamber 130 through the induced draft opening 113, and is discharged to the indoor through the indoor exhaust opening 131. The indoor air is returned to the room after passing through the fresh air device 100, and is filtered twice in the process, so that the indoor air can be purified.

Fig. 13 is a schematic diagram of an air conditioner 010 according to an embodiment of the present application. As shown in fig. 13, the air conditioner 010 provided in the embodiment of the present application includes an air conditioner main body 200 and the fresh air device 100 provided in the above embodiment. In this embodiment, the air conditioner 010 is a wall-mounted air conditioner, and in other optional embodiments, the air conditioner may also be a cabinet air conditioner or a multi-split air conditioner.

In the present embodiment, the air conditioner main body 200 is mainly used for temperature adjustment, and includes necessary components such as a heat exchanger and a fan. The air conditioner main body 200 includes an intake vent 210 and an outlet vent 220, the intake vent 210 being located at an upper side of the air conditioner main body 200, and the outlet vent 220 being located at a lower side of the air conditioner main body 200. The fresh air device 100 is disposed at one side of the air conditioner main body 200 in the horizontal direction, and the first chamber 120, the second chamber 130, and the air conditioner main body 200 are sequentially arranged. Under the structure, the dirty air inlet 125 and the clean air inlet 124 are located on the side of the fresh air device 100 far away from the air conditioner main body 200, so that the air is not easily influenced by the induced air from the air inlet 210 on the upper side of the air conditioner main body 200 during air intake, and the air intake of the dirty air inlet 125 and the clean air inlet 124 is ensured.

In this embodiment, under the condition that the fresh air device 100 is normally installed in the air conditioner main body 200, the indoor air outlet 131 and the fresh air inlet 123 are located at a position below the fresh air device 100, the indoor air outlet 131 and the air outlet 220 are arranged side by side in the horizontal direction, and the fresh air inlet 123 is below and is convenient for connecting an external fresh air pipe.

In this embodiment, the integrated panel may be disposed outside the fresh air device 100 and the air conditioner main body 200, so as to protect the fresh air device 100 and the air conditioner main body 200 and improve the appearance. Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A fresh air device is characterized by comprising a shell (110), and a first filter element (160) and a fan blade (140) which are arranged in the shell (110), wherein a first cavity (120) and a second cavity (130) are formed in the shell (110), the first cavity (120) is provided with a purification port (124) and a dirty air port (125), the purification port (124) is used for being communicated with the indoor, the dirty air port (125) is used for being communicated with the indoor, the first cavity (120) is communicated with the second cavity (130) through an air induction port (113), and the fan blade (140) is used for leading the air in the first cavity (120) to the second cavity (130) through the air induction port (113); the first filter element (160) is disposed in the first chamber (120) opposite to the purification port (124) for filtering air entering the first chamber (120) from the purification port (124), and both the sewage port (125) and the purification port (124) can be selectively opened or closed; the second chamber (130) has an indoor air outlet (131) and an outdoor air outlet (132), the indoor air outlet (131) is used for communicating indoors, the outdoor air outlet (132) is used for communicating outdoors, and both the indoor air outlet (131) and the outdoor air outlet (132) can be selectively opened or closed.

2. The fresh air device as claimed in claim 1, wherein the first chamber (120) and the second chamber (130) are arranged in a first direction and are separated by a partition (112), the air inducing opening (113) is arranged on the partition (112), and the sewage opening (125) and the purification opening (124) are both arranged on a side of the first chamber (120) far away from the second chamber (130) in the first direction.

3. The fresh air device as claimed in claim 1, wherein the fan blade (140) is a centrifugal fan blade disposed in the second chamber (130), an axial air inlet side of the fan blade (140) faces the air inlet (113), and the indoor air outlet (131) and the outdoor air outlet (132) are both located on a radial side of the fan blade (140).

4. The fresh air device according to claim 1, wherein the first chamber (120) and the second chamber (130) are arranged in a first direction and are separated by a partition (112), the air inlet (113) is disposed in the partition (112), a second filter (150) is further disposed in the first chamber (120), the first chamber (120) comprises a first region (121) and a second region (122), the first region (121) and the second region (122) are separated by the second filter (150), the air inlet (113) and the sewage inlet (125) are disposed on a side wall of the first region (121), the purification port (124) is disposed on a side wall of the second region (122), and the first filter (160) is disposed in the second region (122).

5. The fresh air device according to claim 4, wherein the first chamber (120) is provided with a first support plate (116) and a second support plate (117) on two inner walls opposite to each other in the first direction, wherein the second support plate (117) is provided on the partition plate (112), two ends of the second filter member (150) are respectively connected to the first support plate (116) and the second support plate (117), and the first support plate (116), the second filter member (150) and the second support plate (117) jointly divide the first chamber (120) into the first region (121) and the second region (122).

6. The fresh air device according to claim 5, wherein the first support plate (116) and the second support plate (117) are located differently in a second direction, the second filter member (150) is plate-shaped and inclined to the first direction and the second direction, in the first direction, an end of the second filter member (150) connected to the second support plate (117) is closer to the partition plate (112) than an end of the second filter member (150) connected to the first support plate (116), and wherein the second direction is perpendicular to the first direction.

7. The fresh air device according to claim 5, wherein a third support plate (118) is further disposed in the second region (122), the third support plate (118) and the first support plate (116) are disposed on the inner wall of the same side of the first cavity (120), the first support plate (116) and the third support plate (118) are respectively located on two opposite sides of the purification port (124), and two ends of the first filter member (160) are respectively connected to the first support plate (116) and the third support plate (118) and cover the purification port (124).

8. The fresh air device according to claim 7, wherein the first support plate (116) and the third support plate (118) are each slidably fitted with the first filter member (160), and the housing (110) is provided with a first mounting opening for the first filter member (160) to be extracted from or inserted into the first cavity (120).

9. The fresh air device according to claim 5, wherein the first support plate (116) and the second support plate (117) are each slidably fitted with the second filter member (150), and the housing (110) is provided with a second mounting opening for the second filter member (150) to be extracted from or inserted into the first cavity (120).

10. The fresh air device as claimed in any one of claims 1 to 9, wherein the fresh air device (100) further comprises a switching means for selectively opening one of the indoor air outlet (131) and the outdoor air outlet (132) while blocking the other.

11. The fresh air device as claimed in claim 10, wherein the switching assembly comprises a first rotary damper (172), the first rotary damper (172) is rotatably connected to the inner wall of the second chamber (130), and the first rotary damper (172) can selectively open the indoor air outlet (131) and close the outdoor air outlet (132) or open the outdoor air outlet (132) and close the indoor air outlet (131) by rotating.

12. The fresh air device as claimed in any one of claims 1 to 9, wherein a sliding door (126) is provided on the housing (110), the sliding door (126) being slidable to selectively open one of the dirty air opening (125) and the purge opening (124).

13. An air conditioner, characterized by comprising an air conditioner main body (200) and the fresh air device (100) of any one of claims 1-12, wherein the first chamber (120), the second chamber (130) and the air conditioner main body (200) are arranged in sequence in the length direction of the air conditioner.