CN217844176U

CN217844176U - Fresh air device and air conditioner

Info

Publication number: CN217844176U
Application number: CN202222028380.2U
Authority: CN
Inventors: 田振; 俞旭; 朱勇强; 商竹贤; 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, the second chamber has set up outdoor air exit, consequently, can realize blowdown function and new trend function. In addition, the fresh air filter element divides a first area and a second area, the sewage opening and the air inducing opening are located in the first area, and the fresh air opening is located in the second area, so that when the fresh air function is used, outdoor air can pass through the fresh air filter element, and the cleanliness of the air entering the room is ensured; when the pollution discharge function is used, indoor dirty air cannot pass through the fresh air filter piece, pollutants in indoor air can be discharged to the outdoor as far as possible, and too much burden cannot be caused on the fresh air filter piece. Therefore, use the new trend device that this application embodiment provided, not only can realize the new trend function, can also realize the 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 conditioning technology field particularly, relates to a new trend device and air conditioner.

Background

At present, an internal circulation mode is often adopted for a household air conditioner, namely indoor air enters the air conditioner to exchange heat with a heat exchanger and then returns to the indoor environment again, and the indoor air is not replaced by 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 on 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 above problems, in a first aspect, the utility model provides a fresh air device, which comprises a shell, a fresh air filter element and a fan blade, wherein the fresh air 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 dirty air port and a fresh air port, the dirty air port is used for being communicated with the interior of the shell, the fresh air port is used for being communicated with the exterior of the shell, 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 cavity comprises a first area and a second area, the first area and the second area are separated by a fresh air filter, the air inducing port and the dirty air port are positioned on the side wall of the first area, the fresh air port is positioned on the side wall of the second area, and the fresh air port and the dirty air port can be selectively opened or closed; the second chamber is provided with an indoor air outlet and an outdoor air outlet, the indoor air outlet is used for being communicated indoors, the outdoor air outlet is used for being communicated outdoors, and the indoor air outlet and the outdoor air outlet can be selectively opened or closed.

In this application embodiment, close at new wind gap, 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, the first region in first chamber, induced air mouth, second chamber, outdoor air exit in proper order to reach outdoors, play the function of initiative blowdown. And open at fresh air inlet, indoor air exit, and under the condition that dirty wind inlet, outdoor air exit were closed, outdoor air can pass through fresh air inlet, the second region of first chamber, fresh air filter spare, the first region of first chamber, induced air mouth, second chamber, indoor air exit in proper order to reach indoorly, realize the new trend function. It is thus clear that, among the new trend device that this application embodiment provided, because the first chamber has set up dirty wind gap, the second chamber has set up outdoor air exit, consequently, can realize blowdown function and new trend function. In addition, the fresh air filter element divides a first area and a second area, the sewage opening and the air inducing opening are located in the first area, and the fresh air opening is located in the second area, so that when the fresh air function is used, outdoor air can pass through the fresh air filter element, and the cleanliness of the air entering the room is ensured; when the pollution discharge function is used, indoor dirty air cannot pass through the fresh air filter piece, pollutants in indoor air can be discharged to the outdoor as far as possible, and too much burden cannot be caused on the fresh air filter piece. Therefore, use the new trend device that this application embodiment provided, not only can realize the new trend function, can also realize the blowdown function, can guarantee the quality of room air better.

In an optional embodiment, the first chamber and the second chamber are arranged in the first direction and are separated by a partition plate, the air inducing opening is arranged on the partition plate, the dirty air opening is arranged on one side of the first chamber far away from the second chamber in the first direction, the fresh air opening is arranged on one side of the first chamber in the second direction, and the first direction is perpendicular to the second 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 waste function is activated. And dirty wind gap sets up in the first chamber and keeps away from the one side of second chamber in the first direction, and dirty wind gap can be located the left side or the right side of air conditioner promptly for the heat transfer air intake at air conditioner top is kept away from as far as possible in dirty wind gap, avoids the air inlet of air conditioner main part to influence dirty wind gap air inlet and leads to the blowdown 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. When the fresh air device is installed in the air conditioner, it is often arranged transversely to the air conditioner main body. 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 air outlet 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 first cavity is provided with a first support plate and a second support plate on two inner walls opposite to each other in the first direction respectively, the second support plate is arranged in the partition plate, two ends of the fresh air filtering member are connected to the first support plate and the second support plate respectively, and the first support plate, the fresh air filtering member and the second support plate divide the first cavity into a first area and a second area together.

In an alternative embodiment, the fresh air inlet is arranged on one side of the first cavity in the second direction, the first direction is perpendicular to the second direction, the positions of the first support plate and the second support plate in the second direction are different, and the fresh air filter is plate-shaped and inclined to the first direction and the second direction; in the first direction, the one end that the second backup pad is connected to the new trend filtration piece is close to the baffle than the one end that the first backup pad is connected to the new trend filtration piece. The new trend filters the slope setting, forms the runner of convergent between new trend filters and the baffle, sets up like this and can increase filtration area, improves the filter effect, and the runner of convergent can reduce dirty wind induced air resistance simultaneously.

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

In an optional embodiment, the first support plate and the second support plate are in sliding fit with the fresh air filter member, and the housing is provided with a first mounting port for the fresh air filter member to be drawn out of or put into the first cavity. Through filtering new trend piece and first backup pad and second backup pad sliding fit to set up first installing port, can make the loading and unloading of filtering new trend 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 simultaneously, one of the indoor air outlet and the outdoor air outlet is selectively opened through the switching assembly, 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, the first rotary damper being rotatable relative to the inner wall of the second chamber, the first rotary damper being rotatable to selectively open the indoor air outlet while blocking the outdoor air outlet, or to open the outdoor air outlet while blocking 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, the fresh air device further comprises a second rotary damper that is rotatable to selectively open or close the fresh air opening.

In an alternative embodiment, a sliding door is provided on the housing, and the sliding door is slidable to selectively open or close the sewage 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 according to 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 disclosure;

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 application;

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 in 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 the 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 fresh air filter; 151-fresh air filtering frame; 160-a purification filter; 161-a clean-up filter frame; 170-air valve; 171-bus port; 172-a first rotary damper; 173-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 for a long time indoors and outdoors, 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 introduce fresh air into an indoor fresh air function and discharge indoor air to an outdoor sewage discharge function through one fan blade.

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 the fresh air device 100 in a fresh air mode according to an embodiment of the present application. As shown in fig. 1 to fig. 3, the fresh air device 100 provided by the embodiment of the present application includes a casing 110, and a fan blade 140 and a fresh air filter 150 that are disposed in the casing 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 is provided with a dirty air port 125 and a fresh air port 123, the dirty air port 125 is used for being communicated with the indoor space, the fresh air port 123 is used for being communicated with the outdoor space, the first chamber 120 is communicated with the second chamber 130 through an air induction port 113, the first chamber 120 comprises a first area 121 and a second area 122, the first area 121 and the second area 122 are separated by a fresh air filter 150, the air induction port 113 and the dirty air port 125 are positioned on the side wall of the first area 121, the fresh air port 123 is positioned on the side wall of the second area 122, and both the fresh air port 123 and the dirty air port 125 can be selectively opened or closed; 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 achieve the function of active pollution discharge by providing the sewage opening 125 on the housing 110. Moreover, since the fresh air 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 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 is closed) to discharge dirt, 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 fresh air filter 150, and is finally discharged to the outside from the outdoor air outlet 132; when the fresh air inlet 123 is opened (the dirty air inlet 125 is closed) to introduce fresh air, the fresh air enters the first cavity 120, passes through the fresh air filter 150 from the second region 122, enters the first region 121, is sucked into the second cavity 130 by the fan blade 140, is finally discharged into the room from the indoor air outlet 131, and passes through the fresh air outside the filter chamber, so that the indoor air quality is ensured.

Further, in the present embodiment, the dirty air port 125 is disposed on a side of the first chamber 120 away from the second chamber 130 in the first direction, the fresh air port 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 inlet side of the fan blade 140 faces the air inducing opening 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. 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, a first support plate 116 and a second support plate 117 are respectively disposed on two inner walls of the first cavity 120 opposite to each other in the first direction, wherein the second support plate 117 is disposed on the partition 112, two ends of the fresh air filtering member 150 are respectively connected to the first support plate 116 and the second support plate 117, and the first support plate 116, the fresh air filtering member 150 and the second support plate 117 together divide the first cavity 120 into a first area 121 and a second area 122. As shown in fig. 3, the upper region of the fresh air filter 150 and the first support plate 116 is the first region 121, and the lower left region of the fresh air filter 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 fresh air filter 150 has a plate shape and is inclined to the first and second directions. In the first direction, the end of the fresh air filter member 150 connected to the second support plate 117 is closer to the spacer 112 than the end of the fresh air filter member 150 connected to the first support plate 116. The new trend filters 150 slope setting, and the setting can increase filter area like this, improves the filter effect, and new trend filters 150 forms the convergent runner with baffle 112 in the low reaches department of first region 121, can reduce dirty wind induced air resistance.

Further, the projection of the fresh air filter 150 on the partition 112 along the first direction covers at least 80% of the induced draft opening 113. Because the air entering from the fresh air inlet 123 can only reach the first area 121 through the fresh air filter 150 and then reach the induced draft port 113, the projection of the fresh air filter 150 on the partition plate 112 covers at least 80% of the induced draft port 113, so that the fresh air filter 150 is ensured to be large enough, the air inlet amount of the fresh air can be increased to a certain extent, and the filtering effect is also improved.

Further, the first support plate 116 and the second support plate 117 are both in sliding fit with the fresh air filter 150, and the housing 110 is provided with a first mounting opening, which is used for the fresh air filter 150 to be drawn out from the first cavity 120 or to be put into the first cavity 120. Through filtering new trend piece 150 and first backup pad 116 and second backup pad 117 sliding fit to set up first installing port, can make the loading and unloading of filtering new trend piece 150 more convenient.

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 plugging 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, the fresh air device 100 can also realize a purification function in addition to the fresh air function and the pollution discharge function. The purification function is to introduce indoor air into the fresh air device 100, and then to discharge the air to the room after filtration and purification. In this embodiment, the housing 110 is further provided with a purge port 124, and the purge port 124 is used for communicating with the room. The purge port 124 is located on a sidewall of the second region 122 of the first chamber 120, and a purge filter 160 is further disposed in the housing 110, the purge filter 160 being disposed in the second region 122 of the first chamber 120 for filtering the indoor air entering the first chamber 120 from the purge port 124. In this embodiment, when the purifying function is turned on, the indoor air passes through the purifying filter 160 and the fresh air filter 150, and then is returned to 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 purification filter 160 and the fresh air filter 150 may therefore be configured to be different types or filters of different filtering capacities.

In this embodiment, the inner wall 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 disposed on the same side of the first chamber 120, the purifying filter 160 is located between the first supporting plate 116 and the third supporting plate 118, and two ends of the purifying filter 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 purifying filter 160, and the housing 110 is provided with a second mounting opening for allowing the purifying filter 160 to be drawn out of the first chamber 120 or inserted into the first chamber 120. The cleaning filter member 160 is slidably engaged with the first support plate 116 and the third support plate 118, and the second mounting opening is formed, so that the cleaning filter member 160 can be more conveniently mounted and dismounted.

In the present embodiment, the housing 110 is provided with a sliding door 126, and the sliding door 126 can slide to selectively open or close the sewage opening 125. Because the sewage draining function and the purifying function can be opened alternatively, the sewage opening 125 and the purifying opening 124 can be opened alternatively, therefore, the purifying opening 124 can be opened or closed by the sliding door 126, the sliding door 126 blocks the purifying opening 124 when opening the sewage opening 125, blocks the sewage opening 125 when opening the purifying opening 124, and blocks the purifying opening 124 and the sewage opening 125 simultaneously by the sliding door 126. 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 also be disposed directly inside the endplate 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 fan blade 140 may also be an axial flow fan blade, in which case, the fan blade 140 may also be disposed in the induced air opening 113, and the volute 119 forming the second chamber 130 may also be replaced by other shapes.

In this embodiment, the fresh air filter 150 is disposed in the fresh air filter frame 151, and the purification filter 160 is disposed in the purification filter frame 161, so that the edge strength of the filter can be improved, and the filter can be conveniently assembled and disassembled with the support plate in sliding fit.

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 application; 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 blade 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 fresh air filter 150, enters the second chamber 130, and is finally discharged into the room from the indoor air outlet 131. The hollow arrows in the figure indicate the flow direction of the air flow. In the 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 a 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 blade 140 rotates, 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 blade 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 the purification mode according to an embodiment of the present application. 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 purifying filter 160 and the fresh air filter 150, enters the second chamber 130 through the air inlet 113, and is discharged into the room through the indoor air outlet 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 according to the embodiment of the present application includes an air conditioner main body 200 and the fresh air device 100 according to the 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 air inlet 210 and an air outlet 220, the air inlet 210 is located at an upper side of the air conditioner main body 200, and the air outlet 220 is 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. In other words, the first chamber 120, the second chamber 130, and the air conditioner main body 200 are sequentially arranged in the longitudinal direction of the air conditioner 010. 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 by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.

Claims

1. A fresh air device is characterized by comprising a shell (110), and a fresh air filter (150) 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 sewage opening (125) and a fresh air opening (123), the sewage opening (125) is used for being communicated with the indoor space, the fresh air opening (123) is used for being communicated with the outdoor space, the first cavity (120) is communicated with the second cavity (130) through an air inducing opening (113), and the fan blade (140) is used for inducing the air in the first cavity (120) to the second cavity (130) through the air inducing opening (113); the first chamber (120) comprises a first zone (121) and a second zone (122), the first zone (121) and the second zone (122) are separated by the fresh air filter (150), the air induction opening (113) and the dirty air opening (125) are located on a side wall of the first zone (121), the fresh air opening (123) is located on a side wall of the second zone (122), and both the fresh air opening (123) and the dirty air opening (125) 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) is 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 on the partition (112), 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, the second support plate (117) is disposed on the partition (112), two ends of the fresh air 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 fresh air 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).

5. The fresh air device according to claim 4, wherein the fresh air opening (123) is disposed on a side of the first cavity (120) in a second direction, the first direction being perpendicular to the second direction; the first support plate (116) and the second support plate (117) are different in position in the second direction, and the fresh air filter (150) is plate-shaped and inclined to the first direction and the second direction; in the first direction, the end of the second support plate connected with the fresh air filter is closer to the partition plate than the end of the first support plate connected with the fresh air filter.

6. The fresh air device according to claim 4, wherein a projection of the fresh air filter (150) onto the partition (112) in the first direction covers at least 80% of the air intake (113).

7. The fresh air device according to claim 4, wherein the first support plate (116) and the second support plate (117) are each slidably fitted to the fresh air filter member (150), and the housing (110) is provided with a first mounting opening for allowing the fresh air filter member (150) to be drawn out of the first cavity (120) or to be inserted into the first cavity (120).

8. The fresh air device as claimed in any one of claims 1 to 7, 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.

9. The fresh air device as claimed in claim 8, wherein the switching assembly comprises a first rotary damper (172), the first rotary damper (172) being rotatable relative to an inner wall of the second chamber (130), the first rotary damper (172) being 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).

10. The fresh air device as claimed in any one of claims 1 to 7, wherein the fresh air device (100) further comprises an air valve (170), the air valve (170) is mounted 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 outdoors is formed in the air valve (170).

11. The fresh air device as claimed in any of claims 1 to 7, wherein the fresh air device (100) further comprises a second rotary damper (173), the second rotary damper (173) being rotatable to selectively open or close the fresh air opening (123).

12. The fresh air device as claimed in any one of claims 1 to 7, wherein a sliding door (126) is provided on the housing (110), the sliding door (126) being slidable to selectively open or close the dirty air opening (125).

13. An air conditioner, characterized in that, comprising an air conditioner main body (200) and the fresh air device (100) of any one of claims 1-12, 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.