CN217844174U

CN217844174U - Fresh air device and air conditioner

Info

Publication number: CN217844174U
Application number: CN202222028169.0U
Authority: CN
Inventors: 朱勇强; 商竹贤; 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 first chamber has set up and has purified the mouth, consequently, can realize purification performance and new trend function. In addition, the fresh air filter is divided into a first area and a second area, the air induction port is positioned in the first area, and the fresh air port and the purification port are positioned in the second area, so that when the fresh air function is used, outdoor air can pass through the fresh air filter, and the cleanliness of the air entering the room is ensured; when the air purifier is used, indoor air can return to the indoor space through the purifying and filtering piece and the fresh air filtering piece. It can be seen that, when using the new trend function, the new trend can be through a filtration piece, and when using purification performance, indoor dirty wind can be successively through two filtration pieces, therefore this application embodiment is targeted more to indoor air's purification, can guarantee indoor air's quality 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.

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 present invention provides a fresh air device, including a housing, a fresh air filtering member, a purifying filtering member and a fan blade, which are arranged in the housing, wherein a first cavity and a second cavity are formed in the housing, the first cavity has a purifying opening and a fresh air opening, the purifying opening is used for communicating indoors, the fresh air opening is used for communicating outdoors, the first cavity is communicated with the second cavity through an air inlet, and the fan blade is used for guiding air in the first cavity to the second cavity through the air inlet; 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 induction port is positioned on the side wall of the first area, the fresh air port and the purification port are positioned on the side wall of the second area, the purification filter is arranged in the second area and is used for filtering air flowing from the purification port to the air induction port, the air flowing from the fresh air port to the air induction port does not pass through the purification filter, and the fresh air port and the purification port can be selectively opened or closed; the second cavity is provided with an indoor air outlet which is used for being communicated indoors.

In this application embodiment, close at the fresh air inlet, purify the condition that mouthful was opened, indoor air can be under the drive of fan blade, and the second region, the fresh air that filter piece, first chamber are filtered in proper order to the second region, the fresh air that purify filter piece, first chamber, induced air mouth, second chamber, indoor air exit of purifying room to get back to indoorly, play the function of purifying room air. And open at the fresh air inlet, purify under the condition that the mouth closed, outdoor air can pass through the fresh air inlet in proper order, the second area of first chamber, fresh air filter spare, the first area of first chamber, induced air mouth, second chamber, indoor air exit to reach indoor, realize the new trend function. The purification port and the fresh air port can be opened simultaneously, so that the fresh air function and the purification function are realized simultaneously. It is thus clear that, among the new trend device that this application embodiment provided, because first chamber has set up purification mouth and fresh air inlet, consequently, can realize purification performance and new trend function. In addition, the fresh air filter is divided into a first area and a second area, the air induction port is positioned in the first area, and the fresh air port and the purification port are positioned in the second area, so that when the fresh air function is used, outdoor air can pass through the fresh air filter, and the cleanliness of the air entering the room is ensured; when the air purifier is used, indoor air can return to the indoor space through the purifying and filtering piece and the fresh air filtering piece. It can be seen that, when using the new trend function, the new trend can be through a filtration piece, and when using purification performance, indoor dirty wind can be successively through two filtration pieces, therefore this application embodiment is more targeted to the purification of room air, because room air compares in outdoor air, probably has more complicated constitution (for example organic volatile component), needs stricter filtration purification. Therefore, use the new trend device that this application embodiment provided, not only can realize that the new trend function can also realize purification performance, can guarantee the quality of room 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 plate, the air inducing port is arranged on the partition plate, the purifying port is arranged on one side of the first cavity, which is far away from the second cavity, in the first direction, the fresh air port is arranged on one side of the first cavity, which is in the second direction, and the first direction is perpendicular to the second direction. In the case of an air conditioner, particularly a wall-mounted air conditioner, the first direction may be a horizontal direction, in which case the air in the room is introduced into the fresh air device in a lateral direction when the cleaning function is turned on. And the purification opening is arranged on one side of the first cavity, which is far away from the second cavity in the first direction, so that the purification opening can be far away from the heat exchange air inlet on the air conditioner main body as far as possible, and the phenomenon that the purification capacity is reduced because the air inlet of the air conditioner main body influences the air inlet of the purification opening is avoided.

In an alternative embodiment, the projection of the cleaning opening in the partition at least partially covers the air intake opening. So set up, can shorten indoor dirty wind and flow to the route in induced air mouth after getting into the purification mouth, reduce induced air resistance, promote the purification amount of wind.

In an alternative 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 draft opening, and the indoor air outlet is located on one side of the fan blade in the radial direction. When the fresh air device is installed in the air conditioner, the fresh air device 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 filter and the purification filter are inclined to each other, and the space between the fresh air filter and the purification filter gradually shrinks in the direction away from the fresh air opening. Fresh air filtration piece and purification filtration piece slope set up, can form the convergent wind channel between. After the new trend got into the air duct that subtracts contracts, each position wind pressure of fresh air filter's air inlet face can be balanced, improves fresh air filter's effective air inlet area, promotes purifying effect, and simultaneously, fresh air filter's actual air inlet area is big, and the induced air resistance can reduce, is favorable to improving the new trend air inlet rate. And, when reducing two filter screen intervals, but the large tracts of land of adaptation purifies and filters piece, fresh air filter, improves purifying effect.

In an optional embodiment, the fresh air filter is obliquely arranged relative to the partition board, and the projection of the fresh air filter on the partition board along the first direction at least covers 80% of the air inlet. 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 with fresh air filter piece and first backup pad and second backup pad sliding fit to set up first installing port, can make fresh air filter piece's loading and unloading more convenient.

In an alternative embodiment, a third support plate is further disposed in the first 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 purification filter member are respectively connected to the first support plate and the third support plate.

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

In an alternative embodiment, the projection of the fresh air filter onto the separating wall in the first direction completely covers the projection of the clean air filter onto the separating wall in the first direction. In this embodiment, the new filter element is larger and its projection on the partition can completely cover the projection of the purification filter element on the partition. Make the new trend like this can more directly enter into the induced air mouth from the fresh air filter piece after getting into first chamber through the fresh air mouth, and not produce too much interference with purifying and filtering the piece to reduce the windage, improve the fresh air volume.

In an alternative embodiment, the fresh air device includes a 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, the sliding door being slidable to selectively open or close the purge port.

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 in an embodiment of the present application from a first perspective;

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 application;

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 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 region; 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 purification filtration 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 usually closes a door and a window in the using process to reduce the dissipation of indoor cold air or warm air to the outside, and the existing household air conditioner usually adopts internal circulation, so that the indoor air and the outdoor air cannot be exchanged by the air conditioner. 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 a single function, lacks of purifying indoor air, and only introduces fresh air to replace indoor air so as to improve indoor environment and is difficult to further improve indoor air quality.

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 realize the purification function of indoor air purification through internal circulation.

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 in a second viewing angle according to an embodiment of the present application; 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 according to the embodiment of the present disclosure includes a housing 110, and a fan blade 140, a fresh air filter 150, and a purification filter 160 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 purification opening 124 and a fresh air opening 123, the purification opening 124 is used for communicating with the indoor, the fresh air opening 123 is used for communicating with the outdoor, the first chamber 120 is communicated with the second chamber 130 through an air induction opening 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 separated by a fresh air filter 150, the air induction opening 113 is located on the side wall of the first area 121, the fresh air opening 123 and the purification opening 124 are located on the side wall of the second area 122, and a purification filter 160 is disposed in the second area 122 for filtering the air flowing from the purification opening 124 to the air induction opening 113, and the air flowing from the fresh air opening 123 to the air induction opening 113 does not pass through the purification filter 160. The fresh air port 123 and the purge port 124 may be selectively opened or closed.

The second chamber 130 has an indoor air outlet 131, and the indoor air outlet 131 is used for communicating with the indoor. In the present embodiment, the indoor air outlet 131 may be selectively opened or closed.

It can be seen that, in the embodiment of the present application, when the fresh air opening 123 is closed and the cleaning opening 124 is opened, the indoor air can sequentially pass through the cleaning opening 124, the cleaning filter 160, the second region 122 of the first chamber 120, the fresh air filter 150, the first region 121 of the first chamber 120, the induced air opening 113, the second chamber 130, and the indoor air outlet 131 under the driving of the fan blade 140, so as to return to the indoor space, thereby playing a role of cleaning the indoor air. And under the condition that the fresh air opening 123 is opened and the purification opening 124 is closed, outdoor air can sequentially pass through the fresh air opening 123, the second area 122 of the first cavity 120, the fresh air filter 150, the first area 121 of the first cavity 120, the air induction opening 113, the second cavity 130 and the indoor air outlet 131, so as to reach the indoor space, and the fresh air function is realized. Moreover, because the fresh air filter 150 separates the first area 121 and the second area 122, the air induction port 113 is located in the first area 121, and the fresh air port 123 and the purification port 124 are located in the second area 122, when the fresh air function is used, outdoor air can pass through the fresh air filter 150, and the cleanliness of the air entering the room is ensured; when the air purifier is used, the indoor air will pass through the purifying filter 160 and the fresh air filter 150 and return to the room. It can be seen that, when using the new trend function, the new trend can be through a filtration piece, and when using purification performance, indoor dirty wind can be successively through two filtration pieces, and consequently this application embodiment is more pointed to indoor air's purification, because indoor air compares in outdoor air, probably has more complicated constitution (for example organic volatile component), needs stricter filtration purification. Therefore, use new trend device 100 that this application embodiment provided, not only can realize the new trend function, can also realize purification performance, when using purification performance, can guarantee the quality of room air better through the air in the mode purification room of inner loop. In addition, the purification opening 124 and the fresh air opening 123 can be opened at the same time, so that the fresh air function and the purification function are realized at the same time.

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 purifying filter 160 and the fresh air filter 150 may therefore take the form of different types or different filtering capacities. For example, the purifying filter 160 may be filled with a material for removing formaldehyde or odor, and the fresh air filter 150 may be a filter having a high particle capture efficiency.

Further, in the present embodiment, the purification opening 124 is 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. The projection of the purge port 124 on the partition 112 at least partially covers the induced draft port 113. So set up, can shorten indoor dirty wind and flow to the route of induced air mouth 113 after getting into purification mouth 124, reduce induced air resistance, promote the purification amount of wind.

Further, the fan blade 140 of this 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 is 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 the present embodiment, the fresh air filter 150 and the purification filter 160 are inclined to each other, and the space between the fresh air filter 150 and the purification filter 160 gradually shrinks in a direction away from the fresh air port 123. The fresh air filter 150 and the purification filter 160 are obliquely arranged, and a gradually-reduced air duct can be formed between the fresh air filter and the purification filter. After the new trend got into the air duct that reduces, the each position wind pressure of the air inlet face of new trend filter 150 can be balanced, improves the effective air inlet area of new trend filter 150, promotes purifying effect, and simultaneously, the actual air inlet area of new trend filter 150 is big, and the induced air resistance can reduce, is favorable to improving the new trend intake. Moreover, the distance between the two filter screens is reduced, and the filter element 160 and the fresh air filter element 150 which are large in area can be adapted to improve the purification effect.

Further, a first supporting plate 116 and a second supporting 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 supporting plate 117 is disposed on the partition plate 112, two ends of the fresh air filtering member 150 are respectively connected to the first supporting plate 116 and the second supporting plate 117, and the first supporting plate 116, the fresh air filtering member 150 and the second supporting plate 117 jointly 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 and the second support plate 117 are different in position in the second direction, the fresh air filter 150 is plate-shaped and inclined to the first direction and the second direction, and the purification filter 160 is plate-shaped and perpendicular to the first direction. The fresh air filter 150 is obliquely arranged, so that the filtering area can be increased, and the filtering effect is improved; and purify and filter 160 perpendicular to the first direction, mean to incline each other with fresh air filter 150, fresh air filter 150 and purify and form the convergent wind channel between filtering 160, and the air guide resistance can be reduced in the convergent wind channel.

In this embodiment, the new air filter 150 is disposed obliquely with respect to the partition 112, and a projection of the new air filter 150 on the partition 112 along the first direction covers at least 80% of the air inlet 113. Because the air that the new trend mouth 123 got into can only reach first region 121 through new trend filter 150, and then reach induced air mouth 113, consequently cover induced air mouth 113 at least 80% through making the projection of new trend filter 150 on baffle 112, guarantee that new trend filter 150 is enough big, can improve the intake of new trend to a certain extent, also improve the filter effect simultaneously.

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, a third supporting plate 118 is further disposed in the first area 121, the third supporting plate 118 and the first supporting plate 116 are located on the same side of the inner wall of the first cavity 120, the first supporting plate 116 and the third supporting plate 118 are respectively located on two opposite sides of the purification opening 124, and two ends of the purification filter 160 are respectively connected to the first supporting plate 116 and the third supporting plate 118 and cover the purification opening 124.

Further, 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. Through with purifying and filtering piece 160 and first backup pad 116 and third backup pad 118 sliding fit to set up the second installing port, can make purifying and filtering piece 160's loading and unloading more convenient.

In the exemplary embodiment of the application, the projection of the fresh air filter 150 onto the partition 112 in the first direction completely covers the projection of the clean filter 160 onto the partition 112 in the first direction. In this embodiment, the fresh air filter 150 is relatively large and its projection onto the partition 112 completely covers the projection of the clean filter 160 onto the partition 112. Specifically, in the second direction, the second support plate 117 is closer to the fresh air opening 123 than the third support plate 118 and the air introduction opening 113, and the projection of the third support plate 118 on the partition 112 at least partially falls into the air introduction opening 113. As shown in fig. 3, in the present embodiment, by defining the relative positions of the second support plate 117, the air-introducing opening 113 and the third support plate 118, the portion of the fresh air filter 150 that extends downward beyond the purifying filter 160 can correspond to a partial area of the air-introducing opening 113, so that the fresh air can enter the air-introducing opening 113 more directly from the portion of the fresh air filter 150 after entering the first chamber 120 through the fresh air opening 123, without interfering with the purifying filter 160 too much, thereby reducing the wind resistance and increasing the fresh air volume.

In the embodiment of the present application, the fresh air device 100 can also realize a pollution discharge function in addition to the fresh air function and the purification function. The sewage discharge function is to introduce indoor air into the fresh air device 100 and then discharge the air to the outside. In this embodiment, the housing 110 is further provided with a sewage port 125 and an outdoor air outlet 132 (see fig. 4), the sewage port 125 is used for communicating with the indoor space, and the outdoor air outlet 132 is used for communicating with the outdoor space. The sewage port 125 is located on a sidewall of the first section 121 of the first chamber 120 and on the same side of the first chamber 120 as the purge port 124. The outdoor air outlet 132 is located in the second chamber 130, and is located at the same side of the second chamber 130 as the indoor air outlet 131. The sewage port 125 may be selectively opened or closed. In this embodiment, when the dirt discharging function is turned on, the indoor air entering through the dirt outlet 125 may not pass through the fresh air filter 150, but may be directly sucked into the second chamber 130 by the fan 140, and finally discharged to the outside through the outdoor air outlet 132.

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 inlet 123 are located on the same side of the whole casing 110, and after the air valve 170 is installed, the air valve 170 covers the outdoor air outlet 132 and the fresh air inlet 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 fresh air device 100 further includes a switching component for alternatively opening one of the indoor air outlet 131 and the outdoor air outlet 132. 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, so that the use of the 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 the present embodiment, the switching assembly is disposed on the air valve 170, and in alternative embodiments, the switching assembly may also be disposed on the housing 110. In this embodiment, the switching assembly further comprises 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 this embodiment, the housing 110 is provided with a sliding door 126, and the sliding door 126 can slide to selectively open or close 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, and therefore, the sewage port 125 can be opened or closed by the sliding door 126, the sliding door 126 blocks the purifying port 124 when the sewage port 125 is opened, blocks the sewage port 125 when the purifying port 124 is opened, and blocks the purifying port 124 and the sewage port 125 simultaneously when the sliding door 126 is opened. 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 fan blade 140 is a centrifugal fan blade, so the volute 119 is adopted to form the second chamber 130. 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 is slidably engaged with the support plate, and the filter can be easily mounted and dismounted.

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 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 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, closes the dirty air port 125, closes the fresh air port 123 by the second rotary damper 173, closes the outdoor air outlet 132 by the first rotary damper 172, and opens the indoor air outlet 131. 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 alternative 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 the length direction (i.e., the horizontal 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 away from the air conditioner main body 200, and thus are away from the air inlet 210, 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 inlet, and the air inlet amount 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 positions 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 located below and is convenient for connecting with 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), a purification filter (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 fresh air port (123), the purification port (124) 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 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 chamber (120) comprises a first zone (121) and a second zone (122), the first zone (121) and the second zone (122) being separated by the fresh air filter (150), the air-intake opening (113) being located on a side wall of the first zone (121), the fresh air opening (123) and the purification opening (124) being located on a side wall of the second zone (122), the purification filter (160) being arranged in the second zone (122) and being adapted to filter the air flowing from the purification opening (124) to the air-intake opening (113), the air flowing from the fresh air opening (123) to the air-intake opening (113) not passing through the purification filter (160), the fresh air opening (123) and the purification opening (124) being selectively openable or closable; the second cavity (130) is provided with an indoor air outlet (131), and the indoor air outlet (131) is used for being communicated with the indoor space.

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 disposed on the partition (112), and the purifying opening (124) is disposed on a side of the first chamber (120) away from the second chamber (130) in the first direction.

3. The fresh air device as claimed in claim 2, characterized in that the projection of the purification opening (124) on the partition (112) at least partially covers the air intake opening (113).

4. 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) is located on a radial side of the fan blade (140).

5. 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).

6. The fresh air device according to claim 5, wherein the fresh air filter (150) and the purifying filter (160) are inclined with respect to each other, and a space between the fresh air filter (150) and the purifying filter (160) gradually shrinks in a direction away from the fresh air opening (123).

7. The fresh air device according to claim 5, characterized in that the fresh air filter (150) is arranged obliquely with respect to the partition (112), the projection of the fresh air filter (150) onto the partition (112) in the first direction covering at least 80% of the air intake (113).

8. The fresh air device according to claim 5, 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).

9. The fresh air device according to claim 5, wherein a third support plate (118) is further disposed in the first region (121), the third support plate (118) and the first support plate (116) are disposed on an inner wall of the first chamber (120) on the same side, and 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 purification filter (160) are respectively connected to the first support plate (116) and the third support plate (118).

10. The fresh air device according to claim 9, characterized in that the first support plate (116) and the third support plate (118) are each slidingly engaged with the purifying filter (160), the housing (110) being provided with a second mounting opening for the extraction or the introduction of the purifying filter (160) from or into the first chamber (120).

11. The fresh air device according to claim 9, characterized in that a projection of the fresh air filter (150) onto the partition (112) in the first direction completely covers a projection of the purification filter (160) onto the partition (112) in the first direction.

12. The fresh air device as claimed in any of claims 1 to 11, wherein the fresh air device (100) comprises a rotary damper that is rotatable to selectively open or close the fresh air port (123).

13. The fresh air device as claimed in any of claims 1 to 11, wherein a sliding door (126) is provided on the housing (110), the sliding door (126) being slidable to selectively open or close the purge port (124).

14. An air conditioner, characterized by comprising an air conditioner main body (200) and a fresh air device (100) according to any one of claims 1 to 13; the first chamber (120), the second chamber (130), and the air conditioner main body (200) are sequentially arranged in a length direction of the air conditioner.