CN218495121U - Fresh air assembly and fresh air conditioner - Google Patents

Abstract

The utility model provides a pair of new trend subassembly and new trend air conditioner is through setting up the flow distribution plate in the wind channel casing to form fan air inlet chamber and air inlet chamber, and keep away from the one end in the fresh air inlet chamber and form the rectification wind channel. When the fresh air component operates, outdoor fresh air enters the air inlet cavity through the fresh air opening and then enters the fan air inlet cavity through the rectification air channel; the rectification air channel can restrain and adjust the air flow passing through the rectification air channel, so that the flow directions of the air flow passing through the rectification air channel are close to be consistent, the disorder of the air flow passing through the connecting air port is avoided, and the generation of vortex and the like in the air inlet cavity and the air inlet cavity of the fan is reduced. In addition, the rectifying pieces are arranged in the rectifying air channel, and can separate a large air flow passing through the rectifying air channel into a plurality of small air flows, so that the large air flow with large internal velocity gradient is effectively prevented from forming vortex and the like in the rectifying air channel, and further, the air flow loss is reduced, and the operation noise is reduced.

Description

Fresh air assembly and fresh air conditioner

Technical Field

The application relates to the technical field of air conditioning equipment, in particular to a fresh air assembly and a fresh air conditioner.

Background

The fresh air machine is an effective air purification device and can circulate indoor air. The air conditioner generally comprises a fan module and an air duct shell which are communicated with each other, wherein a wind wheel is arranged inside the fan module and used for generating suction force, and fresh air is absorbed to the outdoor side through the air duct shell.

Because the volume of the cavity in the air duct shell is larger, fresh air can be quickly diffused at the fresh air port after entering the cavity in the air duct shell, so that turbulent flow is easily formed in the air duct shell, and the fresh air quantity of a fresh air fan is influenced; therefore, in the prior art, the guide plate body is arranged in the air duct shell to form an arc-shaped air duct for guiding the fresh air to be sent into the fan module after the air duct shell rotates for a half cycle, so that the amount of turbulence in the fresh air shell is reduced.

When the fresh air mode is started, as the fresh air needs to pass through the longer arc-shaped air channel in the fresh air shell, partial fresh air can be easily interfered with each other, and the airflow velocity gradient in the arc-shaped air channel is larger, so that the vortex and the like are easily formed in the arc-shaped air channel, and then larger noise is caused.

SUMMERY OF THE UTILITY MODEL

The application provides a new trend subassembly and new trend air conditioner to solve the great technical problem of the running noise of new trend subassembly among the prior art.

In one aspect, the present application provides a fresh air component, including:

a fan module;

the air duct shell is provided with a fresh air port;

a wind channel cavity is formed in the wind channel shell, a splitter plate is arranged in the wind channel shell, and the splitter plate divides the wind channel cavity into a fan air inlet cavity and a fan air inlet cavity;

the fan air inlet cavity is communicated with an air inlet of the fan module, the fresh air inlet is communicated with the air inlet cavity, and the splitter plate is provided with a connecting air inlet communicated with the fan air inlet cavity and the air inlet cavity;

the flow distribution plate is arranged at the position of the connecting air port and extends along a straight line, the flow distribution plate extends into a rectification air channel in the air inlet cavity of the fan, and at least one rectifying sheet is arranged in the rectification air channel.

In one possible implementation manner of the present application, the windward side of the fairing is a wing-shaped cambered surface or a needle-point shape.

In a possible implementation manner of the application, the splitter plate comprises a bottom plate, a rectifying plate and a drainage plate which are connected with each other, the rectifying plate and the drainage plate are installed on the bottom plate, the rectifying plate and the drainage plate are arranged at an included angle, and the rectifying plate, the bottom plate and the inner side wall of the air duct shell jointly enclose to form the rectifying air duct;

the plurality of the rectifying pieces are arranged in the rectifying air duct at equal intervals; or alternatively

It is a plurality of the cowling panel is arranged in the rectification wind channel, and adjacent the interval of cowling panel is towards keeping away from the direction crescent of cowling panel.

In one possible implementation manner of the present application, the rectifying plate is provided with a plurality of micropores.

In one possible implementation manner of the present application, the length of the rectification air duct is B, where B satisfies: b is more than or equal to 3mm and less than or equal to 7mm.

In a possible implementation of this application, the rectification wind channel is the loudspeaker form, just the cross-sectional area in rectification wind channel is towards stretching into the direction in fan inlet chamber increases gradually.

In this application a possible implementation, be equipped with the arc guide plate on the inside wall that the air inlet chamber turned to the department, the arc guide plate is towards being close to air inlet chamber center pin direction is protruding.

In a possible implementation manner of the air inlet structure, the air inlet cavity is a divergent air duct, and the area of the fresh air inlet is smaller than that of the connecting air inlet; or alternatively

The cross-sectional areas of any two positions of the air inlet cavity in the fresh air direction are equal.

In a possible implementation manner of the present application, an air return opening and an air outlet opening are arranged on the air duct shell, the air return opening is communicated with the air inlet cavity of the fan, and the air outlet opening is communicated with the air inlet cavity and the air outlet opening of the fan module;

the fresh air component also comprises a first air valve component for opening or closing the air return opening, the air outlet and the connecting air opening, and a second air valve component for opening or closing the air outlet;

when the fresh air module starts a fresh air mode, the first air valve module opens the connecting air inlet, closes the air return inlet and the air outlet, and closes the air outlet;

when the fresh air component starts an air exhaust mode, the first air valve component opens the air exhaust port and the air return port, the connecting air port is closed, and the second air valve component opens the air outlet.

On the other hand, this application still provides a fresh air conditioner, fresh air conditioner includes air conditioner and the above fresh air subassembly, the fresh air unit mount is in one side of fresh air subassembly.

The utility model provides a pair of new trend subassembly and new trend air conditioner is through setting up the flow distribution plate in the wind channel casing to form fan air inlet chamber and air inlet chamber, and keep away from the one end in the fresh air inlet chamber and form the rectification wind channel. When the fresh air component operates, outdoor fresh air enters the air inlet cavity through the fresh air opening and then enters the fan air inlet cavity through the rectification air channel; the rectification air channel can restrain and adjust the air flow passing through the rectification air channel, so that the flow direction of the air flow passing through the rectification air channel approaches to be consistent, the turbulence of the air flow passing through the connecting air port is avoided, and the generation of eddy currents and the like in the air inlet cavity and the air inlet cavity of the fan is reduced. In addition, the rectifying pieces are arranged in the rectifying air channel, and can separate a large air flow passing through the rectifying air channel into a plurality of small air flows, so that the large air flow with large internal velocity gradient is effectively prevented from forming vortex and the like in the rectifying air channel, and further, the air flow loss is reduced, and the operation noise is reduced.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is an exploded view of a fresh air component provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an air duct housing according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view at E in FIG. 2;

FIG. 4 is also an enlarged schematic view at E in FIG. 2;

FIG. 5 is an enlarged schematic view of the alternate embodiment of FIG. 2 at E;

fig. 6 is a schematic structural diagram of a second air valve assembly provided in an embodiment of the present application.

Reference numerals are as follows:

the air conditioner comprises a fresh air component 100, an air duct shell 200, an air duct cavity 210, an air inlet cavity 220, a fan air inlet cavity 230, a fresh air inlet 240, an air return inlet 250, an air outlet 260, a flow dividing plate 300, a bottom plate 310, a rectifying plate 320, a flow guiding plate 330, a connecting air inlet 340, a rectifying air duct 350, a rectifying sheet 351, an arc-shaped flow guiding plate 360, a fan module 400, a centrifugal wind wheel 410, a rotating motor 420, a volute 430, an air inlet 440, an air outlet 450, a first air valve component 510, a first air door 511, a second air door 512, a second air valve component 520, an air duct adapter 521, a lifting air door 522, a filter screen module 600, a first quadrant zone Q1, a second quadrant zone Q2, a third quadrant zone Q3 and a fourth quadrant zone Q4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 5, an embodiment of the present disclosure provides a fresh air component 100, including: a fan module 400; the air duct shell 200, the fresh air inlet 240 is arranged on the air duct shell 200; a wind channel cavity 210 is formed in the wind channel shell 200, a splitter plate 300 is arranged in the wind channel shell 200, and the splitter plate 300 divides the wind channel cavity 210 into a fan air inlet cavity 230 and an air inlet cavity 220; the fan air inlet cavity 230 is communicated with an air inlet 440 of the fan module 400, the fresh air inlet 240 is communicated with the air inlet cavity 220, and the splitter plate 300 is provided with a connecting air inlet 340 communicated with the fan air inlet cavity 230 and the air inlet cavity 220; the splitter plate 300 is further provided with a rectification air duct 350 extending along a straight line at the position of the connecting air port 340 and extending into the fan air inlet cavity 230, and at least one rectification piece 351 is arranged in the rectification air duct 350.

It should be noted that the fresh air assembly 100 provided in the embodiment of the present application is suitable for a fresh air machine (not shown) or a fresh air conditioner (not shown). The fan module 400 includes a wind wheel, a rotation motor 420, and a volute 430, and the duct housing 200 and the volute 430 are sequentially communicated. The scroll case 430 may be composed of two scroll case bodies (not shown), the wind wheel and the rotation motor 420 are installed in the scroll case 430, and the scroll case 430 is provided with an air inlet 440 and an air outlet 450.

The air duct cavity 210 is formed in the air duct housing 200, the air inlet 440 communicates with the air outlet 450 and forms a fan cavity in the volute 430, the wind wheel and the rotating motor 420 are installed in the fan cavity, and the air duct cavity 210 is connected to the fan cavity through the air inlet 440.

In addition, the fresh air port 240 may extend to the outdoor side; or a fresh air pipe (not shown) is installed on the fresh air opening 240, and one end of the fresh air pipe, which is far away from the fresh air opening 240, is arranged outside the room.

It should be noted that when the fresh air module 100 is in the fresh air mode, the fresh air continuously flows into the fan module 400 through the fresh air inlet 240, the air inlet cavity 220 and the fan inlet cavity 230. Due to the influence of pipeline bending and the like, the air flow velocities at different positions in the air inlet cavity 220 are different, and the gradient of the air flow velocity inside is large; the phenomenon of air flow separation in the air inlet cavity 220, particularly in the rectified air duct 350 after turning, is obvious, and the contents of the rectified air duct 350 are easy to form vortex flows and the like, so that great operation noise is caused.

By arranging the splitter plate 300 in the air duct housing 200, the fan inlet chamber 230 and the air inlet chamber 220 are formed, and the rectification air duct 350 is formed at one end of the air inlet chamber 220 far away from the fresh air inlet 240. When the fresh air assembly 100 operates, outdoor fresh air enters the air inlet cavity 220 through the fresh air opening 240 and then enters the fan air inlet cavity 230 through the rectification air duct 350; the rectification air duct 350 can restrict and adjust the air flow passing through the rectification air duct 350, so that the flow direction of the air flow passing through the rectification air duct 350 is approximately consistent, the turbulence of the air flow passing through the connecting air port 340 is avoided, and the generation of vortexes and the like in the air inlet cavity 220 and the fan air inlet cavity 230 is reduced. In addition, the rectifying pieces 351 are arranged in the rectifying air duct 350, the rectifying pieces 351 can separate a large air flow passing through the rectifying air duct 350 into a plurality of small air flows, the large air flow with large internal velocity gradient is effectively prevented from forming a vortex and the like in the rectifying air duct 350, and then airflow loss is reduced and operation noise is reduced.

Preferably, the wind wheel is a centrifugal wind wheel 410.

The centrifugal wind wheel 410 is more compact than a cross-flow wind wheel and the like, and is more suitable for fresh air conditioners and the like.

Preferably, the rectification air duct 350 is a regular cylindrical air duct or a rectangular parallelepiped air duct.

In some embodiments, the windward side of the fairing 351 is airfoil-shaped cambered surface or needle-point-shaped.

It should be noted that one end of the fairing 351 away from the connecting tuyere 340 is a windward side.

The airfoil cambered surface and the needle-point-shaped windward surface can uniformly separate the airflow passing through the rectifying pieces 351, so that the airflow distribution in the rectifying air duct 350 is more uniform.

Further, in other embodiments, the windward side of the fairing 351 may also be rectangular, or groove-shaped, etc., which is not limited herein.

In some embodiments, the flow distribution plate 300 includes a bottom plate 310, a rectifying plate 320 and a flow guiding plate 330, which are connected to each other, the rectifying plate 320 and the flow guiding plate 330 are installed on the bottom plate 310, the rectifying plate 320 and the flow guiding plate 330 are disposed at an included angle, and the rectifying plate 320, the bottom plate 310 and the inner side wall of the duct housing 200 together enclose a rectifying duct 350; a plurality of fairings 351 are arranged in the rectifying air duct 350 at equal intervals; or a plurality of the rectifying pieces 351 are arranged in the rectifying wind channel 350, and the distance between the adjacent rectifying pieces 351 gradually increases toward the direction away from the rectifying plate 320.

The air inlet cavity 220 is formed by surrounding the air duct shell 200 by three plate bodies, namely the bottom plate 310, the rectifying plate 320 and the flow guide plate 330, so that the structure of the fresh air assembly 100 can be simplified.

Preferably, the bottom plate 310, the rectifying plate 320 and the flow guide plate 330 are all sheet-shaped plate bodies.

And a plurality of rectifying pieces 351 are arranged in the rectifying air duct 350, so that the number of separated airflows of the rectifying pieces 351 can be further increased, the airflow distribution in the rectifying air duct 350 is more uniform, the phenomenon of large velocity gradient in the airflow is effectively avoided, and further the generation of vortexes and the like in the rectifying air duct 350 is reduced.

It will also be appreciated that the angled connection between the flow guide plate 330 and the flow straightening plate 320 forms a turning portion that can direct the air flow in the air inlet chamber 220 to turn. When the airflow turns to and enters the rectification air duct 350 in the air inlet cavity 220, the airflow is more densely distributed near the turning part and has a trend that the airflow distribution amount decreases gradually in the direction away from the turning part. Accordingly, the airflow distribution in the rectification air duct 350 near the rectification plate 320 is more dense, and the airflow distribution also has a tendency of decreasing in sequence toward the direction far away from the rectification plate 320.

Through setting up a plurality of intervals in rectification wind channel 350 and increasing the fairing 351 in proper order, and the fairing 351 that is close to cowling panel 320 arranges more densely, it can match with the air current distribution condition in rectification wind channel 350 for the air velocity of a plurality of strands of air currents that flow out through rectification wind channel 350 and enter into fan air inlet chamber 230 tends to unanimity, and then has reduced the production of the vortex etc. in the fan air inlet chamber 230, has reduced the air current loss of new trend subassembly 100 and has reduced the running noise.

Preferably, the included angle between the plane of the flow guide plate 330 and the plane of the rectifying plate 320 is an acute angle.

In some embodiments, the fairing 351 is provided with a plurality of micro-holes (not shown).

It should be noted that, since the fairing 351 is used for dispersing a large airflow in the fairing duct 350 into a plurality of small airflows, when the airflow velocity is large, the airflow is easy to form low pressure areas on two sides of the fairing 351, and a vortex mass is easy to form in the low pressure area, which may cause large aerodynamic noise at the fairing 351.

The micropore can be so that the air current of commutator bar 351 both sides circulate each other, and the air current through the micropore can flow at commutator bar 351's surface to form the air protection layer, its formation of effectively having avoided the low-pressure zone of commutator bar 351 both sides, and then reduced new trend subassembly 100's running noise.

Preferably, the plurality of micro-hole arrays are disposed on the rectifying sheet 351, and the diameter of the micro-holes ranges from 1mm to 3mm.

In some embodiments, the length of the straightening air channel 350 is B, where B satisfies: b is more than or equal to 3mm and less than or equal to 7mm.

By arranging the rectification air duct 350 with the length of B, the running noise of the fresh air assembly 100 is reduced on the basis of ensuring that the flowing directions of the air flows entering the fan air inlet cavity 230 through the connecting air port 340 are consistent; the occupation of the rectifying air duct 350 on the space of the fan air inlet cavity 230 is reduced, so that enough space is provided for air to diffuse in the fan air inlet cavity 230, the uniformity of air diffusion is improved, and the fresh air volume of the fresh air component 100 is further improved.

Preferably, B =5mm.

In some embodiments, the straightening air channels 350 are flared and the cross-sectional area of the straightening air channels 350 increases in the direction of the fan inlet chamber 230.

It can be understood that the cross-sectional area of the fan air inlet cavity 230 is much larger than that of the rectification air duct 350, and after the airflow enters the fan air inlet cavity 230 through the rectification air duct 350, the airflow in the fan air inlet cavity 230 is disturbed due to the rapid diffusion of fresh air in the fan air inlet cavity 230 caused by the rapid expansion of the space, which further causes a great amount of airflow loss and great aerodynamic noise.

Through setting up the rectification wind channel 350 into loudspeaker form, can guide the new trend and evenly spread gradually in the rectification wind channel 350 to make the new trend can also roughly keep its flow direction after getting into fan air inlet chamber 230, effectively avoided the turbulent phenomenon of air current in the fan air inlet chamber 230, and then improved the fresh air volume of new trend subassembly 100 and reduced the running noise.

Referring to fig. 1 to 3, in some embodiments, the fan module 400 includes a centrifugal wind wheel 410, and an air inlet surface of the centrifugal wind wheel 410 is formed with a first quadrant region Q1, a second quadrant region Q2, a third quadrant region Q3 and a fourth quadrant region Q4 in sequence along a clockwise direction; on the plane of the air intake surface, the air outlet 450 of the fan module 400 is located in the first quadrant region Q1, and the extending direction of the connecting air outlet 340 faces the third quadrant region Q3 and/or the fourth quadrant region Q4.

In particular, the wind wheel provided in the embodiment of the present application is a centrifugal wind wheel 410, so the fan module 400 is a centrifugal fan. The air inlet direction of the centrifugal wind wheel 410 is the direction of air flowing from the air duct cavity 210 to the centrifugal wind wheel 410, and the plane perpendicular to the air inlet direction is the air inlet surface.

It should be noted that, after the air flow enters the rotating centrifugal wind wheel 410, the air flow is thrown out by the centrifugal force, and flows along the volute 430 and flows out from the air outlet 450. Therefore, under the influence of the air flow flowing out from the air outlet 450, the air pressure of the centrifugal fan in the region near the air outlet 450 and the region corresponding to the extending direction of the air outlet 450 will be reduced rapidly, the attraction force of the region to the air flow is low, i.e. the low pressure region, and the remaining region is the high pressure region. In the embodiment of the present application, please refer to the drawings, since the air outlet 450 is disposed from the upper side, and the air outlet 450 extends upward, the air inlet surface of the centrifugal fan 410 is sequentially defined as a first quadrant Q1, a second quadrant Q2, a third quadrant Q3, and a fourth quadrant Q4 along the clockwise direction, wherein the first quadrant Q1 and the second quadrant Q2 of the centrifugal fan have a lower attraction force to the air flow.

By arranging the extension direction of the connecting air opening 340 towards the third quadrant region Q3 and/or the fourth quadrant region Q4, that is, the whole rectification air duct 350 is inclined towards the third quadrant region Q3 and/or the fourth quadrant region Q4, the air flow entering the fan air inlet cavity 230 through the air inlet cavity 220 can be guided to the high-pressure region of the centrifugal wind wheel 410, and the air inlet amount of the fan module 400 can be increased.

In some embodiments, the fresh air assembly 100 is provided with a screen module 600.

Through install filter screen module 600 in new trend subassembly 100, can improve the air quality through fan module 400, user experience is better.

In some embodiments, an arc-shaped baffle plate 360 is disposed on the inner side wall of the turning portion of the air inlet cavity 220, and the arc-shaped baffle plate 360 protrudes toward the central axis of the air inlet cavity 220.

It should be noted that the inner sidewall of the turning part of the air inlet cavity 220 is located at the connecting part of the flow guiding plate 330 and the flow rectifying plate 320, i.e. the turning part, and the air flow is turned and distributed more densely in this area.

It should be noted that the air inlet cavity 220 can be regarded as a cylindrical air duct, and the central axis thereof is a connecting line of the centers of the two bottom surfaces.

The arc-shaped guide plate 360 is arranged at the turning position of the air inlet cavity 220, so that air flow can be guided to smoothly turn into the turning air channel, the shock wave phenomenon possibly caused when the air flow passes through the bulge at the connecting position of the flow guide plate 330 and the rectifying plate 320 is avoided, and the pneumatic noise at the connecting position of the flow guide plate 330 and the rectifying plate 320 is reduced.

In addition, the arc-shaped guide plate 360 protrudes towards the direction close to the central axis of the air inlet cavity 220, so that the air flow can be guided to flow towards the central axis of the air inlet cavity 220, the gathering of a large amount of air flow in the area near the turning part is effectively avoided, and the air flow distribution in the air inlet cavity 220 is more uniform.

In some embodiments, the air inlet cavity 220 is a divergent air duct, and the area of the fresh air inlet 240 is smaller than the area of the connecting air inlet 340; or the cross sectional areas of any two positions of the air inlet cavity 220 in the fresh air direction are equal.

The air inlet cavity 220 is arranged as a gradually expanding air duct, which can enable the air flow to have sufficient space diffusion in the air inlet cavity 220, effectively avoid the phenomenon of air flow blockage in the air inlet cavity 220, and enable the air flow distribution in the air inlet cavity 220 to be more uniform.

Preferably, the profile of the inner wall surface enclosing the air inlet chamber 220 is a diverging profile.

A plurality of panels of gradually expanding profile enclose the air inlet chamber 220.

In addition, the cross-sectional area of each position on the central axis in the air inlet cavity 220 is set to be the same, which effectively avoids the phenomenon that the air flow is suddenly contracted and/or expanded in the air inlet cavity 220 towards the air duct, further reduces the air loss and lowers the pneumatic noise.

Preferably, the molded line of the inner wall surface enclosing the air inlet cavity 220 is a non-shrinkage and non-expansion molded line.

Referring to fig. 1, 2, 4 and 6, in some embodiments, the air duct housing 200 is provided with an air return opening 250 and an air outlet opening 260, the air return opening 250 is communicated with the fan air inlet chamber 230, and the air outlet opening 260 is communicated with the air inlet chamber 220 and the air outlet 450 of the fan module 400; the fresh air assembly 100 further comprises a first air valve assembly 510 for opening or closing the air return opening 250, the air exhaust opening 260 and the connecting air opening 340, and a second air valve assembly 520 for opening or closing the air outlet 450; when the fresh air module 100 starts the fresh air mode, the first air valve module 510 opens the connecting air opening 340, and closes the air return opening 250 and the air outlet 260, and the second air valve module 520 closes the air outlet 450; when the fresh air module 100 is in the air exhaust mode, the first air valve module 510 opens the air exhaust port 260 and the air return port 250, closes the connecting air port 340, and opens the air outlet 450.

A fan air inlet cavity 230 communicated with a return air inlet 250 and an air inlet cavity 220 communicated with a fresh air inlet 240 and an air outlet 260 are formed in the air duct shell 200; then the air inlet cavity 220 is communicated with the fan air inlet cavity 230 through the connecting air opening 340; and the fan module 400, the first air valve assembly 510 and the second air valve assembly 520 are started to open or close the connection air inlet 340, the air outlet 260, the air return 250 and the air outlet 450 in the fresh air assembly 100. The switching of the fresh air component 100 among the fresh air mode, the internal circulation mode and the air exhaust mode can be realized.

The operation states of the fresh air component 100 in different operation modes are as follows: when the fresh air module 100 starts the fresh air mode, the connecting air opening 340 and the air outlet 450 are opened, the air return opening 250 and the air outlet 260 are closed, outdoor fresh air enters the air inlet cavity 220 from the fresh air opening 240, enters the fan air inlet cavity 230 through the connecting air opening 340, and finally flows out of the air outlet 450 of the fan module 400 to the indoor; when the fresh air assembly 100 starts the internal circulation mode, the air return opening 250 and the air outlet 450 are opened, the air inlet 340 and the air outlet 260 are closed, indoor dirty air enters the fan air inlet cavity 230 from the air return opening 250 and flows out of the air outlet 450 of the fan module 400 to the indoor; when the fresh air module 100 starts the air exhaust mode, the air return opening 250 and the air exhaust opening 260 are opened, the air inlet 340 and the air outlet 450 are closed, indoor dirty air enters the fan air inlet cavity 230 from the air return opening 250, flows to the air exhaust opening 260 through the air outlet 450 of the fan module 400, and finally flows out of the fresh air opening 240 to the outside through the air inlet cavity 220.

In some embodiments, first damper assembly 510 includes a first damper 511 and a second damper 512; the first damper 511 has two states of closing the return air opening 250 and closing the connection air opening 340, and the second damper 512 has two states of closing the exhaust air opening 260 and closing the connection air opening 340.

The first air door 511 is arranged to close the return air inlet 250 and the connecting air inlet 340, and the second air door 512 is arranged to close the exhaust outlet 260 and the connecting air inlet 340, so that the motion states of the first air door 511 and the second air door 512 can be simplified, and the reliability of the first air valve assembly 510 can be improved.

Specifically, the first damper 511 and the second damper 512 are rotatably installed in the air duct housing 200.

In this way, only one motor is required to be installed for driving the first damper 511 and the second damper 512 to rotate, so as to simplify the structure of the first damper assembly 510.

In some embodiments, second air valve assembly 520 includes an air duct adapter 521 and a lift damper 522, with lift damper 522 slidably mounted within air duct adapter 521.

The lifting air door 522 of sliding installation can make the flow direction of the air current that flows out through the air outlet 450 unanimous with the slip direction of lifting air door 522, has reduced the stopping of lifting air door 522 to the air-out air current, has improved the fresh air volume, and user experience is better comfortable.

The application also provides a fresh air conditioner (not shown in the figure), the fresh air conditioner comprises an air conditioner (not shown in the figure) and the fresh air component 100, and the fresh air component 100 is installed on one side of the fresh air component 100. Because this new trend air conditioner has foretell new trend subassembly 100, consequently has all the same beneficial effects, the utility model discloses no longer describe herein.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The fresh air component 100 and the fresh air conditioner provided in the embodiment of the present application are described in detail above, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A fresh air assembly, comprising:

a fan module;

the air duct shell is provided with a fresh air port;

a wind channel cavity is formed in the wind channel shell, a splitter plate is arranged in the wind channel shell, and the splitter plate divides the wind channel cavity into a fan wind inlet cavity and a fan wind inlet cavity;

the fan air inlet cavity is communicated with an air inlet of the fan module, the fresh air inlet is communicated with the air inlet cavity, and the splitter plate is provided with a connecting air inlet communicated with the fan air inlet cavity and the air inlet cavity;

the flow distribution plate is arranged at the position of the connecting air port and extends along a straight line, the flow distribution plate extends into a rectification air channel in the air inlet cavity of the fan, and at least one rectifying sheet is arranged in the rectification air channel.

2. The fresh air component as claimed in claim 1, wherein the windward side of the fairing is a wing-shaped cambered surface or a needle-point shape.

3. The fresh air assembly as claimed in claim 1, wherein the flow distribution plate comprises a bottom plate, a rectifying plate and a flow guiding plate which are connected with each other, the rectifying plate and the flow guiding plate are mounted on the bottom plate, the rectifying plate and the flow guiding plate are arranged at an included angle, and the rectifying plate, the bottom plate and the inner side wall of the air duct shell together enclose the rectifying air duct;

the plurality of rectifying pieces are arranged in the rectifying air duct at equal intervals; or

The plurality of the rectifying pieces are arranged in the rectifying air duct, and the distance between every two adjacent rectifying pieces is gradually increased towards the direction far away from the rectifying plate.

4. The fresh air component of claim 1 wherein the fairing is provided with a plurality of micro-holes.

5. The fresh air assembly as claimed in claim 1, wherein the length of the rectification air duct is B, wherein B satisfies: b is more than or equal to 3mm and less than or equal to 7mm.

6. The fresh air assembly as claimed in claim 1, wherein the rectifying air duct is trumpet-shaped, and the cross-sectional area of the rectifying air duct increases toward the direction extending into the air inlet cavity of the fan.

7. The fresh air module as claimed in claim 1, wherein an arc-shaped baffle is arranged on the inner side wall of the turning portion of the air inlet cavity, and the arc-shaped baffle protrudes towards the direction close to the central axis of the air inlet cavity.

8. The fresh air assembly as claimed in claim 1, wherein the air inlet chamber is a divergent air duct, and the area of the fresh air opening is smaller than that of the connecting air opening; or

The cross-sectional areas of any two positions of the air inlet cavity along the fresh air direction are equal.

9. The fresh air assembly as claimed in any one of claims 1 to 8, wherein the duct housing is provided with an air return opening and an air outlet opening, the air return opening is communicated with the air inlet cavity of the fan, and the air outlet opening is communicated with the air inlet cavity and the air outlet opening of the fan module;

the fresh air component also comprises a first air valve component for opening or closing the air return opening, the air outlet and the connecting air opening, and a second air valve component for opening or closing the air outlet;

when the fresh air module starts a fresh air mode, the first air valve module opens the connecting air inlet, closes the air return inlet and the air outlet, and closes the air outlet;

when the fresh air component starts the air exhaust mode, the first air valve component opens the air exhaust port and the air return port, the connecting air port is closed, and the second air valve component opens the air outlet.

10. A fresh air conditioner, characterized in that, the fresh air conditioner includes air conditioner and the fresh air subassembly of any one of claims 1-9, the fresh air subassembly is installed in one side of the fresh air subassembly.

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