CN217357198U - Fresh air filtering device for air conditioner and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioning, and discloses a fresh air filtering device for an air conditioner, which comprises a separation chamber, an air outlet pipeline and an air inlet pipeline, wherein the top end of the separation chamber is provided with an air outlet; the first end of the air outlet pipeline is communicated with the air outlet of the separation chamber, and the second end of the air outlet pipeline extends to the air outlet of the air conditioner; the first end of the air inlet pipeline is communicated with the separation chamber, and the second end of the air inlet pipeline is communicated with the outdoor environment; and the second end of the air outlet pipeline is arranged along the air outlet direction of the air conditioner, and the air in the separation chamber is sucked into the environment where the air conditioner is located when the air conditioner is exhausted. The application also discloses an air conditioner.

Description

Fresh air filtering device for air conditioner and air conditioner

Technical Field

The application relates to the technical field of air conditioning, for example to a fresh air filtering device for an air conditioner and the air conditioner.

Background

The air conditioner with the fresh air function can introduce air in an outdoor environment into a room, and the quality of the indoor environment is improved. In some cases, dust in the air of the outdoor environment is more, and therefore, the fresh air system needs to filter the dust in the air.

In the prior art, a split type house fresh air purification system is disclosed, which comprises an outdoor processing unit and an indoor air supply processing unit connected with the outdoor processing unit through a pipeline; the outdoor processing unit comprises a first shell, a cyclone dust collector and a centrifugal fan, wherein the cyclone dust collector and the centrifugal fan are arranged in the first shell; the shell is provided with an air inlet, and the air inlet of the cyclone dust collector is connected with the air inlet through a pipeline; the air outlet of the cyclone dust collector is connected with the air inlet of the centrifugal fan through a pipeline; the air outlet of the centrifugal fan is connected with an outdoor unit connecting port through a pipeline; and the connecting port is connected with a connecting port of the indoor air supply processing unit through a pipeline.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the cyclone dust collector relies on cyclone created by a centrifugal fan to separate dust from air. When the centrifugal fan operates, noise is generated, and extra electric energy consumption is caused.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a fresh air filtering device for an air conditioner and the air conditioner, and aims to solve the problem of how to filter fresh air of the air conditioner more environmentally.

In some embodiments, the fresh air filtering device for the air conditioner comprises a separation chamber, an air outlet pipeline and an air inlet pipeline, wherein the top end of the separation chamber is provided with an air outlet; the first end of the air outlet pipeline is communicated with the air outlet of the separation chamber, and the second end of the air outlet pipeline extends to the air outlet of the air conditioner; a first end of the air inlet pipeline is communicated with the separation chamber, and a second end of the air inlet pipeline is communicated with the outdoor environment; and the second end of the air outlet pipeline is arranged along the air outlet direction of the air conditioner, and the air in the separation cavity is sucked into the environment where the air conditioner is located when the air conditioner is exhausted.

In some embodiments, the separation chamber includes a first side wall and a top plate, wherein the first side wall is cylindrical, the first side wall is provided with an air inlet along a first radial line, and a first end of the air inlet pipe is communicated with the air inlet and forms a first included angle with the first radial line; the top plate covers the top end of the first side wall, and an air outlet of the separation chamber is formed in the top plate and is away from the first side wall by a first distance; air entering the separation chamber through the air inlet pipeline flows to form spiral airflow along the side wall of the separation chamber, dust slides to the bottom along the side wall of the separation chamber, and clean air enters the indoor space through the air outlet pipeline.

In some embodiments, the separation chamber further includes a second side wall having a conical shape, a first end of the second side wall is connected to a bottom end of the first side wall, a sectional area of the second side wall decreases gradually from top to bottom, and a dust outlet is disposed at a bottom end of the second side wall.

In some embodiments, the cross-section of the air inlet duct decreases from the second end to the first end of the air inlet duct.

In some embodiments, the separation chamber further comprises a first screen and/or a second screen, wherein the first screen is disposed at the air outlet of the separation chamber, and the second screen is disposed at the second end of the air inlet duct.

In some embodiments, the opening of the second end of the air inlet duct faces downward.

In some embodiments, the first end of the air inlet duct is angled downwardly from above in the direction of air flow.

In some embodiments, the fresh air filtering device further comprises a clamp and a fixing plate, wherein the clamp is sleeved on the first side wall; and the fixing plate is connected with the clamp, and the separation chamber is fixed at a preset installation position through the fixing plate.

In some embodiments, the fresh air filtering device further includes an adsorption module disposed in the air inlet duct for adsorbing impurities in the air entering the room.

In some embodiments, the air conditioner comprises the fresh air filtering device.

The fresh air filtering device and the air conditioner for the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

by using the fresh air filtering device for the air conditioner and the air conditioner, the dust and impurity are separated by using the characteristics of high density of the dust and impurity and high movement inertia of the dust and impurity, the air quality of fresh air entering a room is improved, and the user experience is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

fig. 1 is a schematic structural view of a fresh air filtering device for an air conditioner according to an embodiment of the present disclosure;

FIG. 2 is a top view of a fresh air filtering device for an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a bottom view of a fresh air filtering device for an air conditioner according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of another fresh air filtering device for an air conditioner according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of another fresh air filtering device for an air conditioner according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a separation chamber of a fresh air filtering device for an air conditioner according to an embodiment of the present disclosure.

Reference numerals:

100: a separation chamber; 110: a first side wall; 111: an air inlet; 120: a top plate; 121: an air outlet; 130: a second side wall; 131: a dust outlet;

200: an air outlet pipeline;

300: an air inlet pipeline;

400: a second filter screen;

510: clamping a hoop; 520: and (7) fixing the plate.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 6, an embodiment of the present disclosure provides an air conditioner including a fresh air filtering device. The fresh air filtering device comprises a separation chamber 100, an air outlet pipeline 200 and an air inlet pipeline 300, wherein the top end of the separation chamber 100 is provided with an air outlet 121; an air outlet duct 200 having a first end connected to the air outlet 121 of the separation chamber 100 and a second end extending to the air outlet of the air conditioner; an air inlet duct 300 having a first end communicating with the separation chamber 100 and a second end communicating with the outdoor environment; the second end of the air outlet pipe 200 is arranged along the air outlet direction of the air conditioner, and the air in the separation chamber 100 is sucked into the environment where the air conditioner is located when the air conditioner is exhausted.

In the embodiment of the disclosure, the air conditioner is provided with an air inlet and an air outlet, and a fan and a heat exchanger are arranged between the air inlet and the air outlet. And the fan operates to drive air to flow through the heat exchanger from the air inlet and blow out from the air outlet. The air flowing through the heat exchanger exchanges heat with the heat exchanger. The air conditioner runs in a heating mode, and the temperature of air flowing through the heat exchanger is increased; when the air conditioner operates in a cooling mode, the temperature of air flowing through the heat exchanger is lowered.

The second end of the air outlet pipeline 200 of the fresh air filtering device extends to the air outlet of the air conditioner and is arranged along the air outlet direction of the air conditioner. When the air conditioner is driven by the blower to discharge air, the air flows from the air conditioner to the indoor, and a negative pressure is formed at the second end of the air discharge duct 200, so that the air in the separation chamber 100 is sucked into the indoor environment. By means of the 'injection and suction effect', the fresh air filtering device can suck outdoor air into the room without arranging an additional air driving device, so that the air conditioner can realize the fresh air function. An additional air driving device is not needed, so that electric energy is saved, and the noise of the air conditioner during operation is reduced.

When the air conditioner sucks air in the separation chamber 100 into the room under the jet-suction effect, the negative pressure at the second end of the air outlet duct 200 is transmitted to the separation chamber 100, and is transmitted to the air inlet duct 300 through the separation chamber 100. The air entering the separation chamber 100 from the intake duct 300 is mixed with a portion of the dust impurities. Air containing dust impurities enters the separation chamber 100, on one hand, the dust impurities in the air fall into the bottom of the separation chamber 100 under the action of gravity, and clean air enters the chamber from the top of the separation chamber 100, so that the separation of the dust impurities is completed; on the other hand, the air introduced into the separation chamber 100 along the intake duct 300 contacts the sidewall of the separation chamber 100 by inertia, kinetic energy of the dust and impurities is absorbed, and falls into the bottom of the separation chamber 100 along the sidewall of the separation chamber 100, and clean air is introduced into the chamber from the top of the separation chamber 100, thereby completing the separation of the dust and impurities.

Set up separation cavity 100, intake stack 300 and air-out pipeline 200, utilize the great and great nature of motion inertia of dust impurity's the great density of dust impurity to accomplish the separation to dust impurity, improved the air quality who gets into indoor new trend, improved user and used experience.

When filtering the new trend, set up the filter screen during the most commonly used mode. When the mesh number of filter screen is more, the filter effect to the air is good, but the filter screen inefficacy cycle is shorter, and use cost is higher, and the influence to the intake is great moreover. When the mesh number of the filter screen is less, the filter screen is not easy to have good filtering effect. The utility model discloses a new trend filter equipment can use with the filter screen cooperation, also can the exclusive use, and when collocation suitable filter screen used, the effect was better.

Optionally, the separation chamber 100 includes a first side wall 110 and a top plate 120, where the first side wall 110 is cylindrical, the first side wall 110 has an air inlet 111 along a first radial line, and a first end of the air inlet duct 300 is communicated with the air inlet 111 and forms a first included angle with the first radial line; a top plate 120 covering the top end of the first sidewall 110, wherein the air outlet 121 of the separation chamber 100 is configured on the top plate 120 and is spaced from the first sidewall 110 by a first distance; the air entering the separation chamber 100 through the air inlet duct 300 flows along the sidewall of the separation chamber 100 to form a spiral air flow, the dust slides down to the bottom along the sidewall of the separation chamber 100, and the clean air enters the room through the air outlet duct 200.

The first sidewall 110 is formed in a cylindrical shape and is open at the top. The top cover covers the opening at the top of the first side wall 110. The first side wall 110 is provided with an air inlet 111, and a radial line where the air inlet 111 is located is a first radial line. The first end of the air inlet duct 300 is connected to the air inlet 111 and forms a first included angle with the first radial line, and specifically, the first included angle is 60 degrees to 90 degrees. Thus, the air introduced into the separation chamber 100 along the first end of the intake duct 300 easily spirals along the sidewall of the separation chamber 100. When the air moves spirally, the air has a relatively long stroke in the separation chamber 100, and dust and impurities in the air are easily separated. When the air moves spirally in the separation chamber 100, the high pressure area is formed at the periphery of the separation chamber 100, the low pressure area is formed at the middle of the separation chamber 100, the specific gravity of the dust and the impurities is large, the dust and the impurities are concentrated in the high pressure area at the periphery of the separation chamber 100, and the dust and the impurities slide down to the bottom of the separation chamber 100 along the side wall of the separation chamber 100. The air in the low-pressure area is relatively clean. The air outlet 121 of the separation chamber 100 is located above the low pressure region, and the air outlet 121 is at a low pressure, so that clean air in the low pressure region of the separation chamber 100 is sucked into the air outlet duct 200 and sent to the room.

The outlet 121 is a first distance from the first sidewall 110, for example, the outlet 121 of the separation chamber 100 is circular, has a center located on the axis of the first sidewall 110, and has a diameter smaller than that of the first sidewall 110. Thus, the top plate 120 blocks the air enriched with dust and impurities in the high pressure area of the separation chamber 100 from entering the air inlet duct 300, which facilitates the separation of the dust and impurities in the separation chamber 100.

Optionally, the separation chamber 100 further includes a second sidewall 130 having a conical shape, a first end of the second sidewall 130 is connected to a bottom end of the first sidewall 110, a cross-sectional area of the second sidewall 130 decreases gradually from top to bottom, and a dust outlet 131 is formed at a bottom end of the second sidewall 130.

The second sidewall 130 is in the shape of an inverted cone, and the bottom edge of the cone is connected to the bottom edge of the first sidewall 110, so that the separation chamber 100 is sealed, the tip of the cone is located at the bottom, and a dust outlet 131 is formed at the tip of the cone. When the air moves in the space formed by the second sidewall 130, the cross section of the second sidewall 130 is gradually reduced from top to bottom, the air is easily turbulent, and the dust and impurities in the air are more easily contacted with the sidewall, so that the kinetic energy of the movement is reduced and the air falls to the bottom of the separation chamber 100. The wall surface of the second side wall 130 gradually recedes inward from the top to the bottom, thereby forming a landslide. Dust falling on the inner wall of the second side wall 130 more easily slides down the ramp and leaves the separation chamber 100 from the dust outlet 131 at the bottom of the second side wall 130. The arrangement is beneficial to separating and discharging dust and impurities in the air.

Optionally, the cross-section of the air inlet duct 300 decreases from the second end to the first end of the air inlet duct 300.

When the air flows along the intake duct 300 from the second end to the first end, the flow rate of the air is gradually increased because the cross-section of the intake duct 300 is gradually reduced. Air enters the separation chamber 100 from the first end of the air inlet duct 300, and the faster air flow rate facilitates the air to spiral along the wall surface of the separation chamber 100, so that dust and impurities in the air are better separated. Due to the arrangement mode, the separation effect of the fresh air filtering device on dust in the air is improved.

Optionally, the separation chamber 100 further includes a first filter screen disposed at the air outlet 121 of the separation chamber 100.

The air outlet 121 of the separation chamber 100 is provided with a first filter for filtering air introduced into the room through the air inlet duct 300. The first screen filters dust impurities in the air as a supplement when the centrifugal separation of the separation chamber 100 fails to achieve the desired effect. Be provided with first filter screen, can improve the filter effect of new trend filter equipment to the air, especially ensured the air quality who gets into indoor new trend when centrifugal separation effect is not good.

Optionally, the separation chamber 100 further comprises a second screen 400 disposed at a second end of the intake duct 300.

The second screen 400 is used to perform preliminary filtering of the air introduced into the separation chamber 100. The second end of the air inlet duct 300 is exposed to the outdoor environment, and the second filter screen 400 is arranged to mainly filter impurities such as large leaves, hay, and the like. Thereby preventing larger impurity from entering the fresh air filtering device.

Optionally, the mesh count of the first screen is greater than the mesh count of the first screen.

The mesh number of first filter screen is more, and the filter effect is better. The second screen 400 has a smaller mesh number and larger holes. Thus, the first filter screen and the second filter screen 400 are matched with each other, the second filter screen 400 primarily screens impurities in the air, and the second filter screen 400 filters the air after centrifugal separation. The mesh number of the first filter screen is less, and the failure period is longer. The air passing through the second screen 400 is less contaminated with dust and impurities and the second screen 400 has a longer period of failure after passing through the filtering of the first screen and the centrifugal separation of the separation chamber 100. The use cost of the fresh air filtering device is reduced by the arrangement mode.

Optionally, the opening of the second end of the air inlet duct 300 is downward.

The second end of the air inlet duct 300 is exposed to the outside, and if impurities such as leaves fall into the opening of the second end, the air inlet duct 300 is blocked, and if fermented, bad smell is generated. The downward opening of the air inlet pipe 300 can prevent rainwater from entering the fresh air filtering device, and can also prevent leaves and small insects from entering the separation chamber 100. Such setting form has improved new trend filter equipment's job stabilization nature.

Optionally, the first end of the air inlet duct 300 is angled downwardly from above in the direction of air flow.

The first end of the inlet duct 300 is inclined from the top to the bottom in the air flow direction so that the air entering the separation chamber 100 has a certain initial velocity downward. The dust impurities in the air have a relatively large kinetic inertia and tend to fall down into the bottom of the separation chamber 100 with an initial velocity downward. Air is drawn into the indoor environment from the air outlet 121 of the separation chamber 100. This arrangement facilitates the separation of dust impurities in the air in the separation chamber 100.

Optionally, the fresh air filtering device further includes a clamp 510 and a fixing plate 520, wherein the clamp 510 is sleeved on the first sidewall 110; and a fixing plate 520 coupled to the yoke 510, and the separation chamber 100 is fixed at a predetermined installation position by the fixing plate 520.

The clip 510 cooperates with the fixing plate 520 to fix the separation chamber 100 in a predetermined installation position. The collar 510 surrounds the first separation chamber 100, clamping and securing the separation chamber 100. The fixing plate 520 is used to fix the yoke 510 at a predetermined installation position. For example, when the separation chamber 100 needs to be fixed to an outdoor wall surface, the fixing plate 520 has bolt holes formed therein, and the fixing plate 520 is fixed to the wall surface by bolts. The fixing plate 520 can be adhered to the wall surface by glue when the punching is inconvenient.

Optionally, the air inlet duct 300 is further provided with a blower for driving air to flow from the first end to the second end of the air outlet duct 200.

Under normal conditions, only rely on the effect of penetrating of indoor fan to inhale can realize the new trend function. When the wind speed is high in the outdoor environment or the fan of the air conditioner does not operate, the fresh air function cannot be realized by means of the jetting and sucking functions of the air outlet 121 of the air conditioner. The air inlet pipe 300 is provided with a fan, and fresh air can be conveyed indoors by starting the fan. The fan is arranged, so that the fresh air function can be realized when the air conditioner does not operate the refrigeration and heating mode, and the use of a user is facilitated.

Optionally, the intake duct 300 is further provided with a check valve to prevent the indoor air from flowing backward to the outside through the fresh air filtering device. When the air conditioner is not in operation, the second end of the air outlet duct 200 and the second end of the air inlet duct 300 are in a conduction state. If the wind blows outdoors, the air flows at high speed and is easy to suck the indoor air to the outdoors through the fresh air filtering device. The check valve is arranged, so that the condition can be avoided, and the working reliability of the fresh air filtering device is improved.

Optionally, the air outlet pipe 200 is further provided with a check valve to prevent the indoor air from flowing backward to the outside through the fresh air filtering device. When the air conditioner is not in operation, the second end of the air outlet duct 200 and the second end of the air inlet duct 300 are in a conduction state. If the outdoor wind blows, the air flows at high speed and is easy to suck the indoor air to the outdoor through the fresh air filtering device. The check valve can avoid the occurrence of the condition, and the working reliability of the fresh air filtering device is improved.

Optionally, an air deflector is further disposed at the air outlet of the air conditioner, and the second end of the air outlet duct 200 is plugged when the air deflector is closed. Therefore, the fresh air filtering device is sealed by the air guide plate. Thereby preventing the outdoor environment from sucking the indoor air backwards and improving the use reliability of the fresh air filtering device.

Optionally, the fresh air filtering device further includes an adsorption module disposed in the air inlet duct 300 for adsorbing impurities in the air entering the room.

The first and second sieves 400 and the separation chamber 100 can separate and filter only the granular impurities in the air. The outdoor environment sometimes has peculiar smell caused by impurities in molecular state in the air. The adsorption module is arranged on the air inlet pipe 300, so that small molecular impurities in the air can be adsorbed, and the air entering the room is fresher.

Optionally, the adsorption device comprises an activated carbon adsorbent. The activated carbon adsorbent can adsorb molecular impurities in the air, and the activated carbon is low in price and easy to obtain. The activated carbon adsorbent can be used for recovering the adsorption activity by heating, solarization and other modes after being used for a certain time.

With reference to fig. 1 to 6, the embodiment of the present disclosure provides a fresh air filtering device for an air conditioner, including a separation chamber 100, an air outlet duct 200 and an air inlet duct 300, wherein an air outlet 121 is formed at a top end of the separation chamber 100; an air outlet duct 200 having a first end connected to the air outlet 121 of the separation chamber 100 and a second end extending to the air outlet of the air conditioner; an air inlet duct 300 having a first end communicating with the separation chamber 100 and a second end communicating with the outdoor environment; the second end of the air outlet pipe 200 is arranged along the air outlet direction of the air conditioner, and the air in the separation chamber 100 is sucked into the environment where the air conditioner is located when the air conditioner is exhausted.

The air entering the separation chamber 100 from the intake duct 300 is mixed with a portion of the dust impurities. Air containing dust impurities enters the separation chamber 100, on one hand, the dust impurities in the air fall into the bottom of the separation chamber 100 under the action of gravity, and clean air enters the chamber from the top of the separation chamber 100, so that the separation of the dust impurities is completed; on the other hand, the air introduced into the separation chamber 100 along the intake duct 300 contacts the sidewall of the separation chamber 100 by inertia, kinetic energy of the dust and impurities is absorbed, and falls into the bottom of the separation chamber 100 along the sidewall of the separation chamber 100, and clean air is introduced into the chamber from the top of the separation chamber 100, thereby completing the separation of the dust and impurities.

Set up separation cavity 100, intake stack 300 and air-out pipeline 200, utilize the great and great nature of motion inertia of dust impurity's the great density of dust impurity to accomplish the separation to dust impurity, improved the air quality who gets into indoor new trend, improved user and used experience.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A fresh air filtering device for an air conditioner, comprising:

the top end of the separation chamber is provided with an air outlet;

the first end of the air outlet pipeline is communicated with the air outlet of the separation chamber, and the second end of the air outlet pipeline extends to the air outlet of the air conditioner;

the first end of the air inlet pipeline is communicated with the separation chamber, and the second end of the air inlet pipeline is communicated with the outdoor environment;

and the second end of the air outlet pipeline is arranged along the air outlet direction of the air conditioner, and the air in the separation chamber is sucked into the environment where the air conditioner is located when the air conditioner is exhausted.

2. The fresh air filtration device of claim 1 wherein the separation chamber comprises:

the first side wall is cylindrical, an air inlet is formed in the first side wall along a first radial line, and a first end of the air inlet pipeline is communicated with the air inlet and forms a first included angle with the first radial line;

the top plate covers the top end of the first side wall, and the air outlet of the separation chamber is formed in the top plate and is away from the first side wall by a first distance;

wherein, the air that gets into the separation cavity through the air inlet pipe follows the lateral wall flow of separation cavity forms spiral air current, and the dust is followed the lateral wall landing to the bottom of separation cavity, and clean air passes through it is indoor that the air-out pipeline gets into.

3. The fresh air filtration device of claim 2 wherein the separation chamber further comprises:

the first end of the second side wall is connected to the bottom end of the first side wall, the sectional area is gradually reduced from top to bottom, and a dust outlet is formed in the bottom end of the second side wall.

4. The fresh air filtration device of claim 1,

the cross-section of the air inlet pipeline is gradually reduced from the second end to the first end of the air inlet pipeline.

5. The fresh air filtration device of claim 1 further comprising:

a first filter screen arranged at the air outlet of the separation chamber, and/or,

and the second filter screen is arranged at the second end of the air inlet pipeline.

6. The fresh air filtration device of claim 1,

and the opening of the second end of the air inlet pipeline faces downwards.

7. The fresh air filtration device of claim 1,

the first end of the air inlet pipeline inclines from top to bottom along the air flowing direction.

8. The fresh air filtration device of claim 2 further comprising:

the clamp is sleeved on the first side wall;

and the fixing plate is connected with the clamp, and the separation chamber is fixed at a preset installation position through the fixing plate.

9. The fresh air filtration device as claimed in any one of claims 1 to 8, further comprising:

and the adsorption module is arranged on the air inlet pipeline and used for adsorbing impurities in the air entering the room.

10. An air conditioner is characterized in that the air conditioner comprises a shell,

comprising a fresh air filtration device as claimed in any of claims 1 to 9.

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