CN212006184U - Exempt from to tie from automatically cleaning filter equipment and new trend system - Google Patents

Abstract

The utility model discloses a maintenance-free self-cleaning filtering device and a fresh air system, the maintenance-free self-cleaning filtering device comprises a main channel and a pressure-increasing type dust removing mechanism, the main channel is provided with a filter screen between an air inlet and an air outlet, the pressure-increasing type dust removing mechanism comprises a dust removing channel and a dust removing fan, the dust removing channel is provided with a dust collecting port and a dust discharging port, a clapboard is arranged in the dust removing channel and divides the dust removing channel into a dust collecting cavity communicated with the dust collecting port and a dust discharging cavity communicated with the dust discharging port, the dust removing fan is positioned in the dust removing channel to form dust removing air flow from the dust collecting port to the dust discharging port in the channel, the dust removing fan is provided, a dust-absorbing pressurizing cavity with the section enlarged from the dust-absorbing opening to the air inlet opening of the fan is formed in the dust-absorbing cavity, and a dust exhaust pressurizing cavity with the section enlarged from the dust exhaust port to the air outlet of the fan is formed in the dust exhaust cavity. The new trend system can carry out self-cleaning, has guaranteed the smooth work of new trend system, has reduced the frequency and the cost of maintaining.

Description

Exempt from to tie from automatically cleaning filter equipment and new trend system

Technical Field

The utility model belongs to the technical field of the computer lab new trend technique and specifically relates to indicate a exempt from to tie up automatically cleaning filter equipment and new trend system.

Background

The research and development of the 5G technology is very hot all over the world at present, and the mainstream standardization organizations at home and abroad recognize the urgency of the development of the 5G technology at the present stage and make related 5G research and development plans. From 4G to 5G, user requirements are continuously improved, indoor and outdoor data services are greatly expanded, carrier frequency is greatly improved, the traditional macro base station is increasingly unable to cope with the indoor and outdoor data services, and in the future 5G era, a small base station inevitably becomes a mainstream on a large scale. Among the 5G key technologies, there is a technology called high-density networking, and the development purpose of the technology is to prepare for the wide-range deployment of the small base station in the future 5G era, so that the coming of the 5G era can really drive the explosive deployment of the small base station.

The fresh air equipment is used for replacing fresh air for the closed space, and is commonly applied to household rooms, public places, factories or data rooms (such as 5G base stations) and the like. The fresh air equipment needs to have the functions of refreshing outdoor air to indoor and filtering and purifying outdoor air. The communication base station has small internal area, large unit heating value and more area of 30-40 square meters. At present, the base station can be provided with a fresh air system, so that equipment in a machine room can operate in a normal temperature range, and the common fresh air system applied to the base station mainly comprises a fan, a filter and other components. The filter needs to be replaced after being applied for a period of time, and needs to be maintained and cleaned regularly by personnel. Most base stations are built in remote areas, the conditions are severe, and mobile stations are widely distributed, so that the base stations are maintained unchanged. In order to solve the above problems, the prior art has appeared a fresh air system with a self-cleaning mechanism, and the common structure is as follows: the dust collection fan is connected with a hose, and the hose sucks dust and the like accumulated on the filter (a filter screen) into the dust collection fan and then discharges the dust through another hose. However, the main disadvantages of such cleaning mechanisms are: in the dust removal process, the hose continuously reciprocates on the net surface of the filter screen, and the connection part of the hose and the dust collection fan is easy to damage after the hose is used for a certain time; in addition, in the process that the hose reciprocates along with the dust collection fan, the problems that the dust collection efficiency is reduced and even dust cannot be collected due to poor contact with the filter screen are easily caused by the problems of pipeline aging, deformation and the like. Therefore, the design of the self-cleaning mechanism of the existing fresh air system is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an exempt from to maintain a great deal of problem of automatically cleaning filter equipment and new trend system in order to solve prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a maintenance-free self-cleaning filtering device comprises a main channel formed with an air filtering cavity, wherein the main channel is provided with an air inlet and an air outlet, a filter screen is arranged between the air inlet and the air outlet of the main channel, the maintenance-free self-cleaning filtering device further comprises a pressure-increase type dust removing mechanism, the pressure-increase type dust removing mechanism comprises a dust removing channel and a dust removing fan, the dust removing channel is provided with a dust suction port and a dust discharge port, a partition plate is arranged in the dust removing channel and divides the dust removing channel into a dust suction cavity communicated with the dust suction port and a dust discharge cavity communicated with the dust discharge port, the partition plate is provided with a communication hole communicated with the dust suction cavity and the dust discharge cavity, the dust removing fan is positioned in the dust removing channel to form dust removing airflow from the dust suction port to the dust discharge port, the dust removing fan is provided with a fan inlet and a fan outlet, and a dust, and a dust exhaust pressurizing cavity with the section enlarged from the dust exhaust port to the air outlet of the fan is formed in the dust exhaust cavity.

Furthermore, the dust removal channel is provided with an outer side wall, the dust collection cavity is provided with a dust collection air guide surface, the dust collection air guide surface extends towards the air inlet of the fan of the dust removal fan from the dust collection port in an inclined mode, and the dust collection pressurizing cavity is formed between the dust collection air guide surface and the corresponding outer side wall.

Furthermore, the dust removal channel has an outer side wall, the dust exhaust cavity has a dust exhaust air guide surface, the dust exhaust air guide surface is oriented by dust exhausting fan's fan air outlet the slope of dust exhaust mouth extends, the position department of dust exhaust pressure boost chamber formation between dust exhaust air guide surface and the lateral wall that corresponds.

Furthermore, the dust removal fan is located in the dust exhaust chamber, a fan air inlet of the dust removal fan is directly communicated with the dust exhaust chamber, and a fan air outlet of the dust removal fan is directly communicated with the dust exhaust chamber.

Furthermore, the dust removal fan is a centrifugal fan, the dust suction port and the dust exhaust port are arranged at two ends of the dust removal channel, and a main shaft of the dust removal fan is perpendicular to the extension direction of the dust removal channel.

Furthermore, the dust removal fan is an axial flow fan, the dust suction port and the dust exhaust port are arranged at two ends of the dust removal channel, and a main shaft of the dust removal fan is parallel to the extension direction of the dust removal channel.

Furthermore, the clapboard is connected with a fan shell at the periphery of a fan air inlet of the dust removal fan.

Furthermore, still be provided with the mesh in the main entrance and be greater than the fly net of filter screen mesh, the one side that the filter screen faced the air intake is the windward side, and the fly net setting is at the windward side of filter screen and with filter screen looks interval, dust absorption mouth and dust exhaust mouth extend along same direction, and the length of dust absorption mouth is the same with the length of side that the filter screen corresponds the limit, and the length of dust exhaust mouth is the same with the length of side that the fly net corresponds the limit.

Furthermore, a guide mechanism is arranged on the outer side of the dust removal channel, a guide rail matched with the guide mechanism is arranged on the main channel, and the dust removal channel can reciprocate in the main channel along the guide mechanism.

A fresh air system comprises the maintenance-free self-cleaning filtering device, a fresh air cavity and a fresh air fan, wherein the fresh air cavity is communicated with an air outlet, and fresh air gas filtered by a filter screen is introduced into the fresh air cavity by the fresh air fan.

The beneficial effects of the utility model reside in that: compared with the existing fresh air system, the maintenance-free self-cleaning filtering device provided with the integrally connected dust removal channel does not need to be additionally provided with a connecting hose, integrates the dust removal fan with the dust collection port and the dust discharge port through the integral dust removal channel, has no connecting dead angle, is not easy to accumulate dust and block in the channel, is convenient to install, has high structural stability and longer service life; by arranging the supercharged dust removing mechanism, the dust collecting supercharging cavity and the dust discharging supercharging cavity are formed in the channel, and under the condition that the efficiency of the dust removing fan is equal to that of the dust collecting fan, larger dust collecting force and dust discharging force can be formed at the dust collecting port and the dust discharging port, so that the dust removing efficiency is high; the utility model divides the dust removing channel into the dust collecting chamber and the dust discharging chamber which are communicated with each other through the clapboard, which is helpful for forming negative pressure in the dust collecting chamber and is convenient for the suction and discharge of dust; the dust collection air guide surface and the dust discharge air guide surface are utilized to guide sucked dust and discharged dust along the corresponding air guide surfaces in a concentrated manner, so that the dust collection efficiency is higher, and the phenomenon of dust accumulation at the corners inside the channel is avoided; the dust removal channel capable of moving back and forth is arranged, the air filtering mechanism is self-cleaned, smooth work of a fresh air system is guaranteed, and maintenance frequency and cost are reduced.

Drawings

Fig. 1 is the structure schematic diagram of new trend system of the utility model.

Fig. 2 is an enlarged schematic structural view of a supercharged dust removal mechanism at a position a in fig. 1.

Fig. 3 is a schematic structural view of the dust removal channel.

Fig. 4 shows a cross-sectional view of the dust removal channel.

Fig. 5 is a schematic structural view showing another embodiment of the dust removal passage.

Reference numerals: 1. the dust-removing device comprises a main channel, 2, a filter screen, 3, a supercharged dust-removing mechanism, 4, a dust-absorbing air guide surface, 5, a dust-exhausting air guide surface, 6, an insect-proof net, 71, a guide mechanism, 8, a fresh air chamber, 9 a fresh air fan, 10, a dust brush, 11, an air inlet, 12, an air outlet, 21, a windward side, 31, a dust-removing channel, 32, a dust-removing fan, 311 a dust-absorbing opening, 312 a dust-exhausting opening, 33, a partition board, 313, a dust-absorbing chamber, 313 ', a dust-absorbing pressurizing cavity, 314, a dust-exhausting chamber, 314' a dust-exhausting pressurizing cavity, 315, an outer side wall, 316, a top wall, 317, a bottom wall, 321, a fan air.

Detailed Description

The utility model provides a exempt from to maintain automatically cleaning filter equipment and new trend system maintain inconveniently in order to solve the new trend system installation among the prior art, clean dynamics is not enough, dust collection efficiency is low, equipment life is low scheduling problem.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-5, for the utility model discloses exempt from to maintain a preferred embodiment of automatically cleaning filter equipment, in this embodiment, exempt from to maintain automatically cleaning filter equipment including the main entrance 1 that is formed with air filter chamber, main entrance 1 has air intake 11 and air outlet 12, main entrance 1 sets up filter screen 2 between air intake 11 and air outlet 12, exempt from to maintain automatically cleaning filter equipment still includes booster-type dust removal mechanism 3. The supercharged dust removing mechanism 3 comprises a dust removing channel 31 and a dust removing fan 32. The dust removal passage 31 has a dust suction port 311 and a dust discharge port 312, a partition plate 33 is provided in the dust removal passage 31, the partition plate 33 partitions the dust removal passage 31 into a dust suction chamber 313 communicating with the dust suction port 311 and a dust discharge chamber 314 communicating with the dust discharge port 312, and the partition plate 33 is provided with a communication hole 331 communicating the dust suction chamber 313 and the dust discharge chamber 314. The dust removing fan 32 is positioned in the dust removing channel 31 to form a dust removing air flow from the dust collecting port 311 to the dust discharging port 312, the dust removing fan 32 is provided with a fan air inlet 321 and a fan air outlet 322, a dust collecting pressurizing cavity 313 'with the section enlarged from the dust collecting port 311 to the fan air inlet 321 is formed in the dust collecting cavity 313, and a dust discharging pressurizing cavity 314' with the section enlarged from the dust discharging port 312 to the fan air outlet 322 is formed in the dust discharging cavity 314.

The dust removing fan 32 may be a centrifugal fan or an axial flow fan, and fig. 2 shows the structure of the supercharged dust removing mechanism 3 when the centrifugal fan is used as the dust removing fan. Specifically, the method comprises the following steps:

as shown in fig. 1, 2 and 3, the filter screen 2 is horizontally disposed in the main channel 1, the dust suction port 311 and the dust discharge port 312 are disposed at two ends of the dust removing channel 31, and the main shaft of the dust removing fan 32 is perpendicular to the extending direction L of the dust removing channel 31. The dust removal channel 31 is a rectangular parallelepiped (the shape of the dust removal channel is not limited in this embodiment, and may be a cube, a cylinder, a structural cone, etc.), and has an outer sidewall 315, and a top wall 316 and a bottom wall 317 covering the outer sidewall 315. The dust removing fan 32 is positioned in the dust exhaust chamber 314, a fan air inlet 321 of the dust removing fan 32 is directly communicated with the dust suction chamber 313, a fan air outlet 322 of the dust removing fan 32 is directly communicated with the dust exhaust chamber 314, and the partition plate 33 is connected with a fan shell at the periphery of the fan air inlet 321 of the dust removing fan 32. The dust suction port 311 and the dust discharge port 312 are formed at the upper and lower ends of the dust removing channel 31, specifically, the dust suction port 311 is formed at the connection position of the top wall 316 and the outer side wall 315, and extends along one side of the top wall 316; the dust discharge port 312 is formed at the connection position of the bottom wall 317 and the outer side wall 315, and the extending direction of the dust discharge port 312 is the same as the extending direction of the dust suction port 311. In this embodiment, two dust suction ports 311 are provided in parallel, and two dust discharge ports 312 are provided in parallel. Only one dust suction port 311 and one dust discharge port 312 may be provided; the number of the dust suction ports 311 and the dust discharge ports 312 is not limited to be corresponding to each other, that is, two dust suction ports 311 and one dust discharge port 312 may be provided; alternatively, one dust suction port 311 and two dust discharge ports 312 may be provided. In the present embodiment, the dust suction port 311 and the dust discharge port 312 are elongated holes, but in practical implementation, the dust suction port 311 or the dust discharge port 312 may be disposed as a plurality of dust suction holes arranged along one side of the top wall 316 or the bottom wall 317, and the arrangement is also applicable.

In the present embodiment, corresponding to the dust suction port 311: the dust collection chamber 313 has two dust collection air guide surfaces 4, the dust collection air guide surfaces 4 extend from the corresponding dust collection ports 311 towards the fan air inlet 321 of the dust removal fan 32 in an inclined manner, and the length of the dust collection air guide surfaces 4 is the same as the length of the extension of the dust collection ports 311. In the direction shown in the figure, the top of the dust collection air guide surface 4 is seamlessly connected with the top wall 316, and the bottoms of the two dust collection air guide surfaces 4 are intersected and closed. The dust-collecting air guide surface 4 preferably extends to a fan inlet 321 near the dust-removing fan 32. The dust suction plenum 313' is formed at a position between the dust suction air guide surface 4 and the corresponding outer side wall 315. The section of the dust collection pressurizing cavity 313' from the bottom of the dust collection air guide surface 4 to the top of the dust collection air guide surface 4 is gradually increased, so that a large negative pressure air flow is formed at the dust collection port 311, when the dust collection fan 32 rotates synchronously (or at the same power), a larger adsorption force can be formed at the dust collection port 311, and therefore, impurities such as dust attached to the filter screen 2 are sucked into the dust collection channel 31, and the cleaning force is stronger.

Corresponding to the dust discharge port 312: the dust exhaust chamber 314 has two dust exhaust air guide surfaces 5, the dust exhaust air guide surfaces 5 extend from a fan air outlet 322 of the dust removal fan 32 toward the dust exhaust port 312 in an inclined manner, and the dust exhaust pressurizing cavity 314' is formed at a position between the dust exhaust air guide surfaces 5 and the corresponding outer side wall 315. The upper parts of the two dust-removing air guide surfaces 5 are connected and the positions of the two dust-removing air guide surfaces correspond to the air outlet 322 of the fan, and the bottom end of each dust-removing air guide surface 5 extends to the position of the corresponding dust-removing port 312. The length of the dust exhaust and guiding surface 5 is the same as the length of the dust exhaust port 312. Similarly, the cross section of the dust exhaust pressurizing cavity 314' is gradually reduced from the top of the dust exhaust air guide surface 5 to the bottom of the dust exhaust air guide surface 5, so that a larger dust exhaust pressure difference is ensured to be formed at the dust exhaust port 312, and when the dust removal fan 32 rotates synchronously (or has the same power), a larger dust exhaust force can be formed at the dust exhaust port 312, so that the dust removal channel 31 is ensured to be smooth, and the dust exhaust port 312 is not easily blocked.

Still be provided with the mesh in the main entrance 1 and be greater than the fly net 6 of filter screen 2 mesh, the one side that filter screen 2 faced air intake 11 is the windward side 21, and fly net 6 sets up windward side 21 at filter screen 2 and with filter screen 2 looks interval to the pictorial direction of attached drawing 2 is the benchmark, fly net 6 sets up the below at filter screen 2. The dust suction opening 311 and the dust discharge opening 312 extend along the same direction, the length of the dust suction opening 311 is the same as the side length of the corresponding side of the filter screen 2, and the length of the dust discharge opening 312 is the same as the side length of the corresponding side of the insect-proof screen 6. The arrangement of the dust exhaust pressurizing cavity 314' enables the dust exhaust port 312 to form a pressurizing type dust exhaust port, so that sundries on the insect-proof net 6 can be blown off more easily while the smoothness of the dust exhaust port 312 is ensured, and the dust exhaust and dust exhaust integrated design is convenient and efficient.

In order to improve the dust collection and discharge efficiency, the dust collection ports 311 should be as close as possible to the screen surface of the corresponding filter screen 2 or in contact with the same; the dust outlet 312 should be as close as possible to the surface of the insect-proof net 6 or contact with it. In this embodiment, the dust collection opening 311 is further provided with a dust brush 10, and the dust brush 10 is fixedly arranged relative to the dust removal channel 31. Specifically, the dust removal channel 31 is provided with a mounting seat, the mounting seat forms a slot, and a brush handle of the dust sweeping brush 10 extends into the slot to be connected with the dust removal channel 31. The brush head of the dust removing brush 10 protrudes relative to the dust suction port 311 and contacts with the mesh surface of the filter mesh 2, so that dust attached to the filter mesh 2 is swept down or loosened, and dust suction is facilitated. Therefore, in this embodiment, there is a certain gap between the dust suction port 311 and the surface of the filter screen 2, and the gap is preferably smaller than 2 cm.

In this embodiment, the top wall 316 and the bottom wall 317 may be omitted, the dust-collecting air guide surface 4 is used as the top wall, and the dust-exhausting air guide surface 5 is used as the bottom wall. Furthermore, a through hole can be arranged at the joint of the two dust-absorbing air guide surfaces 4, and the through hole is directly communicated with the dust-absorbing pressurizing cavity 313' to prevent dust accumulation on the upper parts of the dust-absorbing air guide surfaces 4.

As can be seen from the above description of the preferred embodiment of the maintenance-free self-cleaning filtering device of the present invention, the pressurized dust-removing mechanism 3 is provided to separate the integrally connected dust-removing channel 31 into the dust-collecting chamber 313 and the dust-discharging chamber 314, so as to prevent the formation of vortex inside and ensure the efficient dust-removing efficiency of the pressurized dust-removing mechanism 3; dust suction ports 311 and dust discharge ports 312 are formed at two ends of the integrally communicated dust removal channel 31, so that dust suction and dust discharge are carried out without independently arranging hoses on two sides of a fan for dust suction as in the prior art, all elements of the equipment integrally and synchronously move when the equipment carries out dust removal work, the relative positions of all elements in the equipment cannot be changed, the connection parts of all elements of the supercharged dust removal mechanism 3 cannot be worn due to relative movement as in the prior art, the stability of the integral structure is high, the synchronism is strong, the service life is long, blockage cannot easily occur, and airflow is smooth; the arrangement of the dust suction pressurizing cavity 313 'and the dust exhaust pressurizing cavity 314' ensures that a larger pressure difference is formed between the dust suction port 311 and the dust exhaust port 314 under the same condition of the dust removal fan 32, and the dust suction and dust exhaust efficiency is higher and more sufficient.

The filtering device is further provided with a power unit and a guiding mechanism 71, the power output end of the power unit is connected with the outer side wall 315 of the dust removing channel 31, and specifically, the outer side wall 315 can be provided with a mounting seat or a limiting structure for mounting the power unit. The power unit can be a cylinder, a motor (such as a servo motor). The guide means 71 are arranged on an outer side wall 315 and the main channel 1 is provided with a guide rail cooperating with the guide means 71. The dust removing passage 31 can be reciprocated in the main passage 1 along the guide mechanism 71 by the power unit. The guiding mechanism 71 may be a roller, a guide groove, a guide rod, etc. as is common in the art. In this embodiment, the guiding mechanism 71 is a roller protruding from the outer sidewall 315, and the guiding rail is a guiding groove formed at a corresponding position on the inner sidewall of the main channel 1. And a position sensor and a controller can be further arranged, and the position sensor and the power unit are connected with the controller. The position sensor may be located at the power output of the power unit or at the main channel. In this embodiment, the control unit is a servo motor, and the controller receives a position signal from the position sensor to control the main shaft of the servo motor to rotate forward or backward, so as to drive the dust removal channel 31 to move back and forth.

As shown in fig. 5, another structure of the dust removing passage 31 is shown, which mainly differs from fig. 4 in that: the dust removal fan 32 is an axial flow fan. Specifically, with the direction shown in fig. 3 as a reference, the dust suction port 311 and the dust discharge port 312 are disposed at the upper and lower ends of the dust removal passage 31, the main shaft of the dust removal fan 32 is parallel to the extending direction L of the dust removal passage 31, the fan air inlet 321 is above, and the fan air outlet 322 is below. The problem of prior art can be solved equally after setting up like this, realize the technical effect of the utility model.

It should be noted that, fig. 2 and 3 both illustrate the filter screen 2 as being horizontally arranged, and in specific implementation, the filter screen 2 may be vertically arranged according to factors such as installation space and use environment, and the dust removal channel 31 is correspondingly horizontally arranged, so that the dust collection opening 311 is opposite to the filter screen 2.

The utility model also provides a new trend system, as shown in figure 1, include as above exempt from to tie up automatically cleaning filter equipment and new trend cavity 8, new trend fan 9, new trend cavity 8 and air outlet 12 intercommunication, new trend fan 9 will be through in filter screen 2 filterable new trend gas introduces new trend cavity 8. In this embodiment, the fresh air blower 9 is installed in the fresh air chamber 8. It should be noted that the fresh air blower 9 can also be installed in the main channel 1 or at the joint of the main channel 1 and the fresh air chamber 8, and the installation position thereof is not limited by the disclosure of the present invention.

The fresh air system of the utility model is provided with the maintenance-free self-cleaning filtering device, and the supercharged dust removing mechanism 3 is arranged, the dust collection supercharged cavity 313 'and the dust discharge supercharged cavity 314' are formed in the channel, and under the condition that the dust removing fan 32 has the same efficiency, larger dust collection force and dust discharge force can be formed at the dust collection port 311 and the dust discharge port 312, so that the dust removing efficiency is high; compared with the existing fresh air system, the integrally connected dust removal channel 31 is not required to be additionally provided with a connecting hose, the dust removal fan 32 is integrated with the dust collection port 311 and the dust exhaust port 312 through the integral dust removal channel 31, no connecting dead angle exists, dust is not easy to accumulate and block in the channel, the installation is convenient, the structural stability is high, and the service life is longer; the utility model divides the dust removing channel 31 into the dust collecting chamber 313 and the dust discharging chamber 314 which are communicated with each other through the clapboard 33, which is helpful for forming negative pressure in the dust collecting chamber 313 and is convenient for the suction and discharge of dust; the dust-absorbing air guide surface 4 and the dust-discharging air guide surface 5 are utilized to guide the sucked dust and the discharged dust along the corresponding air guide surfaces in a centralized way, so that the dust collection efficiency is higher, and the phenomenon of dust accumulation at the corners inside the channel is avoided; the dust removal channel 31 which moves back and forth is arranged and the air filtering mechanism is self-cleaned, so that smooth work of the fresh air system is guaranteed, and the maintenance frequency and cost are reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an exempt from to tie from automatically cleaning filter equipment, is including the main entrance that is formed with the filtration cavity, the main entrance has air intake and air outlet, the main entrance sets up filter screen, its characterized in that between air intake and air outlet: exempt from to maintain automatically cleaning filter equipment still includes booster-type dust removal mechanism, booster-type dust removal mechanism includes dust removal passageway, dust exhausting fan, and dust removal passageway has dust absorption mouth and dust exhaust mouth, sets up the baffle in the dust removal passageway, and the baffle separates into the dust absorption cavity with dust absorption mouth intercommunication with dust removal passageway to and the dust exhaust cavity with dust exhaust mouth intercommunication, the baffle sets up the intercommunicating pore that feeds through dust absorption cavity and dust exhaust cavity, dust exhausting fan is located dust removal passageway and makes the dust collection air current of formation by dust absorption mouth to dust exhaust mouth in the passageway, and dust exhausting fan has fan income wind gap and fan air outlet, form one in the dust absorption cavity and go into the dust absorption pressure boost chamber of wind gap cross-section increase by the dust absorption mouth towards the fan, form one in the dust exhaust cavity and go into the dust exhaust pressure boost chamber of.

2. The maintenance-free self-cleaning filtering device as recited in claim 1, wherein: the dust removal channel is provided with an outer side wall, the dust collection cavity is provided with a dust collection air guide surface, the dust collection air guide surface extends towards the air inlet of the fan of the dust removal fan from the dust collection port in an inclined mode, and the dust collection pressurizing cavity is formed in the position between the dust collection air guide surface and the corresponding outer side wall.

3. The maintenance-free self-cleaning filtering device as claimed in claim 1 or 2, wherein: the dust removal passageway has an lateral wall, the dust exhaust cavity has a dust exhaust air guide surface, the dust exhaust air guide surface is by dust exhausting fan's fan air outlet orientation the slope of dust exhaust mouth extends, the position department of dust exhaust pressure boost chamber formation between dust exhaust air guide surface and the lateral wall that corresponds.

4. The maintenance-free self-cleaning filtering device as recited in claim 1, wherein: the dust removal fan is located in the dust exhaust chamber, a fan air inlet of the dust removal fan is directly communicated with the dust exhaust chamber, and a fan air outlet of the dust removal fan is directly communicated with the dust exhaust chamber.

5. The maintenance-free self-cleaning filtering device as recited in claim 1, wherein: the dust removal fan is a centrifugal fan, the dust suction port and the dust exhaust port are arranged at two ends of the dust removal channel, and a main shaft of the dust removal fan is perpendicular to the extension direction of the dust removal channel.

6. The maintenance-free self-cleaning filtering device as recited in claim 1, wherein: the dust removal fan is an axial flow fan, the dust suction port and the dust exhaust port are arranged at two ends of the dust removal channel, and a main shaft of the dust removal fan is parallel to the extension direction of the dust removal channel.

7. The maintenance-free self-cleaning filtering device of claim 6, wherein: the clapboard is connected with a fan shell at the periphery of a fan air inlet of the dust removal fan.

8. The maintenance-free self-cleaning filtering device as recited in claim 1, wherein: still be provided with the mesh in the main entrance and be greater than the fly net of filter screen mesh, the one side that the filter screen faced the air intake is the windward side, and the fly net sets up the windward side at the filter screen and with filter screen looks interval, dust absorption mouth extends along same direction with the dust exhaust mouth, and the length of dust absorption mouth is the same with the length of side that the filter screen corresponds the limit, and the length of dust exhaust mouth is the same with the length of side that the fly net corresponds the limit.

9. The maintenance-free self-cleaning filtering device as recited in claim 1, wherein: the guide mechanism is arranged on the outer side of the dust removal channel, the guide rail matched with the guide mechanism is arranged on the main channel, and the dust removal channel can reciprocate in the main channel along the guide mechanism.

10. A new trend system which characterized in that: the maintenance-free self-cleaning filter device comprises the maintenance-free self-cleaning filter device as claimed in any one of claims 1 to 9, a fresh air chamber and a fresh air fan, wherein the fresh air chamber is communicated with an air outlet, and the fresh air fan introduces fresh air filtered by a filter screen into the fresh air chamber.

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