CN218915218U

CN218915218U - Self-cleaning formula new trend mechanism

Info

Publication number: CN218915218U
Application number: CN202121156519.0U
Authority: CN
Inventors: 钟鸣; 钟庆
Original assignee: Tianyao Optoelectronics Hubei Co ltd
Current assignee: Tianyao Optoelectronics Hubei Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2023-04-25
Anticipated expiration: 2031-05-27

Abstract

The utility model provides a self-cleaning fresh air mechanism, which comprises: a ventilation hood having a first chamber with an open bottom; the fresh air fan is arranged in the first cavity; the shell is arranged on the bottom surface of the ventilation hood and is provided with a second cavity with an opening at the top, the second cavity is communicated with the first cavity, and a plurality of air inlets are formed in the shell; the filtering device is arranged between the ventilation hood and the shell; the dust collection devices are respectively positioned on the peripheral wall of the shell and are communicated with the second cavity. According to the self-cleaning fresh air mechanism disclosed by the utility model, a filter device does not need to be cleaned or replaced manually, fresh air has a cleaning function, and the manual maintenance cost is saved for a user.

Description

Self-cleaning formula new trend mechanism

Technical Field

The utility model relates to the technical field of fresh air heat dissipation, in particular to a self-cleaning fresh air mechanism.

Background

When the electric cabinet with the communication equipment works for a long time, a large amount of heat is generated, and the temperature in the cabinet is gradually increased. The fresh air system belongs to mechanical ventilation, and is used for cooling the inside of the cabinet by sucking outdoor cold air. The existing fresh air system is generally provided with a dust filtering device which is used for preventing external dust, flying insects and harmful dust from entering the cabinet, but the dust filtering device is easy to be blocked by the dust and flying insects in the air in the long-time use process, the dust filtering device needs to be cleaned or replaced every few days, the manual maintenance cost is high, and if the dust filtering device is not cleaned or replaced in time, the dust filtering device can be gradually blocked along with the accumulation of the use time, so that ventilation capacity is reduced, and normal operation of internal communication equipment is influenced.

Disclosure of Invention

In view of the above, the utility model provides a self-cleaning fresh air mechanism to overcome the defect that a fresh air system in the prior art needs to be manually cleaned or consumable materials replaced frequently.

The technical scheme of the utility model is realized as follows:

the utility model provides a self-cleaning fresh air mechanism, which comprises:

a ventilation hood having a first chamber with an open bottom;

the fresh air fan is arranged in the first cavity;

the shell is arranged on the bottom surface of the ventilation hood and is provided with a second cavity with an opening at the top, the second cavity is communicated with the first cavity, and a plurality of air inlets are formed in the shell;

the filtering device is arranged between the ventilation hood and the shell;

the dust collection devices are respectively positioned on the peripheral wall of the shell and are communicated with the second cavity.

On the basis of the technical scheme, preferably, the centrifugal machine is vertically arranged in the first cavity, and a plurality of ventilation holes are respectively formed in the peripheral wall of the ventilation hood.

On the basis of the technical scheme, preferably, the filtering device comprises fine filtering cotton and coarse filtering cotton which are arranged in a vertically stacked mode.

On the basis of the technical scheme, preferably, the dust collection device comprises a dust collection fan and a volute, the dust collection fan is arranged on the outer side wall of the shell, the volute is fixedly arranged in the second cavity and connected with the dust collection fan, an air suction opening and an air outlet which are mutually communicated are formed in the volute, the air suction opening is communicated with the second cavity, and the air outlet is connected with the air inlet.

Still further, preferably, the plurality of air inlets are all arranged at the bottom of the shell, and the number of the air inlets is equal to the number of the dust collection devices.

Further, preferably, the dust collection devices are oppositely arranged at two sides of the shell.

Further, preferably, a wind pressure sensor is disposed in the second chamber.

Compared with the prior art, the utility model has the following beneficial effects:

(1) When the self-cleaning fresh air mechanism disclosed by the utility model does not perform a cleaning function, the dust collection device does not work, external air is sucked into the second chamber through the air inlet on the shell by starting the fresh air fan, filtered by the filtering device to reach the first chamber, and clean air is dispersed from the ventilation hood by the fresh air fan, so that the cooling effect in the electric cabinet is achieved. When the filter device is blocked after long-time use, the fresh air fan is stopped, and the dust collection device is started, so that dust and flying insects adsorbed in the filter device can be discharged from the air inlet by strong wind power, and the dust collection effect is achieved. According to the self-cleaning fresh air mechanism disclosed by the utility model, a filter device is not required to be cleaned or replaced manually, fresh air has a cleaning function, and the manual maintenance cost is saved for a user;

(2) The fresh air fan is vertically arranged in the first cavity, so that the filtered gas of the fresh air fan can be sucked from the center and sprayed out to the periphery, and the peripheral wall of the ventilation hood is respectively provided with a plurality of ventilation holes, so that the air outlet area can be increased, and the heat dissipation efficiency can be improved;

(3) Through arranging the fine filter cotton and the coarse filter cotton up and down, large-particle dust and winged insects can be adsorbed on the coarse filter cotton, so that the dust suction device can be conveniently and rapidly discharged during cleaning, and meanwhile, the air entering the first cavity can be cleaner through layered filtration;

(4) Through the combination of the dust collection fan and the volute, air flow can be sucked from the second chamber, enters the volute through the air suction port, and dust and flying insects on the filter device are discharged through the air inlet by utilizing the air flow; by means of the use of the volute, when fresh air is radiated, air outside the housing enters the volute through the air inlet, enters the second chamber through the air suction inlet of the volute, passes through the filtering device and enters the first chamber, and then is radiated out of the ventilation hood, so that the volute can be used as an air channel to perform air inlet and dust exhaust, and the whole fresh air structure is light in size;

(5) The dust collection devices are oppositely arranged at two sides of the shell, so that when the dust collection devices suck the spiral case, the air suction inlets on the spiral case are oppositely arranged, and the second cavity can be simultaneously sucked left and right, so that the filtering device can uniformly elastically deform, and dust and flying insects are efficiently sucked out of the shell by utilizing the elastic deformation of the filtering device;

(6) Through setting up wind pressure sensor in the second cavity, can judge whether filter equipment blocks up according to the interior air flow atmospheric pressure of second cavity to automatic opening dust extraction, and then avoid manual operation.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a three-dimensional structure of a self-cleaning fresh air mechanism disclosed by the utility model;

FIG. 2 is an exploded schematic view of the self-cleaning fresh air mechanism of the present disclosure;

FIG. 3 is a schematic view of the structure of the dust collector and the housing of the present utility model;

FIG. 4 is a schematic plan view of a self-cleaning fresh air mechanism according to the present disclosure;

the attached drawings are identified:

1. a ventilation hood; 2. fresh air blower; 3. a housing; 4. a filtering device; 5. a dust collection device; 11. a first chamber; 12. a vent hole; 31. a second chamber; 32. an air inlet; 41. fine filter cotton; 42. coarse filtering cotton; 51. a dust collection fan; 52. a volute; 521. an air suction port; 522. an air outlet; 6. a wind pressure sensor.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1, in combination with fig. 2-4, the embodiment of the utility model discloses a self-cleaning fresh air mechanism which is installed in an electric cabinet and is used for carrying out common heat dissipation on the electric cabinet. Comprises a ventilation hood 1, a fresh air fan 2, a shell 3, a filtering device 4 and a dust collection device 5.

Wherein the ventilation hood 1 has a first chamber 11 with an opening at the bottom, in this embodiment, the ventilation hood 1 has a square structure. The ventilation hood 1 is used for dispersing air filtered in the first chamber 11 to dissipate heat of the electric cabinet.

The fresh air fan 2 is arranged in the first chamber 11 and is used as a suction power source. In this embodiment, the fresh air fan is a centrifugal fan or an axial flow fan.

The shell 3 is arranged on the bottom surface of the ventilation hood 1, the shell 3 is provided with a second cavity 31 with an opening at the top, the second cavity 31 is communicated with the first cavity 11, and a plurality of air inlets 32 are formed in the shell 3; when the fresh air fan 2 works, cold air outside the shell 3 is sucked into the second chamber 31 through the air inlet 32 and then enters the first chamber 11, and then is dispersed from the ventilation hood 1.

The filter device 4 is provided between the ventilation hood 1 and the housing 3, and is configured to adsorb and filter dust, flying insects, and other fine dust particles entering the second chamber 31.

The dust collection devices 5 are arranged in a plurality, are respectively positioned on the peripheral wall of the shell 3 and are communicated with the second chamber 31.

By adopting the technical scheme, when the self-cleaning fresh air mechanism disclosed by the utility model does not perform a cleaning function, the dust collection device 5 does not work, external air is sucked into the second chamber 31 through the air inlet 32 on the shell 3 by starting the fresh air fan 2, filtered by the filtering device 4 to reach the first chamber 11, and clean air is dispersed from the ventilation hood 1 by the fresh air fan 2, so that the cooling effect in the electric cabinet is achieved. When the filter device 4 is blocked for a long time, the fresh air fan 2 stops working, and the dust and flying insects adsorbed in the filter device 4 can be discharged from the air inlet 32 by strong wind power through starting the dust suction device 5, so that the dust removal effect is achieved. The self-cleaning fresh air mechanism disclosed by the utility model does not need to manually clean or replace the filtering device 4, and fresh air has a cleaning function, so that the manual maintenance cost is saved for users.

As some embodiments, the fresh air fan 2 is vertically disposed in the first chamber 11, and can suck the air filtered by the fresh air fan 2 from the center and spray the air to the periphery, and the peripheral wall of the ventilation hood 1 is provided with a plurality of ventilation holes 12, preferably, the ventilation holes 12 are honeycomb meshes, so that the ventilation holes 12 on the ventilation hood 1 are more sparse, the air outlet area is increased, and the heat dissipation efficiency is improved.

As some preferred embodiments, the filter device 4 includes fine filter cotton 41 and coarse filter cotton 42 stacked one on top of the other. The coarse filter cotton 42 can enable large-particle dust and winged insects to be adsorbed on the coarse filter cotton 42, so that the dust collection device 5 can conveniently and rapidly discharge the large-particle dust and winged insects during cleaning, the fine filter cotton 41 can filter fine particles in air, and meanwhile, the layered filtration can enable the air entering the first chamber 11 to be cleaner; in addition, the fine filter cotton 41 and the coarse filter cotton 42 are made of elastic materials, and when the dust suction fan 51 sucks, the fine filter cotton 41 and the coarse filter cotton 42 are recessed toward the second chamber 31, and dust and flying insects on the fine filter cotton and the coarse filter cotton are cleaned by utilizing the elastic deformation of the fine filter cotton and the coarse filter cotton.

When the fresh air fan 2 works, the filter device 4 is recessed toward the first chamber 11, and the dust removal effect is also increased due to the back and forth swinging motion of the filter device 4.

As some embodiments, the dust collection device 5 includes a dust collection fan 51 and a volute 52, the dust collection fan 51 is installed on the outer side wall of the housing 3, and the volute 52 is fixedly disposed in the second chamber 31 and connected with the dust collection fan 51; the scroll casing 52 is provided with an air intake 521 and an air outlet 522 which are mutually communicated, the air intake 521 is communicated with the second chamber 31, and the air outlet 522 is connected with the air intake 32. By adopting the structure, through the combination of the dust collection fan 51 and the volute 52, air flow can be sucked from the second chamber 31, enters the volute 52 through the air suction port 521, and dust and flying insects on the filter device 4 are discharged through the air inlet 32 by utilizing the air flow; by means of the use of the volute 52, when fresh air is radiated, air outside the housing 3 enters the volute 52 through the air inlet 32, then enters the second chamber 31 through the air suction inlet 521 of the volute 52, enters the first chamber 11 through the filtering device 4, and then is radiated from the ventilation hood 1, so that the volute can be used as an air channel to perform air inlet and dust exhaust, and the whole fresh air structure is light in size.

In this embodiment, the air inlets 32 are all disposed at the bottom of the housing 3, and the number of the air inlets 32 is equal to the number of the dust collection devices 5. From this setting, can install new trend mechanism in the electric cabinet after, the bottom surface of casing 3 contacts with the electric cabinet bottom surface, and the hole that corresponds with air intake 32 position can be seted up to the electric cabinet bottom surface simultaneously, avoids setting up on casing 3 lateral wall after, inconvenient and electric cabinet lateral wall is connected. Therefore, after the fresh air mechanism is arranged in the electric cabinet, the cold air outside the electric cabinet can be sucked into the shell 3 on the basis of reasonably utilizing the space.

In this embodiment, several dust suction devices 5 are oppositely disposed at two sides of the housing 3. When the dust suction device 5 sucks the volute 52, the air suction ports 521 on the volute 52 are arranged oppositely, and the inside of the second chamber 31 can be sucked left and right at the same time, so that the filter device 4 can be uniformly elastically deformed, and dust and flying insects can be efficiently sucked out and discharged out of the housing 3 by utilizing the elastic deformation of the filter device 4.

Preferably, the second chamber 31 is provided with a wind pressure sensor 6. With this arrangement, it is possible to determine whether the filter device 4 is clogged or not based on the air pressure flowing in the second chamber 31, thereby automatically turning on the dust suction device 5, and thus, avoiding manual operation. It should be noted that, the wind pressure sensor 6 is connected with the dust collection fan 51 through the PLC controller, the air pressure threshold value in the second chamber 31 is preset through the PLC controller, when the air pressure sensor 6 obtains that the air pressure in the second chamber 31 is greater than the preset threshold value, the blocking of the filtering device 4 is illustrated, the PLC controller can control the fresh air fan 2 to stop working, and meanwhile, the dust collection fan 51 is started to work. When the air pressure sensor 6 obtains that the air pressure in the second chamber 31 is smaller than the preset threshold value, the PLC controller controls the dust collection fan 51 to stop working, and simultaneously controls the fresh air fan 2 to continue working, so that the normal ventilation and heat dissipation of the electric cabinet are ensured. And it should be understood by those skilled in the art that the PLC control of the dust suction fan 51 is used in the prior art, and no improvement of the computer program is involved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A self-cleaning fresh air mechanism, which is characterized by comprising:

a ventilation hood (1) having a first chamber (11) with an open bottom;

the fresh air fan (2) is arranged in the first chamber (11);

the shell (3) is arranged on the bottom surface of the ventilation hood (1), the shell (3) is provided with a second cavity (31) with an opening at the top, the second cavity (31) is communicated with the first cavity (11), and a plurality of air inlets (32) are formed in the shell (3);

a filter device (4) arranged between the ventilation hood (1) and the shell (3);

the dust collection devices (5) are respectively arranged on the peripheral walls of the shells (3) and are communicated with the second chambers (31).

2. The self-cleaning fresh air mechanism of claim 1, wherein: the fresh air fan (2) is vertically arranged in the first cavity (11), and a plurality of ventilation holes (12) are respectively formed in the peripheral wall of the ventilation hood (1).

3. The self-cleaning fresh air mechanism of claim 1, wherein: the filter device (4) comprises fine filter cotton (41) and coarse filter cotton (42) which are arranged in a vertically stacked mode.

4. The self-cleaning fresh air mechanism of claim 1, wherein: the dust collection device (5) comprises a dust collection fan (51) and a volute (52), the dust collection fan (51) is arranged on the outer side wall of the shell (3), and the volute (52) is fixedly arranged in the second cavity (31) and is connected with the dust collection fan (51); the volute (52) is provided with an air suction opening (521) and an air exhaust opening (522) which are mutually communicated, the air suction opening (521) is communicated with the second chamber (31), and the air exhaust opening (522) is connected with the air inlet (32).

5. The self-cleaning fresh air mechanism of claim 4, wherein: the air inlets (32) are all arranged at the bottom of the shell (3), and the number of the air inlets (32) is equal to that of the dust collection devices (5).

6. The self-cleaning fresh air mechanism of claim 5, wherein: the dust collection devices (5) are oppositely arranged at two sides of the shell (3).

7. The self-cleaning fresh air mechanism of claim 1, wherein: a wind pressure sensor (6) is arranged in the second chamber (31).