CN110932144B

CN110932144B - Take resistance noise cancelling structure from dust removal electric power cabinet

Info

Publication number: CN110932144B
Application number: CN201911389322.9A
Authority: CN
Inventors: 杨向民
Original assignee: Zhejiang Xinyu Electronic Technology Co ltd
Current assignee: Zhejiang Xinyu Electronic Technology Co.,Ltd.
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-07-06
Anticipated expiration: 2039-12-30
Also published as: CN110932144A

Abstract

The invention discloses a self-dedusting electric cabinet with a resistance silencing structure, which comprises: the electric cabinet comprises an electric cabinet body, wherein an air inlet is formed in the lower portion of one side of the electric cabinet body, an air outlet is formed in the upper portion of the rear side of the electric cabinet body, a reactive muffler is transversely installed on the upper portion of the electric cabinet body, one end of the reactive muffler is hermetically connected with the air outlet through a fan cover, the other end of the reactive muffler is hermetically connected with a speed-regulating fan through a rubber tube, a dust-collecting air box fixed to the lower portion of a section bar framework is installed on the inner wall of the air inlet; the unified planning design of the three of making an uproar and dispelling the heat, dust removal correlation is realized between will fall, uses through the cooperation of reactive muffler and speed governing fan, can effectively initiatively adjust the internal radiating state of electric power cabinet, can reduce the noise that the electric power cabinet internal spreads again, carries out the dust removal process from the source through dust absorption bellows, avoids the dust to get into the trouble of clearing up again after the electric power cabinet is internal.

Description

Take resistance noise cancelling structure from dust removal electric power cabinet

Technical Field

The invention relates to the technical field of power equipment, in particular to a self-dedusting electric power cabinet with a resistance noise elimination structure.

Background

The electric power cabinet is an electric power facility for distributing electric power, has wide application, is mainly used in chemical industry, environmental protection industry, electric power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, traffic industry and the like, can generate a large amount of heat when electric power equipment operates, needs to be discharged out of a cabinet body in time, otherwise, heat is accumulated, the electric power equipment is easy to age, and the normal work of electric elements in the electric power cabinet is easy to influence. In the process of heat dissipation of the electric power cabinet, external dust can enter the electric power cabinet through the heat dissipation holes and is attached to the surface of the electric power cabinet, and dust deposition and dust accumulation are caused if the dust cannot be cleared away in time. The electric power cabinet can send certain noise at the course of the work, and the harm of noise to the human body is systemic, and in order to prevent noise pollution, the electric power cabinet just needs to have noise shield assembly, but the electric power cabinet that provides on the market at present does not reach the standard of noise shielding in the aspect of the noise shielding, and the function is also more single moreover.

The utility model provides a inhale sound insulation formula bilayer structure's low pressure electric power cabinet (CN 201720505981.4) includes the electric power cabinet body, insulating inlayer pad and toughened glass board, and the electric power cabinet door is installed to electric power cabinet body front end, and it has insulating inlayer pad to bond on the electric power cabinet door inner wall, and toughened glass board side embedding is on the closure strip is connected to the angle type, and toughened glass board, insulating inlayer pad and angle type enclose into between the closure strip and inhale the sound cavity, inhale the sound cotton of inhaling the intussuseption of sound cavity for reach the effect of inhaling the sound and making an uproar. The utility model provides an electric power cabinet (CN 201820574512.2) with noise shield assembly includes sound insulation cabinet, the main cabinet body, intelligent control ware, installation backplate, and sound insulation cabinet one side is provided with the whistle box, and the sound insulation cabinet includes first puigging and second puigging for give sound insulation. The utility model provides an electric power cabinet (CN 201811351168.1) with remove dust and heat dissipation function includes the electric power cabinet body, and open the inside left and right sides of electric power cabinet body has two heat dissipation round holes, is equipped with heat dissipation cover device on the heat dissipation round hole, and heat dissipation cover device can effectually prevent that outside dust from getting into the inside of electric power cabinet body, and the inside top of electric power cabinet body is equipped with dust removal mechanism, and the outside top of electric power cabinet body is equipped with dust storage device. The utility model provides a dust type electric power cabinet (CN 201920495505.8) is including installing the electric power cabinet main part in the protection cabinet, protection cabinet upper end fixedly connected with dust removal case, induction pipe and contact tube are installed respectively to the protection cabinet left and right sides inner wall, induction pipe and contact tube all pass the protection cabinet and are linked together with the dust removal case, induction pipe inner wall electric connection has the air-blower, fixedly connected with dust removal piece between the inner wall around the dust removal case, the through-hole that has a plurality of evenly distributed is dug to dust removal piece outer end, through-hole inner wall joint has the filter screen, protection cabinet left side inner wall fixedly connected with dispersion case, dispersion case is linked together with the induction pipe, dispersion case right-hand member is dug there are a plurality of evenly distributed's scattered gas pocket, the realization carries out timely. The utility model provides an automatic dust removal electric power cabinet (CN201520317049. X) includes electric power cabinet and heat dissipation window, and driven shaft and driving shaft are installed respectively to the inner chamber left and right sides of electric power cabinet, and driven shaft and driving shaft pass through the gauze and connect, and the fixed plate is installed to the left and right sides of electric power cabinet, and all installs the brush on the fixed plate, through heat dissipation window installation gauze, prevents the entering of dust, and the dust is too much on the gauze, clears up the dust on the gauze under the effect of brush.

In the prior art, the noise reduction and dust removal of the electric power cabinet have the following defects: 1. noise reduction, heat dissipation and dust removal are often separated, actually, a main element emitting noise in the electric power cabinet is a heat dissipation fan, passive heat dissipation and active heat dissipation effects are positively correlated with fan noise, and dust deposition and dust accumulation can cause adverse effects on heat dissipation of the electric power cabinet, and the three components are correlated with each other; 2. the cooling fan and the air outlet part are the most main noise sources, the key noise reduction is not carried out on the two parts, dust enters the electric power cabinet and is mainly separated through the air inlet, and the dust cannot be quickly and efficiently separated through a common brush or a filtering mode.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

The invention also aims to provide a self-dedusting electric power cabinet with a reactive noise elimination structure, which realizes unified planning design among noise reduction, heat dissipation and dedusting, can effectively and actively adjust the heat dissipation state in the electric power cabinet body and reduce the noise transmitted from the electric power cabinet body by matching the reactive noise eliminator and the speed regulation fan, and can avoid the trouble of cleaning dust after entering the electric power cabinet body by performing a dust removal process from the source through a dust collection air box so as to solve the problems in the background art.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a self-dedusting electric power cabinet with a resistant silencing structure, the technical solution is as follows:

the electric cabinet body is a combined structure of a profile frame and a sheet metal part, the framework of the electric cabinet body is a profile framework which is fixedly connected by an aluminum profile through an angle structural part, a sheet metal panel is fixed on the outer surface of a peripheral section bar framework of the electric cabinet body, an observation window is arranged on the upper part of the front side of the electric cabinet body, an air inlet is arranged at the lower part of one side of the electric cabinet body, an air outlet is arranged at the upper part of the rear side of the electric cabinet body, a reactive muffler is transversely arranged at the upper part of the electric cabinet body, one end of the reactive muffler is hermetically connected with the air outlet through a fan cover, the other end of the reactive muffler is hermetically connected with a speed regulating fan through a rubber pipe, the speed regulating fan is fixedly arranged on the section bar framework, the inner wall of the air inlet is provided with a dust collection air box fixed at the lower part of the profile framework, and a dust collection roller is rotatably arranged in the dust collection air box through a rotating shaft;

the reactive muffler comprises the basic acoustic structure of: the damping device comprises a uniform-section pipeline unit, a sudden-change-section pipeline unit, a bypass pipeline unit, a partition plate and a damping chamber formed by partitioning the partition plate, wherein a plurality of small holes are uniformly formed in the circumferential direction of the uniform-section pipeline unit in the damping chamber region in the middle of the reactive damper, and the sudden-change-section pipeline units at two ends of the reactive damper and the uniform-section pipeline units connected with rubber pipes are both non-porous pipelines with openings at two ends;

the dust collection device is characterized in that the axial direction of a dust collection roller in the dust collection bellows is perpendicular to the plane of an air inlet, the cross section of the dust collection roller is U-shaped, the opening face of the dust collection roller is opposite to the air inlet, a central rotating shaft is arranged in the middle of the dust collection roller, a plurality of fins are uniformly distributed on the periphery of the central rotating shaft, the dust collection roller is made of a porous breathable structure, an air guide hole perpendicular to the dust collection roller is formed in one side of the dust collection bellows, a box door is mounted at one end of the dust collection bellows through a hinge, and a push-pull drawer for collecting dust and cleaning.

Preferably, the bottom of the electric power cabinet body is equipped with the shock attenuation callus on the sole, air intake and air outlet are the panel beating panel punching press that corresponds the position and form, the opening direction of air intake and air outlet is all downwards, seal the packing through the waterproof glue respectively between section bar skeleton and the panel beating panel, between observation window and the electric power cabinet body.

Preferably, the proportion of the length of the pipeline unit with the variable cross section in the reactive muffler, which extends out of the partition plate, to the length of the muffling chamber is adjusted according to the actual fan model and the size of the electric power cabinet, and the adjustment principle is as follows: when the length of the extended partition board is half of the length of the anechoic chamber, the passing frequency of odd times of half wavelength can be eliminated, and when the length of the extended partition board at the other end is a quarter of the length of the anechoic chamber, the passing frequency of even times of half wavelength can be eliminated, and the anechoic quantity of the anechoic chambers connected in series by three sections is synthesized into the final anechoic quantity.

Preferably, the reactive muffler is formed by welding and assembling a metal plate and a metal pipeline.

Preferably, the fins on the dust collection air box are arranged spirally and are designed into wing shapes with thin two ends of the middle drum, air can automatically drive the dust collection roller in the dust collection air box to rotate through the fins after entering from the air inlet, dust is intercepted through the centrifugal effect and the obstructing effect of the porous air-permeable material, and the dust falls into the push-pull drawer and is cleaned through impact at regular intervals.

Preferably, the speed regulation fan adopts a speed-adjustable powerful booster pipeline fan, active large-wind-power heat dissipation is realized through speed regulation on the basis of common heat dissipation, and wind speed regulation is matched with a temperature sensor installed in the electric power cabinet.

Preferably, the number of the bypass pipeline units is two, and the two bypass pipeline units are distributed at equal intervals in space with the equal-section pipeline units connected with the rubber pipes.

The invention at least comprises the following beneficial effects:

1. the cooperation through reactive muffler and speed governing fan is used, can effectively initiatively adjust the internal radiating state of electric power cabinet, can reduce the internal noise that spreads of electric power cabinet again, carries out the dust removal process from the source through dust absorption bellows, avoids the dust to get into the trouble of clearing up again after the electric power cabinet is internal.

2. The noise elimination effect of the reactive muffler has little relation with the length and the volume, and compared with the length requirement of the common resistive muffler in the prior art and the defects of long service life, aging, reliability and high flow rate, the reactive muffler can better realize the noise elimination work in the cabinet body of the electric power cabinet;

3. the structure of the dust collection roller is improved through the structural design of the fins, air can automatically drive the dust collection roller in the dust collection air box to rotate through the fins after entering from the air inlet, dust is intercepted through the centrifugal effect and the obstructing effect of the porous air-permeable material, and the dust falls into the push-pull drawer and is cleaned through impact at regular intervals;

4. the design of unified planning is realized among the three of making an uproar and dispelling the heat, removing dust and being correlated with each other, and the active heat dissipation of speed governing fan has increased engineering practical value, falls the noise to the noise source and falls and the design of dust source dust removal is showing and is improving the dust removal effect of making an uproar.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a front side view of the present invention;

FIG. 2 is a rear side view of the present invention;

FIG. 3 is a side cut away view of the present invention;

FIG. 4 is a combined structure diagram of a speed-regulating fan and a reactive muffler;

FIG. 5 is a schematic view of the reactive muffler;

FIG. 6 is a front view of the suction bellows;

FIG. 7 is a schematic sectional view of a dust-collecting air box.

In the figure: 1. a power cabinet body; 2. a profile framework; 3. a sheet metal panel; 4. an observation window; 5. an air inlet; 6. an air outlet; 7. a reactive muffler; 8. a speed-regulating fan; 9. a dust collection bellows; 10. a dust-collecting roller; 11. a constant-section piping unit; 12. a sudden-change cross-section pipeline unit; 13. bypass branch pipeline units; 14. a partition plate; 15. an anechoic chamber; 16. a central rotating shaft; 17. a fin; 18. a wind guide hole; 19. a box door; 20. pushing and pulling the drawer; 21. shock attenuation callus on sole.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

According to the drawings of fig. 1-7, the invention provides a self-dedusting electric power cabinet with a resistance noise elimination structure, and the technical scheme is as follows:

the electric cabinet body 1 is a combined structure of a section frame and a sheet metal part, the framework of the electric cabinet body 1 is a section frame 2 formed by connecting and fixing aluminum sections through an angle structural part, the section frame 2 can increase the integral strength and rigidity of the electric cabinet body 1, the service life and the stability are improved, the sheet metal panel 3 is fixed on the outer surface of the peripheral section frame 2 of the electric cabinet body 1, the sheet metal panel 3 is a universal electric cabinet design material, the upper part of the front side of the electric cabinet body 1 is provided with an observation window 4, the lower part of one side of the electric cabinet body 1 is provided with an air inlet 5, the upper part of the rear side of the electric cabinet body 1 is provided with an air outlet 6, the positions of the air inlet 5 and the air outlet 6 are designed according to the heat convection principle, cold air rises under the hot air, the heat dissipation ventilation task can be better completed, and the resistance muffler 7 is transversely installed on, one end of the reactive muffler 7 is hermetically connected with the air outlet 6 through a fan cover, the other end of the reactive muffler 7 is hermetically connected with a speed-regulating fan 8 through a rubber tube, the speed-regulating fan 8 is fixedly arranged on the profile framework 2, a dust-collecting air box 9 fixed at the lower part of the profile framework 2 is arranged on the inner wall of the air inlet 5, and a dust-collecting roller 10 is rotatably arranged in the dust-collecting air box 9 through a rotating shaft;

reactive muffler 7 contains the basic acoustic structure: the constant-section pipeline unit 11, the sudden-change-section pipeline unit 12, the bypass pipeline unit 13, the partition plate 14 and the silencing chamber 15 formed by dividing the partition plate 14, wherein a plurality of small holes are uniformly formed in the circumferential direction of the constant-section pipeline unit 11 in the silencing chamber 15 area in the middle of the reactive silencer 7, and the sudden-change-section pipeline units 12 at two ends of the reactive silencer 7 and the constant-section pipeline units 11 connected by rubber pipes are both non-porous pipelines with openings at two ends;

in the prior art, a resistive muffler (a pipe internally provided with a sound absorbing material or a sound absorbing structure is generally adopted, sound energy is converted into heat energy by utilizing the friction of sound waves in the resistive muffler pipe to be radiated, the sound absorbing material comprises porous sound absorbing materials such as glass fiber yarns, foam, felt and the like), but the noise elimination effect of the resistive muffler is in positive correlation with the length of the resistive muffler, the normal ventilation and heat dissipation can be influenced by the too long resistive muffler, the resistive muffler is not suitable under the conditions of aging and high flow rate, the basic structure of the resistive muffler 7 is formed by connecting a plurality of units with different acoustic characteristics, and as a plurality of pipes and chambers with abrupt cross sections exist in the resistive muffler 7, the cross section which is suddenly expanded or contracted is reflected when the sound waves are transmitted in the pipe, one part of the sound waves is reflected back to the other part to be continuously transmitted forwards, the silencing effect is achieved by the principle.

The proportion of the length of the baffle plate 14 extending out of the pipeline unit 12 with the variable cross section in the reactive muffler 7 to the length of the muffling chamber 15 is adjusted according to the actual fan model and the size of the electric power cabinet, and the adjustment principle is as follows: when the length of the extended partition plate 14 is one-half of the length of the muffling chamber 15, the passing frequency of odd times of one-half wavelength can be eliminated, and when the length of the other end of the extended partition plate 14 is one-quarter of the length of the muffling chamber 15, the passing frequency of even times of one-half wavelength can be eliminated, the muffling quantities of the muffling chambers 15 connected in series by three sections are synthesized into the final muffling quantity, the number of the bypass pipeline units 13 is two, and the two bypass pipeline units 13 are spatially distributed at equal intervals with the uniform-section pipeline units 11 connected by rubber pipes.

The reactive muffler 7 is formed by welding, assembling and molding a metal plate and a metal pipeline, so that the service life and the reliability of the reactive muffler 7 are prolonged.

The axial direction of a dust absorption roller 10 in a dust absorption air box 9 is vertical to the plane of an air inlet 5, the section of the dust absorption roller 10 is U-shaped, the opening surface of the dust absorption roller 10 is opposite to the air inlet 5, the middle part of the dust absorption roller 10 is provided with a central rotating shaft 16, a plurality of fins 17 are uniformly distributed around the central rotating shaft 16, the material of the dust absorption roller 10 is a porous air permeable structure, one side of the dust absorption air box 9 is provided with an air guide hole 18 vertical to the dust absorption roller 10, one end of the dust absorption air box 9 is provided with a box door 19 through a hinge, the bottom of the dust absorption air box 9 is provided with a push-pull drawer 20 used for dust collection and cleaning, the fins 17 on the dust absorption air box 9 are spirally arranged, and the fins 17 are in the wing shape design of a middle drum with two thin ends, air can automatically drive the dust absorption roller 10 in the dust, regularly make the dust fall into push-and-pull drawer 20 and clearance through strikeing, carry out the dust removal process from the source, avoid the dust to get into the trouble of clearance again after the electric power cabinet body 1 is internal.

The bottom of the electric power cabinet body 1 is equipped with shock pad 21, and air intake 5 and air outlet 6 are the 3 punching presses of panel beating panel that correspond the position and form, and the opening direction of air intake 5 and air outlet 6 is all downward, seals through the waterproof glue respectively between section bar skeleton 2 and the panel beating panel 3, between observation window 4 and the electric power cabinet body 1 and fills.

The speed regulation fan 8 adopts a speed-adjustable powerful booster pipeline fan, active large-wind-power heat dissipation is realized through speed regulation on the basis of common heat dissipation, wind speed regulation is matched with a temperature sensor installed in the electric power cabinet, and a temperature sensor, a corresponding controller and other control systems need to be installed in the electric power cabinet in a matched mode to provide a speed regulation signal of the speed regulation fan 8, so that the heat dissipation effect of the electric power cabinet body 1 is improved.

Through the cooperation use of reactive muffler 7 and speed governing fan 8, can effectively initiatively adjust the radiating state in the electric power cabinet body 1, can reduce the noise that the electric power cabinet body 1 was internal spreads again, carry out the dust removal process from the source through dust absorption bellows 9, avoid the dust to get into the trouble of clearing up again after the electric power cabinet body 1 is internal. The design of unified planning is realized among the three of making an uproar and dispelling the heat, removing dust and being correlated with each other, and the initiative heat dissipation of speed governing fan 8 has increased engineering practical value, falls the noise to the noise source and falls and the design of dust source dust removal is showing and is improving the dust removal effect of making an uproar.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The utility model provides a take resistance noise cancelling structure from dust removal electric power cabinet, includes electric power cabinet body (1), its characterized in that:

the electric cabinet body (1) is a combined structure of a section frame and a sheet metal part, the framework of the electric cabinet body (1) is a section frame (2) which is fixedly connected through an angle structural part by an aluminum section, the outer surface of the peripheral section frame (2) of the electric cabinet body (1) is fixedly provided with a sheet metal panel (3), the upper part of the front side of the electric cabinet body (1) is provided with an observation window (4), the lower part of one side of the electric cabinet body (1) is provided with an air inlet (5), the upper part of the rear side of the electric cabinet body (1) is provided with an air outlet (6), the upper part of the electric cabinet body (1) is transversely provided with a reactive muffler (7), one end of the reactive muffler (7) is hermetically connected with the air outlet (6) through a fan cover, the other end of the reactive muffler (7) is hermetically connected with a speed regulating fan (8) through a rubber pipe, and the speed, a dust collection air box (9) fixed at the lower part of the profile framework (2) is installed on the inner wall of the air inlet (5), and a dust collection roller (10) is rotatably installed in the dust collection air box (9) through a rotating shaft;

the reactive muffler (7) comprises the basic acoustic structure: the damping device comprises a uniform-section pipeline unit (11), abrupt-section pipeline units (12), side-joint branch pipeline units (13), a partition plate (14) and a silencing chamber (15) formed by dividing the partition plate (14), wherein a plurality of small holes are uniformly formed in the circumferential direction of the uniform-section pipeline unit (11) in the silencing chamber (15) area in the middle of the reactive silencer (7), and the abrupt-section pipeline units (12) at the two ends of the reactive silencer (7) and the uniform-section pipeline units (11) connected by rubber pipes are both non-porous pipelines with openings at the two ends;

the dust collection device is characterized in that the axial direction of a dust collection roller (10) in a dust collection air box (9) is perpendicular to the plane of an air inlet (5), the section of the dust collection roller (10) is U-shaped, the opening face of the dust collection roller (10) is opposite to the air inlet (5), a central rotating shaft (16) is arranged in the middle of the dust collection roller (10), a plurality of fins (17) are uniformly distributed around the central rotating shaft (16), the dust collection roller (10) is made of a porous air permeable structure, an air guide hole (18) perpendicular to the dust collection roller (10) is formed in one side of the dust collection air box (9), a box door (19) is installed at one end of the dust collection air box (9) through a hinge, and a push-pull drawer (20) for collecting dust and cleaning is arranged at.

2. The self-dedusting electric cabinet with the resistant silencing structure according to claim 1, is characterized in that: the bottom of the electric power cabinet body (1) is equipped with shock attenuation callus on the sole (21), air intake (5) and air outlet (6) are the panel beating panel (3) punching press formation that corresponds the position, the opening direction of air intake (5) and air outlet (6) is all downward, seal the packing through the waterproof glue respectively between section bar skeleton (2) and the panel beating panel (3), between observation window (4) and the electric power cabinet body (1).

3. The self-dedusting electric cabinet with the resistant silencing structure according to claim 1, is characterized in that: the proportion of the length of the sudden change section pipeline unit (12) in the reactive muffler (7) extending out of the partition plate (14) to the length of the muffling chamber (15) is adjusted according to the actual fan model and the size of the electric cabinet, and the adjustment principle is as follows: when the length of the partition plate (14) extending out is half of the length of the anechoic chamber (15), the passing frequency of odd times of half wavelength can be eliminated, and when the length of the other end of the partition plate (14) extending out is a quarter of the length of the anechoic chamber (15), the passing frequency of even times of half wavelength can be eliminated, and the anechoic amount of the anechoic chamber (15) connected in series by three sections is adopted to synthesize the final anechoic amount.

4. The self-dedusting electric cabinet with the resistant silencing structure according to claim 1, is characterized in that: the reactive muffler (7) is formed by welding, assembling and molding a metal plate and a metal pipeline.

5. The self-dedusting electric cabinet with the resistant silencing structure according to claim 1, is characterized in that: the air suction device is characterized in that the fins (17) on the air suction bellows (9) are arranged spirally, the fins (17) are designed to be wing-shaped with thin two ends of a middle drum, air can automatically drive the dust suction roller (10) in the air suction bellows (9) to rotate through the fins (17) after entering from the air inlet (5), dust is intercepted through the centrifugal effect and the separation effect of porous air-permeable materials, and the dust is enabled to fall into the push-pull drawer (20) and be cleaned through impact regularly.

6. The self-dedusting electric cabinet with the resistant silencing structure according to claim 1, is characterized in that: the speed regulation fan (8) adopts a speed-adjustable powerful booster pipeline fan, active large-wind-power heat dissipation is realized through speed regulation on the basis of common heat dissipation, and wind speed regulation is matched with a temperature sensor installed in the electric power cabinet.

7. The self-dedusting electric cabinet with the resistant silencing structure according to claim 1, is characterized in that: the number of the side connecting branch pipeline units (13) is two, and the two side connecting branch pipeline units (13) are distributed at equal intervals in space with the equal-section pipeline units (11) connected with the rubber pipes.