CN215870436U

CN215870436U - Noise reduction device for power distribution cabinet

Info

Publication number: CN215870436U
Application number: CN202122000419.5U
Authority: CN
Inventors: 贾志鹏
Original assignee: Yunnan Hejiaxing Electrical Equipment Co ltd
Current assignee: Yunnan Hejiaxing Electrical Equipment Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-18
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a noise reduction and silencing device for a power distribution cabinet, which relates to the technical field of power distribution cabinets and comprises a power distribution cabinet main body, wherein the power distribution cabinet main body comprises a cabinet body, a cabinet door matched with the cabinet body is arranged on the front side of the cabinet body, a vent hole is arranged at the upper end of the right side wall of the cabinet body, a ventilation pipeline is communicated with the right side of the vent hole, a heat dissipation fan is arranged in the inner cavity of the ventilation pipeline, three groups of supporting seats are fixed on the inner side wall of the cabinet body from top to bottom, two supporting seats are arranged symmetrically and respectively fixed at the left end and the right end of the inner side wall of the cabinet body, a supporting plate is arranged between the left supporting seat and the right supporting seat, and a related power distributor is arranged on the supporting plate. The device has more practical value and application prospect.

Description

Noise reduction device for power distribution cabinet

Technical Field

The utility model relates to the technical field of power distribution cabinets, in particular to a noise reduction and silencing device for a power distribution cabinet.

Background

With the development of the society, the application of power distribution cabinets is more and more extensive, power distribution cabinets in power plants and transformer stations become important power equipment, the power distribution cabinets are separated from power distribution cabinets, lighting power distribution cabinets and metering cabinets, the power distribution cabinets are final-stage equipment of a power distribution system, the power distribution cabinets are general names of motor control centers, and the power distribution cabinets distribute electric energy of a certain circuit of upper-stage power distribution equipment to nearby loads to protect, monitor and control the loads.

But current switch board can produce the noise at the operation in-process, including the produced noise of the produced during operation of relevant distributor and arouse the produced low frequency noise of inside vibrations, seriously influence people's normal life and psychological state, for this reason, we propose the silencing device that makes an uproar falls in switch board.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a noise reduction and silencing device for a power distribution cabinet, which can effectively solve the problems in the background technology.

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

the utility model provides a silencing device that makes an uproar falls in switch board, includes the switch board main part, the switch board main part includes the cabinet body, anti-skidding landing leg is installed to the bottom of the cabinet body, the cabinet door rather than the looks adaptation is installed in the front of the cabinet body, the right side wall upper end of the cabinet body is equipped with the vent, the right side intercommunication of vent has air pipe, air pipe fixes on the right side outer wall of the cabinet body, heat dissipation fan is installed to air pipe's inner chamber, air pipe's mouth of pipe department disposes the dustproof screen panel, the inside wall from the top down of the cabinet body is fixed with three groups of supporting seats and every group supporting seat and is equipped with two, two the supporting seat is bilateral symmetry setting and fixes respectively at the both ends about on the internal side wall of cabinet, controls two be equipped with a backup pad between the supporting seat, install relevant distributor in the backup pad.

Preferably, a micropore sound-absorbing plate is fixed on the back of the supporting plate in the inner cavity of the cabinet body.

Preferably, the both ends of backup pad are equipped with the connection end, be equipped with the through-hole on the connection end, be equipped with the draw-in groove with connection end looks adaptation on the supporting seat, the bottom of draw-in groove is fixed with the connecting rod, the upper end surface of connecting rod is equipped with the thread tooth's socket, the connecting rod runs through-hole threaded connection and has fastening nut, sliding connection has the butt plate on the connecting rod, be connected with buffer spring between the bottom of butt plate's bottom and the bottom of draw-in groove, the up end of butt plate bonds and has rubber cushion.

Preferably, the ventilation duct comprises a circular outer shell, and an inner core of the circular outer shell is provided with a vacuum cavity.

Preferably, air pipe's inboard is close to dust screen panel department joint and has the abatvoix, the surface of abatvoix is equipped with a plurality of ventilation holes that are the distribution of annular array, the inboard in ventilation hole all is equipped with two curved surfaces and inhales sound cotton net and a plane and inhale the sound cotton net, the plane is inhaled the sound cotton net and is located two curved surfaces and inhale in the middle of the sound cotton net.

Preferably, both sides of the vent hole are arc-shaped curved surfaces.

Preferably, the cabinet body comprises a magnesium-aluminum alloy metal outer shell, a honeycomb plate and a stainless steel metal inner shell, and sound-absorbing cotton is placed in honeycomb holes in the honeycomb plate.

Preferably, the outer surface of the magnesium-aluminum alloy outer shell and the front surface of the cabinet door are coated with antirust paint, and the surface of the stainless steel inner shell and the back surface of the cabinet door are coated with sound-absorbing antistatic emulsion paint.

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

1. the connecting end of the supporting plate is conveniently clamped through the clamping groove formed in the supporting seat, so that the assembly of the supporting plate between the two supporting seats is realized, the buffer spring connected between the bottom of the abutting plate in sliding connection on the connecting rod and the bottom of the inner side of the clamping groove has a good buffering and damping effect, and low-frequency noise generated by vibration during the operation of the distributor is greatly reduced;

2. the sound-absorbing cotton nets are arranged on the two curved surface sound-absorbing cotton nets and the two flat surface sound-absorbing cotton nets are arranged in the ventilation holes, and the flat surface sound-absorbing cotton nets are located between the two curved surface sound-absorbing cotton nets, so that sound in the ventilation pipeline can be diffused and scattered through the curved surface sound-absorbing cotton nets and can be continuously absorbed through the flat surface sound-absorbing cotton nets, and the noise reduction and silencing functions are achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view showing the overall structure of the ventilation duct of the present invention;

FIG. 3 is a schematic view of the overall structure of the support base of the present invention;

fig. 4 is an enlarged view of the structure of fig. 1 at a.

In the figure: 1. a power distribution cabinet main body; 101. a cabinet body; 102. anti-skid support legs; 103. a cabinet door; 104. making a magnesium-aluminum alloy metal shell; 105. a honeycomb panel; 106. a stainless steel inner metal shell; 2. a ventilation duct; 201. a dust-proof net cover; 202. a circular outer housing; 203. a vacuum chamber; 3. a supporting seat; 301. a card slot; 302. a connecting rod; 303. a butt joint plate; 304. a buffer spring; 305. a rubber cushion; 4. a support plate; 401. connecting the end heads; 5. a microporous sound-absorbing plate; 6. a heat dissipation fan; 7. a sound filtering plate; 701. a vent hole; 702. a curved sound-absorbing cotton net; 703. planar sound-absorbing cotton net.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Please refer to fig. 1, a noise abatement device of making an uproar falls in switch board, including switch board main part 1, switch board main part 1 includes cabinet body 101, anti-skidding landing leg 102 is installed to the bottom of cabinet body 101, cabinet door 103 rather than looks adaptation is installed in the front of cabinet body 101, right side wall upper end of cabinet body 101 is equipped with the vent, the right side intercommunication of vent has ventilation pipe 2, ventilation pipe 2 is fixed on the right side outer wall of cabinet body 101, heat dissipation fan 6 is installed to ventilation pipe 2's inner chamber, ventilation pipe 2's mouth of pipe department disposes dustproof mesh enclosure 201, the inside wall from the top down of cabinet body 101 is fixed with three groups of supporting seats 3 and every group supporting seat 3 is equipped with two, two supporting seats 3 are bilateral symmetry and set up and fix the both ends about on cabinet body 101 inside wall respectively, be equipped with a backup pad 4 between two supporting seats 3 about, install relevant distributor in backup pad 4.

Referring to fig. 1, a microporous sound-absorbing plate 5 is fixed on the back of the supporting plate 4 in the inner cavity of the cabinet 101, and can directly perform sound-absorbing and noise-reducing processing on the noise generated by the related power distributor installed on the supporting plate 4.

Please refer to fig. 1 and 3, two ends of the supporting plate 4 are provided with connecting ends 401, a through hole is arranged on the connecting end 401, a clamping groove 301 matched with the connecting end 401 is arranged on the supporting seat 3, a connecting rod 302 is fixed at the bottom of the clamping groove 301, a thread tooth groove is arranged on the upper end surface of the connecting rod 302, the connecting rod 302 is in threaded connection with a fastening nut through the through hole, a butting plate 303 is slidably connected on the connecting rod 302, a buffer spring 304 is connected between the bottom of the butting plate 303 and the bottom of the clamping groove 301, a rubber cushion 305 is bonded on the upper end surface of the butting plate 303, and low-frequency noise generated by vibration during the operation of the power distributor can be greatly reduced.

Referring to fig. 1 and 2, the ventilation duct 2 includes a circular outer casing 202, and a vacuum cavity 203 is disposed in an inner core of the circular outer casing 202, so that the ventilation duct 2 has a good sound insulation effect.

Please refer to fig. 2, the inner side of the ventilation duct 2 near the dust screen 201 is connected with the sound filtering plate 7 in a clamping manner, the surface of the sound filtering plate 7 is provided with a plurality of ventilation holes 701 distributed in an annular array manner, the inner side of the ventilation holes 701 is provided with two curved surface sound-absorbing cotton nets 702 and a plane sound-absorbing cotton net 703, the plane sound-absorbing cotton net 703 is located between the two curved surface sound-absorbing cotton nets 702, so that the noise generated by the operation of the heat dissipation fan 6 and the inside of the power distribution cabinet main body 1 can be effectively eliminated through the sound filtering plate 7, and the functions of noise reduction and noise reduction are achieved.

Referring to fig. 2, the two sides of the ventilation hole 701 are curved to reduce the impact of the airflow on the sound-filtering plate 7 caused by the operation of the heat-dissipating fan 6, and to avoid the generation of noise.

Referring to fig. 4, the cabinet 101 includes an outer metal shell 104 made of magnesium-aluminum alloy, a cellular board 105 and an inner metal shell 106 made of stainless steel, and sound-absorbing cotton is placed in cellular holes of the cellular board 105, so that the cabinet 101 has good structural strength and sound-insulating effect.

Referring to fig. 1 and 4, the outer surface of the metal outer shell 104 made of magnesium-aluminum alloy and the front surface of the cabinet door 103 are coated with the rust-proof paint, and the surface of the stainless steel inner shell 106 and the back surface of the cabinet door 103 are coated with the sound-absorbing antistatic emulsion paint, so that the cabinet body 101 is protected, and the sound-absorbing and sound-insulating effects of the cabinet body 101 are further improved.

It should be noted that, the utility model is a noise reduction and silencing device for a power distribution cabinet, when in use, the relevant power distributor used is installed on a support plate 4, two ends of the support plate 4 are connecting ends 401, the connecting ends 401 are clamped in clamping grooves 301 matched with the support seat 3 on the support seat, a connecting rod 302 arranged in the clamping grooves 301 penetrates through a through hole, and a fastening nut is connected to the upper end of the connecting rod 302, thereby realizing the installation of the support seat 3 on the support plate 4, because one side surface of the connecting end 401 is abutted to an abutting plate 303, the abutting plate 303 can slide on the connecting rod 302 and a buffer spring 304 is connected between the bottom of the abutting plate 302 and the bottom of the clamping grooves 301, thereby greatly reducing the low-frequency noise generated by vibration when the power distributor runs, the provided ventilation duct 2 comprises a circular outer shell 202, the inner core of the circular outer shell 202 is provided with a vacuum cavity 203, so that the ventilation duct 2 has good sound insulation effect, the inner side of the ventilation pipeline 2 is clamped with a sound filtering board 7, the surface of the sound filtering board 7 is provided with a plurality of ventilation holes 701 distributed in an annular array, the inner sides of the ventilation holes 701 are respectively provided with two curved surface sound-absorbing cotton nets 702 and a planar sound-absorbing cotton net 703, the planar sound-absorbing cotton net 703 is positioned between the two curved surface sound-absorbing cotton nets 702, so that sound in the ventilation pipeline 2 can be diffused and scattered through the curved surface sound-absorbing cotton nets 702 and can be continuously absorbed through the planar sound-absorbing cotton nets 703, thereby achieving the functions of noise reduction and noise reduction, the two sides of the ventilation holes 701 are arc-shaped curved surfaces, reducing the impact of air flow caused by the operation of a heat dissipation fan 6 on the sound filtering board 7 and simultaneously reducing the generation of noise, the set cabinet body 101 comprises a magnesium-aluminum alloy metal outer shell 104, a honeycomb plate 105 and a stainless steel metal inner shell 106, sound-absorbing cotton is placed in honeycomb holes on the honeycomb plate 105, so that the cabinet body 101 has good structural strength and sound insulation effect, the outer surface of the metal outer shell 104 made of magnesium-aluminum alloy and the front surface of the cabinet door 103 are both coated with antirust paint, so that the cabinet body 101 has good outer layer protection, and the surface of the stainless steel metal inner shell 106 and the back surface of the cabinet door 103 are both coated with sound-absorbing antistatic emulsion paint, so that the sound-absorbing and sound-insulating effects of the cabinet body 101 can be further improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a silencing device of making an uproar falls in switch board, includes switch board main part (1), its characterized in that: the power distribution cabinet comprises a cabinet body (101), anti-skid supporting legs (102) are installed at the bottom of the cabinet body (101), a cabinet door (103) matched with the cabinet body (101) is installed in the front of the cabinet body (101), a vent is arranged at the upper end of the right side wall of the cabinet body (101), a ventilation pipeline (2) is communicated with the right side of the vent, the ventilation pipeline (2) is fixed on the outer wall of the right side of the cabinet body (101), a heat dissipation fan (6) is installed in the inner cavity of the ventilation pipeline (2), a dustproof mesh enclosure (201) is configured at the pipe orifice of the ventilation pipeline (2), three groups of supporting seats (3) are fixed on the inner side wall of the cabinet body (101) from top to bottom, two supporting seats (3) are symmetrically arranged and are respectively fixed at the left end and the right end of the inner side wall of the cabinet body (101), two supporting seats are arranged between the supporting seats (3), the support plate (4) is provided with an associated power distributor.

2. The noise reduction and silencing device for the power distribution cabinet according to claim 1, wherein: and a microporous sound-absorbing plate (5) is fixed on the back surface of the supporting plate (4) in the inner cavity of the cabinet body (101).

3. The noise reduction and silencing device for the power distribution cabinet according to claim 1, wherein: the both ends of backup pad (4) are equipped with connection end (401), be equipped with the through-hole on connection end (401), be equipped with on supporting seat (3) draw-in groove (301) with connection end (401) looks adaptation, the bottom of draw-in groove (301) is fixed with connecting rod (302), the upper end surface of connecting rod (302) is equipped with the thread tooth's socket, connecting rod (302) run through-hole threaded connection has fastening nut, sliding connection has butt plate (303) on connecting rod (302), be connected with buffer spring (304) between the bottom of butt plate (303) and the bottom of draw-in groove (301), the up end bonding of butt plate (303) has rubber cushion (305).

4. The noise reduction and silencing device for the power distribution cabinet according to claim 1, wherein: the ventilation pipeline (2) comprises a circular outer shell (202), and an inner core of the circular outer shell (202) is provided with a vacuum cavity (203).

5. The noise reduction and silencing device for the power distribution cabinet according to claim 1, wherein: ventilating duct (2) inboard is close to dust screen panel (201) department joint and has tone screen board (7), the surface of tone screen board (7) is equipped with a plurality of ventilation holes (701) that are the distribution of annular array, the inboard in ventilation hole (701) all is equipped with two curved surfaces and inhales sound cotton net (702) and a plane and inhales sound cotton net (703), sound cotton net (703) are inhaled in the middle of being located two curved surfaces and inhaling sound cotton net (702) in the plane.

6. The noise reduction and silencing device for the power distribution cabinet according to claim 5, wherein: both sides of the ventilation hole (701) are arc-shaped curved surfaces.

7. The noise reduction and silencing device for the power distribution cabinet according to claim 1, wherein: the cabinet body (101) comprises a magnesium-aluminum alloy metal outer shell (104), a honeycomb plate (105) and a stainless steel metal inner shell (106), and sound-absorbing cotton is placed in honeycomb holes in the honeycomb plate (105).

8. The noise reduction and silencing device for the power distribution cabinet according to claim 7, wherein: the outer surface of the magnesium-aluminum alloy metal outer shell (104) and the front surface of the cabinet door (103) are coated with antirust paint, and the surface of the stainless steel metal inner shell (106) and the back surface of the cabinet door (103) are coated with sound-absorbing antistatic emulsion paint.