CN216783285U

CN216783285U - Electric pile operation noise reduction control device

Info

Publication number: CN216783285U
Application number: CN202123061638.0U
Authority: CN
Inventors: 赵阳; 俄立波; 陈霞; 殷玉朋
Original assignee: State Grid Corp of China SGCC; Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-06-21
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a noise reduction control device for operation noise of an electric pile, which is arranged at the positions of an air inlet and an air outlet of the electric pile and comprises an outer frame, wherein a sound absorption part is arranged in the outer frame, the sound absorption part is arranged in the outer frame in a bending way, and wind passes through the sound absorption part to be bent and absorbed for multiple times at the air inlet and the air outlet; the four sides of the outer frame are provided with magnetic stripes. The device is respectively arranged on the air inlet side and the air outlet side of the high-power charging pile, so that the noise of the air inlet and the air outlet of the equipment is reduced, and the relevant standard of noise control is met. The composite sound-insulation noise-reduction material with multiple light weights is adopted, the core target of reducing the noise index of the charging pile air inlet and outlet is focused, and the composite sound-insulation noise-reduction material has the advantages of light weight and low wind resistance. The noise reduction effect is obvious, the advantage characteristics of convenient carrying, swift installation.

Description

Electric pile operation noise reduction control device

Technical Field

The utility model relates to the technical field of high-power electric automobile charging piles, in particular to a noise reduction control device for operation noise of an electric pile.

Background

Under the large environment of new capital construction and double carbon targets, the construction and operation of electric automobile charging piles become important contents of the development strategy of national infrastructure construction. On the other hand, the holding capacity of domestic electric vehicles is exponentially increased, the electric vehicles are different from the traditional mode that a gas station follows along with the gas station, the electric vehicles generally need to continuously run for at least 30 minutes in the process of supplementing electric quantity to the charging station, and in order to realize shorter charging time, the charging pile mostly runs in a high-power output mode. However, under the existing charging pile technical conditions, the high-power charging pile brings larger heat dissipation capacity and higher operation noise, and the peak noise can reach 90 decibels and far exceeds the national relevant noise control standard. However, with the increasing layout density of charging piles in cities, it has become a normalized trend to build and operate high-power charging piles in residential areas or surrounding areas. In this case, how to implement noise reduction control is a problem to be solved. The existing traditional silencer adopts a steel or alloy shell, and the weight of the large monomer of the body type exceeds 20 kilograms; the silencing cover adopts the downward-pressing type air exhaust to achieve the purpose of reducing the noise of the air inlet and the air outlet of the charging pile.

The scheme has the advantages that the carrying and the installation need cooperation of multiple persons, a complex destructive installation mode is adopted, and holes are drilled on multiple positions of the ground drilling equipment; or can directly take the violence to push down and change the wind channel and lead to filling the long-term high temperature of electric pile inside module, equipment ageing spoilage risees fast, and average life reduces 40%.

The schemes have defects and serious defects in aspects of weight control, volume control, wind resistance, benefit index, installation convenience, carrying, traveling and the like, and do not have good application and popularization prospects.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the prior art, the utility model provides an electric pile operation noise reduction control device. The device is used for reducing the problem of environmental pollution caused by the operation noise of the charging pile. In the aspect of technical application, the device is respectively arranged on the air inlet side and the air outlet side of the high-power charging pile, so that the noise of an air inlet and an air outlet of equipment is reduced, and the relevant standard of noise control is met. The composite sound-insulation noise-reduction material adopts various light-weight composite sound-insulation noise-reduction materials, focuses on the core target of reducing the noise index of the charging pile air inlet and outlet, and has light weight and low wind resistance. The noise reduction effect is obvious, the advantage characteristics of convenient carrying, swift installation.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the electric pile operation noise reduction control device is arranged at the positions of an air inlet and an air outlet of an electric pile and comprises an outer frame, wherein a sound absorption part is arranged in the outer frame, the sound absorption part is arranged in the outer frame in a bending way, and wind passes through the sound absorption part to be bent and absorbed for multiple times at the air inlet and the air outlet; the four sides of the outer frame are provided with magnetic stripes.

Furthermore, the outer frame is made of a composite fiberboard, the outer frame is surrounded by a front blocking plate, a rear blocking plate, a top plate and a bottom plate, and the left side and the right side of the outer frame are open.

Further, inhale the sound part and be the fibreboard, the fibreboard includes the multirow, forms the ventilation duct of bending between two adjacent rows of fibreboards, and every row of fibreboard all is the state of bending and sets up in the frame.

Further, inhale the sound part and be the fibreboard, it has the ventilation hole to densely covered on the fibreboard, and the fibreboard includes the multirow, forms the ventilation duct of bending between two adjacent lines of fibreboards, and every line of fibreboard all is the state of bending and sets up in the frame.

Further, inhale the sound part and include the fibreboard and inhale the sound cotton, the surface all is provided with on the fibreboard and inhales the sound cotton, and the fibreboard with inhale the sound cotton including the multirow, form the ventilation duct of bending between two adjacent lines of fibreboards, every line of fibreboard with inhale the sound cotton and all be the state setting of bending in the frame.

Furthermore, the surface of the sound-absorbing cotton is provided with wavy bulges.

Furthermore, the fibreboard is 45 contained angles with vertical direction, and the angle of bending of fibreboard is 90.

Further, the top plate includes a horizontal portion and an inclined portion, the inclined portion being inclined downward, the horizontal portion being close to the electric pile, and the inclined portion being far from the electric pile.

Furthermore, the four corners, the bottom and the top of the outer frame are provided with nanometer fastening and pasting chamfers.

In summary, the technical scheme of the utility model has the following beneficial effects:

1. the light absorbing sound insulation material is adopted, the alloy can be transported by one hand, and the noise reduction effect is not different from that of the traditional alloy device.

2. The mounting time is 20 seconds, and the dismounting time is 40 seconds. Has the advantages of convenient carrying and installation, fire resistance, flame retardance, convenient maintenance and the like.

3. The batch production has low cost and can be popularized and applied in a large range.

Drawings

Fig. 1 is an overall structural view of the present invention.

Fig. 2 is a structural view of the first embodiment.

Fig. 3 is a structural view of the second embodiment.

FIG. 4 is a structural view of the third embodiment.

Fig. 5 is a view of the structure of the embodiment from the side of connection with the electric pile.

In the figure:

1 electric pile, 2 concrete foundation, 3 air intakes, 4 air outlets, 5 frames, 6 preceding closure plates, 7 back closure plates, 8 horizontal parts, 9 inclined parts, 10 bottom plates, 11 fiberboards, 12 ventilation holes, 13 sound-absorbing cotton, 14 bulges and 15 magnetic stripes.

Detailed Description

The features and principles of the present invention will be described in detail below with reference to the accompanying drawings, which illustrate embodiments of the utility model and are not intended to limit the scope of the utility model.

According to the operation noise reduction control device for the electric pile 1, the electric pile 1 is installed on a concrete foundation 2, as shown in the figure 1, the noise reduction control device is integrally installed at the positions of an air inlet 3 and an air outlet 4 of the electric pile 1 (installed at the left side and the right side of the electric pile 1 in the figure) in a cover body mode, the noise reduction control device comprises an outer frame 5, sound absorption parts are arranged in the outer frame 5, the sound absorption parts are arranged in the outer frame 5 in a bending mode, and wind passes through the sound absorption parts and is repeatedly bent and absorbed at the air inlet 3 and the air outlet 4.

The outer frame 5 is made of a composite fiber board 11, the outer frame 5 is formed by a front blocking board 6, a rear blocking board 7, a top board and a bottom board 10 in a surrounding mode, and the left side and the right side of the outer frame 5 are open. One of the core points of the existing sound-proof and noise-reduction cover is to completely adopt various lightweight, flame-retardant, sound-absorbing and noise-reducing composite materials, so that the total weight of the traditional silencer which takes steel or aluminum alloy as a main material is reduced to 20% of the total weight of the traditional silencer. The main material of the outer frame 5 adopts a three-layer composite fiber board 11, has strong bearing property and can cope with long-time wet and rain weather conditions; the internal sound absorption layer adopts a lighter porous fluffy fiber board 11 and wave-shaped sound absorption cotton 13, so that the absorption of vibration waves is enhanced. All the selected materials are provided with environment-friendly and flame-retardant detection reports sent by a third-party detection mechanism.

The top plate comprises a horizontal part 8 and an inclined part 9, said inclined part 9 being inclined downwards, the horizontal part 8 being close to the electric pile 1 and the inclined part being remote from the electric pile 1. The frame 5 of device vent sets up the roof part of shell into the decurrent mode of slope through special design, effectively avoids external wind pressure to disturb and the influence that the rainwater flows backward.

The first embodiment is as follows: as shown in fig. 2 and 5, the sound absorbing member is a fiber board 11, the fiber board 11 includes a plurality of rows, a bent ventilation duct is formed between two adjacent rows of fiber boards 11, and each row of fiber boards 11 is disposed in the outer frame 5 in a bent state.

In the second embodiment, as shown in fig. 3, the sound-absorbing component is a fiber board 11, the fiber board 11 is densely provided with vent holes 12, the fiber board 11 includes a plurality of rows, a bent vent air channel is formed between two adjacent rows of fiber boards 11, and each row of fiber boards 11 is arranged in the outer frame 5 in a bent state.

Example three: as shown in fig. 4, the sound absorption member includes a fiber board 11 and sound absorption cotton 13, the sound absorption cotton 13 is disposed on both upper and lower surfaces of the fiber board 11, the fiber board 11 and the sound absorption cotton 13 include a plurality of rows, a bent ventilation air duct is formed between two adjacent rows of fiber boards 11, and each row of fiber boards 11 and the sound absorption cotton 13 are disposed in the outer frame 5 in a bent state. The sound absorption cotton 13 is provided with wave-shaped bulges 14 on the surface.

The fiber board 11 and the vertical direction form an included angle of 45 degrees, and the bending angle of the fiber board 11 is 90 degrees. The design of inside many bending is utility model's core content, and the purpose of bending is through changing inside wind channel route many times, the current length in extension wind channel to the energy ripples is finally surveyed at airing exhaust after being absorbed by multiple reflection in the in-process of propagating in this passageway and is discharged. The numerical values of the bending angle of the internal air duct and the total thickness of the device are obtained through sufficient wind resistance coefficient experiment data, so that the balance of noise reduction and wind resistance is guaranteed to the maximum extent, and the fault caused by unsmooth high-temperature heat dissipation after the equipment is operated is avoided.

The internal bending is formed by mixing a 12 mm-thick composite fiberboard 11 and a 20 mm-thick wave-shaped sound absorption cotton 13, and the wind energy is turned back for three times at angles of 45 degrees, 45 degrees and 45 degrees respectively by adopting a three-bending mode and is finally discharged. The vibration energy is absorbed and consumed step by step in the process of repeated movement in the whole process. Wherein, the middle 45 degrees wind kinetic energy concentrated climbing stage uses the wave-shaped sound-absorbing cotton 13 with the thickness of 20 mm to realize the maximum absorption force. The ventilation and the wind pressure are kept in a reasonable range in the whole process, and finally the wind energy is discharged in a downward 45-degree mode.

The utility model considers the convenience requirement during operation and maintenance work, and adopts the solution of the thickened magnetic strips 15 on the four sides of the device, so as to realize the quick attraction of the device and the charging pile 1 body. Simultaneously, for reinforcing device fastening degree prevent to make this device and fill electric pile 1 formation dislocation scene influence attraction effect when removing because of filling 1 rifle line in electric pile, the special design has increased thickened type nanometer fastening at four corners and bottom, top and has pasted the chamfer for the device can not be in horizontal or vertical displacement deviation that appears.

According to the result of a qualified third-party detection mechanism, the instantaneous current of a charging pile 1 of a certain charging station in denna is 201A, the distance from the charging pile to an air inlet is 20 cm, and when the charging pile is 1 m away from the ground (the buzzer is obvious), the test conclusion is that the air inlet 3 is 88.3 decibels, and the air outlet 4 is 84.2 decibels.

After the noise control device of the charging pile 1 is installed, the test is carried out, and the installation convenience and safety are checked and evaluated, and the conclusion is as follows:

(1) after the test of the installation device, the maximum noise reduction value is 10 decibels, and the minimum noise reduction value is 7.8 decibels. The noise reduction effect is obvious, fills electric pile 1 high frequency buzzing sound and has basically eliminated.

(2) The device total weight is 6.5 kilograms, takes the powerful magnetic stripe 15 modes of inside four sides and fills 1 main part actuation of electric pile, and installation time is 20 seconds, and dismantlement time is 40 seconds, has portable and the characteristics of installation.

(3) The device body is made of flame-retardant sound-absorbing materials and has fireproof and flame-retardant properties.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to be covered by the protection scope defined by the claims of the present invention.

Claims

1. The electric pile operation noise reduction control device is characterized in that the device is arranged at the positions of an air inlet and an air outlet of an electric pile and comprises an outer frame, wherein a sound absorption part is arranged in the outer frame, the sound absorption part is arranged in the outer frame in a bending way, and wind passes through the sound absorption part to be bent and absorbed for multiple times at the air inlet and the air outlet; the four sides of the outer frame are provided with magnetic stripes.

2. The electric pile operation noise reduction control device according to claim 1, wherein the outer frame is made of a composite fiber board, the outer frame is enclosed by a front blocking plate, a rear blocking plate, a top plate and a bottom plate, and the left side and the right side of the outer frame are open.

3. The electric pile operation noise reduction control device according to claim 2, wherein the sound absorption component is a fiber board, the fiber board comprises a plurality of rows, a bent ventilation air duct is formed between two adjacent rows of the fiber board, and each row of the fiber board is arranged in the outer frame in a bent state.

4. The electric pile operation noise reduction control device according to claim 2, wherein the sound absorption component is a fiber board, the fiber board is densely provided with vent holes, the fiber board comprises a plurality of rows, a bent vent air duct is formed between two adjacent rows of the fiber board, and each row of the fiber board is arranged in the outer frame in a bent state.

5. The pile operation noise reduction control device according to claim 2, wherein the sound absorption member comprises a fiber board and sound absorption cotton, the sound absorption cotton is arranged on the upper surface and the lower surface of the fiber board, the fiber board and the sound absorption cotton comprise multiple rows, a bent ventilation air duct is formed between two adjacent rows of the fiber board, and each row of the fiber board and the sound absorption cotton are arranged in the outer frame in a bent state.

6. An electric pile operation noise reduction control device according to claim 5, wherein the sound-absorbing cotton is provided with wavy protrusions on the surface.

7. An electric pile operation noise reduction control device according to claim 3, 4 or 5, wherein the angle between the fiber board and the vertical direction is 45 degrees, and the bending angle of the fiber board is 90 degrees.

8. An electric pile operation noise reduction control apparatus according to claim 2, wherein the top plate includes a horizontal portion and an inclined portion, the inclined portion being inclined downward, the horizontal portion being close to the electric pile, and the inclined portion being far from the electric pile.

9. The electric pile operation noise reduction control device according to claim 1, wherein the outer frame is provided with nanometer fastening and adhering chamfers at four corners, the bottom and the top.