CN215376913U

CN215376913U - Noise reduction system

Info

Publication number: CN215376913U
Application number: CN202121068515.7U
Authority: CN
Inventors: 吴杰; 岳兴; 李颖明
Original assignee: Shenzhen Infypower Co ltd
Current assignee: Shenzhen Infypower Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-31
Anticipated expiration: 2031-05-18

Abstract

The utility model provides a noise reduction system which comprises a sound absorption blade assembly and an outer cover with an accommodating cavity, wherein the outer cover is connected to a charging pile, the sound absorption blade assembly is arranged in the accommodating cavity, the sound absorption blade assembly comprises at least one group of blades and sound absorption pieces, and the sound absorption pieces are arranged on two sides of the blades. The sound absorbing parts are arranged on two sides of the blade, and the blade is vertically arranged in the outer cover from top to bottom, so that the sound absorbing parts and the blade and the outer cover form a labyrinth silencer together, the noise reduction air channel with the structure is effectively guaranteed, and the sound absorbing coefficient of sound absorbing cotton can not be reduced even if the noise reduction air channel is used under an outdoor condition. On charging the air inlet or air-out or business turn over wind route of electric pile, set up foretell noise reduction system, can effectual reduction charge electric pile and reach external noise, need not reduce system's output, do not have any extra input, just solve noise interference's vexation, satisfy the requirement of authentication standard.

Description

Noise reduction system

Technical Field

The utility model relates to an electric vehicle charging system, in particular to a noise reduction system.

Background

Along with the development of electric automobiles, the demand of charging equipment is rapidly increased, and more manufacturers are added to the development and production of charging equipment. The direct current in the existing market fills electric pile heat dissipation mode and still gives first place to direct ventilation forced air cooling, and direct ventilation's heat dissipation mode can produce the noise, and the noise has been avoided not passing to the external world. The noise of most charging piles seriously exceeds the standard and does not meet the standard requirement. With the increase of customer complaints about the noise of charging piles, more and more manufacturers are aware of the necessity of solving the noise problem. The existing solution has two aspects, on one hand, a larger installation space is needed, and a sound insulation barrier is additionally arranged on the charging equipment; on the other hand, the output power of the charging equipment is reduced, and the system cannot run at full power; the above solutions cannot meet the current requirements.

The utility model aims to provide a noise reduction system, which reduces the noise transmitted to the external environment by the noise absorption function of a noise reduction air channel.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the utility model is as follows: the existing charging pile sound-proof housing either needs a large installation space or cannot run at full power, and cannot meet the requirements of customers.

In order to solve the technical problem, the embodiment of the utility model adopts the following technical scheme:

the embodiment of the utility model provides a noise reduction system, which comprises a sound absorption blade assembly and an outer cover with an accommodating cavity, wherein the outer cover is connected with a charging pile, the sound absorption blade assembly is arranged in the accommodating cavity,

inhale the sound blade subassembly include at least a set of blade and inhale the sound piece, inhale the sound piece set up in the blade both sides.

Further, inhale the sound piece and include that the first sound of inhaling is cotton and the sound is cotton with the second sound of inhaling, one side of blade is fixed with the equidistance setting the first sound of inhaling is cotton, the opposite side of blade is fixed with the equidistance setting the sound is cotton is inhaled to the second, the first sound of inhaling cotton with the sound cotton crisscross setting is inhaled to the second.

Further, the first sound absorption cotton and the second sound absorption cotton are long-strip-shaped and are aligned with two ends of the blade.

Furthermore, the cross sections of the first sound absorption cotton and the second sound absorption cotton are trapezoidal, triangular or quadrilateral.

Furthermore, one end, far away from the charging pile, of each blade is provided with a water retaining turning surface.

Further, the blade is 2 at least, 2 at least the blade equidistance stacks in proper order, is formed with the ventilation duct between the blade, ventilation duct week side is provided with the third and inhales the sound cotton.

Furthermore, the inner side surface of the outer cover is provided with fourth sound-absorbing cotton.

Furthermore, a plurality of through holes are formed in the outer cover, and the ventilation air duct is communicated with the through holes.

The embodiment of the utility model has the beneficial effects that: the embodiment of the utility model provides a noise reduction system which comprises a sound absorption blade assembly and an outer cover with an accommodating cavity, wherein the outer cover is connected to a charging pile, the sound absorption blade assembly is arranged in the accommodating cavity, the sound absorption blade assembly comprises at least one group of blades and sound absorption pieces, and the sound absorption pieces are arranged on two sides of the blades. Through set up in blade both sides and inhale the sound piece, the blade is vertical arranging from last to down in the dustcoat for inhale the sound piece and constitute "labyrinth silencer" with blade, dustcoat together, effectively guarantee the wind channel of making an uproar that falls of this structure, even use under the open air condition, also can not reduce and inhale cotton acoustic absorption coefficient. On charging the air inlet or air-out or business turn over wind route of electric pile, set up foretell noise reduction system, can effectual reduction charge electric pile and reach external noise, need not reduce system's output, do not have any extra input, just solve noise interference's vexation, satisfy the requirement of authentication standard.

Drawings

The detailed structure of the embodiment of the utility model is described in detail below with reference to the accompanying drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the present invention taken along the line A-A of FIG. 2;

FIG. 4 is an enlarged view of portion A circled in FIG. 3 of the present invention;

fig. 5 is a schematic structural diagram of a sound absorbing blade assembly according to an embodiment of the utility model.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1 to 5, an embodiment of the present invention provides a noise reduction system, which includes a sound-absorbing blade assembly 1 and an outer cover 2 having an accommodating cavity, the outer cover 2 is connected to a charging pile 3, the sound-absorbing blade assembly 1 is disposed in the accommodating cavity, the sound-absorbing blade assembly 1 is sequentially stacked in the accommodating cavity at equal intervals, wherein,

the sound absorbing blade assembly 1 comprises at least one group of blades 11 and sound absorbing pieces 12, wherein the sound absorbing pieces 12 are arranged on two sides of the blades 11.

In this embodiment, through set up in 11 both sides of blade and inhale sound piece 12, blade 11 is vertical arranging from last to down in dustcoat 2 for inhale sound piece 12 and blade 11, dustcoat 2 and constitute "labyrinth silencer" together, effectively guarantee the wind channel of making an uproar that falls of this structure, even use under the open air condition, can not reduce the sound absorption coefficient who inhales the sound piece yet. On filling electric pile 3's air inlet or air-out or business turn over wind route, set up foretell noise reduction system, can 3 noises that reach the external world of electric pile are filled in effectual reduction, need not reduce system's output, do not have any extra input, just solve noise jamming's vexation, satisfy the requirement of authentication standard.

Further, inhale sound piece 12 and include that first inhale sound cotton 121 and second inhale sound cotton 122, one side of blade 11 is fixed with the first sound cotton 121 that inhales that the equidistance set up, the second that the opposite side of blade 11 was fixed with the equidistance and inhales sound cotton 122, the first sound cotton 121 that inhales is inhaled with the second and inhales the crisscross setting of sound cotton 122, the first sound cotton 121, the second of inhaling inhaleing inhales sound cotton 122 and is rectangular form, and aligns with blade 11 both ends, the first sound cotton 121, the second of inhaling inhales the cross-section of sound cotton 122 and is trapezoidal, triangle-shaped or quadrangle.

In this embodiment, the first sound absorbing cotton 121 and the second sound absorbing cotton 122 are disposed on the upper and lower surfaces of the blade 11 and arranged at a desired interval, and the first sound absorbing cotton 121 and the second sound absorbing cotton 122 on the blade 11 are arranged in an up-down cross manner, so as to form a labyrinth silencer type structure, which can ventilate and absorb sound waves transmitted from the air duct to the outside.

Further, one end of the blade 11, which is far away from the charging pile 3, is provided with a water blocking turning surface 111.

In this embodiment, the water blocking turning surface 111 is disposed on one side of the sound absorbing member 12, and plays a role of blocking water for the sound absorbing member 12, so as to ensure that the sound absorbing member 12 is not wetted by water when used outdoors, and does not affect the sound absorbing performance.

Further, blade 11 is 2 at least, stacks in proper order equidistance between 2 at least blade 11, is formed with the ventilation duct between blade 11, and ventilation duct week side is provided with the third and inhales the sound cotton.

In this embodiment, the blades 11 are arranged at a desired interval, and preferably, the blades 11 are arranged obliquely, so as to further form a ventilating labyrinth, and the third sound-absorbing cotton plays a role in absorbing noise, so that the third sound-absorbing cotton can ventilate and absorb sound waves transmitted from the air duct to the outside.

Further, the inner side surface of the outer cover 2 is provided with fourth sound absorption cotton.

In this embodiment, the fourth is inhaled the sound cotton, has constituted multi-layer ventilation channel with inhaling sound blade subassembly 1 together, has communicated and has filled electric pile 3 and external world, can ventilate and also can absorb the sound wave that reaches external world from the wind channel.

Furthermore, a plurality of through holes 21 are formed in the outer cover 2, and the ventilation air duct is communicated with the through holes 21, so that the ventilation air duct is communicated with the outside.

In summary, the noise reduction system provided by the utility model is arranged on the air inlet or outlet or air inlet and outlet path of the charging pile, so that the ventilation and heat dissipation between the cabinet and the external environment are met, the noise transmitted to the outside by the charging pile can be effectively reduced, the output power of the system is not required to be reduced, no extra investment is required, and the requirement of the certification standard is met.

It is further noted that, in the present disclosure, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined in this disclosure may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A noise reduction system, characterized by: comprises a sound-absorbing blade assembly and an outer cover with an accommodating cavity, the outer cover is connected with the charging pile, the sound-absorbing blade assembly is arranged in the accommodating cavity, wherein,

2. The noise reduction system of claim 1, wherein: inhale the sound piece and include that the first sound of inhaling is cotton and the sound cotton is inhaled to the second, one side of blade is fixed with the equidistance setting the first sound of inhaling is cotton, the opposite side of blade is fixed with the equidistance setting the sound is cotton is inhaled to the second, the first sound of inhaling cotton with the cotton crisscross setting of sound is inhaled to the second.

3. The noise reduction system of claim 2, wherein: the first sound-absorbing cotton and the second sound-absorbing cotton are in long strips and are aligned with the two ends of the blade.

4. The noise reduction system of claim 2, wherein: the cross section of the first sound-absorbing cotton and the cross section of the second sound-absorbing cotton are trapezoidal, triangular or quadrilateral.

5. The noise reduction system of claim 4, wherein: the blade is kept away from the one end of filling electric pile is provided with manger plate turn-over face.

6. The noise reduction system of claim 5, wherein: the blade is 2 at least, 2 at least the blade equidistance stacks in proper order, is formed with the ventilation duct between the blade, ventilation duct week side is provided with the third and inhales the sound cotton.

7. The noise reduction system of claim 6, wherein: and a fourth sound-absorbing cotton is arranged on the inner side surface of the outer cover.

8. The noise reduction system of claim 7, wherein: a plurality of through holes are formed in the outer cover, and the ventilation air duct is communicated with the through holes.