CN219778516U - Noise reduction structure and new energy equipment - Google Patents

Abstract

The utility model discloses a noise reduction structure and new energy equipment, wherein the noise reduction structure is provided with a noise reduction channel and noise reduction cavities, two ends of the noise reduction channel are arranged in an opening manner, and the noise reduction channel is provided with at least two expansion cavities along the extending direction of the noise reduction channel; the outer side of at least one expansion cavity is provided with the noise reduction cavity, and the cavity wall of the expansion cavity is also provided with a plurality of first through holes communicated with the noise reduction cavity. According to the technical scheme, noise generated by the equipment during working can be reduced, so that the use experience of the equipment is improved.

Description

Noise reduction structure and new energy equipment

Technical Field

The utility model relates to the technical field of new energy equipment, in particular to a noise reduction structure and new energy equipment using the same.

Background

When the new energy equipment such as the energy storage cabinet, the inverter or the charging pile is used, a large amount of heat is generated by the electric devices in the equipment because of long-time work, so that the heat dissipation device such as a fan is usually arranged in the new energy equipment to dissipate heat, and the new energy equipment can work normally and stably. However, the heat dissipation device generates larger noise during working, which affects the use experience of the new energy equipment.

Disclosure of Invention

The utility model mainly aims to provide a noise reduction structure which aims to reduce noise generated by equipment during working so as to improve the use experience of the equipment.

In order to achieve the above purpose, the noise reduction structure provided by the utility model is provided with a noise reduction channel and a noise reduction cavity, wherein two ends of the noise reduction channel are provided with openings, and the noise reduction channel is provided with at least two expansion cavities along the extending direction of the noise reduction channel;

the outer side of at least one expansion cavity is provided with the noise reduction cavity, and the cavity wall of the expansion cavity is also provided with a plurality of first through holes communicated with the noise reduction cavity.

Optionally, the noise reduction channel comprises a first channel, a second channel and a third channel which are sequentially communicated, the cross sections of the first channel and the third channel are smaller than the cross section of the second channel, the second channel is formed into an expansion cavity, and the noise reduction cavity is arranged on the outer side of the second channel;

and the inner sides of the first channel and the third channel are respectively provided with a first baffle plate so as to separate the first channel and the third channel respectively to form at least one expansion cavity.

Optionally, the noise reduction structure includes:

An outer frame body;

the at least two guide plates are arranged in the outer frame body at intervals in sequence along a direction, and the at least two guide plates and the outer frame body are enclosed to form the second channel; and

the at least four cover covers are arranged in an opening way at one end, each two cover covers are respectively connected to the opposite ends of one guide plate, the two cover covers and the guide plate are enclosed to form the noise reduction cavity, and the guide plate is provided with the first through hole;

the two cover covers located at one end of the second channel and the outer frame body enclose to form the first channel, the two cover covers located at the other end of the second channel and the outer frame body enclose to form the third channel, and the cover covers are provided with the first partition plates.

Optionally, the guide plate comprises a first plate body, a second plate body and a third plate body which are sequentially connected, the second plate body, the first plate body and the third plate body are all arranged in an included angle, and the first plate body and the third plate body are arranged in an extending manner along the back-to-back direction;

the second plate body and the third plate body in each guide plate, the second plate body and the third plate body in the adjacent guide plates and the outer frame body are enclosed to form the second channel, and the first plate body and the third plate body are provided with the cover.

Optionally, the first plate body, the second plate body and the third plate body are all arranged in a flat plate shape;

and/or the first plate body, the second plate body and the third plate body are arranged in an integrated structure;

and/or the guide plate further comprises a fourth plate body, wherein at least one of the first plate body, the second plate body and the third plate body is provided with the fourth plate body, and the fourth plate body is attached to the outer frame body and connected with the outer frame body;

and/or the two opposite ends of the outer frame body are arranged in an opening way.

Optionally, the opposite surfaces of the two covering covers at the same end of the second channel are respectively provided with the first partition plates, and the first partition plates on the two covering covers are oppositely arranged;

and/or at least two first partition boards are arranged on the cover, and the at least two first partition boards are sequentially arranged at intervals along the airflow direction of the first channel or the third channel so as to separate the first channel and the third channel to form at least two expansion cavities;

and/or the first partition plate and the cover are arranged in an integrated structure;

and/or one side of the cover close to the guide plate is provided with a fixed plate, and the fixed plate is attached to the guide plate and connected with the guide plate.

Optionally, a second partition plate is arranged in the cover, the second partition plate separates the noise reduction cavity to form at least two subchambers, and the second partition plate is provided with a plurality of second through holes communicated with two adjacent subchambers.

Optionally, the second partition plate and the guide plate are disposed opposite to each other at a portion corresponding to the covering cover.

Optionally, the second via holes and the first via holes are arranged in a one-to-one correspondence;

or the second via hole and the first via hole are arranged in a dislocation mode.

Optionally, the number of the second clapboards is at least two, and the at least two second clapboards are sequentially arranged at intervals along a direction in the noise reduction cavity so as to divide the noise reduction cavity into at least two subchambers;

and/or, the second via hole is a round hole or a square hole.

Optionally, a first silencing layer is stuck in the noise reduction channel and/or the noise reduction cavity;

and/or, the first via hole is a round hole or a square hole.

The utility model also provides new energy equipment, which comprises:

the machine body is internally provided with a containing cavity, and is also provided with an air inlet and an air outlet which are communicated with the containing cavity;

The power supply module is arranged in the accommodating cavity;

the heat dissipation device is arranged on the machine body, can drive air flow to enter the accommodating cavity from the air inlet and is discharged through the air outlet; and

the noise reduction structure is the noise reduction structure, and a noise reduction channel of the noise reduction structure is communicated with the air inlet and/or the air outlet.

Optionally, the noise reduction structure is disposed in the accommodating cavity and is communicated with the air inlet.

Optionally, the machine body is defined to have an up-down direction, and the air inlet and the air outlet are arranged on the side wall of the machine body;

the new energy equipment further comprises an air inlet structure and an air outlet structure, wherein the air inlet structure and the air outlet structure are arranged on the outer side of the machine body and extend in the up-down direction;

the side wall of the air inlet structure and the side wall of the air outlet structure are respectively provided with an air passing port communicated with the air inlet and the air outlet, and the lower ends of the air inlet structure and the air outlet structure are respectively provided with a communication port.

Optionally, the air inlet structure and the air outlet structure are both provided with a main body air duct and a silencing cavity, and the main body air duct is arranged in an extending way along the up-down direction and is provided with the air outlet and the communication port;

The silencing cavity is arranged on the outer side of the main body channel, and a plurality of third through holes which are communicated with the main body channel and the silencing cavity are further formed in the side wall of the main body channel.

Optionally, the air inlet structure and the air outlet structure comprise an outer shell, a coaming and a enclosing cover; one end of the outer shell is provided with an opening and is covered on the outer side of the air inlet or the air outlet, and the bottom wall of the outer shell is provided with the communication port; the coaming is arranged in the outer shell and extends in the up-down direction, the coaming encloses the main body air channel and is provided with the air passing opening; the cover plate is arranged on the outer side of the coaming and is enclosed with the coaming to form the silencing cavity, and the coaming is provided with the third through hole;

and/or the number of the silencing cavities is at least two, and at least two silencing cavities are sequentially arranged along the up-down direction.

Optionally, a second silencing layer is stuck in the air inlet structure and/or the air outlet structure;

and/or the air inlet and/or the air outlet are provided with a grid structure;

and/or the side wall of the machine body is provided with two mounting openings, the two mounting openings are provided with door bodies, and the two doors can be respectively opened or covered on the two mounting openings when rotating relative to the machine body; one of the two door bodies is provided with the air inlet, and the other door body is provided with the air outlet; the air inlet structure and the noise reduction structure are respectively arranged on the outer side and the inner side of the door body provided with the air inlet, and the air outlet structure and the heat dissipation device are respectively arranged on the outer side and the inner side of the door body provided with the air outlet.

When the noise reduction structure is used, after noise enters the noise reduction channel, the expansion cavity is formed in the noise reduction channel, so that the channel sectional areas of the noise reduction channel at two ends of the expansion cavity are suddenly changed. In this case, the impedance of the sound wave of the noise is not matched and reflection occurs, and attenuation of the intensity of the noise is caused. And the outside of expansion chamber still is equipped with the chamber of making an uproar that falls for the noise that enters into in the passageway of making an uproar can also enter into the chamber of making an uproar through the first via hole on the chamber wall of expansion chamber. At this time, on the one hand, due to the relatively small size of the first via hole, the noise can resonate when passing through the first via hole and rub with the air in the first via hole, so that part of the noise is converted into heat energy and absorbed by the hole wall of the first via hole. On the other hand, the communication part of the first via hole and the noise reduction cavity also forms abrupt change of the sectional area of the channel, so that the impedance of sound waves of noise is not matched and can be reflected in the noise reduction cavity, and the intensity of the noise is attenuated. Therefore, the noise reduction channel of the noise reduction structure in the scheme can reflect and attenuate noise, so that a type of muffler is formed; the noise reduction cavity can absorb and attenuate noise and reflect and attenuate the noise, so that another type of muffler is formed, so that the noise reduction effect of the two mufflers can be well coupled at the moment, noise generated by the equipment in working is reduced, and the use experience of the equipment is improved. In addition, the noise reduction channel in the noise reduction structure is also provided with at least two expansion cavities along the extending direction of the noise reduction channel, so that the noise elimination frequency band of the noise reduction structure can be further widened by connecting the at least two expansion cavities in series, and the noise reduction effect on noise is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a new energy device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the new energy device of FIG. 1;

FIG. 3 is a schematic view of the new energy device of FIG. 1 from another perspective;

FIG. 4 is a schematic diagram of an embodiment of a noise reduction structure according to the present utility model;

FIG. 5 is a schematic cross-sectional view of the noise reducing structure of FIG. 4;

FIG. 6 is a schematic view of a portion of the noise reducing structure of FIG. 5;

FIG. 7 is an enlarged partial schematic view of FIG. 6 at A;

FIG. 8 is a schematic view of a partial structure of another embodiment of the noise reduction structure of the present utility model;

FIG. 9 is a schematic view of a partial structure of a noise reduction structure according to another embodiment of the present utility model;

FIG. 10 is a schematic diagram of the air inlet and outlet structures of the new energy device of FIG. 3;

FIG. 11 is a schematic view of the new energy device of FIG. 3 from another view of the air inlet and outlet structures

FIG. 12 is a schematic cross-sectional view of the air intake structure and the air outlet structure of FIG. 10;

fig. 13 is a partially enlarged schematic view of fig. 12 at B.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

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

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The inventor notices that more devices are inevitably more noisy when working. For example: when the new energy equipment such as the energy storage cabinet, the inverter or the charging pile is used, a large amount of heat is generated due to the fact that the electric devices in the equipment work for a long time, and the heat dissipation device such as a fan is usually arranged in the new energy equipment to dissipate heat, so that the new energy equipment can work normally and stably. However, the heat dissipation device generates larger noise during working, which affects the use experience of the new energy equipment.

Based on the above-mentioned consideration, in order to solve the problem that the noise of the equipment is large during operation, the inventor proposes a novel noise reduction structure, through setting up the noise reduction passageway that has two at least expansion chamber in series to and set up the noise reduction chamber that is outside the noise reduction passageway and communicate through the first via hole on the chamber wall of expansion chamber, with coupling two "silencers" to noise better elimination, thereby improve the use experience to equipment.

It should be noted that, referring to fig. 1 to 7 in combination, the noise reduction structure 10 of the present application may be applied to the new energy device 100, such as the energy storage cabinet, the inverter, or the charging pile, but is obviously not limited to this type of device. For example: in some mechanical devices, the noise reducing structure 10 of the present application may also be applied to noise generated by the motor when in operation. The noise reduction structure 10 according to the present application will be described in detail below, in one embodiment of the present application, the noise reduction structure 10 is provided with a noise reduction channel 11 and a noise reduction cavity 13, two ends of the noise reduction channel 11 are provided with openings, and the noise reduction channel 11 is provided with at least two expansion cavities 111 along the extending direction thereof; the outside of at least one expansion cavity 111 is provided with a noise reduction cavity 13, and the cavity wall of the expansion cavity 111 is also provided with a plurality of first through holes 112 communicated with the noise reduction cavity 13.

The noise reduction channel 11 may be used for noise entry and for attenuation of the noise during transmission within the noise reduction channel 11 to provide noise reduction. Specifically, both ends of the noise reduction channel 11 may be provided with openings, so that noise may enter through the openings at one end of the noise reduction channel 11 (as indicated by the dashed arrows in fig. 5, which is a transmission path of the noise). And the noise reduction channel 11 is formed with at least two expansion chambers 111 in the extending direction from one end to the other end of the noise reduction channel 11. That is, the cross-sectional area of the channel of at least two parts of the noise reduction channel 11 is larger than the cross-sectional area of the channel of other parts of the noise reduction channel 11, so that the cross-sectional area of the channel of the junction of the expansion cavity 111 of the noise reduction channel 11 and the other channel parts of the noise reduction channel 11 is suddenly changed, the impedance of the sound wave of the noise is not matched and reflected, and the intensity of the noise is attenuated, thereby realizing noise reduction of the noise. The noise reduction channel 11 may be disposed along a straight line, so that the noise reduction channel 11 is regular and is convenient for processing and shaping. Of course, the noise reduction channels 11 may also extend along the fold lines, so that the structure of the noise reduction channels 11 may be distributed more compactly to improve the convenience of subsequent installation thereof in a limited space. While the number of the expansion chambers 111 may be two, or three or more may be arranged in series. The cross-sectional areas of the passages of the expansion chambers 111 may be the same or different to reduce noise of different frequencies. The expansion chamber 111 may be formed by recessing only the inner wall surface of the noise reduction channel 11, and the outer wall surface may not protrude outward. Of course, the expansion chamber 111 may be formed by protruding the inner wall surface and the outer wall surface of the noise reduction channel 11.

The noise reduction cavity 13 is arranged at the outer side of the noise reduction channel 11 and corresponds to the expansion cavity 111, and a plurality of first through holes 112 communicated with the noise reduction cavity 13 are formed in the cavity wall of the expansion cavity 111. Accordingly, a portion of the noise in the noise reduction channel 11 may enter the noise reduction cavity 13 through the first via 112. In this process, the first via hole 112 is smaller than the expansion cavity 111 and the noise reduction cavity 13, so that when noise passes through the first via hole 112, the sound wave vibrates vigorously due to resonance and rubs with the air in the first via hole 112, so that part of the sound energy is converted into heat energy and absorbed to have a noise reduction effect. Meanwhile, abrupt change of the sectional area of the channel occurs at the connection part of the first via hole 112 and the noise reduction cavity 13, so that the impedance of sound waves of noise is not matched to be reflected, the intensity of the noise is attenuated, and noise reduction is realized again. Thus, the noise reduction chamber 13 has a dual effect of absorbing and eliminating noise and of reflecting and attenuating noise. The number of the noise reduction chambers 13 may be one, or two or more. The noise reduction cavity 13 may be disposed outside one expansion cavity 111, or the noise reduction cavity 13 may be disposed outside each expansion cavity 111. Furthermore, the outer side of each expansion chamber 111 may be provided with only one noise reduction chamber 13, or may be provided with two or more noise reduction chambers 13. The first via hole 112 communicating the expansion cavity 111 and the noise reduction cavity 13 may be a circular hole or a square hole, so that the shape of the first via hole 112 is regular and the processing and shaping of the first via hole are convenient. Of course, the present application is not limited thereto, and in other embodiments, the shape of the first via 112 may be a triangular hole or an elliptical hole. The first vias 112 may be uniformly spaced apart to improve the compactness of the first vias 112 and further improve the convenience of forming. Of course, the present application is not limited thereto, and in other embodiments, the first vias 112 may be distributed in a disordered manner.

When the noise reduction structure 10 is used, after noise enters the noise reduction channel 11, the channel sectional areas of the noise reduction channel 11 at two ends of the expansion cavity 111 are suddenly changed due to the expansion cavity 111 formed in the noise reduction channel 11. In this case, the impedance of the sound wave of the noise is not matched and reflection occurs, and attenuation of the intensity of the noise is caused. Furthermore, the noise reduction cavity 13 is further arranged on the outer side of the expansion cavity 111, so that noise entering the noise reduction channel 11 can enter the noise reduction cavity 13 through the first through hole 112 on the cavity wall of the expansion cavity 111. At this time, on the one hand, since the first via 112 is also provided relatively small, noise may resonate and rub with air in the first via 112 when passing through the first via 112, resulting in that part of the noise is converted into heat energy to be absorbed by the wall of the first via 112. On the other hand, the communication between the first via 112 and the noise reduction cavity 13 also forms abrupt changes in the cross-sectional area of the channel, so that the impedance of the sound wave of the noise is not matched and can be reflected in the noise reduction cavity 13, and attenuation of the intensity of the noise is caused. Thus, the noise reduction channel 11 of the noise reduction structure 10 in this embodiment can reflect and attenuate noise, so to speak, form a type of "muffler"; the noise reduction cavity 13 can absorb and attenuate noise and reflect and attenuate the noise, so that another type of muffler is formed, so that the noise reduction effect of the two mufflers can be well coupled at the moment, noise generated by the equipment in working is reduced, and the use experience of the equipment is improved. In addition, the noise reduction channel 11 in the noise reduction structure 10 in this solution is further provided with at least two expansion cavities 111 along the extending direction thereof, so that by connecting at least two expansion cavities 111 in series, the noise reduction frequency band of the noise reduction structure 10 can be further widened, thereby being beneficial to further improving the noise reduction effect on noise.

Referring to fig. 5 to fig. 7 in combination, in an embodiment of the present application, the noise reduction channel 11 includes a first channel 113, a second channel 114 and a third channel 115 that are sequentially communicated, the cross-sectional areas of the first channel 113 and the third channel 115 are smaller than the cross-sectional area of the second channel 114, the second channel 114 is formed as an expansion cavity 111, and the noise reduction cavity 13 is disposed outside the second channel 114; the inner sides of the first and third passages 113 and 115 are each provided with a first partition 116 to separate the first and third passages 113 and 115, respectively, to form at least one expansion chamber 111.

The first channel 113 and the third channel 115 in the noise reduction channel 11 are respectively connected to two ends of the second channel 114, and the channel cross sections of the first channel 113 and the third channel 115 are smaller than the cross section of the second channel 114, so that the noise reduction channel 11 is in a shape that a middle section body protrudes outwards to have a larger volume, and two end section bodies have relatively smaller volumes. And a first partition 116 provided in the first and third passages 113 and 115 may serve to further separate the first and third passages 113 and 115. Specifically, when the first partition 116 is disposed from one of the opposite inner surfaces of the first channel 113 and the third channel 115 toward the other, for example, the inner upper surfaces of the first channel 113 and the third channel 115 extend toward the inner lower surfaces, the channel cross-sectional area defined by the corresponding positions of the first partition 116 and the inner lower surfaces is smaller than the original channel cross-sectional areas of the first channel 113 and the third channel 115, so that the side surfaces of the first partition 116, the inner upper surfaces of the first channel 113 and the third channel 115, and the inner lower surfaces can be said to define an expansion chamber 111 therebetween. The first partition 116 may be disposed in a flat plate shape, so that the shape is regular and the processing and the forming are convenient. Of course, the first partition 116 may be provided in an arc-like plate shape. Further, the first separator 116 may be provided on both of the opposite inner surfaces of the first passage 113 and the third passage 115, or the first separator 116 may be provided on one of the opposite inner surfaces.

In the present embodiment, the other expansion chambers 111 are formed by forming the second passage 114 having a relatively large passage sectional area as one expansion chamber 111, and further providing the first partition 116 in the first passage 113 and the third passage 115. The volume of the expansion chamber 111 is always smaller than that of the expansion chamber 111 formed by the second channel 114, so that the overall volume of the noise reduction structure 10 is relatively smaller, and convenience in subsequent installation of the noise reduction structure 10 in a limited space is improved.

Referring to fig. 4 to fig. 6 in combination, in an embodiment of the application, the noise reduction structure 10 includes an outer frame 15, at least two guide plates 17 and at least four cover covers 19, wherein the at least two guide plates 17 are disposed in the outer frame 15 and are sequentially spaced along a direction, and the at least two guide plates 17 and the outer frame 15 enclose a second channel 114; the cover covers 19 are arranged with one end open, each two cover covers 19 are respectively connected with the opposite ends of one guide plate 17, and enclose with the guide plate 17 to form a noise reduction cavity 13, and the guide plate 17 is provided with a first via 112; the two cover covers 19 at one end of the second channel 114 and the outer frame 15 enclose to form a first channel 113, the two cover covers 19 at the other end of the second channel 114 and the outer frame 15 enclose to form a third channel 115, and the cover covers 19 are provided with a first partition 116.

The outer frame 15 may have a frame structure with openings at both ends, and at least two guide plates 17 may be distributed in a direction from one to the other of opposite sides of the outer frame 15, for example: at least two guide plates 17 may be sequentially disposed in the up-down direction. The number of the guide plates 17 may be two, and one noise reduction channel 11 is formed. Of course, the number of the guide plates 17 may be three, and two noise reduction channels 11 are formed at this time. Therefore, the number of the guide plates 17 is N (N.gtoreq.2), and the number of the noise reduction passages 11 is N-1. The two adjacent guide plates 17 and the outer frame 15 enclose to form the second channel 114, so that the two adjacent guide plates 17 can be formed as one set of two opposite channel walls in the second channel 114, and the two opposite walls of the outer frame 15 can be formed as the other set of two opposite channel walls in the second channel 114. The cover 19 is a cover body structure with an opening at one end, and covers the outer side of the first via hole 112, and the noise reduction cavity 13 can be formed by enclosing the cover 19 and the guide plate 17.

In this embodiment, the noise reduction structure 10 is composed of an outer frame body 15, at least two guide plates 17 and at least four cover covers 19, so that each part of the noise reduction structure 10 can be manufactured independently, and then the noise reduction channels 11 and the noise reduction cavities 13 can be formed by assembling each part into a whole. At this time, the split outer frame 15, the guide plate 17 and the cover 19 are relatively simple in structure, so that the convenience in processing and forming the noise reduction channel 11 and the noise reduction cavity 13 is further improved. Of course, it should be noted that, in other embodiments, the noise reduction structure 10 may be formed by splicing a plurality of pipes having the expansion chambers 111, and further splicing a box body at the outer side of the pipes, so as to form the noise reduction chamber 13 by enclosing the box body and the pipes.

Referring to fig. 5 and fig. 6 in combination, in an embodiment of the application, the guide plate 17 includes a first plate 171, a second plate 173 and a third plate 175 connected in sequence, the second plate 173 and the first plate 171 and the third plate 175 are disposed at an included angle, and the first plate 171 and the third plate 175 extend along a back-to-back direction; the second and third plates 173 and 175 of each guide plate 17, the second and third plates 173 and 175 of the adjacent guide plates 17, and the outer frame 15 enclose to form the second channel 114, and the first and third plates 171 and 175 are provided with the cover 19.

The first plate body 171, the second plate body 173 and the third plate body 175 in the guide plate 17 are sequentially connected and are disposed at an included angle, so that the guide plate 17 can be approximately formed into a "Z" shape, and at this time, the first channel 113 and the third channel 115 can be formed to be horizontal, and the second channel 114 is formed to be vertical to the noise reduction channel 11. The second plate 173 and the first plate 171 and the third plate 175 are all disposed at an included angle, which means that when the first plate 171, the second plate 173 and the third plate 175 are all in a flat plate structure, the planes of the two adjacent plates enclose an included angle; when the first plate 171, the second plate 173 and the third plate 175 are all in an arc-shaped plate structure, the tangent lines of two adjacent plates enclose an included angle.

In this embodiment, the guide plates 17 are set to be sequentially connected and are arranged in an included angle mode, so that the noise reduction channel 11 extends along the fold line, and further does not extend too long in a single direction, so that the space occupation is large in the direction. Thus, such an arrangement can make full use of the space in all directions so as to improve the compactness of the noise reduction structure 10. In addition, when the plurality of guide plates 17 are disposed in the vertical direction, the third plate 175 of the uppermost guide plate 17 may not be provided with the cover 19, and the third passage 115 may be defined by the third plate 175 and the cover 19 of the third plate 175 of the adjacent guide plates 17. Similarly, the first plate 171 of the lowermost guide plate 17 may not be provided with the cover 19, and the first passage 113 may be defined by the first plate 171 and the cover 19 of the first plate 171 of the adjacent guide plate 17 along the horizontal extending portion.

In an embodiment of the present application, the first plate 171, the second plate 173 and the third plate 175 are all disposed in a flat plate shape.

In this embodiment, the first plate 171, the second plate 173 and the third plate 175 are all configured as flat plate structures, so that the structures of the respective plates are relatively simple, and convenience in processing and forming is improved. Of course, the present application is not limited thereto, and in other embodiments, the first plate 171 and the third plate 175 may be disposed in a flat plate shape, and the second plate 173 may be disposed in an arc plate shape; alternatively, the first plate 171, the second plate 173, and the third plate 175 are all disposed in an arc shape.

In an embodiment of the present application, the first plate 171, the second plate 173 and the third plate 175 are integrally formed.

Is provided in a unitary structure, that is, the first plate 171, the second plate 173, and the third plate 175 are formed as a unitary structure that is not detachable.

In the present embodiment, the first plate body 171, the second plate body 173, and the third plate body 175 are provided as one body, so that the strength of each portion at the joint can be enhanced so as to improve the overall strength of the guide plate 17. Meanwhile, such arrangement also allows the guide plate 17 to be manufactured by integral molding, so as to improve convenience in processing and molding the guide plate 17. It should be noted that, in other embodiments, the first plate 171, the second plate 173 and the third plate 175 may be separately provided and then assembled and connected.

Referring to fig. 6, in an embodiment of the application, the guide plate 17 further includes a fourth plate 177, at least one of the first plate 171, the second plate 173 and the third plate 175 is provided with the fourth plate 177, and the fourth plate 177 is attached to the outer frame 15 and connected to the outer frame 15.

At least one of the first plate 171, the second plate 173 and the third plate 175 is provided with a fourth plate 177, that is, only the first plate 171 may be provided with the fourth plate 177, only the second plate 173 may be provided with the fourth plate 177, only the third plate 175 may be provided with the fourth plate 177, or two or three of the first plate 171, the second plate 173 and the third plate 175 may be provided with the fourth plate 177. The fourth plate 177 is disposed at an angle to the first plate 171, the second plate 173, and the third plate 175, and can be attached to the inner surface of the outer frame 15. Therefore, an installation position can be provided by the fourth plate body 177 so as to provide a connection structure for fixing the guide plate 17 to the outer frame body 15. For example: the fourth plate body 177 may be provided with mounting holes through which screws pass so as to fix the guide plate 17 to the outer frame body 15 by passing the screws.

In this embodiment, the first plate 171 may be attached to the outer frame 15, so that the first plate and the outer frame 15 may have relatively large contact areas, so that the guide plate 17 may be conveniently mounted on the outer frame 15, and the stability of mounting the guide plate 17 on the outer frame 15 may be improved.

In one embodiment of the present application, opposite ends of the outer frame 15 are provided in an opening.

In this embodiment, the two opposite ends of the outer frame 15 are provided with openings, which can facilitate the exposure of the openings at the two ends of the noise reduction channel 11, and make the structure of the outer frame 15 simpler, thereby being beneficial to improving the convenience of processing and forming the outer frame. The outer frame 15 may be formed by enclosing a plurality of flat plates connected end to end, or may further include a flange encircling the outer side of the flat plates, so as to be used for installing the outer frame 15.

Referring to fig. 6, in an embodiment of the application, the opposite surfaces of the two covers 19 at the same end of the second channel 114 are respectively provided with a first partition 116, and the first partitions 116 on the two covers 19 are disposed opposite to each other.

In this embodiment, the two covers 19 for enclosing to form the first channel 113 or the second channel 114 are provided with the first partition 116, and the first partition 116 on the two covers 19 are correspondingly disposed. One aspect is to make the first separator 116 unnecessary to be provided relatively long to improve convenience in its processing and molding. On the other hand, the structures of the cover 19 can be identical, so that the cover 19 is convenient for mass production, and the convenience and efficiency of production are improved.

Referring to fig. 8 or fig. 9 in combination, in an embodiment of the application, at least two first partitions 116 are disposed on the covering cover 19, and the at least two first partitions 116 are sequentially spaced along the airflow direction of the first channel 113 or the third channel 115, so as to form at least two expansion cavities 111 on the first channel 113 and the third channel 115 respectively.

In the present embodiment, the arrangement of at least two first separators 116 may divide the first channels 113 and the third channels 115 respectively to form more expansion chambers 111, so as to further widen the noise attenuation band of the noise reduction structure 10 by connecting more expansion chambers 111 in series, so as to further improve the noise reduction effect on noise.

In one embodiment of the present application, the first partition 116 and the cover 19 are provided in a unitary structure.

Is provided in a unitary structure, that is to say the first partition 116 and the covering cap 19 are formed as a unitary structure which is not detachable.

In the present embodiment, the first separator 116 and the cover 19 are provided integrally, so that the strength of each portion at the joint can be enhanced to enhance the overall strength of the portion structure. At the same time, this arrangement also allows the first separator 116 and the cover 19 to be manufactured by integral molding, so as to improve the convenience of the molding thereof. It should be noted that, in other embodiments, the first partition 116 and the cover 19 may be provided separately, and then assembled and connected.

Referring to fig. 6 and fig. 7 in combination, in an embodiment of the application, a fixing plate 191 is disposed on a side of the cover 19 close to the guide plate 17, and the fixing plate 191 is attached to the guide plate 17 and connected to the guide plate 17.

In this embodiment, the fixing plate 191 attached to the guide plate 17 can better provide a mounting position, so that a relatively large contact area is provided between the cover 19 and the guide plate 17, thereby facilitating the mounting and fixing of the cover 19 to the guide plate 17, and improving the mounting stability of the cover 19 on the guide plate 17.

Referring to fig. 6 and fig. 7 in combination, in an embodiment of the present application, a second partition 193 is disposed in the cover 19, the second partition 193 separates the noise reduction cavity 13 into at least two sub-cavities 131, and the second partition 193 is provided with a plurality of second through holes 195 communicating with two adjacent sub-cavities 131.

In the present embodiment, by providing the second partition 193, the noise reduction chamber 13 can be divided to form at least two sub-chambers 131. In other words, the structure corresponding to the series connection of at least two "noise reduction chambers 13" can further reduce the noise elimination frequency to widen the noise elimination frequency band again and improve the noise reduction effect. Wherein the number of the second spacers 193 may be one. Of course, the number of the second partition boards 193 may be at least two, and the at least two second partition boards 193 are sequentially arranged in the noise reduction cavity 13 at intervals along a direction, so as to partition the noise reduction cavity 13 into at least two sub-cavities 131, and at this time, the series connection of a greater number of sub-cavities 131 can better reduce the noise elimination frequency. And the second via 195 may be a circular hole or a square hole so that it is regular in shape and is convenient to process and shape. And further, the plurality of second vias 195 may be uniformly spaced apart so that they are distributed more regularly to further enhance the convenience of the process. Of course, the present application is not limited thereto, and in other embodiments, the second vias 195 may be triangular holes or oval holes, and the plurality of second vias 195 may be randomly distributed.

Referring to fig. 6, in an embodiment of the present application, the second partition 193 and the portion of the guide plate 17 corresponding to the cover 19 are disposed opposite to each other.

In this embodiment, the second partition 193 and the first plate 171 or the third plate 175 in the guide plate 17 are disposed opposite to each other, so that the second through holes 195 on the second partition 193 and the first through holes 112 on the guide plate 17 have the same orientation, thereby facilitating noise entering into each sub-cavity 131 to reduce noise.

Referring to fig. 6 and fig. 7 in combination, in an embodiment of the present application, the second via 195 and the first via 112 are disposed in a one-to-one correspondence.

In this embodiment, the second via 195 on the second partition 193 and the first via 112 on the guide plate 17 may facilitate the passage of noise on the one hand, so as to perform noise reduction treatment thereon. On the other hand, the structure of the part can be relatively regular and the processing and the forming are convenient. Of course, the present application is not limited thereto, and in other embodiments, the second via 195 and the first via 112 may be disposed in a staggered manner.

In an embodiment of the present application, the noise reduction channel 11 and/or the noise reduction cavity 13 is/are provided with a first noise reduction layer.

The first noise reduction layer may be used for absorbing noise, and may be noise reduction cotton or noise reduction cloth, etc. The first noise reduction layer may be disposed on the inner surface of the noise reduction channel 11, the first noise reduction layer may be disposed on the inner surface of the noise reduction cavity 13, or the first noise reduction layers may be disposed on the inner surfaces of the noise reduction channel 11 and the noise reduction cavity 13.

In this embodiment, the first noise reduction layer is disposed in the noise reduction channel 11 and/or the noise reduction cavity 13, so that the noise can be further absorbed by the first noise reduction layer, thereby being beneficial to further improving the noise reduction effect on the noise.

Referring to fig. 1 to 7 in combination, the present utility model further provides a new energy device 100, where the new energy device 100 includes a machine body 20, a power module 30, a heat dissipating device 40, and a noise reduction structure 10, and the specific structure of the noise reduction structure 10 refers to the above embodiment. The new energy device 100 may be an energy storage cabinet, an inverter, a charging pile, or the like. The body 20 of the new energy equipment 100 is internally provided with a containing cavity 21, and the body 20 is also provided with an air inlet 23 and an air outlet 25 which are communicated with the containing cavity 21; the power module 30 is arranged in the accommodating cavity 21; the heat dissipating device 40 is disposed on the body 20, and can drive the air flow into the accommodating cavity 21 from the air inlet 23 and be discharged from the air outlet 25; the noise reduction channel 11 of the noise reduction structure 10 is communicated with the air inlet 23 and/or the air outlet 25. That is, the heat dissipating device 40 may be used for providing power to drive the external air flow into the machine body 20 from the air inlet 23, and then is discharged from the air outlet 25 after heat exchange with the power module 30 (as indicated by the dashed arrow in fig. 1, which is the flow path of the air flow). The heat sink 40 may be a heat dissipating fan, and may generate corresponding noise during operation, and the noise may be transmitted through the air inlet 23 or the air outlet 25. Accordingly, the noise reduction structure 10 described above may be provided on at least one of the air inlet 23 and the air outlet 25.

Referring to fig. 1 and fig. 2 in combination, in an embodiment of the application, the noise reduction structure 10 is disposed in the accommodating cavity 21 and is communicated with the air inlet 23.

In the present embodiment, the noise reduction structure 10 is disposed in the accommodating chamber 21, so that the protection effect thereof can be improved. Further, since the heat dissipating device 40 generally adopts an air-extracting type heat dissipating fan, the heat generated by the power module 30 during operation can be better extracted by disposing the heat dissipating device 40 at the air outlet 25. At this time, the noise reduction structure 10 is disposed at one side of the air inlet 23, so that a space is conveniently provided for the noise reduction structure.

Referring to fig. 1 and fig. 3 in combination, in an embodiment of the present application, it is defined that the body 20 has an up-down direction, and the air inlet 23 and the air outlet 25 are disposed on a side wall of the body 20; the new energy device 100 further comprises an air inlet structure 50 and an air outlet structure 60, wherein the air inlet structure 50 and the air outlet structure 60 are arranged on the outer side of the machine body 20 and extend along the up-down direction; the side walls of the air inlet structure 50 and the air outlet structure 60 are respectively provided with an air passing opening 51 communicated with the air inlet 23 and the air outlet 25, and the lower ends of the air inlet structure 50 and the air outlet structure 60 are respectively provided with a communication opening 52.

In this embodiment, the air inlet structure 50 and the air outlet structure 60 extending in the vertical direction enable the new energy device 100 to integrally form a ventilation mode of bottom upward air inlet, horizontal air supply and bottom downward air outlet, so that the transmission path of sound waves can be effectively prolonged, and the reflection times of the sound waves in the air inlet structure 50 and the air outlet structure 60 can be increased, thereby being beneficial to improving the noise reduction effect on the new energy device 100.

Referring to fig. 10 to 13 in combination, in an embodiment of the present application, the air inlet structure 50 and the air outlet structure 60 are both provided with a main air duct 53 and a silencing cavity 54, and the main air duct 53 is arranged to extend in the up-down direction and is provided with an air passing port 51 and a communication port 52; the silencing cavity 54 is arranged at the outer side of the main body channel, and a plurality of third through holes 531 which are communicated with the main body channel 53 and the silencing cavity 54 are further formed in the side wall of the main body channel 53.

In this embodiment, by providing the air intake structure 50 and the air outlet structure 60 with the silencing cavities 54, when the noise transferred into the main air duct 53 passes through the third perforation, the sound wave vibrates vigorously due to resonance and rubs with the air in the third through hole 531, so that part of the sound energy is converted into heat energy and absorbed, thereby achieving the noise reduction effect. Meanwhile, abrupt change of the sectional area of the channel occurs at the communication position of the third through hole 531 and the silencing cavity 54, so that the impedance of sound waves of noise is not matched to be reflected, the intensity of the noise is attenuated, and noise is reduced again. Thus, the sound deadening chamber 54 has a dual function of absorbing and eliminating noise and reflecting and attenuating noise. By providing the air intake structure 50 and the air outlet structure 60 with the main body air duct 53 and the silencing chamber 54 in this way, the noise reduction effect on the new energy device 100 can be further improved.

Referring to fig. 10 to 12 in combination, in an embodiment of the present application, each of the air inlet structure 50 and the air outlet structure 60 includes an outer housing 55, a shroud 56 and a shroud 57; one end of the outer shell 55 is provided with an opening and covers the outer side of the air inlet 23 or the air outlet 25, and the bottom wall of the outer shell 55 is provided with a communication port 52; the coaming 56 is arranged in the outer shell 55 and extends along the up-down direction, the coaming 56 encloses to form a main body air duct 53, and an air passing port 51 is arranged; the cover plate is arranged on the outer side of the coaming 56 and is enclosed with the coaming 56 to form a silencing cavity 54, and the coaming 56 is provided with a third via hole 531.

The outer casing 55 may be a cover structure having an opening at one end and covers the outer sides of the air inlet 23 and the air outlet 25. The coaming 56 may enclose a main air duct 53 extending in the up-down direction, where a cross section of the coaming 56 may be trapezoidal, square, circular, or other shapes. Meanwhile, the coaming 56 is further provided with air vents 51 penetrating through the inner side and the outer side of the coaming, and the number of the air vents 51 can be one or at least two. The cover plate may be a cover structure having an opening at one end and covering the outside of the shroud 56 where the third via 531 is provided.

In this embodiment, the air intake structure 50 and the air outlet structure 60 are formed by the outer casing 55, the coaming 56 and the enclosure cover 57, so that each part of the air intake combination and the air outlet structure 60 can be manufactured independently, and then each part is assembled to form a whole to form the main body air duct 53 and the sound absorbing cavity. At this time, the split outer housing 55, the coaming 56 and the enclosure cover 57 are relatively simple in structure, so that convenience in processing and forming the air inlet structure 50 and the air outlet structure 60 is improved. Of course, the present application is not limited to this, and in the embodiment, the air inlet structure 50 and the air outlet structure 60 are only provided with the pipe extending in the up-down direction, and the sound absorbing cavity is not provided.

Referring to fig. 12, in an embodiment of the present application, the number of the silencing cavities 54 is at least two, and at least two silencing cavities 54 are sequentially disposed along the up-down direction.

In this embodiment, by providing at least two silencing chambers 54, noise reduction processing can be performed on the transmitted noise through the at least two silencing chambers 54, so that noise reduction effect on the noise can be further improved.

In an embodiment of the present application, the second silencing layer is adhered to the air inlet structure 50 and/or the air outlet structure 60.

The second noise damping layer may be used to absorb noise, and may be noise damping cotton or noise damping cloth. The second silencing layer may be disposed on the inner surface of the air intake structure 50, the second silencing layer may be disposed on the inner surface of the air outlet structure 60, or the second silencing layers may be disposed on the inner surfaces of the air intake structure 50 and the air outlet structure 60. Further, the second silencing layer may be disposed in the main air duct 53 of the air intake structure 50 and/or the air outlet structure 60, or may be disposed in the sound absorbing cavity of the air intake structure 50 and/or the air outlet structure 60.

In this embodiment, the second silencing layer is disposed in the air inlet structure 50 and/or the air outlet structure 60, so that the noise can be further absorbed by the second silencing layer, thereby further improving the noise reduction effect.

In one embodiment of the present application, a grille structure is provided at the air inlet 23 and/or the air outlet 25.

The grid structure can also be a net structure with through holes, wherein the net structure is formed by surrounding a plurality of transverse rods and/or vertical rods. The grille structure may be provided only at the air inlet 23, only at the air outlet 25, or both at the air inlet 23 and the air outlet 25.

In this embodiment, the grille structure can play a role in shielding and protecting the air inlet 23 and/or the air outlet 25, so as to reduce the possibility of damage to the new energy device 100 caused by foreign objects entering the new energy device 100 from the grille structure.

Referring to fig. 2 and 3 in combination, in an embodiment of the present application, a side wall of a machine body 20 is provided with two mounting openings 27, a door body 29 is provided at the two mounting openings 27, and the two door bodies 29 can be opened or cover the two mounting openings 27 respectively when rotating relative to the machine body 20; one of the two door bodies 29 is provided with an air inlet 23, and the other is provided with an air outlet 25; the air inlet 23 structure and the noise reduction structure 10 are respectively arranged on the outer side and the inner side of the door body 29 provided with the air inlet 23, and the air outlet structure 60 and the heat dissipation device 40 are respectively arranged on the outer side and the inner side of the door body 29 provided with the air outlet 25.

In this embodiment, by arranging the two bodies rotatably, when the power module 30 or other devices in the new energy device 100 are damaged, the door 29 can be opened by rotation, so that convenience in maintenance of the new energy device 100 is improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (17)

1. The noise reduction structure is characterized by being provided with a noise reduction channel and noise reduction cavities, wherein two ends of the noise reduction channel are provided with openings, and the noise reduction channel is provided with at least two expansion cavities along the extending direction of the noise reduction channel;

the outer side of at least one expansion cavity is provided with the noise reduction cavity, and the cavity wall of the expansion cavity is also provided with a plurality of first through holes communicated with the noise reduction cavity.

2. The noise reduction structure according to claim 1, wherein the noise reduction channel includes a first channel, a second channel, and a third channel which are sequentially communicated, the channel sectional areas of the first channel and the third channel are smaller than the sectional area of the second channel, the second channel is formed as one expansion cavity, and the noise reduction cavity is provided on the outer side of the second channel;

And the inner sides of the first channel and the third channel are respectively provided with a first baffle plate so as to separate the first channel and the third channel respectively to form at least one expansion cavity.

3. The noise reducing structure of claim 2, wherein the noise reducing structure comprises:

an outer frame body;

the at least two guide plates are arranged in the outer frame body at intervals in sequence along a direction, and the at least two guide plates and the outer frame body are enclosed to form the second channel; and

the at least four cover covers are arranged in an opening way at one end, each two cover covers are respectively connected to the opposite ends of one guide plate, the two cover covers and the guide plate are enclosed to form the noise reduction cavity, and the guide plate is provided with the first through hole;

the two cover covers located at one end of the second channel and the outer frame body enclose to form the first channel, the two cover covers located at the other end of the second channel and the outer frame body enclose to form the third channel, and the cover covers are provided with the first partition plates.

4. The noise reduction structure according to claim 3, wherein the guide plate comprises a first plate body, a second plate body and a third plate body which are sequentially connected, the second plate body, the first plate body and the third plate body are arranged in an included angle, and the first plate body and the third plate body are arranged in an extending manner along a back-to-back direction;

The second plate body and the third plate body in each guide plate, the second plate body and the third plate body in the adjacent guide plates and the outer frame body are enclosed to form the second channel, and the first plate body and the third plate body are provided with the cover.

5. The noise reducing structure according to claim 4, wherein the first plate body, the second plate body and the third plate body are each provided in a flat plate shape;

and/or the first plate body, the second plate body and the third plate body are arranged in an integrated structure;

and/or the guide plate further comprises a fourth plate body, wherein at least one of the first plate body, the second plate body and the third plate body is provided with the fourth plate body, and the fourth plate body is attached to the outer frame body and connected with the outer frame body;

and/or the two opposite ends of the outer frame body are arranged in an opening way.

6. The noise reducing structure according to any one of claims 3 to 5, wherein the first partition plates are provided on opposite surfaces of two of the cover caps located at the same end of the second passage, and the first partition plates on the two of the cover caps are disposed opposite to each other;

And/or at least two first partition boards are arranged on the cover, and the at least two first partition boards are sequentially arranged at intervals along the airflow direction of the first channel or the third channel so as to separate the first channel and the third channel to form at least two expansion cavities;

and/or the first partition plate and the cover are arranged in an integrated structure;

and/or one side of the cover close to the guide plate is provided with a fixed plate, and the fixed plate is attached to the guide plate and connected with the guide plate.

7. The noise reduction structure according to any one of claims 3 to 5, wherein a second partition plate is arranged in the cover, the second partition plate separates the noise reduction cavity to form at least two subchambers, and the second partition plate is provided with a plurality of second through holes communicated with two adjacent subchambers.

8. The noise reducing structure according to claim 7, wherein the second partition plate and the guide plate are disposed opposite to each other with respect to the portion of the cover.

9. The noise reduction structure of claim 8, wherein the second via and the first via are arranged in a one-to-one correspondence;

Or the second via hole and the first via hole are arranged in a dislocation mode.

10. The noise reduction structure according to claim 7, wherein the number of the second partition plates is at least two, and at least two second partition plates are sequentially arranged at intervals along a direction in the noise reduction cavity so as to partition the noise reduction cavity into at least two subchambers;

and/or, the second via hole is a round hole or a square hole.

11. The noise reduction structure according to any one of claims 1 to 5, wherein a first noise reduction layer is attached to the noise reduction channel and/or the noise reduction cavity;

and/or, the first via hole is a round hole or a square hole.

12. A new energy device, characterized by comprising:

the machine body is internally provided with a containing cavity, and is also provided with an air inlet and an air outlet which are communicated with the containing cavity;

the power supply module is arranged in the accommodating cavity;

the heat dissipation device is arranged on the machine body, can drive air flow to enter the accommodating cavity from the air inlet and is discharged through the air outlet; and

noise reducing structure, the noise reducing structure is according to any one of claims 1 to 11, and the noise reducing channel of the noise reducing structure is communicated with the air inlet and/or the air outlet.

13. The new energy device of claim 12, wherein the noise reduction structure is disposed in the accommodating cavity and is communicated with the air inlet.

14. The new energy device of claim 13, wherein said body is defined to have an up-down direction, said air inlet and said air outlet being provided in a side wall of said body;

the new energy equipment further comprises an air inlet structure and an air outlet structure, wherein the air inlet structure and the air outlet structure are arranged on the outer side of the machine body and extend in the up-down direction;

the side wall of the air inlet structure and the side wall of the air outlet structure are respectively provided with an air passing port communicated with the air inlet and the air outlet, and the lower ends of the air inlet structure and the air outlet structure are respectively provided with a communication port.

15. The new energy device of claim 14, wherein the air inlet structure and the air outlet structure are provided with a main body air duct and a silencing cavity, and the main body air duct is arranged in an extending manner along the up-down direction and is provided with the air passing port and the communication port;

the silencing cavity is arranged on the outer side of the main body air duct, and a plurality of third through holes which are communicated with the main body air duct and the silencing cavity are further formed in the side wall of the main body air duct.

16. The new energy device of claim 15, wherein said air intake structure and said air outlet structure each comprise an outer housing, a shroud, and a containment hood; one end of the outer shell is provided with an opening and is covered on the outer side of the air inlet or the air outlet, and the bottom wall of the outer shell is provided with the communication port; the coaming is arranged in the outer shell and extends in the up-down direction, the coaming encloses the main body air channel and is provided with the air passing opening; the enclosing cover is arranged on the outer side of the enclosing plate and encloses the enclosing plate to form the silencing cavity, and the enclosing plate is provided with the third through hole;

and/or the number of the silencing cavities is at least two, and at least two silencing cavities are sequentially arranged along the up-down direction.

17. The new energy device of any one of claims 14 to 16, wherein a second sound attenuation layer is attached to the air inlet structure and/or the air outlet structure;

and/or the air inlet and/or the air outlet are provided with a grid structure;

and/or the side wall of the machine body is provided with two mounting openings, the two mounting openings are provided with door bodies, and the two doors can be respectively opened or covered on the two mounting openings when rotating relative to the machine body; one of the two door bodies is provided with the air inlet, and the other door body is provided with the air outlet; the air inlet structure and the noise reduction structure are respectively arranged on the outer side and the inner side of the door body provided with the air inlet, and the air outlet structure and the heat dissipation device are respectively arranged on the outer side and the inner side of the door body provided with the air outlet.