Noise reduction ventilation plate and charging equipment

Abstract

The utility model discloses a noise reduction ventilation plate and charging equipment, the noise reduction ventilation plate comprises a plurality of waved plates, and the waved plates are sequentially connected in a first direction and are of a waved structure; in every two adjacent waved plates, in the second direction, the wave crest of one waved plate and the wave crest of the other waved plate are staggered, and the second direction intersects with the first direction. The wave crests and the wave troughs of the adjacent waved plates can be overlapped, so that the through holes are formed, the noise reduction ventilation plate is in a complete shape, air flow can flow between the two sides of the noise reduction ventilation plate in the third direction through the through holes, noise can penetrate through the noise reduction ventilation plate through the through holes only after being reflected for multiple times after penetrating through the noise reduction ventilation plate, and the noise reduction effect is improved. Energy of noise is continuously attenuated in the multiple reflection process, and noise reduction is achieved; when the noise reduction ventilation plate is installed at the air inlet of the charging pile, normal air inlet of the air inlet can be guaranteed, noise transmitted by the cooling fan from the air inlet can be greatly weakened, and use is more convenient.

Description

Technical Field

[0001] This application relates to the field of noise reduction technology, and particularly to a noise reduction ventilation plate and a charging device. Background Art

[0002] A charging pile is a charging device that provides direct current power for an electric vehicle battery. When the charging pile is charging, the internal fan will dissipate heat from the charging module.

[0003] Generally, an air inlet will be opened at the place where the charging pile cabinet is closest to the fan for air intake. However, the noise generated when the fan works will be transmitted through the air inlet, resulting in a poor user experience. Utility Model Content

[0004] The main purpose of this application is to provide a noise reduction ventilation plate and a charging device, aiming to solve the problem that the noise generated when the fan works is transmitted through the air inlet, making it inconvenient to use.

[0005] To achieve the above object, this application provides a noise reduction ventilation plate, which includes multiple corrugated plates connected in sequence in a first direction and all parallel to the first direction. Each of the corrugated plates has a corrugated structure. Among them, in a second direction, the peak of one corrugated plate is offset from the peak of another adjacent corrugated plate, so that the peak of one corrugated plate overlaps with the trough of another corrugated plate to form a through hole, and the second direction intersects with the first direction.

[0006] Optionally, in two adjacent corrugated plates, the peak of one corrugated plate corresponds to the trough of the other corrugated plate.

[0007] Optionally, the corrugated plate has multiple unit plates connected end to end in the second direction, and two adjacent unit plates form the peak or trough of the corrugated plate.

[0008] Optionally, the included angle between adjacent unit plates 11 is between 60° and 120°.

[0009] Optionally, the structures of all the unit plates are the same, and the included angle between adjacent unit plates is 90°.

[0010] In addition, to achieve the above object, an embodiment of this application also provides a charging device, which includes the above-mentioned noise reduction ventilation plate, a cabinet body, and a charging module. An air inlet is provided on the cabinet body, and the noise reduction ventilation plate is disposed at the air inlet and inside the cabinet body. Among them, the noise reduction ventilation plate covers the air inlet; the charging module is disposed inside the cabinet body, and a heat dissipation fan is provided on one side of the charging module.

[0011] Optionally, the cabinet body has a first side plate, a second side plate, and a third side plate connected in sequence, and the first side plate and the third side plate are arranged opposite to each other; wherein, the first side plate, the second side plate, and the third side plate are all parallel to the height direction of the cabinet body.

[0012] Optionally, the cooling fan is arranged on the side of the charging module facing the first side plate; the air inlet is arranged on the first side plate.

[0013] Optionally, the cooling fan is located on the side of the charging module facing the first side plate; the air inlet is located on the second side plate.

[0014] Optionally, the air inlet and the charging module are arranged offset in the height direction of the cabinet body.

[0015] A noise reduction ventilation plate proposed in an embodiment of the present application, the third direction is perpendicular to the plane formed by the first direction and the second direction, each corrugated plate has a wave crest and a wave trough, taking one side of the corrugated plate in the third direction as a reference, the convex part on this side is recorded as the wave crest, and the concave part is recorded as the wave trough. Among adjacent two corrugated plates, in the second direction, the wave crest of one corrugated plate is offset from the wave crest of the other corrugated plate. In this way, the wave crests and wave troughs of adjacent corrugated plates will overlap, thereby forming through holes, and the through holes communicate with both sides of the noise reduction ventilation plate in the third direction; the noise reduction ventilation plate is in a complete shape in the third direction, and the air flow can flow between both sides of the noise reduction ventilation plate in the third direction through the through holes. The noise needs to be reflected multiple times to pass through the noise reduction ventilation plate through the through holes, and the energy of the noise continues to decay during the multiple reflection process, realizing noise reduction; when the noise reduction ventilation plate is installed at the air inlet of the charging pile, it can not only ensure the normal air intake of the air inlet, but also greatly weaken the noise transmitted from the air inlet by the cooling fan, making it more convenient to use. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a noise reduction ventilation plate provided by an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the structure of another perspective of a noise reduction ventilation plate provided by an embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the overall structure of a charging device provided by an embodiment of the present application;

[0019] Figure 4 For Figure 3 The sectional structure schematic of the embodiment in Figure 1 ;

[0020] Figure 5Schematic structural diagram of another perspective of a charging device provided by an embodiment of the present application;

[0021] Figure 6 is Figure 3 Schematic cross-sectional structure of the embodiment in Figure 2 ;

[0022] Figure 7 Schematic diagram of the internal structure of the cabinet of a charging device provided by an embodiment of the present application.

[0023] In the figure: 1, corrugated board; 11, unit board; 2, cabinet; 21, air inlet; 22, first side plate; 23, second side plate; 24, third side plate; 25, air outlet; 3, charging module; 31, cooling fan; 4, partition board.

[0024] The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 It is a schematic diagram of the overall structure of a noise reduction ventilation plate provided by an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of another perspective of a noise reduction ventilation plate provided by an embodiment of the present application; Figure 3 It is a schematic diagram of the overall structure of a charging device provided by an embodiment of the present application; Figure 4 is Figure 3 the schematic cross-sectional structure of the embodiment in Figure 1 ; Figure 5 It is a schematic diagram of the structure of another perspective of a charging device provided by an embodiment of the present application; Figure 6 is Figure 3 the schematic cross-sectional structure of the embodiment in Figure 2 ; Figure 7 It is a schematic diagram of the internal structure of the cabinet of a charging device provided by an embodiment of the present application.

[0031] Referring to Figures 1 - 2 , an embodiment of the present application provides a noise reduction ventilation plate. The noise reduction ventilation plate may include a plurality of corrugated plates 1, which are sequentially connected in a first direction and are all parallel to the first direction. Each corrugated plate 1 has a corrugated structure; wherein, among two adjacent corrugated plates 1, in a second direction, the peak of one corrugated plate 1 is offset from the peak of the other corrugated plate 1, so that the peak of one corrugated plate 1 overlaps with the valley of the other corrugated plate 1 to form a through hole, and the second direction intersects with the first direction.

[0032] A noise reduction ventilation board proposed in an embodiment of the present application. The third direction is perpendicular to the plane formed by the first direction and the second direction. Each corrugated board 1 has a wave crest and a wave trough. Taking one side of the corrugated board 1 in the third direction as a reference, the convex part on this side is denoted as the wave crest, and the concave part is denoted as the wave trough. In two adjacent corrugated boards 1, in the second direction, the wave crest of one corrugated board 1 is staggered from the wave crest of the other corrugated board 1. Thus, the wave crests and wave troughs of adjacent corrugated boards 1 will overlap, thereby forming through holes, and the through holes communicate with both sides of the noise reduction ventilation board in the third direction; the noise reduction ventilation board is in a complete shape in the third direction, and the air flow can flow between both sides of the noise reduction ventilation board in the third direction through the through holes. The noise needs to be reflected multiple times to pass through the noise reduction ventilation board through the through holes, and the energy of the noise continuously decays during the multiple reflection processes, achieving noise reduction; when the noise reduction ventilation board is installed at the air inlet of the charging pile, it can not only ensure the normal air intake of the air inlet, but also greatly weaken the noise transmitted from the air inlet by the cooling fan, making it more convenient to use.

[0033] Specifically, as Figure 1 shown, the first direction is the X direction, and the second direction is the Y direction; the noise reduction ventilation board is in a complete shape in the third direction, which can be understood as observing the noise reduction ventilation board along the third direction, the noise reduction ventilation board is closed, and sound waves can hardly pass through the noise reduction ventilation board along the third direction.

[0034] It should be noted that the noise reduction ventilation board in the present application can be formed by injection molding, which is suitable for mass production, and the produced noise reduction ventilation boards have consistent sizes and small tolerances.

[0035] Refer to Figure 1 , in an exemplary embodiment, in two adjacent corrugated boards 1, the wave crest of one corrugated board 1 corresponds to the wave trough of the other corrugated board 1.

[0036] It should be understood that the wave crest of one corrugated board 1 is opposite to the wave trough of the other corrugated board 1, that is, their positions in the first direction X correspond. In the second direction Y, the greater the distance by which the wave crest of one corrugated board 1 is staggered from the wave crest of the adjacent corrugated board 1, the larger the cross-sectional area of the through hole in the direction perpendicular to the first direction X, that is, the greater the ventilation volume of the through hole. When the wave crest of one corrugated board 1 corresponds to the wave trough of the adjacent corrugated board 1, in other words, when the wave crest of one corrugated board 1 coincides with the wave trough of the adjacent corrugated board 1 in the second direction Y, the cross-sectional area of the through hole formed by the overlap of the wave crest and the wave trough here reaches the maximum in the direction perpendicular to the first direction X, that is, the ventilation volume of the through hole reaches the maximum.

[0037] Among them, the staggering distance refers to the minimum distance between the wave crests of two adjacent corrugated boards 1 in the second direction.

[0038] In the embodiments of the present application, the peaks and valleys of two adjacent corrugated plates 1 correspond to each other. In this way, in the third direction, the corrugated plate 1 remains in a closed state, and at the same time, the ventilation volume of the corrugated plate 1 reaches the maximum, which can not only ensure the noise reduction effect but also meet the ventilation requirements.

[0039] Reference Figure 1 , in an exemplary embodiment, the corrugated plate 1 has a plurality of unit plates 11 connected end to end in the second direction. Two adjacent unit plates 11 form a peak or a valley of the corrugated plate 1.

[0040] Specifically, as Figure 1 shown, within a corrugated plate 1, a plurality of unit plates 11 are sequentially connected in the second direction Y, and the second direction Y can be the length direction of the corrugated plate 1. In this way, the more the number of unit plates 11 within the same corrugated plate 1, the longer the length of the corrugated plate 1, and the larger the planar projection area of the noise reduction ventilation plate in the plane perpendicular to the third direction; similarly, the more the number of corrugated plates 1 within the noise reduction ventilation plate, the larger the planar projection area of the noise reduction ventilation plate in the plane perpendicular to the third direction.

[0041] It should be understood that within one corrugated plate 1, its peaks and valleys are alternately arranged in the second direction Y. In this way, among three sequentially connected unit plates 11, there must be a peak of the corrugated plate 1 and an adjacent valley.

[0042] Reference Figure 1 and Figure 2 , in an exemplary embodiment, the included angle between two adjacent unit plates 11 is between 60° and 120°, for example, it can be: 60°, 70°, 90°, 100°, 110°, 120°, etc.

[0043] In a preferred embodiment of the present application, the structures of all unit plates 11 are the same, and the included angle between two adjacent unit plates 11 can specifically be 90°.

[0044] Specifically, when the included angle between two adjacent unit plates 11 is 90°, sound waves will be reflected and scattered multiple times when encountering the structure with alternating peaks and valleys. The energy of the sound waves can be effectively dispersed, reducing its ability to propagate in a straight line, thereby reducing the intensity of the noise. Especially for high-frequency sounds, multiple reflections can significantly reduce their energy.

[0045] In addition, due to the angles formed between each unit plate 11, sound waves cannot directly penetrate but are forced to bypass more obstacles, which helps to increase the absorption of sound waves in the material. The sound-absorbing material can absorb part of the sound wave energy, thereby further reducing the amount of noise transmitted to the other side.

[0046] Furthermore, the 90° angle can also enhance the overall structural stability of the corrugated board 1. This geometric shape can provide better mechanical support, making the corrugated board 1 less likely to deform when subjected to external pressure or wind force.

[0047] Reference Figures 1 - 7 , based on the above embodiments, the embodiment of the present application further provides a charging device, which may include the above noise reduction ventilation board, the cabinet 2 and the charging module 3. An air inlet 21 is provided on the cabinet 2, and the noise reduction ventilation board is disposed at the air inlet 21 and inside the cabinet 2, wherein the noise reduction ventilation board covers the air inlet 21; the charging module 3 is disposed inside the cabinet 2, and a cooling fan 31 is provided on one side of the charging module 3.

[0048] Specifically, when the cooling fan 31 operates, it will generate noise. When the noise reduction ventilation board is installed at the air inlet 21, the noise generated by the cooling fan 31 needs to be reflected and absorbed multiple times before it can pass through the noise reduction ventilation board and reach the air inlet 21. The energy of the noise continuously decays during the multiple reflections and absorptions, and finally the noise reduction of the charging device is realized. At the same time, on the basis of noise reduction, the noise reduction ventilation board will not affect the normal air intake of the air inlet 21, making it more convenient to use.

[0049] It should be understood that the size of the coverage area of the noise reduction ventilation board on the cabinet 2 can be adjusted according to the number of the spliced corrugated boards 1. For example, Figure 1 as shown, the longer the length of a single corrugated board 1, the more corrugated boards 1 the noise reduction ventilation board contains, and the larger the coverage area. The specific coverage area of the noise reduction ventilation board can be selected according to the actual situation. For example, the noise reduction ventilation board should cover the air inlet 21.

[0050] Among them, the length of the corrugated board 1 refers to the length of the corrugated board 1 in the second direction Y. In addition, when the corrugated board 1 is installed on a certain plate, the third direction can be perpendicular to the corresponding plate, so that it is convenient to install the corrugated board 1 and the noise reduction effect is good. And at this time, the projection of the noise reduction ventilation board along the third direction on the corresponding plate covers the air inlet 21.

[0051] It should be noted that, as Figure 6 shown, when installing the noise reduction ventilation board, a ring-shaped protrusion can be first provided on the plate where the air inlet 21 is located, and the air inlet 21 is located inside the protrusion. In this way, the noise reduction ventilation board can be connected to the side of the protrusion away from the corresponding plate, and the noise reduction ventilation board only needs to cover the protrusion. In this way, the noise is blocked by the protrusion and cannot bypass the noise reduction ventilation board and reach the air inlet 21, ensuring that the noise needs to be reflected and absorbed multiple times before it can pass through the noise reduction ventilation board and reach the air inlet 21, further ensuring the noise reduction effect of the noise reduction ventilation board.

[0052] Reference Figures 3 - 7, in an exemplary embodiment, the cabinet body 2 has a first side plate 22, a second side plate 23, and a third side plate 24 that are sequentially connected. The first side plate 22 and the third side plate 24 are oppositely arranged; wherein, the first side plate 22, the second side plate 23, and the third side plate 24 are all parallel to the height direction of the cabinet body 2.

[0053] Specifically, if Figure 3 is the front of the charging device, then the first side plate 22 is the right side plate of the charging device, the second side plate 23 is the back plate of the charging device, and the third side plate 24 is the left side plate of the charging device.

[0054] As Figure 5 shown in Figure 7 , both the first side plate 22 and the third side plate 24 can be the cabinet doors of the cabinet body 2, and the first side plate 22 and the third side plate 24 can be rotated around the height direction of the cabinet body 2 to open the cabinet body 2.

[0055] In an exemplary embodiment, the cooling fan 31 is disposed on the side of the charging module 3 facing the first side plate 22; the air inlet 21 is disposed on the first side plate 22.

[0056] It should be understood that there are three schemes here. In the height direction of the cabinet body 2, in Scheme 1, the air inlet 21 is located above the cooling fan 31; in Scheme 2, the air inlet 21 and the cooling fan 31 are directly opposite in the direction perpendicular to the first side plate 22; in Scheme 3, the air inlet 21 is located below the cooling fan 31.

[0057] Among them, Scheme 1 and Scheme 3 are similar. In both cases, the air inlet 21 is misaligned with the cooling fan 31 in the third direction. In this way, the noise emitted by the cooling fan 31 needs to be reflected and absorbed multiple times before reaching the vicinity of the air inlet 21, and then passes through the noise reduction ventilation plate and exits from the air inlet 21. During the process of the noise passing through the noise reduction ventilation plate, it also needs to be reflected and absorbed multiple times, thus achieving noise reduction.

[0058] It should be noted that when the air inlet 21 is located above the cooling fan 31, the overall center of gravity of the charging device is lower and it is more stable during use; when the air inlet 21 is located below the cooling fan 31, the air inlet 21 is closer to the ground, and the noise emitted from the air inlet 21 will be further absorbed and reflected by the ground, thereby further reducing the noise generated when the cooling fan 31 works, and the noise reduction effect is good.

[0059] In addition, for Scheme 2, in the direction perpendicular to the first side plate 22, that is, in the third direction, the air inlet 21 and the cooling fan 31 are directly opposite. In other words, the noise reduction ventilation plate and the cooling fan 31 are directly opposite. At this time, when the noise is transmitted to the noise reduction ventilation plate, it will be reflected and absorbed multiple times, and the noise energy will be greatly attenuated, and finally passes through the through holes of the noise reduction ventilation plate, thus achieving noise reduction.

[0060] Refer toFigure 6 and Figure 7 In an exemplary embodiment, the heat dissipation fan 31 is located on a side of the charging module 3 facing the first side plate 22 ; the air inlet 21 is located on the second side plate 23 .

[0061] Specifically, the air inlet 21 is located on the second side panel 23, and the heat dissipation fan 31 is located on the side of the charging module 3 facing the first side panel 22, and there is an angle between the first side panel 22 and the second side panel 23, and the angle can be 90°, that is, the first side panel 22 is perpendicular to the second side panel 23, so that the noise emitted by the heat dissipation fan 31 is mainly directed toward the first side panel 22, and the noise needs to be reflected and absorbed multiple times before it can reach the air inlet 21 on the second side panel 23, and then it needs to be reflected and absorbed multiple times before it can pass through the through hole to reach the air inlet 21, so that the energy of the noise is greatly reduced, and the noise reduction effect is good.

[0062] refer to Figure 6 and Figure 7 In a preferred embodiment, the air inlet 21 and the charging module 3 are staggered in the height direction of the cabinet 2 .

[0063] Specifically, Figure 6 and Figure 7 As shown, in the height direction of the cabinet 2, the air inlet 21 is located below the charging module 3. In other words, the air inlet 21 is located below the heat dissipation fan 31. This greatly increases the noise propagation path and the number of reflections of the noise propagating to the air inlet 21, thereby further attenuating the noise energy. On the basis of the air inlet 21 being arranged on the second side panel 23, the air inlet 21 and the charging module 3 are staggered in the height direction of the cabinet 2, thereby further improving the noise reduction effect.

[0064] It should be understood that, here, the air inlet 21 can be located below or above the charging module 3. When the air inlet 21 is located above the charging module 3, the overall center of gravity of the charging device is lower and it is more stable when in use. When the air inlet 21 is located below the charging module 3, the air inlet 21 is closer to the ground, and the noise transmitted from the air inlet 21 will be further absorbed and reflected by the ground, thereby further reducing the noise generated by the cooling fan 31 when it is working, and the noise reduction effect is good.

[0065] refer to Figure 5 In an exemplary embodiment, a side of the charging module 3 close to the third side panel 24 is an exhaust port, and the heat dissipation fan 31 blows the air flow into the interior of the charging module 3 and discharges it from the exhaust port; at the same time, an air outlet 25 is also provided on the cabinet 2, and the air outlet 25 and the air outlet can be connected through a tubular member, so that the hot air discharged from the exhaust port will not flow back to the heat dissipation fan 31, thereby ensuring the heat dissipation effect; at the same time, the noise of the heat dissipation fan 31 is also difficult to be discharged from the air outlet 25, thereby ensuring the noise reduction effect, and the air outlet 25 can be located on the third side panel 24.

[0066] Reference Figure 4 , in a preferred embodiment, the charging device may further include a partition plate 4, which is disposed in the cabinet 2 and divides the interior of the cabinet 2 into a first region and a second region; wherein, the air outlet 25 is located in the first region, the air inlet 21, the module 3 and the cooling fan 31 are all located in the second region, and the air exhaust port communicates with the first region.

[0067] It should be noted that, for the noise reduction structure, either this solution or the above solution of connecting the air outlet 25 and the air exhaust port through a tubular member can be selected.

[0068] Specifically, the partition plate 4 divides the first region and the second region. The air flow temperature entering the second region from the air inlet 21 is relatively low, while the air flow temperature discharged into the first region from the air exhaust port is relatively high. Therefore, when the noise reduction structure is used, the temperature of the second region is lower than that of the first region, and the charging module 3 is located in the second region, that is, the charging module 3 operates in a low-temperature region, so that the rotation speed of the cooling fan 31 during operation can be reduced. While ensuring the heat dissipation effect, the noise generated by the cooling fan 31 during operation can be further reduced.

[0069] It should be understood that the partition plate 4 can also ensure that the hot air flow discharged from the air exhaust port will not flow back to the cooling fan 31, thus not affecting the normal heat dissipation; at the same time, the partition plate 4 can block the noise generated by the cooling fan 31 from being discharged from the air outlet 25, thereby improving the noise reduction effect of the noise reduction structure.

[0070] Reference Figure 7 , in a preferred embodiment, there may be multiple charging modules 3, and the multiple charging modules 3 are spaced apart in the width direction and the height direction of the cabinet 2 within the cabinet 2, so as to form an air duct perpendicular to the first side plate 22 and an air duct parallel to the height direction of the cabinet 2 around the charging module 3.

[0071] Specifically, multiple air ducts are formed around the multiple charging modules 3, so that the contact area between the periphery of each charging module 3 and the air flow is greatly increased, further improving the heat dissipation effect of each charging module 3. In this way, the rotation speed of the cooling fan 31 during operation on each charging module 3 can be reduced. While ensuring the heat dissipation effect, the noise generated by the cooling fan 31 during operation can be further reduced.

[0072] It should be understood that the direction of the side of the cross-section of the cabinet 2 perpendicular to its height direction at the first side plate 22 is the width direction of the cabinet 2, and the direction of the side adjacent to this side is the length direction of the cabinet 2.

[0073] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A noise reduction ventilation panel, characterized in that: include: A plurality of corrugated plates (1) are connected in sequence in a first direction and are all parallel to the first direction, and each of the corrugated plates (1) is a corrugated structure; Among them, in two adjacent wave plates (1), the wave crest of one wave plate (1) is staggered with the wave crest of the other wave plate (1) in a second direction, so that the wave crest of one wave plate (1) and the wave trough of the other wave plate (1) overlap to form a through hole, and the second direction intersects with the first direction.

2. The noise reduction ventilation panel according to claim 1, characterized in that: In two adjacent wave plates (1), the wave crest of one wave plate (1) corresponds to the wave trough of the other wave plate (1).

3. The noise reduction ventilation panel according to claim 1, characterized in that: The corrugated plate (1) comprises a plurality of unit plates (11) connected end to end in the second direction, and two adjacent unit plates (11) constitute a wave crest or a wave trough of the corrugated plate (1).

4. The noise reduction ventilation panel according to claim 3, characterized in that: The included angle between adjacent unit plates (11) is between 60° and 120°.

5. The noise reduction ventilation panel according to claim 3, characterized in that: The structures of the unit plates (11) are all the same, and the angles between adjacent unit plates (11) are all 90°.

6. A charging device, characterized in that: include: The noise reduction ventilation panel according to any one of claims 1 to 5; A cabinet (2), wherein an air inlet (21) is provided on the cabinet (2), and the noise reduction ventilation plate is arranged at the air inlet (21) and is located inside the cabinet (2), wherein the noise reduction ventilation plate covers the air inlet (21); A charging module (3) is arranged in the cabinet (2), and a heat dissipation fan (31) is arranged on one side of the charging module (3).

7. The charging device according to claim 6, characterized in that: The cabinet (2) comprises a first side panel (22), a second side panel (23) and a third side panel (24) which are connected in sequence, and the first side panel (22) and the third side panel (24) are arranged opposite to each other; Wherein, the first side panel (22), the second side panel (23) and the third side panel (24) are all parallel to the height direction of the cabinet (2).

8. The charging device according to claim 7, characterized in that: The heat dissipation fan (31) is arranged on a side of the charging module (3) facing the first side plate (22); The air inlet (21) is arranged on the first side plate (22).

9. The charging device according to claim 7, characterized in that: The heat dissipation fan (31) is located on a side of the charging module (3) facing the first side plate (22); The air inlet (21) is located on the second side plate (23).

10. The charging device according to claim 9, characterized in that: The air inlet (21) and the charging module (3) are staggered in the height direction of the cabinet (2).

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