Noise reduction air inlet structure and charging equipment

Abstract

The utility model discloses a noise reduction air inlet structure and charging equipment, the noise reduction air inlet structure comprises a cabinet body, a cabinet door assembly and a partition assembly, and a module is arranged in the cabinet body; the cabinet door assembly is arranged on one side of the cabinet body and comprises a hollow first door plate, an air outlet is formed in the position, facing the module, of the first door plate, and the first door plate is arranged on one side, in the first direction, of the cabinet body; the first door plate comprises two side plates, the two side plates are oppositely arranged on the two sides of the first door plate in the second direction, first air inlets are formed in the two side plates, and the second direction intersects with the first direction. According to the air conditioner, noise can reach the first air inlet only after being reflected and absorbed in multiple directions, in this way, sound wave energy is greatly attenuated, and finally noise reduction is achieved on the premise that inlet air heat dissipation is guaranteed.

Description

Technical Field

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

[0002] A charging pile is a charging device that provides a DC power supply for an electric vehicle battery. When the charging pile is charging, the internal fan dissipates heat from the charging module.

[0003] In a traditional DC charging pile, an air inlet is opened at the position closest to the fan. The fan is usually arranged on the side of the charging module facing the cabinet door panel. Therefore, a large-area air inlet is often arranged on the cabinet door panel, which is convenient for air intake. However, the noise generated by the fan is very easy to spread out from the air inlet, making it inconvenient to use. Utility Model Content

[0004] The main purpose of this application is to provide a noise reduction air intake structure and a charging device, aiming to solve the problem that the noise generated by the fan is very easy to spread out from the air inlet, making it inconvenient to use.

[0005] To achieve the above object, this application provides a noise reduction air intake structure, which includes a cabinet body, a cabinet door assembly, and a partition assembly. A module is arranged inside the cabinet body; the cabinet door assembly is arranged on one side of the cabinet body. The cabinet door assembly includes a first door panel with a hollow interior. An air outlet is arranged on the side of the first door panel facing the module. The first door panel is arranged on one side of the cabinet body in a first direction; the first door panel includes two side plates, and the two side plates are oppositely arranged on both sides of the first door panel in a second direction. First air inlets are arranged on both of the two side plates. The second direction intersects with the first direction.

[0006] Optionally, the noise reduction air intake structure further includes a partition assembly. The partition assembly corresponds to the first air inlet and is arranged inside the first door panel. The partition assembly and the first door panel enclose a labyrinth channel. The two ends of the labyrinth channel respectively correspond to the first air inlet and the air outlet; wherein, there are two groups of partition assemblies, and they are oppositely arranged at each of the first air inlets in the second direction. In the second direction, the air outlet is located between the two groups of partition assemblies.

[0007] Optionally, the first door panel further includes a bottom plate. The bottom plate is arranged on one side of the first door panel in a third direction. A second air inlet is arranged on the bottom plate. The third direction intersects with the first direction and the second direction respectively.

[0008] Optionally, the first door panel further includes a back panel, the air outlet is arranged on the back panel, the partition assembly includes a first partition board and a second partition board, the first partition board is arranged opposite to the corresponding side panel in the second direction and is connected to the back panel, the second partition board is arranged on the side of the corresponding side panel facing the first partition board, and the first air inlet is located on the side of the second partition board facing the cabinet body; wherein, one side of the first partition board away from the back panel extends out of the plane where the second partition board is located along the first direction.

[0009] Optionally, the partition assembly further includes a first inclined plate, the first inclined plate is connected to one side of the first partition board away from the back panel and is inclined towards the corresponding side panel, the included angle between the first inclined plate and the first partition board is c, and 90° < c < 180°.

[0010] Optionally, the partition assembly further includes a second inclined plate, the second inclined plate is connected to one side of the second partition board away from the corresponding side panel and is inclined towards the corresponding back panel, the included angle between the second inclined plate and the second partition board is d, and 90° < d < 180°.

[0011] Optionally, the first door panel further includes a front panel, the front panel is arranged opposite to the back panel in the first direction; the noise reduction air inlet structure further includes a plurality of damping and vibration isolation sheets, and the plurality of damping and vibration isolation sheets are respectively arranged on one side where two first partition boards face each other and on the side of the front panel facing the back panel.

[0012] Optionally, the noise reduction air inlet structure further includes a plurality of sound-absorbing cotton, the plurality of sound-absorbing cotton corresponds to the plurality of damping and vibration isolation sheets one by one, and the sound-absorbing cotton is arranged on the side of the corresponding damping and vibration isolation sheet away from the first partition board or on the side of the corresponding damping and vibration isolation sheet away from the front panel.

[0013] Optionally, the noise reduction air inlet structure further includes a plurality of wire meshes, which are correspondingly arranged at the first air inlet, and the wire meshes are connected to the corresponding side panels.

[0014] Optionally, the noise reduction air inlet structure further includes a dust-proof cotton, and the dust-proof cotton is arranged at the air outlet and is connected to the first door panel.

[0015] Optionally, in the first direction, the module is opposite to the air outlet; the noise reduction air inlet structure further includes a noise reduction board, the noise reduction board is arranged at the air outlet and is connected to the first door panel; the noise reduction board includes a plurality of corrugated boards arranged in sequence in the fourth direction, each corrugated board is a corrugated structure and is parallel to the fourth direction, and the fourth direction intersects with the first direction; wherein, among two adjacent corrugated boards, the wave crest of one corrugated board corresponds to the wave valley of the other corrugated board.

[0016] Optionally, the cabinet door assembly further includes a second door panel, which is disposed opposite to the first door panel in a second direction and abuts against the first door panel. A first ventilation channel is provided in the second door panel, and the first ventilation channel has an air inlet end and an air outlet end; wherein, the air outlet end of the first ventilation channel is communicated with the first air inlet on the first door panel.

[0017] Optionally, there are two first door panels, and the two first door panels are disposed opposite to each other in the second direction; the cabinet door assembly further includes a third door panel, which is disposed between the two first door panels and abuts against the two first door panels. A second ventilation channel is provided in the third door panel, and the second ventilation channel has an air inlet end and two air outlet ends; wherein, the two air outlet ends of the second ventilation channel are respectively communicated with the first air inlets on the two first door panels.

[0018] In addition, to achieve the above object, an embodiment of the present application further provides a charging device, including the above noise reduction air intake structure.

[0019] For the noise reduction air intake structure proposed in the embodiment of the present application, the fan on the module can be disposed on the side of the module facing the air outlet. When the fan works, the inside of the first door panel is in a negative pressure state, and external air is pressed into the first air inlet and reaches the air outlet. The fan blows the air flow at the air outlet to the module inside the cabinet for heat dissipation; during this process, the noise generated when the fan works will first be transmitted to the air outlet, and then pass through the labyrinth channel and exit from the first air inlet. There is an included angle between the plate where the first air inlet is located and the plate where the air outlet is located. In this way, the noise needs to be reflected and absorbed multiple times before reaching the first air inlet, so the sound wave energy is greatly attenuated, and finally noise reduction is achieved on the premise of ensuring air intake and heat dissipation. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure when the cabinet door assembly in the embodiment of the present application includes the first door panel and the second door panel;

[0021] Figure 2 It is Figure 1 a schematic diagram of the structure from another perspective of the embodiment in

[0022] Figure 3 It is Figure 1 a sectional view of the embodiment in Figure 1 ;

[0023] Figure 4 It is Figure 1 a sectional view of the embodiment in Figure 2 ;

[0024] Figure 5Cross-sectional view of the first door panel and the second door panel of the embodiment of the present application;

[0025] Figure 6 is Figure 5 Enlarged view of the structure at position A in

[0026] Figure 7 Schematic diagram of the structural disassembly of the first door panel of the embodiment of the present application;

[0027] Figure 8 Schematic diagram of the overall structure of the cabinet door assembly including the first door panel and the third door panel in the embodiment of the present application;

[0028] Figure 9 is Figure 8 section of the embodiment in Figure 1 ;

[0029] Figure 10 is Figure 8 section of the embodiment in Figure 2 ;

[0030] Figure 11 Schematic diagram of the noise reduction plate structure of the embodiment of the present application.

[0031] In the figure: 1, cabinet body; 11, module; 2, first door panel; 21, first air inlet; 22, air outlet; 23, side plate; 24, bottom plate; 241, second air inlet; 25, back plate; 26, front plate; 31, first partition plate; 32, second partition plate; 33, first inclined plate; 34, second inclined plate; 4, damping vibration isolation sheet; 5, sound-absorbing cotton; 6, dust-proof cotton; 7, corrugated board; 8, second door panel; 81, first baffle; 9, third door panel; 91, second baffle.

[0032] The realization, functional features and advantages of the purpose of the present application will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0033] 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0034] 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.

[0035] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall 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 defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] 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 cannot be understood as indicating or implying their relative importance or implicitly indicating 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 solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. 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.

[0037] Referring to Figures 1 to 11 , an embodiment of the present application provides a noise reduction air intake structure, which may include a cabinet 1, a cabinet door assembly, and a partition assembly. A module 11 is arranged inside the cabinet 1; the cabinet door assembly is arranged on one side of the cabinet 1, and the cabinet door assembly may include a first door panel 2 with a hollow interior. An air outlet 22 is arranged on the side of the first door panel 2 facing the module 11. The first door panel 2 is arranged on one side of the cabinet 1 in a first direction; the first door panel 2 includes two side plates 23, and the two side plates 23 are oppositely arranged on both sides of the first door panel 2 in a second direction. First air inlets 21 are arranged on both of the two side plates 23, and the second direction intersects with the first direction.

[0038] A noise reduction air intake structure proposed in an embodiment of the present application. The fan on module 11 can be arranged on the side of module 11 facing the air outlet 22. When the fan works, a negative pressure state is formed inside the first door panel 2, and external air is pressed into the first air inlet 21 and reaches the air outlet 22 through the labyrinth channel. The fan blows the air flow at the air outlet 22 to module 11 inside the cabinet 1 for heat dissipation; during this process, the noise generated when the fan works will first be transmitted to the air outlet 22 and then spread out from the first air inlet 21. There is an angle between the plate where the first air inlet 21 is located and the plate where the air outlet 22 is located. In this way, the noise needs to be reflected and absorbed multiple times before reaching the first air inlet 21, so the sound wave energy is greatly attenuated, and finally noise reduction is achieved on the premise of ensuring air intake and heat dissipation.

[0039] It should be noted that the cabinet 1 has a first direction, a second direction, and a third direction. The first direction is the X direction and is the same as the width direction of the cabinet 1. The second direction is the Y direction and is the same as the length direction of the cabinet 1. The third direction is the Z direction and intersects with the first direction X and the second direction Y respectively; among them, the third direction Z can be the same as the gravity direction. When the first door panel 2 is in the closed state, the width direction of the cabinet 1, that is, the first direction X, is the same as the thickness direction of the first door panel 2.

[0040] Among them, the plate where the first air inlet 21 is located is the side plate 23. The angle between the side plate 23 and the plate where the air outlet 22 is located can be 90°. In this way, the noise generated by the fan needs to be reflected and absorbed multiple times before reaching the first air inlet 21, realizing noise reduction.

[0041] Specifically, as Figure 5 shown, the two side plates 23 are arranged opposite to each other in the second direction Y. In this way, there are two first air inlets 21. The size of the side plate 23 is much smaller than the size of the first door panel 2 facing the cabinet 1. Setting the first air inlets 21 on both side plates 23 can further increase the overall air intake volume of the first door panel 2.

[0042] It should be understood that the first air inlet 21 can be located on the side wall of the first door panel 2 that does not contact the cabinet 1.

[0043] Among them, as Figure 1 and Figure 4 shown, Figure 4 the direction indicated by the black arrow in the figure is the direction of air flow. The angle between the plate where the first air inlet 21 is located and the plate where the air outlet 22 is located can be 90°.

[0044] It should be understood that the fan on module 11 is arranged on the side of module 11 facing the air outlet 22. In addition, as Figure 4As shown, on the side of the cabinet body 1 facing away from the first door panel 2, there is an exhaust air chamber. The exhaust air chamber is communicated with the interior of the cabinet body 1. An exhaust air fan is arranged in the exhaust air chamber. The fan blows the air flow to the side of the module 11 facing away from the first door panel 2. When the exhaust air fan works, it further sucks the air flow into the exhaust air chamber and discharges it from both sides of the exhaust air chamber; combined with Figure 1 and Figure 4 it can be seen that air outlets are arranged on the two opposite sides of the exhaust air chamber in the second direction Y.

[0045] It should be noted that when using this noise reduction air inlet structure, the third direction Z can be the same as the gravity direction.

[0046] Among them, the first door panel 2 is hinged to the cabinet body 1. The first door panel 2 can rotate around the third direction Z or the second direction Y. There are many existing solutions for how to rotate specifically, so no detailed description will be given here; in addition, in this application, the first door panel 2 rotates around the third direction Z to facilitate the opening and closing of the first door panel 2. Subsequently, the second door panel 8 and the third door panel 9 can both rotate around the third direction Z.

[0047] Referring to Figure 5 and Figure 7 , in an exemplary embodiment, the noise reduction air inlet structure further includes a partition assembly. The partition assembly corresponds to the first air inlet 21 and is arranged in the first door panel 2. The partition assembly and the first door panel 2 enclose a labyrinth passage. The two ends of the labyrinth passage correspond to the first air inlet 21 and the air outlet 22 respectively; among them, there are two groups of partition assemblies, which are arranged oppositely at each first air inlet 21 in the second direction Y. In the second direction Y, the air outlet 22 is located between the two groups of partition assemblies.

[0048] Among them, for the two ends of the labyrinth passage corresponding to the first air inlet 21 and the air outlet 22 respectively, it can be understood that the two ends of the labyrinth passage are respectively located at the first air inlet 21 and the air outlet 22 and communicate with the corresponding first air inlet 21 and air outlet 22.

[0049] In an exemplary embodiment, the first door panel 2 may further include a bottom plate 24. The bottom plate 24 is arranged on one side of the first door panel 2 in the third direction Z. A second air inlet 241 is arranged on the bottom plate 24.

[0050] Among them, the bottom plate 24 is located at the bottom of the first door panel 2, and the bottom plate 24 is denoted as the plate where the second air inlet 241 is located; opening the second air inlet 241 on the bottom plate 24 can further improve the overall air intake volume of the first door panel 2. At the same time, since the second air inlet 241 is located on the bottom plate 24, the included angle between the bottom plate 24 and the plate where the air outlet 22 is located can be 90°. In this way, the noise transmitted out of the first door panel 2 through the second air inlet 241 will also lose energy. In addition, after the noise is transmitted out of the second air inlet 241, it will first come into contact with the ground. In this way, most of the energy of the sound wave will be absorbed by the ground. Therefore, while the second air inlet 241 improves the air intake volume to ensure the heat dissipation effect of the module 11, it can also reduce noise.

[0051] Reference Figures 4 to 7 , in an exemplary embodiment, the first door panel 2 may further include a back plate 25, the air outlet 22 is arranged on the back plate 25, the partition assembly may include a first partition plate 31 and a second partition plate 32. The first partition plate 31 is arranged opposite to the corresponding side plate 23 in the second direction Y and is connected to the back plate 25. The second partition plate 32 is arranged on the side of the corresponding side plate 23 facing the first partition plate 31, and the first air inlet 21 is located on the side of the second partition plate 32 facing the cabinet body 1; wherein, one side of the first partition plate 31 away from the back plate 25 extends out of the plane where the second partition plate 32 is located in the first direction.

[0052] Among them, the air outlet 22 is located between two groups of partition assemblies. In other words, the air outlet 22 is located between two first partition plates 31, and the second partition plate 32 may be perpendicular to the side plate 23.

[0053] In a group of partition assemblies, the first air inlet 21 is located on the side of the second partition plate 32 facing the cabinet body 1. As Figure 4 shown, the path that the noise generated by the fan needs to pass through when transmitted out of the first air inlet 21 is opposite to the direction of the air inlet path. Then, when the noise is transmitted out of the first air inlet 21, it needs to first pass through the air outlet 22 and be reflected multiple times to reach the side of the second partition plate 32 away from the back plate 25, and then pass through the gap between the first partition plate 31 and the second partition plate 32 through multiple reflections, enter the space surrounded by the first partition plate 31, the second partition plate 32, the back plate 25 and the side plate 23, and finally be discharged from the first air inlet 21 through multiple reflections. In this way, the energy of the sound wave is greatly reduced, achieving noise reduction.

[0054] Among them, as Figure 4 shown, the propagation path of the noise is the maze channel, and the propagation path of the noise is opposite to the direction marked by the black arrow.

[0055] It should be understood that since the maze channel connects the first air inlet 21 and the air outlet 22, there must be a gap between the first partition plate 31 and the second partition plate 32.

[0056] Furthermore, impurities (dust, rainwater, etc.) entering from the first air inlet 21 will be blocked by the first partition board 31. Even if the path of the impurities changes due to weather such as strong winds, the impurities will be further blocked by the second partition board 32. The blocked impurities will fall due to their own gravity and finally be discharged from the second air inlet 241, ensuring that the noise reduction air inlet structure can still be used normally even in extreme weather such as strong winds and heavy rains.

[0057] Among them, for the side of the first partition board 31 away from the back plate 25 extending beyond the plane where the second partition board 32 is located in the first direction, it can also be understood that the maximum distance between the first partition board 31 and the back plate 25 is a, the maximum distance between the second partition board 32 and the back plate 25 is b, and a≥b.

[0058] It should be noted that if a < b, when the noise is on the side of the first partition board 31 facing away from the side plate 23, it can enter the space enclosed by the first partition board 31, the second partition board 32, the back plate 25, and the side plate 23; based on this, in this exemplary embodiment, a is set to be greater than or equal to b, so the noise must first reach the side of the second partition board 32 facing away from the back plate 25 before it can enter the space enclosed by the first partition board 31, the second partition board 32, the back plate 25, and the side plate 23, thus ensuring that the noise is reflected multiple times during propagation, thereby weakening the noise.

[0059] In addition, when a≥b, it is more difficult for impurities to pass through the gap between the first partition board 31 and the second partition board 32, thereby further enhancing the blocking effect on impurities.

[0060] Reference Figure 6 , in the exemplary embodiment, the partition assembly may further include a first inclined plate 33. The first inclined plate 33 is connected to the side of the first partition board 31 away from the back plate 25 and is inclined towards the corresponding side plate 23. The included angle between the first inclined plate 33 and the first partition board 31 is c, and 90° < c < 180°.

[0061] In the exemplary embodiment, the partition assembly may further include a second inclined plate 34. The second inclined plate 34 is connected to the side of the second partition board 32 away from the corresponding side plate 23 and is inclined towards the corresponding back plate 25. The included angle between the second inclined plate 34 and the second partition board 32 is d, and 90° < d < 180°.

[0062] Specifically, when the noise passes through the first partition board 31 and the second partition board 32, it will be reflected multiple times by the first inclined plate 33 and the second inclined plate 34, thereby further increasing the number of reflections when the noise propagates in the maze channel, and the noise reduction effect is better.

[0063] Furthermore, as Figure 6As shown, in the embodiment of the present application, c = d = 135°. In this way, the gap between the first inclined plate 33 and the second inclined plate 34 is relatively large, which can ensure the overall air intake volume of the first door panel 2. At the same time, it can increase the number of reflections of noise when propagating in the labyrinth channel, improving the noise reduction effect.

[0064] Furthermore, when impurities enter the first air inlet 21, even if the moving path of the impurities themselves is towards the gap between the first partition plate 31 and the second partition plate 32, the impurities will be blocked by the second inclined plate 34 and finally fall out of the first door panel 2 from the second air inlet 241, providing better protection at the air inlet.

[0065] Refer to Figure 6 and Figure 7 , in an exemplary embodiment, the first door panel 2 may further include a front plate 26, and the front plate 26 is disposed opposite to the back plate 25 in the first direction X; the noise reduction air intake structure may further include a plurality of damping vibration isolation sheets 4, and the plurality of damping vibration isolation sheets 4 are respectively disposed on one side of the two first partition plates 31 facing each other and on the side of the front plate 26 facing the back plate 25.

[0066] Specifically, damping vibration isolation sheets 4 are provided on both the front plate 26 and the two first partition plates 31. In other words, when the noise just enters the first door panel 2 from the air outlet 22, the energy is the largest. The two first partition plates 31 and the front plate 26 are all in this area. Therefore, setting the damping vibration isolation sheets 4 only in this area is cost-effective and can absorb noise and vibration to a large extent, preventing the structure inside the first door panel 2 from resonating due to the influence of the fan noise, thus ensuring the noise reduction effect and improving the service life of the first door panel 2 and its internal structure.

[0067] Refer to Figure 6 and Figure 7 , in an exemplary embodiment, the noise reduction air intake structure may further include a plurality of sound-absorbing cotton 5, and the plurality of sound-absorbing cotton 5 correspond to the plurality of damping vibration isolation sheets 4 one by one. The sound-absorbing cotton 5 is disposed on the side of the corresponding damping vibration isolation sheet 4 facing away from the first partition plate 31 or on the side of the corresponding damping vibration isolation sheet 4 facing away from the front plate 26.

[0068] Specifically, setting the sound-absorbing cotton 5 only in the area where the noise energy is the largest is cost-effective and can absorb noise energy to a large extent, ensuring the noise reduction effect.

[0069] In addition, the sound-absorbing cotton 5 disposed on the front plate 26 is denoted as the first sound-absorbing cotton. When the included angle between the first inclined plate 33 and the first partition plate 31 is set to 135°, the first inclined plate 33 can reflect the noise towards the first sound-absorbing cotton, further weakening the noise energy and improving the noise reduction effect.

[0070] It should be understood that the included angle between the first inclined plate 33 and the first partition plate 31 here is set to 135°, not limited to only 135° to achieve the effect. Instead, it is for illustrative purposes. For example, when the included angle between the first inclined plate 33 and the first partition plate 31 is 133°, 134°, 136°, 137°, etc., the above effects can be achieved.

[0071] In an exemplary embodiment, the noise reduction air inlet structure may further include a plurality of wire meshes. The wire meshes are correspondingly arranged at the first air inlet 21 and are connected to the corresponding side plates 23.

[0072] Among them, the wire mesh can prevent larger external objects (such as leaves, small animals, etc.) from entering the first door panel 2, thereby protecting the first door panel 2 or the internal components of the cabinet 1 from damage. And the wire mesh can play a certain role in sound attenuation, helping to reduce the noise generated when the fan operates. Although the wire mesh itself will not significantly reduce noise like sound insulation materials, it can slightly reduce noise by changing the path or speed of the air flow. At the same time, due to the good air permeability of the wire mesh, it will not significantly hinder the air flow, ensuring the air inlet demand of the first air inlet 21 and providing a basic safety barrier.

[0073] Reference Figure 5 and Figure 7 In an exemplary embodiment, the noise reduction air inlet structure may further include a dust-proof cotton 6. The dust-proof cotton 6 is arranged at the air outlet 22 and is connected to the first door panel 2.

[0074] Specifically, as Figure 5 shown in Figure 7 the dust-proof cotton 6 is arranged on the side of the back plate 25 facing away from the front plate 26 and is arranged at the air outlet 22. In this way, when the external air flow enters the interior of the cabinet 1 through the air inlet on the first door panel 2, it will all pass through the preliminary filtration of the dust-proof cotton 6, thereby preventing dust from entering the interior of the cabinet 1.

[0075] Furthermore, when the noise generated by the fan enters the first door panel 2 through the dust-proof cotton 6 from the air outlet 22, the dust-proof cotton 6 will also weaken the noise energy, thereby improving the noise reduction effect.

[0076] Reference Figure 11 In an exemplary embodiment, in the first direction X, the module 11 is opposite to the air outlet 22. The noise reduction air inlet structure further includes a noise reduction plate. The noise reduction plate is arranged at the air outlet 22 and is connected to the first door panel 2. The noise reduction plate includes a plurality of corrugated plates 7 arranged in sequence in the fourth direction. Each corrugated plate 7 is a corrugated structure and is parallel to the fourth direction. The fourth direction intersects with the first direction X. Among them, in two adjacent corrugated plates 7, the peak of one corrugated plate 7 corresponds to the valley of the other corrugated plate 7.

[0077] Among them, the noise reduction plate can be arranged on the side of the back plate 25 facing away from the dust-proof cotton 6, and the noise reduction plate is located between two first partition plates 31; and the included angle between the fourth direction and the first direction X can be 90°, that is, the fourth direction is perpendicular to the first direction X.

[0078] Specifically, as Figure 11 shown, each corrugated plate 7 has a wave crest and a wave trough. Taking the side of the noise reduction plate facing away from the back plate 25 as a reference, the protruding part on this side is denoted as the wave crest, and the concave part is denoted as the wave trough. Then, for two adjacent corrugated plates 7, in the fourth direction, the wave crest of one corrugated plate 7 corresponds to the wave trough of the other corrugated plate 7. In this way, through holes will be formed between the corresponding wave crest and wave trough, and the through holes communicate with both sides of the noise reduction plate in the first direction X. The air flow at the first air inlet 21 can pass through the through holes. In other words, the noise reduction plate will not affect the normal air intake of the first air inlet 21; at the same time, in the first direction X, the noise reduction plate is in a closed state, that is, the two sides are not connected, and the noise needs to be reflected multiple times to pass through the through holes and reach the other side of the noise reduction plate, thereby further improving the noise reduction effect.

[0079] Among them, in the first direction X, the noise reduction plate is in a closed state, which can be understood as that when observing the noise reduction plate along the first direction X, the noise reduction plate is in a complete shape, and sound waves can hardly pass through the noise reduction plate along the first direction X. Specifically, the overall shape of the noise reduction plate only needs to correspond to the air outlet 22. For example, in this application, the air outlet 22 is rectangular, then the overall noise reduction plate can be set as rectangular.

[0080] It should be noted that in this application, the noise reduction plate can be formed by injection molding. The size of the coverage area of the noise reduction plate on the back plate 25 can be adjusted according to the number and length of the spliced corrugated plates 7, as Figure 11 shown. The longer the length of a single corrugated plate 7, the more corrugated plates 7 the noise reduction plate contains, and the larger the coverage area. The specific coverage area of the noise reduction plate can be selected according to the actual situation. For example, the noise reduction plate should cover the air outlet 22.

[0081] Among them, the length of the corrugated plate 7 refers to the length of the corrugated plate 7 in the fifth direction, and the fifth direction is perpendicular to both the first direction and the fourth direction.

[0082] In a preferred embodiment, the module 11 and the air outlet 22 are directly opposite in the first direction X, and the fourth direction is perpendicular to the first direction, which can be understood as that the noise reduction plate is perpendicular to the first direction X. In other words, the module 11 is directly opposite to the noise reduction plate. In this way, the fan and the noise reduction plate are directly opposite in the first direction X, and in this way, the noise reduction effect of the noise reduction plate on the fan noise is better.

[0083] Refer to Figures 1 to 3, in an exemplary embodiment, the cabinet door assembly may further include a second door panel 8. The second door panel 8 is disposed opposite to the first door panel 2 in the second direction Y and abuts against the first door panel 2. A first ventilation channel is provided inside the second door panel 8, and the first ventilation channel has an air inlet end and an air outlet end. Wherein, the air outlet end of the first ventilation channel is communicated with the first air inlet 21 on the first door panel 2.

[0084] Specifically, as Figure 3 shown, when the cabinet body 1 is relatively large, a double-door structure can be adopted. The cabinet door assembly includes a first door panel 2 and a second door panel 8. The black arrow indicates the air flow direction. The air inlet end of the first ventilation channel is disposed at the bottom of the second door panel 8. In this way, when the first door panel 2 and the second door panel 8 are closed, even if the second door panel 8 abuts against the corresponding side plate 23, the first air inlet 21 on the corresponding side plate 23 can intake air through the first ventilation channel, effectively ensuring the air intake volume of the first door panel 2.

[0085] Among them, as Figure 3 shown, a first baffle 81 is provided inside the second door panel 8. The first baffle 81 divides the interior of the second door panel 8 into a first area and a second area. Both the air inlet end and the air outlet end of the first ventilation channel are located in the first area. The first area can also be understood as the first ventilation channel. Electrical structures can be provided in the second area. That is, interactive structures such as a display screen and operation buttons can be provided on the outer side of the second door panel 8. These interactive structures are connected to the electrical structures inside the second door panel 8. In this way, it not only does not affect the setting of interactive structures on the cabinet door assembly for easy operation, but also does not affect the cabinet door assembly from achieving air intake while reducing noise.

[0086] Further, in the first direction X, the module 11 inside the cabinet body 1 is disposed opposite to the air outlet 22 of the first door panel 2. Other electrical structures can be provided in the area of the cabinet body 1 opposite to the second door panel 8, ensuring that the main heat-generating area inside the cabinet body 1, that is, the area where the module 11 is located, can be easily cooled. It can be understood that the setting position of the module 11 corresponds to the first door panel 2.

[0087] It should be noted that the air inlet end of the first ventilation channel is disposed at the bottom of the second door panel 8, which can not only prevent dust, rainwater, etc. from entering, but also further reduce the noise energy by transmitting the noise to the ground, improving the noise reduction effect.

[0088] Refer to Figures 8 to 10, in an exemplary embodiment, there are two first door panels 2, and the two first door panels 2 are arranged oppositely in the second direction Y; the cabinet door assembly may further include a third door panel 9, and the third door panel 9 is disposed between the two first door panels 2 and abuts against the two first door panels 2. A second ventilation channel is provided in the third door panel 9, and the second ventilation channel has an air inlet end and two air outlet ends; wherein, the two air outlet ends of the second ventilation channel are respectively communicated with the first air inlets 21 on the two first door panels 2.

[0089] Among them, as Figure 9 with Figure 10 shown, when the cabinet body 1 is relatively large, a three-door structure can also be adopted. The cabinet door assembly includes two first door panels 2 and a third door panel 9. The black arrow indicates the air flow direction. The air inlet end of the second ventilation channel is located at the bottom of the third door panel 9. In this way, when the first door panel 2 and the third door panel 9 are closed, even if the third door panel 9 abuts against the corresponding two side plates 23, the first air inlets 21 on the corresponding side plates 23 can intake air through the second ventilation channel, effectively ensuring the air intake volume of the two first door panels 2.

[0090] Among them, as Figure 9 shown, a second baffle 91 is provided inside the third door panel 9. The second baffle 91 divides the interior of the third door panel 9 into a third area and a fourth area. Both the air inlet end and the air outlet end of the second ventilation channel are located in the third area. The third area can also be understood as the second ventilation channel; an electrical structure can be provided in the fourth area, that is, an interactive structure such as a display screen and operation buttons can be provided on the outside of the third door panel 9. These interactive structures are connected to the electrical structure inside the third door panel 9. In this way, it not only does not affect the setting of the interactive structure on the cabinet door assembly for easy operation, but also does not affect the cabinet door assembly to intake air and reduce noise at the same time.

[0091] Further, the setting position of the module 11 corresponds to the first door panel 2 in the first direction X.

[0092] It should be noted that setting the air inlet end of the second ventilation channel at the bottom of the third door panel 9 can not only prevent dust, rainwater, etc. from entering, but also further reduce the noise energy by transmitting the noise to the ground, improving the noise reduction effect.

[0093] Furthermore, a connecting port can be provided on the side of the third door panel 9 facing the cabinet 1, and the connecting port is connected with the fourth area and the interior of the cabinet 1, thereby improving the overall ventilation effect inside the cabinet 1. At the same time, in the second direction Y, the position of the module 11 is staggered with the third door panel 9, so that the noise emitted by the fan is not easy to enter the connecting port, and the plate where the connecting port is located is perpendicular to the plate where the air inlet end of the second ventilation duct is located. Even if the noise is reflected multiple times and transmitted to the fourth area through the connecting port, it needs to be reflected multiple times again to be transmitted from the air inlet end of the second ventilation duct; and after the noise is transmitted from the air inlet end of the second ventilation duct, most of the energy will be absorbed by the ground. In this way, the overall ventilation effect inside the cabinet 1 can be improved, and a large noise will not be transmitted, thereby ensuring the noise reduction effect.

[0094] The plate where the communication port is located is the plate on the side of the third door plate 9 facing the cabinet 1 , that is, the back plate of the third door plate 9 .

[0095] In addition, the cabinet door assembly includes a first door panel 2, a second door panel 8 and a third door panel 9. The three door panels can be combined in a variety of ways. Regardless of the combination, at least one first door panel 2 is provided. The following is an example of cabinet door assemblies with two-door and three-door noise reduction air inlet structures in the second direction Y.

[0096] For the two-door noise reduction air intake structure, the cabinet door assembly can include the first door panel 2, the second door panel 8, or the first door panel 2, the third door panel 9, so that the air intake volume of the first door panel 2 can be guaranteed; however, the cabinet door assembly can also include two first door panels 2, so that the noise reduction air intake structure can still achieve noise reduction, but the air intake volume of the first door panel 2 is affected, the heat dissipation effect is deteriorated, and the interactive structure is difficult to be set on the cabinet door assembly. The specific number of first door panels 2 can be selected according to the position of the module 11 in the cabinet body 1.

[0097] For the three-door noise reduction air intake structure, the cabinet door assembly can include the following three situations in addition to the above situation. The first is two second door panels 8 and a first door panel 2, and the first door panel 2 is located between the two second door panels 8; the second is two third door panels 9 and a first door panel 2, and the first door panel 2 is located between the two third door panels 9; the third is a first door panel 2, a second door panel 8 and a third door panel 9, and the first door panel 2 is arranged between the second door panel 8 and the third door panel 9. In this way, noise reduction can be achieved while ensuring ventilation. Of course, there are not only the above three situations. For example, the first door panel 2, the third door panel 9 and the second door panel 8 can be arranged in sequence. However, such an arrangement will cause the third door panel 9 to duplicate the functions of the second door panel 8, and it is not reasonable to use it. Therefore, such unreasonable arrangement will not be described in detail.

[0098] In summary, the second door panel 8 can ensure that the air intake volume on the side of a first door panel 2 close to the second door panel 8 is not affected; the third door panel 9 can ensure that the air intake volume on the side of two adjacent first door panels 2 close to the third door panel 9 is not affected; the specific combination can be selected according to the actual situation. For structures such as four-door, five-door... etc., they can all be combined according to the above principle, and no detailed description will be given here.

[0099] Based on the above embodiments, the embodiment of the present application further provides a charging device, and the charging device may include the above noise reduction air intake structure.

[0100] Specifically, the charging device may be a charging pile, then the above module 11 may be a charging module in the charging pile, and the fan may be a heat dissipation fan on the charging module. When the heat dissipation fan works, noise reduction can be achieved through the above noise reduction ventilation structure.

[0101] 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, are equally included in the patent protection scope of the present application.

Claims

1. A noise reduction air intake structure, characterized in that, Including: A cabinet body (1) with a module (11) arranged inside; A cabinet door assembly arranged on one side of the cabinet body (1). The cabinet door assembly includes a first door panel (2) with a hollow interior. The first door panel (2) is arranged on one side of the cabinet body (1) in a first direction, and an air outlet (22) is arranged on the side of the first door panel (2) facing the module (11); The first door panel (2) includes: Two side plates (23) oppositely arranged on both sides of the first door panel (2) in a second direction. First air inlets (21) are arranged on both of the two side plates (23). The second direction intersects with the first direction.

2. The noise reduction air intake structure according to claim 1, characterized in that The noise reduction air inlet structure further includes: A partition assembly corresponding to the first air inlet (21) and arranged inside the first door panel (2). The partition assembly and the first door panel (2) enclose a labyrinth passage, and the two ends of the labyrinth passage respectively correspond to the first air inlet (21) and the air outlet (22); Wherein, there are two groups of the partition assemblies, which are oppositely arranged at each of the first air inlets (21) in the second direction. In the second direction, the air outlet (22) is located between the two groups of the partition assemblies.

3. The noise reduction air intake structure according to claim 2, wherein The first door panel (2) further includes: A bottom plate (24) arranged on one side of the first door panel (2) in a third direction. A second air inlet (241) is arranged on the bottom plate (24). The third direction intersects with the first direction and the second direction respectively.

4. The noise reduction air intake structure according to claim 2, characterized in that, The first door panel (2) further includes a back plate (25). The air outlet (22) is arranged on the back plate (25). The partition assembly includes: A first partition plate (31) oppositely arranged in the second direction with the corresponding side plate (23) and connected to the back plate (25); A second partition plate (32) arranged on the side of the corresponding side plate (23) facing the first partition plate (31). The first air inlet (21) is located on the side of the second partition plate (32) facing the cabinet body (1); Wherein, the side of the first partition plate (31) away from the back plate (25) extends out of the plane where the second partition plate (32) is located in the first direction.

5. The noise reduction air intake structure according to claim 4, wherein, The partition assembly further includes: A first inclined plate (33) connected to the side of the first partition plate (31) away from the back plate (25) and inclined towards the corresponding side plate (23). The included angle between the first inclined plate (33) and the first partition plate (31) is c, and 90° < c < 180°.

6. The noise reduction air intake structure according to claim 4, wherein, The partition assembly further includes: A second inclined plate (34) connected to the side of the second partition plate (32) away from the corresponding side plate (23) and inclined towards the corresponding back plate (25). The included angle between the second inclined plate (34) and the second partition plate (32) is d, and 90° < d < 180°.

7. The noise reduction air intake structure according to claim 4, wherein, The first door panel (2) further includes a front plate (26). The front plate (26) is oppositely arranged with the back plate (25) in the first direction. The noise reduction air inlet structure further includes: A plurality of vibration damping sheets (4) are respectively arranged on the opposite sides of the two first partition plates (31) and on the side of the front plate (26) facing the back plate (25).

8. The noise reduction air intake structure according to claim 7, wherein The noise reduction air intake structure also includes: A plurality of sound-absorbing cottons (5) correspond one to one with the plurality of damping vibration isolation plates (4), and the sound-absorbing cottons (5) are arranged on a side of the damping vibration isolation plate (4) facing away from the first partition plate (31) or a side of the damping vibration isolation plate (4) facing away from the front plate (26).

9. The noise reduction air intake structure according to claim 2, wherein, The noise reduction air inlet structure also includes: A steel wire mesh is arranged correspondingly at the first air inlet (21), and the steel wire mesh is connected to the corresponding side plate (23).

10. The noise reduction air intake structure according to claim 2, characterized in that, The noise reduction air inlet structure also includes: The dustproof cotton (6) is arranged at the air outlet (22) and connected to the first door panel (2).

11. The noise reduction air intake structure according to claim 1, wherein, In the first direction, the module (11) is opposite to the air outlet (22); the noise reduction air inlet structure further comprises a noise reduction plate, which is arranged at the air outlet (22) and connected to the first door panel (2); The noise reduction plate comprises a plurality of wave plates (7) arranged in sequence in a fourth direction, each of the wave plates (7) is a wave-shaped structure and is parallel to the fourth direction, and the fourth direction intersects with the first direction; Among the two adjacent wave plates (7), the wave crest of one wave plate (7) corresponds to the wave trough of the other wave plate (7).

12. The noise reduction air intake structure according to claim 1, characterized in that, The cabinet door assembly also includes: a second door panel (8), arranged opposite to the first door panel (2) in the second direction and in contact with the first door panel (2), wherein a first ventilation channel is arranged in the second door panel (8), and the first ventilation channel has an air inlet end and an air outlet end; Wherein, the air outlet end of the first ventilation flow channel is in communication with the first air inlet (21) on the first door panel (2).

13. The noise reduction air intake structure according to claim 1, wherein, The first door panels (2) are in two pieces, and the two first door panels (2) are arranged opposite to each other in the second direction; the cabinet door assembly further comprises: A third door panel (9) is arranged between the two first door panels (2) and contacts the two first door panels (2), wherein a second ventilation channel is arranged in the third door panel (9), and the second ventilation channel has an air inlet end and two air outlet ends; Wherein, the two air outlet ends of the second ventilation flow channel are respectively connected to the first air inlets (21) on the two first door panels (2).

14. A charging device, characterized in that, include: The noise reduction air inlet structure according to any one of claims 1 to 13.

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