Ventilation device and energy storage system

Abstract

The utility model discloses a ventilation device and an energy storage system, and belongs to the technical field of energy storage ventilation, and the ventilation device comprises a frame which is provided with a first ventilation opening and a second ventilation opening; the first cavity plate is arranged in the frame and connected with the frame, and the first cavity plate is provided with a plurality of first protruding sections; the second cavity plate is arranged in the frame and connected with the frame, and the second cavity plate is provided with a second protruding section; the protruding directions of the second protruding section and the first protruding section are opposite; an air channel communicating with the first ventilation opening and the second ventilation opening is defined between the first cavity plate and the second cavity plate. Thus, through the first protruding section of the first cavity plate and the second protruding section of the second cavity plate, the air channel is of a continuous variable cavity structure, and sound waves of noise are continuously refracted and reversely rebounded in the air channel, so that the noise generated in the ventilation process is reduced, and the influence on the external environment is avoided.

Description

Technical Field

[0001] The present application belongs to the field of energy storage ventilation technology, and in particular relates to a ventilation device and an energy storage system. Background Art

[0002] Currently, energy storage systems require ventilation to circulate air between them and the external environment to cool and dissipate heat from internal electrical components, ensuring proper operation. However, this ventilation process generates considerable noise, impacting the external environment. Utility Model Content

[0003] Purpose of this application: This application provides a ventilation device for solving the problem that a large noise is generated during the ventilation process of an energy storage system, affecting the external environment; this application also provides an energy storage system.

[0004] Technical solution: This application provides a ventilation device, including:

[0005] a frame having a first vent and a second vent;

[0006] a plurality of first cavity plates, disposed in the frame and connected to the frame, the first cavity plates having a plurality of first raised sections;

[0007] A second cavity plate is disposed in the frame and connected to the frame, the second cavity plate having a plurality of second raised segments; the raised directions of the second raised segments are opposite to those of the first raised segments;

[0008] An air duct communicating with the first vent and the second vent is formed between the first cavity plate and the second cavity plate.

[0009] In some embodiments, further comprising:

[0010] A plurality of baffles are arranged in the air duct, wherein the baffles include a first surface and a second surface facing each other, wherein the first surface is a convex surface arranged toward the first vent, and the second surface is a concave surface arranged toward the second vent.

[0011] In some embodiments, the first raised section and the second raised section are arranged opposite to each other, the air duct has a plurality of air duct sections connected end to end, and the air duct section is located between the first raised section and the second raised section, each of the air duct sections has a gradually expanding section, a wide section and a gradually contracting section connected in sequence along the first direction, at least a portion of the baffle is arranged in the gradually expanding section, and the direction in which the first vent points to the second vent is the first direction.

[0012] In some embodiments, the air duct segment further has a narrow segment, and the narrow segment connects the tapered segment and the divergent segment in the next air duct segment.

[0013] In some embodiments, the system further includes: sound-absorbing cotton, which is at least partially disposed on the first cavity plate, and / or the sound-absorbing cotton is at least partially disposed on the second cavity plate.

[0014] In some embodiments, the sound-absorbing cotton is at least partially disposed on the first surface, and / or the sound-absorbing cotton is at least partially disposed on the second surface.

[0015] In some embodiments, a plurality of the air ducts are included, and the plurality of the air ducts are arranged in the frame.

[0016] In some embodiments, the first cavity plate and the second cavity plate are both wavy.

[0017] In some embodiments, the first cavity plate is connected to the frame by welding, the second cavity plate is connected to the frame by welding, and the baffle is connected to the frame by welding.

[0018] In some embodiments, further comprising:

[0019] The vent assembly is covered on the first vent, and the vent assembly is provided with a plurality of through holes communicating with the first vent.

[0020] Accordingly, the present application also provides an energy storage system, comprising:

[0021] Energy storage cabinet;

[0022] The ventilation device as described in any one of the above embodiments is installed on the energy storage cabinet.

[0023] Beneficial effect: Compared with the prior art, the ventilation device provided in the embodiment of the present application includes: a frame having a first vent and a second vent; a first cavity plate disposed in and connected to the frame, the first cavity plate having a plurality of first raised sections; a second cavity plate disposed in and connected to the frame, the second cavity plate having a second raised section; the raised section of the second raised section and the raised section of the first raised section are oriented in opposite directions; and an air duct connecting the first vent and the second vent is formed between the first cavity plate and the second cavity plate. In this way, the air duct is a continuous variable cavity structure through the first raised section of the first cavity plate and the second raised section of the second cavity plate, and the sound waves of the noise are continuously refracted and rebounded in the air duct, thereby reducing the noise generated during the ventilation process and avoiding affecting the external environment.

[0024] It can be understood that, compared with the prior art, the energy storage system provided in the embodiment of the present application includes all the technical features and technical effects of the above-mentioned ventilation device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0026] Figure 1 A schematic structural diagram of a ventilation device provided in an embodiment of the present application;

[0027] Figure 2 A right side view of the ventilation device provided in an embodiment of the present application;

[0028] Figure 3 for Figure 2 Schematic diagram of the first section of AA;

[0029] Figure 4 for Figure 2 Schematic diagram of the second section of AA;

[0030] Figure 5 A schematic cross-sectional view of a first cavity plate and a baffle in a ventilation device provided in an embodiment of the present application;

[0031] Figure 6 A schematic cross-sectional view of a baffle in a ventilation device provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of the structure of the energy storage system provided in an embodiment of the present application;

[0033] Figure 8 A front view of the energy storage system provided in an embodiment of the present application;

[0034] Figure 9 for Figure 8 Schematic diagram of the cross section of the BB.

[0035] Figure markings: 10-frame; 11-first vent; 12-second vent; 20-first cavity plate; 21-first raised section; 30-air duct; 31-air duct section; 311-narrow section; 312-gradually expanding section; 313-wide section; 314-gradually converging section; 40-baffle; 41-first surface; 42-second surface; 50-silencer cotton; 60-vent assembly; 61-through hole; 70-box; 71-air inlet; 72-air outlet; 80-second cavity plate; 81-second raised section; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically limited. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0038] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application.

[0039] The present application provides a ventilation device. Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , Figure 1 A schematic structural diagram of a ventilation device provided in an embodiment of the present application is shown; Figure 2 A right side view of the ventilation device provided in an embodiment of the present application is shown; Figure 3 Indicated Figure 2 Schematic diagram of the first section of AA; Figure 4 Indicated Figure 2Second cross-sectional schematic diagram of AA in the middle. The ventilation device provided in the embodiment of the present application includes: a frame 10, a first cavity plate 20 and a second cavity plate 80; wherein the frame 10 has a first vent 11 and a second vent 12, and the direction in which the first vent 11 points to the second vent 12 is a first direction X; the first cavity plate 20 is arranged in the frame 10 and connected to the frame 10, and the first cavity plate 20 has a plurality of first raised sections 21; the second cavity plate 80 is arranged in the frame 10 and connected to the frame 10, and the second cavity plate 80 has a plurality of second raised sections 81, and the raised directions of the second raised sections 81 and the first raised sections 21 are opposite; an air duct 30 is formed between the first cavity plate 20 and the second cavity plate 80, and the air duct 30 is connected to the first vent 11 and the second vent 12. It should be noted that the first convex section 21 and the second convex section 81 convex in opposite directions means that the first convex section 21 convexes along the second direction Y intersecting the first direction X, and the second convex section convexes in the opposite direction of the second direction Y. It can also be understood that Figure 3 As shown, the first raised segments 21 are upwardly projecting, while the second raised segments 81 are downwardly projecting. An air duct 30 is formed between the plurality of first raised segments 21 and the plurality of second raised segments 81. Thus, the air duct 30 has a continuous variable cavity structure through the plurality of first raised segments 21 of the first cavity plate 20 and the second raised segments 81 of the second cavity plate 80. Noise waves are continuously refracted and rebounded in the air duct 30, weakening the sound waves and thus reducing the noise generated during ventilation and preventing it from affecting the external environment.

[0040] In some embodiments, the ventilation device further includes a plurality of baffles 40 disposed within the air duct 30. The baffles 40 include a first surface 41 and a second surface 42 facing each other. The first surface 41 is a convex surface disposed toward the first vent 11, and the second surface 42 is a concave surface disposed toward the second vent 12. The second direction Y intersects with the first direction X. Thus, the air duct 30 is formed into a continuous variable cavity structure by the plurality of first raised sections 21 of the first cavity plate 20 and the second raised section 81 of the second cavity plate 80. Combined with the arrangement of the baffles 40, noise waves are continuously refracted and rebounded in the air duct 30 by the inner wall of the first raised section 21, the inner wall of the second raised section 81, the first surface 41, and the second surface 42. Simultaneously, the second surface 42 of the baffle 40 can block sound waves from passing through the middle of the air duct 30, thereby attenuating the sound waves and reducing the noise generated during ventilation to avoid affecting the external environment.

[0041] Specifically, see again Figure 3During use, the ventilation device can draw air in along a first direction X, through the first vent 11, and out through the second vent 12. Noise waves are transmitted from the second vent 12 to the first vent 11. The direction of air flow in the ventilation device is opposite to the direction of noise wave transmission. At this point, after the wind, or the airflow used for ventilation, enters the air duct 30 from the first vent 11, it is guided by the first surface 41, which is a convex surface facing the first vent 11. This reduces wind resistance within the air duct 30 and maintains the ventilation effect of the ventilation device. It is understood that to further enhance the guiding effect of the first surface 41, the baffle 40 may be a V-shaped plate. After the sound waves of the noise enter the air duct 30 from the second vent 12, due to the multiple first raised sections 21 of the first cavity plate 20 and the second raised section 81 of the second cavity plate 80, the air duct 30 has a continuous variable cavity structure. After the sound waves of the noise contact the surfaces of the first cavity plate 20 and the second cavity plate 80 facing the air duct 30, they are continuously refracted and rebounded back; at the same time, due to the setting of the baffle 40, when the sound waves of the noise contact the first surface 41 or the second surface 42, they are also continuously refracted and rebounded back; in addition, since the second surface 42 is a concave surface set toward the second vent 12, it can also block the sound waves that flow through the middle of the air duct 30 but do not contact the first cavity plate 20 and the second cavity plate 80, thereby continuously weakening the sound waves and reducing noise.

[0042] Similarly, please refer to Figure 4 During use, the ventilation device can also be operated in the opposite direction of the first direction X, with air entering through the second vents 12 and exiting through the first vents 11. Noise waves are also transmitted from the second vents 12 to the first vents 11. The direction of air entering the ventilation device and the direction of noise wave transmission are the same. In this case, after air enters the air duct 30 through the second vents 12, due to the gaps between the first cavity plate 20 and the baffle 40, and between the second cavity plate 80 and the baffle 40, the air can bypass the baffle 40 and exit the air duct 30, maintaining the ventilation effect of the ventilation device. After the sound waves of the noise enter the air duct 30 from the second vent 12, due to the multiple first raised sections 21 of the first cavity plate 20 and the second raised section 81 of the second cavity plate 80, the air duct 30 has a continuous variable cavity structure. After the sound waves of the noise contact the surfaces of the first cavity plate 20 and the second cavity plate 80 facing the air duct 30, they are continuously refracted and rebounded back; at the same time, due to the setting of the baffle 40, when the sound waves of the noise contact the first surface 41 or the second surface 42, they are also continuously refracted and rebounded back; in addition, since the second surface 42 is a concave surface set toward the second vent 12, it can also block the sound waves that flow through the middle of the air duct 30 but do not contact the first cavity plate 20 and the second cavity plate 80, thereby continuously weakening the sound waves and reducing noise.

[0043] See also Figure 5 , Figure 5 A cross-sectional schematic diagram of a first cavity plate and a baffle in a ventilation device provided in an embodiment of the present application is illustrated. In some embodiments, the first raised section 21 is disposed opposite the second raised section 81. The air duct 30 includes multiple end-to-end connected air duct sections 31, each of which is located between the first raised section 21 and the second raised section 81. Each air duct section 31 includes a gradually expanding section 312, a wide section 313, and a gradually contracting section 314, which are sequentially connected along a first direction X. At least a portion of the baffle 40 is disposed in the gradually expanding section 312, and the direction from the first vent 11 to the second vent 12 is the first direction X. Specifically, by providing the gradually expanding section 312, the wide section 313, and the gradually contracting section 314, the air duct section 31 has a variable cavity structure that first widens and then narrows. When the multiple air duct sections 31 are connected end-to-end, the entire air duct 30 presents a continuously variable cavity structure that first widens, then narrows, then widens, and then narrows again. In this way, after the noise waves contact the surfaces of the first and second raised sections 21 and 81 facing the air duct 30, they continuously contact the surfaces of the first and second raised sections 21 and 81 corresponding to the expanding section 312, the surfaces of the first and second raised sections 21 and 81 corresponding to the wide section 313, and the surfaces of the first and second raised sections 21 and 81 corresponding to the tapering section 314. This increases the frequency of the sound waves being refracted and rebounded, further enhancing the noise reduction effect. Simultaneously, disposing at least a portion of the baffle 40 in the expanding section 312 can block sound waves that flow through the middle of the air duct 30 but do not contact the surfaces of the first and second raised sections 21 and 81 before the noise enters the tapering section 314. It is understood that along the second direction Y, the size of the baffle 40 should be greater than or equal to the size of the narrow section 311, thereby preventing noise from being transmitted through the gaps between the first and second raised sections 21 and the baffle 40, as well as the gaps between the second and second raised sections 81 and the baffle 40. In this way, the noise sound waves are weakened and the noise is reduced.

[0044] In some embodiments, the air duct segment 31 further comprises a narrow segment 311, which is connected to the tapered segment 314 and the diverging segment 312 in the next air duct segment 31. Figure 3 and Figure 5 When the ventilation device takes in air from the first vent 11 and discharges air from the second vent 12, the first convex section 21 and the second convex section 81 corresponding to the narrow section 311 provide guidance for the wind after passing through the tapered section 314, further ensuring the ventilation effect of the ventilation device; at the same time, when noise is transmitted from the second vent 12 to the first vent 11, the first convex section 21 and the second convex section 81 corresponding to the narrow section 311 provide more refraction and reverse rebound surfaces for the noise waves, thereby enhancing the sound wave attenuation effect. Similarly, please refer to Figure 4 and Figure 5When the ventilation device takes in air from the second ventilation port 12 and discharges air from the first ventilation port 11, the first raised section 21 and the second raised section 81 corresponding to the narrow section 311 provide a guiding effect for the wind after passing through the narrow section 311, further ensuring the ventilation effect of the ventilation device; at the same time, noise is transmitted from the second ventilation port 12 to the first ventilation port 11, and the first raised section 21 and the second raised section 81 corresponding to the narrow section 311 provide more refraction and reverse rebound surfaces for the noise sound waves, thereby enhancing the sound wave attenuation effect.

[0045] In some embodiments, the ventilation device further comprises: a sound-absorbing cotton 50, the sound-absorbing cotton 50 is at least partially disposed on the first cavity plate 20, and / or the sound-absorbing cotton 50 is at least partially disposed on the second cavity plate 80. Please refer again Figure 3 、 Figure 4 and Figure 5 Due to the presence of the expanding section 312, wide section 313, and tapering section 314 in the air duct 30, noise waves refract and rebound on the surfaces of the first and second raised sections 21 and 81 corresponding to the expanding section 312, wide section 313, and tapering section 314. Therefore, the noise absorption effect can be achieved by disposing the sound-absorbing cotton 50 at least partially on the surfaces of the first and second raised sections 21 and 81 corresponding to the expanding section 312, wide section 313, and tapering section 314. Furthermore, to further enhance the sound absorption effect of the sound-absorbing cotton 50, the sound-absorbing cotton 50 can also be applied to the entire surface of the first and second raised sections 21 and 81 facing the air duct 30, or the entire surface of the first and second cavity plates 20 and 80 facing the air duct 30, thereby increasing the area of ​​the sound-absorbing cotton 50 that absorbs noise.

[0046] See also Figure 6 , Figure 6 A cross-sectional schematic diagram of a baffle in a ventilation device provided by an embodiment of the present application is shown; in some embodiments, the sound-absorbing cotton 50 is at least partially disposed on the first surface 41 and / or at least partially disposed on the second surface 42. Specifically, because both the first surface 41 and the second surface 42 of the baffle 40 can refract and rebound sound waves, and the refracted and rebounded sound waves continue to contact the surfaces of the first raised section 21 and the second raised section 81, the sound-absorbing cotton 50 can be at least partially disposed on the first surface 41, or at least partially disposed on the second surface 42, or at least partially disposed on both the first surface 41 and the second surface 42 to achieve noise absorption. Furthermore, the sound-absorbing cotton 50 can also be completely covered on the first surface 41 and / or the second surface 42 to increase the sound absorption area and further enhance the noise reduction effect.

[0047] In some embodiments, the ventilation device includes a plurality of air ducts 30, and the plurality of air ducts 30 are arranged in the frame 10 along the second direction Y. It can also be understood that the ventilation device includes a plurality of first cavity plates 20 and a plurality of second cavity plates 80, and an air duct 30 is formed between adjacent first cavity plates 20 and second cavity plates 80. Of course, since the first cavity plates 20 and the second cavity plates 80 are both plate-shaped structures, both surfaces thereof along the second direction Y can be used to reflect noise. Moreover, the plurality of first cavity plates 20 and the plurality of second cavity plates 80 are staggered along the second direction Y, that is, along the second direction Y, the first cavity plate 20, the second cavity plate 80, the first cavity plate 20, the second cavity plate 80, or the second cavity plate 80, the first cavity plate 20, the second cavity plate 80, the first cavity plate 20, and so on, until the accommodation space inside the frame 10 is fully utilized. According to this arrangement, excluding the position near the edge of the frame 10, along the second direction Y, a first cavity plate 20 will be set on both sides of the second cavity plate 80, and one side of the second cavity plate 80 will form an air duct 30 with a first cavity plate 20, and the other side of the second cavity plate 80 will form another air duct 30 with another first cavity plate 20; similarly, a second cavity plate 80 will be set on both sides of the first cavity plate 20, and one side of the first cavity plate 20 will form an air duct 30 with a second cavity plate 80, and the other side of the first cavity plate 20 will form another air duct 30 with another second cavity plate 80. It can be understood that due to the arrangement of the first raised section 21 and the second raised section 81, each air duct 30 is a continuous variable cavity structure, which can achieve a noise reduction effect. In addition, by setting up multiple air ducts 30, the present application allows each air duct 30 to realize the process of air intake or air outlet, and at the same time, each air duct 30 can reduce noise separately. It is understandable that, while the air intake and air output of the ventilation device remain unchanged, as the number of air ducts 30 increases, the air volume and noise passing through each air duct 30 will decrease, and accordingly, the noise reduction effect of each air duct 30 will also be better. In this way, under the premise of ensuring ventilation of the ventilation device, the noise reduction effect of the ventilation device can be improved by increasing the number of air ducts 30.

[0048] In some embodiments, both the first cavity plate 20 and the second cavity plate 80 are wavy. Specifically, the wavy first and second cavity plates 20, 80 allow for smoother cavity transitions in the air duct 30 and improve the flow characteristics of airflow through the cavity plates, reducing resistance and turbulence, increasing both air inlet and outlet rates, and improving the efficiency of the ventilation device. Furthermore, the wavy first and second cavity plates 20, 80 increase the reflection area for noise waves, thereby reducing the propagation and diffusion of noise. This allows the ventilation device to better control and reduce noise, further enhancing the device's noise reduction effectiveness.

[0049] In some embodiments, the first cavity plate 20 is welded to the frame 10, the second cavity plate 80 is welded to the frame 10, and the baffle 40 is welded to the frame 10. Specifically, the welded connection can provide a strong and sealed connection, ensuring that there is no air leakage or looseness between the first cavity plate 20 and the frame 10, between the second cavity plate 80 and the frame 10, and between the baffle 40 and the frame 10, thereby effectively controlling the air flow direction and noise flow direction in the ventilation device, improving the overall performance of the ventilation system and maintaining a stable air supply. At the same time, the welded connection makes the structure of the ventilation device more stable and strong, helps the ventilation device resist vibration and impact from the external environment, and reduces noise or resonance problems generated by the ventilation device during operation, thereby extending the service life of the ventilation device. In addition, the welded connection makes the interior of the ventilation device smoother and easier to clean, simplifies the maintenance and cleaning process of the ventilation device, and reduces maintenance costs.

[0050] Please refer again Figure 1 In some embodiments, the ventilation device further includes a vent assembly 60, which covers the first vent 11. The vent assembly 60 is provided with a plurality of through holes 61 that communicate with the first vent 11. Specifically, the provision of the vent assembly 60 and through holes 61 can prevent dust, particulate matter, and other pollutants from entering the ventilation system, thereby improving the ventilation quality of the ventilation device, preventing wear, blockage, and damage within the ventilation device, extending the service life of the ventilation device, reducing the need for repair and cleaning of the ventilation device, and lowering maintenance costs.

[0051] In summary, the ventilation device provided in the present application uses multiple first raised sections 21 of the first cavity plate 20 and the second raised section 81 of the second cavity plate 80 to make the air duct 30 a continuous variable cavity structure. The sound waves of noise are continuously refracted and rebounded in the air duct 30, weakening the sound waves, thereby reducing the noise generated during the ventilation process and avoiding affecting the external environment.

[0052] Accordingly, this application also provides an energy storage system, please refer to Figure 7 、 Figure 8 and Figure 9 , Figure 7 A schematic diagram of the structure of the energy storage system provided in an embodiment of the present application is shown; Figure 8 Schematic diagram of the energy storage system provided in an embodiment of the present application; Figure 9 Indicated Figure 8 The energy storage system includes: an energy storage cabinet; and a ventilation device as described in any one of the above embodiments, the ventilation device being mounted on the energy storage cabinet.

[0053] Specifically, the energy storage cabinet includes a housing 70 having an air inlet 71 and an air outlet 72 connected thereto. The second vent 12 of the ventilation device is located on the side of the air inlet 71 facing away from the housing 70, and / or the second vent 12 is located on the side of the air outlet 72 facing away from the housing 70. It will be appreciated that the interior of the housing 70 typically houses electrical components such as a liquid cooling unit compartment, a battery compartment, and an electrical compartment. These components generate noise within the housing 70 during operation. This noise then enters the ventilation device's air duct 30 and is reduced by the first cavity plate 20, the second cavity plate 80, and the baffle 40 to prevent it from affecting the external environment.

[0054] Specifically, when the second vent 12 of the ventilation device is located on the side of the air inlet 71 facing away from the housing 70, the ventilation device takes in air through the first vent 11 and discharges it through the second vent 12. The noise waves are transmitted from the second vent 12 to the first vent 11, and the direction of air intake and the direction of noise sound wave transmission in the ventilation device are opposite. At this time, after the air enters the air duct 30 from the first vent 11, the air is guided by the first surface 41, which is a convex surface facing the first vent 11. This reduces the wind resistance in the air duct 30 and maintains the ventilation effect of the ventilation device. After the sound waves of the noise enter the air duct 30 from the second vent 12, due to the multiple first raised sections 21 of the first cavity plate 20 and the second raised section 81 of the second cavity plate 80, the air duct 30 has a continuous variable cavity structure. After the sound waves of the noise contact the surfaces of the first cavity plate 20 and the second cavity plate 80 facing the air duct 30, they are continuously refracted and rebounded back; at the same time, due to the setting of the baffle 40, when the sound waves of the noise contact the first surface 41 or the second surface 42, they are also continuously refracted and rebounded back; in addition, since the second surface 42 is a concave surface set toward the second vent 12, it can also block the sound waves that flow through the middle of the air duct 30 but do not contact the first cavity plate 20 and the second cavity plate 80, thereby continuously weakening the sound waves, reducing noise, and preventing the noise generated in the box 70 from affecting the external environment.

[0055] Similarly, when the second vent 12 is located on the side of the air outlet 72 facing away from the housing 70, the ventilation device draws air in through the second vent 12 and discharges air through the first vent 11. The noise waves are also transmitted from the second vent 12 to the first vent 11. The direction of air inflow and the direction of noise wave transmission in the ventilation device are the same. At this point, after air enters the air duct 30 through the second vent 12, due to the gaps between the first cavity plate 20 and the baffle 40, and between the second cavity plate and the baffle 40, the air can bypass the baffle 40 and exit the air duct 30, maintaining the ventilation effect of the ventilation device. After the sound waves of the noise enter the air duct 30 from the second vent 12, due to the multiple first raised sections 21 of the first cavity plate 20 and the second raised section 81 of the second cavity plate 80, the air duct 30 has a continuous variable cavity structure. After the sound waves of the noise contact the surfaces of the first cavity plate 20 and the second cavity plate 80 facing the air duct 30, they are continuously refracted and rebounded back; at the same time, due to the setting of the baffle 40, when the sound waves of the noise contact the first surface 41 or the second surface 42, they are also continuously refracted and rebounded back; in addition, since the second surface 42 is a concave surface set toward the second vent 12, it can also block the sound waves that flow through the middle of the air duct 30 but do not contact the first cavity plate 20 and the second cavity plate 80, thereby continuously weakening the sound waves, reducing noise, and preventing the noise generated in the box 70 from affecting the external environment.

[0056] It can be understood that the energy storage system provided in the embodiment of the present application includes all the technical features and technical effects of the above-mentioned ventilation device, which will not be repeated here.

[0057] The above is a detailed introduction to a ventilation device and energy storage system provided in the embodiments of the present application. Specific examples are used in this application to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A ventilation device, characterized in that: include: A frame (10) having a first vent (11) and a second vent (12); a first cavity plate (20) disposed in the frame (10) and connected to the frame (10), wherein the first cavity plate (20) has a plurality of first raised sections (21); A second cavity plate (80) is disposed in the frame (10) and connected to the frame (10), wherein the second cavity plate (80) has a plurality of second raised sections (81); the raised directions of the second raised sections (81) are opposite to those of the first raised sections (21); An air duct (30) communicating with the first vent (11) and the second vent (12) is formed between the first cavity plate (20) and the second cavity plate (80).

2. The ventilation device according to claim 1, characterized in that Also includes: A plurality of baffles (40) are arranged in the air duct (30), wherein the baffles (40) include a first surface (41) and a second surface (42) facing each other, wherein the first surface (41) is a convex surface arranged toward the first vent (11), and the second surface (42) is a concave surface arranged toward the second vent (12).

3. The ventilation device according to claim 2, characterized in that The first raised section (21) and the second raised section (81) are arranged opposite to each other, the air duct (30) has a plurality of air duct sections (31) connected end to end, and the air duct sections (31) are located between the first raised section (21) and the second raised section (81), each of the air duct sections (31) has a gradually expanding section (312), a wide section (313) and a gradually contracting section (314) connected in sequence along a first direction (X), at least a portion of the baffle (40) is arranged in the gradually expanding section (312), and the direction from the first vent (11) to the second vent (12) is the first direction (X).

4. The ventilation device according to claim 3, characterized in that The air duct section (31) further comprises a narrow section (311), wherein the narrow section (311) is connected to the gradually contracting section (314) and the gradually expanding section (312) in the next air duct section (31).

5. The ventilation device according to claim 1, characterized in that Also includes: The sound-absorbing cotton (50) is at least partially disposed on the first cavity plate (20), and / or the sound-absorbing cotton (50) is at least partially disposed on the second cavity plate (80).

6. The ventilation device according to claim 2, characterized in that Also includes: The sound-absorbing cotton (50) is at least partially disposed on the first surface (41), and / or the sound-absorbing cotton (50) is at least partially disposed on the second surface (42).

7. The ventilation device according to claim 1, characterized in that It comprises a plurality of air ducts (30), and the plurality of air ducts (30) are arranged in an array in the frame (10).

8. The ventilation device according to claim 1, characterized in that The first cavity plate (20) and the second cavity plate (80) are both wavy.

9. The ventilation device according to claim 2, characterized in that The first cavity plate (20) is connected to the frame (10) by welding, the second cavity plate (80) is connected to the frame (10) by welding, and the baffle (40) is connected to the frame (10) by welding.

10. The ventilation device according to claim 1, characterized in that Also includes: The vent assembly (60) is covered on the first vent (11), and the vent assembly (60) is provided with a plurality of through holes (61) communicating with the first vent (11).

11. An energy storage system, characterized in that: include: Energy storage cabinet; The ventilation device according to any one of claims 1 to 10, wherein the ventilation device is mounted on the energy storage cabinet.

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