Energy storage device

Abstract

The utility model belongs to the technical field of energy storage equipment, and discloses an energy storage device, which comprises an energy storage device main body, a heat dissipation cabinet and a silencer, one side of the energy storage device main body is provided with a heat dissipation chamber, and the heat dissipation chamber is provided with a first mounting port; the silencer comprises an air guide piece and a silencing shutter, the silencing shutter comprises a frame, a plurality of blades and a reinforcing structure, the blades are connected with the reinforcing structure, the air guide piece is located between the heat dissipation cabinet and the frame, and the two sides of the air guide piece are tightly attached to the heat dissipation cabinet and the frame respectively so that an air guide channel can be defined between the air outlet and the blades; the air guide piece, the frame and the reinforcing structure are all filled with sound absorption pieces. The silencing shutters are matched with the air guide pieces, the space utilization rate of the silencer is increased, the size of the silencer is reduced, and the energy efficiency and the heat dissipation efficiency of the whole machine are improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, and in particular to an energy storage device. Background Technology

[0002] Ventilation and sound-absorbing louvers are widely used in industrial, commercial, and residential applications, especially in entrance and exit scenarios requiring ventilation. While ensuring airflow, these louvers not only provide sound insulation and absorption but also offer aesthetic appeal due to their thinness and space-saving design. However, for high-power energy storage and thermal management systems, the cooling fans have large air volumes, high velocities, and high outlet temperatures. Existing louvers cannot meet these requirements. Currently available louvers, when used with such energy storage devices, exhibit significant resistance due to the high ventilation and heat dissipation demands, making it difficult to guarantee noise reduction and potentially leading to problems such as heat loss and louver blade deformation. Utility Model Content

[0003] The purpose of this invention is to provide an energy storage device that has high strength, good noise reduction effect and high heat dissipation efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution: an energy storage device, comprising an energy storage device body, a heat dissipation cabinet, and a silencer. A heat dissipation chamber is provided on one side of the energy storage device body, and the heat dissipation chamber has a first mounting opening. The heat dissipation cabinet is installed inside the heat dissipation chamber, and the air outlet of the heat dissipation cabinet faces the first mounting opening. The silencer includes an air guide and sound-absorbing louvers. The sound-absorbing louvers are connected to the energy storage device body and cover the first mounting opening. The sound-absorbing louvers include a frame, multiple blades, and a reinforcing structure. The multiple blades are vertically spaced within the frame and are all connected to the reinforcing structure. The air guide is located between the heat dissipation cabinet and the frame, and both sides of the air guide are respectively close to the heat dissipation cabinet and the frame to define an air guide channel between the air outlet and the blades. Sound-absorbing materials are filled within the air guide, the frame, and the reinforcing structure.

[0005] Preferably, the reinforcing structure includes a vertical reinforcing plate, the two ends of which are connected to the inner top surface and the inner bottom surface of the frame, respectively.

[0006] Preferably, the reinforcing plate has a guide portion on the side facing the air outlet, and the cross-section of the guide portion is triangular.

[0007] Preferably, there are multiple reinforcing plates, which are spaced apart along the length of the blade, and the number of reinforcing plates is proportional to the length of the blade.

[0008] Preferably, the inner diameter of the air guide gradually increases along the air outlet direction.

[0009] Preferably, in the vertical direction, both sides of the blade are convex curved surfaces or planes.

[0010] Preferably, in the vertical direction, one side of the blade is a convex curved surface and the other side is a concave curved surface.

[0011] Preferably, in the vertical direction, one side of the blade is a convex V-shaped surface, and the other side is a concave V-shaped surface.

[0012] Preferably, in the air outlet direction, the end of the blade that is horizontally away from the air outlet is inclined upwards or downwards.

[0013] Preferably, the tilt angles of the plurality of blades increase sequentially along the tilt direction of the end of the blade away from the air outlet in the vertical direction.

[0014] The beneficial effects of this utility model are as follows: By incorporating air guides and sound-absorbing louvers, the air guides act as a seal between the air outlet of the heat dissipation cabinet and the sound-absorbing louvers, preventing hot air from leaking into the heat dissipation chamber and causing problems such as hot air backflow and noise leakage. Furthermore, it can slow down and depressurize the hot air, prolonging its residence time and increasing the noise reduction effect. The combination of the sound-absorbing louvers and air guides achieves thermal isolation between the hot air exhausted from the heat dissipation cabinet and the fresh air drawn in, effectively reducing the heat island effect and improving the overall energy efficiency and heat dissipation efficiency. The blades of the sound-absorbing louvers are connected to the reinforcing structure, improving the structural strength of the blades while ensuring ventilation and preventing blade deformation. The sound-absorbing components inside the air guides, the frame, and the reinforcing structure work together to absorb noise throughout the entire path of hot air flow, significantly enhancing the noise reduction effect of the silencer. In addition, the air guides are installed between the heat dissipation cabinet and the sound-absorbing louvers, and the reinforcing structure is located within the frame, effectively improving the space utilization of the silencer, reducing its size, and enhancing its practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the energy storage device of this utility model;

[0016] Figure 2 This is a front view of the sound-absorbing louver of this utility model;

[0017] Figure 3 yes Figure 2 Cross-sectional view at point AA;

[0018] Figure 4 This is a cross-sectional view of the sound-absorbing louver of the first embodiment of this utility model;

[0019] Figure 5 This is a cross-sectional view of the sound-absorbing louver of the second embodiment of this utility model;

[0020] Figure 6 This is a cross-sectional view of the sound-absorbing louver of the third embodiment of this utility model;

[0021] Figure 7 This is a cross-sectional view of the sound-absorbing louver of the fourth embodiment of this utility model;

[0022] Figure 8 This is a cross-sectional view of the sound-absorbing louver of the fifth embodiment of this utility model;

[0023] Figure 9 This is a cross-sectional view of the sound-absorbing louver of the sixth embodiment of this utility model;

[0024] Figure 10 This is a cross-sectional view of the sound-absorbing louver of the seventh embodiment of this utility model;

[0025] Figure 11 This is a cross-sectional view of the sound-absorbing louver of the eighth embodiment of this utility model;

[0026] Figure 12 This is a cross-sectional view of the sound-absorbing louver of the ninth embodiment of this utility model;

[0027] Figure 13 This is a cross-sectional view of the sound-absorbing louver of the tenth embodiment of this utility model;

[0028] Figure 14 This is a cross-sectional view of the sound-absorbing louver of the eleventh embodiment of this utility model;

[0029] Figure 15 This is a cross-sectional view of the sound-absorbing louver of the twelfth embodiment of this utility model;

[0030] Figure 16 This is a cross-sectional view of the sound-absorbing louver of the thirteenth embodiment of this utility model.

[0031] In the picture:

[0032] 100. Energy storage device main body; 110. Heat dissipation chamber; 111. First mounting port; 112. Second mounting port; 120. Frame bracket;

[0033] 200. Cooling cabinet; 210. Air outlet; 220. Air inlet;

[0034] 300. Silencer; 310. Air guide; 320. Silencing louver; 321. Frame; 322. Blade; 3221. Heat dissipation vent; 323. Reinforcing structure; 3231. Guide section. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] Currently available louvers cannot meet the demands of high-power energy storage thermal management systems, which have large air volume, high flow rate, and high outlet temperature. Existing louvers are unable to adapt to these conditions, resulting in high ventilation and heat dissipation requirements and very high resistance. This makes it difficult to guarantee noise reduction and can also lead to problems such as heat not being able to dissipate in time and louver blade deformation under high wind resistance.

[0040] In related technologies, some energy storage thermal management systems have begun to use multi-layered silencers to address the aforementioned problems. The silencer's noise-reducing blades are arranged in multiple layers along the airflow direction of the cooling fan, thus reducing the noise of the hot air multiple times and achieving noise reduction for high-volume fans. However, these silencers are very wide in the airflow direction of the cooling fan, some even protruding more than a meter beyond the energy storage container. This not only makes loading and unloading inconvenient but also seriously affects the layout of the energy storage thermal management system.

[0041] Reference Figures 1 to 15 As shown, an energy storage device according to an embodiment of this application includes an energy storage device body 100, a heat dissipation cabinet 200, and a silencer 300. The energy storage device body 100 is composed of a container and a thermal management system installed inside the container. A heat dissipation chamber 110 is provided on one side of the energy storage device body 100. The heat dissipation chamber 110 is formed by a plurality of high-strength frame supports 120. The heat dissipation chamber 110 is provided with a first installation port 111 and a second installation port 112.

[0042] The heat dissipation cabinet 200 is installed inside the heat dissipation chamber 110. The air outlet 210 of the heat dissipation cabinet 200 is set towards the first mounting port 111, and the air inlet 220 of the heat dissipation cabinet 200 is set towards the second mounting port 112.

[0043] The silencer 300 includes an air guide 310 and a sound-absorbing louver 320. The air guide 310 is a rectangular ring structure that matches the shape of the first mounting port 111. The sound-absorbing louver 320 is connected to the main body 100 of the energy storage device and covers the first mounting port 111. The sound-absorbing louver 320 includes a frame 321, multiple blades 322, and a reinforcing structure 323. The multiple blades 322 are arranged vertically at intervals within the frame 321 and are all connected to the reinforcing structure 323. A heat dissipation port 3221 for the flow of heated air is formed between two adjacent blades 322, the reinforcing structure 323, and the frame 321. Optionally, the frame 321 of the sound-absorbing louver 320 can be fixedly connected to the frame bracket 120 by means of screwing, snap-fitting, welding, etc., thereby ensuring the installation stability of the sound-absorbing louver 320. The frame 321 of the sound-absorbing louver 320 can also be hinged to one side of its frame bracket 120, and locked to another frame bracket 120 through a locking structure on the other side, so as to facilitate the user to open or close the heat dissipation chamber 110 and improve the user experience.

[0044] The air guide 310 is installed on the frame bracket 120 and located between the heat dissipation cabinet 200 and the frame 321. The two sides of the air guide 310 are respectively in close contact with the air outlet 210 of the heat dissipation cabinet 200 and the frame 321, defining an airflow channel between the air outlet 210 and the blades 322. The inner edge of the air guide 310 does not exceed the outer edge of the thermal management unit; that is, the projection of the inner edge of the air guide 310 on the air outlet surface is located inside the projection of the heat dissipation cabinet 200 on the air outlet surface. The air guide 310, frame 321, and reinforcing structure 323 are all hollow sandwich structures, filled with sound-absorbing materials. Optionally, the sound-absorbing materials can be sound-absorbing cotton, sound-absorbing cloth, polyester fiber, or sound-insulating felt, etc., which will not be described in detail here.

[0045] Understandably, by setting up the air guide 310 and the sound-absorbing louver 320, on the one hand, the air guide 310 can play a sealing role between the air outlet 210 of the heat dissipation cabinet 200 and the sound-absorbing louver 320, so that the hot air blown out of the air outlet 210 can be completely discharged from the sound-absorbing louver 320, preventing the hot air blown out of the air outlet 210 from leaking into the heat dissipation chamber 110, which would cause problems such as hot air backflow and noise leakage. Furthermore, since the air outlet 210 is usually only located in the upper half (or lower half) of the heat dissipation cabinet 200, and the air guide 310 and the sound-absorbing louver 320 are matched with the first mounting port 111 formed by the frame bracket 120, that is, the air guide 310 and the sound-absorbing louver 320 are continuous from top to bottom, the air outlet area of ​​the air guide channel formed by the air guide 310 (i.e., the total projected area of ​​the heat dissipation port 3221 on the air outlet surface) and the total flow area of ​​the sound-absorbing louver 320 (i.e., the projected area of ​​the sound-absorbing louver 320 on the air outlet surface) are much larger than the air outlet area on the front of the air outlet 210. The hot air blown out of the air outlet 210 enters the air guide channel, which disperses the airflow and significantly reduces the volume of hot air. This ensures that the flow velocity of the hot air at the heat dissipation port 3221 of the sound-absorbing louver 320 is reduced as much as possible, thereby reducing wind resistance loss. This also increases the residence time of the hot air through the silencer 300, increasing the noise reduction and effectively reducing the noise of airflow.

[0046] On the other hand, the sound-absorbing louvers 320 and the air guide 310 work together. The air guide 310 can achieve thermal isolation between the hot air exhausted from the heat dissipation cabinet 200 and the fresh air drawn in, while the sound-absorbing louvers 320 can increase the physical distance of the thermal isolation, thereby effectively reducing the heat island effect and improving the overall energy efficiency and heat dissipation efficiency of the unit.

[0047] Compared to filling the blades 322 with sound-absorbing components, by setting up a reinforcing structure 323, the blades 322 of the sound-absorbing louver 320 are connected to the reinforcing structure 323, resulting in higher integrity of the blades 322. This improves the structural strength of the blades 322 while ensuring ventilation, thereby enhancing the impact resistance of each blade 322 and preventing deformation. The sound-absorbing components inside the air guide 310, the frame 321, and the reinforcing structure 323 work together to absorb noise throughout the entire path of hot air flow, significantly enhancing the noise reduction effect of the silencer 300.

[0048] Furthermore, compared to setting multiple layers of blades in the air outlet direction (i.e., from the heat dissipation cabinet 200 to the silencer 300 in the horizontal direction), the air guide 310 is installed between the heat dissipation cabinet 200 and the sound-absorbing louvers 320, and the reinforcing structure 323 is set in the frame 321. Under the premise of ensuring noise reduction effect and heat dissipation efficiency, the space utilization of the silencer 300 can be effectively improved. The blades 322 can be set with only one layer in the air outlet direction, reducing the volume of the silencer 300, making it easier to install and remove the silencer 300 and facilitate the layout of the energy storage system. This allows the silencer 300 to adapt to usage scenarios with limited space and improves the practicality of the silencer 300.

[0049] It should be noted that, in order to facilitate the absorption of noise by the sound-absorbing component, the inner wall of the air guide 310, the inner wall of the frame 321, and the side wall of the reinforcing structure 323 are all provided with multiple sound-absorbing holes. The air guide 310, the frame 321, and the reinforcing structure 323 can absorb noise into the sound-absorbing component through the sound-absorbing holes, thereby further enhancing the noise reduction effect of the silencer 300.

[0050] It should also be noted that multiple sound-absorbing louvers 320 can be installed, with the multiple sound-absorbing louvers 320 spaced apart vertically, and the total height of the multiple sound-absorbing louvers 320 equal to the height of the first mounting port 111. By setting multiple sound-absorbing louvers 320 and using them in combination, problems such as excessive length of a single sound-absorbing louver 320 and insufficient strength of the long side of the frame 321 are avoided, further improving the structural strength of the sound-absorbing louvers 320. In addition, users can also set different numbers of sound-absorbing louvers 320 according to the height of the energy storage device, effectively improving the modularity of the silencer 300.

[0051] It should also be noted that a silencer 300 is also provided at the second mounting port 112. The silencer 300 at the second mounting port 112 can absorb the noise when the heat dissipation cabinet 200 draws in cold air, thereby reducing the overall operating noise of the energy storage device.

[0052] Furthermore, the inner diameter of the air guide 310 gradually increases along the air outlet 210. Specifically, along the air outlet 210, the thickness of the inner wall of the air guide 310 gradually decreases. That is, the inner wall of the air guide 310 has a certain decreasing slope in the horizontal direction from the heat dissipation cabinet 200 to the sound-absorbing louver 320, so that the inner wall of the air guide 310 has a horn-shaped structure that opens towards the sound-absorbing louver 320.

[0053] By gradually increasing the inner diameter of the air guide 310, the air outlet area difference between the air guide 310 and the air outlet 210 can be gradually increased in the air outlet direction, further guiding the hot air entering the air guide channel to diffuse and flow, and enhancing the deceleration and noise reduction effect of the air guide 310 on the hot air.

[0054] Reference Figure 2 As shown, it can be understood that the reinforcing structure 323 includes a vertical reinforcing plate. In the air outlet direction of the air outlet 210, the width of the reinforcing plate, the width of the blade 322, and the height of the frame 321 are equal. The two ends of the reinforcing plate are connected to the inner top surface and the inner bottom surface of the frame 321, respectively.

[0055] By setting up reinforcing plates, on the one hand, multiple blades 322 are connected to the reinforcing plates, which effectively simplifies the structure of the sound-absorbing louvers 320 while ensuring sufficient structural strength for the blades 322; on the other hand, according to the noise reduction theory formula:

[0056] ΔL=Φ(a)*L*P / S;

[0057] P = 2*(D1 + D2);

[0058] S = D1 * D2

[0059] Wherein, ΔL is the sound attenuation of the silencer 300 at a certain flow rate (dB); Φ(a) is the static noise reduction coefficient (dB) obtained from the sound-absorbing component a0; a0 is the sound absorption coefficient measured by the standing wave tube method, and in this embodiment, Φ(a) = 1.6a0; L is the protruding thickness of the silencer louver 320 (i.e., the height of the silencer louver 320 in the air outlet 210 in the air outlet direction) (m); P is the perimeter of the cross section inside the single air duct (m); S is the cross section area inside the single air duct (㎡); D1 is the length of the blade 322 (m), and D2 is the distance between two adjacent blades 322 (m).

[0060] It can be seen that by adding a reinforcing plate, both the perimeter P and the area S of the single air duct cross-section in the formula increase. Since the rate of area increase is usually greater, the sound attenuation of the silencer 300 will decrease significantly. Tests show that after adding a reinforcing plate, the sound attenuation is more than twice that without it.

[0061] Furthermore, multiple reinforcing plates are provided, and the multiple reinforcing plates are spaced apart along the length direction of the blade 322, and the number of reinforcing plates is proportional to the length dimension of the blade 322.

[0062] To optimize the overall stress structure of the sound-absorbing louver 320, reinforcing plates are evenly spaced, and the number of reinforcing plates is proportional to the length of the blade 322. For example, when the length of the blade 322 exceeds 1m, the number of reinforcing plates increases by one for every 0.5m increase in blade length. By setting multiple reinforcing plates, the longer blade 322 can be reinforced, effectively improving the overall structural stability of the sound-absorbing louver 320.

[0063] Reference Figure 1 and Figure 3 As shown, it can be understood that the reinforcing plate has a guide portion 3231 on the side facing the air outlet 210 (i.e., the windward side of the reinforcing plate), and the cross-section of the guide portion 3231 is triangular.

[0064] By setting a guide portion 3231 with a triangular cross-section, the guide portion 3231 can reduce the contact area between the reinforcing plate and the hot air, guide the hot air to quickly enter the heat dissipation port 3221, which helps to reduce wind resistance, further improve the heat dissipation efficiency of the sound-absorbing louver 320 and reduce the impact on the sound-absorbing louver 320.

[0065] Reference Figure 4 and Figure 5 As shown, it can be understood that both sides of blade 322 are planes in the vertical direction.

[0066] Setting both sides of the blade 322 as flat can greatly simplify the structure of the blade 322, facilitate the design and processing of the blade 322, and reduce the production cost of the sound-absorbing louver 320.

[0067] In some embodiments, in the air outlet direction of the air outlet 210, the blades 322, which are flat on both sides, are horizontally inclined upward or downward at the end away from the air outlet 210.

[0068] Users can set the arrangement direction of the blades 322, which are flat on both sides, to adapt to different airflow requirements according to actual conditions. For example, in cases where the manufacturing process is simple and the airflow blows downwards towards the bottom of the container, the end of the blades 322, which are flat on both sides, away from the air outlet 210 can be tilted downwards. In cases where the manufacturing process is simple and the airflow blows upwards towards the bottom of the container, the end of the blades 322, which are flat on both sides, away from the air outlet 210 can be tilted upwards.

[0069] By tilting the blades 322, which are flat on both sides, the hot air and the horizontal air intake are offset at a large angle, enhancing the physical insulation between the hot and fresh air and further improving the heat dissipation efficiency of the sound-absorbing louvers 320. In particular, when the end of the blades 322 away from the air outlet 210 is tilted upward, that is, when the air is blown upward toward the bottom of the container, the noise propagates upward and is dispersed and weakened in the large space. This avoids problems such as airflow reflection caused by the airflow directly blowing onto the metal of the opposite container, directly eliminating the reflection effect of noise and significantly reducing the reflected noise between multiple energy storage devices.

[0070] Reference Figures 6 to 8 As shown, it can be understood that in the vertical direction, both sides of the blade 322 are convex curved surfaces, and at this time, the blade 322 has an elliptical cross-sectional shape.

[0071] Both sides of the blade 322 are designed as convex curved surfaces. When hot air flows on the surface of the blade 322, the curved surfaces can guide the flow of hot air, reduce the flow resistance of hot air, and ensure the heat dissipation efficiency of the sound-absorbing louver 320.

[0072] In some embodiments, in the air outlet direction of the air outlet 210, the elliptical blade 322 is inclined upward or downward at the end that is horizontally away from the air outlet 210.

[0073] Users can set the arrangement direction of the elliptical blades 322 according to actual conditions to adapt to different airflow requirements. For example, for situations with low flow resistance, slightly lower noise reduction requirements, and airflow blowing parallel to the top of the container, the elliptical blades 322 can be arranged horizontally. For situations with low flow resistance, slightly lower noise reduction requirements, and airflow blowing upward toward the top of the container, the end of the elliptical blades 322 away from the air outlet 210 can be tilted downward. For situations with low flow resistance, slightly lower noise reduction requirements, and airflow blowing downward toward the bottom of the container, the end of the elliptical blades 322 away from the air outlet 210 can be tilted upward.

[0074] The elliptical blades 322 are tilted so that the hot air and the horizontal air intake are offset at a large angle, which enhances the physical insulation effect between the hot air and the fresh air, and further improves the heat dissipation efficiency of the sound-absorbing louvers 320.

[0075] Reference Figures 9 to 12 As shown, it can be understood that in the vertical direction, one side of the blade 322 is a convex curved surface and the other side is a concave curved surface. At this time, the cross-sectional shape of the blade 322 is crescent-shaped.

[0076] The cross-section of blade 322 is set to a crescent shape. While ensuring sufficient air outlet area between adjacent blades 322, hot air is guided to be blown out at an angle towards the opening of the crescent-shaped blade 322. Users can set the arrangement direction of the crescent-shaped blades 322 according to actual conditions to adapt to different airflow requirements. For example, for situations with high noise reduction requirements, low flow resistance requirements, and airflow blowing downwards towards the bottom of the container, the lower side of blade 322 can be set as a concave curved surface, and the upper side of blade 322 can be set as a convex curved surface, making the cross-section of blade 322 a crescent shape with the opening facing downwards. For situations with high noise reduction requirements, low flow resistance requirements, and airflow blowing upwards towards the top of the container, the upper side of blade 322 can be set as a concave curved surface, and the lower side of blade 322 can be set as a convex curved surface, making the cross-section of blade 322 a crescent shape with the opening facing upwards.

[0077] By setting the blades 322 to a crescent shape, the hot air and the horizontal air intake are staggered at a large angle, which enhances the physical insulation effect between the hot air and the fresh air, and further improves the heat dissipation efficiency of the sound-absorbing louver 320.

[0078] Users can set the arrangement direction of the crescent-shaped blades 322 according to actual conditions to adapt to different airflow requirements. For example, when facing situations with high noise reduction requirements, low flow resistance requirements, and a large angle of downward airflow directed towards the bottom of the container, the end of the crescent-shaped blades 322 furthest from the air outlet 210 can be tilted downwards. When facing situations with high noise reduction requirements, low flow resistance requirements, and a large angle of upward airflow directed towards the bottom of the container, the end of the crescent-shaped blades 322 furthest from the air outlet 210 can be tilted upwards.

[0079] With the crescent-shaped blades 322 guiding the airflow at an angle, arranging the crescent-shaped blades 322 at an angle can further increase the airflow angle and enhance the noise reduction effect.

[0080] Reference Figures 13 to 16 As shown, it can be understood that in the vertical direction, one side of the blade 322 is a convex V-shaped surface, and the other side is a concave V-shaped surface. At this time, the cross-section of the blade 322 is V-shaped.

[0081] The cross-section of blade 322 is set to a V-shape. While ensuring the simplicity of the blade 322 structure, sufficient air outlet area is guaranteed between adjacent blades 322, guiding hot air to be blown out at an angle towards the opening direction of the V-shaped blade 322. Users can set the arrangement direction of the V-shaped blades 322 according to actual conditions to adapt to different airflow requirements. For example, for situations with simple manufacturing processes, high noise reduction requirements, and airflow blowing downwards towards the bottom of the container, the lower side of blade 322 can be set as a concave V-shaped surface, and the upper side of blade 322 can be set as a convex V-shaped surface, making the cross-section of blade 322 a V-shape with the opening facing downwards. For situations with simple manufacturing processes, high noise reduction requirements, and airflow blowing upwards towards the top of the container, the upper side of blade 322 can be set as a concave V-shaped surface, and the lower side of blade 322 can be set as a convex V-shaped surface, making the cross-section of blade 322 a V-shape with the opening facing upwards.

[0082] Setting the blades 322 in a V-shape creates a large angle between the hot air and the horizontal air intake, enhancing the physical insulation between the hot and fresh air, further improving the heat dissipation efficiency of the sound-absorbing louvers 320, and simplifying the structure of the blades 322, thus reducing the production cost of the blades 322.

[0083] Users can set the arrangement direction of the V-shaped blades 322 according to actual conditions to adapt to different airflow requirements. For example, in cases where the manufacturing process is simple, noise reduction requirements are high, and the airflow is directed downwards at a large angle towards the bottom of the container, the end of the V-shaped blades 322 furthest from the air outlet 210 can be tilted downwards. In cases where the manufacturing process is simple, noise reduction requirements are high, and the airflow is directed upwards at a large angle towards the bottom of the container, the end of the V-shaped blades 322 furthest from the air outlet 210 can be tilted upwards.

[0084] With the V-shaped blades 322 guiding the airflow at an angle, arranging the crescent-shaped V-shaped blades 322 at an angle can further increase the airflow angle and enhance the noise reduction effect.

[0085] It is understood that in some embodiments, the air inlet and outlet surfaces of the heat dissipation cabinet 200 are on the same plane, that is, the air inlet 220 and the air outlet 210 of the heat dissipation cabinet 200 are located on the same side of the heat dissipation cabinet 200 (the air outlet 210 is usually located above the air inlet 220). In order to prevent the air outlet at the sound-absorbing louver 320 from being re-drawn into the heat dissipation cabinet 200, the blades 322 need to be tilted in sequence. At this time, in the vertical direction along the tilt direction of the end of the blade 322 away from the air outlet 210, the tilt angle of multiple blades 322 increases sequentially. The tilt angle of the blade 322 is the angle between the line connecting the two ends of the blade 322 and the horizontal plane along the air outlet 210.

[0086] Specifically, the blades 322 of the sound-absorbing louver 320 are crescent-shaped or V-shaped with their openings facing downwards. When the end of the crescent-shaped or V-shaped blade 322 away from the air outlet 210 is tilted downwards, in order to prevent the downward-facing air outlet at the sound-absorbing louver 320 from being re-drawn into the heat dissipation cabinet 200, the tilt angle of multiple blades 322 increases sequentially along the tilt direction of the end of the blade 322 away from the air outlet 210 in the vertical direction (i.e., from top to bottom). This results in the blades 322 in the sound-absorbing louver 320 that are lower and closer to the air inlet 220 having a larger tilt angle, and the hot air has a larger diffusion angle closer to the air inlet 220, reducing the accumulation of hot air and preventing the hot air from being re-drawn back.

[0087] The blades 322 of the sound-absorbing louver 320 are crescent-shaped or V-shaped with their openings facing upwards. When the end of the crescent-shaped or V-shaped blade 322 away from the air outlet 210 is tilted upwards, in order to prevent the downward-facing air outlet at the sound-absorbing louver 320 from being re-drawn into the heat dissipation cabinet 200, the tilt angle of multiple blades 322 increases sequentially along the tilt direction (i.e., from bottom to top) of the end of the blade 322 away from the air outlet 210 in the vertical direction. This results in the blades 322 in the sound-absorbing louver 320 having a larger tilt angle the higher they are and the further away from the air inlet 220, allowing hot air to diffuse rapidly at the top of the container and preventing hot air from being re-drawn back.

[0088] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An energy storage device, characterized in that, include: The energy storage device body (100) has a heat dissipation chamber (110) on one side, and the heat dissipation chamber (110) has a first installation port (111). A heat dissipation cabinet (200) is installed inside the heat dissipation chamber (110), and the air outlet (210) of the heat dissipation cabinet (200) is set towards the first mounting port (111); The silencer (300) includes an air guide (310) and a sound-absorbing louver (320). The sound-absorbing louver (320) is connected to the main body (100) of the energy storage device and covers the first mounting port (111). The sound-absorbing louver (320) includes a frame (321), multiple blades (322), and a reinforcing structure (323). The multiple blades (322) are arranged vertically at intervals within the frame (321) and are all connected to the reinforcing structure. (323) Connection, the air guide (310) is located between the heat dissipation cabinet (200) and the frame (321), and the two sides of the air guide (310) are respectively close to the heat dissipation cabinet (200) and the frame (321) to define an air guide channel between the air outlet (210) and the blade (322). The air guide (310), the frame (321) and the reinforcing structure (323) are all filled with sound-absorbing materials.

2. The energy storage device according to claim 1, characterized in that, The reinforcing structure (323) includes a vertical reinforcing plate, the two ends of which are connected to the inner top surface of the frame (321) and the inner bottom surface of the frame (321), respectively.

3. The energy storage device according to claim 2, characterized in that, The reinforcing plate has a guide portion (3231) on the side facing the air outlet (210), and the cross-section of the guide portion (3231) is triangular.

4. The energy storage device according to claim 2, characterized in that, The reinforcing plate is provided in multiple ways, and the multiple reinforcing plates are spaced apart along the length direction of the blade (322), and the number of the reinforcing plates is proportional to the length dimension of the blade (322).

5. The energy storage device according to claim 1, characterized in that, The inner diameter of the air guide (310) gradually increases along the air outlet (210) in the air outlet direction.

6. The energy storage device according to claim 1, characterized in that, In the vertical direction, both sides of the blade (322) are convex curved surfaces or planes.

7. The energy storage device according to claim 1, characterized in that, In the vertical direction, one side of the blade (322) is a convex curved surface and the other side is a concave curved surface.

8. The energy storage device according to claim 1, characterized in that, In the vertical direction, one side of the blade (322) is a convex V-shaped surface, and the other side is a concave V-shaped surface.

9. The energy storage device according to any one of claims 6-8, characterized in that, In the air outlet (210) air outlet direction, the blade (322) is horizontally away from the air outlet (210) with one end inclined upward or downward.

10. The energy storage device according to claim 9, characterized in that, Along the vertical direction of the tilt direction of the blade (322) away from the air outlet (210), the tilt angle of the plurality of blades (322) increases sequentially.

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