Exhaust hood of energy storage converter and outdoor cabinet of energy storage system

Abstract

The utility model relates to the exhaust hood technology, and discloses an exhaust hood of an energy storage converter and an outdoor cabinet of an energy storage system, the exhaust hood is arranged in the outdoor cabinet of the energy storage system, and an air inlet of the exhaust hood is matched with and connected to an air outlet of the energy storage converter arranged in the outdoor cabinet; the position where an air inlet of the exhaust hood is located serves as the front face, noise reduction cotton covering the front face, the upper side face, the lower side face, the left side face and the right side face is arranged in the exhaust hood, a noise reduction cotton plate is arranged on the back face of the exhaust hood, and the exhaust hood is further provided with a shutter assembly which penetrates through the noise reduction cotton plate and is embedded into the exhaust hood to serve as an air outlet. The transverse size and the longitudinal size of the front face of the exhaust hood are both larger than the transverse size and the longitudinal size of an exhaust outlet of the energy storage converter. The installation height of the shutter assembly is lower than the arrangement height of the air inlet of the exhaust hood. The utility model aims to reduce the exhaust noise and the maintenance cost of the energy storage converter, improve the exhaust efficiency and the system performance, and prolong the service life of equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of exhaust hood, especially relates to a kind of exhaust hood of energy storage converter and the outdoor cabinet of energy storage system. BACKGROUND

[0002] With the rapid development of energy storage system technology, the exhaust heat dissipation structure of energy storage converter is more and more mature, and the traditional exhaust heat dissipation structure is as follows: an air outlet is opened at the height of the energy storage system outdoor cabinet body and the energy storage converter air outlet, and then an exhaust hood is installed outside the energy storage system outdoor cabinet, which is matched with the position and size of the air outlet, and the heat is guided to the outside of the energy storage system outdoor cabinet through the exhaust hood, ensuring that the energy storage converter meets the heat dissipation requirements during operation. The exhaust hood needs to be equipped with a filter screen and a waterproof rubber strip.

[0003] During the operation of the energy storage converter, the exhaust fan produces a lot of environmental noise, and the exhaust air entering the exhaust hood will produce a lot of environmental noise. Moreover, the energy storage converter uses a turbine fan as an air outlet fan, and the air flow direction is straight in and horizontal out. When the air flow is discharged, it will directly impact the side surface of the exhaust hood. In addition, the internal space of the traditional exhaust hood is relatively limited, which makes it difficult to effectively correct the direction of the air flow when it enters the exhaust hood, resulting in an increase in exhaust resistance and a decrease in area utilization, ultimately reducing the overall efficiency of the system. It may also cause energy loss and affect the performance of the energy storage system.

[0004] Moreover, the exhaust hood in the existing exhaust heat dissipation structure is installed outside the energy storage system outdoor cabinet, which not only protrudes from the cabinet body and occupies the installation size of the cabinet body, but also requires a waterproof rubber strip to be installed on the bonding surface between the two. The rubber strip will be exposed to the outdoor environment for a long time, which will cause it to age severely and affect the waterproof effect. Therefore, the waterproof rubber strip needs to be replaced frequently, increasing the maintenance cost.

[0005] Although the existing exhaust hood has a filter screen to block sand and dust, the height of the exhaust hood and the energy storage converter air outlet is flush, and the energy storage converter is placed close to the wall, which increases the risk of sand and water vapor entering the energy storage converter directly under extreme environmental conditions (such as sandstorm and high humidity), causing equipment failure and corrosion, and affecting the service life of the equipment.

[0006] The above content is only used to assist in understanding the technical scheme of the utility model, and does not mean that the above content is prior art. UTILITY MODEL CONTENT

[0007] The utility model provides an exhaust hood for an energy storage converter and an outdoor cabinet for an energy storage system, which aims to reduce the exhaust noise and maintenance cost of the energy storage converter, improve the exhaust efficiency and system performance, and prolong the service life of the equipment.

[0008] To achieve the above objectives, this utility model proposes an exhaust hood for an energy storage converter. The exhaust hood is installed in the outdoor cabinet of the energy storage system, and the air inlet of the exhaust hood is adapted to and connected to the exhaust port of the energy storage converter installed in the outdoor cabinet. Taking the position of the air inlet of the exhaust hood as the front, the interior of the exhaust hood is provided with noise-reducing cotton covering the front, upper side, lower side, left side, and right side. The back of the exhaust hood is provided with a noise-reducing cotton board. The exhaust hood is also provided with a louver assembly that passes through the noise-reducing cotton board and is embedded inside the exhaust hood as an air outlet. The horizontal and vertical dimensions of the front of the exhaust hood are both larger than the horizontal and vertical dimensions of the exhaust port of the energy storage converter. The installation height of the louver assembly is lower than the setting height of the air inlet of the exhaust hood.

[0009] Optionally, a buffer cotton frame is provided at the joint between the air inlet of the exhaust hood and the exhaust outlet of the energy storage converter.

[0010] Optionally, the exhaust hood is divided into an upper structure and a lower structure, and the upper structure and the lower structure are detachably connected; the air inlet of the exhaust hood is located in the upper structure, and the louver assembly is installed in the lower structure.

[0011] Optionally, the upper and lower structures are connected by a threaded connection.

[0012] Optionally, the louver assembly includes a louver body; the back of the louver body faces the inside of the exhaust hood and is provided with filter cotton; the filter cotton is attached to the frame on the back of the louver body by a pressure strip; the bottom of the louver body is also provided with one or more drainage holes.

[0013] Optionally, both the noise-reducing cotton and the noise-reducing cotton board adopt a porous fiber structure.

[0014] This utility model further proposes an outdoor cabinet for an energy storage system, wherein the outdoor cabinet is provided with an exhaust hood for the energy storage converter as described above.

[0015] Optionally, the outdoor cabinet is provided with a rear door for the equipment compartment, the noise-reducing cotton panel of the exhaust hood is fitted to the inside of the rear door for the equipment compartment, and the louver assembly of the exhaust hood passes through the rear door for the equipment compartment and the noise-reducing cotton panel in sequence and is embedded inside the exhaust hood.

[0016] The beneficial effects of this utility model are as follows: multiple surfaces inside the exhaust hood are covered with noise-reducing cotton, and a noise-reducing cotton board is installed on the back, which can absorb the noise generated by the operation and exhaust of the energy storage converter in all directions, effectively reducing environmental noise pollution; moreover, the exhaust hood provides sufficient diffusion buffer space for airflow, avoiding direct airflow impact on the side surface, which can reduce exhaust resistance, improve area utilization and overall system efficiency, and reduce energy loss; in addition, the overall size of the exhaust hood can be accommodated in an outdoor cabinet, which can save the extra space occupied by the outdoor cabinet and eliminate the need for external waterproof strips, reducing maintenance costs; at the same time, it can effectively block wind sand and water vapor from directly entering the interior of the energy storage converter, reducing equipment failure and corrosion risks, extending equipment service life, and ensuring the stable and reliable operation of the energy storage system. Attached Figure Description

[0017] Figure 1 An exploded view of the structure of the energy storage converter of this utility model, with the exhaust hood installed in the outdoor cabinet of the energy storage system.

[0018] Figure 2 Comparison diagrams of the closed and open states of the rear door of the equipment compartment of the outdoor cabinet of this utility model;

[0019] Figure 3 This is a schematic diagram of the exhaust shroud of the energy storage converter of this utility model;

[0020] Figure 4 This is an exploded view of the structure of the louver assembly of this utility model.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0025] Furthermore, descriptions involving terms such as "first" and "second" in this utility model are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this utility model.

[0026] This utility model proposes an exhaust hood for an energy storage converter, referring to... Figure 1 and Figure 2 The exhaust hood is installed in the outdoor cabinet of the energy storage system, and the air inlet of the exhaust hood is adapted to and connected to the exhaust port of the energy storage converter installed in the outdoor cabinet. Taking the position of the air inlet of the exhaust hood as the front, the interior of the exhaust hood is provided with noise-reducing cotton covering the front, upper side, lower side, left side and right side. The back of the exhaust hood is provided with a noise-reducing cotton board. The exhaust hood is also provided with a louver assembly that passes through the noise-reducing cotton board and is embedded inside the exhaust hood as an air outlet. The horizontal and vertical dimensions of the front of the exhaust hood are both larger than the horizontal and vertical dimensions of the exhaust port of the energy storage converter. The installation height of the louver assembly is lower than the setting height of the air inlet of the exhaust hood.

[0027] In this embodiment, the exhaust hood is located inside the outdoor cabinet of the energy storage system, and its air inlet is precisely matched and connected to the exhaust port of the energy storage converter inside the outdoor cabinet. This design ensures that the hot air discharged from the energy storage converter can directly and smoothly enter the exhaust hood, laying the foundation for subsequent heat dissipation and processing.

[0028] The front is defined as the location of the air inlet of the exhaust hood. Noise-reducing cotton is used to cover the front, top, bottom, left, and right sides of the hood. This cotton can be made of a porous material, which effectively absorbs and dissipates sound wave energy through friction and reflection within the pores as airflow passes over these surfaces, thereby reducing noise.

[0029] In this way, filling the inside of the exhaust hood with noise-reducing cotton can effectively absorb the vibrational energy of sound waves, converting sound energy into heat energy to achieve noise reduction. This noise-reducing cotton can be made of high-density fiber materials or non-woven fabric materials. Its internal micropores can limit the propagation of sound waves, and at the same time, through friction and resistance, reduce the amplitude and energy of the sound.

[0030] The back of the exhaust hood is also equipped with a noise-reducing cotton board, which further enhances the noise reduction effect of the entire exhaust hood. The noise-reducing cotton board works together with the noise-reducing cotton on other surfaces inside the exhaust hood to reduce the noise generated by the energy storage converter during operation from spreading to the outside in all directions.

[0031] The exhaust hood is equipped with a louvered assembly as the air outlet, which is embedded inside the hood through the noise-reducing cotton panel. The louvered design has several advantages: it can guide the exhaust airflow to a certain extent, making the airflow more orderly; at the same time, the louvered blades can block some of the external wind, sand and moisture from entering the exhaust hood, providing a preliminary protective function.

[0032] The lateral and longitudinal dimensions of the exhaust hood are larger than those of the energy storage converter's exhaust port. This larger size design provides more space, allowing sufficient room for diffusion and buffering when the airflow from the energy storage converter enters the exhaust hood. This prevents the airflow from directly impacting the side surface of the exhaust hood, reduces airflow turbulence, lowers exhaust resistance, and improves the area utilization of the exhaust hood, thereby enhancing the overall system's heat dissipation efficiency.

[0033] Optionally, the exhaust hood is made of SGCC material, and the surface coating thickness can be flexibly configured according to the application site of the outdoor cabinet of the energy storage system. Taking into account the minimum installation distance between the energy storage converter and the wall, the exhaust hood adopts a wide and tall flat design, which can have a large horizontal and vertical dimension, but a small thickness, ensuring that its size does not affect the minimum installation distance between the energy storage converter and the wall, while meeting the heat dissipation and ventilation requirements.

[0034] The exhaust hood is designed with a large internal space. When airflow passes from the narrow exhaust port of the energy storage converter through the spacious hood, optimized fluid dynamics effectively reduce eddy currents and increase static pressure. This corrects the airflow direction of the transverse exhaust from the internal turbine fan of the energy storage converter, achieving efficient airflow guidance within a limited space. This significantly reduces airflow resistance, optimizes airflow distribution, reduces energy loss, and improves the exhaust heat dissipation efficiency of the energy storage converter. Simultaneously, when noise passes from the narrow exhaust port of the energy storage converter through the spacious hood, the increased number of sound wave propagation paths and obstacles effectively reduces noise propagation efficiency. Furthermore, the exhaust hood also has a mechanical isolation function, effectively reducing noise pollution caused by vibration transmission from internal components such as fans within the energy storage converter.

[0035] This design not only improves the overall acoustic performance, but also enhances the efficiency and reliability of the exhaust system through the optimization of multi-layer baffles, providing strong support for the efficient operation of the energy storage converter.

[0036] The louver assembly is installed at a height lower than the air inlet of the exhaust hood. This design is crucial for handling extreme environments. In sandstorms or high humidity conditions, even if sand and moisture enter the exhaust hood, the height difference prevents them from directly entering the energy storage converter, creating an effective physical barrier that protects the converter from damage and extends its lifespan.

[0037] Optionally, to ensure ventilation and heat dissipation inside the energy storage converter, the outdoor cabinet of the energy storage system is designed with a dedicated air outlet. The air outlet adopts a louvered structure and is lower than the exhaust vent of the energy storage converter. Even in extreme environments (such as sandstorms, high humidity, etc.) where sand and moisture enter the outdoor cabinet, due to the height difference between the air outlet and the exhaust vent of the energy storage converter, the sand and moisture will only accumulate at the bottom of the exhaust hood and will not enter the interior of the energy storage converter. Thus, only periodic cleaning of the sand and dust inside the exhaust hood is required, which greatly improves the IP protection level of the outdoor cabinet and the corrosion resistance level of the energy storage converter, extending the service life of the equipment. Furthermore, the louvered design is coordinated with the overall structure of the outdoor cabinet and matches the lines and proportions of the cabinet, making the appearance of the outdoor cabinet of the energy storage system cleaner and enhancing the overall visual effect, brand image, and market competitiveness of the outdoor cabinet of the energy storage system.

[0038] In summary, the optimized structure of the exhaust hood improves airflow distribution and increases noise propagation paths, thereby enhancing heat dissipation efficiency. Noise-absorbing cotton is used to absorb noise energy, achieving noise reduction and creating a soundproof enclosure between the energy storage converter and the outdoor cabinet of the energy storage system. The louvered air outlets ensure ventilation and heat dissipation while enhancing visual appeal. Of course, the minimum installation distance between the energy storage converter and the wall must be comprehensively considered, and the size of the exhaust hood must be rationally planned to ensure that its dimensions do not affect the minimum size of the outdoor cabinet of the energy storage system.

[0039] In one embodiment, the exhaust hood has multiple surfaces covered with noise-reducing cotton and a noise-reducing cotton board on the back, which can absorb noise generated by the operation and exhaust of the energy storage converter from all directions, effectively reducing environmental noise pollution. Moreover, the exhaust hood provides sufficient diffusion buffer space for airflow, preventing airflow from directly impacting the side surfaces, which can reduce exhaust resistance, improve area utilization and overall system efficiency, and reduce energy loss. Furthermore, the overall size of the exhaust hood can be accommodated in an outdoor cabinet, saving the extra space occupied by the outdoor cabinet and eliminating the need for external waterproof strips, thus reducing maintenance costs. At the same time, it can effectively prevent wind sand and moisture from directly entering the interior of the energy storage converter, reducing the risk of equipment failure and corrosion, extending the service life of the equipment, and ensuring the stable and reliable operation of the energy storage system.

[0040] In one embodiment, based on the above embodiments, referring to Figure 3 A buffer cotton frame is provided at the joint between the air inlet of the exhaust hood and the exhaust outlet of the energy storage converter.

[0041] In this embodiment, a buffer cotton frame is attached to the area where the air inlet of the exhaust hood meets the exhaust outlet of the energy storage converter; the compressibility of the buffer cotton can solve the problem of loose fit between the air inlet of the exhaust hood and the exhaust outlet of the energy storage converter caused by sheet metal processing errors.

[0042] Optionally, the thickness of the cushioning cotton frame can be selected according to the actual situation, such as setting it to 10mm thick cushioning cotton.

[0043] In one embodiment, based on the above embodiments, referring to Figure 3 The exhaust hood is divided into an upper structure and a lower structure, and the upper structure and the lower structure are detachably connected; the air inlet of the exhaust hood is located in the upper structure, and the louver assembly is installed in the lower structure.

[0044] In this embodiment, considering that the louver assembly requires regular maintenance and the large size of the exhaust hood makes overall disassembly and assembly inconvenient, the exhaust hood can adopt a modular design, which can be divided into an upper structure and a lower structure. In this way, when the louver assembly needs to be maintained, only the exhaust hood of the structural part needs to be removed to quickly maintain the louver, without having to perform complicated overall disassembly and assembly operations.

[0045] Optionally, the upper and lower structures are connected by threads to facilitate quick disassembly and installation.

[0046] In one embodiment, based on the above embodiments, referring to Figure 4 The louver assembly includes a louver body; the back of the louver body faces the inside of the exhaust hood and is provided with filter cotton; the filter cotton is attached to the frame on the back of the louver body by a pressure strip; the bottom of the louver body is also provided with one or more drainage holes.

[0047] In this embodiment, the louver design of the louver assembly meets the IP54 protection level requirements, and the filter cotton equipped can be 45PPI polyurethane filter cotton with excellent dustproof and waterproof performance. Drainage holes are designed at the bottom of the main body to ensure good dustproof and waterproof performance.

[0048] Meanwhile, the effective air intake area of ​​the exhaust louvers should be greater than or equal to the area of ​​the energy storage converter's exhaust vent to ensure sufficient airflow and meet heat dissipation requirements. In terms of size design, the width and height of the louvers should be strictly smaller than the corresponding dimensions of the exhaust hood to ensure that the louvers are completely embedded inside the exhaust hood, preventing any part from exceeding the hood's boundaries. This prevents windblown sand and moisture from entering the outdoor cabinet of the energy storage system in extreme environments (such as sandstorms, high humidity, etc.), except within the designated area inside the exhaust hood. Finally, the installation position of the louvers should maintain an appropriate height difference from the exhaust vent of the energy storage converter to optimize airflow, improve heat dissipation efficiency, and ensure stable operation of the equipment in outdoor environments.

[0049] In one embodiment, based on the above embodiments, both the noise-reducing cotton and the noise-reducing cotton board adopt a porous fiber structure.

[0050] In this embodiment, the noise-reducing cotton material can be PEF material. PEF cotton is short for polyester fiber cotton. Its fiber structure is porous. When sound waves enter the fiber, it can achieve a noise reduction effect, especially for high-frequency noise. PEF cotton also has heat preservation, heat insulation and moisture-proof functions. At the same time, its production cost is low, the market demand is large and the price is affordable.

[0051] If there are higher noise reduction requirements and sufficient budget, PEF cotton can be used in combination with other noise reduction cotton, such as open-pore foam, mineral wool, glass wool, etc., to further improve the noise reduction effect through composite structure.

[0052] In addition to meeting noise reduction requirements, the selected PEF cotton must also meet fire resistance and environmental protection requirements, and must comply with UL94 HF-1 level requirements and RoHS environmental certification.

[0053] This utility model further proposes an outdoor cabinet for an energy storage system, referring to... Figure 1 and Figure 2 The outdoor cabinet of the energy storage system includes the outdoor cabinet body and the exhaust hood of the energy storage converter. The specific structure of the exhaust hood of the energy storage converter is as described in the above embodiments. Since the outdoor cabinet of this energy storage system adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0054] Optionally, the outdoor cabinet may or may not have a rear door for the equipment compartment. Figure 1 and Figure 2The outdoor cabinet structure with a rear door for the equipment compartment shown is merely an example; this outdoor cabinet structure may not have a rear door for the equipment compartment.

[0055] Optionally, if the outdoor cabinet does not have a rear door for the equipment compartment, it can be installed close to the wall to seal the back of the exhaust hood (in this case, the wall can have corresponding ventilation openings to cooperate with the louver assembly for air outlet).

[0056] Optionally, when the outdoor cabinet has a rear door for the equipment compartment, the exhaust hood is installed on the inside of the rear door and adapted to the position of the energy storage converter's exhaust port. Appropriate screws can be selected based on the size and weight of the exhaust hood to lock it to the inside of the door. In this case, the noise-reducing cotton panel of the exhaust hood is fitted against the inside of the rear door of the equipment compartment, and the louver assembly of the exhaust hood passes through the rear door of the equipment compartment and the noise-reducing cotton panel in sequence, embedding itself inside the exhaust hood. When the rear door of the equipment compartment is closed, the air inlet of the exhaust hood is fitted against the exhaust port of the energy storage converter, with only the louver assembly protruding from the cabinet exterior; when the rear door of the equipment compartment is open, the air inlet of the exhaust hood is disengaged from the exhaust port of the energy storage converter.

[0057] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. An exhaust hood for an energy storage converter, characterized in that, The exhaust hood is installed in the outdoor cabinet of the energy storage system, and the air inlet of the exhaust hood is adapted to and connected to the exhaust port of the energy storage converter installed in the outdoor cabinet. Taking the position of the air inlet of the exhaust hood as the front, the interior of the exhaust hood is provided with noise-reducing cotton covering the front, upper side, lower side, left side and right side. The back of the exhaust hood is provided with a noise-reducing cotton board. The exhaust hood is also provided with a louver assembly that passes through the noise-reducing cotton board and is embedded inside the exhaust hood as an air outlet. The horizontal and vertical dimensions of the front of the exhaust hood are both larger than the horizontal and vertical dimensions of the exhaust port of the energy storage converter. The installation height of the louver assembly is lower than the setting height of the air inlet of the exhaust hood.

2. The exhaust hood of the energy storage converter as described in claim 1, characterized in that, The air inlet of the exhaust hood and the exhaust outlet of the energy storage converter are fitted with a buffer cotton frame.

3. The exhaust hood of the energy storage converter as described in claim 1 or 2, characterized in that, The exhaust hood is divided into an upper structure and a lower structure, and the upper and lower structures are detachably connected; the air inlet of the exhaust hood is located in the upper structure, and the louver assembly is installed in the lower structure.

4. The exhaust hood of the energy storage converter as described in claim 3, characterized in that, The upper and lower structures are connected by threads.

5. The exhaust hood of the energy storage converter as described in claim 1, characterized in that, The louver assembly includes a louver body; the back of the louver body faces the inside of the exhaust hood and is provided with filter cotton; the filter cotton is attached to the frame on the back of the louver body by a pressure strip; the bottom of the louver body is also provided with one or more drainage holes.

6. The exhaust hood of the energy storage converter as described in claim 1, characterized in that, Both the noise-reducing cotton and the noise-reducing cotton board adopt a porous fiber structure.

7. An outdoor cabinet for an energy storage system, characterized in that, The outdoor cabinet is equipped with an exhaust hood for the energy storage converter as described in any one of claims 1-6.

8. The outdoor cabinet of the energy storage system as described in claim 7, characterized in that, The outdoor cabinet is equipped with a rear door for the equipment compartment. The noise-reducing cotton panel of the exhaust hood is fitted to the inside of the rear door for the equipment compartment, and the louver assembly of the exhaust hood passes through the rear door for the equipment compartment and the noise-reducing cotton panel in sequence and is embedded inside the exhaust hood.

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