A high-power energy storage device suitable for a tunnel

Abstract

The utility model relates to power facility protection technical field, concretely is a kind of high-power energy storage device suitable for tunnel, including box and upper cover, super capacitor is equipped in box, the side of upper cover towards box interior is equipped with DCDC module, the side of upper cover towards box exterior is equipped with heat dissipation groove, and heat dissipation groove is fin-shaped array structure. The heat dissipation groove of fin-shaped array structure is opened in the top of energy storage device upper cover, the effective area of fin is increased by this structure, the efficiency of heat transfer to air is improved, the channel formed by heat dissipation groove structure promotes air to form natural convection, accelerates the export of hot air and the supplement of cold air, to realize faster heat transfer, and the heat dissipation demand of high-power energy storage equipment under tunnel environment can be satisfied without the participation of fan.

Description

Technical Field

[0001] This utility model relates to the field of power facility protection technology, specifically a high-power energy storage device suitable for tunnels. Background Technology

[0002] The statements in this section merely provide background information related to this utility model and do not necessarily constitute prior art.

[0003] Energy storage devices are typically deployed inside tunnels to cope with power outages and grid fluctuations. However, due to the high power requirements of the equipment, it is difficult to meet the simultaneous operation needs of numerous high-power devices within the tunnel. Therefore, current technologies are gradually increasing the power of energy storage devices. However, this increase in power brings about heat dissipation problems. The tunnel interior is isolated from the external environment, and conventional heat dissipation methods are insufficient to meet the operational requirements of energy storage devices. Furthermore, the humid environment and confined space within tunnels, along with the presence of large amounts of dust and impurities in some tunnels, further exacerbate the negative impacts of heat dissipation issues. Utility Model Content

[0004] To address the technical problems mentioned above, this utility model provides a high-power energy storage device suitable for tunnels. A fin-shaped array structure of heat dissipation slots is formed on the top of the energy storage device's cover. This structure increases the effective area of ​​the heat sinks, improving the efficiency of heat transfer to the air. The channels formed by the heat dissipation slots promote natural air convection, accelerating the removal of hot air and the replenishment of cold air, thereby achieving faster heat transfer. Furthermore, it meets the heat dissipation requirements of high-power energy storage devices in tunnel environments without the need for fans.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a high-power energy storage device suitable for tunnels, including a housing and a top cover. A supercapacitor is installed inside the housing. A DC-DC module is installed on the side of the top cover facing the inside of the housing, and a heat dissipation groove is installed on the side facing the outside of the housing. The heat dissipation groove includes multiple sets of heat dissipation fins arranged in parallel to form a fin-like array structure. The heat dissipation fins cover the top and bottom spaces of the DC-DC module. The heat dissipation fins located at the top of the DC-DC module pass through the top cover, and the heat dissipation fins located at the bottom of the DC-DC module extend a predetermined distance toward the inside of the housing.

[0006] Furthermore, the outer wall of the container is equipped with handles and lifting rings to form lifting points during the transportation of the energy storage device.

[0007] Furthermore, the enclosure is equipped with a capacitor positioning bracket for positioning the supercapacitor during installation.

[0008] Furthermore, the supercapacitor has an external capacitor mounting bracket and a top capacitor mounting bracket.

[0009] Furthermore, a supercapacitor comprises multiple supercapacitor cells, which are connected by a capacitor mounting bracket to form a "module".

[0010] Furthermore, a charging cable connector, a communication cable connector, a cable release connector, and a vent valve are provided on the outer wall of one side of the enclosure.

[0011] Furthermore, a sealing element is provided between the top cover and the housing. After the top cover is connected and fixed to the housing, the chamber where the supercapacitor is located is sealed.

[0012] Furthermore, there is a gap between the DC-DC module and the supercapacitor, which accommodates the charging cable connector, communication cable connector, discharge cable connector, and vent valve.

[0013] Furthermore, the bottom of the box is equipped with a floor-mounted fixed bracket, which includes a bracket body, and the bracket body is equipped with casters and support columns.

[0014] Furthermore, the enclosure is connected to a wall-mounted mounting bracket.

[0015] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. The top cover uses a high thermal conductivity material (such as aluminum alloy) and is combined with an integrated finned heat dissipation array, which greatly increases the effective heat dissipation area. By promoting natural or forced air convection, it achieves efficient heat dissipation. This design eliminates the need for additional fans or auxiliary heat dissipation components, enabling rapid dissipation of internal heat in the high-temperature, enclosed environment of a tunnel. This effectively prevents performance degradation or malfunctions caused by overheating and ensures stable operation during high-power charging and discharging processes.

[0016] 2. A high-level seal is achieved between the housing and the top cover through a sealing strip, and the overall structure can reach the IP68 protection level. It can effectively block harsh factors such as moisture, dust, and corrosive gases in the tunnel, prevent internal components from getting damp, dusty, or corroded, and significantly improve the long-term reliability and service life of the device in the special environment of the tunnel.

[0017] 3. By coordinating the capacitor positioning bracket, capacitor fixing bracket, and top fixing bracket, the supercapacitor module can be quickly positioned and installed, significantly improving assembly efficiency and accuracy. The overall structure is rationally laid out, making full use of internal space. Cable connectors, vent valves, and other accessories are centrally located for easy wiring and maintenance. It also supports both floor-mounted and wall-mounted installation methods to adapt to different tunnel space conditions.

[0018] 4. Using supercapacitors as energy storage units, combined with DC-DC modules and charge / discharge management technology, can provide high-power, stable power output to meet the needs of simultaneous operation of important equipment such as lighting, ventilation, and monitoring in the tunnel, and ensure normal operation of the tunnel in emergency situations such as mains power failure.

[0019] 5. The device has a robust overall structure, uses corrosion-resistant and high-strength materials, and features excellent heat dissipation and sealing design, which significantly reduces the failure rate caused by environmental factors such as temperature rise, humidity, and dust, thereby reducing subsequent maintenance needs and operating costs. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram showing how the lifting ring fixing bracket and the handles on both sides are fixed together by laser welding in the energy storage device provided by this utility model: Figure 2 This is a schematic diagram of the capacitor positioning bracket provided by this utility model being installed and fixed inside the box: Figure 3 This is a schematic diagram showing the supercapacitor provided by this utility model installed inside the capacitor mounting bracket, and then the top mounting bracket of the capacitor is fixed on top: Figure 4 This is a schematic diagram of the structure of the DC-DC converter and the top cover being installed and fixed together according to this utility model: Figure 5 This is a schematic diagram of the heat dissipation groove structure on the top of the cover when the DC-DC converter and the cover are installed and fixed together: Figure 6 This is a schematic diagram showing the supercapacitor portion of this utility model installed and fixed inside the housing: Figure 7 This is an isometric view of the supercapacitor portion of the present invention after it has been installed and fixed inside the housing: Figure 8 This is a cross-sectional view of the high-power energy storage device for tunnels provided by this utility model: Figure 9 This is an isometric view of the high-power energy storage device for tunnels provided by this utility model after it has been installed on a floor-mounted support: Figure 10 This is an isometric view of the tunnel-specific high-power energy storage device provided by this utility model after it has been installed on a wall-mounted bracket. Figure 11 This is a top view of the heat dissipation groove provided by this utility model. Figure 12 This is a side view of the heat dissipation groove provided by this utility model. Figure 13 This is a partial structural schematic diagram of the heat dissipation groove provided by this utility model.

[0022] In the diagram: 1. Housing, 2. Lifting ring bracket, 3. Handle, 4. Capacitor positioning bracket, 5. Supercapacitor, 6. Capacitor fixing bracket, 7. Capacitor top fixing bracket, 8. Capacitor height fixing bracket, 9. Sealing gasket, 10. Charging cable connector, 11. Communication cable connector, 12. Cable release connector, 13. Vent valve, 14. DC-DC module, 15. Top cover, 16. Floor-standing fixing bracket, 17. Wall-mounted fixing bracket. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] This solution addresses the problem that existing energy storage devices cannot meet the special needs of tunnels. The device can provide high-power and stable power output, has efficient charging and discharging performance, and is adaptable to the harsh environment of tunnels, ensuring the normal operation and safety of tunnels under various conditions.

[0026] The device consists of a cabinet, a top cover, a bottom bracket, and a wall-mounted bracket. The supercapacitor is fixed inside the cabinet, and the DC-DC converter is fixed to the top cover. A sealing strip is added between the cabinet and the top cover, and they are fixed together with screws. Finally, the overall installation and fixing of the equipment can be either floor-standing or wall-mounted.

[0027] The device boasts excellent heat dissipation and sealing, achieving an IP68 rating. To further enhance heat dissipation, the top cover, which generates significant heat, is made of aluminum alloy and features heat dissipation slots on its top. These slots utilize a finned array structure, significantly improving heat transfer efficiency by increasing the effective surface area of ​​the heat sinks. The channels created by the heat dissipation slots promote natural or forced air convection, accelerating the removal of hot air and the replenishment of cool air, thereby achieving faster heat transfer and allowing heat to be directly dissipated.

[0028] A finned array structure refers to a heatsink with regularly arranged thin, fin-like heat dissipation fins, often simply called fins. Because of its regularly arranged fins, the finned array structure increases the heat dissipation area by 3-5 times, resulting in highly efficient heat dissipation. The array distribution also ensures more even heat dissipation, preventing localized heat accumulation. Since the internal temperature of the device is generally not very high, the heatsink's own thermal conductivity is sufficient, eliminating the need for an additional fan. The top cover and heat dissipation vents are integrated into one unit, resulting in a larger heat conduction area and more effective heat dissipation. When the internal temperature of the equipment is too high, the heat is directly transferred to the top cover, which then dissipates the heat through the heat dissipation vents. Even under heavy-duty operation, the internal temperature will dissipate, thereby reducing malfunctions caused by overheating.

[0029] The heat dissipation slots do not need to be used with other accessories such as fans; the heat dissipation slot structure on the top of the cover is sufficient to transfer the heat inside the casing.

[0030] like Figures 1-10 As shown, a high-power energy storage device suitable for tunnels includes a housing 1 and a top cover 15. A supercapacitor 5 is installed inside the housing 1. A DC-DC module 14 is installed on the side of the top cover 15 facing the inside of the housing 1, and a heat dissipation groove is installed on the side facing the outside of the housing 1. The heat dissipation groove is a fin array structure.

[0031] like Figure 1 As shown, the outer wall of the housing 1 is provided with a handle 3 and a lifting ring fixing bracket 2, which are used to form a lifting point when transporting the energy storage device.

[0032] like Figure 2 As shown, the box 1 is equipped with a capacitor positioning bracket 4, which is used for positioning when installing the supercapacitor 5.

[0033] like Figure 3 As shown, the supercapacitor 5 has a capacitor fixing bracket 6 on the outside and a capacitor top fixing bracket 7 on the top, which is used to combine several supercapacitor units into a "module".

[0034] like Figure 4 and Figure 5 As shown, the top cover 15 has a DC-DC module 14 on the side facing the inside of the housing 1, and a heat dissipation slot on the side facing the outside of the housing 1. The heat dissipation slot has a fin array structure.

[0035] like Figure 6 and Figure 7As shown, a charging cable connector 10, a communication cable connector 11, a discharge cable connector 12, and a vent valve 13 are provided on the outer wall of one side of the housing 1. The energy storage device is connected to the external load equipment through each connector. After the top cover 15 is connected and fixed to the housing 1, the chamber where the supercapacitor 5 is located is sealed. The air pressure is balanced by communicating with the external environment through the vent valve 13, ensuring that the air inside the housing 1 can be discharged to the outside of the housing 1 after being heated and expanded.

[0036] like Figure 8 As shown, after the supercapacitor 5 is installed in the housing 1, there is a gap between the DC-DC module 14 and the supercapacitor 5. This gap is used to accommodate the charging cable connector 10, the communication cable connector 11, the discharge cable connector 12, and the vent valve 13.

[0037] like Figure 9 and Figure 10 As shown, the device can be installed either floor-standing or wall-mounted. When floor-standing, the device is placed at a designated location using a floor-standing mounting bracket 16, which elevates the device to a certain height, preventing it from directly contacting the ground. When wall-mounted, the device is connected to the wall at a designated location using a wall-mounting bracket 17.

[0038] The structure of the heat sink is as follows Figures 11-13 As shown, the heat dissipation slot of this solution is a fin-shaped array structure. Specifically, the heat dissipation slot includes multiple sets of heat dissipation fins, which are arranged in parallel. A heat dissipation slot is formed between two adjacent sets of heat dissipation fins, and the heat dissipation fins as a whole form a fin-shaped array structure.

[0039] The heat dissipation fins are divided into two parts. One part of the heat dissipation fins is connected to the bottom of the DC-DC module 14 and passes through the top cover 15. The other part of the heat dissipation fins is arranged at the bottom of the housing of the DC-DC module 14 and extends a set length toward the space below the DC-DC module 14. The housing of the DC-DC module 14 and the heat dissipation fins are made of a material with a thermal conductivity exceeding a certain value, such as aluminum.

[0040] Due to its long-term operation, the DC-DC module 14 generates more heat than the supercapacitor 5, therefore it is positioned in the upper half of the housing 1, closer to the top. The finned array heat sink extends a predetermined length towards the space below the DC-DC module 14. Because this extension is close to the supercapacitor 5, it effectively absorbs heat from the surrounding air, conducting it along the casing of the DC-DC module 14 to the top of the cover 15, releasing it along with the heat generated by the DC-DC module 14 into the space above the cover 15. Regarding heat flow, the supercapacitor 5 occupies space near the lower half of the housing 1, causing its heat to accumulate above it, where the DC-DC module 14 is located. The heat generated by the supercapacitor 5, along with that generated by the DC-DC module 14, is transferred along the heat sink to the space above the cover 15 under thermodynamic effects, achieving heat dissipation. Since the heat source is concentrated in the upper half of the housing, the temperature difference with the surrounding environment is greater, facilitating natural convection cooling and eliminating the need for forced convection fans. This indirectly improves the overall sealing and protection level of the energy storage device.

[0041] Working principle: First, the handle and lifting ring fixing bracket are fixed to the cabinet using laser welding. Next, the capacitor positioning bracket is installed and fixed inside the cabinet. Then, the supercapacitor and capacitor fixing bracket are installed and fixed together. Next, the capacitor top fixing bracket is installed. The supercapacitor assembly is then installed entirely into the cabinet. Because the capacitor positioning bracket is already installed inside the cabinet, the supercapacitor assembly is easily installed in one step. This method is convenient and accurate. Next, a capacitor height positioning bracket is installed inside the cabinet to prevent the supercapacitor from tipping over during transportation. Next, the DC-DC converter and top cover are installed and fixed together. Because the DC-DC converter generates high temperatures, the top cover is made of aluminum alloy and has a heat dissipation vent structure on the top to easily solve the equipment's heat dissipation problem. Next, the entire top cover is installed onto the cabinet, with an internal sealing gasket. This sealing structure achieves an IP68 rating. Next, the cabinet exterior is equipped with charging, communication, and discharging cable connectors of three specifications, making installation convenient and operation simple. Finally, the equipment is available in two different fixing methods: floor-standing and wall-mounted.

[0042] Install the lifting ring and the handle together on the outside of the enclosure, and then install the capacitor positioning bracket inside the enclosure.

[0043] The supercapacitor is installed inside the capacitor mounting bracket, and finally the top mounting bracket of the capacitor is installed and fixed.

[0044] Install the supercapacitor mounting bracket and the capacitor top mounting bracket together into the enclosure, then install the capacitor height mounting bracket to achieve quick positioning and installation. Finally, install the sealing gasket.

[0045] The charging cable connector, communication cable connector, discharge cable connector, and vent valve are sequentially fixed to the box.

[0046] Install and secure the DC-DC converter and the top cover together, and then fix the whole assembly to the cabinet.

[0047] The energy storage device is installed and fixed onto a floor-mounted support.

[0048] The energy storage device is installed and fixed onto a wall-mounted bracket.

[0049] The lifting ring fixing bracket and handle are fixed to the box body by laser welding.

[0050] The supercapacitor, capacitor mounting bracket, and capacitor top mounting bracket are components that are assembled and fixed together. The DC-DC converter and the top cover are assembled and fixed together.

[0051] Because the top cover is made of a single piece of aluminum alloy and has a heat dissipation groove structure processed on the top, it has good heat dissipation. Even when the temperature of the tunnel-specific high-power energy storage device is high during operation, it will quickly dissipate the heat, so there is no need to worry about the equipment malfunctioning due to high temperature.

[0052] This solution offers advantages such as convenient and accurate installation, simple internal structure, and easy processing when installing supercapacitors inside the enclosure, enabling efficient and rapid assembly. The structure boasts high-efficiency heat dissipation performance; the aluminum alloy top cover with its heat dissipation grooves effectively dissipates internal heat. It also provides excellent protection through the high-strength, corrosion-resistant alloy material and special sealing design of the protective shell, along with moisture-proof and high-temperature-resistant components in the heat dissipation unit. This allows the energy storage device to adapt to harsh environments such as humid, dusty, and corrosive gases in tunnels, ensuring stability and reliability, reducing failure rates, and lowering maintenance costs. Furthermore, this invention provides stable power supply, delivering high-power, stable output to meet the simultaneous operation needs of high-power equipment such as lighting, ventilation, and monitoring within the tunnel. It ensures normal operation even in the event of mains power failures. The charging and discharging management unit employs intelligent charging algorithms and dynamic power adjustment technology to achieve rapid and efficient charging and stable discharging based on load demand, improving the charging and discharging efficiency and power utilization efficiency of the energy storage device, shortening charging time, and extending discharging duration.

[0053] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-power energy storage device suitable for tunnels, characterized in that, The device includes a housing and a top cover. A supercapacitor is installed inside the housing. A DC-DC module is located on the side of the top cover facing the inside of the housing, and a heat dissipation slot is located on the side facing the outside of the housing. The heat dissipation slot includes multiple sets of heat dissipation fins arranged in parallel to form a fin-like array structure. The heat dissipation fins cover the top and bottom spaces of the DC-DC module. The heat dissipation fins located at the top of the DC-DC module pass through the top cover, and the heat dissipation fins located at the bottom of the DC-DC module extend a predetermined distance toward the inside of the housing.

2. The high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, The outer wall of the container is equipped with handles and lifting rings to form lifting points during the transportation of the energy storage device.

3. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, The enclosure is equipped with a capacitor positioning bracket for positioning the supercapacitor during installation.

4. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, The supercapacitor is provided with an external capacitor fixing bracket and a top capacitor fixing bracket.

5. A high-power energy storage device suitable for tunnels as described in claim 4, characterized in that, The supercapacitor comprises multiple supercapacitor cells, which are connected by a capacitor mounting bracket to form a "module".

6. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, The outer wall of one side of the enclosure is provided with a charging cable connector, a communication cable connector, a discharge cable connector, and a vent valve.

7. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, A sealing element is provided between the top cover and the housing. After the top cover is connected and fixed to the housing, the chamber where the supercapacitor is located is sealed.

8. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, There is a gap between the DC-DC module and the supercapacitor, which accommodates the charging cable connector, communication cable connector, discharge cable connector and vent valve.

9. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, The bottom of the box is equipped with a floor-mounted fixed bracket, which includes a bracket body, and the bracket body is equipped with casters and support columns.

10. A high-power energy storage device suitable for tunnels as described in claim 1, characterized in that, The enclosure is connected to a wall-mounted fixed bracket.

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