A scalable modular electronic cabinet

Abstract

This invention discloses an expandable modular electronic cabinet, assembled from expandable equipment racks, with energy storage modules inserted inside. The expandable equipment rack includes a frame and a rear plate fixed to the rear of the frame. The rear plate integrates a cooling medium manifold, an electrical floating connector, a blind-mating fluid connector, and a positioning guide assembly. The positioning guide assembly guides the energy storage module to blind-mating with the electrical floating connector and the blind-mating fluid connector, which is connected to the cooling medium manifold. The expandable equipment racks can be stacked vertically and / or assembled horizontally, with the cooling medium manifolds of adjacent vertically adjacent expandable equipment racks sealed and connected. The bottom end of the cooling medium manifold of the bottom expandable equipment rack is connected to an external fluid connector, and its bottom is equipped with a shock absorber I. This invention enables flexible expansion of the electronic cabinet, simplifies the assembly process, ensures reliable docking and cooling, improves vibration adaptability, and is suitable for shipborne energy storage scenarios.

Description

Technical Field

[0001] This invention relates to the field of shipborne high-power electrical equipment technology, and particularly to a scalable modular electronic cabinet. Background Technology

[0002] An energy storage unit is a device that supplies power to high-power, short-duration equipment. It can simultaneously meet the needs of long-term standby / endurance and short-term high-power output. It consists of several energy storage modules. Currently, energy storage units are housed in energy storage cabinets (1320mm x 1400mm x 2389mm). The width and depth of the cabinets exceed the 600mm width of the ship's hatch, making it impossible to enter the compartment through the hatch or access door. Therefore, unconventional methods must be used to transport the equipment to the compartment.

[0003] Meanwhile, the integrated cabinet cannot be flexibly expanded according to the space and power requirements of the shipboard compartment. The internal electrical and cooling pipelines are laid out in a fixed manner. The energy storage module has poor docking accuracy, the cooling channel sealing reliability is insufficient, and there is a lack of earthquake-resistant structure adapted to the shipboard environment. It is difficult to meet the requirements of high reliability, easy maintenance and scalability of shipboard equipment.

[0004] Chinese patent document CN115939637B, published on December 20, 2022, discloses a shipborne energy storage unit, a shipborne energy storage device, and a power supply equipment. The shipborne energy storage unit includes an energy storage cabinet, multiple battery modules, electrical connection devices, and a heat exchange system. The electrical connection devices and the heat exchange system are located on opposite sides of the cabinet to improve insulation safety. This equipment adopts a fixed integral frame structure, cannot be disassembled for transportation, exceeds size limits and cannot pass through ship hatches, and lacks the ability to be vertically stacked or horizontally arranged for expansion.

[0005] Chinese patent document CN218940749U, published on November 23, 2022, discloses a battery device for an energy storage system. This device includes a battery body, a socket assembly, and connecting components. The connecting components enable the stacking and series-parallel connection of multiple battery bodies. However, this technology only achieves simple stacking and electrical connection, lacking integrated designs such as fluid cooling channels, and cannot meet the requirements of complex shipboard spaces and application environments.

[0006] Chinese patent document CN218300129U, published on August 31, 2022, discloses an electro-hydraulic quick-connect connector and battery box. The electro-hydraulic quick-connect connector includes a mounting plate, an electrical connector, a hydraulic connector, and elastic components, enabling rapid electro-hydraulic docking between battery boxes. However, this technology only represents a partial electro-hydraulic docking structure and does not form a complete, scalable, modular rack architecture capable of long-term reliable operation in the confined space of ships and with dense deployment of multiple devices. Furthermore, it does not integrate overall functions such as equipment deployment, expansion, safety monitoring, and fault isolation. It can only achieve partial rapid electro-hydraulic docking and cannot meet the overall technical requirements of integrated deployment, large-scale expansion, and centralized safety management of shipboard energy storage systems.

[0007] Shipborne energy storage equipment needs to meet stringent usage requirements such as limited compartment transfer, flexible power expansion, blind plug-in rapid docking, reliable liquid cooling, and shock absorption. Existing integrated shipborne energy storage cabinets have technical defects such as exceeding size limits and being unable to be transferred, poor expansion adaptability, and low blind plug-in docking accuracy, and cannot adapt to the installation and use needs of narrow shipborne compartments. Summary of the Invention

[0008] To address the shortcomings of the existing technology, the present invention provides an expandable modular electronic cabinet.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an expandable assembled electronic cabinet, wherein the electronic cabinet is assembled from at least one expandable device rack, and an energy storage module is inserted into the expandable device rack; the expandable device rack includes a base plate, side plate I, side plate II, and a rear plate, side plate I and side plate II are detachably installed on both sides of the base plate, and the rear plate is detachably installed on the base plate, and both sides of the rear plate are detachably connected to side plate I and side plate II; an L-shaped wear-resistant guide rail is provided on the base plate, and the energy storage module is inserted into the expandable device rack along the guide rail; the rear plate integrates a cooling medium manifold, an electrical floating connector, a blind-fit fluid connector, and a positioning component; the cooling medium manifold includes two independently arranged inlet pipes and outlet pipes, both of which are integrally formed on the base plate. The rear panel is vertically integrated, with the inlet and outlet pipes connected to corresponding blind-mating fluid connectors. This allows the medium in the cooling medium manifold to connect with the fluid interface on the energy storage module via the blind-mating fluid connector, forming a cooling medium circulation channel. The positioning component guides the energy storage module to blind-mating with the electrical floating connector and the blind-mating fluid connector. Multiple expandable equipment racks can be stacked vertically and / or assembled horizontally, with the cooling medium manifolds of adjacent expandable equipment racks vertically sealed and connected. The bottom of the cooling medium manifold of the bottom expandable equipment rack is connected to an external fluid connector. The bottom of the bottom expandable equipment rack is equipped with a shock absorber I, and the top expandable equipment rack is fitted with a cover plate, which seals the cooling medium manifold of the top expandable equipment rack.

[0010] Furthermore, the vertically adjacent expandable device racks are locked together by connectors.

[0011] Furthermore, the connector includes a connecting block mounted on side plate I and side plate II and a corner support mounted on the rear plate.

[0012] Furthermore, the positioning component is a positioning pin seat, which is used to form a plug-in guiding engagement with the guide pin on the back of the energy storage module.

[0013] Furthermore, both the upper and lower ends of the inlet and outlet pipes are provided with sealing grooves and fitted with pipe sealing rings to achieve sealed connection when stacked vertically; the inlet and outlet pipes are respectively connected to corresponding blind-plug fluid connectors.

[0014] Furthermore, the back of the expandable device rack is equipped with a cabling rack for bundling and securing cables.

[0015] Furthermore, a junction box is installed at the rear of the topmost expandable equipment rack.

[0016] Furthermore, a shock absorber II is installed on the back of the junction box.

[0017] Furthermore, a leakage detection device is installed within the expandable device rack, and the leakage detection device is located directly below the blind-mating fluid connector.

[0018] In summary, the present invention has the following beneficial effects: (1) The cabinet is disassembled into a standard expandable equipment rack. The modular design enables convenient disassembly and transportation, and free combination of space. It can be stacked vertically and side by side according to power and cabin space, and the cabinet size can be flexibly adjusted. After disassembly, the size is smaller than the door limit, so it can be transported to the site normally and quickly assembled on site, solving the problem of shipboard entry and adapting to use in complex environments.

[0019] (2) The cooling channel, electrical connection, fluid connection and positioning guide are integrated into a single back plate, eliminating the need for distributed pipelines and joints, thus eliminating assembly errors of multiple components from a structural perspective; among them, the positioning guide component realizes the pre-positioning and guidance of the energy storage module, and with the floating compensation characteristics of the electrical floating connector, it realizes stress-free blind mating of the electrical and liquid interfaces; when stacked vertically, the cooling medium confluence pipes of adjacent equipment racks are automatically aligned and sealed, without the need for external hose transfer, forming a closed integrated cooling circuit.

[0020] (3) The docking seal is reliable, the positioning pin seat guides the blind insertion docking, and the accuracy is high; the manifold pipe is sealed at two levels, the leakage monitoring is real-time and the cooling system has no seepage; the bottom shock absorption component and the back shock absorber work together to meet the requirements of the shipborne vibration environment and the equipment operates stably; maintenance and upgrade are convenient, modular splicing and quick insertion and removal of energy storage modules, and no need to disassemble the whole cabinet for later maintenance and power upgrade. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a scalable modular energy storage unit.

[0022] Figure 2 Schematic diagram of assembled electronic cabinet structure Figure 1 .

[0023] Figure 3 Schematic diagram of assembled electronic cabinet structure Figure 2 .

[0024] Figure 4 Scalable device rack illustration Figure 1 .

[0025] Figure 5 Scalable device rack illustration Figure 2 .

[0026] Figure 6 This is a schematic diagram of the scalable equipment rack and energy storage module assembly.

[0027] Figure 7 This is a schematic diagram of two rows of electronic cabinets installed side by side.

[0028] The reference numerals in the attached drawings are explained as follows: 1. Cooling medium manifold; 2. Corner bracket support; 3. Rear plate; 4. Electrical floating connector; 5. Positioning pin seat; 6. Blind-fit fluid connector; 7. Side plate I; 8. L-shaped wear-resistant guide rail; 9. Base plate; 10. Side plate II; 11. Leakage monitoring device; 12. M5 screw; 13. Pipe sealing ring; 14. M5 bolt; 15. M5 nut and spring washer; 16. Cover plate; 17. Expandable equipment rack; 18. Connecting block; 19. Shock absorber I; 20. Shock absorber II; 21. Junction box; 23. Wiring rack; 24. Adapter block; 25. External fluid connector; 26. Electronic cabinet; 27. Energy storage module. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments.

[0030] Example 1 In practical implementation: such as Figures 4 to 6 As shown, an expandable modular electronic cabinet 26 is assembled from at least one expandable device rack 17, within which an energy storage module 27 is inserted. The expandable device rack 17 includes a base plate 9, side plates I7, side plates II10, and a rear plate 3. Side plates I7 and II10 are detachably mounted on both sides of the base plate 9, and the rear plate 3 is detachably mounted on the base plate 9, with both sides of the rear plate 3 detachably connected to side plates I7 and II10. An L-shaped wear-resistant guide rail 8 is provided on the base plate 9, and the energy storage module 27 is inserted into the expandable device rack 17 along the guide rail 8. The rear plate 3 integrates a cooling medium manifold 1, an electrical floating connector 4, and a blind-plug fluid... Connector 6 and positioning component; The cooling medium manifold 1 includes two independently configured inlet and outlet pipes, both integrally formed inside the rear plate 3 and extending vertically. The inlet and outlet pipes are respectively connected to the corresponding blind-mating fluid connectors 6, so that the medium in the cooling medium manifold 1 can be connected to the fluid interface on the energy storage module 27 through the blind-mating fluid connectors 6 to form a cooling medium circulation channel; The positioning component is used to guide the energy storage module 27 to achieve blind-mating docking with the electrical floating connector 4 and the blind-mating fluid connector 6; The rear plate 3 integrates these functions, reducing external pipes and joints, improving the overall integrity and stability of the equipment, and reducing failure points.

[0031] Multiple expandable equipment racks 17 can be stacked vertically and / or assembled horizontally, wherein the cooling medium manifolds 1 of adjacent expandable equipment racks 17 are sealed and connected. This vertical stacking and horizontal assembly allows for flexible adaptation to any spatial layout of the ship's compartments. The bottom end of the cooling medium manifold 1 of the bottom expandable equipment rack 17 is connected to an external fluid connector 25 for quick connection to an external cooling system. The bottom of the bottom expandable equipment rack 17 is equipped with a shock absorber 119 to effectively block vibration transmission and protect the internal energy storage module 27 and the connection interface. The top expandable equipment rack 17 is equipped with a cover plate 16, through which the cooling medium manifold 1 of the top expandable equipment rack 17 is sealed.

[0032] In this embodiment, the frame is made of lightweight, high-strength alloy material. Under the premise of effectively controlling the overall weight, the overall structure is guaranteed to have sufficient structural strength and can stably meet the usage requirements of vibration, impact and other conditions in the harsh shipboard environment.

[0033] Example 2 like Figures 1 to 3 As shown, this embodiment is based on an expandable modular electronic cabinet in embodiment 1. The expandable electronic cabinet 26 can be constructed by stacking expandable equipment racks 17 in sequence. Each expandable equipment rack 17 is equipped with an energy storage module 27. The energy storage modules 27 are arranged in a regular manner inside the cabinet to achieve energy storage and stable output.

[0034] The expandable equipment rack 17 specifically includes a frame and a rear plate 3 fixedly mounted on the rear side of the frame. The frame includes a base plate 9 and side plates I7 and II10 disposed opposite to each other on the base plate 9; a cover plate 16 is installed on the top of the top expandable equipment rack 17, and vertically adjacent expandable equipment racks 17 are locked and fixed together by connectors.

[0035] The electronic cabinet 26 can be formed by horizontally assembling expandable equipment racks 17. Each expandable equipment rack 17 can be independently configured as a single unit or a vertically stacked structure.

[0036] The bottom expandable equipment rack 17 has shock absorbers I19 at its four corners to adapt to ship vibration conditions. The top expandable equipment rack 17 has a junction box 21 installed at its rear, and a shock absorber II20 is installed on the back of the junction box 21, forming a double shock absorption structure to ensure the stability of electrical connections.

[0037] Example 3 like Figures 1 to 6As shown, this embodiment is based on an expandable modular electronic cabinet from Embodiment 1 or Embodiment 2. The expandable equipment rack 17 specifically includes a frame and a rear plate 3 fixedly mounted at the rear of the frame. A cooling medium manifold 1 is formed inside the rear plate 3. The cooling medium manifold 1 includes two independently configured inlet and outlet pipes. Both the inlet and outlet pipes are integrally formed inside the rear plate 3 and extend vertically. Sealing grooves are provided at both ends of the inlet and outlet pipes, and pipe sealing rings 13 are embedded therein to achieve sealed connection during vertical stacking. The inlet and outlet pipes are respectively connected to corresponding blind-plug fluid connectors 6 for docking with the fluid interface on the energy storage module 27 to form a cooling medium circulation channel. The cooling medium manifold 1 extends vertically through the entire structure of the rear plate 3. Sealing grooves are provided at both the upper and lower through-ports of the pipeline, and matching sealing elements are embedded inside the sealing grooves to ensure that the cooling medium manifold 1 can achieve stable sealed connection after the adjacent expandable equipment racks 17 are stacked and assembled, thus avoiding the problem of cooling medium leakage.

[0038] The rear plate 3 also has an electrical floating connector 4, a blind-mating fluid connector 6, and a positioning guide assembly fixedly installed on it. Both the electrical floating connector 4 and the blind-mating fluid connector 6 form a mating connection structure with the corresponding energy storage module 27. The positioning guide assembly guides the energy storage module 27 to smoothly and accurately complete the blind-mating assembly operation. The rear plate 3 structure integrates the cooling medium manifold 1, the electrical floating connector 4, and the blind-mating fluid connector 6 into a single unit, achieving a high degree of integration. This effectively reduces the need for external piping and wiring, allowing the device to be better applied in shipboard environments, reducing equipment complexity and the probability of equipment failure. The energy storage module 27 smoothly completes the blind-mating connection through the positioning guide assembly, ensuring a smooth and stable connection process without the need for repeated manual calibration, significantly improving the overall assembly efficiency in shipboard environments.

[0039] In implementation, the expandable equipment rack 17 can be stacked and assembled vertically and horizontally. During vertical stacking, adjacent expandable equipment racks 17 are precisely aligned via matching positioning pins and holes, and the cooling medium manifold 1 is stably sealed and connected via corresponding seals. During horizontal assembly, adjacent expandable equipment racks 17 are stably and securely connected via corresponding side connectors, ensuring sufficient rigidity and stability of the overall assembly structure. The expandable equipment rack 17 can be used independently or stacked vertically. After stacking, the corresponding cooling medium manifold 1 is stably and securely connected, resulting in a stable and reliable overall assembly structure with high precision. It eliminates the need for repeated manual calibration and is suitable for complex and demanding environments such as shipboard and vehicle-mounted applications.

[0040] Example 4 like Figures 1 to 7 As shown, this embodiment is based on an expandable modular electronic cabinet from Embodiments 1, 2 and 3. The expandable equipment rack 17 includes a frame and a rear plate 3 fixed to the rear of the frame. The frame includes a base plate 9 and side plates I7 and II10 disposed opposite to each other on the base plate 9. The two side plates are detachably fastened to the base plate 9 with M5 screws 12. The frame is made of 7-series aluminum alloy. The overall frame is lightweight and has high structural strength, meeting the dual requirements of lightweight and vibration and impact resistance for shipborne equipment.

[0041] Vertically adjacent expandable equipment racks 17 are locked together by rigid connectors. These rigid connectors include connecting blocks 18 fixed to the outer side of the side plates and corner supports 2 fixed to the upper and lower sides of the rear plate 3. Before stacking the expandable equipment racks 17, it is first determined whether the two pipe sealing rings 13 on the equipment rack are in the sealing grooves. Then, the two equipment racks are aligned front to back and left to right, and secured with eight connecting blocks 18 using M6 screws to ensure overall coaxiality and structural stability. The connecting blocks 18 are fastened with screws. At the rear plate 3 of the equipment rack, there are six corner supports 2, which are connected to the corner supports 2 on the upper and lower equipment racks using M5 bolts, and then connected with nuts and bolts. The side connecting blocks 18, together with the rear corner supports 2, form a double-sided locking structure. After vertical stacking, the overall rigidity is increased, resisting ship vibration and impact. In this way, the side connecting blocks 18 and the rear corner supports 2 form a spatial rigid locking system, resisting ship tilting, swaying, and impact loads, ensuring the overall structural stability.

[0042] The horizontally adjacent expandable equipment racks 17 are secured by disassembling the connecting blocks 18 and M6 screws on opposite sides of the side plates, then inserting M5 bolts 14 and using spring-loaded washers for locking, ensuring overall coaxiality and structural stability after rack assembly. The number of rows and individual racks can be flexibly set according to the ship's cabin space. In the initial design phase, the vibration damper parameters are matched according to the ship's vibration characteristics to ensure that the peak response frequency of the electronic racks 26 containing energy storage modules 27 in each row is consistent. The bottom equipment rack height is ensured to be consistent by adjusting shims to avoid stress concentration caused by assembly deviations.

[0043] An electrical floating connector 4, a blind-mating fluid connector 6, and a positioning pin seat 5 are fixedly installed on the rear plate 3. The electrical floating connector 4 serves as a blind-mating electrical connector, and the blind-mating fluid connector 6 is directly connected to the cooling medium manifold 1. The positioning pin seat 5 engages with the guide pin on the back of the energy storage module 27 to guide the blind-mating electrical socket of the energy storage module 27 to the electrical floating connector 4 and the fluid plug of the energy storage module 27 to the blind-mating fluid connector 6 to achieve precise blind-mating docking.

[0044] The top expandable equipment rack 17 is equipped with a cover plate 16, which is detachably bolted to the rack body to achieve top sealing and protection. Due to the influence of cabin space factors, the number of rows and the number of electronic cabinets 26 in each row are selectively set. In the early stage of design, appropriate shock absorbers are selected to ensure that the system peak response frequency of electronic cabinets 26 containing energy storage modules 27 in each row is as consistent as possible. Then, shims are adjusted to ensure that the height of the bottom equipment rack is consistent. The bottom expandable equipment rack 17 is equipped with shock absorbers I19 at the four corners of the bottom to adapt to the vibration conditions of the ship. A cabling rack 23 is installed on the back of the expandable equipment rack 17 to achieve neat and layered cable laying. A junction box 21 is installed at the rear of the top expandable equipment rack 17. A shock absorber II20 is installed on the back of the junction box 21 to protect the junction box 21, forming a dual shock absorption structure of the whole machine and local areas to eliminate the impact of vibration-induced wire derailment and ensure the stability of electrical connections.

[0045] A leakage monitoring device 11 is installed on the base plate 9 of the expandable device rack 17. The leakage monitoring device 11 is located directly below the blind-fit fluid connector 6 and is used to monitor the cooling medium leakage in real time, provide immediate warning, and prevent the coolant from contacting the electrical parts and causing short circuits and corrosion. Two cooling medium manifolds 1 are arranged in parallel and run vertically along the rear plate 3. Both ends are provided with sealing grooves, and pipe sealing rings 13 are embedded in the sealing grooves. One manifold is an inlet pipe for connecting external cooling medium. Its bottom end is connected to the external fluid interface, and its top end is connected to the blind-fit fluid connector 6. The other manifold is an outlet pipe for discharging the cooled medium after heat exchange, forming a complete cooling circulation channel. Both manifolds are adapted to the fluid interface of the energy storage module 27. The energy storage module 27 has a fixing device on its back. The fluid connector of the energy storage module 27, once inserted, precisely aligns with the blind-fit fluid connector 6 on the rear panel 3, enabling bidirectional flow of the cooling medium. The bottom end of the cooling medium manifold 1 of the bottom expandable device rack 17 connects to the adapter block 24 and the external fluid connector 25, facilitating rapid connection with the external cooling system. The bottom of the cooling medium manifold 1 of the bottom expandable device rack 17 has a main inlet and a main outlet. The cooling medium flows through the inlet, the stacked expandable device rack 17, and the energy storage module 27, and then exits through the outlet. These two manifolds correspond to the liquid inlet and outlet, respectively, and synchronously align with the fluid connector of the energy storage module 27, forming a closed-loop flow channel connecting the external cooling system, the liquid inlet pipe, the energy storage module 27, the liquid outlet pipe, and the external cooling system, ensuring smooth circulation of the cooling medium and eliminating the risk of leakage.

[0046] The cooling medium manifold 1 of each expandable equipment rack 17 can be arranged independently or connected in parallel according to the system cooling requirements. The energy storage modules 27 are independently inserted and blindly connected without interference. This embodiment is suitable for scenarios where the width of the ship's cabin is limited and lateral expansion is required.

[0047] After assembly or cabinet consolidation is completed, energy storage modules 27 can be inserted into each equipment rack. When energy storage modules 27 are inserted along L-shaped wear-resistant guide rails 8, the guide pins on the back of the module smoothly engage with the pin holes of the positioning pin seats 5 on the equipment rack. After being guided and positioned, the electrical connector sockets and fluid connector sockets of energy storage modules 27 are connected to the plugs of the equipment rack under the guidance of the guide pins. After the energy storage modules 27 are installed in place, six screws are used on the panel to connect and fix the energy storage modules 27 to the equipment rack. After the installation of each energy storage module 27 is completed, electrical cables are finally used to interconnect each module with the junction box 21.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A scalable modular electronic cabinet, characterized in that, The electronic cabinet is assembled from at least one expandable device rack (17), and an energy storage module (27) is inserted into the expandable device rack (17). The expandable device rack (17) includes a base plate (9), side plate I (7), side plate II (10), and a rear plate (3). The side plates I (7) and II (10) are detachably mounted on both sides of the base plate (9), and the rear plate (3) is detachably mounted on the base plate (9). The two sides of the rear plate (3) are detachably mounted on the side plates I (7) and II (10). Disassembly and connection; an L-shaped wear-resistant guide rail (8) is provided on the base plate (9), and the energy storage module (27) is inserted into the expandable equipment rack (17) along the guide rail (8); the rear plate (3) integrates a cooling medium manifold (1), an electrical floating connector (4), a blind-plug fluid connector (6), and a positioning component; the cooling medium manifold (1) includes two independently set liquid inlet pipes and liquid outlet pipes, and the liquid inlet pipes and liquid outlet pipes are integrally formed inside the rear plate (3) and along the vertical direction. The inlet and outlet pipes are connected to the corresponding blind-plug fluid connectors (6), so that the medium in the cooling medium manifold (1) can be connected to the fluid interface on the energy storage module (27) through the blind-plug fluid connectors (6) to form a cooling medium circulation channel; the positioning component is used to guide the energy storage module (27) to achieve blind-plug docking with the electrical floating connector (4) and the blind-plug fluid connectors (6); multiple expandable equipment racks (17) can be stacked vertically and / or assembled horizontally, and the cooling medium manifolds (1) of adjacent expandable equipment racks (17) are sealed and connected vertically; the bottom end of the cooling medium manifold (1) of the bottom expandable equipment rack (17) is connected to the external fluid connector (25); the bottom of the bottom expandable equipment rack (17) is provided with a shock absorber I (19), and the top expandable equipment rack (17) is equipped with a cover plate (16), and the cooling medium manifold (1) of the top expandable equipment rack (17) is sealed by the cover plate (16).

2. The expandable modular electronic cabinet according to claim 1, characterized in that, The vertically adjacent expandable device racks (17) are locked together by connectors.

3. The expandable modular electronic cabinet according to claim 2, characterized in that, The connectors include a connecting block (18) mounted on side plate I (7) and side plate II (10) and a corner bracket support (2) mounted on rear plate (3).

4. The expandable modular electronic cabinet according to claim 1, characterized in that, The positioning component is a positioning pin seat (5), which is used to form a plug-in guiding engagement with the guide pin on the back of the energy storage module (27).

5. The expandable modular electronic cabinet according to claim 1, characterized in that, Both ends of the inlet and outlet pipes are provided with sealing grooves and fitted with pipe sealing rings (13) to achieve sealed connection when stacked vertically; the inlet and outlet pipes are respectively connected to the corresponding blind-plug fluid connectors (6).

6. The expandable modular electronic cabinet according to claim 1, characterized in that, The expandable device rack (17) has a cabling rack (23) mounted on its back for bundling and securing cables.

7. The expandable modular electronic cabinet according to claim 1, characterized in that, The topmost expandable device rack (17) has a junction box (21) installed at its rear.

8. The expandable modular electronic cabinet according to claim 7, characterized in that, The junction box (21) has a shock absorber II (20) mounted on its back.

9. The expandable modular electronic cabinet according to claim 1, characterized in that, The expandable device rack (17) is equipped with a leakage monitoring device (11), which is located directly below the blind-fit fluid connector (6).

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