An integrated cabinet for a flywheel converter

By dividing the electrical control cabinet of the flywheel energy storage system into a power area and a control area, and adopting a pull-out cabinet and multi-layer isolation bracket design, the problems of large space occupation and inconvenient maintenance in the existing technology are solved, achieving efficient space utilization and convenient maintenance.

CN224401827UActive Publication Date: 2026-06-23GUANGDONG RUILAI HUAKONG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG RUILAI HUAKONG TECHNOLOGY CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The electrical control cabinets of existing flywheel energy storage systems are usually distributed, which results in large space occupation and inconvenient maintenance. Furthermore, the flywheel power cabinet and control cabinet are installed separately and it is difficult to combine them into one cabinet, which affects space utilization and maintenance efficiency.

Method used

Design an integrated cabinet for a flywheel converter, which is divided into a power area and a control area by a partition structure, where power components that provide operating power and control components are installed respectively. A pull-out cabinet and multi-layer isolation brackets are used to achieve functional isolation and convenient maintenance.

Benefits of technology

It has achieved a space utilization rate increase of over 50%, simplified the maintenance process, improved the heat dissipation efficiency and structural stability of the equipment, reduced the risk of accidental contact, and enhanced the maintainability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an integrated cabinet body of flywheel converter, and the cabinet body is divided into power area and control area through the partition structure, at least one pull-out box is equipped in the control area, the pull-out box is used for installing the control component and is convenient for pull-out maintenance, the partition structure includes partition frame and the baffle covered and installed on the partition frame, realizes the physical isolation of power area and control area, thereby integrates power area and control area in the same cabinet body, realizes functional isolation through the baffle at the same time, greatly reduces the overall floor area, improves single cabinet space utilization, especially suitable for the scene of higher space compactness requirement such as computer lab, energy storage power station. Through the setting of pull-out box, it is convenient to directly pull out the cabinet operation, does not need to dismount fixed bolt or removes the periphery component as a whole, and maintenance time is shortened.
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Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology for flywheel energy storage systems, and in particular to an integrated cabinet for a flywheel converter. Background Technology

[0002] In existing technologies, a flywheel energy storage system consists of a flywheel power cabinet and a flywheel control cabinet. The flywheel control cabinet and the flywheel power cabinet are two independent cabinets with inconsistent length, width, and height dimensions, making parallel integration difficult, occupying a large volume, and wasting space. Moreover, the electrical control cabinets of existing flywheel energy storage systems typically adopt a distributed layout, mainly containing basic components such as circuit breakers, relays, and control boards.

[0003] Chinese Patent Publication No. CN219739645U discloses a centralized control cabinet, which includes a cabinet body with a hinged door. A partition plate is fixedly installed inside the cabinet cavity, with the upper surface of the partition plate forming an upper space and the lower surface forming a lower space. A fixing block is provided inside the door, and the fixing block has a partition groove for holding the partition plate. The partition plate provides two spaces, allowing heating elements to be installed separately from other components, further ensuring that other components are not affected by hot air. The cabinet is divided into two independent spaces, an upper space 21 and a lower space 22, by a horizontal partition plate. Each space has a fixed function, such as one space for heating elements and the other for general components. Although integration is possible, this is only to separate the heating elements from other components and solve the problem of reduced lifespan of other components due to prolonged exposure to hot air. The flywheel power cabinet and flywheel control cabinet still need to be installed separately, occupying space and making maintenance more complicated. In addition, its internal components are installed directly inside the cabinet without functional partitioning, which makes maintenance inconvenient. Replacing components requires a complete power outage, affecting the continuous operation of the system.

[0004] Therefore, it is necessary to design an integrated cabinet for the flywheel converter to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an integrated cabinet for a flywheel converter, which solves problems such as space occupation and inconvenient maintenance, enables rapid testing, highly centralized functions, high maintainability, and convenient maintenance.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An integrated cabinet for a flywheel converter includes a cabinet 100, which is divided into a power area 1 and a control area 2 by a partition structure. The power area 1 is used to install power components that provide operating power to the flywheel converter, and the control area 2 is used to install control components that control the operation of the flywheel converter. The control area 2 is provided with at least one pull-out box for installing the control components and for easy removal and maintenance. The partition structure includes a partition frame and a partition plate installed on the partition frame to achieve physical isolation between the power area 1 and the control area 2.

[0008] Preferably, the partition frame is formed by the main vertical beam 1011 and the main longitudinal beam 1013 of the cabinet 100, and the partition is a metal partition 104, which is installed on the partition frame by detachable bolts.

[0009] Preferably, the power zone 1 is vertically divided into an upper region, a middle region, and a lower region; the upper region is equipped with a pre-charging unit assembly 11, the middle region is equipped with an inverter-rectifier assembly 12 integrating an inverter unit and a rectifier unit via a first isolation bracket 109, and the lower region is equipped with a filter 13, an input-side circuit breaker 14, and a surge protector 15.

[0010] Preferably, the front side of the power zone 1 is vertically equipped with a plurality of openable first safety protection isolation plates 16; the first safety protection isolation plates 16 are provided with hollow holes 161 corresponding to the on / off handle position of the input side circuit breaker 14, and each first safety protection isolation plate 16 is provided with a handle 162.

[0011] Preferably, the control area 2 is provided with a second isolation bracket 201 along the vertical direction, and the pull-out box includes a first pull-out box 21 and a second pull-out box 22 installed on the second isolation bracket 201; the first pull-out box 21 integrates a flywheel management system module, and the second pull-out box 22 is installed with a DC power supply module; a first installation sub-area 25 is formed between the top of the control area 2 and the second isolation bracket 201, and a second safety protection isolation plate 202 is installed on the front side corresponding to the first installation sub-area 25.

[0012] Preferably, the control area 2 is provided with a third isolation bracket 203 below the second isolation bracket 201, and a UPS emergency power module 23 is installed on the third isolation bracket 203; a second installation sub-area 26 is formed between the second isolation bracket 201 and the third isolation bracket 203, and a safety protection isolation component 24 is provided on the front side of the control area 2 corresponding to the second installation sub-area 26. The safety protection isolation component 24 includes a sealed first protective plate 241 and a second protective plate 242 located on the left and right sides, and a third protective plate 243 with a grille located in the middle for the cooling fan inside the UPS emergency power module 23 to blow out heat.

[0013] Preferably, the control area 2 has a third mounting sub-area 27 below the second mounting sub-area 26, and the third mounting sub-area 27 is equipped with an electrical control component 28.

[0014] Preferably, the bottom of the cabinet 100 is provided with a base mounting seat 1025, which is used to store the cabinet's wiring. The top surface of the base mounting seat 1025 has a first wire hole cover 291 for the wiring to pass through in the power area 1 and the control area 2 respectively. The partition is provided with a second wire hole cover 292.

[0015] Preferably, the cabinet 100 includes: a cabinet frame 101, a sealing plate assembly that is installed on the outside of the cabinet frame 101 by detachable bolts, and a cabinet door 103 that is hinged to the cabinet frame 101.

[0016] Preferably, the inverter rectifier assembly 12 is supported by a hollow first isolation bracket 109, which includes a first reinforcing support crossbeam 1092 and a first reinforcing support longitudinal beam 1093, and the bottom of the inverter rectifier assembly 12 has a hollow structure.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model integrates the core functions of the original power cabinet and the control cabinet into the same cabinet. While achieving functional isolation through metal partitions, it significantly reduces the overall footprint, increasing the space utilization of a single cabinet by more than 50%. It also facilitates the side-by-side installation of multiple devices, making it particularly suitable for scenarios with high space constraints, such as computer rooms and energy storage power stations.

[0019] 2. This utility model further divides the power zone into three sub-regions: upper, middle, and lower. Components or devices related to providing the main power are installed in these sub-regions, corresponding to core functional modules such as pre-charging, inverter rectification, and filtering protection. Each component has a fixed installation position and is connected by detachable bolts. This structured layout allows maintenance personnel to quickly locate faulty components without touching unrelated components during disassembly and assembly. The cabinet frame forms a rigid structure through main longitudinal beams, main transverse beams, multiple sets of auxiliary mounting beams, and reinforcing plates. Combined with the hollow design of the first isolation bracket, this ensures the stable installation of heavy components such as inverter rectification components, reducing connection loosening caused by vibration. Furthermore, the hollow structure at the bottom and the partitioned layout create a natural airflow channel, accelerating heat dissipation from power devices such as inverter rectification components, improving heat dissipation efficiency, effectively solving the overheating risk of high-power equipment during long-term operation, and extending the service life of core components. This strengthens structural stability and heat dissipation performance, ensuring equipment lifespan. The unified cabinet frame and modular installation method, with all components connected by bolts, allow for pre-assembly and rapid splicing of components during production, reducing assembly errors.

[0020] 3. The first safety isolation plate of this utility model physically separates the internal components from the external operating environment, forming a rigid protective barrier. By pre-drilling holes only at the on / off handle of the input-side circuit breaker, it ensures quick on / off operation in emergencies (without disassembling the isolation plate) while preventing direct contact with other components, reducing the risk of accidental contact. The design of multiple openable isolation plates allows for individual opening of the corresponding isolation plate based on the fault location during maintenance, without the need to dismantle the entire protective structure. For example, when maintaining the upper pre-charging unit components, only the top first safety isolation plate needs to be opened, without affecting the protection of the middle inverter rectifier components; combined with the detachable bolt-connected component installation method, it further shortens maintenance preparation time and improves maintenance efficiency.

[0021] 4. The first and second pull-out cabinets at the top of the control area of ​​this utility model highly integrate the FMS module and the 110V power supply module, arranging them side-by-side in a compact structure, facilitating maintenance and enabling future expansion. The pull-out structure allows the module to be directly pulled out of the cabinet for operation without disassembling the fixing bolts or removing the surrounding components, shortening maintenance time. The second safety protection isolation plate forms a physical barrier when closed, isolating the control area from the outside environment. It is only opened during maintenance, avoiding the risk of accidental contact in non-operational states, making it particularly suitable for isolating multiple low-voltage modules from the surrounding high-voltage environment. Simultaneously, the control area is divided into three installation sub-areas by the second and third isolation brackets, corresponding to the functional zones of "core control module FMS / DC power supply—emergency power supply UPS—basic electrical control components," ensuring clear functional zoning and independent module functions in each sub-area, facilitating rapid fault location and reducing the diagnostic costs for maintenance personnel. Attached Figure Description

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This is one of the three-dimensional structural diagrams of the cabinet door of this utility model in the open state;

[0024] Figure 3 This is the second three-dimensional structural diagram of the cabinet door of this utility model in the open state;

[0025] Figure 4 This is one of the structural schematic diagrams of this utility model, which conceals some components;

[0026] Figure 5 This is the second structural schematic diagram of the present invention, which conceals some components;

[0027] Figure 6 This is the third structural schematic diagram of the present invention, which conceals some components;

[0028] Figure 7 for Figure 1 A structural diagram showing the removal of the first and second safety protection isolation plates from the original structure. Detailed Implementation

[0029] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 7 As shown, the integrated cabinet of the flywheel converter of this utility model includes a cabinet 100, which includes a cabinet frame 101, a sealing plate assembly that is detachably bolted to the outside of the cabinet frame 101, and a cabinet door 103 hinged to the cabinet frame 101. The cabinet frame 101 is composed of six main vertical beams 1011, four main horizontal beams 1012, and six main longitudinal beams 1013. The sealing plate assembly includes a left sealing plate 1021, a right sealing plate 1022, a top sealing plate 1023, a rear sealing plate 1024, and a base mounting seat 1025 that are detachably bolted to the cabinet frame 101. The cabinet 100 is divided into a power area 1 on the left and a control area 2 on the right by a metal partition 104. Figure 1 The area is enclosed in red. The power zone 1 of the integrated cabinet provides power to the flywheel converter, and the control zone 2 controls the operation of the flywheel converter. The two main vertical beams 1011 and two main longitudinal beams 1013 in the middle form a central partition frame. The metal partition 104 is mounted on the central partition frame using detachable bolts. The central partition frame and the metal partition 104 together form a partition structure.

[0031] As mentioned above, in existing technologies, the flywheel power cabinet and control cabinet are separate units, which are difficult to combine due to size differences and occupy twice the space. This solution integrates the power area, which originally housed the core functions of the power cabinet, and the control area into the same cabinet. Functional isolation is achieved through metal partitions, while significantly reducing the overall footprint and increasing the space utilization of a single cabinet by more than 50%. It also facilitates the side-by-side installation of multiple devices, making it particularly suitable for scenarios with high space constraints, such as computer rooms and energy storage power stations.

[0032] like Figure 4 and Figure 5 As shown, furthermore, one or more first auxiliary mounting longitudinal beams 105 are connected in the middle of the partition frame to enhance strength or facilitate component connection and installation. Multiple second auxiliary mounting longitudinal beams 106, also for enhancing strength or facilitating component connection and installation, are connected between the front and rear main vertical beams 1011 on the left side of the cabinet frame 101. Multiple third auxiliary mounting longitudinal beams 107, also for enhancing strength or facilitating component connection and installation, are connected between the front and rear main vertical beams 1011 on the right side of the cabinet frame 101. One or more first auxiliary mounting crossbeams 1081, also for enhancing strength or facilitating component connection and installation, are connected between the left and middle main vertical beams 1011 on the rear side of the cabinet frame 101. One or more second auxiliary mounting crossbeams 1082 are connected between the right and middle main vertical beams 1011 on the rear side of the cabinet frame 101. In this way, the strength of the cabinet frame is enhanced while facilitating the installation of various components using bolts.

[0033] The power zone 1 has a pre-charging unit assembly 11 horizontally mounted in its upper region via a second auxiliary mounting beam 106 and a first auxiliary mounting beam 105, which are symmetrically arranged on the left and right sides.

[0034] The power zone 1 has an inverter-rectifier assembly 12, integrating an inverter unit and a rectifier unit, mounted in its central region via a second auxiliary mounting beam 106. The side of the inverter-rectifier assembly 12 is detachably connected to the second auxiliary mounting beam 106 and the first auxiliary mounting beam 1081 via bolts to complete the installation. Furthermore, considering the large size of the inverter-rectifier assembly 12, a vertical first reinforcing plate 1091 is connected between a pair of adjacent second auxiliary mounting beams 106 in the cabinet frame 101. A first reinforcing support beam 1092 connects the symmetrical first auxiliary mounting longitudinal beams 105. The bottom front side of the inverter rectifier assembly 12 is detachably connected to the first reinforcing support beam 1092 by bolts. Two first reinforcing support longitudinal beams 1093 are also connected between the first reinforcing support beam 1092 and the first auxiliary mounting beam 1081 located symmetrically on the rear side. This facilitates the fixation of each part of the inverter rectifier assembly 12 by the frame, ensuring its installation stability. All beams are installed using detachable bolts, making disassembly and maintenance convenient. Furthermore, the two first reinforcing support longitudinal beams 1093 connect to the left and right sides of the bottom of the inverter rectifier assembly 12. The bottom of the inverter rectifier assembly 12 has a hollow structure, which serves both as support and facilitates heat dissipation. The first reinforcing support beam 1092 and the two first reinforcing support longitudinal beams 1093 form a hollow first isolation bracket 109, supporting and isolating the inverter rectifier assembly 12.

[0035] The power zone 1 has a filter 13, an input-side circuit breaker 14, and a surge protector 15 installed in its lower region. The filter 13 is mounted on the top of the base mounting seat 1025 with detachable bolts. A transverse mounting plate 110 connects the first auxiliary mounting beam 105 and the second auxiliary mounting beam 106, and the input-side circuit breaker 14 and the surge protector 15 are both mounted on the transverse mounting plate 110 with bolts. In addition, in a specific implementation, the power supply lines for high-voltage components such as the pre-charging unit assembly 11, the inverter rectifier assembly 12, and the filter 13 in the power zone, such as high-voltage cables and AC busbars, are routed through the gap between the second auxiliary mounting beam 106 and the first auxiliary mounting beam 1081 inside the power zone. The hollow structure of the first reinforcing support beam 1093 and the first isolation bracket 109 not only supports the components but also provides space for the high-voltage cables to pass through.

[0036] As described above, this solution further divides the power zone into three sub-regions: upper, middle, and lower. Components or devices related to providing the main power are installed in these zones, corresponding to core functional modules such as pre-charging, inverter rectification, and filtering protection. Each component has a fixed installation position and is connected by detachable bolts. This structured layout allows maintenance personnel to quickly locate faulty components without touching unrelated components during disassembly and assembly. The cabinet frame forms a rigid structure through main longitudinal beams, main transverse beams, multiple sets of auxiliary mounting beams, and reinforcing plates. Combined with the hollow design of the first isolation bracket, this ensures the stable installation of heavy components such as inverter rectification components, reducing connection loosening caused by vibration. Furthermore, the hollow structure at the bottom and the zoned layout create natural airflow channels, accelerating heat dissipation from power devices such as inverter rectification components. Compared to the existing technology where components are directly attached to the cabinet, this improves heat dissipation efficiency, effectively solves the overheating risk of high-power equipment during long-term operation, and extends the service life of core components. This strengthens structural stability and heat dissipation performance, ensuring equipment lifespan. The unified cabinet frame and modular installation method, with all components connected by bolts, allow for pre-assembly and rapid splicing of components during production, reducing assembly errors.

[0037] like Figure 1 As shown, in a preferred embodiment, the cabinet frame 101 has multiple first safety protection isolation plates 16 installed vertically on the front side of the power area. These plates can be opened for easy maintenance and inspection, and also provide protective isolation. Each first safety protection isolation plate 16 has a perforated hole 161 at the position of the on / off handle of the input-side circuit breaker 14, allowing the on / off handle to extend outside the plate for quick and safe switching. Furthermore, each first safety protection isolation plate 16 is equipped with a handle 162 for easy opening by personnel.

[0038] As described above, the first safety isolation plate physically separates the internal components from the external operating environment, forming a "hard protection barrier." By pre-drilling a perforated hole 161 only at the on / off handle of the input-side circuit breaker, it ensures quick on / off operation in emergencies (without disassembling the isolation plate) while preventing direct contact with other components, reducing the risk of accidental contact. The design of multiple openable isolation plates allows for individual opening of the corresponding isolation plate based on the fault location during maintenance, without requiring the complete removal of the protective structure. For example, when maintaining the upper pre-charging unit components, only the top first safety isolation plate needs to be opened, without affecting the protection of the middle inverter rectifier components; combined with the detachable bolt-connected component installation method, this further shortens maintenance preparation time and improves maintenance efficiency.

[0039] like Figures 4-6As shown, in this case, the control area 2 has a hollowed-out second isolation bracket 201 connected to the middle main vertical beam 1011 and the right main vertical beam 1011 in its upper region by detachable bolts. A first pull-out box 21 and a second pull-out box 22 are installed side-by-side horizontally on the second isolation bracket 201. The second isolation bracket 201 has a hollow structure and divides the space between the top of the control area 2 and the second isolation bracket 201 into a first installation sub-area 25. Furthermore, a second safety protection isolation plate 202, which can be opened for easy inspection and maintenance and provides protective isolation, is installed in front of the first installation sub-area 25. The first pull-out box 21 integrates a flywheel management system module (FMS module), and the second pull-out box 22 contains a 110V DC power supply module that provides a stable low-voltage DC power supply to all electrical control components within the control area 2.

[0040] Control area 2 is located below the first pull-out cabinet 21 and the second pull-out cabinet 22. A UPS emergency power module 23 is bolted to the control area via a third isolation bracket 203. The space between the second isolation bracket 201 and the third isolation bracket 203 is divided into a second installation sub-area 26. A safety protection isolation component 24 is installed in front of the second installation sub-area 26. The safety protection isolation component 24 includes a sealed first protective plate 241 and a second protective plate 242 located on the left and right sides, and a third protective plate 243 with a grille located in the middle for heat dissipation by the internal cooling fan of the UPS emergency power module 23. Thus, the safety protection and isolation components of the second installation sub-area are sealed by the first protective plate on the left and the second protective plate on the right, and the third protective plate with a grille in the middle, which can achieve directional heat dissipation for the UPS emergency power module. Specifically, the third protective plate with a grille precisely corresponds to the air outlet of the internal cooling fan of the UPS, forming a directional air duct to ensure heat dissipation efficiency and prevent the UPS from failing to provide emergency power due to overheating. In addition, the first protective plate 241 and the second protective plate 242 isolate the UPS module from the external operating environment to prevent dust, moisture intrusion or accidental human contact. Especially when the UPS is working, physical isolation reduces the risk of electric shock.

[0041] The control area 2 is further provided with a third installation sub-area 27 below the second installation sub-area 26, and the third installation sub-area 27 is equipped with an electrical control component 28.

[0042] As described above, the first and second pull-out enclosures at the top of the control area highly integrate the FMS module and the 110V power supply module, arranging them side-by-side in a compact structure, facilitating maintenance and enabling future expansion. Specifically, the pull-out structure allows the module to be directly pulled out of the cabinet for operation without removing fixing bolts or dismantling surrounding components. For example, when inspecting the FMS module, simply pulling out the first pull-out enclosure exposes the interface and internal structure, shortening maintenance time. The second safety protection isolation panel forms a physical barrier when closed, isolating the module from the outside. It is only opened during maintenance, avoiding the risk of accidental contact in non-operational states, which is particularly suitable for the isolation requirements of multiple low-voltage modules in the control area from the surrounding high-voltage environment. At the same time, the control area is divided into three installation sub-areas by the second isolation bracket 201 and the third isolation bracket 203, corresponding to the three functional zones of "core control module FMS / DC power supply - emergency power supply UPS - basic electrical control components". This ensures clear functional zoning, with each sub-area module having independent functions, facilitating rapid fault location and reducing the judgment cost for maintenance personnel. In summary, the control area achieves a dual improvement in safety and efficiency through "pull-out design + layered protection + functional zoning," resulting in the integrated cabinet of the flywheel converter in this case exhibiting high reliability, ease of maintenance, and strong security.

[0043] like Figure 2 and Figure 6 As shown, in one specific implementation, the base mounting base 1025 is used to store the wiring used in the flywheel converter cabinet, and has one or more first wiring hole covers 291 on its top surface in both the power area and the control area for limiting the wiring to pass through. The metal partition 104 has a second wiring hole cover 292. Thus, the base mounting base 1025 can serve as a wiring storage compartment, centrally storing the strong and weak current cables inside the cabinet, such as the strong current cables in the power area and the signal lines in the control area, avoiding tangling and wear caused by the wiring being randomly stacked at the bottom of the cabinet. The separate first wiring hole covers 291 in the power area and the control area allow for directional separation of strong current lines passing through holes in the power area and weak current lines passing through holes in the control area, avoiding cross-interference between strong and weak current lines, especially reducing interference between weak current signals in the control area and strong current signals in the power area. At the same time, the covers provide limiting protection for the wiring, reducing loosening of wiring interfaces due to cabinet vibration and extending the service life of the wiring. The base mounting base achieves wiring standardization and anti-interference through wiring storage and directional wiring. The second wiring hole cover 292 is provided so that the lines / wiring harnesses of the electrical control components 28 in the control area can be limited to pass through into the power area. This retains the isolation function of the partition (to prevent the lines from being unable to connect across areas when there is no hole) and enables the necessary line interaction between the two areas through directional wiring.

[0044] As a preferred embodiment, the flywheel converter cabinet adopts an ultra-lightweight design. All mounting components, such as the cabinet frame, sealing plate assembly, cabinet door, and the first pull-out cabinet, are made of corrosion-resistant aluminum-zinc coated steel or aerospace-grade aluminum alloy. Furthermore, they are riveted using aerospace-grade processes, eliminating weld heat-affected zones and visible defects such as welding deformation. All internal electrical components are mounted using a modular array of holes, allowing for easy adjustment based on different suppliers' electronic components. All components are installed using movable bolts, ensuring high maintainability, strong replaceability, and extremely high expandability.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An integrated cabinet for a flywheel converter, comprising a cabinet (100), characterized in that, The cabinet (100) is divided into a power area (1) and a control area (2) by a partition structure. The power area (1) is used to install the power components that provide operating power for the flywheel converter. The control area (2) is used to install the control components that control the operation of the flywheel converter. The control area (2) is provided with at least one pull-out box. The pull-out box is used to install the control components and facilitates pull-out maintenance. The partition structure includes a partition frame and a partition plate installed on the partition frame to achieve physical isolation between the power area (1) and the control area (2).

2. The integrated cabinet according to claim 1, characterized in that, The partition frame is formed by the main vertical beam (1011) and the main longitudinal beam (1013) of the cabinet (100), and the partition is a metal partition (104), which is installed on the partition frame by detachable bolts.

3. The integrated cabinet according to claim 1, characterized in that, The power zone (1) is vertically divided into an upper region, a middle region and a lower region; the upper region is equipped with a pre-charge unit assembly (11), the middle region is equipped with an inverter rectifier assembly (12) integrating an inverter unit and a rectifier unit via a first isolation bracket (109), and the lower region is equipped with a filter (13), an input-side circuit breaker (14) and a surge protector (15).

4. The integrated cabinet according to claim 3, characterized in that, The power area (1) has a plurality of openable first safety protection isolation plates (16) installed vertically on the front side; the first safety protection isolation plate (16) has a hollow hole (161) corresponding to the on / off handle position of the input side circuit breaker (14), and each first safety protection isolation plate (16) has a handle (162).

5. The integrated cabinet according to claim 1, characterized in that, The control area (2) is provided with a second isolation bracket (201) along the vertical direction. At least one pull-out box includes a first pull-out box (21) and a second pull-out box (22) installed on the second isolation bracket (201). The first pull-out box (21) integrates a flywheel management system module, and the second pull-out box (22) is equipped with a DC power supply module. A first installation sub-area (25) is formed between the top of the control area (2) and the second isolation bracket (201), and a second safety protection isolation plate (202) is installed on the front side of the corresponding first installation sub-area (25).

6. The integrated cabinet according to claim 5, characterized in that, The control area (2) is provided with a third isolation bracket (203) below the second isolation bracket (201), and a UPS emergency power module (23) is installed on the third isolation bracket (203); a second installation sub-area (26) is formed between the second isolation bracket (201) and the third isolation bracket (203). The control area (2) is provided with a safety protection isolation component (24) on the front side of the corresponding second installation sub-area (26). The safety protection isolation component (24) includes a sealed first protective plate (241) and a second protective plate (242) located on the left and right sides, and a third protective plate (243) with a grille located in the middle for the cooling fan inside the UPS emergency power module (23) to blow out heat.

7. The integrated cabinet according to claim 6, characterized in that, The control area (2) has a third installation sub-area (27) below the second installation sub-area (26), and the third installation sub-area (27) is equipped with an electrical control component (28).

8. The integrated cabinet according to claim 1, characterized in that, The cabinet (100) has a base mounting seat (1025) at the bottom. The base mounting seat (1025) is used to store the cabinet's wiring. The top surface of the base has a first wire hole cover (291) for the wiring to pass through in the power area (1) and control area (2), respectively. The partition has a second wire hole cover (292).

9. The integrated cabinet according to claim 1, characterized in that, The cabinet (100) includes: a cabinet frame (101), a panel assembly installed outside the cabinet frame (101) by removable bolts, and a cabinet door (103) hinged to the cabinet frame (101).

10. The integrated cabinet according to claim 3, characterized in that, The inverter rectifier assembly (12) is supported by a hollow first isolation bracket (109), which includes a first reinforcing support crossbeam (1092) and a first reinforcing support longitudinal beam (1093). The bottom of the inverter rectifier assembly (12) has a hollow structure.