Flywheel converter cabinet with good heat dissipation

Abstract

The utility model discloses a flywheel converter cabinet body that radiates well, through the separation structure divides cabinet body into power area and control area, realizes two area physical isolation, integrates power assembly and control assembly in same cabinet body, and the space utilization is greatly promoted. The cabinet body is equipped with top heat dissipation structure and bottom heat dissipation structure, forms " bottom air intake -> flows through element -> top air outlet " high -efficient convection air duct: power area passes through top first heat dissipation mesh and goes out naturally, and control area passes through top first fan and forces exhaust, and the heat dissipation efficiency is improved significantly. Control area installs third isolation support and second isolation support in proper order along the vertical direction, and the longitudinal length of third isolation support is shorter than second isolation support, avoids lower element to block upper heat dissipation path. The second isolation support is installed on the pull -out box, and the bottom of the box is equipped with filter mesh, and the top is equipped with heat dissipation mesh, and the precise heat dissipation is realized while being convenient for pulling -out maintenance, and the problem of traditional cabinet body heat dissipation deficiency, inconvenient maintenance is solved effectively.

Description

Technical Field

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

[0002] In existing technologies, a flywheel energy storage system consists of a flywheel power cabinet and a flywheel control cabinet. These are two separate cabinets with inconsistent dimensions, making parallel integration difficult, consuming significant space, and wasting valuable volume. Furthermore, the electrical control cabinets in existing flywheel energy storage systems typically employ a distributed layout, mainly containing basic components such as circuit breakers, relays, and control boards. Moreover, because the flywheel converter cabinet integrates many electrical components, the limited internal space can lead to inadequate heat dissipation, resulting in a reduced lifespan for these components.

[0003] Chinese Patent Publication No. CN204498004U discloses a centralized control cabinet, in which the cabinet is divided into upper and lower spaces by a partition, where heating elements and other components are installed respectively to avoid thermal interference. The upper and lower spaces are respectively equipped with heat dissipation holes (heat dissipation hole one and heat dissipation hole two) to dissipate heat through natural or forced cooling. Although the design of the partition and the distribution of the heat dissipation holes can ensure independent heat dissipation in different areas, this solution still has the following key technical defects:

[0004] 1. Although the centralized control cabinet in the existing technical documents divides the upper and lower spaces with partitions, it does not limit the installation order or height of components within the same space. In practical applications, components with high heat dissipation requirements, such as power modules, may be arranged disorderly with lower components, causing higher components to block the air intake path of heat dissipation holes or internal convection air ducts, forming local heat accumulation, especially in adjacent areas of the upper and lower spaces, which cannot meet the heat dissipation requirements of high-power components in the flywheel converter.

[0005] 2. The components are directly mounted on the surface of the solid partition plate, with the bottom in close contact with the plate. Heat accumulates on the partition plate through conduction, and direct heat dissipation from the bottom of the components to the air cannot be achieved through the hollow structure. This results in an extended heat dissipation path and increased thermal resistance. Moreover, the solid partition plate blocks the natural air convection between the upper and lower spaces. Even if heat dissipation holes are set, only local air exchange can be achieved in a single space. It is impossible to form an overall heat dissipation cycle across regions, and heat from high-temperature areas cannot be quickly dissipated to low-temperature areas.

[0006] Therefore, it is necessary to design a flywheel converter enclosure with good heat dissipation to solve the above-mentioned technical problems. Utility Model Content

[0007] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a flywheel converter cabinet with good heat dissipation, which solves the problems of insufficient heat dissipation efficiency, poor structural flexibility, and high maintenance costs in existing technologies, and achieves efficient heat dissipation and convenient maintenance for the flywheel converter cabinet.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A flywheel converter cabinet with good heat dissipation includes a cabinet 100, which is divided into a power area 1 and a control area 2 by a partition structure. 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. 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 cabinet 100 has a top heat dissipation structure for easy heat dissipation and air exhaust, and a bottom heat dissipation structure for easy heat dissipation and air intake. The control area 2 is equipped with a third isolation bracket 203 and a second isolation bracket 201 in sequence from bottom to top, and the longitudinal extension length of the third isolation bracket 203 is shorter than that of the second isolation bracket 201.

[0010] Preferably, the cabinet 100 includes: a cabinet frame 101, a sealing plate assembly that is installed outside the cabinet frame 101 by detachable bolts, and a cabinet door 103 that is hinged to the cabinet frame 101; 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.

[0011] Preferably, the top heat dissipation structure includes: a first heat dissipation mesh 31 provided at the corresponding position on the top of the power zone 1, and a first fan 32 provided at the corresponding position on the top of the control zone 2; the bottom heat dissipation structure is a second heat dissipation mesh 33 opened at the bottom of the cabinet door 103, which is used to allow cold air to enter the interior of the power zone 1 and / or the control zone 2 from the outside of the cabinet 100, forming a bottom air intake channel.

[0012] Preferably, at least one pull-out box is installed on the second isolation bracket 201. The pull-out box is used to install the control components and facilitates pull-out maintenance. The 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 integrates a DC power supply module. A UPS emergency power supply module 23 is installed on the third isolation bracket 203. The longitudinal length of the UPS emergency power supply module 23 is shorter than that of the first pull-out box 21 and the second pull-out box 22.

[0013] Preferably, the first pull-out box 21 has a first filter mesh 211 at its bottom and a fourth heat dissipation mesh 212 at its top; the second pull-out box 22 has a second filter mesh 221 at its bottom and a second fan 222 for forced airflow and a fifth heat dissipation mesh 223 at its top.

[0014] Preferably, the third isolation bracket 203 has third heat dissipation mesh holes 2031 on both sides of the UPS emergency power module 23; the second isolation bracket 201 has a hollow structure, the space between the second isolation bracket 201 and the top of the control area 2 is divided into a first installation sub-area 25, and the space between the third isolation bracket 203 and the second isolation bracket 201 is divided into a second installation sub-area 26.

[0015] Preferably, the power zone 1 is vertically divided into an upper region, a middle region, and a lower region; the power components in the power zone 1 are arranged vertically in an alternating manner: a pre-charging unit component 11 is horizontally installed in the upper region, an inverter rectifier component 12 is vertically installed in the middle region via a first isolation bracket 109, a filter 13 is vertically installed on the front side of the lower region, and an input-side circuit breaker 14 and a surge protector 15 are installed on the rear side of the lower region via a horizontal mounting plate 110; the bottom of the inverter rectifier component 12 has a hollow structure and is supported by the hollow first isolation bracket 109.

[0016] 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 have a hollow hole 161 at the handle position of the input side circuit breaker 14, and each of the first safety protection isolation plates 16 is provided with a handle 162; the first safety protection isolation plate 16 in the lowest area of ​​the power zone 1 has a sixth heat dissipation mesh 163 at its bottom.

[0017] Preferably, the control area 2 is provided with a safety protection isolation component 24 on the front side 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 heat dissipation by the internal cooling fan of the UPS emergency power module 23. The control area 2 is provided with a third installation sub-area 27 below the third isolation bracket 203. The third installation sub-area 27 is equipped with an electrical control component 28.

[0018] Preferably, the cabinet frame 101, sealing plate assembly, cabinet door 103 and pull-out box of the cabinet 100 are made of aluminum-zinc coated plate or aviation aluminum alloy and are connected by riveting process.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model integrates the power area and control area into the same cabinet. While achieving functional isolation through metal partitions, it significantly reduces the overall footprint, improves the space utilization of a single cabinet, and facilitates the side-by-side installation of multiple devices. It is particularly suitable for scenarios with high space requirements, such as computer rooms and energy storage power stations. Secondly, the flywheel converter cabinet in this design forms a complete "bottom inlet → flow through components → top outlet" airflow duct at the bottom and top outlet at the bottom, allowing cold air to enter from the bottom inlet and hot air to exit through the top. This conforms to the principles of air thermodynamics, creating efficient convection and reducing reliance on fans. By shortening the longitudinal extension length of the third isolation bracket from that of the second isolation bracket in the control area, subsequent cabinets or modules installed on the third and second isolation brackets are installed in a bottom-to-top, shorter-to-longer configuration. This optimizes the installation method, avoids the long cabinets blocking the heat dissipation path of the shorter cabinets above, and ensures uniform heat dissipation at each layer. Specifically, in the bottom heat dissipation structure, the second heat dissipation mesh of the cabinet bottom door serves as the air intake channel, allowing cold air to enter from the bottom; in the top heat dissipation structure, the power area is naturally ventilated through the first heat dissipation mesh, and the control area is forced to exhaust air through the first fan, forming a complete forced air cooling channel of "bottom air intake → airflow through components → top air exhaust", which improves efficiency compared to traditional single-space heat dissipation.

[0021] 2. The UPS emergency power module is longitudinally mounted on the third isolation bracket of this utility model, and third heat dissipation mesh holes are set on both sides of it. Combined with the hollow structure of the second isolation bracket, the third heat dissipation mesh holes on both sides of the UPS emergency power module increase the side heat exchange area, allowing the heat generated during UPS operation to be dissipated through a dual path of side and top, avoiding localized high temperatures caused by unidirectional heat dissipation and solving the problem of overheating failure in traditional enclosed installations. By adopting a hollow structure for the second isolation bracket, the solid bracket is prevented from obstructing the airflow in the upper part of the control area, allowing the forced exhaust air from the top first fan to flow smoothly through the pull-out cabinet, driving overall air circulation in the control area and improving airflow efficiency.

[0022] 3. This utility model solves the airflow obstruction problem of traditional same-size layouts by designing the longitudinal length of the UPS emergency power module to be shorter than the first and second pull-out cabinets. This shortens the UPS module length, creating a "stepped" gap between its top and the bottom of the pull-out cabinets, preventing lower components from blocking the entry of cold air into the pull-out cabinets and increasing the longitudinal airflow in the control area. Furthermore, the lower filter inlet and upper fan forced airflow of the pull-out cabinets work in tandem with the cabinet's bottom-in, top-out forced air cooling channel, preventing airflow reversal and achieving a coordinated cooling duct, further improving heat dissipation efficiency. The first and second filter holes in the first and second pull-out cabinets intercept dust and debris, preventing dust from adhering to the circuit boards of the FMS module and the capacitors of the V power module, reducing the risk of short circuits or performance degradation due to dust accumulation and extending service life. The forced airflow function of the second fan accelerates the airflow speed within the cabinets, greatly improving heat dissipation efficiency, especially suitable for equipment with high heat generation, ensuring stable operation even in high-temperature environments. The fourth ventilation mesh on the top of the first pull-out enclosure utilizes the principle of rising hot air to quickly expel hot air from inside the enclosure, creating a continuous natural convection circulation. Simultaneously, the fifth ventilation mesh works in conjunction with the second fan. The second fan at the top of the enclosure acts as the first-stage exhaust fan, accelerating the expulsion of hot air and creating a low-pressure zone inside the enclosure, further drawing in cool air from the bottom. The first fan at the top of the enclosure acts as the second-stage exhaust fan, drawing the expelled hot air and heat from other areas of the control zone out of the enclosure, creating a pressure gradient that enhances both localized and overall airflow, increasing the overall air pressure in the control zone. This eliminates the need for high-powered fans to meet cooling requirements, further optimizing heat dissipation and ensuring the performance and reliability of the equipment inside the enclosure. Furthermore, the first and second pull-out enclosures employ a combination of natural and forced cooling based on the differences in heat dissipation from the internal components. This ensures effective cooling while reducing energy consumption, effectively solving problems such as airflow obstruction, dust accumulation, and uneven heat dissipation in the control zone.

[0023] 4. In this invention, the power components in the power zone are arranged in a vertically staggered pattern, especially the pre-charging unit and the inverter / rectifier unit, which are arranged in a "cross-shaped" pattern. This avoids complete vertical overlap of the components and provides ample ventilation channels for cool air. After entering through the second heat dissipation mesh at the bottom, the cool air flows smoothly upwards along the gaps between the components, passing sequentially through the pre-charging unit, inverter / rectifier unit, and other core heat-generating components. After fully absorbing heat, the hot air is discharged through the first heat dissipation mesh at the top. This orderly ventilation path ensures sufficient contact between the cool air and the heat-generating components, greatly improving heat dissipation efficiency, effectively reducing the temperature within the power zone, and preventing damage from overheating. Furthermore, the staggered arrangement allows cool air to evenly cover each power component, preventing hot spots caused by poor heat dissipation in densely packed areas. Each component receives good heat dissipation, resulting in a more uniform temperature distribution, thereby improving the overall stability and reliability of the power zone and extending the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is the front view of the present invention;

[0025] Figure 2 This is one of the three-dimensional structural diagrams of the cabinet door of this utility model in the open state;

[0026] Figure 3 This is the second three-dimensional structural diagram of the cabinet door of this utility model in the open state;

[0027] Figure 4 This is one of the structural schematic diagrams of this utility model, which conceals some components;

[0028] Figure 5 This is the second structural schematic diagram of the present invention, which conceals some components;

[0029] Figure 6 This is the third structural schematic diagram of the present invention, which conceals some components;

[0030] Figure 7 This is a structural diagram of the first and second pull-out boxes;

[0031] Figure 8 for Figure 1 A structural diagram showing the first and second safety protection isolation plates removed from the original structure;

[0032] Figure 9 The fourth structural diagram of this utility model conceals some components. Detailed Implementation

[0033] 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.

[0034] like Figures 1 to 9 As shown, the flywheel converter cabinet with good heat dissipation according to this utility model includes a cabinet 100. 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. 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 installed on the cabinet frame 101 by detachable bolts.

[0035] The cabinet 100 is divided into a power zone 1 on the left and a control zone 2 on the right by a metal partition 104. Power zone 1 provides power to the flywheel converter, while control zone 2 controls the flywheel converter's operation. Two main vertical beams 1011 and two main longitudinal beams 1013 in the middle form a partition frame. The metal partition 104 is mounted on the partition frame with detachable bolts, forming a partition structure. The cabinet 100 has a top heat dissipation structure for easy airflow from the top. This structure includes a first heat dissipation mesh 31 at a corresponding position on the top of power zone 1 and a first fan 32 at a corresponding position on the top of control zone 2. The exhaust port of the first fan 32 faces outwards from the cabinet 100, creating a forced exhaust path from the inside to the outside of control zone 2. The cabinet door 103 of the cabinet body 100 is provided with a bottom heat dissipation structure; the bottom heat dissipation structure is a second heat dissipation mesh 33 opened at the bottom of the cabinet door 103, which is used to allow cold air to enter the power area 1 and / or control area 2 from the outside of the cabinet body 100, forming a bottom air intake channel to assist heat dissipation. The control area 2 is connected to a third isolation bracket 203 and a second isolation bracket 201 on the right half of the cabinet frame 101 along the vertical direction from bottom to top.

[0036] As mentioned above, this solution integrates the core functions of the original power cabinet and the control area into the same cabinet. While achieving functional isolation through metal partitions, it significantly reduces the overall footprint, improves the space utilization of a single cabinet, and facilitates the side-by-side installation of multiple devices. It is particularly suitable for scenarios with high space constraints, such as computer rooms and energy storage power stations. Secondly, the flywheel converter cabinet in this solution forms a complete "bottom inlet → flow through components → top outlet" airflow duct at the bottom and top outlet at the bottom, allowing cold air to enter from the bottom inlet and hot air to exit through the top. This conforms to the principles of air thermodynamics, creating efficient convection and reducing reliance on fans. By shortening the longitudinal extension length of the third isolation bracket 203 from that of the second isolation bracket 201 in the control area 2, the subsequent installation of cabinets or modules on the third isolation bracket 203 and the second isolation bracket 201 follows a bottom-to-top, shorter-to-longer arrangement. This optimizes the installation method, avoids the long cabinet blocking the heat dissipation path of the shorter cabinet above, and ensures uniform heat dissipation at each layer. Specifically,

[0037] In the bottom heat dissipation structure, the second heat dissipation mesh 33 of the cabinet bottom door 103 serves as the air intake channel, allowing cold air to enter from the bottom. In the top heat dissipation structure, the power area is naturally ventilated through the first heat dissipation mesh 31, while the control area is forced to exhaust air through the first fan 32, forming a complete forced air cooling channel of "bottom air intake → airflow through components → top air exhaust", which improves efficiency compared to traditional single-space heat dissipation.

[0038] like Figures 4-6 As shown, a UPS emergency power module 23 is longitudinally mounted on the third isolation bracket 203, and third heat dissipation mesh holes 2031 are provided on both sides of the UPS emergency power module 23. A first pull-out box 21 and a second pull-out box 22 are longitudinally mounted on the second isolation bracket 201 and installed side by side with the first pull-out box 21. The second isolation bracket 201 has a hollow structure, and the space between the top of the control area 2 and the second isolation bracket 201 is divided into a first installation sub-area 25. In addition, a second safety protection isolation plate 202 that can be opened for easy inspection and maintenance and to achieve 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 is equipped with a 110V DC power module that provides a stable low-voltage DC power supply for all electrical control components in the control area 2.

[0039] As described above, the UPS emergency power module 23 is vertically mounted on the third isolation bracket 203, and third heat dissipation mesh 2031 is provided on both sides of it. Combined with the hollow structure of the second isolation bracket 201, the third heat dissipation mesh 2031 on both sides of the UPS emergency power module increases the side heat exchange area, allowing the heat generated during UPS operation to be dissipated through both side and top paths, avoiding localized high temperatures caused by unidirectional heat dissipation and solving the problem of overheating failure in traditional enclosed installations. By adopting a hollow structure for the second isolation bracket 201, the solid bracket avoids obstructing the airflow in the upper part of the control area, allowing the forced exhaust of the top first fan 32 to flow smoothly through the pull-out enclosure, driving overall air circulation in the control area and improving airflow efficiency. The second isolation bracket 201 is vertically mounted with a first pull-out box 21 and a horizontally parallel second pull-out box 22, which integrates an FMS module and a 110V DC power supply module, respectively. The pull-out structure allows the box to be pulled out of the cabinet for operation without disassembling the fixing bolts or surrounding components. For example, when inspecting the FMS module, only the first pull-out box needs to be pulled out to expose the interface and internal structure, shortening maintenance time and solving the problem of traditional fixed installations requiring the complete removal of the protective structure.

[0040] Furthermore, such as Figure 4 and Figure 7 The UPS emergency power module 23 is shorter in length than the first pull-out enclosure 21 and the second pull-out enclosure 22. The first pull-out enclosure 21 has a first filter mesh 211 at its bottom and a fourth heat dissipation mesh 212 at its top; the second pull-out enclosure 22 has a second filter mesh 221 at its bottom and a second fan 222 for forced airflow and a fifth heat dissipation mesh 223 at its top. In practice, cool air enters through the second heat dissipation mesh 33 at the bottom and flows smoothly through the third heat dissipation mesh 2031 on both sides of the UPS module before entering the pull-out enclosure area above, forming an unobstructed airflow circulation and solving the problem of localized heat accumulation. Simultaneously, air entering the pull-out enclosure through the bottom filter mesh carries away the heat generated by the internal equipment and is then discharged through the top heat dissipation mesh, helping to maintain the normal operating temperature of the equipment inside the enclosure, reducing equipment failures caused by overheating, and extending the equipment's service life.

[0041] As described above, by designing the longitudinal length of the UPS emergency power module 23 to be shorter than that of the upper first pull-out cabinet 21 and the second pull-out cabinet 22, the airflow obstruction problem of traditional layouts of the same size can be solved. This shortens the UPS module length, creating a "stepped" gap between its top and the bottom of the pull-out cabinet, preventing lower components from blocking the entry of cold air into the pull-out cabinet and increasing the longitudinal airflow in the control area. Furthermore, the forced airflow from the lower filter screen of the pull-out cabinet and the forced airflow from the upper fan complement the forced air cooling channel at the bottom and top of the cabinet, preventing airflow reversal and achieving a coordinated cooling duct, further improving heat dissipation efficiency. The first filter mesh 211 and the second filter mesh 221 of the first pull-out cabinet 21 and the second pull-out cabinet 22 are designed to intercept dust and debris in the air, preventing dust from adhering to the circuit boards of the FMS module and the capacitors of the 110V power module, reducing the risk of short circuits or performance degradation due to dust accumulation and extending service life. The forced airflow function of the second fan 222 can accelerate the airflow speed inside the enclosure, greatly improving heat dissipation efficiency. It is especially suitable for equipment with high heat generation, ensuring that the equipment can operate stably in high-temperature environments.

[0042] The fourth heat dissipation mesh 212 on the top of the first pull-out cabinet 21 utilizes the principle of hot air rising, allowing hot air inside the cabinet to be quickly exhausted through the fourth heat dissipation mesh 212, forming a continuous natural convection circulation. Simultaneously, the fifth heat dissipation mesh 223 works in conjunction with the second fan 222. The second fan 222 at the top of the cabinet acts as the first-stage exhaust fan, accelerating the exhaust of hot air inside the cabinet and creating a low-pressure zone inside, further drawing in cool air from the bottom. The first fan 32 at the top of the cabinet acts as the second-stage exhaust fan, drawing the exhausted hot air and heat from other areas of the control zone out of the cabinet, creating a pressure gradient that enhances localized cooling and overall airflow, increasing the overall air pressure in the control zone. This eliminates the need for high-power fans to meet cooling requirements, further optimizing the cooling effect and ensuring the performance and reliability of the equipment inside the cabinet. Furthermore, the first pull-out cabinet 21 and the second pull-out cabinet 22 employ a combination of "natural cooling + forced cooling" based on the differences in heat dissipation of the internal components, reducing energy consumption while ensuring cooling performance and effectively solving problems such as airflow obstruction, dust accumulation, and uneven heat dissipation in the control zone.

[0043] Furthermore, such as Figure 4 and Figure 7The second isolation bracket 201 has a hollow structure, and the space between the second isolation bracket 201 and the top of the control area 2 is divided into a first installation sub-area 25. The space between the third isolation bracket 203 and the second isolation bracket 201 is divided into a second installation sub-area 26. The control area 2 has a third installation sub-area 27 below the third isolation bracket 203, and the third installation sub-area 27 is equipped with electrical control components 28. In this way, the functions of each sub-area are clearly defined, so that maintenance personnel can quickly locate the area based on the fault symptoms, reduce maintenance costs, and solve the inefficiency problem of traditional decentralized layouts that require checking the entire cabinet.

[0044] Furthermore, such as Figures 4 to 6 The power zone 1 is vertically divided into an upper region, a middle region, and a lower region. Power components within the power zone 1 are arranged in a staggered vertical configuration. Specifically, in the upper region, a pre-charging unit component 11 is installed laterally, while an inverter-rectifier component 12 integrating an inverter unit and a rectifier unit is installed vertically in the middle region. This allows the inverter-rectifier component 12 to be staggered with the upper pre-charging unit component 11. Specifically, the two are arranged in a "cross-shaped" pattern to avoid complete vertical overlap of the upper and lower components, thus providing a flow channel for cold air. Cold air enters through the second bottom heat dissipation mesh 33 and flows upwards along the gaps between components, passing through the pre-charging unit, inverter-rectifier component, and other core heat-generating components. Hot air is discharged through the first top heat dissipation mesh 31. A filter 13 is vertically mounted on the front side of the lower region of the power area, and an input-side circuit breaker 14 and a surge protector 15 are mounted at intervals on the rear side of the lower region via a horizontal mounting plate 110, so that the filter 13, input-side circuit breaker 14, and surge protector 15 are distributed alternately. In this way, the pre-charge unit assembly 11, inverter rectifier assembly 12, input-side circuit breaker 14, and surge protector 15 are arranged alternately throughout the power area.

[0045] As described above, the power components in the power zone are arranged in a vertically staggered pattern, especially the pre-charge unit component 11 and the inverter rectifier component 12, which are arranged in a "cross-shaped" pattern. This avoids complete vertical overlap of the components and provides ample ventilation channels for the cool air. After entering through the second heat dissipation mesh 33 at the bottom, the cool air flows smoothly upwards along the gaps between the components, passing sequentially through the pre-charge unit, inverter rectifier component, and other core heat-generating components. After fully absorbing heat, the hot air is discharged through the first heat dissipation mesh 31 at the top. This orderly ventilation path ensures sufficient contact between the cool air and the heat-generating components, greatly improving heat dissipation efficiency, effectively reducing the temperature within the power zone, and preventing damage from overheating. Furthermore, the staggered arrangement allows the cool air to evenly cover each power component, preventing hot spots caused by poor heat dissipation in densely packed areas. Each component receives good heat dissipation, resulting in a more uniform temperature distribution, thereby improving the overall stability and reliability of the power zone and extending the service life of the equipment.

[0046] 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 via bolts.

[0047] like Figures 4 to 6 As shown, in one specific implementation, the power zone 1 has the 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.

[0048] The inverter rectifier assembly 12 is longitudinally mounted in the central region of the power zone 1 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, the cabinet frame 101 also has a vertical first reinforcing plate 1091 connected between a pair of adjacent second auxiliary mounting beams 106. The first reinforcing plate 1091 is symmetrical to the first... A first reinforcing support beam 1092 connects the 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 at 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.

[0049] 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 of the 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, can be 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 isolation bracket 109 not only supports the components but also provides space for the wiring of high-voltage cables and for heat dissipation.

[0050] 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.

[0051] like Figure 1 and Figure 2 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 handle to extend out of the plate for quick and safe on / off operation. Each first safety protection isolation plate 16 also has a handle 162 for easy opening by personnel. The first safety protection isolation plate 16 located at the bottom of the power area has a sixth heat dissipation mesh 163 at its bottom. Specifically, cold air first enters the cabinet through the bottom of the cabinet door, and then flows directionally into the lower part of the power area through the sixth heat dissipation mesh.

[0052] As described above, the first safety isolation panel physically separates the internal components from the external operating environment, forming a "hard protective 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 panel) while preventing direct contact with other components, reducing the risk of accidental contact. The design of multiple openable isolation panels allows for individual opening of the corresponding area's isolation panel 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 panel 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. Furthermore, the sixth heat dissipation mesh 163 provides an additional channel for cool air to enter the lower area of ​​the power zone, working in conjunction with the cabinet's original heat dissipation ducts to form a more complete air circulation system for the cabinet. Cool air enters through the sixth heat dissipation mesh 163 at the bottom, flows through the components in the lower part of the power zone, absorbs heat, rises, and is then discharged through heat dissipation holes at the top or other locations, effectively improving heat dissipation efficiency and ensuring that the power components operate in a suitable temperature environment. Furthermore, the sixth heat dissipation mesh 163 is located at the bottom of the first safety protection isolation plate 16, allowing it to directly guide cool air flow to these lower components for targeted heat dissipation, preventing heat accumulation in the lower area and ensuring stable performance of each component.

[0053] like Figure 1 and Figure 7 As shown, control area 2 has a third isolation bracket 203 located below the first pull-out cabinet 21 and the second pull-out cabinet 22. The third isolation bracket 203 is bolted to the UPS emergency power module 23. 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 the cooling fan inside the UPS emergency power module 23 to blow out heat. 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.

[0054] 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 the weak current signals in the control area and the 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.

[0055] 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.

[0056] In summary, this utility model discloses a flywheel converter cabinet with excellent heat dissipation. The cabinet is divided into a power area and a control area by a partition structure, which includes a partition frame and a partition plate installed on the partition frame. This integrates the power components in the power area and the control components in the control area into the same cabinet, improving space utilization. The cabinet has a top heat dissipation structure and a bottom heat dissipation structure, forming a heat dissipation airflow channel of "bottom air intake → airflow through components → top air exhaust". The power area exhausts air naturally through the first heat dissipation mesh at the top, while the control area is forced to exhaust air through the first fan at the top, improving heat dissipation efficiency. A third isolation bracket and a second isolation bracket are installed vertically in the control area. The vertical length of the third isolation bracket is shorter than that of the second isolation bracket to prevent the components below from blocking the heat dissipation path above. At least one pull-out cabinet is installed on the second isolation bracket. The pull-out cabinet has filter mesh at the bottom and heat dissipation mesh at the top, which facilitates maintenance while achieving precise heat dissipation, effectively solving the problems of insufficient heat dissipation and inconvenient maintenance of traditional cabinets.

[0057] 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. A flywheel converter cabinet with good heat dissipation, 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 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); the power area (1) is used to install power components that provide operating power for the flywheel converter, and the control area (2) is used to install control components that control the operation of the flywheel converter; the cabinet (100) is provided with a top heat dissipation structure for easy heat dissipation and air outlet, and the cabinet (100) is provided with a bottom heat dissipation structure for easy heat dissipation and air inlet; the control area (2) is provided with a third isolation bracket (203) and a second isolation bracket (201) in sequence from bottom to top, and the longitudinal extension length of the third isolation bracket (203) is shorter than that of the second isolation bracket (201).

2. The flywheel converter cabinet according to claim 1, characterized in that, The cabinet (100) includes: a cabinet frame (101), a sealing plate assembly installed outside the cabinet frame (101) by detachable bolts, and a cabinet door (103) hinged to the cabinet frame (101); 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 flywheel converter cabinet according to claim 2, characterized in that, The top heat dissipation structure includes: a first heat dissipation mesh (31) provided at the corresponding position on the top of the power area (1), and a first fan (32) provided at the corresponding position on the top of the control area (2); the bottom heat dissipation structure is a second heat dissipation mesh (33) opened at the bottom of the cabinet door (103), which is used to allow cold air to enter the power area (1) and / or the control area (2) from the outside of the cabinet (100) to form a bottom air intake channel.

4. The flywheel converter cabinet according to claim 1, characterized in that, At least one pull-out box is installed on the second isolation bracket (201). The pull-out box is used to install the control components and facilitates pull-out maintenance. The 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) integrates a DC power supply module. A UPS emergency power supply module (23) is installed on the third isolation bracket (203). The longitudinal length of the UPS emergency power supply module (23) is shorter than that of the first pull-out box (21) and the second pull-out box (22).

5. The flywheel converter cabinet according to claim 4, characterized in that, The first pull-out box (21) has a first filter mesh (211) at its bottom and a fourth heat dissipation mesh (212) at its top; the second pull-out box (22) has a second filter mesh (221) at its bottom, a second fan (222) for forced airflow and a fifth heat dissipation mesh (223) at its top.

6. The flywheel converter cabinet according to claim 4 or 5, characterized in that, The third isolation bracket (203) has a third heat dissipation mesh (2031) on both sides of the UPS emergency power module (23); the second isolation bracket (201) is a hollow structure, the space between the second isolation bracket (201) and the top of the control area (2) is divided into a first installation sub-area (25), and the space between the third isolation bracket (203) and the second isolation bracket (201) is divided into a second installation sub-area (26).

7. The flywheel converter 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 power components in the power zone (1) are arranged vertically in an alternating manner: a pre-charging unit component (11) is installed horizontally in the upper region, an inverter rectifier component (12) is installed vertically in the middle region through a first isolation bracket (109), a filter (13) is installed vertically on the front side of the lower region, and an input side circuit breaker (14) and a surge protector (15) are installed on the rear side of the lower region through a horizontal mounting plate (110); the bottom of the inverter rectifier component (12) is a hollow structure, which is supported by the hollow first isolation bracket (109).

8. The flywheel converter cabinet according to claim 1, characterized in that, The power zone (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) at the handle position of the input side circuit breaker (14), and each first safety protection isolation plate (16) has a handle (162); the first safety protection isolation plate (16) in the lowest area of ​​the power zone (1) has a sixth heat dissipation mesh (163) at its bottom.

9. The flywheel converter cabinet according to claim 5, characterized in that, 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. The control area (2) is provided with a third installation sub-area (27) below the third isolation bracket (203). The third installation sub-area (27) is equipped with an electrical control component (28).

10. The flywheel converter cabinet according to claim 2, characterized in that, The cabinet frame (101), sealing plate assembly, cabinet door (103) and pull-out box of the cabinet (100) are made of aluminum-zinc coated plate or aviation aluminum alloy and are connected by riveting process.

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