Epoxy resin insulation busbar and power distribution cabinet application thereof

Abstract

The utility model relates to the field of electrical low-voltage power distribution systems, in particular to an epoxy resin insulating busbar and application thereof to a power distribution cabinet, which comprises a busbar body made of metal materials with excellent conductivity and used for transmitting high current. And the epoxy resin layer wraps the outer surface of the busbar body and is integrated with the metal busbar body through a specific curing process so as to provide enhanced insulating property and mechanical protection. According to the invention, a traditional air insulation type main busbar is converted into an intensive main busbar after epoxy resin fluidization, the space utilization rate is significantly improved, the compact busbar design reduces the occupation of the space of the power distribution cabinet, and the space utilization is more efficient. Aiming at the problems of poor contact and heating caused by oxidation, the epoxy resin fluidization technology is remarkably improved and promoted.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical distribution systems, and in particular to an epoxy resin insulated busbar and its application in a distribution cabinet. Background Technology

[0002] In the power distribution field, traditional air-insulated main busbars are primarily fixed using two types of accessories: busbar frames and busbar clamps. Busbar frames provide a stable mounting platform, allowing the busbars to be installed vertically or horizontally, and protecting them from physical damage, especially in high-voltage or high-current environments. Busbar clamps are used to secure single or multiple busbars, ensuring they do not deform or break under high loads; they firmly hold the busbars in place using bolts or clamping mechanisms. Besides these two methods, there are various other techniques such as clamp fixing, clip fixing, and bracket fixing, including straight angle steel brackets and L-shaped angle steel brackets, which are suitable for horizontal installation of busbars on walls or columns, secured by pre-embedded or expansion bolts.

[0003] However, these traditional mounting methods have several problems. First, they often occupy valuable space within the distribution box, especially in dense electrical layouts, where space encroachment can lead to maintenance difficulties and heat dissipation issues. Second, traditional air-type main busbars are prone to oxidation in humid environments, causing poor contact and overheating, a problem particularly pronounced in humid southern regions. These issues not only affect the efficiency and reliability of the power system but may also threaten the lifespan and safety of the equipment. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that traditional air-type main busbars need to be fixed by means of busbar frames or busbar clamps, which will cause space encroachment and maintenance difficulties, and at the same time, they are prone to oxidation in humid environments.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes an epoxy resin insulating busbar, including a busbar body layer and a first epoxy resin layer disposed on the upper end face of the busbar body layer; and,

[0006] The second epoxy resin layer is disposed on the lower end face of the busbar body layer.

[0007] In a preferred embodiment of the epoxy resin insulating busbar of this utility model: the busbar body layer is composed of at least two pieces of metal conductive material stacked together to form a multi-layer structure.

[0008] In a preferred embodiment of the epoxy resin insulating bus of this utility model: the bus body layer is partially covered by a first epoxy resin layer and a second epoxy resin layer, and at least one uncovered contact point is retained. The first epoxy resin layer and the second epoxy resin layer are made of CYD-011 epoxy resin.

[0009] The above-mentioned technical problems are solved by the following technical solution: This utility model also proposes a power distribution cabinet, which includes,

[0010] The cabinet structure has space for accommodating electrical components;

[0011] Mounting components, located within the cabinet structure, are used to support and mount electrical components;

[0012] The epoxy resin insulated busbar is mounted on the mounting component for transmitting high current and providing insulation protection;

[0013] Electrical components are mounted on the mounting components and used in conjunction with the epoxy resin insulated busbars to achieve power distribution and control.

[0014] In a preferred embodiment of the power distribution cabinet of this utility model, the cabinet structure can be configured in various ways, including as a single cabinet or as multiple cabinets combined together.

[0015] In a preferred embodiment of the power distribution cabinet of this utility model: the mounting components are located at each corner of the cabinet structure to avoid obstructing electrical components.

[0016] In a preferred embodiment of the power distribution cabinet of this utility model: the mounting component is in the form of angle steel, U-shaped steel, or square steel, and its outer wall is covered with a plurality of mounting holes in a rectangular array.

[0017] In a preferred embodiment of the power distribution cabinet described in this utility model, power is distributed from one component to another or from the input side to the output side of a high-power module via an epoxy resin insulated busbar.

[0018] In a preferred embodiment of the power distribution cabinet of this utility model: the cabinet structure further includes an intelligent monitoring system for monitoring and controlling the operating status of the epoxy resin insulated busbar. The system includes a temperature sensor, a current sensor, and a voltage sensor, as well as a data acquisition module and a control unit connected to the sensors.

[0019] In a preferred embodiment of the power distribution cabinet of this utility model: the electrical components connected by the epoxy resin insulated busbar in the cabinet structure include circuit breakers, contactors, thermal relays, intermediate relays, buttons, indicator lights, universal changeover switches, limit switches, capacitors, current transformers, voltage transformers, disconnect switches, and fuses. All components are mounted on the mounting components and used in conjunction with the epoxy resin insulated busbar to realize power distribution and control.

[0020] The beneficial effects of this utility model are as follows: By transforming the traditional air-insulated main busbar into a compact main busbar fluidized with epoxy resin, significant performance improvements are achieved. First, contact reliability and electrical performance are enhanced, resistance loss is reduced, and wiring paths are optimized, thereby lowering the overall resistance. Second, the system's space utilization is significantly improved; the compact busbar design reduces the encroachment on the distribution cabinet space, making space utilization more efficient. Epoxy resin fluidization technology provides significant improvements and enhancements to address contact problems and overheating issues caused by oxidation. Simultaneously, safety and reliability are also improved; by adding redundant protection and improving insulation treatment, overheating and accidental electric shock accidents are prevented. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0022] Figure 1 A partial cross-sectional view of an epoxy resin insulated busbar is shown;

[0023] Figure 2 This diagram shows the installation of an epoxy resin insulated busbar on a busbar clamp or busbar frame.

[0024] Figure 3 The internal structure diagram of the power distribution cabinet is shown;

[0025] Figure 4 It shows Figure 3 An enlarged schematic diagram of the structure at point A in the middle, where the left side shows the traditional layout and the right side shows the layout of this application. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0028] Reference Figures 1-4 This paper proposes a new solution to the space occupation problem caused by the traditional mounting method of air-insulated main busbars. In traditional designs, the mounting and insulation of main busbars rely on busbar frames and busbar clamps. This method not only increases the number of accessories used, but also results in a large space occupation due to the physical size of these accessories. Although engineers have tried to improve the shape of busbar frames or busbar clamps to adapt to different environments and main busbar shapes, these improvements have not addressed the core problem, namely the root cause of space encroachment.

[0029] The root of the problem lies in the inability to reduce the distance between the two busbars. This is because, in traditional designs, busbars need to maintain a certain distance to ensure electrical insulation and prevent current leakage and mutual interference. This insulation requirement necessitates a safe distance between busbars, thus limiting the optimal use of space. In other words, due to the lack of effective insulation measures, the distance between the two busbars cannot be arbitrarily reduced, directly leading to a waste of space within the distribution cabinet.

[0030] This application achieves insulation between busbars by setting a first epoxy resin layer 102 and a second epoxy resin layer 103 as insulation layers on the outer wall of the busbar body layer 101, thereby allowing for a reduction in the distance between busbars and between busbars and other equipment. This design not only reduces space encroachment but also allows for the design of smaller and more suitable busbar frames and busbar clamps, improving space utilization efficiency. More importantly, this solution allows multiple busbars to be stacked together to form a stacked busbar. This structure features repeatable electrical performance, low inductance, low impedance, interference immunity, high reliability, space saving, and simple and quick assembly, making it particularly suitable for modular distribution cabinets.

[0031] Reference Figure 1This embodiment provides an epoxy resin insulated busbar, including a busbar body layer 101, which is made of a metal material with excellent conductivity for transmitting high current; it also includes a first epoxy resin layer 102 disposed on the upper end face of the busbar body layer 101; and a second epoxy resin layer 103 disposed on the lower end face of the busbar body layer 101. The first epoxy resin layer 102 and the second epoxy resin layer 103 are wrapped around the outer surface of the busbar body layer 101 and are integrally formed with the metal busbar body layer 101 through a specific curing process to provide enhanced insulation performance and mechanical protection.

[0032] Furthermore, the bus body layer 101 can be constructed from at least two stacked metal materials to form a multi-layer structure. The structure involves stacking two or more bus body layers 101 together to form a large bus body layer 101. The layers of the two bus body layers 101 are electrically isolated from each other using insulating material, and the conductive and insulating layers are pressed together as a single unit through relevant processes. Its advantages include a flat cross-section for the connecting wires, increasing the surface area of ​​the conductive parts for the same current cross-section, and significantly reducing the spacing between the conductive layers. Due to the proximity effect, adjacent conductive layers carry opposite currents, and their magnetic fields cancel each other out, thus significantly reducing the distributed inductance in the circuit. Additionally, its flat shape significantly increases its heat dissipation area, which is beneficial for improving its current carrying capacity. Compared to traditional, bulky, time-consuming, and cumbersome wiring methods, multi-layer busbars can provide a modern, easy-to-design, quick-to-install, and structurally clear power distribution system. It features repeatable electrical performance, low inductance, low impedance, anti-interference, high reliability, space saving, and simple and quick assembly.

[0033] Reference Figures 2-4 A power distribution cabinet includes an epoxy resin insulated busbar 100 and a cabinet structure 200 having space for accommodating electrical components 300; a mounting component 400 disposed within the cabinet structure 200 for supporting and mounting the electrical components 300; the epoxy resin insulated busbar 100 is mounted on the mounting component 400 for transmitting high current and providing insulation protection; the electrical components 300 are mounted on the mounting component 400 and used in conjunction with the epoxy resin insulated busbar 100 to achieve power distribution and control.

[0034] In traditional power distribution cabinet design, such as Figure 3 and Figure 4 As shown in the left figure, busbars are typically fixed using busbar frames and busbar clamps. This installation method, to ensure electrical insulation and safety, results in significant spacing between busbars. These larger spacings necessitate the use of bulkier busbar frames or clamps, further encroaching on the internal space of the distribution cabinet. Figure 3As shown, the top space of the distribution cabinet is almost completely occupied, resulting in a significant waste of space. In contrast, the design proposed in this application adds an epoxy resin insulation layer composed of a first epoxy resin layer 102 and a second epoxy resin layer 103 to the outside of the bus body layer 101, such as... Figure 4 As shown in the right-hand figure, this improvement significantly reduces the distance between adjacent busbars and can be achieved using only a smaller busbar frame or busbar clamp, greatly reducing the encroachment on surrounding space. (Comparison) Figure 4 Comparing the traditional design with the design of this application, it is clear that the design of this application is more efficient in space utilization, reduces space waste, and improves the space utilization rate of the distribution cabinet.

[0035] Reference Figures 1-4 In one embodiment provided in this application, the first epoxy resin layer 102 and the second epoxy resin layer 103 are formed by heating the bus body layer 101, immersing it in a container containing epoxy resin material, so that the surface of the bus body layer 101 is uniformly coated with epoxy resin, and then curing and leveling it. The bus body layer 101 is partially covered by the first epoxy resin layer 102 and the second epoxy resin layer 103, and at least one uncovered contact point is reserved for electrical connection.

[0036] The first epoxy resin layer 102 and the second epoxy resin layer 103 are made of CYD-011 epoxy resin, a bisphenol A type medium molecular weight epoxy resin. The cured adhesive layer exhibits excellent physical and mechanical properties and toughness, as well as good anti-aging and resistance to various media (acids, alkalis, and water). These characteristics make it suitable for use in insulating materials, especially in applications requiring long-term resistance to environmental influences. The first epoxy resin layer 102 and the second epoxy resin layer 103 maintain good adhesive strength and flexibility even in long-term environments at 150°C. Furthermore, the preparation process of the first epoxy resin layer 102 and the second epoxy resin layer 103 is simple and rapid, suitable for large-scale production, and offers advantages such as low cost and broad market prospects. The design of this epoxy resin insulating busbar 100 also considers the bonding strength and aging resistance at high temperatures. Especially under long-term high-temperature environments, traditional insulating materials become brittle due to thermo-oxidative aging, and the bonding strength between the adhesive layer and the metal busbar rapidly decreases. In addition, considering the different possible situations, different epoxy resins are selected for the first epoxy resin layer 102 and the second epoxy resin layer 103 as needed for targeted fabrication.

[0037] Preparation of the epoxy resin insulation layer: First, the bus body layer 101 needs to be thoroughly cleaned and pretreated to remove surface oil, dust, and other impurities, ensuring strong adhesion of the epoxy resin. Then, the body is heated to 80-100℃ to promote the flowability and dipping effect of the epoxy resin. Subsequently, the heated bus body layer 101 is immersed in an epoxy resin container, uniformly coating it with a layer of resin. The curing stage is carried out under controlled temperature and environment, causing the epoxy resin to chemically cross-link and form a robust solid layer. Finally, the cured first epoxy resin layer 102 and second epoxy resin layer 103 may require post-treatment steps such as sanding and cleaning to achieve a smooth, defect-free surface that meets specific application standards.

[0038] Epoxy resin fluidization technology offers significant improvements and enhancements to address contact problems and overheating caused by oxidation. The excellent insulating properties of epoxy resin effectively prevent leakage and short circuits, while its chemical and solvent resistance reduces the increase in contact resistance caused by oxidation. Furthermore, the first epoxy resin layer 102 and the second epoxy resin layer 103 provide additional protection, preventing contact erosion on the busbar surface due to oxidation and dirt, thereby reducing the increase in contact surface resistance and the acceleration of temperature rise. This improvement not only enhances contact reliability but also reduces the risk of overheating caused by poor contact.

[0039] Reference Figures 1-4 In some implementations, the cabinet structure 200 can be configured in various ways, including as a single cabinet or as multiple cabinets combined. A single-cabinet distribution cabinet refers to an independent cabinet structure 200 that contains all necessary components and functions for power distribution and control. This type of distribution cabinet is suitable for applications with limited space or low power demand. A single-cabinet distribution cabinet typically includes busbars, electrical components 300 (such as circuit breakers, contactors, etc.), mounting components 400, and other necessary auxiliary equipment. A multiple-cabinet distribution cabinet refers to a power distribution system composed of two or more independent cabinet structures 200. This type of distribution cabinet is suitable for large industrial sites, data centers, or applications requiring higher power capacity. The modular configuration can be expanded as needed, adding more cabinet structures 200 to meet increasing power demands. Modular distribution cabinets offer greater flexibility and scalability. For example, additional cabinet structures 200 can be added as needed to add more circuits, install more electrical components 300, or provide more maintenance space. In summary, the 200 cabinet design offers a variety of configuration options to suit different user needs. Single-cabinet configurations are suitable for simple or space-constrained applications, while modular configurations provide greater flexibility and scalability, suitable for complex or large-scale power management requirements.

[0040] In some embodiments, the mounting components 400 are located at various corners within the cabinet structure 200 to avoid obstructing the electrical components 300. The mounting components 400 are in the form of angle steel, U-shaped steel, square steel, etc., and their outer walls are covered with a rectangular array of mounting holes.

[0041] It should be noted that the mounting components 400 are located at various corners of the distribution cabinet. This layout helps to maximize the use of the cabinet structure 200 space while avoiding obstruction of internal electrical components 300. Corner locations are generally not the main circuit paths, thus reducing interference with the main circuit layout.

[0042] The shape of the mounting component 400: The mounting component 400 can be in the form of angle steel, U-shaped steel or square steel, etc. These are common metal profiles with good mechanical strength and load-bearing capacity, and are suitable as a support structure.

[0043] Angle steel: a long strip of steel with an L-shaped cross-section, commonly used in construction and structural support.

[0044] U-shaped steel: With a U-shaped cross section, it has high bending resistance and is suitable as a support for heavy equipment.

[0045] Square steel: With a square cross-section, it provides uniform support force and is suitable for occasions where a uniform load distribution is required.

[0046] The vertical arrangement of the mounting components 400 means that the mounting components 400 are arranged along the vertical direction of the distribution cabinet, which can effectively utilize the space of the cabinet structure 200 and provide a stable mounting platform for the electrical components 300. The vertical arrangement of the mounting components 400 can also reduce obstruction to the electrical components 300, making it easier to install and maintain the electrical components 300.

[0047] Layout of mounting holes: The outer wall of the mounting component 400 is covered with a rectangular array of mounting holes, which are used to fix electrical components 300, such as circuit breakers, contactors, relays, etc.

[0048] The rectangular array means that the mounting holes are evenly arranged at a certain spacing to form a grid, which provides flexible installation options to accommodate electrical components 300 of different sizes and specifications. The design of the mounting holes makes the mounting component 400 highly adaptable and versatile, allowing for quick installation and adjustment of the position of electrical components 300 to meet different circuit design and maintenance needs.

[0049] The main function of mounting component 400 is to provide a stable support and mounting platform for electrical component 300, ensuring the stability and safety of the component during operation. By mounting electrical component 300 on mounting component 400, circuit connection and wiring can be easily performed, and daily inspection and maintenance are also facilitated.

[0050] Reference Figures 1-4 In some embodiments, power is distributed from one component to another or from the input side to the output side of a high-power module via an epoxy-insulated bus 100. The epoxy-insulated bus 100 is a power distribution component that insulates and protects the metal bus body layer 101 through a first epoxy resin layer 102 and a second epoxy resin layer 103. This design improves the insulation performance of the bus, reduces the risk of electrical breakdown, and provides additional mechanical protection, making it safer and more reliable in high-voltage and high-current applications. The primary function of the epoxy-insulated bus 100 is to distribute power from the input side to the output side of a high-power module. It can connect multiple electrical components 300 in a distribution cabinet, ensuring efficient power transmission and distribution.

[0051] Specifically, in the distribution cabinet, the electrical components 300 connected via the busbar mainly include the following types:

[0052] Circuit breaker: Used to protect circuits, it automatically disconnects the circuit when the current exceeds a set value to protect circuit safety. The symbol for a circuit breaker is QF, and it is an important protective component in a distribution cabinet.

[0053] Contactor: Composed of an electromagnetic mechanism and a contact system, used for remote control and frequent starting of motors and other equipment. The letter symbol for a contactor is KM.

[0054] Thermal relays: These operate by utilizing the heat generated when current flows through a component, and are primarily used for overload protection. The symbol for a thermal relay is FR.

[0055] Intermediate relays are used to convert one input signal into multiple output signals or to amplify a signal to expand the contact capacity. The symbol for an intermediate relay is KA.

[0056] Buttons: Used for manual operation of basic functions such as starting and stopping the control circuit.

[0057] Indicator lights: Used to display the status of the circuit, such as start, stop, fault, etc.

[0058] Universal changeover switch: used in applications requiring multiple circuit controls and selections.

[0059] Limit switches: used to control the travel or position of mechanical equipment.

[0060] Capacitors: Used in distribution cabinets for power compensation and to improve power quality.

[0061] Current transformers and voltage transformers: used to measure and transform current and voltage for protection, metering and control.

[0062] Disconnecting switches: Used to provide a clear disconnect point in a circuit to ensure safe operation.

[0063] Fuse: As an overcurrent protection element, it cuts off the circuit by melting when the current exceeds its rated value.

[0064] These components are connected via epoxy-insulated busbars 100, enabling power distribution, control, and protection. Each component has a specific function and role, and they work together to ensure the normal operation of the distribution cabinet and the stability of the power system. In this way, the distribution cabinet can safely and effectively manage and distribute power to meet the needs of various industrial and commercial applications.

[0065] Reference Figures 1-4 As an optional embodiment, the distribution cabinet also includes an intelligent monitoring system for monitoring and controlling the operating status of the epoxy resin insulated busbar 100. This system includes, but is not limited to, temperature sensors, current sensors, and voltage sensors, as well as data acquisition modules and control units connected to the sensors.

[0066] Composition of intelligent monitoring system

[0067] sensor:

[0068] Temperature sensor: TDK brand analog temperature sensors can be used, such as the LM35 temperature sensor probe, which has three pins, VCC, GND and VOUT, and can directly output a voltage corresponding to the Celsius temperature value.

[0069] Current sensor: Precision current sensors from TDK are suitable for electric vehicles and smart grids.

[0070] Voltage sensor: You can also choose TDK brand products for measuring and transforming voltage.

[0071] Data acquisition module:

[0072] The EM300 series acquisition unit is compact and flexible in installation. It can be connected via an RS485 communication interface to form a complete automated monitoring system.

[0073] MCU data acquisition module: It features a modular design, low power consumption, built-in high-density polymer lithium battery, and adopts a fully isolated acquisition method with strong anti-interference capability.

[0074] Control unit:

[0075] The ASM-5000G intelligent integrated monitoring system complies with the IEC61850 communication protocol and can perform information aggregation, classification, retrieval, and remote monitoring, realizing the application of the power Internet of Things in the power system.

[0076] Workflow

[0077] Data acquisition: Temperature sensors, current sensors, and voltage sensors monitor the bus's operating status in real time and convert analog signals into digital signals.

[0078] Signal transmission: The acquired data is preprocessed by the data acquisition module and then transmitted to the control unit via RS485 or wireless communication.

[0079] Data processing and control: After receiving the data, the control unit performs further analysis and processing, and makes judgments based on preset thresholds and logic to achieve automated control.

[0080] Remote monitoring and alarm: The control unit can upload data to the remote monitoring platform via wired or wireless means, enabling real-time remote information uploading and monitoring. The system will automatically trigger an alarm mechanism when an anomaly is detected.

[0081] Corresponding effect

[0082] Enhanced safety: By monitoring the busbar's operating status in real time, abnormal conditions such as overheating and overload can be detected in a timely manner, preventing power accidents.

[0083] Reduced labor costs: Automated monitoring reduces the need for manual inspections, thus lowering labor costs.

[0084] Improved efficiency: Intelligent monitoring systems can respond quickly to abnormal situations, improving the efficiency of handling power failures.

[0085] Data recording and analysis: The system can record historical data to provide data support for subsequent maintenance and optimization.

[0086] With the application of the above-mentioned intelligent monitoring system, the operation of the epoxy resin insulated busbar 100 in the distribution cabinet is safer, more reliable and more efficient.

[0087] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. An epoxy resin insulating busbar (100), comprising a busbar body layer (101), characterized in that: It also includes, A first epoxy resin layer (102) is disposed on the upper end face of the busbar body layer (101); and, The second epoxy resin layer (103) is disposed on the lower end face of the busbar body layer (101).

2. The epoxy resin insulating busbar (100) according to claim 1, characterized in that: The busbar body layer (101) is composed of at least two pieces of conductive metal material stacked together to form a multi-layer structure.

3. The epoxy resin insulating busbar (100) according to claim 1, characterized in that: The busbar body layer (101) is partially covered by a first epoxy resin layer (102) and a second epoxy resin layer (103), and at least one uncovered contact point is retained. The first epoxy resin layer (102) and the second epoxy resin layer (103) are made of CYD-011 epoxy resin.

4. A distribution cabinet, comprising an epoxy resin insulated busbar (100) as described in any one of claims 1 to 3, characterized in that: include, The cabinet structure (200) has space for accommodating electrical components (300); Mounting components (400) are disposed within the cabinet structure (200) for supporting and mounting electrical components (300). The epoxy resin insulated bus (100) is mounted on the mounting component (400) for transmitting high current and providing insulation protection; Electrical components (300) are mounted on the mounting component (400) and used in conjunction with the epoxy resin insulated busbar (100) to achieve power distribution and control.

5. The power distribution cabinet according to claim 4, characterized in that: The cabinet structure (200) can be configured in various ways, including as a single cabinet.

6. The power distribution cabinet according to claim 4, characterized in that: The mounting components (400) are located at various corners within the cabinet structure (200) to avoid obstructing the electrical components (300).

7. The power distribution cabinet according to claim 4 or 6, characterized in that: The mounting component (400) is in the form of angle steel, U-shaped steel, or square steel, and its outer wall is covered with a number of mounting holes in a rectangular array.

8. The power distribution cabinet according to claim 4, characterized in that: Power is distributed from one component to another or from the input side to the output side of a high-power module via an epoxy-insulated bus (100).

9. The power distribution cabinet according to claim 4, characterized in that: The cabinet structure (200) also includes an intelligent monitoring system for monitoring and controlling the operating status of the epoxy resin insulated busbar (100). The system includes a temperature sensor, a current sensor, and a voltage sensor, as well as a data acquisition module and a control unit connected to the sensors.

10. The power distribution cabinet according to claim 4 or 8, characterized in that: In the cabinet structure (200), the electrical components (300) connected through the epoxy resin insulated busbar (100) include circuit breakers, contactors, thermal relays, intermediate relays, buttons, indicator lights, universal changeover switches, limit switches, capacitors, current transformers, voltage transformers, disconnect switches, and fuses. All of these components are mounted on the mounting component (400) and used in conjunction with the epoxy resin insulated busbar (100) to achieve power distribution and control.

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