Power cabinet

Abstract

The invention discloses a power cabinet which comprises a cabinet body and a cabinet door, a space is formed in the cabinet body and used for installing a plurality of devices, the cabinet door is rotatably installed on the cabinet body, a touch screen electrically connected with the devices loaded in the cabinet body is arranged on the cabinet door, and the touch screen is movably installed on the cabinet door through a protective structure capable of being opened and closed; when the protection structure is in an open state, the touch screen is completely unfolded and exposed on the cabinet door for display control; and when the protection structure is in a closed state, the touch screen is hidden in the protection structure. For a power cabinet with a high-end touch screen in iterative design, a protection structure is installed on a cabinet door in a manner of being matched with the touch screen, the touch screen is hidden in the protection structure in a normal state, the situation that the high-value screen is exposed in a severe environment to be dirty, scratched and even damaged can be avoided, a user can open the protection structure to enable the internal touch screen to be completely unfolded during routing inspection and maintenance, and the maintenance efficiency is improved. And normal data acquisition and intelligent control are not influenced.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and specifically to a power cabinet. Background Technology

[0002] Power equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc., while power supply equipment mainly includes transmission lines of various voltage levels, instrument transformers, contactors, etc. For a long time, my country's power system has implemented a scheduled maintenance system for power equipment, that is, testing and maintaining equipment according to planned time cycles. This has led to the drawbacks of over-maintenance and under-maintenance. With the evolving forms of power equipment defects, online monitoring of partial discharge, chromatography, and SF6 gas quality is increasing. The State Grid Corporation of China has clearly stated that starting in 2010, it will comprehensively promote and implement condition-based maintenance of equipment, comprehensively improve the level of equipment intelligence, promote the application of intelligent equipment and technologies, and realize online early warning and intelligent monitoring of power grid safety. Power equipment includes power distribution cabinets.

[0003] A power control cabinet is an electrical control unit that provides power to the normal operation of a machine. It includes contactors, frequency converters, high-voltage cabinets, transformers, etc. Power control cabinets can be divided into outdoor and indoor types, and in terms of installation, they can be divided into suspended and floor-standing types. In terms of size, they can be divided into power cabinets and power boxes.

[0004] With the development of information and display technologies, touch screens have begun to be installed on some high-end power cabinets in some evolved designs, along with customized software for multi-dimensional data display and intelligent control. However, due to the complex application scenarios of power equipment, which is often placed in harsh environments, the touch screens installed on high-end power cabinets are directly exposed, making them prone to dirt, scratches, and even damage, affecting data collection during inspections and even the intelligent control of related equipment. Summary of the Invention

[0005] The purpose of this invention is to at least partially solve one of the technical problems in related technologies. In view of this, a power cabinet is provided, including a cabinet body with an internal space for installing a plurality of devices, and a cabinet door rotatably mounted on the cabinet body. The cabinet door is provided with a touch screen electrically connected to the devices loaded inside the cabinet body. The touch screen is movably mounted on the cabinet door through an openable and closable protective structure. When the protective structure is in the open state, the touch screen is fully extended and exposed on the cabinet door for display and operation. When the protective structure is in the closed state, the touch screen is hidden inside the protective structure.

[0006] Compared with the prior art, the technical solution of the present invention has the following advantages: For power cabinets with high-end touch screens in iterative designs, by installing a protective structure on the cabinet door to adapt the touch screen, the touch screen is normally hidden inside the protective structure, which can prevent the high-value screen from being exposed to the harsh environment and getting dirty, scratched or even damaged. During inspection and maintenance, the user can open the protective structure to fully unfold the internal touch screen without affecting normal data acquisition and intelligent control.

[0007] According to one example of the present invention, the protective structure is a sealed box, the sealed box including a box body mounted on a cabinet door, and a box cover movably mounted on the box body for sealing the box body, the touch screen being installed inside the box body.

[0008] According to one example of the present invention, the lid is hinged to the lower end of the box body, the touch screen is a flexible OLED screen, the upper end of the touch screen is installed on the inner wall of the box body, and the lower end of the touch screen is installed on the inner wall of the lid. When the lid is closed on the box body, the touch screen is hidden between the box body and the lid in a U-shaped fold.

[0009] According to one embodiment of the present invention, the lid is detachably fixed to the box body, and the touch screen is a flexible OLED screen; the power cabinet further includes a support assembly, which includes a first support piece, a second support piece, a third support piece, and a fourth support piece hinged sequentially; the first support piece is fixed to the inner wall of the box body, the fourth support piece is fixed to the lid, the upper half of the touch screen is mounted on the second support piece, and the lower half of the touch screen is mounted on the third support piece; when the lid is closed and sealed on the box body, the support assembly is folded in a W-shape and retracted between the box body and the lid, the touch screen is folded in a U-shape and hidden inside the support assembly, and the upper half of the touch screen is held between the first and second support pieces, and the lower half of the touch screen is held between the third and fourth support pieces.

[0010] According to one example of the present invention, the box body is provided with a plurality of magnetic contacts, the edge of the box cover is provided with a plurality of metal sheets that match the magnetic contacts and can be magnetically attracted, and the box cover is also provided with a ring of waterproof adhesive strip located next to the metal sheets.

[0011] According to one example of the present invention, the first support plate and the fourth support plate are respectively provided with grooves, and a polyurethane foam block for buffering the touch screen is fixed in the groove.

[0012] According to one embodiment of the present invention, the housing is provided with a rotating shaft, on which a folding fan-shaped platform is mounted. The folding fan-shaped platform includes a plurality of display fan blades sequentially mounted on the rotating shaft. The touch screen includes a plurality of independent sub-screens mounted one-to-one on the display fan blades. The outermost display fan blades are flexibly connected to the housing cover directly or indirectly through connectors, and the innermost display fan blades are directly or indirectly connected to the housing body. Adjacent display fan blades are movably connected, so that when the housing cover is fully opened, each display fan blade is sequentially pulled open to reveal each sub-screen.

[0013] According to one example of the present invention, the box body is an elongated cuboid shape, the box body is placed horizontally on the cabinet door and has an opening at the top, and the box cover is hinged to the left side of the opening of the box body; the imitation folding fan platform also includes an outer protective fan blade flexibly connected to the box cover and an inner protective fan blade connected to the box body, both the outer and inner protective fan blades are rotatably sleeved on a rotating shaft, and the outermost display fan blade is movably connected to the outer protective fan blade, and the innermost display fan blade is movably connected to the inner protective fan blade.

[0014] According to an example of the present invention, the housing is provided with a wire hole that passes through the housing and cabinet door in sequence and communicates with the space inside the cabinet. The display fan blade is provided with a screen groove for installing a sub-screen, a wiring groove communicating with the screen groove, and a wiring hole that passes through one end of the display fan blade and communicates with the wiring groove, and the other end extends out from the side of the display fan blade. The wires of the sub-screen pass through the wiring groove, the wiring hole, and the wire hole in sequence and are electrically connected to the equipment inside the cabinet.

[0015] According to one example of the invention, the lid is provided with a grip for easy hand holding to open the lid.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 These are front and side views of the power cabinet structure in the prior art of this invention.

[0019] Figure 2 This is a schematic diagram of the unfolded state of the first design touchscreen in Embodiment 2 of the present invention.

[0020] Figure 3 This is a schematic diagram of the unfolded state of the touch screen in the second design of Embodiment 2 of the present invention.

[0021] Figure 4 yes Figure 3 Enlarged views of parts A and B.

[0022] Figure 5 This is a diagram of the cabinet door and protective structure in the closed state of Embodiment 3 of the present invention.

[0023] Figure 6 This is a structural diagram of the cabinet door and related components in the open state of Embodiment 3 of the present invention.

[0024] Figure 7 This is an internal structural diagram of the cabinet door and protective structure in Embodiment 3 of the present invention.

[0025] Figure 8 This is a structural diagram of the imitation folding fan platform and sub-screen in Embodiment 3 of the present invention.

[0026] The attached figures are labeled as follows:

[0027] 1. Cabinet body, 2. Cabinet door, 3. Opening, 4. Touch screen, 5. Box body, 6. Box cover, 7. First support piece, 8. Second support piece, 9. Third support piece, 10. Fourth support piece, 11. Magnetic contact, 12. Metal sheet, 13. Waterproof strip, 14. Polyurethane foam block, 15. Handle, 16. Shaft, 17. Display fan blade, 18. Sub-screen, 19. Outer protective fan blade, 20. Inner protective fan blade, 21. Wiring hole, 22. Screen groove, 23. Wiring groove, 24. Wiring hole. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] Example 1

[0030] Please see Figure 1 As shown, this invention illustrates the existing design of a conventional power cabinet, which generally has a cabinet body 1 and a cabinet door 2. A touch screen is installed at an opening 3 on the cabinet door 2. The touch screen is directly exposed to the environment and is at risk of getting dirty and damaged. This invention provides a power cabinet with a protective design for the high-value touch screen mounted on the cabinet door of existing power cabinets, such as... Figure 2As shown, the device includes a cabinet 1 with internal space for installing several devices, and a cabinet door 2 that is rotatably mounted on the cabinet 1. The cabinet door 2 is equipped with a touch screen 4 that is electrically connected to the devices loaded inside the cabinet 1. The touch screen 4 is movably mounted on the cabinet door 2 through a protective structure that can be opened and closed. When the protective structure is open, the touch screen 4 is fully extended and exposed on the cabinet door 2 for display and operation. When the protective structure is closed, the touch screen 4 is hidden inside the protective structure.

[0031] Under normal circumstances, the aforementioned touchscreen 4 is concealed within the protective structure, preventing this high-value screen from being exposed to harsh environments, becoming dirty, scratched, or even damaged. During inspection and maintenance, users can open the protective structure to fully unfold the internal touchscreen 4 without affecting normal data acquisition and intelligent control of related equipment in the power cabinet.

[0032] In the power sector, power cabinets primarily serve as containers for electrical equipment. Taking high-voltage power cabinets as an example, they are crucial equipment in power systems, mainly used for controlling, protecting, and monitoring the operation of high-voltage electrical equipment. The cabinet typically integrates high-voltage equipment, control equipment, protection equipment, and power meters. In this embodiment, the power cabinet's interior houses circuit breakers, load switches, current transformers, and voltage transformers. The circuit breakers can be vacuum circuit breakers or SF6 circuit breakers; when a circuit fault or overload occurs within the cabinet, the circuit breaker can quickly disconnect the power to ensure safe equipment operation. The load switch mainly consists of a switch body, drive mechanism, control limit structure, and sensors. It is primarily used to control the current magnitude and achieve branch control, quickly connecting or disconnecting the circuit. The current transformer is mainly used to measure the current in the circuit and convert the current signal into a proportionally low voltage signal for use by electrical protection and measuring instruments. The voltage transformer is mainly used to measure the voltage in the circuit and convert the measured voltage signal into a standardized low voltage signal for use by protection and measuring instruments. The equipment in the power cabinet serves different functions, and their coordinated operation enables efficient protection and control of high-voltage circuits. Circuit breakers, current transformers, voltage transformers, and other equipment can promptly detect abnormalities in the circuit and quickly disconnect faults, ensuring the safe operation of high-voltage circuits and related equipment. Energy meters and other devices in the high-voltage power cabinet accurately measure the circuit's energy consumption, providing power supply units with accurate electricity billing and energy management services. Relevant data can be collected, categorized, and displayed via the touchscreen.

[0033] Example 2

[0034] Based on the aforementioned Embodiment 1, a specific example of the protective structure is provided, such as... Figures 2-4 As shown, in this embodiment, the protective structure is a sealed box, which includes a box body 5 installed on the cabinet door and a box cover 6 movably installed on the box body 5 for sealing the box body 5. The touch screen 4 is installed inside the box body 5.

[0035] With the development of display technology, some high-performance flexible, thin, and foldable touchscreens have emerged. These screens occupy little space when folded and have a large display area when unfolded, offering excellent display quality, sensitive touch response, and continuously decreasing costs. In foreseeable iterative designs, flexible touchscreens can also be used in power equipment depending on the application scenario. According to one example of the present invention, to balance the protection of the high-value touchscreen with a larger display area, a cover 6 is designed to be hinged to the lower end of the housing 5. The touchscreen 4 is a flexible OLED screen, with its upper end mounted on the inner wall of the housing 5 and its lower end mounted on the inner wall of the cover 6. When the cover 6 is closed on the housing 5, the touchscreen 4 is hidden in a U-shaped fold between the housing 5 and the cover 6. When the cover 6 is opened from the housing 5, as the cover 6 flips downwards, the vertically folded touchscreen 4 unfolds, and both the housing 5 and the cover 6 become the display area for the touchscreen 4. This area can be used to display more power equipment data and better showcase data graphs.

[0036] Based on the folding and hiding mechanism of the foldable screen, this embodiment also provides another protective design for the touch screen 4. The cover 6 is detachably fixed to the box body 5, and the touch screen 4 is a flexible OLED screen. The power cabinet also includes a support assembly, which includes a first support piece 7, a second support piece 8, a third support piece 9, and a fourth support piece 10 that are hinged in sequence. The first support piece 7 is fixed to the inner wall of the box body 5, and the fourth support piece 10 is fixed to the cover 6. The upper half of the touch screen 4 is mounted on the second support piece 8, and the lower half of the touch screen 4 is mounted on the third support piece 9. When the cover 6 is closed and sealed on the box body 5, the support assembly is folded in a W-shape and retracted between the box body 5 and the cover 6. The touch screen 4 is folded in a U-shape and hidden inside the support assembly. The upper half of the touch screen 4 is held between the first support piece 7 and the second support piece 8, and the lower half of the touch screen 4 is held between the third support piece 9 and the fourth support piece 10.

[0037] Regarding the aforementioned detachable fixing method of the lid 6 to the box body 5, one design example is as follows: The box body 5 can be provided with several magnetic contacts 11, and the edge of the lid 6 can be provided with several metal pieces 12 that match the magnetic contacts 11 and are magnetically attracted. The lid 6 can be quickly installed and removed using magnetic attraction, which is convenient and simplifies the structure. The lid 6 also has a waterproof strip 13 located inside the metal pieces 12 to improve the sealing performance at the connection between the lid 6 and the box body 5. It is easy to see that there are many other detachable installation structures for the lid 6, such as snap-fit ​​fixing, fastener connection, etc., which will not be elaborated further.

[0038] As an optimization, to further improve the protective performance of the touch screen 4, grooves are provided on the first support piece 7 and the fourth support piece 10 respectively. A polyurethane foam block 14 for cushioning the touch screen is fixed in the groove. The polyurethane foam has the characteristics of being lightweight and highly elastic, which can provide a thin and soft seal and cushioning protection for the touch screen.

[0039] Preferably, the lid 6 is provided with a gripper 15 for easy hand gripping to open the lid 6, which can improve the user's operating convenience and efficiently open and close the lid 6.

[0040] Example 3

[0041] This embodiment provides another hidden layout scheme for the touchscreen 4, such as... Figures 5-8 As shown, the housing 5 has a rotating shaft 16 inside, and a folding fan-shaped platform is installed on the rotating shaft 16. The folding fan-shaped platform includes several display fan blades 17 that are sequentially sleeved on the rotating shaft 16. The touch screen 4 includes several independent sub-screens 18 that are installed one-to-one on the display fan blades 17. The outermost display fan blades 17 are flexibly connected to the housing cover 6 directly or indirectly through a connector (the rotation points of the display fan blades 17 and the housing cover 6 are different. In this embodiment, the housing cover 6 can be designed to be flexibly connected to the display fan blades 17 through a pull rope. When the housing cover 6 is rotated, the display fan blades 17 are pulled to rotate synchronously). The innermost display fan blades 17 are directly or indirectly connected to the housing 5 through a connector. Two adjacent display fan blades 17 are movably connected, so that when the housing cover 6 is fully opened, each display fan blade 17 is pulled open in sequence to reveal each sub-screen 18. As shown in the figure, the folding fan-shaped platform, serving as the mounting, support, and protection component for the sub-screen 18, differs from the aforementioned embodiment 2. Instead, it decomposes the large touchscreen into multiple smaller, separate touchscreens, each capable of displaying different key information. Based on the folding fan design, each display blade 17 has a consistent shape. In the fully retracted state, the entire folding fan-shaped platform, along with the touchscreens, is stacked and stored within the housing 5, occupying minimal space. Each sub-screen is shielded and protected, making it less prone to damage. Furthermore, in the fully extended state, the multiple display blades 17 unfold sequentially, visually resembling the display area of ​​a large screen. Adjacent display blades 17 can be connected by elastic threads or slidably connected using matching limiting grooves and protrusions to restrict the opening degree of adjacent display blades 17.

[0042] As a supplementary design to the aforementioned folding fan-shaped platform, the box 5 is a slender rectangular prism. The box 5 is placed horizontally on the cabinet door 2 with an opening at the top. The box cover 6 is hinged to the left side of the opening of the box 5. This layout of the box 5 is more conducive to showcasing the display effect of each display blade 17 when the fan is unfolded. The folding fan-shaped platform also includes an outer protective blade 19 connected to the box cover 6 and an inner protective blade 20 connected to the box 55. Both the outer protective blade 19 and the inner protective blade 20 are rotatably mounted on the pivot 16. The outermost display blade 17 is movably connected to the outer protective blade 19, and the innermost display blade 17 is movably connected to the inner protective blade 20, which can provide better protection for the sub-screen 18.

[0043] Based on the folding fan structure characteristics of the imitation folding fan platform, the wiring layout of each sub-screen needs to be improved to avoid interference caused by messy wire bundles. In this embodiment, the box 5 is provided with a wire hole 21 that passes through the box 5 and the cabinet door 2 in sequence and connects to the space inside the cabinet. The display fan blade 17 is provided with a screen groove 22 for installing sub-screens, a wiring groove 23 that connects to the screen groove 22, and a wiring hole 24 that passes through one end of the display fan blade 17 and connects to the wiring groove 23, and extends from the side of the display fan blade 17. The wires of the sub-screen 18 pass through the wiring groove 23, the wiring hole 24, and the wire hole 21 in sequence and are then electrically connected to the equipment inside the cabinet, which is conducive to standardizing the wiring.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0047] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be construed as covering all changes and modifications that encompass the true intent and scope of the invention. Any and all equivalent scope and content within the scope of the claims should be considered to remain within the intent and scope of the invention.

Claims

1. A power cabinet, comprising a cabinet body (1) with an internal space for installing a plurality of devices, and a cabinet door (2) rotatably mounted on the cabinet body (1), characterized in that: The cabinet door (2) is equipped with a touch screen (4) that is electrically connected to the equipment loaded inside the cabinet (1). The touch screen (4) is movably installed on the cabinet door (2) through a protective structure that can be opened and closed. When the protective structure is open, the touch screen (4) is fully unfolded and exposed on the cabinet door (2) for display and operation. When the protective structure is closed, the touch screen (4) is hidden inside the protective structure.

2. A power cabinet according to claim 1, characterized in that: The protective structure is a sealed box, which includes a box body (5) installed on the cabinet door (2) and a box cover (6) movably installed on the box body (5) for sealing the box body (5). The touch screen (4) is installed inside the box body (5).

3. A power cabinet according to claim 2, characterized in that: The lid (6) is hinged to the lower end of the box body (5). The touch screen (4) is a flexible OLED screen. The upper end of the touch screen (4) is installed on the inner wall of the box body (5), and the lower end of the touch screen (4) is installed on the inner wall of the lid (6). When the lid (6) is closed on the box body (5), the touch screen (4) is hidden between the box body (5) and the lid (6) in a U-shaped fold.

4. A power cabinet according to claim 2, characterized in that: The cover (6) is detachably fixed to the body (5), and the touch screen (4) is a flexible OLED screen; the power cabinet also includes a support assembly, which includes a first support piece (7), a second support piece (8), a third support piece (9), and a fourth support piece (10) hinged in sequence; the first support piece (7) is fixed to the inner wall of the body (5), the fourth support piece (10) is fixed to the cover (6), and the upper part of the touch screen (4) is mounted on the second support piece (8). The lower half of the touch screen (4) is mounted on the third support piece (9); when the lid (6) is closed and sealed on the box body (5), the support component is folded in a W-shape and retracted between the box body (5) and the lid (6), the touch screen (4) is folded in a U-shape and hidden inside the support component, and the upper half of the touch screen (4) is sandwiched between the first support piece (7) and the second support piece (8), and the lower half of the touch screen (4) is sandwiched between the third support piece (9) and the fourth support piece (10).

5. A power cabinet according to claim 4, characterized in that: The box body (5) is provided with several magnetic contacts (11), and the edge of the box cover (6) is provided with several metal pieces (12) that match the magnetic contacts (11) and can be magnetically attracted. The box cover (6) is also provided with a ring of waterproof adhesive strip (13) located next to the metal pieces (12).

6. A power cabinet according to claim 4, characterized in that: The first support plate (7) and the fourth support plate (10) are respectively provided with grooves, and a polyurethane foam block (14) of the buffer touch screen (4) is fixed in the groove.

7. A power cabinet according to claim 2, characterized in that: The box body (5) is provided with a rotating shaft (16), and a folding fan-shaped platform is installed on the rotating shaft (16). The folding fan-shaped platform includes several display fan blades (17) sequentially mounted on the rotating shaft (16). The touch screen (4) includes several independent sub-screens (18) installed on the display fan blades (17) in a one-to-one correspondence. The outermost display fan blade (17) is flexibly connected to the box cover (6) directly or indirectly through a connector. The innermost display fan blade (17) is directly or indirectly connected to the box body (5) through a connector. Two adjacent display fan blades (17) are movably connected, so that when the box cover (6) is fully opened, each display fan blade (17) is pulled open in sequence to reveal each sub-screen (18).

8. A power cabinet according to claim 7, characterized in that: The box body (5) is a slender cuboid shape. The box body (5) is placed horizontally on the cabinet door (2) and has an opening at the top. The box cover (6) is hinged to the left side of the opening of the box body (5). The imitation folding fan platform also includes an outer protective fan blade (19) flexibly connected to the box cover (6) and an inner protective fan blade (20) connected to the box body (5). The outer protective fan blade (19) and the inner protective fan blade (20) are both rotatably sleeved on the rotating shaft (16). The outermost display fan blade (17) is movably connected to the outer protective fan blade (19), and the innermost display fan blade (17) is movably connected to the inner protective fan blade (20).

9. A power cabinet according to claim 7, characterized in that: The box body (5) is provided with a wire hole (21) that passes through the box body (5) and the cabinet door (2) and communicates with the space inside the cabinet. The display fan blade (17) is provided with a screen groove (22) for installing the sub-screen (18), a wiring groove (23) that communicates with the screen groove (22), and a wiring hole (24) that passes through one end of the display fan blade (17) and communicates with the wiring groove (23) and extends out from the side of the display fan blade (17) at the other end. The wires of the sub-screen (18) pass through the wiring groove (23), the wiring hole (24), and the wire hole (21) in sequence and are electrically connected to the equipment inside the cabinet.

10. A power cabinet according to any one of claims 1 to 9, characterized in that: The lid (6) is provided with a handle (15) for easy gripping to open the lid (6).

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