High-low voltage complete equipment capable of preventing charged cover opening

Abstract

The application discloses a high-low voltage complete equipment capable of preventing charged opening of a cover and relates to the technical field of high-low voltage complete equipment. The high-low voltage complete equipment comprises a cabinet body and a perspective window. A cabinet door is rotatably arranged on the front side of the cabinet body through a hinge. An auxiliary top frame is arranged on the top of the cabinet body. A locking assembly for preventing the cabinet door from being opened under electricity is arranged in the auxiliary top frame. The locking assembly comprises a resistor, an iron plate, an electromagnet and an extension plate. The output end of the resistor is electrically connected with the electromagnet through a wire. The iron plate is arranged above the electromagnet. Locking columns are arranged on the bottom of the iron plate. The extension plate is arranged on the side of the top of the cabinet door. The high-low voltage complete equipment capable of preventing charged opening of a cover can be connected with the cabinet door through a roller and a side slot. The frictional resistance of the built-in plate during movement can be reduced. The built-in spring can assist the built-in plate in moving downward. The locking state and the power-on state of the cabinet door can be observed from the outside of the cabinet door.

Description

Technical Field

[0001] This invention relates to the field of high and low voltage switchgear technology, specifically to a high and low voltage switchgear system designed to prevent opening while energized. Background Technology

[0002] High- and low-voltage switchgear enables the transmission and distribution of electrical energy and protects the safe operation of power equipment. It consists of high-voltage switchgear, low-voltage switchgear, protection equipment, measuring instruments, and control equipment, used for the supply, distribution, control, and protection of power systems. High-voltage equipment such as transformers and circuit breakers are responsible for voltage transformation and circuit protection, while low-voltage equipment such as distribution cabinets and switchgear are responsible for power distribution and control. They transmit electrical energy through busbars, instrument transformers measure current and voltage, and instruments monitor circuit parameters, working together to maintain the balance and safety of the power system.

[0003] For example, invention application number 202510149491.4 discloses a high- and low-voltage switchgear assembly, belonging to the field of switchgear. This high- and low-voltage switchgear assembly includes a switch cabinet and, more importantly, ventilation channels symmetrically arranged on the side walls of the switch cabinet. This invention overcomes the problems of uneven and poor heat dissipation of internal electrical equipment, untimely cleaning of dustproof panels, and inadequate dehumidification in high- and low-voltage switchgear assemblies. However, during maintenance or other operations, the cabinet door of the high- and low-voltage switchgear assembly is often opened directly. If the switch cabinet is energized, operators risk electric shock if they open the door directly, posing a significant safety hazard.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a high and low voltage complete set of equipment to prevent the opening of the cover while it is energized. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a high- and low-voltage integrated equipment for preventing energized opening of the cover, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high and low voltage complete set of equipment for preventing energized opening, comprising a cabinet and a viewing window. The front side of the cabinet is provided with a cabinet door that rotates via hinges. An auxiliary top frame is installed on the top of the cabinet, and a locking component for preventing energized opening of the cabinet door is provided inside the auxiliary top frame. The locking component includes a resistor, an iron plate, an electromagnet, and an extension plate. The output end of the resistor is electrically connected to the electromagnet via a wire, and an iron plate is installed above the electromagnet. Locking posts are provided on both sides of the bottom of the iron plate. An extension plate is provided on the top of the cabinet door near the door. The viewing window is located inside the cabinet door.

[0007] Furthermore, a protective cover is provided on one side of the outer surface of the cabinet door, and a mechanical lock cylinder is installed inside the protective cover.

[0008] Furthermore, fixed side panels are installed on both sides of the interior of the cabinet, and fixed vertical plates are fixed to the fixed side panels by bolts.

[0009] Furthermore, a placement frame is fixedly installed on one side of the fixed vertical plate by bolts, and two sets of placement frames are provided, and the placement frames have a hollow structure.

[0010] Furthermore, the extension plate has an internal groove, and the internal groove and the locking post are distributed in a one-to-one correspondence.

[0011] Furthermore, an auxiliary component for assisting in observing the locked state of the cabinet door is provided on the outer side of the extension plate, and the auxiliary component includes a side groove, a built-in spring, a roller and a built-in plate. The built-in spring is provided inside the side groove, and a roller is installed at the bottom of the built-in spring. A built-in plate is provided on one side of the roller.

[0012] Furthermore, a locking post is installed above the built-in plate, and the built-in plate has an "L" shaped structure.

[0013] Furthermore, the outer surface of the iron plate is provided with a connecting component for assisting the iron plate to reset, and the connecting component includes a vertical spring, a hook seat, a fixed base plate and a chassis. The two ends of the vertical spring are equipped with hook seats, and the outside of the hook seats is provided with a fixed base plate. The outer surface of the fixed base plate is equipped with a chassis.

[0014] Furthermore, the connection components are provided in four sets, and the four sets of connection components have completely identical structures.

[0015] Furthermore, the locking component is provided in two sets, and photoelectric counters are installed on both sides inside the auxiliary top frame.

[0016] This invention provides a high- and low-voltage switchgear for preventing energized opening, which has the following advantages:

[0017] 1. This high and low voltage switchgear for preventing energized opening features a power supply in the cabinet connected in series with a resistor. This allows the extension plate to extend into the cabinet when the door is closed. When the circuit in the cabinet is active, the electromagnet generates magnetism by energizing the resistor and electromagnet, which then attracts the iron plate. This attraction causes the iron plate to resist the downward force of the vertical spring, allowing the locking pin connected to the iron plate to be inserted into the extension plate through its built-in slot. This achieves automatic locking of the cabinet door when energized, preventing electric shock from operators opening the door while the switchgear is energized.

[0018] 2. This high and low voltage switchgear for preventing energized opening has an internal plate that can be rolled to the cabinet door using rollers and side grooves, which reduces frictional resistance when the internal plate moves. The internal spring design also assists in the downward movement of the internal plate, making it easier for operators to observe the locking and energizing status of the cabinet door from the outside.

[0019] 3. This high and low voltage switchgear for preventing energized opening uses an adsorption mechanism to allow the iron plate to resist the downward movement of the vertical spring force. When no current flows, the iron plate will move upward and reset due to the spring force, facilitating the movement of the locking pin connected to the iron plate from the extension plate. This allows the user to easily open the cabinet door using the hinge design. Furthermore, the number of times the iron plate moves downward can be counted using a photoelectric counter, allowing for the replacement of the vertical spring after multiple uses based on the number of counts, through the design of the hook seat and fixed base plate, thus avoiding significant elastic loss that could affect its use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of a high- and low-voltage complete set of equipment for preventing energized opening according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a cabinet for preventing the opening of a high- and low-voltage complete set of equipment while energized, according to the present invention.

[0022] Figure 3 This is a partial cross-sectional view of the auxiliary top frame structure of a high- and low-voltage complete set of equipment for preventing energized opening according to the present invention.

[0023] Figure 4 This is a bottom view of the mounting structure of a high and low voltage complete set of equipment to prevent opening while energized, according to the present invention.

[0024] Figure 5 This is a schematic diagram of an auxiliary component structure for preventing the opening of a high- and low-voltage complete set of equipment under energized conditions, according to the present invention.

[0025] Figure 6 This invention relates to a high and low voltage complete set of equipment for preventing energized opening of the cover. Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Viewing window; 4. Protective cover; 5. Mechanical lock cylinder; 6. Auxiliary top frame; 7. Fixed side panel; 8. Placement rack; 9. Fixed vertical plate; 10. Locking assembly; 1001. Resistor; 1002. Iron plate; 1003. Electromagnet; 1004. Extension plate; 11. Internal slot; 12. Locking post; 13. Auxiliary assembly; 1301. Side slot; 1302. Internal spring; 1303. Roller; 1304. Internal plate; 14. Connecting assembly; 1401. Vertical spring; 1402. Hook; 1403. Fixed base plate; 1404. Chassis; 15. Photoelectric counter. Detailed Implementation

[0027] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0028] like Figures 1-6As shown, the present invention provides a technical solution: a complete set of high and low voltage equipment for preventing energized opening, including a cabinet body 1, a cabinet door 2, a viewing window 3, a protective cover 4, a mechanical lock cylinder 5, an auxiliary top frame 6, a fixed side plate 7, a placement rack 8, a fixed vertical plate 9, a locking assembly 10, a resistor 1001, an iron plate 1002, an electromagnet 1003, an extension plate 1004, an internal groove 11, a locking post 12, an auxiliary assembly 13, a side groove 1301, an internal spring 1302, a roller 1303, an internal plate 1304, a connecting assembly 14, a vertical spring 1401, a hook seat 1402, a fixed base plate 1403, a chassis 1404, and a photoelectric counter 15. The front side of the cabinet body 1 is provided with a cabinet door 2 that rotates via a hinge. The interior of the cabinet body 1 has two... Each side is equipped with a fixed side plate 7, and a fixed vertical plate 9 is fixed to the fixed side plate 7 by bolts. A placement rack 8 is fixed to one side of the fixed vertical plate 9 by bolts. There are two sets of placement racks 8, and the placement rack 8 has a hollow structure. The design of the threaded holes of the fixed side plate 7 and the fixed vertical plate 9 allows the user to flexibly adjust the height of the placement rack 8, making it easy for the user to adapt the installation according to the needs of use, reducing the limitation of use, and making it easy for the user to use the placement rack 8. A protective cover 4 is provided on one side of the outer surface of the cabinet door 2, and a mechanical lock cylinder 5 is installed inside the protective cover 4. It is activated by a lock body corresponding to the shape of the mechanical lock cylinder 5. The design of the protective cover 4 can protect the mechanical lock cylinder 5. The top of the cabinet 1 An auxiliary top frame 6 is installed, and the interior of the auxiliary top frame 6 is equipped with a locking component 10 to prevent the cabinet door 2 from being opened while energized. The locking component 10 includes a resistor 1001, an iron plate 1002, an electromagnet 1003, and an extension plate 1004. The output terminal of the resistor 1001 is electrically connected to the electromagnet 1003 via a wire, and the iron plate 1002 is installed above the electromagnet 1003. Locking posts 12 are provided on both sides of the bottom of the iron plate 1002. An extension plate 1004 is provided on the top of the cabinet door 2 near the side of the cabinet door 2. The extension plate 1004 has an internal groove 11, and the internal groove 11 and the locking post 12 are distributed one-to-one. A viewing window 3 is provided inside the cabinet door 2. The power supply in the cabinet 1 is connected to the resistor 1001. The power supply in section 1 is connected in series, so that when the cabinet door 2 is closed, the extension plate 1004 can extend into the interior of the cabinet 1. When the circuit in the cabinet 1 is on, the resistor 1001 and the electromagnet 1003 are energized, and the electromagnet 1003 generates magnetism. The design of the electromagnet 1003 can attract the iron plate 1002. The attraction of the iron plate 1002 makes the iron plate 1002 resist the elastic force of the vertical spring 1401 and move downward. Thus, the locking pin 12 connected to the iron plate 1002 can be inserted into the extension plate 1004 through the built-in slot 11, realizing the automatic locking of the cabinet door 2 when the cabinet 1 is energized, avoiding the problem of electric shock caused by the operator directly opening the cabinet door when the switch cabinet is energized.

[0029] An auxiliary component 13 for assisting in observing the locked state of the cabinet door 2 is provided on one side of the extension plate 1004. The auxiliary component 13 includes a side groove 1301, an internal spring 1302, a roller 1303, and an internal plate 1304. The internal spring 1302 is provided inside the side groove 1301, and the roller 1303 is installed at the bottom of the internal spring 1302. The internal plate 1304 is provided on one side of the roller 1303, and a locking pin 12 is installed on the top of the internal plate 1304. The internal plate 1304 has an "L"-shaped structure. When the resistor 1001 and the electromagnet 1003 are energized, the electromagnet 1003 generates magnetism, thereby attracting the iron plate 1002. The attraction of the iron plate 1002 allows the iron plate 1002 to resist the downward force of the vertical spring 1401. After the locking pin 12, which is connected to the iron plate 1002, is inserted into the extension plate 1004 through the built-in groove 11, the locking pin 12 extends into the extension plate 1004 and presses the built-in plate 1304 downward. The built-in plate 1304 can be rolled and connected to the cabinet door 2 by the roller 1303 and the side groove 1301, which can reduce the frictional resistance when the built-in plate 1304 moves. The design of the built-in spring 1302 can assist the built-in plate 1304 to move downward, so that the operator can observe the locking status and power status of the cabinet door 2 from the outside of the cabinet door 2. In addition, when the power is off, the locking pin 12 can move upward, so that the locking pin 12 stops pressing the built-in plate 1304 downward. The built-in plate 1304 can move upward and reset by the elastic design of the built-in spring 1302, so that the built-in plate 1304 can be used again.

[0030] The outer surface of the iron plate 1002 is provided with a connecting assembly 14 for assisting the iron plate 1002 in resetting. The connecting assembly 14 includes a vertical spring 1401, a hook seat 1402, a fixed base plate 1403, and a chassis 1404. Hook seats 1402 are installed at both ends of the vertical spring 1401, and a fixed base plate 1403 is provided on the outside of the hook seat 1402. The chassis 1404 is installed on the outer surface of the fixed base plate 1403. There are four sets of connecting assemblies 14, and the four sets of connecting assemblies 14 are completely identical in structure. There are two sets of locking assemblies 10. Photoelectric counters 15 are installed on both sides inside the auxiliary top frame 6. By adsorbing the iron plate 1002, the iron plate 1002 can resist the elastic force of the vertical spring 1401 and move downward. When no current passes through, the iron plate 1002 will move downward due to the vertical spring 1401. The 401 spring force causes the upper part to move and reset, facilitating the movement of the locking pin 12 connected to the iron plate 1002 from the extension plate 1004. This allows the user to easily open the cabinet door 2 using the hinge design. The number of times the iron plate 1002 moves downward can be counted using a photoelectric counter 15. The photoelectric counter 15 uses photoelectric sensors such as photodiodes and CCDs to convert light signals into electrical signals. Then, the signal is processed by circuits such as amplification and filtering to eliminate noise interference. Finally, the count is displayed: the number of signal pulses is counted by digital circuits or software and the result is displayed in digital form. This allows for the replacement of the vertical spring 1401, which can be used multiple times, based on the number of counts, through the design of the hook seat 1402 and the fixed base plate 1403, avoiding significant elastic loss that could affect its use.

[0031] In summary, as Figures 1-6As shown, this high and low voltage integrated equipment for preventing energized opening allows for flexible height adjustment of the placement rack 8 by means of threaded holes in the fixed side plate 7 and fixed vertical plate 9. The power supply in the cabinet 1 is connected in series with the power supply introduced into the resistor 1001, allowing the extension plate 1004 to extend into the cabinet 1 when the cabinet door 2 is closed. When the circuit in the cabinet 1 is conducting, the resistor 1001 and electromagnet 1003 are energized, causing the electromagnet 1003 to generate magnetism. This allows the electromagnet 1003 to attract the iron plate 1002. The attraction of the iron plate 1002 causes it to resist the downward force of the vertical spring 1401, thus locking the locking pin 12 connected to the iron plate 1002. The built-in slot 11 can be inserted into the extension plate 1004, enabling automatic locking of the cabinet door 2 when the cabinet 1 is powered on. The adsorption of the iron plate 1002 allows it to resist the downward force of the vertical spring 1401. When no current flows, the iron plate 1002 will move upward and reset due to the force of the vertical spring 1401, facilitating the movement of the locking pin 12 connected to the iron plate 1002 from the extension plate 1004. This allows the user to easily open the cabinet door 2 using the hinge design. The number of downward movements of the iron plate 1002 can be counted using a photoelectric counter 15. The photoelectric counter 15 uses photoelectric sensors such as photodiodes and CCDs to convert light signals into electrical signals, which are then processed: amplified and filtered. The circuit processes the electrical signal, eliminates noise interference, and finally counts and displays the signal pulses: the number of signal pulses is counted by digital circuits or software and the result is displayed in digital form. This facilitates the replacement of the repeatedly used vertical spring 1401 based on the count, thanks to the design of the hook 1402 and the fixed base plate 1403, avoiding significant elastic wear that could affect its use. Furthermore, when the resistor 1001 and electromagnet 1003 are energized, the electromagnet 1003 generates magnetism, allowing it to attract the iron plate 1002. This attraction enables the iron plate 1002 to resist the downward force of the vertical spring 1401, allowing the locking pin 12 connected to the iron plate 1002 to move downwards through the built-in slot 1. After being inserted into the extension plate 1004, the locking pin 12 extends into the extension plate 1004. The locking pin 12 will press down on the inner plate 1304. The inner plate 1304 can be rolled to the cabinet door 2 using the roller 1303 and the side groove 1301, which can reduce the frictional resistance when the inner plate 1304 moves. The design of the inner spring 1302 can assist the inner plate 1304 to move down, making it easier for the operator to observe the locking status and power status of the cabinet door 2 from the outside. In addition, when the power is off, the locking pin 12 can move up, so that the locking pin 12 stops pressing down on the inner plate 1304. The inner plate 1304 can move up and reset using the elastic design of the inner spring 1302, so that the inner plate 1304 can be used again.

[0032] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-low voltage complete equipment for preventing live opening of a cover, comprising a cabinet (1) and a sight window (3), characterized in that: The front side of the cabinet body (1) is provided with a cabinet door (2) through a hinge rotation, the top of the cabinet body (1) is provided with an auxiliary top frame (6), and the inside of the auxiliary top frame (6) is provided with a locking assembly (10) for preventing the cabinet door (2) from being opened when electrified, the locking assembly (10) comprises an electric resistance (1001), an iron plate (1002), an electromagnet (1003) and an extension plate (1004), the output end of the electric resistance (1001) is electrically connected with the electromagnet (1003) through a wire, the top of the electromagnet (1003) is provided with the iron plate (1002), the bottom of the iron plate (1002) is provided with a locking column (12) on both sides, the side of the cabinet door (2) top close to the cabinet body (1) is provided with the extension plate (1004), the perspective window (3) is arranged in the inside of the cabinet door (2), the inside of the extension plate (1004) is provided with an embedded groove (11), and the embedded groove (11) and the locking column (12) are one-to-one corresponding, one side of the extension plate (1004) is provided with an auxiliary assembly (13) for assisting in observing the locking state of the cabinet door (2), and the auxiliary assembly (13) comprises a side groove (1301), an embedded spring (1302), a roller (1303) and an embedded plate (1304), the inside of the side groove (1301) is provided with the embedded spring (1302), the bottom of the embedded spring (1302) is provided with the roller (1303), one side of the roller (1303) is provided with the embedded plate (1304), the top of the embedded plate (1304) is provided with the locking column (12), and the embedded plate (1304) is in an L-shaped structure.

2. The high-low voltage complete equipment for preventing charged unblanking according to claim 1, characterized in that: The outer surface of the cabinet door (2) is provided with a protective cover (4), and the inside of the protective cover (4) is provided with a mechanical lock core (5).

3. The high-low voltage complete equipment for preventing charged unblanking according to claim 1, characterized in that: The inside of the cabinet body (1) is provided with a fixed side plate (7) on both sides, and the fixed side plate (7) is provided with a fixed vertical plate (9) through bolt fixing.

4. The high-low voltage complete set device for preventing charged unblanking according to claim 3, characterized in that: One side of the fixed vertical plate (9) is provided with a placing rack (8) through bolt fixing, and the placing rack (8) is provided with two groups, and the placing rack (8) is in a hollow structure.

5. The high-low voltage complete set equipment for preventing charged unblanking according to claim 1, characterized in that: The outer surface of the iron plate (1002) is provided with a connecting assembly (14) for assisting the iron plate (1002) to reset, and the connecting assembly (14) comprises a vertical spring (1401), a hook base (1402), a fixed bottom plate (1403) and a bottom disc (1404), the two ends of the vertical spring (1401) are provided with the hook base (1402), the outer surface of the hook base (1402) is provided with the fixed bottom plate (1403), and the outer surface of the fixed bottom plate (1403) is provided with the bottom disc (1404).

6. The high-low voltage complete set device for preventing charged unblanking according to claim 5, characterized in that: The connecting assembly (14) is provided with four groups, and the four groups of the connecting assembly (14) are completely identical.

7. The high-low voltage complete set device for preventing charged uncap according to claim 1, characterized in that: The locking assembly (10) is provided with two groups, and the inside of the auxiliary top frame (6) is provided with a photoelectric counter (15) on both sides.

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