Inductive locking structure of high-voltage power distribution cabinet

Abstract

An induction type locking structure of a high-voltage power distribution cabinet comprises an electric leakage induction module, an electric push rod, a locking head, a locking block, a control chip and a UPS, the electric leakage induction module is installed in a main loop of the high-voltage power distribution cabinet or at the position of a cabinet body grounding wire of the high-voltage power distribution cabinet, and the electric leakage induction module is in communication connection with the control chip through a cable. A locking block is arranged at the end, close to the hinge, of the inner side of the bottom of the cabinet door, a locking head driven by an electric push rod to move up and down is arranged above the locking block, the electric push rod is fixedly connected to the cabinet body, the locking head moves downwards to be tightly attached to the top of the locking block to lock the cabinet door, and the electric push rod is in communication connection with the control chip through a cable. And a UPS (Uninterrupted Power Supply) for providing electric energy for the electric push rod and the control chip is fixedly arranged on the cabinet body. According to the locking structure, real-time monitoring and automatic locking of the electric leakage condition of the high-voltage power distribution cabinet are achieved, electric shock accidents are effectively avoided, and the operation safety of electric power workers and the safety performance of the high-voltage power distribution cabinet are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a power distribution cabinet technical field, concretely relates to a high voltage power distribution cabinet inductive locking structure. BACKGROUND

[0002] In the power industry, high voltage power distribution cabinets, as the core equipment of power distribution and control, are widely used in various power systems. As shown in the figure, the traditional high voltage power distribution cabinet is usually composed of a cabinet body 1 and a cabinet door 2, the cabinet door 2 is connected with the cabinet body 1 through a hinge 4 on one side, and the other side adopts a traditional key to open the cabinet lock 3 for opening and closing operation. Figure 1 Although this design is simple in structure and intuitive in operation, it has significant safety hazards in actual application.

[0003] Since the high voltage power distribution cabinet bears high voltage inside, once a leakage fault occurs, the cabinet body and the surrounding environment may have dangerous voltage. At this time, if the power workers still use the traditional way to open the lock and operate the cabinet door, it is easy to cause electric shock accident by directly contacting the live part, which seriously threatens the safety of personnel life. In addition, the traditional cabinet lock cannot monitor and respond to the leakage in real time, so it cannot prevent personnel from approaching the dangerous area in time when leakage occurs, further aggravating the safety risk.

[0004] With the continuous progress of power technology and the increasingly strict power safety standards, higher requirements are put forward for the safety performance of high voltage power distribution cabinets. In order to effectively reduce the risk of electric shock accident and improve the operation safety of power workers, it is necessary to introduce leakage induction technology on the basis of traditional cabinet lock. Through real-time monitoring of the leakage of high voltage power distribution cabinet and automatic locking of cabinet door when leakage is detected, it prevents personnel from opening by traditional way, so as to avoid the occurrence of electric shock accident.

[0005] Therefore, it is of great significance to develop a high voltage power distribution cabinet locking structure with leakage induction function to improve the safety and reliability of power system. UTILITY MODEL CONTENTS

[0006] In order to solve the above problems, the utility model provides a high voltage power distribution cabinet inductive locking structure, which realizes real-time monitoring and automatic locking of high voltage power distribution cabinet leakage by introducing leakage induction technology, effectively avoids the occurrence of electric shock accident, improves the operation safety of power workers and the safety performance of high voltage power distribution cabinet, and has important significance for improving the safety and reliability of power system.

[0007] The technical scheme of the utility model is as follows:

[0008] The utility model provides a high -voltage distribution cabinet inductive locking structure sets up on high -voltage distribution cabinet, and high -voltage distribution cabinet is composed of cabinet body and cabinet door, and one side of cabinet door is installed through hinge in the side of the front opening of cabinet body, and the other side of cabinet door is connected with the other side of the front opening of cabinet body through cabinet lock and can be opened and closed, and inductive locking structure includes electric leakage induction module, electric push rod, locking head, locking block, control chip and UPS power supply, electric leakage induction module installs in the main circuit of high -voltage distribution cabinet or the ground wire of high -voltage distribution cabinet cabinet body, and electric leakage induction module is connected with control chip communication through cable, and locking block is arranged on the bottom inboard of cabinet door close to the end of hinge, and locking head that moves up and down is arranged above locking block and is driven through electric push rod, and electric push rod is fixedly connected on the cabinet body, and locking head is locked with the top of locking block after descending and abutting closely, and electric push rod is connected with control chip communication through cable, and the UPS power supply that provides electric energy for electric push rod and control chip is fixedly arranged on the cabinet body.

[0009] Locking head is circular plate structure, and the inner side surface of locking head is tangent with the inner side surface of cabinet door, and locking block is quarter circular plate structure, and one side end surface of locking block is fixed on the inner side surface of cabinet door and rotates along with cabinet door as hinge center, and when locking block rotates in 0-90 DEG range, locking head is always above locking block.

[0010] The bottom of locking head is densely covered with several conical protrusions, and the top of locking block is provided with conical recesses matched with the conical protrusions, and the conical recesses are densely arranged in the part through which the vertical projection of locking head passes when locking block rotates in 0-90 DEG range.

[0011] Electric push rod, control chip and UPS power supply are fixedly installed in the shell, and the telescopic rod of electric push rod is fixedly connected with locking head after extending out from the bottom of shell, and the shell is fixedly installed on the cabinet body.

[0012] Insulating pad is arranged between the shell and the cabinet body.

[0013] The cabinet body is provided with a threading hole for the external power supply line to pass in, and an insulating sleeve I is arranged in the threading hole, and the external power supply line is connected to the UPS power supply.

[0014] An audible and visual alarm is installed in the shell, and the audible and visual alarm is connected with the control chip and the UPS power supply through cables.

[0015] The high -voltage distribution cabinet inductive locking structure further includes locking grounding device.

[0016] The locking grounding device includes a striker, an external grounding wire and a grounding plate, the striker is fixedly connected to the locking head and can move up and down with the locking head, the grounding plate is fixedly arranged on the cabinet body, the end of the grounding plate is arranged directly below the striker, and the grounding plate is connected to the grounding device of the cabinet body through the external grounding wire.

[0017] The cabinet body is provided with a threading hole for a ground wire, and an insulating sleeve II is arranged in the threading hole of the ground wire.

[0018] The high-voltage power distribution cabinet induction type locking structure has the advantages that:

[0019] 1. The high-voltage power distribution cabinet induction type locking structure can monitor the leakage of the power distribution cabinet in real time. Once the leakage is detected, the control chip will immediately control the electric push rod to drive the locking head to move downward and tightly fit with the locking block on the inner side of the cabinet door, so as to realize automatic locking of the cabinet door and prevent the cabinet door from being opened by a traditional method, thereby avoiding electric shock accidents caused by direct contact with live parts and greatly improving the operation safety of electric power workers.

[0020] 2. The high-voltage power distribution cabinet induction type locking structure can be locked at any time within the 0-90° opening and closing range of the cabinet door. The unique design of the locking head and the locking block enables the electric push rod to drive the locking head to move downward and cooperate with the locking block to realize reliable locking of the cabinet door as long as the control chip receives a leakage signal, regardless of the opening angle of the cabinet door. This feature provides flexible safety protection for electric power workers in different working scenarios, and can prevent personnel from operating in time when leakage occurs, thereby effectively reducing the risk of electric shock, regardless of whether the cabinet door is partially opened or nearly fully opened.

[0021] 3. The high-voltage power distribution cabinet induction type locking structure is stable and reliable. The locking head adopts a circular plate structure and is in tangential cooperation with the inner side of the cabinet door. The locking block is a quarter circular plate structure, and one side end face is fixed to the inner side of the cabinet door and rotates along the hinge as the center. When the locking block rotates within the 0-90° range, the locking head is always above the locking block, ensuring the stability and reliability of the locking structure. At the same time, the conical protrusions on the bottom of the locking head cooperate with the conical depressions on the top of the locking block, further enhancing the firmness of the locking and preventing the cabinet door from being accidentally opened in the event of leakage.

[0022] 4. The high-voltage power distribution cabinet induction type locking structure integrates the electric push rod, the control chip, and the UPS power supply in the shell. The telescopic rod of the electric push rod is fixedly connected to the locking head after extending from the bottom of the shell, and the shell is fixedly installed on the cabinet body. This integrated design not only makes the entire locking structure more compact and facilitates installation on the high-voltage power distribution cabinet, but also facilitates subsequent maintenance and repair work. In addition, the insulating pad arranged between the shell and the cabinet body effectively prevents the influence of leakage on the electronic components inside the locking structure, improving the safety and stability of the equipment.

[0023] 5、The utility model discloses a high -voltage distribution cabinet inductive type locking structure can provide sustainable power guarantee: the fixed setting UPS power supply on the cabinet body provides electric energy for electric push rod and control chip. UPS power supply can continue to provide stable power support for locking structure when external power failure or power failure, ensure that locking structure can work normally under various conditions, further improve the security and reliability of high -voltage distribution cabinet.

[0024] 6、The utility model discloses a high -voltage distribution cabinet inductive type locking structure, the high -voltage distribution cabinet inductive type locking structure has the sound and light alarm function: install the sound and light alarm in the casing, respectively with control chip and UPS power supply are connected through the cable. When the leakage sensing module detects the leakage condition, control chip will trigger the sound and light alarm and issue the alarm, remind the surrounding personnel to pay attention to the danger, and take corresponding safety measures in time, avoid the further expansion of the accident.

[0025] 7、The utility model discloses a high -voltage distribution cabinet inductive type locking structure, the high -voltage distribution cabinet inductive type locking structure enhances the earthing protection: set up locking grounding device, including the baffle, external grounding wire and grounding plate. The baffle fixedly connected on the locking head can move up and down with the locking head, and the grounding plate is fixedly arranged on the cabinet body, and the end part of the grounding plate is arranged directly below the baffle, and the grounding plate is connected with the grounding device of the cabinet body through the external grounding wire. When the locking head is down and locks the cabinet door, the baffle will contact with the grounding plate, realizes the good earthing effect, further enhances the earthing protection of high -voltage distribution cabinet, reduces the harm of leakage accident to personnel and equipment.

[0026] 8、The utility model discloses a high -voltage distribution cabinet inductive type locking structure, the high -voltage distribution cabinet inductive type locking structure has good insulation performance: set up the threading hole for the external power cord and external grounding wire to pass in on the cabinet body, and set up insulation sleeve I and insulation sleeve II in the threading hole, effectively prevent the direct contact between external power cord and grounding wire and the cabinet body, avoid the conduction of leakage current, improve the insulation performance of whole locking structure, guarantee the safe operation of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0027] The schemes and advantages of the present application will become clear to those skilled in the art from the following detailed description of the preferred embodiments. The drawings are merely provided for the purpose of illustrating the preferred embodiments and are not considered as limiting the present utility model.

[0028] In the drawings:

[0029] Figure 1 It is the structural schematic diagram of high -voltage distribution cabinet in the prior art;

[0030] Figure 2 A high-voltage power distribution cabinet induction type locking structure according to an embodiment of the utility model has a structure diagram as shown in the figure;

[0031] Figure 3 For Figure 2 The enlarged view at A in the middle;

[0032] Figure 4 For Figure 3 The B-B section view in the middle;

[0033] The components represented by the reference numerals in the figure are:

[0034] The utility model discloses: 1, cabinet, 2, cabinet door, 2a, locking block, 2a1, conical recess, 3, cabinet lock, 4, hinge, 5, insulating pad, 6, shell, 7, leakage induction module, 8, electric push rod, 9, locking head, 9a, conical convex, 10, audible and visual alarm, 11, control chip, 12, UPS power supply, 13, external power cord, 14, insulating sleeve I, 15, bump block, 16, external grounding wire, 17, insulating sleeve II, 18, grounding plate. Specific implementation

[0035] The high-voltage power distribution cabinet induction type locking structure is arranged on the high-voltage power distribution cabinet, as shown in the figure, Figure 1 In the prior art, the high-voltage power distribution cabinet is composed of a cabinet 1 and a cabinet door 2, one side of the cabinet door 2 is installed on one side of the front opening of the cabinet 1 through a hinge 4, and the other side of the cabinet door 2 is connected to the other side of the front opening of the cabinet 1 through a cabinet lock 3.

[0036] As shown in the figure, Figures 2-4 The induction type locking structure includes a leakage induction module 7, an electric push rod 8, a locking head 9, a locking block 2a, a control chip 11 and a UPS power supply 12.

[0037] The leakage induction module 7 is installed in the main circuit of the high-voltage power distribution cabinet or at the cabinet grounding wire of the high-voltage power distribution cabinet and is in communication connection with the control chip 11 through a cable. Its function is to monitor the leakage of the high-voltage power distribution cabinet in real time, and when leakage is detected, a signal is transmitted to the control chip 11.

[0038] The electric push rod 8 is fixedly connected to the cabinet 1 and is in communication connection with the control chip 11 through a cable. Its function is to drive the locking head 9 to move up and down according to the instruction of the control chip 11.

[0039] The locking head 9 is a circular plate structure, and the locking head 9 driven by the electric push rod 8 to move up and down is arranged above the locking block 2a, and the locking head 9 is in tangential cooperation with the inner side of the cabinet door 2. Its function is to be close to the top of the locking block 2a under the driving of the electric push rod 8 and then lock the cabinet door 2.

[0040] The locking block 2a is a quarter circular plate structure, which is arranged at the bottom of the cabinet door 2 near one end of the hinge 4. One side end face of the locking block 2a is fixed to the inner side of the cabinet door 2 and rotates along the hinge 4 as the center of the cabinet door 2. When the locking block 2a rotates within the range of 0-90°, the locking head 9 is always above the locking block 2a.

[0041] The control chip 11 receives the leakage signal transmitted by the leakage induction module 7 and controls the driving of the electric push rod 8 according to the signal, so as to realize the up-down movement of the locking head 9.

[0042] The UPS power supply 12 is fixedly arranged on the cabinet body 1 and provides power for the electric push rod 8 and the control chip 11. When the external power supply fails or is powered off, the UPS power supply 12 can continue to provide stable power support for the locking structure, ensuring that the locking structure can work normally in various situations.

[0043] The high-voltage power distribution cabinet induction type locking structure effectively avoids electric shock accidents: through the leakage induction module 7, the leakage situation is monitored in real time. Once leakage is detected, the control chip 11 immediately controls the electric push rod 8 to drive the locking head 9 to descend and lock the cabinet door 2, preventing personnel from operating and avoiding electric shock.

[0044] The high-voltage power distribution cabinet induction type locking structure can be locked at any time within the opening and closing range of the cabinet door: the design of the locking head 9 and the locking block 2a enables the locking operation to be performed at any time within the 0-90° opening and closing range of the cabinet door 2, providing flexible safety protection for electric power workers.

[0045] The high-voltage power distribution cabinet induction type locking structure is stable and reliable: the circular plate structure of the locking head 9 and the locking block 2a and the cooperation of the conical protrusion 9a and the conical depression 2a1 enhance the firmness of the locking and prevent the cabinet door 2 from being accidentally opened.

[0046] The high-voltage power distribution cabinet induction type locking structure is integrated and designed for easy installation and maintenance: the electric push rod 8, the control chip 11 and the UPS power supply 12 are fixedly installed in the shell 6, and the shell 6 is fixedly installed on the cabinet body 1, so that the entire locking structure is more compact, facilitating installation and maintenance.

[0047] The high-voltage power distribution cabinet induction type locking structure provides continuous power support: the setting of the UPS power supply 12 ensures that the locking structure can still work normally when the external power supply fails or is powered off, improving the safety and reliability of the high-voltage power distribution cabinet.

[0048] The high-voltage power distribution cabinet induction type locking structure has a sound and light alarm function: the sound and light alarm 10 is installed in the shell 6. When the leakage induction module 7 detects a leakage situation, the sound and light alarm 10 issues an alarm to remind the surrounding personnel to pay attention to the danger.

[0049] The high-voltage distribution cabinet induction type locking structure enhances the grounding protection: the setting of the grounding device realizes good grounding effect through the contact of the striker 15 and the grounding plate 18, and reduces the harm of leakage accidents to personnel and equipment.

[0050] The high-voltage distribution cabinet induction type locking structure has good insulation performance: the insulation sleeve I 14 and the insulation sleeve II 17 set in the threading hole effectively prevent the direct contact between the external power line and the grounding line and the cabinet 1, and improve the insulation performance of the entire locking structure.

[0051] Install the leakage induction module 7 in the main circuit of the high-voltage distribution cabinet or at the grounding line of the cabinet. During installation, ensure that the leakage induction module 7 is firmly connected to the main circuit or the grounding line to avoid poor contact. At the same time, pay attention to the installation position of the leakage induction module 7, and select a position that can accurately monitor the leakage condition to ensure the accuracy of monitoring.

[0052] Fix the electric push rod 8 to the cabinet 1, and the telescopic rod of the electric push rod 8 is fixedly connected with the locking head 9 after extending from the bottom of the shell 6. When installing the electric push rod 8, ensure that its installation position is accurate, so that the locking head 9 can smoothly descend and cooperate with the locking block 2a when needed. Pay attention to the connection between the locking head 9 and the electric push rod 8, and the tangential cooperation with the outer side of the inner side of the cabinet door 2 to ensure the reliability of the locking.

[0053] Set the locking block 2a on the bottom inner side of the cabinet door 2 close to one end of the hinge 4, and the side end face of the locking block 2a is fixed to the inner side of the cabinet door 2. When installing, ensure that the installation position of the locking block 2a is accurate, and when rotating within the range of 0-90°, the locking head 9 is always above it. At the same time, pay attention to the firm connection between the locking block 2a and the cabinet door 2 to avoid loosening during use.

[0054] Fix the control chip 11 and the UPS power supply 12 in the shell 6, and fix the shell 6 to the cabinet 1. During installation, pay attention to the installation position and direction of the control chip 11 and the UPS power supply 12 to ensure their normal work. At the same time, ensure the firm connection between the shell 6 and the cabinet 1, and set the insulating pad 5 to enhance the insulation performance.

[0055] Install the audible and visual alarm 10 in the shell 6, and the audible and visual alarm 10 is connected with the control chip 11 and the UPS power supply 12 through cables. When installing, pay attention to the installation position and direction of the audible and visual alarm 10 to ensure that the alarm sound and light emitted by it can be clearly perceived by the surrounding personnel.

[0056] The striker 15 is fixedly connected to the locking head 9 and can move up and down with the locking head 9. The grounding plate 18 is fixedly arranged on the cabinet body 1 and arranged at the lower side of the striker 15. The grounding plate 18 is connected to the grounding device of the cabinet body 1 through the external grounding wire 16. During installation, attention should be paid to the accurate installation position of the striker 15 and the grounding plate 18 to ensure that the striker 15 can be in good contact with the grounding plate 18 when descending. At the same time, attention should be paid to the firm connection of the external grounding wire 16 and the arrangement of the insulating sleeve II 17 in the wire hole to ensure good insulation performance.

[0057] In this embodiment, the leakage sensing module is selected from ABB brand, model GDA202 AC-25 / 0.03. The leakage sensing module can accurately detect the leakage current in the circuit. When the leakage current exceeds the set threshold, it can quickly output an alarm signal, effectively preventing electric shock accidents and electrical fires.

[0058] In this embodiment, the electric push rod is selected from JIECANG brand, model DTZ-50. The electric cabinet can efficiently convert the rotary motion of the motor into linear reciprocating motion, achieving precise actions such as pushing, pulling, lifting, and lowering.

[0059] In this embodiment, the sound and light alarm is selected from ZHILT brand, model LTE-1101J. The sound and light alarm has flash warning and LED signal warning functions, and can simultaneously issue warnings from visual and auditory aspects, quickly attracting people's attention in emergency situations, and improving safety levels.

[0060] In this embodiment, the control chip is selected from STMicroelectronics brand, model STM32F103C8T6 microcontroller. As a microcontroller, STM32F103C8T6 is responsible for processing input signals, executing control algorithms, and outputting control signals to achieve precise control and coordinated operation of various devices, widely used in motor control, sensor data acquisition and processing, smart home control, industrial automation control, etc.

[0061] In this embodiment, the UPS power supply is selected from SANTAK brand, model C3KS. When the power supply is normal, it processes the input AC power for voltage stabilization, filtering, etc. and supplies power to the load, and charges the battery at the same time. When the power supply is interrupted, it immediately converts the DC power of the battery into AC power to provide uninterrupted power supply for the load, ensuring the normal operation of the load device.

[0062] Normal working state: When the high-voltage power distribution cabinet is running normally, the leakage induction module 7 does not detect leakage, the control chip 11 does not issue instructions, the electric push rod 8 does not drive the locking head 9 to descend, and the cabinet door 2 can be normally opened and closed through the traditional cabinet lock 3. At this time, the electric power workers can operate the high-voltage power distribution cabinet according to the normal operation process.

[0063] Leakage detection and locking: When the leakage induction module 7 detects leakage of the high-voltage power distribution cabinet, it immediately transmits a signal to the control chip 11. After receiving the signal, the control chip 11 quickly controls the electric push rod 8 to drive the locking head 9 to descend, and the locking head 9 tightly contacts the top of the locking block 2a, locking the cabinet door 2. At the same time, the sound and light alarm 10 issues an alarm to remind the surrounding personnel to pay attention to the danger. At this time, even if the electric power workers try to open the cabinet door 2 through the traditional cabinet lock 3, it cannot be achieved, thereby effectively avoiding the occurrence of electric shock accidents.

[0064] Protection when external power fails: When the external power fails or is powered off, the UPS power supply 12 immediately provides power for the electric push rod 8, the control chip 11, and the sound and light alarm 10, ensuring that the locking structure and the sound and light alarm function can continue to work normally. This ensures that the safety performance of the high-voltage power distribution cabinet can be guaranteed in various situations.

Claims

1. A high-voltage switchgear inductive locking structure, which is arranged on a high-voltage switchgear composed of a cabinet body (1) and a cabinet door (2), one side of the cabinet door (2) being installed on one side of a front opening of the cabinet body (1) through a hinge (4), and the other side of the cabinet door (2) being connected to the other side of the front opening of the cabinet body (1) through a cabinet lock (3) in an openable and closable manner, characterized in that, The induction type locking structure comprises a leakage induction module (7), an electric push rod (8), a locking head (9), a locking block (2a), a control chip (11) and a UPS power supply (12), the leakage induction module (7) is installed in the main loop of the high-voltage power distribution cabinet or at the cabinet body grounding wire of the high-voltage power distribution cabinet, the leakage induction module (7) is in communication connection with the control chip (11) through a cable, the bottom inner side of the cabinet door (2) is provided with the locking block (2a) close to one end of the hinge (4), the locking head (9) driven by the electric push rod (8) to move up and down is arranged above the locking block (2a), the electric push rod (8) is fixedly connected to the cabinet body (1), the locking head (9) is in close contact with the top of the locking block (2a) when descending, and the cabinet door (2) is locked, the electric push rod (8) is in communication connection with the control chip (11) through a cable, and the UPS power supply (12) for providing electric energy for the electric push rod (8) and the control chip (11) is fixedly arranged on the cabinet body (1).

2. The inductive latching structure of a high-voltage power distribution cabinet according to claim 1, characterized in that, The locking head (9) is a circular plate structure, the locking head (9) is in tangential cooperation with the inner side of the cabinet door (2), the locking block (2a) is a quarter circular plate structure, one side end surface of the locking block (2a) is fixed to the inner side of the cabinet door (2) and rotates along the hinge (4) as the center, and the locking head (9) is always above the locking block (2a) when the locking block (2a) rotates within the range of 0-90°.

3. The inductive latching structure of a high-voltage power distribution cabinet according to claim 2, characterized in that, The bottom of the locking head (9) is densely provided with a plurality of conical protrusions (9a), and the top of the locking block (2a) is provided with conical recesses (2a1) matched with the conical protrusions (9a), the conical recesses (2a1) are densely arranged at the part through which the locking head (9) vertically projects when the locking block (2a) rotates within the range of 0-90°.

4. The inductive latching structure of a high-voltage power distribution cabinet according to claim 1, characterized in that, The electric push rod (8), the control chip (11) and the UPS power supply (12) are fixedly installed in the shell (6), the telescopic rod of the electric push rod (8) is fixedly connected with the locking head (9) after extending out of the bottom of the shell (6), and the shell (6) is fixedly installed on the cabinet body (1).

5. The inductive latching structure of a high-voltage switchgear cabinet according to claim 4, characterized in that, An insulating pad (5) is arranged between the shell (6) and the cabinet body (1).

6. The inductive latching structure of a high-voltage power distribution cabinet according to claim 4, characterized in that, A wire hole is arranged on the cabinet body (1) for the external power supply line (13) to pass in, an insulating sleeve I (14) is arranged in the wire hole, and the external power supply line (13) is connected to the UPS power supply (12).

7. The inductive latching structure of a high-voltage switchgear cabinet according to claim 4, characterized in that, A sound and light alarm (10) is installed in the shell (6), and the sound and light alarm (10) is connected to the control chip (11) and the UPS power supply (12) through cables.

8. The inductive latching structure of a high-voltage power distribution cabinet according to claim 4, characterized in that, The locking grounding device is further provided.

9. The inductive latching structure of a high-voltage switchgear cabinet according to claim 8, characterized in that, The locking grounding device comprises a striker (15), an external grounding wire (16) and a grounding plate (18), the striker (15) is fixedly connected to the locking head (9) and can move up and down with the locking head (9), the grounding plate (18) is fixedly arranged on the cabinet body (1), the end of the grounding plate (18) is arranged directly below the striker (15), and the grounding plate (18) is connected to the grounding device of the cabinet body (1) through the external grounding wire (16).

10. The inductive latching structure of a high-voltage switchgear cabinet according to claim 9, characterized in that, The cabinet body (1) is provided with a threading hole for the external grounding wire (16) to pass through, and an insulating sleeve II (17) is arranged in the threading hole of the external grounding wire (16).

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