Electrical control cabinet with electric shock prevention structure

By combining Hall effect sensors and microswitches, the problem of real-time power outage during maintenance of electrical control cabinets is solved, ensuring safety and reliability and reducing the risk of electric shock.

CN224418208UActive Publication Date: 2026-06-26WUHAN HAIZHUO INTELLIGENT CONTROL ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN HAIZHUO INTELLIGENT CONTROL ELECTRIC CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When adjusting the position of the internal shelves or performing maintenance, the existing electrical control cabinet requires manual power-off, which makes it difficult to achieve real-time power-off protection and poses a risk of electric shock.

Method used

The system uses a Hall effect sensor and a micro switch to automatically cut off the main circuit by sliding the shelf and triggering the micro switch. The Hall effect sensor also monitors leakage current in real time and issues an alarm to ensure safe power-off.

Benefits of technology

It enables automatic power cut-off during maintenance operations, reducing the risk of electric shock and improving equipment safety and operational reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224418208U_ABST
Patent Text Reader

Abstract

The utility model discloses an electrical control cabinet with anti-electric shock structure belongs to electrical control cabinet technical field. The utility model discloses a cabinet body, the both ends of cabinet body are hinged with the cabinet door, is installed with hall effect sensor on the cabinet door, is equipped with the heat dissipation hole on cabinet body outer wall both sides, the both sides of cabinet body inner wall are installed with micro -switch, four corner places of cabinet body inner wall all install the adjusting plate, and a row of mounting hole is equipped on the adjusting plate, and the mounting hole is connected through bolt thread connection shelf. The utility model discloses through hall effect sensor, micro -switch, adjusting plate and shelf cooperation, through the automatic cut -off main circuit of micro -switch of shelf sliding time trigger, ensure the safe operation of overhaul, through hall effect sensor real -time monitoring leakage current and timely alarm, avoid the risk of electric shock in advance, reduce accidental electric shock possibility, improve equipment safety and operation reliability.
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Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinet technology, specifically to an electrical control cabinet with an anti-electric shock structure. Background Technology

[0002] Electrical control cabinets are mainly used in industrial production, power systems, automation control and other scenarios to integrate and install various electrical components and realize circuit control functions.

[0003] When adjusting the position of the internal shelves or performing maintenance, the existing electrical control cabinet requires manual operation of the power-off device. The power-off operation relies on manual judgment and execution, making it difficult to achieve real-time power-off protection and posing a certain risk of electric shock. Utility Model Content

[0004] The purpose of this utility model is to provide an electrical control cabinet with an anti-electric shock structure. Through the cooperation of Hall effect sensors, micro switches, adjustment plates and shelves, the micro switches are automatically cut off when the shelves slide, ensuring the safety of maintenance operations. The Hall effect sensors monitor leakage current in real time and provide timely alarms, avoiding the risk of electric shock in advance, reducing the possibility of accidental electric shock, and improving the safety and reliability of equipment operation.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is an electrical control cabinet with an anti-electric shock structure, including a cabinet body, cabinet doors hinged to both ends of the cabinet body, Hall effect sensors installed on the cabinet doors, heat dissipation holes on both sides of the outer wall of the cabinet body, micro switches installed on the upper and lower parts of the inner wall of the cabinet body, and adjustment plates installed at the four corners of the inner wall of the cabinet body. A row of mounting holes is opened on the adjustment plates, and the mounting holes are connected to the shelves by bolt threads.

[0007] Furthermore, the cabinet is rectangular with openings at both ends, and cabinet doors are connected to both openings by hinges. The size of the cabinet doors matches the size of the openings at one end of the cabinet.

[0008] Furthermore, a sealing ring is provided on the side of the cabinet door near the cabinet body, and the outer side of the sealing ring is set against one end of the cabinet opening. There are two Hall effect sensors, which are respectively installed opposite each other on one side of the inner wall of the two cabinet doors.

[0009] Furthermore, the adjustment plates are arranged in a "U"-shaped bent plate shape, with the tops of the four adjustment plates vertically set on the bottom surface of the inner wall of the cabinet, and there is a gap between the top of the adjustment plates and the top surface of the inner wall of the cabinet.

[0010] Furthermore, the shelf has extension plates at both ends, and through holes are formed on both sides of the extension plates. Bolts are inserted through the through holes and mounting holes on the shelf in sequence. There are two shelves, which are arranged parallel to each other on the adjustment plate. Two microswitches are respectively positioned on the outside of the extension plates of the two shelves.

[0011] This utility model has the following beneficial effects:

[0012] This invention utilizes a Hall effect sensor, a micro switch, an adjustment plate, and a shelf to automatically cut off the main circuit when the shelf slides, ensuring safe maintenance operations. The Hall effect sensor monitors leakage current in real time and provides timely alarms, thus preventing the risk of electric shock, reducing the possibility of accidental electric shock, and improving equipment safety and operational reliability.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the electrical control cabinet;

[0015] Figure 2 This is a schematic diagram of the internal structure of the electrical control cabinet;

[0016] Figure 3 A structural schematic diagram of the adjusting plate, mounting holes, and shelf;

[0017] Figure 4 This is a structural diagram of the cabinet, ventilation holes, and micro switches.

[0018] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Hall effect sensor; 4. Heat dissipation hole; 5. Micro switch; 6. Adjustment plate; 7. Mounting hole; 8. Shelf. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: an electrical control cabinet with an anti-electric shock structure, including a cabinet body 1. The inner wall of the cabinet body 1 is coated with a thick epoxy resin insulating coating. Cabinet doors 2 are hinged to both ends of the cabinet body 1. The cabinet doors 2 adopt a double-layer structure, with the inner layer being a stainless steel plate and a thick metal shielding mesh embedded between the two layers. The cabinet body 1 is a rectangular cabinet with openings at both ends. Cabinet doors 2 are connected to both openings of the cabinet body 1 by hinges. The size of the cabinet doors 2 matches the size of the opening at one end of the cabinet body 1. Hall effect sensors 3 are installed on the cabinet doors 2. A sealing ring is provided on the side of the cabinet door 2 near the cabinet body 1. The outer side of the sealing ring abuts against the opening end of the cabinet body 1. There are two Hall effect sensors 3. The two Hall effect sensors 3 are respectively installed opposite each other on one side of the inner wall of the two cabinet doors 2. The Hall effect sensor 3 is model ACS758LCB-050B-PFF-T, which monitors leakage current in real time with an accuracy of 0.1mA. When the threshold of 30mA is exceeded, an audible and visual alarm is triggered. Heat dissipation holes 4 are opened on both sides of the outer wall of the cabinet body 1.

[0021] Microswitches 5, model V-155-1C25, are installed on both the upper and lower parts of the inner wall of cabinet 1. Adjustment plates 6 are installed at the four corners of the inner wall of cabinet 1. The adjustment plates 6 are U-shaped bent plates. The tops of the four adjustment plates 6 are vertically set on the bottom surface of the inner wall of cabinet 1. There is a gap between the top of the adjustment plate 6 and the top surface of the inner wall of cabinet 1, through which the shelf 8 can be removed. A row of mounting holes 7 are opened on the adjustment plate 6. The mounting holes 7 are connected to the shelf 8 by bolt threads. The shelf 8 is made of FR-4 insulating board with a 0.3mm thick conductive rubber pad pasted on the surface. There are extension plates at both ends of the shelf 8. There are through holes on both sides of the extension plates. The bolts pass through the through holes and mounting holes 7 in sequence. There are two shelves 8. The two shelves 8 are set parallel to each other on the adjustment plate 6. The two microswitches 5 are respectively set against the outside of the extension plates of the two shelves 8. An initial gap of 1.0mm is reserved between the contact of the microswitch 5 and the outside of the extension plate of the shelf 8.

[0022] First, connect an external power source to the electrical equipment in this device. Place the device in the designated working position. During normal operation, the shelf 8 is fixed to the mounting hole 7 of the adjusting plate 6 with bolts. The extension plate and the micro switch 5 maintain a 1.0mm gap, and the circuit is connected. When maintenance and disassembly work is required inside the electrical control cabinet, loosen the bolts to allow the shelf 8 to slide along the adjusting plate 6. The extension plate moves with the shelf 8 and touches the contact of the micro switch 5, triggering the normally closed contact of the switch to open, cutting off the main circuit and realizing power failure. In addition, the leakage current is monitored in real time by the Hall effect sensor 3. When it exceeds the 30mA threshold, an audible and visual alarm is triggered. The sealing ring of the cabinet door 2 enhances the sealing performance, and the insulating coating and shielding mesh improve the overall anti-electric shock performance.

[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electrical control cabinet with an anti-electric shock structure, comprising a cabinet body (1), characterized in that: The cabinet (1) is hinged to cabinet doors (2) at both ends. Hall effect sensors (3) are installed on the cabinet doors (2). Heat dissipation holes (4) are opened on both sides of the outer wall of the cabinet (1). Micro switches (5) are installed on the upper and lower parts of the inner wall of the cabinet (1). Adjustment plates (6) are installed at the four corners of the inner wall of the cabinet (1). A row of mounting holes (7) is opened on the adjustment plate (6). The mounting holes (7) are connected to the shelf (8) by bolt thread.

2. An electrical control cabinet with an anti-electric shock structure according to claim 1, characterized in that, The cabinet (1) is a rectangular cabinet with openings at both ends. Both openings of the cabinet (1) are connected to cabinet doors (2) by hinges. The size of the cabinet doors (2) matches the size of the opening at one end of the cabinet (1).

3. An electrical control cabinet with an anti-electric shock structure according to claim 1, characterized in that, A sealing ring is provided on the side of the cabinet door (2) near the cabinet body (1), and the outer side of the sealing ring is abutted against one end of the opening of the cabinet body (1). There are two Hall effect sensors (3), and the two Hall effect sensors (3) are respectively installed opposite each other on one side of the inner wall of the two cabinet doors (2).

4. An electrical control cabinet with an anti-electric shock structure according to claim 1, characterized in that, The adjustment plate (6) is arranged in a "U" shaped bent plate shape. The tops of the four adjustment plates (6) are vertically arranged on the bottom surface of the inner wall of the cabinet (1). There is a gap between the top of the adjustment plate (6) and the top surface of the inner wall of the cabinet (1).

5. An electrical control cabinet with an anti-electric shock structure according to claim 1, characterized in that, The shelf (8) has extension plates at both ends, and through holes are formed on both sides of the extension plates. Bolts pass through the through holes and mounting holes (7) on the shelf (8) in sequence. There are two shelves (8), and the two shelves (8) are arranged parallel to each other on the adjustment plate (6). The two micro switches (5) are respectively abutted against the outside of the extension plates of the two shelves (8).