Low-voltage power distribution cabinet with electric leakage early warning mechanism

Abstract

The utility model relates to the technical field of low-voltage power distribution cabinets, and discloses a low-voltage power distribution cabinet with an electric leakage early warning mechanism, which comprises a mounting bottom plate, a cabinet body and an electronic element, a metal plate is fixed at the lower position of the side edge of the inner wall of the cabinet body, and an alarm is assembled at the position, above a mounting cover, of the side edge of the cabinet body. According to the utility model, the metal plate is fixed at the lower position of the inner wall of the cabinet body, the wiring port is assembled at the side edge position of the cabinet body, the wiring port is flush with the wiring hole, and the circuit is butted and contacted at the position of the wiring hole, so that the metal plate is conductive when the circuit leaks electricity, and the tail end reaches the position of a connecting wire for connection under the wiring of a lead; current is transmitted by the connecting line, the lead and the resistor to form a circuit, and finally, the bulb is lightened under the transmission of the current, so that the bulb is lightened during electric leakage, a worker can observe at the transparent end, and the alarm starts to give an audible alarm, thereby improving the electric leakage early warning capability in the working process.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage distribution cabinet technology, specifically a low-voltage distribution cabinet with a leakage current warning mechanism. Background Technology

[0002] Low-voltage switchgear, also known as low-voltage switch cabinet, is an important piece of equipment used in low-voltage power systems. It is mainly responsible for controlling, protecting and distributing electrical energy. It is widely used in power users such as power plants, substations, and power departments of industrial and mining enterprises. Low-voltage switchgear is characterized by its small size, light weight, compact structure and convenient installation and use. It is a key piece of equipment to ensure the safe and stable operation of the power system.

[0003] The main components of a low-voltage distribution cabinet include circuit breakers, disconnect switches, load switches, operating mechanisms, instrument transformers, and various protection devices. These components work together to ensure the normal operation and safety of the power system. However, low-voltage distribution cabinets have many internal components, and leakage may occur after prolonged use. Therefore, there are potential safety hazards when personnel open the distribution cabinet for operation. Utility Model Content

[0004] The purpose of this utility model is to provide a low-voltage distribution cabinet with a leakage warning mechanism to solve the problem mentioned in the background art that the low-voltage distribution cabinet has many internal components and leakage occurs after long-term use, so there is a risk of safety when personnel open the distribution cabinet for operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage distribution cabinet with a leakage current warning mechanism, comprising a mounting base plate, a cabinet body, and electronic components. A metal plate is fixed at the lower part of the inner wall side of the cabinet body, and a wiring hole is provided in the metal plate. A wiring port is fixed at the side of the cabinet body flush with the wiring hole, and a wire is fixed on the inner wall of the wiring hole. A mounting cover is fixedly installed on the side of the cabinet body above the wiring port. Mounting plates for connecting and installing with the cabinet body are fixed at the upper and lower positions of the side of the mounting cover. A transparent end is fixed on the inner side of the mounting cover. A connecting wire is arranged inside the mounting cover. The tail end of the wire is electrically connected to the side of the connecting wire. A resistor is electrically connected to the side of the connecting wire. A light bulb is electrically connected to the side of the resistor. An alarm is installed on the side of the cabinet body above the mounting cover.

[0006] As a further technical solution of this utility model, the mounting plate is symmetrically distributed about the central axis of the mounting cover, and mounting holes are provided on the mounting plate. The mounting plate is fixed to the cabinet by bolts passing through the mounting holes.

[0007] As a further technical solution of this utility model, the transparent end is transparent, and the alarm is fixedly installed on the side of the cabinet with bolts.

[0008] As a further technical solution of this utility model, the bottom of the mounting base plate is coated with insulating adhesive, and an insulating mat is bonded and fixed to the outer wall of the insulating adhesive.

[0009] As a further technical solution of this utility model, a grounding wire for grounding is connected to the side of the cabinet, and a back plate is fixed on the back wall inside the cabinet, with electronic components fixedly assembled on the front end of the back plate.

[0010] As a further technical solution of this utility model, the inner wall of the cabinet is fixed with assembly plates on both sides, and a regular plate is fixed between the upper and lower assembly plates with bolts.

[0011] As a further technical solution of this utility model, the regular plate is provided with reserved grooves evenly distributed inside, and protective pads are fixed on the inner walls of the reserved grooves.

[0012] As a further technical solution of this utility model, a shaft is installed on the front end face of the regularizing plate in the direction to the left of the reserved groove, a shielding strip is arranged on the front end face of the reserved groove, a through hole is opened in one end of the shielding strip, the shaft is inserted into the through hole, a strip groove is opened in the other end of the shielding strip, and a round cap nail is fixed on the front end face of the regularizing plate in the direction to the right of the reserved groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the low-voltage distribution cabinet with leakage warning mechanism not only improves the warning capability, but also improves the bottom protection capability and wiring capability of the low-voltage distribution cabinet.

[0014] (1) By fixing the metal plate to the lower part of the inner wall of the cabinet and assembling the wiring port on the side of the cabinet, the wiring port and the wiring hole are flush with each other, and the wires are in contact at the wiring hole. Therefore, when the wires leak, the metal plate is conductive. Under the connection of the wires, and the end reaches the connection of the connecting wire, the current is transmitted through the connecting wire, the wire, and the resistor to form a circuit. Finally, under the transmission of the current, the bulb lights up. Therefore, when there is a leakage, the bulb lights up, and the staff can observe from the transparent end. At the same time, the alarm starts to sound, thus improving the leakage warning capability during the work process.

[0015] (2) By applying insulating glue to the bottom of the mounting base, the insulating mat is glued and fixed to the outer wall of the bottom of the insulating glue. Therefore, when the cabinet is supported vertically, the insulating mat at the bottom can form insulation protection. At the same time, a grounding wire is installed on the side of the cabinet. The grounding wire is connected to the wiring to achieve the purpose of insulation protection, which improves the overall bottom protection capability.

[0016] (3) By installing and fixing the assembly plate on both sides of the inner wall of the cabinet, the upper and lower assembly plates are fixed to the regular plate with bolts, and the reserved slots are evenly opened in the regular plate. The protective pads are fixed on the inner wall of the reserved slots. Therefore, the lines are separated and regular in the reserved slots and protected by the protective pads. Then, the shielding strip is covered on the front end of the reserved slots and locked by the round cap nail and the strip groove. In this way, the overall wiring ability is improved in the working process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a partial front view of the structure of the regular plate of this utility model;

[0019] Figure 3 This is a partial front sectional view of the cabinet structure of this utility model;

[0020] Figure 4 This is a front view cross-sectional structural diagram of the mounting cover of this utility model.

[0021] In the diagram: 1. Mounting base plate; 2. Insulating adhesive; 3. Insulating floor mat; 4. Cabinet; 5. Metal plate; 6. Back panel; 7. Electronic components; 8. Organizing plate; 9. Grounding wire; 10. Reserved groove; 11. Protective pad; 12. Round cap nail; 13. Strip groove; 14. Shielding strip; 15. Shaft; 16. Assembly plate; 17. Wire; 18. Alarm; 19. Mounting cover; 20. Transparent end; 21. Wiring port; 22. Wiring hole; 23. Resistor; 24. Light bulb; 25. Connecting wire; 26. Mounting plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This utility model provides an embodiment of a low-voltage distribution cabinet with a leakage current warning mechanism, comprising a mounting base plate 1, a cabinet body 4, and electronic components 7. A metal plate 5 is fixed at the lower part of the inner wall side of the cabinet body 4, and a wiring hole 22 is provided in the metal plate 5. A wiring port 21 is fixed at the side of the cabinet body 4 at the same level as the wiring hole 22. A wire 17 is fixed on the inner wall of the wiring hole 22. A mounting cover 19 is fixedly installed on the side of the cabinet body 4 above the wiring port 21. Mounting plates 26 for connecting and installing with the cabinet body 4 are fixed at the upper and lower positions of the side of the mounting cover 19. A transparent end 20 is fixed on the inner side of the mounting cover 19. A connecting wire 25 is arranged inside the mounting cover 19. The tail end of the wire 17 is electrically connected to the side of the connecting wire 25. A resistor 23 is electrically connected to the side of the connecting wire 25. A light bulb 24 is electrically connected to the side of the resistor 23. An alarm 18 is assembled on the side of the cabinet body 4 above the mounting cover 19.

[0024] The mounting plates 26 are symmetrically distributed about the central axis of the mounting cover 19. Mounting holes are provided on the mounting plates 26, and the mounting plates 26 are fixed to the cabinet 4 by bolts passing through the mounting holes.

[0025] The transparent end 20 is transparent, and the alarm 18 is fixedly installed on the side of the cabinet 4 with bolts.

[0026] The bottom of the mounting base plate 1 is coated with insulating adhesive 2, and an insulating mat 3 is adhered and fixed to the outer wall of the insulating adhesive 2.

[0027] A grounding wire 9 for grounding is connected to the side of the cabinet 4. A back plate 6 is fixed on the back wall inside the cabinet 4. Electronic components 7 are fixedly assembled on the front end of the back plate 6.

[0028] The inner walls of the cabinet 4 are fixed with assembly plates 16 on both sides, and the upper and lower assembly plates 16 are fixed with a regular plate 8 by bolts.

[0029] The regular plate 8 has evenly spaced reserved grooves 10, and protective pads 11 are fixed on the inner wall of each reserved groove 10.

[0030] A shaft 15 is installed on the front end face of the leveling plate 8 on the left side of the reserved groove 10. A shielding strip 14 is arranged on the front end face of the reserved groove 10. A through hole is opened in one end of the shielding strip 14, and the shaft 15 is inserted into the through hole. A strip groove 13 is opened in the other end of the shielding strip 14. A round cap nail 12 is fixed on the front end face of the leveling plate 8 on the right side of the reserved groove 10.

[0031] The electronic component 7 is further assembled using existing technology and wired normally. The electronic component 7 is fixedly assembled on the front end of the back plate 6. The electronic component 7 includes accessories such as circuit breakers, disconnect switches, load switches, operating mechanisms, and current transformers necessary for the operation of the low-voltage distribution cabinet.

[0032] Working principle: First, the electronic component 7 is assembled using existing technology and wired normally. Then, the upper and lower assembly plates 16 are fixed to the regular plate 8 with bolts. The reserved slots 10 are evenly opened in the regular plate 8, and the protective pads 11 are fixed on the inner wall of the reserved slots 10. Therefore, the wires are separated and regularized at the position of the reserved slots 10 and protected by the protective pads 11. Then, the shielding strip 14 is covered on the front end of the reserved slots 10, and the round cap nail 12 and the strip groove 13 are fitted and locked. The wires are connected and contacted at the position of the wiring hole 22. Therefore, when the wires leak, the metal plate 5 conducts electricity. Under the connection of the wire 17, and the tail end reaches the position of the connecting wire 25, the current is transmitted through the connecting wire 25, the wire 17, and the resistor 23 to form a circuit. Finally, under the transmission of current, the bulb 24 lights up. Therefore, when there is a leakage, the bulb 24 lights up. The staff can observe from the position of the transparent end 20. At the same time, the alarm 18 starts to sound an alarm, so that the staff can take safety measures in advance before operating the cabinet 4.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A low-voltage distribution cabinet with a leakage current warning mechanism, comprising a mounting base plate (1), a cabinet body (4), and electronic components (7), characterized in that: A metal plate (5) is fixed to the lower part of the inner wall of the cabinet (4). A wiring hole (22) is provided in the metal plate (5). A wiring port (21) is fixed to the side of the cabinet (4) at the same level as the wiring hole (22). A wire (17) is fixed to the inner wall of the wiring hole (22). A mounting cover (19) is fixed to the side of the cabinet (4) above the wiring port (21). The upper and lower parts of the side of the mounting cover (19) are fixed for connecting with the cabinet (4). The mounting plate (26) is installed, and a transparent end (20) is fixed on the inner side of the mounting cover (19). A connecting wire (25) is arranged inside the mounting cover (19). The tail end of the wire (17) is electrically connected to the side of the connecting wire (25). A resistor (23) is electrically connected to the side of the connecting wire (25). A light bulb (24) is electrically connected to the side of the resistor (23). An alarm (18) is installed on the side of the cabinet (4) above the mounting cover (19).

2. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 1, characterized in that: The mounting plate (26) is symmetrically distributed about the central axis of the mounting cover (19). The mounting plate (26) has mounting holes, and the mounting plate (26) is fixed to the cabinet (4) by bolts passing through the mounting holes.

3. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 1, characterized in that: The transparent end (20) is transparent, and the alarm (18) is fixedly installed on the side of the cabinet (4) with bolts.

4. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 1, characterized in that: The bottom of the mounting base plate (1) is coated with insulating adhesive (2), and an insulating mat (3) is bonded and fixed to the outer wall of the insulating adhesive (2).

5. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 1, characterized in that: The cabinet (4) is connected to a grounding wire (9) for grounding. A back plate (6) is fixed on the back wall inside the cabinet (4). Electronic components (7) are fixedly assembled on the front end of the back plate (6).

6. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 1, characterized in that: The cabinet (4) has assembly plates (16) fixed on both sides of its inner wall, and a regular plate (8) is fixed between the upper and lower assembly plates (16) by bolts.

7. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 6, characterized in that: The regular plate (8) is provided with reserved grooves (10) evenly distributed, and protective pads (11) are fixed on the inner wall of each reserved groove (10).

8. A low-voltage distribution cabinet with a leakage current warning mechanism according to claim 6, characterized in that: A shaft (15) is installed on the front end face of the pre-reserved groove (10) to the left. A shielding strip (14) is arranged on the front end face of the pre-reserved groove (10). A through hole is opened in one end of the shielding strip (14), and the shaft (15) is inserted into the through hole. A strip groove (13) is opened in the other end of the shielding strip (14). A round cap nail (12) is fixed on the front end face of the pre-reserved groove (10) to the right.

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