CN219123712U

CN219123712U - Power distribution cabinet with automatic power-off assembly

Info

Publication number: CN219123712U
Application number: CN202223336945.XU
Authority: CN
Inventors: 李福生; 刘洋; 常贵生
Original assignee: Heilongjiang Bohang Technology Co ltd
Current assignee: Heilongjiang Bohang Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-02
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a power distribution cabinet with an automatic power-off component, which relates to the field of power distribution cabinets and aims to solve the technical problem that the existing power distribution cabinet does not have an automatic power-off function and is easy to burn out by overvoltage.

Description

Power distribution cabinet with automatic power-off assembly

Technical Field

The utility model belongs to the field of power distribution cabinets, and particularly relates to a power distribution cabinet with an automatic power-off assembly.

Background

The switch board generally includes the cabinet body, installs at the internal circuit breaker of cabinet and the mounting panel that supports the circuit breaker, and the use of switch board is generally 24 hours incessant operation throughout the year, leads to the operation of electrical component high load in the switch board, and its input voltage's stability has very high influence to the operation safety of equipment, and the switch board of present does not have the overvoltage power-off protection function to the voltage of input power, in case take place overvoltage phenomenon, the circuit in the switch board is very easy to burn out.

The utility model patent of China of current bulletin number CN205407025U, its disclosed an automatic outage switch board, including the cabinet body, install at the internal circuit breaker of cabinet and support the mounting panel of circuit breaker, cabinet body lateral wall is equipped with smoke transducer, controller, and cabinet body top is equipped with extinguishing device, smoke transducer, extinguishing device and circuit breaker connect the controller respectively, the mounting panel upper surface has set gradually insulating layer, buffer layer. According to the utility model, the smoke sensor is used for detecting the smoke in the power distribution cabinet, the controller is used for controlling the fire extinguisher to realize automatic fire extinguishing, and the controller is used for controlling the circuit breaker to be powered off to realize automatic power off and alarm, so that the power distribution cabinet is safer to use; the heat insulation layer and the shock absorption layer are arranged on the mounting plate at the bottom of the circuit breaker, so that noise is reduced; waterproof damping device through installing at cabinet body bottom realizes the waterproof shock attenuation of switch board.

Therefore, the novel power distribution cabinet is developed aiming at the condition that the power distribution cabinet does not have an automatic power-off function and is easy to burn out by overvoltage, and the automatic power-off assembly convenient and fast to assemble is connected with the input power supply of the power distribution cabinet to achieve the overvoltage protection effect on electrical equipment and circuits in the power distribution cabinet.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a power distribution cabinet with an automatic power-off assembly, which aims to solve the technical problems that the existing power distribution cabinet does not have an automatic power-off function and is easy to burn out due to overvoltage.

(2) Technical proposal

In order to solve the technical problems, the utility model provides a power distribution cabinet with an automatic power-off assembly, which comprises a base, a U-shaped cabinet frame arranged at the upper end of the base, and the automatic power-off assembly arranged on the inner wall of the upper end of the cabinet frame, wherein an assembly groove with a T-shaped cross section is formed in the inner wall of the top end of the cabinet frame, a locking hole communicated with the assembly groove is formed in the upper end of the cabinet frame, an assembly seat with the shape matched with that of the assembly groove is fixedly connected to the upper end of the automatic power-off assembly, the assembly seat is arranged on the inner side of the assembly groove, a locking bolt is arranged in a hole groove in the middle of the assembly seat, a first spring is fixedly connected to the inner side of the hole groove in the middle of the locking bolt, and the upper end of the locking bolt is arranged on the inner side of the locking hole.

When the power distribution cabinet with the automatic power-off assembly is used, a user inserts the cabinet frame on the base vertically through the card and the bayonet, then screws the bolt into the screw hole to lock the base and the cabinet frame, then the locking bolt is pushed inwards into the hole groove of the assembly seat, then the assembly seat is horizontally aligned with the front end of the assembly groove to horizontally insert and move until the locking bolt appears at the lower side of the locking hole, the locking bolt is pushed out into the locking hole to firmly lock the assembly seat in the assembly groove, at the moment, the automatic power-off assembly is assembled on the inner wall of the top end of the cabinet frame, then the automatic power-off assembly is connected with a power supply cable penetrating through the threading opening, and then the input end of the automatic power-off assembly is connected with electrical equipment in the power distribution cabinet.

Further, a plurality of vents have been seted up to the base front end, the fan is installed to the base inboard, the base upper end is provided with the installing port, the inboard fixed mounting of installing port has wire mesh, and the fan outwards takes out the heat that electrical equipment operation produced in the switch board through the vent, improves the heat dispersion of switch board, utilizes the dust impurity in the isolated environment of wire mesh.

Further, the lower extreme fixedly connected with card of cabinet frame left and right sides, both ends all offer about the base with the bayonet socket of card shape adaptation, the card set up in the bayonet socket is inboard, in the middle of the card with the screw has all been offered in the middle of the bayonet socket, screw inboard threaded connection has the bolt, assembles through the screw in of bolt between cabinet frame and the base, and it is simple swift to install and remove, the maintenance of being convenient for.

Further, the inner wall of the cabinet frame is provided with a liner, the rear end of the cabinet frame is provided with a threading opening for threading the wiring of the automatic power-off assembly and a power connection wire, the liner is made of flexible heat-resistant fabric materials, the internal electrical equipment is isolated from the cabinet frame made of hard materials, the rear end of the cabinet frame is clung to a wall, and the power supply wire penetrates the cabinet frame from the threading opening and is connected with the automatic power-off assembly.

Further, the U-shaped hand support is fixedly arranged at the upper end of the cabinet frame, a through hole which is positioned on the same longitudinal axis with the locking hole is formed in the middle of the upper end of the hand support, an extrusion column is arranged on the inner side of the through hole, and a user presses the extrusion column downwards by hand to enable the user to longitudinally move the extrusion locking bolt, so that the limiting effect between the extrusion locking bolt and the locking hole is relieved.

Further, the upper end of the extrusion column is fixedly connected with a limiting piece with the diameter larger than the diameter of the through hole, a second spring is fixedly connected between the lower end of the limiting piece and the upper end of the hand support, the second spring is arranged on the outer side of the extrusion column, the second spring has elastic extension function, the limiting piece is automatically jacked upwards, and the extrusion column is far away from the locking hole.

Further, locking bolt upper end fixedly connected with sealing washer, the sealing washer set up in the locking hole upside, the extrusion post set up in the sealing washer upside, when locking bolt vertical insertion locking downthehole, the sealing washer closely laminates at locking hole and locking bolt outer wall, shutoff gap plays waterproof dustproof effect.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the power distribution cabinet with the automatic power-off assembly adopts the automatic power-off assembly assembled with the inner wall of the power distribution cabinet body, plays an overload protection role on the input voltage of the power distribution cabinet, and timely closes the circuit of electric equipment in the power distribution cabinet so as to achieve the purpose of protecting the electric equipment; the automatic power-off assembly is horizontally meshed and fixed by adopting a T-shaped structure between the assembly groove and the assembly seat, and is simple and quick to install and detach and convenient to use; the power distribution cabinet is convenient to disassemble and maintain through the combined structure of the base and the cabinet frame, and the fan equipment is arranged in the base to pump out hot air in the power distribution cabinet, so that a radiating effect is achieved.

Drawings

FIG. 1 is a schematic diagram of an assembled structure of an embodiment of a power distribution cabinet with an automatic power-off assembly of the present utility model;

FIG. 2 is a schematic view of a base structure of an embodiment of a power distribution cabinet with an automatic power-off assembly according to the present utility model;

FIG. 3 is a schematic block diagram of an embodiment of a power distribution cabinet with an automatic power down assembly according to the present utility model;

fig. 4 is a schematic structural diagram of an automatic power-off assembly according to an embodiment of the power distribution cabinet with the automatic power-off assembly of the present utility model.

The marks in the drawings are: 1. a base; 2. a cabinet frame; 3. an assembly groove; 4. a locking hole; 5. an assembly seat; 6. an automatic power-off assembly; 7. a locking bolt; 8. a first spring; 9. a vent; 10. a blower; 11. a mounting port; 12. a wire mesh; 13. a card; 14. a bayonet; 15. a screw hole; 16. a bolt; 17. a gasket; 18. a threading opening; 19. a hand rest; 20. a through hole; 21. an extrusion column; 22. a limiting piece; 23. a second spring; 24. and (3) sealing rings.

Detailed Description

This embodiment is a switch board for having automatic power-off assembly, and its package structure schematic diagram is shown in fig. 1, and base 1 structure schematic diagram is shown in fig. 2, and cabinet frame 2 structure schematic diagram is shown in fig. 3, and automatic power-off assembly 6 structure schematic diagram is shown in fig. 4, this switch board include base 1, install in U type cabinet frame 2 of base 1 upper end, set up in automatic power-off assembly 6 of cabinet frame 2 upper end inner wall, the mounting groove 3 of T type cross-section has been seted up to cabinet frame 2 top inner wall, the locking hole 4 with mounting groove 3 intercommunication has been seted up to cabinet frame 2 upper end, automatic power-off assembly 6 upper end fixedly connected with mounting seat 5 of mounting groove 3 shape adaptation, mounting seat 5 set up in mounting groove 3 inboard, be provided with locking bolt 7 in the hole inslot in the middle of mounting seat 5, locking bolt 7 lower extreme with the hole inslot fixedly connected with spring 8 in the middle of mounting seat 5, locking bolt 7 upper end set up in the inside of locking hole 4.

For the specific implementation, the automatic power-off assembly 6 is directly and electrically connected with an input power supply of the power distribution cabinet, and comprises a piezoresistor and a fuse, wherein the model of the piezoresistor is 20D431K, the model of the fuse is T5A/250V, the piezoresistor is connected between a phase line and a zero line of the power supply of the power distribution cabinet in parallel, the fuse is connected between the phase line and the piezoresistor of the power supply in series, the piezoresistor is connected with an input end of a common-mode inductor of 1mH in parallel, an output end of the common-mode inductor is connected with a control circuit, the control circuit comprises a control chip, a main capacitor, a resistor, four groups of diodes, two groups of switching tubes and an electrolytic capacitor, a VCC pin of the control chip is electrically connected with an output end of the common-mode inductor of the power supply, the main capacitor is connected in parallel between the VIN pin and the VCC pin of the control chip, the DRV pin and the switching tube of the control chip are electrically connected to drive, the two groups of switching tubes are respectively connected in series to the output end of the common-mode inductor, the control chip is a high-voltage detection circuit chip, the input voltage of a power supply of the power distribution cabinet can be monitored in real time, once overvoltage input interference occurs, the power supply can be cut off through the switching tube to be input into the power distribution cabinet, and thus, the internal devices of the power distribution cabinet and the high-voltage interference outside can be isolated, the electrical equipment in the power distribution cabinet is protected, the cabinet body safety of the whole power distribution cabinet is also protected, and the specific installation and use modes can refer to the Chinese patent with the publication number of CN 217063255U.

The electric cabinet comprises a base 1, a fan 10 is arranged on the inner side of the base 1, an installation port 11 is formed in the upper end of the base 1, a wire mesh 12 is fixedly installed on the inner side of the installation port 11, a card 13 is fixedly connected to the lower ends of the left side and the right side of a cabinet frame 2, bayonets 14 matched with the card 13 in shape are formed in the left side and the right side of the base 1, the card 13 is arranged on the inner side of the bayonets 14, screw holes 15 are formed in the middle of the card 13 and the middle of the bayonets 14, bolts 16 are connected to the inner sides of the screw holes 15 in a threaded manner, gaskets 17 are arranged on the inner wall of the cabinet frame 2, a threading port 18 for penetrating through a wiring of an automatic power-off assembly 6 and a power connection wire is formed in the rear end of the cabinet frame 2, heat generated by operation of electric equipment in the electric cabinet is outwards pulled out through the wires 9, the fan 10, the heat dissipation capacity of the electric cabinet is improved, dust impurities in the environment are isolated by using the wire mesh 12 are utilized, the cabinet frame 2 and the base 1 are assembled by screwing in the bolts 16, the cabinet frame 2 is easy and fast, the maintenance is convenient, the gaskets 17 are convenient, the inner side of the wiring of the flexible gaskets are connected to the wire assembly, and the wire frame 2 is tightly connected with the power-supply frame 2, and the power-supplying equipment is tightly connected to the power supply frame 2, and the power supply frame 18, and the power supply frame is tightly connected to the power supply frame 2, and the power supply equipment is connected to the power supply frame 18.

Meanwhile, a U-shaped hand support 19 is fixedly arranged at the upper end of the cabinet frame 2, a through hole 20 which is positioned on the same longitudinal axis with the locking hole 4 is formed in the middle of the upper end of the hand support 19, an extrusion column 21 is arranged at the inner side of the through hole 20, a limiting piece 22 with the diameter larger than that of the through hole 20 is fixedly connected to the upper end of the extrusion column 21, a second spring 23 is fixedly connected between the lower end of the limiting piece 22 and the upper end of the hand support 19, the second spring 23 is arranged on the outer side of the extrusion column 21, a sealing ring 24 is fixedly connected to the upper end of the locking bolt 7, the sealing ring 24 is arranged on the upper side of the locking hole 4, the extrusion column 21 is arranged on the upper side of the sealing ring 24, the extrusion column 21 is pressed downwards by hands of a user, the user longitudinally moves to extrude the locking bolt 7, the limiting piece 22 is automatically lifted upwards, the extrusion column 21 is far away from the locking hole 4, the locking bolt 7 is vertically inserted into the locking hole 4, and the sealing ring 24 is tightly adhered to the locking hole 7 when the locking bolt 4 is tightly sealed by the sealing ring, and the sealing ring 7 is tightly sealed by the sealing ring.

When the power distribution cabinet with the automatic power-off assembly is used, a user inserts the cabinet frame 2 on the base 1 vertically through the card 13 and the bayonet 14, then screws the bolt 16 into the screw hole 15 to lock the base 1 and the cabinet frame 2, then the locking bolt 7 is pushed inwards into the hole groove of the assembly seat 5, then the assembly seat 5 is horizontally aligned with the front end of the assembly groove 3 to be horizontally inserted and moved until the locking bolt 7 appears on the lower side of the locking hole 4 and is subjected to the elastic extension action of the first spring 8, the locking bolt 7 is ejected into the locking hole 4, the assembly seat 5 is firmly locked in the assembly groove 3, at the moment, the automatic power-off assembly 6 is assembled on the inner wall of the top end of the cabinet frame 2, then the automatic power-off assembly 6 is connected with a power supply cable penetrating through the threading opening 18, and the input end of the automatic power-off assembly 6 is connected with electrical equipment in the cabinet.

Claims

1. The power distribution cabinet comprises a base, a U-shaped cabinet frame arranged at the upper end of the base, and an automatic power-off assembly arranged on the inner wall of the upper end of the cabinet frame; the automatic power-off assembly is characterized in that an assembly groove with a T-shaped cross section is formed in the inner wall of the top end of the cabinet frame, a locking hole communicated with the assembly groove is formed in the upper end of the cabinet frame, an assembly seat matched with the shape of the assembly groove is fixedly connected to the upper end of the automatic power-off assembly, the assembly seat is arranged on the inner side of the assembly groove, a locking bolt is arranged in a hole groove in the middle of the assembly seat, a first spring is fixedly connected to the lower end of the locking bolt and the inner side of the hole groove in the middle of the assembly seat, and the upper end of the locking bolt is arranged on the inner side of the locking hole.

2. The power distribution cabinet with the automatic power-off assembly according to claim 1, wherein a plurality of ventilation openings are formed in the front end of the base, a fan is installed on the inner side of the base, a mounting opening is formed in the upper end of the base, and a wire mesh is fixedly installed on the inner side of the mounting opening.

3. The power distribution cabinet with the automatic power-off assembly according to claim 1, wherein the lower ends of the left side and the right side of the cabinet frame are fixedly connected with cards, bayonets matched with the shapes of the cards are formed in the left end and the right end of the base, the cards are arranged on the inner sides of the bayonets, screw holes are formed in the middle of the cards and the middle of the bayonets, and bolts are connected with the inner sides of the screw holes in a threaded mode.

4. The power distribution cabinet with automatic power-off assembly according to claim 3, wherein a gasket is arranged on the inner wall of the cabinet frame, and a threading opening for threading a wiring and a power connection wire of the automatic power-off assembly is formed in the rear end of the cabinet frame.

5. The power distribution cabinet with the automatic power-off assembly according to claim 1, wherein a U-shaped hand rack is fixedly arranged at the upper end of the cabinet frame, a through hole which is positioned on the same longitudinal axis as the locking hole is formed in the middle of the upper end of the hand rack, and an extrusion column is arranged inside the through hole.

6. The power distribution cabinet with the automatic power-off assembly according to claim 5, wherein the upper end of the extrusion column is fixedly connected with a limiting piece with a diameter larger than that of the through hole, a second spring is fixedly connected between the lower end of the limiting piece and the upper end of the hand rest, and the second spring is arranged outside the extrusion column.

7. The power distribution cabinet with automatic power-off assembly according to claim 5, wherein a sealing ring is fixedly connected to the upper end of the locking bolt, the sealing ring is arranged on the upper side of the locking hole, and the extrusion column is arranged on the upper side of the sealing ring.