Low-voltage intelligent power distribution device for mine

Abstract

A low-voltage intelligent power distribution device for a mine comprises a power distribution box body, an isolating switch is arranged in the power distribution box body, a power inlet wire is connected with the isolating switch, a current transformer and a molded case circuit breaker are arranged below the isolating switch, and an output cable of the isolating switch penetrates through the current transformer and the molded case circuit breaker. Opening and closing of the molded case circuit breaker are controlled by an electric closing mechanism, an opening and closing button and an opening and closing indicating lamp are arranged on the distribution box body, the opening and closing button is used for manually controlling opening and closing of the molded case circuit breaker, an electrical fire monitoring detector is arranged in the distribution box body, and the output end of the electrical fire monitoring detector is electrically connected with an opening control relay. And the opening control relay is electrically connected to control fault tripping of the molded case circuit breaker. The current and the voltage of an electrical load can be effectively monitored; the device has the functions of open-phase protection, electric leakage protection, short circuit protection, overcurrent protection, temperature monitoring and early warning, and tripping. When a person and equipment approach the box body, the infrared sensor gives out a voice alarm through the infrared voice alarm to ensure the safety of the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to low -voltage power distribution technical field especially a low -voltage intelligent power distribution device for mine. BACKGROUND

[0002] CN213151378U discloses a novel on-site power distribution device, including the frame fixed in the installation surface;The frame is connected in turn from top to bottom distribution box, grounding copper bar and incoming and outgoing cable pressure clamp;The distribution box bottom is connected with the wiring pile and the quick lap joint device;The box door side is provided with a door lock;The box door surface is connected with the state monitoring, audible and visual alarm and the like indication system.

[0003] The above-mentioned device has the following defects: 1, unreliable protection: the protection in the existing distribution box mainly relies on the overload, short circuit and leakage protection of the leakage circuit breaker itself, when the breaker switch body fails, the protection is naturally lost;2, single protection: the existing distribution box only gives sound and light signals, and cannot act and trip;3, existing cable joint has hidden danger: the existing cable quick connector only relies on the clamp, which is easy to fall off, which may cause equipment phase loss, burning and other safety hazards;4, cannot remotely monitor and control the main switch and equipment operation parameters;Cannot meet the requirements of the national intelligent construction related standards for mines;5, when electrical fire or temperature overtemperature occurs, the switch cannot trip;6, single function: when people and equipment are close to the box body, voice warning cannot be carried out, and lighting cannot be provided for the working face;7, traditional manual opening and closing cannot effectively ensure the safety of electrical operation personnel. SUMMARY

[0004] The utility model wants to solve the technical problem and provides a low -voltage intelligent power distribution device for mine, the device that integrates protection, intelligent control and monitoring, electrical fire monitoring, voice sound and light alarm, working face power supply is integrated, is used in conjunction with the underground intelligent mining equipment, improves the overall equipment intelligent level, solves the risk of electric shock of electrician, operator from the equipment body;Be used with mine safety, coal safety distribution box can be widely used in coal mine, non -coal mine underground.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] The low-voltage intelligent power distribution device for mine comprises a power distribution box body, a disconnecting switch arranged in the power distribution box body, a power supply incoming line connected with the disconnecting switch, a current transformer and a molded case circuit breaker arranged below the disconnecting switch, an output cable of the disconnecting switch penetrating through the current transformer and the molded case circuit breaker, a closing and opening button and a closing and opening indicating lamp arranged on the power distribution box body, the closing and opening button being used for manually controlling the closing and opening of the molded case circuit breaker, an electrical fire monitoring detector arranged in the power distribution box body, an output end of the electrical fire monitoring detector being electrically connected with a tripping control relay, and the tripping control relay being electrically connected and used for controlling the fault tripping of the molded case circuit breaker.

[0007] The power supply incoming line enters the power distribution box body through an incoming hole at the bottom of the power distribution box body, and the power distribution box body is connected with external wires through an explosion-proof plug.

[0008] The current transformer is connected with a multifunctional instrument, the multifunctional instrument is electrically connected with a wiring end of the disconnecting switch and is used for detecting incoming line voltage, and the multifunctional instrument is provided with a communication interface and is used for communicating with the outside.

[0009] The power distribution box body is provided with a temperature and humidity controller, and the temperature and humidity controller is electrically connected with a heater at one side of the power distribution box body.

[0010] The power distribution box body is provided with an infrared sensor, the infrared sensor is connected with a voice control relay, and the voice control relay is used for controlling an infrared voice alarm.

[0011] The molded case circuit breaker is electrically connected with a transformer, and the transformer is used for supplying power to electrical appliances in the power distribution box body.

[0012] The power distribution box body is provided with a microcomputer protection device, the microcomputer protection device is electrically connected with an output end of the transformer and is used for detecting whether electrical power is normally working, and the microcomputer protection device is provided with a communication interface.

[0013] The low-voltage intelligent power distribution device for mine can effectively monitor the current and voltage of the electrical load, has the protection of open phase, electric leakage, short circuit and overcurrent, can monitor and give an early warning for temperature and trip, and can ensure the safety of the box body through the infrared voice alarm of the infrared sensor when people and equipment approach the box body. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in connection with the drawings and embodiments:

[0015] Figure 1 It is the power distribution box schematic diagram of the utility model;

[0016] Figure 2 It is the power distribution box internal structure schematic diagram;

[0017] Figure 3 is a schematic view of the bottom of the distribution box;

[0018] Figure 4 is a schematic view of the side of the distribution box Figure 1 ;

[0019] Figure 5 is a schematic view of the side of the distribution box Figure 2 ;

[0020] Figure 6 is a schematic view of the main circuit of the power distribution device;

[0021] Figure 7 is a schematic view of the control circuit of the power distribution device;

[0022] Figure 8 is a schematic view of the wiring of the multifunctional meter;

[0023] Figure 9 is a schematic view of the wiring of the microcomputer protection device.

[0024] In the figure: equipment nameplate 1, multifunctional meter 2, on-off indication lamp 3, on-off button 4, warning sign 5, infrared voice alarm 6, buzzer 7, flat lock with hanging 8, far / near control switching switch 9, infrared sensor 10, disconnecting switch 11, current transformer 12, molded case circuit breaker 13, electric closing mechanism 14, microcomputer protection device 15, grounding terminal 16, transformer 17, electrical fire monitoring detector 18, temperature and humidity controller 19, relay 20, fuse 21, control circuit switch 22, wiring terminal 23, miniature circuit breaker 24, incoming line hole 25, Gland head outgoing line hole 26, standby hole 27, explosion-proof plug 28, heater 29, incoming line hole wire card 30, mounting ear 31, large and small doors 32, distribution box body 33. DETAILED DESCRIPTION

[0025] As shown in the Figures 1-9 , a mine low-voltage intelligent power distribution device, comprising a distribution box body 33, the distribution box body 33 is provided with a disconnecting switch 11, the power supply incoming line is connected with the disconnecting switch 11, the disconnecting switch 11 is provided with a current transformer 12 and a molded case circuit breaker 13 below, the disconnecting switch 11 output cable passes through the current transformer 12 and the molded case circuit breaker 13, the on-off of the molded case circuit breaker 13 is controlled by the electric closing mechanism 14, the distribution box body 33 is provided with an on-off button 4 and an on-off indication lamp 3, the on-off button 4 is used for manually controlling the on-off of the molded case circuit breaker 13, the distribution box body 33 is provided with an electrical fire monitoring detector 18, the output end of the electrical fire monitoring detector 18 is electrically connected with a tripping control relay, and the tripping control relay is used for controlling the fault tripping of the molded case circuit breaker 13.

[0026] The power line enters the distribution box body 33 through the power line hole 25 at the bottom of the distribution box body 33, is connected through the explosion-proof plug 28, and the power line hole 25 and the explosion-proof plug 28 are explosion-proof.

[0027] The power line is disconnected from the internal circuit through the disconnector 11, so that when the power quality is problematic or fails, the components in the box body are not damaged, the electrical fire monitoring detector 18 is used to detect whether an electrical fire occurs in the box body, and the molded case circuit breaker 13 is controlled to be turned off in time to avoid the spread of the accident.

[0028] The distribution box body 33 is connected to the outside through the explosion-proof plug in the box body, so that the connection is safer and more reliable.

[0029] The current transformer 12 is connected to the multifunctional instrument 2, the multifunctional instrument 2 is electrically connected to the wiring end of the disconnector 11 for detecting the incoming line voltage, and the multifunctional instrument 2 is provided with a communication interface for communication with the outside.

[0030] The temperature and humidity controller 19 is arranged in the distribution box body 33, and the temperature and humidity controller 19 is electrically connected to the heater 29 on one side of the distribution box body 33.

[0031] The infrared sensor 10 is arranged on the distribution box body 33, the infrared sensor 10 is connected to the voice control relay, and the voice control relay is used to control the infrared voice alarm 6.

[0032] The molded case circuit breaker 13 is electrically connected to the transformer 17, and the transformer 17 is used to supply power to the electrical appliances in the distribution box body 33.

[0033] The microcomputer protection device 15 is arranged in the distribution box body 33, and the microcomputer protection device 15 is electrically connected to the output end of the transformer 17 for detecting whether the electrical power supply is working normally, and the microcomputer protection device 15 is provided with a communication interface.

[0034] Embodiment:

[0035] A power distribution device for intelligent remote control of a working face in a mine, the device integrates protection, intelligent control and monitoring, electrical fire monitoring, voice and light alarm, and face power supply into one device, is used with underground intelligent mining equipment, improves the intelligent level of the whole equipment, solves the risk of electric shock of electricians and operators from the equipment body; and is used with mine safety and coal safety distribution boxes and can be widely used in coal mines and non-coal mines.

[0036] When the incoming power supply is connected to the isolating switch 11, the isolating switch can provide an obvious disconnection point for maintenance. The current passes through the transformer 12, and the current, voltage, power factor, frequency, and electric energy can be displayed on the multifunctional instrument 2, which can also be used as an indication of the presence or absence of power supply. The leakage plastic shell circuit breaker switch 13 is opened and closed by the electric closing mechanism 14 through the button, avoiding the safety hazards caused by manual opening and closing. The protection device 15 has overcurrent, overvoltage, short circuit, open phase, and leakage protection. When the device reaches the set parameters, the main switch can automatically trip. At the same time, the protection device has a 458 communication interface that can realize remote opening and closing of the electric closing mechanism 14. The spark-proof explosion-proof socket is installed at the bottom of the power distribution device, and the plug is installed on the equipment cable. When in use, disconnect the leakage plastic shell circuit breaker switch 13 from the socket plug, and then close the power supply. The incoming and outgoing cables pass through the protection device 15, which can trip and emit an audible signal when an electrical accident such as short circuit or leakage occurs. At the same time, the residual current type electrical fire monitoring detector 18 has four temperature detectors that can monitor the temperature of the spark-proof explosion-proof socket 28 and the temperature of the dry-type transformer 17. When the temperature exceeds the set value, an audible signal is emitted and the main switch 13 trips. When people and equipment approach the box body infrared sensor 10, the infrared voice alarm 6 emits a voice alarm to ensure the safety of the box body.

[0037] The utility model discloses the advantages are: 1, complete protection: can effectively monitor the current of electric load, voltage, have the protection of short circuit, overcurrent, temperature monitoring early warning, trip of lack phase, electric leakage, 2, innovation existing cable quick -witted: select high -power quick -witted (four -in -one), and cable joint butt joint is fast, convenient, safe and effective to avoid the problem of cable heating, lack phase etc. that appears because of the joint not firm, 3, avoid damp: install intelligent dehumidifier in distribution box, can effectively prevent the problem that the component of box is damped, 4, dustproof: first, the main switch adopts the button operation on the panel of box body, and the cabinet door is divided into big and small door, can selectively open the cabinet door, try to reduce the time of opening the box door, reduce the entry of dust, second, because the opening and closing of the cabinet door, can effectively avoid the safety accident that the electrical component explodes when closing, third, the cable is fixed with the gran head of the bottom of the box, first, avoid the problem that the incoming and outgoing line is disorderly, four, the gap between cable and gran head is small, avoids the entry of dust, 5, the operation surface 36V lighting power is fused into the distribution box, need not install special transformer again in each operation surface, first, reduce the capital investment, second, standard the cleanness of operation surface, 6, the power line that leads to the mining working face has obvious breaking point, provides the security guarantee for overhaul, and the electrical fault can act main switch trip at the same time, and simultaneously send sound and light signal, 7, when the person and equipment are close to the box body, can send voice alarm, effectively guarantee the safety of equipment ontology, 8, multi -functional instrument, protection device, residual current type electrical fire monitoring detector have 485 communication interface, can realize main circuit breaker switch remote opening and closing control, and simultaneously monitor the current, voltage, temperature etc. of device online, realize intelligentization truly.

Claims

1. A low voltage intelligent power distribution device for mine use, characterized in that, The power distribution box body (33) is internally provided with a disconnecting switch (11), a power line is connected with the disconnecting switch (11), a current transformer (12) and a molded case circuit breaker (13) are arranged below the disconnecting switch (11), an output cable of the disconnecting switch (11) passes through the current transformer (12) and is connected with the molded case circuit breaker (13), the opening and closing of the molded case circuit breaker (13) is controlled by an electric closing mechanism (14), the power distribution box body (33) is provided with an opening and closing button (4) and an opening and closing indicator lamp (3), the opening and closing button (4) is used for manually controlling the opening and closing of the molded case circuit breaker (13), the power distribution box body (33) is internally provided with an electrical fire monitoring detector (18), an output end of the electrical fire monitoring detector (18) is electrically connected with a tripping control relay, and the tripping control relay is electrically connected and used for controlling the fault tripping of the molded case circuit breaker (13).

2. The low-voltage intelligent power distribution device for mine use according to claim 1, characterized in that, The power line enters the box body through a power line hole (25) at the bottom of the power distribution box body (33), the power distribution box body (33) is connected with external wiring through an explosion-proof plug (28), and the power line hole (25) and the explosion-proof plug (28) are both explosion-proof.

3. The low-voltage intelligent power distribution device for mine use according to claim 2, characterized in that, The current transformer (12) is connected with a multifunctional instrument (2), the multifunctional instrument (2) is electrically connected with a wiring end of the disconnecting switch (11) and is used for detecting the input voltage, and the multifunctional instrument (2) is provided with a communication interface and is used for communicating with the outside.

4. The low-voltage intelligent power distribution device for mine use according to claim 3, characterized in that, The power distribution box body (33) is internally provided with a temperature and humidity controller (19), and the temperature and humidity controller (19) is electrically connected with a heater (29) at one side of the power distribution box body (33).

5. The low-voltage intelligent power distribution device for mine use according to claim 3, characterized in that, The power distribution box body (33) is provided with an infrared sensor (10), the infrared sensor (10) is connected with a voice control relay, and the voice control relay is used for controlling an infrared voice alarm (6).

6. The low-voltage intelligent power distribution device for mine use according to claim 3, characterized in that, The molded case circuit breaker (13) is electrically connected with a transformer (17), and the transformer (17) is used for supplying power to the electrical appliances in the power distribution box body (33).

7. The low-voltage intelligent power distribution device for a mine as claimed in claim 6, characterized in that, The power distribution box body (33) is internally provided with a microcomputer protection device (15), the microcomputer protection device (15) is electrically connected with an output end of the transformer (17) and is used for detecting whether the electrical power supply is normal, and the microcomputer protection device (15) is provided with a communication interface.

Images