Search

CN-121983861-A - Maintenance power supply control device for subway vehicle train inspection warehouse and control method thereof

CN121983861ACN 121983861 ACN121983861 ACN 121983861ACN-121983861-A

Abstract

The invention discloses an overhaul power supply control device for a metro train inspection warehouse, which comprises a cabinet body, an LED live display screen, a low-voltage chamber, a high-voltage chamber, a cable wiring copper bar, a secondary interface module, a switching-on and switching-off control contactor, a voltage relay and a temperature and humidity controller, wherein the low-voltage chamber is internally provided with a voltage sensor, an electric load isolating switch functional unit, a heater, a voltage monitoring module, a temperature and humidity sensor and a camera, the cable wiring copper bar comprises a wire inlet switching copper bar, a contact rail switching copper bar and a grounding switching copper bar, and a control method.

Inventors

  • YU DE
  • HU ZHUO
  • TONG XIANG
  • HU CONGCONG
  • HUANG HAO
  • YANG PENG
  • LUO KUAN
  • Gao Xingnan
  • LIU SHOUXUE
  • JIE QIANG

Assignees

  • 武汉长海电气科技开发有限公司

Dates

Publication Date
20260505
Application Date
20260203

Claims (7)

  1. 1. The overhauling power supply control device for the subway train inspection warehouse is characterized by comprising a cabinet body (100), an LED live display screen (1) arranged on the cabinet body (100), a low-voltage chamber, a high-voltage chamber, a cable wiring copper bar (25) and a secondary interface module, wherein the low-voltage chamber and the high-voltage chamber are arranged in the cabinet body (100) from top to bottom, an on-off control contactor (11), a voltage relay (12) and a temperature and humidity controller (14) are respectively arranged in the low-voltage chamber, a voltage sensor (13), an electric load isolating switch functional unit (19), a heater (20), a voltage monitoring module, a temperature and humidity sensor (23) and a camera (22) for image acquisition are respectively arranged in the high-voltage chamber, the electric load isolating switch functional unit (19) comprises a discharging resistor (15), an isolating switch assembly (16), a contactor (17), a roller type residual voltage discharging module (21), an electric interlocking control unit (24) and an isolating switch moving contact, and the cable wiring copper bar (25) comprises a contact copper bar, a contact bar and a ground contact bar.
  2. 2. The overhauling power supply control device for the metro train inspection warehouse of claim 1, characterized in that a rainproof top cover (4) and a hanging ring (9) are further arranged outside the cabinet body (100), a transparent observation window (8) and a manual operation locking module (18) are arranged on an outer cabinet door of the cabinet body (100), and an MCB fault alarm indicator lamp (2), an electric opening and closing change-over switch (3), a switch position indicator (5), a voltage monitoring alarm buzzer (6) and a control mode change-over switch (7) are arranged on an inner cabinet door of the cabinet body (100).
  3. 3. The overhauling power supply control device for the metro train inspection warehouse of claim 1, wherein the LED live display screen (1) comprises an LED display screen, a control module, a power supply module and an interface unit which are arranged in an integrated protective cover shell, and the integrated protective cover shell is connected to the top of the cabinet body (100) through a mounting bracket.
  4. 4. The overhauling power supply control device for the train inspection warehouse of the metro vehicle according to claim 1, 2 or 3, wherein the low-pressure chamber adopts a double-layer door structure, the outer layer door is sealed by an EPDM foaming strip, and the outer layer door is locked by a multi-point compression mechanism.
  5. 5. The overhauling power supply control device for the metro train inspection warehouse of the invention according to claim 4 is characterized in that the electric load isolating switch functional unit (19) adopts an electric linkage of an isolating switch assembly (16) and a contactor (17), the isolating switch assembly (16) and the contactor (17) are respectively driven by a motor and an electromagnetic coil, short-time on-load closing is realized through the contactor (17), long-term current carrying is realized through the isolating switch assembly (16), the roller type residual voltage discharging module (21) comprises a roller type elastic arc contact bypass structure, and the roller type elastic arc contact bypass structure and a grounding contact form a bipolar structure.
  6. 6. A control method of an inspection power supply control device for a train inspection warehouse of a subway vehicle according to claim 1, comprising the steps of: When the switch is switched on, the movable contact of the isolating switch moves from the grounding position of the electric interlocking control unit (24) to the isolating position, the bypass contactor (17) is switched on, and the movable contact of the isolating switch transits from the isolating position to the incoming line switching copper bar in an equipotential manner; When the isolating switch moving contact is grounded, the equipotential transition is carried out from the working position to the isolation position, the bypass contactor (17) cuts off the incoming line switching copper bar, if the residual voltage is too large, the isolating switch moving contact is suspended at the isolation position, and the isolating switch moving contact is restarted to be switched to the grounding switching copper bar after waiting for the residual voltage to drop.
  7. 7. The control method of an inspection power supply control device for a metro train inspection warehouse of claim 6, wherein when a manual operation locking module (18) is manually operated, the electric switching-on/off loop is switched off to lock the electric operation, and when a manual operation signal is locked, a switching-on control signal or a switching-off control signal can be sent out in a local or remote mode: The method comprises the steps of sending a closing signal, enabling an intermediate relay and a closing contactor (17) to act, combining travel switch signal feedback of an electric interlocking control unit (24), and realizing that a moving contact of an isolating switch moves from a grounding position to a bypass contactor (17) of the isolating position to close, and enabling the moving contact of the isolating switch to transition from the isolating position to a working position in an equipotential manner; The method comprises the steps of sending out a brake separating signal, enabling an intermediate relay and a brake separating contactor (17) to act, combining travel switch signal feedback of an electric interlocking control unit (24), realizing that a moving contact of an isolating switch transits from a working position equipotential to a bypass contactor (17) of the isolating position to brake separating, combining residual voltage real-time monitoring signals fed back by an action contact of a voltage relay (12), realizing that the moving contact automatically stops when the residual voltage is monitored to be too high in the process of monitoring from the isolating position to the grounding position, simultaneously starting a voltage monitoring alarm buzzer (6) to alarm, enabling the moving contact to automatically start when the residual voltage is attenuated to a certain value, bypassing a roller type residual voltage discharging module (21) to rapidly discharge residual charges, and enabling the moving contact of the isolating switch to move from the isolating position to the grounding position through the roller type residual voltage discharging module (21).

Description

Maintenance power supply control device for subway vehicle train inspection warehouse and control method thereof Technical Field The invention belongs to the technical field of electric supporting equipment, and particularly relates to an overhaul power supply control device for a metro train inspection warehouse and a control method thereof. Background With the arrival of urban rail transit construction peak period, daily maintenance and overhaul workload of subway vehicles and trams are increased, and safety problems of overhaul and maintenance are gradually exposed, meanwhile, the urgent requirements of unmanned train technical development are combined, and the demand level of intelligent and safe train inspection power supply equipment is higher and higher. At present, a metro train inspection warehouse mainly adopts manual maintenance equipment or electric isolation switch equipment with a grounding switch to supply power to a train, and the core device in the manual maintenance equipment or the electric isolation switch equipment with the grounding switch is a two-station or three-station isolation switch. At present, no related product is available at home and abroad to safely and reliably solve the potential safety hazard problem. Based on the problems, the intelligent maintenance power supply control device for the subway vehicle field section train inspection warehouse, which can realize load operation, residual voltage monitoring and safe and reliable grounding, solves the problems of arc discharge, personal injury and vehicle loss, more effectively ensures the life safety of subway vehicle maintenance personnel and the safety of in-vehicle and ground power supply equipment, and simultaneously meets the unmanned power distribution market demand of urban rail transit. Disclosure of Invention In order to solve the problems set forth in the background art, an object of the present invention is to provide an inspection power control device for a metro train inspection warehouse. The technical scheme includes that the overhaul power supply control device for the subway train inspection warehouse comprises a cabinet body, an LED live display screen arranged at the top of the cabinet body, a low-voltage chamber and a high-voltage chamber which are arranged in the cabinet body from top to bottom, a cable wiring copper bar and a secondary interface module, wherein a switching-on and switching-off control contactor, a voltage relay and a temperature and humidity controller are respectively arranged in the low-voltage chamber serving as an instrument chamber, a voltage sensor, an electric load isolating switch functional unit, a heater, a voltage monitoring module, a temperature and humidity sensor and a camera for image acquisition and video linkage are respectively arranged in the high-voltage chamber, the electric load isolating switch functional unit comprises an isolating switch assembly, a bleeder, a roller type residual voltage module, a load discharging resistor, an electric interlocking control unit and an isolating switch moving contact, and the cable wiring copper bar comprises an incoming line switching copper bar, a contact rail switching copper bar and a grounding switching copper bar. A subway train is listed as and is examined storehouse with maintenance power controlling means, its cabinet body still be provided with rain-proof overhead guard and install rings on the entablature of the cabinet body through rings nut post, still be provided with transparent observation window and manual operation locking module on the outer cabinet door of the cabinet body, still be provided with MCB fault alarm indicator, electronic divide-shut brake change over switch, switch position indicator, voltage monitoring alarm buzzer and control mode change over switch on the interior cabinet door of the cabinet body. A subway train is listed as and is examined storehouse with maintenance power controlling means, its LED electrified display screen include LED display screen, control module, power module and the interface unit of setting up in integral type protection casing shell, integral type protection casing shell pass through the installing support and connect at cabinet body top, LED electrified display screen adopts the removal USB device to download the procedure to control module, support the dial setting LED display screen stock way number, the presetting of convenient display content and on-the-spot to stock way number adjustment support RS-485 communication mode and other equipment to be connected and show simultaneously, the protection level can reach IP54. A subway train is listed as and is examined storehouse and use maintenance power control device, its low pressure room adopts double-deck door structure, outer layer door adopts EPDM foaming sealing strip and cooperates special multiple spot closing type locking mechanism, the sealing strip installation is uninterrupted, the distortion-free, the s