CN212572188U

CN212572188U - Contravariant AC/DC power supply screen cabinet

Info

Publication number: CN212572188U
Application number: CN202021854543.7U
Authority: CN
Inventors: 郭原
Original assignee: Anhui Rixuan Electric Power Technology Co ltd
Current assignee: Anhui Rixuan Electric Power Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-02-19
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a reversible alternating current-direct current power supply screen cabinet, including alternating current distribution module, battery module, load, intelligent control module, alternating current distribution module includes input unit, rectifier unit, pressure regulating unit, and the commercial power supplies power for the load through input unit, rectifier unit, the pressure regulating unit of alternating current distribution module in proper order, and battery module includes group battery, group battery control unit, and rectifier unit passes through the switch and links to each other with the group battery, and intelligent control module respectively with alternating current distribution module, battery module electric connection; the utility model discloses, automatic cut off AC distribution module and being connected of load and let the output of group battery link to each other with the load, realize uninterrupted power supply to can be when the commercial power does not have input, pass through the steady invariable AC power supply of steady voltage step up device output after the group battery discharges automatically, for load and bee calling organ provide the power, bee calling organ sends the alarm sound and reminds maintainer in time to maintain, comparatively practical.

Description

Contravariant AC/DC power supply screen cabinet

Technical Field

The utility model belongs to the technical field of the direct current power supply screen cabinet, specifically be reversible alternating-current and direct-current power supply screen cabinet.

Background

The direct-current power supply cabinet is used for an electric power operation power supply in a power plant and a transformer substation, is a direct-current power supply at present, is used for supplying the direct-current power supply, provides power for control load, power load, direct-current accident lighting load and the like, and is a basis for control and protection of a modern electric power system, so that a great amount of advanced scientific technologies are applied.

The existing direct-current power supply cabinet has certain defects when in use, the switching between the alternating-current power distribution module and the battery module needs manual operation, a time delay phenomenon exists, a power supply cannot be provided when power is cut off, maintenance personnel cannot be reminded in time, the stable output of the voltage of the storage battery serving as a standby power supply means cannot be guaranteed, and certain inconvenience is brought to a user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the direct current power supply screen cabinet, the switching between alternating current distribution module and the battery module needs the manual work to operate and has the time delay phenomenon, can't continue to provide the power for the load when having a power failure, can't in time remind maintainer, can't guarantee the problem of the voltage stabilization output of battery as reserve power supply means, and provide the AC/DC power supply screen cabinet that can invert.

The purpose of the utility model can be realized by the following technical scheme:

invertible alternating current-direct current power supply screen cabinet, including alternating current distribution module, battery module, load, intelligent control module, alternating current distribution module includes input unit, rectifier unit, pressure regulating unit, and the commercial power passes through in proper order the input unit, rectifier unit, the pressure regulating unit of alternating current distribution module are the load power supply, battery module includes group battery, group battery the control unit, rectifier unit passes through the switch and links to each other with the group battery, intelligent control module respectively with alternating current distribution module, battery module electric connection, intelligent control module is used for receiving the output voltage signal of input unit, rectifier unit's operating signal, voltage regulating unit's output voltage signal, the charging current signal of group battery, group battery the operating signal of control unit, intelligent control module's output signal is used for controlling the break-make of rectifier unit and group battery, the intelligent control module is also used for controlling the on-off of the voltage regulating unit or the battery pack and the load through the output signal, the battery module is electrically connected with the load through the voltage boosting and stabilizing device, and the power supply end of the voltage boosting and stabilizing device is further connected with a buzzer.

Furthermore, the voltage boosting and stabilizing device comprises an isolation transformer, a rectifying and filtering circuit, a DC/DC converter, a constant-current and constant-voltage charging circuit, a switching circuit and an electric energy output interface.

Furthermore, the intelligent control module is a monitoring module PSM, an alternating current voltage sampling port of the monitoring module PSM is connected with a port of the input unit, and a direct current voltage sampling port of the monitoring module PSM is connected with the output ends of the voltage regulating unit and the battery module.

Further, the input unit comprises a flash loop, an insulation loop and a lightning arrester, and a bus voltage controller KA is arranged in the flash loop and the insulation loop.

The utility model has the advantages that:

when the commercial power is not input, the connection of the alternating current power distribution module and the load is automatically cut off, the output end of the battery pack is connected with the load, uninterrupted power supply is realized, the battery pack can automatically discharge and then output a stable constant power supply through the voltage stabilizing and boosting device when the commercial power is not input, a power supply is provided for the load and the buzzer, and the buzzer sends out an alarm sound to remind maintenance personnel to maintain in time when the commercial power is cut off.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a block diagram of the structure system of the present invention.

In the figure: 101. an AC power distribution module; 102. an intelligent control module; 103. a battery module; 104. a voltage boosting and stabilizing device; 105. a load; 106. a buzzer.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the reversible alternating current/direct current power supply panel cabinet comprises an alternating current power distribution module 101, a battery module 103, a load 105 and an intelligent control module 102, wherein the alternating current power distribution module 101 comprises an input unit, a rectifying unit and a voltage regulating unit, commercial power sequentially passes through the input unit, the rectifying unit and the voltage regulating unit of the alternating current power distribution module 101 to supply power to the load 105, the battery module 103 comprises a battery pack and a battery pack control unit, the rectifying unit is connected with the battery pack through a switch, the intelligent control module 102 is respectively electrically connected with the alternating current power distribution module 101 and the battery module 103, the intelligent control module 102 is used for receiving an output voltage signal of the input unit, a working signal of the rectifying unit, an output voltage signal of the voltage regulating unit, a charging current signal of the battery pack and a working signal of the battery pack control unit, and the output signal, the intelligent control module 102 is further configured to output a signal to control the on/off of the voltage regulating unit or the battery pack and the load 105, and is further configured to control the on/off of the battery pack and the buzzer 106, the intelligent control module 102 acquires information of electric quantity of the battery pack in real time, when the electric quantity of the battery pack is not full and commercial power is input, the intelligent control module 102 outputs a control signal to enable the rectifying unit to be communicated with the battery pack, the commercial power supplies power to the battery pack through the rectifying unit, when the battery pack is full, the battery pack is not charged, the battery module 103 is electrically connected with the load 105 through the boost voltage stabilizing device 104, and the power supply end of the;

the boosting and voltage stabilizing device 104 comprises an isolation transformer, a rectifying and filtering circuit, a DC/DC converter, a constant-current constant-voltage charging circuit, a switching circuit and an electric energy output interface; the intelligent control module 102 is a monitoring module PSM, an alternating current voltage sampling port of the monitoring module PSM is connected with a port of the input unit, and a direct current voltage sampling port of the monitoring module PSM is connected with the output ends of the voltage regulating unit and the battery module; the input unit comprises a flash loop, an insulation loop and a lightning arrester, and a bus voltage controller KA is arranged in the flash loop and the insulation loop.

When the inverter AC/DC power supply screen cabinet is used, when the mains supply is normal, the voltage regulating unit of the AC power distribution module 101 is communicated with the load 105, the intelligent control module 102 monitors the voltage of the input unit in real time, when the voltage disappears, the intelligent control module 102 disconnects the voltage regulating unit from the load 105, the battery pack is connected with the load 105 and the buzzer 106 is communicated, and the battery pack is connected with the load 105 through the voltage boosting and stabilizing device 104 to realize the voltage stabilizing output of the battery pack.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. But contravariant alternating current-direct current power supply screen cabinet, its characterized in that, including alternating current distribution module (101), battery module (103), load (105), intelligent control module (102), alternating current distribution module (101) is including input unit, rectification unit, pressure regulating unit, and the commercial power passes through in proper order input unit, rectification unit, the pressure regulating unit of alternating current distribution module (101) are for load (105) power supply, battery module (103) are including group battery, group battery control unit, the rectification unit passes through the switch and links to each other with the group battery, intelligent control module (102) respectively with alternating current distribution module (101), battery module (103) electric connection, intelligent control module (102) are used for receiving output voltage signal, the output voltage signal of rectification unit, the output voltage signal of pressure regulating unit, the charging current signal of group battery of input unit, The intelligent control system comprises a battery pack control unit, wherein an output signal of an intelligent control module (102) is used for controlling the on-off of a rectifying unit and a battery pack, the intelligent control module (102) is further used for controlling the on-off of a voltage regulating unit or the battery pack and a load (105) through an output signal, the battery module (103) is electrically connected with the load (105) through a voltage boosting and stabilizing device (104), and a power supply end of the voltage boosting and stabilizing device (104) is further connected with a buzzer (106).

2. The cabinet according to claim 1, wherein the boost and voltage stabilization device (104) comprises an isolation transformer, a rectifier filter circuit, a DC/DC converter, a constant current and constant voltage charging circuit, a switching circuit and an electric energy output interface.

3. The cabinet according to claim 1, wherein the intelligent control module (102) is a monitoring module PSM, an AC voltage sampling port of the monitoring module PSM is connected with a port of the input unit, and a DC voltage sampling port of the monitoring module PSM is connected with the output ends of the voltage regulating unit and the battery module.

4. The cabinet according to claim 1, wherein the input unit comprises a flash circuit, an insulation circuit and a lightning arrester, and a bus voltage controller KA is arranged in the flash circuit and the insulation circuit.