CN104201740A - Drawer type emergency power supply - Google Patents

Abstract

The invention belongs to the field of energy power supply and particularly to a drawer type emergency power supply. The drawer type emergency power supply is concentrated inside a main box; the main box is communicated with a storage battery, a transformer, alternating current output and alternating current input which are arranged on the exterior through plug connectors to form into an integral type emergency power supply; the main box is assembled inside the integral type emergency power supply in a drawer type installation mode; electrical apparatus elements inside the main box are formed by a direct current bus, a rectification charging unit LKC, a module drive DR, a DSP control unit, a ZPT inverter unit, an LC output filter network, an output contactor KM1-KM2, a manual-automatic switch and a key switch. The drawer type emergency power supply has the advantages of improving the technological structure of the emergency power supply and being arranged inside the drawer type main box in concentrate mode due to a multi-unit structure; reducing emergency power supply fault points and being beneficial to maintenance in later period; reducing dust influences to power equipment due to concentrate installation and simplifying a complex structure of the emergency power supply.

Description

Drawer type emergency power supply

Technical field

The invention belongs to emergency power supply field, specifically a kind of drawer type emergency power supply.

Background technology

The intelligent degree of modern architecture is more and more higher, and the Electrification construction in building gets more and more, function is also more and more abundanter.Also obtain gradually social extensive approval and attention for the power failure prevention in building and emergency processing work, emergency power supply is through the development of more than ten years, and its design, function, structure are also more and more tending towards miniaturization, modularization.

Summary of the invention

For the technical problem existing in prior art, the invention provides a kind of drawer type emergency power supply.

To achieve these goals, the technical solution adopted in the present invention is: a kind of drawer type emergency power supply, concentrate in mainframe box, this mainframe box and outside batteries, transformer, interchange output, the connection exchanging between input are connected by plug connector, and forming integral type emergency power supply, mainframe box is assembled with drawer type mounting means in this integral type emergency power supply;

In described mainframe box, electric elements are made up of DC bus, rectification charging unit LKC, module drive DR, DSP control unit, ZPT inversion unit, LC output filtering network, output contactor KM1-KM2, manual-automatic switch and force switch;

When civil power is normal, output contactor KM1 closure, KM2 disconnects, and RSTN exchanges input and is divided into two-way, and a road is that batteries is carried out floating charge through rectification charging unit LKC, and another road process KM1 is to output AC bus UVW;

After civil power breaks down, KM2 closure, KM1 disconnects, and the electric energy of batteries drives inverter ZPT that direct current energy is reverse into after alternating current by DR, again by transformer T boost and LC output filtering network after, deliver to UVWN output AC bus by contactor KM2;

Input voltage, direct voltage, the output current parameter that described DSP control unit obtains according to testing circuit judges operating state and the failure problems of emergency power supply.

Drawer type emergency power supply of the present invention, compared with prior art, its beneficial effect shows:

1), improved the process structure of emergency power supply, multi-unit structure is concentrated and is positioned in the mainframe box of drawer type by taking.Reduce the fault point of emergency power supply, be convenient to later maintenance inspection.Can reduce power equipment and be subject to the impact of dust by installing concentratedly, and reach the labyrinth of simplifying emergency power supply.

2), by functional units numerous emergency power supply is placed in mainframe box by concentrating, main frame external circuit becomes succinctly, clear, is easy to Field Force's operation; The power bracket of emergency power supply is in 20KW time, the weight of mainframe box can not be very large by the single heat dissipation capacity realizing in plug disassembling section and mainframe box, and space and air channel are left in inner space, the heat that still can come in time inversion unit to be produced by one to two fan blows away.

3), the fault point that can reduce emergency power supply, in later stage maintenance process, provide convenient for emergency power supply.If mainframe box internal damage, mails production company to and repairs, without spot repair after can dismantling by plug.

Brief description of the drawings

Fig. 1 is circuit theory diagrams of the present invention.

Fig. 2 is the front view of emergency power supply.

Fig. 3 is the front view of mainframe box.

Fig. 4 is the lateral plan of mainframe box.

Embodiment

For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with accompanying drawing.

Refer to Fig. 1-4, exchange input RST and exchange output UVW common zero line N, be connected with filter network with the rectification charging unit of mainframe box inside by connector.Before ac bus output, having two contactor KM1, KM2 has been from exchanging input bypass and exporting gating work between the two from inversion unit, between two contactors, is interlocked relationship.For the quality that improves inverter output voltage adopts LC filter network, the alternating current after transformer is boosted carries out filtering, harmonic carcellation.In the time that civil power breaks down, send a signal to DR drive circuit by DSP control board and drive inversion module, the alternating current that inversion module inversion goes out boosts through transformer and filtering output.Mainframe box outside is provided with force switch and manual-automatic switch, and LCD display panels.

Mainframe box mainly by DC bus, rectification charging unit LKC, module drive DR, DSP control unit, ZPT inversion unit, LC output filtering network, output contactor KM1-KM2, manually automatically, the functional unit such as force switch and device be placed in the mainframe box of drawer type.Mainframe box and outside batteries, transformer, interchange output, exchange and complete being connected by connector between output.In the time that civil power is normal, output contactor KM1 closure, KM2 disconnects, and RSTN exchanges input (taking three-phase as example) and is divided into two-way, and a road is that batteries is carried out floating charge through rectification charging unit LKC, and another road process KM1 is to output AC bus UVW; After civil power breaks down, KM2 closure, KM1 disconnects, and the electric energy of batteries drives inverter ZPT that direct current energy is reverse into after alternating current by DR, again by transformer T boost and LC output filtering network after, deliver to UVWN output AC bus by contactor KM2.

The control unit of emergency power supply is mainly completed by DSP, and the parameter such as input voltage that DSP obtains according to testing circuit, direct voltage, output current judges operating state and the failure problems of emergency power supply.Output parameter is consulted in the LCD display on mainframe box surface.

Drawer type emergency power supply, concentrate in mainframe box, this mainframe box and outside batteries, transformer, interchange output, the connection exchanging between input are connected by plug connector, and form integral type emergency power supply, and mainframe box is assembled with drawer type mounting means in this integral type emergency power supply.

Above content is only to structure example of the present invention and explanation; affiliated those skilled in the art make various amendments to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.

Claims (1)

1. a drawer type emergency power supply, it is characterized in that: this emergency power supply concentrates in mainframe box, this mainframe box and outside batteries, transformer, interchange output, the connection exchanging between input are connected by plug connector, and forming integral type emergency power supply, mainframe box is assembled with drawer type mounting means in this integral type emergency power supply;

In described mainframe box, electric elements are made up of DC bus, rectification charging unit LKC, module drive DR, 9SP control unit, ZPT inversion unit, LC output filtering network, output contactor KM1-KM2, manual-automatic switch and force switch;

When civil power is normal, output contactor KM1 closure, KM2 disconnects, and RSTN exchanges input and is divided into two-way, and a road is that batteries is carried out floating charge through rectification charging unit LKC, and another road process KM1 is to output AC bus UVW;

After civil power breaks down, KM2 closure, KM1 disconnects, and the electric energy of batteries drives inverter ZPT that direct current energy is reverse into after alternating current by DR, again by transformer T boost and LC output filtering network after, deliver to UVWN output AC bus by contactor KM2;

Input voltage, direct voltage, the output current parameter that described DSP control unit obtains according to testing circuit judges operating state and the failure problems of emergency power supply.