CN204089691U - Portable multi-voltage grade alternating current-direct current exports sun-generated electric power case - Google Patents

Abstract

The utility model discloses a mobile multi-voltage level AC and DC output solar power box, which is composed of a solar panel, a solar controller SC, a storage battery, an inverter, an intelligent charger ZC, an inverter power supply, a switching power supply and an instrument. , through normally closed and normally open contacts to control the switching of solar panels and mains charging. The power box has DC 24V, DC 110V and AC 220V power outputs. It is a green and environmentally friendly power supply that is easy to carry when going out for maintenance.

Description

Mobile multi-voltage level AC and DC output solar power box

technical field

The utility model relates to an environment-friendly electrical device used for electric power maintenance and testing, in particular to a mobile multi-voltage level AC and DC output solar power supply box.

Background technique

In the power transmission and distribution system, the distribution automation equipment is scattered outdoors, and there is no dedicated DC power supply system. Usually, the line power is converted into a secondary AC voltage through a voltage transformer, and then the battery is charged through the power charging module. The battery outputs 24V DC power supply, which is used for power distribution automation terminal equipment DTU, ONU, FTU, switch operation power supply, communication power supply, control power supply, opening and closing indicator light, and device operation power supply; If the line voltage is lost during the maintenance of the cabinet, the operating power of the automation equipment will be lost. If the battery power of the automation equipment is exhausted or damaged, and the external 220V AC power supply cannot be found, the maintenance of the switch protection will not be possible. The power transmission operation cannot be carried out, and the delay in power transmission will cause direct economic losses, and the reliability of the power supply of the distribution network cannot be guaranteed; The device has the same problem and cannot do multi-point operations at the same time.

During the maintenance of the switch on the pole with remote control function in the distribution network, due to the power failure of the line, the PT cannot obtain voltage, and the switch controller on the pole cannot obtain 24V or 110V DC power for remote operation or protection of the drive; in view of the above problems, in order to improve the distribution network In order to improve the maintenance efficiency, a solar power generation system suitable for providing power to the automation terminal equipment is designed when the automation ring main unit is repaired and the power is cut off.

Utility model content

The purpose of the utility model is to solve the above-mentioned problems in the prior art, and provide a power supply box using clean energy and multi-voltage output.

In order to achieve the above purpose, the power box is composed of solar panel, solar controller SC, battery, inverter, smart charger ZC, inverter power supply, switching power supply and instrument. The electrical connection relationship between each component is as follows: The output of the solar panel is connected to the solar controller SC, and the output of the solar controller SC passes through the normally open contact SA1, the fuse FU1, the normally open contact SA2, and the fuse FU2 respectively, and then connects to the positive pole of battery 1 and the negative pole of battery 2; battery 1 and Battery 2 strings

connected to form a DC 24V output; the DC 24V output terminal is connected to the inverter power module to obtain AC AC220V output power; It is connected to the upper ends of fuses FU1 and FU2 through the normally closed contacts SA1 and SA2; all electrical components except the solar panel are installed in the solar power box.

The DC 24V output circuit is connected with a DC current and a DC voltmeter, and the AC 220V and DC 110V output circuits are respectively connected with an AC voltmeter and a DC voltmeter.

Meters and jacks are installed on the front of the solar power box, and the front side of the smart charger ZC is exposed. The box is equipped with handles, ventilation holes, and wheels at the bottom.

Due to the adoption of the above-mentioned solar power supply box, green energy is used, and the actual needs of electric power maintenance operations are met.

Description of drawings

Figure 1 The circuit diagram of the mobile multi-voltage level AC and DC output solar power box.

Figure 2. Schematic diagram of the mobile multi-voltage level AC and DC output solar power box.

Detailed ways

The circuit, components and structure of the mobile multi-voltage level AC and DC output solar power box will be described in detail below in conjunction with the accompanying drawings.

It can be seen from Figure 1 that the power box is composed of solar panels, solar controller SC, battery, inverter, smart charger ZC, inverter power supply, switching power supply and instrumentation. The electrical connection relationship between the components is: solar energy The output of the solar panel is connected to the solar controller SC, and the output of the solar controller SC passes through the normally open contact SA1, the fuse FU1, the normally open contact SA2, and the fuse FU2, and then connects to the positive pole of the battery 1 and the negative pole of the battery 2; the battery 1 and the battery 2. Connect in series to form a DC 24V output; the DC 24V output terminal is connected to the inverter power supply module to obtain AC AC220V output power, and the output of the inverter power supply module is connected to the switching power supply module to obtain DC DC110V output power; the smart charger ZC inputs AC220V power supply, and its output They are respectively connected to the upper ends of fuses FU1 and FU2 through the normally closed contacts SA1 and SA2; the normally open contacts SA1 and SA2 and the normally closed contacts SA1 and SA2 have an interlock function to ensure that only one charging device is allowed to charge the battery at any time. The above-mentioned electrical components except the solar panel are installed in the solar power box.

The DC 24V output circuit is connected with a DC current and a DC voltmeter, and the AC 220V and DC 110V output circuits are respectively connected with an AC voltmeter and a DC voltmeter.

Battery selection: The overall design capacity of the operating power supply is 400W, provided by two 12V batteries, and the design power consumption time is 2 hours; the power box adopts flexible charging methods, which can be charged by environmentally friendly and energy-saving solar energy, and can also be quickly charged by AC/DC Charging; the AC and DC voltage and ammeters are high-precision digital, and the two charging methods adopt an interlock function, and only one charging device is allowed to charge the battery at any time.

As can be seen from Figure 2, the front of the solar power supply box is equipped with meters and jacks, and the front side of the smart charger ZC is exposed. There are handles on the box, ventilation holes on the side, and wheels on the bottom for easy movement.

To implement this power box, although the selection of each component is not single, you must choose the national standard components. The components of this power box and the wiring between the components must be connected according to the standards and the wiring regulations of the components.

Claims (3)

1. A mobile multi-voltage level AC-DC output solar power box, characterized in that: the solar power box is composed of solar panels, solar controller SC, storage battery, inverter, intelligent charger ZC, inverter power supply, Combination of switching power supply and instrument, the electrical connection relationship between the components is as follows: the output of the solar panel is connected to the solar controller SC, and the output of the solar controller SC passes through the normally open contact SA1, the fuse FU1, the normally open contact SA2, After the fuse FU2, connect the positive pole of battery 1 and the negative pole of battery 2; battery 1 and battery 2 are connected in series to form a DC 24V output; the DC 24V output terminal is connected to the inverter power module to obtain AC AC220V output power, and the output of the inverter power module is connected to the switching power supply module , to obtain DC DC110V output power; the smart charger ZC inputs AC AC220V power, and its output is respectively connected to the upper end of fuses FU1 and FU2 through normally closed contacts SA1 and SA2; all electrical components except the solar panel are installed in the solar power box in vivo. 2. The mobile multi-voltage level AC/DC output solar power box according to claim 1, characterized in that: the DC 24V output circuit is connected with a DC current and DC voltmeter, and the AC 220V and DC 110V output circuits are respectively connected with AC voltmeter, DC voltmeter. 3. The mobile multi-voltage level AC/DC output solar power box according to claim 1, characterized in that: the front of the solar power box is equipped with meters and jacks, and the front side of the front side reveals the front of the smart charger ZC, and the box body It has a handle on the top, ventilation holes, and wheels on the bottom.