KR100320946B1 - Direct current electric power output system using alternating current - Google Patents

Abstract

The present invention is to be applied to the AC power that is generally used to output to a DC power of various voltages, or to use the AC power together with the DC power to increase the convenience of use by using an AC power DC It relates to a power output device;

The DC power output device 10 includes an input terminal 12 for receiving AC power on the case 11 and a plurality of output jacks 13, 14, and 15 for outputting AC power;

A transformer 16 provided at the rear of the input terminal 12 as a means for converting AC power into DC power;

An input changeover switch (17) provided between the input terminal (12) and the transformer (16) to switch to a corresponding voltage according to the voltage of an AC power input;

On the output line between the output jacks (13, 14, 15) and the transformer (16), the output selection for selecting the voltage (1.5V ~ 15V) of the DC power output through the output jacks (13, 14, 15) And the output display lamps 23, 24, and 25 for confirming the use states of the switches 20, 21, and 22 and the selected voltage.

Description

Direct current electric power output system using alternating current}

The present invention relates to a DC power output device using an AC power, and more particularly, to receive the AC power generally used to output to a DC power of various voltages, or to use the AC power together with the DC power By doing so, it is possible to increase the convenience of use.

In general, electricity is electrostatic and galvanic, and galvanic is direct current and alternating current, and direct current means that the voltage or current is kept constant and the direction is constant over time. The value changes and the direction repeats alternately in the forward and reverse directions.

AC power is used in daily life and can be directly connected to home appliances or other electrical appliances without going through a separate converter;

In the case of DC power, constant voltage (low voltage) must be maintained continuously. Therefore, use a dedicated power source such as a battery or battery, or use an exclusive adapter that converts to DC by applying AC. have.

In the case of a dedicated adapter for converting to a DC by receiving an AC power source has already been used in the prior art and briefly look at its configuration;

It consists of a plug for receiving AC power, a transformer for converting the AC power to DC power, and a jack for connecting the DC power converted from the transformer to the product.

Since the conventional products as described above can use only one dedicated adapter in one product, there is an inconvenience of having to provide a dedicated adapter for each electrical product using a DC power source.

In particular, when DC power is used, AC power cannot be used at the same time, so it is not possible to mix and use.A power outlet that is supplied with DC power is equipped with a mobile outlet (aka multi-outlet) for DC power and an adapter for DC power. There was an inconvenience to be used separately.

Accordingly, the present invention improves the DC converter (adapter) for converting to DC by receiving AC power, which is devised to solve the above problems, and enables the use of DC power of various voltages, and also has several output jacks. Thereby allowing a large number of DC power products to be used at the same time;

By using AC power at the same time, it is possible to use DC and AC at the same time by using one adapter to increase the convenience of use.

1 is a perspective view of a DC power output device using an AC power supply according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a direct current power output device using the alternating current power supply taken along the line A-A of FIG.

Figure 3 is a plan view of a direct current power output device using the present invention AC power.

4 is a configuration circuit diagram of a DC power output device using the present invention AC power.

5 is a perspective view of a DC power output device using an AC power source to which another embodiment of the present invention is applied.

FIG. 6 is a cross-sectional view taken along the line AA of FIG. 5. FIG.

* Description of the symbols used in the main parts of the drawings *

10; DC power output device

12; Input terminal

13,14,15; Output jack

16; Trance

17; Input changeover switch

20,21,22; Output selector switch

23,24,25; Output display lamp

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the present invention for achieving the above object will be described.

1 is a perspective view of a DC power output device using an AC power supply according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the DC power output device using the AC power taken along the line A-A of Figure 1, Figure 3 is the present invention 4 is a plan view of a DC power output device using an AC power source, and FIG. 5 is a perspective view of a DC power output device using an AC power source according to another embodiment of the present invention. 6 is a cross-sectional view taken along the line AA of FIG. 5.

DC power output device 10 using the AC power of the present invention;

An input terminal 12 for receiving AC power is provided on one side of the case 11 having a substantially hexahedral shape, and a plurality of output jacks 13, 14, 15 for outputting AC power are provided on the opposite side.

The rear of the input terminal 12 is provided with a transformer 16 for changing the AC power into a DC power, and the voltage level of the AC power input between the input terminal 12 and the transformer 16 (normally 110V and 220V). The input conversion switch 17 which can be used universally by switching to the corresponding voltage is provided.

On the output line between the output jacks (13, 14, 15) and the transformer (16), the output selection for selecting the voltage (1.5V ~ 15V) of the DC power output through the output jacks (13, 14, 15) Output indicator lamps 23, 24, and 25 are provided to confirm the use of the switches 20, 21, 22 and the selected voltage.

The output selection switches 20, 21, 22 and output display lamps 23, 24, 25 are made by the controller 30 is substrateized.

In another embodiment;

A plurality of outlets 31 and 32 may be further provided at the rear of the DC power output device 10 to simultaneously use the DC power and the AC power.

The action of the present invention as described above;

If you want to use an electrical appliance that operates with a direct current power source, the AC power is popular with the input terminal 12 of the direct current power output device 10 of the present invention and converted into a direct current power supply through the transformer 16, and the direct current power output. By connecting the output jacks 13, 14, and 15 of the device 10, a direct current power source can be used.

When the AC power is applied to the DC power output device 10, it is converted to 100V or 220V using the input changeover switch 17 according to the voltage level of the AC power, and thus general use is possible regardless of the rated voltage of the AC power. Make it possible.

The input AC power is converted into DC power by the transformer 16 and output to the output jacks 13, 14 and 15. In this case, selective use is possible according to the corresponding voltage.

That is, since the voltage of the power source converted to direct current by the output selection switches 20, 21, 22 can be selectively used within the range of 1.5, 2, 3, 4.5, 6, 9, 12, 15V, the output jack 13 And 14, 15) by connecting the electrical appliances and then by controlling the output selection switch (20, 21, 22) suitable for the electrical appliance is supplied with a DC power at the corresponding voltage.

As described above, the voltage selected by the output selection switches 20, 21, 22 indicates that the corresponding voltage is in use by the output display lamps 23, 24, 25 that operate in conjunction with the output selection switches 20, 21, 22. Done.

As another use example;

By connecting an electrical product using an AC power source to the outlets 31 and 32 further provided to the rear of the DC power output device 10, the DC power source and the AC power source can be used simultaneously, thereby eliminating the need for a separate outlet or an adapter. Convenience

The present invention as described above allows the use of a DC power supply of a variety of voltages by receiving an AC power supply and also has a plurality of output jacks can be used at the same time a large number of DC power products, as well as to use the AC power at the same time It has many effects, such as increasing the convenience of use.

Claims (3)

In constructing a DC power output device using the AC power; The DC power output device 10 includes an input terminal 12 for receiving AC power on the case 11 and a plurality of output jacks 13, 14, and 15 for outputting AC power; A transformer 16 provided at the rear of the input terminal 12 as a means for converting AC power into DC power; An input changeover switch (17) provided between the input terminal (12) and the transformer (16) to switch to a corresponding voltage according to the voltage of an AC power input; On the output line between the output jacks (13, 14, 15) and the transformer (16), the output selection for selecting the voltage (1.5V ~ 15V) of the DC power output through the output jacks (13, 14, 15) And a switch (20, 21, 22) and an output display lamp (23, 24, 25) for confirming the use state of the selected voltage. The method of claim 1; And the output selection switches (20, 21, 22) and output display lamps (23, 24, 25) are controlled by a boarded controller (30). The method of claim 1; DC power output device using the AC power, characterized in that it further comprises a plurality of outlets (31, 32) to use the AC power at the back of the DC power output device 10 at the same time.