KR200195037Y1 - Device for prventing and blocking the standby/leakage current from consumption in industrial products including electric and electronic appliauces - Google Patents

Abstract

The present invention relates to a device for preventing and blocking the consumption of standby current or leakage current in electrical, electronic products, and industrial equipment, and in particular, power circuits for various electrical, electronic products, and industrial equipment including a power transformer (1) and a bridge diode (2). A backup battery (3) which is normally charged by the output voltage of the bridge diode (2) and outputs a driving voltage to the first switching unit (6) upon input of a power 'on' signal; A power supply control signal generator 4 for generating a driving control signal corresponding to the power supply 'on' or 'off' signal by the user; A first switching driver (5) for controlling the driving of the first switching unit (6) in response to the output signal of the power control signal generator (4); The contact and solid state switch (S1) has a configuration connected in series with the second switching unit (7) connected between the two AC voltage input terminal and the driving is controlled in response to the output signal of the first switching driver (5) 1 switching section 6; Two contact and solid state switches (S21, S22) has a configuration connected in series between the AC voltage input terminal and the two primary coils of the power transformer (1) and the power supply only when the first switching unit (6) is driven By installing a second switching unit (7) for applying a commercial AC voltage to the transformer (1), so that the power supply voltage is not supplied to any functional parts as if the power cord is unplugged from the outlet during standby, It can not only prolong the life of various electric, electronic products and industrial equipments, but also prevent personal and national economic loss caused by unnecessary standby current consumption. It is to prevent in advance.

Description

Device for prventing and blocking the standby / leakage current from consumption in industrial products including electric and electronic appliauces}

The present invention relates to a device for preventing and cutting off standby current or leakage current of electrical, electronic products and industrial devices. More specifically, power cords of various electronic products such as home appliances, including various electrical products, When it is not driven in the plugged-in state, current flows to the elements that require some preheating, including each element of the power supply unit, so that the standby current caused by the current can be completely prevented, thereby greatly extending the life of each product and industrial equipment. Of course, it is designed to prevent the economic loss due to unnecessary consumption of standby current, and also to completely block the generation of harmful electromagnetic waves during standby.

In general, electrical and electronic products that are frequently operated are kept in a state where the power cord is plugged into an outlet. Thus, when the power switch is in the 'off' state when the power cord is plugged into an outlet, some electrical and electronic products are In particular, in the case of electric, electronic products, and industrial equipment whose operation is controlled by a remote control or piezoelectric power switch, each device requiring preheating including the power supply unit maintains a supply voltage, so that standby current flows. In addition to significantly shortening the lifespan of industrial and industrial devices, unnecessary consumption of standby current not only imposes an unnecessary economic burden on the user, but also results in unnecessary economic losses in terms of national economy. Since power supply voltage is supplied to the power supply unit, harmful electromagnetic waves continue to It is happening.

Therefore, in recent years, some electrical and electronic products are equipped with a standby current consumption blocking circuit to prevent this, most of them are configured to install them at the rear end of the rectifier stage in the power supply to completely block the consumption of standby current. Not only do not have a problem, there is a problem that can not prevent the damage caused by harmful electric wave.

The present invention has been devised to solve such a conventional problem, and by installing a standby current blocking circuit in the front end of the power supply of various electrical, electronic products and industrial equipment to completely block the consumption of standby current, It is possible to greatly extend the life of each product and industrial equipment, and to prevent personal and national economic losses due to unnecessary standby current consumption, and to prevent damage caused by harmful electromagnetic waves. It is an object of the present invention to provide a device for preventing and blocking the consumption of standby current or leakage current in electronic products and industrial devices.

An object of the present invention is a power transformer for dropping a high AC voltage to a low voltage; In the power supply circuits of various electrical, electronic products and industrial devices composed of bridge diodes for rectifying the secondary AC voltage of the power supply transformer to a DC voltage, the power is normally turned on by being charged by the output voltage of the bridge diode. A backup battery which outputs a driving voltage to the first switching unit when a signal is input; A power control signal generator for outputting a driving control signal corresponding to the power supply 'on' or 'off' signal by the user to the first switching driver; A first switching driver to determine whether to drive the first switching unit in response to an output signal of the power control signal generator; A first switching unit having a configuration in which a contact point and a solid-state switch are connected in series with a second switching unit connected between an AC voltage input terminal and whose driving is controlled in response to an output signal of the first switching driving unit; Two contact and contactless switches are configured in series between the AC voltage input terminal and the two primary coils of the power transformer, and the AC voltage is applied to the primary side of the power transformer only when the first switching unit is driven. This can be achieved by configuring two switching units.

Therefore, during standby, it is possible to completely cut off the consumption of standby current as if the power cord is unplugged from the outlet, which can greatly extend the life of each electric, electronic product and industrial device, and accordingly consume unnecessary standby current. It is possible to prevent the national economic loss including the individual in advance, and also to prevent the generation of harmful radio waves in the air, thereby preventing the damage caused by electromagnetic waves.

1 is a block diagram of a device of the present invention.

Explanation of symbols on main parts of drawing

1: power transformer 2: bridge diode

3: backup battery 4: power control signal generator

5: first switching driver 6: first switching unit

7: second switching unit S1, S21, S22: contact and contactless switch

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows a block diagram of the device of the present invention, according to the power supply transformer (1) for dropping a high commercial AC voltage to a low AC voltage; Of various electric, electronic products and industrial equipment composed of a bridge diode (2) for rectifying the AC voltage induced in the secondary coil of the power supply transformer (1) to a DC voltage and applying it to each functional part in various electric and electronic products. In the power supply circuit,

A backup battery 3 which is normally charged by the output voltage of the bridge diode 2 and outputs a driving voltage to the first switching unit 6 when the power 'on' signal is input;

A power control signal generator 4 for outputting a driving control signal corresponding to the power 'on' or 'off' signal by the user to the first switching driver 5;

A first switching driver (5) which determines whether to drive the first switching unit (6) in response to the output signal of the power control signal generator (4);

The contact and solid state switch (S1) has a configuration connected in series with the second switching unit (7) connected between the two AC voltage input terminal and the driving is controlled in response to the output signal of the first switching driver (5) 1 switching section 6;

Two contact and solid state switches (S21, S22) has a configuration connected in series between the AC voltage input terminal and the two primary coils of the power transformer (1) and the power supply only when the first switching unit (6) is driven It is characterized in that a second switching unit 7 is further provided on the primary side of the transformer 1 so that a commercial AC voltage is applied.

In this case, the first and second switching units 5 and 7 are referred to as relays RY1 and RY2 in the drawings, but the present invention is not limited thereto, and a non-contact switching element and other elements may be provided.

Here, reference numerals D1 and D2 denote reverse diode preventing diodes, respectively.

Referring to the operation and effect of the device of the present invention configured as described above are as follows.

First, the power control signal generator 4 is a remote control receiving circuit or piezoelectric power switch installed in each electric and electronic product, and is the remote control or the piezoelectric power switch operated by the user 'on' or 'off'? Accordingly, a power 'on' or 'off' signal is generated and input to the first switching driver 5.

Thus, the first switching driver 5 determines whether to drive the first switching unit 6 in response to the output signal of the power control signal generator 4, if the 'on' signal If it is input, the first switching driver 5 is driven at the output voltage of the backup battery 3 supplied through the first switching unit 5, so that the first switching unit 6 is driven to provide a connection between the two AC voltage input terminals. The contact and solid state switch S1 thereof in a state of being connected in series with the connected second switching unit 7 is 'on'.

Therefore, the second switch 7 is also 'on' so that the two contact and contactless switches S21 and S22 connected in series between the AC voltage input terminal and the two primary coils of the power transformer 1 are also 'ON'. Therefore, the commercial AC voltage supplied through the power cord in the state of being plugged into the outlet is supplied to the primary side of the power transformer (1), and at the output terminal of the bridge diode (2), the end of each functional part in the electrical and electronic products Normal driving is performed in which a DC voltage required for driving is output.

Of course, the backup battery (3) connected to the output terminal of the bridge diode (2) through the reverse voltage prevention diode (D1) during the normal operation of the various electrical, electronic products and industrial devices as described above the bridge diode (2) Is always charged by the output voltage.

In this case, the same effect can be obtained by installing a charging battery or a capacitor having a relatively large capacity instead of the backup battery 3, and thus the present invention is not necessarily limited to the backup battery.

On the other hand, when the user operates the remote control or the piezoelectric power switch in the 'off' state, the power control signal generator 4 outputs the power 'off' signal to the first switching unit 6, so that its contact point and no Since the contact switch S1 is 'off' and the driving of the second switching unit 7 in series connection with it is cut off, it is connected in series between the two AC voltage input terminals and the primary coil of the power transformer 1. The two contact points and the solid state switches S21 and S22 of the second switching unit 7 are also 'off' so that the commercial AC voltage applied to the primary coil of the power transformer 1 is completely blocked.

Therefore, during standby, the commercial AC voltage is not applied to the power transformer 1 installed at the input terminal side of the power supply unit, so that it is in the same state as the power cord is unplugged from the outlet, thereby completely blocking the standby current consumption. It is.

That is, since no power supply voltage is supplied to any functional parts during standby, the life of each electric, electronic product and industrial device can be greatly extended, and economic loss due to unnecessary consumption of standby current can be prevented. In addition, it is possible to block the generation of harmful radio waves themselves, which can prevent damage caused by harmful electromagnetic waves.

As described above, according to the present invention, a standby current blocking circuit is additionally installed at the front end of the power unit of various electrical, electronic products, and industrial equipment, and the power is supplied to any functional component as if the power cord was unplugged from the outlet. By not supplying voltage, it is possible to completely cut off the consumption of standby current, which can greatly extend the lifespan of various electrical, electronic products and industrial devices, as well as the personal and national economic loss caused by unnecessary standby current consumption. It can be prevented in advance, and harmful electromagnetic waves are generated even in the air, and thus the damage caused by the design is very useful.

Claims (1)

A power transformer 1 for lowering a high commercial AC voltage to a low AC voltage; Of various electric, electronic products and industrial equipment composed of a bridge diode (2) for rectifying the AC voltage induced in the secondary coil of the power supply transformer (1) to a DC voltage and applying it to each functional part in various electric and electronic products. In the power supply circuit, A backup battery 3 which is normally charged by the output voltage of the bridge diode 2 and outputs a driving voltage to the first switching unit 6 when the power 'on' signal is input; A power control signal generator 4 for outputting a driving control signal corresponding to the power 'on' or 'off' signal by the user to the first switching driver 5; A first switching driver (5) which determines whether to drive the first switching unit (6) in response to the output signal of the power control signal generator (4); The contact and solid state switch (S1) has a configuration connected in series with the second switching unit (7) connected between the two AC voltage input terminal and the driving is controlled in response to the output signal of the first switching driver (5) 1 switching section 6; Two contact and solid state switches (S21, S22) has a configuration connected in series between the AC voltage input terminal and the two primary coils of the power transformer (1) and the power supply only when the first switching unit (6) is driven A second switching unit (7) for installing a commercial AC voltage is applied to the primary side of the transformer (1), characterized in that the standby current or leakage current consumption prevention and blocking device for electrical, electronic products and industrial equipment.