KR20130000622A - Wireless switch - Google Patents

Abstract

PURPOSE: A wireless switch device is provided to simplify a circuit configuration of a receiver by extracting a fine current using a triac in a switch driving unit. CONSTITUTION: A receiver unit includes a wireless signal receiver and a central processing unit(120). The central processing unit generates a load driving signal to supply or block power to or from a load. A triac(T1) outputs a fine current to a gate by connecting a gate to an anode. A first zener diode(ZD2) and a second zener diode(ZD3) convert the fine current outputted through a gate terminal of the triac to a constant current. A first switching transistor(Q3) and a second switching transistor(Q4) perform a switching operation according to the operation of a first photo coupler(U1) and a second photo coupler(U2).

Description

Wireless switch device {Wireless switch}

The present invention relates to a wireless switch, and more particularly, by using a triac in a switch driver without using a separate power extractor, an expensive high voltage capacitor, and a high voltage resistor to obtain a DC power required in the receiver. The present invention relates to a wireless switch device capable of extracting a microcurrent, thereby simplifying a circuit configuration of a receiver and minimizing size.

In general, in the lighting blinking device, the control method of the lighting through the switch unit provided in the wall is configured such that the first power line coming from the distribution panel is connected to the lighting unit, and the second power line is connected to the lighting unit via the switch unit.

Since the switch unit is generally provided at a position reachable to the user, the switch unit is generally located on the wall of the building. Accordingly, a power line applied to the switch unit is wired inside the wall and is applied to a plurality of switch units corresponding to individual lights. Wires from the power lines are formed inside the walls of the building.

When the lighting is turned on or off, the user moves directly to a place equipped with a switch and then manually turns on or turns off the lighting by operating the switch, which is inconvenient to operate and is turned off at night. Afterwards, the surrounding area is dark, and you may feel uncomfortable going to where you want to go.

Therefore, the wireless switch device has been proposed to solve the inconvenience of manual operation and to turn on and off the lighting more conveniently.

In such a wireless switch device, when a user operates a remote controller (transmitter) or the like remotely, an illumination control signal is wirelessly transmitted from a remote controller (transmitter), and a receiver provided in a wall or the like receives a radio signal transmitted from the transmitter. When the received signal is analyzed and the lighting lighting signal is controlled, the switch is controlled through the driver to supply power to the lighting, and if the lighting signal is turned off, the power is supplied to the lighting by controlling the switch through the driving unit.

Such a wireless switch device is provided with a power supply (for example, a battery) in the receiver, so that the radio signal transmitted from the transmitter can always be received. Therefore, since the wireless switch device has a built-in battery, the size of the device increases, and the inconvenience of having to replace the battery at an appropriate time is accompanied.

In order to solve the inconvenience of the wireless switch device, a conventionally proposed method is a method of extracting and using a DC power source (usually, DC 3.3V to 5V) directly from a commercial AC power line as shown in FIG. 1.

As shown in FIG. 1, a receiver of a conventional wireless switch device is connected to a commercial AC power line, and passes through a high voltage capacitor (C) and a high voltage resistor (R) for extracting power, and passes through the high voltage resistor (R). Rectifying the power supply to a predetermined DC voltage to the power supply unit 10 for supplying the power inside the receiving unit and the power supply from the power extraction unit 10, and operates from a power supply (remote control) When the remote control signal is received from the remote control receiver 20 and the power extraction unit 10 to receive the transmitted remote control signal, and the remote control signal is received from the remote control receiver 20, the load is analyzed (for example, Lighting) is operated by the central processing unit 40 for generating a control signal for turning on or off the power, and the power supplied from the power extraction unit 10, the control generated in the central processing unit 40 On signal Accordingly, the driving unit 50 is configured to drive the switch 60 that supplies or cuts power to the lighting 30.

In the conventional wireless switch device configured as described above, AC power is always input through a high voltage capacitor (C) and a high voltage resistor (R) connected to a commercial AC power line, and a power source including triac, rectifier circuit, SCR, zener diode, and the like. The extraction unit 10 rectifies the power input through the high voltage resistor R, makes a constant voltage, and supplies the same to the driving unit 50, the remote control receiver 20, and the central processing unit 40.

The remote control receiver 20 is driven by the supplied power to receive a remote control signal transmitted from a transmitter (remote control), and when the remote control signal is received, the signal is processed and transmitted to the central processing unit 40 as a digital signal.

When the CPU 40 receives the remote control signal, the CPU 40 analyzes the remote controller signal to determine whether the lighting is turned on or off, and generates and applies a control signal for lighting on or turning off the lighting to the driver 50 according to the determined result.

The driving unit 50 drives the switch 60 according to the input control signal, thereby supplying power to the load 30 or cutting off the power supplied to the load. In this case, the switch 60 may be an analog switch or a semiconductor switch such as a triac. In the case of an analog switch, the switch may be operated by using a relay. In the case of a triac, the gate is controlled.

However, such a conventional wireless switch device uses expensive high voltage capacitors and high voltage resistors in order to supply power to a portion requiring power of a receiver, and uses a separate power extractor, which requires a lot of circuit implementation costs. In addition, the circuit configuration is complicated, as well as the size of the device (receiver) is increased by various circuit configurations.

Accordingly, the present invention has been proposed to solve various problems occurring in the conventional wireless switch device as described above.

The problem to be solved by the present invention is to extract the microcurrent using the triac in the switch drive without using a separate power extractor, expensive high voltage capacitor and high voltage resistor as in the past to obtain the DC power required in the receiver. The present invention provides a wireless switch device capable of simplifying a circuit configuration of a receiver and minimizing size.

"Wireless switch device" according to the present invention for solving the above problems,

A receiver which extracts a microcurrent through the gate of the triac from the line connecting the gate of the triac and the anode connected to an input commercial AC power line and uses the internal current as a driving power source;

It characterized in that it comprises a wall-type transmitter for transmitting the load control signal wirelessly to the receiver.

The receiver may further comprise:

A wireless signal receiver for receiving a load control signal wirelessly transmitted from the transmitter;

And a central processing unit for generating a load driving signal to search for a load control signal received by the radio signal receiver to supply or cut off power to the load.

The receiver may further comprise:

The triac connected to the commercial AC power line to supply power to the load (light) or to cut off the power supplied to the load, and output a microcurrent to the gate through a connection between the gate and the anode;

And first and second zener diodes connected to the gate terminal of the triac to make a microcurrent output through the gate terminal to be a constant current.

The receiver may further comprise:

First and second photocouplers for generating an operation signal according to a load driving signal output from the central processing unit;

First and second switching transistors configured to perform a switching operation according to the operations of the first and second photocouplers;

First and second silicon rectifiers for supplying or cutting off commercial AC power for driving a load according to the operation of the first and second switching transistors;

First and second charge / discharge capacitors disposed between the first and second switching transistors and the first and second silicon rectifiers, respectively, to gradually increase a supply voltage to prevent a circuit from being damaged by an instantaneous voltage; ;

A bridge diode rectifying the voltage supplied through the first switching transistor and the AC voltage supplied through the first and second silicon rectifiers to form a DC voltage;

A smoothing capacitor for smoothing the DC voltage output from the bridge diode;

It characterized in that it comprises a constant voltage diode for supplying the output voltage of the smoothing capacitor to a constant voltage and the central processing unit and a wireless signal receiver.

The transmitting unit,

A wall switch case incorporating a transmitter for transmitting a load control signal to a wireless signal according to a user's operation;

An operation switch protruding from the wall switch case and configured to be operated by a user;

It is formed on the lower part of the wall switch case, characterized in that provided with an attachment portion that can be attached to the wall.

According to the present invention, it is possible to extract the microcurrent by using the triac in the switch driver without using a separate power extractor as in the past to obtain the DC power required inside the receiver, thereby simplifying the circuit configuration of the receiver and size There is an advantage that can be minimized.

In addition, according to the present invention has a merit to make the transmitter in the form of a wall switch, and to be detachable where necessary, to prevent the loss of the transmitter and to facilitate the use.

Further, according to the present invention, by preventing the instantaneous voltage and supplying the supply voltage gradually increasing from the low voltage to the high voltage, there is an advantage of preventing the lamp from being damaged by the instantaneously supplied voltage when the lamp is turned on (lamp Extending the life 1.5 to 2 times, the lamp usually breaks down when the 220V high voltage is applied instantaneously, rarely while it is on or off).

1 is a circuit diagram of a conventional wireless switch device.
2 is a conceptual diagram of a wireless switch device according to the present invention.
3 is a circuit diagram illustrating an embodiment of a receiver of FIG. 2.
4 is a perspective view of the transmitter of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

2 is a schematic configuration diagram of a "wireless switch device" according to the present invention, and is largely composed of a load (lighting) 300, a driving receiver 100, and a transmitter 200.

The receiving unit 100 serves to extract a microcurrent through the gate of the triac from the line connecting the gate and the anode of the triac connected to the input commercial AC power line and use the internal driving power.

The transmitter 200 transmits a load control signal wirelessly to the receiver 100 according to a switch operation of a user.

As shown in FIG. 3, the receiver 100 includes a radio signal receiver 110 for receiving a load control signal transmitted wirelessly from the transmitter 200; And a central processing unit 120 for generating a load driving signal to search for a load control signal received by the radio signal receiver 110 to supply or cut off power to the load.

In addition, the receiving unit 100 is connected to a commercial AC power supply line (AC 220V) to supply power to the load (lighting) 300 or cut off the power supplied to the load, the microcurrent through the connection of the gate and the anode A triac T1 for outputting the gate to a gate; And first and second zener diodes ZD2 and ZD3 connected to the gate terminal of the triac T1 to output a microcurrent outputted through the gate terminal as a constant current.

In addition, the receiver 100 includes: first and second photocouplers U1 and U2 for generating an operation signal according to a load driving signal output from the central processing unit 120; First and second switching transistors Q3 and Q4 which perform a switching operation according to the operations of the first and second photocouplers U1 and U2; First and second silicon rectifiers (Q1) (Q2) for supplying or cutting off commercial AC power for driving a load according to the operation of the first and second switching transistors (Q3) (Q4); Between the first and second switching transistors Q3 and Q4 and the first and second silicon rectifiers Q1 and Q2, respectively, the lamp is damaged by the instantaneous voltage by gradually increasing the supply voltage. First and second charge and discharge capacitors (C7) (C8) for preventing them; A bridge diode (BD) for rectifying the voltage supplied through the first switching transistor (Q3) and the AC voltage supplied through the first and second silicon rectifiers (Q1) and (Q2) to make a DC voltage; A smoothing capacitor C2 for smoothing the DC voltage output from the bridge diode BD; It includes a constant voltage diode (ZD1) for supplying the output voltage of the smoothing capacitor (C2) to a constant voltage to the central processing unit (120) and the radio signal receiver (110).

Meanwhile, as illustrated in FIG. 4, the transmitter 200 includes a wall switch case 201 having a transmitter configured to transmit a load control signal as a radio signal according to a user's operation; An operation switch 202 formed to protrude from the wall switch case 201 and operated by a user; It is provided on the bottom of the wall switch case 201 is provided with an attachment portion 203 that can be attached to the wall.

In the wireless switch device according to the present invention configured as described above, the triac T1 in an initialization state in which the user does not operate the switch 202 provided in the transmitter 200, that is, in a state in which the load (light) 300 is turned off. The microcurrent is extracted through the gate of.

Here, the triac T1 has a characteristic in that when the gate and one anode are electrically connected to each other, the microcurrent is output to the gate even when the supply power is not supplied to the load. This is due to the nature of the triac circuit itself.

Therefore, the present invention extracts a fine current as a power source through the gate of the triac T1 even when the lighting 300 is not turned on by using the characteristics of the triac as described above, and the first and second zener diodes ZD2. It is made into constant current through (ZD3).

The reason why the first and second zener diodes ZD2 and ZD3 are combined in different directions is to process both the + periodic voltage and the -periodic voltage because the input voltage is an AC voltage.

The currents output through the first and second zener diodes ZD2 and ZD3 are applied to the collector of the first switching transistor Q3 after passing through the resistor R8. Lighting signal) does not occur, so there is no load driving signal output from the central processing unit 120 (low state), so that the first photocoupler U1 does not operate, and the first switching interlocked therewith. A high signal is applied to the base terminal of the transistor Q3, and the first switching transistor Q3 is turned on. Therefore, the voltage applied to the collector of the first switching transistor Q3 is transferred to the bridge diode BD through the emitter terminal.

The bridge diode BD rectifies the input AC voltage into a DC voltage. The rectified DC voltage is smoothed through the smoothing capacitor C2 and then constant voltage (for example, 4V) through the constant voltage diode ZD1. After this is supplied to the driving signal (VCC) to the radio signal receiver 110 and the central processing unit 120.

Therefore, the wireless signal receiver 110 and the central processing unit 120 are supplied with driving power without using a separate power extractor, and thus the radio is always operated regardless of whether the load is driven or not driven and transmitted from the transmitter. The wireless signal reception standby state capable of receiving a signal may be maintained, and a load driving signal capable of controlling a load according to the reception of the radio signal may be maintained.

As such, the present invention does not need to include a separate power extracting unit for extracting power for driving a wireless signal receiver or a central processing unit, an expensive high voltage capacitor, and a high voltage resistor, thereby simplifying the circuit configuration of the overall receiving unit. There is an advantage that can reduce the cost as well as downsizing the size of the receiver. In this case, when the receiver is miniaturized, the utilization of space is increased from an installation point of view, and the convenience of installation is increased.

On the other hand, in a state where the radio signal receiver 110 waits for reception of a radio signal transmitted from the transmitter 200, when a radio signal for load control (for example, lighting is turned on) is received, the radio signal receiver 110 receives the signal and processes the signal. The digital signal is converted and transmitted to the central processing unit 120.

The central processing unit 120 analyzes the transmitted digital received signal and outputs a load driving signal (for example, a high signal) for driving the load if the lighting is turned on.

When a high signal is output from the central processing unit 120, current flows through the photodiodes of the first and second photo couplers U1 and U2 to generate an optical signal, and the phototransistor turns on the optical signal generated. The base stages of the first and second switching transistors Q3 and Q4 are set to a low potential state to turn off the first and second switching transistors Q3 and Q4. Therefore, the first and second silicon rectifiers Q1 and Q2 start to operate, and as a result, the triac T1 also switches to supply the driving power to the load 300.

That is, when the first and second switching transistors Q3 and Q4 are turned off, high potentials are applied to the gate terminals of the first and second silicon rectifiers Q1 and Q2, so that the first and second silicon rectifiers ( When Q1) (Q2) operates and applies an alternating voltage applied to the AC input terminals P1 and P2 to the bridge diode BD in accordance with a cycle, there is a way for the gate current of the triac T1 to flow in large quantities. Finally, the triac T1 is turned on so that the load (lighting) is turned on.

At this time, if the first and second charge / discharge capacitors C7 and C8 are turned off momentarily, when the power is supplied, the lamp (light) may be damaged by the instantaneous voltage. Therefore, the supply voltage is gradually increased from the low voltage to the high voltage. Slow charging and discharging operations are performed.

The bridge diode BD connects the gate current of the triac T1 with P1 and rectifies the input AC voltage into a DC voltage. The rectified DC voltage is smoothed through the smoothing capacitor C2 and then the constant voltage diode. After a predetermined voltage (for example, 4V) through ZD1, the wireless signal receiver 110 and the central processing unit 120 are supplied to the driving power supply VCC.

Meanwhile, the transmitter 200 of the present invention operates in the same manner as the remote controller transmitter in the existing wireless switch device, and transmits a radio signal for load control according to a user's operation. Here, conventionally, there was an inconvenience of finding a remote controller every load control because the transmitter was made in a remote control state, but in the present invention, as shown in FIG. The inconvenience of looking for will be eliminated, and the convenience of operation will be provided.

The transmitter 200 includes a wall switch case 201 formed similarly to a general wall switch, and an operation switch 202 for lighting on or lighting off is provided at a predetermined position on the upper surface of the wall switch case 201. . It is preferable to protrude the operation switch 202 for convenience of operation. In the lower surface of the wall switch case 201, the attachment portion 203 is formed so that the wall switch case 201 can be arbitrarily attached to the wall. Therefore, the user is to attach the transmitter 200 to the position desired by the attachment unit 203.

Here, the transmitter 200 has a built-in transmitter for transmitting a wireless signal according to the operation of the user operation switch 202, such a transmitter can be implemented in the same way as the transmitter embedded in the remote control transmitter in the existing wireless switch device , Detailed description is omitted.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100... Receiver
110 ... Radio signal receiver
120 ... Central Processing Unit
T1... Triac
U1, U2... First and second photo coupler
ZD2, ZD3... Zener diode
200 ... Transmitter
300 ... Load (light)

Claims (4)

In the wireless switch device,
A receiver which extracts a microcurrent through the gate of the triac from the line connecting the gate of the triac and the anode connected to an input commercial AC power line and uses the internal current as a driving power source;
And a wall mounted transmitter for transmitting a load control signal wirelessly to the receiver.
The method according to claim 1, The receiving unit,
The triac connected to the commercial AC power line to supply power to the load (light) or to cut off the power supplied to the load, and output a microcurrent to the gate through a connection line between the gate and the anode;
And a first and second zener diodes connected to the gate terminal of the triac and outputting a microcurrent output through the gate terminal by making a constant current.
The method according to claim 1, The receiving unit,
Wireless switch device, characterized in that to prevent damage to the lamp by using a method of gradually turning on the lamp instead of the method of turning on the lamp instantaneously.
The method of claim 1, wherein the transmitting unit,
A wall switch case incorporating a transmitter for transmitting a load control signal to a wireless signal according to a user's operation;
An operation switch protruding from the wall switch case and configured to be operated by a user;
Wireless switch device is formed in the lower portion of the wall switch case having an attachment portion that can be attached to the wall.

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