KR200422403Y1 - Structure of remote controllable ballast for lamp - Google Patents

Abstract

The present invention relates to a ballast for a lamp capable of wireless remote control, comprising: an RF receiver configured on a single printed circuit board (PCB) and receiving a light on or off control signal at a radio frequency from an RF transmitter at a remote point; A relay receiving a commercial power of 220V and interrupting an output; Receiving a control signal from the RF receiver, and controlling the on / off control of the relay according to the control signal and the communication and control protocol stored in the memory; A line filter and a surge protection circuit connected in series with an output terminal of the relay to remove noise of a power supply passing through the relay and to block a surge current such as a thunderstorm; A rectification and power factor correction circuit connected in series with the line filter and a surge protection circuit to convert commercial AC power into DC power and to compensate for the power factor of the converted DC power; An inverter receiving the output of the rectification and power factor correction circuit and outputting a square wave corresponding to a pulse width modulation (PWM) signal according to an oscillation signal of a PWM controller; And an LC resonant circuit receiving a square wave output from the inverter and resonating the same, and outputting a sinusoidal wave of high frequency. According to the present invention, a security light, a warning light, etc. installed at an inaccessible point is provided. Wireless remote control and high-voltage alternating current supply to the lamps can be performed by a device implemented on a single board, which can shorten installation time, reduce installation costs, and possibly breakdown due to short circuits. In addition to minimizing the maintenance cost by preventing, there is an effect that can not hurt the aesthetics of the installation point of these lamps due to the installation of lamps, such as security lights, alarm lights.

Lamp, ballast

Description

Ballast structure for lamps capable of wireless remote control {STRUCTURE OF REMOTE CONTROLLABLE BALLAST FOR LAMP}

1 is a configuration diagram of a ballast for a lamp capable of wireless remote control according to the present invention.

           Explanation of symbols on the main parts of the drawings

10: PCB (Printed Circuit Board) 12: Antenna

14 band pass filter 16 mixer

18: phase locked loop 20: intermediate frequency filter

22, 26: amplifier 24: intermediate frequency detector

28: microcomputer 30: memory

32: relay 34: line filter and surge protection circuit

36: rectification and power factor correction circuit 38: auxiliary power supply

40: PWM control unit 42: Inverter

44: LC resonance circuit 46: transformer

48: rectifier circuit 50: constant voltage circuit

52: commercial power 54: timer

56 lamp

The present invention relates to a lamp ballast capable of wireless remote control, and more particularly, to repair or replace, such as a ballast used for security lamps installed on top of power poles or building walls, or warning lamps installed on the tip of a warning tower. The present invention relates to a ballast for a wireless remote control capable of turning on and off a lamp by wirelessly controlling a ballast installed at a difficult point.

In order to remotely control the lamp, the wireless receiver was connected to the lead wire between the ballast and the commercial power supply integrated with the lamp housing.

The separate use of such a radio receiver causes many problems as follows.

First of all, safety lights, such as security lights and warning lights, are all installed at locations that are difficult for workers to access.In the installation process of security lights, the installation work of the wireless receiver must be carried out separately from the ballast and lamp installation work. It takes a lot, there is a problem that the installation cost increases. In particular, additional work is required in the installation process such as withdrawal of power from the commercial power supply (220V), connection of the drawn power to the receiver, and connection of power between the receiver and the safety device. It requires additional materials to increase the installation cost of security lights.

Then, there is a possibility of a short circuit at the connection portion between the commercial power lead-out line and the input line of the radio receiver and at the connection portion of the receiver output line and the input line of the ballast. As described above, safety lights, such as security lights and warning lights, are all installed at locations that are difficult for workers to access. If the ballast or the wireless receiver installed at such a point is broken by a short circuit, the maintenance work is very difficult, and the maintenance work costs are high. It becomes the factor which raises maintenance costs of security lights, warning lights.

Security lamps are mainly installed near overhead lines in buildings and on side walls of buildings, and if they are exposed to leader lines, connectors, and wireless receiver boxes near the poles and buildings, they may damage the aesthetics of the surrounding area. There is this.

The present invention devised to solve the problems of the conventional remote lighting device such as security light, warning light, etc. can shorten the installation work time, and provide a lamp ballast for wireless remote control that can reduce the installation cost. Its purpose is to.

Another object of the present invention is to provide a ballast for a wireless remote control capable of minimizing maintenance costs by preventing the possibility of failure due to short circuit.

Still another object of the present invention is to provide a ballast for a wireless remote control capable of harming the aesthetics of the installation point of these safety lights due to the installation of safety lights such as security lights, alarm lights.

The remote controllable lamp ballast according to the present invention for achieving the above object is formed on a single printed circuit board (PCB), RF receiving unit for receiving a radio signal on or off control signal from the RF transmitter of a remote point at a radio frequency ; A relay receiving a commercial power of 220V and interrupting an output; Receiving a control signal from the RF receiver, and controlling the on / off control of the relay according to the control signal and the communication and control protocol stored in the memory; A line filter and a surge protection circuit connected in series with an output terminal of the relay to remove noise of a power supply passing through the relay and to block a surge current such as a thunderstorm; A rectification and power factor correction circuit connected in series with the line filter and a surge protection circuit to convert commercial AC power into DC power and to compensate for the power factor of the converted DC power; An inverter receiving the output of the rectification and power factor correction circuit and outputting a square wave corresponding to a pulse width modulation (PWM) signal according to an oscillation signal of a PWM controller; And an LC resonant circuit configured to receive a square wave output from the inverter and to resonate the square wave to output a high frequency sine wave.

A programmable timer is provided between the commercial power supply, the line filter, and the surge protection circuit in parallel with the relay, and the commercial power is supplied to the line filter and the surge protection circuit at a set time regardless of the relay control of the microcomputer. It is desirable to periodically feed.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of a remote controllable lamp ballast according to the present invention in detail.

Hereinafter, a ballast for a remote control lamp according to the present invention will be described by taking a ballast for an electrodeless discharge lamp as an example. However, the present invention can be applied to a sodium lamp or a fluorescent lamp as it is. An electrodeless discharge lamp or an electrodeless lamp applies high frequency power to mercury vapor and buffer gas contained in a discharge tube to cause mercury vapor to emit photons, and causes the photons to irradiate the phosphor coated on the inner wall of the discharge tube to produce visible light. It is a high frequency induction discharge lamp to emit. The power used at this time is a sine wave power up to several MHz. The ballast is used to stabilize this high frequency sinusoid.

Recently, lamps such as security lamps and warning lamps are configured to send out RF (Radio Frequency) signals from a central control station so that lamps within a certain area can be turned on and off temporarily. Referring to FIG. 1, a feature of the present invention is the reception of an RF (Radio Frequency) signal transmitted from an RF transmitter of a central control station and the flashing of a lamp 56 formed on a single printed circuit board (PCB) 10. By circuit. To this end, the present invention includes a microcomputer 28 and a relay 32 that turn off the ballast according to the input signal of the RF receiver.

Referring to Figure 1, the RF receiver for receiving the on or off control signal at a radio frequency from the RF transmitter of a remote point in a loop type antenna 12 and a band pass filter (Band Pass Filter) for removing noise from the received signal ( 14), a phase-locked loop (18) providing a synchronous oscillation frequency for generating an intermediate frequency, and a radio signal and a phase-locked loop (18) passing through the band pass filter (12). Mixer 16 for generating an intermediate frequency of 21. 4 MHz by mixing the oscillation frequency, an intermediate frequency filter 20 for removing an unnecessary frequency signal from the output of the mixer 16, and the intermediate frequency The amplifier 22 which outputs the filter 20 and the intermediate frequency of 455 KHz are detected again from the output of the amplifier 22, and the frequency of 300 Hz in which a flashing command is encoded is detected from the detected 455 KHz intermediate frequency. Intermediate frequency It is composed of a duplexer 24 and an amplifier 26 for input to the microcomputer 28 described later by amplifying the output of the intermediate-frequency detector (24) is preferred.

The lighting of the lamp removes the noise of the power supply which has passed through the relay 32 by being connected in series with the relay 32 which receives 220V commercial power 52 and regulates the output, and the output terminal of the relay 32. It is connected in series with the line filter and the surge protection circuit 34 to block the surge current such as, and the line filter and the surge protection circuit 34 to convert commercial AC power into DC power and compensate the power factor of the converted DC power. The rectification and power factor correction circuit 36 and the output of the rectification and power factor correction circuit 36 are input, and a square wave corresponding to a pulse width modulation (PWM) signal according to the oscillation signal of the PWM controller 40 is output. The inverter 42 and the LC resonant circuit 44 for receiving a square wave output from the inverter 42 and resonating the same to output a sine wave of high frequency. The PWM controller 40 further includes an auxiliary power supply 38 for dropping and supplying the output of the rectification and power factor correction circuit 36.

The present invention is provided with a microcomputer 28 to receive a control signal from the RF receiving unit 12 to 24, and to turn on / off the relay 32 in accordance with the control signal and the protocol for communication and control stored in the memory 30 The lamp is turned off to turn the lamp on or off remotely.

In addition, it is preferable to provide a programmable timer 54 that can be set between the commercial power supply 52, the line filter, and the surge protection circuit 34 in parallel with the relay 32. The timer 54 turns on or off the lamp 56 by periodically supplying the commercial power 52 to the line filter and the surge protection circuit 34 at a set time irrespective of the relay control of the microcomputer 28. Done.

A feature of the present invention is that the commercial power supply 52 is input by a single lead wire, and the commercial power source is used as the power required for the lighting of the lamp 56 and the components of the RF receivers 12 to 26. . As described above, the commercial power supply 52 is input to the circuits 34 to 44 for high frequency oscillation via the relay 32 or the timer 54. In addition, the commercial power supply 52 is converted into an AC power source of 14V to 16V in the transformer 46, and then rectified to a DC power source of 12V to 14V in the rectifier circuit 46, and stable 5V DC in the constant voltage circuit 50. It is switched to a power source and put into each component of the RF receiver.

Hereinafter, with reference to Figure 1 will be described the operation of the lamp ballast capable of wireless remote control according to the present invention.

In general, the RF receiver is preferably a double super heterodyne method, and a signal received through the antenna 12 passes through a band pass filter (BPF) 14 to primarily improve noise, and phase synchronizer. The oscillation frequency of the loop 18 and the mixer 16 is mixed. This removes the RF carrier frequency and the mixer 16 generates an IF frequency (intermediate frequency) 21. 4 MHz. After amplifying the intermediate frequency signal through the amplifier 22 and passing the intermediate frequency detector 24 commercially available as an IC, the intermediate frequency of 455 KHz is detected again, and the detected 455 KHz intermediate frequency is again filtered, amplified, and detected. Through the process to generate a signal of 300Hz to the amplifier 26. This signal is used as a signal for controlling the microcomputer 28 and manages ON / OFF control of the ballast according to this signal. The microcomputer 28 stores its own communication and control protocol and other data in the memory 30 to control the relay 32 according to the stored data and the input signal.

As the power supplied to the RF receivers 12 to 26, as described above, the commercial power 52 which has drawn out the lamp 56 as the power for lighting is rectified and used.

The inverter 42 of the ballast is turned on / off (lights off) through the control of the relay 32 of the microcomputer 28. That is, the commercial power supply 52 passing through the relay 32 is sent to the rectification and power factor correction circuit 36 after the noise coming into the input through the line filter and the surge protection circuit is removed, and the rectification and power factor correction circuit 36. ) Converts the commercial power of AC 220V to DC, and compensates the converted DC to 98% or more, and supplies the boosted DC power to the inverter 42. The inverter 42 receives an oscillation signal from a conventional PWM controller 40 which generates an oscillation signal capable of amplitude and frequency control, and converts the input power of the rectification and power factor correction circuit 36 into a high frequency square wave. Will print. This square wave has the same frequency as the PWM signal frequency (for example, 2.5 MHz). The square wave signal is converted into a sine wave through the LC resonator 44 and supplied to the lamp 56.

According to the present invention having the above-described configuration, the wireless remote control and high-voltage AC current supply to the lamps, such as security lamps, warning lights, etc. which are installed at inaccessible points can be performed by a device implemented on a single substrate, Installation time can be shortened, installation costs can be reduced, and maintenance costs can be minimized by preventing the possibility of failure due to short circuits, and the installation point of these lamps due to the installation of lamps such as security lamps and warning lamps It does not hurt the beauty of the effect is.

Claims (2)

Formed on a single printed circuit board (PCB) 10, An RF receiver 12 to 24 which receives the on or off control signal at a radio frequency from an RF transmitter of a remote point; A relay 32 for receiving a 220V commercial power supply 52 and regulating the output; Receiving a control signal from the RF receivers 12 to 24 and controlling the on / off control of the relay 32 according to the control signal and the protocol for communication and control stored in the memory 30; A line filter and a surge protection circuit 34 connected in series with an output terminal of the relay 32 to remove noise of a power supply passing through the relay 32 and to block a surge current such as a thunderstorm; A rectification and power factor correction circuit 36 connected in series with the line filter and surge protection circuit 34 to convert commercial AC power to DC power and to compensate for the power factor of the converted DC power; An inverter 42 receiving the output of the rectification and power factor correction circuit 36 and outputting a square wave corresponding to a pulse width modulation (PWM) signal according to the oscillation signal of the PWM controller 40; And And an LC resonance circuit (44) for receiving a square wave output from the inverter (42) and resonating the same to output a sine wave of a high frequency. The method of claim 1, A programmable timer 54 is provided between the commercial power supply 52 and the line filter and the surge protection circuit 34 in parallel with the relay 32 to correlate with the relay control of the microcomputer 28. Stabilizer structure for a remote controllable lamp, characterized in that to periodically supply the commercial power (52) to the line filter and surge protection circuit 34 at a set time without.

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