KR102212122B1 - Panel board embedded emergency power supply for 2-wire 1-light and emergency light device using it - Google Patents

Abstract

A distribution board with 2-wires 1-light type emergency power supply comprises: an automatic transfer switch provided in the distribution board, wherein normal power and emergency power are connected with each other through a line L and a line N; a normal power connector to excite an MCCB relay coil when the normal power is input thereto; an emergency power switching unit to block power supply to a rear end while the normal power is input, and to supply DC voltage at a predetermined level from the emergency power when fire occurs to operate a fire sensing relay; a half wave control signal generator to generate a half wave control signal for a predetermined time constant using a DC voltage at a predetermined level output from the emergency power switching unit; and a signaling unit including an MCCB relay switch connected with a load side in series on the line L and a switching element connected with the MCCB relay switch in parallel to be controlled according to the half wave control signal.

Description

Distribution board with built-in 2-wire 1-light type emergency power supply and emergency lighting equipment using the same {PANEL BOARD EMBEDDED EMERGENCY POWER SUPPLY FOR 2-WIRE 1-LIGHT AND EMERGENCY LIGHT DEVICE USING IT}

The present invention is a two-wire, one-light type emergency power supply device that operates as a sensor lamp by a constant power source as a single lamp, and operates only as an emergency lamp irrespective of sensing of the sensor by reading the emergency power in the event of a power failure or fire. It relates to a distribution board with built-in and emergency lighting equipment using the same.

Currently, there are constant and emergency lights in one luminaire installed in the stairway between the floors of an apartment, the stairway of a high-rise building, the elevator hall of each floor, or other emergency passages underground. That is, two lamps are provided in one luminaire to form two circuits, four wires, and two lamps. In the luminaire configured with this, the sensor lamp is always turned on, and in case of an emergency, the emergency lamp is turned on individually.

1 is a schematic diagram of a four-wire two-light type according to the prior art. The luminaire consists of one sensor light that lights up when a sensor attached in the luminaire detects movement of a human body and one emergency light that lights up in an emergency.

The constant power supply and emergency generator are connected to the automatic transfer switch. Normal power is supplied to sensors in the luminaire through an automatic transfer switch at all times, and when the power is cut off and converted into an emergency due to a power outage, emergency power from the emergency generator is supplied to the emergency lighting in the luminaire through an automatic transfer switch (ATS). do.

When explaining the operation of a four-wire two-light type luminaire according to the prior art, the sensor in the luminaire that uses constant power at all times is in the standby state, and when the human body approaches the elevator hall or stairs, the infrared human body detection sensor, which is a proximity sensor. Is turned on by detecting and operating the human body, and automatically turns off after about 20 seconds when the human body passes, and switches to power saving mode.

In an emergency, the emergency power from the emergency generator is supplied to the emergency lighting in the luminaire through an automatic transfer switch (ATS) and is turned on.

Patent registration No. 10-1742867 LED sensor that automatically switches to emergency power in case of power failure Patent registration No. 10-1794581 Emergency lighting device for combined use such as sensors Patent registration No. 10-1917979 Emergency light combined sensor light control device Utility model registration No. 20-0478477 Security light combined use sensor light

The present invention is a two-wire one-light type emergency power supply device that uses only two wires as a sensor lamp at all times and as an emergency lighting lamp in case of an emergency by detecting the transfer from the constant power supply to the emergency power using the voltage difference. The purpose is to provide a built-in distribution board and emergency lighting devices using the same.

The distribution board with a built-in two-line one-light type emergency power supply device according to the present invention includes: an automatic transfer switch in which constant power and emergency power are connected through L lines and N lines; A constant power connection unit that excites the MCCB relay coil when the constant power is applied; An emergency power switching unit that cuts off the supply of power to the rear end while the constant power is applied, and supplies a DC voltage of a predetermined level from the emergency power when a fire occurs and the fire detection relay operates; A half-wave control signal generator for generating a half-wave control signal for a predetermined time constant by using a DC voltage of a predetermined level output from the emergency power switching unit; And a signal transmission unit including an MCCB relay switch serially connected to the load side on the L line, and a switching element connected in parallel with the MCCB relay switch and controlled by the half-wave control signal.

Preferably, the constant power connection unit includes: the MCCB relay coil disposed between the L line and the N line; And a second relay switch connected in series with the MCCB relay coil.

Preferably, the emergency power switching unit comprises: a second photocoupler light receiving unit operating according to light emission of a second photocoupler light emitting unit that emits light when the constant power is supplied; A third transistor for switching opposite to the operation of the second photo coupler light receiving unit; And a second transistor that switches in response to an operation of the third transistor.

Preferably, the half-wave control signal generator comprises: a charging unit for charging the DC voltage of the predetermined level with a predetermined time constant; A fourth transistor turned on after charging of the charging unit; A third photocoupler light-emitting unit emitting light in response to the turn-on of the fourth transistor; A third photocoupler light-receiving unit turned on according to light emission from the third photocoupler light-emitting unit; A seventh diode forward coupled between the L line and the drain terminal of the third photocoupler light receiving unit; And an eighth diode that is reversely coupled between the L line and a source terminal of the third photocoupler light receiving unit, and a photodiode that is controlled to an output of the source terminal of the third photocoupler light receiving unit.

In addition, in the emergency lighting fixture using a distribution board with a built-in two-line one-light emergency power supply device according to the present invention, the rectifier for rectifying the AC voltage applied to the L line to a DC voltage of a predetermined level; A constant power cutoff unit configured to cut off the constant power when the rectified voltage output from the rectifier is higher than or equal to the third zener voltage; An emergency power detector configured to detect an output from the rectifier as an emergency power source when the rectified voltage output from the rectifier is lower than the third zener voltage and higher than or equal to the fourth zener voltage and output a lighting maintenance signal; And an emergency power operating unit configured to maintain the emergency power in response to the lighting maintenance signal.

Preferably, the constant power cut-off unit comprises: a third Zener diode operating on the rectified voltage output from the rectifying unit and having the third Zener voltage; And a first transistor to which a base terminal is coupled to an output of the third zener diode.

Preferably, the emergency power detection unit comprises: a fourth zener diode connected in parallel with the first transistor and having a fourth zener voltage; And a first thyristor to which a gate terminal is coupled to the output of the fourth zener diode.

Preferably, the emergency power supply operation unit includes a fourth photocoupler light emitting unit disposed between the output terminal of the rectifying unit and the first thyristor.

Preferably, the fourth photocoupler light receiving part corresponding to the fourth photocoupler light emitting part is connected in parallel with the output of the human body detection sensor.

According to the distribution board with a built-in two-wire one-light emergency power supply device of the present invention and an emergency lighting device using the same, when switching from the regular power supply to the emergency power supply, a half-wave rectified voltage is supplied for a predetermined time and then a full-wave current voltage is supplied at all times. Since it can detect whether the power is cut off, a single lamp can be used as a sensor lamp at all times and as an emergency lighting fixture in case of an emergency with only two wires.

1 is a four-wire two-light type system diagram according to the prior art,
2 is a two-line one-light type system diagram according to an embodiment of the present invention,
3 is a DC power supply circuit diagram according to an embodiment of the present invention,
4 is a fire fighting power relay circuit diagram according to an embodiment of the present invention,
5 is a circuit diagram of a constant power supply control according to an embodiment of the present invention;
6 is an emergency power readout circuit diagram according to an embodiment of the present invention;
7 is an emergency power detection circuit diagram according to an embodiment of the present invention;
8 is a schematic diagram of a sensor operation according to an embodiment of the present invention, and
9 is a schematic diagram of a sensor operation according to another embodiment of the present invention.

Hereinafter, specific embodiments according to the present invention will be described with reference to the accompanying drawings. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

Throughout the specification, portions having similar configurations and operations are denoted by the same reference numerals. In addition, the drawings attached to the present invention are for convenience of explanation, and the shape and relative scale may be exaggerated or omitted.

In describing the embodiments in detail, overlapping descriptions or descriptions of technologies that are obvious in the art have been omitted. In addition, in the following description, when a certain part "includes" other components, it means that components may be further included in addition to the described components unless otherwise stated.

In addition, terms such as “~ unit”, “~ group”, and “~ module” described in the specification mean units that process at least one function or operation, which can be implemented by hardware or software or a combination of hardware and software. I can. In addition, when a part is electrically connected to another part, this includes not only a case in which it is directly connected but also a case in which it is connected with a different configuration in the middle.

Terms including ordinal numbers, such as first and second, may be used to describe various elements, but the elements are not limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a second component may be referred to as a first component, and similarly, a first component may be referred to as a second component.

2 is a two-line one-light type system diagram according to an embodiment of the present invention.

The two-wire one-light type luminaire according to an embodiment of the present invention is a method of using only one light as a sensor light by a commercial power source and a human body detection sensor at all times, and is turned on by an emergency power source in an emergency. Accordingly, it is possible to perform two functions with one light while reducing wiring, light bulbs, and utility costs by about half.

The two-wire one-light type luminaire according to an embodiment of the present invention is connected to a constant power supply and an emergency generator through an automatic transfer switch. Normal power is supplied to the sensors in the luminaire through the automatic transfer switch at all times, and the sensor in the luminaire is in the standby state, and when the human body approaches the elevator hall or stairs, the proximity sensor infrared human body detection sensor detects the human body. It is turned on by operation, and automatically turns off after about 20 seconds when the human body passes, and switches to power saving mode. On the other hand, when the regular power is cut off and the power is switched to an emergency due to a power outage, the emergency power from the emergency generator is supplied to the emergency lighting in the luminaire through an automatic transfer switch (ATS) and is lit.

3 is a DC power supply circuit diagram according to an embodiment of the present invention.

The DC power supply circuit disposed in the distribution panel in which the two-wire one-light type emergency power supply device according to an embodiment of the present invention is built includes a filtering unit 310, a rectifying unit 320, and a constant voltage output unit 330 do.

The filtering unit 310 includes resistors and capacitors R1 and C1 connected in parallel with the surge protection varistor TNR1, and absorbs a surge current included in the constant power or emergency power supplied to the L and N lines.

The rectifying unit 320 rectifies the AC voltage output from the filtering unit 310 to a DC voltage.

The constant voltage output unit 330 includes a second capacitor C2, a third capacitor C4, and a first zener diode ZD1 connected in parallel with the rectifier 320, and a predetermined level output from the rectifier 320 DC voltage is constantly output.

4 is a fire fighting power relay circuit diagram according to an embodiment of the present invention.

The fire fighting power relay circuit disposed in the distribution board with a built-in two-wire one light type emergency power supply device according to an embodiment of the present invention is a fire that connects the fire power 410 to both ends of the fire relay coil 430 when a fire occurs. Including a detection switch 420, when the fire detection switch 420 is closed when a fire occurs, the fire power 410 is applied to the fire detection relay coil 430.

5 is a circuit diagram of a constant power supply control according to an embodiment of the present invention.

In the constant power supply control circuit disposed in the distribution board with a built-in two-wire one-light type emergency power supply device according to an embodiment of the present invention, emergency power cannot be supplied when the power is supplied at all times, and the sensor in the luminaire is not supplied to the sensor. Make it work by

That is, in the constant power supply control circuit disposed in the distribution panel in which the two-wire one-light emergency power supply device according to an embodiment of the present invention is built, the fire detection relay coil 510 of contact B is closed before the fire occurs. , The second relay coil 540 is excited while the constant power is applied to the first and second photocoupler light emitting units 525 and 520.

Specifically, the constant power supply control circuit disposed in the distribution panel in which the two-wire, one-light type emergency power supply device according to an embodiment of the present invention is built, includes a fire relay switch 510 of a contact B, a fire relay switch 510 A second photocoupler light-emitting unit 520 connected in parallel with the constant power through, a first photocoupler light-emitting unit 525 connected in parallel with the second photocoupler light-emitting unit 520, and a second photocoupler light-emitting unit 520 The first photocoupler light-emitting device 535 connected in parallel with the first photocoupler light-emitting part 525 and serially connected to the first photocoupler light-emitting part 525 and turned on in response to light emission from the first photocoupler light-emitting part 525 530, the first transistors Q1 and 540 turned on according to the output voltage of the turned-on photocoupler light receiving unit 530, and the first transistor 540 is turned on between the DC voltage of a predetermined level and the first transistor 540 It includes a second relay coil 550 that is excited according to the operation.

6 is an emergency power readout circuit diagram according to an embodiment of the present invention.

The emergency power readout circuit disposed in the distribution panel in which the two-wire one-light type emergency power supply device according to an embodiment of the present invention is built includes a constant power connection unit 610, an emergency power switching unit 620, and a half-wave control signal generator. 630, and a signal transmission unit 640.

The constant power connection 610 includes a second relay switch 611 connected in series with the MCCB relay coil 613 between the L line and the N line, and according to the excitation of the second relay coil 550, a second relay switch ( When 611) is closed, the MCCB relay coil 613 is excited. Accordingly, the MCCB relay switch 641 in the signal transmission unit 640 to be described later is closed, and constant power applied between the L line and the N line is applied to the emergency lighting. In this case, the emergency lighting is operated as a sensor according to the detection signal output by the sensor in the emergency lighting.

The emergency power switching unit 620 switches in response to the operation of the third transistor 623 and the third transistor 623 switching opposite to the operation of the second photocoupler light receiving unit 621 and the second photo coupler light receiving unit 621 It includes a second transistor (625). That is, when the second photocoupler light-receiving part 621 is turned on according to the light emission of the second photocoupler light-emitting part 520 in the constant power supply control circuit, the base terminal of the third transistor 623 is connected to the ground terminal. Transistor 623 is turned off. When the third transistor 623 is turned off, the collector terminal of the third transistor 623 and the base terminal of the second transistor 625 connected through the 18th resistor R18 are in the "H" state, 2 Transistor 625 is turned off. As a result, power is not supplied to the half-wave signal generator 630 at the rear stage while the power is always supplied.

On the other hand, when a fire occurs and the fire detection relay coil 430 is excited, the second relay coil 550 is elemented, and when the second photocoupler light receiving unit 621 is turned off, a charging voltage is applied to the ninth capacitor C9. When this starts to rise and the charging voltage charged to the ninth capacitor C9 is applied to the base terminal of the third transistor 623 and is turned on, the base terminal of the second transistor 625 becomes the “L” state 2 Transistor 625 is turned on. Accordingly, a DC voltage of a predetermined level supplied from the emergency power source is supplied to the half-wave signal generator 630 at the rear stage.

The half-wave control signal generator 630 includes a charging unit 631 charging the supplied DC voltage of a predetermined level with a predetermined time constant (eg, 2 to 4 seconds), and a fourth transistor that is turned on after charging the charging unit 631 ( Q4, 632, the third photocoupler light-emitting unit 633-1 that emits light in response to the turn-on of the fourth transistor 632, and a third photo that is turned on according to the light emission of the third photocoupler light-emitting unit 633-1 The coupler light receiving unit 633-2, the seventh diode 635 forward coupled between the L line and the drain terminal of the third photocoupler light receiving unit 633-2, the L line and the third photocoupler light receiving unit 633-2. The eighth diode 637 is reversely coupled between the source terminals, and a photodiode 639 that is controlled to and outputs the output of the source terminal of the third photocoupler light receiving unit 633-2. Since the fourth transistor 632 is turned off while the eighth capacitor C8 in the charging unit 631 is being charged, the third photocoupler 633 does not operate during the first half cycle of the emergency AC power passing through the L line. It does not pass through the seventh diode 635, and passes through the eighth diode 637 only during the lower half cycle of the emergency AC power supply that has passed through the L line. Therefore, the photodiode 639 also emits light only during the second half cycle of the emergency AC power supply and outputs a half wave control signal. Thereafter, when a predetermined time constant elapses and charging of the eighth capacitor C8 in the charging unit 631 is completed, the fourth transistor 632 is turned on, and the fourth transistor 632 is turned on, so that the third photocoupler 633 is turned on. It turns on. Accordingly, when a predetermined time constant elapses, the photodiode 639 emits light during the entire period of the upper and lower half cycles of the emergency AC power supply.

The signal transmission unit 640 is an MCCB relay switch 641 connected in series with the luminaire side as a load on the L line, and a half wave control signal that is connected in parallel with the MCCB relay switch 641 and output from the half wave control signal generator 630 It includes a photo triac 643 controlled to. The MCCB relay switch 641 is closed at all times to supply constant power to the load side. In case of emergency, the fire detection relay coil 430 is excited -> Fire detection relay switch 510 is opened -> Second relay coil 550 element- > Second relay switch 611 open -> MCCB relay coil 613 element -> Emergency power is supplied to the load side through photo triac 643 according to MCCB relay switch 641 opening. On the other hand, in case of an emergency, the photo triac 643 controlled by the photodiode 639 is controlled by a half-wave control signal for a predetermined time constant, and passes only the lower half of the emergency AC power. Pass against the cycle.

7 is an emergency power detection circuit diagram according to an embodiment of the present invention.

An emergency power detection circuit disposed in an emergency lighting with a built-in two-wire one-light type emergency power supply device according to an embodiment of the present invention includes a voltage divider 705, a rectifier 710, a limit voltage output unit 720, It includes a regular power cut-off unit 730, an emergency power detection unit 740, and an emergency power operation unit 750.

The voltage divider 705 divides the voltage applied to the L line.

The rectifying unit 710 rectifies the AC voltage applied to the L line to a DC voltage of a predetermined level.

The limit voltage output unit 720 includes a second zener diode ZD2 coupled between the output terminal of the rectifier 710 and the ground terminal, and the output voltage of the rectifier 710 is converted to a DC voltage (for example, 24) of a predetermined level. Volts) and outputs the limit voltage.

The constant power cut-off unit 730 includes a third zener diode (ZD3, 731) having a third zener voltage operating on the rectified voltage output from the rectifier unit 710, and a base terminal at the output of the third zener diode 731. It includes a first transistor 733 to be coupled. That is, when the third zener diode 731 is turned on, the first transistor 733 controlled by the output current of the third zener diode 731 is turned on, and the rectified voltage output from the rectifying unit 710 is not supplied to the rear end, Make sure it is applied to the ground.

The emergency power detection unit 740 includes the fourth zener diodes ZD4 and 741 having a fourth zener voltage lower than the third zener voltage of the third zener diode 731 and a gate terminal at the output of the fourth zener diode ZD4. It includes a first thyristor (SCR1, 743) is coupled. When the fourth zener diode 741 is half-wave rectified from the rectifier 710 and operates at a voltage output, the first thyristor 743 is turned on. Here, the third zener voltage Vzd3 of the third zener diode 731 is equal to or lower than the divided voltage of the full-wave rectified output from the rectifying unit 710 and higher than the divided voltage of the half-wave rectified output. In addition, the fourth zener voltage Vzd4 of the fourth zener diode 741 is equal to or lower than the divided voltage of the half-wave rectified output from the rectifying unit 710.

That is, when the half-wave rectified voltage is output from the rectifying unit 710 during a predetermined time constant during which the eighth capacitor C8 in the charging unit 631 is charged by switching from the constant power to the emergency power, the first thyristor 743 is turned on. . Thereafter, when charging of the eighth capacitor C8 in the charging unit 631 is completed and the full-wave rectified voltage is output from the rectifying unit 710, the third Zener diode 731 and the first transistor 733 in the constant power cut-off unit 730 Is turned on to discharge all the charging voltages of the third capacitor C3 connected in parallel with the first transistor 733, so that the fourth zener diode 741 is turned off. The first thyristor 743 maintains the turn-on state even at this time due to the operating characteristics of the thyristor that maintains the turn-on state as long as the reverse voltage is not applied.

The emergency power operation unit 750 includes a fourth photocoupler light emitting unit 751-1 disposed between the output terminal of the rectifying unit 710 and the first thyristor 743, and the first thyristor 743 is turned on. As long as the state is maintained, the fourth photocoupler light emitting unit 751-1 also continues to emit light. Meanwhile, the fourth photocoupler light receiving unit 751-2 is connected in parallel with the detection signal generation units 830 and 930.

8 is a schematic diagram of a sensor operation according to an embodiment of the present invention.

As a schematic diagram of a sensor operation according to an embodiment of the present invention, a rectifying unit 810, a constant voltage unit 820, a human body sensor 830, a detection signal generation unit 840, a switching control signal generation unit ( 850), a switching unit 860, and an emergency lighting 870 combined with a sensor.

The rectifier 810 rectifies and outputs an AC voltage to a DC voltage.

The constant voltage unit 820 converts the rectified voltage output from the rectifier unit 810 into a predetermined constant voltage (eg, 24 volts) and outputs the converted voltage.

When the human body detection sensor 830 is disposed at a predetermined position of the luminaire to sense a human body under the luminaire and outputs a human body detection signal, the detection signal generator 840 is controlled by the human body detection signal to output a detection signal.

The switching control signal generation unit 850 is controlled by a detection signal output from the detection signal generation unit 840 to generate and output a switching control signal. The switching control signal generation unit 850 may be implemented using a photodiode.

The switching unit 860 may be controlled by a switching control signal output from the switching control signal generator 850 to switch the emergency lighting 870 for both sensors. The switching unit 860 may be implemented using a photo triac.

The emergency lighting 870 for both sensors and the like using AC power can be implemented as, for example, an EL lamp.

On the other hand, as long as the emergency power is switched from the regular power to the emergency power and the emergency power is applied, the fourth photocoupler light-receiving unit 751-2 connected in parallel with the detection signal generation unit 840 maintains the turn-on state, so that it always operates as a sensor. The emergency lighting 870 combined with a sensor light maintains the lighting state.

9 is a schematic diagram of a sensor operation according to another embodiment of the present invention.

A sensor operation system diagram according to another embodiment of the present invention, including a rectifying unit 910, a constant voltage unit 920, a human body detection sensor 930, a switching unit 940, and an emergency light 950 disposed in the luminaire. do.

The rectifying unit 910 rectifies and outputs an AC voltage to a DC voltage.

The constant voltage unit 920 converts the rectified voltage output from the rectifier unit 910 into a predetermined constant voltage (eg, 24 volts) and outputs it.

When the human body detection sensor 930 is disposed at a predetermined position of the luminaire to detect the human body under the luminaire and outputs a human body detection signal, the switching unit 940 is controlled by the human body detection signal to switch the emergency lighting 950 for both sensors can do. The switching unit 940 may be implemented using a photo triac.

The emergency lighting 950 combined with a sensor light using a DC power source may be implemented as, for example, an LED lamp.

Meanwhile, as long as the emergency power is switched from the regular power to the emergency power and the emergency power is applied, the fourth photocoupler light-receiving unit 751-2 connected in parallel with the switching unit 940 maintains the turned-on state. The combined emergency lighting 950 maintains the lighting state.

The invention disclosed above can be variously modified within a range that does not damage the basic idea. That is, all of the above embodiments should be interpreted as illustratively and not limitedly. Therefore, the scope of protection of the present invention should be determined according to the appended claims rather than the above-described embodiments, and if the components defined in the appended claims are substituted with equivalents, it should be considered as belonging to the protection scope of the present invention.

310: filtering unit 320, 710, 810, 910: rectifying unit
330: constant voltage output unit
410: fire power supply 420: fire detection switch
430: fire detection relay coil
510: fire relay switch 520: second photocoupler light emitting unit
525: first photocoupler light emitting part 530: first photocoupler light receiving part
535: light emitting device for constant power display 540: first transistor
550: second relay coil
610: constant power connection 620: emergency power switch
630: half-wave control signal generation unit 640: signal transmission unit
705: voltage divider 720: limit voltage output unit
730: constant power off unit 740: emergency power detection unit
750: emergency power supply
820, 920: constant voltage unit 830, 930: human body detection sensor
840: detection signal generator 850: switching control signal generator
860, 940: switching unit
870, 950: emergency lighting combined with sensor light

Claims (9)

An automatic transfer switch in which the regular power and emergency power are connected through the L line and the N line; A constant power connection unit that excites the MCCB relay coil when the constant power is applied; An emergency power switching unit that cuts off the supply of power to the rear end while the constant power is applied, and supplies a DC voltage of a predetermined level from the emergency power when a fire occurs and the fire detection relay operates; A half-wave control signal generator for generating a half-wave control signal for a predetermined time constant by using a DC voltage of a predetermined level output from the emergency power switching unit; And a signal transmission unit including an MCCB relay switch serially connected to the load side on the L line, and a switching element connected in parallel with the MCCB relay switch and controlled by the half-wave control signal,
The constant power connection unit may include the MCCB relay coil disposed between the L line and the N line; And a second relay switch connected in series with the MCCB relay coil,
The emergency power switching unit may include a second photocoupler light receiving unit operating according to light emission of a second photocoupler light emitting unit that emits light when the constant power is supplied; A third transistor for switching opposite to the operation of the second photo coupler light receiving unit; And a second transistor that switches in response to an operation of the third transistor.
A distribution board with a built-in 2-wire, 1-light type emergency power supply.
delete delete An automatic transfer switch in which the regular power and emergency power are connected through the L line and the N line; A constant power connection unit that excites the MCCB relay coil when the constant power is applied; An emergency power switching unit that cuts off the supply of power to the rear end while the constant power is applied, and supplies a DC voltage of a predetermined level from the emergency power when a fire occurs and the fire detection relay operates; A half-wave control signal generator for generating a half-wave control signal for a predetermined time constant by using a DC voltage of a predetermined level output from the emergency power switching unit; And a signal transmission unit including an MCCB relay switch serially connected to the load side on the L line, and a switching element connected in parallel with the MCCB relay switch and controlled by the half-wave control signal,
The half-wave control signal generator includes: a charging unit for charging the DC voltage of the predetermined level with a predetermined time constant; A fourth transistor turned on after charging of the charging unit; A third photocoupler light-emitting unit emitting light in response to the turn-on of the fourth transistor; A third photocoupler light-receiving unit turned on according to light emission from the third photocoupler light-emitting unit; A seventh diode forward coupled between the L line and the drain terminal of the third photocoupler light receiving unit; An eighth diode coupled in a reverse direction between the L line and the source terminal of the third photocoupler light receiving unit, and a photodiode controlled to an output of the source terminal of the third photocoupler receiving unit
A distribution board with a built-in two-wire, one-light type emergency power supply.
In the emergency lighting fixture using a distribution board with a built-in two-line one-light type emergency power supply device of claim 1,
A rectifier rectifying the AC voltage applied to the L line to a DC voltage of a predetermined level;
A constant power cutoff unit configured to cut off the constant power when the rectified voltage output from the rectifier is higher than or equal to the third zener voltage;
An emergency power detector configured to detect an output from the rectifier as an emergency power source when the rectified voltage output from the rectifier is lower than the third zener voltage and higher than or equal to the fourth zener voltage and output a lighting maintenance signal; And
Emergency power operation unit configured to maintain the emergency power in response to the lighting maintenance signal
Emergency lighting equipment using a distribution board with a built-in two-wire one-light type emergency power supply device including.
The method of claim 5, wherein the constant power cut-off unit,
A third zener diode operating on the rectified voltage output from the rectifying unit and having the third zener voltage; And
A first transistor having a base terminal coupled to the output of the third zener diode
Emergency lighting equipment using a distribution board with a built-in two-wire one-light type emergency power supply device including.
The method according to claim 6, wherein the emergency power detection unit,
A fourth zener diode connected in parallel with the first transistor and having a fourth zener voltage; And
A first thyristor having a gate terminal coupled to the output of the fourth zener diode
Emergency lighting equipment using a distribution board with a built-in two-wire one-light type emergency power supply device including.
The method of claim 7, wherein the emergency power operation unit,
An emergency lighting device using a distribution board with a built-in two-wire one-light type emergency power supply device including a fourth photocoupler light emitting part disposed between the output end of the rectifying part and the first thyristor.
The method of claim 8,
An emergency lighting device using a distribution board with a built-in two-wire one-light type emergency power supply, characterized in that the fourth photocoupler light-receiving unit corresponding to the fourth photocoupler light-emitting unit is connected in parallel with the output of the human body detection sensor.

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