KR200368410Y1 - Emergency light alleviating illumination as multistep in emergency operation - Google Patents

Abstract

The present invention reduces the burden on the capacity of the battery, and reduces the illuminance in multiple stages during emergency operation, so that the emergency light maintains the normal illuminance at the beginning of the accident in the event of an emergency, so that evacuees can easily identify the emergency light. It's about emergency lights.

According to the present invention, it is connected to the AC commercial power supply 10, AC ballast (20) connected to the AC commercial power supply (10) to receive the AC power to light the lamp 15, and AC commercial power supply (10) And a rectifier 25 for converting AC power into DC power, a battery 30 connected to the rectifier 25 to charge DC power and supplying DC power in case of power failure, and connected to the battery 30. In an emergency lamp including a DC ballast 35 for lighting the lamp 15 by the power of the storage battery 30 at the time of power failure, the power supply of the storage battery 30 is operated and a predetermined time interval to each of the plurality of output terminals during power failure A microcomputer 40 for outputting a control signal of the plurality of relays, a plurality of relays 41, 42, 43 connected to a plurality of output terminals of the microcomputer 40, and excited when a control signal is generated at the corresponding output terminal, and the DC ballast ( And a plurality of lamps disposed between the output terminal of the battery 35 and the lamp 15. Illuminance in multiple stages during emergency operation, characterized in that it comprises an illuminance setting unit 50 to reduce the illuminance of the lamp 15 in multiple stages when the relay 41, 42, 43 of the predetermined time interval is excited Mitigating emergency lights are provided.

Description

Emergency light alleviating illumination as multistep in emergency operation

The present invention relates to an emergency light in which the illuminance is reduced in multiple stages during an emergency operation, and more particularly, to an emergency light in which the illuminance is reduced in multiple stages during an emergency operation so that the evacuator can more easily identify the emergency light in an emergency situation.

In general, emergency lights are luminaires that enable evacuators to easily find emergency exits or escape routes in case of fire or other emergencies. In general, when an accident such as a fire occurs, a power failure is accompanied, so the emergency light is provided with a battery so that it can be continuously lit even during a power failure. When the emergency light is operated by the battery, the lamp is turned on by the DC ballast which switches the DC power to high frequency.The power consumption of the DC ballast is considerable, so a very high capacity battery is needed to light the lamp for a long time with 100% illuminance. Shall be. However, there is a limit in the size of the battery accommodated in the emergency light, and there is also a problem that the manufacturing cost increases with the increase of the capacity of the battery, the battery is usually equipped with a capacity enough to continue to light the lamp at 100% illuminance it's difficult. Accordingly, the conventional emergency light uses a battery that satisfies the small-sized regulations that should be turned on for at least one hour with 36% or more illuminance, and is usually configured to illuminate for at least one hour at 50% illuminance of the normal state during emergency operation. .

However, the conventional emergency light is suddenly lowered from 100% to 50% during the emergency operation, the evacuation suffers a tunnel effect that blinds the eyes in a moment, so that the evacuation early in the accident situation There is a problem in that the emergency light does not find the throne, increasing the casualties. In addition, when the smoke in the room due to a fire, etc., there is a problem that it is difficult for the evacuees to identify the emergency light because the illumination of the initial emergency light is too low.

The present invention is to solve the above problems, the object of the present invention is to light the emergency light for a predetermined time during emergency operation, and then reduce the illuminance of the emergency light in multiple stages, the burden on the capacity of the battery is less. In addition, it provides emergency lights that reduce the illuminance in multiple stages during the emergency operation that enables the early evacuees to easily identify the emergency lights.

1 is a block diagram conceptually showing the present invention

2 is a circuit diagram showing an embodiment of the present invention

Figure 3 is a graph showing the trend of reducing the illumination over time in the present invention

<Description of the symbols for the main parts of the drawings>

10. AC Commercial Power 15. Lamp

20. AC ballast 25. Rectifier

30. Storage battery 35. DC ballast

40. Micom 41.Relay 1

42. Second Relay 43. Third Relay

50. Illuminance setting part 55. Over-discharge detection part

According to the present invention, it is connected to the AC commercial power supply 10, AC ballast (20) connected to the AC commercial power supply (10) to receive the AC power to light the lamp 15, and AC commercial power supply (10) And a rectifier 25 for converting AC power into DC power, a battery 30 connected to the rectifier 25 to charge DC power and supplying DC power in case of power failure, and connected to the battery 30. In the emergency light including a DC ballast 35 for lighting the lamp 15 by the power of the battery 30 in the case of power failure, the power supply of the battery 30 is operated and a predetermined time interval to each of the plurality of output stages during power failure A microcomputer 40 for outputting a control signal of the plurality of relays, a plurality of relays 41, 42, 43 connected to a plurality of output terminals of the microcomputer 40, and excited when a control signal is generated at the corresponding output terminal, and the DC ballast ( And a plurality of lamps disposed between the output terminal of the battery 35 and the lamp 15. When the relays 41, 42, 43 are excited at predetermined time intervals, the illuminance setting unit 50 is configured to reduce the illuminance of the lamp 15 in multiple stages. Emergency lights are provided.

According to another feature of the present invention, the illuminance setting unit 50 is composed of a plurality of capacitors (C3, C4, C5) connected in parallel between the output terminal of the DC ballast 35 and the lamp 15, the plurality of When the relays 41, 42, and 43 are excited at predetermined time intervals, the capacitance of the capacitors C3, C4, and C5 is increased, thereby reducing the illuminance in multiple stages. Emergency lights are provided.

According to still another feature of the present invention, a zener diode (ZD2) and a capacitor (C6) are connected in parallel to a line connected to a positive terminal of the storage battery (30) and a resistor (R2) at one input terminal of the microcomputer (40). The over-discharge detection unit 55 is connected, and when the over-discharge detection unit 55 detects that the voltage of the storage battery 30 falls below the set voltage, the microcomputer 40 blocks the control signal at the output terminal to store the storage battery 30. Emergency light is provided to reduce the illuminance in multiple stages during the emergency operation, characterized in that to stop the discharge of.

Hereinafter, described with reference to the accompanying drawings, preferred embodiments of the present invention is as follows.

1 is a block diagram conceptually showing the present invention, referring to this, the emergency light is reduced in multiple stages during the emergency operation of the present invention is an AC commercial power source 10, the AC commercial power source 10 is connected to the lamp ( AC ballast 20 for driving the lighting 15), rectifier 25 for converting AC commercial power 10 into DC power, battery 30 connected to the rectifier 25 to store DC power, and the battery ( 30 is connected to the DC ballast 35 for driving the lamp 15 by the power supply of the storage battery 30 when the power failure is the same as the conventional.

At this time, the present invention is connected to the storage battery 30 is operated and connected to each output terminal of the microcomputer 40, which outputs a control signal of a predetermined time interval to each of the plurality of output terminals in the power failure, the output terminal When a control signal is generated and provided between a plurality of relays (41, 42, 43), the DC ballast 35 and the lamp 15 to be excited when the plurality of relays (41, 42, 43) is excited at a predetermined time interval The illuminance setting unit 50 is further provided to reduce the illuminance of the lamp 15 in multiple stages. Preferably, the illuminance setting unit 50 is a plurality of capacitors (C3, C4, C5) are connected in parallel between the output terminal of the DC ballast 35 and the lamp 15, each capacitor (C3, C4, C5) A switch which is closed when the relays 41, 42 and 43 are excited is connected in series to increase the capacitance of the capacitors C3, C4 and C5 at predetermined time intervals to reduce the illuminance of the lamp 15 in multiple stages. In addition, the present invention is provided with an over-discharge detection unit 55 for detecting the voltage of the storage battery 30 in any input terminal of the microcomputer 40, in order to prevent the over-discharge of the storage battery 30, this over-discharge detection unit When it is detected at 55 that the voltage of the battery 30 falls below the set value, the microcomputer 40 blocks the control signal so that the battery 30 is no longer discharged.

Figure 2 is a circuit diagram showing an embodiment of the present invention, with reference to this embodiment of the present invention in detail as follows. First, in the embodiment of Figure 2 is shown as a two-wire emergency light as an example, the present invention can be applied to both two-wire and three-wire emergency light. And, in the circuit diagram shown in Figure 2 will be briefly described for the portion that is not related to the technical idea of the present invention.

Referring to FIG. 2, a main relay (Relay4) operated by AC 220V is connected to the rear end of the main switch (SW), and the a contact switches of the main relay (Relay4) are respectively the AC ballast 20 and the lamp 15. The switch P1 for switching the connection of the switch, the switch P2 for switching the connection between the DC ballast 35 and the lamp 15, and the switch P3 for determining the charge and discharge of the battery 30. Meanwhile, the circuit diagram of FIG. 2 shows a state in which the AC commercial power supply 10 is out of power, that is, the DC ballast 35 is operated by the power supply of the battery 30 to drive the lamp 15.

The rectifier 25 includes a transformer T2 for stepping down the AC commercial power supply 10 and a half-wave or full-wave rectifier. The DC power rectified by the rectifier 25 is supplied to the storage battery 30 in a steady state to charge the storage battery 30. When the switch P3 of the main relay Relay4 is switched during the power failure, charging of the storage battery 30 is stopped, and power of the storage battery 30 is supplied to the DC ballast 35. The DC ballast 35 is composed of the switching transistors Q1 and Q2 and the boost transformer T1. The DC ballast 35 turns on the lamp 15 by switching the DC power at high frequency.

The microcomputer 40 has a VDD input terminal connected to the battery 30, and is operated by a power source of the battery 30. This is because the microcomputer 40 must be continuously operated even in the event of a power failure in the two-wire emergency lamp as shown in FIG. 2. At this time, in order to detect whether the AC commercial power supply 10 is out of power by the microcomputer 40, the signal detecting unit 60 which detects whether the AC commercial power supply 10 is input to any input terminal RA3 of the microcomputer 40. Is connected. The signal detection unit 60 includes a bridge diode D5 for rectifying an AC component and a zener diode ZD3 for constant voltage rectifying the rectified DC component. When a power failure is detected at the input terminal RA3 of the microcomputer 40, the microcomputer 40 outputs a control signal at predetermined time intervals to the plurality of output terminals RB7, RB6, and RB5. For example, the control signal may be output from the first output terminal RB7 at the same time as the power failure, and the control signal may be output from the second output terminal RB6 after 20 minutes and from the third output terminal RB5 after 20 minutes. Relays 41, 42 and 43 are connected to the respective output terminals RB7, RB6 and RB5, and these relays 41, 42 and 43 are excited by the control signals of the respective output terminals RB7, RB6 and RB5.

The illuminance setting unit 50 reduces the illuminance of the lamp 15 in multiple stages when the plurality of relays 41, 42, and 43 are sequentially excited at predetermined time intervals. It is provided between the lamps (15). In this embodiment, the illuminance setting unit 50 is configured by connecting a plurality of capacitors C3, C4, and C5 in parallel. The operation of the illuminance setting unit 50 will be described below. First, when the first relay 41 is excited at the same time as the power failure, the switch of the first relay 41 is closed, and the power of the storage battery 30 is supplied to the DC ballast 35. At this time, since the illuminance setting unit 50 connected between the output terminal of the DC ballast 35 and the lamp 15 has C3 and C4 open, only the capacitance of C5 acts, as shown in the graph shown in FIG. 3. 20 minutes before the control signal is generated at the second output terminal of the microcomputer 40, the lamp 15 is turned on at an illuminance close to 100%. Subsequently, when a control signal is generated at the second output terminal of the microcomputer 40, the second relay 42 is excited and the second relay switch Relay2SW is closed. Therefore, the illuminance setting unit 50 has a combined capacitance of C4 and C5, and the lamp 15 is turned on at 70% -80% illuminance for 20 minutes. As the illuminance of the lamp 15 is reduced, the use amperage of the storage battery 30 is also reduced. Next, when a control signal is generated at the third output terminal of the microcomputer 40, the third relay 43 is excited, and the third relay switch Relay3SW is closed, and the illuminance setting unit 50 includes C3, C4, and the like. It has a combined capacitance of C5, and the lamp 15 is turned on at 50% -60% illuminance for 20 minutes. Here, the illuminance of the lamp 15 reduced in multiple stages by the illuminance setting unit 50 can be determined by adjusting the capacitance of C3, C4, C5 and other parameters of the resistance element. In addition, in the present embodiment, the illuminance is reduced to three stages by way of example, but the illuminance may be reduced by dividing into more steps.

On the other hand, in the present invention, in order to start discharging when the battery 30 is not fully charged, a design for preventing the battery 30 from being overdischarged may be added. In this case, any one input terminal RA2 of the microcomputer 40 is connected via a positive terminal of the storage battery 30 and a resistor R2, and a zener diode ZD2 and a capacitor C6 are connected in parallel to each other. The predetection unit 55 is configured. In this case, in order to adjust the set value for detecting the overdischarge, the variable resistor VR1 may be further connected in series to the resistor R2 as shown in the circuit diagram of FIG. 2. When the voltage detected by the over-discharge detection unit 55 falls below the set value, the microcomputer 40 blocks the control signals output to the output terminals RB7, RB6, and RB5, thereby preventing the over-discharge of the storage battery 30.

As described above, the emergency light of which the illuminance is reduced in multiple stages during the emergency operation of the present invention outputs control signals at predetermined time intervals from the microcomputer 40 to the plurality of output terminals during a power failure, and the plurality of relays 41, 42 and 43 are sequentially excited, and as the relays 41, 42 and 43 are excited, the illuminance setting unit 50 is operated to reduce the illuminance of the lamp 15 in multiple stages. Therefore, during emergency operation, the illuminance of the emergency light does not suddenly drop, and maintains the illuminance in a steady state for a predetermined time, and then gradually lowers the illuminance, thereby increasing the capacity of the battery 30, and in case of an accident such as a fire, etc. Make it easier for pizzas to identify emergency lights and evacuate safely. In addition, the microcomputer 40 detects overdischarge of the storage battery 30 and stops discharging the storage battery during overdischarge, thereby extending the life of the storage battery 30.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

As described above, according to the present invention, while maintaining the illuminance of the steady state for a predetermined time during emergency operation, and then reduce the illuminance of the emergency light in multiple stages in the illuminance setting unit, while reducing the burden on the capacity of the battery, when an accident occurs Emergency lights can be provided in multiple stages of emergency lighting that enable evacuees to easily identify emergency lights early in the accident. In addition, the microcomputer detects the overdischarge of the battery and blocks the control signal during the overdischarge, thereby extending the life of the battery.

Claims (3)

AC commercial power supply (10), AC ballast (20) connected to the AC commercial power supply (10) is applied to the AC power supply to light the lamp 15, AC commercial power (10) connected to the AC power supply A rectifier 25 for converting to a power source, a battery cell 30 connected to the rectifier 25 to charge a DC power supply and supplying a DC power supply in case of power failure, and a storage battery 30 connected to the storage battery 30 during power failure In an emergency lamp including a DC ballast (35) for lighting the lamp 15 by the power of the power supply, the power supply of the storage battery 30 is operated and outputs a control signal at predetermined time intervals to a plurality of output terminals, respectively, during power outages. And a plurality of relays (41, 42, 43) coupled to the plurality of output terminals of the microcomputer (40), each of which is excited when a control signal is generated at the output terminal, and the output terminals of the DC ballast (35). The plurality of relays (41, 42, 43) provided between the lamp 15 A multi-stage to multi-stage in an emergency operation, characterized in that comprises a light intensity setting unit 50 for reducing the light intensity of lamp 15 is emergency lighting illuminance is alleviated when the woman at a predetermined time interval. According to claim 1, wherein the illuminance setting unit 50 is composed of a plurality of capacitors (C3, C4, C5) in parallel between the output terminal of the DC ballast 35 and the lamp 15, the plurality of relays When the (41, 42, 43) is excited at predetermined time intervals, the capacitance of the capacitors (C3, C4, C5) is increased to reduce the illuminance in multiple stages . The method according to claim 1 or 2, Zener diode (ZD2) and the capacitor (C6) parallel to the line connected to the positive terminal of the storage battery 30 and the resistor (R2) at any one of the input terminal of the microcomputer (40) When the connected over-discharge detection unit 55 is connected, and the over-discharge detection unit 55 detects that the voltage of the storage battery 30 falls below the set voltage, the microcomputer 40 cuts off the control signal at the output terminal to store the storage battery 30. Emergency light to reduce the illuminance in multiple stages during the emergency operation, characterized in that to stop the discharge.