KR20100009714A - Emergency exit lamp - Google Patents

Abstract

PURPOSE: An emergency exit lamp is provided to improve notice ability by making the both side of a sign board incline and by mounting a sign board on the both side of the case. CONSTITUTION: A lamp(60) comprises a plurality of LEDs and located inside PCB. A battery(40) supplies the power source to the lamp in the power outage. A circuit part receives the AC power source, supplies the power source to the lamp and charges the battery. A sign board(30) indicates an exit. A receiving part(11) comprises the lamp, the battery and the circuit part. The sign board is attached to the inner both sides of a declined part(16). A case is attached to the ceiling.

Description

Ceiling mounted double-sided emergency exit indicator light {EMERGENCY EXIT LAMP}

The present invention relates to an emergency exit indicator for guiding an emergency exit or an emergency passage so as to be installed in a ceiling of a corridor, a passage or an underground passage of a building so as to quickly evacuate in case of a fire or a power failure, and more particularly, as a light source. It uses low power LED and signs on both sides to guide emergency exits to help the evacuator recognize the emergency exit indicators faster and evacuate through the emergency exits. Emergency exit equipped with a charge monitoring circuit that monitors the state of charge of the battery to be supplied, and a switching circuit that automatically cuts off the commercial power and supplies the battery power when an abnormality (high or low voltage is supplied) to the commercial power. It is about indicator lights.

Emergency exit indicators are installed in indoors, aisles, and underpasses to help people evacuate through emergency passages during emergencies such as fires or power outages.

In general, it comprises a sign for guiding the emergency passage, an illumination lamp for illuminating the sign for easy identification, and a case in which the sign is coupled to the front surface and the illumination lamp is built-in.

At this time, the lighting lamp is normally turned on by receiving commercial power, and when the commercial power is cut off due to a fire or power failure, the lighting lamp is turned on by receiving power from a built-in battery.

Conventional emergency exit indicators are generally attached to one side of the wall opposite the emergency exit with a sign to guide the emergency exit.

In other words, the emergency exit indicator can be seen in only one direction,

If an emergency exit indicator is attached to the wall next to the passage, the evacuator will be embarrassed by the long-term situation such as a fire and will evacuate along the passage.There is a high risk that the emergency exit indicator attached to the wall next to the passage will not be recognized.

If it is attached to the ceiling of the aisle next to the emergency exit, the emergency exit indicator can be recognized in one direction (the direction in which the sign is viewed in front), but the emergency exit indicator cannot be recognized because the indication is not visible in the other direction.

That is, the emergency exit indicator light is provided only on one side as in the prior art has a limit that the evacuator recognizes the emergency exit indicator.

In addition, the emergency exit indicator must be equipped with a battery that can be charged in case the commercial power is cut off.

Conventional emergency exit indicators, as shown in 2005 Utility Model Registration No. 15106 "Emergency Exit Indicator Circuit", 2006 Utility Model Registration No. 9014 "LED Emergency Indicator", etc. It only charges, and there is no means to monitor the condition of the battery.

That is, the manager lacks a means to recognize whether the battery is electrically connected to the commercial power source (i.e., whether it can be charged), whether the battery is currently full or charging, or whether the battery is intact. It is cumbersome to dismantle the indicators for verification, and there is a risk that the indicators will not function properly because the battery will not supply power in case of an emergency and commercial power is cut off.

And the commercial power of our country is 220 volts, the 220 volts is always kept constant, does not flow into the emergency exit indicator. Sometimes high voltages are introduced, sometimes low voltages are introduced.

If commercial power is introduced at a high voltage, it may cause damage to a battery or various electronic devices. If the commercial power is supplied at a low voltage, the lighting lamp may be illuminated late and low light, and may not quickly and accurately guide an emergency passage.

Therefore, when commercial power flows into the high voltage or low voltage beyond the rated voltage (220 volts), it is necessary to use the power of the battery, not the commercial power for the power to turn on the lighting lamp.

However, the conventional emergency exit indicator is not provided with a means for this.

The present invention has been made to solve the above problems and needs, using a high brightness, semi-permanent life and low power consumption LED as a light source, and has signs on both sides so that the evacuator can easily recognize the emergency exit indicator light And it is attached to the ceiling on the passage, and the purpose of providing a ceiling-mounted double-sided emergency exit indicator that is reinforced waterproof and moisture-proof so that water or moisture is not introduced into the interior to prevent electrical accidents,

It is equipped with a circuit that can detect the condition of the battery to enhance the convenience of management, to prevent the occurrence of the malfunction of the indicator in the event of emergency, and to turn on the lighting lamp when the commercial power flows into high voltage or low voltage. It is an object of the present invention to provide an emergency exit indicator that can prevent a failure or malfunction of the indicator by providing a circuit for shutting off commercial power and connecting a battery as a power source.

Ceiling-attached emergency exit indicator light of the present invention for achieving the above object

Lighting lamp consisting of a plurality of LEDs mounted on the PCB at regular intervals;

A battery supplying power to the lighting lamp in case of power failure;

A circuit unit which receives a commercial AC power and supplies power to the lighting lamp and charges the battery;

Signs for emergency exits;

An upper portion is provided with an accommodating portion for accommodating the lighting lamp, the battery and the circuit portion, and a lower portion has an inclined portion which is inclined inwardly on both sides of the sign and is attached to the ceiling. .

And the contact portion between the case and the sign is characterized in that the gasket for waterproofing is interposed,

Exposed to the front surface of the case and electrically connected to the circuit unit,

And a first display lamp indicating whether a commercial AC power source is electrically connected to the battery, and a second display lamp indicating a charging state of the battery.

The circuit portion

A power supply circuit for charging the battery by stepping down the AC power supply to a predetermined level and directing the DC;

A feedback circuit which senses a voltage supplied to the lighting lamp and feeds it back to the power supply circuit so that the power supply circuit outputs a predetermined voltage;

A charge monitoring circuit connecting the power supply unit and the battery and monitoring the charging state of the battery to flash the first display lamp and the second display lamp;

When the voltage level of the commercial AC power input is out of the previous range, it characterized in that it comprises a switching circuit for electrically connecting the battery and the lighting lamp and at the same time to cut off the electrical connection of the power supply and the lighting lamp,

The charge monitoring circuit

A charging power supply unit including a first diode half-wave rectifying power input from the power supply circuit, a first resistor connected in series with the first diode and stepping down an input voltage to supply the battery;

A first display lamp driver connected in parallel with the charging power supply unit and including a first driver resistor to supply power input from the power supply unit to the first display lamp;

A second transistor connected in parallel with the first resistor and having an emitter connected to the first resistor, and a second transistor connected to the collector of the first transistor to supply power to the second display lamp; A second display lamp driver including a driver resistor, a second transistor having a base connected to the battery and a collector connected to the base of the first transistor, a zener diode connecting the base of the second transistor and the battery And an error monitor configured to turn on the second display lamp when an overcurrent or overvoltage is applied to the battery.

The switching circuit

A second diode for half-wave rectifying the input commercial AC power, a second resistor for stepping down the input voltage connected in series with the second diode and supplying it to the photocoupler, and a collector is connected to the photodiode of the photocoupler. A switching unit including a third transistor which is cut off when the voltage of the commercial AC power input is less than or equal to a reference minimum to stop the operation of the photocoupler;

A base connected to the power supply circuit, an emitter connected to the battery, and a collector connected to the lighting lamp, the switching transistor which is turned on when the photocoupler is inoperative to supply power of the battery to the lighting lamp; ,

The collector is connected to ground, the base is connected to the phototransistor of the porter coupler, the emitter is connected to the collector of the switching transistor through the power supply circuit, and the switching transistor when the voltage of the commercial AC power supply is higher than the reference maximum value. It is characterized in that it comprises a fourth transistor for conducting the power supply of the battery to the lighting lamp.

In the present invention having the configuration as described above, the entire sign is illuminated with high brightness by using the LED as a light source, high visibility, low power consumption, long life,

In addition, the signs are provided on both sides of the case, so that both sides of the signs are inclined inward, so that the evacuator can easily recognize the signs,

Prevents electrical accidents by preventing moisture or moisture from penetrating into the emergency exit indicator light through the gasket.

Equipped with a charge monitoring circuit, if there is an electrical problem with the emergency exit indicator, such as whether the commercial power supply is electrically connected to the battery (while charging is possible), whether the battery is full or charging, or if the battery is dropped or overcurrent flows. It is easy to check and check whether it is easy to manage and maintain, and it is equipped with a switching circuit to prevent the battery or electronic device from being damaged by the abnormal voltage or the illuminance of the lighting lamp. Minimization occurred.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a perspective view of a ceiling-mounted double-sided emergency exit indicator light according to an example of the invention, Figure 2 is an exploded perspective view of Figure 1,

As shown in the figure, the emergency exit indicator of the present invention includes a sign 30, a case 10, a gasket 20, an illumination lamp 60, a battery 40, and a circuit unit 100.

The sign 30 is attached to both the front and rear surfaces of the case 10, respectively, and the surface of the sign 30 to guide the emergency exit, such as a pattern indicating an emergency exit or an arrow or a phrase indicating the direction of the emergency or emergency passage. The cover is marked.

The case 10 includes a lighting unit 60, a battery 40, a circuit unit 100, and the like, and an accommodation unit 11 to protect them, and an inclined unit 16 to which the sign 30 is inclined and coupled. It is done by The accommodating part 11 is disposed at the top and fixed to the ceiling, and the inclined part 16 is disposed at the lower part of the accommodating part.

In addition, the accommodating part 11 is provided such that the first display lamp 51, the second display lamp 52, and the check switch 53, which are connected to the circuit part, are exposed to the outside. The light emitted is open to enter the sign 30.

In addition, the inclined portion 16 is closed on both sides and the lower surface, the upper surface is open for the incident light, the front and the rear is open so that the light is incident to the combined sign.

The housing 11 and the inclined portion 16 of the case is screwed, the inclined portion 16 and the sign 30 is also screwed.

And the gasket 20 is interposed on the contact surface of the 11, 16, 30 so that water or moisture does not flow into the inside, that is, waterproof and moistureproof. The gasket 20 is pressurized in the process of screwing them (11, 16, 30) to seal their gaps.

In addition, the inclined portion 16 on which the gasket is disposed may have a seating groove 18 on which the gasket 20 is seated.

The lighting lamp 60 is composed of a PCB 61 and a plurality of LEDs 62 mounted at predetermined intervals on the PCB, and is disposed in the center of the receiving portion 11 of the Z case 10 to be inclined. Radiates and internally. The LED 62 may be a high brightness chip LED.

The battery 40 is accommodated and mounted in the receiving portion 15 of the case 10, and is used to supply driving power to the lighting lamp 60 in an emergency such as a power outage, and lights the lighting lamp in an emergency for at least 12 hours. It has the capacity to make it.

The circuit unit 100 is composed of a plurality of electronic elements 103 mounted on the PCB 101, is accommodated in the receiving portion 15 of the case is mounted,

It is mounted so as to be exposed on the front of the case 10, the first display lamp 50 to indicate whether the commercial AC power is electrically connected to the battery 40 and the second display lamp to display the state of charge of the battery And 52 are electrically connected to a check switch 53 for inspecting the manager.

Hereinafter, the circuit unit will be described in detail with reference to FIGS. 3 to 5.

3 is a schematic block diagram of a circuit unit 100 including various electronic elements 72 mounted on a PCB 71, FIG. 4 is a detailed circuit diagram of a charge monitoring circuit, and FIG. 5 is a specific circuit diagram of a switching circuit.

First, as shown in FIG. 3, the circuit unit 100 includes a power supply circuit 120, a charge monitoring circuit 130, and a switching circuit 140.

The power supply circuit 120 is connected to the connector 110 which is connected to the commercial power input line to receive the commercial AC power, stepping down and rectifying the AC power received by the DC power, and through the charge monitoring circuit lighting lamp ( 60) and power to the first and second display lamps (51, 52).

The power supply circuit 120 includes a filter unit (not shown) including a coil and a capacitor for removing noise of a commercial AC power input thereto, and a transformer for stepping down the power passing through the filter unit to a voltage of a predetermined level. ), A rectifier (not shown) composed of a diode, a capacitor, etc. for rectifying and directing the power output from the transformer, and a voltage (or current) of a predetermined magnitude at all times by receiving feedback from the voltage (or current) supplied to the lighting lamp. ) Is configured to include a feedback unit (not shown) to be supplied to the lighting lamp.

The feedback circuit 150 senses the magnitude of the voltage (or current) supplied to the illumination lamp 160 and feeds it back to the power supply circuit 120 to control the on / off of the power supply circuit switching element to adjust the pulse width. By adjusting (PWM), the power supply circuit 120 can continuously supply a predetermined amount of voltage (or current) to the lighting lamp (60).

As shown in FIG. 4, the charge monitoring circuit 130 includes a charging power supply unit 131, a first display lamp driver 132, a second display lamp driver 133, and an error monitor 134.

The charging power supply unit 131 is composed of a first diode (D1) and a first resistor (R2, R3) connected in series to supply the power input from the power supply circuit 120 to the battery 40 to supply a battery Charge it. The first diode D1 half-wave rectifies the power input from the power supply circuit, and the first resistors R2 and R3 divide the half-wave rectified voltage into voltages and supply voltage to the battery.

The first display lamp driver 132 includes a first driver resistor R1 connected in parallel with the charging source supply unit, and receives the power input from the power supply circuit 120 and is connected in series. A driving voltage is applied to 51 to light the first display lamp.

The first driver resistor R1 serves to prevent the first display lamp from being damaged by preventing a surge voltage from being applied to the first display lamp 51.

In a state where power is input to the first display lamp driver 132 (that is, a state where commercial power is electrically connected to a battery through a power supply circuit and a charge monitoring circuit), the first display lamp 51 is It is always on, so the administrator can see if the battery is in a chargeable state.

The second display lamp driver 133 is connected to the first resistors R2 and R3 of the charging power supply unit 131 and is connected to the first transistor Q1 and the second driver resistor R5 connected in series. The second display lamp 52 is connected to the output side of the second driver resistor R5.

The first transistor Q1 has an emitter connected to the output side of the first diode D1, a base connected to the battery 40, and a collector connected to the second resistor R5.

When a charging current flows through the charging power supply 131, the charging current is turned on to apply a voltage to the second driver resistor R5, and the second driver resistor applies a driving voltage to the second display lamp 52 to display a second display. Turn on the lamp. That is, the second display lamp is turned on to indicate that the battery is being charged. The second driver resistor prevents the surge voltage from being applied to the second display lamp like the first driver resistor, thereby preventing the second display lamp from being damaged.

The error monitoring unit 134 includes a second transistor Q2 and a zener diode ZD connected to an output side of the second transistor and connected to a battery. (52) is turned off, and the second display lamp is turned on when an overcurrent flows through the battery or the battery is dropped.

The second transistor Q2 has a collector connected to the base of the first transistor Q1, an emitter connected to ground, and a base connected to the zeneride ZD.

When the battery 40 is full and the voltage applied to the first resistor of the charging power supply unit 131 decreases, the second transistor Q2 is turned off, and the second transistor is turned off to turn off the first transistor Q1 again. The display lamp 52 is turned off. When the first display lamp is turned on and the second display lamp is turned off, the administrator can know that the battery is full.

When an overcurrent flows due to a failure of the battery 40 or the battery is dropped, the charging voltage applied to the battery becomes higher than the voltage set in the zener diode ZD, so that the second transistor Q2 conducts to the first transistor and the second transistor. A voltage is applied to the resistance between the transistors, and accordingly, the first transistor Q1 is turned on so that the second display lamp 52 is turned on.

When the battery 40 is being charged, an overcurrent flows in the battery, or the battery is dropped (that is, there is a problem with the battery), the second display lamp 52 is turned on so that it is easy to distinguish the states immediately. However, since the charging current flows and the battery is not very long, it can be distinguished by the length of time that the second display lamp is turned on.

As shown in FIG. 5, the switching circuit 140 includes a switching unit 141, a switching transistor Q5, and a fourth transistor Q4.

The switching unit 141 includes a second diode D2, a photo coupler U, a second resistor R7, and a third transistor Q3 to switch when the input voltage level of the commercial power supply is out of the reference value. The transistor Q5 conducts to block commercial power from being supplied to the lighting lamp 60, and connects the battery 40 to the lighting lamp 60.

The second diode D2 receives a commercial AC power through the connector 110 and outputs half-wave rectified, and the second resistor R7 outputs the rectified voltage through the second diode D2. To the photodiode (PD),

The third transistor Q3 has a collector connected to the photodiode PD of the photocoupler, an emitter connected to an input terminal of a commercial AC power supply, and a voltage of the commercial AC power input is less than or equal to a reference minimum value (eg; AC150V or less) to prevent voltage from being applied to the photodiode of the photocoupler (U). When the photocoupler U is not operated (no signal is transmitted from the port diode to the port transistor), the switching transistor Q5 is immediately conducted to connect the battery 40 to the lighting lamp 60.

In addition, the capacitor C1 connected to the two input lines of the switching unit is for charging and discharging the input commercial AC power, and the resistor R6 connected to the front end of the capacitor C1 is charged and discharged at the capacitor C1. The number of resistors R8, R9, and R10 connected to the rear stage are determined to divide the current to determine the voltage applied to the base of the third transistor Q3 to determine the voltage according to the voltage of the commercial AC power input. Transistor Q3 is turned on (turned on) or cut off (turned off).

The switching transistor Q5 has a base connected to the power supply circuit 120, an emitter connected to the battery 40, a collector connected to the illumination lamp 60, and the photocoupler U. When in operation or when the fourth transistor Q4 is turned on, the power is supplied to supply the power of the battery 40 to the lighting lamp 60.

The fourth transistor Q4 has a collector connected to ground, a base connected to a phototransistor PT of the port coupler, and an emitter connected to a collector of the switching transistor Q5 through the power supply circuit. When the voltage of the commercial AC power supply is higher than or equal to the reference maximum, the switching transistor Q5 is turned on to supply the power of the battery 40 to the lighting lamp 60.

For example, when the voltage of the commercial AC power supply exceeds the reference maximum value (eg, 230 V), the fourth transistor Q4 is turned on, and the fourth transistor exceeds the voltage applied to the phototransistor PT of the porter coupler U. The power is increased beyond the voltage connected to the switching transistor through the emitter of N, and the voltage applied to the switching transistor Q5 is normally canceled so that the switching transistor is turned on, so that the battery power is supplied to the lighting lamp.

In the above description of the present invention, the ceiling-mounted double-sided emergency exit indicator having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified and changed by those skilled in the art. It should be interpreted as falling within the protection scope of the invention.

1 is a perspective view of the emergency exit indicator combined in accordance with the present invention.

2 is an exploded perspective view of FIG.

3 is a schematic block diagram of a circuit portion;

4 is a circuit diagram of a charge monitoring arc.

5 is a circuit diagram of a switching circuit.

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

10 case 20 gasket

30: Sign 40: Battery

60: lighting lamp 100: circuit

110: connector 120: power supply circuit

130: charge monitoring circuit 140: switching circuit

Claims (7)

Lighting lamp consisting of a plurality of LEDs mounted on the PCB at regular intervals; A battery supplying power to the lighting lamp in case of power failure; A circuit unit which receives a commercial AC power and supplies power to the lighting lamp and charges the battery; Signs for emergency exits; The upper part is provided with an accommodating part for accommodating the lighting lamp, the battery and the circuit part, and the lower part has an inclined part that is inclined inwardly on both sides of the sign and is attached to the ceiling. Ceiling mounted double-sided emergency exit indicator light. The method of claim 1, The contact portion between the case and the sign is interposed with a gasket for waterproofing, The inclined portion of the case in which the gasket is disposed, the ceiling mounting type double-sided emergency exit indicator light, characterized in that the seating groove for seating the gasket is formed. The method according to claim 1 or 2, Exposed to the front surface of the case and electrically connected to the circuit unit, And a second display lamp for indicating whether or not a commercial AC power source is electrically connected to the battery, and a second display lamp for indicating a state of charge of the battery. The method of claim 3, wherein the circuit portion A power supply circuit for charging the battery by stepping down the AC power supply to a predetermined level and directing the DC; And a feedback circuit configured to sense a voltage supplied to the lighting lamp and feed it back to the power supply circuit so that the power supply circuit outputs a voltage of a predetermined size. The method of claim 4, wherein the circuit portion A charge monitoring circuit connecting the power supply unit and the battery and monitoring the charging state of the battery to flash the first display lamp and the second display lamp; When the voltage level of the commercial AC power source is out of the previous range, the ceiling further comprises a switching circuit for electrically connecting the battery and the lighting lamp and at the same time blocking the electrical connection between the power supply and the lighting lamp. Attachable emergency exit indicator. The method of claim 5, wherein the charge monitoring circuit A charging power supply unit including a first diode half-wave rectifying power input from the power supply circuit, a first resistor connected in series with the first diode and stepping down an input voltage to supply the battery; A first display lamp driver connected in parallel with the charging power supply unit and including a first driver resistor to supply power input from the power supply unit to the first display lamp; A second transistor connected in parallel with the first resistor and having an emitter connected to the first resistor, and a second transistor connected to the collector of the first transistor to supply power to the second display lamp; A second display lamp driver including a driver resistor, a second transistor having a base connected to the battery and a collector connected to the base of the first transistor, a zener diode connecting the base of the second transistor and the battery And an error monitor configured to turn on the second display lamp when an overcurrent or overvoltage is applied to the battery. The method of claim 5 or 6, wherein the switching circuit A second diode for half-wave rectifying the input commercial AC power, a second resistor for stepping down the input voltage connected in series with the second diode and supplying it to the photocoupler, and a collector is connected to the photodiode of the photocoupler. A switching unit including a third transistor which is cut off when the voltage of the commercial AC power input is less than or equal to a reference minimum to stop the operation of the photocoupler; A base connected to the power supply circuit, an emitter connected to the battery, and a collector connected to the lighting lamp, the switching transistor which is turned on when the photocoupler is inoperative to supply power of the battery to the lighting lamp; , The collector is connected to ground, the base is connected to the phototransistor of the porter coupler, the emitter is connected to the collector of the switching transistor through the power supply circuit, and the switching transistor when the voltage of the commercial AC power supply is higher than the reference maximum value. And a fourth transistor configured to conduct electricity to supply the battery power to the lighting lamp.

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