JPH10106766A - Emergency illumination lighting circuit, emergency illumination lighting device, and emergency lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To put out lights of a lamp when unnecessary and keep charging a storage battery by only adding simple improvement even in constitution using a two wire power source line. SOLUTION: A lighting circuit has a single-pole switch 19 to which a bypass circuit 21 is connected in parallel, which is interposed between two wire power source lines 2a, 2b, and lets the specified micro-current flow in an off state and a sensitive lighting device switching means 14 which switches a lighting device so as to make an daily use lighting device 3 effective when current flowing through the two wire power source lines 2a, 2b is larger than the specified micro-current and make an emergency lighting device 11 effective when smaller than the specified micro-current. When the single-pole switch 19 is in an off state, micro-current is let to flow through the bypass circuit 21, the daily use lighting device 3 keeps the effective state, but the daily use lighting device 3 cannot keep the lighting state at this micro-current, and a lamp 4 puts out lights.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting circuit for disaster prevention, a lighting device for disaster prevention, and a lighting device for disaster prevention, which can turn off a lamp as an illumination load as required.

[0002]

2. Description of the Related Art In general, emergency lighting devices such as evacuation guide lights and emergency lights are normally lit at all times, irrespective of whether there is a power outage or the like. If it is clear that there is, it may be turned off, and some have a light-off switch.

[0003] In this type of emergency lighting system, it is necessary to use a storage battery as a power source for emergency lighting in an emergency, and the storage battery must be constantly charged in case of emergency. Therefore, it is necessary to continue charging the storage battery even if the lamp is turned off by the light-off switch when not needed. Conventionally,
As a device that satisfies such a demand, there is known a device in which a commercial AC power supply and a lighting device are connected by a three-wire power supply line formed by drawing three wires. According to this, the light-off function and the charge maintenance function can be maintained without any trouble by interposing the light-off switch in one of the three wires.

[0004]

However, it is sufficient if the facility is already equipped with a three-wire power supply line. However, drawing a new three-wire power line requires a large amount of work and is disadvantageous in terms of wiring. On the other hand, in the case of connecting between the commercial AC power supply and the lighting device side by the existing two-wire power supply line,
If the light-off switch is simply provided, the light-off switch is turned off, and the state becomes the same as that at the time of the power outage. As a result, it has become difficult to apply the present invention to general household disaster prevention lighting devices or the like, in which two-wire power supply lines are mostly used.

According to Japanese Patent Laid-Open Publication No. 57-163984, by reducing the voltage of a common power supply, a disaster prevention lighting device capable of turning off a lamp even with two-wire wiring and charging a storage battery can be provided. An apparatus is disclosed. However, according to the method disclosed in the publication, it is necessary to provide a voltage control device for reducing the power supply output voltage as a regular power supply and a current control device for controlling the charging current of the storage battery, and the circuit configuration is likely to be complicated.

Accordingly, the present invention provides a lighting system for disaster prevention which can turn off the lamp when not required and maintain the charge of the storage battery even when it is unnecessary, even with a configuration using a two-wire power supply line. It is an object to provide a circuit, a lighting device for disaster prevention, and a lighting device for disaster prevention.

[0007]

According to a first aspect of the present invention, there is provided a lighting circuit for lighting for disaster prevention, comprising: a two-wire power supply line connected to a commercial AC power supply; A one-side cut-off switch connected in parallel with a bypass circuit for passing a minute current; a regular lighting device that drives a lamp based on a commercial AC power supply and cannot maintain lighting with a current smaller than a predetermined minute current; An emergency lighting device for driving a lamp by using the storage battery as a power source; and a two-wire system in which a regular lighting device is enabled when a current flowing through a two-wire power line is equal to or more than a predetermined minute current. High-sensitivity lighting device switching means for switching the lighting device so that the emergency lighting device is effective when the current flowing on the power supply line is smaller than a predetermined minute current; It is Bei.

In the present invention, the normal lighting device normally lights the lamp based on the commercial AC power supply when the one-side cut-off switch is turned on. Further, when a large voltage drop occurs due to a power failure of a commercial AC power supply and the current flowing through the two-wire power supply line becomes extremely small or becomes zero, the lighting device switching means switches so that the emergency lighting device side becomes effective. The emergency lighting device turns on the lamp by using the power as a power source. On the other hand, when the light switch is turned off when lighting is not required, one of the two-wire power lines does not become open, and a predetermined minute current flows through a bypass circuit parallel to the light switch. Even with such a small current, the lighting device switching means with high sensitivity responds and makes the regular lighting device side effective. At this time, the normal lighting device side is effective, but the lighting of the lamp cannot be maintained by such a small current, so the lamp is turned off. At the same time, since the emergency lighting device cannot be switched to a valid state, the charging operation of the storage battery based on the minute current is continued, and the lamp lighting operation by the emergency lighting device is not performed. Therefore, basically, the lighting device switching means is provided with high sensitivity, and a simple cut-off switch having a predetermined bypass path is provided, so that the lighting device switching device can be easily applied to a two-wire power line type without any trouble. .

[0009] The lighting lighting circuit for disaster prevention according to the second aspect of the present invention,
A two-wire power supply line connected to a commercial AC power supply; a cut-off switch interposed on the two-wire power supply line and connected in parallel with a bypass circuit for supplying a small current when turned off; a lamp based on the commercial AC power supply A normal lighting device that cannot maintain lighting by a current smaller than a very small current flowing in the bypass circuit; a storage battery charged based on a commercial AC power supply; and an emergency lighting device that drives the lamp using the storage battery as a power supply. Lighting device switching means for switching the lighting device so that the normal lighting device is enabled when the commercial AC power is not interrupted and the emergency lighting device is enabled when the commercial AC power is interrupted.

[0010] In the present invention, the normal lighting device normally lights the lamp based on the commercial AC power supply when the one-off switch is turned on. Further, when the commercial AC power supply is interrupted, the lighting device switching means switches the emergency lighting device to be effective so that the emergency lighting device uses the storage battery as a power source to turn on the lamp. On the other hand, when the light switch is turned off when lighting is not required, one of the two-wire power lines does not become open, and a predetermined minute current flows through a bypass circuit parallel to the light switch. Even with such a small current, there is no power failure, so the lighting device switching means makes the regular lighting device side effective.
At this time, the regular lighting device is effective, but the lighting of the lamp cannot be maintained by such a small current.
The lamp goes off. At the same time, since the emergency lighting device cannot be switched to a valid state, the charging operation of the storage battery based on the minute current is continued, and the lamp lighting operation by the emergency lighting device is not performed. Therefore, basically, by simply providing a single-cut off switch having a predetermined bypass path, it can be simply applied to a two-wire power supply type without any trouble.

In each of the above-mentioned inventions, the regular lighting device may be a so-called ballast such as a current limiting inductor, but a device using an inverter circuit is also permitted. The point is that it is sufficient that the lighting of the lamp cannot be maintained in the power supply state where only a predetermined minute current flows, as well as in the power failure state.
The emergency lighting device turns on the lamp based on the DC voltage of the storage battery. If the lamp is a discharge lamp or the like, the emergency lighting device preferably includes an inverter circuit for generating and outputting a high-frequency output voltage. The lighting device switching means is 2
The connection state of the lamp is switched between the regular lighting device side and the emergency lighting device side according to the power supply state on the linear power supply line, and in accordance with the switching, whether the storage battery is the charging side or the discharging side. For example, a relay structure having a relay coil and a relay contact is allowed. In particular, the present invention can be easily realized by using a commercially available high-sensitivity relay sensitive to a minute current as in the invention of claim 4. The bypass circuit in parallel with the one-off switch turns off when the one-off switch is turned off.
What is necessary is just to include the impedance component which can make a minute electric current flow on the wire type power supply line. A good wall switch. According to the wall switch with the power indicator, as in the case of a normal lighting device, it can be realized by simple construction at a switch mounting location using an existing switch.

According to a fifth aspect of the present invention, there is provided a lighting device for disaster prevention,
A disaster lighting lighting circuit according to any one of claims 1 to 4, and a lamp activated by a regular lighting device or an emergency lighting device of the disaster lighting lighting circuit.
Therefore, according to the present invention, since the lighting circuit for disaster prevention according to any one of claims 1 to 4 is provided, a single-cut off switch having a bypass circuit with a wiring structure using a two-wire power supply line is provided. By simply adding a simple improvement such as the use of a battery, the lamp can be turned off when it is not necessary, and the emergency lighting device for disaster prevention can be prepared for an emergency by maintaining the charge of the storage battery. In the present invention, the lamp is a discharge lamp or the like, which is used for emergency or guidance.

According to a sixth aspect of the present invention, there is provided a lighting device for disaster prevention according to any one of the first to fourth aspects, wherein the lighting lighting circuit for disaster prevention and the one-side cutoff switch and the bypass circuit are externally wired by a two-wire power supply line. And a device main body including a lamp and a component of the lighting circuit for disaster prevention except for the one-side cutoff switch and the bypass circuit.
Therefore, in the present invention, the lamp can be turned off when it is unnecessary, and the storage battery can be turned off when it is unnecessary by simply making a wiring structure using a two-wire power supply line and using a simple cut-off switch having a bypass circuit. It becomes a lighting device for disaster prevention which can maintain emergency charging and prepare for an emergency. Therefore,
The two-wire power supply line system can be widely applied for general household use in which the mainstream is used.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a lighting device for disaster prevention according to the present invention will be described with reference to FIG. FIG. 1 is a circuit diagram of a lighting device for disaster prevention. First, AC100 / 200
V AC commercial power supply 1 is a 2-wire power supply line 2a, 2b
Further, a discharge lamp 4 which is a lamp is connected via a regular lighting device 3. The regular lighting device 3 includes a ballast 5 using, for example, a current-limiting inductor. In addition, a charging circuit 6 and a storage battery 7 are connected to the two-wire power supply lines 2a and 2b connected to the commercial AC power supply 1 in a different system from the regular lighting device 3 side. Charging circuit 6 charges the transformer 8, the full-wave rectifier circuit 9, the transistor Q ₁ · resistor R ₁ · Zener diode constant voltage circuit consisting of ZD 10, a smoothing capacitor C _1, resistors R _2, by connecting a diode D ₁ in order Is formed. An emergency lighting device 11 for lighting and driving the discharge lamp 4 using the storage battery 7 as a power supply is connected to the storage battery 7. The emergency lighting device 11 includes a well-known inverter circuit 12 that converts a DC voltage into a high-frequency AC voltage to light the discharge lamp 4, and includes an inductor L and a pair of switching transistors Q.
₂ , Q ₃ , the inverter transformer 13 and the like. Therefore, the discharge lamp 4 is connected between both ends of the secondary side of the inverter transformer 13.

Here, the regular lighting device 3 and the emergency lighting device 11 are parallel and alternative to the discharge lamp 4, and more specifically, whether or not the commercial AC power supply 1 is in a power failure state. Specifically, lighting device switching means 14 for switching which lighting device 3 or 11 is enabled depending on whether or not a current flows even on the two-wire type power supply lines 2a and 2b even if the current is very small. Is provided. The lighting device switching means 14 includes a relay coil 15 connected between the commercial AC power supply 1 on the primary side of the charging transformer 8 and a discharge lamp 4 between an output terminal of the regular lighting device 3 and an output terminal of the emergency lighting device 11. Relay contact 16 for switching the connection to
a, 16b, 16c, storage battery 7 and emergency lighting device 11
And a relay contact 16d interposed therebetween. These relay contacts 16a to 16d are normally closed type and are set to an initial state in which the emergency lighting device 11 is selected, and the state of the relay contacts 16a to 16d is switched by applying a small current or more to the relay coil 15. It is set as follows. The relay coil 15 is, for example, 50 mW
High-sensitivity commercial products that are sensitive to electric power caused by such a small current are used.

Further, the storage battery 7 is
The LED 17 is connected as a charge indicator lamp for externally displaying the charging operation for the. The LED 17, the transistor Q ₄ of the base resistor R ₃ is connected between both ends of the resistor R _2, a resistor R ₄ is connected in series.

Reference numeral 18 denotes a circuit board on which the charging circuit 6, the emergency lighting device 11, and the lighting device switching means 14 are mounted. The storage battery 7 and the LED 17 are externally attachable.

Further, on one of the two-wire power supply lines 2a and 2b, for example, on the two-wire power supply line 2a, a one-side light-off switch 19 having a wall switch configuration is interposed. This one-side cut-off switch 19 has a resistor R ₅ and a power indicator lamp 2.
Zero bypass circuits 21 are connected in parallel.
Therefore, the switch portion itself is configured as a well-known wall switch with an energizing indicator light as a switch for general illumination, and a predetermined minute current (for example, about several mA) is supplied to the bypass circuit 21 when the single-cut off switch 19 is turned off. ) To turn on the energization indicator lamp 20.

Thus, the lighting circuit 22 for disaster prevention is
And a disaster prevention lighting device 23 including the discharge lamp 4 energized by the circuit 22.

The operation of the above embodiment will be described. First, in a normal state where the commercial AC power supply 1 is not interrupted, if the one-side extinguishing switch 19 is turned on, a sufficiently large voltage is applied to the relay coil 15 and the relay contacts 16b and 16c are moved to the regular lighting device 3 side. Since the switching is performed and the relay contacts 16a and 16d are opened, the emergency lighting device 11 does not operate and the discharge lamp 4 is driven to be driven by the regular lighting device 3 (common lighting). In parallel with this,
Since the charging circuit 6 operates, the storage battery 7 is charged and prepared for an emergency. In this charging operation, the charging current flows through the resistor R _2, since the transistor Q ₄ is turned on a potential difference across the resistor R _2, LED 17 is lit by the current flowing through the resistor R _4. As a result, a display indicating that the battery is being charged is provided outside.

When a power failure occurs due to an accident such as a fire or other factors, no voltage is applied to the relay coil 15, so that the relay contacts 16a to 16d return to the initial state (the relay contacts 16b and 16c become emergency). Lighting device 1
1 is switched to the selected state, and the relay contacts 16a, 1
6d returns to the closed state). Thereby, the emergency lighting device 11 drives the discharge lamp 4 to light up using the storage battery 7 as a power source, and an emergency or guidance display is secured.

On the other hand, even in a normal state, when it is not necessary to turn on the discharge lamp 4, the one-side cutoff switch 19 is turned off. At this time, one of the two-line power supply lines 2a and 2b does not become open, and the one-side cut-off switch 1
A predetermined small current flows through a bypass circuit 21 parallel to the switch 9 and the energization indicator lamp 20 is turned on to indicate the OFF state of the switch. In a state where such a small current flows on the two-wire power supply lines 2a and 2b, the ballast 5 enters a power supply state in which the lighting of the discharge lamp 4 cannot be maintained as in the case of a power failure, and The lighting function is not exhibited. On the other hand, a high-sensitivity coil is used as the relay coil 15. Even if the current flowing on the two-wire power supply lines 2a and 2b is a very small current, the relay coil 15 is sensitive and the relay contacts 16b and 16c are normally used. The state is switched to the state where the lighting device 3 is enabled, and the relay contacts 16a and 16d are opened, so that the emergency lighting device 11 does not operate. However, even if the regular lighting device 3 becomes effective, the lighting cannot be maintained with a small current, so that the discharge lamp 4 is turned off. At the same time, the charging circuit 6 operates, so that the storage battery 7 is charged, and is ready in case of emergency in the off state. In this charging operation, the charging current flows through the resistor R _2, since the transistor Q ₄ is turned on a potential difference across the resistor R _2, LED 17 is lit by the current flowing through the resistor R _4. As a result, a display indicating that the battery is being charged is provided outside.

Therefore, according to the present embodiment, a high-sensitivity relay coil is used for the relay coil 15 and only the single-cut off switch 19 with the energizing indicator lamp 20 is provided.
The present invention can be easily applied to the line type power supply lines 2a and 2b without any trouble, and when unnecessary, the discharge lamp 4 can be turned off and the storage battery 7 can be kept charged.

An embodiment of the lighting device for disaster prevention according to the present invention will be described with reference to FIG. FIG. 2 is a schematic perspective view of the disaster prevention lighting device. This embodiment shows an example of application to a general household emergency light illuminating device, shows an example of an embedded type in which a fixture main body 26 including a reflector 25 and the like is embedded in a ceiling surface 24, and is substantially U-shaped. The discharge lamp 4 is mounted in the instrument main body 26 so as to be located at the center of the reflection plate 25.
Most of the lighting and lighting circuit 22 for disaster prevention having the configuration shown in FIG. 1 for the lamp 5 is mounted on the ceiling surface 24 so as to be built into the fixture main body 26. In the figure,
27 is a hole for making the LED 17 visible. On the wall surface 28, a one-sided light-off switch 19 is mounted as a wall switch structure. The two-wire power supply lines 2a and 2b are connected to the disaster lighting and lighting circuit 22 by being externally wired by wiring in the wall surface and in the ceiling surface. Have been.

[0025]

According to the first and second aspects of the present invention, a two-wire power-off switch in which a bypass circuit interposed on a two-wire power supply line and passing a predetermined minute current when turned off is connected in parallel, When the current flowing on the power supply line is more than a predetermined minute current or when there is no power failure, the normal lighting device is enabled, and when the current flowing on the two-wire power supply line is smaller than the predetermined minute current or when there is a power failure, emergency lighting is performed. Since high-sensitivity lighting device switching means for switching the lighting device so as to make the device side effective is provided, even if a configuration using an existing two-wire type power supply line is added only by simple improvement, it is unnecessary. In some cases, the lamp can be turned off and the charge of the storage battery can be maintained, so that a disaster prevention lighting lighting circuit that can be prepared for an emergency can be provided. In particular, according to the third aspect of the present invention, by using a commercially available wall switch with a power indicator lamp,
According to the invention of claim 4, this can be easily realized by using a commercially available high-sensitivity relay sensitive to a minute current.

According to a fifth aspect of the present invention, since the lighting device for lighting a disaster prevention device according to any one of the first to fourth aspects is provided, a wiring structure using a two-wire power supply line is provided, and a bypass circuit is provided. It is possible to provide a disaster prevention lighting device that can turn off the lamp when it is not needed, maintain the charge of the storage battery, and be prepared for an emergency by simply adding a simple improvement such as using a one-off switch.

According to the sixth aspect of the present invention, the disaster lighting lighting circuit according to any one of the first to fourth aspects, the one-side cut-off switch and the bypass circuit are externally wired by a two-wire power supply line. Since it has the components of the lighting lighting circuit for disaster prevention except the cut-off switch and the bypass circuit, and the fixture body incorporating the lamp, the wiring structure using the two-wire power line is used, and the one-side cut-off light having the bypass circuit is provided. By simply adding a simple improvement such as using a switch, it is possible to provide a disaster prevention lighting device that can turn off the lamp when it is not needed, maintain the charge of the storage battery, and prepare for an emergency, by simply using a switch. It can be widely applied as a general household disaster prevention lighting system in which the line system is the mainstream.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing one embodiment of a lighting device for disaster prevention according to the present invention.

FIG. 2 is a schematic perspective view showing one embodiment of the disaster prevention lighting device of the present invention.

[Explanation of symbols]

 1: Commercial AC power supply 2a, 2b: 2-wire type power line 3: Regular lighting device 4: Lamp 7: Storage battery 11: Emergency lighting device 14: Lighting device switching means 15: High-sensitivity relay 19: Single-cut off switch 20 ： Electrification indicator lamp 21 ： Bypass circuit 22 ： Disaster prevention lighting lighting circuit 23 ： Disaster prevention lighting lighting device 26 ： Equipment main body

Claims (6)

[Claims] A two-wire power supply line connected to a commercial AC power supply; and a single-cut off switch interposed on the two-wire power supply line and connected in parallel with a bypass circuit for passing a predetermined minute current when turned off. A regular lighting device that drives the lamp based on the commercial AC power supply and cannot maintain the lighting with a current smaller than a predetermined minute current; a storage battery charged based on the commercial AC power supply; and drives the lamp using the storage battery as a power supply. An emergency lighting device; when the current flowing through the two-wire power line is equal to or greater than a predetermined minute current, the service lighting device is enabled; and when the current flowing through the two-wire power line is smaller than the predetermined minute current, the emergency lighting device is used. A high-sensitivity lighting device switching means for switching the lighting device so as to make the lighting device effective. 2. A two-wire power supply line connected to a commercial AC power supply; a one-side cut-off switch interposed on the two-wire power supply line and connected in parallel with a bypass circuit for passing a small current when turned off; A regular lighting device that drives a lamp based on an AC power supply and cannot maintain lighting with a current smaller than a small current flowing through a bypass circuit; a storage battery charged based on a commercial AC power supply; and drives a lamp using the storage battery as a power supply An emergency lighting device; and lighting device switching means for switching the lighting device so that the normal lighting device is enabled when the commercial AC power is not interrupted and the emergency lighting device is enabled when the commercial AC power is interrupted. Lighting lighting circuit for disaster prevention. 3. The disaster lighting lighting circuit according to claim 1, wherein the one-off switch connected to the bypass circuit in parallel is a wall switch with a power indicator connected in parallel. . 4. The illumination lighting circuit for disaster prevention according to claim 1, wherein the lighting device switching means has a high-sensitivity relay responsive to a minute current. 5. A disaster prevention lighting lighting circuit according to any one of claims 1 to 4, and a lamp activated by a regular lighting device or an emergency lighting device of the disaster prevention lighting lighting circuit. An illumination lighting device for disaster prevention, characterized in that: 6. A lighting and lighting circuit for disaster prevention according to any one of claims 1 to 4, and a one-side off switch and a bypass circuit are externally wired by a two-wire power supply line, and the one-side off switch and the bypass circuit are provided. Excluding the components of the lighting circuit for lighting for disaster prevention and the fixture body incorporating the lamp;
A lighting device for disaster prevention, comprising: