JP2000188005A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system capable of reducing the number of parts and enhancing a reliability. SOLUTION: This lighting system is provided with a lamp 11; a turn-on circuit parts 12 for turning on the lamp 11; a storage battery 14 connected to the turn-on circuit part 12 and charged by a commercial power source 13; and a state indication light source 15 for keeping a first turn-on state if a charging state of the storage battery 14 is good and for making a second turn-on state if the charging state is bad. In the case where a feeding from the commercial power source 13 is cut off in an emergency, the turn-on circuit part 12 turns on the lamp 11 by a feeding from the storage battery 14. The state indication light source becomes a third turn-on state if the lamp 11 becomes a state of expiring a lamp life.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency lighting device for illuminating a passage even in an emergency such as an earthquake and when power supply from a commercial power supply is cut off, and an evacuation route in such a case. The present invention relates to a lighting device provided with a storage battery, such as a guide light indicating the above.

[0002]

2. Description of the Related Art A conventional lighting device will be described with reference to FIGS. FIG. 5 is a block diagram of the lighting device. FIG. 6 is a perspective view of a conventional guide light.

Conventionally, a lighting device such as an emergency lighting device includes a lamp 1, a lighting circuit 2 for lighting the lamp 1, and a storage battery 4 charged by a commercial power supply 3. Emergency lighting equipment is installed along an evacuation route of a building, or installed in a place where it is difficult to suddenly go into darkness even if power from a commercial power supply is cut off due to an earthquake or the like.

In this device, the lighting circuit unit 2 normally turns off the lamp 1, and in an emergency when the power supply from the commercial power supply 3 is cut off due to an earthquake or a fire, the lighting circuit unit 2 is turned off. Turns on the lamp 1 upon receiving power supply from the storage battery 4.

If the state of charge of the storage battery 4 is insufficient, the lamp 1 may not be kept lit for a desired time in an emergency, so a light source 5 for indicating the state of charge is provided to indicate the state of charge. ing. The charge state display light source 5 is turned on when the charge state of the storage battery 4 is good, and is turned off when the charge state is bad.

Further, if the lamp is attached to the emergency lighting equipment even though the lamp 1 has the life of the lamp, the lamp may not be properly turned on in an emergency. Is also provided. The lamp status display light source 6 is turned on when the lamp reaches the lamp life.

In the emergency lighting apparatus described above, the maintenance inspector visually checks the lighting state of the charging state display light source 5 and the lamp state display light source 6 without performing any special inspection. The state of the storage battery and the state of the lamp can be confirmed.

Further, as shown in FIG. 6, an induction lamp 7 in which the lamp 1 is a cold-cathode discharge lamp and is normally lit also has a light source 5 for displaying a charged state and a light source 6 for displaying a lamp state. The state of the storage battery and the state of the lamp can be confirmed.

[0009]

However, in the above-described lighting device, two light sources, that is, a light source 5 for displaying a charged state and a light source 6 for displaying a lamp state are used for displaying a state. As an emergency lighting device, a high degree of reliability is required. Therefore, it is desired to further improve the reliability by reducing the number of parts.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a lighting device capable of reducing the number of parts and improving reliability. is there.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a lamp, a lighting circuit for lighting the lamp, a storage battery connected to the lighting circuit and charged by a commercial power supply. If the state of charge of the storage battery is good, the first lighting state is continued, and if the state of charge is poor, the state lighting light source is set to the second lighting state. When the power supply is cut off, the lighting circuit unit turns on the lamp by the power supply from the storage battery.In the lighting device, the status display light source is a third when the lamp is in the lamp life state. It is characterized by being turned on. The status display light source is, for example, a monochromatic light emitting diode, and each of lighting, extinguishing, and blinking in the first cycle indicates one of first to third lighting states.

Further, it is more preferable that the status display light source be in a fourth lighting state when the charge state of the storage battery is poor and the lamp has reached a lamp life state. In this case, the status display light source is, for example, a monochromatic light emitting diode, and is turned on, turned off, blinking in the first cycle,
Each of the blinks in the second cycle and the second cycle may indicate one of the first to fourth lighting states.

In another embodiment, the status display light source may be a two-color light emitting diode of a first color and a second color. Lighting, lighting of the second color, alternating lighting of the first and second colors,
It is sufficient that each of the off state and the off state indicates any of the first to fourth lighting states.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a lighting device according to the present invention will be described with reference to FIGS. 1 and 2, and a second embodiment will be described with reference to FIGS.

[First Embodiment] FIG. 1 is a block diagram of a lighting device of the present invention, and FIG. 2 is a time chart showing a lighting state of a state display light source of the lighting device of the present invention.

Referring to FIG. 1, an emergency lighting device as a lighting device includes a lamp 11, a lighting circuit unit 12, a storage battery 14, and a state display light source 15. Lamp 11
Is an incandescent lamp. The lighting circuit 12 turns off the lamp 11 during normal times, and turns on the lamp 11 by power supply from the storage battery 14 in an emergency such as an earthquake or fire.

The storage battery 14 is, for example, a Ni-Cd storage battery, which is charged by power supply from the commercial power supply 13 in a normal state, and supplies power to the lighting circuit section 12 in an emergency.

The state display light source 15 continues the first lighting state when the charge state of the storage battery 14 is good, and enters the second light state when the charge state is poor, and the lamp 11 is in a state of lamp life. When the state becomes, the third lighting state is set, and when the charging state of the storage battery 14 is poor and the lamp 11 reaches the lamp life state, the fourth lighting state is set. The state display light source 15 is a green monochromatic light emitting diode, which is turned on in the first lighting state, turned off in the second lighting state, and 1 Hz in the third lighting state.
Blinking at a frequency of 2 Hz in the fourth lighting state.

Therefore, as shown in FIG. 2, when the lamp 11 reaches the end of its life, the status display light source 15 blinks at a frequency of 1 Hz (time T1 to T2), and when the storage battery 14 becomes poorly charged, the status display light source 15 becomes illuminated. 15 goes out (from time T3)
T4). Further, if the lamp 11 reaches the end of its lamp life in addition to the charging failure, the status display light source 15 blinks at a frequency of 2 Hz (time T4 to T5). And lamp 1
If both the battery 1 and the storage battery 14 are normal, the status display light source 15 is turned on (time T2 to T3, time T5).

In the emergency lighting apparatus described above, the state of the lamp 11 and the state of the storage battery 14 can be displayed by one state display light source 15, so that the number of parts can be reduced. The reliability of the device can be further improved.

In the first embodiment, the status display light source 15 is described as a green monochromatic light-emitting diode. Good. The state display light source 15 is
It is described that the lamp is turned on in the first lighting state, turned off in the second lighting state, blinks at a frequency of 1 Hz in the third lighting state, and blinks at a frequency of 2 Hz in the fourth lighting state. However, the present invention is not limited to this combination. For example, it may blink at a frequency of 1 Hz in the second lighting state, blink at a frequency of 2 Hz in the third lighting state, and turn off in the fourth lighting state. [Second Embodiment] FIG. 3 is a block diagram of a lighting device according to the present invention. FIG. 4 is a perspective view showing the appearance of the guide light. In FIG. 3, the same reference numerals are given to the same parts as those of the lighting device described in the above-described first embodiment, and the detailed description of the same parts will be omitted.

The lighting apparatus of the present embodiment shown in FIG. 3 is different from the lighting apparatus described in the first embodiment in the following features.

That is, the state display light source 16 is a two-color light emitting diode of green, which is the first color, and red, which is the second color. It turns off in the lighting state, turns on green and red alternately in the third lighting state, and turns on red light in the fourth lighting state. Therefore, when the lamp 11 reaches the end of its life, the status display light source 16 alternately lights green and red, and when the storage battery 14 becomes poorly charged, the status display light source 16 is turned off. Further, assuming that the lamp 11 has reached the lamp life in addition to the charging failure,
The status display light source 16 is lit red. And lamp 1
If both the battery 1 and the storage battery 14 are normal, the status display light source 15 is lit in green.

In the emergency lighting apparatus described above, the state of the lamp 11 and the state of the storage battery 14 can be displayed by one state display light source 16, so that the number of parts can be reduced. The reliability of the device can be further improved.

In the first and second embodiments, the lighting device is described as an emergency lighting device. However, the present invention is not limited to this.
The guide light 17 shown in FIG. In the case of the induction lamp 17, the lamp 11 is a cold-cathode discharge lamp, which is normally lit by the power supply from the commercial power supply 13, and in an emergency, when the power supply from the commercial power supply is cut off. Is turned on by power supply from the storage battery 14. Even in the case of a guide light, if it has a storage battery and a lamp, the state of both can be displayed by a single state display light source, and the reliability is improved by reducing the number of parts. Can be.

[0026]

Since the lighting device of the present invention is constructed as described above, according to the first aspect of the present invention, both the state of the lamp and the state of the storage battery are controlled by one state display light source. Thus, there is an effect that it is possible to provide a lighting device capable of improving reliability through reduction in the number of components.

According to the second aspect of the present invention, it is possible to display an indication when the state of charge of the storage battery is poor and the lamp has reached the end of its lamp life. Thus, even if a problem occurs, the state can be confirmed, and an effect that a lighting device that can perform maintenance and inspection more reliably can be provided.

According to the third and fourth aspects of the present invention, since a monochromatic light emitting diode is used as a state display light source, an advantageous effect can be obtained in that an illuminating device which can be configured at low cost can be provided.

According to the fifth aspect of the present invention, since a two-color light emitting diode is used as the state display light source, it is possible to provide an illuminating device capable of performing display with higher visibility.

[Brief description of the drawings]

FIG. 1 is a block diagram of a lighting device according to the present invention.

FIG. 2 is a time chart showing a lighting state of a state display light source of the lighting device of the present invention.

FIG. 3 is a block diagram of the lighting device of the present invention.

FIG. 4 is a perspective view showing an external appearance of the guide light.

FIG. 5 is a block diagram of a conventional lighting device.

FIG. 6 is a perspective view of a conventional guide light.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Lamp 12 Lighting circuit part 13 Commercial power supply 14 Storage battery 15 Light source for status display

Claims (5)

[Claims] 1. A lamp, a lighting circuit for lighting the lamp, a storage battery connected to the lighting circuit and charged by a commercial power supply, and a first lighting state if the storage battery has a good charge state. If the state of charge is continued and the charging state is poor, a state display light source that sets the second lighting state is provided, and in a case of emergency, when the power supply from the commercial power supply is cut off, the lighting circuit unit outputs from the storage battery. The lighting device for lighting a lamp by the power supply of (1), wherein the state display light source is in a third lighting state when the lamp has reached the lamp life state. 2. The state display light source is turned on in a fourth state when the state of charge of the storage battery is poor and the lamp reaches the end of its life. Item 2. The lighting device according to Item 1. 3. The status display light source is a monochromatic light emitting diode, and each of lighting, turning off, and blinking in a first cycle indicates one of first to third lighting states. The lighting device according to claim 1. 4. The state display light source is a single-color light emitting diode, and each of lighting, extinguishing, blinking in a first cycle, and blinking in a second cycle correspond to first to fourth lighting states. 3. The lighting device according to claim 2, wherein the lighting device indicates one of them. 5. The status display light source is a two-color light emitting diode of a first color and a second color, wherein the first color is turned on, the second color is turned on, and the first color is turned on. Alternate lighting of the second color,
3. The lighting device according to claim 2, wherein each of the off state and the off state indicates one of first to fourth lighting states.