JPH11149988A - Emergency lighting unit and disaster-prevention luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend service life of a secondary battery by detecting power interruption of an AC power source, connecting a secondary battery to an emergency lighting circuit, and discharging a secondary battery for a given period of time in response to an output generated at timer means during arrival of a set time. SOLUTION: A timer element 6a starts clocking operation at the same time as when an AC power source 1 is turned ON, when a preset given time has elapsed a timer output is generated, and a contact 6a1 is closed. Therefore, a relay 6b is biased, and a constantly closed 6b1 opens, and a constantly open contact 6b2 is closed. The constantly closed contact 6b1 is inserted into a charge circuit 4 in series, and an electric circuit 4 stops charging with a secondary battery 5. The constantly opened contact 6b2 is inserted into a discharge circuit 7 in series, the discharge circuit 7 is connected between both ends of the secondary battery 5, the secondary battery 5 starts discharging, after an elapse of a given period of time, a timer output of the tamer element 6a is eliminated, and the contact 6a1 is re-opened. The relay 6b is de-biased, the constantly closed contact 6b1 is closed, and the constantly opened contact 6b2 opens. Therefore, the secondary battery 5 restarts charging.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency lighting unit used for emergency lighting equipment such as a guide light and an emergency lighting equipment, and a disaster lighting equipment using the same.

[0002]

FIG. 8 is a circuit diagram showing a conventional emergency lighting unit.

In the figure, 101 is an AC power supply, 102 is an inspection switch, 103 is a power failure detection relay, 104 is a step-down transformer, 105 is a full-wave rectifier, 106 is a secondary battery,
Reference numeral 07 denotes an emergency lighting circuit mainly including an inverter;
Is a fluorescent lamp, and 109 is a regular lighting circuit.

An AC power supply 101 is connected to both ends of a parallel circuit of a primary winding 104 _P of a step-down transformer 104 and a power failure detection relay 103 via a check switch 102.

[0005] Secondary winding 104 of step-down transformer 104
_S is connected to the AC input terminal of the full-wave rectifier 105.

The DC output terminal of the full-wave rectifier 105 is connected to both ends of the secondary battery 106.

Both ends of the secondary battery 106 are connected to the emergency lighting circuit 10 via the normally closed contact 103a of the power failure detection relay 103.
7 is connected to the input terminal.

The output terminal of the emergency lighting circuit 107 is connected to both ends of the fluorescent lamp 108 via the switching contact 103b of the power failure detection relay 103.

The regular lighting circuit 109 includes the power failure detection relay 1
03 is connected to the fluorescent lamp 108 via the switching contact 103b. One of the emergency lighting circuit 107 and the regular lighting circuit 109 is a fluorescent lamp 10.
8 is connected to the fluorescent lamp 108 by the switching contact 103b so that the other is open.
Are related to be connected to.

In the configuration described above, the AC power supply 10
1. The parts other than the fluorescent lamp 108 and the regular lighting circuit 109 constitute an emergency lighting unit.

When the AC power supply 101 is normal, the power failure detection relay 103 is energized by the AC power supply 101, so that the normally closed contact 103a is opened and the switching contact 103 is opened.
b has been switched to the regular lighting circuit 109 side. For this reason, the fluorescent lamp 108 is directly energized and lit by the AC power supply 101 via the common lighting circuit 109.

On the other hand, the secondary battery 106
Is normal, the battery is continuously charged by the DC output of the full-wave rectifier 105 via the check switch 102 at all times.

When the inspection switch 102 is operated to open the circuit temporarily, the power failure detection relay 103 is deenergized, so that the normally closed contact 103a is closed and the switching contact 103b opens the normal lighting circuit 109. , The emergency lighting circuit 107 is connected to the fluorescent lamp 108. With this switching operation, if the secondary battery 105 is normal, the emergency lighting circuit 107 starts to operate using the output of the secondary battery 105 as a power supply and outputs a high-frequency voltage. High frequency lighting. In this way,
It is possible to check whether the emergency lighting unit can operate normally.

Incidentally, the secondary battery 105 is generally charged by a trickle charging method. This trickle charging method is at a level of preventing self-discharge, 1 /
The battery is charged with a charging current of 20 to 1 / 30C, and does not require an additional function such as an overcharge protection device.

[0015]

The proportion of the secondary battery in the price structure of the emergency lighting unit is large.

[0016] However, the secondary battery has a limited life, and must be replaced promptly when the life expires.

Therefore, it is desirable that the life is extended as much as possible.

According to the study of the present inventor, it has been found that the life is extended when the secondary battery is forcibly discharged or self-discharged after a certain period of time, rather than continuously performing trickle charging. .

Periodic inspections are required for disaster prevention lighting fixtures. However, except for places where disaster prevention management centers are installed in large-scale facilities and inspections are periodically performed once every three months, actual inspections are performed. Currently, it cannot be expected that periodic inspections will be performed.

By forcibly discharging at the time of periodic inspection,
Although the service life is extended, the effect of the periodic inspection is not generally obtained because the service is not actually performed as described above.

[0021] It is an object of the present invention to provide an emergency lighting unit that automatically extends the life of a secondary battery even if the installer is unaware of it, and a disaster prevention lighting fixture using the same. .

[0022]

According to a first aspect of the present invention, there is provided an emergency lighting unit comprising: a charging circuit connected to an AC power supply; a secondary battery connected to the charging circuit and charged; An emergency lighting circuit for lighting the emergency lamp; a power failure detecting means for detecting a power failure of the AC power supply and connecting a secondary battery to the emergency lighting circuit when the power failure is detected; A timer means for generating an output; and a discharge circuit for discharging the secondary battery for a predetermined time in response to the output generated when the timer means measures the elapse of a predetermined period.

In the present invention and each of the following inventions, definitions and technical meanings of terms are as follows unless otherwise specified.

The emergency lighting unit may be used for any purpose as long as it functions to automatically turn on the emergency lamp when an AC power supply fails. Guidance lights and emergency lighting fixtures are the most typical uses of the present invention, but the present invention is not limited to these uses.

The charging circuit is not limited to a specific circuit configuration. It is effective to use a trickle charging type charging circuit, but other circuit types can also be employed.

The secondary battery may be any battery as long as it can be charged by the charging circuit. For example, nickel-cadmium batteries, nickel-metal hydride batteries,
A lithium ion battery or the like can be used.

When the emergency lamp is a fluorescent lamp, the emergency lighting circuit converts the DC voltage of the secondary battery into a high-frequency voltage, so that the luminous efficiency of the fluorescent lamp can be made higher than that at the commercial frequency. Although it is convenient, a format for converting to a commercial frequency if necessary or a format for converting to a direct current having a desired voltage and lighting the direct current may be used.

In the case of an incandescent lamp in which the emergency lamp is lit at a low voltage, such as an emergency incandescent lamp or a built-in type emergency lighting device, the output voltage of the secondary battery is directly used without conversion. The circuit configuration may be such that it is applied to an emergency lamp.

Further, the emergency lighting circuit may be configured separately from the regular lighting circuit, or may be shared with the regular lighting circuit. In the latter case, the power failure detection means switches the power supply for the lighting circuit. That is, the secondary battery is connected to the DC input terminal of the lighting circuit when operating as an emergency lighting circuit, and a DC power supply obtained by rectifying an AC power supply is connected when operating as a regular lighting circuit.

When the regular lighting circuit is formed separately from the emergency lighting circuit, a ballast composed of an inexpensive coil and iron core can be used.

It is simplest to use a relay as the power failure detection means. However, if the power failure can be detected and the connection can be switched so that the emergency lamp is turned on by the secondary battery when the power failure is detected, Any configuration may be used.

As long as the emergency lamp is turned on at the time of a power failure, the type of lamp, the amount of light at the time of lighting, the light color, and the like are not limited. Therefore, a lamp such as a fluorescent lamp or an incandescent lamp can be used.

The emergency lamp may be turned on only in an emergency, or may be a common / emergency lamp which is turned on also in a normal state and continuously turned on in an emergency.

The timer means measures the elapse of a predetermined period and generates an output at the arrival of a set time. If the discharge circuit can respond to the output to discharge the secondary battery for a predetermined time, the timer means has any configuration. There may be. For example, using a microcomputer, a small and highly accurate timer means can be easily configured.

Further, the timer means can be shared with other purposes. For example, the timer means for measuring the lamp replacement time can also be used as the timer means in the present invention.

It is preferable to stop charging while the secondary battery is being discharged.

Thus, in the present invention, when a predetermined period elapses due to counting by the timer, the timer generates an output for the predetermined time. The discharge circuit is connected to the secondary battery in response to the output generated from the timer means, so that the secondary battery discharges at a preset discharge rate. During that time, the charging circuit stops charging the secondary battery.

When the predetermined time has expired, the output of the timer means stops, so that the discharging circuit is opened again and
The 2:00 battery starts charging by the charging circuit.

The above circuit operation is performed automatically.

The discharge rate and time during the forced discharge by the discharge circuit can be set appropriately, but the emergency lamp can be illuminated with the legal time and illuminance even when a power failure is detected immediately after the discharge. It is preferable to set a value that leaves a margin.

The emergency lighting unit according to the second aspect of the present invention comprises:
The emergency lighting unit according to claim 1, wherein the discharge circuit discharges the secondary battery at a discharge rate of 0.1 to 0.3C.

When discharging at the above-mentioned discharge rate, a preferable discharge time is about 4 to 10 minutes, and optimally 6 minutes.

The present invention specifies a preferable discharge rate in the emergency lighting unit. With the discharge rate in this range, the emergency lighting performance is satisfied even when the emergency mode is set after the discharge is completed.

The emergency lighting unit according to the third aspect of the present invention comprises:
A charging circuit connected to the AC power supply; a secondary battery connected to and charged by the charging circuit; an emergency lighting circuit for lighting an emergency lamp using the secondary battery as a power supply; A power failure detection means for connecting a secondary battery to an emergency lighting circuit when a power failure is detected; timer means for measuring the elapse of time and generating an output when a set time comes; when the timer means measures the elapse of a predetermined period Opening means for opening the secondary battery for a predetermined time in response to the output generated at the time;
It is characterized by having.

According to the present invention, the timer means measures the elapse of a predetermined period and responds to an output generated when a set time comes.
The secondary battery is opened to allow self-discharge of the secondary battery. Periodically self-discharging the secondary battery can extend its life. In the case of self-discharge, the predetermined time is set longer than forcibly discharging. However, the self-discharge has a longer life extension effect than the forced discharge.

The emergency lighting unit according to the fourth aspect of the present invention comprises:
The emergency lighting unit according to any one of claims 1 to 3, wherein the predetermined period is eight months or less.

The present invention specifies a predetermined period suitable for forcibly or self-discharging the secondary battery. If the predetermined period exceeds 8 months, it is difficult to obtain the effect of extending the life.
About 6 months ± 1 month is appropriate in the above range.

The emergency lighting unit according to the fifth aspect of the present invention comprises:
The emergency lighting unit according to any one of claims 1 to 4, wherein the emergency lamp is configured to detect that the service lamp is turned off, and to operate the secondary battery by the timer only when the light is detected to be turned off. It is characterized by having detecting means.

"Control of the secondary battery" means that the secondary battery includes both forced discharge by a discharge circuit and self-discharge by opening the secondary battery.

The turn-off detecting means for the service lamp may have any structure. For example, by detecting the lamp current, light emission or operating temperature of the common lamp, it is possible to detect the extinguishing.

In the case of an emergency fluorescent lamp / combined type, emergency incandescent lamp / built-in type emergency lighting equipment, one line of single-phase two-wire wiring is branched into three-wire wiring, and a flashing switch is provided. Thereby, the service lamp can be flickered. Therefore, such a lighting fixture can be used as at least a part of a lighting fixture for general lighting in a room.

Thus, in the above case, even if a predetermined period of time has come during use of the room in the above case, only when the regular lamp is turned off, that is, only after the person has left the room,
The secondary battery can be discharged.

Thus, the degree of discharge of the secondary battery in response to the timer means is large, and when the emergency mode happens to occur immediately after the discharge, the secondary battery is excessively discharged and can be turned on for a predetermined time and with a predetermined illuminance. If not, the degree of danger is greatly reduced if no one is in the room. Irrespective of the discharge of the secondary battery, normal illumination can be prevented from being affected.

A disaster prevention lighting apparatus according to a sixth aspect of the present invention is provided with the disaster prevention lighting apparatus main body and the disaster prevention lighting apparatus main body.
And an emergency lighting unit according to any one of (5) to (5).

In the present invention, “disaster prevention lighting equipment”
It is a concept including a guide light and an emergency lighting device.

"Guidance light" refers to a lighting fixture that clearly indicates the position and direction of a fire escape to people in a building.

"Emergency lighting equipment" refers to lighting equipment provided to facilitate the rescue of human lives and fire extinguishing activities in the event of a power outage due to a disaster such as an earthquake or fire, or self. , Stairs, etc. are illuminated with a specified brightness. Emergency lighting fixtures include emergency fluorescent lamps and combined types, emergency incandescent lamps and built-in types, and emergency incandescent lamps and dedicated types.

The emergency fluorescent lamp / combination type is an emergency lighting device using a fluorescent lamp as a light source, and there are a single lamp and a multiple lamp.

The one-lamp type is an emergency lighting fixture to which one fluorescent lamp is mounted. The fluorescent lamp is a general-purpose / emergency lamp that is used in both normal and emergency situations.

The multi-lamp type is an emergency lighting fixture to which a plurality of fluorescent lamps are mounted, and is a common / emergency lamp in which one of the fluorescent lamps is turned on even in an emergency. Other lamps are common use lamps.

The emergency incandescent lamp / built-in type refers to a lighting fixture in which an emergency lighting unit including an emergency lighting unit and an incandescent lamp to be lighted by the unit are incorporated in a normal lighting fixture.

The emergency incandescent lamp / dedicated type is an emergency lighting device including only an emergency lighting unit and an emergency lamp including an incandescent lamp to be turned on by the unit.

The present invention is provided in any of the above disaster prevention lighting fixtures.

Further, in the present invention, the normal lighting circuit and the emergency lighting circuit can be configured separately for both the guide light and the emergency lighting equipment. Further, if necessary, a single lighting circuit, for example, an inverter-type lighting circuit may be configured to be used for both normal and emergency use.

The “disaster prevention lighting fixture main body” has a configuration in which a disaster prevention lighting fixture is completed by incorporating an emergency lighting unit.

[0066]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing a first embodiment of the emergency lighting unit of the present invention.

In the drawing, 1 is an AC power supply, 2 is a check switch, 3 is a power failure detecting means, 4 is a charging circuit, 5 is a secondary battery, 6 is a timer means, 7 is a discharging circuit, 8 is an emergency lighting circuit, 9 is a common / emergency lamp and 10 is a regular lighting circuit.

The AC power supply 1 is connected to both ends of a parallel circuit of the power failure detection means 2 and the charging circuit 4 via the check switch 2.

The power failure detection means 3 comprises a voltage relay,
When a power failure is detected, the normally closed contact 3a is connected so that the input terminal of the emergency lighting circuit 8 is connected to the secondary battery 5,
The switching contact 3 b is connected so that the output terminal of the emergency lighting circuit 8 is connected to the common / emergency lamp 9 instead of the common lighting circuit 10.

The charging circuit 4 includes a step-down transformer 4a and a full-wave rectifier 4b.

The step-down transformer 4a has a primary winding 4a _P connected to both ends of the AC power supply 1, and a secondary winding 4a _S connected to the AC input terminal of the full-wave rectifier 4b.

The secondary battery 5 is made of a nickel-cadmium battery and is connected between the DC output terminals of the full-wave rectifier 4b.

The timer means 6 comprises a timer element 6a and a relay 6b.

The timer element 6a is connected between the DC output terminals of the full-wave rectifier 4b, and the relay 6b is connected between the DC output terminals of the full-wave rectifier 4b via the contact 6a1 in series.

The normally closed contact 6b1 of the relay 6b is connected to the charging circuit 4
And the secondary battery 5 is connected in series, and the normally open contact 6b2 is connected to the discharge circuit 7.

The discharge circuit 7 is composed of a resistor having an appropriate value and is connected in parallel with the secondary battery 5.

The emergency lighting circuit 8 is based on a high-frequency lighting system mainly including an inverter.

The regular lighting circuit 10 is based on a commercial frequency lighting method using a ballast composed of a coil and an iron core.

The common / emergency lamp 9 is a fluorescent lamp.

In the configuration described above, the parts excluding the AC power supply 1 and the common / emergency lamp 9 constitute an emergency lighting unit.

When the AC power supply 1 is normal, the power failure detection means 3 is energized by the AC power supply 1, so that the normally closed contact 3a is opened and the switching contact 3b is connected to the normal lighting circuit 1.
It has been switched to the 0 side. Therefore, the common / emergency lamp 9 is directly lit by the AC power supply 1 via the common lighting circuit 10.

On the other hand, when the AC power supply 1 is normal, the charging circuit 4 is always connected to the AC power supply 1 via the check switch 2, so that the secondary battery 5 is constantly charged.

When the inspection switch 2 is operated to open the circuit temporarily, the power failure detection means 3 is deenergized, so that the normally closed contact 3a is closed and the switching contact 3b opens the regular lighting circuit 10. Then, the mode is switched to the emergency lighting circuit 8. That is, the service / emergency lamp 9 is connected from the service lighting circuit 10 to the emergency lighting circuit 8. With this switching operation, if the secondary battery 5 is normal, the emergency lighting circuit 8 starts operating using the output of the secondary battery 5 as a power source,
Since a high-frequency voltage is output, the common / emergency lamp 9 is turned on at a high frequency. In this manner, the emergency lighting unit can be inspected.

Next, in the timer means 6, since the timer element 6a starts the time counting operation simultaneously with the turning on of the AC power supply 1, the timer element 6a generates a timer output after a predetermined period of time, for example, a preset six months has elapsed. , The contact 6a1 is closed. As a result, the relay 6b is energized, and the normally open contact 6
b1 is closed, and the normally open contact 6b2 is closed.
Since the normally closed contact 6b1 is inserted in series with the charging circuit 4, the charging circuit 4 stops charging the secondary battery 5. At the same time, since the normally open contact 6b2 is inserted in series with the discharge circuit 7, the discharge circuit 7 is connected between both ends of the secondary battery 5. As a result, the secondary battery 5 starts discharging.

When a predetermined time elapses after the secondary battery 5 starts discharging, the timer output of the timer element 6a stops, and the contact 6a1 is opened again. With this, relay 6
b is deenergized, the normally closed contact 6b1 is closed, and the normally open contact 6b
2 opens. Therefore, charging of the secondary battery 5 is restarted again.

The timer means 6 forcibly discharges the secondary battery 5 for a predetermined time every time a predetermined time comes.

When the power failure detecting means 3 detects a power failure, it operates similarly to the conventional emergency lighting unit.

FIG. 2 is a circuit diagram showing a second embodiment of the emergency lighting unit of the present invention.

In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

The present embodiment is different from the first embodiment in that the secondary battery 5 is opened when a predetermined period has come. That is, the normally closed contact 6b1 of the relay 6b corresponding to the contact 6a1 of the timer element 6a of the timer means 6 is inserted in series with the charging circuit 4 of the secondary battery 5.

Therefore, when a predetermined period of time comes by the timer means 6, the contact 6a1 of the timer element 6a is closed and the relay 6b is energized accordingly. Thereby, the normally closed contact 6b1 is circuited.

When the normally closed contact 6b1 is circuited, the secondary battery 5
Is released from the charging circuit 4, so that self-discharge is allowed.

When the predetermined time has expired, the timer element 6a circuit the contact 6a1 and deactivates the relay 6b, so that the normally closed contact 6b1 is closed and the secondary battery 5 is charged again.

FIG. 3 is a circuit diagram showing a third embodiment of the emergency lighting unit of the present invention.

In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

This embodiment is different from the first embodiment in that the emergency lighting circuit 8 is shared with the regular lighting circuit.

That is, when the emergency lighting circuit 8 mainly composed of an inverter is used also as a regular lighting circuit, a regular DC power supply 11 is provided in addition to the secondary battery 5 as a DC power supply. Therefore, in this embodiment, the emergency lighting unit includes the service DC power supply 11.

The switching contact 3b of the power failure detecting means 2 is connected to the DC input terminal side of the emergency lighting circuit 8. The rechargeable battery 5 is connected to one of the switching contacts 3b, and the commercial DC power supply 11 is connected to the other.

The regular DC power supply 11 includes a step-down transformer 11
a, a full-wave rectifier 11b and a smoothing capacitor 11c.

Primary winding 11a of step-down transformer 11a
_P is connected in parallel with the primary winding 4a _P of the step-down transformer 4a of the charging circuit 4.

The AC input terminal of the full-wave rectifier 11b is connected between both ends of the secondary winding 11b _S of the step-down transformer 11a. The smoothing capacitor 11c is connected between the DC output terminals of the full-wave rectifier 11b to smooth the DC voltage.

Therefore, when the emergency / emergency lamp 9 is normally lit, the normal DC power supply 11 is connected between the DC input terminals of the emergency lighting circuit 8 via the switching contact 3b.

Next, when the power failure detecting means 3 detects the power failure, the switching contact 3b is switched by the power failure detecting means 3, and the secondary battery 5 is connected between the DC input terminals of the emergency lighting circuit 8. You.

FIG. 4 is a circuit diagram showing a fourth embodiment of the emergency lighting unit of the present invention.

In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

This embodiment is different from the first embodiment in that the secondary battery 5 can be discharged only when the common lamp is turned off.

That is, the ordinary lighting circuit 10 and the AC power supply 1
A blinking switch 12 is inserted between the lamps and the lamp is operated so that the regular lamp can be arbitrarily blinked by operating the blinking switch at the time of regular lighting. It is arranged in 10.

The light-off detection means 13 includes a current transformer 13
a, a lighting signal extraction circuit 13b and a control circuit 13c.

The control circuit 13c has a contact 13c1 connected in series with the relay 6b of the timer means 6.

When the lamp 9 is lit as a regular lamp by operating the regular lighting circuit 10, a lamp current flows through the current transformer 13a and the lighting signal extraction circuit 13b
A lighting signal can be obtained from. While the lighting signal is being generated, the control circuit 13c operates to open the contact 13c1. In this state, even if the timer element 6a of the timer means 6 generates an output, the relay 13b cannot operate because the contact 13c1 of the light-off detection means 13 is open.

Therefore, the secondary battery 5 cannot be discharged even if the timer means 6 operates.

When the flashing switch 12 is open, the normal lighting circuit 10 is inactive and no lamp current flows through the current transformer 13a, so that a lighting signal is obtained from the lighting signal extraction circuit 13b. I can't. That is, when the turning off of the service lamp is detected, the control circuit 13c
Does not act, the contact 13c1 is closed. In such a state, the secondary battery 5 can be discharged if the timer means 6 generates an output after a predetermined period has elapsed.

This means that the secondary battery 5 is not discharged until the regular lamp is turned off by the blinking switch 12 even if the timer means 6 measures the elapse of a predetermined period while the regular lamp is lit. Show.

Therefore, the present embodiment is suitable for an emergency fluorescent lamp / combined type, an emergency incandescent lamp / built-in type emergency lighting device.

FIG. 5 is a circuit diagram showing a fifth embodiment of the emergency lighting unit of the present invention.

In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

The present embodiment is different in that the present embodiment is configured as an emergency lighting unit for an emergency incandescent lamp / built-in type emergency lighting device.

That is, 8 'is an emergency lighting circuit, 9' is an emergency lamp, 12 is a blinking switch, and 14 is a regular lamp.

The emergency lighting circuit 8 'is configured to directly apply the DC voltage of the secondary battery 5 directly to the emergency lamp 9'.

The emergency lamp 9 'uses a low-pressure incandescent lamp such as 12V or 6V.

As the common lamp 14, a fluorescent lamp or the like is used.

The blinking switch 12 blinks the service lamp 14 by turning on and off the power supply side of the service lighting circuit 10.

FIG. 6 is a perspective view showing a panel-type guide light according to the first embodiment of the disaster prevention lighting fixture of the present invention.

In the figure, 15 is a ceiling mounting portion, 16 is a hanging pipe, 17 is a main body, and 18 is a display panel.

The ceiling mounting section 15 is mounted on the ceiling,
The hanging pipe 16 is supported.

The main body 17 is attached to the lower end of the hanging pipe 16 and houses an emergency lighting unit, a normal lighting circuit, a common / emergency lamp, and the like, and supports a display plate 18 therein.

The display panel 18 is of an edge light type, and guides light from a common / emergency lamp in the main body 17 to illuminate the guide sign with an edge light.

FIG. 7 is a perspective view showing an emergency lighting device according to a second embodiment of the disaster prevention lighting device of the present invention.

In the figure, reference numeral 19 denotes an emergency lighting fixture body,
Reference numeral 20 denotes an emergency lighting unit, and reference numeral 21 denotes a pull cord of an inspection switch.

It is assumed that the emergency lighting apparatus main body 19 has a configuration of an emergency lighting apparatus other than the emergency unit, such as the common / emergency lamp 19a and the socket 19b.

The emergency lighting unit 20 has the configuration shown in FIG.

The inspection cord 21 is derived from an inspection switch (not shown) of the emergency lighting unit 20.

[0134]

According to each of the first to fifth aspects of the present invention, the discharge of the secondary battery is permitted by measuring the elapse of the predetermined period by the timer means and responding to the output generated when the set time comes. With this configuration, it is possible to provide an emergency lighting unit that automatically operates so as to extend the life of the secondary battery even if the installer does not care.

According to the first aspect of the present invention, an emergency lighting unit that reliably discharges can be provided by providing a discharge circuit for discharging the secondary battery when the set time of the timer means has come. .

According to the second aspect of the present invention, in addition, by discharging the secondary battery at a discharge rate of 0.1 to 0.3 C when the set time of the timer means comes, an effective discharge for extending the life can be provided. An emergency lighting unit can be provided.

According to the third aspect of the present invention, an emergency lighting unit having a large life extension effect is provided by allowing the secondary battery to self-discharge when the set time of the timer means is reached. be able to.

According to the fourth aspect of the present invention, the emergency lighting unit capable of extending the life of the secondary battery can be provided by setting the time set by the timer means to 8 months or less.

According to the fifth aspect of the present invention, in addition, since the secondary battery can be discharged only when the common lamp is turned off, an emergency lamp which does not affect the regular lighting regardless of the discharge is provided. Lighting unit can be provided.

According to the invention of claim 6, it is possible to provide a disaster prevention lighting fixture having the effects of claims 1 to 5.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a first embodiment of an emergency lighting unit of the present invention.

FIG. 2 is a circuit diagram showing a second embodiment of the emergency lighting unit of the present invention.

FIG. 3 is a circuit diagram showing a third embodiment of the emergency lighting unit of the present invention.

FIG. 4 is a circuit diagram showing a fourth embodiment of the emergency lighting unit of the present invention.

FIG. 5 is a circuit diagram showing a fifth embodiment of the emergency lighting unit of the present invention.

FIG. 6 is a perspective view showing a panel-shaped guide light according to the first embodiment of the lighting equipment for disaster prevention of the present invention.

FIG. 7 is a perspective view showing an emergency lighting device according to a second embodiment of the disaster prevention lighting device of the present invention.

FIG. 8 is a circuit diagram showing a conventional emergency lighting unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... AC power supply 2 ... Inspection switch 3 ... Power failure detection means 3a ... Normally closed contact 3b ... Switching contact 4 ... Charging circuit 4a ... Step-down transformer 4b ... Full-wave rectifier 5 ... Secondary battery 6 ... Timer means 6a ... Timer element 6b ... Relay 7 ... Discharge circuit 8 ... Emergency lighting circuit 9 ... Common and emergency lamp 10 ... Common lighting circuit

Claims (6)

[Claims] 1. A charging circuit connected to an AC power supply; a secondary battery connected and charged to the charging circuit; an emergency lighting circuit for lighting an emergency lamp using the secondary battery as a power supply; A power failure detecting means for detecting a power failure and connecting a secondary battery to an emergency lighting circuit when the power failure is detected; timer means for measuring an elapse of time and generating an output when a set time comes; A discharge circuit for discharging a secondary battery for a predetermined time in response to an output generated when the elapsed time is measured. 2. A discharge circuit for a rechargeable battery of 0.1 to 0.3 C
The emergency lighting unit according to claim 1, wherein the emergency lighting unit is discharged at a discharge rate of: A charging circuit connected to the AC power supply; a secondary battery connected to the charging circuit and charged; an emergency lighting circuit for lighting an emergency lamp using the secondary battery as a power supply; A power failure detecting means for detecting a power failure and connecting a secondary battery to an emergency lighting circuit when the power failure is detected; timer means for measuring an elapse of time and generating an output when a set time comes; Opening means for opening the secondary battery for a predetermined time in response to an output generated when the elapsed time is measured. 4. The emergency lighting unit according to claim 1, wherein the predetermined period is eight months or less. 5. A lighting device according to claim 1, further comprising a light-off detecting means for detecting that the common lamp is turned off and for enabling the timer means to control the secondary battery only when the light-off is detected. An emergency lighting unit according to any one of claims 1 to 4. 6. A disaster prevention lighting apparatus comprising: a disaster prevention lighting apparatus main body; and the emergency lighting unit according to any one of claims 1 to 5 disposed on the disaster prevention lighting apparatus main body. .