JP2000106012A - Emergency lighting unit and disaster prevention lighting equipment - Google Patents

Abstract

(57) Abstract: At least a high-frequency output part of an emergency inverter circuit and a wiring board on which electric components constituting other circuits are mounted are divided, and the latter wiring board has relatively low insulation property. To provide an inexpensive emergency lighting unit and a disaster prevention lighting fixture using the same. A charging circuit connected to an AC power supply; a secondary battery connected to the charging circuit and charged; a high-frequency output unit including an output transformer; Emergency inverter circuit 8 for lighting the lamp
And; when a power failure of the AC power supply is detected,
A power failure detection circuit 3 for connecting the secondary battery to the emergency inverter circuit; a first wiring board on which at least a high frequency output part of the emergency inverter circuit is mounted and made of a highly insulating material; And a second wiring board made of a material having a lower insulating property than the first wiring board.

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]

2. Description of the Related Art FIG. 4 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 having an output unit including a high-frequency output transformer, 108 denotes a fluorescent lamp, and 109 denotes a regular lighting circuit.

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

The secondary winding 104S of the step-down transformer 104
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.

Here, generally, the electric components constituting the emergency light lighting unit are mounted on a wiring board mainly composed of, for example, glass epoxy.

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
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 regular 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.

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.

[0016]

However, the glass epoxy board on which the electric components constituting the emergency lighting unit are mounted has relatively high insulation properties and excellent reliability, but the board is usually expensive. For this reason, it was difficult to make the emergency light lighting unit inexpensive.

Therefore, the present invention divides at least the high-frequency output section of the emergency inverter circuit and the wiring board on which each of the electric components constituting the other circuits is mounted, and makes the latter wiring board relatively low insulative. An object of the present invention is to provide an inexpensive emergency lighting unit and a disaster prevention lighting device using the same, by adopting an emergency lighting unit.

[0018]

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; and a high-frequency output unit including an output transformer. An emergency inverter circuit for lighting an emergency lamp at a high frequency using a secondary battery as a power supply; and a power failure detection circuit for detecting a power failure of an AC power supply and connecting the secondary battery to the emergency inverter circuit when the power failure is detected; At least implement the high frequency output part of the emergency inverter circuit,
A first wiring board made of a high-insulating material; and an electric component other than an electric component constituting a high-frequency generating section mounted thereon, and the first
A second wiring board made of a material having a lower insulating property than that of the first wiring board.

In the present invention and the following inventions, the 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 the 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 inverter 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 higher than that at the commercial frequency. It is convenient.

Further, the emergency inverter circuit may be formed separately from the regular lighting circuit, or may be shared with the regular lighting circuit. In the latter case, the power failure detection circuit 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 inverter circuit, and a DC power supply obtained by rectifying an AC power supply is connected when operating as a regular lighting circuit.

When the service lighting circuit is formed separately from the emergency inverter circuit, a ballast constituted by an inexpensive coil and iron core can be used.

It is most convenient to use a relay as the power failure detection circuit. 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 hot-cathode or cold-cathode fluorescent lamp, an incandescent lamp, or the like 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.

Thus, in the present invention, at least the high-frequency output part of the emergency inverter circuit and the wiring board on which the electric components constituting the other circuits are mounted are divided, and the latter wiring board is relatively separated. Since a low-insulation material is used, the amount of expensive wiring boards used can be reduced, so that an inexpensive emergency lighting unit and a disaster prevention lighting device using the same can be provided.

The emergency lighting unit according to the second aspect of the present invention,
2. The emergency lighting unit according to claim 1, wherein the second wiring board is a wiring board made of paper phenol.

In general, the paper phenol board is inferior in dielectric strength than other wiring boards, but mounts electrical components other than the output section for outputting a high frequency for energizing the emergency lamp. There is no loss of practical reliability. In particular, when a lamp requiring a high voltage for starting, such as a cold-cathode rare gas discharge lamp that does not preheat the electrodes during startup, is used as an emergency lamp, the high-frequency output of the emergency inverter circuit has a considerable withstand voltage. However, the present invention is particularly advantageous because the withstand voltage of other components is not required as high as the withstand voltage of the output unit.

The disaster prevention lighting apparatus according to the third aspect of the present invention is provided with the disaster prevention lighting apparatus main body and the disaster prevention lighting apparatus main body.
Or the emergency lighting unit described in 2 above.

In the present invention, “disaster prevention lighting equipment” means
It is a concept including a guide light and an emergency lighting device. Here, "guide light" refers to lighting equipment that clearly indicates the location and direction of the fire to people in the building, and "emergency lighting equipment" refers to disasters such as earthquakes and fires. Lighting equipment provided to facilitate the rescue of life and fire fighting when a power outage is caused by oneself, etc. It illuminates rooms, corridors, stairs, etc. with specified brightness when a power outage occurs. 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 / combined use 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 single lamp is an emergency lighting fixture to which one fluorescent lamp is mounted, and is a common-use / emergency lamp that is used for both normal and emergency use of the fluorescent lamp. The multi-lamp is an emergency lighting fixture to which a plurality of fluorescent lamps are mounted, and one of the fluorescent lamps is a general / emergency lamp that is turned on even in an emergency. Other lamps are common use lamps.

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

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 lit by the unit.

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

Further, in the present invention, the regular lighting circuit and the emergency inverter circuit can be configured separately for both the guide light and the emergency lighting equipment. Further, the lighting circuit of a single lighting circuit may be configured to be used for both normal and emergency use as needed.

The "disaster prevention lighting device main body" means a configuration in which a disaster prevention lighting device is completed by incorporating an emergency lighting unit.

[0040]

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 according to the present invention.

In the drawing, 1 is an AC power supply, 2 is a check switch, 3 is a power failure detection circuit, 4 is a charging circuit, 5 is a secondary battery, 6 is timer means, 7 is a discharging circuit, and 8 is a high frequency output transformer. An emergency inverter circuit mainly including an inverter having an output unit including: a common / emergency lamp 9; and a normal lighting circuit 10;

The AC power supply 1 is connected via a check switch 2 to both ends of a parallel circuit of the power failure detection circuit 2 and the charging circuit 4. The power failure detection circuit 3 comprises a voltage relay, and when a power failure is detected, the normally closed contact 3a is connected to the emergency inverter circuit 8
Is connected to the secondary battery 5 and the switching contact 3b is connected to the output terminal of the emergency inverter circuit 8 to the common / emergency lamp 9 instead of the common lighting circuit 10. Connected to The charging circuit 4
It comprises a step-down transformer 4a and a full-wave rectifier 4b. The step-down transformer 4a has a primary winding 4aP connected to both ends of the AC power supply 1, and a secondary winding 4aS 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 in series between the charging circuit 4 and the secondary battery 5, and the normally open contact 6b2 is connected to the discharging 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 inverter circuit 8 is based on a high-frequency lighting system mainly including an inverter, and includes an output transformer for outputting the high frequency.

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, for example, a cold cathode discharge lamp in which xenon or the like is sealed.

Of the configuration described above, the parts excluding the AC power supply 1 and the common / emergency lamp 9 constitute an emergency lighting unit. In addition, at least the high-frequency output part of the emergency inverter circuit is mounted on a first wiring board made of glass epoxy, while the electric parts except the constituent electric parts of the high-frequency generation part are made of a second wiring board made of paper phenol. Has been implemented.

When the AC power supply 1 is normal, the power failure detection circuit 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, the charging circuit 4 is always connected to the AC power supply 1 via the check switch 2 when the AC power supply 1 is normal, 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 circuit 3 is deenergized, so that the normally closed contact 3a is closed and the switching contact 3b opens the normal lighting circuit 10. Then, it switches to the emergency inverter circuit 8. That is, the service / emergency lamp 9 is connected from the service lighting circuit 10 to the emergency inverter circuit 8. With this switching operation, if the secondary battery 5 is normal,
Since the emergency inverter circuit 8 starts operating using the output of the secondary battery 5 as a power source and outputs a high frequency voltage, the common / emergency lamp 9 is lit at a high frequency. In this manner, the emergency lighting unit can be inspected.

Next, in the timer means 6, the timer element 6a starts the time counting operation at the same time when the AC power supply 1 is turned on. Therefore, when a predetermined period of time, for example, a predetermined six months has elapsed, the timer element 6a generates a timer output. , 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 the 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 detection circuit 3 detects a power failure, it operates similarly to the conventional emergency lighting unit.

FIG. 2 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 part, 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 common lighting circuit, a common / emergency lamp, and the like, and supports a display plate 18.

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

FIG. 3 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 fixture main body 19 has a configuration of an emergency lighting fixture other than the emergency unit, such as the common / emergency lamp 19a and the socket 19b.

[0061]

According to each of the first and second aspects of the present invention, at least the high-frequency output section of the emergency inverter circuit and the wiring board on which each of the electrical components constituting the other circuits are mounted are divided into two parts. Since a relatively low-insulating wiring board is used, the amount of expensive wiring boards used can be reduced, so that an inexpensive emergency lighting unit and a disaster prevention lighting fixture using the same can be provided.

According to the third aspect of the present invention, it is possible to provide a disaster prevention lighting fixture having the effect of the first or second aspect.

[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 perspective view showing a panel-type guide light according to the first embodiment of the lighting equipment for disaster prevention of the present invention.

FIG. 3 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. 4 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 circuit 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 inverter circuit 9: Regular / emergency lamp 10: Regular lighting circuit

Claims (3)

[Claims] 1. A high-frequency output section including a charging circuit connected to an AC power supply; a secondary battery connected to the charging circuit and charged; and an output transformer including an output transformer. A power failure detection circuit for detecting a power failure of an AC power supply and connecting a secondary battery to the emergency inverter circuit when a power failure is detected; and mounting at least a high frequency output unit of the emergency inverter circuit, A first wiring board made of an insulating material; and a second wiring board made of an insulating material having a relatively lower insulating material than the first wiring board, on which electric components other than the electric components constituting the high-frequency generator are mounted. An emergency lighting unit, comprising: 2. The emergency lighting unit according to claim 1, wherein the second wiring board is a wiring board made of paper phenol. 3. A disaster prevention lighting device comprising: a disaster prevention lighting device main body; and the emergency lighting unit according to claim 1 disposed on the disaster prevention lighting device main body.