JPS5855637B2 - emergency lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides illumination at a first illumination level during normal times and illumination at a second illumination level higher than the first illumination level during an emergency, that is, an abnormality or a power outage. The present invention relates to an emergency lighting device that provides different evacuation guidance lighting in times of emergency, and is suitable for example as a guide light device installed in movie theaters and the like.

Originally, a guide light device increases the brightness of the guide light sign board by turning on its built-in lighting at all times, allowing passersby or those in the room to recognize the guide light sign board, and informing them of the exit in case of an emergency. .

However, if the brightness of the guide light sign board installed in a movie theater or the like is high, it will disturb the movie viewing experience and spoil the atmosphere.In such cases, it is necessary to lower the brightness of the guide light sign board.

However, in the event of an emergency, it is necessary to increase the brightness of the guide light sign board so that passersby or occupants can recognize the guide light sign board.

That is, it is desirable that switching from dimmed lighting to full brightness lighting be performed not only at the time of a power outage but also at the same time as an abnormal condition occurs, such as when an emergency bell rings or a fire alarm occurs, that is, at the time of an abnormality.

In order to address these needs, Japanese Utility Model Application Publication No. 47-27584 discloses a first illumination lamp that illuminates at a first illumination level at all times, and a second illumination lamp that illuminates at a higher illumination level than the first illumination level in an emergency. a second illumination lamp illuminating at the level; An operating relay device (emergency relay) for switching the second lighting level is provided in the emergency lighting equipment, and the operating relay device is activated by a transmitting device activated by the operation of the fire detection device in the event of an abnormality. By opening the normally closed contacts of the emergency lighting device, i.e. the fire detection device, which switches the lighting level to said second lighting level, the transmitting device generates a control signal which de-energizes the operating relay device in the emergency lighting device to activate the emergency lighting device. An emergency lighting device has been proposed that switches the operating mode of a lighting device from a normal operating mode to an emergency mode.

In such conventional devices, a long connection lead is usually used between the operation relay device and the transmitter, but if this connection lead is short-circuited due to an external cause such as a fire or earthquake, In this case, the operation relay device may continue to be energized and the operating mode of the emergency lighting equipment may not be switched, and there is a risk that the operating mode may remain in the normal operating mode even in an emergency.

The present invention was made to solve the above-mentioned problem, and even if the connection lead between the operation relay device and the repeater activated by the fire detection device is short-circuited, the operation mode can be reliably changed to the normal operation mode. (first illumination level) to emergency operation mode (second illumination level).
Moreover, it is an object of the present invention to provide an emergency lighting device in which the power source for energizing the operation relay device is not adversely affected by overcurrent.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

A is a first lighting light 1 that is an emergency lighting device and exhibits a dimmed state.
, a second illumination lamp 2 that turns on all lights, and an inverter device 3 that turns on the second illumination lamp 2 during a power outage.

The first lighting lamp 1 is connected to a commercial power source 7 via a ballast 4, an inspection switch 5, and a remote switch 6, and is turned on.

This first illumination lamp 1 is covered with a dimming cover 8, and the first illumination lamp 1 is
It is designed to exhibit an illumination level of , that is, a dimmed state.

Similarly, a low-wag light source may be used without using the integrated dimming cover 8, or the light may be attenuated by a dimming circuit.

The second illumination light 2 is connected to a commercial power source 7 via a ballast 9 and a relay switch 10, and is connected to an oscillation transformer 18 (described later) via a changeover switch 12.13 of a power failure detection relay 11.
It is connected to the output coil 19 of the emergency lighting device A, and is fully turned on in the event of an abnormality, and by this second lighting lamp 2 alone or in collaboration with the first lighting lamp 1, this emergency lighting device A is lower than the first lighting level. Illumination is performed at a higher second illumination level.

The inverter device 3 is composed of a storage battery 14 that is charged by the regular output of the commercial power source 7, and an inverter circuit 16 that is activated by the storage battery 14 when a changeover switch 15 is closed during a power outage. transistor 1
7 and an oscillation transformer 18.

Reference numeral B is a transmitter for notifying an abnormal state, and has a normally closed alarm switch 20 that is opened by, for example, starting an emergency bell or detecting a fire by a fire detector.

C is a repeater that receives the notification output from the transmitter B, and based on the notification output, controls the operating relay 21 of the relay switch 10 of the emergency lighting device A and notifies an external organization.

This repeater C connects the commercial power supply 22 to the repeater power supply 22 with a commercial power supply supplied from a power supply path separate from the commercial power supply 7 of the emergency lighting equipment A.
It has a step-down transformer 23 connected to this repeater power supply 22, and the step-down voltage 2 of the transformer 23 is
A second series closed circuit 24 is formed by the next side, the low voltage relay 25, and the notification switch 20, and the low voltage relay switch 26 is connected to the commercial power supply 22 with a fuse 27 as an overcurrent circuit breaker. is inserted.

Reference numeral 30 denotes a connection lead provided between the repeater C and the emergency lighting equipment A, and a first series connection is established between this, the series circuit of the low voltage relay switch 26 and the fuse 27, the repeater power supply 22, and the operation relay 21. It constitutes a circuit.

The external terminal 28 of the repeater C is connected to this connection lead 3.
0 to the operation relay 21 and to a signal device of an external organization, and the relay power supply 2
2 is thus connected to the relay side of the connection cord 30, and the operation relay 21 is driven by the power source 22 for the relay.

31 is a transformer relay. In the above configuration, since the notification switch 20 is normally closed, the repeater power supply 22 is supplied to the low voltage relay 25 in the repeater C, the low voltage relay switch 26 is closed, and therefore the operation relay 21 The relay power supply 22 is supplied with power through the connection lead 30, the operation relay 21 is energized, and the relay switch 10 is opened.

Therefore, the second illumination lamp 2 is turned off, the first illumination lamp 1 is turned on by the commercial power supply 7, and the emergency illumination device A is at the first illumination level, that is, the light sensitive state.

Next, in the event of an abnormality such as a fire, the alarm switch 20 of the transmitter B is opened by starting an emergency bell or by sensing a fire detector.

As a result, the second step-down secondary circuit of the step-down transformer 23
The series closed circuit 24 is opened, and the low voltage relay 2
5 opens the relay switch 26, the output of the external terminal 28 disappears, and the occurrence of an abnormal condition is notified to the external engine.
Since the power supply to is also stopped, the relay 21 is deenergized (energized is stopped) and the relay switch 10 is closed.

Therefore, the commercial power supply voltage is applied to the second illumination lamp 2 via the relay switch 10, the second illumination lamp 2 is fully lit, and the illumination state of the emergency illumination device A is changed to a second illumination level higher than the first illumination level. Keep the lighting level at .

Next, in the above-mentioned normal state, when a short circuit accident occurs between the connecting leads 30, an overcurrent due to the short circuit flows through the fuse 27 in the repeater C, melting the fuse 27, and supplying power to the repeater to the operation relay 21. 22 is stopped, or when a disconnection accident occurs between the connecting leads 30, the power supply of the repeater power supply 22 to the operation relay 21 is stopped, and in either case, the operation relay 21 is de-energized and energized. When the relay switch 10 is closed, the second illumination lamp 2 is turned on at full brightness, as in the case of an abnormality described above, and the illumination state of the emergency illumination device A is maintained at the same second illumination level as described above, and the connection It notifies you of a short circuit or connection between the leads 30, and also prepares for the occurrence of an abnormal condition.

Further, in the event of a power outage, the first illumination light 1 is turned off, but the second illumination light 2 is fully illuminated by the inverter device 3 that operates using the storage battery 14 as a power source, and the second illumination light 2 is turned on at a second illumination level brighter than the first illumination level. Emergency lighting equipment A is designed to illuminate.

As mentioned above, the emergency lighting device of the present invention is powered by a commercial power source and can be used in normal times, abnormal situations, or power outages.
In other words, the emergency lighting equipment has different operating modes in an emergency, a power supply for a repeater, and is provided in the emergency lighting equipment and is energized by the power supply for the repeater, and in an emergency or when the energization is stopped, the above-mentioned An operation relay device that switches the normal operation mode of the emergency lighting equipment to an emergency operation mode, and an operation relay device that is installed outside the emergency lighting device and interposed in the power supply path of the operation relay device from the power supply for the repeater, and is connected to an operation relay device that switches the normal operation mode of the emergency lighting equipment to the emergency operation mode. A repeater that generates a signal for controlling the operating relay device based on the notification output from the transmitter, which is interposed in series between the power source for the repeater and the operating relay device, The relay device is characterized by being equipped with an overcurrent breaker that cuts off the power supply for the repeater when the connecting lead between the repeaters is short-circuited. It reliably switches the operating mode of emergency lighting equipment from normal operating mode to emergency operating mode, and also when the connecting lead connecting the emergency lighting equipment and repeater, which are normally placed apart from each other, is short-circuited. The overcurrent circuit breaker is activated to cut off the power supply to the repeater, preventing damage to the repeater, and deenergizing the operation relay device (stopping energization) to ensure that the operating mode is the same as normal. Since switching occurs in an emergency, there is no inconvenience of the normal operating mode remaining even in an emergency, and the power supply for the repeater will not be adversely affected by overcurrent due to a short circuit.
Furthermore, a plurality of connection leads can be drawn out from one repeater, and a plurality of emergency lighting devices can be controlled all at once.

[Brief explanation of drawings]

The drawing is an electrical circuit diagram showing an embodiment of the device of the present invention. 7...Commercial power supply, 1...First lighting light,
10...Relay switch, 14...Battery, 2...Second lighting light, A...Emergency lighting equipment, B...Movement Indicator, 21... Operation relay, C... Repeater, 30... Connection IJ-do, 22... Power supply for repeater, 23...
... Step-down transformer, 20 ... Notification switch,
25...Low voltage relay 27...Fuse (overcurrent breaker), 31...Transformer relay.

Claims (1)

[Claims] 1 A commercial power supply, emergency lighting equipment that is energized by this commercial power supply and whose operation mode differs between normal times, abnormalities, power outages, and emergencies, a repeater power supply, and the emergency lighting equipment inside the above-mentioned emergency lighting equipment. an operating relay device which is provided in the relay device and is energized by the repeater power supply and switches the normal operating mode of the emergency lighting equipment to the emergency operating mode in an emergency or when the energization is stopped; and the emergency lighting device. A relay that is provided outside the device and is interposed in the power supply path of the operating relay device from the power source for the repeater, and that generates a signal for controlling the operating relay device based on the notification output from the transmitter that is generated in the event of an abnormality. an overcurrent breaker that is interposed in series between the repeater, the repeater power source, and the operating relay device, and cuts off the repeater power source when a connection lead between the operating relay device and the repeater is short-circuited; An emergency lighting device characterized by comprising: