JPS63226896A - Emergency lighting appliance - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to an elevating type emergency lighting device.

(Prior art) When installing emergency lighting equipment in high places such as high ceilings,
There is one in which the lamp body is suspended by a rope so that it can be raised and lowered freely.

During maintenance 1 inspection work, the light body is lowered so that workers can perform the work safely without having to climb to a high place.

By the way, emergency lighting equipment has a switching device that detects and activates the emergency state of the commercial power supply.
An emergency power source is connected to the lamp to turn on the lamp in an emergency.

(Problems to be Solved by the Invention) To perform an inspection, that is, to confirm that the emergency lamp is lit, the commercial power supply is turned off, and a switching device is activated to turn on the lamp in an emergency. However, it is not desirable to turn the main switch on and off for this purpose because it also turns off other unrelated loads. On the other hand, it is troublesome to provide a commercial power on/off switch for inspection purposes in each lighting fixture. Roughly speaking, a switching device and an emergency power source that are supplied with commercial power through the main body are installed on the lamp body side, and by lowering the lamp, the switching device detects a commercial power interruption and turns on the lamp in an emergency. In this case,
When the lamp body is separated from the main body to replace parts other than the lamp, the emergency lamp will remain lit at all times, including while ascending and descending, and the emergency power supply will be undesirably consumed, causing the lamp body to rise again. There was a problem that the capacity of the emergency power supply was insufficient when the unit was brought close to the main unit.

[Structure of the invention]

(Means for Solving the Problems) The present invention suspends the main body from the main body through a cable so that it can be raised and lowered freely, and also includes an emergency power source, a lamp connected to the power source, and an emergency power supply for the lamp and the emergency power source. A switching device is provided between the power sources, which is opened when the lamp body approaches the main body, and a switching device is supplied with the commercial power through the main body. When the condition is detected and closed, and the lamp body approaches the main body, in the event of a commercial power emergency, power is supplied from the emergency power supply to the lamp via the switch section, and the switch section is roughly connected to the lamp body. It is characterized by connecting open switches in parallel.

(Function) At the time of inspection, the emergency lamp will not turn on undesirably when the lamp is separated from the main body, and at the time of inspection, the emergency lamp can be turned on immediately by opening the above-mentioned normally open switch. The purpose is to provide emergency lighting equipment that can

(Example) Reference numeral 1 denotes a main body connected to a commercial power source 2, 3 a cable hanging from the main body, and 4 a lamp body suspended from the main body 1 via the cable 3 so as to be movable up and down. The lamp body 4 includes an emergency power source 5, a lamp 6 connected to the emergency power source 5, and an emergency power source 5. It has a switch part 7 which is inserted between the lamps 6 and closes when the lamp body 4 approaches the main body 1, a switching device 8, and a normally open switch 10. The switching device 8 is supplied with commercial power 2 through the main body 1 when the lamp 4 approaches the main body 1, and detects an emergency state of the power supply 2 or separation of the lamp 4 from the main body 1, and closes the switch. At the same time, when the lamp body 4 approaches the main body 1, in case of an emergency of the commercial power supply 2, the emergency power supply 5
Power is supplied to the lamp 6 from the switch unit 7 through the switch unit 7. Further, the normally open switch 10 is connected in parallel to the switch section 7. To describe the above embodiment in more detail, the main body 1 has two sets of fixed contacts 12.12 and 1.3.13, and the lamp body 4 has the fixed contacts 12.12.13.13.
Correspondingly, two sets of movable contacts 14.14 and 15.
It has 15. Then, the fixed side contact 12 of the main body 1.
12 is connected to the commercial power supply 2, and the other fixed side contact 1
3.13 are connected to each other. Further, the movable side contacts 14.14 of the lamp body 4 are connected to the input end of the transformer 16, the output end thereof is connected to the input side of the rectifier circuit 17, and the output side of the rectifier circuit 17 is connected to the input end of the transformer 16. and is connected to the lamp 6. Further, 18 and 19 are a charging resistor and a capacitor, which are connected to the output terminal of the rectifier circuit 17. The other contact 15 on the movable side is connected to both ends of the capacitor 19 via the emergency power supply 5. The switch section 7 is constituted by the fixed contact 13.13 and the movable contact 15.15.

Said normally open switch 10 is connected to said contact 15.15. Further, a power failure detection relay 8 is connected to the output end of the rectifier circuit 17, and the switching device 8 is connected to this relay 9.
controlled by Further, in FIG. 2, 21 is a reflective shade, 22 is a winding device for the cable 3, 23 is a roller, and 24 is a terminal block. This figure shows a state in which the lamp body 4 is separated from the main body 1.

With this configuration, when the lamp body 4 approaches the main body 1, the switch section 7
A fixed side contact 13.13 and a movable side contact 15.
Since it is in contact with 15, it is held in the open state. In addition, other fixed side contacts 12, 12 and movable side contacts 14.
14, whereby the switching device 8 is in contact with the main body 1
A commercial power source 2 is supplied through the . In this state, if the commercial power source 2 is normal, the switching device 8 is opened by the relay 9, and the emergency power source 5 is maintained in a charged state.

Next, when the commercial power supply 2 is in an emergency state, that is, it is cut off, the relay 9 detects this, and the switching device 8 performs a switching operation and closes. Therefore, the lamp 6 is turned on in an emergency.

Next, when the lamp body 4 is lowered via the cable 3 by the winding device 22 and separated from the main body 1, the switch part 7 is opened. At the same time, the relay 9 detects this separation, and the switching device 8 opens. On the other hand, since the switch section 7 is opened when the lamp body 4 is separated from the main body 1, the lamp 6 is not connected to the emergency power source 5 and does not light up. When the lamp body 1 descends roughly and reaches the operator's hand, the normally open switch 10 is operated to close it. As a result, the lamp 6 is turned on, and the presence or absence of an abnormality is checked. After the inspection is completed, if you stop operating the normally open switch 10, the normally open switch 1
0 is open and the lamp 6 is turned off. After the lighting ends, the cable 3 is wound up by the winding device 22, and the lamp body 4 is raised.

When the lamp body 4 approaches the main body 1, the switch part 7 is opened, the commercial power supply 2 is supplied to the lamp body 4 via the main body 1, the relay 18 is energized, and the switching device 8 is turned to the open side. Switching works. Therefore, the lamp 6 does not light up and enters a standby state.

In this way, during inspection, the lamp 6 does not light up in an emergency when the lamp 4 is separated from the main body 1, including when it is being raised or lowered, so when the lamp 4 is raised or lowered for inspection, the emergency power source 5 Undesirable wear and tear can be prevented.

FIG. 3 shows another embodiment, in which a normally open switch 30a is provided on the lamp body 4 side and a pressing portion 31 is provided on the main body 1 side as the switch part 7, and when the lamp body 4 approaches the main body 1, the switch 30a is pressed by the suppressor 31 to close the switch 30. Other parts that are the same as those in the first embodiment are given the same reference numerals and detailed explanations will be omitted.

(Effects of the Invention) As described in detail above, the present invention suspends the main body from the main body via a cable so that it can be raised and lowered freely, and the main body has an emergency power source connected to the lamp, this lamp and the emergency power source. A switch section that closes when the lamp body approaches the main body, and a switching device that is supplied with the commercial power through the main body are provided between the power sources. detects an emergency state and closes the lamp, and when the lamp body approaches the main body, in the event of an emergency of the commercial power supply, the emergency power supply is supplied to the lamp via the switch section, and the switch section is constantly supplied with power. Since it is equipped with an open switch, the emergency lighting equipment to be inspected can be inspected independently and other loads will not be turned off at the same time. This prevents the battery from being consumed as desired and solves the problem of insufficient capacity of the emergency power supply.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of one embodiment of the present invention, FIG. 2 is a partially cutaway front view, and FIG. 3 is a circuit diagram of another embodiment. 1...Main body, 2...Commercial power supply, 3...Cable. 4... Lamp body, 5... Emergency power supply, 6... Lamp 7
...Switch section, 8...Switching device. 10... Normally open switch.

Claims (1)

[Claims] (1) A main body connected to a commercial power supply; A cable hanging from the main body; A lamp body suspended from the main body via the cable so as to be freely raised and lowered; a lamp connected to the emergency power source; a switch section that is inserted between the emergency power source and the lamp and closes when the lamp body approaches the main body; and the main body of the lamp body. When approaching the main body, the commercial power supply is supplied through the main body, and the lamp closes upon detecting an emergency state of the power supply or separation of the light body from the main body, and when the light body approaches the main body. a switching device for supplying power to the lamp from the emergency power supply via the switch unit in the case of an emergency of the commercial power supply;
An emergency lighting device comprising a normally open switch connected in parallel to the switch section.