JPS5829597Y2 - Emergency light - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of emergency lights, which are designed to turn on during power outages and earthquakes.

Conventionally, safety lights have been used that switch over to batteries to keep the lights on when there is a power outage.

However, this type of security light is designed to remain on at all times and not turn off in the event of a power outage, and is primarily intended for use in public places.

However, in ordinary households, it is necessary to turn on the lights when an earthquake occurs at night, when lights are not normally on, or when a fire breaks out in the neighborhood at night and the power supply is cut off.

Therefore, the present invention has been developed in consideration of the above, and has produced an emergency light that turns on during power outages and earthquakes.

Hereinafter, the present invention will be explained based on embodiments shown in the accompanying drawings.

In the figure, 1 is an AC power input terminal, a transformer 2 and a rectifier 3 are connected to this AC power input terminal 1, and both output terminals of the rectifier 3 are connected to both ends of a battery 4. The battery 4 is charged by connecting it to a commercial power source.

It is a hot theory that this battery 4 is equipped with an overcharge prevention circuit.

The battery 4 has a normally closed contact S1 of a relay 6 and a lamp 5 connected in series.

Further, the AC power input terminal 1 is connected in series with the excitation coil 9 of the relay 6, the normally open contact S2, and the mercury switch 7 which is turned off by vibration.

This mercury switch 7 is an electrode that is turned ON by mercury 7c? a,? When the mercury 7c shakes due to vibration, the section b is turned off and the vibration is detected.

Further, the normally open contact S2 of the relay 6 is connected in parallel with a reset switch 8 such as a push button switch that can temporarily turn on the normally open contact S2.

The above-mentioned emergency light is housed in a case 10 shown in FIG. 1, and the commercial power input terminal 1 is connected to a plug 11 protruding from the outside of the case 10, and the light is not connected to an outlet.

Since the present invention has the above structure, when a power source is connected to the AC power input terminal 1 in the state shown in FIG. 2, the battery 4 and the lamp 5 are energized.

Therefore, when the reset switch 8 is pressed, the excitation coil 9 is energized via the reset switch 8, the normally closed contact S1 of the relay 6 is turned OFF, the normally open contact S2 is turned ON, and even if the reset switch 8 is released, it remains ON. The exciting coil continues to be excited through the normally open contact s2, and this state is maintained.

Then, the battery 4 is energized, but the lamp 5 is not energized by the normally closed contact s1, which is turned off.

Therefore, the power to the AC power input terminal 1 is stopped due to a power outage, or the electrode of the mercury switch 7 is damaged due to vibration. a,?
When the period b is turned off, the current to the excitation coil 9 is stopped and the excitation coil 9 is demagnetized, the normally closed contact s1 is turned on, and the lamp 5 is lit by the battery 4.

Although the mercury switch 7 is repeatedly turned on and off due to vibration, once it is turned off and the excitation coil 9 is demagnetized, the excitation coil 9 remains demagnetized until the reset switch 8 is turned on next time.

Since the emergency light of the present invention is as described above, it is automatically turned on in the event of an earthquake or power outage, and is useful for nighttime emergency lighting in general households and for securing evacuation routes.

In addition, in this case, the relay 6 is self-held by the reset switch 8, so if the reset switch 8 is not operated, it can be used as a night light, and can be used depending on whether or not it is necessary to turn on the light at night. .

Further, as described above, the structure of the present invention is extremely simple, so it can be manufactured compactly, can be realized as a light plugged into an outlet, and can be manufactured at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the proposed emergency light, with FIG. 1 being an external view and FIG. 2 being an internal wiring diagram. 1 - AC power input terminal, 2 - transformer, 3 - rectifier, 4 - battery, 5 - lamp, 6 - relay, 7 - mercury switch, 8 - reset switch, s1 - normally closed contact, S2 - normally open contact.

Claims (1)

[Claims for Utility Model Registration] A transformer 2 and a rectifier 3 are connected to an AC power input terminal 1, and both output terminals of the rectifier 3 are connected to both ends of a battery 4 to connect the AC power input terminal 1 to a commercial power source. By doing so, the battery 4 is charged. The normally closed contact S1 of the relay 6 and the lamp 5 are connected in series, and the excitation coil 9 of the relay 6, the normally open contact S2, and the mercury switch 7 that is turned off by vibration are connected to the AC power input terminal 1. A J1 normal relay is connected in series, and furthermore, a reset switch 8 is connected in parallel to the normally open contact S2 of the relay 6, which can temporarily turn on the normally open contact S2.