JPH07133084A - Power failure lamp device for elevator - Google Patents

Abstract

PURPOSE:To provide a power failure lamp device for an elevator which prolongs the life by electric-discharging a battery and prevent passengers from being troubled even if a power failure occurs after the electric discharge. CONSTITUTION:At least two pairs of batteries 3A and 3B for putting ON a power failure lamp are installed, and the power failure lamp inspection switches 1a1 and 1a2 for permitting the manual operation for the connection between the power failure lamp and the batteries 3A and 3B, and the power failure lamp inspection circuits 4, 5, 6, T, 4a4, and 5a4 which successively selects the connection of at least two batteries 3A and 3B for the power failure lamp at each pressing of the inspection switches 1a1 and 1a2 and permits the set of the connection time limit are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator power failure light device, and more particularly to an elevator power failure light device suitable for testing the lighting state.

[0002]

2. Description of the Related Art Confirmation of a power failure light device provided in an elevator car is performed by cutting off the power supply of the illumination light device.
Since the voltage detection device provided in the lighting device is deactivated, the power failure light is turned on, and the maintenance personnel visually confirmed the state in the elevator car, work time and labor are required, and If it is lit, it cannot be determined whether the power failure lamp is defective or the battery is defective.
As described in Japanese Patent Laid-Open No. 100,
There was one that measured the illuminance of a power failure lamp.

[0003]

Although the above-mentioned prior art can confirm the abnormality of the power failure lamp and the battery in a short time, there is a drawback that the battery sometimes has a short life unless it is discharged to some extent. If a power failure occurs after the battery has been fully discharged and the battery is not fully charged, the power failure lamp will go out in a short time due to insufficient battery charge, and passengers trapped in the car will feel uneasy. was there.

It is an object of the present invention to provide an elevator power failure light device that discharges the battery to maintain its life and does not cause any inconvenience to passengers even if a power failure occurs immediately after discharge.

[0005]

In order to achieve the above-mentioned object, the present invention provides a power failure detection circuit for detecting a power failure of the power source of the lighting lamp by providing a lighting lamp and a power failure lamp in a car, and detecting the power failure. When the circuit detects a power failure, in an elevator power failure light device configured to connect a battery to the power failure lamp,
At least two batteries are installed, and a power failure light inspection switch that enables connection between the power failure light and the battery by manual operation, and at least two batteries for the power failure light each time the inspection switch is pressed. It is provided with a power failure light inspection circuit that can switch the connection sequentially and can set the connection time limit.

[0006]

With this configuration, each time the inspection switch is pressed, the power failure light and at least two batteries are sequentially switched and connected, and the connected one battery lights up the power failure lamp and outputs the power for a predetermined time. Discharge is performed. In this way, the battery is discharged at a predetermined cycle of the inspection interval of the power failure lamp, and when the power failure occurs, the power failure lamp is lit by the fully charged battery, so that the life of the battery can be extended. The power outage light will not go out in a short time even after a power outage right after the power outage light inspection.

[0007]

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

In the figure, between the power sources P and N, a contact box 1a1 of a blackout lamp switch (not shown), a normally closed contact 6b (to be described later), and a normally closed contact (to be described later) are provided in a switch box that is normally locked on an operation panel (not shown) of the car. Normally-closed contacts 4a1 to 4a for connecting a closed contact 5b1, a contact Tb1 described later, and a battery 3A for lighting a power failure lamp 2 installed in a car.
4, the battery connection relays 4 having the normally closed contacts 4b1 and 4b2 are connected in series, and the contacts 1a are connected in series.
The normally open contact 4a1 is connected in parallel to the 1 and the normally closed contact 6b.

Similarly, a contact point 1a2 of a power failure lamp switch (not shown) and a normally open contact point 6a described later are provided between the power supplies P and N.
, A normally closed contact 4b1, a contact Tb2, and a battery 3A, which is installed separately from the battery 3A and connects the battery 3B for lighting the power failure lamp 2, the normally open contacts 5a1 to 5a4, the normally closed contact 5b1,
The battery connection relays 5 having 5b2 are connected in series, and the normally open contact 5a1 is connected in parallel to the contact 1a2 and the normally open contact 6a connected in series.

Similarly, between the power supplies P and N, there are normally open contacts 4a2 and 5a2 connected in parallel and contacts Tb1 and Tb2 that are energized and open after a predetermined time period (for example, 60 minutes). A settable timer T is connected in series.

Similarly, the normally open contact 4a3 is connected between the power source P and the terminal 6S of the keep relay 6, the normally open contact 5a3 is connected between the power source P and the terminal 6R of the keep relay 6, and the terminal of the keep relay 6 is connected. 6n and the power supply N are connected. Here, the keep relay 6 is a relay that maintains an energized state until a voltage is applied to the terminal 6R when a voltage is applied to the terminal 6S, and has a normally open contact 6a and a normally closed contact 6b. .

Similarly, the normally closed contact 7 is connected between the power supplies P and N.
The power failure detection relay 7 having b1 and 7b2 is connected, and the primary coil 8a of the transformer 8 is connected between the power supplies P and N.

Here, the transformer 8 boosts the power of the power source P-N by the turn ratio of the primary coil 8A and the secondary coil 8B. A diode 9 and a resistor R are provided at both ends of the secondary coil.
, The normally closed contact 4b2, and the battery 3A are connected in series.

The normally closed contact 5b2 and the battery 3 are provided between the connection point of the resistor R and the normally open contact 4b2 and the cathode of the battery 3A.
B is connected. Further, the normally open contact 4a4 and the power failure lamp 2 are connected between the connection point between the normally closed contact 4b2 and the anode of the battery 3A, and the cathode of the battery 3A, and the connection point between the normally closed contact 5b2 and the anode of the battery 3B. A normally open contact 5a4 is connected between the connection point of the open contact 4a4 and the power failure lamp 2. A normally closed contact 7b1 is connected in parallel to the normally open contact 4a4, and a normally closed contact 7b2 is connected in parallel to the normally open contact 5a4.

Here, the diode 9 rectifies the power source boosted by the transformer 8, and the resistor R is connected to the batteries 3A and 3A.
It is a limiting resistor that limits the charging current of B.

Next, the operation will be described.

Now, when checking the lighting condition of the power failure lamp 2,
When a power failure lamp switch (not shown) is pressed, the contact 1a1 is closed, so P-1a1-6b-5b1-Tb1-4
-N circuit is formed, the battery connection relay 4 is energized, the battery connection relay is self-held by the circuit of P-4a1-5b1-Tb1-4-N, and the normally closed contact 4b2 is opened to cause 8B-9. The circuit of -R-4b2-3A-8B is opened, the charging circuit of the battery 3A is opened, and the normally-open contact 4a4 is closed, thereby 3A-4a4-2.
The circuit of 3A is formed, and the power failure lamp 2 is lit by the battery 3A.

Further, when the battery connection relay 4 is energized, P-
A circuit 4a2-TN is formed to activate the timer T.
In addition, a circuit of P-4a3-6S-6-6N is formed,
The keep relay 6 is energized, the normally closed contact 6b is opened, and the normally open contact 6a is closed.

Next, 60 minutes after the timer T is energized, the contact Tb1 opens, so that P-4a1-5b1.
The -Tb1-4-N circuit opens, the battery connection relay 4 deactivates, the 3A-4a4-2-3A circuit opens, and the 8B-9-R-4b2-3A-8B circuit forms. After the blackout lamp 2 is lit by the battery 3A for 60 minutes, the battery 3A is charged again.

Further, when a power failure lamp switch (not shown) is pressed, the contacts 1a1 and 1a2 are both closed, but the normally closed contact 6b is open and the normally open contact 6a is closed.
The circuit of 1a2-6a-4b1-Tb2-5-N is formed, the battery connection relay 5 is energized, and 8B-9-R-5.
While opening the circuit of b2-3B-8B, 3B-5
The circuit a4-2-3B is formed, and the power failure lamp 2 is turned on for 60 minutes by the battery 3B. Hereinafter, the description is omitted because it is the same as the case of the battery connection relay 4 described above.

Since the description of the power failure of the power supplies P and N is a known technique, the description thereof will be omitted.

In this embodiment, the case where the two batteries 3A and 3B are used has been described, but the same effect can be obtained regardless of how many batteries are used.

[0023]

According to the present invention, the discharge of the battery is performed at a predetermined cycle of the inspection interval of the power failure lamp, and when the power failure occurs, the power failure lamp is turned on by the fully charged battery. The service life can be extended and the power failure light will not go out in a short time even after a power failure right after the power failure light inspection.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a main part of an embodiment of the present invention.

[Explanation of symbols]

 1a1, 1a2 Inspection switch contact 2 Power failure lamp 3A, 3B Battery 4, 5 Battery connection relay 6 Keep relay 7 Power failure detection relay T Timer

Claims (1)

[Claims] 1. A lighting lamp and a power failure lamp are provided in a car, and a power failure detection circuit for detecting a power failure of the power source of the lighting lamp, and a battery is connected to the power failure lamp when the power failure detection circuit detects a power failure. In the blackout light device of the elevator
At least two batteries are installed, and a power failure light inspection switch that enables connection between the power failure light and the battery by manual operation, and at least two batteries for the power failure light each time the inspection switch is pressed. A power failure light device for elevators that has a power failure light inspection circuit that can switch the connection sequentially and set the connection time limit.