JP2739899B2 - Guidance sound device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction sound device which normally charges a battery with a commercial AC power supply and generates an induction sound by the induction sound generation means using the battery as a power supply in an emergency.

[0002]

2. Description of the Related Art A conventional guide sound device of this type is known, for example, of the type shown in FIG.

In the guidance sound device shown in FIG. 4, a primary winding Tr1 of a transformer Tr is connected to a commercial AC power supply E via a first power supply relay contact RyS1 and a second power supply relay contact RyS2. The full-wave rectifier circuit 1 is connected to the secondary winding Tr2 of the transformer Tr. And this full-wave rectifier circuit 1
Is a charging circuit 2 composed of a resistor R1 and a diode D1.
, The negative electrode is directly connected to the battery B.

The positive electrode of the battery B is connected to the guidance sound generating device 3 via a battery relay contact RySb.
A speaker 4 is connected to the guiding sound generating device 3, and a guiding sound generating means 5 is configured by the guiding sound generating device 3 and the speaker 4.

[0005] The first and second power supply relay contacts RyS1 and RyS2 and the battery relay contact RySb are operated by a relay coil RyL which is operated by a transfer signal or a fire alarm signal (fire alarm signal). The first and second power supply relay contacts RyS1 and RyS2 are normally-open switches, and are turned off by the stop of an emergency transfer signal or fire signal, and the battery relay contact RySb.
Is a normally-closed switch, which is turned on when the transfer signal or the fire signal is stopped.

A resistor R2 connected in parallel to the emitter and base of the transistor Q1 is connected to the resistor R1. The collector of the transistor Q1 is connected to the negative electrode of the full-wave rectifier circuit 1 via the resistor R3 and the light emitting diode LED. It is connected to the.

[0007] Normally, since the transfer signal or the fire alarm signal is supplied, the first and second power supply relay contacts RyS1 and RyS2 are closed and the battery relay contact RySb is opened. . Therefore, the voltage of the commercial AC power supply E is stepped down by the transformer Tr, full-wave rectified by the full-wave rectifier circuit 1, and the battery B is charged via the charging circuit 2. In addition, since the transistor Q1 is turned on, the output of the full-wave rectifier circuit 1 is connected to the light emitting diode via the transistor Q1.
The charge of battery B is indicated through the LED.

On the other hand, in an emergency, the transfer signal or the fire alarm signal stops, so that the first and second power supply relay contacts RyS1 and RyS2 are opened and the battery relay contact RySb is closed. Therefore, the guidance sound generating device 3 is operated using the battery B as a power source, and the guidance sound is generated from the speaker 4.

[0009]

However, in the case of the conventional example shown in FIG. 4, since a general type is used for the relay coil RyL, the exciting current of the coil is large, so that the structure of the relay coil RyL is large. A high-sensitivity relay must be used to increase the power supply capacity for the alarm signal or fire alarm signal, and there is no relay with three-pole contacts for three circuits. I have. For this reason, there are great restrictions on pattern design such as space factor and pattern routing.

Further, since two of the three contacts have a low current of 100 V AC and one contact has a low current DC of a large current, there is a problem that the selection of the relay is limited and the cost is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an induction sound device which is easy to design and has a wide range of relay selection.

[0012]

According to the present invention, a battery is charged by a commercial AC power supply in a normal state, and in a case of an emergency, an induction signal is generated by a first switch using the battery as a power supply in response to an emergency signal. An induction sound device which is driven by the battery and is electrically separated from the commercial AC power supply and the induction sound generation means after the switching of the first switching device, separately from the first switching device. A switch is provided.

[0013]

According to the present invention, in an emergency, the first switch generates an induction sound by the induction sound generation means using the battery as a power supply in response to an emergency signal, and the second switch after the first switch is switched.
Since the commercial AC power supply and the induction sound generating means are electrically separated from each other using the switch battery as a power source, the second switch is auxiliary and can be used with a small number of poles, so that the design is easy. In addition, the selection range of the relay is widened.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a guiding sound apparatus according to the present invention.

Note that the same reference numerals are given to portions corresponding to the configuration described in the conventional example shown in FIG.

In the induction sound device shown in FIG. 1, a primary winding Tr1 of a transformer Tr is connected to a commercial AC power supply E via a first power supply relay contact RyS1 and a second power supply relay contact RyS2. The full-wave rectifier circuit 1 is connected to the secondary winding Tr2 of the transformer Tr. And this full-wave rectifier circuit 1
Is a charging circuit 2 composed of a resistor R1 and a diode D1.
, The negative electrode is directly connected to the battery B.

The positive electrode of the battery B is connected to the guidance sound generating device 3 via a battery relay contact RySb.
A speaker 4 is connected to the guiding sound generating device 3, and a guiding sound generating means 5 is configured by the guiding sound generating device 3 and the speaker 4.

Further, a series circuit of a diode D2 and a second relay coil RyL2 is connected via a battery relay contact RySb, and a diode D3 is connected in parallel to the second relay coil RyL2.

The first power supply relay contact RyS1 and the battery relay contact RySb are operated by a first relay coil RyL1 which is operated by a transfer signal or a fire alarm signal (fire alarm signal). The first power supply relay contact RyS1 is a normally open switch and is turned on in a normal state when a transfer signal or a fire signal is present, and turned off in an emergency when the transfer signal or the fire signal is stopped. The contact RySb is a normally-closed switch, which is turned off when there is a transfer signal or a fire signal, and is turned on when the transfer signal or the fire signal is stopped.
, The first relay contact RyS1 and the battery relay contact RySb constitute a first relay Ry1 as a first switch.

The second power supply relay contact RyS2 is connected to a second relay coil RyL2 operating with the battery B as a power supply.
The second power supply relay contact RyS2 is a normally-closed switch, which is turned on when the output of the battery B is stopped, and turned off when the output of the battery B is stopped. And a second relay Ry as a second switch with a second power supply relay contact RyS2.
Configure 2.

A resistor R2 connected in parallel to the emitter and base of the transistor Q1 is connected to the resistor R1. The collector of the transistor Q1 is connected to the negative electrode of the full-wave rectifier circuit 1 via the resistor R3 and the light emitting diode LED. It is connected to the.

Next, the operation of the circuit shown in FIG. 1 will be described.

First, since the transfer signal or the fire alarm signal is normally supplied, the first relay coil RyL1 is energized, the first power supply relay contact RyS1 is closed, and the battery relay is closed. Open the contact RySb. Also,
Since the battery relay contact RySb is open, the second
The relay coil RyL2 is not energized, and closes the second power supply relay contact RyS2.

Therefore, the voltage of the commercial AC power supply E is stepped down by the transformer Tr, full-wave rectified by the full-wave rectifier circuit 1, and the battery B is charged via the charging circuit 2. Further, since the transistor Q1 is turned on, the output of the full-wave rectifier circuit 1 flows through the light emitting diode LED via the transistor Q1 to indicate the charging of the battery B.

On the other hand, in an emergency, since the transfer signal or the fire alarm signal stops, the first relay coil RyL1 is not energized, the first power supply relay contact RyS1 is opened, and the battery relay contact RySb is opened. Is closed. Due to the conduction of the battery relay contact RySb, the second relay coil RyL2 is energized using the battery B as a power supply,
The power supply relay contact RyS2 is also opened. Therefore, using the battery B as a power source, the guidance sound generating device 3 is operated,
An induction sound is generated from the speaker 4.

Also, first and second power supply relay contacts
Since both RyS1 and RyS2 are opened, it is possible to prevent noise from entering the induction sound generating device 3 from the commercial AC power supply E side, and generate a clear induction sound.

Next, another embodiment will be described with reference to FIG.

In the embodiment shown in FIG. 2, a photo MOS relay FM as a second switch is connected in place of the second relay Ry2 of the embodiment shown in FIG. That is, instead of the parallel circuit of the second relay coil RyL2 and the diode D3, a series circuit of the light emitting element FME and the resistor R4 of the photoMOS relay FM is connected, and the photoMOS relay is replaced with the second power supply relay contact RyS2. It is connected to FM light receiving element FMR.

In the circuit shown in FIG. 2, similarly to the circuit shown in FIG. 1, in the photo MOS relay FM, the battery relay contact RySb is closed, and the current from the battery B is supplied to the light emitting element FME. Thereafter, the light receiving element FMR is opened.

Further, another embodiment will be described with reference to FIG.

The embodiment shown in FIG. 3 is different from the embodiment shown in FIG. 1 in that the battery relay contact RySb is a first relay coil which operates in response to a transfer signal or a fire signal.
RyL1 is operated, the battery relay contact RySb is a normally-closed switch, and operates normally when there is a transfer signal or a fire alarm signal, and turns on when the transfer signal or the fire alarm signal is stopped. These first relay coil RyL1 and battery relay contact RySb constitute a first relay Ry1.

The second power supply relay contact RyS2 is connected to a second relay coil RyL2 which operates using the battery B as a power supply.
The first and second power supply relay contacts RyS1 and RyS2 are normally-closed switches, which are turned on when the output of the battery B is stopped, and turned off by the output of the battery B. The second relay coil RyL2 and the first and second power supply relay contacts RyS1 and RyS2.
Configure the relay Ry2.

Then, when the current supply to the first relay coil RyL1 is stopped, the battery relay contact RySb is closed, and the current from the battery B is supplied to the second relay coil RyL2. 2 power supply relay contact RyS
1. Launch RyS2.

In the circuit shown in FIG. 3 as well, immediately after the emergency stop signal or the fire alarm signal is stopped, the first
And the second power supply relay contacts RyS1 and RyS2 are opened, so that noise can be prevented from entering the induction sound generation device 3 from the commercial AC power supply E side, and a clear induction sound can be generated. .

[0035]

According to the guiding sound device of the present invention, in the event of an emergency, the first switching device generates the guiding sound by the guiding sound generating means using the battery as a power supply in response to the emergency signal, and after the switching of the first switching device. Since the second switch battery is used as a power source to electrically disconnect the commercial AC power supply and the induction sound generating means, the second switch is auxiliary and can be used with a small number of poles. And the range of relay selection can be widened.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing one embodiment of a guidance sound device of the present invention.

FIG. 2 is a circuit diagram showing another embodiment.

FIG. 3 is a circuit diagram showing another embodiment.

FIG. 4 is a circuit diagram showing a conventional emergency lighting device.

[Description of Signs] 5 Guide sound generating means B Battery E Commercial AC power supply FM PhotoMOS relay as a second switch Ry1 First relay as a first switch Ry2 Second as a second switch relay

Claims (1)

(57) [Claims] 1. A guidance sound device which normally charges a battery with a commercial AC power supply, and in an emergency, generates a guidance sound by a guidance sound generating means using the battery as a power supply by a first switcher in response to an emergency signal. A second switch, which is separate from the first switch and is driven by the battery and electrically disconnects the commercial AC power supply and the induction sound generating means after switching the first switch; Guidance sound device.