JPH10334348A - Guide lamp device and guide souno device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To be operated a smoke sensor obtaining power from an auxiliary winding wire and to prevent the occurrence of a trouble in the operation of a desired electronic unit in connection to the sensing of smoke by stopping an electric discharge lamp by means of operating a circuit deviated from the main winding wire of a secondary side in an inverter transformer at the time of sensing smoke. SOLUTION: For the winding wires of the secondary side in the inverter transformer 13 of an inverter circuit 7, the auxiliary winding wire 18 and a main winding wire 17 are provided. At the time of sensing smoke, the trigger circuit of the neon tube 26 of a lighting circuit 24 connected to the main winding wire 17 of the secondary side in the inverter transformer 13 is prevented from operating and the electric discharge lamp is stopped by operating the circuit deviated from a xenon lamp 21 for putting out a guide lamp device 1. Thus, the smoke sensor 32 obtaining power from the auxiliary winding wire 18 on the secondary side in the inverter transformer 13 operates and the occurrence of the trouble is prevented for stopping the desired electronic unit 47 in connection to the sensing of smoke.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide light device and a guide sound device which operate in conjunction with a smoke detector and the like.

[0002]

2. Description of the Related Art There is a prior art in which power for a smoke detector and a guide light for visually guiding a guideway in an emergency is obtained from a secondary side of the same inverter circuit.

Further, a power supply for a smoke detector and a voice synthesizer for generating a guidance sound for guiding a guidance path in an emergency is obtained from the secondary side of the same inverter circuit, and the power supply is linked to an automatic fire alarm. When the smoke detector is set to the smoke monitoring state, and the voice synthesizer emits an induction sound, when an emergency broadcast is received from the disaster prevention center, the emergency broadcast signal is detected by a predetermined circuit, There is also a conventional technique in which a line for supplying power to the primary side of an inverter circuit is cut by a relay or the like to turn off a voice synthesizing device so that an induced sound does not overlap an emergency broadcast voice.

[0004]

However, in the former prior art, when the smoke detector detects smoke, the guide light is turned off so as not to guide the evacuee to a dangerous guideway. If the supply of power to the primary side of the inverter circuit is cut using a relay or the like, not only the discharge lamp of the induction lamp but also the entire secondary side of the inverter circuit including the smoke detector stops, and the smoke There is a problem that the device cannot be operated like the guide lamp on the floor directly above in conjunction with the sensing of the vehicle.

Accordingly, an object of the present invention is to provide a power supply for a smoke detector and an induction lamp from the secondary side of the same inverter circuit. Rather, it is also necessary to be able to start or stop driving other devices such as guide lights on the floor directly above.

In the latter prior art, when the smoke detector detects smoke and turns on when the speech synthesizer is generating a guidance sound while the smoke detector is in the smoke monitoring state, the smoke detector detects the smoke. The power supply from the secondary side of the inverter circuit to the voice synthesizer is stopped in conjunction with the sensor so that the evacuees are not guided to an evacuation road full of smoke.

In this state, when an emergency broadcast is received, a predetermined detection circuit operates and cuts off the power supply to the primary side of the inverter circuit by opening a relay or the like. The power supply to the smoke detection circuit is stopped, and the smoke detection circuit and a relay that operates in conjunction with the smoke detection circuit are reset. Therefore, when the emergency broadcast ends and the primary side of the inverter circuit is connected by a relay or the like, the voice synthesizer immediately emits a guidance sound. This is because the smoke detector is reset, so even if the power supply to the smoke detector is restarted from the secondary side of the inverter circuit, it takes about 10 to 30 seconds before the smoke detector can detect smoke. This is because the power supply to the speech synthesizer is not cut off in conjunction with the detection of smoke. Therefore, there is a problem that the guidance sound that should have been stopped once again sounds again.

[0008] Therefore, another object of the present invention is to stop the guiding sound when an emergency broadcast is received. Even when an emergency broadcast is received after the smoke detector detects smoke and stops the guiding sound, the object of the present invention is as follows. An object of the present invention is to prevent the guidance sound from being emitted again after the end of the broadcast.

[0009]

According to the first aspect of the present invention, there is provided a discharge lamp for an induction lamp;
An inverter transformer having the secondary winding as a circuit element; an inverter circuit having the inverter transformer as a circuit element; a lighting circuit for receiving power supplied from the main winding and lighting the discharge lamp; A smoke detector receiving power supply; lamp stopping means for acting on a circuit derived from the main winding on a secondary side of the inverter transformer to stop the discharge lamp; And control means for starting or stopping driving of a desired device when the smoke detector detects smoke after receiving the supply of the smoke.

Therefore, when the smoke is detected, the induction lamp is turned off, instead of cutting off the power supply to the primary circuit of the inverter transformer as in the prior art. Since the discharge lamp is stopped by acting on the circuit derived from the line, the smoke detector that receives power from the auxiliary winding on the secondary side of the inverter transformer is operating, and the smoke detection is performed. The operation of the desired electronic device can be prevented from interfering with the operation.

As a desired device, for example, there is a case where a guide light installed on the floor immediately above the floor where the guide light and smoke detector of the present invention are installed is turned off.

The invention according to claim 2 is characterized in that the lighting circuit includes a trigger circuit for lighting the discharge lamp; and lamp stopping means stops the trigger circuit. It is.

Therefore, by stopping the trigger circuit for lighting the discharge lamp to stop the discharge lamp, there is no problem in starting or stopping the operation of a desired device in conjunction with the detection of smoke. You can do so.

The trigger circuit supplies the charging energy to a neon tube, for example, by charging a capacitor from a line, and connects the gate of a thyristor to the neon tube,
The thyristor can be switched to generate a trigger pulse.

To stop this, for example, a voltage is applied to the gate of a thyristor whose anode and cathode sides are connected to a position on the inverter side from the lighting circuit between power supply lines to the discharge lamp, and a high-pressure discharge lamp is applied. For example, it is conceivable to divert the power supplied to the lighting circuit to the GND side.

The invention according to claim 3 is characterized in that the lamp stopping means: lowers the supply voltage to the discharge lamp from the discharge starting voltage.

Therefore, the discharge lamp is stopped by lowering the supply voltage to the discharge lamp from the discharge starting voltage so that there is no trouble in operating a desired device in conjunction with the detection of smoke. be able to.

As a specific means for lowering the supply voltage from the discharge starting voltage, a voltage is applied to the gate of a thyristor having an anode and a cathode connected between the power supply lines to the discharge lamp to supply the voltage to the high-pressure discharge lamp. It is conceivable to divert a part of the electric power to the GND through the thyristor.

According to a fourth aspect of the present invention, there is provided an inverter circuit; a smoke detector receiving power supply from a secondary side of the inverter circuit; and an induction sound receiving power supply from a secondary side of the inverter circuit. A switch connected to a line for supplying power to the speech synthesizer from the secondary side of the inverter circuit; and detecting that the smoke detector has sensed smoke to switch the switch. A switch opening / closing means for opening; and a reset means for detecting that an emergency broadcast has started and resetting the speech synthesizer.

Therefore, it is not necessary to disconnect the primary side of the inverter circuit even if the start of the emergency broadcast is detected as in the prior art.
The guidance sound can be stopped by resetting the voice synthesizer, and the smoke detector is not reset at the start of the emergency broadcast after smoke detection, so that no guidance sound is generated after the end of the emergency broadcast.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment of the Invention] FIG. 1 is a circuit diagram of a guide light device 1 showing a first embodiment of the present invention.

The guide light device 1 includes a power transformer 3, a full-wave rectifier circuit 4 for performing full-wave rectification of an output voltage from the secondary side of the power transformer 3, and a power supply line of a commercial AC power supply 2.
A charging circuit 6 for charging the battery 5 and an inverter circuit 7 are sequentially connected.

The charging circuit 6 includes a resistor 11, a switching transistor 12, and the like. When power is supplied from the commercial AC power supply 2 and a current flows on the secondary side of the power transformer 3, a potential difference between the terminals of the resistor 11 is generated. As a result, the switching transistor 12 is turned on to supply power from the power supply line to the charging side of the battery 5 and the monitor LED 8.

The inverter circuit 7 has a known configuration including an inverter transformer 13, switching transistors 14, 15, a choke coil 16, and the like.

The secondary winding of the inverter circuit 7 is provided with an auxiliary winding 18 in addition to the main winding 17. The main winding 17 is related to lighting of the xenon lamp 21 as an induction lamp, and a line for supplying power to the xenon lamp 21 is sequentially provided with a full-wave rectifier circuit 22, a smoothing capacitor 23, a xenon lamp 23 from the main winding 17 side. Lighting circuit 24 for lighting 21
And are connected.

The lighting circuit 24 includes a charging capacitor 2 connected between lines for supplying power to the xenon lamp 21.
5, a neon tube 26 driven by the charging power of the charging capacitor 25, a thyristor 27 triggered by the neon tube 26, a pulse transformer 28 for outputting a pulse given to the xenon lamp 21 by switching of the thyristor 27, and the like. I have.

The anode and the cathode of the thyristor 31 are connected between the lines preceding the lighting circuit 24, and the gate of the thyristor 31 is connected to a light receiving portion of a photocoupler 36 for turning on the thyristor 31. The elements are also connected.

The auxiliary winding 18 is involved in driving the smoke detector 32. A line for supplying power to the smoke detector 32 is provided with a full-wave rectifier circuit 33 and a smoothing capacitor 3 from the auxiliary winding 18 side.
4. The lamp extinguishing circuit 35 is sequentially connected.

The lamp extinguishing circuit 35 includes a xenon lamp 2
A resistor 41 connected to the line supplying power to 1;
A switching transistor 42 that is turned on by a potential difference between both terminals of the resistor 41, and a light emission of the photocoupler 36 that is connected to the emitter side of the switching transistor 42 and receives power when the switching transistor 42 is turned on. The element and a light emitting element of another photocoupler 43 are connected.

The terminals 44 and 45 are for inputting a signal voltage sent to the guide light device 1 in conjunction with a predetermined automatic fire alarm, and a relay 46 driven by the signal voltage is connected to the terminals 44 and 45. I have. This relay 46 opens and closes a power supply line between the charging circuit 6 and the inverter circuit 7.

The electronic device 47 includes a light receiving element of the photocoupler 43. When the light receiving element receives light, the terminal 4
A voltage is generated between 8, 49. Although not shown in FIG. 1, for example, a relay is connected between the terminals 48 and 49, and another guide light, for example, is installed on the floor directly above the floor where the guide light device 1 is installed. Turn off the lighting circuit of the existing guide light and turn it off.

Next, the operation of the above configuration will be described.

Normally, the charging circuit 6 charges the battery 5 with the electric power of the commercial AC power supply 2.

In an emergency, when the signal voltage is applied to the terminals 44 and 45 and the relay 46 is closed, the power of the battery 5 is supplied to the primary side of the inverter circuit 7.

Thus, electric power is generated in the line connected to the main winding 17 on the secondary side of the inverter circuit 7.
Then, the charging of the charging capacitor 25 is performed, and the neon tube 26 is driven by a charging voltage at which the charging capacitor 25 is charged to some extent.
The thyristor 27 is turned on by the neon tube 26. By repeating such an operation, the pulse transformer 28
, A pulse is applied to the xenon lamp 21 from the pulse transformer 28, and the xenon lamp 21 is turned on.

Power is also supplied to the smoke detector 32 from the line connected to the auxiliary winding 18 on the secondary side of the inverter transformer 13, but when the smoke detector 32 is in the smoke monitoring state, a small amount of power is supplied. Only the current flows through the line. However, when smoke is detected and the smoke detector 32 operates, a large current flows, a potential difference is generated between both ends of the resistor 41, and the switching transistor 42 is turned on.
43 is energized.

When the thyristor 31 is turned on by the photocoupler 36 and the anode and cathode of the thyristor 31 are short-circuited, the charging capacitor 25 is not charged and the neon tube 26 cannot trigger the thyristor 27. Therefore, the xenon lamp 21 is turned off. The electronic device 47 is stopped by the photocoupler 43. Specifically, the electronic device 47 is a guide light installed on the floor immediately above the floor on which the guide light device 1 is installed.

Therefore, when smoke is detected, the guide light device 1
Instead of turning off the power supply in the circuit on the primary side of the inverter transformer 13 to turn off the light, the neon tube of the lighting circuit 24 connected to the main winding 17 on the secondary side of the inverter transformer 13 is used. By not operating the trigger circuit such as 26, the discharge lamp is stopped by acting on the circuit derived from the xenon lamp 21. Therefore, the auxiliary winding 1 on the secondary side of the inverter transformer 13 is operated.
The smoke detector 32, which receives power from the power supply 8, is operating, so that it is possible to prevent the desired electronic device 47 from being stopped in conjunction with the detection of smoke.

[Second Embodiment of the Invention] FIG. 2 is a circuit diagram of a guidance sound device 50 according to a second embodiment of the present invention.

The guidance sound device 50 is housed in a guidance light device together with a predetermined xenon lamp unit and the like.

The guiding sound device 50 is also used for the guiding light device 1.
Similarly to the above, a power transformer 52, a full-wave rectifier circuit 53 for full-wave rectification of an output voltage from the secondary side of the power transformer 52, a charging circuit 55 for charging a battery 54, and an inverter Circuits 56 and the like are sequentially connected.

The charging circuit 55 includes a resistor 57, a switching transistor 58, and the like.
When power is supplied from the power supply 52 and a current flows on the secondary side of the power transformer 52, a potential difference is generated between the terminals of the resistor 57, whereby the switching transistor 58 is turned on, and the charging side of the battery 54 from the power line and the monitor LED And supply power.

The inverter circuit 56 is a known circuit including an inverter transformer 61, switching transistors 62 and 63, a choke coil 64, and the like.

A smoke detector 65, a voice synthesizer 66, and a relay drive circuit 67 are connected to the secondary winding of the inverter circuit 56.

The voice synthesizer 66 includes a voice IC 71 for synthesizing voice, and a clock I for providing a clock to the voice IC 71.
C72, and an amplifier 74 that amplifies the output audio signal of the audio IC 71 and outputs the amplified signal to the speaker 73.

The relay driving circuit 67 is a circuit for driving the relays 77 and 78, and includes a resistor 75, a switching transistor 76 and the like.

The terminals 81 and 82 are connected to the above-described predetermined xenon lamp unit. This xenon lamp unit includes a lighting circuit, a xenon lamp, and the like as described in the first embodiment of the present invention.

Although not shown, the terminals 83 and 84 are connected to another guide light device installed on the floor immediately above the guide light device housing the guide sound device 50.

The relay 77 turns on and off the xenon lamp unit housed in the guide light device housing the guide sound device 50, and energizes the relay 78. The relay 78 opens and closes a line for supplying power to the speech synthesizer 66, and turns off the guide light device on the immediately above floor.

Terminals 85 and 86 are used for inputting a signal voltage sent to a guide light device accommodating the guide sound device 50 in conjunction with a predetermined automatic fire alarm. The obtained signal voltage is subjected to full-wave rectification by a full-wave rectification circuit 87 to obtain a voltage for driving a relay 88. Relay 88 opens and closes a power supply line at a position between charging circuit 55 and inverter circuit 56. A relay 46 driven by this signal voltage is connected. This relay 46 opens and closes a power supply line between the charging circuit 6 and the inverter circuit 7.

When there is an emergency broadcast, the reset circuit 91 has terminals 92 and 93 to which the emergency broadcast signal is input, and
This emergency broadcast signal is full-wave rectified and transistors 95 and 9
6, a transistor 95 having a collector connected to the reset terminal 97 of the clock IC, an emitter connected to the GND side, a collector connected to the audio IC 71, and an emitter connected to the GND side. It is composed of a connected transistor 96 and the like.

Next, the operation of the guidance sound device 50 will be described.

Normally, the charging circuit 55 charges the battery 54 with the power of the commercial AC power supply 51.

In an emergency, the signal voltage is applied to the terminals 85 and 86 and the relay 88 operates to supply the electric power of the battery 54 to the primary side of the inverter circuit 56.

As a result, power is supplied to the line connected to the secondary winding of the inverter circuit 56, and the smoke detector 65 enters the smoke monitoring state. In addition, since the relay 78 is closed at the line 79, power is supplied to the voice synthesizer 66 to generate an induction sound. At this time, if an emergency broadcast flows, an emergency broadcast signal is input from the terminals 92 and 93, the switching transistors 95 and 96 are turned on, the reset terminals 97 and 98 are dropped to GND, and the clock IC
72, since the voice IC 71 is reset, the voice synthesizing device 66 stops and the guidance sound is interrupted. However, when the emergency broadcast ends, a guide sound is emitted.

Thereafter, when smoke is detected and the smoke detector 65 is operated, a potential difference is generated between both ends of the resistor 75, and the switching transistor 76 is turned on, and the relay 77 and the relay 78 are operated, and the terminals 81 and 82 are operated. The xenon lamp unit connected to is turned off, the xenon lamp of the guide light is turned off, the relay 78 of the line 79 is opened, the power supply to the speech synthesizer 66 is stopped, the guide sound is stopped, and The xenon lamp unit on the immediately upper floor connected to 83, 84 is also turned off, and the xenon lamp of the guide light is turned off so that the evacuees are not guided to the smoke-filled guideway. .

Then, after detecting the smoke, the smoke detector 6
5 starts driving, a relatively large current flows through the smoke detector 65, so that a potential difference is generated between both ends of the resistor 75, the transistor 76 is turned on, and the relay 77 and eventually the relay 78 are operated. The supply of power to the terminal 66 is stopped to stop the induction sound, and a xenon lamp unit (not shown) connected to the terminals 81 and 82 and the terminals 83 and 8
The xenon lamp unit (not shown) on the immediately upper floor, which is connected to 4, also stops lighting. When an emergency broadcast flows in this state, an emergency broadcast signal is input from the terminals 92 and 93, and the switching transistors 95 and 96 are turned on to reset the terminals 97 and 98 until the input of the emergency signal ends.
To the GND, so that the clock IC 72 and the audio IC 71
Is reset, the voice synthesizer 66 is stopped, and the guidance sound is cut off. Therefore, unlike the conventional case, the smoke detector 65 is not reset, and the relay driving circuit 67 supplies power to the relay 77.
78 is not reset. Therefore, even when the emergency broadcast ends, the voice synthesizer 66 does not sound.

[0058]

According to the first aspect of the present invention, there is provided a discharge lamp for an induction lamp; an inverter transformer having a main winding and an auxiliary winding as secondary windings; and the inverter transformer as a circuit element. An inverter circuit; a lighting circuit receiving power supplied from the main winding and lighting the discharge lamp; a smoke detector receiving power supplied from the auxiliary winding; Lamp stopping means for acting on a circuit derived from a winding to stop the discharge lamp; driving the desired appliance when power is supplied from the auxiliary winding and the smoke detector detects smoke And control means for starting or stopping the operation of the inverter transformer. Power supply Rather than turning off, the discharge lamp is stopped by acting on a circuit derived from the secondary winding of the inverter transformer, so that power is obtained from the auxiliary winding on the secondary side of the inverter transformer. The smoke detector that is operating is operating, so that it is possible to prevent trouble in operating a desired electronic device in conjunction with the detection of smoke.

According to a second aspect of the present invention, in the first aspect of the present invention, the lighting circuit includes a trigger circuit for lighting the discharge lamp; and a lamp stopping means stops the trigger circuit. Since the discharge lamp is stopped by stopping the trigger circuit for lighting the discharge lamp, the driving of a desired device is started in conjunction with the detection of smoke. No hindrance to stopping can occur.

According to a third aspect of the present invention, in the first aspect of the present invention, the lamp stopping means is characterized in that the supply voltage to the discharge lamp is made lower than the discharge starting voltage. By lowering the supply voltage to the discharge lamp below the discharge start voltage, the discharge lamp is stopped, so that it is possible to prevent troublesome operation of a desired device in conjunction with smoke detection.

According to a fourth aspect of the present invention, there is provided an inverter circuit; a smoke detector receiving power supply from a secondary side of the inverter circuit; and an induction sound receiving power supply from a secondary side of the inverter circuit. A switch connected to a line for supplying power to the speech synthesizer from the secondary side of the inverter circuit; and detecting that the smoke detector has sensed smoke to switch the switch. A switch opening / closing means; and a reset means for detecting the start of an emergency broadcast and resetting the voice synthesizing device, so that the start of the emergency broadcast is detected as in the related art. Even if the primary side of the inverter circuit does not need to be turned off, the guidance sound can be stopped by resetting the voice synthesizer, and the smoke detector starts at the start of emergency broadcast after smoke detection. Because it is not reset, never induced noise occurs after the emergency broadcast ends.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a guide light device according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram of a guidance sound device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Induction lamp device 7 Inverter circuit 13 Inverter transformer 17 Main winding 18 Auxiliary winding 21 Discharge lamp of induction lamp 24 Lighting circuit 26 Trigger circuit 27 Trigger circuit 32 Smoke detector 36 Lamp stopping means 43 Control means 47 Equipment 50 Guidance sound device 56 Inverter circuit 65 Smoke detector 66 Voice synthesizer 67 Relay drive circuit 78 Switch 91 Reset means

Claims (4)

[Claims] A discharge lamp for an induction lamp; an inverter transformer having a main winding and an auxiliary winding as secondary windings; and an inverter circuit using the inverter transformer as a circuit element; A lighting circuit for receiving power from the lighting device to light the discharge lamp; a smoke detector receiving power from the auxiliary winding; and a circuit derived from the main winding on the secondary side of the inverter transformer. Lamp stopping means for acting to stop the discharge lamp; and control means for starting or stopping driving of a desired appliance when power is supplied from the auxiliary winding and the smoke detector detects smoke. A guide light device comprising: 2. The lighting circuit according to claim 1, further comprising: a trigger circuit for lighting the discharge lamp; and a lamp stopping means for stopping the trigger circuit.
The guide light device according to claim 1. 3. The induction lamp device according to claim 1, wherein the lamp stopping means lowers a supply voltage to the discharge lamp from a discharge starting voltage. An inverter circuit; a smoke detector receiving power supply from a secondary side of the inverter circuit; a voice synthesizer receiving power supply from the secondary side of the inverter circuit and generating an induction sound; A switch connected to a line for supplying power from the secondary side of the inverter circuit to the speech synthesizer; switch opening / closing means for opening the switch when the smoke detector detects smoke; And a reset unit configured to detect that the broadcast has started and reset the voice synthesizing device.