JP3341880B2 - Earthquake electric shutoff evacuation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a circuit breaker that automatically detects and cuts off an induced voltage caused by an electric leakage, and has a seismic control device that detects a seismic motion and shuts off the circuit breaker. The present invention relates to an evacuation device for seismic electricity.

[0002]

2. Description of the Related Art Conventionally, a breaker device having a circuit breaker that detects an induced voltage caused by an electric leakage or the like and automatically cuts off the voltage is known as follows.
The configuration shown in FIG. 14 is generally used. That is, in FIG. 14, reference numerals 1 and 2 denote power supply terminals, and reference numeral 3 denotes a circuit breaker having open / close switches 3a and 3b and a trip coil 3c directly connected to the power supply terminals 1 and 2. The circuit breaker 3 detects the induced voltage caused by leakage on the load side by the detecting means 4 having the zero-phase current transformer 4a and the amplifying unit 4b for amplifying the voltage induced on the secondary side thereof. The power is cut off by operating the trip coil 3c to open the open / close switches 3a and 3b.

[0003] Reference numeral 6 denotes a test circuit provided between the load side power supply terminals of the circuit breaker 3, and is constituted by a series circuit of a normally open test switch button 6a and a resistor 6b.
When the test switch button 6a is pressed and closed, the resistance 6b
, A voltage is induced on the secondary side of the zero-phase current transformer 4a, and the induced voltage is amplified by the amplification unit 4b so that the circuit breaker 3
This is to test the operating state of. Reference numeral 7 denotes a breaker device having breakers 7a to 7n provided on the load side of the circuit breaker 3, and is used as a power supply breaker for various electric appliances at home. With such a configuration, when an induced voltage is generated on the load side due to an electric leakage or the like, the detecting means 4 operates to open the circuit breaker 3.

[0004] Also, various seismic devices, galvanometers, and the like having a function of detecting seismic motion have been proposed, and a breaker has been proposed that automatically turns off power by automatically controlling mechanical equipment when an earthquake occurs. ing.

[0005]

However, the above-mentioned conventional seismic electric shut-off and evacuation device is a dedicated one designed to be attached to mechanical equipment, and requires a circuit breaker or breaker as in a general household. It cannot be used in combination. In addition, its usability is limited, and no consideration has been given to the fact that its operation can be checked or evacuation can be taken.

The present invention has been made in view of the above-mentioned conventional problems, and can be used in combination with an existing circuit breaker or breaker as in a general home. For example, when an earthquake occurs, the earthquake can be stored and the circuit breaker can be shut off after the power is restored, and the purpose was to provide a very convenient seismic electric shut-off and evacuation device. Things.

[0007]

According to the present invention, there is provided an earthquake evacuation evacuation device provided between a power supply terminal and a detecting means for detecting an induced voltage caused by a leak or the like, a circuit breaker for shutting off a power supply when the induced voltage is detected. A seismic isolation and evacuation device comprising a seismic control device provided, wherein the seismic control device operates the detection means to activate a circuit breaker. A seismic sensor that is turned on, a relay that operates for a certain period of time when the seismic sensor is turned on, and a resistor that is connected in series between the power supply terminals or between the power supply terminal and the ground together with the normally open switch of the relay; When an earthquake of a predetermined seismic intensity or more occurs, the relay operates for a fixed time when the seismic sensor is turned on, and the normally open switch of the relay connected in series with the resistor is closed, so that the electric current flows through the resistor. Shed The breaker is actuated by the detection means detecting this, and in parallel with the normally open switch of the relay connected in series with a resistor between the power terminals or between the power terminal and the ground terminal, the power failure, the earthquake Connect an evacuation switch that is turned on in the event of an emergency when the power supply is stopped, such as when an emergency occurs, and when the power supply is restarted with this evacuation switch turned on, a current flows through the resistor, and this is detected by the detection means. The gist of the present invention is that the circuit breaker is operated by the following.

[0008] The above-mentioned seismic-electrical-interruption evacuation device includes an evacuation switch provided in parallel with a normally open switch of a relay connected in series with a resistor between power terminals or between a power terminal and a ground terminal. The opening and closing is linked to the emergency light attached to the emergency light charging outlet, and the emergency light is turned on in the event of an emergency such as a power failure earthquake,
The gist of the present invention is that the emergency light is removed, a current flows through the resistor when the power supply is restarted, and the circuit breaker is operated by detecting the current through the resistor.

In the above-mentioned seismic electric shut-off and evacuation device, the seismic control device includes a sensor circuit that detects an earthquake with a seismic sensor when a power outage or an earthquake occurs and outputs a “sensor” signal, and an output from the sensor circuit. A control circuit for storing the shaking;
A battery circuit for supplying power to the sensor circuit and the control circuit at the time of charging and power failure of a battery; an output circuit for supplying AC power to a terminal by holding an “output” signal from the control circuit that has received the “sensor” signal; An operation changeover switch circuit that switches between an “release” signal for stopping an “output” signal of the control circuit and an “actuation” signal for receiving the “output” signal of the control circuit is provided. Make a summary.

[0010] The above-mentioned seismic-electric shut-off and evacuation device is a "low battery" when the voltage of the battery falls below a specified value.
A voltage detection circuit that outputs a signal to the control circuit is provided, and a timer circuit is interposed between the control circuit and the output circuit. When a “low battery” signal is received, the control circuit receives a “sensor” signal. Does not hold the "output" signal,
Also, the timer circuit receives the "output" signal from the control circuit and outputs the "timer" signal to the output circuit for a certain period of time, and at the same time, outputs the "automatic release" signal to the control circuit. Make a summary.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention comprises detection means for detecting an induced voltage caused by earth leakage, etc., a circuit breaker for shutting off a power supply when the induced voltage is detected, and a seismic control device provided between power supply terminals. A seismic isolation and evacuation device configured to operate the detection means by the seismic control device to operate the circuit breaker, wherein the seismic control device detects the earthquake and is turned on; The relay comprises a relay which operates for a predetermined time when the relay is turned on, and a resistor which is connected in series between the power supply terminals or between the power supply terminal and the ground together with the normally open switch of the relay.

If an emergency light charging outlet connected in series with the normally closed switch of the relay is provided between the power supply terminals, the emergency light attached to the charging outlet is normally charged and the seismic control device is provided. It can be turned on when activated.

An evacuation switch that is turned on at the time of evacuation when power supply is stopped in the event of an earthquake or the like is provided in parallel with a normally open switch of a relay connected in series with a resistor between the power terminal or the power terminal and the ground terminal. If it is connected, when the power supply is restarted in the ON state of the evacuation switch, a current flows through the resistor, and the detection means detects this to activate the circuit breaker.

An evacuation switch is provided in parallel with a normally open switch of a relay connected in series with a resistor between a power supply terminal or between a power supply terminal and a ground terminal. If it is configured to be linked to the removal and mounting of the emergency light attached to the emergency power supply, by removing the emergency light during an emergency such as an earthquake, the current will flow through the resistor when the power supply is resumed, Is detected by the detecting means, the circuit breaker can be operated.

With the above structure, when an earthquake of a predetermined seismic intensity or higher occurs, the relay operates for a certain period of time by turning on the seismic sensor, and the normally open switch of the relay connected in series with the resistor is closed. As a result, a current flows through the resistor, and the detection means detects the current, whereby the circuit breaker can be operated.

[0016] Further, the seismic control device includes a sensor circuit for detecting an earthquake with a seismic sensor and outputting a "sensor" signal, a control circuit for storing shaking by an output from the sensor circuit, and a control circuit for charging a battery. A battery circuit that supplies power to the sensor circuit and the control circuit at the time of a power failure, an output circuit that supplies AC power to a terminal by holding an “output” signal from the control circuit that has received the “sensor” signal, If a configuration is provided which includes an "release" signal for stopping the "output" signal and an "operation" switch circuit for switching an "operation" signal for receiving the "output" signal of the output circuit, the battery can be used in the event of a power failure. The output circuit operates and the circuit breaker can be operated if the control circuit stores the shaking caused by an earthquake or the like and the control circuit stores the shaking at the time of restoration from a power failure. Kill.

A timer circuit is interposed between the control circuit and the output circuit of the seismic control device, and receives a "output" signal from the control circuit and outputs a "timer" signal to the output circuit for a fixed time. At the same time, by outputting an "automatic release" signal to the control circuit, it is possible to easily turn on (turn on) the circuit breaker without having to perform a switch operation after the output is output in the event of an earthquake.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will now be described in detail with reference to FIGS. FIG.
2 is a circuit diagram showing the first embodiment, and the first embodiment will be described below with reference to FIG.

Reference numerals 1 and 2 denote power terminals. Reference numeral 3 denotes a circuit breaker having open / close switches 3a and 3b and a trip coil 3c directly connected to the power terminals 1 and 2. This breaker 3
Activates the trip coil 3c when the detecting means 4 having the zero-phase current transformer 4a and the amplifying unit 4b for amplifying the voltage induced on the secondary side of the transformer detects an induced voltage caused by earth leakage on the load side. The power is shut off by opening the open / close switches 3a and 3b. 6 is a test circuit provided between the load side power supply terminals of the circuit breaker 3;
It is configured by a series circuit of a normally open test switch button 6a and a resistor 6b, and a test of the operating state of the circuit breaker 3 is performed by amplifying the induced voltage by pressing and closing the test switch button 6a. Reference numeral 7 denotes a breaker device having breakers 7a to 7n provided on the load side of the circuit breaker 3, and is used as a power supply breaker for various electric appliances at home. A seismic control device 8 is installed via one of the breakers 7a, an induced voltage is generated on the load side by the seismic control device 8, and the detecting means 4 is operated to operate the circuit breaker 3. Make up.

The seismic control device 8 has terminals 8a to 8c, and detects an earthquake to turn on the seismic sensor 9;
, For example, a self-holding relay 10
A timer 11 provided to operate the relay 10 for a predetermined time; and a normally closed switch 10c of the relay 10.
, An emergency light charging outlet 12 connected in series between power supply terminals, a resistor 13 connected in series between power supply terminals together with the normally open switch 10d of the relay 10, and a relay connected in series with the resistor 13 between power supply terminals. The evacuation switch 14 is connected in parallel with the ten normally open switches 10d. The relay 10 includes a relay coil 10 connected in series between the seismic sensor 9 and the timer switch 11a and the power supply terminal.
a, a self-holding normally open switch 10b connected in parallel to the seismic sensor 9, and the above-described normally closed switch 10c and normally open switch 10d. The terminal 8a is connected to the breaker 7
aa, to the power supply terminal 1 via the open / close switch 3a, the terminal 8
b is connected to the power supply terminal 2 via the breaker 7ab and the open / close switch 3b, and the terminal 8c is directly connected to the power supply terminal 2.

Here, the operation of the seismic control device 8 will be described. First, in FIG. 1, the circuit breaker 3 and the breaker 7
a is in a closed state. And in normal times,
As shown in the figure, the timer coil 11a is not activated because the timer switch 11a is closed but the seismic sensor 9 is off, and the normally open switch 10b remains open.
1 does not work. In normal times, the normally closed switch 10c
Therefore, the emergency light charging outlet 12 is energized, so that an emergency light (not shown) can be inserted into the charging outlet 12 to perform charging. On the other hand, the power supply terminals 1 and 1 are connected via the resistor 13 by the normally open switch 10d.
No current flows between the two.

When an earthquake of a predetermined seismic intensity or higher occurs, the seismic sensor 9 is turned on and the relay coil 1 of the relay 10 is turned on.
0a is energized, and the switches 10b to 10d of the relay 10 are inverted to be in a state as shown in FIG. That is, by energizing the relay coil 10a via the normally open switch 10b, even if the seismic sensor 9 is turned on for a short time, the relay 1
When the timer 11 starts operating and the timer switch 11a is opened after a lapse of a predetermined time, the timer 11 is held until the power supply to the relay coil 10a is cut off. During the self-holding state of the relay 10, through the normally open switch 10d which is in the closed state,
The current flows when the resistor 13 is substantially connected between the power supply terminals 1 and 2, and the circuit breaker 3 can be opened by the detection means 4 detecting this. When the normally closed switch 10c of the relay 10 is opened, the power supply to the emergency light charging outlet 12 is cut off,
The emergency light changes from the charging state to the emergency light lighting state, and this state is continued even after the timer time of the timer 11 has elapsed by opening the circuit breaker 3.

Therefore, when an earthquake occurs, the breaker 3 can be automatically opened by the seismic control device 8, and the emergency light is switched from the charged state to the lit state. You can evacuate. In addition, when evacuation is performed in the event of such an earthquake, the evacuation switch 14 is turned on, so that when re-energization occurs after evacuation, a current flows from the evacuation switch 14 via the resistor 13 and this is detected by the detection means 4. , The circuit breaker 3 can be opened. This is because the power is re-energized during the evacuation with the circuit breaker 3 closed due to a power failure such as when the power supply to the power company (primary side) is stopped before the circuit breaker 3 is shut off by the seismic control device 8. The purpose of this is to prevent an accident such as a ground leakage accident in the event of a failure.

Next, a second embodiment will be described with reference to FIG. In this embodiment, a terminal 8d connected to the ground 15 instead of the terminal 8c of the seismic control device 8, and a normally open switch 10d of the relay 10 is connected in series between the terminal 8d and the terminal 8a. Resistor 16 and normally open switch 1
It has an evacuation switch 17 connected in parallel with 0d.

In the second embodiment, the operation of the relay 10 at the time of the occurrence of an earthquake is the same as that of the first embodiment. When the normally open switch 10d is closed, the breaker 3 is switched from the power supply terminal 1 to the power supply terminal 1. , Detecting means 4, a ground fault current flows from the breaker 7aa via the terminal 8a through the normally open switch 10d, the resistor 16, and the terminal 8d, and the detecting means 4 detects an induced voltage generated due to the ground fault current. Thereby, the circuit breaker 3 can be opened. Also, when the power supply is re-energized after the evacuation switch 17 is turned on and evacuation is performed, a ground fault current flows in the same manner even if the normally open switch 10d is in an open state. , The circuit breaker 3 can be opened.

Next, a third embodiment will be described. This configuration is such that the evacuation switch 14 or 17 is opened and closed in conjunction with the attachment / detachment of the emergency light to / from the emergency light charging outlet 12 in the first and second embodiments. That is, by removing the emergency light in an emergency such as when an earthquake occurs, a current flows through the resistor 13 or 16 when the power supply is restarted, and the detecting means 4 detects this to open the circuit breaker 3. Can be done.

Next, fourth and fifth embodiments will be described. The fourth embodiment (FIG. 7) is different from the box 19 (the seismic control device 8) or the emergency light charging outlet 12 of the box 19 is separated, and the emergency light charging outlet 23 is provided in another place. And a circuit diagram in the case of providing an evacuation switch 24 connected in parallel with this, and the fifth embodiment (FIG. 8) particularly shows the one using the ground 25 among them.

In the fourth and fifth embodiments, during normal times,
Since the emergency light charging outlet 23 is energized through the closed circuit breaker 7c, the emergency light is inserted into the charging outlet 23 to be charged. When an earthquake occurs, the operation of the relay 10 is the same as that of the first embodiment described above. When the normally open switch 10d is closed, in the fourth embodiment, the coil 26 of the operation relay 26 is turned on.
The switch 26b is closed by the current flowing through the resistor a, and the detecting means 4 detects that the current has flowed through the resistor 27, thereby opening the circuit breaker 3. In the fifth embodiment, the power supply terminal 1
Circuit breaker 3, detecting means 4, breaker 7aa to terminal 8
a, normally open switch 10d, resistor 16, terminal 8d
A ground fault current flows through the circuit, and the detecting means 4 detects an induced voltage generated due to the ground fault current, so that the circuit breaker 3 is opened. When the circuit breaker 3 is opened, the power supply to the emergency light charging outlet 23 is interrupted, and the emergency light changes from the charged state to the emergency light lighting state. Evacuation switch 2
In the fourth embodiment, a current flows from the evacuation switch 24 via the resistor 27 even when the power supply is re-energized after the evacuation with the switch 4 turned on, and the detection means 4 detects this. Thereby, the circuit breaker 3 can be opened.
In the fifth embodiment, the normally open switch 10
Even when d is in the open state, a ground fault current flows through the resistor 28 and the evacuation switch 24 connected in series with the evacuation switch 24, and the circuit breaker 3 can be opened by the detection means 4 detecting this. .

With such a circuit, as described below, apart from the box 19 (the seismic control device 8) mounted near the breaker, the emergency light is placed in a low position where the child and the old man can reach. For example, it can be installed near the foot of a corridor or entrance, which is convenient.

Next, an embodiment of the seismic control device 8 different from the first to fifth embodiments will be described with reference to the block diagram of FIG. 9 and the circuit diagram of FIG. In this embodiment, reference numeral 30 denotes a sensor circuit including a seismic sensor 30a similar to those of the first to fifth embodiments. When a vibration such as an earthquake is detected by the seismic sensor 30a, a "sensor" signal is output. Output to the control circuit 31. Reference numeral 32 denotes a battery circuit, which controls the control circuit 31 and the sensor circuit 30 when charging and power failure of the battery 32a.
To supply power from the battery 32a. Then, the control circuit 31 processes a signal from the sensor circuit 30 or an operation changeover switch circuit 33 that outputs a signal for switching operation release (stop) and operation, and outputs the signal from the output circuit 3.
4 and a signal to the indicator circuit 35. At this time,
In order to operate the circuit breaker 3, the output circuit 34 outputs a predetermined time or more by a holding circuit.

The output circuit 34 limits the current of the AC power supply having the same phase as that of the terminal 8a in response to a signal from the control circuit 31, and outputs the current to the terminal 8c. Further, the indicator circuit 35 turns on the indicator lamp 35a according to signals from the control circuit 31 and the operation changeover switch circuit 33. In FIG. 10, reference numeral 36 denotes a battery switch circuit for stopping charging of the battery 32a and stopping or starting the supply of power from the battery 32a. Reference numeral 37 denotes a DC power supply from an AC power supply, and DC power is supplied to each of the circuits 30 to 35 described above. A power supply circuit for supplying power.

That is, in the embodiment shown in FIGS. 9 and 10, the emergency light charging outlets 12 and 23 and the evacuation switches 14 and 17 as in the seismic control device 8 of the first to fifth embodiments described above. , 24, but has a battery circuit 32, and the control circuit 31 stores (self-holds) a shaking caused by an earthquake or the like at the time of a power failure detected by the seismic sensor 30a of the sensor circuit 30. Then, when the swing is stored in the control circuit 31 at the time of recovery from the power failure, the output circuit 34 operates according to the signal from the control circuit 31 and the circuit breaker 3
Activate Further, in this embodiment, the indicator lamp 35a is turned on if the terminal has the indicator lamp 35a, the terminals 8a to 8c are correctly wired, and the switches are in the normal use position and the switch is energized.
You can see that it is working properly. Further, in the first to fifth embodiments, in order to operate the circuit breaker 3, the relay self-holds during the setting of the timer 11 after the seismic sensor 9 detects the shaking. In the embodiment shown in FIG. 10, since the self-holding circuit 31a constituting the control circuit 31 holds the relay 34a, the operation changeover switch 33
The relay 34a is held until a is released. In order to cancel the operation of the circuit breaker 3 or to prevent the operation due to vibration such as construction, the operation changeover switch 33a may be set to the cancel side.

In the embodiment shown in FIGS. 9 and 10, when the operation switch 33a is set to the release side during energization, a "release" signal is output to the control circuit 31. Then, the control circuit 31 outputs “output” to the output circuit 34.
An "in operation" signal to the signal and indicator circuit 35 is output to stop. As a result, the output circuit 34 is connected to the terminal 8
c. The supply of AC power to the
5a goes out.

From this state, the operation changeover switch 33a
Is changed from the release side to the operation side, the "release" signal sent from the operation changeover switch circuit 33 to the control circuit 31 stops, and the control circuit 31 outputs an "in operation" signal to the indicator circuit 35. The circuits 31, 34, and 35 are brought into the following states by the stop of the "cancel" signal and the "operating" signal caused by the stop of the "cancel" signal, and are ready for an earthquake.

When the “release” signal is no longer input from the operation changeover switch circuit 33, the control circuit 31 outputs an “output” signal to the output circuit 34 when the “sensor” signal is input from the sensor circuit 30, and , To hold the “output” signal. Further, it outputs an “operating” signal to the indicator circuit 35.

The output circuit 34 receives an “output” signal from the control circuit 31 when an “operation” signal is input from the operation changeover switch circuit 33. The indicator circuit 35 receives an “operation” signal from the operation changeover switch circuit 33 and an “in operation” signal from the control circuit 31, and turns on the indicator lamp 35a.

When the seismic sensor 30a detects vibration such as an earthquake in such a state, the sensor circuit 30 outputs a "sensor" signal to the control circuit 31. When receiving the “sensor” signal, the control circuit 31 outputs an “output” signal to the output circuit 34. At this time, if the "release" signal is not input from the operation changeover switch circuit 33 to the control circuit 31, the control circuit 31 holds the "output" signal. This is because an output for a certain period of time or more is required to bring the circuit breaker 3 into the cutoff state. Further, the control circuit 31 includes the indicator circuit 3
The "in operation" signal output to 5 is stopped.

While the "output" signal from the control circuit 31 is being input, the output circuit 34 supplies an output obtained by current-limiting the AC power applied to the terminal 8a to the terminal 8c. However,
When the “operation” signal is not input from the operation changeover switch circuit 33, the “output” signal from the control circuit 31 is not accepted, and no AC power is supplied to the terminal 8c.

Due to a power failure, AC is applied between terminals 8a and 8b.
When the power is lost, when the switch 36a of the battery switch circuit 36 is on, the backup power is supplied from the battery circuit 32 to the sensor circuit 30 and the control circuit 31.
To operate both circuits 30, 31. And
In this state, when vibration is applied by an earthquake or the like, the seismic sensor 30a
Detects the vibration and outputs a “sensor” signal from the sensor circuit 30 to the control circuit 31, and the control circuit 31 holds the “output” signal to the output circuit 34. However, when the operation changeover switch 33a is on the release side, the "output" signal is not held. In this state, the output circuit 34
Since the DC and AC power are not supplied to the power supply, the output for operating the circuit breaker 3 is not supplied to the terminal 8c. However, when AC power is applied to the terminals 8a and 8b in this state, the AC power for operating the circuit breaker 3 is changed to the terminal 8c. 8c.

An embodiment different from the seismic control device shown in FIGS. 9 and 10 will be described with reference to the block diagram of FIG. 11 and the circuit diagram of FIG. The embodiment of FIGS. 11 and 12 has the features of the embodiment of FIGS. 9 and 10 described above. In addition, the embodiment of FIG. Therefore, the breaker can be easily turned on again after the output is generated by the earthquake without operating the operation changeover switch.

That is, in the embodiment of FIGS. 11 and 12, the operation changeover switch circuit 33 and the battery circuit 32 are wired, and when the operation is canceled, the charging of the battery 32a and the supply of the battery power are stopped and the operation is stopped. The time is output to start these. Further, a voltage detection circuit 39 is provided, and when the power supply voltage supplied from the battery 32a falls below a specified value, a "low battery" signal is output to the control circuit 31.

A timer circuit 40 is interposed between the control circuit 31 and the output circuit 34, and when a "output" signal from the control circuit 31 is received, a "timer" signal is output to the output circuit 34 for a fixed time. At the same time, an "automatic release" signal is also output to the control circuit 31 for a fixed time.

In the embodiment shown in FIGS. 11 and 12, when the operation changeover switch 33a is set to the release side during energization, a "release" signal is output to the control circuit 31, and the control circuit 31 And an "active" signal to the indicator circuit 35 is output to stop. As a result, the timer circuit 40 and the output circuit 34 stop receiving the input, and the output stops. Therefore, the output circuit 34 stops supplying AC power to the terminal 8c, and the indicator lamp 35a is turned off, as in the embodiments shown in FIGS.
However, in the embodiment shown in FIG. 11 and FIG.
The charging of the battery 32a and the supply of battery power to the sensor circuit 30, the control circuit 31, and the voltage detection circuit 39 are stopped.

From this state, the operation changeover switch 33a
Is changed from the release side to the operation side, the "release" signal sent from the operation changeover switch circuit 33 to the control circuit 31 stops, and the control circuit 31 outputs an "in operation" signal to the indicator circuit 35. At this time, in the embodiment shown in FIGS. 11 and 12, when the “low battery” signal is output from the voltage detection circuit 39 to the control circuit 31, the “sensor” signal is input from the sensor circuit 30. ,
The control circuit 31 no longer holds the "output" signal. If the operation changeover switch 33a is on the operating side in a state where the "low battery" signal is not output, each of the circuits 31, 3
4 and 35 are in the same state as the embodiment shown in FIGS. 9 and 10, and are in a state of waiting for an earthquake.

When the “release” signal is no longer input from the operation changeover switch circuit 33, the control circuit 31 outputs an “output” signal to the timer circuit 40 when the “sensor” signal is input from the sensor circuit 30, and , To hold the “output” signal. Further, it outputs an “operating” signal to the indicator circuit 35.

The timer circuit 40 receives an “output” signal from the control circuit 31 when an “operation” signal is input from the operation changeover switch circuit 33. The indicator circuit 35 operates when the “operation” signal from the operation changeover switch circuit 33 and the “operation” signal from the control circuit 31 are input.
5a is turned on.

When the seismic sensor 30a detects a vibration such as an earthquake in such a state, the sensor circuit 30 outputs a "sensor" signal to the control circuit 31. When receiving the “sensor” signal, the control circuit 31 outputs “output” to the timer circuit 40.
Give a signal. Further, the control circuit 31 includes the indicator circuit 3
The "in operation" signal output to 5 is stopped.

When the timer circuit 40 receives the "output" signal from the control circuit 31, it outputs a "timer" signal to the output circuit 34 for a certain period of time and simultaneously outputs a "automatic release" signal to the control circuit 31 for a certain period of time. I do. Then, while the control circuit 31 receives the “automatic release” signal,
No longer keeps the "output" signal.

While the "timer" signal is being input from the timer circuit 40, the output circuit 34 supplies an output obtained by current-limiting the AC power applied to the terminal 8a to the terminal 8c. However, from the operation changeover switch circuit 33, "operation"
When no signal is input, the "timer" signal from the timer circuit 40 is not accepted, and the AC signal is input to the terminal 8c.
There is no power supply.

Due to a power failure, AC is applied between terminals 8a and 8b.
When the power supply is depleted, when the operation changeover switch 33a of the operation changeover switch circuit 33 is on the operating side, the backup power is supplied from the battery circuit 32 to the sensor circuit 30.
Are supplied to the control circuit 31 and the voltage detection circuit 39 to operate these circuits 30, 31, and 39. Then, when vibration is applied due to an earthquake or the like in this state, the seismic sensor 30a detects the vibration, and outputs a “sensor” signal from the sensor circuit 30 to the control circuit 31, and the control circuit 31 outputs the “output” signal to the timer circuit 40. Hold the signal. However, when the operation changeover switch 33a is on the release side, no backup power is supplied to the sensor circuit 30 and the control circuit 31, so that the sensor circuit 30 and the control circuit 31 do not operate. In this state, no DC or AC power is supplied to the timer circuit 40 and the output circuit 34, so that an output for operating the circuit breaker 3 is not supplied to the terminal 8c, but in this state, if AC power is applied to the terminals 8a and 8b. , The timer circuit 40 and the output circuit 34
When power is supplied, both circuits 40 and 34 operate, and the circuit breaker 3
Is supplied to the terminal 8c.

In the embodiment shown in FIGS. 11 and 12,
If the breaker does not operate or the wiring method is used, the AC voltage is not output even if the breaker does not operate or the power supply is always on due to the wiring method. Danger such as electric shock can be prevented, and it is safer.

The above-described seismic control device 8 of the embodiment shown in FIGS. 9 and 10 and FIGS. 11 and 12 has an earth leakage breaker 41 having a circuit breaker 3, a detecting means 4 and a test circuit 6, as shown in FIG. Wiring and use.

In the above description, the contents centered on the circuit diagram have been described.
6, and is used in a combination of the circuit breaker 3 and the breaker device 7 in an ordinary household. In the figure, reference numeral 20 denotes an emergency light which is attached to and detached from the above-described emergency light charging outlet 12, and is detachable from the box 19. Reference numeral 21 denotes a push button of the evacuation switch 14, 17, or 24.
May be a switching operation knob. The above-described seismic sensor 9, relay 10, and timer 11 are appropriately arranged in a box 19 as shown in FIG.

As a specific example of the structure of the third embodiment, as shown in FIG.
Plug 2 inserted into charging socket 12 for emergency light
0a and the projection 20b. The projection 20b is used to open and close the switch 22 corresponding to the evacuation switches 14 and 17 described above,
This is performed in conjunction with the attachment / detachment of the device 2. Here, the switch 22 includes a movable contact 22a and a fixed contact 22b, and the movable contact 22a has an operating shaft 22c with which the protrusion 20b contacts, and the movable contact 22a is a spring 22d.
Is normally biased in the closing direction. When the emergency light 20 is mounted, the projection 20b is moved to the operation shaft 22.
c, the switch 22 is opened, the switch 22 is kept open until the emergency light 20 is removed, and the emergency light 20 is charged as described above.

In the description of FIG. 1 to FIG.
Has shown what was comprised in the seismic control device 8, but the composition position is not specifically limited, As shown in FIG. 7, FIG. Make up,
For example, it may be installed near where the circuit breaker 3 is provided, and in that case, a fuse may be provided in series. In addition, if the above-described box 19 (that is, the seismic control device 8) is installed together with an emergency bag or the like at a low position where children and the elderly can reach, not at the position where the circuit breaker 3 and the breaker device 7 are installed, It can be easily dealt with at the time of occurrence. Also, the emergency light may be separated from the box 19 and provided at a lower position.

In the first to fifth embodiments, the timer 11
However, the timer 11 is not limited as long as the relay 10 is operated for a certain period of time.

[0057]

As described above, according to the present invention, when an earthquake of a predetermined seismic intensity or more occurs, the relay operates for a fixed time by turning on the seismic sensor, and the relay connected in series to the resistor. When the normally open switch is closed, a current flows through the resistor, and the detecting means detects the induced voltage generated by the switch, so that the circuit breaker can be operated, and the breaker can be operated as in a general household. It can be used easily in combination with a vessel or breaker.

In addition, the emergency light attached to the emergency light charging outlet can be charged at the normal time and turned on when the seismic control device is activated, so that the preparation for the use of the emergency light and its use in the event of an earthquake can be quickly performed. You can do it. In addition, when the power supply is restarted with the evacuation switch turned on at the time of evacuation and the power supply is restarted, a current flows through the resistor, and the detection means detects this, so that the circuit breaker can be activated, and the evacuation can be performed after the evacuation. It is possible to prevent a fire or the like from occurring due to a short circuit when electricity is applied.

Also, by removing the emergency light in the event of an earthquake or the like, the evacuation switch can be turned on, so that when the power supply is resumed after evacuation, the electric current is passed through the resistor. When the detecting means detects this, the circuit breaker can be reliably operated, so that forgetting to turn on the evacuation switch can be prevented in advance.

Also, the seismic control device is provided with a battery,
If the battery operates during a power outage, the holding time of the relay can be extended. Also, a timer circuit is provided between the control circuit and the output circuit, and at the same time as receiving a signal from the control circuit and outputting a signal to the output circuit for a certain time,
By outputting the automatic release signal also to the control circuit, it is possible to easily turn on (turn on) the circuit breaker without outputting a switch after an output is generated in the event of an earthquake. As described above, the present invention can provide a seismic-electricity-interruption evacuation device that can be used for an existing earth leakage breaker and that is very convenient to use.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a first embodiment of a seismic electricity interrupting and evacuating apparatus according to the present invention.

FIG. 2 is a main part circuit diagram of an operation state of the first embodiment.

FIG. 3 is a circuit diagram showing a second embodiment of the seismic electricity interrupting and evacuating apparatus of the present invention.

FIG. 4 is a perspective view showing an external appearance of a box of the seismic control device of the seismic electric shut-off and evacuation device of the present invention.

FIG. 5 is a perspective view showing the inside of the box in a see-through manner.

FIG. 6 is a side view showing the mounting and dismounting of the indicator light in the third embodiment of the seismic electricity interrupting and evacuating apparatus of the present invention.

FIG. 7 is a circuit diagram showing a fourth embodiment of the seismic electricity interrupting and evacuating apparatus of the present invention.

FIG. 8 is a circuit diagram showing a fifth embodiment of the seismic electricity interrupting and evacuating apparatus of the present invention.

FIG. 9 is a block diagram showing an embodiment of a seismic control device different from the seismic control devices in the first to fifth embodiments.

FIG. 10 is a circuit diagram of FIG. 9;

FIG. 11 is a block diagram showing an embodiment of a seismic control device different from that of FIG. 9;

FIG. 12 is a circuit diagram of FIG. 11;

13 is an explanatory view of wiring the seismic control devices of FIGS. 9 and 10 and FIGS. 11 and 12 to an earth leakage breaker, where (a) is a single-phase two-wire system and (b) is a single-phase three-wire system. Show the case.

FIG. 14 is a circuit diagram showing a conventional example of a breaker device.

[Explanation of symbols]

 1, power supply terminal 3 circuit breaker 4 detection means 7 breaker device 8 seismic control device 8c terminal 9, 30a seismic device 10 relay 10d normally open switch 12, 23 emergency light charging socket 13, 16, 27, 28, 29 Resistance 14, 17, 24 Evacuation switch 15, 25 Ground 20 Emergency light 30 Sensor circuit 31 Control circuit 32 Battery circuit 32a Battery 33 Operation switch circuit 34 Output circuit 35 Indicator circuit 36 Battery switch circuit 37 Power supply circuit 39 Voltage detection circuit 40 Timer circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01H 83/20 H02H 5/00

Claims (4)

(57) [Claims] A detecting means for detecting an induced voltage caused by an electric leakage, a circuit breaker for shutting off a power supply when the induced voltage is detected, and a seismic control device provided between power supply terminals. A seismic electric shut-off and evacuation device configured to operate the detection means to operate a circuit breaker, wherein the seismic control device detects an earthquake and turns on the seismic device. It has a relay that operates for a certain period of time, and a resistor connected in series between the power supply terminals or between the power supply terminal and the ground together with the normally open switch of the relay. The relay operates for a certain period of time when the shaker is turned on, and when the normally open switch of the relay connected in series to the resistor is closed, a current flows through the resistor. Actuated In parallel with the normally open switch of a relay connected in series with a resistor between the power supply terminal or between the power supply terminal and the ground terminal, it is turned on in the event of an emergency such as a power outage or an earthquake, etc. An evacuation switch is connected, and when power supply is restarted in the on-state of the evacuation switch, a current flows through the resistor, and the detection means detects the current to activate the circuit breaker. And seismic electricity shut-off evacuation device. 2. An evacuation switch provided in parallel with a normally open switch of a relay connected in series with a resistor between a power supply terminal or between a power supply terminal and a ground terminal according to claim 1. It is configured to be linked to the attachment and detachment of the emergency light attached to the light charging outlet, and the emergency light is turned on in the event of an emergency such as a power outage earthquake, and by removing the emergency light, the resistance is restored when the power supply is resumed. 2. The evacuation device according to claim 1, wherein the circuit breaker is actuated by passing a current through the device and detecting the current by the detecting means. 3. A seismic control device comprising: a sensor circuit for detecting an earthquake by a seismic sensor when a power outage or an earthquake occurs, and outputting a “sensor” signal; and a control circuit for storing shaking by an output from the sensor circuit. A battery circuit that supplies power to the sensor circuit and the control circuit at the time of charging and power failure of a battery, an output circuit that supplies AC power to a terminal by holding an “output” signal from a control circuit that has received a “sensor” signal, "Release" to stop the "output" signal of the control circuit
2. The apparatus according to claim 1, further comprising an operation changeover switch circuit for switching an "operation" signal for receiving a signal and an "output" signal of the control circuit.
The described seismic electric shutoff evacuation device. 4. A voltage detecting circuit for outputting a "low battery" signal to a control circuit when the voltage of the battery falls below a prescribed value, and a timer circuit is interposed between the control circuit and the output circuit. When the "low battery" signal is received, the control circuit does not hold the "output" signal even if it receives the "sensor" signal, and the timer circuit receives the "output" signal from the control circuit and sends the "output" signal to the output circuit. 4. The evacuation device for seismic electricity interruption according to claim 3, wherein an "automatic release" signal is output to the control circuit simultaneously with outputting the "timer" signal for a predetermined time.