JPH11164471A - Automatic cable way breaker in case of earthquake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of a fire or an electric-shock accident from a household electric appliance when an earthquake occurs, by automatically actuating a breaker provided to a halfway point of a cable way with a signal from an earthquake detecting section. SOLUTION: When an earthquake occurs, a suspended weight 7 which becomes one terminal 5 of an earthquake detecting section 3 oscillates and comes into contact with the other terminal 6 of the section 3, resulting in the conduction of the earthquake detecting circuit 4 of the section 3. Then the circuit 4 outputs a break signal 10 to a breaker 2 provided to a halfway point of a cable way. When the earthquake gives horizontal shocks to the weight 7 and the weight 7 oscillates in the horizontal direction with short strokes, the terminal 6 moves and comes into contact with the weight 7 while the weight 7 tends to stay at the same place and the circuit 4 is conducted and outputs the signal 10. When the earthquake gives vertical shocks to the weight 7, on the other hand, the weight 7 which becomes one terminal 5 of the section 5 comes into contact with the other bar-like terminal 6, and the circuit 4 is conducted and outputs the signal 10, because the weight 7 horizontally oscillates more or less when the weight 7 descends during the course of its upward-downward movement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to be installed in the middle of a trunk line in a distribution board, a distribution board, a cubicle, etc. of a distribution board, a building, a factory, etc. of a general household, so that the trunk line is automatically and in an earthquake. The present invention relates to an automatic circuit breaker caused by an earthquake that shuts off instantaneously and cuts off power supply to a terminal home electric appliance.

[0002]

2. Description of the Related Art Conventionally, in the event of an earthquake, it has been desired to take measures such as turning off a switch or unplugging a power plug to prevent a fire caused by home electric appliances. Doing it on home appliances is very difficult. In addition, it is conceivable that a fire may occur from a home appliance immediately after the occurrence of an earthquake. In this case, it is difficult to prevent a fire from the home appliance. Further, there is a problem that an electric shock accident occurs if the power cord or the indoor wiring cord is damaged by the earthquake.

[0003]

A first object to be solved by the present invention is to solve these conventional problems and to automatically and instantaneously shut off a main line when an earthquake occurs. An object of the present invention is to provide an automatic circuit breaker due to an earthquake that instantaneously stops power supply to a product and effectively prevents fire and electric shock. The second problem is to make it possible to manufacture at low cost. A third problem is to double-perform earthquake detection and quickly and surely cut off an electric circuit when an earthquake occurs. The fourth problem is that it is possible to distinguish between a power failure due to the output of the cutoff signal from the earthquake sensing unit and a general power failure.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) A circuit breaker which cuts off the electric circuit by receiving a cutoff signal in the middle of the electric circuit is provided, and the circuit breaker detects the vibration of the earthquake. An automatic circuit breaker due to an earthquake, which is equipped with an earthquake sensing unit that outputs a cutoff signal to automatically cut off the electric circuit due to the shaking of the earthquake. 2) As an interrupter, an earth leakage circuit breaker installed in the middle of the electric circuit The automatic circuit breaker due to the earthquake according to the above 1), wherein the earth leakage breaker is operable by a cut-off signal output from the earthquake detection unit. 3) The suspended conductive weight is used as the earthquake detection unit. An automatic circuit breaker due to an earthquake according to the above 1) or 2), wherein an electrode is provided, and the other electrode is provided near the same weight, and a cutoff signal is output when the electrodes are in contact with each other due to the shaking of the earthquake. Body and a rod-shaped center 5) An automatic circuit breaker for an earthquake according to the above 3), which is provided with one of the electrodes 5) An earthquake sensing unit that moves due to the shaking of the earthquake is provided as an earthquake sensing unit, and a sensor that senses the movement of the earthquake sensing unit is provided. The automatic circuit breaker based on the earthquake according to the above 1) or 2), wherein the sensor detects a predetermined movement of the earthquake susceptor and outputs a cutoff signal. 6) As a sensor, a light emitter and a light receiver are provided to face each other. A seismic susceptor is hung between the light emitter and the light receiver so that the light receiving state changes at the same time, and the seismic susceptor moves due to the shaking of the earthquake and outputs a cutoff signal according to a change in the light receiving state of the light receiver. 7) The automatic circuit breaker due to the earthquake according to the above 5) 7) The earthquake sensing units each include a first earthquake sensing unit and a second earthquake sensing unit that independently output a shutoff signal, and as the first earthquake sensing unit, Conductive to hang A ring-shaped weight is used as one of the electrodes, and a rod-shaped other electrode is provided at the center of the electrode, and a cutoff signal is output when the electrodes are in contact with each other due to the shaking of the earthquake.
A light emitter and a light receiver are provided to face each other, and a seismic susceptor is suspended between the light emitter and the light receiver so that the state of light reception is changed by an earthquake, and the earthquake susceptor moves by shaking of the earthquake. An automatic circuit breaker due to an earthquake according to the above 1) or 2), wherein a sensor for outputting a cutoff signal according to a change in the light receiving state of the light receiver is provided. The automatic circuit breaker according to any one of the above 1) to 7), wherein the interruption signal from the earthquake sensing unit is also output to the earthquake occurrence display unit. In addition, the shaking of the earthquake includes a rolling and a pitching.

[0005]

According to the present invention, the present invention is installed in the middle of a main line of a distribution board, distribution board, or the like provided in a general home, a building, a factory, or the like, and receives a shut-off signal from an earthquake sensing unit that senses earthquake shaking. Automatically and instantaneously shut off the main circuit with a circuit breaker. Thus, the supply of electric power to the terminal home electric appliance can be stopped instantaneously when an earthquake occurs, thereby preventing a fire from the home electric appliance and preventing an electric shock accident due to a damage of a power cord or an indoor wiring cord. According to the second aspect of the present invention, since the earth leakage breaker provided in the middle of the electric circuit is used as the breaker, the production can be simplified. Also, the earth leakage circuit breaker used as a circuit breaker naturally cuts off the electric circuit when a leakage is detected. According to the seventh aspect of the present invention, the earthquake sensing unit includes the first earthquake sensing unit and the second earthquake sensing unit, and the shutoff signal is output independently from each of the first and second earthquake sensing units. , The circuit breaker instantaneously cuts off the main circuit. In this way, earthquake detection is performed twice, and the electric circuit is cut off instantaneously when an earthquake occurs. In the invention according to claim 8, when the cutoff signal is output from the earthquake sensing unit, the cutoff signal is input to the circuit breaker and the earthquake occurrence display unit, and the circuit breaker operates to cut off the electric circuit, and the earthquake occurrence display unit Also operates to indicate the occurrence of an earthquake. For this reason, it is possible to distinguish whether the cause of the power failure is a power failure due to the operation of the earthquake sensing unit, an excess of power consumption, or another general power failure, so that it is easy to perform a corrective action thereafter.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS It is desirable to use an earth leakage circuit breaker as the circuit breaker of the present invention, because the production can be simplified, the production cost can be reduced, and the installation place can be narrowed. If you do not use an earth leakage circuit breaker,
By installing the earth leakage breaker separately from the existing earth leakage breaker, the main circuit can be cut off in the event of earth leakage or earthquake. The seismic sensing unit has a structure in which the weight of the suspended conductor is used as one electrode, and the other electrode is provided near the weight, and outputs a cut-off signal when the weight is shaken due to the shaking of the earthquake and the electrodes are in contact with each other. And a configuration in which the motion of the earthquake susceptor is detected by a sensor and a shutoff signal is output. The shape of the weight is desirably an annular body. In this case, it is desirable that the other electrode is provided as a rod and inserted into the center of the weight. Other shapes of the weight include a sphere, a cube, and a rectangular parallelepiped. Materials for the weight include aluminum and steel. As the sensor, there is a case where the light from the light emitter is received by the light receiver and a cut-off signal is output by using a sensor composed of the light emitter and the light receiver, and a case where the cut-off signal is output by blocking the light from the light emitter. is there. Light emitted from the projector includes ordinary light and infrared light. Examples of the earthquake occurrence display unit include a separate breaker that operates in response to a cutoff signal, a lamp powered by a battery, a light bulb, a speaker that outputs sounds, songs, and melodies, and a display that displays signs mechanically. And it is various.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment will be described below with reference to the drawings. The first embodiment shown in FIGS. 1 to 3 has a structure in which a rod body serving as the other electrode is inserted into the center of the weight of the annular body serving as one electrode of the earthquake sensing unit, and when the members come into contact with each other due to the shaking of the earthquake. 5 is an example of an automatic circuit breaker that outputs a cutoff signal from a section. Example 2 shown in FIGS. 4 and 5 is an example of an automatic circuit breaker that receives an infrared ray from a light emitter that has been interrupted by shaking of a suspended earthquake susceptor with a light receiver and outputs a shutoff signal from an earthquake sensing unit. is there.
Embodiment 3 shown in FIG. 6 is an example of an automatic circuit breaker that cuts off the infrared light that has been projected from the light emitter to the light receiver due to the shaking of the earthquake susceptor and outputs a shutoff signal from the earthquake detector. In the fourth embodiment shown in FIG.
In this configuration, the seismic sensor of the second embodiment and the seismic sensor of the second embodiment are provided independently, and a cutoff signal is output independently from each of the first and second earthquake detectors. This is an example in which a circuit breaker interrupts an electric circuit upon receipt. Example 5 shown in FIG. 8 is a configuration in which the earthquake sensing unit independently includes a first earthquake sensing unit that mainly senses the roll of the earthquake and a second earthquake sensing unit that mainly senses the pitch of the earthquake. This is an example. Embodiment 6 shown in FIG. 9 is an example in which an earthquake generator is provided, and it is possible to distinguish between a power failure caused by an earthquake and a power failure due to another cause such as an excess of power consumption.

FIG. 2 is an explanatory diagram showing a use state in the first embodiment. FIG. 1 is a perspective view showing both terminals of an earthquake detecting unit of the automatic circuit breaker of the first embodiment, FIG. 3 is an explanatory view showing a state in which a trunk circuit is cut off in the first embodiment, and FIG. FIG. 5 is a perspective view showing both terminals of the earthquake detecting unit of the automatic circuit breaker, FIG. 5 is an explanatory view showing a state in which the main circuit is cut off in the second embodiment, and FIG. 6 is a state in which the main circuit is cut off in the third embodiment. FIG. 7 is an explanatory view showing a state in which the main circuit is cut off in the fourth embodiment, and FIG. 8 is an explanatory view showing a state in which the main circuit is cut off in the fifth embodiment.

Embodiment 1 (refer to FIGS. 1 to 3) FIGS. 1 to 3 In FIGS. 1 to 3, 1 is an automatic circuit breaker, 1a is a current limiter that cuts off an electric circuit due to excess current consumption, and 2 is an earth leakage breaker. 3 is an earthquake sensing unit that senses an earthquake and outputs a shut-off signal 10 to the circuit breaker 2, 4 is an earthquake sensing circuit that outputs a shut-off signal 10 constituting the earthquake sensing unit 3, 5 is a chain 8 One terminal of an earthquake sensing circuit 4 in which electricity is supplied to a weight 7 of an annular body made of aluminum suspended from the above, and 6 is an earthquake sensing circuit in which an elongated rod is inserted into the center of the weight 7 of the annular body from below. The other terminal of 4, 7 is a weight of a suspended aluminum ring of a conductor, 8 is an aluminum conductor chain of the same weight 7, and 9 is an interruption output from the earthquake sensing unit 3. The wiring 10 for transmitting the signal 10 to the circuit breaker 2 is output from the earthquake detector 3. That blocking signals, the transparent cover to guard the weight 7 11, 12 switchboard, of 13 breaker 2 2
The secondary side distribution line, 14 is a drop-in line, and 15 is a lever of the circuit breaker 2.

The automatic circuit breaker 1 according to the first embodiment shown in FIGS. 1 to 3 is installed on a switchboard 12 and a circuit breaker 2 is used as the circuit breaker 2 of the automatic circuit breaker 1, so that the circuit breaker can be used only during an earthquake. Even when there is a short circuit, the main circuit is automatically cut off and the power supply to the indoor distribution line 13 is stopped. When the consumption current has passed, the current limiter 1a cuts off the electric circuit. In the automatic circuit breaker 1 according to the first embodiment, the suspended weight 7 shakes when an earthquake occurs, and the other terminal 6 of the earthquake sensing unit 3 inserted at the center of the weight is connected to one terminal of the earthquake sensing unit 3. Weight 7 to be 5
Are in contact with each other, and are turned on to output a cutoff signal 10 from the earthquake detection circuit 4 of the earthquake detection unit 3 to the circuit breaker 2. In the case of an earthquake with a short rolling stroke, the suspended weight tends to remain in place, but the other terminal 6 moves due to the shaking of the earthquake, so that the other terminal 6 comes into contact with the weight and the earthquake sensing circuit 4
Is turned on, and a cutoff signal 10 is output. Furthermore, if the shake of the earthquake is vertical, the weight 7 which becomes one terminal 5 of the earthquake sensing part 3 is connected to the other terminal 6 in the form of a rod because the weight 7 moves up and down and moves slightly when it descends. The contact is made conductive, and the cutoff signal 10 is output. Therefore, even a small earthquake can be instantly detected. The earth leakage circuit breaker, which becomes the circuit breaker 2 receiving the cutoff signal 10, instantaneously and automatically trips, cuts off the main circuit, stops the power supply to the distribution line 13 instantly, and supplies the home electric appliance at the end of the earthquake. Prevent fire and electric shock accidents from products (not shown). To supply power to home appliances after an earthquake, use a circuit breaker 2
Can be easily restored simply by manually raising the lever 15 of the earth leakage breaker. Since the power supply of the earthquake sensing circuit 4 of the earthquake sensing unit 3 takes in the power flowing through the circuit breaker 2, after the trip of the circuit breaker 2 due to the earthquake, the supply of the power into the circuit breaker 2 is also stopped. There is no obstacle.

Embodiment 2 (see FIGS. 4 and 5) 17 in FIGS.
Earthquake sensing circuit that outputs a shutdown signal 10 when received at
Reference numeral 8 denotes a light emitter, 19 denotes a light receiver, and 20 denotes a suspended earthquake susceptor having the same structure as the suspended weight 7 of the first embodiment. In a second embodiment shown in FIGS. 4 and 5, a light projector 18 is provided on the transparent cover 11 above the suspended weight in the first embodiment, and a light receiver 19 is provided below the transparent cover 11 facing the light projector 18.
Is provided, and an earthquake susceptor 20 is interposed between the light emitter 18 and the light receiver 19 so as to block infrared rays emitted from the light emitter 18. The suspended earthquake susceptor 20 shakes due to the earthquake, and the infrared light emitted from the
At the time of reception at 9, an earthquake is sensed, a shutoff signal 10 is output from the earthquake sensing circuit 17 of the earthquake sensing unit 3, and the circuit breaker 2 is automatically and instantaneously tripped to cut off the main circuit.
Other symbols, configurations, functions and effects are the same as those in the first embodiment.

Embodiment 3 (see FIG. 6) The embodiment 3 shown in FIG.
0 is suspended between the light emitter 18 and the light receiver 19 so as not to block the infrared light emitted from the light emitter 18 to the light receiver 19, and the infrared light emitted from the light projector 18 to the light receiver 19 is The structure is such that the cutoff signal 10 is output by being cut off, and the light receiver 19 keeps receiving the infrared rays emitted from the light projector 18 in a normal time when there is no earthquake. When an earthquake occurs, the earthquake susceptor 20 shakes due to the shaking of the earthquake to cut off the infrared rays from the floodlight 18, the cutoff signal 10 is output from the earthquake sensing unit 3, and the breaker 2 instantaneously cuts off the electric circuit. Other symbols, configurations, and operational effects are the same as in the second embodiment.

Embodiment 4 (see FIG. 7) In FIG. 7, reference numeral 22 denotes a first earthquake sensing unit having the same structure as the earthquake sensing unit 3 of the first embodiment, and reference numeral 23 denotes the same structure as the earthquake sensing unit 3 of the third embodiment. Of the second earthquake sensing unit. Embodiment 4 shown in FIG.
Is such that the earthquake sensing unit 3 independently connects the first earthquake sensing unit 22 having the same structure as the earthquake sensing unit 3 of the first embodiment and the second earthquake sensing unit 23 having the same structure as the earthquake sensing unit 3 of the third embodiment. The weight 7 of the first earthquake sensor 22 is the same as that of the second earthquake sensor 2.
Also serves as 3 earthquake susceptors. When the weight 7 shakes due to the shaking of the earthquake, each of the first and second earthquake sensing units 22 and 23 senses the shaking of the weight, and outputs the cutoff signal 10 to the circuit breaker 2 independently. As a result, the main circuit is cut off instantaneously, so that even if one of the first and second earthquake sensing units is out of order, the circuit can be reliably cut off. Other codes, configurations and actions
The effect is the same as in the first and third embodiments.

Fifth Embodiment (See FIG. 8) In a fifth embodiment shown in FIG. 8, in the earthquake detector 3 in the automatic circuit breaker 1 of the fourth embodiment, the light transmitter 18 and the light receiver 19 of the second earthquake detector 23 are used. Is changed from the vertical direction to the horizontal direction, and the infrared light emitted from the light projector 18 is passed above the weight 7 and received by the light receiver 19 in normal times. or,
One other terminal 6 is additionally provided above the weight 7. If the shaking of the earthquake is pitching, if the weight 7 rises upward and intercepts the infrared rays emitted from the light projector 18 even for a moment, the second earthquake sensing unit 23 senses the movement of the weight 7 and senses the earthquake. , And independently outputs a cutoff signal 10 to the circuit breaker 2 to cut off the electric circuit. Also, the other terminal 6 provided above the weight
When the weight 7 comes into contact with the power supply and the power is turned on, a cutoff signal 10 is output to the circuit breaker 2. When the shake of the earthquake is a horizontal shake, the weight 7 swings and comes into contact with the other terminal 6 to be in an energized state, so that the cutoff signal 10 is output to the circuit breaker 2 and the electric circuit is cut off. In this way, regardless of the shaking of the earthquake, the earthquake can be sensed instantaneously and the electric circuit can be cut off instantaneously. Other reference numerals, configurations, functions and effects are the same as those of the fourth embodiment.

Embodiment 6 (see FIG. 9) 25a is a first terminal on the input side of the circuit breaker 2, 25b is a second terminal on the input side of the circuit breaker 2, and 25c is a second terminal on the input side of the circuit breaker 2. 3 terminal, 26a is a first terminal on the output side of the circuit breaker 2;
6b is a second terminal on the output side of the circuit breaker 2, 26c is a circuit breaker 2
, A third terminal 27 on the input side of the earthquake occurrence display unit 27;
Terminal, 27b is a second terminal on the input side of the earthquake occurrence display unit 27, 28a is a first terminal on the output side of the earthquake occurrence display unit 27,
28b is a second terminal on the output side of the earthquake occurrence display unit 27, 29
Is the lever of the earthquake occurrence display unit 27, and 30 is the earthquake detection circuit 1
AC / D that converts the current supplied to AC 7 from AC to DC
C converter, 31a is the first terminal of the earthquake sensing circuit 17, 31
b is a second terminal of the earthquake sensing circuit 17, and 32 is a 1 kΩ resistor.

In the sixth embodiment, as shown in FIG. 9, the power supplied to the earthquake detecting circuit 17 is the power obtained by converting the power on the output side of the circuit breaker 2 into a direct current by the AC / DC 30. The first of the first terminal 31a and the second terminal 31b of the earthquake sensing circuit 17 that is turned on by the operation of the earthquake sensing circuit 17
The terminal 31a is connected to the first terminal 25a on the input side of the circuit breaker 2 by one.
Connected via a resistor 32 of kΩ, and an earthquake occurrence display section 2
7 is connected to a first terminal 28a on the output side via a resistor 32 of 1 kΩ. Also, the second terminal 31 of the earthquake sensing circuit 17
b is connected to the second terminal 26b on the output side of the circuit breaker 2 and to the second terminal 27b on the input side of the earthquake occurrence display unit 27. Further, the first terminal 27a on the input side of the earthquake occurrence display section 27 is connected to the first terminal 26a on the output side of the circuit breaker 2. When an earthquake occurs, the earthquake sensing circuit 17 operates and the circuit breaker 2 connects the first terminal 25a via the 1 kΩ resistor 32.
The first terminal 28a and the second terminal 27b are energized through the 1 kΩ resistor 32 in the earthquake occurrence display section 27 and the 1-Ω resistor 32, respectively. As a result, a detection current flows to the earthquake detection circuit 17, and the circuit breaker 2 and the circuit breaker 10 of the earthquake occurrence display section 27 operate to cut off the electric circuit. When the circuit breaker 2 operates, the electric circuit is cut off and a power failure occurs. Since the circuit breaker 2 uses an earth leakage breaker, the circuit breaker 2 operates even when an electric leakage occurs, but the earthquake occurrence display section 27 does not operate when an electric leakage occurs. For this reason, in the event of a power failure due to the operation of the circuit breaker 2, if the earthquake occurrence display unit 27 is operating, it is easy to confirm that a power failure due to an earthquake has occurred, and if the earthquake occurrence display unit 27 is not operating, You can easily check for a power failure due to a short circuit. As a result, the cause of the power failure can be reliably confirmed, and erroneous actions such as a person erroneously resuming the power failure can be prevented in the case of the interruption of the electric circuit due to the leakage. In the case of recovering the power failure, the power failure can be recovered by raising both the lever of the circuit breaker 2 and the lever of the earthquake occurrence display unit which are in the lowered state.

[0017]

According to the present invention, the occurrence of an earthquake can be instantaneously detected by the earthquake sensing unit, and the main circuit can be instantaneously and automatically shut off by the circuit breaker. Since it can be shut off instantaneously and automatically, it is possible to easily, reliably and efficiently prevent fire and electric shock accidents from home electric appliances during an earthquake. According to the second aspect of the present invention, since the earth leakage circuit breaker is used as the circuit breaker, the installation area of the present invention can be reduced. Further, by using the earth leakage breaker, the production can be simplified, the production cost can be reduced, and the manufacturability and economy can be improved. Claims 3-6
The earthquake detector of the invention described above can instantaneously detect a small earthquake, so that it is possible to more reliably prevent fire and electric shock of home electric appliances.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a use state according to a first embodiment.

FIG. 2 is a perspective view showing both terminals of an earthquake detecting unit of the automatic circuit breaker according to the first embodiment.

FIG. 3 is an explanatory diagram illustrating a state in which a main circuit is cut off in the first embodiment.

FIG. 4 is a perspective view illustrating both terminals of an earthquake detecting unit of the automatic circuit breaker according to the second embodiment.

FIG. 5 is an explanatory diagram showing a state in which a main circuit is cut off in a second embodiment.

FIG. 6 is an explanatory diagram illustrating a state in which a main circuit is cut off in a third embodiment.

FIG. 7 is an explanatory diagram showing a state in which a main circuit is cut off in a fourth embodiment.

FIG. 8 is an explanatory diagram showing a state in which an electric circuit of a main line is cut off in a fifth embodiment.

FIG. 9 is an explanatory diagram illustrating a use state of the sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic electric circuit breaker 1a Current limiter 2 Circuit breaker 3 Earthquake sensing part 4 Earthquake sensing circuit 5 One terminal 6 The other terminal 7 Weight 8 Chain 9 Wiring 10 Shutdown signal 11 Transparent cover 12 Switchboard 13 Distribution line 14 Leading line 15 Lever 16 Missing number 17 Earthquake sensing circuit 18 Projector 19 Receiver 20 Earthquake susceptor 21 Missing number 22 First earthquake sensing unit 23 Second earthquake sensing unit 24 Missing number 25 Missing number 25a First terminal 25b Second terminal 25c Third terminal 26 Missing number 26a First terminal 26b 2nd terminal 26c 3rd terminal 27 Earthquake occurrence display part 27a 1st terminal 27b 2nd terminal 28 Missing number 28a 1st terminal 28b 2nd terminal 29 Lever 30 AC / DC converter 31 Missing number 31a 1st terminal 31b 2nd terminal 32 resistance

Claims (8)

[Claims] 1. A circuit breaker for interrupting an electric circuit in response to a cutoff signal is provided in the middle of an electric circuit, and a seismic sensor for detecting an earthquake shake and outputting a cutoff signal to the circuit breaker is provided. Automatic circuit breaker due to earthquake, characterized by automatically shutting off the power. 2. The automatic electric circuit according to claim 1, wherein an earth leakage breaker provided in the middle of the electric circuit is used as the circuit breaker, and the earth leakage circuit breaker can be operated by an interruption signal output from the earthquake detecting unit. Circuit breaker. 3. As an earthquake sensing unit, a suspended conductive weight is used as one electrode, and the other electrode is provided near the same weight.
The automatic circuit breaker according to claim 1 or 2, wherein the automatic circuit breaker outputs an interruption signal when the electrodes are in contact with each other due to the shaking of the earthquake. 4. The automatic circuit breaker according to claim 3, wherein the weight is an annular body, and the other rod-shaped electrode is provided at the center of the annular body. 5. An earthquake sensing unit, comprising: an earthquake susceptor that moves due to the shaking of an earthquake; a sensor for sensing the movement of the earthquake susceptor; and a predetermined movement of the earthquake susceptor sensed by the sensor. The automatic circuit breaker according to claim 1 or 2, which outputs a cutoff signal. 6. As a sensor, a light emitter and a light receiver are provided to face each other, and an earthquake susceptor is hung between the light emitter and the light receiver so as to change the state of light reception by an earthquake. 6. The automatic circuit breaker according to claim 5, wherein the earthquake susceptor moves and outputs a cutoff signal according to a change in a light receiving state of the light receiver. 7. A seismic sensor comprising a first seismic sensor and a second seismic sensor, each of which independently outputs a shut-off signal, wherein the first seismic sensor is a suspended annular conductive member. A weight is used as one electrode, and the other rod-shaped electrode is provided at the center of the electrode, and a shutoff signal is output when the electrodes are in contact with each other due to the shaking of the earthquake. Are provided facing each other, and a seismic susceptor is suspended between the light emitter and the light receiver so that the state of light reception changes in the event of an earthquake. 3. The automatic circuit breaker according to claim 1, wherein a sensor for outputting a cutoff signal according to a change in the state is provided. 8. The automatic electric circuit for an earthquake according to claim 1, further comprising an earthquake occurrence display section that operates in response to the shutdown signal, and wherein the shutdown signal from the earthquake detection section is also output to the earthquake occurrence display section. Circuit breaker.