JP2013061259A - Simple seismometer and home electric leakage generator using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for actuating a remotely installed ground-fault circuit breaker by using a small simple seismometer which is sensitive to oscillation, manufactured at a low cost, and can be installed in a general home.SOLUTION: The simple seismometer is formed by sealing a certain amount of a liquid in a sealable container, arranging both electrodes of both poles in the container, and bringing one electrode in contact with the liquid and the other electrode not in contact with the liquid. When the container oscillates, the liquid generates wave and come in contact with the electrode to detect the oscillation, and the simple seismometer notifies information of an earthquake. The simple seismometer and a leakage current generator are connected, and when the oscillation of a strong earthquake is detected, a virtual leakage current is generated, and the ground-fault circuit breaker in a distribution panel is actuated to shut off the power source.

Description

  In the present invention, a liquid such as water is enclosed in a container, and an electrode for detecting the liquid is provided. The present invention relates to the operation of an earth leakage breaker by a simple seismometer that detects the magnitude of an earthquake by detecting the wave shape of a liquid by shaking the container.

  Conventionally, the basic principle of operation of a seismometer is that a weight provided in the seismometer is assumed to be a fixed point, and the vibration of the ground surface is measured as a relative displacement. In addition, there are electric sensors such as electric type, piezoelectric type, feedback type, strain gauge type, etc., mechanical sensor falling ball type, falling rod type detectors, optical vibration sensor, capacitive type sensor and the like.

  In the above-mentioned advanced seismometers, there is a problem in that the installation location and the equipment cost are high in order to install it in a general home or a general meeting place.

  Therefore, a round hole having a round hole diameter corresponding to each seismic intensity is provided in the upper part of the pedestal. The pedestal is fixed by a substrate and screws. A sphere with a different diameter is placed on each round hole. Depending on the magnitude of the vibration at the time of the earthquake, there is a structure where the sphere falls from the pedestal according to the magnitude. (For example, see Patent Document 1)

In addition, when an earthquake that collapses a house occurs, a secondary disaster occurs due to electric appliances such as a stove or a heating device, so that it is required to cut off the power supply of commercial AC power.
Therefore, the energization is cut off by manually lowering the pivotable lever of the protective relay of the home switchboard.

  However, in the event of a major earthquake, secondary disasters cannot be prevented because various faults occur or are often absent and the protective relay cannot be shut off.

  Therefore, a circuit is wired so that the electromagnetic trip device of the circuit breaker can be operated by energization, a normally closed micro SW is provided in the circuit, and the micro SW is pushed so that the push button of the micro SW protrudes upward. The accommodation box is fixedly installed at a required place, and a weight whose position of the center of gravity is adjusted so that it falls down due to geomagnetic force is pushed down on the upper surface of the accommodation box to hold the micro SW in an open state. In this state, there is a power-off earthquake detector equipped with a weight that falls due to seismic force. (For example, see Patent Document 2)

JP 2006-208231 PR JP 11-273537 A

  However, there is a problem in making a seismometer small and detecting a wide range of vibrations of an earthquake, and also incorporating it into other workpieces. Furthermore, there are some difficulties in re-setting continuously by installing in the home or meeting place, etc. or wall mounting.

  In addition, in the case of an earthquake detector for power interruption at the time of an earthquake, these installation locations must be installed near the earth leakage breaker on the distribution board. Furthermore, it is impossible to notify various information as a seismometer in the house. Therefore, only the operation of shutting off the power supply due to the occurrence of a large earthquake.

  Then, this invention describes the effective apparatus which can interrupt | block the commercial alternating current power supply in a house using a simple seismometer and this seismometer in view of said subject.

A liquid such as water is sealed in a container that can be sealed in a seismometer, and a plurality of electrodes that detect liquid contact are provided.
When the container is shaken by the occurrence of an earthquake, the liquid becomes a wave shape in the container, and the magnitude of the shake is detected by contacting the electrode, and the state is displayed. In addition, since the structure is simple and a small container is used, it is small and can be manufactured inexpensively.

  Further, when an earthquake is detected using the simple seismometer, the display circuit indicates the magnitude of the shaking of the seismic intensity, and when the shaking is detected, the signal is sent to the leakage current generator, and the leakage current generator is It is a device that shuts off the power supply by flowing the current to the earth ground and detecting and operating the earth leakage breaker of the residential distribution board by virtual earth leakage.

  Therefore, since the simple seismometer with the built-in display circuit and the leakage current generator are integrated, it can be installed in a conspicuous place to obtain information on earthquakes in daily life, Against the secondary disaster caused by electricity.

In order to achieve the above object, according to the present invention, in a container that can be sealed, a certain amount of liquid is sealed in the container. Both an anode side electrode and a cathode side electrode for detecting a liquid are provided in the container. One of the two electrodes is inserted into the liquid and brought into contact. The other electrode is usually provided as a plurality of electrodes in a non-contact state with the liquid. The plurality of electrodes is provided with a plurality of electrodes, with the electrode provided in the vicinity of the liquid surface being the lower electrode.
The outputs of the plurality of electrodes are connected to the input of the detection circuit. The detection circuit is characterized in that when the container is shaken, the liquid becomes wave-like, and the detection circuit outputs a contact signal by contacting each of the plurality of electrodes according to the wave-like height.

  Further, by composing the simple seismometer and the leakage current generation circuit as described above integrally, when a large fluctuation is detected more than a certain level due to the occurrence of an earthquake, the detection signal is sent to the leakage current generation circuit to obtain a commercial AC power supply. The leakage current generating circuit generates a leakage current and flows it to the earth ground, whereby the leakage breaker of the residential distribution board operates and is cut off.

  In claim 1, the structure is simple, the device can be manufactured in a small size and at a low cost, and can be easily installed in the home and mounted on the wall. Therefore, it is possible to detect the earthquake shake instantly and accurately and inform the surrounding people of the magnitude of the shake.

In addition, in the case of a tremendous shaking, for example, an earthquake with a seismic intensity of 5 or more, it is possible to cut off the energization by operating the earth leakage breaker of the in-house distribution board, so that it is possible to prevent a secondary disaster caused by electricity. Furthermore, the power breaker can be immediately restored by pressing the reset button on the simple seismometer or turning off the power switch.
In addition, even if the AC power supply is in a power failure state, the rechargeable battery continuously detects and records the earthquake detection observation, so there is an extremely large earthquake that collapses in a power failure state. However, by continuously sending the detection signal to the leakage current generation circuit, the observation state is released, and at the same time, the earth leakage breaker in the house operates and shuts off the power supply in the house. It can also prevent disasters.

It is sectional drawing of the structure of a container and several electrodes which shows the 1st Example of this invention, and the block circuit diagram of a connection circuit. It is a principal part perspective view of the several electrode of FIG. 1 which shows the 1st Example of this invention. It is sectional drawing of AB seen from the upper part of FIG. FIG. 2 is a side view of the main part of the first embodiment of the present invention, in which the upper figure is a normal liquid and electrode, and the lower figure is a figure in which the liquid surface is in contact with the electrode in a wave height state due to an earthquake. It is sectional drawing of the side surface which provided the several electrode of this invention in the center vicinity. It is a block circuit diagram of the connection of the detection circuit of the container with a built-in electrode, a leakage current generator, and a distribution board which shows the 2nd Example of this invention. It is the block circuit diagram which added the volume setting alarm circuit in the structure of a simple seismometer and a leakage current generator. It is a perspective view of the external appearance of the structure which accommodated the simple seismometer and leakage current generation apparatus of this invention. It is the figure which attached the main body of FIG. 8 to the wall surface.

  Embodiments of the present invention will be described with reference to the drawings.

  1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5 are diagrams of a first embodiment of a simple seismometer according to the present invention. FIG. 1 is a side sectional view of the structure of a container and a plurality of electrodes. It is also a block circuit diagram for connecting the output of the electrode to the connection circuit. FIG. 2 is a perspective view of a main part of the plurality of electrodes and the structure shown in FIG. FIG. 3 is a cross-sectional view taken along the line AB of FIG. 1, showing the electrode D5 inside the container and the electrode support for the insulator. FIG. 4 is a side view of the main part of the liquid and electrode state in the container, the upper figure is a normal state, and the lower figure is a state where the liquid is shaken by an earthquake and the wave height is in contact with the electrode. FIG. 5 is a sectional view of a side surface in which a plurality of electrodes of a simple seismometer are provided small near the center.

Reference numeral 3 denotes a liquid, and 2 denotes a plurality of electrodes composed of D1, D2, D3, D4, and D5 for detecting the liquid. Reference numeral 1 denotes a container containing a liquid 3 and a plurality of electrodes 2. Reference numeral 4 denotes a circuit ground electrode, and 11 denotes an insulating electrode supporter for supporting the plurality of electrodes 2. Reference numeral 12 denotes a sealing lid for the liquid filling port. Reference numeral 10 denotes lead wires for the anode and cathode electrodes. Reference numeral 5 denotes a detection circuit that detects output signals of a plurality of electrodes. Reference numeral 6 denotes a display circuit that can visually check the state of the output signal of the detection circuit 5. Reference numeral 9 denotes a reset switch for setting the signal state to zero. 71 is a rechargeable battery built-in power supply circuit for supplying power to each circuit. Normally, it operates from an external power supply, and charging is also performed, so that in the event of a power failure, the power is supplied by a rechargeable battery, and the earthquake is continuously observed. Reference numeral 81 denotes a detection power switch for turning on / off the built-in rechargeable battery circuit 71.
Reference numeral 91 denotes a detection test switch (push switch) for confirming whether or not the operation is normal.

  As a circuit operation, the detection circuit 5 includes a plurality of flip-flop circuits and includes input terminals d1, d2, d3, d4, and d5. The display circuit 7 is LED1, LED2, LED3, LED4, and LED5. Therefore, when the liquid 3 comes into contact with the electrode D1 of the plurality of electrodes 2, the liquid 3 is input to the input d1 of the detection circuit, and the LED 1 of the display circuit 6 is turned on from the detection output. Similarly, when the liquid 3 comes into contact with the electrodes D1 and D2, the LED1 and LED2 of the display circuit are turned on.

  The mounting and structure of the plurality of electrodes 2 are cylindrical as shown in FIG. 1, FIG. 2, and FIG. 3, but the effect is the same regardless of the shape of the structure as an example.

Also,
Although the electrodes D1, D2, D3, D4, and D5 are used for the description in the plurality of electrodes 2, the detection range of the earthquake shake can be expanded by further increasing the number of electrodes, and the accuracy can be further increased.

  Accordingly, when the simple seismometer of the present invention is installed with the above-described configuration, it is horizontally installed on the wall surface or a stable base, and the detection power switch 81 is turned on. Here, when confirming whether each circuit operates normally, the detection test switch 91 provided in the simple seismometer is used for confirmation. Assuming that the maximum vibration is detected, it is confirmed that the LED 5 of the display circuit 6 is turned on by pressing the detection test 91 to turn it on.

Therefore, the container 1 which is a simple seismometer and its circuit configuration are set on a table or a wall surface, and the detection power switch 81 is turned on. Normally, when an earthquake does not occur and the house does not shake, the liquid 3 in the container 1 does not swell and does not touch the D1 of the electrode 2 as shown in the upper diagrams of FIGS. Thus, the LED of the display circuit 6 is not lit.
However, the liquid 3 undulates due to the intensity of shaking due to the occurrence of an earthquake, so that the wave height contacts the plurality of electrodes 2. At this time, the height of the wave height varies depending on the magnitude of the seismic intensity. By contacting D1, D2, D3, or D5, there is no insulation between the circuit ground electrode 4 and the contact state of each lead wire 10 Accordingly, each of the flip-flops of the detection circuit 5 is operated by d1 or d2 or d3 of the detection circuit 5 or by d5, and the signal output is transmitted to the display circuit 6 to light the LED.

The LED of the display circuit 6 is turned on if the wave height is in contact with the electrode D1, and the LED 1 is turned on if the wave height up to the electrode D2 is in contact with the electrode D1. Will light up. If the wave height comes into contact with the electrode D5 due to a tremendous shaking of the seismic intensity, the LEDs of the display circuit 6 are lit from LED1 to LED5. In the initial state of shaking, the LED 1 of the display circuit 6 is lit in contact with the electrode D1 with small shaking, but when the shaking again is large and the wave height touches the electrode D4, the display circuit 6LED is LED1, LED2, LED3 and LED4 are turned on.
The display circuit 6LED is in a lighting state from the memory of the detection circuit 6 even if the shaking stops. Therefore, to turn off the light, when the reset switch 9 is pressed, the detection circuit 5 is in an initial state and the LED is turned off.

  In FIG. 5, the plurality of electrodes 2A are smaller than the plurality of electrodes 2 and provided near the center. The structure is such that an insulating electrode support 11A is provided at the center, and the electrode support 11A is provided with a plurality of electrodes 2A and a circuit ground electrode 4A below. The plurality of electrodes 2A can be in the shape of a ring or a polygonal plate.

6, 8 and 9 are diagrams of a second embodiment of the leakage current generator 1A according to the present invention.
FIG. 6 is a diagram showing a second embodiment of the present invention, and is a block circuit diagram of a connection between a detection circuit for a container with a built-in electrode, a leakage current generator, and a distribution board.
FIG. 8 is a perspective view of the external appearance of a structure with an integrated leakage current generator using the simple seismometer of the present invention. FIG. 9 is a diagram in which the main body of FIG. 8 is attached to a wall surface.

Reference numeral 16 denotes a leakage current generation circuit connected to the detection circuit 5. The leakage current generation circuit 16 inputs the detection signal of the detection circuit 5. A relay switch 18 operates when a detection signal is input. 20 is a sensitivity changeover switch. When the relay 18 is turned on when the sensitivity changeover switch is turned on, the value of the current that flows as an AC leakage current when connected from one end of 100 V may vary depending on the grounding resistance of the earth ground. Normally, the set resistance value is the value of R1. However, the resistance value is switched to R2 when the grounding resistance value is extremely high in home construction.
The sensitivity is switched by confirming the operation of the earth leakage breaker 21 by the detection test 91.
19 is the earth ground, 8 is the main power switch for the entire circuit, 22 is the in-house distribution board, 21 is the earth leakage breaker installed in the in-house distribution board 22, and 23 is the commercial AC power supply to the in-house distribution board 22 is there.
Reference numeral 17 denotes a polarity test switch, which is a push switch for confirming whether the ground side or the voltage side is connected to the main power supply circuit 7 of the leakage current generator from the wiring of the distribution board 22 in the house. The LED 7 is lit when the polarity test switch 17 is turned on and the connection between the voltage side and the earth ground side is correct. The LED 6 is lit when the main power switch 8 is on.

  Therefore, the leakage current generator 1A having the above structure is installed and fixed on the wall surface or a stable base. In order to accurately measure the detection of the wave height of a simple seismometer in a fixed installation, it is installed horizontally by a level device 24. Or do wall mounting. Connect with the commercial AC power supply 23 while installing. Connect the wiring cable directly to the main unit or plug in with the wiring cap, but in order to prevent the voltage side and the earth ground side from being mistaken, a polarity test Check with switch 17. Therefore, it is confirmed that the LED 7 is turned on by pressing the polarity test switch 17 to turn it on. Here, when the LED 7 is not lit, the polarity is different, so that it can be normally installed and attached by changing the wiring.

  Further, whether or not the leakage current generator 1A operates normally due to the occurrence of an earthquake is confirmed by the detection test switch 91 provided in the simple seismometer. Assuming that the maximum vibration is detected, when the detection test 91 is pressed and turned on, the LED 5 of the display circuit 6 is turned on, and a detection signal is sent to the input of the leakage current generation circuit 16. When the transistor operates from the circuit and the relay switch 18 is turned on, a virtual leakage current flows from the voltage side of the commercial AC power supply 23 through either the R1 or R2 by the sensitivity changeover switch 20 and is grounded from the ground 19 The installation is completed after confirming that the earth leakage breaker 21 provided in the in-house distribution board 22 senses the earth leakage current and stops the power supply due to the virtual earth leakage current flowing through.

  Therefore, when the earthquake occurs and the shaking is weak, when the electrode D1 and the electrode D2 of the plurality of electrodes 2 come into contact with the wave height of the liquid 3 of the simple seismometer, the detection circuit 5 detects and the LED 1 of the display circuit 6 Although the LED 2 is lit, a detection signal to the leakage current generation circuit 16 is not generated. However, when a severe earthquake that causes the house to collapse occurs, when the wave height of the liquid 3 of the simple seismometer contacts all of the electrodes of the plurality of electrodes 2, the detection circuit 5 detects and all of the LEDs of the display circuit 6 are detected. Light. At the same time, the detection circuit 5 sends a detection signal to the leakage current generation circuit 16 so that the relay switch 18 operates to be turned on. When the relay switch 18 is turned on, a virtual earth leakage current flows to the earth through the earth earth 19, so that the earth leakage breaker 21 operates to cut off the power supply.

  By the above operation, a secondary disaster that occurs when a house collapses, furniture collapses, an electric appliance or an electric facility is ignited, or a power failure is canceled after a power failure is prevented.

  Moreover, when the power supply is restored without any problem in the disaster, when the earth leakage breaker 21 and other circuit breakers are energized, the reset switch 9 of the detection circuit 9 is pressed to prevent the earthquake from shaking. The information is in the initial state. Therefore, the relay switch 18 of the leakage current circuit 16 is turned off, and each circuit breaker of the in-house distribution board 22 can be restored.

In addition, as shown in FIG. 8, in the configuration of the simple seismometer and the leakage current generator 1A, a block circuit diagram in which a volume setting alarm circuit 15 is added, the output of the detection circuit 5 is used as the volume setting alarm. Connect to circuit 15. The volume setting alarm circuit 15 sets the volume level in advance.
Therefore, when the shaking is small due to the occurrence of an earthquake, when the liquid contacts the electrode D1 of the plurality of electrodes 2, the LED 1 of the display circuit 6 is turned on by the output signal of the detection circuit 2, and at the same time, The volume is the lowest. Further, when the wave height of the liquid touches the electrode D5 of the plurality of electrodes 2 in the state of severe shaking, the set sound volume of the dial tone of the volume setting alarm circuit 15 emits the maximum sound at the same time when the LED 5 of the display circuit 6 is turned on. .
Therefore, the alarm volume varies depending on the intensity of shaking, so that it is possible to notify the surrounding people who are far away and those with impaired eyes.

1 is container
1A is the origin of the leakage current connection 2 is the plural electrodes 3 is the liquid 4 is the circuit ground electrode 5 is the detection circuit 6 is the display circuit 7 is the main power circuit
71 is a rechargeable battery power circuit 8 is a main power switch
81 is the detection power switch 9 is the reset switch
91 is a detection test switch (push switch)
10 is the lead wire
11 is an electrode support
12 is a sealed lid
15 is a volume setting alarm circuit
16 is a leakage current generation circuit
17 is a polarity test switch (push switch)
18 is a relay switch
19 is earth ground
20 is the sensitivity selector switch
21 is the earth leakage breaker
22 is a residential distribution board
23 is a commercial AC power supply
24 is a level D1, D2, D3, D4, D5 is each electrode d1, d2, d3, d4, d5 is each input terminal R1, R2 of a detection circuit, and a leakage current value change resistance

In order to achieve the above object, according to the present invention, in a container that can be sealed, a certain amount of liquid is sealed in the container. Both an anode side electrode and a cathode side electrode for detecting a liquid are provided in the container. One of the two electrodes is inserted into the liquid and brought into contact. The other electrode is usually provided as a plurality of electrodes in a non-contact state with the liquid. The plurality of electrodes is provided with a plurality of electrodes, with the electrode provided in the vicinity of the liquid surface being the lower electrode.
The outputs of the plurality of electrodes are connected to the input of the detection circuit. The detection circuit is characterized in that when the container is shaken, the liquid becomes wave-like, and the detection circuit outputs a detection signal by contacting each of the plurality of electrodes according to the wave-like height.

  In addition, by constructing the simple seismometer and the leakage current generation circuit as described above in an integrated manner, when a large fluctuation is detected more than a certain level due to the occurrence of an earthquake, a detection signal is sent to the leakage current generation circuit to Originally, the earth leakage breaker of the residential distribution board operates and is cut off when the earth leakage current generating circuit generates earth leakage current and flows it to the earth ground.

1 is container
1A is a leakage current generator 2 is a plurality of electrodes 3 is a liquid 4 is a circuit ground electrode 5 is a detection circuit 6 is a display circuit 7 is a main power circuit
71 is a rechargeable battery power circuit 8 is a main power switch
81 is the detection power switch 9 is the reset switch
91 is a detection test switch (push switch)
10 is the lead wire
11 is an electrode support
12 is a sealed lid
15 is a volume setting alarm circuit
16 is a leakage current generation circuit
17 is a polarity test switch (push switch)
18 is a relay switch
19 is earth ground
20 is the sensitivity selector switch
21 is the earth leakage breaker
22 is a residential distribution board
23 is a commercial AC power supply
24 is a level D1, D2, D3, D4, D5 is each electrode d1, d2, d3, d4, d5 is each input terminal R1, R2 of a detection circuit, and a leakage current value change resistance

Claims (2)

In a container that can be sealed, a certain amount of liquid is sealed in the container. Both an anode side electrode and a cathode side electrode for detecting a liquid are provided in the container. One of the two electrodes is inserted into the liquid and brought into contact. The other electrode is usually provided as a plurality of electrodes in a non-contact state with the liquid. The plurality of electrodes is provided with a plurality of electrodes, with the electrode provided in the vicinity of the liquid surface being the lower electrode.
The outputs of the plurality of electrodes are connected to the input of the detection circuit. The detection circuit is a simple seismometer, wherein when the container is shaken, the liquid is waved, and the detection circuit outputs a contact signal by contacting each of the plurality of electrodes according to the wave height.    When the simple seismometer according to claim 1 and the leakage current generation circuit are integrated, when a large fluctuation is detected more than a certain level due to the occurrence of an earthquake, the detection signal is sent to the leakage current generation circuit, thereby supplying a commercial AC power supply. The earth leakage current generator using a simple seismometer, wherein the earth leakage circuit of the residential distribution board operates and shuts down when the earth leakage current generating circuit generates current as earth leakage and flows to ground .

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