JPH09215178A - Circuit breaker device with earthquake sensing function and residential distribution board with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circuit breaker device with an earthquake sensing function which actuates a circuit breaker upon detecting a power failure after an earthquake occurs or the restoration of power supply after the power failure. SOLUTION: In a control unit 1, a control microcomputer 3 detects earthquakes of the seismic intensity set by means of a setting switch 10 based on the output signal of an earthquake sensing sensor 5 and a timer 8 limits a fixed period of time after the microcomputer detects an earthquake of the set seismic intensity or stronger. The microcomputer 3 detects the interruption of commercial power supply 17 during the period until the timer 8 completes the time limiting operation after the microcomputer 3 detects the earthquake. When the microcomputer 3 detects the restoration of power supply after the power failure, the computer 3 interrupts the power supply by forcibly opening an earth leakage breaker 2 by using a breaker trip circuit 4 and, at the same time, indicates the opened state of the breaker 2 by flickering the LED of an LED display section 12 and producing voices through a loudspeaker 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit breaker with a seismic function, which shuts off the supply of electric power when an abnormal situation such as an earthquake or a power failure occurs to prevent a secondary disaster such as a fire or an electric shock. The present invention relates to a residential distribution board equipped with it.

[0002]

2. Description of the Related Art Conventionally, a power cutoff device for detecting the occurrence of an earthquake and cutting off power supply has been widely known. For example, a power cutoff device as disclosed in Japanese Patent Laid-Open No. 4-322120 is provided. ing. As shown in FIG. 19, this power cutoff device has a circuit breaker 38 that cuts off the power supply when an overcurrent flows, a seismoscope 34 that detects vibration due to an earthquake, and an output waveform of the seismic shock absorber 34. The feature amount extraction unit 35 that extracts and outputs the feature amount from the output, the inference unit 36 that performs fuzzy inference based on the output signal of the feature amount extraction unit 35 to determine whether or not there is an earthquake, and the determination result of the inference unit 36. Based on this, the controller 37 forcibly opens the circuit breaker 38 to shut off the power supply to the load.

If an earthquake occurs here, the inference unit 36
Discriminates whether or not there is an earthquake from the output waveform of the seismic sensor 34 extracted by the feature quantity extraction unit 35, and the control unit 37 causes the inference unit 3
The circuit breaker 38 is forcibly opened based on the determination result of 6 to cut off the power supply, and the safety of the circuit breaker 38 in the event of an earthquake is improved.

[0004]

In the power cutoff device having the above-described structure, when the occurrence of an earthquake is detected, the control unit immediately forcibly opens the circuit breaker to cut off the power supply.
There is a problem in that facilities and equipment that require electric power, such as automatic doors and telephones, do not operate when the family member evacuates.

The present invention has been made in view of the above problems, and the invention of claim 1 does not interrupt the power supply until the power failure of the commercial power source occurs even after the occurrence of the earthquake and the occurrence of the earthquake. The purpose is to cut off the power supply when a power failure occurs later. According to the invention of claim 2, the power supply is not interrupted until the commercial power supply fails and the power is restored even after the earthquake occurs, and when the power is restored after the commercial power supply is interrupted due to the earthquake, The purpose is to cut off the power supply.

An object of the present invention is to reliably cut off the power supply when the commercial power source is restored, even if an earthquake occurs after the commercial power source is cut off. Claim 4
Another object of the present invention is to prevent the forced opening means from malfunctioning due to a power failure that occurs after a lapse of a predetermined time from the occurrence of an earthquake.

A fifth aspect of the present invention is intended to allow a family member to easily grasp the open state of the breaker.
The invention of claim 6 aims to improve the usability of the display unit. It is an object of the invention of claim 7 to make it possible to easily grasp the cause of contact opening of the breaker when power is restored after a power failure.

According to the invention of claim 8, even when a power failure occurs before the occurrence of an earthquake, the power supply is surely cut off at the time of power recovery, and the cause of the breaker opening is easily grasped at the time of power recovery after the power failure. The purpose is to be able to. The invention of claim 9 is intended to keep the backup power supply for a long time.

An object of the present invention is to reduce the size of the backup power source and to grasp the remaining amount of the backup power source. The eleventh aspect of the invention is intended to accurately grasp the remaining amount of the backup power source. A twelfth aspect of the present invention is intended to notify a resident at a remote place of the shortage of the remaining amount of the backup power source.

A thirteenth aspect of the present invention is intended to surely inform the householder that the remaining amount of the backup power source is insufficient. It is an object of the inventions of claims 14 to 16 to supply electric power to a load such as lighting through a branch breaker even after the breaker is forcibly opened. The invention of claim 17 aims to improve the usability of the circuit breaker with seismic function.

The object of the 18th aspect of the invention is to make it possible for a family member to easily grasp the magnitude of the current flowing through the main breaker. The invention of claim 19 is intended to enable a householder to easily grasp the magnitude of the current flowing through each branch breaker.

[0012]

According to the invention of claim 1, in order to achieve the above object, an earthquake detecting means for detecting an occurrence of an earthquake having a predetermined seismic intensity and a power failure detecting means for detecting a power failure of a commercial power source. When the power failure detection means detects a power failure of the commercial power supply after the earthquake detection means detects the occurrence of an earthquake, the control signal output means outputs a control signal, and the control signal output means controls the breaker when the control signal is input. Since it is equipped with a forced contact opening means for opening contacts, it is possible to supply power to the load from the occurrence of an earthquake to the occurrence of a power failure, and cut off the power supply to the load after a power failure occurs. be able to.

According to the invention of claim 2, an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power supply, and a power recovery detecting means for detecting a power recovery of the commercial power supply. And a control signal output means for outputting a control signal when the power recovery detection means detects a power recovery of the commercial power source after the power failure detection means detects a power failure of the commercial power supply after the earthquake detection means detects the occurrence of an earthquake, and a control signal Since it is equipped with a forced opening means for forcibly opening the breaker when the control signal of the output means is input, until the power failure occurs after the earthquake occurs,
It is possible to supply power to the load, and after power failure occurs in the commercial power supply, after power is restored, power supply to the load can be cut off.

According to the invention of claim 3, an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power source, and a power recovery detecting means for detecting a power failure of the commercial power source. After the earthquake detection means detects the occurrence of an earthquake and the power failure detection hand throw detects the power failure of the commercial power source,
The power recovery detection means includes a control signal output means for outputting a control signal when the power recovery of the commercial power source is detected, and a force opening means for forcibly opening the breaker when the control signal of the control signal output means is input. Therefore, even if an earthquake occurs after a power failure, the commercial power supply can be reliably cut off when the commercial power is restored.

According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the earthquake detecting means is provided with timer means for timing a fixed time after detecting the occurrence of an earthquake, and a power failure is detected during the time-limited operation of the timer means. The control signal output means outputs the control signal only when the means detects the power failure of the commercial power supply, so even if the power failure or the power recovery after the power failure occurs after a certain time has passed from the earthquake occurrence, the control signal output It is possible to prevent the means from outputting the control signal.

According to a fifth aspect of the present invention, in the first to third aspects of the present invention, the breaker is provided with a display unit for displaying a state in which the breaker is forcedly opened by the forced opening means. Can be easily grasped. According to the invention of claim 6, in the invention of claim 4, a display portion provided with a wireless signal receiving means for receiving the display control signal transmitted wirelessly is provided separately, and the display control signal for controlling the display portion is wirelessly transmitted. Since the display control unit for transmitting the data is provided, it is possible to easily change the mounting position of the display unit.

According to a seventh aspect of the invention, in the first to third aspects of the invention, since the EEPROM in which the detection information of the earthquake detecting means and the power failure detecting means is written is provided, the cause of the breaker opening at the time of power recovery after a power failure is provided. Can be easily grasped. According to the invention of claim 8, in the invention of claim 7, when the earthquake detecting means detects an earthquake before the power failure detecting means detects a power failure of the commercial power source, the commercial power source writes the detection information of the earthquake and the power failure in the EEPROM. At the same time, when the earthquake detection means detects an earthquake after the power failure detection means detects a power failure of the commercial power supply, the commercial power supply is switched to the backup power supply, and the earthquake and power failure detection information is written in the EEPROM. It is possible to save each detection information in the EEPROM at the time of power failure.

According to a ninth aspect of the invention, in the eighth aspect of the invention, the backup power supply stops the power supply after a lapse of a certain time after switching, so that the consumption of the backup power supply can be reduced. According to a tenth aspect of the invention, in the eighth or ninth aspect of the invention, the backup power source is a battery, and the remaining amount detecting means for detecting the remaining amount of the battery, and the remaining amount of the battery not exceeding a predetermined value are the remaining amount. Since the notifying means for notifying the shortage of the remaining amount of the battery when the detecting means detects is provided, it is possible to inform the householder of the shortage of the remaining amount of the battery.

According to the eleventh aspect of the invention, in the tenth aspect of the invention, the remaining amount detecting means detects the remaining amount of the battery at every predetermined time, so that the insufficient remaining amount of the battery can be accurately grasped. . In the invention of claim 12, claim 10 or 11
In the invention, since the notifying means is composed of the indicator for displaying the insufficient remaining battery level and the voice output device for outputting the insufficient remaining battery level by voice, the householder can know the insufficient remaining battery level. I can easily inform you.

According to the thirteenth aspect of the present invention, in the twelfth aspect of the present invention, the voice output device outputs the battery remaining amount shortage by voice every predetermined time, so that the householder is surely notified of the battery remaining amount insufficient. be able to. In the invention of claim 14, the earthquake detecting means for detecting the occurrence of an earthquake of a predetermined seismic intensity, the power failure detecting means for detecting a power failure of the commercial power supply, and the power failure detecting means after the earthquake detecting means detects the occurrence of the earthquake. A sense consisting of control signal output means for outputting a control signal when a power failure of the commercial power source is detected, and forced opening means for forcibly opening the main breaker interposed in the commercial power source when the control signal of the control signal output means is input. A circuit breaker with seismic function, a first branch breaker electrically connected to the load side of the main breaker,
A second branch breaker electrically connected to the power source side of the main breaker is provided.

Further, in the invention of claim 15, an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power supply, and a power recovery for detecting the power recovery of the commercial power supply. A detection means and a control signal output means for outputting a control signal when the power recovery detection means detects a power recovery of the commercial power supply after the power failure detection of the commercial power supply of the power failure detection means after the earthquake detection means detects the occurrence of an earthquake, Circuit breaker with seismic function consisting of forced opening means that forcibly opens the main breaker that is interposed in the commercial power supply when the control signal from the control signal output means is input, and is electrically connected to the load side of the main breaker And a second branch breaker electrically connected to the power source side of the main breaker.

Further, in the sixteenth aspect of the present invention, an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power source, and a power recovery for detecting the power recovery of the commercial power source. After the detection means and the earthquake detection means detect the occurrence of an earthquake and the power failure detection throw detects the power failure of the commercial power supply, the power recovery detection means outputs a control signal when the power recovery of the commercial power supply is detected. Means and a circuit breaker with a seismic-sensing function consisting of a forced opening means for forcibly opening the main breaker interposed in the commercial power source when a control signal from the control signal output means is input, and an electric circuit is connected to the load side of the main breaker. The first branch breaker electrically connected to the main breaker and the second branch breaker electrically connected to the power source side of the main breaker are provided. Therefore, the forced opening is performed similarly to the inventions of claims 14 and 15. Means is the first minute Even after opening the circuit breaker, it is possible to supply power to the load via a second branch breakers.

In the seventeenth aspect of the invention, the fourteenth and fifteenth aspects are provided.
Alternatively, in the invention of the sixteenth aspect, since the circuit breaker with seismic function is detachably attached, the circuit breaker with seismic function can be attached at a convenient position.
According to the invention of claim 18, claim 14, 15, 16 or 1
In the seventh aspect of the invention, since the current display means for displaying the magnitude of the current flowing through the main breaker is provided, the total amount of power consumption can be easily grasped.

In the nineteenth aspect of the present invention, the fourteenth and first aspects are provided.
In the invention of 5, 16, or 17, since the individual current display means for displaying the magnitude of the current flowing through the first branch breaker for each individual first branch breaker is provided, the power consumption at each demand place can be displayed. It can be easily grasped.

[0025]

Embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) The residential distribution board of this embodiment is shown in FIG.
As shown in (a) to (c), a main breaker 2 composed of an earth leakage breaker that is forcibly opened to shut off the supply of electric power to a load when an overcurrent or a short-circuit current flows or an electric leakage occurs. , Detecting a power outage after detecting the occurrence of an earthquake,
Further, it is composed of a control unit 1 which is a circuit breaker with a seismic function for forcibly opening the main breaker 2 when detecting the start of power supply after a power failure.

Here, the control unit 1 is shown in FIG.
As shown in the block diagram of FIG. 1, a DC power source 7 that inputs the commercial AC power source 17 from the power source side of the main breaker 2 and outputs the operating power source of the control unit 1 and a signal that corresponds to the seismic intensity by detecting the vibration of the earthquake. The seismic sensor 5 that outputs to the control microcomputer 3 and the control microcomputer 3 as an earthquake detecting means
Is a setting switch 10 for setting the threshold value of seismic intensity for detecting the occurrence of an earthquake, and detects the occurrence of an earthquake from the output signal of the seismic sensor 5 as an earthquake detecting means, and the output voltage of the DC power supply 7 as a power failure detecting means. From the commercial AC power supply 17 to detect the power failure after the power failure from the output voltage of the DC power supply 7 and the power failure detection information as the power recovery detection means, and based on the detection information of the earthquake, the power failure, and the power recovery. As a control signal output means, a control microcomputer 3 for outputting a control signal for forcibly opening the main breaker 2 and when a control signal is input from the control microcomputer 3 as a control signal output means, a pseudo leakage current is generated and the main breaker 2 is opened. The breaker trip circuit 4, which is a forced opening means for forcibly opening the contact, and the control microcomputer 3, which is an earthquake detection means, is a timer means for delaying a fixed time after the occurrence of an earthquake is detected. A timer 8, a current detection unit 9 for outputting a detection result to the control microcomputer 3 detects the magnitude of the current flowing through the main breaker 2 by using a current transformer 16,
A driver 11 that causes the LED display unit 12 to display the magnitude of the current flowing through the main breaker 2 and the open state of the main breaker 2 based on the display control signal input from the control microcomputer 3 as the display control unit, and also the display control unit. Based on a display control signal input from the control microcomputer 3 as the above, a voice synthesizing unit 13 for synthesizing the transmission contents by voice to transmit the open state of the master breaker 2 by voice, and the voice synthesizing unit 13 are synthesized. Amplifier 1 that amplifies audio signals
4, the speaker 15 for outputting the audio signal amplified by the amplifier 14, and the residual voltage of the smoothing capacitor provided in the DC power supply 7 as the operating power source at the time of power failure, and the control microcomputer 3 as the power failure detecting means detects the power failure. Then, it is composed of the EEPROM 6 for saving the respective detection information of the earthquake and the power failure.

The operation of the control unit 1 will be described with reference to the flowchart of FIG. First, A in FIG.
Then, when the power is turned on to the residential distribution board, the control unit 1 is in the initial state and starts operating. The control microcomputer 3 as an earthquake detecting means sequentially reads the output value of the seismic sensor 5 and compares it with the seismic intensity preset by the setting switch 10 (B in FIG. 3). When the control microcomputer 3 as an earthquake detecting means detects the occurrence of an earthquake, the control microcomputer 3 starts the time-delaying operation of the timer 8 (C in FIG. 3). During the time limit operation of the timer 8, the control microcomputer 3 as a power failure detecting means sequentially determines whether or not a power failure of the commercial AC power source 17 occurs due to a decrease in the output voltage of the DC power source 7 (E in FIG. 3). When the control microcomputer 3 detects a power failure before the time limit time of the timer 8 elapses, the control microcomputer 3 saves each detection information of earthquake and power failure in the EEPROM 6. When the commercial AC power supply 17 returns to power, the control microcomputer 3 goes to EEP
The detection information of the earthquake and the power failure saved in the ROM 6 is read, and the control microcomputer 3 as the power recovery detecting means detects the power recovery after the power failure that occurred after the earthquake (F in FIG. 3). Here, after the control microcomputer 3 as the earthquake detection means detects the occurrence of an earthquake and then the control microcomputer 3 as the power recovery detection means detects the power recovery after the power failure, the control microcomputer 3 as the control signal output means A control signal for forcibly opening the main breaker 2 is output to the breaker trip circuit 4. The breaker trip circuit 4 generates pseudo-leakage based on the control signal input from the control microcomputer 3, forcibly opens the main breaker 2 and cuts off the power supply (G in FIG. 3). Here, the control microcomputer 3 as the display control means outputs a display control signal to the voice synthesizing unit 13 and the driver 11 as the display unit, and the voice synthesizing unit 13 outputs the display control signal from the master breaker 2 based on the display control signal from the control microcomputer 3. The display content in the open state is synthesized with a voice signal, and the amplifier 14 amplifies the voice signal synthesized by the voice synthesizer 13 and outputs it as a voice from the speaker 15 (H in FIG. 3). In addition, until the main breaker 2 is turned on again, the driver 11 sets the open state of the main breaker 2 to LE based on the display control signal of the control microcomputer 3.
It is displayed using the D display unit 12 (I in FIG. 3). By the way, since the commercial AC power supply 17 is input to the DC power supply 7 from the power supply side of the master breaker 2, the DC power supply 7 is supplied to the control unit while the commercial AC power supply 17 is supplied even after the main breaker 2 is opened. 1 can be supplied with electric power. In FIG. 3J, when the family re-enters the main breaker 2, the control microcomputer 3 detects the re-entry of the main breaker 2 from the detection result of the current detection unit 9, and causes the driver 11 to turn on the LED.
While stopping the display of the display unit 12,
Each detection information of power recovery and the timer 8 are initialized (K in FIG. 3), and the initial state is restored (L in FIG. 3). On the other hand, in D of FIG. 3, when the power failure of the commercial AC power supply 17 does not occur during the timed operation of the timer 8, the control microcomputer 3 initializes the earthquake detection information and the timer 8 (K in FIG. 3). ), And returns to the initial state (L in FIG. 3).

By the way, the breaker trip circuit 4 is shown in FIG.
In the case of the circuit as shown in (a), when the control microcomputer 3 as the control signal output means outputs a control signal for forcibly opening the main breaker 2 to the breaker trip circuit 4, the breaker trip circuit 4 causes the relay coil ( (Not shown) to close the relay contact RY1 and short-circuit the primary side and the secondary side of the main breaker 2 via the resistor R1 to generate a pseudo-leakage and to make the main breaker 2 Forcibly open the contacts to cut off the power supply. Also, FIG.
In the case of the main breaker 2 equipped with the test button PB as shown in (b) and (c), the breaker trip circuit 4 excites the relay coil when a control signal for forcibly opening the main breaker 2 is input from the control microcomputer 3. And relay contact R
By closing Y2, a test operation is performed instead of the test button PB to forcibly open the main breaker 2 to cut off the power supply. In addition, breaker trip circuit 4
May have a configuration other than the above.

As described above, even if an earthquake of a set seismic intensity or more occurs, the control unit 1 does not open the main breaker 2 until the power supply is started after the commercial AC power supply 17 is cut off. It is possible to operate facilities and equipment useful for evacuation of the occupants such as automatic doors and telephones to which electric power is supplied via the breaker 2. Further, when the commercial AC power supply 17 is restored after a power failure, the control unit 1 forcibly opens the main breaker 2 to shut off the power supply to the load connected to the main breaker 2, so that a fire or It is possible to prevent secondary disasters such as electric shock. If the main breaker 2 is forcibly opened, LE
Since the housekeeper is informed of the contact opening state of the master breaker 2 using the D display unit 12 and the speaker 15, the housekeeper can easily understand the contact opening state of the master breaker 2.

The primary winding of the current transformer 16 is connected to the power supply line of the main breaker 2, and a current proportional to the current flowing through the primary winding flows through the secondary winding of the current transformer 16. Therefore, the current detection unit 9 detects the magnitude of the current flowing in the main breaker 2 from the secondary current of the current transformer 16 and outputs it to the control microcomputer 3, and the control microcomputer 3 uses the driver 11 to display the LED display unit 1.
1 shows the magnitude of the current flowing through the main breaker 2.

When a power failure occurs, the writing power source of the EEPROM 6 uses the residual voltage of the smoothing capacitor provided in the DC power source 7, so that it is not necessary to provide a battery as the writing power source of the EEPROM 6. (Embodiment 2) In Embodiment 1, if a commercial AC power supply 17 is interrupted by a certain time after the occurrence of an earthquake is detected, the main breaker 2 is opened when the power is restored after the interruption. However, in the present embodiment, the main breaker 2 is opened when a power failure occurs.

The operation of the control unit 1 of this embodiment will be described with reference to the flowchart of FIG. When the power is turned on to the residential distribution board, the control unit 1
Becomes the initial state and starts operating (A in FIG. 4). The control microcomputer 3 as an earthquake detecting means sequentially reads the output signal of the seismic sensor 5 and compares the output signal of the seismic sensor 5 with the seismic intensity preset by the setting switch 10 (B in FIG. 4). When an earthquake with a seismic intensity equal to or higher than the set seismic intensity occurs, the control microcomputer 3 detects the occurrence of the earthquake and causes the timer 8 to start the time delay operation (C in FIG. 4). During the time-delaying operation of the timer 8, the control microcomputer 3 as a power failure detecting means successively determines whether or not the commercial AC power source 17 has a power failure due to a decrease in the output voltage of the DC power source 7 (E in FIG. 4). Three
When the power failure of the commercial AC power supply 17 is detected, the detection signals of the earthquake and the power failure are saved in the EEPROM 6. here,
When the control microcomputer 3 as a control signal output means detects a power failure after the occurrence of an earthquake, it outputs a control signal for opening the main breaker 2 composed of an earth leakage breaker to the breaker trip circuit 4, and a breaker trip circuit 4 as a forced opening means. Shuts off the power supply by forcibly opening the main breaker 2 based on the control signal from the control microcomputer 3 (F in FIG. 4). When the commercial AC power supply 17 restores power, the control microcomputer 3 as a power recovery detection unit reads the earthquake detection information and the power failure detection information from the EEPROM 6 and detects the power recovery after the power failure that occurred after the earthquake occurred (G in FIG. 4). . At this time, the control microcomputer 3 as the display control means outputs a display control signal to the voice synthesizing unit 13 as the display unit and the driver 11, respectively, and the voice synthesizing unit 13 outputs the main circuit breaker 2 based on the display control signal from the control microcomputer 3. Amplifier 1 is synthesized by voice signal
Reference numeral 4 amplifies the voice signal synthesized by the voice synthesizer 13 and outputs it as a voice from the speaker 15 (H in FIG. 4). Further, the driver 11 displays the open state of the master breaker 2 on the LED display unit 12 based on the display control signal of the control microcomputer 3 until the master breaker 2 is reclosed (I in FIG. 4). After that, when the control microcomputer 3 detects the reclosing of the main breaker 2 from the detection result of the current detection unit 9 (J in FIG. 4), the driver 11 stops the display of the LED display unit 12, and the earthquake, power failure, Each detection information of power recovery and the timer 8 are initialized (K in FIG. 4), and the initial state is restored (L in FIG. 4). On the other hand, in D of FIG. 4, if the commercial AC power supply 17 does not fail before the time-delaying operation of the timer 8 elapses, the control microcomputer 3 initializes the earthquake detection signal and the timer 8 (see FIG. 4). K), and returns to the initial state (L in FIG. 4).

By the way, the breaker trip circuit 2 is shown in FIG.
In the case of the configuration as shown in (1), the control microcomputer 3 as the control signal output means outputs a control signal for forcibly opening the main breaker 2 to close the contact S1. Contact point S1
When is closed, a current is applied from the DC power supply 7 to the trip coil L1. At this time, an exciting force is generated in the plunger attached to the trip coil L1 so as to be able to move back and forth, and the contact S2 provided in each phase of the main breaker 2 is pulled out by the plunger to shut off the main breaker 2. Here, since a battery may be used as the DC power source 7, the main breaker 2 can be surely shut off even during a power failure.
The breaker trip circuit 4 may have a configuration other than the above.

As described above, even if an earthquake of a predetermined seismic intensity or more occurs, the control unit 1 does not open the main breaker 2 until the commercial AC power supply 17 is cut off,
With equipment and devices that require electric power, such as automatic doors and telephones, it is possible to operate equipment and devices that are useful for evacuation of homes,
Evacuation of family members can be facilitated. Further, once the commercial AC power supply 17 is cut off, the main breaker 2 is forcibly opened to cut off the power supply to the load connected to the main breaker 2, so that secondary power such as fire or electric shock may occur. It is possible to prevent disasters.

The structure of the control unit 1 is the same as that of the first embodiment, and therefore its explanation is omitted. (Embodiment 3) In this embodiment, as shown in FIG. 6, eight first branch breakers, which are branch branches for outlets provided on the load side of the main breaker 2 composed of an earth leakage breaker, branching from the main breaker 2. A breaker 18 and six branch breakers 19 for electric lights, which are the second branch breakers provided in parallel with the main breaker 2 on the power source side of the main breaker 2, are provided. Here, as shown in the first or second embodiment, when the control unit 1 detects a power failure after detecting the occurrence of an earthquake or a power recovery after that and forcibly opens the main breaker 2, the main breaker 2 Since the power supply to the load connected to the outlet branch breaker 18 provided on the load side is cut off, it is possible to reduce the possibility of a secondary disaster such as a fire or electric shock. On the other hand, the load connected to the branch breaker 19 for electric lights provided on the power supply side of the main breaker 2 does not cut off the power supply even after the main breaker 2 is opened. Since electric power is supplied to the load (lighting equipment) connected to 19, it is possible to secure the lighting and facilitate the evacuation of the housekeeper.

Since the structure and operation of the control unit 1 are the same as those of the first or second embodiment, the description thereof will be omitted. (Fourth Embodiment) As shown in FIG. 7, the residential distribution board of the present embodiment includes a distribution board body 20, a cover 21 that covers the front surface of the distribution board body 20, and a distribution board. A main breaker 2 composed of an earth leakage breaker arranged in the switchboard main body 20, an outlet branch breaker 18 provided on the load side of the main breaker 2, and an electric light branch breaker 19 provided on the power supply side of the main breaker 2 And a monitor unit 22 for displaying the open state of the main breaker 2, and a mounting holder 30 mounted on the distribution board body 20 for detachably holding the monitor unit 22.

Here, as shown in FIG. 8, the mounting holder 30 is formed with a fitting convex portion 31 having a U-shaped cross section, and the distribution board main body 20 is formed by using two mounting screws 32. It is installed in. In addition, the monitor unit 22 controls the display of the control microcomputer 3 and the LED display unit 12 that displays the open state of the master breaker 2 by turning on / off the LED based on the display control signal of the control microcomputer 3 as the display control means. The monitor unit 22 is provided with a speaker 15 for notifying an open state of the main breaker 2 by a voice based on a signal, and a fitting groove 33 for fittingly fitting and disengaging the fitting convex portion 31. The fitting groove 33 and the fitting projection 31 are fitted to each other, and the fitting holder 33 is held by the fitting holder 30 so as to be freely fitted and removed.

Further, the configuration of the control unit 1 and the monitor unit 22 of this embodiment is shown in FIG.
This will be described with reference to the block diagram of (b). The control unit 1 encodes the display control signal from the control microcomputer 3 as the display control means to the driver 11 as the display unit and the voice synthesis unit 13, and frequency-modulates the signal encoded by the encoder 23. An FM transmitter 24 for transmitting to the monitor unit 22 and a transmitting antenna 25 for transmitting a transmitted wave are provided.

The monitor unit 22 serves as a reception antenna 28 for receiving the transmission wave transmitted from the control unit 1 and a radio signal receiving means for demodulating the reception wave received by the reception antenna 28 and outputting it to the decoder 26. The FM receiving unit 27, a decoder 26 that decodes an output signal of the FM receiving unit 27 and outputs a display control signal from the control microcomputer 3 to the driver 11 or the voice synthesizing unit 27 to the buffer 29, and is input via the buffer 29. Driver 11 for displaying the open state of the master breaker 2 on the LED display unit 12 based on the display control signal of the control microcomputer 3
And a voice synthesizing section 13 for synthesizing the open state of the master breaker 2 with a voice signal based on the display control signal of the control microcomputer 3 input via the buffer 29, and an amplifier for amplifying the output signal of the voice synthesizing section 13. 14, a speaker 15 for outputting the open state of the main breaker 2 by voice based on the output signal of the amplifier 14, and a DC power supply 7 for supplying operating power to each component of the monitor unit 22.

Since the monitor unit 22 is provided separately from the distribution board body 20 and receives the display control signal wirelessly from the control unit 1 arranged in the distribution board body 20, the monitor unit 22 is The arrangement of the monitor unit 22 can be freely changed, and the usability of the monitor unit 22 can be improved. Since the configuration and operation of the control unit 1 other than the part related to wireless transmission are the same as those of the first or second embodiment, the description thereof will be omitted. (Fifth Embodiment) In the first embodiment, the current transformer 16 is provided in the power supply line of the main breaker 2 including the earth leakage breaker, and the magnitude of the current flowing through the main breaker 2 is measured and displayed. However, in the present embodiment, A current transformer 16 is provided for each branch breaker provided by branching from the main breaker 2, and the magnitude of the current flowing through each branch breaker is measured and displayed.

The control unit 1 of this embodiment is
As shown in FIG. 11, a main breaker 2 composed of an earth leakage breaker, a control unit 1 for opening a main breaker 2 by detecting a power failure after detecting an earthquake with a predetermined seismic intensity or a power recovery after the power failure, and a main trunk The control unit 1 includes a plurality of branch breakers 39 branched from the breaker 2 and a current transformer 16 provided to measure the magnitude of the current flowing through each branch breaker 39.
Is the branch breaker 3 as shown in the block diagram of FIG.
A current detection unit 9 for detecting the magnitude of the current flowing through the branch breaker 39 by using the current transformers 16 provided in each of the 9 and a display control signal of the control microcomputer 3 as display control means. Based on the magnitude of the current flowing through each branch breaker 39, the LED display unit 12
And the driver 11 displayed on the display.

Therefore, it is possible to easily grasp the used current value at each demand place from the magnitude of the current flowing through each branch breaker 39. Since the configuration and operation of the control unit 1 other than the current detection unit 9 and the current transformer 16 are the same as those of the first or second embodiment, the description thereof will be omitted. (Sixth Embodiment) FIG. 12 shows a block diagram of a circuit breaker with a seismic sensing function according to the present embodiment.

The control unit 1, which is a circuit breaker with seismic function, converts the AC 100V commercial AC power source 17 input from the power source side of the main breaker 2 into the operating voltage of each part and supplies it, and the DC power source 7 A seismic sensor 5 that detects vibration and generates a signal according to the magnitude of the vibration;
A setting switch 10 for setting a threshold value of seismic intensity and an output signal of a seismic sensor 5 as an earthquake detecting means are compared with a threshold value of the setting switch 10 to detect the occurrence of an earthquake, and as a power failure detecting means, for example, a DC power source. The power failure of the commercial AC power supply 17 is detected from the output voltage of 7 and the power recovery after the power failure is detected from the output voltage of the DC power supply 7 and the power failure detection information as power recovery detection means, and each of the earthquake, the power failure, and the power recovery. A control microcomputer 3 that outputs a control signal for forcibly opening the main breaker 2 as a control signal output means based on the detected information, and a pseudo leakage occurs when a control signal is input from the control microcomputer 3 to force the main breaker 2 And a breaker trip circuit 4 for opening the contacts. Further, the control unit 1 uses the current transformer 16 to detect the magnitude of the current flowing through the main breaker 2 and outputs the detection result to the control microcomputer 3, and the control microcomputer 3 as display control means.
Main breaker 2 based on the display control signal input from
Driver 11 for displaying the magnitude of the current flowing through it and the open state of the main breaker 2 on the LED display section 12 which is an indicator.
And a voice synthesizer 1 which is a voice output device for synthesizing the transmission contents by voice in order to transmit the open state of the master breaker 2 by voice based on the display control signal input from the control microcomputer 3.
3, an amplifier 14 that amplifies the audio signal synthesized by the audio synthesizer 13, and a speaker 15 that outputs the audio signal amplified by the amplifier 14.

Further, the control unit 1 uses the backup power source 40 composed of a battery and the DC power source 7 as the operating power source of the control unit 1 when the commercial power source 17 fails.
A switching circuit 41 for switching from the output voltage of 1 to the backup power supply 40, and an EEPROM 6 for the control microcomputer 3 to save each detection information such as earthquake, power failure, and power recovery.
In this embodiment, since the battery is used as the backup power supply 40, the backup power supply 40 can be downsized as compared with the case where a capacitor is used.

Here, when the control microcomputer 3 detects the occurrence of an earthquake, the second timer 8b, which is a timer means, detects, for example, 4 times.
The control microcomputer 3 operates the commercial power source 17 until the second timer 8b finishes the time-delaying operation for 8 hours.
When detecting the power failure of the
When the power is restored, a control signal is output to the breaker trip circuit 4, and the breaker trip circuit 4 trips the master breaker 2. Although the time limit of the second timer 8b is set to 48 hours, it is not intended to be limited to 48 hours, and may be set to a time such that there is no fear of a secondary disaster after the occurrence of an earthquake. .

When the control microcomputer 3 detects a power failure of the commercial power source 17, the third timer 8c performs a time-delaying operation of, for example, 8 seconds, and the control is performed until the third timer 8c finishes the time-delaying operation. When the microcomputer 3 detects an earthquake, the control microcomputer 3 outputs a control signal to the breaker trip circuit 4 when the commercial power supply 17 is restored, and the breaker trip circuit 4 trips the master breaker 2. The third timer 8
Although the time limit time of c is set to 8 seconds, the time limit time of the third timer 8c is not limited to 8 seconds, and it goes without saying that it may be set to a value other than 8 seconds. .

On the other hand, the fourth timer 8d times, for example, 24 hours and counts up every 24 hours (one day). When the count value of the fourth timer 8d reaches 30 days,
The control microcomputer 3 as a remaining amount detecting means detects the remaining battery amount of the backup power source 40 every 30 days. When the control microcomputer 3 detects the battery remaining amount of the backup power source 40 and the battery remaining amount of the backup power source 40 falls below a predetermined value, the control microcomputer 3 informs the LED display unit 1 which is a notification means.
2 is turned on to notify the householder that the remaining amount of the backup power supply 40 is low, and the first timer 8a is caused to start the time-delaying operation of, for example, 22 hours. Then, the first timer 8a
When the time limit operation ends, the control microcomputer 3 notifies the housekeeper by voice using the voice synthesizing unit 13 that is a notification unit until the backup power supply 40 is replaced every 22 hours until the remaining battery level decreases. . Although the count value of the fourth timer 8d is set to 30 days in the present embodiment, it is not intended to limit the count value to 30 days, and the count value of the fourth timer 8d is set to 10 days. The battery remaining amount of the backup power source 40 may be detected every 10 days by setting.
Further, although the time limit time of the first timer 8a is set to 22 hours, this is not intended to limit the time limit time of the first timer 8a to 22 hours, and the time limit time of the first timer 8a is set to 11 hours. The time may be set, and the decrease in the battery level may be notified every 11 hours.

The operation of this control unit 1 is shown in FIG.
The time chart of FIG. 4 and the flowcharts of FIGS. As shown in FIG. 14, times t _{1 to} t ₂
If an earthquake that exceeds a specified threshold occurs during that time, time t
_{During the} period from ₂ to time T ₁ (for example, 3 minutes) or until the family member evacuates, the control microcomputer 1 uses the voice synthesizing unit 13 to synthesize a voice such as “turn off the breaker when evacuating”. It is amplified by the amplifier 14 and output from the speaker 15 to inform the family member to disconnect the breaker at the time of evacuation.

After that, when the commercial power supply 17 fails at time t ₃ and the commercial power supply 17 recovers at time t ₄ , the control microcomputer 3 detects the recovery of the commercial power supply 17 and trips the master breaker 2. , From time t ₄ to time T ₂ (for example, 5 minutes) or until the main breaker 2 is turned on, the voice synthesizer 13 is used to indicate, for example, “Electricity has been restored. Please insert the voice, etc., and amplify it with the amplifier 14.
Output from 5 and notify the family members of the power recovery.

By the way, when the control unit 1 is turned on or the control unit 1 is reset, as shown in FIG. 15, first, an initial routine L ₁ for performing initialization and the like is performed, and then a backup is performed. A battery remaining amount detection routine L ₂ for detecting the remaining amount of the power source 40 is performed, and then an earthquake / power failure detection routine L ₃ for detecting occurrence of an earthquake or power failure is performed.

Initial routine L₁Then, as shown in FIG.
Whether the control unit 1 is powered on,
Controls when the battery of the backup power supply 40 is replaced
The microcomputer 3 performs initial settings (step M₁), EEP
Read data from ROM6 (step M₂). EEP
Data indicating the occurrence of an earthquake or power failure has been saved in ROM6
Control microcomputer 3 to breaker trip circuit 4 if
The control signal is output and the breaker trip circuit 4 is
Trip 2 (Step M_Four), Voice synthesis unit 1
For example, using "3," Electricity has been restored.
Please check all and put in the breaker. "
A message to inform is synthesized by voice and increased by amplifier 14.
And output from the speaker 15 (step
M_Five). Step M₆So, for example, current transformer 16
Whether the main breaker 2 was turned on again from the current flowing through
If the main breaker 2 is not turned on,
Step M_FourReturn to, and main breaker 2 is turned on again.
Then, the control microcomputer 3 uses the voice synthesizer 13 to
Output voice for 5 minutes every 0 seconds (Step M_Five). Master
When the breaker 2 is turned on, the control microcomputer 3 is EEPR
Erase the data of OM6 (Step M₇), 2nd and 2nd
3 timers 8b and 8c are reset (step
M ₈), Battery level detection routine L₂Terminal B_ThreeMigrate to
You.

On the other hand, step M_ThreeAnd control microcomputer 3 is E
As a result of reading the data in the EPROM 6, the EEPROM
If the data is not saved in 6, that is, an earthquake or
If there is no power failure, the control microcomputer 3
Up M₈Then, the process similar to the above is performed. Battery level
Detection routine L_TwoThen, as shown in FIG.
The controller 3 sets the voltage of the backup power supply 40 to a predetermined threshold value.
(Eg, about 8V) (Step M₉),back
If the voltage of the up power supply 40 is 8 V or more, for example, 24
Counting of the fourth timer 8d that counts up every hour
Start the operation (Step M _Ten), Step M₁₁At first
The timer 8d of No. 4 counts, and the step M₁₂so
Determine whether the count value of the fourth timer 8d is 30 days
You.

[0053] If the count value of the fourth timer 8d is less than 30 days, (step M ₁₄₎ as the control microcomputer 3 flag f ₁ 0, the terminal B ₄ of the earthquake, a power failure detection routine L ₃
The control microcomputer 3 detects an earthquake or power failure.
On the other hand, when the count value of the fourth timer 8d is 30 days,
Control microcomputer 3 resets the fourth timer 8d (step M _13), the voltage of the backup power supply 40 is compared whether or 8V (step M _15). Backup power supply 4
If the voltage of 0 8V or more, the process returns to step M _10, again, the control microcomputer 3 to start the counting operation of the fourth timer 8d. When the voltage of the backup power supply 40 is less than 8V, the control microcomputer 3 outputs a display control signal to the driver 11, and the driver 11 turns on the LED display unit 12 to notify the housekeeper of the battery replacement based on the display control signal. (Step M ₁₆ ), the control microcomputer 3 uses the voice synthesizing section 13 to synthesize a voice notification message, such as “Battery has expired. Replace the battery”, and amplifies it with the amplifier 14. The speaker 15 is made to output three times, for example, every 10 seconds (step M ₁₇ ).

The control microcomputer 3 has a time limit of about 2
To start the time limiting operation of the first timer 8a set to 2 hours (step M _18). In step M ₁₉ , the control microcomputer 3 determines whether or not the time-limit operation of the first timer 8a has ended. If the time-limit operation of the first timer 8a has ended, the control microcomputer 3 uses the voice synthesizer 13 A message notifying the battery replacement is output from the speaker 15 (step M
_20), a first timer 8a is reset (step M _21), the battery is judged whether or not exchanged (Step M _22). Here, if the battery is not replaced, the process returns to step M _17, until the battery is replaced, the control microcomputer 3
Performs voice output using the voice synthesizer 13 in accordance with the above loop. If the battery is replaced, the process returns to the terminal B ₁ of the initial routine L _1, performs the processing of the initial routine L _1.

Step M₁₉The first timer 8a is timed
As a result of determining whether or not the work is finished, the first timer 8a
If the battery continues to operate for a limited time, check whether the battery has been replaced.
Judge (Step M_{twenty three}), If the battery is replaced,
Term routine L₁Terminal B₁Return to the initial routine L₁of
Perform processing. If the batteries have not been replaced,
Con 3 is flag f₁Is set to 1 (step M_{twenty four}),earthquake
・ Power failure detection routine L _ThreeTerminal B_FourTo an earthquake or stop
To detect electricity.

As described above, in this embodiment, the control microcomputer 3 detects the remaining battery level of the backup power source 40, for example, every 30 days, and when the remaining battery level of the backup power source 40 falls below a predetermined value, the battery is replaced. The control microcomputer 3 is an LED
The display informs the householder that the battery level is low,
For example, every 22 hours, voice output is used to notify the householder of the decrease in the battery level. Here, since the control microcomputer 3 outputs the voice every 22 hours, and the time zone in which the voice is output every time is shifted, even if there is no home when the voice is output, there is a home someday. The voice output can be performed during the time zone, and the householder can be notified of the low battery level.

Next, in the earthquake / blackout detection routine L ₃ ,
As shown in FIG. 18, the process proceeds from the terminal B ₄ to step M ₂₅ , and the control microcomputer 3 detects whether or not the power failure of the commercial power source 17 has occurred. When the control microcomputer 3 detects a power failure of the commercial power supply 17, the control microcomputer 3 uses the switching circuit 41 to switch the operating power supply of the control unit 1 from the DC power supply 7 to the backup power supply 40 (step M ₂₆ ). to start the time limiting operation of the third timer 8c which is set to approximately 8 seconds (step M _27).

In step M ₂₈ , the control microcomputer 3 determines whether or not the time-delayed operation of the third timer 8c has ended, and the third
If the timer 8c has not finished the timed operation, the control microcomputer 3 detects whether or not an earthquake has occurred (step M ₂₉ ). If the control microcomputer 3 does not detect an earthquake,
Returning to step M ₂₈ , the control microcomputer 3 sets the third timer 8
It is determined whether or not the timed operation of c has ended. On the other hand, when the control microcomputer 3 detects an earthquake, the control microcomputer 3 returns E
Data indicating that an earthquake and a power failure have occurred is saved in the EPROM 6 (step M ₃₀ ), the power supply from the backup power supply 40 is stopped using the switching circuit 41 (step M ₃₁ ), and the operation ends. After that, when the commercial power supply 17 is restored, the control microcomputer 3 executes the EE in the initial routine L _1.
When the data indicating the occurrence of the earthquake and the power failure is read from the PROM 6, the control microcomputer 3 outputs a control signal to the breaker trip circuit 4 and causes the breaker trip circuit 4 to trip the master breaker 2.

On the other hand, if it is determined in step M ₂₈ whether or not the time-delaying operation of the third timer 8c has ended, if the time-delaying operation of the third timer 8c has ended, then the procedure advances to step M ₃₁ and the switching circuit. The power supply from the backup power supply 40 is stopped using 41, and the operation ends. In this case, there is no power outage and no earthquake.
No data is written in EPROM6. Therefore, when the commercial power supply 17 is restored, the control microcomputer 3 does not output a control signal to the breaker trip circuit 4, and the main breaker 2 is not tripped.

When the control microcomputer 3 does not detect the power failure of the commercial power source 17 as a result of detecting whether or not the power failure of the commercial power source 17 has occurred in step M ₂₅ , an earthquake occurs in the control microcomputer 3 detecting whether the not (step M _32), if the control microcomputer 3 detects earthquakes, the control microcomputer 3 to initiate the time limiting operation of the second timer 8b which is set to limit the time period for example 48 hours (Step M
₃₃ ), and it is determined whether or not the time-delayed operation of the second timer 8b has ended (step _M34 ). If time limit operation of the second timer 8b has not been completed, the control microcomputer 3 detects whether a power failure of the commercial power supply 17 occurs (step M _35). If the control microcomputer 3 does not detect a power failure of the commercial power supply 17, the process returns to step M _34, and determines whether or not it is completed limit during the operation of the second timer 8b again, the control microcomputer 3 commercial power supply 17 If a power failure is detected, the operating power supply of the control unit 1 is switched from the DC power supply 7 to the backup power supply 40 by using the switching circuit 41 (step M ₃₆ ), the process proceeds to step M ₃₀ , and the same processing as described above is performed. . In this way, if the commercial power supply 17 loses power, for example, within 48 hours after the earthquake, the main breaker 2 is tripped when the commercial power supply 17 is restored, so a fire after the earthquake, etc. It is possible to prevent the secondary disaster. Further, since the control microcomputer 3 stops the power supply from the backup power supply 40 after a lapse of a predetermined time after switching from the DC power supply 7 to the backup power supply 40, consumption of the backup power supply 40 can be reduced, It is possible to make the backup power supply 40 last longer.

On the other hand, as a result of the control microcomputer 3 detecting whether or not an earthquake has occurred in step M ₃₂ , the control microcomputer 3
Does not detect the occurrence of an earthquake, the process proceeds to the terminal B ₅ of the battery remaining amount detection routine L ₂ . Also, until time limit operation of the second timer 8b in step M ₃₄ is completed, if the control microcomputer 3 does not detect the power outage, the control microcomputer 3 by saving data in EEPROM 6, EEP
The data of ROM after clearing (step M _37), the process proceeds to the terminal B ₅ of the battery remaining amount detection routine L _2. In the battery remaining amount detection routine L ₂ , the process moves from the terminal B ₅ to step M _38, and it is determined whether the flag f ₁ is 1 or not. Flag f ₁ is 1
In the case of, that is, when the battery remaining amount of the backup power source 40 is less than the predetermined value, the process proceeds to step M ₁₉ and the flag f ₁ is 1
If not, that is, if the control microcomputer 3 does not detect the battery remaining amount of the backup power source 40, the process proceeds to step M ₁₁ and the above-mentioned processing is performed.

As described above, in this embodiment, even when an earthquake occurs after a power failure, the control microcomputer 3 switches the operating power supply from the DC power supply 7 to the backup power supply 40, and a predetermined time elapses after the power failure. Until now, since the occurrence of an earthquake is detected, even if an earthquake occurs after a power outage,
The main breaker 2 can be reliably tripped when the commercial power source 17 is restored.

FIG. 13 shows a schematic block diagram of this circuit breaker with seismic sensing function. The control unit 1 converts the commercial power supply 17 input from the power supply side of the main breaker 2 into an operating voltage for each part and supplies the DC power supply 7, and the current transformer 16 provided on the load side of the main breaker 2 to the main breaker 2 The power supply box 1a includes a current detection unit 9 that detects a current flowing through the power supply box 1a, and a main body 1b including an LED display unit 12 and a speaker 15. Since the main body 1b is connected to the power supply box 1a via an electric wire, the main body 1b can be detachably attached to the distribution board for a house.

The main body 1b includes a changeover switch 42 for setting presence / absence of a limiter of the main breaker 2 used, a setter 43 for setting a rated current, and an LED for displaying the rated ratio of the current flowing through the main breaker 2 by LED. Display unit 12a
And the LED 12 indicating that the remaining amount of the backup power source 40 has decreased.
b and the LED 12c which indicates the energization state of the commercial power source 17 by detecting the energization of the commercial power source 17 from the voltage of the DC power source 7, for example.
And the speaker 15 are disposed on the front surface. This rated current is set to the rated current of the limiter when the main breaker 2 has a limiter, and is set to match the rated current of the main breaker 2 when the main breaker 2 does not have a limiter.

Here, when the current detection unit 9 detects the current flowing through the main breaker 2 using the current transformer 16, the control microcomputer 3 obtains the rated ratio of the used current from the detection result of the current detection unit 9, and the driver 11 The LED display unit 12 is used to display the rated ratio of the used current as a percentage. Then, when the used current exceeds the rated value, the control microcomputer 3 uses the voice synthesizer 13 to say, for example, "overuse of electricity".
Such a voice is synthesized, amplified by the amplifier 14 and output from the speaker 15 to inform the householder that the current used exceeds the rated value.

When the control microcomputer 3 detects that the remaining amount of the backup power source 40 has decreased, it causes the driver 12 to turn on the LED 12b and causes the voice synthesizer 13 to output a voice from the speaker 15. Further, the control microcomputer 3 detects the applied voltage on the power source side of the main breaker 2 to detect the supply state of the commercial power source 17, and when the commercial power source 17 is supplied, turns on the LED 12c.

Since the configuration other than the first to fourth timers 8a to 8d, the backup power source 40 and the switching circuit 41 is the same as that of the first embodiment, the description thereof will be omitted.

[0068]

According to the invention of claim 1, as described above, the earthquake detecting means for detecting the occurrence of the earthquake having the predetermined seismic intensity, the power failure detecting means for detecting the power failure of the commercial power supply, and the earthquake detecting means are the earthquake. Control signal output means for outputting a control signal when the power failure detection means detects a power failure of the commercial power source after detecting the occurrence of the occurrence of the power generation, and a force opening means for forcibly opening the breaker when the control signal of the control signal output means is input. Since it has
Power is supplied to the load from the occurrence of an earthquake until the occurrence of a power outage, and equipment and devices useful for evacuation of homes such as automatic doors and telephones are activated. There is an effect that the power supply to the power source is cut off to prevent the occurrence of secondary disaster such as fire and electric shock.

According to the invention of claim 2, an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power source, and a power recovery detecting means for detecting a power failure of the commercial power source. And a control signal output means for outputting a control signal when the power recovery detection means detects a power recovery of the commercial power source after the power failure detection means detects a power failure of the commercial power supply after the earthquake detection means detects the occurrence of an earthquake, and a control signal It is equipped with a forced opening means that forcibly opens the breaker when a control signal from the output means is input, so even if an earthquake occurs, power will be supplied to the load and automatic doors and After activating evacuation facilities such as telephones and other equipment, and starting power supply after a power outage, the power supply to the load is cut off to prevent a secondary disaster such as fire or electric shock. There is an effect of doing.

According to the invention of claim 3, an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power supply, and a power recovery detecting means for detecting a power recovery of the commercial power supply. Then, after the earthquake detection means detects the occurrence of an earthquake and the power failure detection hand throw detects the power failure of the commercial power source,
The power recovery detection means includes a control signal output means for outputting a control signal when the power recovery of the commercial power source is detected, and a force opening means for forcibly opening the breaker when the control signal of the control signal output means is input. Therefore, even if an earthquake occurs after a power failure, there is an effect that the power supply of the commercial power supply can be reliably cut off when the commercial power supply is restored.

According to the invention of claim 4, the earthquake detecting means is provided with timer means for timing a fixed time after detecting the occurrence of the earthquake, and the power failure detecting means detects the power failure of the commercial power source during the time-limit operation of the timer means. If the control signal output means outputs the control signal only when the earthquake occurs and the breaker does not shut off even if a power failure or power recovery occurs after a certain period of time, the malfunction of the distribution board for the house There is an effect that can prevent.

According to the invention of claim 5, since the breaker is provided with the display section for displaying the state in which the breaker is forcedly opened by the forced opening means, the family member can easily grasp the breaker's open state, The effect is that the breaker can be turned on again. According to a sixth aspect of the present invention, there is provided a display control section for separately transmitting a display control signal for wirelessly transmitting a display control signal for wirelessly transmitting a display control signal for receiving the display control signal. Since it is provided, there is an effect that the mounting position of the display unit can be easily changed and the usability of the display unit can be improved.

Since the invention of claim 7 is provided with the EEPROM in which the detection information of the earthquake detecting means and the power failure detecting means is written, there is an effect that the cause of the contact opening of the breaker can be easily grasped when the power is restored after the power failure. . In addition, EE at the time of power failure
Since the writing power source of the PROM uses the residual voltage of the smoothing capacitor provided in the DC power source, there is also an effect that it is not necessary to newly provide a writing power source such as a battery.

According to the invention of claim 8, when the earthquake detecting means detects an earthquake before the power failure detecting means detects the power failure of the commercial power source, the commercial power source outputs the earthquake and power failure detecting information.
When the earthquake detection means detects the earthquake after the power failure detection means detects the power failure of the commercial power supply, the commercial power supply is switched to the backup power supply, and the earthquake and power failure detection information is written in the EEPROM. , EE each detection information at the time of power failure of commercial power supply
It can be stored in the PROM.

According to the invention of claim 9, the backup power source is
Since the power supply is stopped after a lapse of a certain time after the switching, the consumption of the backup power supply can be reduced, and the backup power supply can be used for a long time. According to a tenth aspect of the present invention, the backup power source is composed of a battery, the remaining amount detecting means for detecting the remaining amount of the battery, and the remaining amount of the battery when the remaining amount detecting means detects that the remaining amount of the battery is below a predetermined value. Since the notifying means for notifying the shortage is provided, it is possible to inform the householder of the shortage of the remaining battery level, and the battery can be replaced before the remaining battery level is exhausted.

According to the invention of claim 11, since the remaining amount detecting means detects the remaining amount of the battery at every predetermined time, there is an effect that the insufficient remaining amount of the battery can be accurately grasped. In the twelfth aspect of the present invention, the notifying means is composed of an indicator for displaying a shortage of the remaining amount of the battery and an audio output device for outputting a voice indicating the shortage of the remaining amount of the battery. The effect is that the householder can be informed easily and the battery can be replaced before the battery is exhausted.

In the thirteenth aspect of the present invention, since the voice output device outputs a voice indicating that the remaining battery level is insufficient at predetermined time intervals, it is possible to reliably notify the householder of the insufficient battery level, and the remaining battery level is indicated. There is an effect that the battery can be replaced before the battery runs out. According to the invention of claim 14, the earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, the power failure detecting means for detecting a power failure of the commercial power source, and the power failure detecting means after the earthquake detecting means detects the occurrence of the earthquake. A sense consisting of control signal output means for outputting a control signal when a power failure of the commercial power source is detected, and forced opening means for forcibly opening the main breaker interposed in the commercial power source when the control signal of the control signal output means is input. The circuit breaker with seismic function, the first branch breaker electrically connected to the load side of the main breaker, and the second branch breaker electrically connected to the power supply side of the main breaker.

Further, the invention of claim 15 is an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of the commercial power supply, and a power recovery for detecting the power recovery of the commercial power supply. A detection means and a control signal output means for outputting a control signal when the power recovery detection means detects a power recovery of the commercial power supply after the power failure detection of the commercial power supply of the power failure detection means after the earthquake detection means detects the occurrence of an earthquake, Circuit breaker with seismic function consisting of forced opening means that forcibly opens the main breaker that is interposed in the commercial power supply when the control signal from the control signal output means is input, and is electrically connected to the load side of the main breaker First done
No. 2 branch breaker and a second branch breaker electrically connected to the power source side of the main breaker.

Further, the invention of claim 16 is an earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power source, and a power recovery for detecting a power recovery of the commercial power source. After the detection means and the earthquake detection means detect the occurrence of an earthquake and the power failure detection throw detects the power failure of the commercial power supply, the power recovery detection means outputs a control signal when the power recovery of the commercial power supply is detected. Means and a circuit breaker with a seismic-sensing function consisting of a forced opening means for forcibly opening the main breaker interposed in the commercial power source when a control signal from the control signal output means is input, and an electric circuit is connected to the load side of the main breaker. A first branch breaker electrically connected to the main breaker and a second branch breaker electrically connected to the power source side of the main breaker, and the forced opening means as in the invention of claims 14 and 15. Is the first branch blur Even after opening the mosquito, it is possible to supply power to the load via a second branch breakers,
If a lighting device is connected to the second breaker, indoor lighting can be secured even after an earthquake occurs, and there is an effect that a house person can easily evacuate.

According to the seventeenth aspect of the present invention, since the circuit breaker with seismic function is detachably attached, there is an effect that the circuit breaker with seismic function can be attached at a convenient position. According to the eighteenth aspect of the invention, since the current display means for displaying the magnitude of the current flowing through the main breaker is provided, there is an effect that the total power consumption can be easily grasped.

According to the nineteenth aspect of the invention, since the individual current display means for displaying the magnitude of the current flowing through the first branch breaker for each individual first branch breaker is provided, the power consumption at each demand place The effect is that the user can easily grasp

[Brief description of the drawings]

FIG. 1 is a block diagram showing a control unit according to a first embodiment.

FIG. 2 (a) is a partially omitted configuration diagram showing the above-mentioned residential distribution board. (B) It is a block diagram which a part of the above can be abbreviate | omitted. (C) It is a circuit diagram which a part of the above can be omitted.

FIG. 3 is a flowchart of the above.

FIG. 4 is a flowchart showing a second embodiment.

FIG. 5 is a partially omitted configuration diagram showing the above-mentioned residential distribution board.

FIG. 6 is a configuration diagram showing a residential distribution board according to a third embodiment.

FIG. 7 is an exploded perspective view showing a residential distribution board according to a fourth embodiment.

FIG. 8 is an exploded perspective view showing the above monitor unit.

FIG. 9A is a block diagram showing a control unit of the above. (B) It is a block diagram which shows a monitor unit same as the above.

FIG. 10 is a block diagram showing a control unit according to a fifth embodiment.

FIG. 11 is a configuration diagram showing the above-mentioned residential distribution board.

FIG. 12 is a block diagram showing a control unit according to a sixth embodiment.

FIG. 13 is a schematic configuration diagram of a system using the control unit of the above.

FIG. 14 is a time chart showing the same operation.

FIG. 15 is a flowchart showing the overall operation of the above.

FIG. 16 is a flowchart showing an initial routine of the above.

FIG. 17 is a flowchart showing a battery remaining amount detection routine of the same.

FIG. 18 is a flowchart showing an earthquake / power failure detection routine of the above.

FIG. 19 is a block diagram showing a conventional example.

[Explanation of symbols]

 1 control unit 2 earth leakage breaker 3 control microcomputer 4 breaker trip circuit 5 seismic sensor 8 timer 10 setting switch 12 LED display section 15 speaker

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yu Ogino 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) In Hitoshi Makinaga, 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works Co., Ltd. (72) Inventor Masataka Kanda 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Kazuhisa Takahashi, 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Co., Ltd. (72) Inventor, Takeshi Tanaka Osaka Inside the company, Matsushita Electric Works Co., Ltd.

Claims (19)

[Claims] 1. An earthquake detecting means for detecting an occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power source, and a power failure detecting means after the earthquake detecting means detects an earthquake. Control signal output means for outputting a control signal when a power failure of the commercial power source is detected, and forced opening means for forcibly opening the breaker when a control signal of the control signal output means is input are provided. Circuit breaker with seismic function. 2. An earthquake detecting means for detecting an occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power source, a power recovery detecting means for detecting a power recovery of the commercial power source, and the earthquake. Control signal output means for outputting a control signal when the power recovery detection means detects power recovery of the commercial power supply after the power failure detection of the commercial power supply by the power failure detection means after the detection means detects the occurrence of an earthquake; A circuit breaker with seismic function, comprising: forced opening means for forcibly opening the breaker when a control signal from the control signal output means is input. 3. An earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power source, a power recovery detecting means for detecting a power recovery of the commercial power source, and the earthquake. Control signal output means for outputting a control signal when the power recovery detection means detects the power recovery of the commercial power source after the detection means detects the occurrence of an earthquake and the power failure detection throw detects the power failure of the commercial power source. And a circuit breaker with a seismic-sensing function, characterized in that the circuit breaker includes a forced opening means for forcedly opening a breaker when a control signal from the control signal output means is input. 4. The earthquake detecting means comprises a timer means for time-delaying a fixed time after detecting the occurrence of an earthquake, and the power failure detecting means detects a power failure of the commercial power supply during the time-delaying operation of the timer means. 4. The circuit breaker with seismic function according to claim 1, wherein the control signal output means outputs a control signal only. 5. The circuit breaker with seismic sensing function according to claim 1, further comprising a display section for displaying a state in which the breaker has been forcedly opened by the forced opening means. 6. A display control section for wirelessly transmitting a display control signal for controlling the display section, wherein the display section having a radio signal receiving means for receiving the display control signal transmitted by radio is provided separately. The circuit breaker with seismic sensing function according to claim 4, wherein the circuit breaker is provided. 7. The circuit breaker with seismic function according to claim 1, further comprising an EEPROM in which detection information of the earthquake detecting means and the power failure detecting means is written. 8. When the earthquake detecting means detects an earthquake before the power outage detecting means detects an outage of the commercial power source, the commercial power source writes the earthquake and power outage detection information in the EEPROM, and When the earthquake detection means detects an earthquake after the power failure detection means detects the power failure of the commercial power supply, the commercial power supply is switched to a backup power supply, and the earthquake and power failure detection information is written in the EEPROM. The circuit breaker with seismic function according to claim 7. 9. The circuit breaker with seismic function according to claim 8, wherein the backup power supply stops the power supply after a lapse of a certain time after being switched. 10. The backup power source comprises a battery,
A remaining amount detecting means for detecting the remaining amount of the battery, and an informing means for informing the insufficient remaining amount of the battery when the remaining amount detecting means detects that the remaining amount of the battery becomes a predetermined value or less are provided. The circuit breaker with seismic function according to claim 8 or 9, characterized in that. 11. The circuit breaker with seismic function according to claim 10, wherein the remaining amount detecting means detects the remaining amount of the battery at predetermined time intervals. 12. The informing means comprises a display device for displaying a shortage of the remaining amount of the battery, and a voice output device for outputting a voice of the shortage of the remaining amount of the battery. Alternatively, the circuit breaker with a seismic function according to item 11. 13. The voice output device outputs a voice indicating that the remaining amount of the battery is insufficient at predetermined time intervals.
Circuit breaker with seismic function described in 2. 14. An earthquake detecting means for detecting the occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power source, and the power failure detecting means after the earthquake detecting means detects the occurrence of an earthquake. Control signal output means for outputting a control signal when detecting a power failure of the commercial power supply; and forced opening means for forcibly opening the main breaker interposed in the commercial power supply when the control signal of the control signal output means is input. A circuit breaker with seismic function, a first branch breaker electrically connected to the load side of the main breaker, and a second branch breaker electrically connected to the power supply side of the main breaker. A residential distribution board characterized by comprising: 15. An earthquake detecting means for detecting an occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power supply, and a power recovery detecting means for detecting a power recovery of the commercial power supply.
Control signal output means for outputting a control signal when the power recovery detection means detects a power recovery of the commercial power supply after the power failure detection means detects a power failure of the commercial power supply after the earthquake detection means detects the occurrence of an earthquake. , A circuit breaker with a seismic function comprising a forced opening means for forcibly opening a main breaker interposed in the commercial power source when a control signal of the control signal output means is input, and a load side of the main breaker. A distribution board for a house, comprising a first branch breaker electrically connected and a second branch breaker electrically connected to a power source side of the main breaker. 16. An earthquake detecting means for detecting an occurrence of an earthquake having a predetermined seismic intensity, a power failure detecting means for detecting a power failure of a commercial power source, and a power recovery detecting means for detecting a power recovery of the commercial power source.
A control signal that outputs a control signal when the power recovery detection means detects power recovery of the commercial power supply after the earthquake detection means detects the occurrence of an earthquake and the power failure detection hand throw detects power failure of the commercial power supply. A seismic sensitive circuit breaker comprising an output means and a forced opening means for forcibly opening the main breaker interposed in the commercial power source when a control signal from the control signal output means is input, and the main breaker A residential distribution board comprising a first branch breaker electrically connected to a load side and a second branch breaker electrically connected to a power source side of the main breaker. 17. The circuit breaker with seismic function is detachably attached.
5 or 16 residential distribution board. 18. The residential distribution board according to claim 14, 15, 16 or 17, further comprising current display means for displaying a magnitude of a current flowing through said main breaker. 19. An individual current display means for displaying the magnitude of the current flowing through the first branch breaker for each individual first branch breaker.
15, 16 or 17 residential distribution board.