JP2009206069A - Outlet box with abnormal condition detecting mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety management system for power supply outlet box unit installed exteriorly since further safety management during power feeding is required in consideration of that troubles such as electricity stealing or mischief happen and outdoor charging increases in response to popularization of electric vehicles. <P>SOLUTION: In this outlet box, a breaker 2 is mounted in a waterproof box with a lock or capable of being mounted with a lock, a switch and the outlet are mounted on a load side of the breaker, and an abnormal condition detecting device, an alarm device 9 and an informing device are prepared as monitoring devices. When any trouble happens upon charging an electric vehicle or being connected to an electric appliance or feeding power to it through a plug inserted into the outlet, abnormal condition is detected, display light is lighted and alarm sound is sounded. Further, such the trouble is informed to a controller locating apart. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to the ability to safely manage the charging of an electric vehicle and the use of electric appliances in a commercial AC power outlet (hereinafter referred to as an outlet) facility installed outdoors.

  Conventionally, when installing a commercial AC power outlet at home outdoors, the outlet body has an integrated power plug blade receiver and a ground terminal for connecting the ground wire, and covers it to prevent rainwater from entering inside. There is provided a switch-type waterproof outlet that can be turned on / off without plugging / unplugging the power plug into / from the waterproof outlet. (For example, Patent Document 1)

Also, a box in which the breaker is housed, a cover that covers the opening of the box, a handle that is provided on the cover and that performs NO / OFF operation of the breaker, and a plug that is plugged into the outlet by simultaneous operation There is provided an apparatus provided with a restricting means for restricting insertion / extraction of the device. (For example, Patent Document 2)

  Japanese Laid-Open Patent Publication No. 2004-39399   Japanese Laid-Open Patent Publication No. 2001-76823

However, the conventional waterproof outlet and outlet box have the following problems.
In patent document 1, if it is installed in a place where an outside person can easily go in and out, safety management cannot be performed due to mischief or power theft.
In Patent Document 2, a short circuit or leakage occurs during power supply, and the breaker cannot immediately report the interruption state due to operation. In addition, problems occur when locking the plug.
Furthermore, in Patent Documents 1 and 2, when charging electric appliances that are used for a long time, charging electric vehicles that are rapidly progressing, and hybrid vehicles, it is possible to change the state of energization for a long time outdoors, especially in places where others can easily enter. It is difficult to manage the occurrence of trouble.

  Therefore, the present invention safely manages troubles such as a short circuit, electric leakage, cable disconnection, and power theft in power supply by an outdoor power outlet, and immediately notifies the administrator when it occurs.

  In order to achieve the above object, the present invention attaches an earth leakage breaker combined with a circuit breaker (hereinafter referred to as an earth leakage breaker) in a lockable box, and provides an outlet facility, an abnormality detection device, an alarm on the load side of the earth leakage breaker. A device and an external notification device for reporting an alarm to an external administrator will be provided. When power is supplied to the load by inserting a plug into the outlet, when a trouble such as a short circuit or leakage occurs and the earth leakage breaker operates and shuts off, the abnormality detection device detects the breaking and issues an alarm from the alarm device. It is characterized by being able to report to.

  When a wireless transmitter is provided in the external notification device and the abnormality detection device detects an abnormality such as a short circuit or leakage, an abnormality detection signal is transmitted from the wireless transmitter. When the wireless receiver receives the abnormality detection signal, the wireless receiver can issue an alarm from the wireless receiver to manage the power-supplied lock outlet box at a remote location.

Provide a connection signal detection device in the outlet box with lock on the power supply side,
A connection signal transmission circuit is provided in each of the power receiving side connection portions. The output of the connection signal detection device is connected to the input of the abnormality detection device. In addition, a connection signal transmission circuit is provided in the power supply plug device that supplies power to the load at one end of the corded plug that plugs into the outlet in the lock outlet.
Therefore, when a dangerous state of separation, cable disconnection, or poor contact occurs between the outlet in the lock outlet box and from the plug for power supply to the connection of the power plug device, the lock Through the connection signal detection device in the outlet box, the abnormality detection device detects that the connection signal has been interrupted, and the alarm device issues an alarm so that various troubles can be managed.

  Since the present invention is configured as described above, the following effects can be obtained.

  According to the first aspect of the present invention, the abnormality detection mechanism type outlet box according to the present invention is short-circuited while feeding electric power for a long time of an electric vehicle or a hybrid vehicle in an unreachable place or using an electric appliance. When troubles due to electric leakage, faults between cables occur, an alarm is issued immediately, and a further remote manager is notified, so that it is possible to avoid a dangerous state.

    According to invention of Claim 2, installation of a wireless receiver can be chosen freely by the communication function by the wireless signal of a wireless transmitter-receiver apparatus. Moreover, since it can be carried, it has the effect of improving management.

  According to the third aspect of the invention, when the connection of the power receiving unit for power supply is disconnected due to various situations, an alarm is immediately issued and a remote notification is given. Therefore, when the connected electric vehicle or the like is moved without permission, when the connecting portion is removed and disconnection occurs, these are immediately judged and an alarm is issued, so that there is an effect of safety management and further prevention of theft.

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

  An embodiment of an abnormality detection mechanism type outlet box associated with a power outlet facility installed outdoors according to the present invention will be described with reference to the drawings.

  1 and 2 are views of a first embodiment of the present invention. FIG. 1 is a front view of the configuration of each device related to the abnormality detection device inside with the lid of the lock outlet box opened. FIG. 2 is a block diagram of the circuit of the abnormality detection mechanism type outlet box.

Reference numeral 1 denotes a lock outlet box, which includes a lock 33 that locks the lid 11 and the lock outlet box 1. Reference numeral 10 denotes a commercial AC power source that is externally powered. 2 is a circuit breaker combined use earth leakage breaker (hereinafter referred to as an earth leakage breaker).
The commercial AC power supply 10 is connected to the power input side of the earth leakage breaker 2 in the lock outlet box 1 by a cable, and is connected to the outlet 3 via the main power supply SW1 on the load side. Reference numeral 13 denotes a current detection transformer. When a current is detected, a load energization indicator lamp, which is an LED of 15, is displayed so as to shine. Reference numeral 14 denotes an outlet voltage indicator lamp that indicates that a voltage is applied to the outlet 3.

  Reference numeral 20 denotes a load of a charging facility or an electric appliance of the electric vehicle, and 19 denotes a plug for supplying power to the load 20. Reference numeral 31 denotes an electric vehicle with the load 20 as an internal car charging device, and 29 car rechargeable batteries, which are composed of 30 motors driven by the rechargeable battery 29.

Reference numeral 4 denotes an abnormality detection device, which is a circuit in which the earth leakage breaker 2 detects an interruption operation due to a short circuit on the load side, earth leakage or the like, and outputs an alarm signal. Reference numeral 16 denotes an alarm light that is turned on simultaneously. An alarm volume device 5 is a device for amplifying the volume of the alarm sound and adjusting the volume level. Reference numeral 9 denotes an alarm device that emits an alarm sound according to the level of the alarm signal. .
Reference numeral 6 denotes an external notification device for sending an alarm signal to the outside when an alarm signal is issued from the abnormality detection device 4.

A rechargeable battery 12 is used as a power source for the abnormality detection device 4 and the external notification device 6. A charging device 8 automatically charges the rechargeable battery 12. The charging device 8 inputs the commercial AC power supply 10 branched from the load side of the leakage breaker 2 to the l terminal, rectifies it, connects the output from the t terminal to the v terminal of the input of the rechargeable battery 12, and the potential of the rechargeable battery 12. When the battery drops, it will automatically charge.
Further, the S terminal output of the charging device 8 is input to the input b terminal of the abnormality detection device 4, and the n terminal output of the rechargeable battery 12 is input to the a terminal as the power source of the abnormality detection device 4. The m terminal output of the rechargeable battery 12 is input to the i terminal and the p terminal as a power source for the alarm volume device 5 and the external notification device 6.
SW2 is a power switch of the abnormality detection device 4, SW3 is a power switch of the external notification device 6, and SW4 is an alarm volume power switch. Here, the main power switch SW1 and the secondary power switch SW2 are linked.
The external notification power switch SW3 is turned off when external notification is not required.

Reference numeral 7 denotes an alarm receiving device that receives an alarm signal sent from the notification device 6 and emits an alarm sound. The alarm receiving device 7 constitutes a receiving circuit 7A and an output terminal 7C used when connecting to a sound generating device 7B to a device that emits an alarm sound, or to an amplifying device or an alarm device in the house.
The alarm receiving device 7 is in a state in which the operation is continued for a certain period of time once an alarm operation is performed. Therefore, when the reset switch SWA is pressed, the alarm receiving device 7 is stopped and enters a standby state.

Here, the abnormality detection device 4 in the operating state inputs the voltage from the charging device 8 to the input b terminal of the voltage detection circuit 17 to detect the presence or absence of the voltage, and from the warning output circuit 18 if there is no voltage. A warning signal is output, the warning lamp 16 is turned on from the c terminal, and at the same time, an alarm sound is output from the alarm device 9 via the alarm volume controller 5 from the d terminal. Also, an alarm signal is sent from the e terminal to the j terminal of the external notification device 6 and sent from the k terminal to the x terminal of the external alarm receiving device 7. Therefore, it notifies the remote place.
In the internal circuit of the alarm receiver 7, the x terminal is an input terminal of the receiving circuit 7A, and the output of the receiving circuit 7A is connected to the sound generating circuit 7B. Reference numeral 7c denotes an output terminal which is connected to another amplifying device or the like from the y terminal of the alarm receiving device 7.

Accordingly, as shown in FIGS. 1 and 2 as an example of the vehicle rechargeable battery 29 of the electric vehicle 31, the load 11 is opened to the outlet 3 by opening the cover 11 by unlocking the lock outlet box 1. The plug 19 connected to the automobile 31 is inserted. In this state, the leakage breaker 2 is confirmed to be turned on, and the main power switch SW1 and the secondary power switch SW2 that are linked are turned on. The outlet energization indicator lamp 14 is turned on. Therefore, when the vehicle rechargeable battery 29 of the electric vehicle 31 that is the load 20 starts charging, the load energization indicator lamp 15 is turned on by the current detection transformer 13. When the charging is completed, the current stops and extremely decreases, so that the load energization indicator lamp 15 which is an LED is extinguished to notify the outside.
Since the secondary power switch SW2 is on, the abnormality detection device 4 is always on alert.

In addition, when a problem such as a short circuit or leakage occurs between the plug 20 and the load 20 (or the electric vehicle 31) while the plug 19 is connected to the outlet 3, regardless of energization or non-energization, the leakage breaker 2 operates and shuts off. Since the output voltage of the S terminal of the charging device 8 becomes zero potential due to interruption of the earth leakage breaker 2, the b terminal input of the voltage detection circuit 17 which is the abnormality detection device 4 also becomes zero potential, and the control signal of the voltage detection circuit 17 The alarm output circuit 18 issues an alarm signal to each terminal.
Therefore, the alarm light 16 connected to the c terminal is turned on. The alarm device 9 is driven from the output of the g terminal after the sound volume is adjusted after being input to the f terminal of the alarm sound device 5 connected to the d terminal, and an alarm sound is emitted. The volume can be changed by adjusting the sound of the alarm volume device 5. When the alarm volume power switch SW4 is turned off, no alarm sound is generated.
The e terminal output of the abnormality detection device 4 sends an alarm detection signal to the outside from the k terminal output via the j terminal input of the external notification device 6.

When the alarm receiving device 7 receives an alarm output signal from the x terminal of the external notification device 6 of the abnormality detection mechanism outlet box, the alarm receiving device 7 operates to receive an alarm sound from the sound generating circuit 7B when the receiving circuit 7A receives the output signal. To emit. Once the alarm sound is activated, it continues for a certain time even if the output signal of the external notification device 6 is interrupted. Therefore, when the stop is immediately stopped by pressing the reset switch SWA, the alarm receiving device 7 enters a standby state.
Furthermore, an alarm can be issued over a wide range by connecting to an in-home alarm device or intercom device from the output terminal 7C.

  In the alarm release operation, the alarm is stopped by pressing the reset switch SWA of the alarm receiver 5 shown above. Next, when the lid of the lock outlet box 1 is opened and the secondary power switch SW2 linked to the main power switch SW1 is turned off, the outlet voltage indicator lamp 14 of the main power switch SW1 system is turned off and the load energization indicator lamp 15 is turned on. Turns off when the unit is on. Further, since the secondary power switch SW2 is off, the warning light of the warning light 16 and the warning device 9 can also be stopped, and the plug plug 19 is removed and the rest is checked from the plug plug 19. Further, when the normal plug 19 is pulled out, the same procedure as described above is performed.

Next, second and third embodiments of the present invention will be described with reference to FIGS.
In the description of these embodiments, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.

In the second embodiment of the present invention, FIG. 3 is a block diagram of the second embodiment, and the communication device 6 is a wireless transmitter 60 and the alarm receiver 7 is a wireless receiver 70 based on the configuration of the first embodiment. It is the block diagram of the structure of the part changed into. Therefore, the common part of the block diagram of the first embodiment is omitted.
The main difference from the first embodiment of the present invention is that the external notification device 6 and the receiving device 7 are mainly constituted by a wireless transmitter 60 and a wireless receiver 70. The signal input terminal j1 of the wireless transmitter 60 is connected to the signal output e terminal of the abnormality detecting device 4, and when an alarm signal is input, it is amplified and driven by the transmission circuit 62 via the switching circuit 61 and is transmitted from the output k1 terminal to the f0 frequency. Is transmitted from the transmission antenna 63.

Since the wireless receiver 70 is always operating, the wireless receiving circuit 71 receives the f0 frequency from the receiving antenna 74, amplifies it by the output device 72, and emits an alarm sound. Since the alarm sound continues for a certain time, it can be stopped by pressing the reset button SWB to stop immediately, and the wireless receiver 71 enters a standby state.
The power of the wireless transmitter 60 enters the power input p1 terminal from the power output m terminal of the rechargeable battery 12 through the secondary power switch SW2.

Therefore, with the above configuration, when each switch is in the ON state and the earth leakage breaker 2 is cut off due to short circuit, earth leakage, etc., the abnormality detection circuit 4 detects the abnormality and an abnormality detection alarm signal is output from the signal output e terminal. The signal is sent to the signal input j1 terminal of the wireless transmitter 60. When the alarm signal is input to the wireless transmitter 60, it is amplified and the switching circuit 61 performs a switching operation. After the amplification operation, the alarm signal is transmitted from the transmission circuit 62 and the f0 frequency is transmitted and transmitted from the transmitting antenna.
An alarm signal received from the reception antenna 74 of the wireless receiver 70, tuned and detected by the wireless reception circuit 71, is amplified by the output device 72, and an alarm sound is emitted.
Therefore, since the remote receiver can be freely installed, the management range is expanded. Further, when the wireless transmission device 60 is set to the stop function, the transmitter power switch SW5 is turned off.

Therefore, the alarm canceling operation is first stopped by pressing the reset switch SWB when the alarm sound of the wireless receiver 70 is stopped, and at the same time the standby state is entered.
Further, the outlet socket 1 with lock is opened. The following description will be made in the same manner as in the first embodiment.

In the third embodiment of the present invention, FIG. 4 is a block diagram of the circuit of the third embodiment.
The main difference from the first and second embodiments of the present invention is that a 4A connection signal detection circuit is provided in the outlet socket 1 with lock. A power supply line is branched and inputted to the detection input A terminal of the connection signal detection device 4A from between the leakage breaker 2 and the main power switch SW1. The terminal A is connected to the signal detection circuit 4B through the cut capacitors C3 and C4 of the commercial AC power supply 10. The signal output of the signal detection circuit 4B is output from the B terminal and input from the C terminal of the abnormality detection device 4.

In addition, a power supply plug device 21 is provided at one end of the cord of the plug 19. The internal configuration of the power supply plug device 21 is input from the E terminal of the commercial AC power supply 10 and connected to the power supply power terminal 22 and the commercial AC cut capacitors C1 and C2 of the commercial AC power supply 10, respectively. The power supply terminal 22 contacts the power receiving plug 27 of the electric vehicle 31 to supply power, and the other of the commercial AC cut capacitors C1 and C2 is connected to the signal transmission circuit 26.
The commercial AC cut capacitor C1 = C2 = C3 = C4.
Power for the signal transmission circuit 26 is supplied from the plug power supply circuit 25. One terminal of the plug power supply circuit 25 is connected to the O terminal of the contact button switch 24 from one of the commercial AC power supplies 10, and the other N terminal is connected to the power supply input of the signal transmission circuit 26.

The contact button switch 24 is turned on and off by the contact button 23. When the power supply plug device 21 comes into contact with the power receiving plug 27, the contact button switch 24 is pressed to turn on the contact button switch 24. When the power is turned on, the signal transmission circuit 26 is driven to transmit and output. The transmission frequency f1 is higher than f0 and f1 >> f0. Therefore, the impedance Z becomes 1 / 2πf1C1 << 1 / 2πf0C1 and therefore passes through the commercial AC cut capacitors C1 and C2 and is output from the E terminal of the power supply plug device 21 toward the connection signal detection device 4A.
Therefore, the transmission frequency f1 passes through the commercial AC cut capacitors C3 and C4, respectively.
The transmission frequency f1 that has passed through the commercial AC cut capacitors C3 and C4 is input to the signal detection circuit 4B.
When the power plug device 21 is removed, the contact button 23 is released and the contact button switch 23 is turned off. Alternatively, when the cord or the like is cut, the signal transmission circuit 26 stops driving to stop outputting a signal, and when the output of the connection signal detection circuit 4B decreases, the abnormality detection device 4 determines that it is abnormal and issues an alarm signal. .

Therefore, the electric vehicle 31 is demonstrated to the load 20 by the above structure as an example.
When the power supply plug 21 is inserted into the power reception plug 27 and comes into contact with the power supply power terminal 22 and the power supply terminal of the power reception plug 27, the contact button 23 is pressed and the contact button switch 24 is turned on. Further, when the plug 19 is inserted into the outlet 3 of the lock outlet box 1 and the main power switch SW1 is turned on, the interlocked secondary power switch SW2 is also turned on. If necessary, the notification switch SW3 and the alarm volume power switch SW4 are turned on, so that the circuit in the lock outlet box 1 is in an operating state.
Therefore, the lock of the outlet socket 1 with lock is locked.
In addition, power is supplied to the internal circuit of the power supply plug device 21 from the plug 19, the connection signal transmission circuit 26 transmits the frequency f1, and the transmission frequency f1 passes through the cut capacitors C1, C2, C3, and C4. To send a signal to the signal detection circuit 4B. Furthermore, electric power is sent from the power supply power terminal 23 to the electric vehicle 31, and charging of the car rechargeable battery 29 from the car charging device 28 is started.

  Here, even if the main power switch SW1 is not turned off and the plug 19 is being charged while being plugged in, or the charging is completed, the power plug device 21 and the plug 19 are disconnected, When a trouble of disconnection or contact failure occurs, the signal transmission circuit 26 stops transmitting, so that the signal detection circuit 4B determines that the signal is not transmitted, and issues an alarm signal from the abnormality detection device 4, and the alarm volume device 5 After that, an alarm sound is emitted from the alarm neglect 9. The following description will be made in the same manner as in the first and second embodiments.

From the above, it is possible to cope with serious problems such as electrical troubles, mischief, and car theft under outdoor conditions.
In order to remove the normal plug 19, the lock 33 is released, the box lid 11 is opened, and the secondary power switch SW 2 that is linked to the power switch SW 1 is turned off.
The following description will be made in the same manner as in the first and second embodiments.

  In addition, in the circuit configuration in the outlet socket 1 with the lock, in the charging device 8 and the rechargeable battery 12 for the power supply of each circuit, the power supply device is branched from the power supply side of the leakage breaker 2 without using the rechargeable battery 12. It is also possible to provide a power supply circuit for supplying each circuit. Thereby, the rechargeable battery 12 can be not used.

  It is a figure which shows the 1st Example of this invention, The cover of an outlet box with a lock | rock is opened, It is the front view which each apparatus related to an internal power supply circuit and an abnormality detection apparatus comprised.   It is a block diagram of the circuit of the abnormality detection mechanism type | formula outlet box in the 1st Example of this invention.   FIG. 5 is a block diagram showing a second embodiment of the present invention, in which common parts of the first embodiment are omitted, and are circuit block diagrams having partially different circuit configurations.   It is a block diagram of the circuit of the abnormality detection type | formula outlet box in the 30th example of this invention.

Explanation of symbols

1 is an outlet box with a lock 2 is an earth leakage breaker 3 is an outlet 4 is an abnormality detection device 4A is a connection signal detection device 4B is a signal detection circuit 5 is an alarm volume device 6 is an external notification device 7 is an alarm reception device 8 is a charging device 9 Alarm device 10 is a commercial AC power source 11 is a box lid 12 is a rechargeable battery 13 is a current detection transformer 14 is an outlet voltage indicator lamp 15 is a load energization indicator lamp 16 is an alarm lamp 17 is a voltage detection circuit 18 is an alarm output circuit 19 is plugged in Plug 20 is a load 21 is a power supply plug device 22 is a power supply power terminal 23 is a contact button 24 is a contact button switch 25 is a plug power circuit 26 is a contact signal transmission circuit 27 is a power receiving plug 28 is a car charger 28 is a car battery 30 Motor 31 is electric vehicle 32 is ground 33 is lock 7A is receiving circuit 7B is sound generating circuit 7C is output terminal 60 is Earless transmitter 61 is amplification, switching circuit 62 is transmission circuit 63 is transmission antenna 70 is wireless receiver 71 is wireless reception circuit 72 is output device 73 is receiver output terminal 74 is reception antenna SW1 is main power switch SW2 is secondary Power switch SW3 is an external notification switch SW4 is an alarm volume power switch SW5 is a transmitter power switch SWA and SWB are reset switches C1, C2, C3 and C4 are commercial AC cut capacitors

Claims (3)

  Install an earth leakage breaker combined with circuit breaker in the lockable box (hereinafter referred to as the earth leakage breaker), and notify the external manager of the outlet equipment, abnormality detection device, alarm device, and alarm on the load side of the earth leakage breaker Provide an external reporting device. When a trouble such as a short circuit or leakage occurs in the power supply to the load by inserting a plug into the outlet, when the leakage breaker operates and shuts off, the abnormality detection device detects the shutoff and issues an alarm from the alarm device. An anomaly detection mechanism type outlet box characterized by being able to report to the outside.   A wireless transmitter is provided in the external communication device, and an abnormality detection signal is transmitted from the wireless transmitter when the abnormality detection device detects an abnormality such as a short circuit or electric leakage. 3. The abnormality detection mechanism type outlet box according to claim 1, wherein the wireless receiver issues an alarm from the wireless receiver when receiving the abnormality detection signal. A connection signal detection device is provided in the lock outlet box on the power supply side, and the output of the connection signal detection device is connected to the input of the abnormality detection device. In addition, a connection signal transmission circuit is provided in the power supply plug device for supplying power to the load at one end of the plug with cord inserted into the outlet in the lock outlet box.
Therefore, when a dangerous state such as separation, disconnection of a cable, and poor contact occurs between the outlet in the outlet box with the lock and the connection part of the power plug device from the plug for power feeding, The said abnormality detection apparatus detects that the connection signal was interrupted via the said connection signal detection apparatus in a socket outlet box with a lock | rock, and an alarm device raises an alarm, The said Claim 1 characterized by the above-mentioned. Anomaly detection mechanism type outlet box.

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