JP2008092725A - Power transmission stop/stop-release device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove a wireless communication device from a voltmeter without disconnecting a power transmission path after allowing the stop/stop-release of power supply to a power consumer executed by a remote control operation. <P>SOLUTION: This power transmission stop/stop-release device is provided with a switch 13 which stops power supply via the voltmeter or releases the stop of power supply, and the wireless communication device 21 for executing the opening/closing control of the switch 13 on the basis of a wirelessly-transmitted stop/stop-release command. The wireless communication device 21 is composed so as to be separable from the switch 13 while the switch 13 is attached to the voltmeter. The switch 13 is attached to the voltmeter while the wireless communication device 21 is connected to the switch 13 via connectors 14, 28. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a power transmission stop / stop device, and in particular, to a method for stopping and stopping power supplied from a power supplier (power company, etc.) to a power consumer (home, etc.) by remote control. Is preferred.

  When power is supplied from a power supplier to a power consumer, each power consumer is asked to measure the amount of power used by the power consumer and collect a charge commensurate with the usage. On the other hand, a watt-hour meter is installed. This watt-hour meter is connected to the lead-in wire that leads to the transmission line on the power supplier side, and is connected to the indoor wiring on the power consumer side. It can be measured. And the electric power supply provider can collect a usage fee from an electric power consumer by charging a usage fee with respect to an electric power consumer based on the power consumption measured with the watt-hour meter. Here, depending on the payment status of the power usage fee, the power supply provider may stop the supply of power to the power consumer or cancel the stop of the supply of power.

Here, when the power supplier stops or cancels the supply of power, the worker goes to the watt-hour meter installation site of the corresponding power consumer, and the demand attached to the load of the watt-hour meter consumer By disconnecting or connecting the house line, the in-house power transmission is stopped or restored.
Further, for example, Patent Documents 1 and 2 disclose a method of installing a watt-hour meter with a remote shut-off device in order to improve the efficiency of the operation of stopping and canceling the supply of power. This watt-hour meter with a remote shut-off device is provided with a circuit breaker that cuts off a load circuit for supplying power to the house, and operates the circuit breaker according to a signal transmitted from an external device to stop power supply / Stop cancellation can be performed.
JP 2002-98721 A JP 2004-229400 A

However, in the case of a conventional watt-hour meter with a remote shut-off device, a wireless communication device such as a pager, PHS, or mobile phone and a circuit breaker are integrally configured. When there is a failure or the like, it is necessary to replace the wireless communication device after removing the wireless communication device from the watt hour meter together with the circuit breaker. For this reason, in addition to the need for in-house power outage due to the removal of the customer line attached to the customer's load, a live line work is also required in the replacement work of the wireless communication device, and there is a great risk of electric shock and the like. There was a problem.
Accordingly, an object of the present invention is to make it possible to stop and stop power supplied to a power consumer by remote control, and to connect a wireless communication device to a watt-hour meter without cutting a power transmission path. It is providing the power transmission stoppage cancellation apparatus which can be removed from.

  In order to solve the above-described problem, according to the power transmission stop / cancel apparatus according to claim 1, an open / close mechanism that opens and closes a power transmission path of power transmitted through a terminal portion of the watt hour meter is provided, and the power amount A switch that can be attached to a terminal of a meter, and configured to be separable from the switch while the switch is attached to the watt-hour meter, and based on a stop / cancel command transmitted wirelessly And a wireless communication device that controls opening and closing of the mechanism.

  As a result, when the switch is attached to the watt-hour meter, the wireless communication device that controls the opening and closing of the switching mechanism can be removed from the switch, and there is a change in the standard of the wireless communication device or a failure of a communication component. However, the wireless communication device can be replaced without removing the switch from the watt-hour meter. For this reason, it is no longer necessary to remove the customer line in order to replace the wireless communication device, eliminating the need for in-home power outage work, and eliminating the need for live line work in the replacement work of the wireless communication device. Can be reduced.

Moreover, according to the power transmission stop / cancel apparatus according to claim 2, the wireless communication apparatus includes a communication unit that receives a stop / cancel command transmitted wirelessly, and a stop / stop received by the communication unit. An open / close control unit that performs open / close control of the open / close mechanism based on a solution command, an open / close drive unit that performs open / close drive of the open / close mechanism based on an open / close command from the open / close control unit, and electric power for performing the open / close drive And a drive power supply unit for supplying the power.
As a result, it is not necessary to provide a power source for driving the switching mechanism on the switch side, and it is possible to prevent the switch from becoming large, which obstructs the switch at the terminal part of the watt-hour meter. Can be installed without.

According to a third aspect of the present invention, the power transmission stop / cancellation apparatus further comprises a connector that can be inserted and removed to exchange signals between the wireless communication apparatus and the switch.
This makes it possible to transfer signals between the wireless communication device and the switch and easily separate the wireless communication device from the switch.

Moreover, according to the power transmission stop / cancellation device according to claim 4, the terminal cover of the watt-hour meter and the switch are configured to cover from the front, and the terminal cover on which the wireless communication device is integrally attached is provided. It is further provided with the feature.
This makes it possible to remove the wireless communication device from the switch together with the terminal cover while the switch is attached to the watt hour meter, and to separate the wireless communication device from the switch. In addition, the wireless communication device can be compactly attached to the switch.

  As described above, according to the present invention, it is possible to replace the wireless communication device without removing the switch from the watt hour meter, and it is necessary to remove the consumer line in order to replace the wireless communication device. This eliminates the need for in-home power outage work and improves the safety of exchanging wireless communication devices.

Hereinafter, a power transmission stoppage cancellation apparatus according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a power transmission stoppage cancellation apparatus according to the first embodiment of the present invention.
In FIG. 1, the power transmission stop / cancel device includes a switch 13 for stopping the supply of power sent through the watt-hour meter and canceling the stop of the power supply, and a stop stop transmitted wirelessly. A wireless communication device 21 that performs opening / closing control of the switch 13 based on the solution command is provided. Here, the wireless communication device 21 is configured to be separable from the switch 13 while the switch 13 is attached to the watt hour meter. The switch 13 and the wireless communication device 21 include the switch 13 and the wireless communication device 21. Are provided with connectors 14 and 28 that can be inserted and removed from each other.
The switch 13 is provided with an opening / closing mechanism 16 that opens and closes a power transmission path for power transmitted via the terminal unit of the watt hour meter, and the switch 17 is provided with a switch 17 that disconnects and connects the power transmission path. It has been. As the opening / closing mechanism 16, for example, a solenoid can be used.

  Further, the wireless communication device 21 includes an antenna 22 that detects a radio wave carrying a stop / stop command, a communication unit 23 that receives a stop / stop command transmitted wirelessly, and a stop / stop received by the communication unit. The opening / closing control unit 24 that performs opening / closing control of the opening / closing mechanism 16 based on the solution command, the opening / closing driving unit 26 that performs opening / closing driving of the opening / closing mechanism 16 based on the opening / closing command from the opening / closing control unit 24, and the power for performing the opening / closing driving A drive power supply unit 25 to be supplied and a state detection unit 27 for detecting the open / closed state of the power transmission path are provided. In the open / close control unit 24, a management number 29 unique to the power consumer can be registered. Further, when wireless communication is performed by the communication unit 23, a wireless communication network such as a mobile phone network or a PHS network can be used.

  Then, when operating the power transmission stop / stop device, the switch 13 is attached to the watt hour meter, and the wireless communication device 21 is connected to the switch 13 via the connectors 14 and 28. The connectors 14 and 28 are configured to be detachable from each other, and the radio communication device 21 can be easily separated from the switch 13 by disconnecting the connectors 14 and 28 from each other.

FIG. 2 is a front view showing a state in which the switch according to the first embodiment of the present invention is attached to the watt hour meter, and FIG. 3A shows a schematic configuration of the switch according to the first embodiment of the present invention. A perspective view and FIG.3 (b) are bottom views which show schematic structure of the switch of Fig.2 (a).
In FIG. 2, the watt-hour meter 11 is provided with a lead-in wire connected to the power transmission line and a terminal part 12 connected to the indoor wiring on the power consumer side. The terminal part 12 has a lead-in wire connected to the power transmission line and A screw 12 a for connecting the indoor wiring on the power consumer side to the watt hour meter 11 is provided.

  Further, the terminal unit 12 is connected to a switch 13 for opening and closing a power transmission path of power transmitted through the watt hour meter 11. A lead-in wire and an indoor wiring are connected to the watt hour meter 11 on the front of the switch 13. A screw 13a is provided for connection to the. The switch 13 is provided with a cover 15 that covers the screw 13 a and a connector 14 for transmitting and receiving signals to and from the switch 13.

  Further, as shown in FIG. 3A, on the upper surface side of the switch 13, a terminal 13 b that connects a lead-in electric wire or indoor wiring drawn into the switch 13 to the terminal portion 12 is provided. And the terminal 13b of the switch 13 is inserted in the terminal part 12, and the terminal 13b inserted in the terminal part 12 is screwed with the screw 12a, so that the lead-in wire or the indoor wiring drawn into the terminal part 12 can be removed. It can be connected to the watt hour meter 11.

  Furthermore, as shown in FIG.3 (b), the insertion hole 13c which inserts the terminal connected to the drawing-in electric wire or indoor wiring is provided in the bottom face side of the switch 13. As shown in FIG. Then, a terminal connected to the lead-in electric wire or the indoor wiring is inserted into the insertion hole 13c, and the terminal connected to the lead-in electric wire or the indoor wiring is screwed with the screw 12a, thereby being drawn into the switch 13. A lead-in wire or indoor wiring can be connected to the terminal portion 12.

FIG. 4 is a block diagram showing a system configuration to which the power transmission stoppage cancellation device according to the first embodiment of the present invention is applied.
In FIG. 4, a system server 33 is installed on the electric power supplier side. The system server 33 is connected to a communication server 35 of a communication company, and the communication server 35 is connected to a base station 36 that establishes communication on a mobile phone network, for example.

On the other hand, a watt hour meter 11 is installed on the consumer 31 side, and a switch 13 is attached to the watt hour meter 11 via a terminal portion 12. The switch 13 is connected to the wireless communication device 21 via the connectors 14 and 28 shown in FIG.
And while the electric power lead-in electric wire 32a is drawn into the watt-hour meter 11 via the switch 13 and the terminal part 12, the consumer line 32b pulled out via the switch 13 and the terminal part 12 from the watt-hour meter 11 Connected to a load 38.

And the electric power transmitted to the consumer 31 via the electric power lead-in electric wire 32a is supplied to the load 38 via the consumer line 32b while the electric power consumption is monitored by the watt hour meter 11.
When there is a customer 31 whose payment of the power rate is delayed, the system server 33 is used to send a power transmission stop command together with the management number of the customer 31 to the communication server 35. When the communication server 35 receives the power transmission stop command together with the management number of the customer 31 from the system server 33, the communication server 35 sends the power transmission stop command together with the management number of the customer 31 via the antenna 37 of the base station 36.

  When the wireless communication device 21 receives the power transmission stop command together with the management number of the customer 31, the wireless communication device 21 determines whether or not the management number matches the management number unique to itself. If the management number received by the wireless communication device 21 matches the management number unique to itself, the wireless communication device 21 establishes communication with the base station 36 and receives the power transmission stop command sent from the system server 33. To do. When the wireless communication device 21 receives the power transmission stop command, the opening / closing control unit 24 instructs the opening / closing driving unit 26 to block the power transmission path using the opening / closing mechanism 16. When the opening / closing drive unit 26 is instructed by the opening / closing control unit 24 to block the power transmission path, the opening / closing drive unit 26 drives the opening / closing mechanism 16 via the connectors 14 and 28 to block the power transmission path. Let

When the power transmission path is interrupted by the opening / closing mechanism 16, the potential of the power transmission path is sent to the state detection unit 27 via the connectors 14 and 28. And the state detection part 27 can judge whether the power transmission path was interrupted | blocked normally by determining the electric potential of a power transmission path.
On the other hand, when there is a payment of the power charge from the customer 31 side, when the payment of the power charge of the customer 31 whose power transmission path is blocked is confirmed using the system server 33 based on the payment status, A power transmission cancellation command is sent to the communication server 35 together with the management number of the customer 31. When the communication server 35 receives the power transmission cancellation command together with the management number of the customer 31 from the system server 33, the communication server 35 transmits the power transmission cancellation command together with the management number of the customer 31 via the antenna 37 of the base station 36. .

  And if the wireless communication apparatus 21 receives the power transmission cancellation command with the management number of the customer 31, it will judge whether the management number corresponds with its own management number. If the management number received by the wireless communication device 21 matches the management number unique to the wireless communication device 21, the wireless communication device 21 establishes communication with the base station 36 and sends a power transmission cancellation command sent from the system server 33. Receive. When the wireless communication device 21 receives the power transmission cancellation command, the opening / closing control unit 24 instructs the opening / closing drive unit 26 to connect the power transmission path using the opening / closing mechanism 16. When the opening / closing drive unit 26 is instructed by the opening / closing control unit 24 to connect the power transmission path, the opening / closing drive unit 26 connects the power transmission path by driving the opening / closing mechanism 16 via the connectors 14 and 28. Let

When the power transmission path is connected by the opening / closing mechanism 16, the potential of the power transmission path is sent to the state detection unit 27 via the connectors 14 and 28. And the state detection part 27 can judge whether the power transmission path was normally connected by determining the electric potential of a power transmission path.
Thereby, it is possible to remove the wireless communication device 21 from the switch 13 while the switch 13 is attached to the watt hour meter 11. Even when there is a change in the standard of the wireless communication device 21 or a failure of communication components, The wireless communication device 21 can be replaced without removing the switch 13 from the watt-hour meter 11. For this reason, it is not necessary to remove the customer line 32b in order to replace the wireless communication device 21, so that no power outage work is required in the home, and no live line work is required in the replacement work of the wireless communication device 21, resulting in an electric shock. Etc. can be reduced.
In addition, by providing the opening / closing drive unit 26 and the drive power supply unit 25 on the wireless communication device 21 side, it is not necessary to provide a power source for driving the opening / closing mechanism 16 on the switch 13 side, and the switch 13 is increased in size. Therefore, the switch 13 can be attached to the terminal portion 12 of the watt hour meter 11 without any trouble.

FIG. 5 is a perspective view showing a state before the power transmission stoppage cancellation apparatus according to the second embodiment of the present invention is attached to the watt hour meter, and FIG. 6 is a power transmission stoppage cancellation according to the second embodiment of the present invention. It is a perspective view which shows the state after an apparatus was attached to the watt-hour meter.
5 and 6, the watt hour meter 11 can be equipped with a terminal cover 41 configured to cover the terminal portion 12 and the switch 13 of the watt hour meter 11 from the front. 1 can be integrally attached to the terminal cover 41. As shown in FIG. Here, when the wireless communication device 21 is attached to the terminal cover 41, the wireless communication device 21 can be modularized so that the wireless communication device 21 is disposed on both sides of the terminal portion 12 and the switch 13. For example, the communication module 43 on which the antenna 22, the communication unit 23, and the opening / closing control unit 24 of the wireless communication device 21 are mounted is arranged on one side of the terminal cover 41, and the driving power supply unit 25 and the opening / closing driving unit 26 are mounted. The power supply module 42 arranged on the other side of the terminal cover 41 can be connected to the communication module 43 and the power supply module 42 via the wiring cable 44.
As a result, the wireless communication device 21 can be integrally removed from the switch 13 together with the terminal cover 41 while the switch 13 is attached to the watt hour meter 11, and the wireless communication device 21 is separated from the switch 13. Even when configured to be able to, the wireless communication device 21 can be compactly attached to the switch 13.

It is a block diagram which shows schematic structure of the power transmission stoppage cancellation apparatus which concerns on 1st Embodiment of this invention. It is a front view which shows schematic structure of the watt-hour meter with which the switch concerning 1st Embodiment of this invention was attached. Fig.3 (a) is a perspective view which shows schematic structure of the switch concerning 1st Embodiment of this invention, FIG.2 (b) is a bottom view which shows schematic structure of the switch of Fig.3 (a). It is a block diagram which shows the system configuration | structure to which the power transmission stoppage cancellation apparatus which concerns on 1st Embodiment of this invention is applied. It is a perspective view which shows the state before the power transmission stop and cancellation apparatus which concerns on 2nd Embodiment of this invention is attached to a watt-hour meter. It is a perspective view which shows the state after the power transmission stop and cancellation apparatus which concerns on 2nd Embodiment of this invention was attached to the watt-hour meter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Electricity meter 12 Terminal part 13 Switch 12a, 13a Screw 13b Terminal 13c Insertion hole 14, 28 Connector 15 Cover 16 Opening / closing mechanism 17 Switch 21 Radio | wireless communication apparatus 22, 37 Antenna 23 Communication part 24 Opening / closing control part 25 Drive power supply part 26 Opening and closing drive unit 27 State detection unit 29 Control number 31 Customer 32a Electric power draw-in wire 32b Customer line 33 System server 35 Communication server 36 Base station 38 Load 41 Terminal cover 42 Power supply module 43 Communication module 44 Wiring cable

Claims (4)

An opening / closing mechanism that opens and closes a transmission path of electric power sent through the terminal unit of the watt hour meter,
A wireless communication device configured to be separable from the switch while the switch is attached to the watt-hour meter, and performing opening / closing control of the switching mechanism based on a stop / stop command transmitted wirelessly A power transmission stopping and stopping device. The wireless communication device
A communication unit that receives a stop / stop command transmitted wirelessly;
An open / close control unit for performing open / close control of the open / close mechanism based on a stop / stop command received by the communication unit;
An opening / closing drive unit that performs opening / closing drive of the opening / closing mechanism based on an opening / closing command from the opening / closing control unit;
The power transmission stop / cancel apparatus according to claim 1, further comprising: a drive power supply unit that supplies electric power for performing the opening / closing drive.   The power transmission stop / cancel apparatus according to claim 2, further comprising a pluggable connector for transmitting and receiving signals between the wireless communication apparatus and the switch.   4. The terminal device according to claim 1, further comprising a terminal cover configured to cover the terminal part of the watt-hour meter and the switch from the front, and to which the wireless communication device is integrally attached. The power transmission stoppage cancellation device as described in the item.

Images