JP2001344014A - Power feeding device with watt-hour meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power feeding device with a watt-hour meter by which electricity is hardly used surreptitiously. SOLUTION: This device consists of a base and a cover, and is provided with a power source cable insertion hole and a load cable insertion hole, and also is provided with the watt-hour meter, a load cable connecting means, an open/close contact means, an electricity surreptitious use detecting means, a contract release instructing means and a contact device in a box constituted so as to be sealed by a lock. Then, a power is supplied to the watt-hour meter, the contact device, and the load cable connecting means in this order. When the electricity surreptitious use detecting means detects the surreptitious use, the contact device is released by the contact releasing means so that the feed of the power can be stopped. In this case, a contact restoring means is allowed to perform the closing operation of the contact device only by a specific means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for measuring the amount of power of a load device and selling the power, and relates to a device capable of preventing power theft.

[0002]

2. Description of the Related Art Conventionally, as a device for measuring the electric energy of a load device and preventing power theft, a watt-hour meter and an outlet are housed in one box, and the box lid and case are locked with a key. There was a structure that did.

[0003]

In a conventional device for measuring the amount of electric power of a load device and preventing power theft, the box is locked with a key. In this case, another load device could be easily connected, and the power could be stolen.

In the case of a power theft as described above, until the administrator of the device goes to the site and confirms it,
Alternatively, there is a problem that it is not possible to grasp that the power is being stolen until the user notices an abnormality, such as receiving an unintended charge at the time of payment of the electricity bill.

[0005] The present invention has been made to solve the above problems, and an object of the present invention is to provide a power supply device with a watt-hour meter that cannot easily perform power theft.

[0006]

A first aspect of the present invention is a power meter and a load electric wire, which are formed of a base and a cover, have a power supply electric wire insertion hole and a load electric wire insertion hole and are sealed by a lock. It has a connecting means, an open / close contact means, a power theft detecting means, a contact opening / disconnecting command means, and a contact device. The power is supplied in the order of a watt hour meter, a contact device, and a load wire connecting means, and when the power theft detecting means detects the power theft. Is characterized in that the contact disconnecting means disconnects the contact device to stop the supply of power, and the contact return means allows the contact device to be closed only by specific means. A power supply device is provided.

According to a second aspect of the present invention, the load wire connecting means is an outlet, and the power theft detecting means detects whether or not the outlet is connected to or disconnected from the plug. The device was provided.

According to a third aspect of the present invention, there is provided the power supply device with a watt-hour meter according to the first aspect, wherein the power theft detecting means detects that the cover of the box has been opened.

According to a fourth aspect of the present invention, there is provided the power supply device with a watt hour meter according to the first to third aspects, wherein the specific means for operating the contact return means is an electronic lock. is there.

According to a fifth aspect of the present invention, the specific means for operating the contact return means is performed by a remote control means from a predetermined management place.
And a power supply device with a watt-hour meter.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of a power meter-equipped power supply device according to one embodiment of the present invention. In this embodiment, a watt-hour meter 4, a contact device 5, a load wire connecting means 6, a contact opening / closing means 7, a contact opening means 7 are provided in a box 1 provided with a power supply wire insertion hole 2 and a load wire insertion hole 3. It has a built-in resetting means 8, a power theft detecting means 9, and a specific means 10 for operating the contact returning means 8. Although not shown in FIG. 1, the box 1 includes a case, a cover, and a lock for locking the case and the cover.

The load wire connecting means 6 is a member to which wires of a load device can be connected, and uses an outlet and a terminal block.

The power supply device with a watt-hour meter shown in FIG. 1 operates as follows. The contact device 5 is normally closed, supplies power to the load device, and the wattmeter 4 measures the supplied power. The power seller periodically checks the measured power amount and charges the power buyer.

Here, when the power theft detecting means 9 detects an act relating to the power theft, it acts on the contact separating means 7 to immediately open the contact device 5 to stop the power supply. Theft detection means 9
The embodiment will be described later in detail with reference to FIGS.

To restore the power supply, a specific means 1 shown in FIG.
By operating 0, the contact return means 8 is operated to close the contact device 5. The specific means 10 can be operated only by the administrator of the apparatus, and cannot be operated by ordinary people. The specific example will be described in detail with reference to FIGS.

FIG. 2 shows a specific means 10 shown in FIG.
This is an example of the case where The electronic lock 11 recognizes a personal identification number and a fingerprint, and specifies an administrator of the apparatus.

FIG. 3 shows the specific means 10 shown in FIG. 1 as the remote control means 12 for the manager's room. In this case, power can be supplied only from the manager's room whose access is monitored.

FIG. 4 shows a specific example of the power theft detecting means 9 shown in FIG. 1, in which the load wire connecting means 6 shown in FIG. It is. When the limit switch is temporarily turned ON or OFF, the contact opening means 7 is actuated, and the contact device 5 is opened to stop the power supply.

FIG. 5 shows another specific example of the power theft detecting means 9 of FIG. 1. The case 101 has a hinge 104 on one side.
Box 1 hinged with, and the other locked with lock 103
The release of the cover 102 is detected by the limit switch 16, and the limit switch is temporarily turned on.
Alternatively, when the switch is turned off, the contact opening means 7 is operated to open the contact device 5 to stop the power supply.

In the power supply device with a watt-hour meter, first, when the power supply to the power purchaser is normally started, the electric wire of the load device is connected to the load electric wire connection device 6 and sold by a specific means 10. The administrator on the electric side operates the contact return means 8 to perform the operation. If there is a power theft such as unplugging and plugging of the load device during power supply, or breaking the lock of the box and opening the cover, the contact disconnecting means 7 is operated by the action of the power theft detecting means 9 and the contact The device 5 opens and stops supplying power immediately,
Prevent theft. When starting power supply, it can be performed as described above.

[0021]

As described above, according to the present invention, power supply is stopped by detecting power theft, and once power supply is stopped, only a person who can operate a specific means can supply power. Therefore, there is an effect that it is possible to provide a power supply device with a watt-hour meter that can prevent power theft twice.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a configuration diagram showing a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram showing a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Power supply wire insertion hole 3 Load wire insertion hole 4 Watt hour meter 5 Contact device 6 Load wire connection means 7 Contact release means 8 Contact return means 9 Power theft detection means 10 Specific means

Claims (5)

[Claims] A power meter, load wire connecting means, open / close contact means, and theft detection are provided in a box which comprises a base and a cover, has a power wire insertion hole, a load wire insertion hole, and is sealed by a lock. Means, a contact opening commanding means, and a contact device, power is supplied in the order of a watt hour meter, a contact device, and a load wire connecting means. When the power theft detecting means detects power theft, the contact opening means is a contact device. A power supply device with a watt-hour meter, characterized in that the power supply is stopped by separating the contact and the contact return means can be closed only by a specific means. 2. The power supply device with a watt-hour meter according to claim 1, wherein said load wire connecting means is an outlet, and said power theft detecting means detects whether or not said outlet is connected to or disconnected from a plug. 3. The power supply apparatus with a watt-hour meter according to claim 1, wherein said power theft detecting means detects that the cover of the box has been opened. 4. A system according to claim 1, wherein said specific means for operating said contact return means is an electronic lock.
A power supply device with a watt-hour meter according to claim 3. 5. The outlet device according to claim 1, wherein the specific means for operating the contact return means is a remote control means from a predetermined management place.