JP2006275789A - Communication device for watt hour meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication device for a watt hour meter placeable without generating service interruption on the consumer side in a piping work, capable of reducing an installation space, and not spoiling external fine appearance after installation. <P>SOLUTION: This device comprises a case 13, 15 for storing a transmission signal input/output part for transmitting metered data metered by the watt hour meter 1 and a power source part for supplying a power source to the transmission signal input/output part; a communication terminal 11a provided in the case, for connecting the transmission signal input/output part to a terminal 4 for communication of the watt hour meter 1; a power source terminal 11b provided in the case, for connecting the power source part to a terminal 3 for a distribution line of the watt hour meter 1; and an upper case fixing screw 10a for fixing the case to a cover terminal part of the watt hour meter. When the case is fixed to the cover terminal part 9 of the watt hour meter 1 by the upper case fixing screw 10a, the communication terminal 11a is connected to the terminal 4 for communication of the watt hour meter 1, and the power source terminal 11b is connected to the terminal 3 for the distribution line of the watt hour meter 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a communication device for electric energy that transmits measurement data obtained from a watt-hour meter with a communication function to the outside by wire or wireless, and more particularly to a structure for attaching the communication device for watt-hour meter to the watt-hour meter. .

  In recent years, watt-hour meter reading work is performed by using a wireless or wired communication device from an external data reading device or a centralized management center installed in a remote place, from a visual confirmation that a person visually checks the amount of electric power. Moving to remote meter reading.

  FIG. 9 shows an installation state of a conventional watt-hour meter and a watt-hour meter communication device. The watt-hour meter 1 shown in FIG. 9 is a watt-hour meter with a communication function capable of transmitting measurement data to the outside. The watt-hour meter 1 is measured by the distribution line terminal 3 and the watt-hour meter 1 to which the distribution line is connected to the cover terminal portion 9. The terminal cover 8 has a terminal cover 8 for ensuring the waterproofness of the communication terminal 4 and the cover terminal portion 9 of the watt hour meter 1 used when transmitting measured data, and the terminal cover 8 has a terminal cover fixing screw 10. And is fixed to the cover terminal portion 9. In addition, the watt-hour meter 1 is often installed in a housing such as a cosmetic box 7 or an instrument box in order to improve weather resistance without impairing the aesthetic appearance.

  9 includes a power cable 5 that supplies power from the watt-hour meter 1 to the watt-hour communication device 2 and a communication that transmits measurement data measured by the watt-hour meter 1. The communication device 2 shown in FIG. The cable 6 is connected to the electricity meter 1. The power cable 5 has a semi-circular flat crimp terminal attached to the tip of the watt hour meter 1, and the flat crimp terminal is connected to the distribution line terminal 3 of the watt hour meter 1 together with the distribution line. Has been. The communication cable 6 has a stick-shaped crimp terminal attached to the tip on the watt hour meter 1 side, and is directly connected to the communication terminal 4 of the watt hour meter 1 to be connected.

In addition, as a system for performing such remote meter reading, specific data such as the call number set in the wireless unit is automatically set to automatically maintain and expand the wireless unit, and unauthorized access from the outside There is known a wireless unit management system having a high security that can prevent an unnecessary communication subscription (see, for example, Patent Document 1). In this wireless unit management system, a data collection unit collects data of a wireless unit and manages the wireless unit, and the wireless unit has a plurality of specific data for specifying the unit.
JP-A-11-298974

  However, when the conventional watt-hour meter communication device 2 shown in FIG. 9 is newly installed in the watt-hour meter 1 that has already been installed, the power cable 5 of the watt-hour meter communication device 2 is connected to the power distribution line. In order to connect to the distribution line terminal 3 of the quantity meter 1, the screw of the distribution line terminal 3 must be loosened, the customer side must be temporarily interrupted, and installation work must be performed. For this reason, when performing the installation work, it is necessary to notify the customer in advance that a power outage will occur temporarily or to adjust the available installation time, which takes time and effort. It was.

  The housing such as the cosmetic box 7 and the instrument box for storing the watt hour meter 1 is slightly larger than the watt hour meter 1, and the watt hour meter communication device 2 is installed together with the watt hour meter 1. There is no space to store, and the watt-hour meter communication device 2 is installed outside a housing such as a cosmetic box 7 or an instrument box. For this reason, when installing the watt-hour communication apparatus 2 newly, it is necessary to ensure the installation space of the watt-hour communication apparatus 2 other than housing | casing installation space, such as a decoration box 7 and an instrument box, and on external appearance There were problems such as detracting from the aesthetics.

  The present invention has been made in order to solve the above-described problems, and the problem is that the wiring can be performed without causing a power outage on the customer side, and the installation space can be reduced. An object of the present invention is to provide a communication device for a watt-hour meter that does not impair the appearance of the exterior after installation.

  The present invention employs the following means in order to solve the above problems. The invention of claim 1 is a communication device for a watt hour meter that transmits measurement data output from a communication terminal of a watt hour meter that measures the amount of power used, the metering data measured by the watt hour meter. A transmission signal input / output unit for transmitting the power to the outside and a power supply unit for supplying power to the transmission signal input / output unit, and a communication terminal of the watt-hour meter and the transmission stored in the case A communication terminal for connecting the signal input / output unit, a power supply terminal provided in the case for connecting the distribution line terminal of the watt hour meter and the power supply unit housed in the case, and the case for the amount of power A fixing member for fixing to the cover terminal portion of the meter, and when the case is fixed to the cover terminal portion of the watt hour meter by the fixing member, the communication terminal is connected to the communication terminal of the watt hour meter, and the power source Connect the terminal to the distribution line terminal of the watt-hour meter. Is the fact characterized.

  The invention according to claim 2 is a communication device for a watt hour meter that transmits measurement data output from a communication terminal of a watt hour meter that measures the amount of power used, the metering data measured by the watt hour meter. Communication device main body storing a transmission signal input / output unit for transmitting the signal to the outside, a case for storing a power supply unit for supplying power to the transmission signal input / output unit, and a communication terminal of the watt hour meter provided in the case Communication terminal for connecting the transmission signal input / output unit housed in the communication device main body and the distribution line terminal of the watt hour meter provided in the case for connecting the power supply unit housed in the case The power supply terminal, the communication terminal and the transmission signal input / output unit housed in the communication device body are connected, and the power supply unit housed in the case and the transmission signal input / output unit housed in the communication device body are connected. Cable and case of watt hour meter A fixing member for fixing to the bar terminal portion, and when the case is fixed to the cover terminal portion of the watt hour meter by the fixing member, the communication terminal is connected to the communication terminal of the watt hour meter, and the power source terminal is the power It is connected to a distribution line terminal of a meter.

  The invention of claim 3 is a communication device for a watt hour meter that transmits measurement data output from a communication terminal of a watt hour meter that measures the amount of power used, wherein the measurement data is measured by the watt hour meter. A transmission signal input / output unit for transmitting the power to the outside and a communication device body containing a power supply unit for supplying power to the transmission signal input / output unit, a communication terminal of the watt-hour meter, and a transmission signal stored in the communication device body A communication terminal for connecting the input / output unit, a power supply terminal for connecting the distribution line terminal of the watt-hour meter and the power supply unit stored in the communication device body, and the communication terminal and the power supply terminal are stored. The case is connected to the communication terminal accommodated in the case and the transmission signal input / output unit accommodated in the communication device body, and the power terminal accommodated in the case is connected to the power supply unit accommodated in the communication device body. Shared cable and case A fixing member for fixing to the cover terminal portion of the dynamometer, and when the case is fixed to the cover terminal portion of the watt hour meter by the fixing member, the communication terminal is connected to the communication terminal of the watt hour meter, The power terminal is connected to a distribution line terminal of the watt-hour meter.

  According to a fourth aspect of the present invention, in the watt-hour meter communication device according to any one of the first to third aspects, a packing is provided between the case and the cover terminal portion of the watt-hour meter, and the case and the packing A rib is provided at a joint portion between the rib and the rib, and the rib fits into the packing.

  According to a fifth aspect of the present invention, in the communication device for an watt-hour meter according to any one of the first to fourth aspects, a fixing hole is provided in the case, a sealing hole is provided in the fixing member, Sealing is performed by crimping a wire passing through the sealing hole with a sealing member.

  According to the first aspect of the present invention, the transmission signal input / output unit and the power supply unit are housed in a case, and a communication terminal for connecting the transmission signal input / output unit and the communication terminal of the watt-hour meter in the case; Providing a power supply terminal for connecting the power supply unit and the distribution line terminal of the watt hour meter, and when the case is fixed to the cover terminal part of the watt hour meter, the communication terminal and the communication terminal of the watt hour meter Is connected, and the power terminal and the distribution line terminal of the watt hour meter are connected, so it can be installed without removing the watt hour meter and the distribution line. It becomes unnecessary and installation work becomes easy. Further, since the case is fixed to the cover terminal portion of the watt hour meter, it can be installed together with the watt hour meter in a casing such as a decorative box or an instrument box, and can be installed without impairing the appearance.

  According to the invention of claim 2, the transmission signal input / output unit is housed in the communication device main body, the power supply unit is housed in the case, and the transmission signal input / output unit and the communication terminal of the watt-hour meter are provided in the case. A communication terminal for connection and a power supply terminal for connecting the power supply unit and the distribution line terminal of the watt hour meter are provided, and the communication terminal and the transmission signal input / output unit housed in the communication device body are connected. When the power supply unit housed in the case and the transmission signal input / output unit housed in the communication device main body are connected by a common cable, and the case is fixed to the cover terminal portion of the watt hour meter, the communication terminal and the watt hour meter The communication terminal is connected, and the power supply terminal and the distribution line terminal of the watt hour meter are connected, so it can be installed without removing the watt hour meter and the distribution line. Wiring connection work is also unnecessary and installation work is easy. To become. In addition, since the transmission signal input / output unit is housed in the communication device main body, the case installed in the cover terminal unit of the watt-hour meter can be reduced even in the case of a power source that requires high lightning resistance and large power capacity.

  According to the invention of claim 3, the transmission signal input / output unit and the power source unit are housed in the communication device body, and the case connected to the communication device body by the common cable is attached to the cover terminal portion of the watt-hour meter. Because it is connected to the watt hour meter by the communication terminal and the power terminal, it can be installed in the watt hour meter without removing the watt hour meter and the distribution line, so that no wiring connection work is required without causing a power outage on the customer side at the time of installation. The installation work becomes easy. In addition, because it is composed of a communication device main unit that houses the transmission signal input / output unit and power supply unit, a case, and a shared cable that connects the communication device main unit and the case, it can be used for power supplies that require high lightning resistance and large power supply capacity. Even in this case, the case installed on the cover terminal portion of the watt-hour meter can be made small.

  According to the invention of claim 4, the rib is provided at the joint portion between the case and the packing provided between the case and the cover terminal portion of the watt hour meter, and the rib fits into the packing. The waterproof performance of the cover terminal portion can be enhanced, and the weather resistance is excellent and the reliability is increased.

  According to the invention of claim 5, the fixing hole is provided in the case, the sealing hole is provided in the fixing member, and the wire passing through the fixing hole and the sealing hole is crimped by the sealing member to perform sealing. Workability is improved.

  Hereinafter, a communication device for an electric energy meter according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding parts as those of the watt-hour meter and the communication device for the watt-hour meter described in the background art section will be described using the same reference numerals as those used in the background section. .

  FIG. 1 is an external perspective view showing a state in which the watt-hour communication device 2a according to the first embodiment of the present invention is attached to the watt-hour meter 1. FIG. The watt-hour meter communication device 2a is fixed to the cover terminal portion 9 of the watt-hour meter 1 by screws with upper case fixing screws 10a.

  FIG. 2 is an exploded perspective view of the electricity meter communication device 2a according to the first embodiment of the present invention. As shown in FIG. 2, the wattmeter communication device 2 a according to the first embodiment includes a circuit board 12, a communication terminal 11 a for connecting the circuit board 12 and the communication terminal 4 of the wattmeter 1, and the circuit board 12. The power supply terminal 11b for connecting the power distribution terminal 3 to the power distribution terminal 3, the inner case 13 to which the circuit board 12 is fixed, the upper case 15 that covers the inner case 13, and the upper case 15 It is comprised from the packing 17 provided in a back surface.

  The circuit board 12 is equipped with a transmission signal input / output unit and a power supply unit. The transmission signal input / output unit receives data measured by the watt-hour meter 1 via the communication terminal 11a, and transmits the measured data to an external data reading device or a centralized control center installed at a remote place by wireless or wired. To transmit. A power supply part converts the alternating voltage supplied from the watt-hour meter 1 via the power supply terminal 11b into a direct current voltage, and supplies it to a transmission signal input / output part. In the circuit board 12, the communication terminal 11 a and the transmission signal input / output unit are connected by inserting one end of the communication terminal 11 a into the communication terminal connection unit 24, and one end of the power supply terminal 11 b is inserted into the power supply terminal connection unit 25. By doing so, the power supply terminal 11b and a power supply part are connected. After the communication terminal 11a and the power supply terminal 11b are connected, the circuit board 12 is fixed to the inner case 13 by screwing the four corners with the circuit board fixing screws 14.

  The inner case 13 is provided with a communication terminal hole 26 and a power terminal hole 27, and the communication terminal 11 a and the power terminal 11 b pass through the inner case 13. The upper case 15 is attached so as to cover the inner case 13, and the inner case fixing screw 16 is inserted from the back surface of the upper case 15 into the inner case fixing screw holes 16 a provided at two lower end portions of the rear surface of the inner case 13. Are screwed together to fix the inner case 13 to the upper case 15. Further, the upper case 15 is screwed to the cover terminal portion 9 of the watt-hour meter 1 by upper case fixing screws 10a at two upper end portions.

  The packing 17 is provided to ensure the same waterproof performance as that of the conventional terminal cover 8, and is fitted from the back opening of the upper case 15. Further, the packing 17 is provided with a communication terminal hole 28, a power terminal hole 29 and a screw through hole 10b so that the communication terminal 11a, the power terminal 11b and the upper case fixing screw 10a penetrate the packing 17. It has become.

  The communication terminal 11a and the power supply terminal 11b are composed of a probe 18, a guide 19, and a spring 20, for example, as shown in FIG. These are made of a conductive metal and have a structure that contracts when the probe 18 is pressed to the spring 20 side. The ends of the communication terminal 11a and the power supply terminal 11b on the spring 20 side are connected to the circuit board 12, and the probe 18 passes through the inner case 13 and the packing 17, and is fixed toward the watt-hour meter 1 side. .

  FIG. 4 is a perspective view showing the external appearance of the watt-hour meter 1 as viewed from the back before the communication device 2a for the watt-hour meter according to the first embodiment of the present invention configured as described above is attached to the watt-hour meter 1. It is. As shown in FIG. 4, the positions of the communication terminal 11a of the watt-hour communication device 2a and the communication terminal 4 of the watt-hour meter 1 are aligned, and the power supply terminal 11b of the watt-hour communication device 2a and the watt-hour meter 1 The watt-hour communication device 2a is attached to the cover terminal portion 9 of the watt-hour meter 1 from the front and screwed with the upper case fixing screw 10a. The watt-hour communication device 2a is screwed to the cover terminal portion 9, so that the probe 18 of the communication terminal 11a is pressed against the communication terminal 4 and the probe 18 of the power supply terminal 11b is pressed against the distribution line terminal 3, respectively. The circuit board 12 and the watt-hour meter 1 are connected. At this time, the packing 17 fitted in the upper case 15 is fixed in a state of being tightened between the upper case 15 and the cover terminal portion 9. FIG. 5 is an external perspective view showing a state in which the watt-hour communication device according to the first embodiment of the present invention is attached together with the watt-hour meter 1 in the cosmetic box 7.

  As described above, when the upper case 15 is fixed to the cover terminal portion 9 of the watt hour meter 1 by the upper case fixing screw 10a, the communication terminal 11a is connected to the power meter communication device 2a according to the first embodiment. Since it is connected to the communication terminal 4 of the meter 1 and the power supply terminal 11b is connected to the distribution line terminal 3 of the watt hour meter 1, it is installed without unscrewing the distribution line terminal 3 and removing the distribution line can do. Therefore, the watt-hour meter communication device 2a can be installed without causing a power outage on the customer side, wiring connection work is not required, and installation work can be facilitated.

  Further, as shown in FIG. 5, since the communication device 2a for the watt hour meter is attached to the cover terminal portion 9 of the watt hour meter 1 from the front direction of the watt hour meter 1, the makeup in which the watt hour meter 1 is accommodated. It can be housed together with the watt hour meter 1 in a housing such as a box 7 or an instrument box. For this reason, it is not necessary to secure a new storage space for the watt-hour communication device 2a, and the aesthetic appearance is not impaired.

  Further, a packing 17 is provided between the upper case 15 and the cover terminal portion 9 of the watt hour meter 1 so that the communication device 2a for the watt hour meter is attached to the cover terminal portion 9 of the watt hour meter 1 by the upper case fixing screw 11a. Since the packing 17 is fixed in a tightened state between the upper case 15 and the cover terminal portion 9 of the watt hour meter 1 by being screwed, the same waterproof performance as that of the conventional terminal cover 8 can be secured. Therefore, the work of attaching the terminal cover 8 of the conventional watt-hour meter 1 is eliminated, and the installation workability is improved.

  FIG. 6 is an external perspective view showing a state in which the watt-hour communication device according to the second embodiment of the present invention is attached to the watt-hour meter. The watt-hour communication device according to the second embodiment is implemented when the watt-hour communication device 2a according to the first embodiment cannot be housed in a casing such as a cosmetic box 7 or an instrument box together with the watt-hour meter 1. The power meter communication device 2a of Example 1 is provided separately in a communication device main body 2b and a terminal case 2c. Other configurations are the same as the configurations of the first embodiment shown in FIGS. 1 to 5, and the same portions are denoted by the same reference numerals and the details thereof are omitted.

  As shown in FIG. 6, the terminal case 2 c is attached to the cover terminal portion 9 of the watt hour meter 1 and is housed in a housing (not shown) such as a cosmetic box 7 or an instrument box together with the watt hour meter 1. The main body 2b is provided outside the housing and is connected to the terminal case 2c by a shared cable 23 made of, for example, a four-core cable.

  The terminal case 2c includes an inner case 13 and an upper case 15 as in the case of the first embodiment. The circuit board 12 in the terminal case 2c is equipped with a power supply unit, to which the communication terminal 11a and the power supply terminal 11b are connected. Further, the transmission signal input / output unit mounted on the circuit board 12 of the first embodiment is provided in the communication device main body 2b, and the circuit board 12 is made smaller. Accordingly, the upper case 15 and the inner case 13 are also made smaller. did. Further, the communication terminal 11 a and the power supply unit on the circuit board 12 are connected to the common cable 23 inside the terminal case 2 c. The packing 17 is configured in the same manner as in the first embodiment, and is fixed in a state of being tightened between the terminal case 2 c and the cover terminal portion 9 of the watt hour meter 1.

  The communication device main body 2b houses a transmission signal input / output unit. The transmission signal input / output unit is connected to the communication terminal 11 a and the power supply unit in the terminal case 2 c via the shared cable 23. The terminal case 2c is attached to the watt-hour meter 1 in the same manner as the watt-hour communication device 2a of the first embodiment.

  As described above, according to the watt-hour communication device according to the second embodiment, the terminal case 2c is covered with the cover terminal portion 9 of the watt-hour meter 1 in the same manner as the watt-hour communication device 2a according to the first embodiment. It can be installed without causing a power outage on the customer side, wiring connection work becomes unnecessary, and installation work can be facilitated.

  Further, when the terminal case 2c is fixed to the watt hour meter 1, the packing 17 is fixed in a state of being tightened between the terminal case 2c and the cover terminal portion 9 of the watt hour meter. Since the same waterproof performance can be secured, the work of attaching the terminal cover 8 of the conventional watt-hour meter 1 is eliminated, and the installation workability is improved.

  In addition, since the communication device for the watt hour meter is separated into the communication device main body 2b and the terminal case 2c, the transmission signal input of the communication device for the watt hour meter is used in the case of a power source that requires high lightning resistance and large power capacity. Even when the circuit scale of the output unit is large, the shape of the terminal case 2c installed on the cover terminal portion 9 of the watt-hour meter 1 can be reduced, and the terminal case 2c is stored in a housing such as a decorative box 7 or an instrument box. can do.

  In the third embodiment, in order to further reduce the terminal case 2c of the second embodiment, the terminal case is provided with a communication terminal 11a and a power supply terminal 11b. It is provided in the communication device main body 2b outside the housing such as a box. Other configurations are the same as the configurations of the second embodiment, and the same portions are denoted by the same reference numerals, and the details thereof are omitted.

  The terminal case is configured in the same manner as the terminal case 2c of the second embodiment. The power supply unit and the transmission signal input / output unit are not provided in the terminal case, the circuit board is further reduced, and the upper case 15 and the inner case 13 are also provided. It was made even smaller. Further, the communication terminal 11 a and the power supply terminal 11 b on the circuit board are connected to the common cable 23 inside the terminal case 2 c. The packing 17 is configured in the same manner as in the second embodiment, and is fixed in a state of being tightened between the terminal case 2 c and the cover terminal portion 9 of the watt hour meter 1.

  The communication device main body 2b accommodates a transmission signal input / output unit and a power supply unit. The transmission signal input / output unit is connected to the communication terminal 11a in the terminal case 2c via the shared cable 23, and the power supply unit is connected to the shared cable. 23 is connected to the power supply terminal 11b in the terminal case 2c. The terminal case 2c is attached to the watt hour meter 1 in the same manner as the terminal case 2c of the second embodiment.

  The communication terminal 11a and the power supply terminal 11b provided in the terminal case 2c are connected on the circuit board in the terminal case 2c. However, the communication terminal 11a and the power supply terminal 11b are not provided in the terminal case 2c. The power supply terminal 11b and the common cable 23 may be directly connected by crimping.

  As described above, according to the watt-hour communication device according to the third embodiment, the same effect as that of the watt-hour communication device according to the second embodiment can be obtained. Further, the terminal case 2c can be further reduced in size.

  In the communication device for watt-hour meter according to the fourth embodiment, a rib is provided at a joint portion between the upper case 15 and the packing 17. Other configurations are the same as those in any one of the first to third embodiments, and the same portions are denoted by the same reference numerals, and the details thereof are omitted.

  FIG. 7 is an external perspective view showing the upper case provided with ribs. As shown in FIG. 7, the rib 30 is a convex portion formed at a joint portion between the back opening portion of the upper case 15 and the packing 17, and the packing 17 can be fitted into the rib 30. A rib 30 is formed, and the upper case 15 in which the packing 17 is fitted to the rib 30 is attached to the cover terminal portion 9 of the watt hour meter 1, thereby increasing the adhesion between the cover terminal portion 9 and the packing 17, and waterproofing. Performance further increases.

  As described above, according to the watt-hour communication device according to the fourth embodiment, the same effect as that of the watt-hour communication device according to the first embodiment can be obtained. In addition, the upper case 15 is provided with a rib 30, and the packing 17 is fitted into the rib 30, and the upper case 15 is attached to the cover terminal portion 9 of the watt hour meter 1. The waterproof performance of the joint can be further enhanced.

  FIG. 8 is an enlarged perspective view in which the periphery of the upper case fixing screw 10a according to the fifth embodiment is enlarged. The watt-hour communication device according to the fifth embodiment is configured by adding a configuration for sealing a connection portion between the watt-hour communication device and the watt-hour meter 1. Other configurations are the same as the configurations of any one of the first to fourth embodiments, and the same portions are denoted by the same reference numerals, and the details thereof are omitted.

  As shown in FIG. 8, the communication device for watt-hour meter of Example 5 is provided with a fixing hole 31 in the upper case 15 and a sealing hole 32 in the upper case fixing screw 10a. A wire 33 is passed through the fixing hole 31 and the sealing hole 32, and sealing balls 34 are pressure-bonded to both ends of the wire 33. Thereby, the connection part of the communication apparatus for watt-hour meters and the watt-hour meter 1 is sealed.

  As described above, according to the watt-hour communication device according to the fifth embodiment, the same effect as that of the watt-hour communication device according to the first embodiment can be obtained. Further, since the watt-hour meter communication device is installed in the watt-hour meter, the watt-hour meter can be easily sealed with the wire 33 or the like, so that the sealing workability is improved.

  The present invention is applicable to an automatic meter reading system that automatically measures a metered value of a watt-hour meter at a host terminal.

It is an external appearance perspective view which shows the state which attached the communication apparatus for watt-hours which concerns on Example 1 of this invention to the watt-hour meter. It is a disassembled perspective view of the communication apparatus for watt-hour meters which concerns on Example 1 of this invention. It is a structural diagram which shows the communication terminal and power supply terminal of this invention. It is an external appearance perspective view which shows the state before attaching the communication apparatus for watt-hours which concerns on Example 1 of this invention to a watt-hour meter. It is an external appearance perspective view which shows the state which attached the communication apparatus for watt hour meters which concerns on Example 1 of this invention with the watt hour meter in the decoration box. It is an external appearance perspective view which shows the state which attached the communication apparatus for watt-hours which concerns on Example 2 and Example 3 of this invention to the watt-hour meter. It is an external appearance perspective view of the upper case of the communication apparatus for watt-hour meters which concerns on Example 4 of this invention. It is the elements on larger scale of the upper case of the communication apparatus for watt-hour meters which concerns on Example 5 of this invention. It is an external appearance perspective view which shows the state which attached the communication apparatus for conventional watt-hour meters to the watt-hour meter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wattmeter 2, 2a Wattmeter communication apparatus 2b Communication apparatus main body 2c Terminal case 3 Distribution line terminal 4 Communication terminal 5 Power cable 6 Communication cable 7 Cosmetic box 8 Terminal cover 9 Cover terminal part 10 For terminal cover fixation Screw 10a Upper case fixing screw 10b Screw through hole 11a Communication terminal 11b Power supply terminal 12 Circuit board 13 Inner case 14 Circuit board fixing screw 15 Upper case 16 Inner case fixing screw 16a Inner case fixing screw hole 17 Packing 18 Probe 19 Guide 20 Spring 23 Common Cable 30 Rib 31 Fixing Hole 32 Sealing Hole 33 Wire 34 Sealing Ball

Claims (5)

A communication device for a watt-hour meter that transmits measurement data output from a communication terminal of a watt-hour meter that measures the amount of power used,
A case that houses a transmission signal input / output unit that transmits measurement data measured by the watt-hour meter to the outside and a power supply unit that supplies power to the transmission signal input / output unit;
A communication terminal provided in the case for connecting a communication terminal of the watt-hour meter and the transmission signal input / output unit housed in the case;
A power supply terminal provided in the case, for connecting the distribution line terminal of the watt hour meter and the power supply unit housed in the case;
A fixing member for fixing the case to the cover terminal portion of the watt-hour meter;
With
When the case is fixed to the cover terminal portion of the watt hour meter by the fixing member, the communication terminal is connected to the communication terminal of the watt hour meter, and the power terminal is a distribution line terminal of the watt hour meter. A communication device for a watt-hour meter, characterized in that it is connected to a power meter. A watt-hour meter communication device that transmits measurement data output from a communication terminal of a watt-hour meter that measures the amount of power used,
A communication device main body containing a transmission signal input / output unit for transmitting measurement data measured by the watt-hour meter to the outside;
A case for storing a power supply unit that supplies power to the transmission signal input / output unit;
A communication terminal provided in the case, for connecting a communication meter terminal and a transmission signal input / output unit housed in the communication device body;
A power supply terminal provided in the case, for connecting a power distribution terminal of the watt hour meter and a power supply unit housed in the case;
A common connection for connecting the communication terminal and the transmission signal input / output unit housed in the communication device main body and connecting the power supply unit housed in the case and the transmission signal input / output unit housed in the communication device main body. Cable and
A fixing member for fixing the case to the cover terminal portion of the watt-hour meter;
With
When the case is fixed to the cover terminal portion of the watt hour meter by the fixing member, the communication terminal is connected to a communication terminal of the watt hour meter, and the power terminal is a distribution line terminal of the watt hour meter. A communication device for a watt-hour meter, wherein A watt-hour meter communication device that transmits measurement data output from a communication terminal of a watt-hour meter that measures the amount of power used,
A communication device main body containing a transmission signal input / output unit for transmitting measurement data measured by the watt-hour meter to the outside and a power supply unit for supplying power to the transmission signal input / output unit;
A communication terminal for connecting a communication terminal of the watt-hour meter and a transmission signal input / output unit housed in the communication device body;
A power supply terminal for connecting a distribution line terminal of the watt-hour meter and a power supply unit housed in the communication device body;
A case in which the communication terminal and the power terminal are stored;
The communication terminal housed in the case is connected to the transmission signal input / output unit housed in the communication device body, and the power terminal housed in the case and the power supply portion housed in the communication device body, A shared cable to connect the
A fixing member for fixing the case to the cover terminal portion of the watt-hour meter;
With
When the case is fixed to the cover terminal portion of the watt hour meter by the fixing member, the communication terminal is connected to a communication terminal of the watt hour meter, and the power terminal is a distribution line terminal of the watt hour meter. A communication device for a watt-hour meter, wherein   2. A packing is provided between the case and a cover terminal portion of the watt-hour meter, and a rib is provided at a joint between the case and the packing, and the rib fits into the packing. The communication apparatus for watt-hour meters according to any one of claims 1 to 3.   2. A fixing hole is provided in the case, a sealing hole is provided in the fixing member, and a wire passing through the fixing hole and the sealing hole is crimped by a sealing member to perform sealing. The watt-hour meter communication device according to claim 1.

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