JP2006275792A - 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 in a narrow space, capable of improving external fine appearance. <P>SOLUTION: This device has a first case 22 storing a transmission signal input/output circuit substrate 20 for transmitting to the outside metered data output from a communication terminal 6 of the watt hour meter 1, a first cable 12 for transmitting the metered data from the communication terminal 6 to the transmission signal input/output circuit substrate 20, a second case 23 storing a power source circuit substrate 21, a second cable 13 for connecting a terminal 7 for a lead-in side distribution line of the watt hour meter 1 to the power source circuit substrate 21, a third cable 14 for connecting the power source circuit substrate 21 to the transmission signal input/output circuit substrate 20, and a fixing element 24 for fixing the first case 22 and the second case 23. The first case 22 is arranged on the first side face side to the installation surface of the watt hour meter 1, and the second case 23 is arranged on the second side face side opposite to the first side face, and the fixing element 24 is arranged on the third face side for connecting the first side face to the second side face. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a communication device for a watt hour meter that transmits measurement data obtained from a watt hour meter with a communication function to the outside by wire or wirelessly, and in particular, a structure for attaching the communication device for a watt hour meter to the watt hour meter. About.

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

  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 communication from the outside A wireless unit management system having high security that can prevent intervention is known (for example, see Patent Document 1). In this wireless unit management system, the data collection unit collects data of the wireless unit and manages the wireless unit, and the wireless unit has a plurality of specific data for specifying the unit.

  By the way, as shown in FIG. 17, the conventional watt-hour meter 1 is provided in a housing such as an instrument box 2, a decorative box, a mounting plate, etc., because it does not impair the weather resistance and the appearance. Often housed or mounted. However, since the size of the housing is slightly larger than the watt-hour meter 1, there is almost no space for storing the watt-hour communication device (communication device) 3 when trying to connect it.

Therefore, conventionally, the communication device 3 is installed outside the casing, and the watt hour meter 1 and the watt hour meter communication device 3 are connected by the first cable 4 and the second cable 5.
JP-A-11-298974

  However, as described above, since the conventional communication device for watt hour meter is installed separately from the watt hour meter, it requires a large installation area and is inferior in aesthetic appearance, so improvement is desired.

  The present invention has been made to meet the above-described demand, and an object of the present invention is to provide a communication device for a watt-hour meter that can be installed in a narrow space and can improve the aesthetic appearance. There is.

  A first invention 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 measured by the watt hour meter is A first case in which a transmission signal input / output unit for transmission to the outside is accommodated, and a first cable for sending the measurement data from the communication terminal of the watt-hour meter to the transmission signal input / output unit accommodated in the first case A second case in which the power supply unit is housed, a second cable connecting the lead-in side distribution line terminal of the watt-hour meter and the power supply unit housed in the second case, and the second case. A third cable that connects the power supply unit and the transmission signal input / output unit housed in the first case, and a fixture that fixes the first case and the second case, and The first side of the watt hour meter with respect to the meter installation surface The first case is disposed, the second case is disposed on the second side surface of the watt-hour meter facing the first side surface, and the first case and the second case are connected to a surface connectable to the second case. It is characterized by arranging a fixture.

  According to a second invention, in the first invention, the fixture has a fixture-internal cavity on a line connecting the first case and the second case, and each of the first case and the second case includes: And a fixing member connecting portion provided so as to protrude toward the first side surface and the second side surface of the watt-hour meter, and at least one of the fixing member connecting portions slides inside the cavity inside the fixing device. It is configured to be movable.

  According to a third aspect, in the second aspect, the fixture connecting portion further includes an elastic body having a protrusion at a tip, and the fixture has a hole for accommodating the protrusion, In the case and the second case, after the fixture connecting portion is slid in the fixture internal cavity of the fixture, the protrusion provided on the fixture connecting portion is accommodated in the hole of the fixture. By the above, it is combined with the fixture.

  In a fourth aspect based on the first aspect, each of the first case and the second case is provided so as to protrude toward the first side surface and the second side surface of the watt-hour meter, and the first hook A fixture connecting portion formed with a portion, wherein the fixture has an insertion port into which the fixture connecting portion is inserted, and a second hooking portion that fits into the first hooking portion of the fixture connecting portion. And a case detachment preventing portion for restricting movement of the fixture connecting portion, and the fixture connecting portion is fitted into the first hook portion and the second hook portion after being inserted into the insertion port. It is combined with the said fixture by moving until it contacts the said case detachment prevention part in the state by which it was carried out.

  In a fifth aspect based on any one of the first to fourth aspects, the first case has a first fixing hole, the second case has a second fixing hole, and the first fixing is performed. Sealing is performed by crimping a wire passing through the hole for use and the second fixing hole with lead for sealing.

  A sixth invention is any one of the first to fourth inventions, a terminal cover covering the lead-in side distribution line terminal and the communication terminal, a first screw for attaching the terminal cover, and the terminal cover A second screw for attaching the first case, the first case has a first fixing hole, the second case has a second fixing hole, and the first fixing hole and the first fixing hole. The first wire passing through the first sealing hole formed on the screw is crimped with the first sealing lead, and passed through the second fixing hole and the second sealing hole formed on the second screw. Sealing is performed by pressing the second wire with the second lead for sealing.

  According to a seventh invention, in any one of the first to fourth inventions, the first sealing hole and the second sealing hole are formed so as to cover the lead-in side distribution line terminal and the communication terminal. A terminal cover, wherein the first case has a first fixing hole, the second case has a second fixing hole, and is formed in the first fixing hole and the terminal cover. The first wire passed through the first sealing hole is crimped with the first sealing lead, and the second wire passed through the second fixing hole and the second sealing hole formed in the terminal cover is 2. Sealing is performed by pressure bonding with lead for sealing.

  In an eighth aspect based on any one of the first to fourth aspects, the fixture has a fixing hole, the watt-hour meter has a fixing upper mounting hole, and the fixing hole And the wire passing through the fixing upper mounting hole is crimped with sealing lead to perform sealing.

  According to a ninth aspect, in the first aspect, the first case is formed in the same shape as the second case.

  Furthermore, a tenth invention is characterized in that, in the first invention, the fixture is integrated with the first case or the second case.

  According to the first invention, the first case storing the transmission signal input / output unit and the second case storing the power supply unit are configured separately, and these are arranged on the side surface side of the watt-hour meter to fix the fixture. Since there is only a small space around the watt hour meter, the watt hour meter communication device can be easily installed without removing the watt hour meter. Therefore, it is possible to provide a watt-hour communication device that can be installed in a narrower space than a conventional watt-hour communication device and can improve the appearance. In addition, since the first cable can be connected to the communication terminal of the watt hour meter and the second cable can be connected to the lead-in side distribution line terminal after the installation of the communication device for the watt hour meter, the installation work is facilitated.

  According to the second invention, when watt hour meters having different widths are installed, the interval can be adjusted by sliding at least one of the first case and the second case of the communication device for the watt hour meter. Therefore, it is not necessary to prepare a watt-hour meter communication device that matches the shape of various types of watt-hour meters, so that productivity can be improved and handling is convenient.

  According to the third invention, in the first case and the second case, after the fixture connecting portion is slid in the fixture internal cavity of the fixture, the protrusion provided on the fixture connecting portion has the fixture. Since it is combined with the fixture by being accommodated in the hole, the installation work of the watt-hour communication device can be performed in a short time, and the workability is improved.

  According to the fourth aspect of the present invention, after the fixture connecting portion is inserted into the insertion port provided in the fixture, the first hooking portion of the fixture connecting portion and the second hooking portion of the fixture are fitted. Since it is coupled to the fixture by being moved until it comes into contact with the case detachment preventing portion in the state, installation work of the watt-hour communication device can be performed in a short time, and workability is improved.

  According to the fifth to eighth inventions, after installing the watt-hour meter communication device, the watt-hour meter communication device and the watt-hour meter can be sealed and fixed with the wire, thereby improving the mounting workability. Can do.

  According to the ninth and tenth aspects of the invention, the manufacturing cost can be reduced because the watt-hour communication device can be easily manufactured.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each embodiment described below, the same or corresponding components will be described with the same reference numerals.

  FIG. 1 is an external perspective view showing a state in which the watt-hour meter communication device according to the first embodiment of the present invention is attached to the watt-hour meter.

  The watt-hour meter 1 includes a communication terminal 6 and a lead-side distribution line terminal 7 for sending measurement data to the watt-hour communication device. The watt-hour meter 1 has a box shape, and the back surface (installation surface of the watt-hour meter) with respect to the front surface (surface having a substantially square shape) is attached to a mounting portion (not shown).

  The communication device for the watt hour meter is attached to the first case 22 attached to the right side with respect to the installation surface of the watt hour meter 1, and to the left side of the installation surface of the watt hour meter 1 (the side opposite to the right side). A second case 23, a fixture 24 that is disposed on the upper side of the watt hour meter 1 (the side that connects the right side and the left side) and that fixes the first case 22 and the second case 23 to the watt hour meter 1, And the third cable 14 that connects the first case 22 and the second case 23. The first case 22 is connected to the communication terminal 6 of the watt hour meter 1 by the first cable 12, and the second case 23 is connected to the lead-in side distribution line terminal 7 of the watt hour meter 1 by the second cable 13. Yes.

  FIG. 2 is a cross-sectional view showing the watt-hour communication device according to the first embodiment of the present invention cut in the vertical direction, and FIG. 3 is an enlarged view showing a part thereof. FIG. 4 is an exploded perspective view showing a part of the structure of the watt-hour communication device according to the first embodiment of the present invention, and FIG. 5 is an exploded perspective view showing the remaining part in an exploded manner.

  The first case 22 is made of resin, for example, and has a box shape with an open bottom. The first case 22 houses the transmission signal input / output circuit board 20. The transmission signal input / output circuit board 20 corresponds to the transmission signal input / output unit of the present invention. The transmission signal input circuit receives the measurement data measured by the watt hour meter 1 and the measurement data received by the transmission signal input circuit is wired. Alternatively, a transmission signal output circuit for transmitting to an external data reading device or a centralized management center by radio is included.

  The transmission signal input / output circuit board 20 is connected to the communication terminal 6 of the watt hour meter 1 by the first cable 12. Specifically, the first cable 12 is connected to the communication terminal 6 by caulking the first connector 10 provided at one end of the first cable 12.

  The other end of the first cable 12 (the structure for attaching the third cable 14 to the first case 22 is the same, so that only the first cable 12 will be described below) is shown in the enlarged view of FIG. As shown in the figure, the first cover 18 fitted in the lower opening of the first case 22 is connected to the transmission signal input / output circuit board 20 through the first cover 18. As shown in the enlarged view of FIG. 3 and the exploded perspective view of FIG. 4, an O-ring 17 is attached to the outside of the first cover 18 as a waterproof measure between the first cable 12 and the first cover 18. . A first holder 15 that presses the O-ring 17 against the first cover 18 is provided outside the O-ring 17. Further, the O-ring 17 and the first holder 15 are placed between the O-ring 17 and the first cover 18. The 2nd holder 16 fixed to the 1st cover 18 by the screw type in the shape of pinching is provided.

  As shown in the exploded perspective view of FIG. 4, the transmission signal input / output circuit board 20 described above is inserted and fixed in a guide groove protruding from the inside of the first cover 18. The first case 22 is fixed with screws 25.

  The second case 23 is made of, for example, resin, and has a box shape with an open bottom. The second case 23 accommodates the power circuit board 21. The power supply circuit board 21 corresponds to the power supply unit of the present invention, converts an AC voltage into a DC voltage, and supplies the converted DC voltage to the transmission signal input / output circuit board 20 in the first case 22.

  The power supply circuit board 21 is connected to the lead-in side distribution line terminal 7 of the watt-hour meter 1 by the second cable 13. Specifically, the second cable 13 is connected to the lead-side distribution line terminal 7 by caulking the second connector 11 provided at one end of the second cable 13.

  The other end of the second cable 13 (the structure for attaching the third cable 14 to the second case 23 is also the same, so only the second cable 13 will be described below) is enlarged in FIG. Similarly to the structure of the first case 22 shown, the second cover 19 fitted in the lower opening of the second case 23 is passed through and connected to the power circuit board 21. As shown in the exploded perspective view of FIG. 4, an O-ring 17 is attached to the outside of the second cover 19 as a waterproof measure between the second cable 13 and the second cover 19. A first holder 15 that presses the O-ring against the second cover 19 is provided outside the O-ring 17, and the O-ring 17 and the first holder 15 are sandwiched between the second cover 19. A second holder 16 is provided which is fixed to the second cover 19 by a screw type.

  As shown in the exploded perspective view of FIG. 4, the power supply circuit board 21 described above is inserted and fixed in a guide groove protruding from the inside of the second cover 19. Thus, the second case 23 is fixed.

  The transmission signal input / output circuit board 20 accommodated in the first case 22 and the power supply circuit board 21 accommodated in the second case 23 are connected by a third cable 14. The structure of the portion connecting the third cable 14 and the first case 22 is the same as the structure of the portion connecting the first cable 12 and the first case 22. Further, the structure of the portion connecting the third cable 14 and the second case 23 is the same as the structure of the portion connecting the second cable 13 and the second case 23.

  The first case 22 and the second case 23 are fixed to the fixture 24 by caulking. The fixture 24 is made of, for example, resin or metal.

  As shown in FIG. 6, the watt-hour communication device configured as described above removes the watt-hour meter 1 in a state where the watt-hour meter 1 is installed in a housing made up of, for example, a meter box 2. The fixture 24 in the vacant space at the top of the watt hour meter 1, the first case 22 in the vacant space on the right side when viewed from the front of the watt hour meter 1, and the second case 23 from the front of the watt hour meter 1. In the left vacant space, the watt hour meter 1 is inserted and installed from the front direction. Thereafter, the first cable 12 is connected to the communication terminal 6, and the second cable 13 is connected to the lead-in side distribution line terminal 7.

  FIG. 7 shows a state in which a watt-hour communication device is attached to the outer periphery of the watt-hour meter 1 attached in the decorative box 8. Also in this case, as in the case described above, the fixture 24, the first case 22 and the second case 23 are attached without removing the watt-hour meter 1, and the first cable 12 and the second cable 13 are attached. A connection is made.

  As described above, according to the watt-hour meter communication device according to the first embodiment, the watt-hour meter 1 is installed in the housing, and the watt-hour meter 1 is installed in an empty space without removing the watt-hour meter 1. Since the meter communication device is installed, and the first cable 12 and the second cable 13 can be attached to the watt hour meter 1 after the installation, the attachment work becomes easy and the work efficiency can be improved. .

  In addition, since the watt-hour communication device according to the first embodiment can be housed together with the watt-hour meter 1 in, for example, a housing such as the meter box 2 or the decorative box 8, the conventional watt-hour communication device. It can be installed in a narrower space, and the appearance can be improved.

  The watt-hour communication device according to the second embodiment of the present invention can adjust the horizontal position of the first case 22 and the second case 23 with respect to the fixture 24 in the watt-hour communication device according to the first embodiment. Features.

  FIG. 8 is a cross-sectional view showing the watt-hour communication device according to the second embodiment of the present invention cut in the vertical direction. Inside the fixture 24, a fixture internal cavity 30 is provided on a straight line connecting the first case 22 and the second case 23. At the upper part of the first case 22, there is provided a first fixture connection portion 31 that can be inserted into the fixture cavity 30 and can slide. In addition, a second fixture connection portion 32 that is inserted into the fixture internal cavity 30 and can slide is provided on the upper portion of the second case 23.

  In the above-described configuration, one or both of the first fixture connection portion 31 and the second fixture connection portion 32 are inserted into the fixture internal cavity 30 and slid, so that the first case 22 and the second case 23 are inserted. The distance between the first case 22 and the second case 23 is adjusted by moving either one or both of these.

  According to the watt-hour communication device according to the second embodiment, when the watt-hour meters 1 having different widths are installed, the distance between the first case 22 and the second case 23 is adjusted and installed. Therefore, versatility can be improved.

  In the watt-hour communication device according to the second embodiment, both the first case 22 and the second case 23 can be moved in the horizontal direction, but the first case 22 and the second case 23 are configured. It is possible to configure such that only one of them is moved. According to this configuration, it is possible to reduce labor for installing the watt-hour communication device, and workability is improved.

  The watt-hour communication device according to the third embodiment of the present invention is the same as the watt-hour communication device according to the first embodiment except that the first case 22 and the second case 23 are attached to the fixture 24 with holes and protrusions. It is characterized by performing by fitting.

  FIG. 9 is a perspective view showing a structure for attaching the first case to the fixture in the watt-hour communication device according to Embodiment 3 of the present invention.

  As shown in FIG. 9A, an elastic plate 40 having a protruding portion 41 is provided on the first fixing member connecting portion 31 at the upper portion of the first case 22. The elastic plate 40 corresponds to the elastic body of the present invention. Further, the fixing tool 24 is provided with a first fixing hole 42 and a second fixing hole 43 having a shape in which the protruding portion 41 can be accommodated. There are two types of watt-hour covers (see FIG. 11) of watt-hour meters with communication functions that are currently used, one for 5A and 30A having a small shape and one for 120A having a large shape. When the watt-hour communication device is attached to the watt-hour meter 1 for 5A and 30A, the second fixed hole 43 when the watt-hour communication device is attached to the watt-hour meter 1 for 120A. The protrusion 41 is fitted into the first case 22 and the first case 22 and the fixture 24 are coupled. The coupling between the second case 23 and the fixture 24 is also performed in the same manner as described above.

  When changing the coupling position, for example, when changing from 5A and 30A to 120A, as shown in FIG. 9 (B), the projection 41 fitted in the first fixing hole 42 is moved with a finger or a screwdriver. The protrusion 41 is removed from the first fixing hole 42 by pushing in the direction indicated by the arrow 44 from above. Then, as shown in FIG. 9C, the first case 22 is pulled by hand in the direction indicated by the arrow 45 and moved until the protrusion 41 faces the second fixing hole 43. Then, at the position where the protrusion 41 faces the second fixing hole 43, the protrusion 41 moves in the direction indicated by the arrow 46 due to the elasticity of the elastic plate 40 and is fitted into the fixing hole 43. Thereby, the 1st case 22 and the fixture 24 are couple | bonded.

  In addition, the change of the coupling position between the second case 23 and the fixture 24 is also performed by the same method as described above. Also, when changing from 120A to 5A and 30A, the coupling position can be changed by the same method as described above.

  According to the watt-hour communication device according to the third embodiment, the first case 22 and the second case 23 are configured such that the first fixture connection portion 31 is slid by the fixture internal cavity 30 of the fixture 24, Since the protrusion 41 provided on the first fixture connection portion 31 is accommodated in the first fixture hole 42 or the second fixture hole 43 of the fixture 24, it is coupled to the fixture 24. The installation work of the apparatus can be performed in a short time, and workability is improved.

  In the watt-hour communication device according to the third embodiment described above, the fixture 24 is provided with two holes, the first fixing hole 42 and the second fixing hole 43, which are currently used. This is because there are two types of watt-hour cover 50 of the watt-hour meter with communication function for 5A, 30A and 120A. Therefore, when the watt-hour meter 1 having other shapes appears, it can be configured to increase the hole at a position corresponding to the size. When both the first case 22 and the second case 23 can move, the above structure is also provided on the second case 23 side.

  The watt-hour communication device according to the fourth embodiment of the present invention is the watt-hour communication device according to the first embodiment, wherein the coupling between the fixture 24 and the first case 22 or the second case 23 is a concave portion and a convex portion. It is characterized by performing by fitting.

  FIG. 10: is a perspective view which shows the structure for attaching a 1st case to a fixing tool in the communication apparatus for watt-hours which concerns on Example 4 of this invention.

  As shown in FIG. 10A, a case hooking portion 60 is formed in the first fixing member connecting portion 31 at the top of the first case 22. Further, an insertion port 61 into which the first fixture connection part 31 of the first case 22 is inserted is provided at the bottom of the fixture 24, and the insertion port 61 extends along the bottom of the fixture 24. In addition, a hook 62 for the fixture projecting inside is provided. Further, a case detachment preventing portion 63 for preventing the first fixture connecting portion 31 from being detached from the fixture 24 is provided at the bottom end of the fixture 24.

  In the above configuration, the fixture 24 and the first case 22 are coupled as follows. That is, first, as shown in FIG. 10 (A), the first fixture connecting portion 31 formed at the upper portion of the first case 22 and the insertion port 61 provided in the fixture 24 are opposed to each other. From this state, the first fixture connecting portion 31 is moved in the direction of the arrow 64 and inserted into the insertion port 61. FIG. 10B shows a state where the first fixture connection part 31 is inserted into the insertion port 61. From this state, as shown in FIG. 10C, the hook 60 of the first case 22 is fitted to the hook 62 of the fixture 24, and the first case 22 is moved in the direction of the arrow 65.

  Then, the first fixture connecting portion 31 comes into contact with the case detachment preventing portion 63 so that the first fixture connecting portion 31 cannot move any more, whereby the coupling between the fixture 24 and the first case 22 ends. The case detachment preventing unit 63 has a role of preventing the first case 22 from being removed after the watt-hour communication device is attached to the watt-hour meter 1. The coupling between the second case 23 and the fixture 24 is also performed in the same manner as described above.

  According to the watt-hour communication device according to the fourth embodiment, the first case 22 includes the first fixture connection portion 31 after the first fixture connection portion 31 is inserted into the insertion port 61 of the fixture 24. Since the second case 23 is also coupled to the fixture 24 in the same manner by being moved in the direction of the arrow 65, the installation work of the communication device for the watt-hour meter can be performed in a short time. , Workability is improved.

  The watt-hour communication device according to Embodiment 5 of the present invention is the watt-hour communication device according to Embodiments 1 to 3, in which both the first case 22 and the second case 23 are connected together by a wire. And sealed.

  FIG. 11 is an external perspective view showing the structure of a watt-hour communication device according to Embodiment 5 of the present invention.

  A first fixing hole 52 is provided in the lower part of the first case 22, and a second fixing hole 53 is provided in the lower part of the second case 23. A wire 54 is passed through the first fixing hole 52 and the second fixing hole 53 so as to pass between the power amount cover 50 and the lower terminal cover 51 of the watt hour meter 1, and both ends of the wire 54 are sealed. The wattmeter communication device is sealed and fixed by crimping it through a small hole (not shown) provided in the lead 55 for use.

  According to the watt-hour communication device according to the fifth embodiment, the watt-hour communication device can be sealed using the wire 54 together with the watt-hour meter 1 after installing the watt-hour communication device. Can be improved.

  The watt-hour communication device according to the sixth embodiment of the present invention is the watt-hour communication device according to the first to third embodiments, wherein the first case 22 and the second case 23 are separately attached to the terminal cover with wires. It is characterized by being connected to a screw for sealing.

  FIG. 12 is an external perspective view showing the structure of a watt-hour communication device according to Embodiment 5 of the present invention.

  A first fixing hole 52 is provided in the lower part of the first case 22, and a second fixing hole 53 is provided in the lower part of the second case 23. The terminal cover 51 is attached to the main body of the watt hour meter 1 with a first terminal cover attaching screw 56a and a second terminal cover attaching screw 56b. The first terminal cover mounting screw 56a is provided with a first sealing hole 56c, and the second terminal cover mounting screw 56b is provided with a second sealing hole 56d.

  The first wire 54a is passed through the first fixing hole 52 of the first case 22 and the first sealing hole 56c of the first terminal cover mounting screw 56a of the watt hour meter 1, and both ends of the first wire 54a are connected to the first end. The first case 22 of the watt-hour communication device is sealed and fixed by crimping through a small hole (not shown) provided in the sealing lead 55a.

  Similarly, the second wire 54b is passed through the second fixing hole 53 of the second case 23 and the second sealing hole 56d of the second terminal cover mounting screw 56b of the watt-hour meter 1, and both ends of the second wire 54b. Is sealed through the small hole (not shown) provided in the second sealing lead 55b to seal and fix the second case 23 of the watt-hour communication device.

  According to the watt-hour communication device according to the sixth embodiment, the watt-hour communication device can be sealed using the wire 54 together with the watt-hour meter 1 after the watt-hour communication device is installed. Can be improved. Further, by performing sealing at two locations using a short wire, it is possible to more reliably seal and fix the energy meter communication device as compared to the energy meter communication device according to the fifth embodiment.

  The watt-hour communication device according to the seventh embodiment of the present invention is the watt-hour communication device according to the first to third embodiments, wherein the first case 22 and the second case 23 are separately connected to the terminal cover with wires. It is designed to be connected to the hole and sealed.

  FIG. 13: is an external appearance perspective view which shows the structure of the communication apparatus for watt-hour meters which concerns on Example 7 of this invention.

  A first fixing hole 52 is provided in the lower part of the first case 22, and a second fixing hole 53 is provided in the lower part of the second case 23. The terminal cover 51 has a first sealing hole 57a and a second sealing hole 57b.

  The first wire 54a is passed through the first fixing hole 52 of the first case 22 and the first sealing hole 57a provided in the terminal cover 51 of the watt hour meter 1, and both ends of the first wire 54a are used for the first sealing. By sealing through a small hole (not shown) provided in the lead 55a, the first case 22 of the watt-hour communication device is sealed and fixed.

  Similarly, the second wire 54b is passed through the second fixing hole 53 of the second case 23 and the second sealing hole 57b of the terminal cover 51 of the watt hour meter 1, and both ends of the second wire 54b are used for the second sealing. By sealing the lead case 55 through a small hole (not shown) provided in the lead 55b, the second case 23 of the watt-hour communication device is sealed and fixed.

  According to the watt-hour communication device according to the seventh embodiment, after installing the watt-hour communication device, the watt-hour communication is performed using the first wire 54a and the second wire 54b together with the watt-hour meter 1. Since the apparatus can be sealed, workability can be improved. Furthermore, by performing sealing at two locations using a short wire, it is possible to more reliably seal and fix the watt-hour communication device as compared to the fourth embodiment.

  The watt-hour meter communication device according to the eighth embodiment of the present invention is the watt-hour meter communication device according to the first to third embodiments, wherein the fixture and the watt-hour meter are connected and sealed with a wire. It is a thing.

  FIG. 14 is an external perspective view showing the structure of a watt-hour communication device according to Embodiment 8 of the present invention.

  A fixing hole 58 is provided in the upper part of the fixing tool 24, and a fixing upper mounting hole 59 is provided in the upper part of the watt-hour meter 1. Then, the wire 54 is passed through the fixing hole 58 of the fixing tool 24 and the fixing upper mounting hole 59 of the watt hour meter 1, and both ends of the wire 54 are small holes (not shown) provided in the sealing lead 55. Sealing and fixing of the watt-hour communication device is performed by crimping through.

  According to the watt-hour communication device according to the eighth embodiment, the watt-hour communication device can be sealed using the wire 54 together with the watt-hour meter 1 after the watt-hour communication device is installed. Can be improved.

  The watt-hour communication device according to the ninth embodiment of the present invention is the watt-hour communication device according to the first embodiment, in which the first case 22 and the second case 23 have the same structure.

  FIG. 15 is an exploded perspective view showing the structure of the case and cover of the watt-hour communication device according to Embodiment 9 of the present invention.

  The first case 22 and the second case 23 are manufactured as cases having the same structure. When the case is installed on the right side of the watt hour meter 1, it is used as the first case 22 and installed on the left side. The second case 23 is used.

  The first cover 18 and the second cover 19 are manufactured as covers having the same structure. When the cover is inserted into the first case 22, the first cover 18 and the second cover 19 are used as the first cover 18 and inserted into the second case 23. In this case, the second cover 19 is used. The cover can be inserted without rotating with respect to the case or rotated 180 degrees. With this structure, the first cable 12, the second cable 13, and the third cable 14 can be connected so that the first cable 12, the second cable 13, and the third cable 14 do not interfere with the watt hour meter 1. ing.

  According to the electricity meter communication device according to the ninth embodiment, the mold cost of the case and the cover can be reduced to half.

  The watt-hour communication device according to the tenth embodiment of the present invention is obtained by integrating the fixture 24 and the first case 22 or the second case 23 in the watt-hour communication device according to the first embodiment. .

  FIG. 16: is sectional drawing which cut | disconnects and shows the communication apparatus for watt-hours which concerns on Example 10 of this invention at the orthogonal | vertical direction.

  The third case 70 is configured by integrating the second case 23 and the fixture 24 in the watt-hour communication device according to the first embodiment. The first case 22 is detachable from the third case 70. As a structure for connecting the first case 22 to the third case 70, the structures shown in the first to fourth embodiments described above can be employed.

  According to the watt-hour communication device according to the tenth embodiment, the number of parts can be reduced, so that the mold cost and the manufacturing cost can be suppressed.

  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 sectional drawing which cut | disconnects and shows the communication apparatus for watt-hour meters which concerns on Example 1 of this invention to the orthogonal | vertical direction. It is an enlarged view which expands and shows a part of 1st case of FIG. It is a disassembled perspective view which decomposes | disassembles and shows a part of structure of the communication apparatus for watt-hour meters which concerns on Example 1 of this invention. It is a disassembled perspective view which decomposes | disassembles and shows the other part of the structure of the communication apparatus for watt-hour meters which concerns on Example 1 of this invention. It is a 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 in a meter box. It is a perspective view which shows the state which attached the communication apparatus for watt-hours which concerns on Example 1 of this invention in the decoration box. It is sectional drawing which cut | disconnects and shows the communication apparatus for watt-hour meters which concerns on Example 2 of this invention to the orthogonal | vertical direction. It is a perspective view which shows the structure for attaching the 1st case to a fixture in the communication apparatus for watt-hours which concerns on Example 3 of this invention. It is a perspective view which shows the structure for attaching the 1st case to a fixture in the communication apparatus for watt-hours which concerns on Example 4 of this invention. It is an external appearance perspective view which shows the structure 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 structure of the communication apparatus for watt-hour meters which concerns on Example 6 of this invention. It is an external appearance perspective view which shows the structure of the communication apparatus for watt-hour meters which concerns on Example 7 of this invention. It is an external appearance perspective view which shows the structure of the communication apparatus for watt-hour meters which concerns on Example 8 of this invention. It is a disassembled perspective view which shows the structure of the case and cover of the communication apparatus for watt-hour meters which concerns on Example 9 of this invention. It is sectional drawing which cut | disconnects and shows the communication apparatus for watt-hour meters which concerns on Example 10 of this invention to the orthogonal | vertical direction. It is an external appearance perspective view which shows the installation state of the conventional instrument box, the watt-hour meter, and the communication apparatus for watt-hour meters.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electricity meter 2 Case 6 Communication terminal 7 Pull-in side distribution line terminal 8 Cosmetic box 10 1st connector 11 2nd connector 12 1st cable 13 2nd cable 14 3rd cable 15 1st holder 16 2nd holder 17 O Ring 18 First cover 19 Second cover 20 Transmission signal input / output circuit board 21 Power circuit board 22 First case 23 Second case 24 Fixing tool 25 Screw 30 Cavity 31 in fixing tool First fixing tool connection portion 32 Second fixing tool Connection portion 40 Elastic plate 41 Projection portion 42 First fixing hole 43 Second fixing hole 50 Electricity counting cover 51 Terminal cover 52 First fixing hole 53 Second fixing hole 54 Wire 54a First wire 54b Second wire 55 Sealing Lead 55a first sealing lead 55b second sealing lead 57a first sealing hole 57b second sealing hole 58 fixing hole 59 fixing upper mounting hole 60 62 hook portion 61 insertion opening 63 case disengagement preventing portion 70 third case

Claims (10)

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 first case containing a transmission signal input / output unit for transmitting measurement data measured by the watt-hour meter to the outside;
A first cable for sending the measurement data from a communication terminal of the watt-hour meter to a transmission signal input / output unit housed in the first case;
A second case in which the power supply is stored;
A second cable connecting the lead-side distribution line terminal of the watt-hour meter and the power supply unit housed in the second case;
A third cable connecting the power supply unit stored in the second case and the transmission signal input / output unit stored in the first case;
A fixing tool for fixing the first case and the second case;
The first case is disposed on the first side surface of the watt hour meter with respect to the installation surface of the watt hour meter, and the second case is disposed on the second side surface of the watt hour meter facing the first side surface. The communication device for watt-hour meters, wherein the fixture is arranged on a surface where the first case and the second case can be connected. The fixture has a fixture internal cavity on a line connecting the first case and the second case,
Each of the first case and the second case has a fixture connecting portion provided so as to protrude to the first side surface and the second side surface of the watt-hour meter,
The wattmeter communication device according to claim 1, wherein at least one of the fixture connection portions is configured to be slidable inside the cavity in the fixture. The fixture connecting portion further includes an elastic body having a protrusion at the tip,
The fixture has a hole for accommodating the protrusion,
In the first case and the second case, after the fixture connecting portion is slid in the fixture internal cavity of the fixture, the protrusion provided on the fixture connecting portion is accommodated in the hole of the fixture. The watt-hour communication device according to claim 2, wherein the communication device is coupled to the fixture. Each of the first case and the second case has a fixture connection portion provided so as to protrude toward the first side surface and the second side surface side of the watt-hour meter, and having a first hook portion. ,
The fixture is
An insertion slot into which the fixture connecting portion is inserted;
A second hook portion that fits into the first hook portion of the fixture connection portion;
A case detachment preventing portion for restricting movement of the fixture connecting portion;
The fixing member connecting portion is moved until the first hooking portion and the second hooking portion are fitted to each other until they are brought into contact with the case detachment preventing portion after being inserted into the insertion port. The communication device for an electric energy meter according to claim 1, wherein the communication device is coupled to a fixture. The first case has a first fixing hole;
The second case has a second fixing hole;
5. The electric energy according to claim 1, wherein sealing is performed by crimping a wire that has passed through the first fixing hole and the second fixing hole with lead for sealing. 6. Communication device for metering. A terminal cover covering the lead-in side distribution line terminal and the communication terminal;
A first screw for attaching the terminal cover;
A second screw for attaching the terminal cover;
The first case has a first fixing hole;
The second case has a second fixing hole;
The first wire passing through the first fixing hole and the first sealing hole formed in the first screw is pressure-bonded with the first sealing lead, and the second fixing hole and the second screw are bonded to each other. 5. The watt-hour meter according to claim 1, wherein the second wire passing through the formed second sealing hole is pressure-bonded with a second sealing lead to perform sealing. Communication equipment. A terminal cover disposed so as to cover the lead-in side distribution line terminal and the communication terminal, and further formed with a first sealing hole and a second sealing hole;
The first case has a first fixing hole;
The second case has a second fixing hole;
A first wire passing through the first fixing hole and the first sealing hole formed in the terminal cover is pressure-bonded with a first sealing lead, and is formed in the second fixing hole and the terminal cover. 5. The watt-hour meter according to claim 1, wherein the second wire passing through the second sealing hole is pressure-bonded with a second sealing lead. 6. Communication device. The fixture has a fixing hole,
The watt-hour meter has a fixing upper mounting hole,
The electric energy according to any one of claims 1 to 4, wherein sealing is performed by crimping a wire that has passed through the fixing hole and the fixing upper mounting hole with lead for sealing. Communication device for metering.   The wattmeter communication device according to claim 1, wherein the first case is formed in the same shape as the second case.   The wattmeter communication device according to claim 1, wherein the fixture is integrated with the first case or the second case.