JP4607729B2 - High frequency signal injection device - Google Patents

Description

  The present invention relates to an apparatus for injecting a high frequency signal into a power line used for power line carrier communication (PLC).

  In order to inject a high-frequency signal into a power line as described above, conventionally, a capacitive coupling such as a coupling capacitor is often used. However, in order to use this capacitive coupling, it is necessary to connect a capacitor to the power line, which is not applicable when the charging part does not appear on the surface, and there is a possibility that the power lines may be short-circuited. There is.

  Therefore, in Patent Document 1, for example, a cylindrical magnetic body that surrounds the power line and divided in two in the axial direction is provided, and a signal line for the high-frequency signal is wound around a part of the magnetic body in the circumferential direction. A signal injection device that rotates and injects the high-frequency signal into a power line without connection has been proposed. A case is provided outside the magnetic body, and the power line is fixed by making the hole diameter of the entrance of the case smaller than the hole diameter of the magnetic body so that the magnetic body does not contact the power line, and the gap between the magnetic bodies is increased. Ensures stability.

However, such a signal injection device also has a problem that the magnetic body must be attached to the power line and cannot be attached if there is not enough space between the power lines inside the distribution board or distribution board. . Therefore, in such a case, conventionally, a high-frequency signal is injected into the power line by causing the signal line to run along the power line.
Japanese Patent Application Laid-Open No. 2004-356776

  However, in the above-described conventional technology, an appropriate length is required for the signal line along the power line, and depending on the actual work site, there may be a case where a coupling section of that length cannot be secured.

  An object of the present invention is to provide a high-frequency signal injection device capable of shortening a coupling section of signal lines to be aligned when injecting a high-frequency signal without being connected to a power line.

The high-frequency signal injection device according to the present invention is used for power line carrier communication, and in a device for injecting a high-frequency signal into a power line, a signal line for injecting the high-frequency signal and a plurality of the signal lines formed therein Each of the mounting portions is made of an electrically insulating material, and a pair of curved members curved in a substantially semicircular arc are arranged so that the concave portions thereof are opposed to each other. , the circumferential direction of the one end connected by a hinge, the other end that is opened and closed, together with formed by formed so as to be able to saddled power line in said recess, connected to each other by the hinge portion, the signal line Is a spiral pattern formed from one end side to the other end side on the inner or outer peripheral surface of the bending member, and is connected to the spiral pattern on one end side of the bending member. And a connection pattern formed on the end face of the hinge portion and a connection pattern connected to the spiral pattern and in contact with the open end side of the corresponding bending member on the other end side of the bending member. are, Kakaekomi power line in recesses of the pair of curved members, by closing the other end, the signal lines are curved element of the signal lines and electrically paired with the other end of its closed Ji curved element It is characterized in that it is electrically connected to form a loop, and is electrically connected to the signal line of the adjacent mounting portion at the hinge portion and connected to the next loop.

Further, in the high frequency signal injection device of the present invention, a signal line for injecting the high frequency signal and the signal line are formed in the device for injecting the high frequency signal into the power line , which is used for power line carrier communication. A plurality of mounting parts connected to each other, and each mounting part is made of an electrically insulating material, and a pair of curved members curved in a substantially semicircular arc are arranged so that the recesses face each other. The circumferential end is connected by a hinge, and the other end is freely openable / closable, so that the power line can be held in the recess, and the hinge part is connected to each other, and the pair of curved members are made possible intersect at an arbitrary angle by being arranged offset in the axial direction of the hinge, the signal line, the inner peripheral or outer peripheral surface of the curved member In the vicinity of the hinge, the contact pattern to be formed toward the other end from one end side in the axial direction of the hinge, continuous with the contact pattern, formed on one end side in the axial direction of the hinge in the curved member, adjacent A connection pattern with a mounting portion and a connection pattern that is connected to the connection pattern and is formed on the opposite end surfaces of the pair of bending members on the other end side of the hinge in the bending member. By holding the power line in the recesses of the pair of bending members and closing the other end, the signal line is electrically connected to the signal line of the bending member that forms a pair between the end surfaces of the closed bending member. forming a loop Te hinge part conducts the electrical signal lines of the trims portions of adjacent you and being connected to the next loop.

  Furthermore, in the high-frequency signal injection device according to the present invention, the attachment portion is detachable at the hinge portion.

  As described above, the high-frequency signal injection device of the present invention is used for power line carrier communication. In the device for injecting a high-frequency signal into the power line, the high-frequency signal from the signal source of the high-frequency signal to be superimposed on the power line is received. Given, along the power line, the signal line for injecting the high-frequency signal into the power line is wound around the power line using a mounting member, not in parallel.

  Therefore, when injecting a high-frequency signal without being connected to the power line, it is possible to shorten the coupling section of the signal lines to be along.

[First Embodiment]
FIG. 1 is a diagram showing a schematic configuration of a high-frequency signal injection device 1 according to the first embodiment of the present invention. The high-frequency signal injection device 1 is used for power line carrier communication (PLC), and is used for injecting a high-frequency signal into power lines (main lines) 2 and 3. The injected PLC signal is supplied to each residence through lead-in lines 4 and 5.

  The high-frequency signal injection device 1 is configured by including signal lines 11 and 12 in a PLC signal generator 10 which is a signal source of a high-frequency signal to be superimposed on a power line. The signal lines 11 and 12 are attached to accessible portions of the power lines 2 and 3 in a distribution board or switchboard of an apartment or the like, or on a utility pole.

  It should be noted that, in the present invention, the signal lines 11 and 12 that have been conventionally provided only in parallel with the power lines 2 and 3 are wound around the power lines 2 and 3 as described later. Therefore, when injecting a high-frequency signal without being connected to the power lines 2 and 3, the coupling section H1 of the signal lines 11 and 12 to be along can be shortened. The connecting section H1 is required to be about 1 m as long as it is aligned as in the conventional case, but can be shortened to about 10 cm in the present invention.

  2 is an exploded perspective view showing a method of winding the conductive member 71 around the power lines 2 and 3 in the high-frequency signal injection device according to the first embodiment of the present invention, and FIG. 3 schematically shows the winding method. FIG. It should be noted that in the present embodiment, the conductive member 71 to be the signal lines 11 and 12 is formed on the attachment member 72 that is attached to the power lines 2 and 3. The mounting member 72 is made of an electrically insulating material, and a pair of curved members 73 and 74 curved in a substantially semicircular arc shape are disposed so that the concave portions thereof are opposed to each other, and one end in the circumferential direction is connected by a hinge 75, Since the other end side can be freely opened and closed, a plurality of attachment portions 76 formed so that the power lines 2 and 3 can be held by the recesses are connected by a hinge 75 portion.

  The conductive member 71 is formed from the curved members 73 and 74 to the hinge 75 portion, and is electrically connected to the conductive member 71 of the curved members 74 and 73 paired on the other end side of the closed curved members 73 and 74 and loops. And is electrically connected to the conductive member 71 of the adjacent mounting portion 76 at the hinge 75 portion and connected to the next loop. For this reason, as the conductive member 71, a spiral pattern 71a is formed from one end side to the other end side on the inner circumference or outer circumference (inner circumference in FIG. 2) surfaces of the bending members 73 and 74. A connection pattern 71b is formed with the attachment portion 76 adjacent to the end surface of the hinge 75 portion, and a connection pattern 71c is formed on the other end side to contact the open ends of the corresponding bending members 74 and 73.

  The connection pattern 71c is not formed on the outer peripheral side of the end face on the other end side of the bending members 73, 74 and the edge on the side of the adjacent bending member 73, 74 in order to prevent a short circuit. This region is formed wider than the width of the spiral pattern 71a. Further, a locking projection 77 is formed on one end surface of the bending members 73 and 74, and a locking recess 78 is formed on the other end surface, and the end surfaces of the bending members 73 and 74 are abutted to each other. By fitting the stop protrusion 77 into the locking recess 78, the connection pattern 71c on the bending member 73 side and the connection pattern 71c on the bending member 74 side are securely connected.

  Therefore, as shown in FIG. 3A, after the power lines 2 and 3 are arranged in the recesses with the other end sides of the bending members 73 and 74 of the mounting portions 76 open, in FIG. As shown, the mounting member 72 and the conductive member 71 formed thereon can be attached to the power line 2 by closing the other end, and the conductive member 71 is substantially spiral around the power lines 2 and 3. Will be wound on. Thus, the conductive member 71 can be easily wound around the power lines 2 and 3.

  If the conductive member 71 is cut at any one of the attachment portions 76, the free end side of the attachment portion 76 does not function as a signal line. Therefore, in order to prevent the curved members 73 and 74 from being opened after attachment. A firm locking structure other than the locking protrusions 77 and the locking recesses 78 described above may be used, or the entire mounting member 72 may be covered with a spiral electric wire binding tool.

[Second Embodiment]
FIG. 4 is an exploded perspective view showing a method of winding the conductive member 81 around the power lines 2 and 3 in the high-frequency signal injection device according to the second embodiment of the present invention. It should be noted that in the present embodiment, the conductive member 81 is formed on a mounting member 82 that is attached to the power lines 2 and 3. The mounting member 82 is similar to the mounting member 72 described above. The mounting member 82 is made of an electrically insulating material, and a pair of curved members 83 and 84 curved in a substantially semicircular arc shape are arranged so that the concave portions thereof are opposed to each other and shifted in the axial direction of the hinge 85, A plurality of attachment portions 86 formed so that the power lines 2 and 3 can be held by the concave portions are connected by a hinge 85 portion.

  Accordingly, the pair of bending members 83 and 84 are arranged so as to be shifted in the axial direction of the hinge 85 so that they can intersect at an arbitrary angle, and have an arbitrary diameter within the inner diameter of the bending members 83 and 84. The power line can be carried. Then, after holding the power line, the other end sides of the bending members 83 and 84 are fixed so as not to be opened by the fastening band 87 or the like, as shown in FIG.

  Therefore, as the conductive member 81, as shown in the exploded perspective view of the bending members 83 and 84 in FIG. 6 and the current path diagram in FIG. 7, the inner periphery or the outer periphery of the bending members 83 and 84 (in FIG. On the circumferential surface, a connection pattern 81a is formed from one end side to the other end side in the vicinity of the hinge 85, and a connection pattern 81b with a mounting portion 86 adjacent to the end face of the hinge 85 portion is formed on one end side. In addition, a connection pattern 81c is formed on the end face on the other end side so as to be in electrical contact with the end faces of the corresponding bending members 84 and 83, and this connection pattern 81c forms a loop.

  By comprising in this way, the electroconductive member 81 can be wound around the power line of arbitrary diameters corresponding to it. In addition, it is desirable that the connection pattern 81b and the connection pattern 81c that are in sliding contact with each other between the adjacent bending members 83 and 84 are subjected to conductive brushing, so that electrical connection is more reliably performed.

[Third Embodiment]
FIG. 8 is an exploded perspective view showing the structure of the mounting member 92 in the high-frequency signal injection device according to the third embodiment of the present invention. The mounting member 92 is similar to the above-described mounting member 82, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. In the mounting member 82 shown in FIGS. 4 to 7 described above, a plurality of the bending members 83 and 84 are connected by the connecting members 83a and 84a, and a plurality of mounting portions 86 are connected. In the form, the attachment portions 96 made of the curved members 93 and 94 are connected in a desired number at the hinge 85 portion.

  In the conductive member 81, as shown in FIG. 9, the connection pattern 81 b is provided on one end (hinge 85) side of the bending members 93 and 94 rather than the tangent line 97 of the bending members 93 and 94 passing through the hole 95 corresponding to the hinge 85. The connection pattern 81c is provided on the other end (open end) side of the bending members 93 and 94, so that the connection pattern 81c is located on one end (hinge 85) side of the adjacent mounting portions 96. It is formed so as not to short-circuit.

  With this configuration, each mounting portion 96 can be attached and detached at the hinge 85 portion. Therefore, the mounting portion 96 formed by forming the conductive member 81 on the pair of bending members 93 and 94 is used as one unit. As a result, it is possible to realize a mounting member capable of adjusting the length (number of turns) by connecting the units.

It is a figure showing a schematic structure of a high frequency signal injection device concerning a 1st embodiment of the present invention. It is a disassembled perspective view which shows the winding method of the signal wire around the power line in the high frequency signal injection device according to the first embodiment of the present invention. It is a figure which shows typically the winding method of FIG. It is a disassembled perspective view which shows the winding method of the signal line to the power line in the high frequency signal injection apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows the winding method of FIG. It is a disassembled perspective view of the bending member which implement | achieves the winding method of FIG. FIG. 7 is a current path diagram of FIG. 6. It is a disassembled perspective view which shows the structure of the mounting member in the high frequency signal injection apparatus which concerns on 3rd Embodiment of this invention. It is a figure for demonstrating the formation method of the signal wire | line in the attachment member shown in FIG.

Explanation of symbols

1 High frequency signal injection device 2, 3 Power line (main line)
4,5 Lead-in wire 10 PLC signal generator 11, 12 Signal wire 71, 81 Conductive member 71a Spiral pattern 71b Connection pattern 71c Connection pattern 72, 82, 92 Mounting member 73, 74, 83, 84, 93, 94 Curved Member 75, 85 Hinge 76, 86, 96 Mounting part 77 Locking protrusion 78 Locking recess 81a Connection pattern 81b Connection pattern 81c Connection pattern 87 Fastening band

Claims (3)

In an apparatus for injecting a high frequency signal into a power line used for power line carrier communication,
A signal line for injecting the high-frequency signal; and a mounting member formed by connecting a plurality of mounting portions on which the signal line is formed;
Each of the mounting portions is made of an electrically insulating material, and a pair of curved members curved in a substantially semicircular arc are arranged so that the concave portions face each other, one end in the circumferential direction is connected by a hinge, and the other end side is by be freely opened and closed, together with formed by formed so as to be able to saddled power line in said recess, connected to each other by the hinge portion,
The signal line is
On the inner or outer peripheral surface of the bending member, a spiral pattern formed from one end side to the other end side;
A connection pattern formed on an end surface of the hinge portion on one end side of the bending member, connected to the spiral pattern;
Continuing to the spiral pattern, the other end side of the bending member is configured to include a connection pattern that contacts the open end side of the corresponding bending member,
Kakaekomi power line in recesses of the pair of curved members, by closing the other end, the signal lines are rendered conductive signal lines and electrically curved member which forms at the other end a pair of the closed Ji curved element forming a loop Te, a high-frequency signal injection device the hinge part by conduction of a signal line electrically trims portion adjacent, characterized in that it is connected to the next loop. In an apparatus for injecting a high frequency signal into a power line used for power line carrier communication,
A signal line for injecting the high-frequency signal; and a mounting member formed by connecting a plurality of mounting portions on which the signal line is formed;
Each of the mounting portions is made of an electrically insulating material, and a pair of curved members curved in a substantially semicircular arc are arranged so that the concave portions face each other, one end in the circumferential direction is connected by a hinge, and the other end side is By being openable and closable, it is formed so that the power line can be held in the recess, and is connected to each other at the hinge portion, and the pair of bending members are arranged offset in the axial direction of the hinge. Can be crossed at any angle,
The signal line is
A connection pattern formed from one end side to the other end side in the axial direction of the hinge in the vicinity of the hinge on the inner or outer peripheral surface of the bending member ;
Connected to the connection pattern, formed on one end side in the axial direction of the hinge in the bending member, and a connection pattern with an adjacent mounting member,
Continuing to the connection pattern, the other end side in the axial direction of the hinge of the bending member , and a connection pattern formed on the opposing end surfaces of the pair of the curved portions ,
By holding the power line in the concave portion of the pair of bending members and closing the other end side, the signal line is electrically connected to the signal line of the bending member forming a pair between the end surfaces of the closed bending member and loops. forming a hinge part and a signal line trims portions of adjacent electrically conductive to high-frequency signal injection device you characterized by being connected to the next loop.   3. The high frequency signal injection device according to claim 1, wherein the attachment portion is detachable at the hinge portion.

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