JP2012010483A - Wiring duct, and wiring duct system equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring duct and a wiring duct system capable of miniaturizing and preventing an electromagnetic interference in a plurality of electrode pairs.SOLUTION: A wiring duct 1 includes a core 10 made of a metallic material and a plurality of electrode pairs 30 and 40 provided in the core 10. The electrode pair 40 comprises two conductors 41 and 42. The plurality of electrode pairs 30 and 40 are provided with a space in a lateral direction as a prescribed direction. Two conductors 41 and 42 composing the electrode pair 40 are provided with a space in a vertical direction perpendicular to the lateral direction. A shielding wall made of a metallic material is provided between a plurality of electrode pairs 30 and 40 and extends in the vertical direction to shield electromagnetic waves.

Description

  The present invention relates to a wiring duct laid on a wall or a ceiling, and a wiring duct system including the same.

  Generally, it is known that a wiring duct system is provided by laying a wiring duct on a ceiling in a factory, a store, an office, or the like. The wiring duct includes, for example, an electrode pair composed of two conductors for supplying power, and an electric device such as a lighting device or a power device is connected to the electrode pair so that electric power is supplied to the electric device. The

  Further, a wiring duct having a plurality of electrode pairs is known (for example, see Patent Document 1). Patent Document 1 discloses a wiring duct provided with two electrode pairs constituted by two conductors for supplying power and one electrode pair constituted by two conductors (signal conductors) for signal transmission. Has been.

US Pat. No. 6,274,817

  When one electrode pair is configured as a signal transmission conductor as described above, it is necessary to suppress the occurrence of electrical interference between the conductors. Patent Document 1 describes that a partition wall made of a conductive material is provided between a plurality of electrode pairs. However, since a space for connecting an electrical device to the electrode pair is required inside the wiring duct, the partition wall cannot be enlarged, and electromagnetic interference may occur in the plurality of electrode pairs.

  In order to suppress electromagnetic interference, it is conceivable to sufficiently leave a plurality of electrode pairs. For example, it is conceivable to suppress electromagnetic interference by providing an electrode pair composed of two conductors provided with a gap in the left-right direction with a gap in the left-right direction. However, when a plurality of electrode pairs are provided in this way, there is a problem that the wiring duct is enlarged.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a wiring duct and a wiring duct system that can be reduced in size and can suppress electromagnetic interference in a plurality of electrode pairs. There is to do.

  In order to solve the above problems, a wiring duct according to a first invention includes a core made of a metal material and a plurality of electrode pairs provided inside the core, and each of the electrode pairs is constituted by two conductors. A plurality of the electrode pairs provided at intervals in a predetermined direction, and the two conductors constituting one electrode pair are spaced from each other in a direction perpendicular to the predetermined direction. A barrier wall made of a metal material and extending in a direction perpendicular to the predetermined direction is provided between the plurality of electrode pairs.

In the wiring duct, it is preferable that the blocking wall is formed integrally with the core.
In the wiring duct, the blocking wall may be joined to the core, and the blocking wall may be integrally formed with the core.

  In the wiring duct, the core is divided by the blocking wall and has a plurality of internal spaces in which the electrode pairs are provided, and the core is provided with a plurality of openings that open the internal space. Preferably, the plurality of openings are opened in different directions.

  In the wiring duct, it is preferable that the plurality of openings are opened in different directions by forming the core so that the cross-sectional shape is line-symmetric in the predetermined direction.

In the wiring duct, the core is preferably made of a nonmagnetic metal material.
In the wiring duct, it is preferable that the core and the blocking wall are made of a nonmagnetic metal material.

In the wiring duct, it is preferable that the capacitances of the two conductors constituting one electrode pair are equal to each other.
In order to solve the above problems, a wiring duct according to a second invention comprises a core made of a metal material and a plurality of electrode pairs provided inside the core, and each of the electrode pairs is constituted by two conductors. A plurality of the electrode pairs provided at intervals in a predetermined direction, and the two conductors constituting one electrode pair are spaced from each other in a direction perpendicular to the predetermined direction. The capacitances of the two conductors provided and constituting one electrode pair are equal to each other.

  In the wiring duct, the core is provided with an opening that opens an internal space in which the electrode pair is provided, and the core bisects the opening in a cross section perpendicular to the longitudinal direction of the core. The two conductors forming one electrode pair are symmetrical with respect to the center line in the cross section perpendicular to the longitudinal direction of the core. It is preferable to be disposed at a position.

  The wiring duct system of the present invention is a wiring duct system comprising a plurality of the above wiring ducts, wherein a signal transmission path is formed by connecting the electrode pairs included in each of the wiring ducts to each other, wherein the signal transmission path Has a structure for reversing the direction of magnetic flux generated when a current flows through the electrode pair forming the signal transmission path.

  The wiring duct system preferably includes a wiring duct connecting member that connects the plurality of wiring ducts to each other, and the direction of the magnetic flux is reversed by the wiring duct connecting member.

  According to the present invention, it is possible to reduce the size of the wiring duct and to suppress electromagnetic interference in a plurality of electrode pairs.

The perspective view which shows the wiring duct which concerns on the 1st Embodiment of this invention. Sectional drawing which shows the cross section perpendicular | vertical to the longitudinal direction of the wiring duct which concerns on the embodiment. The perspective view which shows the wiring duct which concerns on the 2nd Embodiment of this invention. Sectional drawing which shows the cross section perpendicular | vertical to the longitudinal direction of the wiring duct which concerns on the embodiment. Sectional drawing which shows the cross section perpendicular | vertical to a longitudinal direction of the wiring duct which concerns on the 3rd Embodiment of this invention. The perspective view which shows the wiring duct system which concerns on this invention, and the connection member for wiring ducts which connects a some wiring duct. It is a block diagram of the wiring duct system which concerns on this invention, Comprising: The figure which shows the direction of the magnetic flux which generate | occur | produces when an electric current flows into an electrode pair. Sectional drawing which shows the modification of the wiring duct which concerns on this invention. Sectional drawing which shows the modification of the wiring duct which concerns on this invention. Sectional drawing which shows the modification of the wiring duct which concerns on this invention. Sectional drawing which shows the modification of the wiring duct which concerns on this invention. Sectional drawing which shows the modification of the wiring duct which concerns on this invention. Sectional drawing which shows the modification of the wiring duct which concerns on this invention. Sectional drawing which shows the modification of the wiring duct which concerns on this invention.

(First embodiment)
Hereinafter, a first embodiment, which is an embodiment of the present invention, will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, a wiring duct 1 laid on an installation surface (not shown) such as a ceiling or a wall in a factory or a store extends in a predetermined linear direction (hereinafter referred to as “longitudinal direction L”). It is a molded body. Specifically, the wiring duct 1 is a linear molded body whose dimension in the longitudinal direction L is, for example, 1 to 3 m.

  As shown in FIGS. 1 and 2, the wiring duct 1 includes a core 10 made of a metal material, an insulator 20 made of an insulating material provided on the core 10, and a plurality of electrode pairs 30 supported by the insulator 20. , 40. The core 10, the insulator 20, and the electrode pairs 30 and 40 extend along the longitudinal direction L. That is, the longitudinal direction of the core 10 and the longitudinal direction of the electrode pairs 30 and 40 are the longitudinal direction L of the wiring duct 1.

  The wiring duct 1 has an internal space in which the electrode pairs 30 and 40 are accommodated, and has an opening 1a continuous to the internal space. The opening 1 a that opens in a predetermined direction is provided so as to extend in the longitudinal direction L. Therefore, by connecting a wiring duct plug (not shown) to the electrode pair 30 and 40 through such an opening 1a, an electrical device or a communication device connected to the electrode pair 30 or 40 via the wiring duct plug. Can be provided indoors along the wiring duct 1.

  As shown in FIG. 2, the core 10 that is the core material of the wiring duct 1 has a base portion 11 that is provided facing the installation surface on which the wiring duct 1 is installed. The flat base 11 extending in the left-right direction in the cross section perpendicular to the longitudinal direction L extends along the longitudinal direction L. The base 11 is provided with a through hole (not shown), and the base 11 is fixed to the ceiling by tightening the base 11 against the ceiling as the installation surface using a screw inserted through the through hole. The wiring duct 1 is laid on the ceiling which is the installation surface.

  Hereinafter, in the description of the wiring duct 1, “above” refers to a direction toward the ceiling when the base portion 11 faces the ceiling. The up and down direction including the upper side and the lower side is a direction orthogonal to the longitudinal direction L that is the direction in which the wiring duct 1 extends. Moreover, the direction orthogonal to the longitudinal direction L and the up-down direction is a left-right direction, and the left side and the right side are directions indicated by arrows in the figure.

  The core 10 having a substantially rectangular outer shape in a cross section perpendicular to the longitudinal direction L is formed so that the right side wall portion 12 provided on the right side, the left side wall portion 13 provided on the left side, and the base portion 11 provided on the upper side face the lower side. And an opposing wall portion 14 provided on the surface.

  The right side wall portion 12 connected to the right end portion of the base portion 11 extends along the longitudinal direction L while extending downward from the base portion 11 which is the upper opposite direction. The left wall 13 connected to the right end of the base 11 extends downward from the base 11 and extends in the longitudinal direction L. Accordingly, the right side wall portion 12 and the left side wall portion 13 face each other in the left-right direction orthogonal to the longitudinal direction L, and are provided in parallel along the longitudinal direction L.

  The opposing wall portion 14 connected to the lower end portion of the right wall portion 12 and the lower end portion of the left wall portion 13 extends along the longitudinal direction L. The opposing wall portion 14 connected to the lower end portion of the right wall portion 12 extends from the right wall portion 12 toward the left. The opposing wall portion 14 connected to the lower end portion of the left side wall portion 13 extends from the left side wall portion 13 toward the right side. Therefore, when the base 11 is provided on the ceiling, the base 11 and the opposing wall 14 are opposed to each other in the vertical direction orthogonal to the longitudinal direction L and are provided in parallel along the longitudinal direction L.

  The core 10 configured as described above has an internal space in which the electrode pairs 30 and 40 are provided. The core 10 is provided with an opening 1a that opens the internal space. The opening 1 a of the core 10 of the wiring duct 1 is provided in the facing wall 14. Therefore, when the base 11 is provided on the ceiling, the opening 1a opens downward, and the internal space of the core 10 is opened downward.

  The core 10 in which the base 11, the right side wall 12, the left side wall 13, and the opposing wall 14 are integrally formed is made of aluminum which is a nonmagnetic metal material. The core 10 shown in FIG. 1 can be formed by casting, for example.

  A blocking wall 60 that extends downward from the base 11 is connected to a central portion of the base 11 in the left-right direction. The blocking wall 60 extending in the up-down direction perpendicular to the left-right direction is made of a metal material and is provided between the plurality of electrode pairs 30, 40 provided at intervals in the left-right direction. The blocking wall 60 formed integrally with the base portion 11 of the core 10 is made of aluminum which is the same material as the core 10.

  The insulator 20 provided on the core 10 is provided so as to cover the surface of the core 10 so that the electrode pairs 30 and 40 and the core 10 are not connected. The insulator 20 supports the electrode pairs 30 and 40 inside the core 10. Therefore, the core 10 is insulated from the electrode pairs 30 and 40 and functions as an electromagnetic shield. The insulator 20 may not be provided on the entire surface of the core 10.

  As described above, the plurality of electrode pairs 30 and 40 provided in the core 10 are provided at intervals in the left-right direction which is a direction perpendicular to the longitudinal direction L. The electrode pair 30 is provided so as to be located on the right side of the electrode pair 40, and the electrode pair 40 is provided so as to be located on the left side of the electrode pair 30.

  One electrode pair 30 is composed of two conductors 31 and 32 supported by an insulator 20 provided on the right side wall portion 12 of the core 10. The conductors 31 and 32 extending in the longitudinal direction L are provided with an interval in the vertical direction perpendicular to the longitudinal direction L and the horizontal direction. That is, the conductor 31 is provided so as to be located above the conductor 32, and the conductor 32 is provided so as to be located below the conductor 31.

  One electrode pair 40 includes two conductors 41 and 42 supported by the insulator 20 provided on the left side wall 13 of the core 10. The conductors 41 and 42 are also provided at intervals in the vertical direction, which is a direction perpendicular to the right and left direction. That is, the conductor 41 is provided so as to be positioned above the conductor 42, and the conductor 42 is provided so as to be positioned below the conductor 41.

  As described above, each of the electrode pairs 30 and 40 is configured by two conductors, and the conductors 31, 32, 41, and 42 included in the electrode pairs 30 and 40 are exposed in the wiring duct 1. Specifically, the conductors 31 and 32 are provided so that the left surface thereof is exposed, and the conductors 41 and 42 are provided so that the right surface thereof is exposed.

  In the wiring duct 1, the capacitance of the conductor 41 constituting the electrode pair 40 and the capacitance of the conductor 42 constituting the electrode pair 40 are configured to be the same. That is, the capacitances of the conductors 41 and 42 constituting one electrode pair 40 are equal to each other.

  The capacitance of the conductor 41 is the distance from the conductor 41 to the core 10 and the conductor 42 which are the conductors facing the conductor 41, the area of the portion where the conductor 41, the core 10 and the conductor 42 face each other, and the conductor 41, the core 10 and the conductor 42. 42 depends on the dielectric constant of the insulator 20 provided between them. Similarly, the capacitance of the conductor 42 is the distance from the conductor 42 to the core 10 and the conductor 41 which are the conductors facing the conductor 42, the area of the portion where the conductor 42 and the core 10 and the conductor 41 face each other, and the conductor 42 and the core 41. 10 and the dielectric constant of the insulator 20 provided between the conductor 41 and the conductor 41. Therefore, the capacitances of the conductors 41 and 42 are equal to each other by adjusting the shape and arrangement of the core 10, the insulator 20, and the conductors 41 and 42.

  The capacitance of the conductor 41 can be calculated based on the structure within a predetermined range A1 from the center of the conductor 41 in a cross section perpendicular to the longitudinal direction L as shown in FIG. Further, the capacitance of the conductor 42 to be compared with the capacitance of the conductor 41 can also be calculated based on the structure within the predetermined range A2 from the center of the conductor 42 in the cross section perpendicular to the longitudinal direction L. it can.

  As described above, even in the wiring duct 1 that does not have a structure such as a twisted pair cable, the balance of the conductors 41 and 42 can be increased. The core 10 is formed so that the cross-sectional shape is line-symmetric in the left-right direction, and the electrode pair 30 is provided at a position that is line-symmetric with the electrode pair 40 about the center line of the core 10 in the left-right direction. The capacitances of the conductors 31 and 32 constituting the electrode pair 30 are also equal to each other.

According to this embodiment, when the electrode pair 40 is used as a signal transmission path to be connected in a balanced manner and the electrode pair 30 is used as a power transmission path, the following effects can be achieved.
(1) A plurality of electrode pairs 30 and 40 are provided at intervals in the left-right direction which is a predetermined direction, and the two conductors 31 and 32 constituting the electrode pair 30 are arranged in a vertical direction which is a direction perpendicular to the left-right direction. Provided at intervals. For this reason, compared with the case where the conductors 31 and 32 are provided at intervals in the left-right direction, the wiring duct 1 can be reduced in size. In addition, since the two conductors 41 and 42 constituting the electrode pair 40 are also provided with a space in the vertical direction, the conductors 41 and 42 of the wiring duct 1 are compared with the case where the conductors 41 and 42 are provided with a space in the left and right direction. Miniaturization can be achieved. A blocking wall 60 made of a metal material is provided between the plurality of electrode pairs 30 and 40 in the vertical direction. For this reason, the shielding wall 60 can reduce electromagnetic coupling between the plurality of electrode pairs 30 and 40 and suppress electromagnetic interference in the plurality of electrode pairs 30 and 40.

  (2) The blocking wall 60 is formed integrally with the core 10. Therefore, the electromagnetic interference in the plurality of electrode pairs 30 and 40 is suppressed as compared with the case where the core 10 and the blocking wall 60 are separated without providing a gap between the core 10 and the blocking wall 60. can do.

  (3) The core 10 is made of aluminum which is a nonmagnetic (nonferromagnetic) metal material. For this reason, compared with the case where the core 10 consists of iron which is a ferromagnetic material, the electromagnetic wave to the exterior of the wiring duct 1 can be interrupted | blocked, for example.

  (4) The core 10 and the blocking wall 60 are made of aluminum which is a non-magnetic metal material. For this reason, compared with the case where the core 10 and the interruption | blocking wall 60 consist of iron which is a ferromagnetic material, the electromagnetic interference in the several electrode pairs 30 and 40 can be suppressed, for example.

  (5) Since the electrostatic capacitances of the two conductors 41 and 42 constituting one electrode pair 40 are equal to each other, the balance between the two conductors 41 and 42 is increased, and electromagnetic interference in the plurality of electrode pairs 30 and 40 is reduced. Can be suppressed.

  Further, the capacitances of the two conductors 31 and 32 constituting the other electrode pair 30 are equal to each other. For this reason, even when a signal transmission path that is balancedly connected by the two conductors 31 and 32 is formed, electromagnetic interference in the plurality of electrode pairs 30 and 40 can be suppressed.

(Second Embodiment)
Next, a second embodiment, which is an embodiment of the present invention, will be described with reference to FIGS. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted or simplified and demonstrated.

  As shown in FIG. 3, the wiring duct 1 according to the present embodiment has two openings 1b and 1c that are continuous with the internal space. Openings 1b and 1c that open in a predetermined direction are provided extending in the longitudinal direction L.

  As shown in FIG. 4, the core 10 according to the present embodiment has an internal space S1 in which the electrode pair 30 is provided and an internal space S2 in which the electrode pair 40 is provided. Thus, the plurality of internal spaces S1 and S2 in which the electrode pairs 30 and 40 are provided are partitioned by the blocking wall 60.

  The blocking wall 60 according to this embodiment is connected to the central portion of the opposing wall portion 14 that extends longer in the left-right direction than the first embodiment, and the blocking wall 60 causes the base 11 and the opposing wall portion 14 to Is connected. Therefore, in the cross section perpendicular to the longitudinal direction L, the internal space S1 and the internal space S2 are not continuous.

  The core 10 configured as described above has a plurality of internal spaces S1 and S2 in which electrode pairs 30 and 40 are provided. The core 10 is provided with a plurality of openings 1b and 1c that open the internal spaces S1 and S2.

  By forming the core 10 such that the cross-sectional shape perpendicular to the longitudinal direction L is line symmetric in the left-right direction, which is the predetermined direction, the plurality of openings 1b, 1c open in different directions in the left-right direction. ing. That is, the opening 1b that opens the internal space S1 is provided in the right side wall 12, and the opening 1c that opens the internal space S2 is provided in the left side wall 13.

  Therefore, when the base 11 is provided on the ceiling, the opening 1b opens to the right, and the internal space S1 of the core 10 is open to the right. Furthermore, the opening 1c is opened leftward, and the internal space S2 of the core 10 is opened leftward.

  Further, the core 10 according to the present embodiment is formed so as to be symmetric with respect to a center line C that bisects the opening 1b in a cross section perpendicular to the longitudinal direction L. In addition, since the core 10 is formed so as to be line-symmetric in the left-right direction, the core 10 is line-symmetric about the center line C that bisects the opening 1c in a cross section perpendicular to the longitudinal direction L. It is also formed.

  That is, the right side wall portion 12 according to the present embodiment is connected to the right end portion of the opposing wall portion 14 as well as the right end portion of the base portion 11. The right side wall portion 12 connected to the right end portion of the opposing wall portion 14 extends upward from the opposing wall portion 14 and extends in the longitudinal direction L.

  Similarly to the right side wall part 12, the left side wall part 13 is provided not only on the left side edge part of the base part 11 but also on the left side edge part of the opposing wall part 14. The right side wall 12 connected to the left end of the opposing wall 14 extends upward from the opposing wall 14 and extends in the longitudinal direction L.

  The right side wall portion 12 and the left side wall portion 13 according to the present embodiment have lengths extending in the vertical direction as compared with the first embodiment because openings 1b and 1c having desired sizes are formed. Is formed to be short.

  In the present embodiment, the conductors 31 and 32 are supported by the insulator 20 provided on the blocking wall 60, and the conductors 41 and 42 are also supported by the insulator 20 provided on the blocking wall 60. Therefore, in this embodiment, the conductors 31 and 32 are provided so that the right surface thereof is exposed, and the conductors 41 and 42 are provided so that the left surface thereof is exposed.

  In the cross section perpendicular to the longitudinal direction L, the two conductors 31 and 32 are disposed at positions that are line-symmetric with respect to the center line C that bisects the opening 1b. Further, the two conductors 41 and 42 are arranged at positions that are line-symmetric with respect to a center line C that bisects the opening 1 c in a cross section perpendicular to the longitudinal direction L.

  Also in the wiring duct 1 according to the present embodiment configured as described above, the capacitances of the conductors 31 and 32 constituting the electrode pair 30 are equal to each other, and the capacitances of the conductors 41 and 42 constituting the electrode pair 40 are the same. Are also equal to each other.

According to this embodiment, in addition to the effects (1) to (5), the following effects can be achieved.
(6) The core 10 is divided by the blocking wall 60 and has a plurality of internal spaces S1, S2 in which the electrode pairs 30, 40 are provided. The core 10 is provided with a plurality of openings 1b and 1c that open the internal spaces S1 and S2, and the openings 1b and 1c open in different directions. For this reason, the electromagnetic coupling of the plurality of electrode pairs 30 and 40 can be further reduced, and the electromagnetic interference in the plurality of electrode pairs 30 and 40 can be further suppressed.

  (7) By forming the core 10 so that the cross-sectional shape is line-symmetric in the left-right direction, which is a predetermined direction, the plurality of openings 1b, 1c are opened in different directions. With such a configuration, it is possible to open the opening 1b toward one right side in the left-right direction and open the opening 1c toward the left side, which is the other in the left-right direction.

  (8) The core 10 is provided with an opening 1c that opens the internal space S2 in which the electrode pair 40 is provided, and the core 10 bisects the opening 1c in a cross section perpendicular to the longitudinal direction L. It is formed so as to be line symmetric with respect to the line C. The two conductors 41 and 42 constituting one electrode pair 40 are disposed at positions that are line-symmetric with respect to the center line C in the cross section perpendicular to the longitudinal direction of the core 10. With such a configuration, the capacitances of the two conductors 41 and 42 constituting one electrode pair 40 can be made equal to each other with a simple shape.

  The core 10 is provided with an opening 1b that opens the internal space S1 in which the electrode pair 30 is provided, and the core 10 bisects the opening 1b in a cross section perpendicular to the longitudinal direction L. It is formed so as to be line symmetrical about C. The two conductors 31 and 32 constituting the other electrode pair 30 are also arranged at positions that are line-symmetric with respect to the center line C in the cross section perpendicular to the longitudinal direction of the core 10. Accordingly, the capacitances of the two conductors 31 and 32 constituting the other electrode pair 30 can be made equal to each other with a simple shape.

(Third embodiment)
Next, a third embodiment, which is an embodiment of the present invention, will be described with reference to FIG. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted or simplified and demonstrated.

  As shown in FIG. 5, the wiring duct 1 according to this embodiment has a configuration in which the blocking wall 60 according to the first embodiment is not provided. Therefore, although the effect of the above (1) cannot be obtained, since the capacitance of the conductor 41 and the capacitance of the conductor 42 constituting the electrode pair 40 are configured to be the same, the above ( The effect 5) can be obtained.

According to this embodiment, when the electrode pair 40 is used as a signal transmission path to be connected in a balanced manner and the electrode pair 30 is used as a power transmission path, the following effects can be achieved.
(9) A plurality of electrode pairs 30 and 40 are provided at intervals in the left-right direction which is a predetermined direction, and the two conductors 31 and 32 constituting the electrode pair 30 are arranged in a vertical direction which is a direction perpendicular to the left-right direction. Provided at intervals. For this reason, compared with the case where the conductors 31 and 32 are provided at intervals in the left-right direction, the wiring duct 1 can be reduced in size. In addition, since the two conductors 41 and 42 constituting the electrode pair 40 are also provided with a space in the vertical direction, the conductors 41 and 42 of the wiring duct 1 are compared with the case where the conductors 41 and 42 are provided with a space in the left and right direction. Miniaturization can be achieved. The capacitances of the two conductors 41 and 42 constituting one electrode pair 40 are equal to each other. For this reason, the balance of the two conductors 41 and 42 can be increased, and electromagnetic interference in the plurality of electrode pairs 30 and 40 can be suppressed.

  Further, the capacitances of the two conductors 31 and 32 constituting the other electrode pair 30 are equal to each other. For this reason, even when a signal transmission path that is balancedly connected by the two conductors 31 and 32 is formed, electromagnetic interference in the plurality of electrode pairs 30 and 40 can be suppressed.

(Fourth embodiment)
Next, a fourth embodiment, which is an embodiment of the present invention, will be described with reference to FIGS. Note that the configuration of the wiring duct 1 according to the present embodiment is the same as that of the first embodiment, and a description thereof will be omitted.

  As shown in FIG. 6, the invention according to the present embodiment includes a plurality of wiring ducts 1 according to the first embodiment, and a signal transmission line is formed by connecting electrode pairs 40 included in each of the wiring ducts 1 to each other. 4 is a wiring duct system in which 4 is formed.

  The wiring duct system includes a duct connecting member 7 which is a wiring duct connecting member for connecting a plurality of wiring ducts 1 to each other. By inserting the duct connecting member 7 into the wiring duct 1 from the longitudinal direction L, the wiring duct 1 and another wiring duct 1 are connected.

  By connecting the wiring duct 1 and another wiring duct 1, the electrode pairs 30 included in each of the wiring ducts 1 are connected to each other, and the electrode pairs 30 included in each of the wiring ducts 1 are connected to each other. The electrode pair 40 is connected to each other. The power transmission path 3 is formed by the electrode pair 30 connected to each other via the duct connection member 7, and the signal transmission path 4 to be balanced connected by the electrode pair 40 connected to each other via the duct connection member 7. Has been.

  In the present embodiment, the signal transmission path 4 has a structure that reverses the direction of the magnetic flux generated when a current flows through the electrode pair 40 that forms the signal transmission path 4. FIG. 7 is a schematic diagram showing a structure in which the direction of magnetic flux is reversed in the wiring duct system in FIG. 6.

  As shown in FIG. 7, the two conductors 41 and 42 constituting the signal transmission path 4 are connected so as to intersect each other. Specifically, the conductor 41 of the electrode pair 40 included in one wiring duct 1 is connected to the conductor 42 of the electrode pair 40 included in the other wiring duct 1 by the duct connecting member 7 that connects the two wiring ducts 1. ing. The conductor 42 of the electrode pair 40 included in one wiring duct 1 is connected to the conductor 41 of the electrode pair 40 included in the other wiring duct 1.

  By connecting the conductors 41 and 42 of the electrode pair 40 as described above, the duct connecting member 7 is configured to reverse the direction of the magnetic flux generated when a current flows through the electrode pair 40.

  In the power transmission path 3 that transmits AC power, the two conductors 31 and 32 are not connected so as to cross each other. In other words, the conductors 31 of the electrode pairs 30 included in the two wiring ducts 1 are connected to each other by the duct connecting member 7, and the conductors 32 of the electrode pairs 30 are connected to each other.

According to this embodiment, the following effects can be achieved.
(10) The signal transmission path 4 formed by connecting the electrode pairs 40 included in each of the wiring ducts 1 to each other has a structure that reverses the direction of the magnetic flux generated by the current flowing through the electrode pairs 40. ing. For this reason, the magnetic flux generated by the current flowing through the electrode pair 40 can be canceled to reduce the electromagnetic coupling, and the electromagnetic interference in the plurality of electrode pairs 30 and 40 can be further suppressed.

  (11) The direction of the magnetic flux generated by the current flowing through the electrode pair 40 is reversed by the duct connection member 7 which is a wiring duct connection member. For this reason, even if the wiring duct 1 does not have a structure that reverses the direction of the magnetic flux generated by the current flowing through the electrode pair 40, a wiring duct system that exhibits the effect (10) can be configured. .

  In addition, this invention is not limited to the said embodiment, A various design change is possible based on the meaning of this invention, and they are not excluded from the scope of the present invention. For example, the above embodiment may be modified as follows, or the following modifications may be combined.

(Other embodiments)
The core 10 and the blocking wall 60 may be formed of a nonmagnetic metal material other than aluminum. As described above, the core 10 and the blocking wall 60 are preferably formed of a nonmagnetic metal material, but may be formed of a metal material other than the nonmagnetic material.

  For example, as shown in FIG. 8 according to the modified example of the first embodiment, the blocking wall 60 may be joined to the core 10 and the blocking wall 60 may be integrally formed with the core 10. According to such a configuration, the blocking wall 60 can be formed using a material different from that of the core 10.

As shown in FIG. 9 according to the modified example of the first embodiment, the blocking wall 60 formed integrally with the core 10 may be formed by bending the core 10 and processing it.
-As shown in FIG. 10 which concerns on the modification which comprised the cutoff wall 60 with the member different from the core 10, the cutoff wall 60 can also be provided, without joining to the core 10. As shown in FIG.

  -You may change suitably the shape and arrangement | positioning of the two conductors 41 and 42 which comprise the electrode pair 40. FIG. Moreover, you may change suitably the shape and arrangement | positioning of the two conductors 31 and 32 which comprise the other electrode pair 30. FIG.

  For example, as shown in FIG. 11, the conductors 31, 32, 41, 42 may be supported by the insulator 20 provided on the blocking wall 60 in the internal space of the core 10 according to the first embodiment.

  For example, as shown in FIG. 12, the insulator 20 in which the conductors 31, 32, 41, and 42 are provided at portions other than the blocking wall 60 in the internal spaces S <b> 1 and S <b> 2 of the core 10 according to the second embodiment. It may be supported by.

  For example, as shown in FIG. 13 according to the modification of the first embodiment, conductors 33 and 43 other than the conductors 31, 32, 41, and 42 may be provided inside the core 10. The conductors 33 and 43 that do not constitute the electrode pairs 30 and 40 are preferably configured as ground electrodes.

  The wiring duct may include three or more electrode pairs. In a wiring duct having three or more electrode pairs, a plurality of blocking walls are preferably provided. The shape and arrangement of the blocking wall may be changed as appropriate.

  In all electrode pairs provided in the wiring duct, it is preferable that the capacitances of the two conductors constituting the electrode pair are equal to each other. However, in all electrode pairs provided in the wiring duct, the two conductors constituting the electrode pair are The capacitances of the conductors may not be equal to each other. That is, in addition to the electrode pair configured by two conductors having the same capacitance, the wiring duct may include an electrode pair configured by two conductors having different capacitances.

  For example, as shown in FIG. 14 according to the modification of the first embodiment, two conductors 31 and 32 constituting the electrode pair 30 may be provided with a gap in the left-right direction. That is, in all electrode pairs provided in the wiring duct, the two conductors constituting the electrode pairs may not be provided with a gap in the direction perpendicular to the left-right direction, which is a predetermined direction. However, in all electrode pairs, it is most preferable that the two conductors constituting the electrode are provided with a gap in the direction perpendicular to the left-right direction.

  -When two conductors constituting one electrode pair are provided at intervals in a direction perpendicular to the left-right direction which is a predetermined direction, the two conductors are in a straight line in the vertical direction which is the perpendicular direction. It does not have to be located. That is, in one electrode pair, two conductors provided at intervals in a direction perpendicular to the predetermined direction may be provided at intervals in the predetermined direction.

  In the fourth embodiment, wiring ducts other than the wiring duct 1 according to the first embodiment may be connected to each other. For example, the wiring duct 1 according to the second or third embodiment may be connected to each other, or the wiring ducts having different structures may be connected to each other.

  In the fourth embodiment, the wiring duct connecting member having a structure that reverses the direction of the magnetic flux may not be the duct connecting member 7 that connects the two wiring ducts 1. For example, a wiring duct connecting member that connects one wiring duct 1 and two wiring ducts 1 may have a structure that reverses the direction of magnetic flux.

  -In the said 4th Embodiment, the connection member for wiring ducts does not need to have the structure which reverses the direction of magnetic flux. That is, the wiring duct may have a structure for reversing the direction of magnetic flux generated by current flowing through the electrode pair.

  C ... center line (of opening), S1, S2 ... internal space, 1 ... wiring duct, 4 ... signal transmission path, 7 ... duct connection member (connection member for wiring duct), 10 ... core, 1a, 1b, 1c ... Openings, 30, 40 ... Electrode pairs, 31, 32, 41, 42 ... Conductors, 60 ... Blocking walls.

Claims (12)

A wiring duct comprising a core made of a metal material and a plurality of electrode pairs provided inside the core, each of the electrode pairs being constituted by two conductors,
A plurality of the electrode pairs are provided at intervals in a predetermined direction,
The two conductors constituting one electrode pair are provided at a distance in a direction perpendicular to the predetermined direction;
A wiring duct characterized in that a shielding wall made of a metal material is provided between the plurality of electrode pairs, extending in a direction perpendicular to the predetermined direction.   The wiring duct according to claim 1, wherein the blocking wall is formed integrally with the core.   The wiring duct according to claim 2, wherein the blocking wall is joined to the core, and the blocking wall is integrally formed with the core. The core is divided by the blocking wall and has a plurality of internal spaces provided with the electrode pairs,
The core is provided with a plurality of openings that open the internal space, and the plurality of openings are opened in different directions. Wiring duct according to item.   5. The wiring according to claim 4, wherein the core is formed so that a cross-sectional shape thereof is line symmetric in the predetermined direction, whereby the plurality of openings are opened in different directions. duct.   The wiring duct according to claim 1, wherein the core is made of a non-magnetic metal material.   The wiring duct according to any one of claims 1 to 6, wherein the core and the blocking wall are made of a nonmagnetic metal material.   The wiring duct according to any one of claims 1 to 7, wherein capacitances of two conductors constituting one electrode pair are equal to each other. A wiring duct comprising a core made of a metal material and a plurality of electrode pairs provided inside the core, each of the electrode pairs being constituted by two conductors,
A plurality of the electrode pairs are provided at intervals in a predetermined direction,
The two conductors constituting one electrode pair are provided at a distance in a direction perpendicular to the predetermined direction;
A wiring duct, wherein the two conductors constituting one electrode pair have the same capacitance. The core is provided with an opening that opens an internal space in which the electrode pair is provided,
The core is formed so as to be symmetrical with respect to a center line that bisects the opening in a cross section perpendicular to the longitudinal direction of the core;
The two conductors constituting one electrode pair are arranged at positions that are line-symmetric with respect to the center line in a cross section perpendicular to the longitudinal direction of the core. Or the wiring duct of 8. A wiring duct system comprising a plurality of wiring ducts according to any one of claims 1 to 10, wherein a signal transmission path is formed by connecting the electrode pairs included in each of the wiring ducts to each other,
The wiring duct system, wherein the signal transmission path has a structure that reverses the direction of magnetic flux generated when a current flows through the electrode pair forming the signal transmission path.   The wiring duct system according to claim 11, further comprising a wiring duct connecting member that connects the plurality of wiring ducts to each other, and the direction of the magnetic flux is reversed by the wiring duct connecting member.

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