JP2010200499A - Wiring duct system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring duct system which suppresses the generation of inductive coupling, without having to install a structure for suppressing the generation of inductive coupling in a wiring duct. <P>SOLUTION: The wiring duct system 1 includes an electric power transmission path 2, a signal transmission path 3, and the wiring duct 4, which stores an electric power transmission conductor 20 and a signal transmission conductor 30. A part of the electric power transmission path 2 is structured with the power transmission conductor 20, and a part of the signal transmission path 3 is structured with the signal transmission conductor 30. The signal transmission path 3 has an inductive coupling suppressing structure which suppresses the generation of inductive coupling, and the inductive coupling suppressing structure is provided at plural positions. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power transmission path formed by a power transmission conductor and a signal transmission conductor housed in a wiring duct, and a wiring duct system including a signal transmission path.

  Generally, it is known to provide a wiring duct system in order to supply electric power to an electric device indoors such as a factory, a store, or an office. In a wiring duct system, a wiring duct that houses a conductor for supplying electric power to an electrical device is laid in the upper part of the room, and an electrical device such as a lighting device or a power device is connected to the wiring duct via a wiring duct plug. It is configured to be connected to the conductor.

  Further, a wiring duct system including a power transmission path and a signal transmission path is known (see, for example, Patent Document 1). Such a wiring duct system is configured by using a wiring duct that houses a power transmission conductor and a signal transmission conductor. Specifically, a power transmission path is accommodated by a power transmission conductor housed in the wiring duct. A part of the signal transmission path is configured by the signal transmission conductor housed in the wiring duct.

JP-A-57-211920

  By the way, when the power transmission conductor and the signal transmission conductor are housed in the wiring duct as described above, it is necessary to suppress the occurrence of inductive coupling (that is, electromagnetic inductive coupling) that causes electrical noise. . Patent Document 1 describes that a power transmission conductor and a signal transmission conductor are partitioned by a branch wall, and thus a structure that suppresses the occurrence of inductive coupling is provided in a wiring duct to thereby induce induction. Generation | occurrence | production of a coupling | bonding can be suppressed.

  However, when a structure that suppresses the occurrence of inductive coupling is provided in the wiring duct, the degree of freedom in designing the wiring duct that houses the power transmission conductor and the signal transmission conductor is low, and the shape of the wiring duct is complicated. There was an inconvenience of becoming.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a wiring duct system capable of suppressing the occurrence of inductive coupling without providing the wiring duct with a structure for suppressing the occurrence of inductive coupling. There is to do.

  The invention according to claim 1 includes a power transmission path, a signal transmission path, and a power transmission conductor and a wiring duct that houses the signal transmission conductor. In the wiring duct system in which a part of the signal transmission path is configured by the signal transmission conductor, at least one of the power transmission path and the signal transmission path suppresses inductive coupling. It has an inductive coupling suppression structure, and the inductive coupling suppression structure is provided at a plurality of locations.

  According to this configuration, at least one of the power transmission path and the signal transmission path has the inductive coupling suppression structure that suppresses the occurrence of inductive coupling. Inductive coupling can be suppressed without providing it. In addition, since the inductive coupling suppression structure is provided at a plurality of locations in the wiring duct system, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system.

  The invention according to claim 2 is the wiring duct system according to claim 1, further comprising a plurality of wiring ducts, further comprising a duct connecting member for connecting the plurality of wiring ducts to each other, and a power transmission path and signal transmission. At least one of the paths has an inductive coupling suppressing structure in the duct connecting member.

  According to this configuration, at least one of the power transmission path and the signal transmission path has an inductive coupling suppression structure in the duct connection member that connects the plurality of wiring ducts to each other. For this reason, a plurality of wiring ducts are connected to each other using a duct connecting member to constitute a wiring duct system, whereby the power transmission conductor and the signal transmission conductor housed in the wiring duct have an inductive coupling suppression structure. Even if not, the occurrence of inductive coupling can be suppressed. As a result, the wiring duct system of the present invention can be configured using a conventional wiring duct having no inductive coupling suppression structure. Therefore, the wiring duct can have the same conventional cross-sectional structure.

  The invention according to claim 3 is the wiring duct system according to claim 1 or 2, wherein at least one of the power transmission path and the signal transmission path has an inductive coupling suppression structure in the wiring duct. It is characterized by being.

  According to this configuration, at least one of the power transmission path and the signal transmission path has the inductive coupling suppression structure in the wiring duct. For this reason, for example, when a wiring duct system is configured by connecting a plurality of wiring ducts using a duct connecting member, the duct connecting member that connects the plurality of wiring ducts does not have an inductive coupling suppression structure. Even in this case, the occurrence of inductive coupling can be suppressed. Further, even when a plurality of wiring ducts are directly connected to each other without using a duct connecting member, inductive coupling can be suppressed. As a result, the wiring duct system of the present invention configured by connecting a plurality of wiring ducts to each other using a conventional duct connecting member that does not have an inductive coupling suppressing structure can be configured. Therefore, the duct connecting member can have a small structure as before.

  According to a fourth aspect of the present invention, in the wiring duct system according to any one of the first to third aspects, the transmission path having an inductive coupling suppression structure among the power transmission conductor and the signal transmission conductor. A part of the conductor is composed of a plurality of conductors extending along the longitudinal direction of the wiring duct, and the inductive coupling suppression structure is a structure that reverses the direction of the magnetic flux generated when current flows through the plurality of conductors. It is characterized by being.

  According to this configuration, at least one of the power transmission path and the signal transmission path has an inductive coupling suppression structure in which a current is supplied to a plurality of conductors as at least one of the power transmission conductor and the signal transmission conductor. This structure reverses the direction of magnetic flux generated by flowing. For this reason, the magnetic fluxes generated by the current flowing through the plurality of conductors cancel each other, the generation of the induction magnetic field by the plurality of conductors can be suppressed, and the induction current can be suppressed from flowing through the plurality of conductors, It is possible to suppress the occurrence of inductive coupling in the entire wiring duct system.

  According to a fifth aspect of the present invention, in the wiring duct system according to the fourth aspect, the direction of the magnetic flux is reversed by exchanging the polarities of a plurality of conductors provided in parallel to each other.

  According to this configuration, the direction of the magnetic flux is reversed by switching the polarities of a plurality of conductors provided in parallel to each other. For this reason, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system, for example, by connecting the two conductors housed in each wiring duct so as to intersect each other in the duct connecting member.

  According to a sixth aspect of the present invention, in the wiring duct system according to any one of the first to fifth aspects, the inductive coupling suppression structure is one of at least one of a power transmission line and a signal transmission line. The structure is characterized in that a noise reduction component is provided in the part.

  According to the configuration, the inductive coupling suppression structure included in at least one of the power transmission path and the signal transmission path is provided with a noise reduction component in at least a part of the power transmission path and the signal transmission path. Structure. For this reason, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system by providing a noise reduction component such as a ferrite core in at least a part of at least one of the power transmission path and the signal transmission path.

  The invention according to claim 7 is the wiring duct system according to claim 4 or 5, further comprising a duct connecting member that connects at least two wiring ducts to each other, and the duct connecting member is inserted into the wiring duct. The inductive coupling suppression structure has one end part and the other end part inserted into another wiring duct. The inductive coupling suppression structure is a structure that reverses the direction of magnetic flux generated by current flowing through a plurality of conductors in the duct connecting member. Yes, when the outer shape of the duct connecting member at one end and the other end is compared, the outer shape of the duct connecting member is an inverted shape.

  According to the same configuration, the inductive coupling suppression structure is a structure in which the direction of the magnetic flux generated by the current flowing through the plurality of conductors is reversed in the duct connection member, and at one end and the other end of the duct connection member The shape of the duct connecting member is reversed. Therefore, if the two wiring ducts having the same cross-sectional shape connected to the duct connecting member have an asymmetrical shape, one end of the duct connecting member is inserted into the wiring duct and the other end By inserting the portion into another wiring duct, the two wiring ducts can be connected so that the polarities of the plurality of conductors housed in the two wiring ducts are reversed. Therefore, it is possible to confirm that the two wiring ducts are connected by changing the polarity of the conductor so that the direction of the magnetic flux is reversed, and it is possible to prevent erroneous connection.

  According to the present invention, it is possible to suppress the occurrence of inductive coupling without providing the wiring duct with a structure for suppressing the occurrence of inductive coupling. In addition, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system.

The lineblock diagram showing the schematic structure of the wiring duct system concerning a 1st embodiment of the present invention. The perspective view of the wiring duct and duct connection member which comprise the wiring duct system which concerns on the same embodiment. The side view which looked at the wiring duct which concerns on the same embodiment from the longitudinal direction. The side view which looked at the duct connection member concerning the embodiment from the longitudinal direction. (A) (b) The perspective view which shows the external appearance of the duct connection member which concerns on the same embodiment. FIG. 6 is a side view of the duct connecting member according to the embodiment, and is a side view as seen from an arrow V1 in FIG. 5. FIG. 6 is a side view of the duct connecting member according to the embodiment, and is a side view as seen from an arrow V2 in FIG. 5. The side view of the wiring duct which shows the part to which a some wiring duct is connected in the wiring duct system which concerns on the same embodiment. Sectional drawing of the S1-S1 part of FIG. Sectional drawing of the S2-S2 part of FIG. The figure which shows the direction of the magnetic flux which generate | occur | produces when an electric current flows into the conductor accommodated in a wiring duct. The block diagram which shows schematic structure of the wiring duct system which concerns on the 2nd Embodiment of this invention. The block diagram which shows schematic structure of the wiring duct system which concerns on the 3rd Embodiment of this invention.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The wiring duct system according to the present invention is provided in order to supply electric power to an electric device (not shown) and to make a communication device (not shown) communicable indoors, such as in a factory or a store.

  As shown in FIG. 1, the wiring duct system 1 includes a power transmission path 2, a signal transmission path 3, and a wiring duct 4 that houses a power transmission conductor 20 and a signal transmission conductor 30. The power transmission conductor 20 constitutes a part of the power transmission path 2, and the signal transmission conductor 30 constitutes a part of the signal transmission path 3. In this embodiment, the wiring duct system 1 includes a plurality of wiring ducts 4 and further includes a duct connecting member 5 that connects the plurality of wiring ducts 4 to each other.

  In the wiring duct system 1 according to the present invention, the signal transmission path 3 has an inductive coupling suppressing structure that suppresses the occurrence of inductive coupling that causes electrical noise. The inductive coupling suppressing structure is a wiring duct system. 1 is provided at a plurality of locations. Hereinafter, the components of the wiring duct system 1 according to the present invention will be described in detail.

  The power transmission path 2 is a power line laid on a ceiling (not shown) for supplying power to an electrical device, and is connected to a wiring (not shown) in a distribution board for distributing power. Yes. By connecting the electrical device to the power transmission path 2, power is supplied to the electrical device. In the wiring duct 4, the power transmission path 2 is constituted by a power transmission conductor 20.

  The signal transmission path 3 is a signal line laid on the ceiling for transmitting a signal transmitted from the communication device or a signal to be received by the communication device, and is connected to the communication device that transmits and / or receives the signal. Is done. By connecting the communication device to the signal transmission path 3, the communication device becomes communicable. In the wiring duct 4, the signal transmission path 3 is constituted by a signal transmission conductor 30.

  As shown in FIG. 2, the wiring duct 4 having a length of 1 to 3 m in the longitudinal direction has a long hollow shape continuously opened downward along the longitudinal direction, and extends from the ceiling. It is provided at the indoor upper part by a suspended tool (not shown). An end portion 40 a in the longitudinal direction of the wiring duct 4 is opened, and the plurality of wiring ducts 4 are connected by a duct connecting member 5 inserted into each wiring duct 4.

  As shown in FIG. 3, the wiring duct 4 is formed by a bent metal core 41 and an insulating resin 42 covering the core 41, and the power transmission conductor 20 is placed inside the wiring duct 4. A conductor support 43 for supporting and a conductor support 44 for supporting the signal transmission conductor 30 are formed. The conductor support portions 43 and 44 are formed of an insulating resin 42. In addition, a ground electrode 45, which is a grounded metal, is connected to the core member 41 in the upper part of the wiring duct 4.

  Further, a protrusion 46 for preventing a duct connecting member (not shown) that should not be inserted from being inserted into the wiring duct 4 is provided inside the wiring duct 4. The protruding portion 46 is formed of an insulating resin 42. By providing such a protruding portion 46, the wiring duct 4 has an asymmetric shape. In the present embodiment, a protrusion 47 is provided outside the wiring duct 4 to indicate that the inside of the wiring duct 4 has an asymmetric shape.

  The power transmission conductor 20 is a conductor that extends along the longitudinal direction of the wiring duct 4, is supported by a conductor support portion 43 formed in the wiring duct 4, and is provided in the wiring duct 4. . In the present embodiment, the power transmission conductor 20 includes a pair of conductors 21 and 22, and the conductors 21 and 22 are electrodes exposed inside the wiring duct 4 along the longitudinal direction. The pair of conductors 21 and 22 are provided so as to face each other. Since the conductors 21 and 22 provided in the wiring duct 4 are connected to the wiring in the distribution board, the pair of conductors 21 and 22 are electrodes to which an AC voltage is applied.

  As described above, since the power transmission conductor 20 is exposed in the wiring duct 4 along the longitudinal direction of the wiring duct 4 having the opening, the power transmission is performed at an arbitrary position of the wiring duct 4. An electric device can be connected to the pair of conductors 21 and 22 that are the conductors 20. When such a connection is made, the connection can be easily made by using a wiring duct plug (not shown).

  The signal transmission conductor 30 is a conductor extending along the longitudinal direction of the wiring duct 4, is supported by a conductor support portion 44 formed in the wiring duct 4, and is provided in the wiring duct 4. . In the present embodiment, the signal transmission conductor 30 includes a pair of conductors 31 and 32, and the conductors 31 and 32 are exposed inside the wiring duct 4 along the longitudinal direction, like the conductors 21 and 22. Electrode. The pair of conductors 21 and 22 are provided so as to face each other. In this embodiment, the signal transmission conductor 30 is provided above the power transmission conductor 20, but the power transmission conductor 20 may be provided above the signal transmission conductor 30. .

  As described above, since the signal transmission conductor 30 is exposed in the wiring duct 4 along the longitudinal direction of the wiring duct 4 having the opening, the signal transmission is performed at an arbitrary position of the wiring duct 4. A communication device can be connected to the pair of conductors 31 and 32 that are the conductors 30.

  The duct connecting member 5 is a joiner having a shape extending in the longitudinal direction of the wiring duct 4. That is, as shown in FIG. 4, the duct connecting member 5 has a shape that can be inserted into the opening of the end 40 a of the wiring duct 4, and the duct connecting member 5 is inserted into the wiring duct 4. In addition, an electrode 52 connected to the conductors 21 and 22 and an electrode 53 connected to the conductors 31 and 32 are provided. As shown in FIG. 5, the duct connecting member 5 has one end 50 a and the other end 50 b inserted into the wiring duct 4.

  As shown in FIGS. 6 and 7, one end portion 50 a of the duct connection member 5 has a pair of connection terminals 52 a and 52 b connected to the conductors 21 and 22 and a pair of connection terminals connected to the conductors 31 and 32. 53a and 53b are provided. The other end portion 50b of the duct connection member 5 is also provided with a pair of connection terminals 52c and 52d connected to the conductors 21 and 22 and a pair of connection terminals 53c and 53d connected to the conductors 31 and 32. ing. The connection terminals 52a, 52b, 52c, and 52d constitute an electrode 52 that constitutes a part of the power transmission line 2, and the connection terminals 53a, 53b, 53c, and 53d constitute a part of the signal transmission line 3. The electrode 53 to be configured is configured.

  In the present embodiment, inside the duct connection member 5, the connection terminal 52a and the connection terminal 52d are connected by a signal line, and the connection terminal 52b and the connection terminal 52c are connected by a signal line. Further, inside the duct connection member 5, the connection terminal 53a and the connection terminal 53c are connected by a signal line, and the connection terminal 53b and the connection terminal 53d are connected by a signal line.

  In the present embodiment, the duct connecting member 5 has an asymmetric shape so as to be inserted into the wiring duct 4 so as not to interfere with the protruding portion 46 formed inside the wiring duct 4. That is, when comparing the outer shape of the duct connecting member 5 at the one end portion 50a and the other end portion 50b, the outer shape of the duct connecting member 5 is an inverted shape, and the duct connecting member (not shown) is not inserted into the duct. An erroneous insertion prevention mechanism for preventing the connection member 5 from being inserted is provided in an inverted manner at the one end 50a and the other end 50b.

  When a plurality of wiring ducts 4 are connected using the plurality of duct connecting members 5 configured as described above, the plurality of conductors 31 housed in the plurality of wiring ducts 4 are 1 along the longitudinal direction. The plurality of conductors 32 provided so as to be continuous on one straight line and housed in the plurality of wiring ducts 4 are also provided so as to be continuous on one straight line along the longitudinal direction. Similarly, the plurality of conductors 21 housed in the plurality of wiring ducts 4 are provided so as to be continuous on one straight line along the longitudinal direction, and the plurality of conductors 22 housed in the plurality of wiring ducts 4. Are also provided so as to be continuous on one straight line along the longitudinal direction.

  Here, in this embodiment, in each duct connection member 5, since the connection terminal 53a and the connection terminal 53d are connected, and the connection terminal 53b and the connection terminal 53c are connected, 2 adjacently provided. In one wiring duct 4, the polarities of the conductor 31 and the conductor 32 are alternated.

  That is, as shown in FIGS. 9 and 10, when the duct connecting member 5 is inserted into the two wiring ducts 4, the conductor 31 housed in one of the two wiring ducts 4 connected to each other is Since it is connected to the connection terminal 53a connected to the connection terminal 53c, it is connected to the conductor 32 accommodated in the other wiring duct 4. Further, the conductor 32 housed in one of the two wiring ducts 4 connected to each other is connected to the connection terminal 53b connected to the connection terminal 53d, so that the conductor 32 is housed in the other wiring duct 4. The conductor 31 is connected. 9 is a cross-sectional view taken along line S1-S1 in FIG. 8 showing a state where two wiring ducts are connected, and FIG. 10 is a cross-sectional view taken along line S2-S2 in FIG.

  In the present embodiment, the conductor 21 accommodated in one of the two wiring ducts 4 connected to each other is connected to the connection terminal 52a connected to the connection terminal 52d. It is connected to the conductor 21 accommodated in the wiring duct 4. In addition, the conductor 22 accommodated in one of the two wiring ducts 4 connected to each other is connected to the connection terminal 52d connected to the connection terminal 52c, and thus is accommodated in the other wiring duct 4. The conductor 22 is connected.

  As described above, since the plurality of conductors 31 and 32 are crossed and connected at the duct connecting member 5, the wiring duct system 1 causes a current to flow through the plurality of conductors 31 and 32 as shown in FIG. The structure of reversing the direction of the magnetic flux generated by this is provided. Such a structure that reverses the direction of the magnetic flux exhibits a function as an inductive coupling suppressing structure that suppresses inductive coupling. That is, the magnetic fluxes generated by the current flowing through the plurality of conductors 31 and 32 cancel each other, and the generation of the induction magnetic field by the plurality of conductors 31 and 32 is suppressed, and the induction current is generated in the plurality of conductors 31 and 32. Flow is suppressed. In addition, about the mark attached | subjected between the conductor 31 and the conductor 32 in FIG. 11, the mark of a black dot in a circle shows the direction which comes to a drawing reference person, and the cross mark in a circle moves away from a drawing reference person. Indicates direction.

According to the wiring duct system 1 of the present embodiment, the following effects can be obtained.
(1) Since the signal transmission path 3 has an inductive coupling suppression structure that suppresses the generation of inductive coupling, the inductive coupling can be generated without providing the wiring duct 4 with a structure for suppressing the generation of inductive coupling. Can be suppressed. In addition, since the inductive coupling suppression structure is provided at a plurality of locations of the wiring duct system 1, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system 1.

  (2) The signal transmission path 3 has an inductive coupling suppression structure in the duct connection member 5 that connects the plurality of wiring ducts 4 to each other. For this reason, a plurality of wiring ducts 4 are connected to each other using the duct connecting member 5 to constitute the wiring duct system 1, whereby the power transmission conductor 20 and the signal transmission conductor 30 housed in the wiring duct 4 are guided. Even if it does not have a binding suppression structure, the occurrence of inductive coupling can be suppressed. As a result, the wiring duct system 1 of the present invention can be configured using the conventional wiring duct 4 that does not have the inductive coupling suppression structure. Therefore, the wiring duct 4 can have the same conventional cross-sectional structure.

  (3) The inductive coupling suppression structure included in the signal transmission path 3 is a structure that reverses the direction of magnetic flux generated when a current flows through the plurality of conductors 31 and 32 as the signal transmission conductor 30. For this reason, the magnetic fluxes generated by the current flowing through the plurality of conductors 31 and 32 cancel each other, the generation of the induction magnetic field by the plurality of conductors 31 and 32 is suppressed, and the induction current is generated in the plurality of conductors 31 and 32. Flow can be suppressed, and inductive coupling can be suppressed in the entire wiring duct system 1.

  (4) By reversing the polarities of the plurality of conductors 31 and 32 provided in parallel to each other, the direction of the magnetic flux generated by the current flowing through the plurality of conductors 31 and 32 is reversed. For this reason, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system 1 by connecting the two conductors 31 and 32 housed in each wiring duct 4 so as to intersect each other in the duct connecting member 5. .

  (5) The inductive coupling suppression structure is a structure in which the direction of magnetic flux generated by current flowing through the plurality of conductors 31 and 32 is reversed in the duct connection member 5. When the outer shape of the duct connecting member 5 at the end 50b is compared, the outer shape of the duct connecting member 5 is reversed. For this reason, when the two wiring ducts 4 having the same cross-sectional shape connected to the duct connecting member 5 have an asymmetric shape, the one end portion 50a of the duct connecting member 5 is inserted into the wiring duct 4. Then, the two wiring ducts 4 are connected so that the polarities of the plurality of conductors 31 and 32 housed in the two wiring ducts 4 are reversed by inserting the other end portion 50b into the other wiring duct 4. Can do. Accordingly, it is possible to confirm that the two wiring ducts 4 are connected by changing the polarities of the conductors 31 and 32 so that the direction of the magnetic flux is reversed, and the communication device connected to the conductors 31 and 32 is erroneously connected. Prevention can be achieved.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. About the component of the wiring duct system 1 which concerns on this embodiment, about the structure of the wiring duct 4, etc., since it is the same as that of the above-mentioned 1st Embodiment, detailed description is abbreviate | omitted here.

  In the present embodiment, in the two wiring ducts 4 provided adjacent to each other, an inductive coupling suppression structure is configured using electronic components instead of the inductive coupling suppression structure having a configuration in which the polarities of the conductor 31 and the conductor 32 alternate. is doing.

  That is, in this embodiment, in the duct connection member 5, the connection terminal 53a and the connection terminal 53d are connected by a signal line, and the connection terminal 53b and the connection terminal 53c are connected by a signal line. As shown in FIG. 12, a ferrite core 6 is provided in each duct connecting member 5, and the ferrite core 6 covers a signal line constituting the signal transmission path 3.

According to the wiring duct system 1 of the present embodiment, the following effects can be obtained in addition to the effects (1) and (2).
(6) The inductive coupling suppression structure of the signal transmission path 3 is a structure in which a ferrite core 6 as a noise reduction component is provided in a part of the signal transmission path 3. For this reason, by providing the ferrite core 6 in a part of the signal transmission path 3, it is possible to suppress the occurrence of inductive coupling in the entire wiring duct system 1.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, the signal transmission path 3 has an inductive coupling suppression structure in the wiring duct 4 instead of the inductive coupling suppression structure in the duct connecting member 5.

  That is, in the present embodiment, in the duct connection member 5, the connection terminal 53a and the connection terminal 53d are connected by a signal line, and the connection terminal 53b and the connection terminal 53c are connected by a signal line. The duct connection member 5 which concerns on a form is the conventional joiner which does not have an inductive coupling suppression structure. In the present embodiment, at the end 40a of the wiring duct 4, the conductor 31 and the conductor 32 are provided so as to intersect with each other. For this reason, as in the first embodiment, the wiring duct system 1 includes a plurality of wiring duct systems 1. It has a structure that reverses the direction of the magnetic flux generated by the current flowing through the conductors 31 and 32.

According to the wiring duct system 1 of the present embodiment, the following effects can be obtained in addition to the effects (1) and (3).
(7) The signal transmission path 3 has an inductive coupling suppression structure in the wiring duct 4. Therefore, when the wiring duct system 1 is configured by connecting the plurality of wiring ducts 4 to each other using the duct connecting member 5, the duct connecting member 5 that connects the plurality of wiring ducts 4 has an inductive coupling suppression structure. Even if not, inductive coupling can be suppressed. Moreover, even if it is a case where the some wiring duct 4 is directly connected mutually without using the duct connection member 5, generation | occurrence | production of an inductive coupling can be suppressed. As a result, the wiring duct system 1 of the present invention configured by connecting a plurality of wiring ducts 4 to each other can be configured using the duct connecting member 5 that does not have the inductive coupling suppression structure. Therefore, the duct connecting member 5 can have a small structure as in the prior art.

  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, you may change the said embodiment as follows.

(Other embodiments)
-As long as the effect of said (1) can be acquired, you may combine the inductive coupling suppression structure of said 1st-3rd embodiment.

  In the second embodiment, the ferrite core 6 is provided as part of the signal transmission path 3 as a noise reduction component. However, other noise reduction components (not shown) may be used as part of the signal transmission path 3. You may provide in a part. For example, a choke coil constituting a noise filter circuit may be provided as part of the transmission path 3 as a noise reduction component.

  In each of the above embodiments, the conductors 31 and 32 that constitute a part of the signal transmission path 3 having the inductive coupling suppression structure are two conductors that extend along the longitudinal direction of the wiring duct 4. However, the present invention is not limited to this. That is, as long as the signal transmission path 3 has an inductive coupling suppression structure, the number of conductors in the wiring duct 4 constituting a part of the signal transmission path 3 may be changed as appropriate. Similarly, the number of conductors in the wiring duct 4 constituting a part of the power transmission path 2 may be appropriately changed.

  In each of the above embodiments, only the signal transmission path 3 has an inductive coupling suppression structure, but the power transmission path 2 may have an inductive coupling suppression structure. The inductive coupling suppression structure can be applied to the power transmission line 2 according to the above embodiment, and even in such a case, the operational effect according to the above embodiment can be obtained. That is, it is sufficient if at least one of the power transmission line 2 and the signal transmission line 3 has an inductive coupling suppression structure. Further, if both the power transmission path 2 and the signal transmission path 3 have an inductive coupling suppression structure, the occurrence of inductive coupling can be further suppressed.

  DESCRIPTION OF SYMBOLS 1 ... Wiring duct system, 2 ... Electric power transmission line, 3 ... Signal transmission line, 4 ... Wiring duct, 5 ... Duct connection member, 6 ... Ferrite core (noise reduction component), 20 ... Conductor for electric power transmission, 21, DESCRIPTION OF SYMBOLS 22 ... Conductor, 30 ... Signal transmission conductor 31, 32 ... Conductor, 40a ... End part, 41 ... Core material, 42 ... Insulating resin, 43, 44 ... Conductor support part, 45 ... Ground electrode, 46, 47 ... Projection, 50a ... one end, 50b ... other end, 52, 53 ... electrode, 52a, 52b, 52c, 52d ... connection terminal, 53a, 53b, 53c, 53d ... connection terminal.

Claims (7)

A power transmission path, a signal transmission path, and a wiring duct that houses the power transmission conductor and the signal transmission conductor, and the power transmission conductor constitutes a part of the power transmission path; In the wiring duct system in which a part of the signal transmission path is constituted by the signal transmission conductor,
At least one of the power transmission path and the signal transmission path has an inductive coupling suppression structure that suppresses inductive coupling, and the inductive coupling suppression structure is provided at a plurality of locations. Wiring duct system. A plurality of the wiring ducts, and further comprising a duct connecting member that connects the plurality of wiring ducts to each other,
2. The wiring duct system according to claim 1, wherein at least one of the power transmission path and the signal transmission path includes the inductive coupling suppression structure in the duct connection member.   The wiring duct system according to claim 1, wherein at least one of the power transmission path and the signal transmission path includes the inductive coupling suppression structure in the wiring duct. Of the power transmission conductor and the signal transmission conductor, a conductor constituting a part of the transmission path having the inductive coupling suppression structure is composed of a plurality of conductors extending along the longitudinal direction of the wiring duct. ,
4. The wiring duct according to claim 1, wherein the inductive coupling suppression structure is a structure that reverses a direction of a magnetic flux generated when a current flows through the plurality of conductors. 5. system.   The wiring duct system according to claim 4, wherein the direction of the magnetic flux is reversed by switching the polarities of the plurality of conductors provided in parallel to each other.   6. The inductive coupling suppression structure according to claim 1, wherein a noise reduction component is provided in a part of at least one of the power transmission path and the signal transmission path. The wiring duct system according to claim 1. A duct connecting member for connecting at least two of the wiring ducts to each other, the duct connecting member having one end inserted into the wiring duct and the other end inserted into the other wiring duct;
The inductive coupling suppression structure is a structure that reverses the direction of magnetic flux generated by current flowing through the plurality of conductors in the duct connecting member, and the duct connecting member at the one end and the other end The wiring duct system according to claim 4 or 5, wherein the outer shape of the duct connecting member is an inverted shape when the outer shapes are compared.

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