Wiring duct and wiring duct system

Abstract

The present invention addresses the problem of increasing the flexibility of an installation location.　A wiring duct (1) is provided with a first conductor (E1), a second conductor (E2), a body (10), and an insulating member (3). The first conductor (E1) is supplied with a first voltage from a power supply. The second conductor (E2) supplies a second voltage lower than the first voltage to a load. The body (10) holds the first conductor (E1) and the second conductor (E2). The first conductor (E1) is held by the body (10) in a state of being covered by the insulating member (3). The second conductor (E2) is held by the body (10) in a state in which at least a part of the second conductor (E2) is exposed. The second voltage is a DC voltage equal to or less than a predetermined value.

Description

Wiring ducts and wiring duct systems

[0001] FIELD OF THE DISCLOSURE The present disclosure relates generally to wiring ducts and wiring duct systems.

[0002] Patent Document 1 discloses a wiring duct having a power conductor and a communication conductor.

[0003] In a wiring duct such as that disclosed in Patent Document 1, the power conductors, which supply a higher voltage than the communication conductors, are exposed, which creates a problem in that the wiring duct cannot be installed in a location where a part of the user's body (e.g., a hand) may come into contact with the power conductors.

[0004] JP 2012-009258 A

[0005] The present disclosure has been made in view of the above-mentioned circumstances, and aims to provide a wiring duct and a wiring duct system that can improve the degree of freedom in installation location.

[0006] A wiring duct according to one aspect of the present disclosure includes a first conductor to which a first voltage is supplied from a power source, a second conductor to which a second voltage lower than the first voltage is supplied to a load, a main body that holds the first conductor and the second conductor, and an insulating member. The first conductor is held in the main body while being covered by the insulating member. The second conductor is held in the main body while at least a portion thereof is exposed. The second voltage is a DC voltage equal to or lower than a predetermined value.

[0007] A wiring duct system according to one aspect of the present disclosure includes the wiring duct, another wiring duct electrically connected to the first conductor, and a power supply member that supplies the first voltage from the power source to the first conductor.

[0008] Fig. 1 is an external view showing an example of use of a wiring duct system according to an embodiment of the present disclosure, Fig. 2 is a cross-sectional view of a wiring duct included in the wiring duct system, Fig. 3 is a simulated wiring diagram of the wiring duct system, and Fig. 4 is a simulated wiring diagram of a wiring duct system of a comparative example.

[0009] A wiring duct 1 according to an embodiment of the present disclosure will be described in detail with reference to the drawings. Note that the figures described in the following embodiments are schematic diagrams, and the size and thickness ratios of the components in the figures do not necessarily reflect the actual dimensional ratios. Furthermore, the "wiring duct" that is the wiring duct 1 described below is also referred to as a power feed track. Furthermore, the "wiring duct" is also referred to as a wiring duct rail. Furthermore, the embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to the embodiments and modifications. Various modifications other than these embodiments and modifications are possible depending on the design, etc., as long as they do not deviate from the technical concept of the present disclosure. Furthermore, the following embodiments (including modifications) may be realized in appropriate combinations.

[0010] (1) Overview First, an overview of the wiring duct 1 and the wiring duct system 100 according to this embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0011] The wiring duct system 100 is installed on the construction surface S1 of the facility as shown in Fig. 1. Although not shown in Fig. 1, it is preferable that the wiring duct system 100 is housed in a connecting member and installed on the construction surface S1 via the connecting member.

[0012] The wiring duct system 100 includes a wiring duct 1 (1A), another wiring duct (wiring duct 1 (1B)), and a power supply member 2 that supplies voltage to the wiring duct 1 from a power source PS1 (see FIG. 3).

[0013] The wiring duct 1 is used to supply power to a load LD in a facility. Here, the "facility" may be a residential or non-residential facility. Examples of residential facilities include detached houses and apartment buildings. Examples of non-residential facilities include office buildings, commercial facilities, accommodation facilities, complexes, warehouses, factories, etc. The load LD may be, for example, a lighting fixture, a surveillance camera, a motion sensor, a reel outlet, etc.

[0014] As shown in FIG. 2 , the wiring duct 1 includes a first conductor E1 , a second conductor E2 , a main body 10 , and an insulating member 3 .

[0015] The first conductor E1 is supplied with a first voltage V1 from a power supply PS1 (see FIG. 3).

[0016] The second conductor E2 supplies a second voltage V2, which is lower than the first voltage V1, to the load LD.

[0017] The body 10 holds a first conductor E1 and a second conductor E2.

[0018] The first conductor E1 is held in the main body 10 while being covered with an insulating member 3.

[0019] The second conductor E2 is held by the main body 10 with at least a portion thereof exposed.

[0020] The second voltage V2 is a DC voltage equal to or lower than a predetermined value.

[0021] In the above configuration, the first conductor E1, which supplies the first voltage V1, is covered by the insulating member 3 and held in the main body 10. Furthermore, the second voltage V2, which is exposed, is supplied by the second conductor E2, and is a DC voltage lower than the first voltage V1. Therefore, with the above configuration, the wiring duct 1 and the wiring duct system 100 can be installed in a location where a part of the user's body (e.g., a finger) may come into contact with the first conductor E1. Therefore, with the above configuration, the degree of freedom in the installation location of the wiring duct system 100 can be improved.

[0022] In the following description, when the wiring duct system 100 is installed on a wall surface, such as the construction surface S1, the direction perpendicular to the wall surface is referred to as the "front-rear direction," and the direction normal to the wall surface is referred to as the "forward direction." Furthermore, the longitudinal direction of the wiring duct 1 is referred to as the "left-right direction," and the direction perpendicular to the "front-rear direction" and "left-right direction" is referred to as the "up-down direction." Specifically, in Figures 1 and 2, the positive direction of the X-axis is referred to as the "forward direction," the positive direction of the Y-axis is referred to as the "leftward direction," and the positive direction of the Z-axis is referred to as the "upward direction." Note that the arrows indicating the X-axis, Y-axis, and Z-axis directions in the drawings are merely for illustrative purposes and do not represent any physical entities. Furthermore, these directions are not intended to limit the installation state or location of the wiring duct system 100.

[0023] Furthermore, in the present disclosure, the "orthogonal" direction does not only mean the strict 90° direction, but also includes directions that can be regarded as the same as the 90° direction in light of common technical knowledge, as long as the present embodiment achieves the intended effect.

[0024] (2) Configuration The configuration of the wiring duct system 100 will be described in detail below with reference to the drawings.

[0025] 1 and 3, the wiring duct system 100 includes a wiring duct 1 (1A), another wiring duct (wiring duct 1 (1B)), and a power supply member 2. The wiring duct system 100 further includes a relay member 4 for connecting the wiring duct 1 (1A) to the other wiring duct (wiring duct 1 (1B)). The other wiring duct connected to the wiring duct 1 may be another wiring duct 1 or may be a wiring duct having a different configuration from the wiring duct 1.

[0026] As shown in FIG. 2 , the wiring duct 1 includes a main body 10 , a pair of first conductors E1 , a pair of second conductors E2 , and a pair of insulating members 3 .

[0027] As shown in FIG. 1, the main body 10 has an elongated shape that extends in one direction (the left-right direction in this embodiment).

[0028] In this embodiment, the length L1 along the left-right direction of the main body 10 is, for example, 3 m. Note that the length L1 is not limited to 3 m and may be 1 m, 1.5 m, 2 m, etc. Also, the length L1 may be an integer multiple of 1 m, 1.5 m, 2 m, or 3 m. However, it is preferable that the length L1 be 6 m or less. Here, the wiring duct system 100 may have multiple types of wiring ducts 1 with different lengths L1.

[0029] 2, the main body 10 includes wall portions 11 and 12 that face each other in the up-down direction and wall portions 13 and 14 that face each other in the front-rear direction. The wall portion 13 mechanically connects the rear ends of the walls 11 and 12. In other words, the main body 10 has a U-shaped cross section formed by the wall portion 13 and the walls 11 and 12 that protrude forward from both ends of the wall portion 13.

[0030] An opening 15 extending in the left-right direction is provided in the wall 14 of the main body 10. A load LD can be connected to any position in the left-right direction of the opening 15 via a connection device 5, which will be described later.

[0031] 2 and 3, the main body 10 holds a pair of first conductors E1 and a pair of second conductors E2 arranged along the left-right direction. In other words, the pair of first conductors E1 and the pair of second conductors E2 are held by the main body 10 along the left-right direction.

[0032] 2 , one first conductor E11 of the pair of first conductors E1 is held by the wall portion 11. Furthermore, the other first conductor E12 of the pair of first conductors E1 is held by the wall portion 12. In detail, one first conductor E11 of the pair of first conductors E1 is held by the tip of a protrusion 110 of the wall portion 11, and the other first conductor E12 is held by the tip of a protrusion 120 of the wall portion 12.

[0033] The pair of first conductors E1 are covered with the pair of insulating members 3 and held by the protruding portions 110 and 120, respectively.

[0034] The pair of insulating members 3 are made of an insulating material such as synthetic resin. For example, the pair of insulating members 3 are formed integrally with the protruding portions 110 and 120, respectively. Note that the pair of insulating members 3 may also be formed separately from the protruding portions 110 and 120, respectively.

[0035] As shown in FIG. 3 , a first voltage V1 is supplied to the pair of first conductors E1 from a power source PS1 via a power supply member 2. In this embodiment, the power source PS1 supplying power to the pair of first conductors E1 is a single-phase, two-wire commercial AC power source. That is, the first voltage V1 is an AC voltage. The power source PS1 may be a single-phase, three-wire commercial AC power source or a three-phase, three-wire commercial AC power source. The first voltage V1 is an AC voltage with a power supply frequency of 50 Hz or 60 Hz and an effective value of 100 V. The first voltage V1 may also be an AC voltage with an effective value of 200 V.

[0036] Here, because the pair of first conductors E1 are covered by the pair of insulating members 3, even if a user of the wiring duct system 100 accidentally inserts a part of their body (such as a finger) into the main body 10 through the opening 15, there is a low possibility that the part of the user's body will directly touch the first conductors E1. Therefore, the wiring duct system 100 can be installed not only on a construction surface S1 (such as a ceiling) that the user cannot reach, but also on a construction surface S1 such as a wall or bottom where the user's body may come into contact with the first conductors E1. The wiring duct system 100 can also be installed in a location on a piece of furniture, such as a desk, that the user can reach.

[0037] The power supply member 2 is a so-called feed-in cap, and as shown in FIG. 1, is connected to an end portion (for example, the left end portion) of the main body 10 in the left-right direction.

[0038] As shown in FIG. 2, the power supply member 2 has a main body 20 and a pair of connection terminals T1 held by the main body 20.

[0039] A pair of electric wires connected to a power source PS1 is connected to the pair of connection terminals T1, respectively. A pair of first conductors E1 is also connected to the pair of connection terminals T1, respectively. As a result, a first voltage V1 is supplied to the pair of first conductors E1 from the power source PS1 via the power supply member 2. In other words, the power supply member 2 supplies the first voltage V1 from the power source PS1 to the pair of first conductors E1.

[0040] Next, the pair of second conductors E2 will be described. One second conductor E21 of the pair of second conductors E2 is held by the wall portion 11, as shown in FIG. 2 . The other second conductor E22 of the pair of second conductors E2 is held by the wall portion 12. Specifically, one second conductor E21 of the pair of second conductors E2 is held by the tip of a protrusion 111 of the wall portion 11, and the other second conductor E22 is held by the tip of a protrusion 121 of the wall portion 12. Here, the protrusions 111 and 121 are provided below the protrusions 110 and 120. That is, the pair of second conductors E2 is located in front of the pair of first conductors E1.

[0041] 2, the pair of second conductors E2 are held by the protrusions 111 and 121, respectively, with at least a portion of each conductor exposed. Specifically, the second conductor E2 held by the protrusion 111 is exposed downward. The second conductor E2 held by the protrusion 121 is exposed upward.

[0042] The pair of second conductors E2 supplies the load LD with a second voltage V2, which is generated by stepping down the first voltage V1 using a step-down member 6 (see FIG. 3 ), which will be described later. That is, the second voltage V2 is a voltage lower than the first voltage V1. More specifically, the second voltage V2 is a DC voltage equal to or lower than a predetermined value. That is, the step-down member 6 includes an AC-DC converter. The step-down member 6 will be described in detail in "(3) Connection State."

[0043] The predetermined value of the second voltage V2 may be set so that the second voltage V2 is below a so-called dangerous voltage that may cause electric shock, and as an example, the predetermined value is 60 V. The predetermined value is preferably 48 V, and more preferably 42 V. When the wiring duct system 100 is installed in a wet area (such as a toilet or kitchen), the predetermined value is preferably 30 V.

[0044] Furthermore, in this embodiment, the value of the second voltage V2 is set so that the first voltage V1 is at least twice as high as the second voltage V2. Specifically, the first voltage V1 is an AC voltage with an effective value of 100 V, and the second voltage V2 is stepped down by the step-down member 6 to a DC voltage of 24 V.

[0045] This reduces the possibility of the user receiving an electric shock if part of the user's body accidentally touches the second conductor E2, for example, when the wiring duct system 100 is installed in a location within reach of the user's body.

[0046] 1 to 3, a load LD such as a lighting device is connected to the pair of second conductors E2 via a connection device 5. The connection device 5 will be described below.

[0047] As shown in FIG. 2 , the connection device 5 includes a duct connection portion 51 and a holding portion 52 .

[0048] As shown in Fig. 2, the duct connection portion 51 is formed in a columnar shape extending in the front-rear direction. The duct connection portion 51 has a pair of power receiving terminals T2. The pair of power receiving terminals T2 are electrically connected to the pair of second conductors E2, respectively, when the duct connection portion 51 is attached to the wiring duct 1. The pair of power receiving terminals T2 are provided at the upper end portion of the duct connection portion 51.

[0049] The pair of power receiving terminals T2 are metal pieces that protrude in opposite directions along the up-down direction when the connection device 5 is connected to the wiring duct 1.

[0050] The holding portion 52 is a housing that holds the duct connection portion 51. The holding portion 52 is formed, for example, so that its shape when viewed from the front-to-rear direction is, for example, oval. The load LD is electrically connected to the holding portion 52 from the front. Specifically, a power supply line extending from the load LD is connected to the holding portion 52. The power supply cable includes, for example, a pair of conductive wires, and the pair of conductive wires is electrically connected to a pair of power receiving terminals T2, respectively.

[0051] 1 and 3, the relay member 4 is a so-called joiner for connecting the wiring duct 1 to another wiring duct. The other wiring duct connected to the wiring duct 1 using the relay member 4 may be another wiring duct 1 or may be a wiring duct having a different configuration from the wiring duct 1.

[0052] 3, the relay member 4 includes a pair of relay terminals T3, a main body 40 that holds the pair of relay terminals T3, and a voltage-reducing member 6 that is connected to the pair of relay terminals T3. Note that the voltage-reducing member 6 may be provided separately from the relay member 4.

[0053] The details of the connection between the wiring duct 1 and another wiring duct 1 using the relay member 4 will be explained in "(3) Connection State".

[0054] (3) Connection State Hereinafter, a connection state when the wiring duct 1 (1A) and another wiring duct 1 (1B) are connected using the relay member 4 will be described.

[0055] As shown in FIG. 1, the relay member 4 connects the right end of the wiring duct 1A and the left end of the wiring duct 1B.

[0056] In a state in which the wiring duct 1A and the wiring duct 1B are connected by the relay member 4 (hereinafter referred to as the connected state), as shown in FIG. 3 , the pair of relay terminals T3 are respectively connected to the pair of first conductors E1 (E1A) of the wiring duct 1A. Also, in the connected state, the pair of relay terminals T3 are respectively connected to the pair of first conductors E1 (E1B) of the wiring duct 1B. Therefore, the pair of first conductors E1A and the pair of first conductors E1B are electrically connected to each other via the pair of relay terminals T3. In other words, the first conductors E1A of the wiring duct 1A are configured to be electrically connectable to the wiring duct 1B, which is another wiring duct. Here, "electrically connected" refers to a state in which current can flow in and out between the two connected objects.

[0057] As a result, the first voltage V1 is supplied to the pair of first conductors E1B from the pair of first conductors E1A via the pair of relay terminals T3.

[0058] As described above, the pair of relay terminals T3 are connected to the step-down member 6. That is, the first voltage V1 is supplied to the step-down member 6 from the pair of first conductors E1A via the pair of relay terminals T3.

[0059] Furthermore, in the connected state, the pair of second conductors E2 (E2A) of the wiring duct 1A are connected to the voltage-step-down member 6. Here, as described above, the voltage-step-down member 6 is a member including an AC-DC converter that steps down the first voltage V1, which is an AC voltage with an effective value of 100 V, to generate the second voltage V2, which is a DC voltage of 24 V. In other words, the voltage-step-down member 6 steps down the first voltage V1 supplied from the pair of first conductors E1A via the pair of relay terminals T3 to the second voltage V2, and supplies the second voltage V2 to the pair of second conductors E2A.

[0060] The second voltage V2 supplied to the pair of second conductors E2A is supplied to the load LD via a pair of power receiving terminals T2 of the connection device 5. That is, a current flows from the power source PS1 to the load LD via the pair of first conductors E1A and the pair of second conductors E2A.

[0061] Here, the pair of second conductors E2A is configured so as not to be electrically connectable to the wiring duct 1B. Specifically, in the connected state, the pair of second conductors E2A and the pair of second conductors E2B are configured so as not to be connectable. Also, in the connected state, a current is configured not to flow from the pair of first conductors E1B of the wiring duct 1B to the load LD via the pair of second conductors E2A.

[0062] (4) Advantages The advantages of the wiring duct system 100 of this embodiment when connected to other wiring ducts will be described below by comparing it with a wiring duct system 100C of a comparative example.

[0063] First, a wiring duct system 100C of a comparative example will be described. In the description of the wiring duct system 100C of the comparative example, elements common to those described in the wiring duct system 100 of the present embodiment will be assigned the same reference numerals and description thereof will be omitted.

[0064] As shown in Figure 4, the comparative wiring duct system 100C includes a wiring duct 1C, a power supply member 2C, a relay member 4C for connecting the wiring duct 1C to other wiring ducts, and a step-down member 6 connected to a power source PS1.

[0065] The wiring duct 1C includes a main body 10C, a pair of first conductors E10, and a pair of second conductors E20.

[0066] The power supply member 2C has a main body 20C, a pair of first connection terminals T11, and a pair of second connection terminals T12. A pair of electric wires connected to a power source PS1 is connected to the pair of first connection terminals T11, respectively. A pair of first conductors E10 is also connected to the pair of first connection terminals T11, respectively. The power source PS1 is connected to the pair of second connection terminals T12 via the step-down member 6. A pair of second conductors E20 is also connected to the pair of second connection terminals T12.

[0067] The relay board 4C includes a pair of first relay terminals T31, a pair of second relay terminals T32, and a main body 40C.

[0068] The following describes the connection state between the wiring duct 1C (1CA) and another wiring duct 1C (1CB) using the relay member 4C.

[0069] In a state in which the wiring duct 1CA and the wiring duct 1CB are connected by the relay member 4C (hereinafter referred to as the connected state), the pair of first relay terminals T31 are respectively connected to the pair of first conductors E10 (E10A) of the wiring duct 1CA. Also, in the connected state, the pair of first relay terminals T31 are respectively connected to the pair of first conductors E10 (E10B) of the wiring duct 1CB. That is, the pair of first conductors E10A and the pair of first conductors E10B are respectively connected via the pair of first relay terminals T31.

[0070] As a result, the first voltage V1 (an AC voltage with an effective value of 100 V) is supplied to the pair of first conductors E10B from the pair of first conductors E10A via the pair of first relay terminals T31.

[0071] In addition, in the connected state, the pair of second relay terminals T32 are respectively connected to the pair of second conductors E20 (E20A) of the wiring duct 1CA. In addition, in the connected state, the pair of second relay terminals T32 are respectively connected to the pair of second conductors E20 (E20B) of the wiring duct 1CB. That is, the pair of second conductors E20A and the pair of second conductors E20B are respectively connected via the pair of second relay terminals T32.

[0072] As a result, the second voltage V2 (a DC voltage of 24 V) is supplied to the pair of second conductors E20B from the pair of second conductors E20A via the pair of second relay terminals T32.

[0073] As described above, in the comparative wiring duct system 100C, power transmission between wiring duct 1C and other wiring ducts 1C is carried out using a first voltage V1, which is an AC voltage with an effective value of 100 V, and a second voltage V2, which is a DC voltage of 24 V.

[0074] The lower the voltage used for transmission, the greater the power loss during transmission. This is because, when transmitting the same amount of power, the lower the voltage, the greater the current. In particular, the longer the transmission path, the greater the impact of power loss.

[0075] On the other hand, in the wiring duct system 100 of this embodiment, as described in "(3) Connection State," power transmission between one wiring duct 1 and another wiring duct 1 is performed only by the first voltage V1, which is an AC voltage of 100 V. The second voltage V2, which is a DC voltage of 24 V, is supplied to the load LD only within one wiring duct 1 and is not used to transmit power to other wiring ducts 1.

[0076] Therefore, the wiring duct system 100 of this embodiment can reduce power loss during power transmission from one wiring duct 1 to another wiring duct 1. In particular, when two or more relay members 4 are used to connect three or more wiring ducts 1 on the construction surface S1 of a facility, the effect of reducing power loss during power transmission becomes more pronounced.

[0077] (5) Modifications The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved.

[0078] Modifications of the above embodiment are listed below. The modifications described below can be applied in appropriate combinations.

[0079] In the above embodiment, the first voltage V1 supplied from the power source PS1 to the pair of first conductors E1 is an AC voltage, but the first voltage V1 may be a DC voltage. That is, the first voltage V1 and the second voltage V2 may be DC voltages. The first voltage V1, which is a DC voltage, is, for example, a DC voltage of 400 V. In this case, the voltage-step-down member 6 may include a DC-DC converter. Also, in this case, for example, an AC-DC converter may be provided between the power source PS1 and the power supply member 2. Also, the power source that supplies the first voltage V1 to the pair of first conductors E1 may be a DC power source such as a battery.

[0080] (6) Summary As described above, the wiring duct (1) according to the first aspect includes a first conductor (E1), a second conductor (E2), a main body (10), and an insulating member (3). The first conductor (E1) is supplied with a first voltage (V1) from a power source (PS1). The second conductor (E2) supplies a second voltage (V2) lower than the first voltage (V1) to a load (LD). The main body (10) holds the first conductor (E1) and the second conductor (E2). The first conductor (E1) is held in the main body (10) while covered with the insulating member (3). The second conductor (E2) is held in the main body (10) while at least a portion of it is exposed. The second voltage (V2) is a DC voltage equal to or lower than a predetermined value.

[0081] According to this aspect, the degree of freedom in the installation location of the wiring duct (1) can be improved.

[0082] In the wiring duct (1) according to the second aspect, the predetermined value is 60V in the first aspect.

[0083] According to this aspect, the possibility of the user receiving an electric shock when part of the user's body accidentally touches the second conductor (E2) can be reduced, thereby improving safety.

[0084] In the wiring duct (1) according to the third aspect, in the first or second aspect, the first conductor (E1) is configured to be electrically connectable to another wiring duct, and the second conductor (E2) is configured to be electrically incapable of being connected to another wiring duct.

[0085] According to this aspect, it is possible to reduce power loss when transmitting power from the wiring duct (1) to another wiring duct.

[0086] In the wiring duct (1) according to the fourth aspect, in the first to third aspects, the main body (10) has an elongated shape extending in one direction. The first conductor (E1) and the second conductor (E2) are held in the main body (10) along the one direction. The length (L1) of the main body (10) along the one direction is 6 m or less.

[0087] According to this aspect, the workability of the installation work of the wiring duct (1) can be improved.

[0088] In the wiring duct (1) according to the fifth aspect, in the first to fourth aspects, the first voltage (V1) is at least twice the second voltage (V2).

[0089] According to this aspect, by making the first voltage (V1) at least twice the second voltage (V2), it is possible to reduce power loss during power transmission from a wiring duct (1) to another wiring duct (1) at the first voltage (V1).

[0090] In the wiring duct (1) according to the sixth aspect, in the first to fifth aspects, the first voltage (V1) is an AC voltage.

[0091] According to this aspect, it becomes easy to step down the voltage from the first voltage (V1) to the second voltage (V2).

[0092] In the wiring duct (1) according to the seventh aspect, in the first to fifth aspects, the first voltage (V1) is a DC voltage.

[0093] According to this aspect, it is possible to reduce power loss during power transmission using the first voltage (V1).

[0094] The wiring duct system (100) according to the eighth aspect includes a wiring duct (1) according to any one of the first to seventh aspects, another wiring duct electrically connected to the first conductor (E1), and a power supply member (2) that supplies a first voltage (V1) from a power source (PS1) to the first conductor (E1).

[0095] According to this aspect, it is possible to improve the degree of freedom in the installation location of the wiring duct system (100), and it is also possible to reduce the power loss when transmitting power from the wiring duct (1) to another wiring duct.

[0096] The wiring duct system (100) according to the ninth aspect is the eighth aspect, further comprising a step-down member (6) that steps down the first voltage (V1) to a second voltage (V2) and supplies the second voltage (V2) to the second conductor (E2).

[0097] According to this aspect, it is possible to improve the degree of freedom in the installation location of the wiring duct system (100), and it is also possible to reduce the power loss when transmitting power from the wiring duct (1) to another wiring duct.

[0098] The second to seventh aspects are not essential components of the wiring duct 1 and can be omitted as appropriate. The ninth aspect is not essential components of the wiring duct system 100 and can be omitted as appropriate.

[0099] REFERENCE SIGNS LIST 1 Wiring duct 2 Power supply member 3 Insulating member 6 Voltage step-down member 10 Main body 100 Wiring duct system E1 First conductor E2 Second conductor L1 Length LD Load PS1 Power source V1 First voltage V2 Second voltage

Claims

1. a first conductor to which a first voltage is supplied from a power source; a second conductor for supplying a second voltage to a load, the second voltage being lower than the first voltage; a body that holds the first conductor and the second conductor; an insulating member, the first conductor is held by the main body while being covered by the insulating member; the second conductor is held by the body with at least a portion thereof exposed; The second voltage is a DC voltage equal to or lower than a predetermined value. Wiring duct.

2. The predetermined value is 60V. The wiring duct according to claim 1 .

3. the first conductor is configured to be electrically connectable to another wiring duct, The second conductor is configured so as not to be electrically connectable to the other wiring duct. The wiring duct according to claim 1 or 2.

4. The main body has an elongated shape extending in one direction, the first conductor and the second conductor are held by the main body along the one direction, The length of the main body along the one direction is 6 m or less. The wiring duct according to claim 1 or 2.

5. The first voltage is at least twice the second voltage. The wiring duct according to claim 1 or 2.

6. the first voltage is an AC voltage; The wiring duct according to claim 1 or 2.

7. the first voltage is a DC voltage; The wiring duct according to claim 1 or 2.

8. The wiring duct according to claim 1 or 2; another wiring duct electrically connected to the first conductor; a power supply member for supplying the first voltage from the power source to the first conductor, Wiring duct system.

9. a step-down member that steps down the first voltage to the second voltage and supplies the second voltage to the second conductor; The wiring duct system according to claim 8.