Wiring duct and wiring duct system

Abstract

The present invention solves the problem of improving the degree of freedom in an installation site. A wiring duct (1) is provided with a first conductor (E1), a second conductor (E2), a main body (10), and an insulating member (3). The first conductor (E1) is configured to be supplied with a first voltage from a power source. The second conductor (E2) supplies a second voltage lower than the first voltage to the load. The main body (10) holds a first conductor (E1) and a second conductor (E2). The first conductor (E1) is held by the main body (10) in a state in which the first conductor (E1) is covered by the insulating member (3). The second conductor (E2) is held by the main body (10) in a state in which the second conductor (E2) is at least partially exposed. The second voltage is a DC voltage lower than or equal to a predetermined value.

Description

Technical Field

[0001] This disclosure generally relates to wiring ducts and wiring duct systems. Background Technology

[0002] Patent document 1 discloses a wiring trough that includes wires for conducting electricity and wires for communication transmission.

[0003] In a wiring duct as disclosed in Patent Document 1, the power conduction wire, which is supplied with a higher voltage than the wire used for communication transmission, is exposed. Therefore, there is a problem that the wiring duct cannot be installed in a location where there is a possibility that a part of a user's body (e.g., hand) may come into contact with the power conduction wire. Existing technical documents Patent documents

[0004] Patent Document 1: Japanese Patent Application Publication No. 2012-009258 Summary of the Invention

[0005] In view of the foregoing, the purpose of this disclosure is to provide a wiring duct and wiring duct system configured to provide increased degrees of freedom in the installation site.

[0006] A wiring duct of one aspect of this disclosure includes: a first conductor configured to be supplied with a first voltage from a power source; a second conductor configured to supply a second voltage to a load, the second voltage being lower than the first voltage; a body for holding the first conductor and the second conductor; and an insulating member. The first conductor is held by the body in a state where the first conductor is covered by the insulating member. The second conductor is held by the body in a state where the second conductor is at least partially exposed. The second voltage is a DC voltage lower than or equal to a predetermined value.

[0007] A wiring trunking system according to one aspect of this disclosure includes: the wiring trunking; other wiring trunking configured to be electrically connected to the first conductor; and a power supply member configured to supply the first voltage from the power source to the first conductor. Attached Figure Description

[0008] Figure 1 This is an external view of a wiring duct system according to an embodiment of the present disclosure; Figure 2 This is a cross-sectional view of the wiring ducts included in the wiring duct system; Figure 3 This is a schematic wiring diagram of the wiring duct system; and Figure 4 This is a schematic wiring diagram of a comparative example wiring duct system. Detailed Implementation

[0009] The wiring trough 1 according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. Note that the drawings described in the following embodiments are schematic diagrams, and the size and thickness ratios of the components in the drawings do not necessarily reflect the actual size ratios. Furthermore, the "wiring trough" described below as the wiring trough 1 is also referred to as a power supply track. Additionally, the "wiring trough" is also referred to as a wiring track trough. Furthermore, the embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to these embodiments and modifications. Various modifications can be made to the present disclosure without departing from its scope, even without including these embodiments and modifications, depending on the design, etc. Furthermore, the embodiments (including modifications) described below can be appropriately combined to implement them.

[0010] (1) Summary First, refer to Figures 1 to 3 The outline of the wiring trunking 1 and the wiring trunking system 100 according to this embodiment is described.

[0011] like Figure 1 As shown, the wiring duct system 100 is installed on the construction surface S1 of the facility. Note that the wiring duct system 100 is preferably housed in a connecting member and is preferably installed on the construction surface S1 via the connecting member, as illustrated in the figure. Figure 1 Omitted in .

[0012] The wiring system 100 includes wiring duct 1 (1A), other wiring ducts (wiring duct 1 (1B)), and a power supply PS1 (see [link]). Figure 3 ) The power supply component 2 that supplies voltage to the wiring duct 1.

[0013] The wiring duct 1 is used to supply power to the loads LD in the facility. As used herein, "facility" can be residential or non-residential. Examples of residential facilities include detached houses and multi-family homes. Examples of non-residential facilities include office buildings, commercial facilities, guest rooms, mixed-use facilities, warehouses, and factories. Furthermore, loads LD are, for example, lighting fixtures, surveillance cameras, motion sensors, or reel-type power outlets.

[0014] like Figure 2 As shown, each wiring trough 1 includes a first conductor E1, a second conductor E2, a main body 10, and an insulating component 3.

[0015] The first conductor E1 is connected to power supply PS1 (see...) Figure 3 The first voltage V1 is supplied.

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

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

[0018] The first conductor E1 is held by the main body 10 in a state where the first conductor E1 is covered by the insulating member 3.

[0019] The second conductor E2 is held by the body 10 in a state where the second conductor E2 is at least partially exposed.

[0020] The second voltage V2 is a DC voltage that is lower than the predetermined value.

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

[0022] Note that in the following description, when the wiring duct system 100 is installed on a wall surface, for example, the construction surface S1, the direction orthogonal to the wall surface is defined as the "front / back direction," and the normal direction of the wall surface is defined as the "front side." Furthermore, the long side direction of the wiring duct 1 is defined as the "left / right direction," and the direction orthogonal to the "front / back direction" and the "left / right direction" is defined as the "up / down direction." Specifically, in Figure 1 and Figure 2 In this drawing, the positive direction of the X-axis is defined as "front," the positive direction of the Y-axis as "left," and the positive direction of the Z-axis as "top." Note that the arrows indicating the X-axis, Y-axis, and Z-axis directions in the drawing are for illustrative purposes only and are not explicitly shown. Furthermore, these directions do not limit the installation state or location of the wiring duct system 100.

[0023] Furthermore, in this disclosure, "orthogonal" direction does not strictly mean only the 90-degree direction, but also includes (one or more) directions that can be considered the same as the 90-degree direction according to common technical means in the art, as long as this embodiment provides the desired effect.

[0024] (2) Configuration Referring to the attached drawings, the configuration of the wiring duct system 100 will be described in detail below.

[0025] like Figure 1 and Figure 3As shown, the wiring duct system 100 includes wiring duct 1 (1A), other wiring ducts (wiring duct 1 (1B)), and a power supply component 2. Furthermore, the wiring duct system 100 also includes a relay component 4 for connecting wiring duct 1 (1A) to the other wiring ducts (wiring duct 1 (1B)). Note that the other wiring ducts connected to wiring duct 1 can be other wiring duct 1 or wiring ducts with a different configuration than wiring duct 1.

[0026] like Figure 2 As shown, the wiring trough 1 includes a main body 10, a pair of first conductors E1, a pair of second conductors E2, and a pair of insulating components 3.

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

[0028] In this embodiment, the length L1 of the main body 10 in the left / right direction is, for example, 3m. Note that the length L1 is not limited to 3m, but can be, for example, 1m, 1.5m, or 2m. Furthermore, the length L1 can be an integer multiple of 1m, 1.5m, 2m, or 3m. Note that the length L1 is preferably shorter than or equal to 6m. Here, the wiring trunking system 100 may include multiple types of wiring trunking 1 that differ from each other in length L1.

[0029] like Figure 2 As shown, the main body 10 has wall portions 11 and 12 facing each other in the up / down direction and wall portions 13 and 14 facing each other in the front / back direction. The wall portion 13 mechanically connects the rear ends of the wall portions 11 and 12 to each other. In other words, the main body 10 has a U-shaped cross-section formed by the wall portion 13 and the wall portions 11 and 12 that project forward from both ends of the wall portion 13.

[0030] The wall portion 14 of the main body 10 has an opening 15 extending in the left / right direction. At any position of the opening 15 in the left / right direction, the load LD can be connected via the connecting device 5, which will be described later.

[0031] like Figure 2 and Figure 3 As shown, the main body 10 holds a pair of first conductors E1 and a pair of second conductors E2 arranged in 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 in the left / right direction.

[0032] like Figure 2As shown, one of the pair of first conductors E1, E11, is held by the wall portion 11. Furthermore, the other of the pair of first conductors E1, E12, is held by the wall portion 12. Specifically, in the pair of first conductors E1, one first conductor E11 is held by the front end of the protrusion 110 of the wall portion 11, and the other first conductor E12 is held by the front end of the protrusion 120 of the wall portion 12.

[0033] Furthermore, the pair of first conductors E1 are held one-to-one by protrusions 110 and 120 in a state where the pair of first conductors E1 are covered by a pair of insulating members 3.

[0034] A pair of insulating members 3 are formed of an insulator such as synthetic resin. The pair of insulating members 3 are integrated one-to-one with the protrusions 110 and 120, for example. Note that the pair of insulating members 3 can be components separate from the respective protrusions 110 and 120.

[0035] like Figure 3 As shown, a first voltage V1 is supplied from power source PS1 to a pair of first conductors E1 via feeder component 2. In this embodiment, it is assumed that 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. Note that power source PS1 can be a single-phase three-wire commercial AC power source, or it can be a three-phase three-wire commercial AC power source. Furthermore, the first voltage V1 is an AC voltage with a power frequency of 50Hz or 60Hz and an effective value of 100V. Note that the first voltage V1 can also be an AC voltage with an effective value of 200V.

[0036] Here, the pair of first conductors E1 are covered by a pair of insulating members 3, so, for example, even if a user of the wiring duct system 100 accidentally inserts a part of their body (e.g., a finger) into the body 10 through the opening 15, the likelihood of that part of the user's body coming into direct contact with (one or more) first conductors E1 is low. Therefore, the wiring duct system 100 can be installed on construction surfaces S1, such as walls or floors, where there is a possibility of contact between the user's body and (one or more) first conductors E1, except for construction surfaces S1 that the user's body cannot access (e.g., ceilings). Furthermore, the wiring duct system 100 can also be installed in locations where the user's body can access it (e.g., furniture and fixtures such as tables).

[0037] The power supply component 2 is a so-called feed cap, and as... Figure 1 As shown, it is connected to the end of the body 10 in the left / right direction (e.g., the left end).

[0038] like Figure 2 As shown, the power supply component 2 includes a main body 20 and a pair of connection terminals T1 held by the main body 20.

[0039] A pair of wires connected to the power supply PS1 are connected one-to-one to a pair of connection terminals T1. Furthermore, a pair of first conductors E1 are connected one-to-one to the pair of connection terminals T1. Therefore, a first voltage V1 is supplied from the power supply PS1 to the pair of first conductors E1 via the power supply component 2. In other words, the power supply component 2 supplies the first voltage V1 from the power supply PS1 to the pair of first conductors E1.

[0040] Next, a pair of second conductors E2 will be described. For example... Figure 2 As shown, one of the pair of second conductors E2, E21, is held by the wall portion 11. Furthermore, the other second conductor E22 is held by the wall portion 12. Specifically, in the pair of second conductors E2, one second conductor E21 is held by the front end of the protrusion 111 of the wall portion 11, and the other second conductor E22 is held by the front end of the protrusion 121 of the wall portion 12. Here, the protrusions 111 and 121 are respectively positioned 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] In addition, such as Figure 2 As shown, a pair of second conductors E2 are held one-to-one by protrusions 111 and 121 with at least partial exposure of the second conductors E2. Specifically, the second conductors E2 held by protrusion 111 are exposed downwards. In addition, the second conductors E2 held by protrusion 121 are exposed upwards.

[0042] A pair of second conductors E2 supplies a second voltage V2 to the load LD. This is achieved by utilizing a step-down component 6, described later (see [link]). Figure 3 The first voltage V1 is stepped down to generate a second voltage V2. 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 lower than or equal to a predetermined value. In other words, the step-down component 6 includes an AC-DC converter. The step-down component 6 will be described in detail in “(3) Connection State”.

[0043] The predetermined value of the second voltage V2 is set such that the second voltage V2 is below the so-called dangerous voltage that could cause electric shock. As an example, the predetermined value is 60V. Furthermore, the predetermined value is preferably 48V, and more preferably 42V. In addition, when the wiring duct system 100 is installed in a place where water is used (toilet, kitchen, etc.), the predetermined value is preferably 30V.

[0044] Furthermore, in this embodiment, the value of the second voltage V2 is set such that the first voltage V1 is twice or more than twice the second voltage V2. Specifically, the first voltage V1, which is an AC voltage with an effective value of 100V, is stepped down to a second voltage V2 with a DC voltage of 24V by using the step-down member 6.

[0045] Therefore, for example, it can reduce the likelihood of a user being electrocuted in the event that part of the user's body accidentally comes into contact with (one or more) second conductors E2 when the wiring duct system 100 is installed in a location accessible to the user's body.

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

[0047] like Figure 2 As shown, the connecting device 5 includes a slot connector 51 and a retaining part 52.

[0048] like Figure 2 As shown, the slot connector 51 has a cylindrical shape extending in the front / back direction. The slot connector 51 includes a pair of power receiving terminals T2. When the slot connector 51 is attached to the wiring slot 1, the pair of power receiving terminals T2 are electrically connected one-to-one to a pair of second conductors E2. The pair of power receiving terminals T2 are disposed at the upper end of the slot connector 51.

[0049] A pair of power receiving terminals T2 are metal pieces that protrude in opposite directions along the up / down direction when the connecting device 5 is connected to the wiring trough 1.

[0050] The retaining portion 52 is a housing for retaining the slot connector 51. The retaining portion 52, when viewed, for example, in a front / rear direction, has an elliptical shape. Furthermore, the load LD is electrically connected to the retaining portion 52 from the front. Specifically, a feed wire extending from the load LD is connected to the retaining portion 52. The feed wire, for example, comprises a pair of conductive wires, and this pair of conductive wires is electrically connected one-to-one to a pair of power receiving terminals T2.

[0051] like Figure 1 and Figure 3 As shown, the relay component 4 is a so-called connector used to connect the wiring duct 1 to other wiring ducts. Note that the other wiring duct to be connected to the wiring duct 1 by using the relay component 4 can be another wiring duct 1, or it can be a wiring duct with a different configuration than the wiring duct 1.

[0052] like Figure 3 As shown, the relay component 4 includes a pair of relay terminals T3, a body 40 for holding the pair of relay terminals T3, and a step-down component 6 connected to the pair of relay terminals T3. Note that the step-down component 6 may be a component separate from the relay component 4.

[0053] The details of connecting wiring duct 1 to other wiring duct 1 by using relay component 4 will be described in “(3) Connection Status”.

[0054] (3) Connection status The connection state of the wiring duct 1 (1A) and other wiring duct 1 (1B) connected to each other by means of relay component 4 will be described below.

[0055] like Figure 1 As shown, the relay component 4 connects the right end of the wiring duct 1A and the left end of the wiring duct 1B to each other.

[0056] When wiring duct 1A and wiring duct 1B are connected to each other via relay component 4 (hereinafter referred to as the connected state), as follows: Figure 3 As shown, a pair of relay terminals T3 are connected one-to-one to a pair of first conductors E1 (E1A) of wiring duct 1A. Furthermore, in the connected state, a pair of relay terminals T3 are also connected one-to-one to a pair of first conductors E1 (E1B) of wiring duct 1B. Therefore, a pair of first conductors E1A is electrically connected to a pair of first conductors E1B via a pair of relay terminals T3. That is, the first conductors E1A of wiring duct 1A are configured to be electrically connected to wiring duct 1B, which is another wiring duct. Note that, as used herein, "electrical connection" refers to the state of current flow in and out between two objects capable of being connected.

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

[0058] Furthermore, as described above, the step-down component 6 is connected to a pair of relay terminals T3. That is, the step-down component 6 is supplied with a first voltage V1 from a pair of first conductors E1A via a pair of relay terminals T3.

[0059] Furthermore, in the connected state, a pair of second conductors E2 (E2A) of the wiring duct 1A are connected to the step-down component 6. Here, as described above, the step-down component 6 is a component including an AC-DC converter that steps down a first voltage V1, which is an AC voltage with an effective value of 100V, to generate a second voltage V2, which is a DC voltage of 24V. That is, the step-down component 6 steps down the first voltage V1 supplied from a pair of first conductors E1A via a 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 a pair of second conductors E2A is supplied to the load LD via a pair of power receiving terminals T2 of the connecting device 5. That is, current flows from the power supply PS1 to the load LD via a pair of first conductors E1A and a pair of second conductors E2A.

[0061] Here, the pair of second conductors E2A are configured not to be electrically connected to the wiring duct 1B. Specifically, the pair of second conductors E2A and the pair of second conductors E2B are configured not to be connected to each other in the connected state. Furthermore, in the connected state, no current flows 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 the wiring duct is connected to other wiring ducts will be described below in comparison with the wiring duct system 100C of the comparative example.

[0063] First, the comparative example wiring duct system 100C will be described. Note that in the description of the comparative example wiring duct system 100C, elements common to the wiring duct system 100 of this embodiment are indicated by the same reference numerals, and their descriptions will be omitted.

[0064] like Figure 4 As shown, the comparative example wiring system 100C includes a wiring trough 1C, a power supply component 2C, a relay component 4C for connecting the wiring trough 1C to other wiring troughs, and a step-down component 6 connected to the power supply 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 component 2C includes a main body 20C, a pair of first connection terminals T11, and a pair of second connection terminals T12. A pair of wires connected to the power supply PS1 are connected one-to-one to the pair of first connection terminals T11. Additionally, a pair of first conductors E10 are connected one-to-one to the pair of first connection terminals T11. The power supply PS1 is connected to the pair of second connection terminals T12 via a step-down component 6. Furthermore, a pair of second conductors E20 are connected to the pair of second connection terminals T12.

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

[0068] The connection status from the wiring duct 1C (1CA) of the relay component 4C to other wiring ducts 1C (1CB) will be described below.

[0069] In the state where wiring duct 1CA and wiring duct 1CB are connected to each other via relay member 4C (hereinafter referred to as the connected state), a pair of first relay terminals T31 are connected one-to-one to a pair of first conductors E10 (E10A) of wiring duct 1CA. Furthermore, in the connected state, a pair of first relay terminals T31 are also connected one-to-one to a pair of first conductors E10 (E10B) of wiring duct 1CB. That is, a pair of first conductors E10A are connected one-to-one to a pair of first conductors E10B via a pair of first relay terminals T31.

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

[0071] Furthermore, in the connected state, a pair of second relay terminals T32 are connected one-to-one to a pair of second conductors E20 (E20A) of the wiring duct 1CA. Also in the connected state, a pair of second relay terminals T32 are connected one-to-one to a pair of second conductors E20 (E20B) of the wiring duct 1CB. That is, a pair of second conductors E20A are connected to a pair of second conductors E20B via a pair of second relay terminals T32.

[0072] Therefore, a pair of second conductors E20B are supplied with a second voltage V2 (24V DC voltage) from a pair of second conductors E20A via a pair of second relay terminals T32.

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

[0074] Here, power loss during power transmission increases as the voltage used for power transmission decreases. This is because, when transmitting the same amount of power, a lower voltage results in a higher current. In particular, the longer the power transmission path, the more susceptible the power transmission is to power loss.

[0075] In contrast, as described in "(3) Connection State", in the wiring trunking system 100 of this embodiment, power transmission between wiring trunking 1 and other wiring trunking 1 occurs only at a first voltage V1, which is an AC voltage of 100V. A second voltage V2, which is a DC voltage of 24V, is supplied to the load LD only in one wiring trunking 1, but is not used for power transmission to other wiring trunking 1.

[0076] Therefore, the wiring trunking system 100 of this embodiment enables the reduction of power loss during power transmission from wiring trunking 1 to other wiring trunking 1. In particular, the effect of reducing power loss during power transmission is more significant when three or more wiring trunking 1 are connected on the construction surface S1 of the facility, etc., by using two or more relay members 4.

[0077] (5) Variations The above embodiments are merely examples of various embodiments of this disclosure. Various modifications can be made to the above embodiments based on design, etc., as long as the purpose of this disclosure is achieved.

[0078] The following are variations of the above embodiments. Any variations described below can be appropriately combined.

[0079] In the above embodiment, the first voltage V1 supplied from the power supply PS1 to the pair of first conductors E1 is an AC voltage, but the first voltage V1 can also be a DC voltage. That is, both the first voltage V1 and the second voltage V2 can be DC voltages. The first voltage V1, as a DC voltage, is, for example, a DC voltage of 400V. In this case, the step-down component 6 includes at least a DC-DC converter. Furthermore, in this case, an AC-DC converter is provided, for example, at least between the power supply PS1 and the power supply component 2. Moreover, the power source supplying the first voltage V1 to the pair of first conductors E1 can be a DC power source such as a battery.

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

[0081] This aspect allows for greater freedom in the installation location of the wiring duct (1).

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

[0083] This aspect makes it possible to reduce the likelihood of a user being shocked in the event that part of the user's body comes into accidental contact with the second conductor (E2), thereby increasing safety.

[0084] In the wiring duct (1) of the third aspect referring to the first or second aspect, a first conductor (E1) is configured to be electrically connected to other wiring ducts. A second conductor (E2) is configured not to be electrically connected to other wiring ducts.

[0085] This aspect enables the reduction of power loss during power transmission from the wiring duct (1) to other wiring ducts.

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

[0087] This aspect enables the efficiency of installing the wiring duct (1).

[0088] In the wiring duct (1) of the fifth aspect with reference to the first aspect to the fourth aspect, the first voltage (V1) is twice or more than twice the second voltage (V2).

[0089] In this respect, the first voltage (V1) is twice or more than twice the second voltage (V2), which makes it possible to reduce power loss during power transmission at the first voltage (V1) from the wiring duct (1) to other wiring ducts (1).

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

[0091] Based on this, the first voltage (V1) can be easily reduced to the second voltage (V2).

[0092] In the wiring trough (1) of the seventh aspect with reference to the first to fifth aspects, the first voltage (V1) is a DC voltage.

[0093] This aspect enables the reduction of power loss during power transmission at the first voltage (V1).

[0094] The eighth aspect of the wiring system (100) includes wiring ducts (1) from the first aspect to the seventh aspect, other wiring ducts configured to be electrically connected to the first conductor (E1), and a power supply member (2) configured to supply a first voltage (V1) from a power source (PS1) to the first conductor (E1).

[0095] This aspect allows for greater flexibility in the installation location of the wiring duct system (100). Furthermore, this aspect allows for reduced power loss during power transmission from the wiring duct (1) to other wiring ducts.

[0096] The wiring duct system (100) of the ninth aspect of the eighth aspect also includes a step-down member (6) configured to step down the first voltage (V1) to a second voltage (V2) and supply the second voltage (V2) to the second conductor (E2).

[0097] This aspect allows for greater flexibility in the installation location of the wiring duct system (100). Furthermore, this aspect allows for reduced power loss during power transmission from the wiring duct (1) to other wiring ducts.

[0098] Note that aspects two through seven are not required for the wiring duct (1) and can therefore be omitted. Furthermore, aspect nine is not required for the wiring duct system (100) and can therefore be omitted. Explanation of reference numerals in the attached figures

[0099] 1 wiring duct 2 power supply components 3 Insulation Components 6 pressure-reducing components 10 main bodies 100 wiring trunking system E1 First Conductor E2 Second Conductor L1 length LD load PS1 power supply V1 First Voltage V2 Second Voltage

Claims

1. A wiring duct comprising: a first conductor configured to be supplied with a first voltage from a power supply; a second conductor configured to supply a second voltage to a load, the second voltage being lower than the first voltage; a main body for holding the first conductor and the second conductor; and an insulating member, wherein the first conductor is held by the main body in a state in which the first conductor is covered by the insulating member, the second conductor is held by the main body in a state in which the second conductor is at least partially exposed, the second voltage is a direct current voltage lower than or equal to a predetermined value.

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

3. The wiring duct according to claim 1 or 2, wherein the first conductor is configured to be electrically connectable to another wiring duct, and the second conductor is configured to be electrically unconnectable to the other wiring duct.

4. The wiring duct according to any one of claims 1 to 3, wherein the main body has an elongated shape extending in one direction, the first conductor and the second conductor are held by the main body in the one direction, and a length of the main body in the one direction is less than or equal to 6 m.

5. The wiring duct according to any one of claims 1 to 4, wherein the first voltage is twice or more than twice the second voltage.

6. The wiring duct according to any one of claims 1 to 5, wherein the first voltage is an alternating current voltage.

7. The wiring duct according to any one of claims 1 to 5, wherein the first voltage is a direct current voltage.

8. A wiring duct system comprising: the wiring duct according to any one of claims 1 to 7; another wiring duct configured to be electrically connected to the first conductor; and a feeding member configured to supply the first voltage from the power supply to the first conductor.

9. The wiring duct system according to claim 8, further comprising a step-down member configured to step down the first voltage to the second voltage and supply the second voltage to the second conductor. ​ ​

Images