CN116670947A - DC pipe system, DC pipe, power supply member and power supply system - Google Patents

Abstract

It is an object of the present disclosure to reduce the possibility of applying a DC voltage to a first conductive strip and a second conductive strip with wrong polarity. The power supply member (4) has a first contact (44A) and a second contact that can be connected to a first conductive strip (32A) and a first conductive strip (32B) of the DC duct (3), respectively, and the power supply member (4) is connected to one end of the DC duct (3) in the longitudinal direction. The other end of the DC pipe (3) in the length direction is provided with a connection preventing structure that prevents the power feeding member (4) from being connected to the other end of the DC pipe (3) by being in contact with at least a part of the power feeding member (4). The power supply member (4) includes a first terminal electrically connected to the first contact (44A) and to which a positive-side wire of the DC power supply portion is connectable, and a second terminal electrically connected to the second contact (44B) and to which a negative-side wire of the DC power supply portion is connectable. The power supply member main body (42) is provided with a polarity display portion that displays polarities of the first terminal and the second terminal.

Description

DC pipe system, DC pipe, power supply member and power supply system

Technical Field

The present disclosure relates to a DC piping system, a DC piping, a power supply member, and a power supply system. More specifically, the present disclosure relates to a DC piping system, a DC piping, a power supply member, and a power supply system for supplying DC power to a power receiving device attached to the DC piping.

Background

PTL 1 discloses a wiring duct system including a wiring duct (DC duct) accommodating a pair of conductors (a first conductive bar and a second conductive bar) for supplying AC power. The wiring duct system provides AC power to electrical devices connected to the wiring duct.

In recent years, it has been required to supply DC power to an electric device through a wiring duct, in which case it is necessary to apply a DC voltage having a correct polarity to a pair of conductors provided in the wiring duct.

[ citation list ]

[ patent literature ]

PTL 1 japanese patent application laid-open No. 2010-200499.

Disclosure of Invention

It is an object of the present disclosure to provide a DC piping system, a DC piping, a power supply member and a power supply system that reduce the possibility of applying a DC voltage to a first and a second conductive strip with wrong polarity.

A DC plumbing system according to one aspect of the present disclosure includes a DC conduit and a power supply member. The DC pipe holds a positive-side first conductive bar and a negative-side second conductive bar to which a DC voltage is to be applied. The powered device that receives the DC voltage supply via the first and second conductive strips may be connected to the DC pipe at any location in the length direction of the first and second conductive strips. The power supply member has a first contact connectable to the first conductive bar and a second contact connectable to the second conductive bar, and is connected to one end of the DC pipe in the length direction. The other end of the DC pipe in the length direction is provided with a connection preventing structure that prevents the power supply member from being connected to the other end of the DC pipe by being in contact with at least a portion of the power supply member. The power feeding member has a first terminal, a second terminal, and a power feeding member main body holding the first terminal and the second terminal. The first terminal is electrically connected to the first contact, and an electric wire on the positive side of the DC power supply portion outputting the DC voltage may be connected to the first terminal. The second terminal is electrically connected to the second contact and is connectable to an electrical wire on the negative side of the DC power supply section. The power supply member body is provided with a polarity display portion that displays polarities of the first terminal and the second terminal.

A DC plumbing system according to one aspect of the present disclosure includes a DC conduit and a power supply member. The DC pipe holds a positive-side first conductive bar and a negative-side second conductive bar to which a DC voltage is to be applied. The powered device that receives the DC voltage supply via the first and second conductive strips may be connected to the DC pipe at any location in the length direction of the first and second conductive strips. The power supply member has a first contact connectable to the first conductive bar and a second contact connectable to the second conductive bar, and is connected to one end of the DC pipe in the length direction. The other end of the DC pipe in the length direction is provided with a connection preventing structure that prevents the power supply member from being connected to the other end of the DC pipe by being in contact with at least a portion of the power supply member. The power supply member has a first connector. A second connector provided on a wire from a DC power supply portion outputting a DC voltage may be connected to the first connector. When the second connector is connected to the first connector, a DC voltage is applied from the DC power supply portion to the first contact and the second contact.

The DC pipe according to an aspect of the present disclosure is a DC pipe included in the above DC pipe system.

The power supply member according to one aspect of the present disclosure is a power supply member included in the above-described DC piping system.

A power supply system according to one aspect of the present disclosure includes the DC piping system and the DC power supply section described above. The DC power supply portion converts an AC voltage input from an AC power supply into a DC voltage, and outputs the DC voltage to the power supply member.

Drawings

Fig. 1 is a perspective view showing a state before a first power supply member is connected to a first end of a DC pipe included in the DC pipe system according to the first embodiment.

Fig. 2A is a side view of the same DC pipe from the left side. Fig. 2B is a side view of the same DC pipe as seen from the right side.

Fig. 3 is a rear view showing a state before the power supply member is connected to the same DC pipe.

Fig. 4 is a perspective view showing a state before the second power supply member is connected to the second end of the same DC pipe.

Fig. 5 is a perspective view showing a state in which the second power supply member is to be connected to the first end of the same DC pipe.

Fig. 6 is an exploded perspective view of the main part of the same DC piping system.

Fig. 7 is a schematic perspective view showing a state before connecting the electric wires of the DC power supply section to the same DC piping system.

Fig. 8 is an exploded perspective view of the main part of the same DC piping system.

Fig. 9 is a perspective view of a table with the same DC plumbing system.

Fig. 10A is a cross-sectional view from above the same DC pipe and power feeding member. Fig. 10B is an enlarged view of a portion C1 in fig. 10A.

Fig. 11 is a schematic diagram of a process for connecting an adapter to the same DC piping system.

Fig. 12 is a schematic diagram of a process for connecting an adapter to the same DC piping system.

Fig. 13 is a side cross-sectional view of the same DC piping system and adapter.

Fig. 14 is a block diagram showing a configuration example of a system for supplying power to a plurality of electric devices using the same DC piping system.

Fig. 15 is a perspective view of a table including a DC piping system according to a first modification of the first embodiment.

Fig. 16 is a schematic circuit block diagram of a DC piping system according to a second modification of the first embodiment.

Fig. 17 is a front view of the same DC piping system.

Fig. 18 is a schematic circuit block diagram of the same DC piping system.

Fig. 19 is a schematic circuit block diagram of the same DC piping system.

Fig. 20 is a schematic circuit block diagram of the same DC piping system.

Fig. 21 is a schematic circuit block diagram of the same DC piping system.

Fig. 22 is a schematic circuit block diagram of the same DC piping system.

Fig. 23 is a schematic perspective view of a state before the DC piping system and the DC power supply section of the second embodiment are connected.

Fig. 24 is a schematic perspective view showing a method for connecting a DC piping system and a DC power supply portion according to the first modification of the second embodiment.

Fig. 25 is an external perspective view of a power supply member included in the DC piping system according to the first modification of the second embodiment.

Fig. 26 is an exploded perspective view of power supply components included in the same DC piping system.

Fig. 27 is a right side view of a DC pipe included in the DC pipe system according to the second modification of the second embodiment.

Fig. 28 is an external perspective view of a first power supply member included in the same DC piping system.

Fig. 29 is a rear view of a first power supply member included in the same DC piping system.

Fig. 30 is a cross-sectional view of a state in which a first power supply member included in the same DC piping system is connected to a DC piping.

Fig. 31 is an external perspective view of a second power supply member included in the same DC piping system.

Fig. 32 is a rear view of a second power supply member included in the same DC piping system.

Fig. 33 is a sectional view of a state in which a second power supply member included in the same DC piping system is connected to the DC piping.

Fig. 34 is an external perspective view of a power supply member included in the DC piping system according to the third modification of the second embodiment.

Detailed Description

In each of the following embodiments, a DC piping system of the present disclosure, a DC piping and a power supply member included in the DC piping system, and a power supply system will be described with reference to the drawings. However, the following embodiments are only some of the various embodiments of the present disclosure. The following embodiments may be modified in various ways depending on designs and the like as long as the objects of the present disclosure can be achieved. Further, the drawings described in the following embodiments are schematic diagrams, and the ratio of the size and thickness of each component in the drawings does not necessarily reflect the actual size ratio. Further, the following embodiments (including modifications) can be implemented in combination with each other as appropriate.

(first embodiment)

(overview)

As shown in fig. 1, the DC piping system 100 of the present embodiment includes a DC piping 3 and a power supply member (so-called feed-in portion) 4.

The DC pipe 3 holds a positive-side first conductive bar 32A and a negative-side second conductive bar 32B to which a DC voltage is to be applied. The power receiving device 5 (see fig. 14) may be connected to the DC pipe 3 at any position in the length direction of the first conductive strip 32A and the second conductive strip 32B. The power receiving device 5 is a device that receives a DC voltage supply via the first conductive strip 32A and the second conductive strip 32B.

As shown in fig. 3, the power supply member 4 has a first contact 44A connectable to the first conductive strip 32A and a second contact 44B connectable to the second conductive strip 32B. The power supply member 4 is connected to one end of the DC pipe 3 in the length direction.

At the other end of the DC pipe 3 in the length direction (the end opposite to the one end to which the power feeding member 4 is connected), an anti-connection structure (e.g., a protrusion 35) is provided. The connection preventing structure (protrusion 35) is in contact with at least a portion of the power feeding member 4 (e.g., a protrusion 45 provided on the power feeding member body 42) to prevent the power feeding member 4 from being connected to the other end of the DC duct 3.

The power feeding member 4 has a first terminal 43A, a second terminal 43B, and a power feeding member main body 42, as shown in fig. 8. The first terminal 43A is electrically connected to the first contact 44A, and is connectable to the electric wire W1 on the positive side of the DC power supply portion PE1 (see fig. 14) that outputs the DC voltage. The second terminal 43B is electrically connected to the second contact 44B, and is connectable to the electric wire W2 on the negative electrode side of the DC power supply portion PE 1. The power feeding member main body 42 holds the first terminal 43A and the second terminal 43B. The power feeding member main body 42 is provided with polarity display portions (marks M1 and M2) that display polarities of the first terminal 43A and the second terminal 43B.

Note that in the following description, the first conductive strip 32A and the second conductive strip 32B may be collectively referred to as conductive strips 32 in some cases. Further, in some cases, the first contact 44A and the second contact 44B may be collectively referred to as contacts 44.

The powered device 5 connected to the DC pipe 3 includes an adapter 5A (see fig. 6 and 11 to 14). The adapter 5A has a connector to which a connector 95 provided on an electric wire of the electric device 94 can be connected. When the adapter 5A is connected to the DC pipe 3, the adapter 5A receives a supply of DC voltage via the first and second conductive strips 32A, 32B of the DC pipe 3. Then, when the connector 95 provided on the electric wire of the electric device 94 is connected to the connector of the adapter 5A, the DC voltage is supplied from the DC pipe 3 to the electric device 94 via the adapter 5A. There is no particular limitation on the type of electrical device 94. Examples of the electric device 94 include a computer terminal (personal computer, smart phone, tablet computer terminal, etc.), an auxiliary device for the computer terminal (monitor, speaker, microphone, etc.), a lighting device (desk lamp, etc.), a web camera, a sensor (temperature sensor, humidity sensor, illuminance sensor, etc.), a game console, and an air conditioner (desk fan lamp). Note that the power receiving device 5 is not limited to the adapter 5A, and may be the electric device 94 itself. By connecting the electrical device 94 as the power receiving device 5 to the DC pipe 3, the electrical device 94 can receive a supply of DC voltage from the DC pipe 3. Note that any position in the length direction at which the power receiving device 5 is connected to the first conductive strip 32A and the second conductive strip 32B may include being electrically connected to the first conductive strip 32A or the second conductive strip 32B while being provided at any position in the mounting area continuous in the length direction of the first conductive strip 32A and the second conductive strip 32B.

Since the power supply member main body 42 is provided with the polarity display portions (marks M1 and M2), when the wires W1 and W2 of the DC power supply portion PE1 are connected to the first terminal 43A and the second terminal 43B, respectively, the possibility of mistaking the polarities of the wires connected to the first terminal 43A and the second terminal 43B can be reduced. Further, since the DC duct 3 is provided with the connection preventing structure at the other end in the length direction, the possibility of erroneously connecting the power feeding member 4 to the other end of the DC duct 3 can be reduced. Accordingly, the power supply member 4 can be reliably connected to one end of the DC pipe 3, and a DC voltage can be applied to the first conductive strip 32A and the second conductive strip 32B such that the first conductive strip 32 is on the positive electrode side and the second conductive strip 32B is on the negative electrode side. Therefore, the possibility of applying the DC voltage to the first conductive bar 32A and the second conductive bar 32B with the wrong polarity can be reduced.

Here, the DC piping system 100 includes a DC piping 3 and a power supply member 4. In other words, the DC pipe 3 is a DC pipe included in (applied to) the DC pipe system 100. Further, the power supply member 4 is a power supply member included in (applied to) the DC piping system 100.

Further, the DC piping system 100 is included in the power supply system PS1 together with the DC power supply portion PE 1. The DC power supply portion PE1 converts an AC voltage input from the AC power supply 91 into a DC voltage, and outputs the DC voltage to the power supply member 4.

Since the power supply system PS1 includes the DC piping system 100 described above, the possibility of applying the DC voltage to the first conductive strip 32A and the second conductive strip 32B with the wrong polarity can be reduced.

Further, the DC piping system 100 of the present embodiment includes a piping fixing device F1 (fig. 9) in addition to the DC piping 3 described above. The pipe fixing device F1 has a first fixing portion 1 to which the DC pipe 3 is fixed and a second fixing portion 2 to be fixed to furniture (table 7).

Thus, in the DC piping system 100 of the present embodiment, the DC piping 3 can be fixed to furniture by the piping fixing device F1. By connecting the connector 95 of the electrical device 94 (or the connector of the cable connected to the electrical device 94) to the adapter 5A, power can be supplied from the DC pipe 3 to the electrical device 94. Therefore, wiring around furniture is simpler than when power is supplied from the power outlet to the electrical device 94 or when power is supplied from a power tap that distributes power from the power outlet to the electrical device 94. That is, it is possible to reduce the possibility that the electric wire of the electric device 94 is wound around furniture or the like and becomes confused, and simplify the electric wire around furniture.

Here, the furniture to which the DC piping system 100 is fixed is a generic term for household furniture and furniture used in houses or non-houses, and the like. Examples of furniture include tables, and tables that serve as platforms for placing objects. Other examples of furniture include shelves, boxes, vanities, beds, whiteboards, screens, dividers, and benches. The following will describe an example of a case where the DC piping system 100 is used while being fixed to the table 7 serving as a furniture. As shown in fig. 9, the table 7 has a top plate 71, which is rectangular in plan view, two leg portions 72, and two support bases 73. In the following description, a direction along the length direction of the DC pipe 3 is defined as a left-right direction. Further, a direction along the direction in which the power receiving device 5 is attached to and detached from the DC tunnel 3 is defined as a front-rear direction, and a direction orthogonal to both the left-right direction and the front-rear direction is defined as a top-bottom direction. The side of the DC pipe 3 to which the adapter 5A is attached is defined as the front side, and when the DC pipe 3 is seen from the front, the end on the right side of the DC pipe 3 is defined as the first end 31A, and the end on the left side is defined as the second end 31B. Note that these directions are not intended to limit the direction of use of the DC piping system 100. In addition, the arrows indicating front, rear, left, right, up, and down in fig. 1 and the like are for description only and are not essential.

Further, the DC piping system 100 of the present embodiment includes a partition fixing structure S1 (see fig. 11 and 12) capable of fixing the partition 6 (see fig. 9). "divider" is also known as a divider or screen. The partition system 200 includes the DC piping system 100 and the partition 6. In the present embodiment, three separators 6 are included in one separation system 200.

The partition 6 is fixed above the top plate 71. As a result, the space above the top plate 71 is partitioned into two spaces with the partition 6 therebetween. When some people (hereinafter referred to as "first person") are seated on one side of the table 7 and other people (hereinafter referred to as "second person") are seated on the opposite side of the table, the partition 6 is located between the first person and the second person. As a result, the second person can be prevented from touching the spray scattered by the first person speaking, sneezing, coughing, or the like. Similarly, a first person may be prevented from contacting spray that is spread by a second person speaking, sneezing, coughing, etc.

(details)

(1) DC pipeline system

Hereinafter, the DC piping system 100 and a configuration for use with the DC piping system will be described in more detail.

As shown in fig. 1 to 4 and 6, the DC piping system 100 includes two (only one is shown in fig. 1 and 4) DC pipes 3 and two (only one is shown in fig. 1 and 4) power feeding members 4 (so-called feed-ins), and two (only one is shown in fig. 6) end caps CP1. The pipe fixing device F1 has two first fixing portions 1 and two second fixing portions 2. The two first fixing parts 1 are in one-to-one correspondence with the two DC pipes 3. Each first fixing portion 1 fixes a corresponding DC pipe 3. One of the two second fixing portions 2 fixes an end portion on one side in the length direction of the two first fixing portions 1 to the table 7, and the other one of the two second fixing portions 2 fixes the other end of the two first fixing portions 1 in the length direction to the table 7.

Further, the configuration used with the DC piping system 100 includes one or more adapters 5A (see fig. 6 and 13), three dividers 6, and a table 7.

(2) Table (Table)

As shown in fig. 9, the table 7 has a top plate 71, which is rectangular in plan view, two leg portions 72, and two support bases 73. One of the two leg portions 72 protrudes downward from the vicinity of the right end of the top plate 71, and the other of the two leg portions protrudes downward from the vicinity of the left end of the bottom plate 71. The two support bases 73 are in one-to-one correspondence with the two leg portions 72. Each support base 73 is connected to a lower end of the corresponding leg 72 and supports the leg 72.

(3) First fixing part

As shown in fig. 10A, the two first fixing portions 1 are arranged side by side in the front-rear direction and engaged with each other. As shown in fig. 6, each of the two first fixing parts 1 includes a pipe receiving part 11 and two connection protrusions 12. The pipe accommodator 11 and the two connection protrusions 12 are formed as one piece.

The pipe accommodation portion 11 is rectangular parallelepiped in shape. The pipe accommodation portion 11 has a length in the left-right direction. One of the two connection protrusions 12 protrudes from the right end of the pipe receiving portion 11, and the other protrudes from the left end of the pipe receiving portion 11. The pipe accommodation portion 11 accommodates the DC pipe 3, that is, a pipe main body (so-called pipe rail) 31 of the DC pipe 3. The duct accommodating portion 11 also accommodates the power feeding member 4. Each of the two connection protrusions 12 is configured to connect the first fixing portion 1 to the second fixing portion 2. Here, in the two DC pipes 3 respectively held by the two first fixing portions 1, the power feeding members 4 are attached to the respective ends of the first fixing portions 1 in the length direction. In the present embodiment, as shown in fig. 10A, in one DC duct 3, a first power supply member 4A for the right end is connected to a first end 31A that is the right end of the DC duct 3, and in the other DC duct 3, a second power supply member 4B for the left end is connected to a second end 31B that is the left end of the DC duct 3. That is, the power feeding member 4 includes a first power feeding member 4A connected to the first end 31A and a second power feeding member 4B connected to the second end 31B, among the first end 31A and the second end 31B in the length direction of the DC duct 3.

Each first fixing portion 1 has an accommodation groove 130 and two wire passage grooves 140. The accommodation groove 130 accommodates the DC pipe 3 and the power supply member 4. The wires W1 and W2 (see fig. 10A and 10B) electrically connected to the DC pipe 3 pass through the wire passage groove 140.

The accommodation groove 130 is provided in the pipe accommodation portion 11. The accommodation groove 130 is formed along the longitudinal direction (left-right direction) of the pipe accommodation portion 11. In each of the two first fixing portions 1, the accommodation groove 130 is open on an outward facing surface.

The two wire passage grooves 140 are in one-to-one correspondence with the two connection protrusions 12. Each wire passage groove 140 is provided above the corresponding connection protrusion 12 and the pipe receiving portion 11. That is, the wire passage grooves 140 are provided at the right and left ends of the first fixing portion 1, respectively. Each of the wire passage grooves 140 is formed along the length direction (left-right direction) of the pipe accommodation portion 11. Each of the two first fixing portions 1 has a wire passage groove 140 open on an inward-facing surface thereof.

When the two first fixing portions 1 are joined together, the wire passage grooves 140 at the right ends of the two first fixing portions 1 are joined together to form one space (see fig. 10A), and the wire passage grooves 140 at the left ends of each of the two first fixing portions 1 are joined together to form another space. Each wire passage groove 140 is connected to the receiving groove 130. The wires W1 and W2 passing through the wire passage groove 140 are electrically connected to the first terminal 43A and the second terminal 43B of the power feeding member 4 accommodated in the accommodation groove 130 (see fig. 8, 10A and 10B). The positive-side electric wire W1 is electrically connected to the first conductive strip 32A of the DC duct 3 via the first terminal 43A, and the negative-side electric wire W2 is electrically connected to the second conductive strip 32B of the DC duct 3 via the second terminal 43B.

Further, each of the two first fixing portions 1 has a part of the spacer fixing structure S1, as shown in fig. 6. That is, each of the two first fixing portions 1 has four (only two are shown in fig. 6) recesses 150. Four recesses 150 are provided in the pipe accommodator 11. In the two first fixing portions 1, the recess 150 is provided on the inward facing surface of the pipe accommodation portion 11. The recess 150 is provided from the upper end to the lower end of the pipe accommodator 11.

When the two first fixing parts 1 are joined together, the four recesses 150 of each of the two first fixing parts 1 are joined together to form four gaps between the two first fixing parts 1. Each of the four gaps corresponds to the spacer fixing structure S1. More specifically, each spacer fixing structure S1 is a through hole vertically penetrating a structure obtained by joining together two first fixing portions 1.

The four spacer fixing structures S1 are arranged side by side in the left-right direction. The four spacer fixing structures S1 are in one-to-one correspondence with the four fitting protrusions belonging to the three spacers 6 (6A, 6B, 6C). A corresponding fitting protrusion is inserted into each of the spacer fixing structures S1. Thereby, each partition 6 is fixed to two first fixing portions 1, i.e., the DC pipes 3.

(4) Second fixing part

As shown in fig. 6 and 9, each of the two second fixing portions 2 includes a horizontal portion 21, a supporting portion 22, and a clamping mechanism 23. The horizontal portion 21 and the support 22 are formed as one piece. The two second fixing portions 2 are structures (fixing members) for fixing the pipe main body 31 to furniture (table 7). More specifically, two second fixing portions 2 are used together with two first fixing portions 1 to fix the pipe main body 31 to furniture (table 7).

The horizontal portion 21 is rectangular in shape. The axial direction of the horizontal portion 21 is along the left-right direction.

The two second fixing portions 2 are in one-to-one correspondence with the two connecting protrusions 12 provided on both ends of each of the two first fixing portions 1 in the left-right direction. The respective connection protrusions 12 of the two connection protrusions 12 provided on each of the two first fixing portions 1 are inserted into the horizontal portion 21 of the second fixing portion 2. Furthermore, the two first fixing portions 1 are respectively screwed to the two second fixing portions 2. As a result, the two first fixing portions 1 are connected to the two second fixing portions 2. That is, the two first fixing portions 1 are connected to the two second fixing portions 2 so as to bridge between the two second fixing portions 2. Furthermore, each of the two first fixing portions 1 may be separated from the two second fixing portions 2. That is, the two first fixing portions 1 can be separated from the two second fixing portions 2 by removing screws connecting the two first fixing portions 1 and the two second fixing portions 2 and pulling out the connecting protrusion 12 from the horizontal portion 21.

The support portion 22 is cylindrical in shape. The axial direction of the support portion 22 extends in the up-down direction. The horizontal portion 21 protrudes from the upper end of the support 22 in the left-right direction. The inner space of the horizontal portion 21 is connected with the inner space of the support 22 to form an inner space SP1 (see fig. 10A). A total of four wires W1 and W2 connected in pairs to the two power feeding members 4 pass through the internal space SP1. That is, the second fixing portion 2 (fixing member) has an internal space SP1 through which the electric wires W1 and W2 (see fig. 1) electrically connected to the first conductive strip 32A and the second conductive strip 32B pass.

The support 22 has a wire passage hole 220. The wire passage hole 220 is provided on a side surface of the support portion 22. The wires W1 and W2 are led out from the internal space SP1 to the outside through the wire passage hole 220.

The clamping mechanism 23 is fixed to the table 7 (furniture) by clamping a portion (e.g., the top plate 71) of the table 7 (furniture). More specifically, one of the two second fixing portions 2 clamps one end in the length direction of the top plate 71, and the other of the two second fixing portions 2 clamps the other end in the length direction of the top plate 71. Thereby, the DC piping system 100 is fixed to the table 7 (furniture).

The holding mechanism 23 has a movable portion 231, a base 232, and an operating portion 233.

The base 232 is formed in one piece with the support 22. The base 232 protrudes from the lower end of the support portion 22 in the left-right direction.

The movable portion 231 is provided on the base 232. A part of the movable portion 231 is disposed inside the wire passage hole 220 of the support 22.

The operation portion 233 receives an operation for moving the movable portion 231 in the up-down direction. The operation portion 233 is a lever, and when the worker rotates the operation portion 233, the movable portion 231 moves in the up-down direction.

The process of fixing the DC piping system 100 to the table 7 using the clamping mechanism 23 will be described below. As shown in fig. 9, a portion (left end or right end) of the top plate 71 of the table 7 is inserted into the wire passage hole 220. As a result, a portion (left end or right end) of the top plate 71 is disposed between the support 22 and the movable portion 231. The worker rotates the operation portion 233 to move the movable portion 231 upward. As a result, a portion (left end or right end) of the top plate 71 is sandwiched between the support 22 and the movable portion 231. The DC piping system 100 is fixed to the table 7 by clamping the left and right ends of the top plate 71 using the clamping mechanisms 23 of the two second fixing portions 2.

Further, due to the presence of the support portion 22, a gap G1 (see fig. 9) is ensured between the two first fixing portions 1 of the DC piping system 100 and the top plate 71 of the table 7. In other words, the gap G1 is ensured between the two pipe bodies 31 of the two first fixing portions 1 and the top plate 71. In other words, the second fixing portion 2 (fixing member) includes the support portion 22, which support portion 22 supports the two pipe main bodies 31 with the gap G1 between the two pipe main bodies 31 and the table 7 (furniture).

In the present disclosure, the gap existing between the duct body 31 and the table 7 (furniture) includes a case where a predetermined member (a part of the first fixing portion 1) exists between the duct body 31 and the table 7, and there is a gap G1 extending from the lower surface of the predetermined member to the upper surface of the table 7, as in the present embodiment. Further, in the present disclosure, the presence of a gap between the duct body 31 and the table 7 (furniture) includes a case in which there is a gap extending from the lower surface of the duct body 31 to the upper surface of the table 7.

By passing through the gap G1, an object such as a document can be transferred across the partition 6. Further, the opening may be provided in a portion of the top plate 71 of the table 7 below the first fixing portion 1. The opening is a space through which an electric wire for supplying AC power is to be pulled out from below the top plate 71. The user can put his hand into the gap G1 and pull out the electric wire through the opening.

(5) DC pipeline

As shown in fig. 1 to 4, 6 and 13, each of the two DC pipes 3 includes a pipe body 31 and two conductive strips 32 (a first conductive strip 32A and a second conductive strip 32B). The pipe body 31 includes a first rail 311 of metal and two second rails 312 of synthetic resin.

The two DC pipes 3 are in one-to-one correspondence with the two first fixing portions 1. Each DC pipe 3 is received in the receiving groove 130 of the corresponding first fixing portion 1. For this purpose, two DC pipes 3 are arranged on both sides in the front-rear direction with a partition 6 therebetween. That is, the DC piping system 100 includes a plurality (two) of DC pipes 3, and the plurality of DC pipes 3 includes two DC pipes 3 arranged on both sides with the partition 6 interposed therebetween. Thus, in the present embodiment, power can be supplied to the electric devices 94 arranged on both sides of the partition 6.

Further, in a state where the plurality of DC pipes 3 are fixed to the first fixing portion 1 and the second fixing portion 2 is fixed to the furniture (table 7), the two DC pipes 3 are located on opposite sides to each other in a predetermined direction (front-rear direction) along the horizontal plane. In other words, the two DC pipes 3 are arranged side by side in the front-rear direction.

The first rail 311 is rectangular in shape. The axial direction (longitudinal direction) of the first rail 311 extends in the left-right direction. The first rail 311 includes a recess 3110. The recess 3110 is formed along the longitudinal direction (left-right direction) of the pipe body 31. More specifically, the recesses 3110 are formed above both ends in the length direction of the pipe body 31. Two conductive strips 32 are accommodated in the recess 3110.

The recess 3110 opens on a plane along the surface of the partition 6. More specifically, in each of the two DC pipes 3, the recess 3110 is open in a surface (outward-facing surface) opposite to a surface in which the two DC channels 3 face each other. Note that in each of the two DC pipes 3, the surface at which the recess 3110 opens is referred to as a front surface. In each of the two DC pipes 3, an end portion as a right end when viewed from the front side is referred to as a first end 31A, and an end portion as a left end is referred to as a second end 31B.

As shown in fig. 1, 2A, 2B, and 13, the first rail 311 further includes two fitting portions 3111 and two attachment grooves 3112.

Each of the two fitting portions 3111 is a groove. Two fitting portions 3111 are provided in the inner surface of the recess 3110. Two fitting portions 3111 are formed along the length direction (left-right direction) of the pipe main body 31. More specifically, two fitting portions 3111 are formed on the entirety of the pipe main body 31 in the length direction. Two fitting portions 3111 are fitted to the adapter 5A. Thus, the adapter 5A is attached to the DC pipe 3. That is, the pipe body 31 includes an adapter attaching portion (two fitting portions 3111) for attaching the adapter 5A. A process for attaching the adapter 5A to the DC pipe 3 will be described later.

Two attachment grooves 3112 are provided in the inner surface of the recess 3110. In the two fitting portions 3111 and the two attaching grooves 3112, the two fitting portions 3111 are disposed closer to the opening of the recess 3110. Two attachment grooves 3112 are formed along the length direction (left-right direction) of the pipe body 31. More specifically, two attachment grooves 3112 are formed on the entirety of the pipe main body 31 in the length direction.

The two attachment grooves 3112 are in one-to-one correspondence with the two second guide rails 312. A corresponding second guide rail 312 is fitted in each attachment groove 3112. Thus, two second rails 312 are attached to the first rail 311. The first rail 311 has two protrusions 3113 (see fig. 13) for preventing the two second rails 312 from falling off.

Further, the first rail 311 also has a restricting portion 3114 (see fig. 13). The restricting portion 3114 is a protrusion. A restricting portion 3114 (see fig. 13) is provided below the first rail 311. The restricting portion 3114 is inserted into the restricting portion 55 (recess) of the adapter 5A.

Each of the two second guide rails 312 has a length in the left-right direction. The second rail 312 is made of synthetic resin such as PTC (polyvinyl chloride). The shape of the second rail 312 in a cross section perpendicular to the left-right direction is a U-shape. The second guide rail 312 holds the conductive strip 32 (the first conductive strip 32A or the second conductive strip 32B) inside.

Each of the two conductive strips 32 (the first conductive strip 32A or the second conductive strip 32B) has a length in the left-right direction. Each of the first and second conductive strips 32A and 32B is disposed from the right end to the left end of the pipe body 31. The first conductive strip 32A and the second conductive strip 32B are electrically connected to the respective electric wires W1, W2 through the power feeding member 4 (see fig. 7, 8, and 10A). In the present embodiment, the first conductive strip 32A is electrically connected to the positive-side wire W1, the second conductive strip 32B is electrically connected to the negative-side wire W2, and the first conductive strip 32 and the second conductive strip 32B are supplied with DC power.

The pipe main body 31 is provided at a first end (e.g., right end) 31A and a second end (e.g., left end) 31B in the length direction with fitting portions for fitting with the power feeding member 4. Accordingly, the pipe body 31 is provided with a connection preventing structure that restricts an end to which the power feeding member 4 can be attached to the first end 31A or the second end 31B. In the present embodiment, the connection preventing structure includes a protrusion 35 provided on the inner surface of the pipe body 31. The protrusion 35 is provided below the rear wall in the recess 3110 of the duct body 31. The protrusion 35 is provided on the entirety of the pipe body 31 in the longitudinal direction (left-right direction). That is, the DC pipe 3 is provided with the connection preventing structure (the protrusion 35) on the entirety of the first conductive strip 32A and the second conductive strip 32B in the longitudinal direction (the left-right direction).

Therefore, as shown in fig. 2A and 2B, when the DC duct 3 is viewed from the length direction, the shape of the fitting portion (the first end 31A and the second end 31B) of the DC duct 3 into which the power feeding member 4 is fitted is asymmetric with respect to the center line L1 of the DC duct 3 in the predetermined direction. The predetermined direction is a direction (up-down direction) perpendicular to both the attachment direction (front-back direction) and the longitudinal direction (left-right direction) in which the power receiving device 5 (adapter 5A or the like) is attached to the DC pipe 3.

The protrusion 35 is provided on the pipe body 31 as an anti-connection structure, and the protrusion 35 is provided over the entirety of the pipe body 31 in the length direction. Therefore, when an attempt is made to connect the first power feeding member 4A connectable to the first end 31A to the second end 31B, the power feeding member main body 42 of the first power feeding member 4A interferes with the protrusion 35 at the second end 31B, and the connection of the first power feeding member 4A to the second end 31B is prevented. Further, when an attempt is made to connect the second power feeding member 4B connectable to the second end 31B to the first end 31A, the power feeding member main body 42 of the second power feeding member 4B interferes with the protrusion 35 on the first end 31B, and the second power feeding member 4B is prevented from being connected to the first end 31A. That is, the connection preventing structure (the protrusion 35) prevents the first power feeding member 4A from being connected to the second end 31B, and prevents the second power feeding member 4B from being connected to the first end 31A. The power feeding member 4 is advantageous in that connection to the end opposite to the end allowing the power feeding member 4 to be connected of the first and second ends 31A and 31B can be prevented, and the first and second contacts 44A and 44B of the power feeding member 4 are reliably connected to the first and second conductive bars 32A and 32B, respectively.

Further, since the pipe body 31 is provided with the protrusion 35 as the connection preventing structure in the entire length direction, the shape of the first end 31A and the second end 31B of the pipe body 31 can be formed in the same shape even if the pipe body 31 is cut to an appropriate length according to the size of furniture to which the DC pipe 3 is attached.

(6) Power supply member and end cap

As shown in fig. 6, two power supply members 4 are in one-to-one correspondence with two DC pipes 3. The two end caps CP1 are in one-to-one correspondence with the two DC pipes 3. A corresponding power supply member 4 is attached to one of the first end 31A and the second end 31B of each DC duct 3, and a corresponding end cap CP1 is attached to the other.

As described above, the power supply member 4 is configured to be connectable to only one of the first end 31A and the second end 31B of the DC pipe 3. That is, the power feeding member 4 includes a first power feeding member 4A connected to the first end 31A of the pipe body 31 and a second power feeding member 4B connected to the second end 31B of the pipe body 31. Note that one DC pipe 3 may be connected to only one of the first power supply member 4A and the second power supply member 4B.

The power feeding member 4 (first power feeding member 4A and second power feeding member 4B) is configured to electrically connect the two conductive strips 32 (first conductive strip 32A and second conductive strip 32B) of the DC pipe 3 to the respective electric wires W1 and W2 (see fig. 8 and 10A). That is, the first conductive strip 32A and the second conductive strip 32B are electrically connected to the respective electric wires W1 and W2 via the power feeding member 4. Hereinafter, the configuration of the power feeding member 4 will be described with reference to fig. 8, taking the second power feeding member 4B as an example. Note that the configuration of the first power feeding member 4A is the same as that of the second power feeding member 4B except for the protrusions 45A and 45B, and thus a description of the first power feeding member 4A is omitted.

The power feeding member 4 (second power feeding member 4B) includes a housing 41, a power feeding member main body 42, and two terminals 43.

The outer case 41 has a rectangular parallelepiped shape. The outer case 41 accommodates the power supply member main body 42. The power supply member main body 42 has a first block 421 and a second block 422. By coupling the first block 421 and the second block 422 together, one box-shaped member (power feeding member main body 42) is formed.

The power supply member main body 42 accommodates two terminals 43. Further, the power feeding member main body 42 has two electric wire insertion holes 423, and the two electric wires W1 and W2 are inserted into the two electric wire insertion holes 423. Two wire insertion holes 423 are provided in the first block 421.

The two terminals 43 include a first terminal 43A connected to the positive-side wire W1 of the DC power supply and a second terminal 43B connected to the negative-side wire W2 of the DC power supply. The first contact 44A is provided integrally with the first terminal 43A, and the second contact 44B is provided integrally with the second terminal 43B. Each of the two terminals 43 (the first terminal 43A and the second terminal 43B) has a spring 431 and a terminal portion 432 (see fig. 10B). A set of springs 431 and terminal portions 432 constitute a quick connect terminal. That is, each of the two terminals 43 has a quick-connect terminal.

The spring 431 is formed by bending a metal plate or the like. The terminal portion 432 is made of a metal plate and formed in a plate shape. The terminal portion 432 faces the spring 431. The two terminals 43 (first terminal 43A and second terminal 43B) are in one-to-one correspondence with the two conductive strips 32 (first conductive strip 32A and second conductive rod 32B). The terminal portion 432 of each terminal 43 is electrically connected to the corresponding conductive strip 32 (the first conductive strip 32A and the second conductive strip 32B). That is, the first terminal 43A includes the first contact 44A constituted by the terminal portion 432, and the second terminal 43B includes the second contact 44B constituted by the terminal portion 432.

As shown in fig. 10A and 10B, each of the wires W1 and W2 inserted into the power feeding member main body 42 through the wire insertion hole 423 is sandwiched between the spring 431 and the terminal portion 432. Accordingly, each of the electric wires W1 and W2 is electrically connected to the first terminal 43A and the second terminal 43B, respectively, and is held between the spring 431 and the terminal portion 432.

As described above, the power supply member 4 is configured to be connectable to only one of the first end 31A and the second end 31B of the DC pipe 3.

The power feeding member body 42 of the power feeding member 4 is provided with a protrusion 45, which protrusion 45 interferes with the protrusion 35 of the DC link 3 to prevent the power feeding member 4 from being connected to an end opposite to the connectable end of the power feeding member 4 out of the first end 31A and the second end 31B of the DC link 3. Hereinafter, in some cases, the protrusion 45 provided on the power feeding member body 42 of the first power feeding member 4A will be referred to as a protrusion 45A, and the protrusion 45 provided on the power feeding member body 42 of the second power feeding member 4B will be referred to as a protrusion 45B.

The power feeding member body 42 of the second power feeding member 4B connectable to the second end 31B of the DC link 3 is provided with a protrusion 45B (fig. 4) at a position interfering with the protrusion 35 when the power feeding member body 42 is attempted to be inserted into the first end 31A. Since the projection 45B is provided on the opposite side (upper side when connected to the second end 31B of the DC pipe 3) of the projection 35 in the up-down direction, the projection 45B does not interfere with the projection 35 when the power feeding member main body 42 is inserted into the second end 31B. Accordingly, the second power supply member 4B is configured to be connectable only to the second end 31B of the DC pipe 3, and can be prevented from being attached to the side of the DC pipe 3 opposite to the side where connection is permitted.

Further, the power feeding member body 42 of the first power feeding part 4A connectable to the first end 31A of the DC link 3 is provided with a protrusion 45A (see fig. 1) at a position interfering with the protrusion 35 when the power feeding member body is inserted into the second end 31B. Since the projection 45A is provided on the opposite side of the projection 35 in the up-down direction (on the upper side when connected to the first end 31A of the DC pipe 3), the projection 45A does not interfere with the projection 35 when the power feeding member main body 42 is inserted into the first end 31B. Accordingly, the first power supply member 4A is configured to be connectable only to the first end 31A of the DC pipe 3, and can be prevented from being attached to the side of the DC pipe 3 opposite to the side where connection is permitted.

Further, the power feeding member main body 42 is provided with marks M1 and M2 as polarity display portions indicating polarities of the electric wires W1 and W2 connected to the two terminals 43 (the first terminal 43A and the second terminal 43B). Marks M1 and M2 are provided on the surface of the power feeding member main body 42 in the vicinity of the wire insertion holes 423 corresponding to the first terminal 43A and the second terminal 43B, respectively. The marks M1 and M2 are provided on the power supply member body 42 using a suitable method such as resin molding, engraving, printing, painting, or attaching a sticker or a nameplate on which the marks M1 and M2 are printed. Since the polarity display portions (marks M1 and M2) are provided on the surface of the power feeding member main body 42, there is an advantage in that an error between polarities is less likely to occur when the electric wires W1 and W2 are connected to the first terminal 43A and the second terminal 43B.

(7) Partition piece

The separator 6 will be described below with reference to fig. 9. Hereinafter, the three separators 6 may be distinguished and referred to as separators 6A, 6B, and 6C, respectively. The configuration commonly held between the three separators 6 is denoted by the same reference numerals, and redundant description thereof is omitted appropriately. Among the three separators 6, the separator 6A is located on the rightmost side, the separator 6C is located on the leftmost side, and the separator 6B is located between the separators 6A and 6C.

The spacers 6A to 6C each have a translucent plate-like spacer body 61. The material of the separator 6 is, for example, acrylic resin. The lower portion of the spacer body 61 is provided with a fitting protrusion inserted into the spacer fixing structure S1 (through hole).

The fitting protrusions of the three spacers 6 are inserted into the corresponding spacer fixing structures S1 (through holes). Thereby, each partition 6 is fixed to the DC piping system 100. That is, the spacer fixing structure S1 is a structure that mates with the spacer 6. Each divider 6 may be removed from the DC piping system 100 by removing the mating protrusion from the divider securing structure S1. That is, the spacer fixing structure S1 detachably fixes the spacer 6.

(8) Adapter device

As shown in fig. 9 and 10A, one first fixing portion 1 is provided on both sides in the front-rear direction with the partition 6 interposed therebetween, and each first fixing portion 1 accommodates the DC pipe 3. The adapter 5A may be attached to the two DC pipes 3, respectively.

As shown in fig. 11 to 13, the adapter 5A has a housing 51, a release operating portion 52, an attachment protrusion 53, two power receiving terminals 54, and a spring accommodated in the housing 51.

The housing 51 has a rectangular parallelepiped shape. The housing 51 has a first insertion port 511 and a second insertion port 512. The first insertion port 511 is an insertion port of a USB-a plug serving as the connector 95 (see fig. 14). The second insertion port 512 is an insertion port for a USB type-C plug serving as the connector 95. That is, the first add port 511 has a different standard from the second add port 512. The size of the first insertion port 511 is different from the size of the second insertion port 512.

When the adapter 5A is attached to the DC pipe 3, the first insertion port 511 and the second insertion port 512 are provided on a surface (connector mounting surface 501) facing away from the DC pipe 3. When the adapter 5A is attached to the DC pipe 3, the first insertion port 511 and the second insertion port 512 are arranged side by side in the up-down direction.

The release operating portion 52 is held by the housing 51. The release operating portion 52 can be moved in a predetermined direction due to the applied force. The resilience of the spring accommodated in the housing 51 acts on the release operating portion 52. Therefore, when no force is applied to the release operating portion 52, the front end portion (claw portion 520) of the release operating portion protrudes from the housing 51 to the side opposite to the connector mounting surface 501 side.

The attachment protrusion 53 includes a shaft portion 531 and two rib portions 532. The shaft portion 531 protrudes from the housing 51 to the side opposite to the connector mounting surface 501 side. Two ribs 532 protrude from the side surface of the shaft portion 531. The two ribs 532 protrude in mutually opposite directions.

Two power receiving terminals 54 protrude from the housing 51 to a side opposite to the connector mounting surface 501 side. The front end of each of the two power receiving terminals 54 is curved.

The adapter 5A has a restriction 55. The restriction 55 is a recess formed in the surface of the adapter 5A (the surface facing the DC pipe 3). When the adapter 5A is attached to the pipe body 31, the restricting portion 3114 (projection) of the pipe body 31 is inserted into the restricting portion 55. If the direction of the adapter 5A is the wrong direction (i.e., if the direction shown in fig. 11 is inverted), the restriction 3114 interferes with the adapter 5A, and thus the adapter 5A cannot be attached to the pipe main body 31. That is, when the adapter 5A is attached to the pipe main body 31, the restricting portions 55 and 3114 restrict the orientation of the adapter 5A. As a result, of the two power receiving terminals 54, the positive-side power receiving terminal 54 is connected to the positive-side first conductive bar 32A, and the negative-side power receiving terminal 54 is connected to the negative-side second conductive bar 32B.

The adapter 5A also has a voltage converter. The voltage converter converts the DC voltage received by the two power receiving terminals 54 into a DC voltage having a desired voltage value. The DC voltage whose voltage value has been converted by the voltage converter is output from the first add port 511 and the second add port 512. The DC voltage is applied to the electrical device 94 through a cable including a connector 95 connected to the first insertion port 511 or the second insertion port 512 (see fig. 14).

The process of connecting the adapter 5A to the DC pipe 3 will be described below.

In the orientation of the housing 51 shown in fig. 12 and 13, two ribs 532 are arranged side by side in the up-down direction.

First, as shown in fig. 11, the worker holds the adapter 5A such that the direction in which the two rib portions 532 are arranged side by side is along the length direction (left-right direction) of the pipe main body 31. In this state, the attachment protrusion 53 can be inserted into the recess 3110 of the pipe body 31 without the two ribs 532 interfering with the pipe body 31. The release operating portion 52 moves toward the connector mounting surface 501 due to the contact pressure with the first fixing portion 1.

As shown in fig. 11, after inserting the attachment projection 53 into the recess 3110, the worker rotates the adapter 5A clockwise by 90 degrees as shown in fig. 12 and 13. Then, the two rib portions 532 are inserted into the two fitting portions 3111 as shown in fig. 13. This restricts the movement of the adapter 5A in the front-rear direction. Further, as shown in fig. 12, the claw 520 of the release operation portion 52 is inserted into the recess 3110 of the duct main body 31 to restrict rotation of the housing 51, and thus the adapter 5A is held while being attached to the DC duct 3. Further, the two power receiving terminals 54 are respectively in contact with the corresponding conductive strips 32 (the first conductive strip 32A and the second conductive strip 32B), so as to be electrically connected to the corresponding conductive strips 32.

The adapter 5A is connected to the DC pipe 3 through the above steps. The adapter 5A may be attached to the DC pipe 3 and electrically connected to the conductive strip 32 at any position in the region (attachment region) where the recess 3110 is provided.

Note that in the present embodiment, a configuration for restricting the movement of the adapter 5A attached to the DC pipe 3 in the left-right direction is not provided. Therefore, the adapter 5A can move in the left-right direction in a state of being attached to the DC pipe 3. However, in order to suppress the abrasion of the two power receiving terminals 54 due to the movement of the adapter 5A in the left-right direction, the DC piping system 100 may further include a configuration for restricting the movement of the adapter 5A attached to the DC piping 3 in the left-right direction.

Next, a process of removing the adapter 5A from the DC pipe 3 will be described. When the worker applies a force toward the connector mounting surface 501 to the release operating portion 52, the release operating portion 50 moves and the claw portion 520 comes out of the recess 3110. As a result, the restriction on the rotation of the housing 51 is released. When the worker rotates the housing 51 counterclockwise by 90 degrees, the two ribs 532 come out of the two fitting portions 3111. The adaptor 5A is removed from the DC pipe 3 by the above-described process.

(9) Power supply system

Next, referring to fig. 14, a configuration example of a system (including the DC piping system 100) that supplies power to the electric device 94 will be described.

Switching hub 92 and splitter 93 are provided in a facility using electrical devices 94. The switching hub 92 is electrically connected to the AC power source 91.AC power source 91 provides AC power to switching hub 92. The AC power source 91 is, for example, a commercial power source or a distributed power source.

Switching hub 92 is a PoE (power over ethernet) switching hub compatible with PoE and includes DC power supply section 921. The DC power supply section 921 converts an AC voltage input from the AC power supply 91 into a DC voltage having a predetermined voltage value, and outputs the DC voltage to the splitter 93. Switching hub 92 is electrically connected to splitter 93 via a LAN (local area network) cable. In addition, switching hub 92 may also be electrically connected to PoE-compatible devices. PoE compatible devices are for example computer terminals, webcams, IP (internet protocol) phones, wireless access points, etc. Switching hub 92 may exchange PoE signals containing data and power (DC power) with devices electrically connected to switching hub 92.

The splitter 93 is a PoE-compatible splitter and includes a DC power supply section 931. The DC power supply section 931 converts the DC voltage input from the switching hub 92 into a DC voltage having a predetermined voltage value and outputs the DC voltage to the DC pipe 3. The splitter 93 splits the PoE signal received from the switching hub 92 into data and power (DC power). The splitter 93 provides power split from the PoE signal to non-PoE devices. For example, splitter 93 provides power separated from the PoE signal to one or more non-PoE electrical devices 94 via DC plumbing system 100.

In addition, splitter 93 transmits a data signal including data split from the PoE signal to a non-PoE device.

Here, in the present embodiment, the DC power supply portion PE1 that converts the AC voltage input from the AC power supply 91 into the DC voltage and outputs the DC voltage to the power supply member 4 is constituted by the DC power supply portion 921 of the switching hub 92 and the DC power supply portion 931 of the splitter 93.

The DC power output terminal of the splitter 93 is electrically connected to a first end of each of the two electric wires W1 and W2. One of the two DC pipes 3 corresponds to one of the two pairs of electric wires W1 and W2, and the other DC pipe corresponds to the remaining two electric wires W1 and W2. The following description focuses on one DC pipe 3, two electric wires W1 and W2 corresponding to the DC pipe 3, and one power supply member 4.

The two wires W1 and W2 are a positive-side wire W1 and a negative-side wire W2. The two electric wires W1 and W2 are in one-to-one correspondence with the two electric wire insertion holes 423 (see fig. 8) provided in the power feeding member 4. Further, the two wires W1 and W2 are in one-to-one correspondence with the first conductive strip 32A and the second conductive strip 32B of the DC pipe 3. The second end of the positive-side wire W1 is inserted into the corresponding wire insertion hole 423, connected to the first terminal 43A, and electrically connected to the first conductive strip 32A via the first terminal 43B. The second end of the negative-side electric wire W2 is inserted into the corresponding electric wire insertion hole 423, connected to the second terminal 43B, and electrically connected to the second conductive strip 32B via the second terminal 43B. One or more adapters 5A may be connected to the DC pipe 3, and one or more electrical devices 94 may be electrically connected to the first and second conductive strips 32A, 32B via the adapters 5A.

As described above, each of the electrical devices 94 can receive the power supplied from the DC power supply portion 931 (i.e., the DC power output by the DC power supply portion 931) via the wires W1 and W2 via the conductive strip 32 and the adapter 5A. The user may use the electrical device 94 on or around the table 7 (see fig. 9).

The DC voltage (voltage between the two conductive strips 32) that the adapter 5A receives from the two conductive strips 32 is preferably 60V or less. In this case, there is an advantage in that a certificate such as an electrician is not required at the time of installing the adapter 5A. Thus, the power supply can be easily ensured as compared with when the AC 100V socket is relocated or newly installed.

The DC voltage received by the adapter 5A from the two conductive strips 32 (i.e., the DC voltage output by the DC power supply portion 931) is more preferably 24V or less. Further, the DC voltage received by the adapter 5A from the two conductive strips 32 is preferably 48V or less.

For example, the DC voltage of the PoE signal output from the DC power supply section 921 of the switching hub 92 is 48V. The DC power supply section 931 of the splitter 93 has a function of stepping down the DC voltage of the PoE signal received from the switching hub 92, and the DC voltage output from the DC power supply section 931 of the splitter 93 is, for example, 24V. The adapter 5A receives the DC voltage output from the splitter 93, and outputs a DC voltage of 24V or less to the electric device 94.

By setting the voltage between the two conductive bars 32 of the DC pipe 3 to 60V or less (e.g., 24V), the possibility of electric shock when the user touches the conductive bars 32 can be reduced. Therefore, there is no need to provide the DC pipe 3 with a cover, and there is an advantage in that the task of attaching and detaching the cover in the task of attaching the adapter 5A to the DC pipe 3 does not take time.

Although a configuration example of a system for supplying power to the electric device 94 has been described above, the electric wires W1 and W2 may be connected to a commercial power outlet (see fig. 7) more simply through the AC adapter 96.

(10) Advantages are that

Since the DC pipe 3 of the first embodiment has the connection preventing structure, the power feeding members 4 (the first power feeding member 4A and the second power feeding member 4B) can be connected only to a predetermined one of the first end 31A and the second end 31B of the DC pipe 3. Thus, when the first power feeding member 4A and the second power feeding member 4B are connected to the DC pipe 3, the positive-side first contact 44A is connected to the positive-side first conductive bar 32A, and the negative-side second contact 44B is connected to the negative-side second conductive bar 32B. Therefore, when the first power feeding member 4A and the second power feeding member 4B are connected to the DC pipe 3, the possibility that the positive-side first contact 44A is erroneously connected to the negative-side second conductive strip 32B and the negative-side second contact 44B is erroneously connected to the positive-side first conductive strip 32A can be reduced.

The power feeding member body 42 of the power feeding member 4 (the first power feeding member 4A and the second power feeding member 4B) is provided with polarity display portions (marks M1 and M2) indicating polarities of the electric wires connected to the first terminal 43A and the second terminal 43B, respectively, and therefore, when the electric wires are connected to the first terminal 43A and the second terminal 43B, the possibility of connecting the electric wires having the wrong polarities can be reduced. Therefore, the possibility that the DC voltage having the wrong polarity is applied to the first and second conductive bars 32A and 32B of the DC pipe 3 can be reduced.

(modification of the first embodiment)

The following lists variations of the first embodiment. The following variants can be realized in combination with one another where appropriate.

(first modification)

The furniture to which the DC piping system 100 of the first embodiment is applied is not limited to the table 7 in which people sit on both side seats, but may be a table 7C as shown in fig. 15.

The table 7C is a table, for example, called a counter, in which it is assumed that the user sits only in front of the table 7C. The table 7C includes a table main body 70, a pipe fixing device F2 for fixing the DC pipe 3, and a back plate 74. The pipe fixing device F2 has a first fixing portion 1C and two second fixing portions 2C. The table body 70 includes a top plate 701, a protruding base 702, and a support body 703. The DC pipe 3 is attached to a table 7C. The power supply member 4 and the adapter 5A (see fig. 12) are attached to the DC pipe 3.

(second modification)

The DC piping system 100 of the second modification will be described with reference to fig. 16 and 17.

The DC piping system 100 of the second modification is different from the above-described embodiment in that it includes a notification portion 80 (see fig. 16), the notification portion 80 performing notification of the DC voltage application states of the first contact 44A and the second contact 44B of the power supply member 4. Here, the notification of the application state of the DC voltage is performed includes a notification of whether the DC voltage having a predetermined polarity is being applied to the first contact 44A and the second contact 44B. Further, the notification may be performed by outputting light or sound or both light and sound, and may be performed by transmitting information to a portable communication terminal (e.g., a smart phone or the like) owned by a user (e.g., a worker who connects an electric wire to the power supply member 4). Note that, since components other than the notification portion 80 are the same as those of the above-described embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted.

For example, the notification portion 80 is provided in the power supply member 4. As shown in fig. 16, the notification portion 80 includes a resistor 82 and a light source 81, which are connected between the first terminal 43A and the second terminal 43B. The light source 81 is, for example, a light emitting diode, and is connected between the first contact 44A and the second contact 44B, with the anode on the first contact 44A side and the cathode on the second contact 44B side. The notification portion 80 is accommodated in the power feeding member main body 42 in a state in which the light source 81 is visible from the outside of the power feeding member main body 42 through a hole on the surface of the power feeding member main body 42 (see fig. 17). Note that the light source 81 is not limited to a light emitting diode, but may be a solid-state light source such as an organic EL (electroluminescence), an incandescent lamp, a neon lamp, or the like.

When the positive-side electric wire W1 is connected to the first terminal 43A and the negative-side electric wire W2 is connected to the second terminal 43B, that is, when the electric wires W1 and W2 of the predetermined polarity are connected to the first terminal 43A and the second terminal 43B, the light source 81 is turned on. On the other hand, when the negative-side electric wire W2 is connected to the first terminal 43A and the positive-side electric wire W1 is connected to the second terminal 43B, the light source 81 is turned off. As a result, a worker performing the wire connection task can easily check whether the wires W1 and W2 from the DC power supply portion PE1 are connected to the first terminal 43A and the second terminal 43B having a predetermined polarity by checking whether the light source 81 is turned on. Therefore, the possibility of applying the DC voltage to the first conductive bar 32A and the second conductive bar 32B with the wrong polarity can be further reduced.

Note that, as shown in fig. 18, a light emitting diode as the light source 81 may also be connected between the first contact 44A and the second contact 44B with the cathode on the first contact 44A side and the anode on the second contact 44B side. In this case, when a DC voltage is applied to the first contact 44A and the second contact 44B such that the voltage of the second contact 44B is higher than the voltage of the first contact 44B, the light source 81 is lit. That is, the light source 81 is lit when the negative-side electric wire W2 is erroneously connected to the first terminal 43A and the positive-side electric wire W1 is erroneously connected to the second terminal 43B, so that a worker can easily confirm that erroneous connection of the electric wires W1 and W2 has occurred due to the fact that the light source 81 is lit. Further, if the wires W1 and W2 are connected to the first terminal 43A and the second terminal 43B with a predetermined polarity (if no erroneous connection occurs), the light source 81 is turned off, and thus there is also an advantage in that power consumption can be suppressed.

Note that, as shown in fig. 19, the power supply member 4 may also be provided with a first notification portion 80A and a second notification portion 80B as the notification portions 80.

The first notification portion 80A includes a resistor 82A and a light source 81A, which are connected between the first terminal 43A and the second terminal 43B. The light source 81A is, for example, a light emitting diode, and is connected between the first contact 44A and the second contact 44B with the anode on the first contact 44A side and the cathode on the second contact 44B side. The first notification portion 80A has a light source 81A that is turned on when the positive-side electric wire W1 is connected to the first terminal 43A and the negative-side electric wire W2 is connected to the second terminal 43B. The light source 81A of the first notification portion 80A is disposed on the surface of the power feeding member main body 42 near the electric wire insertion hole 423 corresponding to the first terminal 43A.

The second notification portion 80B includes a resistor 82B and a light source 81B, which are connected between the first terminal 43A and the second terminal 43B. The light source 81B is, for example, a light emitting diode, and is connected between the first contact 44A and the second contact 44B with the anode on the second contact 44B side and the cathode on the first contact 44A side. The second notification portion 80B has a light source 81B that is turned on when the second terminal 43B is connected to the positive-side wire W1 and the first terminal 43A is connected to the negative-side wire W2. The light source 81B of the second notification portion 80B is disposed on the surface of the power feeding member main body 42 near the electric wire insertion hole 423 corresponding to the second terminal 43B.

Therefore, if the power supply member 4 includes the first notification portion 80A and the second notification portion 80B, it is possible to check whether or not erroneous connection of the electric wire occurs according to which of the light source 81A of the first notification portion 80A and the light source 81B of the second notification portion 80B is lit.

Note that, as shown in fig. 20, it is not necessary that the notification portion 80 is provided on the power supply member 4, and the notification portion 80 may also be provided on the DC duct 3. The notification portion 80 shown in fig. 20 is configured to be lit when an electric wire having a polarity different from the predetermined polarity is erroneously connected to the first terminal 43A and the second terminal 43B, but it may also be configured to be lit when an electric wire of the predetermined polarity is connected. Further, the DC duct 3 may include a first notification portion 80A that is lighted when an electric wire of a predetermined polarity is connected to the first terminal 43A and the second terminal 43B, and a second notification portion 80B that is lighted when a misconnection of the electric wire occurs.

Further, the adapter 5A connected to the DC pipe 3 may include the notification portion 80, and thus it may be checked whether a DC voltage of a predetermined polarity is supplied to the adapter 5A.

Further, the power receiving device connectable to the DC pipe 3 may include an inspection device 9 (see fig. 21), the inspection device 9 including a notification portion 80. If the inspection device 9 is connected to the DC pipe 3 during the construction of the DC pipe 3, it is possible to check whether or not erroneous connection of the electric wire occurs by checking whether or not the light source 81 included in the notification portion 80 is lighted.

Further, the notification portion 80 is not limited to performing notification of the application state of the DC voltage to the first contact 44A and the second contact 44B by light, but may perform notification by sound. The notification portion 80 shown in fig. 22 includes a diode 83 and a buzzer circuit 84, which are connected between the first terminal 43A and the second terminal 43B. In the notification portion 80, when the positive-side electric wire W1 is connected to the second terminal 43B and the negative-side electric wire W2 is connected to the first terminal 43A, a current flows through the buzzer circuit 84 and a notification sound is output. Accordingly, a worker performing the wire connection task can check whether or not the erroneous connection of the wire has occurred based on whether or not the notification portion 80 emits the notification sound. Note that in the circuit shown in fig. 22, a light emitting diode may be used instead of the diode 83, and notification may be performed by light emission of the light emitting diode and sound emitted from the buzzer circuit 84.

(other variants)

In the above-described embodiment, the DC pipe 3 is provided with the protrusion 35 as the anti-connection structure, but the shape and position of the protrusion 35 may be changed appropriately. Further, it is also not necessary to provide the protrusions 35 as anti-connection structures over the entire DC pipe 3 in the length direction, and the anti-connection structures may be provided only at the first end 31A and the second end 31B of the DC pipe 3.

Some configurations of the DC piping system 100 may be provided independently of other configurations. For example, the DC pipe 3, the pipe fixing device F1, the first fixing portion 1, or the second fixing portion 2 (fixing member) may be provided independently of other configurations.

The number of single configurations shown in the first embodiment is an example, and there is no limitation on the number shown in the first embodiment. For example, the DC piping system 100 is not limited to having two DC pipes 3, but may have one or three or more DC pipes 3. Further, the DC piping system 100 is not limited to having two first fixing portions 1, but may have one or three or more first fixing portions 1. Further, the DC piping system 100 is not limited to having two second fixing parts 2, but may have one or three or more second fixing parts 2. Further, the separator system 200 is not limited to having three separators 6, but may have one, two, or four or more separators 6.

The plurality of DC pipes 3 may further include two or more DC pipes 3 arranged side by side in the up-down direction. Furthermore, the voltage of the conductive strip 32 may be different for each of the two or more DC pipes 3 described above. Furthermore, the standard of the adapter 5A that can be attached may be different for each of the two or more DC pipes 3 described above. For example, since the two or more DC pipes 3 described above have the recesses 3110 having different widths or depths, the shape of the adapter 5A that can be attached may be limited for each of the two or more DC pipes. Further, in the DC pipe 3, the positive-side first conductive strip 32A may be disposed on the lower side, and the negative-side second conductive strip 32B may be disposed on the upper side.

One first fixing portion 1 may fix two or more DC pipes 3 as well. Alternatively, two or more first fixing parts 1 may fix one DC pipe 3.

Two or more DC pipes 3 may be connectable in the length direction (left-right direction) thereof.

As the second fixing portion 2, it is also possible to prepare a second fixing portion 2 having a plurality of standards in which the lengths of the horizontal portions 21 are different. By replacing the second fixing part 2 with another second fixing part 2 of a different standard, the distance between the respective support parts 22 of the two second fixing parts 2 on both sides of the first fixing part 1 can be adjusted according to the length of the furniture (table 7).

The configuration of the second fixing portion 2 is not limited to the configuration in which it is fixed to furniture by the clamping mechanism 23. The second fixing part 2 can also be configured to be fixed to furniture, for example by a threaded connection. Furthermore, the first fixing portion 1 can also be used as the second fixing portion 2 by providing the first fixing portion with a component to be fixed to furniture by screw threads.

In the above-described embodiment, by replacing the adapter 5A with another adapter having a different output voltage for the connector 95, the voltage supplied to the electric device 94 can be easily changed.

Further, the connector 95 is not limited to a plug, and may be a socket (insertion port). The DC pipe 3 may also be connected to both a first adapter, which may be connected to a plug serving as the connector 95, and a second adapter, which may be connected to a socket serving as the connector 95. This allows for the handling of electrical devices 94 or cables having plugs or sockets. The first adapter and the second adapter may also share a configuration other than the connection portion with the connector 95.

(second embodiment)

The DC piping system 100 of the second embodiment will be described with reference to fig. 23. In the DC piping system 100 of the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The DC piping system 100 includes a DC piping 3 and a power supply member 4C. Since the construction of the DC pipe 3 is the same as that of the first embodiment, a description thereof is omitted. The power feeding member 4C is different from the power feeding member 4 of the first embodiment in that it includes the first connector 46 instead of the first terminal 43A and the second terminal 43B. The first connector 46 is, for example, a socket type connector. A plug-type second connector 97 provided on the electric wire W3 from a DC power source (e.g., AC adapter 96) outputting a DC voltage may be connected to the first connector 46. With the second connector 97 connected to the first connector 46, a DC voltage is applied from a DC power source (AC adapter 96) to the first contact 44A and the second contact 44B. Note that the power supply member 4C includes a right-end first power supply member connected to the first end 31A as the right end of the DC pipe 3, and a left-end second power supply member connected to the second end 31B as the left end of the DC pipe 3. The power feeding member 4C shown in fig. 23 is a left-end second power feeding member connected to the second end 31B of the DC pipe 3.

Since the DC pipe 3 of the second embodiment has a similar anti-connection structure as the first embodiment, the power supply member 4C can be connected only to a predetermined one of the first end 31A and the second end 31B of the DC pipe 3. Thus, when the power supply member 4C is connected to the DC pipe 3, the positive-side first contact 44A is connected to the positive-side first conductive strip 32A, and the negative-side second contact 44B is connected to the negative-side second conductive strip 32B. As a result, when the power feeding member 4C is connected to the DC pipe 3, the possibility that the positive-side first contact 44A will be erroneously connected to the negative-side second conductive strip 32B and the negative-side second contact 44B will be erroneously connected to the positive-side first conductive strip 32A can be reduced.

In the second embodiment, by connecting the second connector 97 provided on the electric wire W3 of the AC adapter 96 as the DC power supply portion to the first connector 46 of the power supply member 4C, erroneous connection at the time of connecting the power supply member 4C and the DC power supply portion is suppressed. Therefore, the possibility that the DC voltage having the wrong polarity will be applied to the first and second conductive bars 32A and 32B of the DC pipe 3 can be reduced.

Note that the shapes and the like of the first connector 46 and the second connector 97 may be appropriately changed.

(modification of the second embodiment)

The following lists variations of the second embodiment. The following variants can be realized in combination with one another where appropriate. Further, the following modifications can be realized in appropriate combination with the first embodiment.

(first modification)

The DC piping system 100 of the first modification will be described with reference to fig. 24 to 26.

The first connector 46 is not limited to being provided on the power feeding member main body 42, and as shown in fig. 24, the first connector 46A may be provided on an electric wire 47 led out from the power feeding member main body 42 of the power feeding member 4C.

Here, an example of a specific configuration of the power supply member 4C will be described with reference to fig. 25 and 26. Note that the power feeding member 4C shown in fig. 25 and 26 is a right-end first power feeding member connected to the first end 31A as the right end of the DC pipe 3, but the power feeding member 4C may be a left-end second power feeding member connected to the second end 31B as the left end of the DC pipe 3.

The power supply member 4C includes a housing 41, a power supply member main body 42, and two contacts 44 (including a first contact 44A and a second contact 44B).

The power feeding member main body 42 has a rectangular parallelepiped shape in which the dimension in the left-right direction is larger than the dimension in the front-rear direction and the dimension in the up-down direction. The power feeding member main body 42 has a rear side first block 421 and a front side second block 422. By joining the first block 421 and the second block 422 to each other with the screw 425, the power feeding member main body 42 is formed. The power supply member body 42 accommodates two contacts 44 (including a first contact 44A and a second contact 44B). One end of the power feeding member main body 42 in the left-right direction is inserted into the DC duct 3.

The shape of the outer case 41 is a C-shaped rectangular parallelepiped when viewed from the right. The outer case 41 is attached to the power supply member main body 42 using screws 426 to cover a portion of the power supply member main body 42 exposed from the DC duct 3.

In the power feeding member body 42, the electric wire 47 is led into the power feeding member body 42 from a second end opposite to the first end into which the DC pipe 3 is inserted. The wire 47 has two conductors 471 and 472, the conductor 471 being soldered to the first contact 44A and the conductor 472 being soldered to the second contact 44B.

The first connector 46A is connected to the electric wire 47. The first connector 46A is a bipolar connector.

The second connector 97 provided on the electric wire W3 of the AC adapter 96 is connected to the first connector 46A. Since the first connector 46A is provided with a structure that prevents it from being connected to the second connector 97 having the opposite polarity, the possibility that the first connector 46A will be erroneously connected to the second connector 97 during site construction can be reduced.

Further, the first connector 46A is connected to the power feeding member body 42 via the electric wire 47, and two conductors 471 and 472 of the electric wire 47 are connected to the first contact 44A and the second contact 44B in advance. Accordingly, if the first connector 46A of the power supply member 4 is connected to the second connector 97 of the AC adapter 96 at the construction site, the DC voltage is applied to the first conductive strip 32A and the second conductive strip 32B included in the DC pipe 3 with the correct polarity, and thus the possibility of erroneous construction at the construction site can be reduced.

Note that the first connector 46A shown in fig. 25 and 26 is an example, and may be modified as needed.

(second modification)

The DC piping system 100 of the second modification will be described with reference to fig. 27 to 33.

In the above-described first and second embodiments, the protrusion 35 as the connection preventing structure is provided on the rear surface of the DC pipe 3, but the connection preventing structure is not limited to being provided on the rear surface of the DC pipe 3. As long as the shape of the fitting portion of the DC pipe 3 into which the power feeding member 4 is fitted is asymmetric with respect to the center line L1, the connection preventing structure may be provided at a portion other than the rear surface inside the DC pipe 3.

Fig. 27 is a side view of the DC pipe 3 as seen from the right side.

The DC pipe 3 has a pipe body 31 and two conductive strips 32 (a first conductive strip 32A and a second conductive strip 32B).

The pipe body 31 includes a first rail 311 of metal and two second rails 312 of synthetic resin. On the upper surface of the first rail 311, an attachment groove 3112 to which the second rail 312 is mounted is provided on the rear side, and a fitting portion 3111 is provided on the front side. Similarly, the lower surface of the first rail 311 is provided with an attachment groove 3112, the second rail 312 is attached on the rear side in the attachment groove, and the fitting portion 3111 is on the front side.

Each of the two attachment grooves 3112 is provided with holding claws 3116 and 3117 for holding the second rail 312, and the second rail 312 is attached in the attachment groove 3112 as the holding claws 3116 and 3117 come into contact with corners of the second rail.

The two fitting portions 3111 are grooves, and the two rib portions 532 of the adapter 5A connected to the DC pipe 3 are inserted into the two fitting portions 3111. Further, two ribs 4211 and 4212 attached to the power supply member 4 of the DC duct 3 are inserted into the two fitting portions 3111. Of the two fitting portions 3111, the lower fitting portion 3112 is provided with a protrusion 3115 as an anti-connection structure.

The power supply member 4 comprises a first power supply member 4A attached to a first end 31A on the right side of the DC channel 3 and a second power supply member 4B attached to a second end 31B on the left side of the DC channel 3.

On the front portion of the power feeding member body 42 of the first power feeding member 4A, there are provided a rib 4211 protruding downward and a rib 4212 protruding upward when attached to the first end 31A of the DC link 3 (see fig. 28 to 30). Similarly, on the front portion of the power feeding member body 42 of the second power feeding member 4B, there are provided a rib 4211 protruding downward and a rib 4212 protruding upward when attached to the second end 31B of the DC duct 3 (see fig. 31 to 33). Each of the first power feeding member 4A and the second power feeding member 4B is provided with a recess 4213 on the rear surface of the rib 4211, and a protrusion 3115 provided on the fitting portion 3111 is inserted into the recess 4213.

Accordingly, when an attempt is made to attach the first power feeding member 4A to the second end 31B on the left side of the DC pipe 3, the downward-directed rib 4212 of the first power feeding member 4A is in contact with the protrusion 3115 of the fitting portion 3111, and thus the first power feeding member 4A can be prevented from being attached to the second end 31B. Further, when an attempt is made to attach the second power feeding member 4B to the first end 31A on the right side of the DC pipe 3, the rib 4212 of the second power feeding member 4B directed downward is in contact with the protrusion 3115 of the fitting portion 3111, and thus the second power feeding element 4B can be prevented from being attached to the first end 31A. Therefore, the possibility that the DC voltage is applied to the first conductive strip 32A and the second conductive strip 32B of the DC pipe 3 with the wrong polarity can be reduced.

Further, since the protrusion 3115 as the connection preventing structure is provided inside the fitting portion 3111, there is an advantage in that the protrusion 3115 is less likely to interfere when forming the holding claws 3116 and 3117, compared to the case where the protrusion 35 as the connection preventing structure is provided on the rear surface of the DC duct 3 as in the above-described embodiment.

Note that the anti-connection structure described in the second modification is also applicable to the DC piping system 100 of the first embodiment described above.

(third modification)

The power supply member 4 included in the DC piping system 100 of the third modification will be described with reference to fig. 34.

The power supply member 4 included in the DC piping system 100 of the third modification is different from the second modification in that it is directly connected to the AC adapter 96 via the electric wire 47.

Since the power supply member 4 is directly connected to the AC adapter 96 through the electric wire 47, a field connection connector is not required, and when the plug of the AC adapter 96 is connected to the power outlet, a DC voltage is supplied to the first conductive strip 32A and the second conductive strip 32B of the DC duct 3. Therefore, the possibility that the DC voltage is applied to the first conductive strip 32A and the second conductive strip 32B of the DC pipe 3 with the wrong polarity can be reduced.

(summarizing)

As described above, the DC piping system (100) of the first aspect includes the DC piping (3) and the power supply member (4). The DC pipe (3) holds a positive-side first conductive strip (32A) and a negative-side second conductive strip (32B) to which a DC voltage is to be applied. The power receiving device (5) that receives a DC voltage via the first and second conductive strips (32A, 32B) may be connected to the DC pipe (3) at any position in the length direction of the first and second conductive strips (32A, 32B). The power supply member (4) has a first contact (44A) connectable to the first conductive strip (32A) and a second contact (44B) connectable to the second conductive strip (32), and is connected to one end of the DC pipe (3) in the length direction. The other end of the DC pipe (3) in the length direction is provided with a connection prevention structure (35, 3115) that prevents the power supply member (3) from being connected to the other end of the DC pipe (4) by being in contact with at least a part of the power supply member (4). The power supply member (4) has a first terminal (43A), a second terminal (43B), and a power supply member main body (42) that holds the first terminal (43A) and the second terminal (43B). The first terminal (43A) is electrically connected to the first contact (44A) and is connectable to a positive-side wire (W1) of a DC power supply section (PE 1) that outputs a DC voltage. The second terminal (43B) is electrically connected to the second contact (44B) and is connectable to a negative-side wire (W2) of the DC power supply section (PE 1). The power supply member main body (42) is provided with polarity display portions (M1, M2) that display polarities of the first terminal (43A) and the second terminal (43B).

According to this aspect, the possibility of applying a DC voltage to the first conductive strip (32A) and the second conductive strip (32) with wrong polarity can be reduced.

The DC piping system (100) of the second aspect comprises a DC piping (3) and a power supply member (4). The DC pipe (3) holds a positive-side first conductive strip (32A) and a negative-side second conductive strip (32B) to which a DC voltage is to be applied. The power receiving device (5) that receives a DC voltage via the first and second conductive strips (32A, 32B) may be connected to the DC pipe (3) at any position in the length direction of the first and second conductive strips (32A, 32B). The power supply member (4) has a first contact (44A) connectable to the first conductive strip (32A) and a second contact (44B) connectable to the second conductive strip (32B), and is connected to one end of the DC pipe (3) in the length direction. The other end of the DC duct (3) in the length direction is provided with a connection preventing structure (35, 3115) that prevents connection of the power feeding member (3) with the other end of the DC duct (4) by being in contact with at least a part of the power feeding member (4). The power supply member (4) has first connectors (46, 46A). A second connector (97) provided on an electric wire (W3) from a DC power supply portion (PE 1) outputting a DC voltage is connectable to the first connector (46, 46A). When the second connector (97) is connected to the first connector (46, 46A), a DC voltage is applied from the DC power supply portion (PE 1) to the first contact (44A) and the second contact (44B).

According to this aspect, the possibility of applying a DC voltage to the first conductive strip (32A) and the second conductive strip (32B) with wrong polarity can be reduced.

In a DC piping system (100) of a third aspect in the second aspect, a power supply member (4) has a power supply member body (42) holding a first contact (44A) and a second contact (44B). The first connector (46A) is provided on an electric wire (47) led out from the power feeding member main body (42). The first connector (46A) is electrically connected to the first contact (44A) and the second contact (44B) via an electric wire (47).

According to this aspect, the possibility of applying a DC voltage to the first conductive strip (32A) and the second conductive strip (32B) with wrong polarity can be reduced.

In the DC piping system (100) of the fourth aspect in any one of the first to third aspects, the DC piping (3) is provided with an anti-connection structure (35, 3115) on the entirety of the first conductive strip (32A) and the second conductive strip (32B) in the length direction.

According to this aspect, even if the DC pipe (3) is cut to an appropriate size, the connection preventing structures (35, 3115) can be provided at both ends in the length direction of the DC pipe (2).

In the DC piping system (100) of the fifth aspect in any one of the first to fourth aspects, the anti-connection structure (35, 3115) includes a protrusion (35, 3115) provided on the DC piping (3). When the DC pipe (3) is viewed from the longitudinal direction, the shape of the fitting portion of the DC pipe (4) into which the power feeding member (4) is fitted is asymmetric with respect to the center line (L1) of the DC pipe (3) in a direction orthogonal to the longitudinal direction and the direction in which the power receiving device (5) is attached to the DC pipe (1).

According to this aspect, the possibility of the power feeding member (4) being erroneously attached to the end opposite to the predetermined end can be reduced.

In the DC piping system (100) of the sixth aspect in any one of the first to fifth aspects, the power supply member (4) includes a first power supply member (4A) and a second power supply member (4B). The first power supply member (4A) is connected to a first end (31A) of the first end (31A) and the second end (31B) of the DC pipe (3) in the length direction, and the second power supply member (4B) is connected to the second end (31B). The connection preventing structure (35, 3115) prevents the first power feeding member (4A) from being connected to the second end (31B), and prevents the second power feeding member (4B) from being connected to the first end (31A).

According to this aspect, it is possible to prevent the first power feeding member (4A) from being erroneously connected to the second end (31B), and to prevent the second power feeding member (4B) from being erroneously connected to the first end (31A).

In the DC piping system (100) of the seventh aspect of any one of the first to sixth aspects, the DC piping system further includes a notification portion (80) configured to perform notification of an application state of the DC voltage of the first contact (44A) and the second contact (44B).

According to this aspect, when the DC voltage is applied to the first conductive bar (32A) and the second conductive bar (32B) with the wrong polarity, the worker can confirm the construction error based on the notification content notified by the notification portion (80). Therefore, the possibility of applying a DC voltage to the first conductive bar (32A) and the second conductive bar (32B) with wrong polarity can be reduced.

In the DC piping system (100) of the eighth aspect in the seventh aspect, the notification portion (80) includes a light source (81). When a DC voltage is applied to the first contact (44A) and the second contact (44B) such that the voltage of the second contact (44B) is higher than the voltage of the first contact (44A), the light source (81) is lit.

According to this aspect, since the light source (81) is lighted, the worker can confirm that the DC voltage is being applied to the first conductive strip (32A) and the second conductive strip (32B) with the wrong polarity. If a DC voltage is applied to the first conductive strip (32A) and the second conductive strip (32B) with the correct polarity, the light source (81) is turned off, and thus power consumption can be reduced.

The DC pipe (3) of the ninth aspect is the DC pipe (3) included in the DC pipe system (100) of any one of the first to eighth aspects.

According to this aspect, the possibility that the DC voltage is applied to the first conductive strip (32A) and the second conductive strip (32B) of the DC pipe (3) with wrong polarity can be reduced.

The power feeding member (4) of the tenth aspect is the power feeding member (4) included in the DC piping system (100) of any one of the first to eighth aspects.

According to this aspect, the possibility of applying a DC voltage with a wrong polarity to the first conductive strip (32A) and the second conductive strip (32B) of the DC pipe (3) to which the power supply member (4) is connected can be reduced.

The power supply system (PS 1) of the eleventh aspect includes the DC piping system (100) of any one of the first to eighth aspects and the DC power supply portion (PE 1). The DC power supply section (PE 1) converts an AC voltage input from an AC power supply (91) into a DC voltage, and outputs the DC voltage to the power supply member (4).

According to this aspect, the possibility of applying a DC voltage to the first conductive strip (32A) and the second conductive strip (32B) with wrong polarity can be reduced.

The configuration according to the second to eighth aspects is not necessary for the DC piping system (100), and may be omitted as appropriate. Further, the ninth and tenth aspects are aspects that can be independently implemented, and can be applied to the DC piping system (100) of any one of the first to eighth aspects.

[ list of reference numerals ]

3DC pipeline

4 Power supply member

4A first power supply member

4B second power supply member

5 powered device

31A first end

31B second end

32A first conductive strip

32B second conductive strip

35. 3115 projection (connection prevention structure)

42. Power supply member main body

43A first terminal

43B second terminal

44A first contact

44B second contact

46. First connector

80. Notification section

81. Light source

91 AC power supply

97. Second connector

100 DC pipeline system

PE1 DC power supply section

L1 center line

M1, M2 marks (polarity display portion)

PS1 power supply system

W1 to W3 wires.

Claims (11)

1. A DC plumbing system, comprising:

a DC pipe that holds a positive-side first conductive bar and a negative-side second conductive bar to which a DC voltage is to be applied; a power receiving device that receives a supply of a DC voltage via the first and second conductive strips and is connectable to the DC pipe at any position in a length direction of the first and second conductive strips; and

a power supply member having a first contact connectable to the first conductive bar and a second contact connectable to the second conductive bar, and connected to one end of the DC pipe in the length direction, wherein

The other end of the DC duct in the length direction is provided with a connection preventing structure that prevents the power supplying member from being connected to the other end of the DC duct by being in contact with at least a portion of the power supplying member,

the power supply member includes:

a first terminal to which a positive-side wire of a DC power supply portion that outputs a DC voltage can be connected, the first terminal being electrically connected to the first contact;

A second terminal electrically connected to the second contact, and to which a negative-side wire of the DC power supply portion is connectable; and

a power feeding member body that holds the first terminal and the second terminal, and

the power supply member main body is provided with a polarity display portion that displays polarities of the first terminal and the second terminal.

2. A DC plumbing system, comprising:

a DC pipe that holds a positive-side first conductive bar and a negative-side second conductive bar to which a DC voltage is to be applied; a power receiving device that receives a supply of a DC voltage via the first and second conductive strips and is connectable to the DC pipe at any position in a length direction of the first and second conductive strips; and

a power supply member having a first contact connectable to the first conductive bar and a second contact connectable to the second conductive bar, and connected to one end of the DC pipe in the length direction, wherein

The other end of the DC duct in the length direction is provided with a connection preventing structure that prevents the power supplying member from being connected to the other end of the DC duct by being in contact with at least a portion of the power supplying member,

The power supply member has a first connector,

a second connector provided on an electric wire from a DC power supply portion outputting a DC voltage can be connected to the first connector, and

when the second connector is connected to the first connector, a DC voltage is applied from the DC power supply portion to the first contact and the second contact.

3. The DC piping system of claim 2, wherein

The power supply member includes a power supply member body that holds the first contact and the second contact,

the electric wire led out from the power supply member main body is provided with the first connector, and

the first connector is electrically connected to the first contact and the second contact via the electric wire.

4. A DC plumbing system according to any one of claims 1 to 3, wherein the DC plumbing is provided with the anti-connection structure over the entirety of the first and second conductive strips in the length direction.

5. The DC piping system according to any one of claims 1 to 4, wherein

The connection preventing structure includes a protrusion provided on the DC pipe, and

when the DC pipe is viewed from a length direction, a shape of a fitting portion into which the power feeding member of the DC pipe is fitted is asymmetric with respect to a center line of the DC pipe in a direction perpendicular to both the length direction and a direction in which the power receiving device is attached to the DC pipe.

6. The DC piping system according to any one of claims 1 to 5, wherein

The power supply member includes a first power supply member connected to the first end of the DC pipe in the length direction and the first end of the second end, and a second power supply member connected to the second end, and

the connection preventing structure prevents the first power supplying member from being connected to the second end and prevents the second power supplying member from being connected to the first end.

7. The DC piping system according to any one of claims 1 to 6, further comprising a notification portion that performs notification of the application states of the DC voltages of the first contact and the second contact.

8. The DC piping system according to claim 7, wherein the notification portion includes a light source that lights up in a state in which a DC voltage is applied to the first contact and the second contact so that the voltage of the second contact is higher than the voltage of the first contact.

9. A DC pipe comprised in the DC pipe system according to any one of claims 1 to 8.

10. A power supply member included in the DC piping system according to any one of claims 1 to 8.

11. A power supply system, comprising:

the DC piping system according to any one of claims 1 to 8; and

an AC voltage input from an AC power source is converted into a DC voltage and the DC voltage is output to the DC power source portion of the power supply member.