JP7383329B2 - DC duct system, DC duct, power supply components and power supply system - Google Patents

Description

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

Patent Document 1 discloses a wiring duct system including a wiring duct (DC duct) that accommodates a pair of conductors (a first conductive bar and a second conductive bar) for supplying AC power. The wiring duct system supplies AC power to electrical equipment connected to the wiring duct.

In recent years, there has been a desire to supply DC power to electrical equipment through wiring ducts, and in this case, it is necessary to apply DC voltage with correct polarity to a pair of conductors included in the wiring duct.

Japanese Patent Application Publication No. 2010-200499

An object of the present disclosure is to provide a DC duct system, a DC duct, a power supply member, and a power supply system that reduce the possibility that a DC voltage is applied with wrong polarity to a first conductive bar and a second conductive bar. It is.

A DC duct system according to one aspect of the present disclosure includes a DC duct and a power feeding member. The DC duct holds a first conductive bar on the positive side and a second conductive bar on the negative side to which a DC voltage is applied. A power receiving device that receives DC voltage via the first conductive bar and the second conductive bar is connected to the DC duct at any position in the length direction of the first conductive bar and the second conductive bar. It is possible. The power supply member has a first contact that is connectable to the first conductive bar and a second contact that is connectable to the second conductive bar, and is provided at one end of the DC duct in the length direction. Connected. A connection blocker is provided at the other end of the DC duct in the length direction, and prevents connection of the power supply member to the other end of the DC duct by contacting at least a portion of the power supply member. A structure is provided. The power supply member includes a first terminal, a second terminal, and a power supply member main body that holds the first terminal and the second terminal. An electric wire on the positive side of a DC power supply unit that is electrically connected to the first contact and outputs a DC voltage can be connected to the first terminal. The second terminal is electrically connected to the second contact, and an electric wire on the negative electrode side of the DC power supply section can be connected to the second terminal. The power supply member main body is provided with a polarity display section that displays the polarity of the first terminal and the second terminal.

A DC duct system according to one aspect of the present disclosure includes a DC duct and a power feeding member. The DC duct holds a first conductive bar on the positive side and a second conductive bar on the negative side to which a DC voltage is applied. The DC duct includes a power receiving device that receives DC voltage through the first conductive bar and the second conductive bar at any position in the length direction of the first conductive bar and the second conductive bar. Connectable. The power supply member has a first contact that is connectable to the first conductive bar and a second contact that is connectable to the second conductive bar, and is provided at one end of the DC duct in the length direction. Connected. A connection blocker is provided at the other end of the DC duct in the length direction, and prevents connection of the power supply member to the other end of the DC duct by contacting at least a portion of the power supply member. A structure is provided. The power supply member has a first connector. A second connector provided on an electric wire from a DC power supply unit that outputs DC voltage can be connected to the first connector. With the second connector connected to the first connector, a DC voltage is applied from the DC power supply to the first contact and the second contact.

A DC duct according to one aspect of the present disclosure is a DC duct included in the above DC duct system.

A power feeding member according to one aspect of the present disclosure is a power feeding member included in the above DC duct system.

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

FIG. 1 is a perspective view showing a state before a first power feeding member is connected to a first end of a DC duct included in the DC duct system according to the first embodiment. FIG. 2A is a side view of the DC duct seen from the left side. FIG. 2B is a side view of the DC duct seen from the right side. FIG. 3 is a rear view showing a state before the power supply member is connected to the DC duct same as above. FIG. 4 is a perspective view showing a state before the second power feeding member is connected to the second end of the DC duct same as above. FIG. 5 is a perspective view showing a state in which the second power supply member is connected to the first end of the DC duct same as above. FIG. 6 is an exploded perspective view of the main parts of the DC duct system. FIG. 7 is a schematic perspective view showing a state before the electric wires of the DC power supply section are connected to the DC duct system as described above. FIG. 8 is an exploded perspective view of the main parts of the DC duct system. FIG. 9 is a perspective view of a table provided with the DC duct system same as above. FIG. 10A is a sectional view of the DC duct and power supply member seen from above. FIG. 10B is an enlarged view of section C1 in FIG. 10A. FIG. 11 is an explanatory diagram of a procedure for attaching an adapter to the DC duct system same as above. FIG. 12 is an explanatory diagram of a procedure for attaching an adapter to the DC duct system same as above. FIG. 13 is a side sectional view of the DC duct system and adapter same as above. FIG. 14 is a block diagram showing a configuration example of a system that supplies power to a plurality of electrical devices using the DC duct system mentioned above. FIG. 15 is a perspective view of a desk equipped with a DC duct system according to Modification 1 of Embodiment 1. FIG. 16 is a schematic circuit diagram of a DC duct system according to a second modification of the first embodiment. FIG. 17 is a front view of the DC duct system same as above. FIG. 18 is a schematic circuit diagram of the above DC duct system. FIG. 19 is a schematic circuit diagram of the above DC duct system. FIG. 20 is a schematic circuit diagram of the above DC duct system. FIG. 21 is a schematic circuit diagram of the DC duct system same as above. FIG. 22 is a schematic circuit diagram of the above DC duct system. FIG. 23 is a schematic perspective view of a state before the DC duct system and the DC power supply section of the second embodiment are connected. FIG. 24 is a schematic perspective view illustrating a method of connecting the DC duct system and the DC power supply unit according to Modification 1 of Embodiment 2. FIG. 25 is an external perspective view of a power supply member included in the DC duct system according to Modification 1 of Embodiment 2. FIG. 26 is an exploded perspective view of a power supply member included in the DC duct system. FIG. 27 is a side view of the DC duct included in the DC duct system according to Modification 2 of Embodiment 2, viewed from the right. FIG. 28 is an external perspective view of the first power feeding member included in the DC duct system. FIG. 29 is a rear view of the first power feeding member included in the DC duct system. FIG. 30 is a cross-sectional view of the first power feeding member included in the DC duct system described above connected to the DC duct. FIG. 31 is an external perspective view of the second power supply member included in the DC duct system. FIG. 32 is a rear view of the second power supply member included in the DC duct system. FIG. 33 is a cross-sectional view of the second power supply member included in the DC duct system described above connected to the DC duct. FIG. 34 is an external perspective view of a power supply member included in the DC duct system according to the third modification of the second embodiment.

In each embodiment below, a DC duct system of the present disclosure, a DC duct and a power supply member included in the DC duct system, and a power supply system will be described using drawings. However, each embodiment described below is only a part of various embodiments of the present disclosure. Each of the embodiments described below can be modified in various ways depending on the design, etc., as long as the objective of the present disclosure can be achieved. Furthermore, each of the drawings described in each of the embodiments below is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual size ratio. do not have. Furthermore, the following embodiments (including modified examples) may be realized by appropriately combining them.

(Embodiment 1)
(overview)
The DC duct system 100 of this embodiment includes a DC duct 3 and a power supply member (so-called feed-in) 4, as shown in FIG.

The DC duct 3 holds a first conductive bar 32A on the positive side and a second conductive bar 32B on the negative side, to which a DC voltage is applied. A power receiving device 5 (see FIG. 14) can be connected to the DC duct 3 at any position in the length direction of the first conductive bar 32A and the second conductive bar 32B. The power receiving device 5 is a device that receives DC voltage via the first conductive bar 32A and the second conductive bar 32B.

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

A connection prevention structure (eg, protrusion 35) is provided at the other end of the DC duct 3 in the length direction (the end opposite to the end to which the power supply member 4 is connected). The connection prevention structure (protrusion 35) prevents the connection of the power supply member 4 to the other end of the DC duct 3 by contacting at least a portion of the power supply member 4 (for example, the protrusion 45 provided on the power supply member main body 42). to prevent

As shown in FIG. 8, the power supply member 4 includes a first terminal 43A, a second terminal 43B, and a power supply member main body 42. The first terminal 43A is electrically connected to the first contact 44A, and can be connected to a positive electrode side electric wire W1 of a DC power supply unit PE1 (see FIG. 14) that outputs a DC voltage. The second terminal 43B is electrically connected to the second contactor 44B, and can be connected to the negative electrode side electric wire W2 of the DC power supply unit PE1. The power supply member main body 42 holds a first terminal 43A and a second terminal 43B. The power feeding member main body 42 is provided with a polarity display section (marks M1, M2) that displays the polarity of the first terminal 43A and the second terminal 43B.

In addition, in the following description, the first conductive bar 32A and the second conductive bar 32B may be collectively referred to as the conductive bar 32. Further, the first contact 44A and the second contact 44B may be collectively referred to as a contact 44.

The power receiving device 5 connected to the DC duct 3 includes an adapter 5A (see FIGS. 6 and 11 to 14). The adapter 5A has a connector to which a connector 95 provided on an electric wire of an electric device 94 can be connected. When the adapter 5A is connected to the DC duct 3, the adapter 5A is supplied with DC voltage via the first conductive bar 32A and the second conductive bar 32B of the DC duct 3. When the connector 95 provided on the electric wire of the electrical device 94 is connected to the connector of the adapter 5A, a DC voltage is supplied from the DC duct 3 to the electrical device 94 via the adapter 5A. The type of electrical equipment 94 is not particularly limited. Examples of the electrical equipment 94 include computer terminals (personal computers, smartphones, tablet terminals, etc.), accessory devices for computer terminals (monitors, speakers, microphones, etc.), lighting equipment (desk lights, etc.), network cameras, sensors (temperature sensors, etc.). , humidity sensors, illuminance sensors, etc.), game consoles, and air conditioners (desktop fans, etc.). Note that the power receiving device 5 is not limited to the adapter 5A, and may be the electrical device 94 itself. By connecting the electric device 94, which is the power receiving device 5, to the DC duct 3, the electric device 94 can receive the supply of DC voltage from the DC duct 3. Note that when the power receiving device 5 is connected to an arbitrary position in the length direction of the first conductive bar 32A and the second conductive bar 32B, it means that the power receiving device 5 is connected to an arbitrary position in the length direction of the first conductive bar 32A and the second conductive bar 32B. It may include being electrically connected to the first conductive bar 32A and the second conductive bar 32B while being disposed at an arbitrary position in the mounting area.

Since the power supply member main body 42 is provided with polarity display parts (marks M1, M2), when connecting the electric wires W1, W2 of the DC power supply part PE1 to the first terminal 43A and the second terminal 43B, respectively, the first It is possible to reduce the possibility of making a mistake in the polarity of the electric wires connected to the terminal 43A and the second terminal 43B. Further, since the DC duct 3 is provided with a connection prevention structure at the other end in the longitudinal direction, the possibility of connecting the power supply member 4 to the other end of the DC duct 3 by mistake can be reduced. Therefore, the power feeding member 4 can be reliably connected to one end of the DC duct 3, and the first conductive bar 32A and the second conductive bar 32A are connected to each other so that the first conductive bar 32A is on the positive side and the second conductive bar 32B is on the negative side. A DC voltage can be applied to the conductive bar 32B. Therefore, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar 32A and the second conductive bar 32B.

Here, the DC duct system 100 includes a DC duct 3 and a power supply member 4. In other words, the DC duct 3 is a DC duct included in (applied to) the DC duct system 100. Moreover, the power supply member 4 is a power supply member with which the DC duct system 100 is provided (applied).

Further, the DC duct system 100 constitutes a power supply system PS1 together with a DC power supply unit PE1. The DC power supply unit 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 above-mentioned DC duct system 100, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar 32A and the second conductive bar 32B. .

In addition to the DC duct 3 described above, the DC duct system 100 of this embodiment further includes a duct fixture F1 (FIG. 9). The duct fixture F1 has a first fixing part 1 to which the DC duct 3 is fixed, and a second fixing part 2 to which the fixture (desk 7) is fixed.

Thereby, in the DC duct system 100 of this embodiment, the DC duct 3 can be fixed to the fixture via the duct fixing device F1. Then, 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 duct 3 to the electrical device 94. Therefore, the wiring around the fixtures is simpler than when power is supplied to the electrical equipment 94 from a power outlet or when power is supplied to the electrical equipment 94 from a power tap that distributes the power from the power outlet. be converted into In other words, it is possible to reduce the possibility that the electric wires of the electric equipment 94 will be mixed up around the fixture, and that the electric wires will become disordered, and the electric wires around the fixture can be simplified.

Here, the fixtures to which the DC duct system 100 is fixed is a general term for appliances such as furniture and fixtures used in homes or non-residents. Examples of fixtures are desks, tables, workbenches, etc. that are used as platforms on which things are placed. Other examples of fixtures include shelves, boxes, dressers, beds, whiteboards, screens, partitions, and chaise lounges. Below, the case where the DC duct system 100 is used while being fixed to the desk 7 as a fixture will be explained as an example. As shown in FIG. 9, the desk 7 includes a top plate 71 that is rectangular in plan view, two legs 72, and two support stands 73. In the following description, the direction along the longitudinal direction of the DC duct 3 is defined as the left-right direction. Further, the direction along the direction in which the power receiving device 5 is attached to and removed from the DC duct 3 is defined as the front-back direction, and the direction orthogonal to the left-right direction and the front-back direction, respectively, is defined as the up-down direction. In addition, the side where the adapter 5A is attached to the DC duct 3 is the front side, and when looking at the DC duct 3 from the front, the right end of the DC duct 3 is called a first end 31A, and the left end is called a second end 31B. stipulate. However, these directions are not intended to limit the direction in which the DC duct system 100 is used. Furthermore, the arrows representing front and rear, left and right, and top and bottom in FIG.

Further, the DC duct system 100 of this embodiment includes a partition fixing structure S1 (see FIGS. 11 and 12) that can fix the partition 6 (see FIG. 9). A "partition" is also called a partition or a screen. Partition system 200 includes DC duct system 100 and partition 6. In this embodiment, the number of partitions 6 included in one partition system 200 is three.

Partition 6 is fixed above top plate 71. Thereby, the space above the top plate 71 is partitioned into two spaces with the partition 6 in between. Some people (hereinafter referred to as "first people") are seated on one side of desk 7, and some other people (hereinafter referred to as "second people") are seated on the other side of desk 7. When seated, a partition 6 exists between the first and second person. Thereby, droplets scattered when the first person speaks, sneezes, coughs, etc. can be suppressed from falling on the second person. Similarly, droplets scattered when the second person speaks, sneezes, or coughs can be prevented from coming into contact with the first person.

(detail)
(1) DC Duct System Hereinafter, the DC duct system 100 and the configuration used together with the DC duct system 100 will be described in more detail.

As shown in FIGS. 1 to 4 and FIG. 6, the DC duct system 100 includes two (only one shown in FIGS. 1 and 4) DC ducts 3 and two (one shown in FIGS. 1 and 4). The power feeding member 4 (so-called feed-in) (only shown in the figure) and two (only one shown in FIG. 6) end caps CP1 are provided. The duct fixture F1 has two first fixing parts 1 and two second fixing parts 2. The two first fixing parts 1 correspond to the two DC ducts 3 on a one-to-one basis. Each first fixing part 1 fixes a corresponding DC duct 3. One of the two second fixing parts 2 fixes one end of the two first fixing parts 1 in the longitudinal direction to the desk 7, and the other of the two second fixing parts 2 fixes one end of the two first fixing parts 1 to the desk 7. The other ends in the longitudinal direction are each fixed to the desk 7.

Moreover, the configuration used with the DC duct system 100 includes one or more adapters 5A (see FIGS. 6 and 13), three partitions 6, and a desk 7.

(2) Desk As shown in FIG. 9, the desk 7 includes a top plate 71 that is rectangular in plan view, two legs 72, and two support stands 73. One of the two legs 72 protrudes downward from near the right end of the top plate 71, and the other projects downward from near the left end of the top plate 71. The two support stands 73 correspond to the two leg parts 72 on a one-to-one basis. Each support stand 73 is connected to the lower end of the corresponding leg part 72 and supports the leg part 72.

(3) First Fixing Part As shown in FIG. 10A, the two first fixing parts 1 are lined up one after the other and are fitted together. As shown in FIG. 6, each of the two first fixing parts 1 includes a duct storage part 11 and two connecting protrusions 12. The duct storage portion 11 and the two connecting protrusions 12 are integrally formed.

The shape of the duct storage portion 11 is a rectangular parallelepiped. The duct storage section 11 has a length in the left-right direction. One of the two connecting protrusions 12 protrudes from the right end of the duct storage part 11, and the other protrudes from the left end of the duct storage part 11. The duct storage section 11 stores the DC duct 3, that is, the duct body (so-called duct rail) 31 of the DC duct 3. Further, the duct storage section 11 also stores the power supply member 4. Each of the two connecting protrusions 12 is configured to connect the first fixing part 1 to the second fixing part 2. Here, the two DC ducts 3 held by the two first fixing parts 1 each have a power feeding member 4 attached to one end in the length direction of the first fixing part 1 . In this 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 which 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 the second end 31B, which is the left end of the DC duct 3. That is, the power feeding member 4 is connected to the first power feeding member 4A connected to the first end 31A and the second end 31B of the first end 31A and the second end 31B of the DC duct 3 in the length direction. A second power supply member 4B is included.

Each first fixing part 1 has a storage groove 130 and two wire grooves 140. The storage groove 130 stores the DC duct 3 and the power supply member 4. Electric wires W1 and W2 (see FIGS. 10A and 10B) electrically connected to the DC duct 3 are passed through the wire groove 140.

The storage groove 130 is provided in the duct storage section 11. The storage groove 130 is formed along the length direction (left-right direction) of the duct storage portion 11. In each of the two first fixing parts 1, a storage groove 130 is opened on the outward surface.

The two wire grooves 140 correspond to the two connecting protrusions 12 on a one-to-one basis. Each wire passage groove 140 is provided across the corresponding connection protrusion 12 and duct storage portion 11 . That is, the wire passage grooves 140 are provided at the right end and the left end of the first fixing portion 1, respectively. Each wire passage groove 140 is formed along the length direction (left-right direction) of the duct storage part 11. A wire passage groove 140 is opened in each of the two first fixing parts 1 on an inward surface.

By combining the two first fixing parts 1, the wire passage grooves 140 at the right ends of each of the two first fixing parts 1 come together to form one space (see FIG. 10A), and the two first fixing parts 1 The wire passage grooves 140 at the left end of each fixed part 1 are combined to form another space. Each wire passage groove 140 is connected to the storage groove 130. The electric wires W1 and W2 passed through the wire groove 140 are electrically connected to the first terminal 43A and the second terminal 43B (see FIGS. 8, 10A, and 10B) of the power supply member 4 housed in the housing groove 130. be done. The electric wire W1 on the positive electrode side is electrically connected to the first conductive bar 32A of the DC duct 3 via the first terminal 43A, and the electric wire W2 on the negative electrode side is electrically connected to the first conductive bar 32A of the DC duct 3 via the second terminal 43B. It is electrically connected to the second conductive bar 32B.

Moreover, each of the two first fixing parts 1 has a part of the partition fixing structure S1, as shown in FIG. That is, each of the two first fixing parts 1 has four (only two are shown in FIG. 6) depressions 150. Four depressions 150 are provided in the duct storage section 11. In each of the two first fixing parts 1, a recess 150 is provided on the inward surface of the duct storage part 11. Each depression 150 is provided from the upper end to the lower end of the duct storage section 11.

By combining the two first fixing parts 1, the four depressions 150 of each of the two first fixing parts 1 come together, forming four gaps between the two first fixing parts 1. These four gaps each correspond to the partition fixing structure S1. More specifically, each partition fixing structure S1 is a through hole that vertically penetrates the structure in which the two first fixing parts 1 are combined.

The four partition fixing structures S1 are lined up in the left-right direction. The four partition fixing structures S1 correspond one-to-one with the four fitting protrusions belonging to the three partitions 6 (6A, 6B, 6C). A corresponding fitting protrusion is inserted into each partition fixing structure S1. Thereby, each partition 6 is fixed to the two first fixing parts 1, that is, the DC ducts 3.

(4) Second Fixing Part As shown in FIGS. 6 and 9, each of the two second fixing parts 2 includes a horizontal frame part 21, a support part 22, and a clamp mechanism 23. The horizontal frame portion 21 and the support portion 22 are integrally formed. The two second fixing parts 2 are structures (fixing members) for fixing the duct main body 31 to the fixture (desk 7). More specifically, the two second fixing parts 2 are used together with the two first fixing parts 1 to fix the duct main body 31 to the fixture (desk 7).

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

The two second fixing parts 2 correspond one-to-one with the two connecting protrusions 12 provided at both ends of the two first fixing parts 1 in the left-right direction. A corresponding connecting protrusion 12 of the two connecting protrusions 12 provided in each of the two first fixing parts 1 is inserted into the horizontal frame part 21 of each second fixing part 2 . Furthermore, the two first fixing parts 1 are screwed to the two second fixing parts 2, respectively. Thereby, the two first fixing parts 1 are connected to the two second fixing parts 2. That is, the two first fixing parts 1 are connected to the two second fixing parts 2 so as to bridge between the two second fixing parts 2. Moreover, each of the two first fixing parts 1 is separable from the two second fixing parts 2. That is, by removing the screws connecting the two first fixing parts 1 and the two second fixing parts 2 and pulling out each connecting protrusion 12 from the horizontal frame part 21, each of the two first fixing parts 1 can be connected to the second fixing part 1. It can be separated from the two second fixing parts 2.

The shape of the support column 22 is cylindrical. The axial direction of the support column 22 is along the up-down direction. The horizontal frame portion 21 projects from the upper end of the column portion 22 in the left-right direction. The internal space of the horizontal frame part 21 is connected to the internal space of the support column part 22 to form one internal space SP1 (see FIG. 10A). A total of four electric wires W1 and W2, two each connected to the two power supply members 4, are passed through the internal space SP1. That is, the second fixing part 2 (fixing member) has an internal space SP1 through which the electric wires W1 and W2 electrically connected to the first conductive bar 32A and the second conductive bar 32B (see FIG. 1) are passed. are doing.

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

The clamp mechanism 23 is fixed to the desk 7 (fixture) by sandwiching a part (for example, the top plate 71) of the desk 7 (fixture). More specifically, one of the two second fixing parts 2 sandwiches one end of the top plate 71 in the length direction, and the other of the two second fixing parts 2 holds the other end of the top plate 71 in the length direction. Pinch the ends. Thereby, the DC duct system 100 is fixed to the desk 7 (fixture).

The clamp mechanism 23 includes a movable part 231, a base 232, and an operating part 233.

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

The movable part 231 is arranged on the base 232. A part of the movable part 231 is arranged inside the wire passage hole 220 of the support column 22.

The operation section 233 receives an operation for moving the movable section 231 up and down. The operating section 233 is a lever, and when the operator turns the operating section 233, the movable section 231 moves up and down.

Hereinafter, a procedure for fixing the DC duct system 100 to the desk 7 using the clamp mechanism 23 will be described. As shown in FIG. 9, a part (left end or right end) of the top plate 71 of the desk 7 is inserted into the wire hole 220. As a result, a portion (the left end or the right end) of the top plate 71 is arranged between the support section 22 and the movable section 231. The operator turns the operating section 233 and moves the movable section 231 upward. As a result, a part (left end or right end) of the top plate 71 is sandwiched between the support section 22 and the movable section 231. The DC duct system 100 is fixed to the desk 7 by sandwiching the left and right ends of the top plate 71 using the clamp mechanisms 23 of each of the two second fixing parts 2 .

Further, due to the presence of the support portions 22, a gap G1 (see FIG. 9) is secured between the two first fixing portions 1 of the DC duct system 100 and the top plate 71 of the desk 7. That is, a gap G1 is secured between the two duct bodies 31 fixed to the two first fixing parts 1 and the top plate 71. In other words, the second fixing portion 2 (fixing member) includes the support portion 22 that supports the two duct bodies 31 with a gap G1 between the two duct bodies 31 and the desk 7 (fixture).

In the present disclosure, the presence of a gap between the duct body 31 and the desk 7 (fixture) means that there is a gap between the duct body 31 and the desk 7 (a part of the first fixing part 1), as in the present embodiment. ), including a case where there is a gap G1 extending from the lower surface of the predetermined member to the upper surface of the desk 7. Furthermore, in the present disclosure, the term "there is a gap between the duct body 31 and the desk 7 (fixture)" includes a case where there is a gap extending from the bottom surface of the duct body 31 to the top surface of the desk 7.

By passing through the gap G1, objects such as documents can be passed across the partition 6. Further, an opening may be provided in a portion of the top plate 71 of the desk 7 below the first fixing part 1. The opening is configured to draw out electric wires for supplying AC power from under the top plate 71. The user can put his/her hand into the gap G1 and pull out the electric wire through the opening.

(5) DC Duct As shown in FIGS. 1 to 4, 6 and 13, each of the two DC ducts 3 includes a duct body 31 and two conductive bars 32 (a first conductive bar 32A and a second bar 32B). The duct body 31 includes a first rail 311 made of metal and two second rails 312 made of synthetic resin.

The two DC ducts 3 correspond to the two first fixing parts 1 on a one-to-one basis. Each DC duct 3 is housed in a corresponding housing groove 130 of the first fixing part 1. Therefore, the two DC ducts 3 are arranged on both sides in the front-rear direction with the partition 6 in between. That is, the DC duct system 100 includes a plurality (two) of DC ducts 3, and the plurality of DC ducts 3 include two DC ducts 3 arranged on both sides with the partition 6 in between. Thereby, in this embodiment, power can be supplied to the electric devices 94 arranged on both sides of the partition 6.

In addition, the two DC ducts 3 are fixed to the first fixing part 1 and the second fixing part 2 is fixed to the fixture (desk 7). They are located on opposite sides of each other in the direction (front-back direction). In other words, the two DC ducts 3 are arranged in the front-back direction.

The first rail 311 has a rectangular tube shape. The axial direction (length direction) of the first rail 311 is along the left-right direction. The first rail 311 includes a recess 3110. The recess 3110 is formed along the length direction (left-right direction) of the duct body 31. More specifically, the recess 3110 is formed across both ends of the duct body 31 in the length direction. Two conductive bars 32 are housed in the recess 3110.

The recess 3110 is open in a plane along the surface of the partition 6. More specifically, in each of the two DC ducts 3, a recess 3110 is opened on a surface (outward facing surface) opposite to the surface where the two DC ducts 3 face each other. In addition, in each of the two DC ducts 3, the surface where the recessed part 3110 opens is called the front surface. When each of the two DC ducts 3 is viewed from the front, the right end is called a first end 31A, and the left end is called a second end 31B.

As shown in FIGS. 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 parts 3111 is a groove. The two fitting parts 3111 are provided on the inner surface of the recess 3110. The two fitting parts 3111 are formed along the length direction (left-right direction) of the duct main body 31. More specifically, the two fitting portions 3111 are formed over the entire length of the duct body 31. The two fitting parts 3111 fit into the adapter 5A. Thereby, the adapter 5A is attached to the DC duct 3. That is, the duct main body 31 includes an adapter attachment part (two fitting parts 3111) for attaching the adapter 5A. The procedure for attaching the adapter 5A to the DC duct 3 will be described later.

Two mounting grooves 3112 are provided on the inner surface of the recess 3110. Of the two fitting portions 3111 and the two mounting grooves 3112, the two fitting portions 3111 are provided closer to the opening of the recess 3110. The two attachment grooves 3112 are formed along the length direction (left-right direction) of the duct body 31. More specifically, the two attachment grooves 3112 are formed over the entire length of the duct body 31.

The two mounting grooves 3112 correspond one-to-one with the two second rails 312. A corresponding second rail 312 is fitted into each mounting groove 3112. Thereby, the 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.

Moreover, the first rail 311 further includes a regulating portion 3114 (see FIG. 13). The restricting portion 3114 is a protrusion. The regulating portion 3114 (see FIG. 13) is provided at the lower part of the first rail 311. The restriction portion 3114 is inserted into the restriction portion 55 (recess) of the adapter 5A.

Each of the two second rails 312 has a length in the left-right direction. The second rail 312 is made of synthetic resin such as PTC (Polyvinyl Chloride), for example. The shape of the second rail 312 in a cross section perpendicular to the left-right direction is U-shaped. The second rail 312 holds the conductive bar 32 (first conductive bar 32A or second conductive bar 32B) inside thereof.

Each of the two conductive bars 32 (first conductive bar 32A or second conductive bar 32B) has a length in the left-right direction. Each of the first conductive bar 32A and the second conductive bar 32B is provided from the right end to the left end of the duct body 31. Each of the first conductive bar 32A and the second conductive bar 32B is electrically connected to the corresponding electric wire W1, W2 (see FIGS. 7, 8, and 10A) via the power supply member 4. In this embodiment, the first conductive bar 32A is electrically connected to the electric wire W1 on the positive electrode side, the second conductive bar 32B is electrically connected to the electric wire W2 on the negative electrode side, and the first conductive bar 32A and the DC power is supplied to the two conductive bars 32B.

The duct body 31 is provided with fitting portions that fit into the power supply member 4 at a first end (eg, right end) 31A and a second end (eg, left end) 31B in the longitudinal direction. Therefore, the duct body 31 is provided with a connection prevention structure that restricts the end portion to which the power feeding member 4 can be attached to either the first end 31A or the second end 31B. In this embodiment, the connection prevention structure includes a protrusion 35 provided on the inner surface of the duct body 31. The protrusion 35 is provided at the lower part of the rear wall in the recess 3110 of the duct body 31. The protrusion 35 is provided over the entire length of the duct body 31 in the longitudinal direction (left-right direction). That is, the DC duct 3 is provided with a connection prevention structure (protrusion 35) over the entire length direction (horizontal direction) of the first conductive bar 32A and the second conductive bar 32B.

As a result, as shown in FIGS. 2A and 2B, when the DC duct 3 is viewed from the length direction, the fitting portions of the DC duct 3 into which the power supply member 4 fits (the first end 31A and the second end 31B) ) is asymmetrical with respect to the center line L1 of the DC duct 3 in a predetermined direction. The predetermined directions are directions (vertical direction) perpendicular to the direction in which the power receiving device 5 (adapter 5A, etc.) is attached to the DC duct 3 (front-back direction) and the length direction (left-right direction), respectively.

The duct body 31 is provided with a protrusion 35 as a connection prevention structure, and the protrusion 35 is provided over the entire length of the duct body 31 in the length direction. Therefore, when trying to connect the first power supply member 4A that can be connected to the first end 31A to the second end 31B, the power supply member main body 42 of the first power supply member 4A interferes with the protrusion 35 on the second end 31B. Connection of the first power supply member 4A to the second end 31B is blocked. Moreover, when trying to connect the second power supply member 4B that can be connected to the second end 31B to the first end 31A, the power supply member main body 42 of the second power supply member 4B interferes with the protrusion 35 on the first end 31A. Connection of the second power supply member 4B to the first end 31A is blocked. That is, the connection blocking structure (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. Therefore, the power supply member 4 can be prevented from being connected to the end opposite to the end to which the power supply member 4 is permitted to connect, among the first end 31A and the second end 31B, and the power supply member 4 can be prevented from being connected to the end opposite to the end to which connection is permitted. There is an advantage that the first contact 44A and the second contact 44B of the member 4 are reliably connected to the first conductive bar 32A and the second conductive bar 32B, respectively.

In addition, since the duct body 31 is provided with a protrusion 35 which is a connection prevention structure on the entire lengthwise direction, the duct body 31 can be cut to an arbitrary length according to the dimensions of the fixture to which the DC duct 3 is attached. Even in this case, the first end 31A and the second end 31B of the duct body 31 can be formed into the same shape.

(6) Power supply member and end cap As shown in FIG. 6, the two power supply members 4 correspond one-to-one with the two DC ducts 3. The two end caps CP1 correspond to the two DC ducts 3 on a one-to-one basis. A corresponding power supply member 4 is attached to one of the first end 31A and 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 attachable to only one of the first end 31A and the second end 31B of the DC duct 3. That is, the power supply member 4 includes a first power supply member 4A connected to the first end 31A of the duct body 31, and a second power supply member 4B connected to the second end 31B of the duct body 31. Note that only one of the first power supply member 4A and the second power supply member 4B may be connected to one DC duct 3.

The power supply member 4 (the first power supply member 4A and the second power supply member 4B) connects the two conductive bars 32 (the first conductive bar 32A and the second conductive bar 32B) of the DC duct 3 to the corresponding electric wires W1 and W2 (Fig. 8 and FIG. 10A). That is, the first conductive bar 32A and the second conductive bar 32B are electrically connected to the corresponding electric wires W1 and W2 via the power supply member 4. Hereinafter, with reference to FIG. 8, the configuration of the power supply member 4 will be described using the second power supply member 4B as an example. Note that the configuration of the first power supply member 4A is the same as that of the second power supply member 4B except for the protrusions 45A and 45B, so a description of the first power supply member 4A will be omitted.

The power supply member 4 (second power supply member 4B) includes an outer box 41, a power supply member main body 42, and two terminals 43.

The outer box 41 has a rectangular parallelepiped shape. The outer box 41 houses a power supply member main body 42. The power supply member main body 42 includes a first block 421 and a second block 422. The first block 421 and the second block 422 are combined to form one box-shaped member (power feeding member main body 42).

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

The two terminals 43 include a first terminal 43A connected to the positive wire W1 of the DC power source, and a second terminal 43B connected to the negative wire W2 of the DC power source. A first contact 44A is provided integrally with the first terminal 43A, and a second contact 44B is provided integrally with the second terminal 43B. Each of the two terminals 43 (first terminal 43A and second terminal 43B) includes a spring 431 and a terminal portion 432 (see FIG. 10B). The combination of spring 431 and terminal portion 432 constitutes a quick connection terminal. That is, each of the two terminals 43 has a quick connection terminal.

The spring 431 is formed by bending a metal plate. The terminal portion 432 is made of a metal plate and has a plate shape. The terminal portion 432 faces the spring 431. The two terminals 43 (first terminal 43A and second terminal 43B) correspond one-to-one with the two conductive bars 32 (first conductive bar 32A and second conductive bar 32B). The terminal portion 432 of each terminal 43 is electrically connected to the corresponding conductive bar 32 (first conductive bar 32A and second conductive bar 32B). That is, the first terminal 43A includes a first contact 44A consisting of a terminal portion 432, and the second terminal 43B includes a second contact 44B consisting of a terminal portion 432.

As shown in FIGS. 10A and 10B, each of the electric wires W1 and W2 inserted into the power supply member body 42 through the wire entry hole 423 is sandwiched between the spring 431 and the terminal portion 432. Thereby, 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 duct 3.

The power supply member main body 42 of the power supply member 4 has a connector for preventing the power supply member 4 from connecting to the end opposite to the connectable end of the first end 31A and the second end 31B of the DC duct 3. A protrusion 45 that interferes with the protrusion 35 of the DC duct 3 is provided. Hereinafter, the protrusion 45 provided on the power feeding member body 42 of the first power feeding member 4A may 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 may be referred to as a protrusion 45B.

The power feeding member main body 42 of the second power feeding member 4B connectable to the second end 31B of the DC duct 3 has a protrusion 45B (see FIG. 4) is provided. Since the protrusion 45B is provided on the side opposite to the protrusion 35 in the vertical direction (the upper side when connected to the second end 31B of the DC duct 3), the power supply member main body 42 is inserted into the second end 31B. In this case, it does not interfere with the protrusion 35. Therefore, the second power feeding member 4B is configured to be connectable only to the second end 31B of the DC duct 3, and can be prevented from being attached to the side opposite to the side where connection is allowed to the DC duct 3. .

Further, the power feeding member main body 42 of the first power feeding member 4A connectable to the first end 31A of the DC duct 3 has a protrusion 45A at a position that interferes with the protrusion 35 when the power feeding member main body 42 is inserted into the second end 31B. (See FIG. 1) is provided. Since the protrusion 45A is provided on the side opposite to the protrusion 35 in the vertical direction (on the upper side when connected to the first end 31A of the DC duct 3), the power supply member main body 42 is inserted into the first end 31A. In this case, it does not interfere with the protrusion 35. Therefore, the first power feeding member 4A is configured to be connectable only to the first end 31A of the DC duct 3, and can be prevented from being attached to the side opposite to the side to which connection is permitted with respect to the DC duct 3. .

Furthermore, marks M1 and M2 are provided on the power supply member main body 42 as polarity display portions indicating the polarities of the electric wires W1 and W2 connected to the two terminals 43 (first terminal 43A and second terminal 43B). The marks M1 and M2 are provided on the surface of the power supply member main body 42 near the wire entry 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 main body 42 by an appropriate method such as resin molding, stamping, printing, painting, or pasting a sticker or name plate on which the marks M1 and M2 are printed. Since the polarity display portion (marks M1, M2) is provided on the surface of the power supply member body 42, it is difficult to make a polarity mistake when connecting the electric wires W1, W2 to the first terminal 43A and the second terminal 43B, respectively. It has the advantage of being

(7) Partition Partition 6 will be described below with reference to FIG. Below, the three partitions 6 may be distinguished and referred to as partitions 6A, 6B, and 6C, respectively. Configurations common to the three partitions 6 are given the same reference numerals, and duplicate explanations will be omitted as appropriate. Among the three partitions 6, the partition 6A is located at the rightmost position, the partition 6C is located at the leftmost position, and the partition 6B is located between the partitions 6A and 6C.

The partitions 6A to 6C have a plate-shaped partition main body 61 that is transparent. The material of the partition 6 is, for example, acrylic resin. A fitting protrusion that is inserted into the partition fixing structure S1 (through hole) is provided at the lower part of the partition main body 61.

The fitting protrusions of the three partitions 6 are inserted into the respective corresponding partition fixing structures S1 (through holes). This fixes each partition 6 to the DC duct system 100. That is, the partition fixing structure S1 is a structure that fits into the partition 6. Furthermore, each partition 6 can be removed from the DC duct system 100 by removing the fitting protrusion from the partition fixing structure S1. That is, the partition fixing structure S1 detachably fixes the partition 6.

(8) Adapter As shown in FIGS. 9 and 10A, one first fixing part 1 is arranged on both sides of the partition 6 in the front and back direction, and each first fixing part 1 houses a DC duct 3. has been done. Adapters 5A can be attached to these two DC ducts 3, respectively.

As shown in FIGS. 11 to 13, the adapter 5A includes a housing 51, a release operation section 52, a mounting protrusion 53, two power receiving terminals 54, and a spring housed in the housing 51.

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

The first insertion port 511 and the second insertion port 512 are provided on a surface facing away from the DC duct 3 (connector mounting surface 501) when the adapter 5A is attached to the DC duct 3. The first insertion port 511 and the second insertion port 512 are arranged vertically when the adapter 5A is attached to the DC duct 3.

The release operation section 52 is held in the housing 51. The release operation section 52 can be moved in a predetermined direction by applying force. A return force of a spring housed in the housing 51 acts on the release operation section 52 . Therefore, when no force is applied to the release operation section 52, the tip (claw section 520) of the release operation section 52 protrudes from the housing 51 to the side opposite to the connector mounting surface 501. .

The attachment protrusion 53 includes a shaft portion 531 and two ribs 532. The shaft portion 531 protrudes from the housing 51 on 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 opposite directions.

The two power receiving terminals 54 protrude from the housing 51 on the side opposite to the connector mounting surface 501 side. The tip of each of the two power receiving terminals 54 is bent.

The adapter 5A has a regulating portion 55. The regulating portion 55 is a recess formed on the surface of the adapter 5A (the surface facing the DC duct 3). When the adapter 5A is attached to the duct body 31, the restriction portion 3114 (protrusion) of the duct body 31 is inserted into the restriction portion 55. If the adapter 5A is oriented incorrectly (that is, if it is upside down from the orientation shown in FIG. 11), the regulating portion 3114 will interfere with the adapter 5A, making it impossible to attach the adapter 5A to the duct body 31. Can not. That is, the regulating portions 55 and 3114 regulate the orientation of the adapter 5A when the adapter 5A is attached to the duct body 31. As a result, of the two power receiving terminals 54, the positive power receiving terminal 54 is connected to the positive first conductive bar 32A, and the negative power receiving terminal 54 is connected to the negative second conductive bar 32B.

Adapter 5A further includes a voltage converter. The voltage converter converts the DC voltage received by the two power receiving terminals 54 into a DC voltage of a desired voltage value. A DC voltage whose voltage value has been converted by a voltage converter is output from the first insertion port 511 and the second insertion port 512. A DC voltage is applied to the electrical device 94 (see FIG. 14) via a cable including a connector 95 connected to the first outlet 511 or the second outlet 512.

The procedure for attaching the adapter 5A to the DC duct 3 will be described below.

In the orientation of the housing 51 shown in FIGS. 12 and 13, the two ribs 532 are aligned in the vertical direction.

First, as shown in FIG. 11, the operator holds the adapter 5A so that the direction in which the two ribs 532 are lined up is along the length direction (horizontal direction) of the duct body 31. In this state, the attachment protrusion 53 can be inserted into the recess 3110 of the duct body 31 without the two ribs 532 interfering with the duct body 31. The release operation section 52 moves toward the connector mounting surface 501 due to contact pressure with the first fixing section 1 .

After inserting the attachment protrusion 53 into the recess 3110 as shown in FIG. 11, the operator rotates the adapter 5A clockwise by 90 degrees as shown in FIGS. 12 and 13. Then, as shown in FIG. 13, the two ribs 532 are inserted into the two fitting parts 3111. This restricts the movement of the adapter 5A in the front-rear direction. Further, as shown in FIG. 12, the rotation of the housing 51 is restricted by inserting the claw portion 520 of the release operation portion 52 into the recess 3110 of the duct body 31, so that the adapter 5A is attached to the DC duct 3. It is kept in the same state. Further, the two power receiving terminals 54 are in contact with the corresponding conductive bars 32 (the first conductive bar 32A and the second conductive bar 32B), and are thereby electrically connected to the corresponding conductive bars 32.

Through the above procedure, the adapter 5A is attached to the DC duct 3. The adapter 5A can be attached to the DC duct 3 and electrically connected to the conductive bar 32 at any position in the area (attachment area) in which the recess 3110 is provided.

In addition, in this embodiment, the structure which restricts the movement of the adapter 5A attached to the DC duct 3 in the left-right direction is not provided. Therefore, the adapter 5A can be moved in the left-right direction while being attached to the DC duct 3. However, in order to suppress wear on the two power receiving terminals 54 due to the adapter 5A moving in the left-right direction, the DC duct system 100 has a configuration that restricts the left-right movement of the adapter 5A attached to the DC duct 3. You may be prepared.

Next, a procedure for removing the adapter 5A from the DC duct 3 will be explained. When the operator applies a force toward the connector mounting surface 501 to the release operation section 52, the release operation section 52 moves and the claw section 520 comes out of the recess 3110. This releases the restriction on the rotation of the housing 51. When the operator rotates the housing 51 90 degrees counterclockwise, the two ribs 532 come out from the two fitting parts 3111. Through the above procedure, the adapter 5A is removed from the DC duct 3.

(9) Power Supply System Next, an example of the configuration of a system (including the DC duct system 100) that supplies power to the electrical equipment 94 will be described with reference to FIG. 14.

A switching hub 92 and a splitter 93 are provided in a facility where the electrical equipment 94 is used. The switching hub 92 is electrically connected to the AC power supply 91. AC power supply 91 supplies AC power to switching hub 92 . The AC power source 91 is, for example, a commercial power source or a distributed power source.

The switching hub 92 is a PoE switching hub compatible with PoE (Power over Ethernet), and includes a DC power supply section 921. The DC power supply unit 921 converts the AC voltage input from the AC power supply 91 into a DC voltage of a predetermined voltage value, and outputs the DC voltage to the splitter 93. The switching hub 92 is electrically connected to a splitter 93 via a LAN (Local Area Network) cable. Furthermore, the switching hub 92 can be electrically connected to devices compatible with PoE. Examples of devices compatible with PoE include computer terminals, network cameras, IP (Internet Protocol) telephones, and wireless access points. The switching hub 92 can exchange PoE signals including data and power (DC power) with devices electrically connected to the switching hub 92 .

The splitter 93 is a PoE splitter compatible with PoE, 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 of a predetermined voltage value, and outputs the DC voltage to the DC duct 3. The splitter 93 separates the PoE signal received from the switching hub 92 into data and power (DC power). The splitter 93 supplies power separated from the PoE signal to devices that are not compatible with PoE. As an example, the splitter 93 supplies power separated from the PoE signal to one or more electrical devices 94 that are not compatible with PoE via the DC duct system 100.

Furthermore, the splitter 93 transmits a data signal containing data separated from the PoE signal to a device that is not compatible with PoE.

Here, in this embodiment, the DC power supply unit 921 of the switching hub 92 and the DC power supply unit 931 of the splitter 93 convert the AC voltage input from the AC power supply 91 into DC voltage, and output the DC voltage to the power supply member 4. A power supply unit PE1 is configured.

A 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 ducts 3 corresponds to two of the two electric wires W1 and W2, and the other DC duct 3 corresponds to the remaining two electric wires W1. , W2. The following description focuses on one DC duct 3, two electric wires W1 and W2 corresponding to this DC duct 3, and one power supply member 4.

The two electric wires W1 and W2 are a positive electrode side electric wire W1 and a negative electrode side electric wire W2. The two electric wires W1 and W2 correspond one-to-one to the two wire entry holes 423 (see FIG. 8) provided in the power supply member 4. Moreover, the two electric wires W1 and W2 correspond to the first conductive bar 32A and the second conductive bar 32B of the DC duct 3 on a one-to-one basis. The second end of the electric wire W1 on the positive electrode side is inserted into the corresponding wire entry hole 423, connected to the first terminal 43A, and electrically connected to the first conductive bar 32A via the first terminal 43A. The second end of the negative electrode side electric wire W2 is inserted into the corresponding wire entry hole 423, connected to the second terminal 43B, and electrically connected to the second conductive bar 32B via the second terminal 43B. One or more adapters 5A can be connected to the DC duct 3, and one or more electric devices 94 can be electrically connected to the first conductive bar 32A and the second conductive bar 32B via the adapter 5A. be.

As described above, each electrical device 94 receives power supplied from the DC power supply unit 931 via the electric wires W1 and W2 (that is, DC power output from the DC power supply unit 931) via the conductive bar 32 and the adapter 5A. be able to. The user can use the electrical equipment 94 on or around the desk 7 (see FIG. 9).

The DC voltage that the adapter 5A receives from the two conductive bars 32 (the voltage between the two conductive bars 32) is preferably 60V or less. In this case, there is an advantage that a qualification such as an electrician is not required when installing the adapter 5A. Therefore, compared to the case where an AC 100V outlet is relocated or newly installed, power supply can be easily secured.

It is more preferable that the DC voltage that the adapter 5A receives from the two conductive bars 32 (that is, the DC voltage output by the DC power supply unit 931) is 24V or less. Further, it is also preferable that the DC voltage that the adapter 5A receives from the two conductive bars 32 is 48V or less.

As an 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 unit 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 unit 931 of the splitter 93 is, for example, 24V. The adapter 5A receives the DC voltage output from the splitter 93 and outputs the DC voltage of 24V or less to the electric device 94.

By setting the voltage between the two conductive bars 32 of the DC duct 3 to 60 V or less (for example, 24 V), it is possible to reduce the possibility that a user will receive an electric shock when touching the conductive bars 32. Therefore, there is no need to provide a cover on the DC duct 3, and there is an advantage that the work of attaching and detaching the cover during the work of attaching the adapter 5A to the DC duct 3 does not take much effort.

The configuration example of the system for supplying power to the electrical equipment 94 has been described above, but instead of this system, for example, each electric wire W1, W2 can be connected to a commercial power source via the AC adapter 96 (see FIG. 7). It may also be connected to a power outlet.

(10) Advantage Since the DC duct 3 of Embodiment 1 has a connection prevention structure, the power supply member 4 (the first power supply member 4A and the second power supply member 4B) is connected to the first end 31A and the second end of the DC duct 3. Of the two ends 31B, only a predetermined end can be connected. Therefore, when the first power feeding member 4A and the second power feeding member 4B are connected to the DC duct 3, the first contact 44A on the positive side is connected to the first conductive bar 32A on the positive side, and the second contact on the negative side The child 44B is connected to the second conductive bar 32B on the negative electrode side. As a result, when connecting the first power supply member 4A and the second power supply member 4B to the DC duct 3, the first contact 44A on the positive side is incorrectly connected to the second conductive bar 32B on the negative side, and the first contact on the negative side The possibility that the two-contactor 44B is erroneously connected to the first conductive bar 32A on the positive electrode side can be reduced.

The power feeding member main body 42 of the power feeding member 4 (the first power feeding member 4A and the second power feeding member 4B) has a polarity display section (a mark) indicating the polarity of the electric wire connected to the first terminal 43A and the second terminal 43B, respectively. M1, M2), it is possible to reduce the possibility of connecting the electric wires with the wrong polarity when connecting the electric wires to the first terminal 43A and the second terminal 43B. Therefore, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar 32A and the second conductive bar 32B of the DC duct 3.

(Modification of Embodiment 1)
Modifications of the first embodiment will be listed below. The following modified examples may be realized in combination as appropriate.

(Modification 1)
The fixture to which the DC duct system 100 of the first embodiment is applied is not limited to the desk 7 where people sit on seats placed on both sides, but may be a desk 7C as shown in FIG. 15.

The desk 7C is a desk where the user is supposed to sit only in front of the desk 7C, and is called a counter desk, for example. The desk 7C includes a desk main body 70, a duct fixture F2 for fixing the DC duct 3, and a back panel 74. The duct fixture F2 has a first fixing part 1C and two second fixing parts 2C. The desk main body 70 includes a top plate 701, a protrusion 702, and a support body 703. A DC duct 3 is attached to the desk 7C. A power supply member 4 and an adapter 5A (see FIG. 12) are attached to the DC duct 3.

(Modification 2)
A DC duct system 100 according to modification 2 will be described with reference to FIGS. 16 and 17.

The DC duct system 100 of Modification 2 differs from the above implementation in that it includes a notification unit 80 (see FIG. 16) that notifies the state of application of DC voltage to the first contact 44A and the second contact 44B of the power supply member 4. It differs from the form. Here, notifying the application state of the DC voltage includes notifying whether or not a DC voltage of 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, or by using a mobile communication terminal (for example, a smartphone) owned by the user (for example, a worker who connects the electric wire to the power supply member 4). This may be done by sending information to (e.g.) Note that the components other than the notification unit 80 are the same as those in the above embodiment, so the same components are given the same reference numerals and the explanation thereof will be omitted.

The notification unit 80 is provided in the power supply member 4, for example. As shown in FIG. 16, the notification unit 80 includes a resistor 82 and a light source 81 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 facing the first contact 44A and the cathode facing the second contact 44B. The notification unit 80 is housed inside the power supply member body 42 in such a manner that the light source 81 is visible from the outside of the power supply member body 42 through the hole in the surface of the power supply member body 42 (see FIG. 17). Note that the light source 81 is not limited to a light emitting diode, and may be a solid light source such as an organic EL (Organic Electro Luminescence), an incandescent light bulb, a neon lamp, or the like.

When the positive electrode side electric wire W1 is connected to the first terminal 43A and the negative electrode side electric wire W2 is connected to the second terminal 43B, that is, the electric wire has a predetermined polarity for the first terminal 43A and the second terminal 43B. When W1 and W2 are connected, the light source 81 lights up. On the other hand, when the negative electric wire W2 is connected to the first terminal 43A and the positive electric wire W1 is connected to the second terminal 43B, the light source 81 is turned off. As a result, the worker who connects the electric wires can check whether the light source 81 is on or off, and connect the electric wire W1 from the DC power source PE1 to the first terminal 43A and the second terminal 43B. , W2 are connected with a predetermined polarity. Therefore, it is possible to further reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar 32A and the second conductive bar 32B.

In addition, as shown in FIG. 18, the light emitting diode that is the light source 81 has a cathode on the first contact 44A side and an anode on the second contact 44B side, and the first contact 44A and the second contact 44B are connected to each other. may be connected between the two. In this case, the light source 81 is in a state where a DC voltage is applied to the first contact 44A and the second contact 44B so that the voltage of the second contact 44B is higher than the voltage of the first contact 44A. Light. In other words, the light source 81 is turned on with the negative wire W2 being incorrectly connected to the first terminal 43A and the positive wire W1 being incorrectly connected to the second terminal 43B. Since 81 is lit, it can be easily confirmed that an erroneous connection between the electric wires W1 and W2 has occurred. Further, when the electric wires W1 and W2 are connected to the first terminal 43A and the second terminal 43B with predetermined polarity (when no erroneous connection occurs), the light source 81 is turned off. Therefore, there is an advantage that power consumption can be suppressed.

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

The first notification section 80A includes a resistor 82A and a light source 81A connected between a first terminal 43A and a 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 facing the first contact 44A and the cathode facing the second contact 44B. The first notification unit 80A includes a light source 81A that lights up when the positive electric wire W1 is connected to the first terminal 43A and the negative electric wire W2 is connected to the second terminal 43B. The light source 81A of the first notification section 80A is arranged on the surface of the power supply member main body 42 near the wire entry hole 423 corresponding to the first terminal 43A.

The second notification section 80B includes a resistor 82B and a light source 81B 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 facing the second contact 44B and the cathode facing the first contact 44A. The second notification unit 80B includes a light source 81B that lights up when the positive electric wire W1 is connected to the second terminal 43B and the negative electric wire W2 is connected to the first terminal 43A. The light source 81B of the second notification section 80B is arranged on the surface of the power supply member main body 42 near the wire entry hole 423 corresponding to the second terminal 43B.

In this way, when the power supply member 4 includes the first notification section 80A and the second notification section 80B, depending on which of the light source 81A of the first notification section 80A and the light source 81B of the second notification section 80B is lit, It is possible to check whether or not a wire is incorrectly connected.

Note that it is not essential that the notification unit 80 be provided in the power supply member 4, and the notification unit 80 may be provided in the DC duct 3 as shown in FIG. The notification unit 80 shown in FIG. 20 is configured to turn on when a wire with a polarity different from the predetermined polarity is incorrectly connected to the first terminal 43A and the second terminal 43B. The lamp may be configured to turn on when a wire of a different polarity is connected. The DC duct 3 also includes a first notification section 80A that lights up when a wire with a predetermined polarity is connected to the first terminal 43A and the second terminal 43B, and a first notification section 80A that lights up when an incorrect connection of the wire occurs. A second notification section 80B may be provided.

Further, the adapter 5A connected to the DC duct 3 may include a notification section 80, so that it can be confirmed whether or not a DC voltage of a predetermined polarity is being supplied to the adapter 5A.

Further, the power receiving device connectable to the DC duct 3 may include the inspection device 9 (see FIG. 21) including the notification section 80. If the inspection equipment 9 is connected to the DC duct 3 during construction of the DC duct 3, it is possible to check whether a wire is incorrectly connected by checking whether the light source 81 included in the notification unit 80 is on or off. You can check whether

Further, the notification unit 80 is not limited to one that notifies the application state of the DC voltage to the first contact 44A and the second contact 44B with light, but may notify with sound. The notification section 80 shown in FIG. 22 includes a diode 83 and a buzzer circuit 84 connected between the first terminal 43A and the second terminal 43B. In this notification section 80, when the positive wire W1 is connected to the second terminal 43B and the negative wire W2 is connected to the first terminal 43A, current flows through the buzzer circuit 84 and a notification sound is output. . Thereby, a worker who performs the wire connection work can confirm whether or not an erroneous wire connection has occurred based on whether or not the notification unit 80 emits a notification sound. Note that in the circuit shown in FIG. 22, a light emitting diode may be used in place of the diode 83, and notification can be provided by light emission from the light emitting diode and sound emitted by the buzzer circuit 84.

(Other variations)
In the above embodiment, the protrusion 35 is provided on the DC duct 3 as a connection prevention structure, but the shape and position of the protrusion 35 can be changed as appropriate. Further, it is not essential that the protrusion 35 be provided as a connection prevention structure over the entire length of the DC duct 3, and the connection prevention structure may be provided only at the first end 31A and the second end 31B of the DC duct 3. Good too.

Some configurations of DC duct system 100 may be provided independently of other configurations. For example, the DC duct 3, the duct fixture F1, the first fixing part 1, or the second fixing part 2 (fixing member) may be provided independently from other configurations.

The number of individual components shown in Embodiment 1 is an example, and is not limited to the number shown in Embodiment 1. For example, the DC duct system 100 is not limited to having two DC ducts 3, and may include one or more DC ducts 3. Further, the DC duct system 100 is not limited to having two first fixing parts 1, and may include one or three or more first fixing parts 1. Further, the DC duct system 100 is not limited to having two second fixing parts 2, and may include one or three or more second fixing parts 2. Furthermore, the partition system 200 is not limited to having three partitions 6, and may include one, two, or four or more partitions 6.

The plurality of DC ducts 3 may include two or more DC ducts 3 arranged in the vertical direction. Moreover, the voltage of the conductive bar 32 may be different for each of the two or more DC ducts 3. Moreover, the standard of the attachable adapter 5A may be different for each of the two or more DC ducts 3. For example, by making the two or more DC ducts 3 different in the width or depth of the recess 3110, the shape of the adapter 5A that can be attached to each of the two or more DC ducts 3 is limited. good. Further, in the DC duct 3, the first conductive bar 32A on the positive electrode side may be disposed on the lower side, and the second conductive bar 32B on the negative electrode side may be disposed on the upper side.

One first fixing part 1 may fix two or more DC ducts 3. Alternatively, two or more first fixing parts 1 may fix one DC duct 3.

Two or more DC ducts 3 may be connectable in each length direction (left and right direction).

As the second fixing part 2, a plurality of second fixing parts 2 having different standards for the lengths of the horizontal parts 21 may be prepared. By replacing the second fixing part 2 with another second fixing part 2 of a different standard, the two second fixing parts 2 on both sides of the first fixing part 1 can be adjusted according to the length of the fixture (desk 7). The distance between each of the support columns 22 can be adjusted.

The configuration of the second fixing part 2 is not limited to a configuration in which it is fixed to a fixture by the clamp mechanism 23. The second fixing part 2 may be fixed to the fixture by screwing, for example. Moreover, the first fixing part 1 may also be used as the second fixing part 2 by providing a part in the first fixing part 1 that is fixed to the fixture by screwing.

In the above embodiment, the voltage supplied to the electrical device 94 can be easily changed by replacing the adapter 5A with another adapter that outputs a different voltage to the connector 95.

Further, the connector 95 is not limited to a plug, and may be a jack (insertion port). The DC duct 3 may be capable of connecting both a first adapter to which a plug as the connector 95 can be connected and a second adapter to which a jack as the connector 95 can be connected. This makes it possible to accommodate electrical equipment 94 or cables that include either a plug or a jack. The first adapter and the second adapter may have the same configuration other than the connection portion with the connector 95.

(Embodiment 2)
The DC duct system 100 of Embodiment 2 will be described using FIG. 23. In the DC duct system 100 of Embodiment 2, the same components as in Embodiment 1 are denoted by the same reference numerals, and the description thereof will be omitted.

The DC duct system 100 includes a DC duct 3 and a power supply member 4C. The configuration of the DC duct 3 is the same as that in Embodiment 1, so a description thereof will be omitted. The power supply member 4C is different from the power supply member 4 of the first embodiment in that it includes a first connector 46 instead of the first terminal 43A and the second terminal 43B. The first connector 46 is, for example, a jack type connector. A plug-type second connector 97 provided on an electric wire W3 from a DC power source (for example, an AC adapter 96) that outputs DC voltage can be connected to the first connector 46. With the second connector 97 connected to the first connector 46, a DC voltage is applied from the DC power source (AC adapter 96) to the first contact 44A and the second contact 44B. The power feeding member 4C includes a first power feeding member for the right end connected to the first end 31A which is the right end of the DC duct 3, and a first power feeding member for the left end connected to the second end 31B which is the left end of the DC duct 3. 2 power supply members. A power supply member 4C shown in FIG. 23 is a second power supply member for the left end connected to the second end 31B of the DC duct 3.

Since the DC duct 3 of the second embodiment has a connection prevention structure like the first embodiment, the power feeding member 4C is connected to a predetermined portion of the first end 31A and the second end 31B of the DC duct 3. Connection is possible only at the end. Therefore, when the power supply member 4C is connected to the DC duct 3, the first contact 44A on the positive side is connected to the first conductive bar 32A on the positive side, and the second contact 44B on the negative side is connected to the second conductive bar 32A on the negative side. It is connected to conductive bar 32B. As a result, when connecting the power supply member 4C to the DC duct 3, the first contact 44A on the positive side is incorrectly connected to the second conductive bar 32B on the negative side, and the second contact 44B on the negative side is connected to the second conductive bar 32B on the positive side. The possibility of being erroneously connected to the first conductive bar 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, which is the DC power supply, to the first connector 46 of the power supply member 4C, the power supply member 4C and the DC power supply are connected. This prevents incorrect connections when connecting. Therefore, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar 32A and the second conductive bar 32B of the DC duct 3.

Note that the shapes of the first connector 46 and the second connector 97 can be changed as appropriate.

(Modification of Embodiment 2)
Modifications of the second embodiment will be listed below. The following modified examples may be realized in combination as appropriate. Further, the following modified examples may be realized by appropriately combining with the first embodiment.

(Modification 1)
The DC duct system 100 of Modification 1 will be described with reference to FIGS. 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. good.

Here, an example of a specific configuration of the power supply member 4C will be described based on FIGS. 25 and 26. Note that the power feeding member 4C shown in FIGS. 25 and 26 is a first power feeding member for the right end connected to the first end 31A, which is the right end of the DC duct 3, and the second end 31B, which is the left end of the DC duct 3. It may be a second power supply member for the left end connected to the left end.

The power supply member 4C includes an outer box 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 horizontal dimension is larger than the longitudinal dimension and the vertical dimension. The power supply member main body 42 has a first block 421 on the rear side and a second block 422 on the front side. The power supply member main body 42 is configured by coupling the first block 421 and the second block 422 with screws 425. The power supply member main body 42 accommodates two contacts 44 (including a first contact 44A and a second contact 44B). One end of the power feeding member body 42 in the left and right direction is inserted into the DC duct 3 .

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

In the power supply member main body 42, an electric wire 47 is introduced into the interior of the power supply member main body 42 from a second end opposite to the first end inserted into the DC duct 3. The electric wire 47 has two conductors 471 and 472, the conductor 471 is connected to the first contact 44A by welding, and the conductor 472 is connected to the second contact 44B by welding.

A first connector 46A is connected to the electric wire 47. The first connector 46A is a two-pole type connector.

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

Further, the first connector 46A is connected to the power supply member main body 42 via an electric wire 47, and the two conductors 471 and 472 of the electric wire 47 are connected in advance to the first contact 44A and the second contact 44B. . Therefore, 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, a direct current will flow with the correct polarity to the first conductive bar 32A and the second conductive bar 32B provided in the DC duct 3. Since voltage is applied, the possibility of incorrect construction occurring at the construction site can be reduced.

Note that the first connector 46A shown in FIGS. 25 and 26 is an example, and can be modified as appropriate.

(Modification 2)
The DC duct system 100 of Modification 2 will be described with reference to FIGS. 27 to 33.

In the first and second embodiments described above, the protrusion 35 serving as a connection prevention structure is provided on the rear surface of the DC duct 3, but the connection prevention structure is not limited to that provided on the rear surface of the DC duct 3. If the shape of the fitting portion of the DC duct 3 into which the power feeding member 4 is fitted is asymmetrical with respect to the center line L1, the connection blocking structure may not be provided inside the DC duct 3 at a portion other than the rear surface. You can.

FIG. 27 is a side view of the DC duct 3 viewed from the right.

The DC duct 3 includes a duct main body 31 and two conductive bars 32 (a first conductive bar 32A and a second conductive bar 32B).

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

Each of the two mounting grooves 3112 is provided with holding claws 3116 and 3117 for holding the second rail 312, and when the holding claws 3116 and 3117 hit the corners of the second rail 312, the second rail 312 is fixed in the mounting groove 3112.

The two fitting parts 3111 are grooves, and two ribs 532 of the adapter 5A connected to the DC duct 3 are inserted into the two fitting parts 3111. Furthermore, two ribs 4211 and 4212 of the power supply member 4 attached to the DC duct 3 are inserted into the two fitting parts 3111. Of the two fitting parts 3111, the lower fitting part 3111 is provided with a protrusion 3115 that is a connection prevention structure.

The power supply member 4 includes a first power supply member 4A attached to the right first end 31A of the DC duct 3, and a second power supply member 4B attached to the left second end 31B of the DC duct 3.

A rib 4211 that projects downward and a rib 4212 that projects upward are provided on the front side of the power feeding member main body 42 of the first power feeding member 4A while being attached to the first end 31A of the DC duct 3. (See Figures 28 to 30). Similarly, the front portion of the power supply member main body 42 of the second power supply member 4B includes a rib 4211 that projects downward and a rib 4212 that projects upward while being attached to the second end 31B of the DC duct 3. (See FIGS. 31 to 33). Each of the first power supply member 4A and the second power supply member 4B is provided with a recess 4213 on the rear surface of the rib 4211 into which the protrusion 3115 provided on the fitting portion 3111 enters.

As a result, when the first power supply member 4A is attached to the left second end 31B of the DC duct 3, the rib 4212 of the first power supply member 4A directed downward comes into contact with the protrusion 3115 of the fitting part 3111. Therefore, it is possible to prevent the first power supply member 4A from being attached to the second end 31B. Furthermore, when attempting to attach the second power supply member 4B to the right first end 31A of the DC duct 3, the rib 4212 of the second power supply member 4B directed downward comes into contact with the protrusion 3115 of the fitting part 3111. Therefore, it is possible to prevent the second power supply member 4B from being attached to the first end 31A. Therefore, the possibility that a DC voltage with wrong polarity is applied to the first conductive bar 32A and the second conductive bar 32B of the DC duct 3 can be reduced.

Furthermore, since the protrusion 3115 serving as the connection prevention structure is provided inside the fitting portion 3111, compared to the case where the protrusion 35 serving as the connection prevention structure is provided on the rear surface of the DC duct 3 as in the above embodiment, There is an advantage that the protrusions 3115 are less likely to get in the way when forming the holding claws 3116 and 3117.

Note that the connection prevention structure described in Modification 2 is also applicable to the DC duct system 100 of Embodiment 1 described above.

(Modification 3)
The power supply member 4 included in the DC duct system 100 of Modification 3 will be described with reference to FIG. 34.

The power supply member 4 included in the DC duct system 100 of Modification 3 differs from Modification 2 in that it is directly connected to AC adapter 96 via electric wire 47 .

Since the power supply member 4 is directly connected to the AC adapter 96 via the electric wire 47, there is no need to connect the connector on site, and when the plug of the AC adapter 96 is connected to the outlet, the first conductor of the DC duct 3 A DC voltage is supplied to the bar 32A and the second conductive bar 32B. Therefore, the possibility that a DC voltage with wrong polarity is applied to the first conductive bar 32A and the second conductive bar 32B of the DC duct 3 can be reduced.

(summary)
As explained above, the DC duct system (100) of the first aspect includes the DC duct (3) and the power supply member (4). The DC duct (3) holds a first conductive bar (32A) on the positive side and a second conductive bar (32B) on the negative side to which a DC voltage is applied. In the DC duct (3), the first conductive bar (32A) and the second conductive bar (32B) are connected to arbitrary positions in the length direction of the first conductive bar (32A) and the second conductive bar (32B). A power receiving device (5) that receives DC voltage can be connected thereto. The power supply member (4) has a first contact (44A) connectable to the first conductive bar (32A) and a second contact (44B) connectable to the second conductive bar (32B), and has a length Connected to one end of the DC duct (3) in the direction. The other end of the DC duct (3) in the longitudinal direction has a power supply member (4) connected to the other end of the DC duct (3) by contacting at least a part of the power supply member (4). A connection prevention structure (35, 3115) is provided to prevent connection. The power supply member (4) includes 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 contactor (44A), and can be connected to a positive electrode side electric wire (W1) of a DC power supply section (PE1) that outputs a DC voltage. The second terminal (43B) is electrically connected to the second contactor (44B), and can be connected to the negative electrode side electric wire (W2) of the DC power supply section (PE1). The power supply member main body (42) is provided with polarity display sections (M1, M2) that display the polarities of the first terminal (43A) and the second terminal (43B).

According to this aspect, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar (32A) and the second conductive bar (32B).

The DC duct system (100) of the second aspect includes a DC duct (3) and a power supply member (4). The DC duct (3) holds a first conductive bar (32A) on the positive side and a second conductive bar (32B) on the negative side to which a DC voltage is applied. In the DC duct (3), the first conductive bar (32A) and the second conductive bar (32B) are connected to arbitrary positions in the length direction of the first conductive bar (32A) and the second conductive bar (32B). A power receiving device (5) that receives DC voltage can be connected thereto. The power supply member (4) has a first contact (44A) connectable to the first conductive bar (32A) and a second contact (44B) connectable to the second conductive bar (32B), and has a length Connected to one end of the DC duct (3) in the direction. The other end of the DC duct (3) in the longitudinal direction has a power supply member (4) connected to the other end of the DC duct (3) by contacting at least a part of the power supply member (4). A connection prevention structure (35, 3115) is provided to prevent connection. The power supply member (4) has a first connector (46, 46A). A second connector (97) provided on an electric wire (W3) from a DC power source (PE1) that outputs DC voltage can be connected to the first connector (46, 46A). With the second connector (97) connected to the first connector (46, 46A), a DC voltage is applied from the DC power supply unit (PE1) to the first contact (44A) and the second contact (44B). Ru.

According to this aspect, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar (32A) and the second conductive bar (32B).

In the DC duct system (100) of the third aspect, in the second aspect, the power feeding member (4) includes a power feeding member main body (42) holding the first contact (44A) and the second contact (44B). has. A first connector (46A) is provided on the electric wire (47) led out from the power supply 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, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar (32A) and the second conductive bar (32B).

In the DC duct system (100) of the fourth aspect, in any one of the first to third aspects, the DC duct (3) has a length of the first conductive bar (32A) and the second conductive bar (32B). A connection prevention structure (35, 3115) is provided throughout the direction.

According to this aspect, even if the DC duct (3) is cut into appropriate dimensions, the connection prevention structures (35, 3115) can be provided at both ends of the DC duct (3) in the length direction.

In the DC duct system (100) of the fifth aspect, in any one of the first to fourth aspects, the connection prevention structure (35, 3115) has a protrusion (35, 3115) provided on the DC duct (3). include. When looking at the DC duct (3) from the length direction, the shape of the fitting part of the DC duct (3) into which the power feeding member (4) fits is such that the power receiving device (5) is connected to the DC duct (3). It is asymmetrical with respect to the center line (L1) of the DC duct (3) in the direction perpendicular to the installation direction and the length direction, respectively.

According to this aspect, it is possible to reduce the possibility that the power supply member (4) is erroneously attached to the end opposite to the predetermined end.

In the DC duct system (100) of the sixth aspect, in any one of the first to fifth aspects, the power feeding member (4) includes a first power feeding member (4A) and a second power feeding member (4B). include. The first power feeding member (4A) is connected to the first end (31A) of the first end (31A) and the second end (31B) of the DC duct (3) in the length direction, and the second power feeding member (4B ) is connected to the second end (31B). The connection blocking 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 connecting to the first end (31A). do.

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). You can prevent it from happening.

In the DC duct system (100) of the seventh aspect, in any one of the first to sixth aspects, a notification that notifies the application state of DC voltage to the first contact (44A) and the second contact (44B) is provided. The apparatus further includes a section (80).

According to this aspect, when DC voltage is applied to the first conductive bar (32A) and the second conductive bar (32B) with wrong polarity, the worker can also check the notification contents of the notification section (80). You can check for construction errors. Therefore, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar (32A) and the second conductive bar (32B).

In the DC duct system (100) of the eighth aspect, in the seventh aspect, the notification section (80) includes a light source (81). The light source (81) applies direct current to the first contact (44A) and the second contact (44B) so that the voltage of the second contact (44B) is higher than the voltage of the first contact (44A). Lights up when voltage is applied.

According to this aspect, the worker is aware that since the light source (81) is on, the DC voltage is being applied to the first conductive bar (32A) and the second conductive bar (32B) with the wrong polarity. I can confirm that there is. When a DC voltage with correct polarity is applied to the first conductive bar (32A) and the second conductive bar (32B), the light source (81) is turned off, so power consumption can be reduced.

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

According to this aspect, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar (32A) and the second conductive bar (32B) of the DC duct (3).

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

According to this aspect, a DC voltage with wrong polarity may be applied to the first conductive bar (32A) and the second conductive bar (32B) of the DC duct (3) to which the power supply member (4) is connected. It is possible to reduce the

The power supply system (PS1) of the eleventh aspect includes the DC duct system (100) of any one of the first to eighth aspects and a DC power supply section (PE1). The DC power supply unit (PE1) converts the AC voltage input from the AC power supply (91) into DC voltage and outputs the DC voltage to the power supply member (4).

According to this aspect, it is possible to reduce the possibility that a DC voltage with wrong polarity will be applied to the first conductive bar (32A) and the second conductive bar (32B).

The configurations according to the second to eighth aspects are not essential to the DC duct system (100) and can be omitted as appropriate. Further, the ninth and tenth aspects may be implemented as long as they can be implemented alone and are applicable to the DC duct system (100) of any one of the first to eighth aspects.

3 DC duct 4 Power supply member 4A First power supply member 4B Second power supply member 5 Power receiving device 31A First end 31B Second end 32A First conductive bar 32B Second conductive bar 35, 3115 Projection (connection prevention structure)
42 Power supply member 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 duct system PE1 DC power supply section L1 Center line M1 , M2 mark (polarity display)
PS1 Power supply system W1~W3 Electric wire

Claims (11)

A first conductive bar on the positive side and a second conductive bar on the negative side to which a DC voltage is applied are held, and the first conductive bar is placed at any position in the length direction of the first conductive bar and the second conductive bar. and a DC duct to which a power receiving device that receives DC voltage via the second conductive bar can be connected;
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 duct in the length direction. and,
A connection blocker is provided at the other end of the DC duct in the length direction, and prevents connection of the power supply member to the other end of the DC duct by contacting at least a portion of the power supply member. A structure is provided,
The power supply member is
a first terminal that is electrically connected to the first contact and connectable to a positive wire of a DC power supply unit that outputs a DC voltage;
a second terminal electrically connected to the second contact and to which a negative electrode side electric wire of the DC power supply unit can be connected;
a power supply member main body that holds the first terminal and the second terminal;
The power feeding member main body is provided with a polarity display section that displays the polarity of the first terminal and the second terminal.
DC duct system. A first conductive bar on the positive side and a second conductive bar on the negative side to which a DC voltage is applied are held, and the first conductive bar is placed at any position in the length direction of the first conductive bar and the second conductive bar. and a DC duct to which a power receiving device that receives DC voltage via the second conductive bar can be connected;
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 duct in the length direction. and,
A connection blocker is provided at the other end of the DC duct in the length direction, and prevents connection of the power supply member to the other end of the DC duct by contacting at least a portion of the power supply member. A structure is provided,
The power supply member has a first connector,
A second connector provided on an electric wire from a DC power supply unit that outputs DC voltage can be connected to the first connector,
With the second connector connected to the first connector, a DC voltage is applied from the DC power supply to the first contact and the second contact.
DC duct system. The power supply member has a power supply member main body that holds the first contact and the second contact,
The first connector is provided on an electric wire led out from the power supply member main body,
The first connector is electrically connected to the first contact and the second contact via the electric wire.
The DC duct system according to claim 2. The DC duct is provided with the connection prevention structure over the entire length direction of the first conductive bar and the second conductive bar.
The DC duct system according to any one of claims 1 to 3. The connection prevention structure includes a protrusion provided on the DC duct,
When the DC duct is viewed from the length direction, the shape of the fitting portion of the DC duct into which the power supply member fits is the same as the direction in which the power receiving device is attached to the DC duct and the length direction, respectively. asymmetrical with respect to the centerline of the DC duct in orthogonal directions;
The DC duct system according to any one of claims 1 to 4. The power supply member includes a first power supply member connected to the first end and a second power supply member connected to the second end of the first end and second end of the DC duct in the length direction. and,
The connection blocking structure prevents connection of the first power supply member to the second end, and prevents connection of the second power supply member to the first end.
A DC duct system according to any one of claims 1 to 5. further comprising a notification unit that notifies the state of application of DC voltage to the first contact and the second contact;
A DC duct system according to any one of claims 1 to 6. The notification unit lights up while 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. including the light source,
The DC duct system according to claim 7. The DC duct system according to any one of claims 1 to 8 comprises:
DC duct. The DC duct system according to any one of claims 1 to 8 comprises:
Power supply member. The DC duct system according to any one of claims 1 to 8,
The DC power supply section converts an AC voltage input from an AC power supply into a DC voltage and outputs the DC voltage to the power supply member.
Power supply system.

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