JP2009093897A - Network equipment installation table and wiring duct system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate a problem that an AC/DC adaptor has to be bound by a pressure sensitive tape or a cord so that it may not be floated in the air. <P>SOLUTION: This is a network equipment installation table 49 used for a wiring duct system having a wiring duct D installed on a building and an PLC plug 2 for wiring duct. The network equipment installation table 49 is installed on the wiring duct D and supports a network equipment 3 and provided with a tray portion 55 capable of mounting an AC/DC adaptor installed in the middle of a power supply cable 83 of the network equipment 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a network equipment mount and a wiring duct system.

Conventionally, a slide rail-shaped wiring duct attached to an indoor ceiling or the like is attached to an indoor ceiling or the like, and a power line routed in the indoor is connected to a conductive wire in the wiring duct and wired to the wiring duct. There has been proposed a wiring duct system for supplying power to a lighting fixture by attaching a duct outlet plug and electrically connecting a power cable of the lighting fixture to the wiring duct outlet plug (see, for example, Patent Document 1).
JP 53/084195

  By applying such a wiring duct system, the present inventor has conceived a wiring duct system that attaches a PLC plug for power line carrier communication to the wiring duct and supplies power and communication to the network equipment via the PLC plug. It was. In such a wiring duct system, consideration must be given to the arrangement position of the AC / DC adapter of the power cable of the network device. In other words, the AC / DC adapter must be fastened to the wiring duct or the PLC plug for the wiring duct with an adhesive tape or the like so that the AC / DC adapter does not float in the vicinity of the ceiling wiring duct. There was a problem that it took time and was not good looking.

  Therefore, an object of the present invention is to provide a wiring duct system and a network device mounting base that can solve the problem caused by tying the AC / DC adapter of the power cable of the network device.

  The invention according to claim 1 is a wiring duct comprising: a slide rail portion attached to a building; and a conductor provided along the slide rail portion and connected to a power line routed in the building; A mounting portion that is attached to the slide rail portion of the wiring duct and is electrically connected to a conductor of the wiring duct, a communication cable connection portion to which a communication cable of a network device is connected, and power line conveyance from the conductor of the wiring duct A power cable to which a power cable of the network device is connected to a modem that demodulates a signal and transmits the signal to the network device and demodulates a data signal from the network device to a power line carrier signal and transmits it to a conductor of the wiring duct A wiring duct system comprising: a connecting portion; and a PLC plug for a wiring duct having a connection portion. A network device mounting base, wherein the network mounting base is attached to the wiring duct and supports the network equipment, and a tray portion on which an AC / DC adapter of a power cable of the network equipment can be placed It is characterized by providing.

  The invention according to claim 2 is a wiring duct system, a slide rail portion attached to a building, and a conductor provided along the slide rail portion and connected to a power line routed in the building. A wiring duct, a mounting portion that is attached to a slide rail portion of the wiring duct and is electrically connected to a conductor of the wiring duct, a communication cable connection portion to which a communication cable of a network device is connected, and the wiring duct A modem that demodulates a power line carrier signal from a conductor of the network and transmits it to the network device and demodulates a data signal from the network device to a power line carrier signal and transmits it to the conductor of the wiring duct; and a power cable for the network device A PLC plug for a wiring duct having a power cable connecting part to which A network equipment mounting base that is attached to a wire duct and supports the network equipment, the network equipment mounting base having a tray portion on which an AC / DC adapter of a power cable of the network equipment can be placed. It is what.

  According to the first aspect of the present invention, since the network device mounting base includes the tray portion, the AC / DC adapter of the power cable of the network device can be placed on the tray portion. This eliminates the trouble of tying the AC / DC adapter to the wiring duct or the like with an adhesive tape or the like, and improves the appearance.

  According to the invention of claim 2, since the network device mounting base is configured to include the tray portion, the AC / DC adapter of the power cable of the network device can be placed on the tray portion. This eliminates the trouble of tying the AC / DC adapter to the wiring duct or the like with an adhesive tape or the like, and improves the appearance.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

(First embodiment)
First, the wiring duct system 30 of the first embodiment will be described with reference to FIGS. FIG. 1 is an overall view of a wiring duct system 30 according to the first embodiment.

  As shown in FIG. 1, the wiring duct system 30 includes, for example, a wiring duct D disposed on an indoor ceiling, a PLC plug 2 for a wiring duct attached to the wiring duct D, a communication cable 82, and a power cable 83. As a network device mounting base that supports a plurality of network devices 3 (only one is shown in FIG. 1) connected to the PLC plug 2 via the wiring duct D and supports the network camera 3 as one network device. The camera mounting base 49 is configured.

  First, the wiring duct D of this embodiment is demonstrated based on FIG.

  As shown in FIG. 2, the wiring duct D is roughly configured by a long slide rail portion 1 having a U-shaped cross section and a conductor 10 built in the slide rail portion 1.

  As shown in FIG. 2, the slide rail portion 1 includes an upper wall 13, a side wall 12, and a bottom wall 11, and the space between the bottom wall 11 serving as a lip portion connects the inside and the outside of the slide rail portion 1. It becomes the opening 14 which connects, This opening 14 is arrange | positioned so that it may face downward.

  A conductor holding part 15 for holding the conductor 10 is provided on the inner surface of the side wall 12. The conductor holding portion 15 is formed by projecting a conductor sandwiching rib 15a for sandwiching the conductor 10 from above and below from the inner surface of the side wall 12, and by laying a construction rib 15b between the conductor sandwiching ribs 15a. It is held by the inner surface of the rib 15a (the center side of the slide rail portion 1) and the leading ends of both sandwiching ribs. The conductor 10 is a long one having a short cross section, and is disposed along the longitudinal direction of the slide rail portion 1.

  A ground conductor holding portion 17 that holds the ground conductor 16 is provided on the inner surface of the upper wall 13. The earth conductor holding portion 17 is formed by two earth conductor holding ribs having an L-shaped cross section provided on the inner surface of the upper wall 13 and holding the earth conductor 16. The earth conductor 16 is held by the earth conductor holding rib. The

  Next, the wiring duct PLC plug (PLC modem) of the present embodiment will be described with reference to FIGS.

  The PLC plug 2 includes a housing 20 in which a power line communication device is incorporated, and an attachment portion 6 to which the housing 20 is fixed and attached to the slide rail portion 1 of the wiring duct D. Note that the power line communication apparatus includes an interface unit 4 and a communication cable connection unit 5.

  The housing 20 has a substantially box shape, and the electric wire 31 and the interface part 4 of the power line communication device are accommodated therein, and an attachment part 6 having an electrode 32 for fixing to the wiring duct D is provided on the upper surface. The plug blade insertion port 71 of the power cable connection unit 7 and the communication cable connection unit 5 of the power line communication device are provided on the surface other than the upper surface.

  The electric wire 31 is connected to an electrode 32 provided on the mounting portion 6 on the upper surface of the housing 20 and transmits electric power or a signal for power line communication (hereinafter referred to as a communication signal) to a network device in the housing 20. An electric wire for connecting to the blade receiver of the cable connection portion 7, an electric wire for supplying power to each device (described later) constituting the power line communication device, an electric wire for transmitting a communication signal to the power line communication device, and a power line communication device And an electric wire connecting each device.

  As shown in FIG. 6, the power cable connecting portion 7 is housed in the housing 20 and connected to the power line PL via the electric wire 31, and a plug provided on the surface of the housing 20 for supplying power to other devices. And a plug blade insertion port 71 connected to the blade receiver.

  Next, the mounting portion 6 for mounting the housing 20 to the wiring duct D will be described with reference to FIGS. The attachment portion 6 is provided on the upper surface of the housing 20 (upper surface of the top wall portion), is inserted from below into the opening 14 of the wiring duct D, and supports the housing 20 by the bottom wall 11 of the wiring duct D.

  From the upper surface of the top wall portion of the housing 20, two long standing pieces 28 are erected along the longitudinal direction of the housing 20, and the standing pieces 28 are formed on the slide rail portion 1 of the wiring duct D. The lower end portion of the side wall 12 is fitted from below, and the attachment portion 6 is provided in a portion between the compatible portion pieces 28 of the top wall portion of the housing 20.

  The mounting portion 6 is mainly composed of an insertion portion 61 that is rotatably mounted in an opening hole (not shown) formed in the top wall portion of the housing 20 and protrudes upward. Although not shown, the portion of the insertion portion 61 that is attached to the opening hole is lower than the opening hole that is in contact with the lower surface side of the top wall portion, and the opening hole that is in contact with the upper surface side of the top wall portion. The upper flange portion has a large diameter, and is attached to the housing 20 while being prevented from coming off.

  The insertion portion 61 is inserted into the opening 14 of the wiring duct D, and has a locking portion 62 protruding from the side. The locking part 62 protrudes laterally from two places opposite to each other in the circumferential direction of the insertion part 61, and the length between the tips of both locking parts 62 is larger than the width of the opening 14 of the wiring duct D. Further, it is formed shorter and shorter than the distance between both side walls 12 of the wiring duct D, and the width of the locking portion 62 is shorter than the width of the opening 14 of the wiring duct D.

  Thus, the leading end of both locking portions 62 is inserted into the opening 14 with the direction connecting the leading ends of both locking portions 62 being the longitudinal direction of the opening 14 of the wiring duct D, and the insertion portion 61 is rotated. The housing 20 is supported by the wiring duct D by placing and locking the side portion on the upper surface of the bottom wall 11 of the wiring duct D.

  In the present embodiment, such insertion portions 61 are provided at two places on both sides in the longitudinal direction of the housing 20, and a lever 63 is provided at one of them.

  The lever 63 protrudes laterally from any one of the insertion portions 61 and protrudes outward through the opening 14 of the housing 20 or protrudes from a portion outside the housing 20 of the insertion portion 61. The insertion portion 61 is rotated by operating 63 and rotating it sideways.

  The insertion portion 61 is provided with an electrode 32. The insertion portion 61 is formed to have a length that reaches the vicinity of the ground conductor 16 provided on the inner surface of the upper wall 13 of the wiring duct D when the housing 20 is mounted. An electrode 32 made of a plug blade protrudes from a portion above the protruding portion, and a ground pin 33 protrudes from the distal end of the insertion portion 61.

  The electrode 32 protrudes laterally from two positions opposite to each other in the circumferential direction of the insertion portion 61 as with the locking portion 62, and as shown in FIG. The insertion portion 61 is rotated in a state in which the opening 14 of the wiring duct D is in the longitudinal direction, and the insertion portion 61 is rotated so that the locking portion 62 is engaged with the bottom wall 11 of the wiring duct D as shown in FIG. In a stopped state, the tips of both electrodes 32 are brought into contact with the conductor 10 provided on the side wall 12 of the wiring duct D to be conducted.

  The above-described electric wire 31 that is electrically connected to the device in the housing 20 through the inside of the insertion portion 61 is connected to the electrode 32. The ground pin 33 is connected to the ground conductor 16 provided on the inner surface of the upper wall 13 of the wiring duct D in a state where the locking portion 62 of the insertion portion 61 is locked to the bottom wall 11 of the wiring duct D. By attaching the housing 20 of the PLC plug 2 to the wiring duct D by such an attachment portion 6, the mounting portion 6 is attached to the wiring duct D by the locking portion 62 protruding from the insertion portion 61 inserted into the wiring duct D. In addition to being mechanically fixed, the electrical connection to the conductor 10 in the wiring duct D is made, and the attachment is easily performed.

  Thereby, the plug blade of the plug for supplying power to another device can be inserted into the plug blade insertion port 71, and power can be supplied to this other device.

  Next, a power line communication apparatus will be described. As described above, the power line communication device is mainly composed of the interface unit 4 and the communication cable connection unit 5.

  A pair of electric wires 31 that transmit a communication signal to the interface unit 4 are connected to the interface unit 4 via a DC cut capacitor 21 and an insulating transformer 22. In addition, a power supply unit 23 composed of an AC / DC converter is connected to the electric wire 31 that supplies power to each device of the interface unit 4 in the middle.

  The interface unit 4 includes a transmission / reception unit 40, a power line communication modem 41, a communication interface 42, and a control unit 43.

  The transmission / reception unit 40 is connected to the secondary side of the isolation transformer 22 and transmits / receives communication signals to / from the power line PL, and is connected to the power line communication modem 41. The power line communication modem 41 has a demodulation function for demodulating a data signal from a communication signal in a predetermined format transmitted by being superimposed on the power line PL, and a network device (network camera 3) side including a computer such as a personal computer or a computer. Is connected to the communication interface 42 by a PLC modem having a modulation function for modulating the data signal from the communication signal into a communication signal of a predetermined format. The communication interface 42 is a LAN controller for transmitting and receiving data signals to and from a network device (network camera 3) in conformity with Ethernet (registered trademark) standards such as 100BASE-TX. Connected. The power line communication modem 41 and the communication interface 42 are controlled by the control unit 43. The control unit 43 controls the entire interface unit 4 with the CPU as a main component. For example, a security function such as filtering of data (packets) transmitted between the power line communication modem 41 and the communication interface 42, The display unit 44 for displaying a communication state such as data transmission is controlled to have a function of causing the display element LD included in the display unit 44 to emit light. The devices of the interface unit 4 such as the transmission / reception unit 40, the power line communication modem 41, the communication interface 42, and the control unit 43 are operated by a DC power source created by the power source unit 23.

  The communication cable connection unit 5 is a receiving side to which a communication plug attached to the tip of the communication cable 82 connected to the network device (network camera 3) is detachably connected. The communication cable 82 is a LAN cable of CAT5, for example. In this case, it is composed of an RJ-45 modular jack to which an RJ-45 modular plug attached to the tip thereof is detachably connected. Although the communication cable connecting portion 5 is formed on the side surface in the longitudinal direction of the wiring duct D of the housing 20 in this embodiment, it may be formed on the side surface in the short direction of the wiring duct D or on the lower surface.

  Next, the camera mount 49 according to the present embodiment will be described with reference to FIGS.

  As shown in FIG. 7, the camera mounting base 49 includes a stay 50 that is attached to the wiring duct D and supports the network camera 3, and a substantially rectangular tray portion 55 that protrudes radially outward from the stay 50. Configured.

  The stay 50 includes a substantially cylindrical stay main body 51, a duct mounting portion 52 provided at the upper end of the stay main body 51 and connected to the wiring duct D, and a camera mounting provided at the lower end of the stay main body 51 and supporting the network camera 3. Part 53.

  As shown in FIG. 8, on the upper surface of the duct mounting portion 52, two second standing pieces 28a that are erected upward in the same manner as the PLC plug 2, and a second one that is rotatably provided and projects upward. 2 insertion part 61a and the 2nd latching | locking part 62a which protrudes in the side from the two places which are the mutually opposite sides of the circumferential direction of this 2nd insertion part 61a are provided. With such a configuration, when the camera mounting base 49 is attached to the wiring duct D, the second insertion portion 61a of the duct attachment portion 52 is inserted into the opening 14 of the wiring duct D, and the second insertion portion 61a is rotated. The camera mounting base 49 is attached to the wiring duct D by locking the second locking portion 62 a to the upper surface of the bottom wall 11 of the wiring duct D.

  The camera attachment portion 53 is rotatably attached to the stay main body 51. A screw-shaped rotating body (not shown) protrudes from the lower surface of the camera mounting portion 53. By screwing this screw-shaped rotating body into a screw hole provided on the upper surface of the network camera 3, the camera The network camera 3 is attached to the attachment portion 53.

  As shown in FIGS. 7 and 9, the tray portion 55 has a substantially box shape projecting radially outward from the stay main body 51, and has a rectangular bottom wall 57 and upward from four sides of the bottom wall 57. And a protruding side wall 58. The tray unit 55 can place the AC / DC adapter 60 provided in the middle of the power cable 83 of the network camera 3. When the AC / DC adapter 60 is placed on the bottom wall 57, the AC side is AC connected to the side wall 58. / The DC adapter 60 can be regulated so as not to fall off.

  As described above, according to the present embodiment, when the power cable 83 of the network camera 3 is connected to the power cable connecting portion 7, the AC / DC adapter 60 in the middle of the power cable 83 is placed on the tray portion 55 of the camera mounting base 49. Therefore, it is not necessary to tie the AC / DC adapter 60 to the wiring duct D with an adhesive tape or the like so that the AC / DC adapter 60 does not float in the air, and the appearance is improved.

  Further, the extra length of the power cable 83 and the pre-length of the communication cable 82 can be stored in the tray portion 55, and the appearance can be further improved.

  In this embodiment, the stay main body 51 penetrates the bottom wall 47 of the tray portion 55. For example, the outer surface of the side wall 48 of the tray portion 55 is attached to the stay main body 51 via an attachment means such as a bracket. It may be of a different type.

(Second Embodiment)
FIG. 10 is a side view of the camera mount 49 of the second embodiment.

  As shown in FIG. 10, the camera mounting base 49 of the second embodiment has a side surface of the wiring duct D at the upper end of the side wall 58 of the tray portion 55, separately from the duct mounting portion 52 provided at the upper end of the stay main body 51. This is different from the above-described first embodiment in that the second duct mounting portion 90 that is locked to is integrally provided. Also in the second embodiment, the same effect as that of the first embodiment can be obtained by the tray portion 55. Further, since the camera mounting base 49 includes the first duct mounting portion 52 and the second duct mounting portion 90, there is an advantage that the mounting stability of the camera mounting base 49 is increased.

(Third embodiment)
FIG. 11 is a side view of the camera mount 49 of the third embodiment.

  As shown in FIG. 11, the camera mounting base 50 of the third embodiment is different from the second embodiment in that there is no stay main body 51 and a duct mounting portion 52 provided at the upper end of the stay main body 51. Specifically, in the camera mounting base 50 of the third embodiment, a duct mounting portion 90 is integrally provided at the upper end of the side wall 58 of the tray portion 55 and is supported by the wiring duct D only by the duct mounting portion 90. Thus, power is supplied from the duct mounting portion 90. A camera mounting portion 53 is provided on the bottom wall 57 of the tray portion 55, and the network camera 3 is supported by the camera mounting portion 53.

  Therefore, in the camera mount 50 of the third embodiment, the stay main body 51 is not necessary, and there is an advantage that the number of parts is reduced. Note that a cable insertion port for passing a cable may be provided in the bottom wall 57 of the tray portion 55.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in the above-described embodiment, power is supplied to the network camera via the PLC plug. However, the present invention can also be applied to a case where power is supplied without going through the PLC plug. That is, even if the camera mounting base is provided with an electric wire electrically connected to the conductor of the wiring duct and an outlet portion connected to the electric wire, the power cable of the network camera is connected to the outlet portion. By placing the AC / DC adapter of the power cable on the tray portion, the same effects as those of the above-described embodiment can be obtained. Various other modifications are possible.

1 is an overall view of a wiring duct system according to a first embodiment of the present invention. The state which attached the PLC plug for wiring ducts used for the wiring duct system to the wiring duct is shown, (a) is sectional drawing, (b) is the perspective view seen from the downward direction. It is the perspective view which looked at the PLC plug for wiring ducts same as the above from the upper part. It is a figure which shows the state of the attaching part at the time of attaching and detaching a housing to a wiring duct in the same as the above, (a) is a top view, (b) is a front view, (c) is a side view. It is a figure which shows the state of the attachment part at the time of attaching a housing to a wiring duct in the same as the above, (a) is a top view, (b) is a front view, (c) is a side view. It is a circuit diagram of the PLC plug for wiring ducts same as the above. It is a side view of the camera mounting base of 1st Embodiment. It is a schematic front view of the duct attachment part of the camera attachment part. It is a perspective view of the tray part of the camera attachment part. It is a side view of the camera mounting base of 2nd Embodiment. It is a side view of the camera mounting base of 3rd Embodiment.

Explanation of symbols

D Wiring duct 1 Slide rail 2 PLC plug 3 Network camera (network equipment)
5 Communication cable connecting part 6 Mounting part 7 Power cable connecting part 10 Conductor 49 Camera mounting base (network equipment mounting base)
50 Stay 51 Stay body 52 Duct mount 53 Camera mount (network equipment mount)
55 Tray part 60 AC / DC adapter 82 Communication cable 83 Power cable

Claims (2)

A wiring duct comprising: a slide rail portion attached to a building; and a conductor provided along the slide rail portion and connected to a power line routed in the building;
A mounting portion that is attached to the slide rail portion of the wiring duct and is electrically connected to a conductor of the wiring duct, a communication cable connection portion to which a communication cable of a network device is connected, and a power line carrier signal from the conductor of the wiring duct A power cable connection to which a modem that demodulates and transmits the data signal from the network device to a power line carrier signal and transmits it to the conductor of the wiring duct and the power cable of the network device A PLC plug for a wiring duct having a portion;
A network equipment mounting base used for a wiring duct system comprising:
The network device mounting base is attached to the wiring duct and supports the network device, and includes a tray portion on which an AC / DC adapter of a power cable of the network device can be placed. Equipment mount. A wiring duct comprising: a slide rail portion attached to a building; and a conductor provided along the slide rail portion and connected to a power line routed in the building;
A mounting portion that is attached to the slide rail portion of the wiring duct and is electrically connected to a conductor of the wiring duct, a communication cable connection portion to which a communication cable of a network device is connected, and a power line carrier signal from the conductor of the wiring duct A power cable connection to which a modem that demodulates and transmits the data signal from the network device to a power line carrier signal and transmits it to the conductor of the wiring duct and the power cable of the network device A PLC plug for a wiring duct having a portion;
A network equipment mounting base attached to the wiring duct and supporting the network equipment, the network equipment mounting base having a tray portion on which an AC / DC adapter of a power cable of the network equipment can be placed;
A wiring duct system comprising:

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