JP2007088638A - Wiring device - Google Patents

Abstract

A wiring device supplies electric power to an electric device and enables power line communication.
A wiring device includes a function as a tap for extending a power supply range, a function as a PoE-compatible hub capable of branching a LAN data signal and supplying electric power to an electric device, and a power line communication modem ( Function as a PLC modem). A filter unit 18 is provided between the outlet unit 14 and the power line communication modem unit 16. It can suppress that the noise of the electric equipment connected to the outlet part 14 is transmitted to the power line communication modem part 16 and affects the data communication. For this reason, while maintaining the performance of data communication, it becomes easy to accommodate the outlet unit 14 and the power line communication modem unit 16 in the integrated housing 11 for miniaturization.
[Selection] Figure 1

Description

  The present invention relates to a wiring device capable of power supply and power line communication.

Conventionally, power line communication (PLC: Power Line Communication) has been proposed in which a high-frequency data signal is superimposed on a power line of a commercial AC power supply to enable bidirectional data communication along with power supply. A configuration is known in which a power line communication modem (PLC modem) that is used for power line communication and modulates or demodulates a data signal into a power line communication signal is incorporated in a wiring device that supplies power to an electrical device (for example, (See Patent Document 1). In the configuration of Patent Document 1, a plurality of outlets for supplying power to an electrical device are provided by connecting a power plug of the electrical device, and a LAN hub (concentrator) is provided in the PLC modem. It is connected and power line communication can be used from the LAN.
JP 2004-56766 A (Page 4, FIG. 1)

  However, if the outlet unit and the PLC modem are configured integrally, noise transmitted from the electrical equipment connected to the outlet unit affects the PLC modem, causing a reduction in communication speed. For electrical equipment connected to the hub using a LAN cable, it is necessary to separately connect the power plug of the power cord to the outlet for power supply. It has problems such as being easily tangled with the code.

  This invention is made in view of such a point, and it aims at providing the wiring apparatus which can supply electric power to an electric equipment and enables power line communication.

  The wiring device according to claim 1 includes: a power supply unit connected to a power line of an AC power supply; an outlet unit including an outlet connected to the power supply unit and supplied with power from the power supply unit; A power line communication modem unit that detects and receives a data signal from the power supplied from the unit, modulates the data signal, and sends the data signal to the power supply unit; and transmits / receives the data signal to / from the power line communication modem unit connected to the power line communication modem unit A modem connection unit, a power conversion unit that is connected to the power supply unit and generates DC power from the power supplied from the power supply unit, and a port that can be connected to the network to transmit and receive data signals and supply DC power A hub unit; and a filter unit that is disposed between the outlet unit and the power line communication modem unit and that allows AC power to pass through and removes noise. Those were.

  The port of the hub portion supplies DC power according to, for example, IEEE 802.3af standard.

  In this configuration, the electrical device connected to the port of the hub unit can be connected to the network via the hub unit and the power line communication modem unit, and power is supplied from the port. There is no need to separately connect power lines, the configuration is simplified and connection work is facilitated. In addition, power is supplied to the electrical equipment connected to the outlet. When noise enters the outlet from the electrical equipment connected to the outlet, the filter suppresses the noise from being transmitted to the power line communication modem and affecting data communication. For this reason, the outlet portion and the power line communication modem portion can be housed in an integral housing and can be miniaturized.

  The wiring device according to claim 2 is the wiring device according to claim 1, wherein a jack that constitutes a port of the hub portion; an indicator lamp that lights up when a DC power is supplied to the jack; a plug is connected to the jack And a turn-off means for stopping the lighting of the indicator lamp in a state where

  And in this structure, the state in which direct-current power was supplied to the jack which comprises the port of a hub part is confirmed by lighting of an indicator lamp. In addition, in a state where the plug is connected to the jack, the lighting of the indicator lamp is stopped, so that power is effectively used.

  The wiring device according to claim 3 includes: a power feeding unit connected to a power line of an AC power supply; a power outlet connected to the power feeding unit, and a power outlet supplied with power from the power feeding unit; A power line communication modem unit that detects and receives a data signal from the power supplied from the unit, modulates the data signal, and sends the data signal to the power supply unit; and transmits / receives the data signal to / from the power line communication modem unit connected to the power line communication modem unit A modem connection unit, a power conversion unit that is connected to the power supply unit and generates DC power from the power supplied from the power supply unit, and a port that can be connected to the network to transmit and receive data signals and supply DC power A hub part; a jack that constitutes a port of the hub part; an indicator lamp that lights up when DC power is supplied to the jack; and a plug that is connected to the jack In state, and off means for stopping the lighting of the display lamp; those provided with the.

  In this configuration, the electrical device connected to the port of the hub unit can be connected to the network via the hub unit and the power line communication modem unit, and power is supplied from the port. There is no need to separately connect power lines, the configuration is simplified and connection work is facilitated. In addition, power is supplied to the electrical equipment connected to the outlet. The state in which the DC power is supplied to the jack constituting the port of the hub portion is confirmed by the lighting of the indicator lamp. In addition, in a state where the plug is connected to the jack, the lighting of the indicator lamp is stopped, so that power is effectively used.

  According to the wiring device of the first aspect, the electrical device connected to the port of the hub part can be connected to the network via the hub part and the power line communication modem part, and power can be supplied from the port. There is no need to separately connect power lines, and the configuration can be simplified and the connection work can be facilitated. In addition, power can be supplied to the electrical equipment connected to the outlet. When noise enters the outlet from the electrical device connected to the outlet, the filter can suppress the noise from being transmitted to the power line communication modem and affecting data communication. For this reason, an outlet part and a power line communication modem part can be accommodated in an integral housing and can be miniaturized.

  According to the wiring device of the second aspect, in addition to the effect of the first aspect, it can be confirmed that the DC power is supplied to the jack constituting the port of the hub portion by lighting the indicator lamp. In addition, when the plug is connected to the jack, the lighting of the indicator lamp is stopped, so that the power can be used effectively.

  According to the wiring device of the third aspect, the electrical equipment connected to the port of the hub part can be connected to the network via the hub part and the power line communication modem part, and power can be supplied from the port. There is no need to separately connect power lines, and the configuration can be simplified and the connection work can be facilitated. In addition, power can be supplied to the electrical equipment connected to the outlet. Furthermore, it is possible to confirm a state in which DC power is supplied to a jack constituting the port of the hub portion by lighting the indicator lamp. In addition, when the plug is connected to the jack, the lighting of the indicator lamp is stopped, so that the power can be used effectively.

  Hereinafter, an embodiment of a wiring device of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram showing an embodiment of a wiring device of the present invention. FIG. 2 is a perspective view of the wiring device. FIG. 3 is an explanatory view showing a state where no plug is connected to the jack of the port of the hub portion of the wiring device. FIG. 4 is an explanatory view showing a state in which a plug is connected to a jack of a port of the hub portion of the wiring device. FIG. 5 is a block diagram showing another embodiment of the wiring device of the present invention. FIG. 6 is an explanatory view of a part of the hub portion showing still another embodiment of the wiring device of the present invention.

  In FIG. 1, reference numeral 1 denotes a wiring device that is embedded in an indoor wall. A power line is connected to an outlet 2 of the wiring device 1, and a commercial AC power supply of 50 Hz or 60 Hz is supplied at 100 V. For example, a data signal of 2 MHz to 30 MHz is superimposed on the power line, and power line communication (PLC) is possible.

  1 and 2, reference numeral 10 denotes a wiring device. The wiring device 10 is connected to the outlet 2 of the wiring device 1 by a single casing 11 and functions as a tap for extending the power supply range. And a function as a so-called PoE-compatible hub, which is a concentrator capable of branching data signals of a local area network (hereinafter referred to as LAN) as a network and supplying power to the LAN, and a power line communication modem (PLC modem) It combines the functions of

  The casing 11 has a flat rectangular box shape, and the power supply unit 12, the outlet unit 14, the power line communication modem unit 16, the hub unit 17, and the filter unit 18 are accommodated in the casing 11, or a part thereof. Is stored in an exposed state.

  The power supply unit 12 includes a power cord 21 led out from one end surface of the housing 11 directly or through a socket and a plug (not shown). A power plug 22 connected to the outlet 2 is provided.

  In addition, the outlet unit 14 includes one or a plurality of outlets 24 in the present embodiment, which are provided on one side surface of the housing 11 and are connected to the power feeding unit 12 through the filter unit 18 respectively. It can be supplied and functions as a so-called table tap that extends by pulling out the outlet circuit.

  The power line communication modem unit 16 transmits and receives data signals using the power line, is connected to the power supply unit 12 without passing through the filter unit 18, and separates and demodulates the data signal superimposed on the power line, or The data signal is modulated and superimposed on the power line.

  The hub unit 17 is a LAN concentrator such as Ethernet (registered trademark). The hub unit 17 includes one or a plurality of ports 31 in the present embodiment on the other side surface of the casing 11, and four casings 31 in the present embodiment. One modem port 33 connected to the power line communication modem unit 16 via the signal line 32 is provided inside the body 11, and these ports 31 and 33 are connected to each other. That is, each port 31 includes a jack 34 called a modular jack or the like, and a terminal portion 35 connected to a copper wire of 4 to 8 cores is provided inside the jack 34 as shown in FIGS. It has been. Then, the plug 37 of the LAN cable 36 inserted from the outside of the housing 11 is mechanically engaged with the jack 34 to be prevented from coming off, and the terminal portion of the plug 37 is in contact with the terminal portion 35 to electrically To be connected to.

  Further, the hub unit 17 is compatible with so-called PoE (Power over Ethernet (registered trademark)), and can supply power to the connected electrical device via the LAN cable 36. For example, in accordance with the standard of IEEE 802.3af, a DC power supply of 15.4 W at the maximum per port 33 is supplied at 48V. For PoE, pattern A that uses half of 2 to 4 cores out of 4 to 8 core copper wires to supply data signals and power, and 2 to 4 core copper to be used for data signals. There is a pattern B in which power is supplied using a 2-to-4 core copper wire different from the wire and can be selected on the power supply side, but in this embodiment, 1, 2, 3, 6 A pattern B is used in which data signals are transmitted and received through the numbered core wires and power is supplied through the numbered core wires of 7, 8, 5, and 4.

  The hub unit 17 includes a DC / AC converter (AC / DC converter) (not shown) that constitutes a power supply unit connected to the power feeding unit 12 via the filter unit 18 in order to realize PoE. Create and supply to each port.

  Note that power for driving the power line communication modem unit 16 is supplied to the power line communication modem unit 16 by a power source unit housed in the casing integrally or separately from the power source unit. The power line communication modem unit 16 can also supply power from the modem port 33 by the PoE method.

  Further, the hub portion 17 turns on the indicator lamp 41 that lights up when the PoE DC power is supplied to the jack 34 of each port 31, and the indicator lamp 41 lights up when the plug 37 is connected to the jack 34. And extinguishing means 42 for stopping. That is, an indicator lamp 41 using a light emitting diode or the like is provided on the front face of each port 31 in the vicinity of the jack 34. The indicator lamp 41 is shown in FIGS. 3 (b) and 4 (b). In addition, the lighting circuit is configured to receive power directly from the PoE DC power supply line and insert a resistor 43 having an appropriate resistance value, and in a state where the PoE DC power is supplied, a PoE supply lamp A certain indicator light 41 lights up.

  On the other hand, the extinguishing means 42 is connected in series with the indicator lamp 41 of the lighting circuit, and is configured by a push button switch that is always on and turned off when pushed. The operating portion 45 of this push button switch is located at the back side in the jack 34. It is arrange | positioned so that protrusion is possible. Therefore, when the plug 37 is not connected to the jack 34, as shown in FIGS. 3A and 3B, the push button switch operating portion 45 projects into the jack 34 and the push button switch is turned on. When the PoE DC power is supplied, the indicator lamp 41 is turned on. When the plug 37 is connected to the jack 34, as shown in FIGS. 4 (a) and 4 (b), the operating unit 45 is pushed to turn off the push button switch, and the PoE DC power supply is turned off. Regardless of the presence or absence, the indicator light 41 is turned off.

  The filter unit 18 is also called a blocking filter or a block filter. As shown in FIG. 1, the filter unit 18 is provided between the power supply unit 12 and the outlet unit 14 and between the outlet unit 14 and the power line communication modem unit 16. In other words, it is arranged immediately after the power line communication modem unit 16. And while this filter part 18 lets a commercial alternating current power supply pass, it interrupts | blocks (blocks) the signal of the frequency band of 2 MHz-30 MHz used for noise and power line communication. That is, the filter unit 18 blocks noise generated in an electrical device that is connected to the outlet unit 14 via the plug 46 and supplies power, and this noise conducts and affects the operation of the power line communication modem unit 16. This can be suppressed.

  As described above, according to the wiring device 10 of the present embodiment, an electrical device such as a LAN device such as an IP telephone connected to the port 31 of the hub unit 17 is connected via the hub unit 17 and the power line communication modem unit 16. In addition, data communication can be performed by connecting to the internal and external networks of the wiring device 10, and PoE DC power can be supplied from the port 31. Therefore, it is not necessary to separately connect a power line to an electric device such as an IP telephone, so that the configuration can be simplified and the connection work can be facilitated.

  Further, since the outlet portion 14 is provided, power can be supplied to the electrical equipment connected to the outlet 24 of the outlet portion 14. At this time, it is conceivable that noise enters the outlet unit 14 from the electrical equipment connected to the outlet unit 14, but since the filter unit 18 corresponding to the frequency used for power line communication is provided, the noise is transmitted from the outlet unit 14 to the power line communication. It is possible to suppress the transmission to the modem unit 16 and the influence on the data communication. For this reason, while maintaining the performance of data communication, it becomes easy to accommodate the outlet unit 14 and the power line communication modem unit 16 in the integrated housing 11 for miniaturization.

  Furthermore, in a PoE-compatible hub, a voltage of 48 V is applied to each port 31 of the hub portion 17, but the presence or absence of PoE power, that is, the supply state can be confirmed by lighting the indicator lamp 41 provided on the front surface of the port 31. In this embodiment, it is possible to clearly confirm the state in which the PoE DC power is supplied to the jack 34 of the port 31 that is not in use, the handling of the wiring device 10 can be facilitated, and the power supply of PoE power can be stopped. Simple failure diagnosis is possible.

  Further, in the state where the plug 37 is connected to the jack 34 of the port 31, the extinguishing means 42 for stopping the lighting of the indicator lamp 41 is provided, so that, for example, a PoE DC power source set to 15.4 W at maximum is wasted. It can be used effectively without any problems.

  In addition, by providing a power supply unit that supplies power to the hub unit 17 and the power line communication modem unit 16 in the housing 11, the configuration can be simplified and the wiring device 10 can be easily handled.

  In this way, according to the wiring device 10 of the present embodiment, the power line communication modem and the PoE compatible hub are integrally configured in the tap casing 11, in other words, the tap, the power line communication modem, and the PoE compatible hub. Since the power line communication modem and PoE hub can be supplied inside the tap, it is easy and easy to communicate with LAN and use PoE DC power for non-PLC compatible electrical equipment. Depending on the situation, commercial AC power can be supplied from the outlet 14. Compared to a configuration in which a power line communication modem is provided for each dedicated device such as a television, communication signals can be supplied to other devices that are not compatible with PLC, and versatile use is possible.

  In the above-described embodiment, the filter unit 18 that cuts off the signal in the frequency band used for power line communication is provided. However, as shown in FIG. 24 can also enable power line communication.

  Further, as shown in FIG. 6, the indicator lamp 41 can be turned on or off according to the supply of the PoE DC power supply without providing the light-off means 42.

  Further, for each port 31 of the hub portion 17, a lid portion that can be opened and closed when the jack 34 is not used can be provided.

  The present invention can be used, for example, as a wiring device for connecting an IP telephone.

It is a block diagram which shows one Embodiment of the wiring apparatus of this invention. It is a perspective view of a wiring apparatus same as the above. It is explanatory drawing of the state in which the plug is not connected to the jack of the port of the hub part of a wiring apparatus same as the above. It is explanatory drawing of the state by which the plug was connected to the jack of the port of the hub part of a wiring apparatus same as the above. It is a block diagram which shows other embodiment of the wiring apparatus of this invention. It is explanatory drawing of the one part hub part which shows other embodiment of the wiring apparatus of this invention.

Explanation of symbols

10 Wiring equipment
12 Power supply unit
14 Outlet section
16 Power line communication modem section
17 Hub part
18 Filter section
34 Jack
41 Indicator light
42 Light-off method

Claims (3)

A power supply connected to the power line of the AC power supply;
An outlet unit connected to the power supply unit and provided with an outlet to which power is supplied from the power supply unit;
A power line communication modem unit connected to the power supply unit for detecting and receiving a data signal from the power supplied from the power supply unit and modulating the data signal and sending it to the power supply unit;
Connected to a power line communication modem unit connected to a power line communication modem unit, a modem connection unit for transmitting / receiving data signals to / from the power line communication modem unit, connected to a power supply unit to generate a DC power from the power supplied from the power supply unit, and connected to a network A hub portion having a port capable of transmitting and receiving data signals and supplying DC power;
A filter unit that is disposed between the outlet unit and the power line communication modem unit and that allows AC power to pass through and removes noise;
A wiring device comprising: A jack constituting the port of the hub part;
An indicator lamp that lights up when DC power is supplied to the jack;
An extinguishing means for stopping the lighting of the indicator light with the plug connected to the jack;
The wiring device according to claim 1, comprising: A power supply connected to the power line of the AC power supply;
An outlet unit connected to the power supply unit and provided with an outlet to which power is supplied from the power supply unit;
A power line communication modem unit connected to the power supply unit for detecting and receiving a data signal from the power supplied from the power supply unit and modulating the data signal and sending it to the power supply unit;
Connected to a power line communication modem unit connected to a power line communication modem unit, a modem connection unit for transmitting / receiving data signals to / from the power line communication modem unit, connected to a power supply unit to generate a DC power from the power supplied from the power supply unit, and connected to a network A hub portion having a port capable of transmitting and receiving data signals and supplying DC power;
A jack constituting the port of the hub part;
An indicator lamp that lights up when DC power is supplied to the jack;
An extinguishing means for stopping the lighting of the indicator light with the plug connected to the jack;
A wiring device comprising:

Images