KR20170002745U - Power over network device and power over network system including the same - Google Patents

Abstract

The connection module 12 included in the power-over-network device 1 includes a pair of capacitors 121 and a power transformer 122 interconnecting the capacitors 121. The power over network device 1 is connected to one of a power plant (PSE) 800 and a powered device (PD) When connected to the PSE 800, the capacitor 121 receives the network signal and the power transformer 122 receives the network signal and the DC power signal to generate the power line signal. When connected to the PD 900, the power transformer 122 receives the power line signal and extracts the DC power signal from the power line signal, and the capacitor 121 of the connection module 12 receives the network signal, Block components.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power over network device and a power over network system including the power over network device.

[Cross reference to related application]

This invention claims priority from Taiwan Patent Application No. 105201016, filed on January 22, 2016.

The present invention relates to power over network systems including power over network devices and power over network devices.

In a power over Ethernet (PoE) network, power can be transmitted along with data over a single cable. For example, power source equipment (e.g., a network switch) and a powered device (e.g., a wireless router, a webcam, a Voice over Internet Protocol (VoIP) By using a cable with a RJ (Register Jack) 45 connector to power the device, the power facility can simultaneously transmit data and power to the power device to the device powered through the cable. The PoE network allows a powered device to operate without being electrically connected to a power source (e.g., a household outlet, battery, etc.).

Conventional Ethernet transformers are typically installed in a power plant to handle the transmission of data and power. Since various powered devices are configured to integrate more functionality, the power consumption of the various powered devices increases accordingly. As a result, it is required that a larger amount of power can be transmitted to the power supply facility. In order to meet the higher power demands, the size of the iron core of the Ethernet transformer can be made larger, and a larger diameter copper coil can be employed in the windings.

It is an object of the present invention to provide a power over network device capable of enabling a large amount of power transmission by a conventional Ethernet transformer without significantly increasing the size of a conventional Ethernet transformer.

According to the present invention, a power over network device includes at least one connection module. The connection module includes a pair of capacitors and a power transformer interconnecting the capacitors.

The power-over-network device is operable to be electrically connected to one of a power plant and a powered device.

Wherein the capacitor of the connection module is arranged to receive a network signal when the power over network device is electrically connected to the power supply facility and the power transformer of the connection module receives the network signal and the DC power signal, And to generate a power line signal to be transmitted to the powered device by combining the signal and the direct current power signal.

When the power over network device is electrically connected to the powered device, the power transformer of the connection module receives a power line signal from the power plant and extracts a DC power signal from the power line signal for the powered device Wherein after the DC power signal the remainder of the power signal is extracted to serve as a network signal and the capacitor of the connection module is arranged to receive the network signal and block the DC component of the network signal.

Another object of the present invention is to provide a power over network system using the above-mentioned power over network device.

In the present invention, a power over network system is for use with a power plant and a powered device, the power over network system including a first power over network device and a second power over network device.

The first power over network device is electrically connected to the power supply and includes a transmission end connection module. The transmission end connection module includes a pair of capacitors and a power transformer interconnecting the capacitors.

The second power-over network device is electrically connected to the powered device and includes a receiving end connection module. The receiver connection module includes a pair of capacitors and a power transformer interconnecting the capacitors.

Wherein the capacitor of the transmission end connection module is arranged to receive a network signal and the power transformer of the transmission end connection module receives the network signal and the direct current power signal and combines the network signal and the direct current power signal, And is arranged to generate a power line signal to be transmitted to the supplied device.

Wherein the power transformer of the receiving end connection module is arranged to receive a power line signal from the first power over network device and to extract a direct current power signal from the power line signal for the power supply of the powered device, The remainder of the power signal is extracted to serve as a network signal, and the capacitor of the receiving end connection module is arranged to receive the network signal and block the DC component of the network signal.

Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments with reference to the accompanying drawings.
1 is a cross-sectional view illustrating a power-over network device according to an embodiment of the present invention.
2 is a block diagram illustrating a power over network system according to an embodiment of the present invention.
3 is a schematic circuit diagram of a power over network system according to an embodiment of the present invention.

Before describing the present invention in more detail, it should be noted that, where appropriate, reference numerals have been repeated to indicate corresponding or similar elements that may optionally have similar characteristics.

1 is a cross-sectional view showing a first power-over-network device 1 according to an embodiment of the present invention.

2, the first power over network device 1 is intended for use in a network system including a power plant (PSE) 800 and a powered device (PD) The PSE 800 and the PD 900 may constitute a power over Ethernet (PoE) network. That is, the first power-over-network device 1 may be electrically connected to one of the PSE 800 and the PD 900. [

2, the power over network system includes a first power over network device 1 electrically connected to the PSE 800 and a second power over network device 1 electrically connected to the PD 900. [ Device (2).

The PSE 800 may be implemented using a network switch and includes a network signal generator 801 and a power supply 802. The network signal generator 801 is configured to generate a network signal. The power supply 802 is configured to generate a direct current (DC) power signal.

The PD 900 is implemented using a wireless router, a webcam, a VoIP device, etc., and acts as a load electrically connected to the PSE 800 using a cable having an RJ 45 connector (not shown) And the DC power signal may be transmitted to the PD 900 via a cable. The PD 900 includes a network signal receiver 901 and a power receiver 902.

The first power over network device 1 includes a housing 11, a first connection module 12 and a second connection module 12 '(see FIG. 3, only the first connection module 12 is shown in FIG. 1) ). In this embodiment, the first connection module 12 acts as a transmission end connection module of the transmitter circuit, and the second connection module 12 'acts as a reception end connection module of the receiver circuit.

The housing 11 in which the first connection module 12 and the second connection module 12 'are disposed includes a base 111, a circuit board 113, a plurality of connection pins 114 and a connector sheet 115 do. The base 111 is formed with a containing space 112 and the circuit board 113 is placed in the containment space 112. Each of the connection pins 114 extends through the circuit board 113 and the base 111 to fix the circuit board 113 to the base 111. [ The connector sheet 115 is disposed on the upper surface of the base 111 and is connected to the circuit board 113 through an electric wire.

It is noted that the second power-over-network device 2 has a structure similar to that of the first power-over-network device 1.

Referring to FIG. 3, each of the first connection module 12 and the second connection module 12 'includes a pair of capacitors and a power transformer interconnecting the capacitors.

Specifically, in the first connection module 12, two capacitors 121 and a power transformer 112 are provided. Each of the capacitors 121 includes a first terminal 123 and a second terminal 124 coupled to the power transformer 122. The second connection module 12 'has a similar structure and includes two capacitors 121' and a power transformer 122 '.

In use, each first terminal 123 of the capacitor 121 of the first connection module 12 is coupled to a network signal generator 801 to receive network signals therefrom. The second terminal 123 'of each of the capacitors 121' of the second connection module 12 'is connected to the network signal generator 801 and transmits a network signal therefor.

In each of the capacitors 121 and 121 ', the combination of the first terminal 123 and the second terminal 124 is to efficiently form a filter capable of blocking the DC component of the current signal flowing therebetween It is noted. Each of the capacitors 121 and 121 'may be configured to have a capacitance of 100 nF ± 10% and serve as a high impedance component to ensure that the DC power signal does not flow directly into the network signal generator 801 .

The power transformer 122 is coupled to the power supply 802 to receive a DC power signal therefrom and to combine the DC power signal from the power supply 802 and the network signal from the capacitor 121 to generate a power line signal do. Specifically, in order to generate a power line signal, the DC offset voltage of the network signal is changed.

The second power over network device 2 includes a housing (not shown), a first connection module 22 and a second connection module 22 '.

The first connection module 22 includes two capacitors 221 and a power transformer 222. Each of the capacitors 221 includes a first terminal 223 and a second terminal 224 connected to the power transformer 222. The second connection module 22 'has a structure similar to that of the first connection module 22 and includes two capacitors 221' and a power transformer 222 '. It is noted that each of the power transformers described herein can be implemented using an autotransformer or other configurations including an iron core or a copper coil.

In this embodiment, the first connection module 22 serves as a receiving end connection module of the receiver circuit and the second connection module 22 'serves as a transmission end connection module of the transmitter circuit.

The power transformer 222 is connected to the power receiver 902 and is arranged to receive power line signals from the first power over network device 1. [

The power transformer 222 is then configured to extract a DC power signal from the power line signal for the power receiver 902 of the PD 900 and provide the PD 900 with power for operation. The remainder of the power line signal is extracted after the DC power signal, which serves as a network signal and is fed to a capacitor 221. Capacitor 221 is coupled to network signal receiver 901 and is configured to block the DC component of the network signal before transmitting the remainder of the network signal to network signal receiver 901. [ It is noted that each of the capacitors 221 may be configured to have a capacitance of 100 nF ± 10% and serves as a component of high impedance to ensure that the DC power signal does not flow directly into the network signal receiver 901.

The first connection module 12 of the first power over network device 1 and the first connection module 22 of the second power over network device 2 are connected from the PSE 800 to the PD 900, Cooperatively form a circuit loop capable of transmitting signals. In this manner, the PD 900 may be operable without the need for additional external connection power, such as a battery.

In addition to the above-mentioned functions, the power over network system may further transmit the power line signal from the PD 900 to the PSE 800. [

Specifically, the capacitor 221 'of the second connection module 22' is connected to the network signal receiver 901 to receive the network signal from it. The power transformer 222 'is coupled to the power receiver 902 and is configured to receive a DC power signal therefrom and to generate a power line signal to be transmitted to the PSE 800 by combining the network signal and the DC power signal.

Returning to the first power over network device 1, the power transformer 122 'of the second connection module 12' receives the power line signal from the power transformer 222 'and sends the network signal to the capacitor 121' . The capacitor 121 'is configured to block the DC component of the network signal before allowing the remainder of the network signal to flow into the network signal generator 801.

The second connection module 22 'of the second power-over-network device 2 and the second connection module 12' of the first power-over-network device 1 receive the power line signal from the PD 900 And cooperatively form a circuit loop that can be transmitted to the PSE 800. [

In this configuration, each of the first power over network device 1 and the second power over network device 2 may be removably connected to the PSE 800 and PD 900 separately, (E.g., when the wireless router is used to serve as the PD 900), the power transformers 122 and 122 'each have a larger size to meet the increased power requirements Can be replaced.

In one embodiment, each of the first and second connection modules 12, 12 ', 22 and 22' is a surge protector for switching a power spike (e.g. caused by an emissive strike) May be provided to protect the first power over network device 1 and the second power over network device 2.

In summary, in the embodiment of the power over network system described in this disclosure, a pair of capacitors are connected to the first and second connection modules 12, 12 ', 22 and 22', respectively, to block the DC component of the network signal And the power transformer is provided to each of the first and second connection modules 12, 12 ', 22 and 22' to combine the network signal and the DC power signal to generate a power line signal. In this configuration, the power line signal may be transmitted between the PSE 800 and the PD 900 without using additional power components for the PD 900 for operation. Moreover, the size of the capacitors is relatively smaller and smaller than the components (e.g., iron core and copper wire) used in conventional power over Ethernet (PoE) networks, and smaller first and second connection modules 12, 12 ', 22 and 22 May be made smaller to receive housings 11 and 21 '.

In the foregoing description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that one or more other embodiments may be practiced without some of the specific details. It is also to be understood that reference throughout the specification to "one embodiment", "an embodiment" is an embodiment with an indication of ordinal, and that a particular feature, structure, or characteristic may be included in the practice of the disclosure. It should also be understood that, in the present description, a number of features may often be grouped together to facilitate understanding of the various aspects of the invention and the simplicity of disclosure in a single embodiment, figure, or description thereof.

While this disclosure has been described in connection with what is considered to be an embodiment, it is intended that the disclosure be not limited to the disclosed embodiments, but is to be accorded the widest scope consistent with the breadth and scope of the art to which the invention pertains, Structure.

Claims (12)

1. A power over network device comprising at least one connection module,
The connection module comprising a pair of capacitors and a power transformer interconnecting the capacitors,
Wherein the power over network device is operable to be electrically connected to one of a power plant and a powered device;
When the power-over network device is electrically connected to the power supply,
The capacitor of the connection module being arranged to receive a network signal,
Wherein the power transformer of the connection module is arranged to receive the network signal and a DC power signal and to generate a power line signal to be transmitted to the powered device by combining the network signal and the DC power signal;
When the power-over network device is electrically connected to the powered device,
Wherein the power transformer of the connection module is arranged to receive a power line signal from the power plant and to extract a direct current power signal from the power line signal for the powered device and the remainder of the power line signal after the direct current power signal is extracted And serves as a network signal,
Wherein the capacitor of the connection module is arranged to receive the network signal and to block the direct current component of the network signal. The power converter of claim 1, wherein the power plant comprises a network signal generator for generating the network signal, each of the capacitors of the connection module including a first terminal and a second terminal coupled to the power transformer, Wherein the network device is electrically connected to the power plant and the first terminal of each of the capacitors is coupled to the network signal generator to receive the network signal therefrom. The power module of claim 1, wherein the power plant comprises a power supply for generating the direct current power signal, and when the power over network device is electrically connected to the power plant, the power transformer of the connection module And to combine the DC power signal and the network signal to change a DC offset voltage of the network signal for generation of the power line signal. The power supply of claim 1, wherein the powered device comprises a power receiver, and when the power over network device is electrically connected to the powered device, the power transformer of the connection module And is coupled to the power receiver to provide a power signal to the power receiver. The power over network device of claim 1, wherein the powered device comprises a network signal receiver, wherein each of the capacitors of the connection module includes a first terminal and a second terminal coupled to the power transformer, Wherein the first terminal of each of the capacitors is coupled to the network signal receiver and provides the network signal to the network signal receiver when electrically connected to the powered device. The power over network device of claim 1, wherein the power transformer is an autotransformer. A power over network system for use with a power plant and a powered device, the power over network system comprising:
A first power over network device electrically coupled to the power supply facility, the first power over network device including a transmitting-end connection module, the transmission-end connection module including a pair of capacitors, Comprising a power transformer interconnecting; And
A second power over network device electrically connected to the powered device, the second power over network device including a receiving-end connection module, the receiving end connection module including a pair of capacitors and a capacitor, Comprising a power transformer interconnecting;
Wherein the capacitor of the transmission end connection module is arranged to receive a network signal and the power transformer of the transmission end connection module receives the network signal and the direct current power signal and combines the network signal and the direct current power signal, Arranged to generate a power line signal to be transmitted to the supplied device;
Wherein the power transformer of the receiving end connection module is arranged to receive a power line signal from the first power over network device and to extract the direct current power signal from the power line signal for the powered device, Wherein the rest of the power line signal is extracted to serve as a network signal and the capacitor of the receiving terminal connection module is arranged to receive the network signal and to block the direct current component of the network signal. The power converter of claim 7, wherein the power plant comprises a network signal generator for generating the network signal, wherein each of the capacitors of the transmit end connection module includes a first terminal and a second terminal coupled to the power transformer, Each said first terminal being coupled to said network signal generator and receiving said network signal therefrom. The power converter of claim 7, wherein the power plant comprises a power supply generating the direct current power signal, the power transformer of the transmission end connection module being coupled to the power supply to receive the direct current power signal therefrom, Power signal and the network signal to change a DC offset voltage of the network signal for generation of the power line signal. The power converter of claim 7, wherein the powered device comprises a power receiver, and the power transformer of the receiving end connection module is coupled to the power receiver to provide the DC power signal extracted from the power line signal to the power receiver. , A power over network system. The power converter of claim 7, wherein the powered device comprises a network signal receiver, each of the capacitors of the receiving end connection module including a first terminal and a second terminal coupled to the power transformer, Terminal is coupled to the network signal receiver and provides the network signal to the network signal receiver. 8. The power over network system of claim 7, wherein the power transformer included in each of the first power over network device and the second power over network device is an autotransformer.

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