CN202218226U - Network transmission device capable of outputting DC power source - Google Patents
Network transmission device capable of outputting DC power source Download PDFInfo
- Publication number
- CN202218226U CN202218226U CN2011202690696U CN201120269069U CN202218226U CN 202218226 U CN202218226 U CN 202218226U CN 2011202690696 U CN2011202690696 U CN 2011202690696U CN 201120269069 U CN201120269069 U CN 201120269069U CN 202218226 U CN202218226 U CN 202218226U
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- China
- Prior art keywords
- power
- coaxial cable
- transmission device
- network transmission
- power source
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a network transmission device capable of outputting a DC power source. The network transmission device comprises a coaxial cable and power devices connected thereon. The power DC\DC converter input terminals of the power devices are connected with the coaxial cable via inductors. The network transmission device is characterized in that the power AC\DC converter input terminal of one of the power devices is connected with an AC power source; and the power device is provided with two output terminals, wherein one output terminal is connected with the power device, and the other output terminal is connected with the coaxial cable via one inductor. Only one AC power obtaining port is needed to satisfy the demand of power supply for a whole line, such that the cost of construction and maintenance is reduced, and the power utilization of the whole line is convenient to be metered. A switch power source is adopted for AC\DC conversion, thereby improving the power conversion efficiency and reducing the amount of power consumption. The network transmission device of the utility model enables all power devices to be minimized in volume and to be reduced in cost, and can work stably and reliably.
Description
Technical field
The utility model provides a kind of web-transporting device, and especially a kind of web-transporting device of exportable DC power supply belongs to the web-transporting device technical field.
Background technology
Existing Network Transmission signal such as radiofrequency signal, digital signal, analog signal etc.; In transmission course, have decay more or less; For making the terminal reach enough signal strength signal intensities; To guarantee transmission quality, must use equipment such as signal amplifier, signal converter, switch in the transmission network.The use of these equipment be unable to do without power supply, provides the mode of power supply to have following two kinds to these equipment at present:
1, exchanges centralized power supply system: promptly adopt the centrally connected power supply device AC power to be transferred to above-mentioned power consumption equipment through cable.The advantage of this supply power mode is that the whole piece circuit has only a power taking mouth, and easy construction be convenient to and the power supply department clearing electricity charge, but this kind supply power mode must be used an AC power transducer, and to convert alternating current to low pressure by high pressure, therefore, cost is high.
2, independently-powered mode: promptly the above-mentioned power consumption equipment on the circuit is supplied power separately.The advantage of this supply power mode is to use the AC power that adds; Cost is lower with respect to exchanging centralized power supply system; But because each power consumption equipment is general at a distance of hundreds of rice is all arranged; So the electricity charge of each power consumption equipment are metering separately, this increases difficulty just for construction, has also increased cost simultaneously.
Therefore, be necessary prior art is improved.
Summary of the invention
For overcoming the above-mentioned deficiency that prior art exists, the utility model provides a kind of web-transporting device that can the output DC source in transmission signals, to reduce cost, makes things convenient for the metering of the electricity charge.
The utility model provides the web-transporting device in a kind of like this ability output DC source; Comprise coaxial cable, be connected the power consumption equipment on the coaxial cable, the power supply DC/DC transducer input of power consumption equipment links to each other with coaxial cable through inductance; It is characterized in that wherein the power supply AC/DC transducer input of a power consumption equipment links to each other with AC power; Output is made as two, and one of them output links to each other with this power consumption equipment, and another output links to each other with coaxial cable through inductance.After converting alternating current to direct current, the one road supplies with this power consumption equipment, and mix with the signal of device port through inductance on another road, and gives the network equipment that links to each other with cable through cable transmission.
The utlity model has advantage and effect: adopt such scheme, only need one to exchange the power demands that the power taking mouth just can satisfy the whole piece circuit, both reduced construction, construction, maintenance cost, also made things convenient for the electricity consumption metering of whole piece circuit.Switching Power Supply is adopted in the AC/DC conversion, has improved power supply conversion efficiency, reduces power consumption, and each power consumption equipment volume is reduced, and cost reduces, working stability, reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be further described.
Like Fig. 1; The web-transporting device in the ability output DC source that the utility model provides; Comprise coaxial cable 2, be connected many power consumption equipment W1, W2, W3 on the coaxial cable 2 ... Wn, power supply DC/DC transducer 3 inputs of each power consumption equipment link to each other with coaxial cable 2 through inductance 4; Power supply AC/DC transducer 6 inputs of a power consumption equipment W1 wherein link to each other with AC power; Output is made as two, and one of them output links to each other with this power consumption equipment W1, and another output links to each other with coaxial cable 2 through inductance 1.After converting alternating current to direct current, the one road supplies with power consumption equipment W1, and mix with signal on the coaxial cable 2 through inductance 1 on another road, and is transferred to network equipment W2, the W3 that links to each other with coaxial cable 2 through coaxial cable 2 ... Wn.
Claims (1)
1. the web-transporting device in an ability output DC source; Comprise coaxial cable, be connected the power consumption equipment on the coaxial cable, the power supply DC/DC transducer input of power consumption equipment links to each other with coaxial cable through inductance; It is characterized in that wherein the power supply AC/DC transducer input of a power consumption equipment links to each other with AC power; Output is made as two, and one of them output links to each other with this power consumption equipment, and another output links to each other with coaxial cable through inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202690696U CN202218226U (en) | 2011-07-27 | 2011-07-27 | Network transmission device capable of outputting DC power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202690696U CN202218226U (en) | 2011-07-27 | 2011-07-27 | Network transmission device capable of outputting DC power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202218226U true CN202218226U (en) | 2012-05-09 |
Family
ID=46017451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202690696U Expired - Fee Related CN202218226U (en) | 2011-07-27 | 2011-07-27 | Network transmission device capable of outputting DC power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202218226U (en) |
-
2011
- 2011-07-27 CN CN2011202690696U patent/CN202218226U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20170727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |