CN204119048U - The special feed conversion power source device of broadcasting and TV - Google Patents
The special feed conversion power source device of broadcasting and TV Download PDFInfo
- Publication number
- CN204119048U CN204119048U CN201420640480.3U CN201420640480U CN204119048U CN 204119048 U CN204119048 U CN 204119048U CN 201420640480 U CN201420640480 U CN 201420640480U CN 204119048 U CN204119048 U CN 204119048U
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- China
- Prior art keywords
- power
- module
- feed conversion
- feed
- electric power
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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 relates to broadcasting and TV power technique fields, and be the special feed conversion power source devices of a kind of broadcasting and TV, it includes spider lines loop, feed conversion electric power housing, subordinate's amplifier and power consumption equipment; In feed conversion electric power housing, be provided with feed conversion electric power, feed conversion electric power comprises AC-DC conversion module, switch power module, inversion module and ring outgoing interface; AC-DC conversion module, switch power module, inversion module are sequentially electrically connected.The utility model is rational in infrastructure, easy to use, when inputting feed voltage excursion and being very large (30-60VAC), feed conversion electric power still can ensure that 220VAC stable alternating-current power voltage exports power supply, feed conversion electric power has feed and hoop goes out functional interface, can continue, to subordinate's amplifier supply feed and signal, therefore at optimum position advancing equipment, not only can facilitate construction but also significantly reduce cost during construction.
Description
Technical field
The utility model relates to broadcasting and TV power technique fields, is the special feed conversion power source devices of a kind of broadcasting and TV.
Background technology
In the transformation of cable network Two-way Network, due to surrounding environment limitation, such as when concealed wire, buried circuit etc. cannot again threading power transmission, or when field work does not have a 220V AC power supplies, cause the Two-way Network equipment such as EOC, ONU, switch cannot obtain 220V AC working power, the installation that can only the place of 220V AC power supplies had to carry out the Two-way Network equipment such as EOC, ONU, switch, cause at the position erection unit of the best, thus the problem of improvement cost increase and constructional difficulties to be caused.
Summary of the invention
The utility model provides the special feed conversion power source device of a kind of broadcasting and TV, overcome the deficiency of above-mentioned prior art, it is when inputting feed voltage excursion and being very large (30-60VAC), feed conversion electric power still can ensure that 220VAC stable alternating-current power voltage exports power supply, feed conversion electric power has feed and hoop goes out functional interface, can continue to subordinate's amplifier supply feed and signal, therefore at optimum position advancing equipment, not only can facilitate construction but also significantly reduce cost during construction.
The special feed conversion power source device of a kind of broadcasting and TV, includes spider lines loop, feed conversion electric power housing, subordinate's amplifier and power consumption equipment; In feed conversion electric power housing, be provided with feed conversion electric power, feed conversion electric power comprises AC-DC conversion module, switch power module, inversion module and ring outgoing interface; AC-DC conversion module, switch power module, inversion module are sequentially electrically connected, cable network loop is electrically connected by coaxial cable and AC-DC conversion module, cable network loop is linked together by ring outgoing interface and subordinate's amplifier electric, and inversion module is electrically connected by wire and power consumption equipment.
Above-mentioned power consumption equipment is EOC or ONU or switch.
The utility model is rational in infrastructure, easy to use, when inputting feed voltage excursion and being very large (30-60VAC), feed conversion electric power still can ensure that 220VAC stable alternating-current power voltage exports power supply, feed conversion electric power has feed and hoop goes out functional interface, can continue, to subordinate's amplifier supply feed and signal, therefore at optimum position advancing equipment, not only can facilitate construction but also significantly reduce cost during construction.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model.
Coding in figure is respectively: 1 is cable network loop, and 2 is subordinate's amplifier, and 3 is power consumption equipment, and 4 is AC-DC conversion module, and 5 is switch power module, and 6 is inversion module, and 7 is coaxial cable.
Embodiment
As shown in Figure 1, the special feed conversion power source device of these broadcasting and TV includes spider lines loop 1, feed conversion electric power housing, subordinate's amplifier 2 and power consumption equipment 3; In feed conversion electric power housing, be provided with feed conversion electric power, feed conversion electric power comprises AC-DC conversion module 4, switch power module 5, inversion module 6 and ring outgoing interface; AC-DC conversion module 4, switch power module 5, inversion module 6 are sequentially electrically connected, cable network loop 1 is electrically connected by coaxial cable 7 and AC-DC conversion module 4, cable network loop 1 is electrically connected by ring outgoing interface and subordinate's amplifier 2, and inversion module 6 is electrically connected by wire and power consumption equipment 3.During work, 30 to the 60VAC alternating current that cable network loop 1 is inputted by coaxial cable 7 is converted to low-voltage DC by AC-DC conversion module 4, low-voltage DC is converted to stable high voltage direct current by switch power module 5, high voltage direct current inversion is that stable 220VAC alternating current exports by inversion modular converter 6, and 220VAC ac power output is connected with the attaching plug of power consumption equipment 3.When inputting feed voltage excursion and being very large (30-60VAC), feed conversion electric power still can ensure that 220VAC stable alternating-current power voltage exports power supply.Feed conversion electric power has feed and hoop goes out functional interface, can continue to supply feed and signal to subordinate's amplifier 2, and cable TV signal is when 550MHZ transmission frequency, and ring goes out insertion loss at about 4DB.Feed conversion electric power can also use as cable TV worker emergency power supply in network construction maintenance, and cable network loop 1, AC-DC conversion module 4, switch power module 5, inversion module 6 are existing known technology.
As shown in Figure 1, according to actual requirement, power consumption equipment 3 can be EOC or ONU or switch.EOC or ONU or switch are existing known technology.
Claims (2)
1. the special feed conversion power source device of broadcasting and TV, is characterized in that including spider lines loop, feed conversion electric power housing, subordinate's amplifier and power consumption equipment; In feed conversion electric power housing, be provided with feed conversion electric power, feed conversion electric power comprises AC-DC conversion module, switch power module, inversion module and ring outgoing interface; AC-DC conversion module, switch power module, inversion module are sequentially electrically connected, cable network loop is electrically connected by coaxial cable and AC-DC conversion module, cable network loop is linked together by ring outgoing interface and subordinate's amplifier electric, and inversion module is electrically connected by wire and power consumption equipment.
2. the special feed conversion power source device of broadcasting and TV according to claim 1, is characterized in that power consumption equipment is EOC or 0NU or switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640480.3U CN204119048U (en) | 2014-10-21 | 2014-10-21 | The special feed conversion power source device of broadcasting and TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640480.3U CN204119048U (en) | 2014-10-21 | 2014-10-21 | The special feed conversion power source device of broadcasting and TV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119048U true CN204119048U (en) | 2015-01-21 |
Family
ID=52336324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420640480.3U Expired - Fee Related CN204119048U (en) | 2014-10-21 | 2014-10-21 | The special feed conversion power source device of broadcasting and TV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204119048U (en) |
-
2014
- 2014-10-21 CN CN201420640480.3U patent/CN204119048U/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: 20150121 Termination date: 20161021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |