CN102695030A - Lightning-proof load of television signal transmission terminal - Google Patents
Lightning-proof load of television signal transmission terminal Download PDFInfo
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- CN102695030A CN102695030A CN2012101832275A CN201210183227A CN102695030A CN 102695030 A CN102695030 A CN 102695030A CN 2012101832275 A CN2012101832275 A CN 2012101832275A CN 201210183227 A CN201210183227 A CN 201210183227A CN 102695030 A CN102695030 A CN 102695030A
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- transmission terminal
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Abstract
The invention discloses a lightning-proof load of a television signal transmission terminal and relates to a device for television signal transmission. In order to solve the problem that the conventional television signal transmission terminal load does not have a lightning-proof structure and a lightning-proof function, the invention adopts the technical scheme that the lightning-proof load of the television signal transmission terminal comprises an inner conductor, an insulating sealing sleeve, a load resistor and a metal connection sleeve, wherein the inner conductor comprises a pin; the insulating sealing sleeve is sleeved at the periphery of the tail of the pin of the inner conductor; a wire inlet end of the load resistor is welded at the tail of the pin of the inner conductor; the metal connection sleeve is sleeved at the periphery of the insulating sealing sleeve; and a wire outlet end of the load resistor is connected to an inner cavity of the metal connection sleeve. The lightning-proof load of the television signal transmission terminal is characterized in that the load resistor consists of a 75ohm chip resistor and a 12.2NF chip capacitor which is connected in series with the 75ohm chip resistor. By trial, when thunderstorm in the sky generates lightning stroke, lightning stroke electromagnetic pulse can be limited to hardly break the 75ohm chip resistor through the chip capacitor, so the television signal transmission terminal load cannot be broken, and the normal operation of the whole television signal transmission network is ensured.
Description
Technical field: the present invention relates to a kind of TV signal transmission and use device, the anti-thunderbolt of particularly a kind of TV signal transmission terminal load.
Background technology: according to the rule of high-frequency signal transmission, the transmission line two ends of open circuit are not because there is the load meeting to demonstrate high impedance.There is such rule equally in the transmission of TV signal; When the client terminal of TV signal transmission did not insert the user, TV signal formed standing wave being sent to the vacant line end back end that can rebound; Return standing wave can overlap with normal signal, has disturbed normal TV signal to transmit.Therefore, the vacant terminal of TV signal transmission line must the adjunction terminate load.The TV signal transmission terminal load of prior art; Like one Chinese patent application 201120481836.X; Disclose a kind of " load of TV signal transmission terminal ", it prevents the 26S Proteasome Structure and Function of thunderbolt as the TV signal transmission terminal load of existing similar purposes.
When the thunderstorm of sky produces thunderbolt; Thunder and lightning will carry high load capacity lightening pulse, voltage and electric current; And with the random release of electromagnetic wave form, thereby cause the cable of cable TV in 1～5 kilometer range of territory, minefield, moment internal induction to the pulse voltage and the electric current of respective strengths; Get into terminate load along cable; When thunderbolt voltage surpasses the specified reactance voltage of TV signal transmission terminal load, the only moment TV signal transmission terminal load of just breaking, thus influence the normal operation of whole TV signal transmission network.This shows that it is necessary studying and design a kind of anti-thunderbolt of TV signal transmission terminal load with the function that prevents to be struck by lightning.
Summary of the invention: the objective of the invention is to overcome the deficiency of prior art, study and design a kind of anti-thunderbolt of TV signal transmission terminal load with the function that prevents to be struck by lightning.
The objective of the invention is to realize like this: the anti-thunderbolt of a kind of TV signal transmission terminal load; Comprise the inner wire that contact pin constitutes; Be socketed on the insulated enclosure cover of inner wire contact pin afterbody periphery; The end of incoming cables is welded in the load resistance of inner wire contact pin tail end, and the metal that is socketed on insulated enclosure cover periphery overlaps in succession, and said load resistance leading-out terminal is connected in and overlaps inner chamber in succession; It is characterized in that the Chip-R of described load resistance by 75 ohm of resistance values, the patch capacitor of the capacitance 12.2NF that connects with 75 ohm Chip-R constitutes.
The object of the invention can also be with taking following further technical measures to realize:
The load resistance that said end of incoming cables is welded in inner wire contact pin tail end is meant: the Chip-R end of incoming cables is welded in inner wire contact pin tail end.Described load resistance leading-out terminal is connected in and overlaps inner chamber in succession and be meant: the bend apical grafting behind crooked 180 degree of patch capacitor leading-out terminal lead is in the intracavity bottom of cover in succession.Being electrically connected of the Chip-R of said composition load resistance and patch capacitor is the printed circuit realization by being positioned on the insulation board.
Described metal overlaps the leading section inner chamber in succession and is designed with to connect and uses screw thread.The described periphery of overlapping in succession is designed with the fastening hexagon annular projection of using.Describedly overlap the cup cover shape that rearward end is designed to hold load resistance in succession.
The TV signal transmission terminal that the present invention implements to obtain is prevented the thunderbolt load, has shown following beneficial effect through trying out:
Compare with the TV signal transmission terminal load of existing similar purposes, constitute by the patch capacitor of the Chip-R of 75 ohm of resistance values at load resistance in the structure of the present invention with the capacitance 12.2NF that connects with it.12.2NF the patch capacitor metal that is series at 75 ohm Chip-R and ground connection overlap in succession between, LEMP is not taking place at ordinary times on the one hand, can reduce return intensity of standing wave greatly, avoided interference normal TV signal and transmitted; On the other hand when the thunderstorm of sky produces thunderbolt; LEMP can pass through patch capacitor; LEMP is suppressed to 75 ohm the degree of Chip-R of being difficult to break; Therefore the TV signal transmission terminal load of can not breaking, thus the normal operation of whole TV signal transmission network guaranteed.
Description of drawings: Fig. 1 is the sketch map that meets thematic structure of the present invention; Fig. 2 is a load resistance structural representation of the present invention.
Embodiment: implementation detail of the present invention has been explained as follows below in conjunction with accompanying drawing:
Like Fig. 1, shown in 2; The anti-thunderbolt of a kind of TV signal transmission terminal load; Comprise the inner wire 1 that contact pin constitutes, be socketed on the insulated enclosure cover 2 of inner wire contact pin afterbody periphery, the end of incoming cables is welded in the load resistance 3 of inner wire contact pin tail end; The metal that is socketed on insulated enclosure cover periphery overlaps 4 in succession; Said load resistance leading-out terminal 33 is connected in and overlaps inner chamber in succession, it is characterized in that the Chip-R 31 of described load resistance by 75 ohm of resistance values, and the patch capacitor 32 of the capacitance 12.2NF that connects with 75 ohm Chip-R constitutes.
As shown in Figure 2, the load resistance 3 that said end of incoming cables is welded in inner wire contact pin tail end is meant: Chip-R 31 ends of incoming cables are welded in inner wire 1 contact pin tail end.
Like Fig. 1, shown in 2, described load resistance 3 leading-out terminals are connected in and overlap 4 inner chambers in succession and be meant: the bend apical grafting behind crooked 180 degree of patch capacitor 32 leading-out terminal leads is in the intracavity bottom that overlaps 4 in succession.
As shown in Figure 2, the Chip-R 31 of said composition load resistance 3 is to be realized by the printed circuit 34 that is positioned on the insulation board 30 with being electrically connected of patch capacitor 32.
As shown in Figure 1, described metal overlaps 4 leading section inner chambers in succession and is designed with connection with screw thread 41.Described 4 peripheries of overlapping in succession are designed with fastening with hexagon annular projection 42.
As shown in Figure 1, describedly overlap the cup cover shape 43 that 4 rearward end are designed to hold load resistance 3 in succession.
Claims (7)
1. the anti-thunderbolt of TV signal transmission terminal load; Comprise the inner wire (1) that contact pin constitutes; Be socketed on the insulated enclosure cover (2) of inner wire contact pin afterbody periphery; The end of incoming cables is welded in the load resistance (3) of inner wire contact pin tail end, and the metal that is socketed on insulated enclosure cover periphery overlaps (4) in succession, and said load resistance leading-out terminal (33) is connected in and overlaps inner chamber in succession; It is characterized in that the Chip-R (31) of described load resistance by 75 ohm of resistance values, the patch capacitor (32) of the capacitance 12.2NF that connects with 75 ohm Chip-R constitutes.
2. the anti-thunderbolt of TV signal transmission terminal according to claim 1 load, it is characterized in that said end of incoming cables is welded in the load resistance of inner wire contact pin tail end (3) and is meant: Chip-R (31) end of incoming cables is welded in inner wire (1) contact pin tail end.
3. TV signal transmission terminal according to claim 1 is prevented the thunderbolt load, and cover (4) inner chamber is meant to it is characterized in that being connected in succession by described load resistance (3) leading-out terminal (33): the bend apical grafting behind crooked 180 degree of patch capacitor (32) leading-out terminal lead is in the intracavity bottom that overlaps (4) in succession.
4. the anti-thunderbolt of TV signal transmission terminal according to claim 1 load is characterized in that the Chip-R (31) of said composition load resistance (3) is to be realized by the printed circuit (34) that is positioned on the insulation board (30) with being electrically connected of patch capacitor (32).
5. the anti-thunderbolt of TV signal transmission terminal according to claim 1 load is characterized in that described metal overlaps (4) leading section inner chamber in succession and is designed with connection with screw thread (41).
6. the anti-thunderbolt of TV signal transmission terminal according to claim 1 load is characterized in that described metal overlaps (4) periphery in succession and is designed with fastening with hexagon annular projection (42).
7. the anti-thunderbolt of TV signal transmission terminal according to claim 1 load is characterized in that described (4) rearward end of cover in succession is designed to hold the cup cover shape (43) of load resistance (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101832275A CN102695030A (en) | 2012-06-06 | 2012-06-06 | Lightning-proof load of television signal transmission terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101832275A CN102695030A (en) | 2012-06-06 | 2012-06-06 | Lightning-proof load of television signal transmission terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102695030A true CN102695030A (en) | 2012-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101832275A Pending CN102695030A (en) | 2012-06-06 | 2012-06-06 | Lightning-proof load of television signal transmission terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102695030A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234838B1 (en) * | 1999-10-08 | 2001-05-22 | Shen-Chia Wong | Structure for a coaxial cable connector |
| CN101958465A (en) * | 2010-10-21 | 2011-01-26 | 镇江市丹徒区佳兴电子有限公司 | Radio frequency coaxial connector |
| CN102148443A (en) * | 2010-12-06 | 2011-08-10 | 西安富士达科技股份有限公司 | Transfer load combining pins and jacks |
-
2012
- 2012-06-06 CN CN2012101832275A patent/CN102695030A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234838B1 (en) * | 1999-10-08 | 2001-05-22 | Shen-Chia Wong | Structure for a coaxial cable connector |
| CN101958465A (en) * | 2010-10-21 | 2011-01-26 | 镇江市丹徒区佳兴电子有限公司 | Radio frequency coaxial connector |
| CN102148443A (en) * | 2010-12-06 | 2011-08-10 | 西安富士达科技股份有限公司 | Transfer load combining pins and jacks |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |