CN2257425Y - Anti-lightning stroke protector for wire television - Google Patents
Anti-lightning stroke protector for wire television Download PDFInfo
- Publication number
- CN2257425Y CN2257425Y CN 95237060 CN95237060U CN2257425Y CN 2257425 Y CN2257425 Y CN 2257425Y CN 95237060 CN95237060 CN 95237060 CN 95237060 U CN95237060 U CN 95237060U CN 2257425 Y CN2257425 Y CN 2257425Y
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- CN
- China
- Prior art keywords
- amplifier
- winding
- cable
- joint
- radome
- Prior art date
- 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 an anti-lightning stroke protector for a wire television, which is characterized in that the same signal segregating devices (1), (2) are respectively connected between a front end cable (5) and an amplifier (4) and between a rear end cable (6) and the amplifier (4); a power supply segregating device (3) is connected between power supply lines (7) and the amplifier (4); two core wires of joints in a shielding cover (8) of the signal segregating devices are connected through CB< 1 >, and two leather wires of the joints which pass through two wires are respectively connected through CB, C< B' >. The internal part of the power supply segregating device (3) is provided with an isolated type transformer BC of industrial frequency; both ends of a winding TC are respectively connected through RL, RL< 1 > and a power supply plug (13); the winding TC is connected with RC in parallel; both ends of the winding TC are respectively connected with an output socket (14), and a TC< 1 > is connected with an anti-interference capacitor Cc in parallel.
Description
The utility model relates to the anti-lightening protector of cable TV outside line power supply type amplifier and cable thereof.
There are a considerable amount of amplifiers to belong to outside line power supply type amplifier in the current cable transmission system, these amplifiers are by other power line power supply, therefore, amplifier just is subjected to breaking from the next thunder and lightning of power line and signal cable two aspects easily, and, the signal cable of whole system all is connected, the also large stretch of area of power line is connected, like this, a place is subjected to thunder, and then the whole piece circuit all has thunder and lightning, the place of not being struck by lightning also is affected, cause and burn amplifier a sheet ofly, damage a sheet ofly, aging cable, even the serious consequence that also is damaged of headend equipment.
The purpose of this utility model provides a kind of between leading portion cable and the amplifier; between back segment cable and the amplifier; high-insulation isolation respectively between power line and the amplifier; make thunder and lightning not enter amplifier from cable and two aspects of power line; but alternating current and TV signal can be passed through smoothly and amplify, effectively the outside line power supply type anti-lightening protector of guard amplifier and cable.
Technical solution of the present utility model is to have adopted the high-frequency and high-voltage electric capacity C of prior art, piezo-resistance R
B, the stube cable joint connects the amplifier joint, Industrial Frequency Transformer B
C, anti-interference capacitor C
C, current-limiting resistance R
LRadome, shield blade, particularly the utility model is between leading portion cable and amplifier, be connected with respectively between back segment cable and the amplifier and can intercept the thunder and lightning of cable to amplifier, but can be smoothly signal isolator by TV signal, the structure of two signal isolators is identical, a radome is arranged, the joint of a stube cable is arranged, and shield blade is fixed on the radome, but with the radome high-insulation, the other end at radome is fixed with connection amplifier joint, and three identical high-frequency and high-voltage electric capacity C are arranged in the radome
B, C
B 1, C
B ＂, pass through high-frequency and high-voltage electric capacity C between the heart yearn of stube cable joint and connection amplifier joint
B 1Link to each other, both sides are respectively by high-frequency and high-voltage electric capacity C between the rubber-insulated wire
BAnd C
B ＂Two lines link to each other, between the core skin of stube cable joint, be parallel with a piezo-resistance R
B, the stube cable joint is connected with cable, connects the amplifier joint and is connected with amplifier.A power isolator is arranged between power line and amplifier, and power isolator has a shell, and the shell internal fixation has a power frequency isolated form transformer B
C, two winding T are arranged on it
C, T
C 1, T
CAn end by current-limiting resistance R
LThe series connection back links to each other with a line of attaching plug, and the other end is by current-limiting resistance R
L 1The series connection back links to each other winding T with another line of power input plug
CPiezo-resistance R in parallel
C, winding T
C 1Link to each other winding T with power output socket
C 1Anti-interference capacitor C in parallel
C, power input plug links to each other with the power supply supply lines, and power output socket links to each other with the amplifier power supply line.
A shield blade is arranged on the stube cable joint on the signal isolator in the utility model, shield blade is not joined with the radome of useing shell as, and be separated by to such an extent that open very much, between very thick insulation board is arranged, but in the vertical plane projection of the neighboring of shield blade, have overlappingly, make shield blade and radome become high-insulation, the unlikely lightning protection effect that influences isolator, good shielding action is arranged again, make TV signal be not easy to let out.
Three high-frequency high-voltage container C in the signal isolator of the present utility model
B, C
B 1, C
B ＂Capacity very little, but withstand voltage very high, can only allow TV signal just pass through smoothly, and general thunder and lightning is not easy to puncture and passes through, and when having thunder and lightning to pass on the stube cable joint on the cable, just is difficult for from C
B, C
B 1, C
B ＂Last puncture is scurried to connect on the amplifier joint and is entered amplifier, thereby realizes the purpose with cable and amplifier isolation lightning protection.Piezo-resistance R in the signal isolator of the present utility model
BBe connected between the core skin of stube cable joint, be used to absorb the lightning overvoltage between the core skin of cable induction, keep high-frequency and high-voltage electric capacity and amplifier not the thunder and lightning induction voltage between the core skin burn out.Industrial Frequency Transformer B in the power isolator of the present utility model
C, because winding T
C, T
C 1Between, therefore high-insulation isolation mutually, passes to T when the power supply supply lines has thunder and lightning between winding and the iron core
CWhen last, just can not scurry T
C 1On, vice versa.Promptly be like this, still can be coupled in the past by iron core by some thunder and lightning, but this part thunder and lightning be not strong, piezo-resistance R
CCan be effectively absorption.Piezo-resistance R
CBe connected in parallel on winding T
CTwo ends on, current-limiting resistance R
LAnd R
L 1Be connected on T respectively
CTwo ends on.Because overvoltage is more much better than than the overvoltage between the thunder and lightning core skin of responding on the signal cable between the thunder and lightning line of responding on the power supply supply lines, also burn out in order to prevent excessive lightning induction overcurrent piezo-resistance, so string has current-limiting resistance R
LAnd R
L 1R
L, R
L 1And R
CCommon protection winding T
CDo not burnt out, also prevent T simultaneously by overvoltage between the line of lightning induction
C 1The coupling output over-voltage burns amplifier.
The utility model has the advantages that can be between leading portion cable and the amplifier; between back segment cable and amplifier; high-insulation isolation respectively between power line and the amplifier; make thunder and lightning not enter amplifier from cable and two aspects of power line; but alternating current and TV signal can be passed through smoothly and amplify the outside line of guard amplifier and cable effectively.
Below in conjunction with accompanying drawing embodiment of the present utility model is described:
The position relation of Fig. 1 signal isolator of the present utility model and power isolator
Schematic diagram
Fig. 2 signal isolator structure of the present utility model and circuit diagram
Fig. 3 power isolator structure of the present utility model and circuit diagram
Shield blade on Fig. 4 stube cable joint of the present utility model and radome
Organigram
According to Fig. 1,2,3, shown in 4, the utility model is between leading portion cable 5 and amplifier 4, be connected with respectively between back segment cable 6 and the amplifier 4 and can intercept the thunder and lightning of cable to amplifier, but can pass through the signal isolator 1 of TV signal smoothly, 2, signal isolator 1 and 2 structures are identical, a radome 8 of useing shell as is arranged, there is the shield blade 9 of a stube cable joint 10 to be fixed on the radome 8 by heavy insulation plate 15, with radome 8 high-insulations, on the other end of radome 8, be fixed with connection amplifier joint 11, three identical high-frequency and high-voltage electric capacity C are arranged in the radome 8
B, C
B 1, C
B ＂, pass through high-frequency and high-voltage electric capacity C between the heart yearn of stube cable joint 10 and connection amplifier joint 11
B 1Link to each other, both sides are respectively by high-frequency and high-voltage electric capacity C between the rubber-insulated wire
BAnd C
B ＂Two-lines link to each other, between the core skin of stube cable joint 10, be parallel with a piezo-resistance R
B, stube cable joint 10 is connected with cable, connects amplifier joint 11 and is connected with amplifier 4.A power isolator 3 is arranged between power line 7 and amplifier 4, and power isolator 3 has a shell 12, and shell 12 internal fixation have a power frequency isolated form transformer B
C, two winding T are arranged on it
C, T
C 1, T
CAn end by current-limiting resistance R
LThe series connection back links to each other with a line of attaching plug 13, and the other end is by current-limiting resistance R
L 1The series connection back links to each other winding T with another line of power input plug 13
CPiezo-resistance R in parallel
C, winding T
C 1Link to each other winding T with power line accessory power outlet 14
C 1Anti-interference capacitor C in parallel
C, power input plug 13 links to each other with power supply supply lines 7, and power output socket 14 links to each other with amplifier 4 power lines.
Claims (3)
1, cable TV anti-lightening protector comprises high-frequency and high-voltage electric capacity C, piezo-resistance R
B, the joint of stube cable (10), the joint (11) of connection amplifier, Industrial Frequency Transformer B
C, anti-interference capacitor C
C, current-limiting resistance R
LRadome (8), shield blade (9) constitutes, it is characterized in that between leading portion cable (5) and amplifier (4), be connected with respectively between back segment cable (6) and the amplifier (4) and can intercept the thunder and lightning of cable to amplifier, but can be smoothly signal isolator (1) by TV signal, (2), signal isolator (1) and (2) structure are identical, use that in the radome (8) of shell a stube cable joint (10) to be arranged be to be fixed on the radome (8) as, overlap to be fixed with on the other end of radome (8) with radome high-insulation and projection and be connected amplifier joint (11), three identical high-frequency and high-voltage electric capacity C are arranged in the radome (8)
B, C
B 1, C
B ＂, pass through high-frequency and high-voltage electric capacity C between the heart yearn of stube cable joint and connection amplifier joint (11)
B 1Link to each other, two joint rubber-insulated wires pass through high-frequency and high-voltage electric capacity C respectively through the two-lines road
BAnd C
B ＂Link to each other, between the core skin of stube cable joint (10), be parallel with a piezo-resistance R
BStube cable joint (10) is connected with cable, connects amplifier joint (11) and is connected with amplifier, between power line (7) and amplifier (4) power isolator (3) is arranged, power isolator (3) has a shell (12), and shell (12) internal fixation has a power frequency isolated form transformer B
c, two winding T are arranged on it
C, T
C 1, T
CAn end by current-limiting resistance R
LThe series connection back links to each other with a line of attaching plug (13), and the other end is by current-limiting resistance R
L 1The series connection back links to each other winding T with another line of power input plug (13)
CPiezo-resistance R in parallel
C, winding T
C 1Link to each other winding T with power output socket (14)
C 1Anti-interference capacitor C in parallel
C, power input plug (13) links to each other with power supply supply lines (7), and power output socket (14) links to each other with amplifier (4) power line.
2, cable TV anti-lightening protector according to claim 1; it is characterized in that power isolator (3) is for forming the high-insulation isolation; prevent that thunder and lightning from scurrying iron core from a winding and scurrying on another winding again; or directly scurry on another winding from a winding, and with power frequency isolated form transformer B
CIron core and winding T
C, T
C 1Between, winding T
CWith T
C 1Between, open very much apart from one another by getting.
3, cable TV anti-lightening protector according to claim 1; it is characterized in that being lined with between the radome (8) of signal isolator (1) and (2) and the shield blade (9) and can form high-insulation, prevent that thunder and lightning from scurrying the heavy insulation plate (15) that radome (8) influences the lightning protection effect of signal isolator from shield blade (9); for preventing that TV signal from directly spilling, the neighboring vertical plane projection of the shield blade (9) of maintenance shield effectiveness and the inner rim vertical plane projection of radome (8) have overlapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237060 CN2257425Y (en) | 1995-06-22 | 1995-06-22 | Anti-lightning stroke protector for wire television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237060 CN2257425Y (en) | 1995-06-22 | 1995-06-22 | Anti-lightning stroke protector for wire television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2257425Y true CN2257425Y (en) | 1997-07-02 |
Family
ID=33879890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95237060 Expired - Fee Related CN2257425Y (en) | 1995-06-22 | 1995-06-22 | Anti-lightning stroke protector for wire television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2257425Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210595A (en) * | 2012-11-22 | 2016-12-07 | 江苏华兴电子有限公司 | For guaranteeing the antenna isolator of high-frequency signal transmission quality |
-
1995
- 1995-06-22 CN CN 95237060 patent/CN2257425Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210595A (en) * | 2012-11-22 | 2016-12-07 | 江苏华兴电子有限公司 | For guaranteeing the antenna isolator of high-frequency signal transmission quality |
| CN106210595B (en) * | 2012-11-22 | 2018-12-07 | 江苏华兴电子有限公司 | For ensuring the antenna isolator of high-frequency signal transmission quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |