CN2323457Y - High frequency signal line lightning arrester - Google Patents
High frequency signal line lightning arrester Download PDFInfo
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- CN2323457Y CN2323457Y CN 97230157 CN97230157U CN2323457Y CN 2323457 Y CN2323457 Y CN 2323457Y CN 97230157 CN97230157 CN 97230157 CN 97230157 U CN97230157 U CN 97230157U CN 2323457 Y CN2323457 Y CN 2323457Y
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- frequency signal
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Abstract
The utility model relates to a high frequency signal wire lightning arrester which is used on high frequency signal wires. A zinc oxide varistor is connected in series with a central conductor, the input end of the central conductor is connected with the electrode a of a gas discharge tube, and the electrode e of the gas discharge tube is connected with an earth wire. The zinc oxide varistor has a good transmission characteristic to high-frequency signals, and thus the high-frequency signals can be transmitted normally; the zinc oxide varistor has isolation and delaying damping functions to power frequency and low-frequency signals, and thus the utility model has isolation and delaying damping functions to the impact of the induction lightning which is mainly composed of power frequency and low-frequency energy, and the impact of the induction lightning is discharged through the gas discharge tube. The utility model has a protection function to equipment.
Description
A kind of lightning arrester that is used for the HF communication circuit
For high frequency signal receiver and domestic television set, often, cause the breaking-up of equipment and personnel's injures and deaths because of near thunderbolt causes the impact that produces stronger induced electromotive force of moment on the transmission cable.Chinese patent application number is 962138827 " high-frequency signal lightning arrester ", and its center conductor disconnects, and the corresponding part of opening a way has a pair of open circuit inductive coupling body.The distance between the inductive coupling body of this open-circuit structure and the shape of inductor not only influence the transmission characteristic of high-frequency signal, but also influence lightning-arrest effect.Therefore, caused difficulty for the processing of lightning arrester.
The purpose of high-frequency signal leakage conductor of the present utility model is to provide a kind of transmission feature that neither influences high-frequency signal, has improved the simple lightning arrester of processing of lightning-arrest effect again.Can be common to the lightning protection of high frequency signal receiver and domestic television set.
High-frequency signal leakage conductor structure of the present utility model is formed and is comprised: input terminal, lead-out terminal, center conductor, piezo-resistance, shield, discharge tube and ground wire.Wherein input, lead-out terminal can be selected the general input and output interface of high-frequency signal cable for use, also can adopt the socket and the plug of television antenna; Piezo-resistance on the center conductor is a Zinc-oxide piezoresistor, and generally speaking, two end lines of available piezo-resistance use as center conductor.Shield adopts metal material or is coated with the plastic material of metal conducting layer, and shape can be that circle also can be a polygonal; Discharge tube adopts gas discharge tube, and a utmost point is connected input one side of center conductor, and the e utmost point connects ground wire; Input, lead-out terminal all are screwed.Zinc oxide on the center conductor of high-frequency signal leakage conductor of the present utility model (ZnO) piezo-resistance not only has pressure-sensitive character and also has special frequency response characteristic.In a high-frequency signal transmission system, Zinc-oxide piezoresistor has good transmission characteristic for high-frequency signal, and for power frequency and low frequency signal, it has the characteristics of high impedance.The main concentration of energy of induction lightening is in power frequency and low-frequency range, and therefore, Zinc-oxide piezoresistor has it isolates and time-lag action.Like this, the induction lightening Zinc-oxide piezoresistor little to energy has buffer action, has damping and time-lag action for the high induction lightening of energy, and the discharge tube fire escape by ground connection discharges high-octane thunder and lightning energy.
High-frequency signal leakage conductor of the present utility model, Zinc-oxide piezoresistor in the series connection in the middle of center conductor.Have good transmission characteristic for high-frequency signal, have isolation and damping action, not only can prevent the impact of induction lightening, the antijamming capability that also has beyond thought low-pass filtering for power frequency and low frequency.In addition, two end lines of zinc oxide (ZnO) piezo-resistance can have been simplified processing technology greatly directly as center conductor.
Fig. 1: the structure of the utility model high-frequency signal leakage conductor is formed.
Fig. 2: the structure of the utility model embodiment is formed.
Illustrate: the 1st, input terminal, the 2nd, lead-out terminal, the 3, the 4th, center conductor, the 5th, piezo-resistance, the 6th, nut, the 7th, packing ring, the 8th, shield, the 9th, discharge tube, the 10th, ground wire, the 11st, ground wire insulated hole, the 12nd, plastic jacket, the 13rd, aluminium oxide coating, the 14th, center conductor input, the 15th, discharge tube b utmost point pad, the 16th, plastic annular sheet, the 17th, base apertures, the 18th, vinyl cover, the 19th, pad.
Provide an embodiment of the present utility model below.Fig. 2 is the structure composition diagram of present embodiment.Shield 8 adopts plastic jackets 12, is coated with one deck aluminium oxide coating 13 at the inner face of plastic jacket 12.Input terminal is selected TAL-KY type tv antenna socket for use.It is the Zinc-oxide piezoresistor of 470V that piezo-resistance 5 on the center conductor is selected sense voltage for use, and two end lines of Zinc-oxide piezoresistor 5 are directly as center conductor.Discharge tube 9 adopts 3R-150A/B type gas discharge tube, and an end (a utmost point) is welded on input one side of center conductor 3, and the other end (the e utmost point) is connected with ground wire 10, draws ground connection by ground wire insulated hole 11, and the b utmost point is welded on the pad 19.Shield 8 is for there being the plastic jacket 12 of oxidation aluminium coat 13, and a base apertures 17 is arranged at its bottom.The diameter of plastic jacket 12 is 30 millimeters, and length is 30 millimeters.The TAL-KY socket is fixed on nut 6 on the vinyl cover 18 that is coated with aluminium oxide coating, and is bonding with adhesive and plastic jacket 12.The TAL-JY plug is fixed on the plastic annular sheet 16 with aluminium oxide coating with nut 6.The diameter of base apertures 17 is 20 millimeters.The diameter of vinyl cover 18 is 30 millimeters, and endoporus is consistent with the bayonet socket external diameter of antenna socket.The diameter of plastic annular sheet 16 is the 25-30 millimeter, and internal orifice dimension is consistent with the bayonet socket external diameter of aerial plug.The utility model embodiment adopts plastic material and bonding fixing means, and center conductor directly uses the end line of zinc oxide (ZnO) piezo-resistance.So selection is easy, processing is simple, and airtight performance is good.
Claims (3)
1. a high-frequency signal leakage conductor is made up of center conductor, shield, discharge tube and input and output terminal, it is characterized in that piezo-resistance of series connection on the center conductor.
2. high-frequency signal leakage conductor according to claim 1 is characterized in that the piezo-resistance of connecting on the center conductor is zinc oxide (ZnO) piezo-resistance.
3. high-frequency signal leakage conductor according to claim 1 is characterized in that a utmost point of discharge tube is connected with the input of center conductor, and the e utmost point of discharge tube is connected with ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230157 CN2323457Y (en) | 1997-12-12 | 1997-12-12 | High frequency signal line lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230157 CN2323457Y (en) | 1997-12-12 | 1997-12-12 | High frequency signal line lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2323457Y true CN2323457Y (en) | 1999-06-09 |
Family
ID=33942742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97230157 Expired - Fee Related CN2323457Y (en) | 1997-12-12 | 1997-12-12 | High frequency signal line lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2323457Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017215424A1 (en) * | 2016-06-17 | 2017-12-21 | 北京全路通信信号研究设计院集团有限公司 | Railway signal cable grounding system |
-
1997
- 1997-12-12 CN CN 97230157 patent/CN2323457Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017215424A1 (en) * | 2016-06-17 | 2017-12-21 | 北京全路通信信号研究设计院集团有限公司 | Railway signal cable grounding system |
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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 |