CN2309604Y - Line arrester - Google Patents
Line arrester Download PDFInfo
- Publication number
- CN2309604Y CN2309604Y CN 97234760 CN97234760U CN2309604Y CN 2309604 Y CN2309604 Y CN 2309604Y CN 97234760 CN97234760 CN 97234760 CN 97234760 U CN97234760 U CN 97234760U CN 2309604 Y CN2309604 Y CN 2309604Y
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- CN
- China
- Prior art keywords
- loop
- leakage conductor
- resistance
- piezo
- utility
- 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 discloses a line arrester, comprising a first loop, a second loop, and a third loop, wherein, the first loop is formed by that a luminous diode L1 is connected in parallel with a rectifier diode D1, and then the luminous diode L1 and the rectifier diode D1 are connected in series with a resistor R1, the second loop is formed by that two varistors R2 and R3 are connected in series, and the third loop is alone composed of a varistor R4, three loops are connected in parallel, both ends of the first loop are connected with a protector respectively, and then are connected with the input end of a power supple, and both ends of the third loop are output ends of the power supply. The middle point of the varistors R2 and R3 which are connected is connected with earth. The utility model has the advantages of simple structure, and convenient operation, and is suitable for lightning protection of wired TV amplifiers and other electric apparatus whose power supply is 220V.
Description
The utility model relates to a kind of emergency protective circuit device, specifically a kind of leakage conductor.
The lightning protection device that generally is used at present the protection of lightning strike protection and overvoltage surge is more; as the patent No. is the Chinese patent " Thunder preventing socket " of ZL94242420.4 and the utility model patent " transmission line lightning arrester " that the patent No. is ZL94243024.7, discloses two kinds of lightning protection lightning arresters respectively.Its structure is comparatively complicated first, second is respectively applied for the protection to some power consumption equipment and signal transmission, and is applicable to that simultaneously the lightning arrester of lightning protection of the wired TV amplifier of 220V power supply and other electrical equipment is also rare.
The purpose of this utility model is to provide a kind of leakage conductor that especially is applicable to wired TV amplifier simple in structure, easy to use, of many uses.
For achieving the above object, leakage conductor of the present utility model comprises three loops, a resistance R 1 is formed first loop by connecting after a light-emitting diode L1 and the rectifier diode D1 parallel connection, be composed in series second loop by two piezo-resistance R2, R3, first loop, second loop and the tertiary circuit parallel connection that constitutes separately by a piezo-resistance R4, the two ends in first loop link to each other with power input after connecting a protector respectively, the two ends of tertiary circuit then are power output end, the connection middle ground of piezo-resistance R2, R3.
Foregoing circuit components and parts and connecting mode have been adopted; after connecting ground wire; can eliminate lightning overvoltage and switching overvoltage in the supply line, the electrical equipment on the protection circuit in the certain limit is avoided the infringement of high voltage surge, is particularly useful for the wired TV amplifier of 220V power supply.This lightning arrester can be designed to plug-in type or Wiring type, and has light-emitting diode to indicate, and is simple in structure, easy to use, also applicable to the lightning protection of other electrical equipment.
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.
Fig. 1 is a circuit connection diagram of the present utility model;
Fig. 2 is the contour structures schematic diagram of plug-in circuit lightning arrester of the present utility model;
Fig. 3 is the contour structures schematic diagram of Wiring type leakage conductor of the present utility model.
As shown in the figure, leakage conductor of the present utility model comprises three loops, form first loop by light-emitting diode L1 with series resistance R1 after a rectifier diode D1 is in parallel, be composed in series second loop by two piezo-resistance R2, R3, first loop, second loop and the tertiary circuit parallel connection that constitutes separately by piezo-resistance R4, the two ends in first loop link to each other with power input after connecting protector F1, F2 respectively, the two ends of tertiary circuit then are power output end, the connection middle ground of piezo-resistance R2, R3, the input power source voltage is 220V.In this example, the specifications and models of employed each components and parts are as follows: protector F1, F2,220V, 10A; Resistance R 1 is the fixed carbon resister of 220K Ω; Piezo-resistance R2, R3, R4 model are MYL-25K471; The specifications and models of rectifier diode D1 are IN4007; Light-emitting diode L1 is a red light emitting diodes.
This leakage conductor can be designed to plug-in circuit lightning arrester (as Fig. 2), also can be designed to Wiring type leakage conductor (as shown in Figure 3), and light-emitting diode L1 can indicate, and is easy to use.
The utility model is applicable to the wired TV amplifier of 220V power supply and the room thunder and the overvoltage protection of other electrical equipment.
Claims (3)
1, a kind of leakage conductor, it is characterized in that, described leakage conductor comprises three loops, a resistance R 1 is formed first loop by connecting after a light-emitting diode L1 and the rectifier diode D1 parallel connection, be composed in series second loop by two piezo-resistance R2, R3, described first loop, second loop and the tertiary circuit parallel connection that constitutes separately by a piezo-resistance R4, the two ends in described first loop link to each other with power input after connecting a protector respectively, and the two ends of described tertiary circuit then are power output end; The connection middle ground of described piezo-resistance R2, R3.
2, a kind of leakage conductor as claimed in claim 1 is characterized in that, described leakage conductor is the plug-in circuit lightning arrester.
3, a kind of leakage conductor as claimed in claim 1 is characterized in that, described leakage conductor is the Wiring type leakage conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234760 CN2309604Y (en) | 1997-06-05 | 1997-06-05 | Line arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234760 CN2309604Y (en) | 1997-06-05 | 1997-06-05 | Line arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309604Y true CN2309604Y (en) | 1999-03-03 |
Family
ID=33946028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97234760 Expired - Fee Related CN2309604Y (en) | 1997-06-05 | 1997-06-05 | Line arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309604Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438254C (en) * | 2006-04-12 | 2008-11-26 | 叶林 | Thunderstroke protection circuit capable of avoiding being reliably protecting electric net power supply thander struck by directly |
-
1997
- 1997-06-05 CN CN 97234760 patent/CN2309604Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438254C (en) * | 2006-04-12 | 2008-11-26 | 叶林 | Thunderstroke protection circuit capable of avoiding being reliably protecting electric net power supply thander struck by directly |
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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 |