CN203312799U - Telephone line lightning arrester - Google Patents
Telephone line lightning arrester Download PDFInfo
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- CN203312799U CN203312799U CN2013201906550U CN201320190655U CN203312799U CN 203312799 U CN203312799 U CN 203312799U CN 2013201906550 U CN2013201906550 U CN 2013201906550U CN 201320190655 U CN201320190655 U CN 201320190655U CN 203312799 U CN203312799 U CN 203312799U
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- interface
- pin
- gas discharge
- transient suppression
- telephone line
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Abstract
The utility model discloses a telephone line lightning arrester which comprises an RJ11 socket interface J1 and an RJ11 socket interface J2 which are connected with telephone line input and output ends respectively, two ceramic gas discharge tubes G1 and G2 which are orderly connected between the interface J1 and the interface J2, two self recovery fuses P1 and P2, three transient suppression diodes T1, T2 and T3, and a glass gas discharge tube G3. The telephone line lightning arrester is suitable for the lightning or surge protection of telephone dial equipment, a special grounding isolation design is employed, the effect of grounding crosstalk is completely avoided, and the operation of rear end equipment is more stable and safer.
Description
Technical field
The utility model relates to emergency protection circuit device for electric, relates in particular to a kind of telephone wire lightning protection device.
Background technology
Along with scientific and technological development, phone has become very universal daily family expenses small electric apparatus, but while thundering, lightning surge is easily invaded by telephone wire, damages telephone plant, even causes other disasters.
Existing lightning arrester for telephone or complex structure, although can play a role, corresponding cost is higher; Simple in structure, but in residual voltage, processing this piece can't play a role, and causes telephone signal influenced, and the problem that also can't avoid the earth surge to play a reversed role.
Therefore, how providing a kind of effective lightning protection and lower-cost telephone wire lightning protection device is industry technical problem urgently to be resolved hurrily.
The utility model content
The utility model, in order to address the above problem, has proposed a kind of telephone wire lightning protection device, comprises the socket RJ11 interface J1 and the interface J2 that with the telephone wire input/output terminal, are connected respectively, is connected to interface J1 in turn, two ceramic gas discharge tube G1 between interface J2, G2, two resettable fuse P1, P2, three Transient Suppression Diode T1, T2, T3, a glass gas-discharge pipe G3, the pin 1 of the input connection interface J1 of ceramic gas discharge tube G1, 2, 3, the pin 4 of the input connection interface J1 of ceramic gas discharge tube G2, 5, 6, ceramic gas discharge tube G1, the output of G2 connects the earth, resettable fuse P1, P2 is connected on telephone wire, the pin 1 of the termination interface J2 of Transient Suppression Diode T1, 2, 3, the pin 4 of the termination interface J2 of Transient Suppression Diode T2, 5, 6, Transient Suppression Diode T1, the other end of T2 splices and the glass gas-discharge pipe G3 that connects connects the earth, and the two ends of Transient Suppression Diode T3 are the pin 1 of connection interface J2 respectively, 2, 3 and pin 4, 5, 6.
The utility model is simple in structure, adopts the overcurrent-overvoltage duplicate protection, and carries out simultaneously common mode, differential mode protection; make the residue residual voltage after surge impact can be lower; and adopted special ground connection isolation design, the impact of having avoided ground connection to crosstalk fully, make rear end equipment move more stable, safety.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further, wherein:
Fig. 1 is the circuit diagram of the utility model one embodiment.
Embodiment
As shown in Figure 1, the telephone wire lightning protection device that the utility model one embodiment proposes, comprise the socket RJ11 interface J1 and the interface J2 that with the telephone wire input/output terminal, are connected respectively, be connected to two ceramic gas discharge tube G1, G2 between interface J1, interface J2, two resettable fuse P1, P2, three Transient Suppression Diode T1, T2, T3, a glass gas-discharge pipe G3 in turn.
The pin 1 of the input connection interface J1 of ceramic gas discharge tube G1, 2, 3, the pin 4 of the input connection interface J1 of G2, 5, 6, ceramic gas discharge tube G1, the output of G2 connects the earth, when lightning surge impacts from socket RJ11, ceramic gas discharge tube G1, electric breakdown phenomena occurs in G2 internal discharge gap immediately, ceramic gas discharge tube G1 now, G2 is equivalent to a good conductor, surge voltage namely is short-circuited to rapidly near no-voltage in the time at 50ns, surge current is imported rapidly the earth, although the transient power of ceramic gas discharge tube is large, but residual voltage is very high, resettable fuse P1, P2 is connected on telephone wire, because Transient Suppression Diode T1, T2, the reaction speed of T3 is than ceramic gas discharge tube G1, it is fast that G2 wants, so resettable fuse P1, P2 has certain cushioning effect to surge.The pin 1,2,3 of the termination interface J2 of Transient Suppression Diode T1; the pin 4,5,6 of the termination interface J2 of Transient Suppression Diode T2; the other end of Transient Suppression Diode T1, T2 splices and the glass gas-discharge pipe G3 that connects connects the earth; the protection of formation common mode; when the earth reverse surge is impacted; Transient Suppression Diode T1, T2 can be with the speed of 1ps by the impedance of its two interpolar by high step-down; the surge power of absorption up to thousands of watts; through the glass gas-discharge pipe G3 external the earth of releasing, thereby reduced voltage.The two ends of Transient Suppression Diode T3 are pin 1,2,3 and the pin 4,5,6 of connection interface J2 respectively.Make current potential clamper between two telephone wires in predetermined value, effectively protect components and parts in rear end equipment to avoid the infringement of surge.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (1)
1. telephone wire lightning protection device, it is characterized in that, the interface J1 and the interface J2 that comprise the socket RJ11 be connected with the telephone wire input/output terminal respectively, be connected to interface J1 in turn, two ceramic gas discharge tube G1 between interface J2, G2, two resettable fuse P1, P2, three Transient Suppression Diode T1, T2, T3, a glass gas-discharge pipe G3, the pin 1 of the input connection interface J1 of ceramic gas discharge tube G1, 2, 3, the pin 4 of the input connection interface J1 of ceramic gas discharge tube G2, 5, 6, ceramic gas discharge tube G1, the output of G2 connects the earth, resettable fuse P1, P2 is connected on telephone wire, the pin 1 of the termination interface J2 of Transient Suppression Diode T1, 2, 3, the pin 4 of the termination interface J2 of Transient Suppression Diode T2, 5, 6, Transient Suppression Diode T1, the other end of T2 splices and the glass gas-discharge pipe G3 that connects connects the earth, the two ends of Transient Suppression Diode T3 are the pin 1 of connection interface J2 respectively, 2, 3 and pin 4, 5, 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201906550U CN203312799U (en) | 2013-04-16 | 2013-04-16 | Telephone line lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201906550U CN203312799U (en) | 2013-04-16 | 2013-04-16 | Telephone line lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312799U true CN203312799U (en) | 2013-11-27 |
Family
ID=49618974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201906550U Expired - Fee Related CN203312799U (en) | 2013-04-16 | 2013-04-16 | Telephone line lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810816A (en) * | 2015-03-30 | 2015-07-29 | 苏州锟恩电子科技有限公司 | Lightning protection circuit design for RS422 signal interface of electronic equipment |
-
2013
- 2013-04-16 CN CN2013201906550U patent/CN203312799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810816A (en) * | 2015-03-30 | 2015-07-29 | 苏州锟恩电子科技有限公司 | Lightning protection circuit design for RS422 signal interface of electronic equipment |
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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: 20131127 Termination date: 20180416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |