CN2842835Y - The two-way prevention siganl thunder-proof device - Google Patents
The two-way prevention siganl thunder-proof device Download PDFInfo
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- CN2842835Y CN2842835Y CN 200520066383 CN200520066383U CN2842835Y CN 2842835 Y CN2842835 Y CN 2842835Y CN 200520066383 CN200520066383 CN 200520066383 CN 200520066383 U CN200520066383 U CN 200520066383U CN 2842835 Y CN2842835 Y CN 2842835Y
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- circuit
- lightning protection
- protection
- resistance
- thick
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Abstract
The utility model discloses a kind of two-way signaling lightning protection device.Comprise by at least more than one transition and suppress thin protection lightning protection circuit and at least two thick protection lightning protection circuits of forming by discharge tubing device and/or piezo-resistance that diode or piezo-resistance are formed.Be electrically connected with at least one decoupling circuit between described thin protection lightning protection circuit and described thick protection lightning protection circuit, described thick protection lightning protection circuit is positioned at the two ends of lightning protection circuit, and its input, output constitute two interchangeable universal ports.The utility model adopts a thin protective circuit of secondary and two thick protective circuits of one-level.And the middle decoupling circuit that is electrically connected that inserts carries out the two-stage insulation blocking.Make siganl thunder-proof device circuit two ends that output, the input of a thick protective circuit respectively be arranged, produced two ends need not branch lightning protection device protection end and lightning protection device surge end into and out of end.Thereby prevented from use to go up the damage of the siganl thunder-proof device self that the direction reversal connection causes effectively because of siganl thunder-proof device.
Description
Technical field
The utility model relates to a kind of lightning arrester, especially on the signal line from the signal lighting protection apparatus of the various overvoltage surge protection of lightning surge or other.
Background technology
Along with the development of modern technologies, telecommunication connection, network communication, telecommunications operations station and networked devices are very extensive in the utilization of all trades and professions, and the phenomenon of the instantaneous pressure damaged line equipment that voltage surge that occurs in the circuit and thunderbolt produce takes place often.For protecting these to be worth expensive equipment, the siganl thunder-proof device of relevant these equipment of protection has appearred in recent years on the market in succession.In the known technology by a kind of siganl thunder-proof device of only forming the thin protective circuit of one-level lightning protection by semiconductor device such as transition diodes.It adopts the only thin protective circuit of this one-level semiconductor device composition, and is very limited to general protection surge capacity, when meeting surge voltage intrusion greatly, very easily suffers damage, and causes lightning protection device to lose efficacy, and loses the protective capability to protected equipment.
The another kind of siganl thunder-proof device that constitutes by dual-electrode protecting circuit in the prior art.Adopt higher discharge tubing device of through-flow level or pressure-sensitive device to form the thick protective circuit of one-level, form the thin protective circuit of secondary by transition diode-like or piezo-resistance class device again.In this siganl thunder-proof device circuit, be provided with into (" IN ")/go out (" OUT ") end, the protection end of lightning protection and the branch of surge end are promptly arranged.Its weak point is in case two terminations anti-(or being referred to as reversal connection) very easily cause the thin protective circuit in the second level directly to suffer damage in the face of higher surge voltage, and then cause the lightning protection disabler, loses/reduced the protective capability to protected equipment.
The utility model is further improvement of existing technologies and development.
Summary of the invention
The purpose of this utility model is the weak point that exists at above-mentioned prior art, and a kind of guard signal of two-stage at least lightning protection device with bidirectional protective function is provided, and damages and lose protective capability with the lightning protection device of avoiding causing because of the siganl thunder-proof device reversal connection.
The technical scheme that its technical problem that solves the utility model adopts is; a kind of two-way signaling lightning protection device that the utility model provides; comprise by at least more than one transition and suppress thin protection lightning protection circuit and at least two thick lightning protection circuits of forming by discharge tubing device and/or piezo-resistance that diode or piezo-resistance are formed; its special character is; between described thin protection lightning protection circuit and described thick lightning protection circuit, be electrically connected with the decoupling circuit that at least one is made up of resistance; described thick lightning protection current potential is in the two ends of forming lightning protection circuit thus; its input; output is electrically connected on the output interface of box body, constitutes two interchangeable universal ports.
The utility model has the two ends of a thin protective circuit of being made up of transition diode and/or piezo-resistance of secondary at least, isolates being electrically connected the thick protective circuit of one-level that two ends are made up of discharge tubing device and/or piezo-resistance respectively by decoupling circuit.
Input and output two port side that are electrically connected on the output interface of box body described in the utility model, each is by the thick protection lightning protection circuit of being made up of piezo-resistance or gas discharge tube more than at least.
Wherein, be to improve lightning protection effect, effectively realize the two-stage protection, be provided with the decoupling circuit of forming by resistance or inductance, resettable fuse class device between the lightning protection circuit with slightly protecting at thin protection lightning protection circuit.The utility model has following effective effect than prior art.
The utility model adopts a secondary carefully to protect lightning protection circuit and two one-levels slightly to protect lightning protection circuit.Slightly protect a lightning protection circuit and a middle secondary carefully to protect in former and later two one-levels and respectively insert the protection that a decoupling circuit carries out the two-stage isolation between the lightning protection circuit.Make siganl thunder-proof device circuit two ends each output, input, produced two ends and be regardless of, the technique effect that can exchange into and out of end by a thick protective circuit of forming by discharge tubing device and/or piezo-resistance.Make arbitrary end all can be used as the output of lightning protection device (being lightning protection device protection end); also can be used as the input (being lightning protection device surge end) of lightning protection device, thereby prevented from use to go up the damage of the siganl thunder-proof device self that the direction reversal connection causes effectively because of siganl thunder-proof device.Solved the prior art two ends and easily connect anti-ballistic directly the damage of the thin protective circuit in the second level that causes, made the lightning protection disabler, reduced protected equipment protection ability, influenced the problem of siganl thunder-proof device protective value in the face of suffering than high surge voltage.
In order to further specify rather than limit above-mentioned implementation of the present invention, provide most preferred embodiment below in conjunction with accompanying drawing and example, thereby make details of the present invention and advantage become more obvious.
Description of drawings
Fig. 1 is an electric theory diagram schematic diagram of the present utility model;
Fig. 2 is an electric principle schematic of the present utility model;
Fig. 3 is the electric principle schematic that the utility model single-signal-line is protected the embodiment lightning protection over the ground;
Fig. 4 is the electric principle schematic that the utility model dual signal line is protected the embodiment lightning protection over the ground.
Embodiment
In the embodiment that Fig. 1 describes, be contained in the siganl thunder-proof device housing, one that connects by electronic circuit board (not shown) circuit by gas discharge tube G
1And G
2Deng forming the thick protection lightning protection circuit that discharge tubing device and/or piezo-resistance are formed, and be positioned in the middle of this thick protection lightning protection circuit by transition diode TZ
1And/or the thin protection lightning protection circuit that piezo-resistance is formed is a prior art.Former and later two one-levels of Gou Chenging slightly protect a lightning protection circuit and a middle secondary carefully to protect lightning protection circuit thus, respectively insert one therebetween respectively by R
1, R
2And R
3, R
4The decoupling circuit of forming has been isolated into dual-electrode protecting circuit.Promptly a secondary carefully protects lightning protection circuit part and two one-levels slightly to protect the lightning protection circuit part, between former and later two first class of protection and middle second class protection part, the decoupling circuit part of an electrical connection is arranged respectively, isolates the two-stage protection.Carefully protect the lightning protection circuit two ends respectively to increase a thick protection lightning protection circuit in prior art like this, can effectively improve the lightning protection properties of siganl thunder-proof device, improve reliability, avoid the infringement and the harm that cause because of the siganl thunder-proof device improper use.The two ends that can also have a thin protective circuit of being made up of transition diode and/or piezo-resistance of secondary in the present embodiment at least isolate being electrically connected the thick protective circuit of one-level that two ends are made up of discharge tubing device and/or piezo-resistance respectively by decoupling circuit.In input and output two port side of the output joint pin that is electrically connected on box body, at least can be respectively by the thick protection lightning protection circuit of forming by piezo-resistance or gas discharge tube more than.The decoupling circuit that is electrically connected between described thin protection lightning protection circuit and thick protection lightning protection circuit can be made up of resistance or inductance, resettable fuse class device.Circuit shown in the accompanying drawing can be used for the Line To Line protection, also can be used for line and protects over the ground.Fig. 2 has described the circuit connecting relation of present embodiment.
In embodiment illustrated in fig. 2, showed the differential mode protective circuit between a kind of holding wire.At these two ends, circuit left and right sides respectively is an input/output end port, in the two-port separately and meet a discharge tubing thick protection device G
1, G
2, two electrical interconnections that every port is introduced are connected in series a resistance class decoupling device separately (as R
1, R
2, R
3, R
4, and then be connected to middle part---the thin protection part of circuit, by at least one the transition diode-like thin protection device TZ of cross-over connection between two lines
1, the lightning protection of realization secondary is carefully protected.
In another embodiment shown in Figure 3, it removes and comprises that the transition by at least more than one that is arranged between holding wire and the ground suppresses diode TZ
1Outside the thin protective circuit of forming of lightning protection, also comprise being arranged on each gas discharge tube G of siganl thunder-proof device two ends oral-lateral by at least more than one
1And G
2The thick protective circuit of secondary lightning protection Deng the device composition.For improving its lightning protection effect, effectively realize two protection.Between two-stage circuit, be electrically connected with by resistance R
1And R
2The decoupling circuit of forming.For ensureing lightning protection effect, ensure signal transmission performance simultaneously, on thin protection lightning protection circuit, have additional one by diode TZ
1With diode D
1, D
2, D
3, D
4The bridge diode circuit of forming to reduce the capacitance on the circuit between line, improves transmission performance.
In the embodiment that Fig. 4 describes, comprise being arranged between holding wire and the line, by at least more than one transition inhibition diode TZ
1The thin protection lightning protection circuit of forming also comprises being arranged on each thick protection lightning protection circuit of being made up of at least more than one devices such as gas discharge tube of siganl thunder-proof device two ends oral-lateral (as G
1And G
2).For improving its lightning protection effect, effectively realize two protection.Between the two-stage lightning protection circuit, also be electrically connected with by resistance R
1, R
2And R
3, R
4The decoupling circuit of forming.For ensureing lightning protection effect and signal transmission performance, on described thin protective circuit, also have additional one by diode TZ
1With diode D
1, D
2, D
3, D
4The bridge diode circuit of forming to reduce the capacitance on the circuit between line, improves transmission performance.
Above-described only is the preferred embodiments of the present invention.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some distortion and improvement, also should be considered as belonging to protection scope of the present invention.
Claims (8)
1. two-way signaling lightning protection device; comprise by at least more than one transition and suppress thin protection lightning protection circuit and at least two thick protection lightning protection circuits of forming by discharge tubing device and/or piezo-resistance that diode or piezo-resistance are formed; it is characterized in that between described thin protection lightning protection circuit and described thick lightning protection circuit, being electrically connected with the decoupling circuit that at least one is made up of resistance class device; the thick protective circuit of described lightning protection is positioned at the two ends of forming lightning protection circuit thus, constitutes two interchangeable universal ports.
2. according to the described siganl thunder-proof device of claim 1; it is characterized in that; the two ends that have a thin protective circuit of being made up of transition diode and/or piezo-resistance of secondary at least isolate being electrically connected the thick protective circuit of one-level that two ends are made up of discharge tubing device and/or piezo-resistance respectively by decoupling circuit.
3. according to claim 1 or 2 described siganl thunder-proof devices, it is characterized in that described thick protection lightning protection circuit is made up of gas discharge tubing device and/or piezo-resistance.
4. according to claim 1 or 2 described siganl thunder-proof devices, it is characterized in that, described input and output two port side that are electrically connected on the output interface of box body, each is by the thick protection lightning protection circuit of being made up of piezo-resistance or gas discharge tube more than at least.
5. according to claim 1 or 2 described siganl thunder-proof devices, it is characterized in that, describedly form by resistance or inductance, resettable fuse class device with slightly protecting the decoupling circuit that is electrically connected between the lightning protection circuit at thin protection lightning protection circuit.
6. according to claim 1 or 2 described siganl thunder-proof devices, it is characterized in that respectively there is a thick protection lightning protection circuit at described protective circuit two ends.
7. according to claim 1 or 2 described siganl thunder-proof devices, it is characterized in that the described thin protective circuit two ends of being made up of transition diode and/or piezo-resistance in siganl thunder-proof device have one at least by R
1, R
2And R
3, R
4The decoupling circuit of forming, described decoupling circuit two ends are electrically connected with one separately by gas discharge tube G
1And G
2The thick protection lightning protection circuit of forming.
8. according to claim 1 or 2 described siganl thunder-proof devices, it is characterized in that being provided with at least on the described thin protection lightning protection circuit one has transition diode TZ1 and/or piezo-resistance to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066383 CN2842835Y (en) | 2005-11-01 | 2005-11-01 | The two-way prevention siganl thunder-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066383 CN2842835Y (en) | 2005-11-01 | 2005-11-01 | The two-way prevention siganl thunder-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842835Y true CN2842835Y (en) | 2006-11-29 |
Family
ID=37446706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520066383 Expired - Fee Related CN2842835Y (en) | 2005-11-01 | 2005-11-01 | The two-way prevention siganl thunder-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842835Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764399A (en) * | 2009-12-21 | 2010-06-30 | 浙江恒丰光电技术有限公司 | Cable television signal lightning arrester |
| CN103795045A (en) * | 2012-10-31 | 2014-05-14 | 华为技术有限公司 | Protective device |
-
2005
- 2005-11-01 CN CN 200520066383 patent/CN2842835Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764399A (en) * | 2009-12-21 | 2010-06-30 | 浙江恒丰光电技术有限公司 | Cable television signal lightning arrester |
| CN103795045A (en) * | 2012-10-31 | 2014-05-14 | 华为技术有限公司 | Protective device |
| CN103795045B (en) * | 2012-10-31 | 2017-08-18 | 华为技术有限公司 | Protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20101101 |