CN201994655U - Lightning protector for power supply network of Ethernet - Google Patents

Lightning protector for power supply network of Ethernet Download PDF

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Publication number
CN201994655U
CN201994655U CN2010206533948U CN201020653394U CN201994655U CN 201994655 U CN201994655 U CN 201994655U CN 2010206533948 U CN2010206533948 U CN 2010206533948U CN 201020653394 U CN201020653394 U CN 201020653394U CN 201994655 U CN201994655 U CN 201994655U
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CN
China
Prior art keywords
thunder
lightning
circuit
power supply
power
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
Application number
CN2010206533948U
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Chinese (zh)
Inventor
殷建军
钟平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Pu Pu technology Limited by Share Ltd
Original Assignee
ZHUZHOU PUTIAN ZHONGPU LIGHTNING PROTECTION TECHNOLOGY Co Ltd
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Application filed by ZHUZHOU PUTIAN ZHONGPU LIGHTNING PROTECTION TECHNOLOGY Co Ltd filed Critical ZHUZHOU PUTIAN ZHONGPU LIGHTNING PROTECTION TECHNOLOGY Co Ltd
Priority to CN2010206533948U priority Critical patent/CN201994655U/en
Application granted granted Critical
Publication of CN201994655U publication Critical patent/CN201994655U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a lightning protector for a power supply network of Ethernet. The lightning protector is characterized in that the power supply network of the Ethernet is connected with a signal anti-lightning circuit and a power source anti-lightning circuit respectively; the signal anti-lightning circuit consists of a first grade thunder leakage circuit, a decoupling circuit an a secondary grade thunder leakage circuit which are sequentially connected between the input end and the output end of the lightning protector, and the three parts are respectively connected with four network data transmission wires; the power supply wires of the power source anti-lightning circuit comprise a 4/5 wire pair and a 7/8 wire pair, the power source anti-lightning circuit consists of a first grade power source thunder leakage circuit, a power source decoupling circuit and a secondary grade power source thunder leakage circuit which are sequentially connected between the input end and the output end of the lightning protector, and the three parts are respectively connected with two power source transmission wires.

Description

Power over Ethernet network ' s thunder device
Technical field
The utility model relates to a kind of lightning protection device of the communications field, in particular to a kind of lightning protection device of POE network.
Background technology
POE is also referred to as the electric power system (POL based on local area network (LAN), Power over LAN) or active Ethernet (Active Ethernet), sometimes also be called Power over Ethernet for short, this is to transmit the newest standards standard of data and electrical power when utilizing existing standard ethernet transmission cable, and has kept the compatibility with existing Ethernet system and user.
(Power over Ethernet POE) refers to by 10base-T, 100BASE-T, the power supply of 1000BASE-T ethernet network, 100 meters the most of its reliable power supply distances Power over Ethernet.This not only need to power for those but power supply to close the equipment be inconvenient to obtain helpful especially, and general terminal equipment also can benefit from this technology, IP phone, WAP (wireless access point), network security camera all are good examples.Power over Ethernet has many good qualities, as compatibility in flexibility, remote management capability, high reliability and the global range etc.
According to the standard of IEEE 802.3af, there is dual mode to select the line of ethernet twisted pair to powering difference called after option A and option b.Option A is to transmit the used cable of data to (1/2﹠amp; 3/6) transmit direct current on simultaneously, as Fig. 1, option b make with LAN cable in the line that is not used to (4/5﹠amp; 7/8) transmits direct current, as Fig. 2.
At present, Chang Yong POE equipment is all very weak for the tolerance of overvoltage overcurrent.When lightning surge arrived, surge energy was easy to be transferred to POE equipment the inside, thereby causes the breaking-up of equipment even bring bigger harm.And general lightning protection device, or only signal is protected, or only protect with power supply.Very inconvenient in the use.
Simultaneously POE equipment has is the option A power supply, what have is the option b power supply, also has self-adaptation type, promptly can use option A to power, and also can power by operational version B.So just require lightning protection device also to be necessary for self-adaptation type.Also with enforcement, lightning protection device must be able to adapt to this this new standard to IEEE802.3at in addition.Therefore necessary this is further studied.
The utility model content
The purpose of this utility model is exactly the deficiency at existing Power over Ethernet network ' s thunder measure, provide a kind of integrated signal lighting protection and power lightning protection in one, can be applicable to option A and option b, be applicable to IEEE 802.3at standard, can be applied to all the POE networks under the existing condition.Has the Power over Ethernet network ' s thunder protector that reaction speed is fast, through-current capacity is big, easy to install simultaneously.
The purpose of this utility model is achieved through the following technical solutions, and a kind of Power over Ethernet network ' s thunder protector is connected to a signal lighting protection circuit and a power lightning protection circuit respectively at the Power over Ethernet net.Described signal lighting protection circuit is by an one-level thunder and lightning leadage circuit, a decoupling circuit and a secondary thunder and lightning leadage circuit, and is connected to successively between the input/output terminal of described lightning protection device, and described three ones all are connected respectively on 4 network data transmission lines.Wherein:
Described one-level thunder and lightning leadage circuit can comprise at least 2 three utmost point gas discharge tubes;
Described secondary thunder and lightning is let out circuit and is put and can comprise at least 2 bridge rectifiers and three TVS(Transient Voltage Suppress, and transient voltage suppresses) diode;
Described decoupling circuit comprises at least 4 resistance;
In the described one-level thunder and lightning leadage circuit, two inputs of each gas discharge tube can be connected respectively to the input of a signal line, and output interconnects and ground connection;
Described decoupling circuit can be made up of 4 resistance independently, and 4 resistance are connected on 4 holding wires respectively, between first order thunder and lightning leadage circuit and second level thunder and lightning leadage circuit;
Described second level thunder and lightning leadage circuit can be made of 2 rectifier bridge DB1, DB2 and 3 TVS diodes, two inputs of described each rectifier bridge respectively with decoupler and lightning protection device output between wherein two data wires link to each other, two defeated ends of each rectifier bridge all are associated in the two ends of described TVS diode SID1, the end of described two other TVS diode SID2, the SID3 all ground connection of an other end that links to each other with the two ends of TVS diode SID1 respectively.
The power supply supply lines of described power lightning protection circuit comprises that 4/5 line is to right with 7/8 line, the power lightning protection circuit is by one one level power supply thunder and lightning leadage circuit, a power supply decoupling circuit and a secondary power supply thunder and lightning leadage circuit, and be connected to successively between the input/output terminal of described lightning protection device, described three ones all are connected respectively on 2 power transmission lines.
A described level power supply thunder leadage circuit can comprise at least 1 three utmost point gas discharge tube.
Described secondary power supply thunder and lightning is let out circuit and is put and can comprise at least 3 TVS diodes.
Described power supply decoupling circuit comprises at least 2 inductance.
In the described level power supply thunder and lightning leadage circuit, two inputs of gas discharge tube can be connected respectively to the input of a signal line, and output interconnects and ground connection.
Described power supply decoupling circuit can be made up of 2 inductance independently, and 2 inductance are connected on 2 power transmission lines respectively, between first order power supply thunder and lightning leadage circuit and second level power supply thunder and lightning leadage circuit.
Second level power supply thunder and lightning leadage circuit 4/5, connects TVS diode SID4 two ends between 7/8 line, the end of two other TVS diode SID5, the SID6 all ground connection of an other end that links to each other with the two ends of TVS diode SID4 respectively.
The technique scheme power supply is by 4/5,7/8 transmission, and signal can be applied to the POE option b by 1,2,3,6 transmission, when signal protection circuit device parameters select suitable, thereby the transmission that just can be applicable to power supply is applied to the POE option A.In the equipment of different POE schemes, can both be applied to this lightning protection device like this.Equally also be applicable to the substandard POE network of IEEE803.2 at.
The utility model compared with prior art has following advantage: the protection of current collection source is protected in one with signal, is applicable to POE option A and option b, uses flexibly, is suitable for all POE networks.Do not worry the lightning protection device of misloading different schemes and cause accident.The first order adopts the gas discharge tube discharge simultaneously, and its discharge capability is very strong, can bleed off most of thunder and lightning energy, and second selects high-quality for use, and the low TVS diode that holds guarantees that the express network transmission is unaffected; Its reaction speed is fast, and pincers force down, and guaranteeing can not had any influence to POE equipment by the lightning wave after its wrong system; Protect equipment well, excellent working performance.Volume is little, and exquisite appearance is easy to install.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit diagram that the utility model is executed example.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Embodiment one
As shown in Figure 1, a kind of Power over Ethernet network ' s thunder protector is connected to a signal lighting protection circuit and a power lightning protection circuit respectively at the Power over Ethernet net.
As shown in Figure 2, be connected between described input and the output being connected with one-level thunder and lightning leadage circuit A1 and A2, decoupling circuit B1 and B2 secondary thunder and lightning leadage circuit C1 and C2 between the input/output terminal in turn.
Institute's art one-level thunder and lightning drainage discharge road signal is by 2 three utmost point gas discharge tubes, power unit just is made of 1 three utmost point gas discharge tube, the input of described signal using gases discharge tube is connected to the input of a signal line, the output of described each gas discharge tube interconnects ground connection, as A1 part among Fig. 1, two inputs of gas discharge tube GAS1 are connected respectively to the 1st, No. 2 holding wire ports, output head grounding, two inputs of gas discharge tube GAS2 are connected respectively to the 3rd, No. 6 holding wire ports, output head grounding, the input of described electric using gases discharge tube is connected to the input of a dozen power lines, the output ground connection of gas discharge tube.As A2 part among Fig. 1, two inputs of gas discharge tube GAS3 are connected respectively to the port of the 4th or 5 and 7 or No. 8 power line, output head grounding.In circuit, invade thunderstorm hour; gas discharge tube can trigger immediately; and the thunder and lightning path of releasing will be formed between line and the ground; with lightning current from discharge tube is released ground; adopt 3 gas discharge tubes can realize all circuits are realized full guard; make that invading thunder and lightning on 8 line free-throw lines can form bleed-off circuit by gas discharge tube and ground; indirect allow 8 lines be that reference potential forms the approximate electricity that waits and lives with ground; in order to avoid between line and the line because of the potential difference rising damage equipment of thunder and lightning shape; gas discharge tube possesses the ability of the big thunder and lightning energy of releasing; but gas discharge tube is treated a little according to this of gas discharge tube relatively poor the utility model the lightning overvoltage limitation capability; the first order circuit that gas discharge tube is released as thunder and lightning, can satisfy the purpose of most lightning currents of releasing.
Described decoupling circuit B1 is made up of 4 resistance R 1-R4 independently, and 4 resistance are connected on respectively in 4 holding wires, between first order thunder and lightning leadage circuit and second level thunder and lightning leadage circuit.Decoupling circuit B2 is made up of 2 inductance independently, and 2 inductance are connected on respectively in 2 power transmission lines, between first order thunder and lightning leadage circuit and second level thunder and lightning leadage circuit.Decoupling circuit plays energy and divides this effect, specifically is that most of energy of the obstruction concession thunder and lightning by resistance or inductance is released by first order thunder and lightning leadage circuit, and the small part of thunder and lightning is released by second level thunder and lightning leadage circuit.
Described secondary thunder and lightning leadage circuit C1 is made of 2 rectifier circuit DB1, DB2 and 3 TVS diode SID1 ~ SID3, two inputs of described each rectifier bridge respectively with decoupling circuit lightning protection device output between wherein two data wires link to each other, two outputs of each rectifier bridge all also close the two ends at described TVS diode SID1, the end of described two other TVS diode SID2, SID3 links to each other with the two ends of TVS diode SID1 respectively, and an other end is ground connection all.When the signal line place that second level thunder and lightning leadage circuit connects invades thunderstorm hour, all can utilize release the over the ground path of lightning current of 2 rectification circuits and SID2, SID3 between any line-to-ground in 4 circuits.Article 4, also can utilize 2 rectification circuits and SID2 to form the path of the lightning current of releasing between circuit between any circuit of circuit.Concrete effect as, when thunderstorm hour is invaded on the Line 1 road, lightning current can be released by following two kinds of approach, first kind is, lightning current by rectifier bridge DB1 again in SID3 releases lightning current to ground, to realize that Line 1 road and ground form indirect equipotential, second kind is, after lightning current passes through SID1 again by rectifier bridge DB1, can divide 2 approach to release, in rectifier bridge DB1 to 2 holding wire, with the current potential by the time on real No. 2 circuits and Line 1 road, in rectification circuit DB2 to 3, No. 6 holding wires, to realize the equipotential on 3, No. 6 circuits and Line 1 road.
Power unit two utmost point thunder and lightning leadage circuit C2 are made of 3 TVS diode SID4, SID5, SID6, the two ends of described TVS diode SID4 respectively with decoupling circuit B2 and lightning protection device output between two power lines link to each other.The end of described two other TVS diode SID5, SID6 links to each other with the two ends of TVS diode SID4 respectively, and an other end is ground connection all.When second level thunder and lightning converge that the discharge road connects the circuit place invade thunderstorm hour, two circuits all can utilize SID5, the SID6 lightning current of releasing over the ground.This effect of tool as, when No. 4 circuits are invaded thunderstorm hour, lightning current can be released by following two kinds of approach, first kind is, lightning current is released by SID5 in the ground, forms indirect equipotential to realize No. 4 circuits with ground, and second kind is, lightning current forms equipotential by SID4 with an other power circuit.The TVS diode that described C1, C2 secondary thunder and lightning leadage circuit are used, it has the ability of the less lightning current of releasing, but lead to lightning overvoltage is suppressed to very low level, has the little characteristics of interelectrode capacitance can guarantee not influence the transmission of data in the circuit simultaneously.Adopt the TVS diode to make second level thunder and lightning leadage circuit and can satisfy the inhibition lightning overvoltage, do not influence transfer of data, reach the purpose of the protection POE network equipment.

Claims (7)

1. Power over Ethernet network ' s thunder protector, it is characterized in that: be connected to a signal lighting protection circuit and a power lightning protection circuit respectively at the Power over Ethernet net, described signal lighting protection circuit is by an one-level thunder and lightning leadage circuit, a decoupling circuit and a secondary thunder and lightning leadage circuit, and be connected to successively between the input/output terminal of described lightning protection device, described three ones all are connected respectively on 4 network data transmission lines; The power supply supply lines of described power lightning protection circuit comprises that 4/5 line is to right with 7/8 line, the power lightning protection circuit is by one one level power supply thunder and lightning leadage circuit, a power supply decoupling circuit and a secondary power supply thunder and lightning leadage circuit, and be connected to successively between the input/output terminal of described lightning protection device, described three ones all are connected respectively on 2 power transmission lines.
2. Power over Ethernet network ' s thunder protector as claimed in claim 1 is characterized in that: described one-level thunder and lightning leadage circuit can comprise at least 2 three utmost point gas discharge tubes; In the described one-level thunder and lightning leadage circuit, two inputs of each gas discharge tube can be connected respectively to the input of a signal line, and output interconnects and ground connection.
3. Power over Ethernet network ' s thunder protector as claimed in claim 2 is characterized in that: described secondary thunder and lightning is let out circuit and is put and can comprise that at least 2 bridge rectifiers and three transient voltages suppress diodes; Described second level thunder and lightning leadage circuit can be made of 2 rectifier bridge DB1, DB2 and 3 TVS diodes, two inputs of described each rectifier bridge respectively with decoupler and lightning protection device output between wherein two data wires link to each other, two defeated ends of each rectifier bridge all are associated in the two ends of described TVS diode SID1, the end of described two other TVS diode SID2, the SID3 all ground connection of an other end that links to each other with the two ends of TVS diode SID1 respectively.
4. Power over Ethernet network ' s thunder protector as claimed in claim 3, it is characterized in that: described decoupling circuit comprises at least 4 resistance; Described decoupling circuit can be made up of 4 resistance independently, and 4 resistance are connected on 4 holding wires respectively, between first order thunder and lightning leadage circuit and second level thunder and lightning leadage circuit.
5. Power over Ethernet network ' s thunder protector as claimed in claim 1 is characterized in that: a described level power supply thunder leadage circuit can comprise at least 1 three utmost point gas discharge tube; In the described level power supply thunder and lightning leadage circuit, two inputs of gas discharge tube can be connected respectively to the input of a signal line, and output interconnects and ground connection.
6. Power over Ethernet network ' s thunder protector as claimed in claim 5 is characterized in that: described secondary power supply thunder and lightning is let out circuit and is put and can comprise at least 3 TVS diodes; Second level power supply thunder and lightning leadage circuit 4/5, connects TVS diode SID4 two ends between 7/8 line, the end of two other TVS diode SID5, the SID6 all ground connection of an other end that links to each other with the two ends of TVS diode SID4 respectively.
7. Power over Ethernet network ' s thunder protector as claimed in claim 1 is characterized in that: described power supply decoupling circuit comprises at least 2 inductance; Described power supply decoupling circuit can be made up of 2 inductance independently, and 2 inductance are connected on 2 power transmission lines respectively, between first order thunder and lightning leadage circuit and second level thunder and lightning leadage circuit.
CN2010206533948U 2010-12-11 2010-12-11 Lightning protector for power supply network of Ethernet Expired - Fee Related CN201994655U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102684181A (en) * 2012-05-14 2012-09-19 江苏中科梦兰电子科技有限公司 Anti-static and lightning-prevention dual protection circuit
CN102723706A (en) * 2012-05-30 2012-10-10 武汉烽火网络有限责任公司 PoE port overvoltage comprehensive protection circuit and method for realizing same
CN102969706A (en) * 2012-11-23 2013-03-13 上海斐讯数据通信技术有限公司 POE (Power Over Ethernet) power supply and lightning protection system and method
CN104362604A (en) * 2014-11-07 2015-02-18 南京信息工程大学 Surge protection device of mid-span active Ethernet
CN105356439A (en) * 2015-12-02 2016-02-24 上海航空电器有限公司 Protective circuit for external CAN (Controller Area Network) communication of airborne aerospace equipment
CN106105094A (en) * 2014-04-09 2016-11-09 凌力尔特公司 Broadband power coupling/uncoupling network for PoDL
CN107196285A (en) * 2017-07-26 2017-09-22 四川中光防雷科技股份有限公司 A kind of signal surge device protector and its circuit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102684181A (en) * 2012-05-14 2012-09-19 江苏中科梦兰电子科技有限公司 Anti-static and lightning-prevention dual protection circuit
CN102723706A (en) * 2012-05-30 2012-10-10 武汉烽火网络有限责任公司 PoE port overvoltage comprehensive protection circuit and method for realizing same
CN102723706B (en) * 2012-05-30 2015-08-19 武汉烽火网络有限责任公司 PoE port overvoltage integrated protection circuit and its implementation
CN102969706A (en) * 2012-11-23 2013-03-13 上海斐讯数据通信技术有限公司 POE (Power Over Ethernet) power supply and lightning protection system and method
CN102969706B (en) * 2012-11-23 2015-08-05 上海斐讯数据通信技术有限公司 The system and method for a kind of POE Power over Ethernet lightning protection
CN106105094A (en) * 2014-04-09 2016-11-09 凌力尔特公司 Broadband power coupling/uncoupling network for PoDL
CN106105094B (en) * 2014-04-09 2019-05-28 凌力尔特公司 Broadband power coupling/uncoupling network for PoDL
CN104362604A (en) * 2014-11-07 2015-02-18 南京信息工程大学 Surge protection device of mid-span active Ethernet
CN105356439A (en) * 2015-12-02 2016-02-24 上海航空电器有限公司 Protective circuit for external CAN (Controller Area Network) communication of airborne aerospace equipment
CN107196285A (en) * 2017-07-26 2017-09-22 四川中光防雷科技股份有限公司 A kind of signal surge device protector and its circuit

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: HUNAN ZHONGPU LIGHTNING CO., LTD.

Free format text: FORMER NAME: ZHUZHOU PUTIAN ZHONGPU THUNDER PROTECTION TECHNOLOGY CO.,LTD

CP01 Change in the name or title of a patent holder

Address after: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5

Patentee after: Hunan Zhongpu Lightning Co., Ltd.

Address before: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5

Patentee before: Zhuzhou Putian Zhongpu Lightning Protection Technology Co., Ltd.

C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5

Patentee after: Hunan Pu Pu technology Limited by Share Ltd

Address before: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5

Patentee before: Hunan Zhongpu Lightning Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110928

Termination date: 20191211

CF01 Termination of patent right due to non-payment of annual fee