CN110391649A - A kind of POE combining lightning protection circuit - Google Patents
A kind of POE combining lightning protection circuit Download PDFInfo
- Publication number
- CN110391649A CN110391649A CN201910636758.7A CN201910636758A CN110391649A CN 110391649 A CN110391649 A CN 110391649A CN 201910636758 A CN201910636758 A CN 201910636758A CN 110391649 A CN110391649 A CN 110391649A
- Authority
- CN
- China
- Prior art keywords
- discharge loop
- poe
- network transformer
- prime
- cable
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims description 20
- 230000001939 inductive effect Effects 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000002955 isolation Methods 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/025—Current limitation using field effect transistors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of POE to be combined lightning protection circuit, including network terminal, POE network transformer, prime discharge loop, rectification mechanism, power unit discharge loop and rear class discharge loop, network terminal are connect with prime discharge loop；Prime discharge loop, POE network transformer and rear class discharge loop are sequentially connected from front to back by differential lines；Power supply is connect with power unit discharge loop by conducting wire；Power unit discharge loop, rectifier bridge and POE network transformer are sequentially connected from front to back by conducting wire；POE network transformer is connected with power receiving equipment by cable.It is applied on cable by prime discharge loop, POE network transformer and rear class discharge loop lightning current of releasing in order to solve power supply, power receiving equipment is coupled to the cable of signal transmission, not only there is lightning protection function, but also power supply can be applied to cable and solve the problems, such as lightning protection and lay power supply line.
Description
Technical field
The present invention relates to anti-thunder technical fields, and in particular to a kind of POE combining lightning protection circuit.
Background technique
Web camera is widely used in supervision control engineering, and the laying of power supply is always extremely difficult in engineering construction
Thing, if be used in POE interchanger by cable it is very high to web camera power supply cost, and in practical applications by
Video camera that can not be all in factors such as distances all uses POE power supply for exchange.
It is mainly POE interchanger that POE video camera applies power supply on cable；POE interchanger is expensive to be only applicable to machine
Room and centrally connected power supply.Ordinary network camera (powering without POE) then needs to lay while laying signal wire in construction
Power supply line wiring is very cumbersome；And these two types of web cameras require lightning protection device protection video camera and interchanger in wiring.
Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide it is a kind of by improve monitoring lightning protection device circuit come realize by
Common network shooting electromechanical source is coupled to the cable of signal transmission, while having with lightning protection function.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of POE is combined lightning protection circuit, including network terminal, POE network transformer, prime discharge loop, rectification mechanism,
Power unit discharge loop and rear class discharge loop, network terminal are connect with prime discharge loop, and prime discharge loop is for letting out
Put the lightning current for being transmitted to network terminal；Prime discharge loop, POE network transformer and rear class discharge loop by differential lines from
It is sequentially connected after going to；Power supply is connect with power unit discharge loop by cable, and power unit discharge loop is for letting out
Put the inductive lightning electric current for carrying out self powered supply；Power unit discharge loop, rectification mechanism and POE network transformer by conducting wire from
It is sequentially connected after going to；POE network transformer is connected with power receiving equipment by cable.
It needs further to remark additionally, after lightning current is transmitted to network terminal by cable, most of lightning current quilt
Prime discharge loop is released, and the remaining thunder and lightning of network transformer decoupling is absorbed after flowing through rear class discharge loop；Power supply exists
Inductive lightning can be generated under thunderstorm weather, power unit discharge loop, which can release, carrys out the inductive lightning electric current of self powered supply, then
The electric current being cleaned after power unit discharge loop flow to rectification mechanism by conducting wire, unidirectionally leads since rectification mechanism has
The general character applies power supply on POE network transformer, then through POE network transformer so rectification mechanism can conduct electric current
It is added on cable, is power receiving equipment power supply by cable.
Further, the prime discharge loop includes varistor and one of varistor and discharge tube or two
Kind.
Further, the prime discharge loop is varistor and discharge tube, the connection side of varistor and discharge tube
Formula includes one or both of series connection and parallel connection.
Further, the POE network transformer is equipped with armature winding and secondary windings, rectification mechanism, armature winding, secondary
Grade winding and power receiving equipment are sequentially connected from front to back.
Further, the power receiving equipment includes web camera, and web camera passes through cable and POE network transformer
Connection.Power supply is transported to web camera by cable by POE network transformer, is powered for web camera.
Further, the rear class discharge loop include TVS diode, rectifier diode and semiconductor discharge tube or other
One or more of series-parallel combinations in nonlinear device.
A kind of POE combining lightning protection circuit, includes the following steps:
S1 lightning current can be released by prime discharge loop when being transmitted to by cable to network terminal and then pass through differential lines
Be transmitted to POE network transformer, prime discharge loop is released most lightning current, the lightning current of remainder conduct to
The rear class discharge circuit of POE network transformer rear end, rear class discharge circuit is further shunted to lightning current and pressure limiting, avoids thunder and lightning
The directly incoming web camera of stream, protection web camera are against damages；
The power supply of web camera simultaneously in order to be passed through network cable transmission by S2, but power supply is being output to network
Before video camera, due to thunderstorm weather, power supply can generate inductive lightning electric current, so power supply needs to first pass through conducting wire input
To power unit discharge loop, the induction lightening of power unit discharge loop self powered supply in future flows to be put and inhibits electric current；
Then electric current is transmitted to rectification mechanism by conducting wire by S3, power supply is applied to POE network by rectification mechanism and is become
On the centre cap of the armature winding of depressor, then secondary is connected to by the centre cap of the armature winding of POE network transformer
The centre cap of winding, secondary windings are connect with cable, thus complete for electric current to be applied on cable, it will finally by cable
Electric current is transferred on web camera.
Advantageous effects of the invention:
It is released lightning current by prime discharge loop, POE network transformer and rear class discharge loop；It is applied to solve power supply
It is added on cable, power supply is after the induction lightening that power supply generates is flowed and to be put by power unit discharge loop, by whole
It is applied to POE network transformer after stream bridge, then power supply is applied on cable by POE network transformer, finally by
On network cable transmission to power receiving equipment, power receiving equipment is coupled to the cable of signal transmission, not only there is lightning protection function, but also can will be for
Power supply is applied to cable and solves the problems, such as lightning protection and lay power supply line.
Detailed description of the invention
Fig. 1 is circuit composition schematic diagram.
The network POE transformer 1；Prime discharge loop 2；Rectification mechanism 3；Power unit discharge loop 4；Rear class discharge loop
5。
Specific embodiment
Below with reference to attached drawing, the invention will be further described, it should be noted that following embodiment is with this technology
Premised on scheme, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to this
Embodiment.
A kind of POE combining lightning protection circuit, as shown in Figure 1, discharging back including network terminal, POE network transformer 1, prime
Road 2, rectification mechanism 3, power unit discharge loop 4 and rear class discharge loop 5, network terminal is connect with prime discharge loop 2, preceding
Grade discharge loop 2 is transmitted to the lightning current of network terminal for releasing；Prime discharge loop 2, POE network transformer 1 and rear class
Discharge loop 5 is sequentially connected from front to back by differential lines；Power supply is connect with power unit discharge loop 4 by conducting wire,
Power unit discharge loop 4 carrys out the inductive lightning electric current of self powered supply for releasing；Power unit discharge loop 4, rectification mechanism 3
It is sequentially connected from front to back with POE network transformer 1 by conducting wire；POE network transformer 1 and power receiving equipment are connected by cable
It connects.
It needs further to remark additionally, after lightning current is transmitted to network terminal by net, most of lightning current is preceding
Grade discharge loop 2 is released, and the remaining thunder and lightning of 1 decoupling of network transformer is absorbed after flowing through rear class discharge loop 5；Power supply exists
Inductive lightning can be generated under thunderstorm weather, power unit discharge loop 4, which can release, carrys out the inductive lightning electric current of self powered supply, then
The electric current being cleaned after power unit discharge loop 4 flow to rectification mechanism 3 by conducting wire, since rectification mechanism 3 has list
To conduction, so rectification mechanism 3 can conduct electric current on POE network transformer 1, then will power through POE network transformer 1
Power supply is applied on cable powers for power receiving equipment.In a particular application, rectification mechanism can be rectifier bridge.
Further, the prime discharge loop 2 includes varistor and one of varistor and discharge tube or two
Kind.
Further, the prime discharge loop 2 is varistor and discharge tube, the connection side of varistor and discharge tube
Formula includes one or both of series connection and parallel connection.
Further, the POE network transformer 1 be equipped with armature winding and secondary windings, rectification mechanism 3, armature winding,
Secondary windings and power receiving equipment are sequentially connected from front to back.
Further, the power receiving equipment includes web camera, and web camera passes through cable and POE network transformer
1 connection.Power supply is transported to web camera by cable by POE network transformer 1, is powered for web camera.
Further, the rear class discharge loop 5 include TVS diode, rectifier diode and semiconductor discharge tube or its
One or more of series-parallel combinations in his nonlinear device.
A kind of POE combining lightning protection circuit, includes the following steps:
S1 lightning current can be released and then be passed through by prime discharge loop 2 when being transmitted to by cable to network terminal differential lines
Be transmitted to POE network transformer 1, most of lightning current can be released by prime discharge loop 2, the lightning current of remainder conduct to
The rear class discharge circuit 5 of 1 rear end of POE network transformer, rear class discharge circuit 5 is further shunted to lightning current and pressure limiting, avoids
The directly incoming web camera of lightning current, protection web camera are against damages；
The power supply of web camera simultaneously in order to be passed through network cable transmission by S2, but power supply is being output to network
Before video camera, due to thunderstorm weather, power supply can generate inductive lightning electric current, so power supply needs to first pass through conducting wire input
To power unit discharge loop 4, the induction lightening of power unit discharge loop self powered supply in 4 future flows to be put and presses down electric current
System；
Then electric current is transmitted to rectification mechanism 3 by conducting wire by S3, power supply is applied to POE network by rectification mechanism 3
On the centre cap of the armature winding of transformer 1, then it is connected to by the centre cap of the armature winding of POE network transformer 1
The centre cap of secondary windings, secondary windings are connect with cable, to complete for electric current to be applied on cable, finally by net
Line transfers current on web camera.
For those skilled in the art, it can be provided various corresponding according to above technical solution and design
Change and modification, and all these change and modification, should be construed as being included within the scope of protection of the claims of the present invention.
Claims (7)
1. a kind of POE is combined lightning protection circuit, which is characterized in that including network terminal, POE network transformer, prime discharge loop,
Rectification mechanism, power unit discharge loop and rear class discharge loop, network terminal are connect with prime discharge loop, and prime is discharged back
Road is transmitted to the lightning current of network terminal for releasing；Prime discharge loop, POE network transformer and rear class discharge loop pass through
Differential lines are sequentially connected from front to back；Power supply is connect with power unit discharge loop by conducting wire, and power unit discharges back
The inductive lightning electric current of self powered supply is carried out for releasing in road；Power unit discharge loop, rectification mechanism, POE network transformer are logical
Conducting wire is crossed to be sequentially connected from front to back；POE network transformer is connected with power receiving equipment by cable.
2. POE according to claim 1 is combined lightning protection circuit, which is characterized in that the prime discharge loop includes pressure-sensitive
Resistance and one or both of varistor and discharge tube.
3. POE according to claim 2 is combined lightning protection circuit, which is characterized in that the prime discharge loop is pressure-sensitive electricity
The connection type of resistance and discharge tube, varistor and discharge tube includes one or both of series connection and parallel connection.
4. POE according to claim 1 is combined lightning protection circuit, which is characterized in that the POE network transformer is equipped with just
Grade winding and secondary windings, rectification mechanism, armature winding, secondary windings and power receiving equipment are sequentially connected from front to back.
5. POE according to claim 1 is combined lightning protection circuit, which is characterized in that the power receiving equipment includes network shooting
Machine, web camera are connect by cable with POE network transformer.
6. POE according to claim 1 is combined lightning protection circuit, which is characterized in that the rear class discharge loop includes TVS bis-
It is one or more of in pole pipe, rectifier diode and semiconductor discharge tube.
7. the POE as described in claim 1-6 is any is combined lightning protection circuit, which comprises the steps of:
Then S1 lightning current can be released when being transmitted to by cable to network terminal by prime discharge loop through differential lines conduction
To POE network transformer, before the isolation by POE network transformer, most of lightning current is all released by prime discharge loop,
The lightning current of remainder is conducted to the rear class discharge circuit of POE network transformer rear end, and rear class discharge circuit flows into thunder and lightning
One step shunts and pressure limiting；
S2 power supply passes through conducting wire input current to power unit discharge loop, power unit discharge loop self-powered in future electricity
The induction lightening in source, which flows, to be put and inhibits, and electric current is then transmitted to rectification mechanism by conducting wire, by rectification mechanism power supply
It is applied on POE network transformer, electric current is transmitted to power receiving equipment by cable again by POE network transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636758.7A CN110391649A (en) | 2019-07-15 | 2019-07-15 | A kind of POE combining lightning protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636758.7A CN110391649A (en) | 2019-07-15 | 2019-07-15 | A kind of POE combining lightning protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110391649A true CN110391649A (en) | 2019-10-29 |
Family
ID=68285066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910636758.7A Pending CN110391649A (en) | 2019-07-15 | 2019-07-15 | A kind of POE combining lightning protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110391649A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202940824U (en) * | 2012-11-28 | 2013-05-15 | 上海斐讯数据通信技术有限公司 | Power over Ethernet (POE) device |
| CN203406606U (en) * | 2013-08-14 | 2014-01-22 | 江扬科技(无锡)有限公司 | Lightning protection circuit powered over gigabit Ethernet (POE) |
| CN209982050U (en) * | 2019-07-15 | 2020-01-21 | 韶关高尔德防雷科技有限公司 | POE closes lightning protection circuit |
-
2019
- 2019-07-15 CN CN201910636758.7A patent/CN110391649A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202940824U (en) * | 2012-11-28 | 2013-05-15 | 上海斐讯数据通信技术有限公司 | Power over Ethernet (POE) device |
| CN203406606U (en) * | 2013-08-14 | 2014-01-22 | 江扬科技(无锡)有限公司 | Lightning protection circuit powered over gigabit Ethernet (POE) |
| CN209982050U (en) * | 2019-07-15 | 2020-01-21 | 韶关高尔德防雷科技有限公司 | POE closes lightning protection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106159926B (en) | A kind of surge protection circuit and Surge Protector | |
| TW201112674A (en) | Long-distance PoE system, and power sourcing equipment and method | |
| CN106972769A (en) | A kind of light current electrical load overvoltage crowbar | |
| CN104993938B (en) | The PoE transparent transmission power supply circuits of low cost | |
| CN104619083A (en) | Compatible silicon controlled type constant voltage circuit, LED light conditioning circuit and LED lighting device | |
| CN103337841B (en) | Bidirectional current limiter based on two-way BUCK converter and bidirectional current limiting method | |
| CN209982050U (en) | POE closes lightning protection circuit | |
| CN110391649A (en) | A kind of POE combining lightning protection circuit | |
| CN207010227U (en) | A kind of surge device protector and its circuit | |
| CN201549046U (en) | Power line carrier transmission electric fire hazard alarm monitoring system | |
| CN202616765U (en) | Gigabit Ethernet power supply overvoltage protector | |
| WO2020000864A1 (en) | Direct current voltage-type plc photovoltaic shutdown device circuit | |
| CN101552443B (en) | Method for melting ice of dipolar direct current transmission line | |
| CN106100122B (en) | Breaker data acquisition controller and its control method to breaker | |
| CN104967111B (en) | A kind of multiport direct current substation topology structure | |
| CN208754291U (en) | A kind of industry WiFi expansion module | |
| CN202749807U (en) | Ethernet shunt transition power supply overvoltage protector | |
| CN203251084U (en) | Bi-directional current limiter based on bi-directional BUCK converter | |
| CN1747271A (en) | Protector of leakage and electricity steal | |
| CN106647908B (en) | A kind of monopole power supply constant current constant voltage conversion electric power and method | |
| CN113489932A (en) | Device for realizing data, control and power transmission based on same coaxial line | |
| CN206743267U (en) | A kind of non-isolated power supply circuit and equipment | |
| CN103647243A (en) | Method and device for deicing direct current transmission line of extra-high-voltage direct current project | |
| CN206412762U (en) | A kind of surge protecting circuit and surge protector | |
| CN206759620U (en) | A kind of simple and direct tunnel HD video of low cost changes system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 512300 No.1 industrial transfer park, Lelang Road, Lechang City, Shaoguan City, Guangdong Province Applicant after: Guangdong Gould Group Co.,Ltd. Address before: 512300 No.1 industrial transfer park, Lelang Road, Lechang City, Shaoguan City, Guangdong Province Applicant before: SHAOGUAN GAOERDE LIGHTNING PROTECTION TECHNOLOGY CO.,LTD. |
|
| CB02 | Change of applicant information |