CN206283234U - The protection circuit module of Power-over-Ethernet passage, supplying channels, equipment and system - Google Patents
The protection circuit module of Power-over-Ethernet passage, supplying channels, equipment and system Download PDFInfo
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- CN206283234U CN206283234U CN201621312436.5U CN201621312436U CN206283234U CN 206283234 U CN206283234 U CN 206283234U CN 201621312436 U CN201621312436 U CN 201621312436U CN 206283234 U CN206283234 U CN 206283234U
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Abstract
The protection circuit module of the Power-over-Ethernet passage of the application, supplying channels, equipment and system, including：Connection esd protection circuit, communication line short-circuit protection circuit, power source charging sequential control circuit and short circuit protection circuit；Communication line short-circuit protection circuit is connected with connection esd protection circuit, and connection esd protection circuit is connected by network data line with Network Interface Module.The input of power source charging sequential control circuit is connected with the power module of power supply unit, and output end is connected with the input of power supply short-circuit protective circuit, and the output end of power supply short-circuit protective circuit is connected by power line with Network Interface Module.Network Interface Module is connected with the Network Interface Module of power receiving equipment, is power receiving equipment transmission electric energy and data, due to being provided with connection short-circuit protection circuit and short circuit protection circuit, supplying channels can be protected not to be burned out because of short circuit.
Description
Technical field
The application is related to network transmission system and electric power system field, more particularly to a kind of Power-over-Ethernet passage protection electricity
Road module, supplying channels, equipment and system.
Background technology
With the extensive use of safety defense monitoring system, the first-class terminal device of network doorbell, intercom, network shooting is in life
In popularize very much.And it is following problem appear to is that:The distributed power supply of various terminal equipment increases safety monitoring
The difficulty of system deployment.And the construction cost that increased system deployment is, the difficulty for increasing system operation maintenance management；And
The safety coefficient reduction of system, the protection circuit of existing Power-over-Ethernet equipment is not complete, is set using the Power-over-Ethernet of 8 ports
Standby, power supply short circuit and data wire short-circuit protection are not designed.
In engineering construction, the crystal head of network interface needs to suppress at the scene, so that 8 netting twines are connected together；It is right
In the Power-over-Ethernet equipment using 8 port Power-over-Ethernets, if the short-circuit protection without power supply and network data, easily cause to burn
The PCB Copper Foils and netting twine of power line, network data line, serious meeting cause fire, engineering construction is there is potential safety hazard.
Utility model content
The application provides protection circuit module, supplying channels, equipment and the system of Power-over-Ethernet passage, can prevent network
Line short circuit.
According to the application's in a first aspect, the application provides a kind of protection circuit module of Power-over-Ethernet passage, including：It is logical
News line esd protection circuit, communication line short-circuit protection circuit, power source charging sequential control circuit and short circuit protection electricity
Road；The communication line short-circuit protection circuit is connected with the connection esd protection circuit, the connection esd protection circuit
(1-3) is connected by network data line with Network Interface Module；The input of the power source charging sequential control circuit and power supply
The power module connection of equipment, output end is connected with the input of the power supply short-circuit protective circuit, the power source short-circuit protection
The output end of circuit is connected by power line with the Network Interface Module of power supply unit.
According to the second aspect of the application, the application provides a kind of supplying channels, including Power-over-Ethernet passage described above
Protection circuit module.
According to the third aspect of the application, the application provides a kind of power supply unit, including supplying channels as described above, with
And, modular power source；The modular power source is connected with the power supply electrifying and sequencing circuit of the supplying channels.
According to the fourth aspect of the application, the application provides a kind of electric power system, including：Power supply unit as described above with
And power receiving equipment.
The protection circuit module of the Power-over-Ethernet passage of the application, supplying channels, equipment and system, including：Connection ESD
Protection circuit, communication line short-circuit protection circuit, power source charging sequential control circuit and short circuit protection circuit；Connection
Road short-circuit protection circuit is connected with connection esd protection circuit, and connection esd protection circuit is connect by network data line with network
Mouth mold block is connected.The input of power source charging sequential control circuit is connected with the power module of power supply unit, output end and power supply
The input connection of short-circuit protection circuit, the output end of power supply short-circuit protective circuit is connected by power line with Network Interface Module
Connect.Network Interface Module is connected with the Network Interface Module of power receiving equipment, so that for power receiving equipment transmits electric energy and data, due to
There is provided connection short-circuit protection circuit and short circuit protection circuit, so as to protect supplying channels not burnt because of short circuit
Ruin.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage are from description of the accompanying drawings below to implementation method is combined
Will be apparent and be readily appreciated that, wherein：
Fig. 1 is the structured flowchart of the protection circuit module of the Power-over-Ethernet passage of the embodiment of the present application；
Fig. 2 is another structured flowchart of the protection circuit module of the Power-over-Ethernet passage of the embodiment of the present application；
Fig. 3 for the embodiment of the present application Power-over-Ethernet passage protection circuit module power source charging sequential control circuit with
And the structural representation of short circuit protection circuit；
Connection esd protection circuit, communications of the Fig. 4 for the protection circuit module of the Power-over-Ethernet passage of the embodiment of the present application
The structural representation of line short protection circuit；
Fig. 5 is the structured flowchart of the Power-over-Ethernet passage of the embodiment of the present application；
Fig. 6 is the structured flowchart of the power supply unit of the embodiment of the present application；
Fig. 7 is the structured flowchart of the electric power system of the embodiment of the present application.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination accompanying drawing.The application provides one
Protection circuit module, supplying channels, equipment and the system of Power-over-Ethernet passage are planted, grid line short circuit can be prevented.
Embodiment one：
Fig. 1 is referred to, Fig. 1 is the structured flowchart of the protection circuit module of the Power-over-Ethernet passage of the embodiment of the present application one,
As shown in figure 1, the embodiment of the present application provides a kind of protection circuit module of Power-over-Ethernet passage, including：
Connection esd protection circuit 1-3, communication line short-circuit protection circuit 1-4, power source charging sequential control circuit 1-5
And short circuit protection circuit 1-6.
Communication line short-circuit protection circuit 1-4 is connected with connection esd protection circuit 1-3, connection esd protection circuit 1-
3 are connected by network data line 1-2 with Network Interface Module 1-1.
The input of power source charging sequential control circuit 1-5 is connected with the power module of power supply unit, output end and power supply
The input connection of short-circuit protection circuit 1-6, the output end of power supply short-circuit protective circuit 1-6 is set by power line 1-7 with power supply
Standby Network Interface Module 1-1 connections.
As shown in Fig. 2 in the present embodiment, the Network Interface Module 1-1 of power supply unit is RJ45 interfaces, RJ45 interface bags
Include:8 pins.
Wherein, the 1-2/3-6 pins of the RJ45 interfaces of power supply unit are network data lines, the RJ45 interfaces with power receiving equipment
1-2/3-6 pins connect one to one, by by the RJ45 interface grafting of the RJ45 interfaces of power supply unit and power receiving equipment, passing
Defeated network data is to receiving end equipment.The 4-5/7-8 pins of the RJ45 interfaces of power supply unit are power lines, with power receiving equipment
The 4-5/7-8 pins of RJ45 interfaces connect one to one, and input power can be sent into receiving end equipment.
In the present embodiment, connection esd protection circuit 1-3 is by network data line 1-2 and the 1-2 and 3- of RJ45 interfaces
6 pins are connected.
The output end of power supply short-circuit protective circuit 1-6 is connected by power line 1-7 with 4-5 the and 7-8 pins of RJ45 interfaces
Connect.
As shown in figure 3, in the present embodiment, power source charging sequential control circuit 1-5 includes：Main control unit U7, signaling switch
Q2 and power switch Q1.
Main control unit U7 is used to be spaced the electric energy of Preset Time reception power module 70 and export high level.
Signal metal-oxide-semiconductor Q2 is connected with the output end of main control unit U7, is turned on when main control unit U7 exports high level.
Power MOS pipe Q1 is connected with the output end of signal metal-oxide-semiconductor Q2, turns on and exports low when signal metal-oxide-semiconductor Q2 is turned on
During level, the power MOS pipe Q1 conductings, output electric energy to power supply short-circuit protective circuit 1-6.
Power source charging sequential control circuit 1-5 main devices include single-chip microcomputer U7, signal metal-oxide-semiconductor Q2, power MOS pipe Q1.
The supplying channels of multichannel are generally comprised due to power supply unit, by supplying channels all the way for a power receiving equipment is powered and is transmitted
Data.Preferably, power supply end equipment supports 16 road supplying channels.When end equipment of powering accesses multiple receiving end equipment, in order to
Enable multiple power supply unit sequence power-ons, therefore by the road supplying channels sequence power-on of single-chip microcomputer U7 programme-control 16, per road
Power-on time interval is adjustable, is preferably arranged in the system 30 seconds.Specifically, when single-chip microcomputer U7 exports high level, signal is opened
Close Q2 conductings, power switch Q1 conductings, so that receiving end equipment obtains electric.In the present embodiment, signaling switch Q2 and power switch Q1
Metal-oxide-semiconductor can be used.Signaling switch Q2 is preferably 60V, and the N-MOS pipes of 115mA, power switch Q1 preferably uses 60V, the P- of 26A
Metal-oxide-semiconductor.
The utilization of power source charging sequential control circuit 1-5, makes the upper electricity overshoot power reduction of system, can reduce modular power source
Power, it is cost-effective, and due to being controlled using single-chip microcomputer, thus remote controlled unlatching per road supplying channels and
Close.
Please continue to refer to Fig. 3, in the present embodiment, short circuit protection circuit 1-6 includes Power SBD D1, pressure
Quick resistance F1 and resettable fuse F2.
The anode of Power SBD D1 is connected with the output end of power source charging sequential control circuit 1-5, negative electrode string
Meet resettable fuse F2 and be followed by dc source.
Piezo-resistance F1 one end is connected with the negative electrode of Power SBD D1, one end ground connection.
Power supply short-circuit protective circuit 1-6 main devices include Power SBD D1, piezo-resistance F1 and can be extensive
Double insurance silk F2.Accessed without fool proof and non-polar occasion for receiving end device power supply (DPS), Schottky diode D1 can be played
Foolproof function, it is ensured that power supply will not be short-circuited.Piezo-resistance F1 is used for the surge protection of power port.Resettable fuse F2
For the short-circuit protection of power circuit, when supplying channels have short circuit to occur, output current is sharply increased, resettable fuse F2
Deenergization is powered；The type selecting of resettable fuse F2 can be selected according to the power of load and netting twine carrying, and selection can recover
Fuse will consider operational voltage value, it is impossible to which, less than maximum operational voltage value, resettable fuse is preferably used in systems
Parameter be 1.1A, 72V.
In the present embodiment, connection esd protection circuit 1-3 includes:Network transformer T2.
The input and output side of network transformer T2 is connected to Transient Suppression Diode (U1/U2/U5/U6).
The output end of network transformer T2 is also associated with ceramic anti-thunder tube (U3/U4).
As shown in figure 4, connection short-circuit protection circuit 1-4 is made up of 4 electric capacity (C1/C2/C3/C4).Because network becomes
Internal resistance very little between the line of RX1-/RX+ (TX1-/TX+) differential pair two of depressor T2, along with circuit board will to RX1-/RX+,
TX1-/TX+ does difference impedance matching, and the line width of circuit board wiring is typically smaller, in the middle of engineering construction, 8 core netting twine wholes
Short circuit together when, between the line of differential pair two RX1-/RX+ (TX1-/TX+) formed loop, can burn network transformer T2 and
The circuit board Copper Foil of RX1-/RX+ (TX1-/TX+) differential pair, can cause fire when serious.Using the characteristic of electric capacity blocking,
RJ45 interfaces can effectively protect connection to electric capacity, the method is sealed between differential pair RX1-/RX+ (TX1-/TX+).Electric capacity
(C1/C2/C3/C4) selection will consider the maximum workmanship voltage of system, and capacitance can not be bigger than normal, the system selection 100V,
0.1uF。
Connection short-circuit protection circuit 1-4 and power supply short-circuit protective circuit 1-6 are effectively combined, power line and connection it
Between, any short circuit, any misconnection can be protected effectively, will not burn circuit, outside wire rod and external equipment.
Please continue to refer to Fig. 4, connection esd protection circuit 1-3 main device has ceramic anti-thunder tube (U3/U4), transient state
Suppress diode (U1/U2/U5/U6), network transformer (T2), electric capacity (C1/C2/C3/C4) and resistance (R1/R2/R3/R4)
Composition.
Ceramic discharge tube (U3/U4) constitutes the first order and releases path, and releasing as high current is released to CHGND；Transient state
Suppress diode (U5/U6), electric capacity (C1/C2/C3/C4) and constitute the second level to release path, electric capacity decoupling is used in centre；Transient state suppresses
Diode (U1/U2), network transformer T2 and resistance (R1/R2/R3/R4) constitute the third level and release path, centre network
Transformer T2 and resistance (R1/R2/R3/R4) decoupling.
Transient Suppression Diode (U1/U2/U5/U6), network transformer (T2) are in circuit as differential mode protection and common mode
Protection.
The common mode protection of Transient Suppression Diode is the ground of protection back-end circuit, Transient Suppression Diode and network transformer
Must be i.e. signal ground GND samely with the ground of back-end circuit.
In the system high current release ground CHGND be connected with ground, high current release CHGND and signal ground GND,
PCBA is entirely isolated；Isolation spacing preferably controls 3mm.
What the system was used releases path with ground processing method, and test result shows：Common mode residual voltage is low, back-end circuit with it is big
Current drain ground is isolated, and the whether fine or not of the earth situation influences less on it；Front end ceramic discharge tube is directly grounded,
High current is directly released to the earth, rear end TVS plays the protection of second and third level, and protecting effect is good；Good stability；Reduce from
The path of the electric current that front end comes, so as to protect the circuit or chip of rear end well.
Embodiment two：
As shown in figure 5, in the present embodiment, there is provided a kind of supplying channels 200, including the netting twine introduced such as embodiment one is supplied
The protection circuit module of electric channel.
Embodiment three：
As shown in fig. 6, in the present embodiment, there is provided a kind of power supply unit 300, including the power supply introduced such as embodiment two is led to
Road 200, and, modular power source 70；Modular power source 70 is connected with the power supply electrifying and sequencing circuit 1-5 of supplying channels.
In the present embodiment, the quantity of supplying channels is preferably 16 tunnels.
The input of modular power source 70 is 220V AC powers, by after the internal circuit treatment of modular power source 70, exporting 9V
The dc source of~48V, as the input power of power source charging sequential control circuit 1-5.
Example IV：
As shown in fig. 7, in the present embodiment, there is provided a kind of electric power system 500, including：Such as the power supply that embodiment three is introduced
Equipment 300 and power receiving equipment 400.
Above content is to combine specific embodiment further detailed description of the utility model, it is impossible to assert
Specific implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple deduction or replace can also be made.
Claims (10)
1. a kind of protection circuit module of Power-over-Ethernet passage, it is characterised in that including：
Connection esd protection circuit (1-3), communication line short-circuit protection circuit (1-4), power source charging sequential control circuit (1-
And short circuit protection circuit (1-6) 5)；
The communication line short-circuit protection circuit (1-4) is connected with the connection esd protection circuit (1-3), the connection
Esd protection circuit (1-3) is connected by network data line (1-2) with Network Interface Module (1-1)；
The input of the power source charging sequential control circuit (1-5) is connected with the power module of power supply unit, output end and institute
The input connection of power supply short-circuit protective circuit (1-6) is stated, the output end of the power supply short-circuit protective circuit (1-6) passes through power supply
Line (1-7) is connected with the Network Interface Module (1-1) of power supply unit.
2. the protection circuit module of Power-over-Ethernet passage as claimed in claim 1, it is characterised in that the Network Interface Module
(1-1) is RJ45 interfaces, and the RJ45 interfaces include:8 pins.
3. the protection circuit module of Power-over-Ethernet passage as claimed in claim 2, it is characterised in that the connection ESD is protected
Protection circuit (1-3) is connected by network data line (1-2) with 1-2 the and 3-6 pins of RJ45 interfaces；
The output end of the power supply short-circuit protective circuit (1-6) is managed by power line (1-7) with the 4-5 and 7-8 of RJ45 interfaces
Pin is connected.
4. the protection circuit module of the Power-over-Ethernet passage as described in any one in claims 1 to 3, it is characterised in that
The power source charging sequential control circuit (1-5) includes：Main control unit U7, signaling switch Q2 and power switch Q1；
The main control unit U7 is used to be spaced the electric energy of the Preset Time reception power module and export high level；
The signal metal-oxide-semiconductor Q2 is connected with the output end of the main control unit U7, when the main control unit U7 exports high level
Conducting；
The power MOS pipe Q1 is connected with the output end of the signal metal-oxide-semiconductor Q2, turns on and exports in the signal metal-oxide-semiconductor Q2
During low level, the power MOS pipe Q1 conductings, output electric energy to the power supply short-circuit protective circuit (1-6).
5. the protection circuit module of Power-over-Ethernet passage as claimed in claim 4, it is characterised in that the short circuit protection
Circuit (1-6) includes Power SBD D1, piezo-resistance F1 and resettable fuse F2；
The anode of the Power SBD D1 is connected with the output end of the power source charging sequential control circuit (1-5),
Negative electrode concatenates the resettable fuse F2 and is followed by dc source；
Described piezo-resistance F1 one end is connected with the negative electrode of the Power SBD D1, one end ground connection.
6. the protection circuit module of the Power-over-Ethernet passage as described in any one in claims 1 to 3, it is characterised in that
The connection esd protection circuit (1-3) includes:Network transformer T2；
The input and output side of the network transformer T2 is connected to Transient Suppression Diode (U1/U2/U5/U6)；
The output end of the network transformer T2 is also associated with ceramic anti-thunder tube (U3/U4).
7. a kind of supplying channels, it is characterised in that including the Power-over-Ethernet passage as described in any one in claim 1-6
Protection circuit module.
8. a kind of power supply unit, it is characterised in that including supplying channels as claimed in claim 7, and, modular power source；Institute
Modular power source is stated to be connected with the power supply electrifying and sequencing circuit of the supplying channels.
9. power supply unit as claimed in claim 8, it is characterised in that the quantity of the supplying channels is 16 tunnels.
10. a kind of electric power system, it is characterised in that including：Power supply unit as claimed in claim 8 or 9 and power receiving equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312436.5U CN206283234U (en) | 2016-11-30 | 2016-11-30 | The protection circuit module of Power-over-Ethernet passage, supplying channels, equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312436.5U CN206283234U (en) | 2016-11-30 | 2016-11-30 | The protection circuit module of Power-over-Ethernet passage, supplying channels, equipment and system |
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| Publication Number | Publication Date |
|---|---|
| CN206283234U true CN206283234U (en) | 2017-06-27 |
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ID=59075962
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621312436.5U Active CN206283234U (en) | 2016-11-30 | 2016-11-30 | The protection circuit module of Power-over-Ethernet passage, supplying channels, equipment and system |
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| Country | Link |
|---|---|
| CN (1) | CN206283234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532625A (en) * | 2016-11-30 | 2017-03-22 | 深圳市泛海三江科技发展有限公司 | Protection circuit module for network cable power supply channel, power supply channel, power supply equipment and power supply system |
-
2016
- 2016-11-30 CN CN201621312436.5U patent/CN206283234U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532625A (en) * | 2016-11-30 | 2017-03-22 | 深圳市泛海三江科技发展有限公司 | Protection circuit module for network cable power supply channel, power supply channel, power supply equipment and power supply system |
| CN106532625B (en) * | 2016-11-30 | 2018-11-30 | 深圳市泛海三江科技发展有限公司 | Protection circuit module, supplying channels, equipment and the system in Power-over-Ethernet channel |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 6th floor, building 3, Nanyou 4th Industrial Zone, Nanshan Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Sanjiang Intelligent Control Technology Co.,Ltd. Address before: 518054 6th floor, building 3, Nanyou 4th Industrial Zone, Nanshan Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN FANHAI SANJIANG TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Protection circuit module, power supply channel, equipment and system of network cable power supply channel Effective date of registration: 20221124 Granted publication date: 20170627 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: Shenzhen Sanjiang Intelligent Control Technology Co.,Ltd. Registration number: Y2022980023289 |