CN208849454U - A kind of thunder and lightning and electromagnetic pulse protecting circuit - Google Patents
A kind of thunder and lightning and electromagnetic pulse protecting circuit Download PDFInfo
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- CN208849454U CN208849454U CN201821258245.4U CN201821258245U CN208849454U CN 208849454 U CN208849454 U CN 208849454U CN 201821258245 U CN201821258245 U CN 201821258245U CN 208849454 U CN208849454 U CN 208849454U
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Abstract
A kind of thunder and lightning and electromagnetic pulse protecting circuit, including filter circuit, transfer current circuit, flat wave circuit, gas-discharge tube G, resistance R1, resistance R2, coil L1, coil L2, diode VD；Filter circuit includes inductance L3, capacitor C1, capacitor C2 and resistance R3；Transfer current circuit includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8；The output end of thunder and lightning and electromagnetic pulse protecting circuit is parallel with arrester；Flat wave circuit is smoothing reactor.The utility model eliminates the electric wave current interference of the generations such as lightning stroke, reduces interference of the thunder and lightning to electric elements, avoids the damage risk of active device and voltage, current sensitive device when being subjected to thunder and lightning destructiveness pulse；It is combined by protection circuit, transfer current circuit and electrical part, the balance and protection effect reached；Structure is simple, cost is relatively low, easy to use.
Description
Technical field
The utility model belongs to electrical equipment protection field, and in particular to a kind of thunder and lightning and electromagnetic pulse protecting circuit.
Background technique
Under complex electromagnetic environment, transient current can be generated on the core wire on cable, destroy electrical equipment.For electronics
For information equipment, generally has the characteristics that operating voltage and impact resistance voltage is low, poor anti jamming capability, so in complicated electromagnetism
It is easy for being destroyed under environment.Especially DC power supply electrical equipment, the operating voltage of itself are just very low, it is easy in complexity
It is breakdown under electromagnetic environment to burn.
A kind of Lightning Electromagnetic Pulse protection circuit for electric power linked network equipment of Publication No. CN207251196U, including
First energy leadage circuit, the second energy leadage circuit, the first intermediate circuit, the second intermediate circuit, the first pressure limiting circuit, second
Pressure limiting circuit, the first current-limiting inductance, the second current-limiting inductance, third current-limiting inductance and the 4th current-limiting inductance.The protection circuit is by three
Function is realized in grade circuit coordinates protection, in the case where guaranteeing that device systems wireless communication is unaffected, protects equipment not by thunder
The destruction of electric electromagnetic pulse, it is complex in structure, it be easy to cause circuit to consume energy larger situation.Existing electrical equipment protection
Technology generallys use optical-electric module, and optical-electric module is easy to damage in the case where thunder discharge.
Summary of the invention
The purpose of this utility model is to solve the above problems, and provides a kind of thunder and lightning and electromagnetic pulse protecting circuit, eliminate and
The electric wave current interference that transfer lightning stroke or electromagnetic pulse generate reduces the interference of thunder and lightning or electromagnetic pulse to electric elements, structure
Simply, high reliablity, durability is good, small power consumption.
The technical solution of the utility model is a kind of thunder and lightning and electromagnetic pulse protecting circuit, including filter circuit, transfer electricity
Current circuit, flat wave circuit, gas-discharge tube G, resistance R1, resistance R2, coil L1, coil L2, diode VD；The one of resistance R1
End is connect with the output end of filter circuit, and the other end of resistance R1 is as port E；One end of resistance R2 and filter circuit it is another
Output end connection, the other end of resistance R2 is as port F；The both ends of coil L1 are connect with port E, port F respectively；Port E, end
Mouth F is connect with the two poles of the earth of gas-discharge tube G respectively, and the grounding electrode of gas-discharge tube G is connect with ground wire；The input of flat wave circuit
End is connect with port E, port F respectively；The anode of one output end of flat wave circuit and diode VD are connect, flat wave circuit it is another
One output end is as output end D；The cathode of diode VD is as output end C；Two input terminals of filter circuit respectively as
Input terminal A, input terminal B；Coil L1, coil L2 are wrapped on iron core T, and the both ends of transfer current circuit input end and coil L2 connect
It connects.
Further, the filter circuit includes inductance L3, capacitor C1, capacitor C2 and resistance R3, and one end of inductance L3 is made
For the input terminal of filter circuit, the other end of inductance L3 is connect with resistance R3, capacitor C1 respectively, the other end and capacitor of resistance R3
The other end of C2 connection, capacitor C1 is connect with the other end of capacitor C2, and capacitor C1 and capacitor C2 connecting pin extraction wire are as filter
Another input terminal of wave circuit, two output ends of the both ends of capacitor C2 as filter circuit.
Further, transfer current circuit includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R4's
One end is connect with resistance R5, resistance R8 respectively, and the other end of resistance R4, the other end of resistance R5 connect with the both ends of coil L2 respectively
Connect, the other end of resistance R8 is connect with resistance R6, resistance R7 respectively, the other end of resistance R6, resistance R7 the other end respectively with
The both ends of coil L2 connect.
Further, the output end of the thunder and lightning and electromagnetic pulse protecting circuit is parallel with arrester；Arrester ground end
It is connect with ground wire.
Further, the flat wave circuit is smoothing reactor.
The utility model has the beneficial effects that
1) the electric wave current interference for eliminating and shifting lightning stroke or electromagnetic pulse generation, reduces thunder and lightning or electromagnetic pulse to electric appliance
The interference of element avoids the risk of active device and voltage, current sensitive device when being subjected to the destructiveness pulse such as thunder and lightning；
2) by protection circuit, transfer current circuit and electrical part combination, the balance and protection effect reached；
3) structure is simple, high reliablity, and durability is good, low in energy consumption, at low cost, easy to use.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the circuit structure block diagram of the utility model.
Fig. 2 is the circuit diagram of filter circuit.
Fig. 3 is the circuit diagram of transfer current circuit.
Specific embodiment
As shown in Figure 1, a kind of thunder and lightning and electromagnetic pulse protecting circuit for electric power linked network equipment, including filter circuit,
Transfer current circuit, flat wave circuit, gas-discharge tube G, resistance R1, resistance R2, coil L1, coil L2, diode VD；Resistance
One end of R1 and the output end of filter circuit connect, and the other end of resistance R1 is as port E；One end of resistance R2 and filter circuit
Another output end connection, the other end of resistance R2 is as port F；The both ends of coil L1 are connect with port E, port F respectively；End
Mouth E, port F are connect with the two poles of the earth of gas-discharge tube G respectively, and the grounding electrode of gas-discharge tube G is connect with ground wire；Flat wave circuit
Input terminal connect respectively with port E, port F；One output end of flat wave circuit is connect with the anode of diode VD, Ping Bo electricity
The another output on road is as output end D；The cathode of diode VD is as output end C；Two input terminals of filter circuit point
It Zuo Wei not input terminal A, input terminal B；Coil L1, coil L2 are wrapped on iron core T, and transfer current circuit input end is with coil L2's
Both ends connection.
As shown in Fig. 2, filter circuit includes inductance L3, capacitor C1, capacitor C2 and resistance R3, one end of inductance L3 is as filter
The input terminal of wave circuit, the other end of inductance L3 are connect with resistance R3, capacitor C1 respectively, and the other end and capacitor C2 of resistance R3 connects
It connects, the other end of capacitor C1 is connect with the other end of capacitor C2, and capacitor C1 and the connecting pin capacitor C2 extraction wire are as filtered electrical
Another input terminal on road, two output ends of the both ends of capacitor C2 as filter circuit.
As shown in figure 3, transfer current circuit includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R4's
One end is connect with resistance R5, resistance R8 respectively, and the other end of resistance R4, the other end of resistance R5 connect with the both ends of coil L2 respectively
Connect, the other end of resistance R8 is connect with resistance R6, resistance R7 respectively, the other end of resistance R6, resistance R7 the other end respectively with
The both ends of coil L2 connect.
The output end of thunder and lightning and electromagnetic pulse protecting circuit is parallel with arrester.Arrester ground end is connect with ground wire.It keeps away
Thunder device model HY5WS-17/50Q.
Flat wave circuit is DLK series smoothing reactor.
Device using the above structure, in use, input terminal A, input terminal B are connected to power supply, filter circuit is filtered,
Have the function of filtering and protecting circuit；Ripple in flat wave circuit suppression circuit；Transfer current circuit will be struck by lightning or electromagnetism arteries and veins
The wave interference electric current of the generations such as punching is carried out shunting transfer and be consumed；Gas-discharge tube G and arrester carry out overvoltage protection, by thunder
The power consumption of generations such as electricity or electromagnetic pulse is discharged by ground wire to the influence for greatly, reducing surge, and electric power linked network is protected
The normal use of the electrical equipments such as equipment.
Claims (5)
1. a kind of thunder and lightning and electromagnetic pulse protecting circuit, which is characterized in that including filter circuit, transfer current circuit, Ping Bo electricity
Road, gas-discharge tube G, resistance R1, resistance R2, coil L1, coil L2, diode VD；One end of resistance R1 and filter circuit
Output end connection, the other end of resistance R1 is as port E；One end of resistance R2 and another output end of filter circuit connect, electricity
The other end of R2 is hindered as port F；The both ends of coil L1 are connect with port E, port F respectively；Port E, port F respectively with gas
The two poles of the earth of discharge tube G connect, and the grounding electrode of gas-discharge tube G is connect with ground wire；The input terminal of flat wave circuit respectively with port
E, port F connection；One output end of flat wave circuit is connect with the anode of diode VD, and the another output of flat wave circuit is made
For output end D；The cathode of diode VD is as output end C；Two input terminals of filter circuit are respectively as input terminal A, input
Hold B；Coil L1, coil L2 are wrapped on iron core T, and transfer current circuit input end is connect with the both ends of coil L2.
2. thunder and lightning according to claim 1 and electromagnetic pulse protecting circuit, which is characterized in that the filter circuit includes electricity
Feel input terminal of the one end of L3, capacitor C1, capacitor C2 and resistance R3, inductance L3 as filter circuit, the other end point of inductance L3
It is not connect with resistance R3, capacitor C1, the other end of resistance R3 is connect with capacitor C2, and the other end of capacitor C1 is another with capacitor C2's
Make at the both ends of end connection, capacitor C1 and another input terminal of capacitor C2 connecting pin extraction wire as filter circuit, capacitor C2
For two output ends of filter circuit.
3. thunder and lightning according to claim 1 and electromagnetic pulse protecting circuit, which is characterized in that the transfer current circuit packet
Resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 are included, one end of resistance R4 is connect with resistance R5, resistance R8 respectively, resistance
The other end of R4, the other end of resistance R5 are connect with the both ends of coil L2 respectively, the other end of resistance R8 respectively with resistance R6, electricity
R7 connection is hindered, the other end of resistance R6, the other end of resistance R7 are connect with the both ends of coil L2 respectively.
4. thunder and lightning and electromagnetic pulse protecting circuit according to claim 1 to 3, which is characterized in that the thunder and lightning
And the output end of electromagnetic pulse protecting circuit is parallel with arrester；Arrester ground end is connect with ground wire.
5. thunder and lightning and electromagnetic pulse protecting circuit according to claim 1 to 3, which is characterized in that the flat wave
Circuit is smoothing reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821258245.4U CN208849454U (en) | 2018-08-06 | 2018-08-06 | A kind of thunder and lightning and electromagnetic pulse protecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821258245.4U CN208849454U (en) | 2018-08-06 | 2018-08-06 | A kind of thunder and lightning and electromagnetic pulse protecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208849454U true CN208849454U (en) | 2019-05-10 |
Family
ID=66355246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821258245.4U Expired - Fee Related CN208849454U (en) | 2018-08-06 | 2018-08-06 | A kind of thunder and lightning and electromagnetic pulse protecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208849454U (en) |
-
2018
- 2018-08-06 CN CN201821258245.4U patent/CN208849454U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 Termination date: 20200806 |