CN204732868U - The microcomputer protecting controller of lightning protection - Google Patents
The microcomputer protecting controller of lightning protection Download PDFInfo
- Publication number
- CN204732868U CN204732868U CN201520526740.9U CN201520526740U CN204732868U CN 204732868 U CN204732868 U CN 204732868U CN 201520526740 U CN201520526740 U CN 201520526740U CN 204732868 U CN204732868 U CN 204732868U
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- CN
- China
- Prior art keywords
- circuit
- lightning
- lightning protection
- microcomputer
- microcomputer protecting
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model discloses a kind of microcomputer protecting controller of lightning protection, aiming to provide one can prevent thunderbolt from affecting microcomputer protecting controller circuit, prevent thunder and lightning to the microcomputer protecting controller of the lightning protection of the damage of equipment, solve the interference of lightning wave to microcomputer protecting device main circuit, its drip irrigation device is also coupled with lightning protection circuit between power circuit and microcomputer main circuit, and described lightning protection circuit comprises lightning circuit and filter circuit; Described lightning circuit in order to absorb thunder and lightning interference signal, and exports the signal of band harmonic wave; Described filter circuit is coupled to lightning circuit, in order to filtering high order harmonic component and the power supply of stable output.The utility model is applicable to microcomputer protecting controller technical field.
Description
Technical field
The utility model relates to a kind of microcomputer protecting controller, and more particularly, it relates to a kind of microcomputer protecting controller of lightning protection.
Background technology
Microcomputer Protection by high integration, bus do not go out chip single-chip microcomputer, high-precision current voltage transformer, high insulation resistance export the parts such as auxiliary relay, high-reliability switch power module form.Microcomputer protecting device, mainly as the power plant, transformer station, power distribution station etc. of 110KV and following electric pressure, also can be used as protection and the observing and controlling of the electric current and voltage of system in electric pressure between part 70V-220V.
At present, the microcomputer protecting device on market is widely used.But in running, part transformer station or distribution substation occur due to thunderstorm weather, and thunder and lightning forms larger disturbing magnetic field, causes microcomputer protecting device to be subject to the phenomenon of strong electromagnetic scaling loss plate, has had a strong impact on the reliability service of system.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide one that thunderbolt can be prevented the impact of microcomputer protecting controller circuit, prevents thunder and lightning to the microcomputer protecting controller of the lightning protection of the damage of equipment.
For achieving the above object, the utility model provides following technical scheme: a kind of microcomputer protecting controller of lightning protection, comprise power circuit and microcomputer main circuit, power circuit provides working power for microcomputer main circuit, also be coupled with lightning protection circuit between described power circuit and microcomputer main circuit, described lightning protection circuit comprises lightning circuit and filter circuit;
Described lightning circuit in order to absorb thunder and lightning interference signal, and exports the signal of band harmonic wave;
Described filter circuit is coupled to lightning circuit, in order to filtering high order harmonic component and the power supply of stable output.
Preferably, described lightning circuit comprises two lightning arresters, four suction ripple resistance and transient voltage suppressor, the two ends of the first lightning arrester are in parallel with the two ends of the second lightning arrester respectively by suction ripple resistance, and the two ends of the second lightning arrester are in parallel with the two ends of transient voltage suppressor by inhaling ripple resistance again.
Preferably, described filter circuit comprises two inductance and four electric capacity, and two inductance are series at the two ends of transient voltage suppressor respectively, and capacity earth is passed through at the two ends of described each inductance.
Preferably, described lightning protection circuit is provided with two, and it is parallel with one another that the first lightning protection circuit and the second lightning protection circuit pass through switch.
Compared with prior art; the beneficial effects of the utility model are: by arranging lightning protection circuit between power circuit and microcomputer main circuit; and lightning protection circuit is protected equipment by lightning circuit and filter circuit; under lightning circuit realizes thunder and lightning situation; voltage instability and electromagnetic field change make circuit working unstable; the shield effectiveness to thunder and lightning is realized by lightning circuit; by filter circuit, filtering is carried out to high order harmonic component simultaneously; and the voltage stabilization in circuit is exported, avoid main circuit to burn.
Accompanying drawing explanation
Fig. 1 is the structural representation of the microcomputer protecting controller embodiment of the utility model lightning protection;
Fig. 2 is the lightning protection circuit figure of the microcomputer protecting controller embodiment of the utility model lightning protection;
Fig. 3 is the lightning protection circuit of the microcomputer protecting controller embodiment two of the utility model lightning protection.
In figure 1, power circuit; 2, microcomputer main circuit; 3, lightning protection circuit; 31, lightning circuit; 32, filter circuit; TVS, transient voltage suppressor; R1-R4, suction ripple resistance; BL1-BL2, lightning arrester; L1-L2, inductance; C1-C4, electric capacity; K1-K2, switch.
Embodiment
Referring to figs. 1 through Fig. 3, the microcomputer protecting controller embodiment of the utility model lightning protection is described further.
By research microcomputer protecting device external power loop feature, to lightning surge intrusion transformer and distribution station, and lightning wave can have influence on the normal work of microcomputer protecting device circuit.Sometimes the components and parts of main circuit board even can be made to burn.Enter into the approach of microcomputer protecting device main circuit for lightning wave and analyse in depth the main circuit of microcomputer protecting device, this lightning protection circuit 3 of employing this programme can well play the elimination to lightning wave.
As shown in Figure 1, a kind of microcomputer protecting controller of lightning protection, comprises power circuit 1 and microcomputer main circuit 2, and power circuit 1 provides working power for microcomputer main circuit 2, and power circuit 1 and microcomputer main circuit 2 are prior art, do not repeat them here.Also be coupled with lightning protection circuit 3 between described power circuit 1 and microcomputer main circuit 2, described lightning protection circuit 3 comprises lightning circuit 31 and filter circuit 32; Described lightning circuit 31 in order to absorb thunder and lightning interference signal, and exports the signal of band harmonic wave; Described filter circuit 32 is coupled to lightning circuit 31, in order to filtering high order harmonic component and the power supply of stable output.Lightning wave or surge voltage, to the type of action difference of the interference of main circuit, can be divided into differential mode interference and common mode disturbances.The existing differential mode interference of interference affecting microcomputer protecting device has common mode disturbances again, and often both occur simultaneously, and therefore proterctive equipment must suppress differential mode interference and common mode disturbances simultaneously.
Apply this scheme, can effectively avoid lightning wave to microcomputer protecting device, particularly the impact of the main circuit of microcomputer protecting device, prevent microcomputer protecting device from suffering broken by lightning.
As shown in Figure 2, lightning circuit 31 comprises two lightning arresters, four suction ripple resistance R1-R4 and transient voltage suppressor TVS, the two ends of the first lightning arrester BL1 are in parallel with the two ends of the second lightning arrester BL2 respectively by suction ripple resistance R, and the two ends of the second lightning arrester BL2 are in parallel with the two ends of transient voltage suppressor TVS by inhaling ripple resistance R again.Filter circuit 32 comprises two inductance L 1-L2 and four electric capacity C1-C4, and two inductance are series at the two ends of transient voltage suppressor TVS respectively, and the two ends of described each inductance are by electric capacity C ground connection.Adopt multiple lightning arrester and inhale ripple resistance R, and use transient voltage suppressor TVS to carry out burning voltage, this mode completes the suppression of powerful lightning wave by classification or weakens, adopt highly reliable high performance capacitors to carry out filtering, suppress common and different mode electromagnetic interference and instantaneous spine, noise jamming.
As shown in Figure 3, lightning protection circuit 3 is provided with two, and it is parallel with one another that the first lightning protection circuit 3 and the second lightning protection circuit 3 pass through K switch 1-K2.By being closed by switch, realize multistage lightning protection effect.Take multistage lightning protection circuit 3; inlet wire entrance front end is provided with multiple lightning circuit 31, with the major part of bleed off surge energy, then by the more low-energy surge voltage interference of filter circuit 32 filtering; the microcomputer main circuit 2 connected below is protected, surge voltage is clamped down on safe voltage.The moment that surge voltage protection occurs in overvoltage, in protected area, between all metal partss, realize equipotential.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the microcomputer protecting controller of a lightning protection, comprise power circuit and microcomputer main circuit, power circuit provides working power for microcomputer main circuit, it is characterized in that: be also coupled with lightning protection circuit between described power circuit and microcomputer main circuit, described lightning protection circuit comprises lightning circuit and filter circuit;
Described lightning circuit in order to absorb thunder and lightning interference signal, and exports the signal of band harmonic wave;
Described filter circuit is coupled to lightning circuit, in order to filtering high order harmonic component and the power supply of stable output.
2. the microcomputer protecting controller of lightning protection according to claim 1; it is characterized in that: described lightning circuit comprises two lightning arresters, four suction ripple resistance and transient voltage suppressor; the two ends of the first lightning arrester are in parallel with the two ends of the second lightning arrester respectively by suction ripple resistance, and the two ends of the second lightning arrester are in parallel with the two ends of transient voltage suppressor by inhaling ripple resistance again.
3. the microcomputer protecting controller of lightning protection according to claim 2; it is characterized in that: described filter circuit comprises two inductance and four electric capacity; two inductance are series at the two ends of transient voltage suppressor respectively, and capacity earth is passed through at the two ends of described each inductance.
4. the microcomputer protecting controller of lightning protection according to claim 3, is characterized in that: described lightning protection circuit is provided with two, and it is parallel with one another that the first lightning protection circuit and the second lightning protection circuit pass through switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526740.9U CN204732868U (en) | 2015-07-18 | 2015-07-18 | The microcomputer protecting controller of lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526740.9U CN204732868U (en) | 2015-07-18 | 2015-07-18 | The microcomputer protecting controller of lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204732868U true CN204732868U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520526740.9U Expired - Fee Related CN204732868U (en) | 2015-07-18 | 2015-07-18 | The microcomputer protecting controller of lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204732868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106484023A (en) * | 2016-11-14 | 2017-03-08 | 成都九五测控科技有限公司 | A kind of lightning protection microcomputer protecting controller |
| CN106532623A (en) * | 2016-11-14 | 2017-03-22 | 成都九五测控科技有限公司 | Microcomputer circuit protective measurement control apparatus |
-
2015
- 2015-07-18 CN CN201520526740.9U patent/CN204732868U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106484023A (en) * | 2016-11-14 | 2017-03-08 | 成都九五测控科技有限公司 | A kind of lightning protection microcomputer protecting controller |
| CN106532623A (en) * | 2016-11-14 | 2017-03-22 | 成都九五测控科技有限公司 | Microcomputer circuit protective measurement control apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20190718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |