CN201594732U - Lightning-protection anti-interference filter - Google Patents
Lightning-protection anti-interference filter Download PDFInfo
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- CN201594732U CN201594732U CN2009202459280U CN200920245928U CN201594732U CN 201594732 U CN201594732 U CN 201594732U CN 2009202459280 U CN2009202459280 U CN 2009202459280U CN 200920245928 U CN200920245928 U CN 200920245928U CN 201594732 U CN201594732 U CN 201594732U
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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
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Abstract
The utility model discloses a lightning-protection anti-interference filter comprising a lightning-protection module and a filter module that are respectively connected in power supply line between an alternating current network and electronic equipment, wherein the lightning-protection module is connected with one side of the alternating current network; the filter module is connected with one side of the electronic equipment; the lightning-protection module comprises three piezoresistances, an overload protector L01 connected in series on a fire wire, as well as a temperature fuse L02 and a resistor R0 connected in series with each other; after connected in series with each other, the temperature fuse L02 and the resistor R0 are connected in parallel between the fire wire and a zero wire; the input terminal of the temperature fuse L02 is connected with an output terminal of the overload protector L01 and the output terminal of the overload protector L01 is connected with the zero wire after going through the resistor R0; and the filter module is a power supply filter which is connected between the fire wire and the zero wire. The lightning-protection anti-interference filter has reasonable design, convenient wiring and good use effect, does not play roles in the situation that the power supply line of the electronic equipment works normally and does not generate any bad effects on the power supply line of the electronic equipment, and can effectively play roles in flow discharging and voltage limitation when the thunder invading wave comes.
Description
Technical field
The utility model belongs to electricization equipment lightning-protection engineering field, especially relates to a kind of lightning protection anti-interference filter.
Background technology
Along with the extensive use of electricization equipment, country constantly strengthens electrical network sets up engineering, enlarges energy storage to satisfy the actual demand of domestic power consumption.But because the dielectric strength of electronic equipment is low, the tolerance of overvoltage and overcurrent is poor, and is easy to cause work malfunctioning or permanent with bad after being subjected to thunder disaster.Therefore electronic equipment anti-lightning protected is one of requisite measure of assurance electronic equipments safety reliability service.In the actual application; for the normal operation of giving electronic equipment provides reliable guarantee; suppress the thunder and lightning transient overload current additional effectively to the instantaneous differential pressure of electronic equipment; also for can play the surge current inhibitory action better, must the anti-lightning protected functional module of electricization equipment be further improved simultaneously.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of lightning protection anti-interference filter is provided, it is reasonable in design, easy-to-connect and result of use are good, inoperative and can not produce any harmful effect under the power electronic equipment circuit normal operation to the supply line of electronic equipment, and thunder and lightning is invaded when ripple arrives and can effectively be brought into play earial drainage and pressure limiting effect.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of lightning protection anti-interference filter, it is characterized in that: comprise the lightning-protection module and the filtration module that are connected on respectively in AC network and the electric room supply line, lightning-protection module is connected on AC network one side, and filtration module is connected on electronic equipment one side; Thermal Cutoffs LO2 and resistance R 0 that described lightning-protection module comprises three piezo-resistances, is serially connected in the overload protective device LO1 on the live wire L and is connected in series mutually, described three piezo-resistances be respectively be attempted by between live wire L and the zero line N, between live wire L and the ground wire G and R1, R2 and R3 between zero line N and the ground wire G, after being connected in series mutually, Thermal Cutoffs LO2 and resistance R 0 be attempted by between live wire L and the zero line N, the output of the input of Thermal Cutoffs LO2 and overload protective device LO1 joins and all is connected on the live wire L, and the output of Thermal Cutoffs LO2 is connecting to neutral line N after resistance R 0; Described filtration module is the power-supply filter that is connected between live wire L and the zero line N.
Described lightning-protection module also comprise the LED that is attempted by on the Thermal Cutoffs LO2 with described LED mutually and the rectifying tube D that connects.
Described power-supply filter comprise the inductance L x1 that is serially connected in respectively on the live wire L and inductance L y1, respectively be serially connected in inductance L x2 on the zero line N and inductance L y2, respectively be attempted by capacitor C x1 and Cx2 between live wire L and the zero line N, be attempted by resistance R 4 and the capacitor C y1 and the Cy2 of serial connection mutually on the capacitor C x2, described capacitor C y1 be attempted by capacitor C x2 two ends, the link ground connection of capacitor C y1 and Cy2 after Cy2 is connected in series mutually; The end of inductance L x1 joins with the end of inductance L x2 behind capacitor C x1, and the other end of inductance L x1 joins with the other end of inductance L x2 behind capacitor C x2.
Described lightning-protection module is connected in the supply socket of AC network one side, and filtration module is connected on the apparatus socket of electronic equipment one side, is connected by AC power cord between described supply socket and described apparatus socket.
The utility model compared with prior art has the following advantages:
1, simple in structure, easy-to-connect, cost is low and it is easy and simple to handle to use.
2, result of use is good, and under the circuit normal operation, the utility model is inoperative, and can not produce any harmful effect to the supply line of electronic equipment; When thunder and lightning was invaded the ripple arrival, the utility model can effectively be brought into play earial drainage and pressure limiting effect, and simultaneously, the utility model self can not be damaged yet in suppressing thunder and lightning intrusion wave process.
3, reliable working performance has surge and suppresses and the thunder and lightning drainage function, and the utility model is divided into lightning protection and two modules of filtering, and wherein the differential loss of filtration module is between 0.15MHz～30MHz, and common mode inhibition is not less than 50dB; Can the release electric current of 10KA of lightning protection part, standard operation voltage 620VDC.Because the AC power cord that main channel is an electronic equipment that thunder and lightning endangers electronic equipment: on the one hand, be struck by lightning near the outdoor electricity distribution circuit or when attacking directly on circuit, can produce overvoltage and overcurrent ripple road along the line and import into indoorly, invade electronic equipment by power line; On the other hand, be struck by lightning and when building lightning rod or lighting proof strip, can directly on AC power cord, induce overvoltage and overcurrent ripple intrusion electronic equipment, thereby avoid thunder and lightning in order to ensure electronic equipment and invade the ripple damage, must on electronic equipment front end AC line, install lightning-protection module, enter electronic equipment to stop thunder and lightning to invade ripple.Therefore, the utility model is exactly at the supply socket port lightning protection device to be installed, and the electronic equipment port is installed filtration module, and adopts shielding conductor that lightning protection and two modules of filtering are organically combined.Filtration module is a power-supply filter, it utilizes logical straight and inductance of resistance and the electric capacity handed over of electric capacity, inductance that the electromagnetic interference in the circuit is suppressed to work, the performance of its filter all has the good restraining effect to differential mode conducted interference between line-line and the interference of the common mode radiation between line-ground, is one of indispensable elements such as various instruments, instrument and electronic equipment.
4, practical value and economic worth height, the utility model organically combines lightning protection function and filter function, for the electronic equipment operate as normal provides safe and reliable guarantee, be after a trend of filtering production development, have broad application prospects.
In sum, the utility model is reasonable in design, easy-to-connect and result of use are good, under the power electronic equipment circuit normal operation, the utility model is inoperative and can not produce any harmful effect to the supply line of electronic equipment, and thunder and lightning invade ripple when arriving the utility model can effectively bring into play earial drainage and pressure limiting effect, thereby the utility model can suppress the thunder and lightning transient overload current additional to the instantaneous differential pressure of electronic equipment effectively, simultaneously also can play the surge current inhibitory action better, for the normal operation of electronic equipment provides reliable guarantee.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an operation principle block diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model lightning-protection module.
Fig. 3 is the circuit theory diagrams of the utility model filtration module.
Description of reference numerals:
The 1-AC network; The 2-electronic equipment; The 3-lightning-protection module;
The 4-filtration module.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises lightning-protection module 3 and the filtration module 4 that is connected on respectively in AC network 1 and 2 supply lines of electronic equipment, and lightning-protection module 3 is connected on AC network 1 one sides, and filtration module 4 is connected on electronic equipment 2 one sides.Thermal Cutoffs LO2 and resistance R 0 that described lightning-protection module 3 comprises three piezo-resistances, is serially connected in the overload protective device LO1 on the live wire L and is connected in series mutually; described three piezo-resistances be respectively be attempted by between live wire L and the zero line N, between live wire L and the ground wire G and R1, R2 and R3 between zero line N and the ground wire G; after being connected in series mutually, Thermal Cutoffs LO2 and resistance R 0 be attempted by between live wire L and the zero line N; the output of the input of Thermal Cutoffs LO2 and overload protective device LO1 joins and all is connected on the live wire L, and the output of Thermal Cutoffs LO2 is connecting to neutral line N after resistance R 0.Described filtration module 4 is for being connected on the power-supply filter between live wire L and the zero line N.
In the present embodiment, described lightning-protection module 3 also comprise the LED that is attempted by on the Thermal Cutoffs LO2 with described LED mutually and the rectifying tube D that connects.Described power-supply filter comprise the inductance L x1 that is serially connected in respectively on the live wire L and inductance L y1, respectively be serially connected in inductance L x2 on the zero line N and inductance L y2, respectively be attempted by capacitor C x1 and Cx2 between live wire L and the zero line N, be attempted by resistance R 4 and the capacitor C y1 and the Cy2 of serial connection mutually on the capacitor C x2, described capacitor C y1 be attempted by capacitor C x2 two ends, the link ground connection of capacitor C y1 and Cy2 after Cy2 is connected in series mutually; The end of inductance L x1 joins with the end of inductance L x2 behind capacitor C x1, and the other end of inductance L x1 joins with the other end of inductance L x2 behind capacitor C x2.
Described lightning-protection module 3 is connected in the supply socket of AC network 1 one sides, and described filtration module 4 is connected on the apparatus socket of electronic equipment 2 one sides, is connected by AC power cord between described supply socket and described apparatus socket.
During actual processing and fabricating, requirement according to China 220/380V rated voltage and IEEEC62.41, and consider factor such as voltage ripple of power network, select the piezo-resistance of the origination action instantaneous voltage of certain value, its discharge capacity for tolerance 8/20 μ s, 10kA rush of current once.When surge current intrusion circuit, at first overload protective device LO1 can recognize whether surpass its rated voltage in the circuit, if invade ripple greater than rated value, overload protective device LO1 then can upspring automatically, open circuit; At this moment, instantaneous electromotive force can occur between live wire L and the zero line N, electric current is bright through danger signal indicator light behind the LED; In order to prevent that current reversal from causing LED to destroy, an additional rectifying tube D contains this phenomenon in the circuit, and meanwhile, the open circuit that can fuse of the resistance wire in the excessive circuit of electric current is further protected the power devices circuit.Secondly, three piezo-resistances that are positioned at circuit front-end can be released surge current from differential mode and common mode dual mode, and operating current is 10KA, and maximum can reach 15KA.Thereby effectively ensured the stabilization signal source of terminal electronic equipment by lightning-protection module 3.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (4)
1. lightning protection anti-interference filter, it is characterized in that: comprise being connected on lightning-protection module (3) in the supply line and filtration module (4) between AC network (1) and electronic equipment (2) respectively, lightning-protection module (3) is connected on AC network (1) one side, and filtration module (4) is connected on electronic equipment (2) one sides; Described lightning-protection module (3) comprises three piezo-resistances, the Thermal Cutoffs LO2 and the resistance R 0 that are serially connected in the overload protective device LO1 on the live wire L and are connected in series mutually, described three piezo-resistances are respectively and are attempted by between live wire L and the zero line N, between live wire L and the ground wire G and the R1 between zero line N and the ground wire G, R2 and R3, after being connected in series mutually, Thermal Cutoffs LO2 and resistance R 0 be attempted by between live wire L and the zero line N, the output of the input of Thermal Cutoffs LO2 and overload protective device LO1 joins and all is connected on the live wire L, and the output of Thermal Cutoffs LO2 is connecting to neutral line N after resistance R 0; Described filtration module (4) is for being connected on the power-supply filter between live wire L and the zero line N.
2. according to the described lightning protection anti-interference filter of claim 1, it is characterized in that: described lightning-protection module (3) also comprise the LED that is attempted by on the Temperature protection LO2 with described LED mutually and the rectifying tube D that connects.
3. according to claim 1 or 2 described lightning protection anti-interference filters, it is characterized in that: described power-supply filter comprise the inductance L x1 that is serially connected in respectively on the live wire L and inductance L y1, respectively be serially connected in inductance L x2 on the zero line N and inductance L y2, respectively be attempted by capacitor C x1 and Cx2 between live wire L and the zero line N, be attempted by resistance R 4 and the capacitor C y1 and the Cy2 of serial connection mutually on the capacitor C x2, described capacitor C y1 be attempted by capacitor C x2 two ends, the link ground connection of capacitor C y1 and Cy2 after Cy2 is connected in series mutually; The end of inductance L x1 joins with the end of inductance L x2 behind capacitor C x1, and the other end of inductance L x1 joins with the other end of inductance L x2 behind capacitor C x2.
4. according to claim 1 or 2 described lightning protection anti-interference filters, it is characterized in that: described lightning-protection module (3) is connected in the supply socket of AC network (1) one side, filtration module (4) is connected on the apparatus socket of electronic equipment (2) one sides, is connected by AC power cord between described supply socket and described apparatus socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202459280U CN201594732U (en) | 2009-12-22 | 2009-12-22 | Lightning-protection anti-interference filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202459280U CN201594732U (en) | 2009-12-22 | 2009-12-22 | Lightning-protection anti-interference filter |
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| Publication Number | Publication Date |
|---|---|
| CN201594732U true CN201594732U (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202459280U Expired - Fee Related CN201594732U (en) | 2009-12-22 | 2009-12-22 | Lightning-protection anti-interference filter |
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| CN (1) | CN201594732U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456996A (en) * | 2011-04-12 | 2012-05-16 | 厦门赛尔特电子有限公司 | Lightning-protecting module for lightning-protecting socket |
| CN102916413A (en) * | 2012-10-25 | 2013-02-06 | 深圳市雷博斯科技有限公司 | Lightning frequency impedance control unit |
| CN102916411A (en) * | 2011-07-06 | 2013-02-06 | 立德电子股份有限公司 | Surge current suppression circuit |
| CN103108455A (en) * | 2013-01-16 | 2013-05-15 | 佛山市华全电气照明有限公司 | Drive and control circuit for preventing high-voltage thunder strike damage to light-emitting diode (LED) light source |
| CN106961098A (en) * | 2016-01-08 | 2017-07-18 | 西门子公司 | A kind of surge protection circuit and surge protection method |
| CN109244720A (en) * | 2018-09-26 | 2019-01-18 | 吉林省泰华电子股份有限公司 | A kind of lightning protection red and black isolated from power filtering insert row |
| CN109560782A (en) * | 2018-11-22 | 2019-04-02 | 重庆大及电子科技有限公司 | A kind of lightning protection filtering unit |
-
2009
- 2009-12-22 CN CN2009202459280U patent/CN201594732U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456996A (en) * | 2011-04-12 | 2012-05-16 | 厦门赛尔特电子有限公司 | Lightning-protecting module for lightning-protecting socket |
| CN102916411A (en) * | 2011-07-06 | 2013-02-06 | 立德电子股份有限公司 | Surge current suppression circuit |
| CN102916413A (en) * | 2012-10-25 | 2013-02-06 | 深圳市雷博斯科技有限公司 | Lightning frequency impedance control unit |
| CN103108455A (en) * | 2013-01-16 | 2013-05-15 | 佛山市华全电气照明有限公司 | Drive and control circuit for preventing high-voltage thunder strike damage to light-emitting diode (LED) light source |
| CN103108455B (en) * | 2013-01-16 | 2016-09-14 | 佛山市华全电气照明有限公司 | A kind of driving control circuit preventing LED light source high pressure broken by lightning |
| CN106961098A (en) * | 2016-01-08 | 2017-07-18 | 西门子公司 | A kind of surge protection circuit and surge protection method |
| CN108463933A (en) * | 2016-01-08 | 2018-08-28 | 西门子股份公司 | A kind of surge protection circuit and surge protection method |
| CN108463933B (en) * | 2016-01-08 | 2020-08-04 | 西门子股份公司 | Surge protection circuit and surge protection method |
| US11025053B2 (en) | 2016-01-08 | 2021-06-01 | Siemens Aktiengesellschaft | Surge protection circuit and surge protection method |
| CN109244720A (en) * | 2018-09-26 | 2019-01-18 | 吉林省泰华电子股份有限公司 | A kind of lightning protection red and black isolated from power filtering insert row |
| CN109560782A (en) * | 2018-11-22 | 2019-04-02 | 重庆大及电子科技有限公司 | A kind of lightning protection filtering unit |
| CN109560782B (en) * | 2018-11-22 | 2024-02-23 | 重庆大及电子科技有限公司 | Lightning protection filtering component |
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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: 20100929 Termination date: 20141222 |
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| EXPY | Termination of patent right or utility model |