CN2316757Y - Lightning protection converter - Google Patents
Lightning protection converter Download PDFInfo
- Publication number
- CN2316757Y CN2316757Y CN 97243318 CN97243318U CN2316757Y CN 2316757 Y CN2316757 Y CN 2316757Y CN 97243318 CN97243318 CN 97243318 CN 97243318 U CN97243318 U CN 97243318U CN 2316757 Y CN2316757 Y CN 2316757Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- lightning protection
- stage
- ceramic
- resistance
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a lightning protection converter which is a power converter with good lightning protection performance. The utility model is composed of a protection circuit and a conversion fraction, wherein, in the protection circuit, the output end of the short-circuit protective device is connected with a first stage lightning protection circuit, the output end of the first stage lightning protection circuit is connected with a power switch, an indicating circuit, and a self-checking circuit, the input end of a second stage lightning protection and filter circuit is connected with the power switch and the indicating circuit, and the output end of the second stage lightning protection and filter circuit is directly connected with the converter. In the first stage lightning protection circuit, a varistor FV< 1 > is connected in series with a ceramic second stage discharge tube V<1>, and the varistor FV< 1 > and the ceramic second stage discharge tube V<1> are connected in parallel between a power supply phase wire and a central wire. The current pulse limiter PL of the second stage lightning protection and filter circuit is connected in series with a main circuit.
Description
The utility model is a kind of power supply changeover device with good anti-lightning strike performance, belongs to the protection technical field of electric appliances.
In today that high-tech product, Computer information network develop rapidly, even building has been adorned lightning rod, the destruction that the electronic equipment of indoor costliness still usually is struck by lightning, we have investigated the computer network of twenties tame banks in certain scope, wherein about 2/3rds suffer that all thunderbolt in various degree destroys, we are referred to as indirect lightning strike these damage to crops caused by thunder, this indirect lightning strike does not resemble strong flash of light and thunderous the direct stroke, usually be quietly to take place, but its harm face is very wide, accounts for more than 80% of total damage to crops caused by thunder accident.Up to the present, according to the report of many relevant shocking preventing technologies, but all fundamentally do not solve the practical problem of lightning protection.
Goal of the invention of the present utility model just provides a kind of good lightning protection effect that has, the lightning protection transducer that particularly has anti-induction thunderbolt function.
Lightning protection transducer of the present utility model mainly by short-circuit protector, first order lightning protection circuit, mains switch and indicating circuit, second level lightning protection and filter circuit, form by self-checking circuit and transducer.In protective circuit; the output termination first order lightning protection circuit of short-circuit protector; the output termination mains switch of first order lightning protection circuit and indicating circuit self-checking circuit, the input termination mains switch and the indicating circuit of second level lightning protection and filter circuit, its output directly switches through parallel operation.Piezo-resistance FV in the first order lightning protection circuit
1With ceramic two utmost point discharge tube V
1Be attempted by between power supply phase line and the center line piezo-resistance FV after being in series
2Be attempted by between phase line and the ground wire.Current pulse limiter PL is serially connected in the main circuit in second level lightning protection and the filter circuit, piezo-resistance FV
3Be attempted by between power supply phase line and the center line.The output of self-checking circuit is connected on ceramic two utmost point discharge tube V
1Two ends.
Wherein short-circuit protector is fuse FU; First order lightning protection circuit comprises piezo-resistance FV
1, FV
2, ceramic two utmost point discharge tube V
1Mains switch and indicating circuit comprise switch Q, light-emitting diode V
2With current-limiting resistance R
1Second level lightning protection and filter circuit comprise filter capacitor C
1, C
2, C
3, resistance R
2, current pulse limiter PL, piezo-resistance FV
3Transducer is two and three socket MS; Self-checking circuit is electronic converter U.Its operation principle is: normal electric current flows into until transducer MS is not subjected to any interference from short-circuit protector FU.Fashionable when high pressure thunderbolt stream of pulses, the work of first order lightning protection circuit is put into ground with high-voltage pulse current Vent, and the piezo-resistance recurrence effect of overvoltage protection for the second time in second level lightning protection and the filter circuit guarantees that high pressure thunderbolt pulse can not enter transducer.When the thunderbolt pulse of big electric current enters, by the current pulse limiter PL in second level lightning protection and the filter circuit it is limited, guarantee that heavy current pulse does not flow into transducer.
Advantage of the present utility model is
1. design two-stage lightning protection circuit and one-level high-frequency filter circuit, not only had good anti-lightning strike effect, and reduced the output residual voltage, increased the ability of anti-electromagnetic interference.
2. adopted ceramic two utmost point discharge tubes, compared, not only reduced cost, simplified circuit with common employing pottery three utmost point discharge tubes, and better effects if.
3. design the self-checking circuit of lightning-arrest pipe, can guarantee that this device does not operate in malfunction, thereby improved the reliability of using.
4. easy to use.The lightning protection transducer is used for tackling a kind of protective device of indirect lightning strike exactly; Can be used for computer center, communication equipment station, laboratory, office, family etc.Protection computer, facsimile machine, communication equipment, television set, stereo set etc. exempt from the destruction of the indirect lightning strike of being invaded by power line, can avoid the harm to high-grade electronic equipment of overvoltage surge and Electromagnetic Interference simultaneously.This lightning protection device is flexible and convenient to use, has saved the trouble that wiring is installed.The attaching plug that needs only during use the lightning protection transducer inserts indoor single-phase three utmost point supply sockets, the attaching plug of power consumption equipment is inserted the corresponding jack of transducer again, can be protected.The jack pattern of lightning protection transducer has adopted two utmost points commonly used, three pole sockets that meet GB and IEC standard simultaneously, is widely used in the needs of domestic and imported computer, household electrical appliance.
Fig. 1 is a structured flowchart of the present utility model.Comprising short-circuit protector (1), first order lightning protection circuit (2), mains switch indicating circuit (3), second level lightning protection and filter circuit (4), adapter (5), self-checking circuit (6).
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment of the present utility model is as follows:
FU is a fuse in the short-circuit protection circuit, generally can select the small-sized tubular fuse for use as short-circuit protection; In the first order lightning protection circuit, ceramic two utmost point discharge tube V
1Adopting conveyance capacity is the specification of 5～10KA, piezo-resistance FV
1, FV
2, FV
3Select " MYL1 " type piezo-resistance for use with equal conveyance capacity; Long-term durability luminous diode is adopted in the power supply indication.In second level lightning protection and the filter circuit, current pulse limiter PL is the high-frequency inductor coil, it has played amplitude limit and delayed action to lightning impulse current, simultaneously frequency electromagnetic waves is presented bigger restriction, and the line footpath of its coil is decided by the use electric current of electrical appliance.Capacitor C
1, C
2, C
3Be high-frequency filter capacitor, select for use high withstand voltage high frequency capacitance to get final product.Transducer is formed for several single-phase sockets.Self-checking circuit U is an electronic converter, produces the two ends that high-voltage pulse adds to ceramic two utmost point discharge tubes, by observing V
1Whether flash of light judges whether lightning protection pottery two utmost point discharge tubes are good.Just can realize the utility model according to the above.
Claims (4)
1. lightning protection transducer; form by protective circuit and converter section branch; it is characterized in that in protective circuit; the output termination first order lightning protection circuit (2) of short-circuit protector (1); the output termination mains switch of first order lightning protection circuit (2) and indicating circuit (3) and self-checking circuit (6); the input termination mains switch of second level lightning protection and filter circuit (4) and indicating circuit (3), its output directly switches through parallel operation (5).
2. lightning protection transducer according to claim 1 is characterized in that piezo-resistance FV in the first order lightning protection circuit (2)
1With ceramic two utmost point discharge tube V
1Be attempted by between power supply phase line and the center line piezo-resistance FV after being in series
2Be attempted by between phase line and the ground wire.
3. lightning protection transducer according to claim 1 and 2 is characterized in that current pulse limiter PL is serially connected in the main circuit piezo-resistance FV in second level lightning protection and the filter circuit (4)
3Be attempted by between power supply phase line and the center line.
4. lightning protection transducer according to claim 1 and 2 is characterized in that the output of self-checking circuit (6) is connected on ceramic two utmost point discharge tube V
1Two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243318 CN2316757Y (en) | 1997-12-26 | 1997-12-26 | Lightning protection converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243318 CN2316757Y (en) | 1997-12-26 | 1997-12-26 | Lightning protection converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2316757Y true CN2316757Y (en) | 1999-04-28 |
Family
ID=33952332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97243318 Expired - Fee Related CN2316757Y (en) | 1997-12-26 | 1997-12-26 | Lightning protection converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2316757Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342610C (en) * | 2000-11-14 | 2007-10-10 | 周义雄 | Circuit for displaying exception of three-phase shock wave absorber |
| CN101170257B (en) * | 2007-11-30 | 2010-08-11 | 上海电科电器科技有限公司 | Backup protection unit for surge protector |
| CN103390889A (en) * | 2012-05-10 | 2013-11-13 | 深圳远征技术有限公司 | Lightning protection device |
-
1997
- 1997-12-26 CN CN 97243318 patent/CN2316757Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342610C (en) * | 2000-11-14 | 2007-10-10 | 周义雄 | Circuit for displaying exception of three-phase shock wave absorber |
| CN101170257B (en) * | 2007-11-30 | 2010-08-11 | 上海电科电器科技有限公司 | Backup protection unit for surge protector |
| CN103390889A (en) * | 2012-05-10 | 2013-11-13 | 深圳远征技术有限公司 | Lightning protection device |
| WO2013166977A1 (en) * | 2012-05-10 | 2013-11-14 | 深圳远征技术有限公司 | Lightning protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101965670B (en) | Electrical interface protecting apparatus | |
| CN104485654A (en) | Novel lightning protection circuit for intelligent ammeter | |
| CN201001035Y (en) | RF lightning protection device | |
| CN201590660U (en) | 220V alternating current power lightning protection protector | |
| CN2316757Y (en) | Lightning protection converter | |
| CN100414803C (en) | Lightening arresting method and device for Ethernet port | |
| CN2836019Y (en) | Circuit of electrical measuring instrument for power supply protection | |
| CN213782860U (en) | Lightning protection module convenient to use integrated with circuit breaker | |
| CN110011290B (en) | Ethernet interface anti-surge circuit | |
| CN210518945U (en) | Lightning-proof and surge-proof LED driving circuit | |
| CN2405344Y (en) | Lightning protection and anti-interference telephone set socket | |
| CN2199611Y (en) | Thunder preventing socket | |
| CN2261682Y (en) | Overvoltage and overcurrent protector for telephone | |
| CN211151532U (en) | Portable data communication station | |
| CN2348513Y (en) | Shockproof power supply protector for microelectronic equipment | |
| CN201438602U (en) | Broadband radio frequency lighting arrester | |
| CN2604019Y (en) | Transient state attack voltage suppressor | |
| CN2439737Y (en) | Device for preventing house keeping electric appliance from being struck by lightning | |
| CN209823411U (en) | Signal protection device applied to signal centralized monitoring system | |
| CN2515854Y (en) | Overvoltage protector | |
| CN2588637Y (en) | Lightning protector for electric equipment | |
| CN220510775U (en) | Surge protector with backup protection function | |
| CN202817749U (en) | Grounding-free single-phase power supply lightning protection module | |
| CN2607689Y (en) | Multi-user safety distributing box | |
| CN218415816U (en) | Special combination formula surge protector of intelligent monitoring photovoltaic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |