CN101630837A - Ground-free lightning arrester - Google Patents
Ground-free lightning arrester Download PDFInfo
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- CN101630837A CN101630837A CN200910040868A CN200910040868A CN101630837A CN 101630837 A CN101630837 A CN 101630837A CN 200910040868 A CN200910040868 A CN 200910040868A CN 200910040868 A CN200910040868 A CN 200910040868A CN 101630837 A CN101630837 A CN 101630837A
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Abstract
The invention discloses a ground-free lightning arrester comprising three high-frequency transformers B1, B2 and B3, wherein the coils of the three high-frequency transformers are wound by adopting a high-voltage wire material; one end of a primary coil of the high-frequency transformer B1 is connected with an inner core of a signal wire at the input end, the other end of the primary coil of the high-frequency transformer B1 is connected with one end of a primary coil of the high-frequency transformer B2, one end of a secondary coil of the high-frequency transformer B1 is grounded after being connected with a shielding layer of the signal wire at the input end, the other end of the secondary coil of the high-frequency transformer B1 is connected with the other end of the primary coil of the high-frequency transformer B2, both ends of a secondary coil of the high-frequency transformer B2 are respectively connected with one end of a primary coil of the high-frequency transformer B3 and one end of a secondary coil of the high-frequency transformer B3, one end of the secondary coil of the high-frequency transformer B3 is connected with an inner core of a signal wire at the output end, and the other end of the secondary coil of the high-frequency transformer B3 is grounded after being connected with a shielding layer of the signal wire at the output end. The invention has the advantages that the installation is free from the restriction of any environmental condition, isolated pressurization enables lightning pulse to be unable to enter the signal wire and the like.
Description
[technical field]
The present invention relates to a kind of ground-free lightning arrester.
[background technology]
At present, the thunder and lightning disaster is one of 10 kinds of natural calamities the most serious of the United Nations's announcement, also is one of present Chinese ten the Nature disasters.The direct economic loss that China brings because of the thunder calamity every year reaches hundred million yuan of 50-100.
So far; in the global range; the mankind have the lightning rod that the efficient apparatus of avoiding damage to crops caused by thunder is U.S. scientist Franklin invention before more than 250 year, and develop the lightning-arrest means such as lightning conducter, lighting proof strip, lightning conduction, faraday's cage shielding protection cover and various lightning arresters of coming out later on.
Yet, in today of science and microelectric technique fast development, be that the electronic information technology of core has been applied to all trades and professions with the microelectronic component, become the essential tool of human being's production, life.The information equipment has become the brain and the nerve of modernized society.Not only go into the lightning-arrest means of tradition on ground and can not exempt from damage to crops caused by thunder by protection information equipment and draw thunder, increased the chance of being damaged on the contrary.The thunder calamity has brought new serious threat for development of human society, economic construction and even national defense construction and people life property safety.Lightning-arrest both at home and abroad expert resists thunder and lightning this modernization and informationalized natural enemy seeking new lightning-arrest means.The innovation of the social lightning-protecting engineering that urgently waits in expectation.
Although now common people damage in order to avoid be subjected to thunderbolt not seeing TV, during without computer, knowing and will pull out the power supply of television set, computer and holding wire netting twine.But annual thunderstorm season China all has quite a lot of television set, computer, digital TV set-top box etc. damaged by thunder and lightning, directly and has indirectly caused many economic losses.Reduce these losses; Reduce common people particularly rural area and backwoodsman common people's the financial burden and the difficulty of maintenance household electrical appliances, very be necessary to carry out lightning protection work, the line that pulls out that mentions above also is a kind of method, and more positive method is for these equipment lightning protection device (lightning arrester) to be installed.
Problem is that traditional lightning arrester is installed all strict ground connection, does earth mat, and earth resistance very little (4 Ω are following), can play the lightning protection effect.In a lot of places, at our dwelling house (family), particularly vast rural area common people's family does not generally possess the grounding requirement that satisfies traditional lightning protection.The place of some arid, the resistivity of soil such as desert, rock stratum, stone mountain all may be very high, often does an earth mat that reaches 4 Ω earth resistances, needs cost units up to ten thousand even several ten thousand yuan.
In addition, traditional lightning protection all the time, impulse current is all arranged during thunder and lightning process lightning arrester, so will by variously release, ground connection etc., not only lightning protection effect is undesirable, and big impulse current also can cause secondary induction, can induce open-loop voltage and closed loop current at downlead (ground wire) circuit on every side, and electronic circuit around the downlead and device are caused the secondary injury.Not only go into the lightning-arrest means of tradition on ground and can not exempt from damage to crops caused by thunder by protection information equipment so draw thunder, increased the chance that is subjected to the thunder and lightning damage on the contrary.
[summary of the invention]
The present invention has overcome the deficiency of above-mentioned technology, provide a kind of simple in structure, install and not to be subjected to any environmental condition restriction, to isolate the withstand voltage no earth arrester that the holding wire lightening pulse can't access arrangement that makes.
For achieving the above object, the present invention has adopted following technical proposal:
A kind of ground-free lightning arrester, it is characterized in that, include three high frequency transformer B1, B2, B3, their coil adopts the coiling of high pressure wire rod, one end of high frequency transformer B1 primary coil is connected with the inner core of input end signal line, the other end of high frequency transformer B1 primary coil is connected with an end of high frequency transformer B2 primary coil, one end of high frequency transformer B1 secondary coil is connected back ground connection with the screen of input end signal line, the other end of high frequency transformer B1 secondary coil is connected with the other end of high frequency transformer B2 primary coil, the two ends of high frequency transformer B2 secondary coil are connected with an end of high frequency transformer B3 primary coil and an end of high frequency transformer B3 secondary coil respectively, one end of high frequency transformer B3 secondary coil is connected with the inner core of output end signal line, and the screen of the other end output end signal line of high frequency transformer B3 secondary coil connects back ground connection.
Described three high frequency transformer B1, B2, B3 form signal coupler.
Described high frequency transformer B2 is 1: 1 high frequency transformer, and it is isolated more than the withstand voltage 100KV.
The invention has the beneficial effects as follows: the high-frequency wideband coupling transformer of 1, using the coiling of high pressure wire rod, can normally carry useful signal, can intercept the thunder and lightning high-voltage pulse again, isolate more than the withstand voltage 100KV (1mS), making the lightening pulse on the holding wire can't access arrangement, be the great innovation and the breakthrough of lightning protection theory.2, of the present invention installing and using quite simply easily do not need traditional lightning protection to lay the additional input of earth mat, and financial burden has also alleviated a lot.Install and use and not limited by any environmental condition, help popularizing, really be reached for the effect of the general common people's lightning protection mitigation.
[description of drawings]
Fig. 1 is a schematic diagram of the present invention.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention:
We analyze thunder and lightning earlier is how to damage our equipment, as you know thunder and lightning directly (direct lightning strike) probability of getting on our equipment be considerably less, most thunders and lightnings all are by the circuit access arrangement on the equipment of being connected, so pull out power line, the holding wire of equipment, just can not get to equipment as the Enif.What household electrical appliances ratio is of family easier to suffer effects of lightning to take another look at us? being that television set and computer are the easiest is as you know broken by thunder and lightning, it is less that other household electrical appliances break, its reason is present television set, computer, except wanting power supply, also to be connected to the line TV network, the broadband network equisignal line, if our computer pulls out netting twine or with getting online without being tethered to a cable, television set pulls out antenna and sees video disc or see TV programme with domestic aerial, generally just is not easy to have been damaged by thunder and lightning.
We recall just clear, when also not developing cable TV in the past, in the age that we see TV with domestic aerial, computer does not also have the age of online, whether broken by thunder and lightning, our television set, computer are not do what strict ground connection yet that kind.Reach a conclusion by above analysis, television set, computer etc. suffer effects of lightning to be easily because: these household electrical appliances (electric equipment) work the time is also wanted holding wire (netting twine) except that power supply, be due to the common lightning induction of power line and holding wire.Can normally surf the Net if manage to allow the computer network circuit not receive computer, television set or set-top box do not connect antenna and can normally watch yet yet, our computer and television set just can have been damaged by thunder and lightning so easily.
In conjunction with above analysis and actual conditions, with special transmission coupled signal, the signal that only allows usefulness on transmission coupler passes through, harmful signal and high voltages such as thunder and lightning are isolated, reach computer, television set, unwanted signals such as the unaffected holding wire of normal signal is equal to normal connection, thunder and lightning and high voltage are equal to and do not connect holding wire.As long as isolate withstand voltage enough height (more than the 100KV), induction lightening just can not enter on the equipment, just is equal in not connecting these circuits equally, and the equipment of so just following has and do not have strict ground connection without any having concerned.
Referring to Fig. 1, the present invention is a kind of ground-free lightning arrester, includes three high frequency transformer B1, B2, B3, and their coil adopts the coiling of high pressure wire rod.One end of high frequency transformer B1 primary coil is connected with the inner core of input end signal line, the other end of high frequency transformer B1 primary coil is connected with an end of high frequency transformer B2 primary coil, one end of high frequency transformer B1 secondary coil is connected back ground connection with the screen of input end signal line, the other end of high frequency transformer B1 secondary coil is connected with the other end of high frequency transformer B2 primary coil, the two ends of high frequency transformer B2 secondary coil are connected with an end of high frequency transformer B3 primary coil and an end of high frequency transformer B3 secondary coil respectively, one end of high frequency transformer B3 secondary coil is connected with the inner core of output end signal line, and the screen of the other end output end signal line of high frequency transformer B3 secondary coil connects back ground connection.
Described three high frequency transformers are formed signal coupler, are wide-band couplers, in the time of can effectively transmitted signal, can keep apart the holding wire induction lightening.High frequency transformer B2 is 1: 1 high frequency transformer, and coil adopts the coiling of high pressure wire rod, isolates more than the withstand voltage 100KV (1mS), and high frequency transformer B1, B3 are impedance conversion and imbalance/balance conversion transformer, and coil adopts the coiling of high pressure wire rod.Key of the present invention is the high-frequency wideband coupling transformer with the coiling of high pressure wire rod, can normally carry useful signal, can intercept the thunder and lightning high-voltage pulse again, isolating more than the withstand voltage 100KV (1mS), is outside the thunder and lightning high-voltage pulse is isolated in, and makes the holding wire lightening pulse can't access arrangement, also without ground connection, so there is not impulse current during lightning protection, there is not the secondary induction, be the great innovation and the breakthrough of lightning protection theory.
Said 100KV is above to be isolated withstand voltagely, just cooperates the present principles explanation and reaches superior as far as possible isolation effect and lightning protection effect, and not representing is the withstand voltage selection of unique isolation of the present invention, does not also represent other withstand voltagely just to belong to interest field of the present invention.
Claims (3)
1, a kind of ground-free lightning arrester, it is characterized in that, include three high frequency transformer (B1, B2, B3), their coil adopts the coiling of high pressure wire rod, one end of high frequency transformer (B1) primary coil is connected with the inner core of input end signal line, the other end of high frequency transformer (B1) primary coil is connected with an end of high frequency transformer (B2) primary coil, one end of high frequency transformer (B1) secondary coil is connected back ground connection with the screen of input end signal line, the other end of high frequency transformer (B1) secondary coil is connected with the other end of high frequency transformer (B2) primary coil, the two ends of high frequency transformer (B2) secondary coil are connected with an end of high frequency transformer (B3) primary coil and an end of high frequency transformer (B3) secondary coil respectively, one end of high frequency transformer (B3) secondary coil is connected with the inner core of output end signal line, and the screen of the other end output end signal line of high frequency transformer B3 secondary coil connects back ground connection.
2, a kind of ground-free lightning arrester according to claim 1 is characterized in that, described three high frequency transformers (B1, B2, B3) are formed signal coupler.
3, a kind of ground-free lightning arrester according to claim 1 and 2 is characterized in that, described high frequency transformer (B2) is 1: 1 high frequency transformer, and it is isolated more than the withstand voltage 100KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040868A CN101630837A (en) | 2009-06-30 | 2009-06-30 | Ground-free lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040868A CN101630837A (en) | 2009-06-30 | 2009-06-30 | Ground-free lightning arrester |
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| Publication Number | Publication Date |
|---|---|
| CN101630837A true CN101630837A (en) | 2010-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910040868A Pending CN101630837A (en) | 2009-06-30 | 2009-06-30 | Ground-free lightning arrester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242791A (en) * | 2019-07-16 | 2021-01-19 | Abb瑞士股份有限公司 | Transformer assembly with intermediate frequency transformer |
-
2009
- 2009-06-30 CN CN200910040868A patent/CN101630837A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242791A (en) * | 2019-07-16 | 2021-01-19 | Abb瑞士股份有限公司 | Transformer assembly with intermediate frequency transformer |
| CN112242791B (en) * | 2019-07-16 | 2024-07-26 | Abb瑞士股份有限公司 | Transformer assembly with intermediate frequency transformer |
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Application publication date: 20100120 |