CN2321155Y - Lightening arrester for electronic equipment - Google Patents
Lightening arrester for electronic equipment Download PDFInfo
- Publication number
- CN2321155Y CN2321155Y CN 97232239 CN97232239U CN2321155Y CN 2321155 Y CN2321155 Y CN 2321155Y CN 97232239 CN97232239 CN 97232239 CN 97232239 U CN97232239 U CN 97232239U CN 2321155 Y CN2321155 Y CN 2321155Y
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- CN
- China
- Prior art keywords
- current
- transmission lines
- lightning protection
- bars transmission
- circuit
- 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
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Abstract
The utility model relates to a lightening arrester for electronic equipment, particularly a lightening arrester which is arranged on signal input lines. The control circuit of the utility model comprises a lightning protection overvoltage and overcurrent protection circuit, an overcurrent protection circuit, and an overvoltage protection circuit used for treating residual voltages in the two stages can be provided. The utility model can be used for effectively breaking the intrusion of a lightning stroke current and a lightning stroke voltage from signal transmission lines of the electronic equipment, and has the advantages of ideal lightning protection effect, and simple structure.
Description
The utility model relates to a kind of electronic equipment lightning protection protective device, and especially a kind of lightning protection protective device of being located at signal input line belongs to protector.
Various electronic equipments, as electronic instruments, electronic computer, communication apparatus etc., owing to thunderbolt causes the device damage accident to occur repeatedly, various lightning-arrest, lightning protection device to the lightning strike accident criminal of preventing all is to be serially connected on the power line now, and to signal transmssion line, particularly the lightning protection of outdoor transmission line fails to solve always, existing single as telephone set lightning protection device performance, lightning protection measures is simple, lightning protection effect is undesirable, and a kind of comprehensive lightning protection device that can be applicable to various electronic equipment signal input lines is not arranged at present as yet.
The purpose of this utility model be to provide a kind of thunder-strike current capable of blocking by the invasion of electronic equipment signal transmssion line, lightning protection effect ideal, be suitable for the lightning protector of various dissimilar electronic equipments.
The purpose of this utility model is achieved through the following technical solutions: a kind of electronic equipments lightning protection protector, include housing, control circuit, and its special character is that described control circuit includes lightning protection over-voltage over-current protection circuit, current foldback circuit in regular turn.For residual voltage remaining behind above two-stage circuit is handled digestion, also can after current foldback circuit, be provided with overvoltage crowbar again.
In the described lightning protection over-voltage over-current protection circuit, be serially connected with respectively on the two bars transmission lines by two inductance choking-windings, high-frequency electromagnetic wave to thunderbolt is blocked, instantaneous large-current when thunderbolt is taken place is discharged by the rapid conducting generation of the vacuum discharge tube short circuit that is connected across on two transmission lines; On two bars transmission lines, also be connected in series current-limiting resistance respectively, thunder-strike current is played metering function; All being connected to piezo-resistance between the two bars transmission lines and between two bars transmission lines and the ground, lightning voltage is carried out amplitude limit.
In the above-mentioned lightning protection over-voltage over-current protection circuit, also can establish one group of piezo-resistance again, thunderbolt voltage is made further amplitude limit.Connected mode is: after current-limiting resistance, be respectively equipped with piezo-resistance between the two bars transmission lines and between two bars transmission lines and the ground.
Described current foldback circuit is: be connected in series PTC resistance respectively on two bars transmission lines; in case surpass its operating current because PTC resistance has electric current; then; the characteristics that impedance just increases rapidly; so in case thunder-strike current is excessive in the signal transmssion line; then PTC resistance becomes high impedance rapidly, the thunder-strike current in the blocking-up transmission line.
Described overvoltage crowbar is removed remaining residual voltage after preceding two-stage protection for being connected to transient overvoltage protection diode between the two bars transmission lines and between two bars transmission lines and the ground respectively, and the lightning protection effect is further strengthened.
The utility model can be blocked thunder-strike current effectively, voltage is encroached on from the signal transmssion line of electronic equipment, and is anti-lightning strike satisfactory for result, simple in structure, applied range.
Description of drawings:
Fig. 1-the utility model electricity functional-block diagram.
Fig. 2-the utility model embodiment 1 electrical schematic diagram.
Fig. 3-the utility model embodiment 2 electrical schematic diagrams.
Provide specific embodiment of the utility model below in conjunction with accompanying drawing, be used for that the utility model will be further described.
Embodiment 1, with reference to figure 1 and Fig. 2, be provided with two inductance choking-winding L1, L2 in the lightning protection over-voltage over-current protection circuit 1 in its control circuit and be serially connected with two bars transmission lines respectively on AA ', BB ', cross-over connection is carried out the vacuum discharge tube VE of short circuit dischange and thunderbolt voltage is carried out the Zinc-oxide piezoresistor MY3 of amplitude limit instantaneous large-current between AA ' and the BB ', also be connected to Zinc-oxide piezoresistor MY1, MY2 between AA ', BB ' and the ground respectively, also be serially connected with current-limiting resistance R1, R2 on AA ', the BB ' respectively; Current foldback circuit 2 is for being serially connected with PTC resistance R 3, the R4 that excessive thunder-strike current is blocked respectively on AA ', BB '; Overvoltage crowbar 3 is for respectively being connected to transient overvoltage protection diode D3, D2, D1 between AA ', the BB ' and between AA ', BB ' and the ground.
The lightning protector of present embodiment is serially connected in the signal input line of electronic equipment when using; the AB end joins with the extraneous signal line; A ' B ' end links to each other with need protection electronic equipment signal input part, can effectively block the infringement to electronic equipment of thunder-strike current, voltage, the lightning protection effect ideal.
The lightning protector of present embodiment can be blocked the infringement to electronic equipment of thunder-strike current, voltage more effectively, and lightning protection effect is desirable more.
The electronic equipment of corresponding different operating voltage, as telephone set, microcomputer, TV receiving apparatus etc., each component value of the present utility model requires the respective design coupling according to normal working voltage and impedance loop.
Claims (5)
1, a kind of electronic equipments lightning protection protector includes housing, control circuit, it is characterized in that described control circuit includes lightning protection over-voltage over-current protection circuit (1), current foldback circuit (2) in regular turn.
2,, it is characterized in that described control circuit also is provided with overvoltage crowbar (3) afterwards at current foldback circuit (2) according to the described a kind of electronic equipments lightning protection protector of claim 1.
3, according to the described a kind of electronic equipments lightning protection protector of claim 1, it is characterized in that in the described lightning protection over-voltage over-current protection circuit (1) by two inductance choking-windings (L1), (L2) be serially connected with respectively on the two bars transmission lines, cross-over connection has pair instantaneous large-current to carry out the vacuum discharge tube (VE) of short circuit dischange and thunderbolt voltage is carried out the piezo-resistance (MY3) of amplitude limit between two bars transmission lines, between two bars transmission lines and ground, also be connected to the piezo-resistance (MY1) of thunderbolt voltage being carried out amplitude limit, (MY2), on two bars transmission lines, also be connected in series current-limiting resistance (R1) respectively, (R2); Described current foldback circuit (2) is for being serially connected with PTC resistance (R3), (R4) that excessive thunder-strike current is blocked respectively on two bars transmission lines.
4,, it is characterized in that described overvoltage crowbar (3) is for being connected to transient overvoltage protection diode (D3), (D2), (D1) respectively between the two bars transmission lines and between two bars transmission lines and the ground according to the described a kind of electronic equipments lightning protection protector of claim 2.
5, according to the described a kind of electronic equipments lightning protection protector of claim 3; it is characterized in that in the described lightning protection over-voltage over-current protection circuit; at current-limiting resistance (R1), (R2) afterwards; be provided with one group of piezo-resistance (MY4), (MY5), (MY6) again; (MY4) be located between the two bars transmission lines, (MY5), (MY6) be located at respectively between two bars transmission lines and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97232239 CN2321155Y (en) | 1997-12-08 | 1997-12-08 | Lightening arrester for electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97232239 CN2321155Y (en) | 1997-12-08 | 1997-12-08 | Lightening arrester for electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321155Y true CN2321155Y (en) | 1999-05-26 |
Family
ID=33944081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97232239 Expired - Fee Related CN2321155Y (en) | 1997-12-08 | 1997-12-08 | Lightening arrester for electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321155Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373731C (en) * | 2005-03-04 | 2008-03-05 | 昆山双桥传感器测控技术有限公司 | Lightningproof circuit and immersion type piezoresistance liquid level transmitter with the same |
| US7656638B2 (en) | 2004-05-18 | 2010-02-02 | Abb Oy | Earthing and overvoltage protection arrangement |
| CN102420424A (en) * | 2011-12-16 | 2012-04-18 | 铜陵浩岩节能科技有限公司 | Lightning shielding tester |
| CN102420425A (en) * | 2011-12-26 | 2012-04-18 | 贵州航天天马机电科技有限公司 | Anti-surging protection device for computer controller |
| CN102611091A (en) * | 2012-03-02 | 2012-07-25 | 云南电力试验研究院（集团）有限公司电力研究院 | Lightning stroke prevention surge test protection circuit for electronic equipment |
| WO2016146086A3 (en) * | 2015-03-19 | 2017-01-12 | Ripd Research And Ip Development Ltd. | Devices for overvoltage, overcurrent and arc flash protection |
-
1997
- 1997-12-08 CN CN 97232239 patent/CN2321155Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7656638B2 (en) | 2004-05-18 | 2010-02-02 | Abb Oy | Earthing and overvoltage protection arrangement |
| CN1954471B (en) * | 2004-05-18 | 2010-06-16 | Abb有限公司 | Earthing and overvoltage protection arrangement |
| CN100373731C (en) * | 2005-03-04 | 2008-03-05 | 昆山双桥传感器测控技术有限公司 | Lightningproof circuit and immersion type piezoresistance liquid level transmitter with the same |
| CN102420424A (en) * | 2011-12-16 | 2012-04-18 | 铜陵浩岩节能科技有限公司 | Lightning shielding tester |
| CN102420425A (en) * | 2011-12-26 | 2012-04-18 | 贵州航天天马机电科技有限公司 | Anti-surging protection device for computer controller |
| CN102611091A (en) * | 2012-03-02 | 2012-07-25 | 云南电力试验研究院（集团）有限公司电力研究院 | Lightning stroke prevention surge test protection circuit for electronic equipment |
| WO2016146086A3 (en) * | 2015-03-19 | 2017-01-12 | Ripd Research And Ip Development Ltd. | Devices for overvoltage, overcurrent and arc flash protection |
| CN107636925A (en) * | 2015-03-19 | 2018-01-26 | Ripd研究与知识产权发展有限公司 | Device for the protection of overvoltage, overcurrent and flashing |
| US10447023B2 (en) | 2015-03-19 | 2019-10-15 | Ripd Ip Development Ltd | Devices for overvoltage, overcurrent and arc flash protection |
| CN107636925B (en) * | 2015-03-19 | 2020-08-04 | Ripd知识产权发展有限公司 | Device for overvoltage, overcurrent and flashover protection |
| US11527879B2 (en) | 2015-03-19 | 2022-12-13 | Ripd Ip Development Ltd | Devices for overvoltage, overcurrent and arc flash protection |
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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 |