CN203233174U - Lightning protector applicable to high-voltage environment - Google Patents
Lightning protector applicable to high-voltage environment Download PDFInfo
- Publication number
- CN203233174U CN203233174U CN 201320261723 CN201320261723U CN203233174U CN 203233174 U CN203233174 U CN 203233174U CN 201320261723 CN201320261723 CN 201320261723 CN 201320261723 U CN201320261723 U CN 201320261723U CN 203233174 U CN203233174 U CN 203233174U
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- positive
- triode
- negative
- lightning
- npn type
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Abstract
The utility model discloses a lightning protector applicable to a high-voltage environment, and the protector comprises a protector shell. The protector shell is provided with an IO port and an internal circuit interface. The protector shell is fixedly equipped with a lightning protection circuit. The lightning protection circuit is connected between the IO port and the internal circuit interface. The lightning protector is advantageous by employing a circuit structure to discharge lightning and having a simple structure. And the cost of the lightning protector is low.
Description
Technical field
The utility model relates to a kind of lightning guard, relates to a kind of lightning guard that is applicable to high voltage environment in particular.
Background technology
In summer, thunderstorm multiple season, thunder and lightning often takes place.Lightning protection circuit in all fields is complete, the general form of building lightning protection device that adopts of the lightning protection measures of present hyperbaric environment.It is the structure bulky complex not only, and not only needs lot of manpower and material resources when building.
The utility model content
The utility model provides a kind of lightning guard that is applicable to high voltage environment, and it adopts the structure of circuit that thunder and lightning is released, and its circuit structure is simple, and is with low cost.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of lightning guard that is applicable to high voltage environment; it comprises protector outer casing; described protector outer casing is provided with IO port and internal circuit interface; in the described protector outer casing lightning protection circuit is arranged fixedly, described lightning protected circuit is connected between IO port and the internal circuit interface.
Further technical scheme is:
Described lightning protected circuit comprises positive-negative-positive triode T1; positive-negative-positive triode T2; NPN type triode T3; NPN type triode T4 and voltage stabilizing didoe D1; the base stage of described positive-negative-positive triode T1 links to each other with its emitter and is connected on the VDD simultaneously; the emitter of described positive-negative-positive triode T2 is connected on the collector electrode of positive-negative-positive triode T1; the collector electrode of described positive-negative-positive triode T2 is connected on the collector electrode of NPN type triode T3; the emitter of described NPN type triode T4 is connected on the emitter of NPN type triode T3; the base stage of described NPN type triode T4 links to each other with its emitter and ground connection simultaneously, and the positive pole of described voltage stabilizing didoe D1 is connected on the emitter of NPN type triode T4 and its negative pole links to each other with VDD.
Described lightning protected circuit also comprises capacitor C 1 and capacitor C 2, and the two ends of described capacitor C 1 are connected on the base stage and collector electrode of positive-negative-positive triode T2, and the two ends of described capacitor C 2 are connected on the base stage and collector electrode of NPN type triode T3.
Described lightning protected circuit also comprises a resistance R 1, and an end of described resistance R 1 is connected on the IO port, and the other end is connected between the collector electrode of the collector electrode of positive-negative-positive triode T2 and NPN type triode T3 and this end is connected on the internal circuit interface simultaneously.
In the utility model, utilize the form of circuit that thunder and lightning is released, because positive-negative-positive triode T1 and positive-negative-positive triode T2 series connection, NPN type triode T3 and NPN type triode T4 series connection can reach anti-high pressure.Voltage stabilizing didoe D1 is used for positive-negative-positive triode T1, positive-negative-positive triode T2, NPN type triode T3, NPN type triode T4 are protected, and avoids high voltage to the destruction of triode.The effect of resistance R 1 its current limliting is used for comprising the protection internal circuit; Capacitor C 1 and capacitor C 2 are used for preventing the interference of power supply perturbation signal.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is applicable to that high-tension environment uses, and its circuit structure is simple, is convenient to make, and is with low cost.
2, triode T1 of the present utility model, positive-negative-positive triode T2, NPN type triode T3, NPN type triode T4 and voltage stabilizing didoe D1 constitute many thunders and lightnings path of releasing, and can effectively release to thunder and lightning.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
[embodiment]
A kind of lightning guard that is applicable to high voltage environment as shown in Figure 1; it comprises protector outer casing; described protector outer casing is provided with IO port and internal circuit interface; in the described protector outer casing lightning protection circuit is arranged fixedly, described lightning protected circuit is connected between IO port and the internal circuit interface.
Described lightning protected circuit comprises positive-negative-positive triode T1; positive-negative-positive triode T2; NPN type triode T3; NPN type triode T4 and voltage stabilizing didoe D1; the base stage of described positive-negative-positive triode T1 links to each other with its emitter and is connected on the VDD simultaneously; the emitter of described positive-negative-positive triode T2 is connected on the collector electrode of positive-negative-positive triode T1; the collector electrode of described positive-negative-positive triode T2 is connected on the collector electrode of NPN type triode T3; the emitter of described NPN type triode T4 is connected on the emitter of NPN type triode T3; the base stage of described NPN type triode T4 links to each other with its emitter and ground connection simultaneously, and the positive pole of described voltage stabilizing didoe D1 is connected on the emitter of NPN type triode T4 and its negative pole links to each other with VDD.
Described lightning protected circuit also comprises capacitor C 1 and capacitor C 2, and the two ends of described capacitor C 1 are connected on the base stage and collector electrode of positive-negative-positive triode T2, and the two ends of described capacitor C 2 are connected on the base stage and collector electrode of NPN type triode T3.
Described lightning protected circuit also comprises a resistance R 1, and an end of described resistance R 1 is connected on the IO port, and the other end is connected between the collector electrode of the collector electrode of positive-negative-positive triode T2 and NPN type triode T3 and this end is connected on the internal circuit interface simultaneously.
Be embodiment of the present utility model as mentioned above.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (4)
1. lightning guard that is applicable to high voltage environment; it comprises protector outer casing; it is characterized in that: described protector outer casing is provided with IO port and internal circuit interface; in the described protector outer casing lightning protection circuit is arranged fixedly, described lightning protected circuit is connected between IO port and the internal circuit interface.
2. a kind of lightning guard that is applicable to high voltage environment according to claim 1; it is characterized in that: described lightning protected circuit comprises positive-negative-positive triode T1; positive-negative-positive triode T2; NPN type triode T3; NPN type triode T4 and voltage stabilizing didoe D1; the base stage of described positive-negative-positive triode T1 links to each other with its emitter and is connected on the VDD simultaneously; the emitter of described positive-negative-positive triode T2 is connected on the collector electrode of positive-negative-positive triode T1; the collector electrode of described positive-negative-positive triode T2 is connected on the collector electrode of NPN type triode T3; the emitter of described NPN type triode T4 is connected on the emitter of NPN type triode T3; the base stage of described NPN type triode T4 links to each other with its emitter and ground connection simultaneously, and the positive pole of described voltage stabilizing didoe D1 is connected on the emitter of NPN type triode T4 and its negative pole links to each other with VDD.
3. a kind of lightning guard that is applicable to high voltage environment according to claim 2; it is characterized in that: described lightning protected circuit also comprises capacitor C 1 and capacitor C 2; the two ends of described capacitor C 1 are connected on the base stage and collector electrode of positive-negative-positive triode T2, and the two ends of described capacitor C 2 are connected on the base stage and collector electrode of NPN type triode T3.
4. a kind of lightning guard that is applicable to high voltage environment according to claim 2; it is characterized in that: described lightning protected circuit also comprises a resistance R 1; one end of described resistance R 1 is connected on the IO port, and the other end is connected between the collector electrode of the collector electrode of positive-negative-positive triode T2 and NPN type triode T3 and this end is connected on the internal circuit interface simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261723 CN203233174U (en) | 2013-05-15 | 2013-05-15 | Lightning protector applicable to high-voltage environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261723 CN203233174U (en) | 2013-05-15 | 2013-05-15 | Lightning protector applicable to high-voltage environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233174U true CN203233174U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261723 Expired - Fee Related CN203233174U (en) | 2013-05-15 | 2013-05-15 | Lightning protector applicable to high-voltage environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683236A (en) * | 2013-11-28 | 2014-03-26 | 成都市宏山科技有限公司 | Camera with electrostatic protection function |
-
2013
- 2013-05-15 CN CN 201320261723 patent/CN203233174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683236A (en) * | 2013-11-28 | 2014-03-26 | 成都市宏山科技有限公司 | Camera with electrostatic protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140515 |