CN2371715Y - Lightning arrestor for communication terminal equipment - Google Patents
Lightning arrestor for communication terminal equipment Download PDFInfo
- Publication number
- CN2371715Y CN2371715Y CN 99237676 CN99237676U CN2371715Y CN 2371715 Y CN2371715 Y CN 2371715Y CN 99237676 CN99237676 CN 99237676 CN 99237676 U CN99237676 U CN 99237676U CN 2371715 Y CN2371715 Y CN 2371715Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- communication terminal
- lightning
- fuse
- 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
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a lightning protection device for communication terminal equipment, which is especially suitable for lightning protection of telephones, fax machines, multimedia, etc. The utility model is characterized in that a clamping component is connected to the protection device in parallel; two ends of the clamping component respectively passing though self reset fuses are connected with an outside line. The utility model has the advantages of small elements, simple structure and reliable operation; the utility model can prevent successive voltage of over 220 volts from touching and avoid transient lightning strike; the utility model can automatically reset, saves manufacture cost of people and materials, and enhance safety and service life of the equipment.
Description
The utility model relates to a kind of lightning guard of communication terminal device, is particularly useful for the lightning protected of telephone set, facsimile machine, multimedia etc.
At present, the lightning protection equipment that logical machine terminal equipment such as telephone set adopts, generally adopt be piezo-resistance as protector, be installed in the protected machine, it protect weak effect, responsiveness is slow, protective range is narrow, rapid wear, and maintenance is big, safeguards inconvenience.
The purpose of this utility model provides a kind of simple in structure, reliable in action, and long service life is external in protected equipment, non-maintaining communication terminal device lightning guard.
The technical scheme of practical the utility model purpose is: be parallel with clamping device on protected equipment; two ends of clamping device are respectively through connecing outside line behind the fuse that resets; because the effect of the positive temperature coefficient of self-healing fuse and rapid action, the clamp of clamping device; resist and isolated forceful electric power and pressed intrusion, guaranteed the safety of communication terminal equipment equipment.
Said clamping device is solid-state discharger or bipolarity TVS clamping diode in the such scheme.
Said fuse is a self-healing fuse in the such scheme.
The utility model is compared with prior art; circuit element is few; simple in structure; reliable in action; can prevent that 220 volts of above continuous voltages from taking bumps and anti-transient state thunder and lightning attacks, and is external in protected equipment, can be automatically, reset certainly; exempt the expense of the human, financial, and material resources in safeguarding, the fail safe and the useful life of having improved equipment.
Accompanying drawing is an electrical schematic diagram of the present utility model.
Below in conjunction with accompanying drawing to this practical being described in further detail:
Fuse 1, clamping device 2 and self-healing fuse 3 be also series connection successively, two ends C, the d of clamping device 2 is output, in parallel with communication terminal device, the other end of self-healing fuse 1,3 meets outside line a, b respectively, and clamping device 2 can be solid-state discharge tube or bipolarity TVS clamping diode; Fuse 1,3 is a self-healing fuse; When the outside line magnitude of voltage when normal working voltage is following because self-healing fuse 1,3 and solid-state discharge tube or bipolarity TVS clamping diode 2 all are operated in critical condition, can guarantee passing through of equipment normal working voltage fully to satisfy the needs of operate as normal; Take to bump as 220 volts of above voltages and attack with thunder and lightning, make outside line voltage surpass normal voltage in a flash, because self-healing fuse 1, the rapid action of the effect of 3 positive temperature coefficient and clamping device 2, clamp, resist and isolate forceful electric power and press intrusion equipment, guaranteed the safety of communication terminal device, after the forceful electric power of outside line is pressed disappearance, self-healing fuse 1,3 automatically restore to initial condition, the utility model can be made a box body, with self-healing fuse 1,3 and after clamping device 2 is electrically connected, be fixed in the insulation shell, on housing, be fixed with outside line terminals a, b and communication terminal device binding post c, d.
Claims (3)
1, a kind of communication terminal device lightning guard is characterized in that being parallel with clamping device 2 on protected equipment, the two ends of clamping device 2 connect outside line respectively behind fuse 1,3.
2, communication terminal device lightning guard as claimed in claim 1 is characterized in that said clamping device 2 is bipolarity TVS diode or solid-state discharge tube.
3, communication terminal device lightning guard as claimed in claim 1 is characterized in that said fuse 1,3 is self-healing fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237676 CN2371715Y (en) | 1999-05-11 | 1999-05-11 | Lightning arrestor for communication terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237676 CN2371715Y (en) | 1999-05-11 | 1999-05-11 | Lightning arrestor for communication terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371715Y true CN2371715Y (en) | 2000-03-29 |
Family
ID=34025271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99237676 Expired - Fee Related CN2371715Y (en) | 1999-05-11 | 1999-05-11 | Lightning arrestor for communication terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371715Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346550A (en) * | 2013-07-31 | 2013-10-09 | 哈尔滨威星动力电源科技开发有限责任公司 | Voltage surge protection circuit of battery management system suitable for electric car |
| CN107221922A (en) * | 2017-07-13 | 2017-09-29 | 江苏创通电子股份有限公司 | A kind of overvoltage self-protection circuit |
| CN104078922B (en) * | 2013-03-29 | 2017-12-12 | 泰科电子(上海)有限公司 | Short-circuit protection |
-
1999
- 1999-05-11 CN CN 99237676 patent/CN2371715Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078922B (en) * | 2013-03-29 | 2017-12-12 | 泰科电子(上海)有限公司 | Short-circuit protection |
| CN103346550A (en) * | 2013-07-31 | 2013-10-09 | 哈尔滨威星动力电源科技开发有限责任公司 | Voltage surge protection circuit of battery management system suitable for electric car |
| CN107221922A (en) * | 2017-07-13 | 2017-09-29 | 江苏创通电子股份有限公司 | A kind of overvoltage self-protection circuit |
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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 |