CN202997542U - Lightning protection device adapter box of filtering type telephone - Google Patents
Lightning protection device adapter box of filtering type telephone Download PDFInfo
- Publication number
- CN202997542U CN202997542U CN 201220389303 CN201220389303U CN202997542U CN 202997542 U CN202997542 U CN 202997542U CN 201220389303 CN201220389303 CN 201220389303 CN 201220389303 U CN201220389303 U CN 201220389303U CN 202997542 U CN202997542 U CN 202997542U
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- China
- Prior art keywords
- lightning protection
- thermistor
- circuit
- line
- protection device
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- 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 discloses a lightning protection device adapter box of a filtering type telephone. The lightning protection device adapter box of the filtering type telephone comprises a box body, the side surface of the box body is equipped with a line input interface and a line output interface, and a lightning protection circuit is arranged in the box body; a thermistor R1 and a thermistor R2 are series connected in an anode line of the lightning protection circuit, and a thermistor R3 is series connected in a cathode line; a thermistor R4 and a thermistor R5 are parallelly connected at the two ends of the thermistor R1 and the thermistor R2, and a resistor R6 and a bridge type rectifier D which are in series connection orderly are parallelly connected between the anode line and the cathode line at one side of the line output interface. The lightning protection device adapter box of the filtering type telephone of the utility model is simple in structure, can be accessed in any one line in which the lightning protection device is not arranged, does not affect the normal transmission of a signal in the line, and can absorb different abnormal currents by utilizing the thermistors and voltage-sensitive resistors to form a primary lightning protection loop and a secondary lightning protection loop, thereby protecting a communication device furthest.
Description
Technical field
The utility model relates to a kind of lightning protection device, is specifically related to a kind of attaching plug to household electrical appliance and carries out the interconnecting device that surge is filtered.
Background technology
Lightning protection for power supply of the prior art, mostly be the circuit of some absorptions being installed or abnormal surge being gone underground in electric socket, both are structure as a whole, namely can only buy the power panel with lightning protection device, and can not make the existing power panel of family can realize lightning protection effect, cause the waste of existing power supply plate.This type of is with the power panel of lightning protection device in addition, indoor ground connection there is certain requirement, as concerning telephone line, after lightning protection measures is installed, ground connection must indoorly be arranged, and requiring the earth resistance can not be greater than 5 Europe, this is not easy to realize above-mentioned requirements for the family that there is no electrician's general knowledge, finally may cause the lightning protection device of family to become ornaments.
The utility model content
in prior art, lightning arrester for telephone needs ground connection just can prevent the problem of surge in order to solve, the utility model provides a kind of filtering type power supply lightning protection device interconnecting device, concrete scheme is as follows: a kind of filtering type phone lightning protection device interconnecting device, comprise a box body, described box body side is provided with Line and circuit output interface, it is characterized in that, in described box body, lightning protection circuit is installed, be in series with thermistor R1 and thermistor R2 on the anodal circuit of described lightning protection circuit, be in series with thermistor R3 on the negative pole circuit, the two ends of thermistor R2 and thermistor R3 are parallel with thermistor R4 and thermistor R5, be parallel with resistance R 6 and the bridge rectifier D of series connection successively between the anodal circuit of circuit output interface one side and negative pole circuit.
For understanding at any time the operating state of circuit: be provided with the LED lamp of indicating operating status on described box body, the LED lamp is in parallel with the bridge rectifier in lightning protection circuit.
Can not in time process for preventing excessive abnormal current: be connected with fusing type protective tube between the resistance R 6 of described lightning protection circuit and circuit output interface.
the utility model is simple in structure, can access any one not on the circuit with thunder resisting equipment, do not affect the normal transmission of signal on circuit, only the abnormal current that exceeds standard is tackled and absorbed, do not need to change the structure on existing line, utilize LED lamp circuit state, make the operating state of interconnecting device can be very clear, the utility model utilizes thermistor and piezo-resistance to consist of one-level lightning protection loop and secondary lightning protection loop, can the abnormal current of different sizes be absorbed, the final safeguard measure of utilizing fusing type protective tube to form, can avoid lightning protection circuit can not be in time or the abnormal current of not processing tackle, farthest protected communication apparatus.The utility model can be saved cost and be easy to and promote.
Description of drawings
The outside schematic diagram of Fig. 1 box body of the present utility model;
Fig. 2 lightning protection circuit schematic diagram of the present utility model.
Attached number in the figure explanation: 1-box body, 2-circuit input interface, 3-circuit output interface, 4-LED lamp, 5-fusing type protective tube.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
as Fig. 1, shown in 2, filtering type phone lightning protection device interconnecting device of the present utility model, comprise a box body 1, be provided with Line 2 and circuit output interface 3 in the side of box body 1, in box body 1, lightning protection circuit is installed, be in series with thermistor R1 and thermistor R2 on the anodal circuit of lightning protection circuit, be in series with thermistor R3 on the negative pole circuit, the two ends of thermistor R2 and thermistor R3 are parallel with thermistor R4 and thermistor R5, be parallel with resistance R 6 and the bridge rectifier D of series connection successively between the anodal circuit of circuit output interface 3 one sides and negative pole circuit.For whether the work of understanding at any time interconnecting device is normal, be provided with the LED lamp 4 of indicating operating status on box body, LED lamp 4 is in parallel with the bridge rectifier D in lightning protection circuit.Do not absorb excessive electric current for fear of lightning protection circuit, be connected with fusing type protective tube 5 between the resistance R 6 of lightning protection circuit and circuit output interface.
When the telephone wire electric current entered lightning protection circuit through the circuit input interface, thermistor R1, piezo-resistance R4 and fusing type protective tube consisted of one-level lightning protection loop, first abnormal current are absorbed.Thermistor R1, thermistor R2, piezo-resistance R5 and fusing type protective tube consist of secondary lightning protection loop; if same secondary lightning protection loop abnormal current is excessive; in the time of can not in time absorbing, fusing type protective tube also can fuse, with the equipment that connects on the protection circuit output interface.when circuit is struck by lightning, the voltage at circuit input interface place raises suddenly, piezo-resistance R4 and piezo-resistance R5 present low resistance with the response speed of nanosecond, abnormal current rises when flowing through thermistor R1 and thermistor R2 and thermistor R3 rapidly, in short time, three resistances surge, rapidly the limiting voltage of circuit output interface end in 160V, thereby stopped fast and effectively the destruction of lightning voltage to communication apparatus, for the larger abnormal current of energy, fusing type protective tube meeting quick-break, avoid equally abnormal current to the impact of communication apparatus.The LED lamp is in luminance when communication line is normal, if can change brightness according to the size of abnormal current when running into abnormal current on circuit, the LED lantern festival is in and extinguishes state if fusing type protective tube fuses, and effectively provides line status intuitively for the user.When circuit was normal, lightning protection circuit can not have any impact to the signal in circuit.
the above is only preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, anyly be familiar with the technical staff of this patent within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of the utility model scheme.
Claims (3)
1. filtering type phone lightning protection device interconnecting device, comprise a box body (1), described box body (1) side is provided with Line (2) and circuit output interface (3), it is characterized in that, described box body is equipped with lightning protection circuit in (1), be in series with thermistor R1 and thermistor R2 on the anodal circuit of described lightning protection circuit, be in series with thermistor R3 on the negative pole circuit, the two ends of thermistor R2 and thermistor R3 are parallel with thermistor R4 and thermistor R5, be parallel with resistance R 6 and the bridge rectifier D of series connection successively between the anodal circuit of circuit output interface one side and negative pole circuit.
2. a kind of filtering type phone lightning protection device interconnecting device as claimed in claim 1, is characterized in that, be provided with the LED lamp (4) of indicating operating status on described box body, the LED lamp is in parallel with the bridge rectifier D in lightning protection circuit.
3. a kind of filtering type phone lightning protection device interconnecting device as claimed in claim 2, is characterized in that, is connected with fusing type protective tube (5) between the resistance R 6 of described lightning protection circuit and circuit output interface (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389303 CN202997542U (en) | 2012-08-08 | 2012-08-08 | Lightning protection device adapter box of filtering type telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389303 CN202997542U (en) | 2012-08-08 | 2012-08-08 | Lightning protection device adapter box of filtering type telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997542U true CN202997542U (en) | 2013-06-12 |
Family
ID=48568674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389303 Expired - Fee Related CN202997542U (en) | 2012-08-08 | 2012-08-08 | Lightning protection device adapter box of filtering type telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202997542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633937A (en) * | 2016-02-29 | 2016-06-01 | 长沙群瑞电子科技有限公司 | Single-phase power supply series-wound type overvoltage protector |
-
2012
- 2012-08-08 CN CN 201220389303 patent/CN202997542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633937A (en) * | 2016-02-29 | 2016-06-01 | 长沙群瑞电子科技有限公司 | Single-phase power supply series-wound type overvoltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Leishidun (Beijing) Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Qi Document name: payment instructions |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20200808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |