CN2882024Y - Protection plug of power line access equipment - Google Patents
Protection plug of power line access equipment Download PDFInfo
- Publication number
- CN2882024Y CN2882024Y CN 200520100068 CN200520100068U CN2882024Y CN 2882024 Y CN2882024 Y CN 2882024Y CN 200520100068 CN200520100068 CN 200520100068 CN 200520100068 U CN200520100068 U CN 200520100068U CN 2882024 Y CN2882024 Y CN 2882024Y
- Authority
- CN
- China
- Prior art keywords
- power
- utility
- power line
- model
- plug
- 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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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides a protecting plug for power-cord networking equipment, pertains to the power-cord networking equipment, in particular to power-cord networking equipment with overvoltage and overcurrent protection. The utility model is an improvement of patent application 200520022246.5 Pressure-sensitive elements are directly welded between electrodes of a power socket, and are electrically connected with the signal-inputting end and power supply end of a modem. The utility model is of compact structure, small size, can prevent any discharging arc from damaging the main circuit board of the modem, and the induction of the protection circuit is at minimal level, so the utility model can provide good protection when being nearest to a power socket.
Description
Technical field
The utility model belongs to power line communications equipment, particularly with the power line communications equipment of overvoltage protection.
Technical background
Power line communications equipment also will obtain the required electric energy of Internet device from the electric power netting twine when realizing transfer of data by the electric power netting twine.Common thunder and lightning, the fault of power equipment and accident etc. very easily cause the power network line to form overvoltage.Overvoltage is invaded the power line communications device from coupling circuit and power circuit; served as overtension; when excessive the or coupling capacitor of immediate current is breakdown; also will produce overvoltage, overcurrent in the power line communications device; cause the damage of power line communications device and terminal; even jeopardize personal safety, therefore, it is very necessary taking anti-thunder and lightning and overvoltage protection on electric power modem.The applicant had once declared Chinese patent 200520022246.5 for this reason, and this device has installed protection component additional on electric power modem.But the protection component of existing power modulator-demodulator all directly is encapsulated in the space of same box with main circuit board, when discharging, arcing can injure main circuit board; Protection component and power line and longer to the lead-in wire of ground wire, distributed inductance is big, and the protection effect is also undesirable.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of protection plug of power line communications equipment, its compact conformation, and volume is little, do not take the protected device space, and the arcing that can prevent to discharge injures main circuit board, and the distributed inductance minimum of protective circuit.
Solving the scheme that technical problem of the present utility model adopts is: directly be welded with pressure cell between each electrode slice of attaching plug, and be electrically connected with the signal input part and the power end of modulator-demodulator.
Since three electrode slices of attaching plug directly and pressure cell weld together, make the shortest victory of lead-in wire of protection component and power line and ground wire in the device, the most close supply socket (inlet wire), the distributed inductance minimum can obtain the better protect effect; Plug separates fully with modulator-demodulator, and plug inside directly is welded with pressure cell, can prevent that voltage protection element and attaching plug electrode slice from causing discharge because of overvoltage, causes arcing to damage the main circuit board of modulator-demodulator; The electrode slice of attaching plug and pressure cell weld and are fixed into one with plug casing, make the volume of this device less, and can prevent to become flexible, and guarantee to use reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Each label is represented successively among the figure: pressure cell 1,2 and 3, grounding electrode 4, line electrode 5, zero wire electrode 6, modulator-demodulator 7, housing 8 mutually.
Embodiment
Referring to Fig. 1, directly be welded with pressure cell 1,2 and 3 between each electrode 4,5 and 6 of this attaching plug, and each electrode 4,5 and 6 is electrically connected with the signal input part and the power end of modulator-demodulator 7.Three electrodes 4,5 of attaching plug and 6 and the housing 8 of plug be fixed into one, can prevent plug electrode in using repeatedly loosening and pressure cell and electrode disengaging, influence the trouble free service of modulator-demodulator.
Claims (2)
1, a kind of protection plug of power line communications equipment is characterized in that, directly is welded with pressure cell between each electrode slice of attaching plug, and is electrically connected with the signal input part and the power end of modulator-demodulator.
2, by the protection plug of the described power line communications equipment of claim 1, its feature is being: three electrode slices and the plug casing of modulator-demodulator attaching plug are fixed into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100068 CN2882024Y (en) | 2005-12-29 | 2005-12-29 | Protection plug of power line access equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100068 CN2882024Y (en) | 2005-12-29 | 2005-12-29 | Protection plug of power line access equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2882024Y true CN2882024Y (en) | 2007-03-21 |
Family
ID=37881865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100068 Expired - Fee Related CN2882024Y (en) | 2005-12-29 | 2005-12-29 | Protection plug of power line access equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2882024Y (en) |
-
2005
- 2005-12-29 CN CN 200520100068 patent/CN2882024Y/en not_active Expired - Fee Related
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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 |