CN205596263U - New LAN distribution frame that has metal lightning protection circle - Google Patents
New LAN distribution frame that has metal lightning protection circle Download PDFInfo
- Publication number
- CN205596263U CN205596263U CN201520936355.1U CN201520936355U CN205596263U CN 205596263 U CN205596263 U CN 205596263U CN 201520936355 U CN201520936355 U CN 201520936355U CN 205596263 U CN205596263 U CN 205596263U
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- Prior art keywords
- lightning protection
- protection circle
- distribution frame
- metal
- lightning
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Abstract
The utility model provides a new LAN distribution frame that has metal lightning protection circle, includes a plurality of front end interfaces, multiunit electrical connection line and a plurality of back end interface, and characterized by installs a metal lightning protection circle around multiunit electrical connection line, metal lightning protection circle has connect the earth connection. When the network line increased because of thunder and lightning induced voltage by a wide margin, the metal lightning protection circle of installing around distribution frame electrical connection line can produce induced -current because of electromagnetic induction, and simultaneously, induced -current can be through earth connection flow direction ground to make the voltage in the whole network line reduce rapidly, protection distribution frame both ends equipment is not damaged by the thunder and lightning, the normal during operation of network line, and metal lightning protection circle is to not influence of the normal communication of network line. The utility model discloses avoided the distribution frame to adopt the plastics preparation, the shortcoming of the unable earial drainage of lightning current in the network line.
Description
Technical field
This utility model relates to a kind of lightning protection device, more particularly, to a kind of new local with metal lightning protection circle
Net distributing frame, belongs to network's thunder technical field.
Background technology
Shocking preventing technology is divided into direct lightning strike protection and induced lightening to protect two big categories, and present microelectronic device is caused by induced lightening
The probability damaged is significantly larger than direct lightning strike.Network's thunder belongs to induced lightening protection category, during direct lightning strike is released, as long as having
The place of circuit all can form transient voltage, thus the equipment at circuit two ends is formed damage, so, network signal lightning protection device is protected
Protector is directional, and the lightning current road direction along the line two ends impact that netting twine senses, so needing network terminal device to be required to
Do lightning protection to process.
Distributing frame purposes is mainly in order to the modular equipment being managed front-end information point at local side.The letter of front end
Initially enter distributing frame after between breath point cable (surpassing 5 classes or 6 class lines) access arrangement, line is beaten in the module of distributing frame, so
Afterwards with wire jumper (RJ45 interface) connection wiring frame and switch.Distributing frame is most important assembly in network management subsystem, rises
To the effect of network synthesis unified management, distributing frame front end connects subscriber equipment, and rear end connects switch, so distributing frame port
Lightning protection particularly significant.
Major part distributing frame does not has lightning protection facility, small part to have lightning protection facility at present, and its shocking preventing technology scheme there is also
The biggest deficiency, is mainly manifested in: for terrible relatively low residual voltage level, current distributing frame network's thunder device uses multistage anti-mostly
Thunder components and parts combine, and use energy coordination device to carry out decoupling, it is ensured that rear class equipment is the most powerful in the middle of multistage lightning protection components and parts
Lightning current or overvoltage damage, but this multistage lightning protection component combination lightning protection device owing to energy coordination devices in series is in master
In loop, present bigger impedance, in high frequency, present bigger electric capacity due to rear class lightning protection component again, thus cause by
The series connection of this network's thunder device is received and can be caused insertion loss increase, signal attenuation in main circuit, affects the transmission of network signal,
Therefore, it is necessary to prior art is improved.
Summary of the invention
The technical problems to be solved in the utility model is: major part distributing frame does not has lightning protection facility, small part to have anti-at present
Thunder facility, its shocking preventing technology scheme there is also the biggest deficiency, is mainly manifested in: for terrible relatively low residual voltage level, mostly
Use multistage lightning protection components and parts to combine, owing to energy coordination devices in series is in major loop, causes impedance relatively big, thus cause letter
Number decay, affect network signal transmit.For deficiency of the prior art, this utility model provides a kind of does not has parasitic capacitance
Lightning protection distributing frame.
This utility model adopts the following technical scheme that for solving technical problem
A kind of new LAN distributing frame with metal lightning protection circle, including multiple front end interfaces, organizes electrical interconnection more
And multiple back end interface, it is characterized in that, around many group electrical interconnections, a metal lightning protection circle, described metal lightning protection are installed
Circle is connected to earth lead.
The utility model has the advantage of: when grid line significantly increases because of lightning induced voltage, be arranged on distributing frame
Metal lightning protection circle around electrical interconnection can produce faradic current because of electromagnetic induction, and meanwhile, faradic current can pass through earth lead
Flowing to ground, so that the voltage in whole grid line reduces rapidly, protection distributing frame terminal device is not damaged by thunder and lightning, network
When line normally works, grid line proper communication is not affected by metal lightning protection circle.
This utility model avoids distributing frame and uses plastic production, and in grid line, lightning current cannot the shortcoming of earial drainage.
Of the present utility model being also advantageous in that, the distributing frame lightning protection structure provided is very simple, and production cost is relatively low.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of common distributing frame；In figure, 1,3,5 ... 47 is 24 front end interfaces, 2,4,6 ...
48 is 24 back end interfaces, and centre is electrical interconnection；
Fig. 2 is the circuit structure diagram of a kind of new LAN distributing frame with metal lightning protection circle described in the utility model；
In figure, 1,3,5 ... 47 is 24 front end interfaces, 2,4,6 ... 48 is 24 back end interfaces, and centre is electrical interconnection；A is
The metal lightning protection circle being arranged on around electrical interconnection.
Detailed description of the invention
This utility model is expanded on further below in conjunction with the accompanying drawings with detailed description of the invention.
This utility model relates to a kind of new LAN distributing frame with metal lightning protection circle as can be seen from Figure 2, described
LAN distributing frame includes multiple front end interface, many group electrical interconnections and multiple back end interface, a front end interface correspondence
One group of electrical interconnection, and a corresponding back end interface, be mounted with metal lightning protection circle, and ground connection around electrical interconnection.
When grid line significantly increases because of lightning induced voltage, it is arranged on the metal around distributing frame electrical interconnection and prevents
Thunder circle can produce faradic current because of electromagnetic induction, and meanwhile, faradic current can flow to ground by earth lead, so that whole network
Voltage in line reduces rapidly, and protection distributing frame terminal device is not damaged by thunder and lightning, when grid line normally works, and metal lightning protection circle
Grid line proper communication is not affected.
This utility model avoids distributing frame and uses plastic production, and in grid line, lightning current cannot the shortcoming of earial drainage.
Embodiment:
As in figure 2 it is shown, as a example by 24 mouthfuls of distributing frames, distributing frame has 24 front end interfaces, label is 1,3,5 respectively ...
.47, correspondingly, having 24 back end interfaces, label is 2,4,6 respectively ... .48, has between each front end interface and back end interface
1 group of connection line, is mounted with metal lightning protection circle, and ground connection around electrical interconnection.When grid line because of lightning induced voltage significantly
When degree increases, the metal lightning protection circle being arranged on around distributing frame electrical interconnection can be because of electromagnetic induction generation faradic current, meanwhile,
Faradic current can flow to ground by earth lead, so that the voltage in whole grid line reduces rapidly, protects distributing frame two ends
Equipment is not damaged by thunder and lightning, and when grid line normally works, grid line proper communication is not affected by metal lightning protection circle.
This utility model avoids distributing frame and uses plastic production, and in grid line, lightning current cannot the shortcoming of earial drainage.
This utility model can also be used for the lightning protection of other kinds of distributing frame, all changes without departing from this utility model spirit
Shape, is regarded as within protection domain of the present utility model.
Claims (1)
1. the new LAN distributing frame with metal lightning protection circle, including multiple front end interfaces, many group electrical interconnections with
And multiple back end interface, it is characterized in that, around many group electrical interconnections, a metal lightning protection circle, described metal lightning protection circle are installed
It is connected to earth lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936355.1U CN205596263U (en) | 2015-11-23 | 2015-11-23 | New LAN distribution frame that has metal lightning protection circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936355.1U CN205596263U (en) | 2015-11-23 | 2015-11-23 | New LAN distribution frame that has metal lightning protection circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205596263U true CN205596263U (en) | 2016-09-21 |
Family
ID=56926672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520936355.1U Expired - Fee Related CN205596263U (en) | 2015-11-23 | 2015-11-23 | New LAN distribution frame that has metal lightning protection circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205596263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882059A (en) * | 2017-05-10 | 2018-11-23 | 内江师范学院 | A kind of 10M/100M local area network distributing frame lightening arresting method |
-
2015
- 2015-11-23 CN CN201520936355.1U patent/CN205596263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882059A (en) * | 2017-05-10 | 2018-11-23 | 内江师范学院 | A kind of 10M/100M local area network distributing frame lightening arresting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20171123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |