CN201153213Y - Traverse ligjtning shock discharging circuit` ( - Google Patents
Traverse ligjtning shock discharging circuit` ( Download PDFInfo
- Publication number
- CN201153213Y CN201153213Y CNU200820001865XU CN200820001865U CN201153213Y CN 201153213 Y CN201153213 Y CN 201153213Y CN U200820001865X U CNU200820001865X U CN U200820001865XU CN 200820001865 U CN200820001865 U CN 200820001865U CN 201153213 Y CN201153213 Y CN 201153213Y
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- network equipment
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- 238000007599 discharging Methods 0.000 title claims description 13
- 230000035939 shock Effects 0.000 title 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 claims description 24
- 230000006855 networking Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 7
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- 230000006378 damage Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model discloses a lengthways thunderstroke discharge circuit which belongs to a wireless modem. In the circuit, an A wire and a B wire are respectively connected with the equipment protective ground of network equipment by voltage dependent resistors, and are respectively connected to the network equipment by a lateral capacitor of network equipment and an interface resistor. The network equipment is connected with a user facility which is connected with the ground. The lengthways thunderstroke discharge circuit simplifies the prior thunderstroke discharge circuit and enhances the reliability of the equipment lightningproof performance.
Description
Technical field
The utility model belongs to radio modem (Modem), and the thunder resisting equipment of the networking telephone (Voip) gateway relates in particular to a kind of discharging circuit of vertical thunderbolt.
Background technology
At present, equipment such as Modem and gateway antagonism thunderbolt performance requirement is more and more higher, because these product needed accessing public switched telephone networks (PSTN), that is to say that telephone wire needs the frame could be to local side from the very long distance of open air transmission aloft, therefore when thundering, very easily introduce natural thunder and lightning in user family, cause device damage, cause fire or personal injury, these all can bring unnecessary loss to the user.Therefore, improve the lightning protection properties of products such as Modem and gateway, the user just can relieved use.
In theory, thunderbolt can be divided into horizontal thunderbolt and vertically thunderbolt.Laterally thunderbolt is general only need insert an anti-thunder tube between A, B line, the thunder and lightning high pressure is entered through behind the anti-thunder tube from the A line, return (after perhaps entering the process anti-thunder tube from the B line from the B line, return from the A line), therefore at the discharging of horizontal thunderbolt, mainly be the ability to bear of test anti-thunder tube, it can not cause very major injury to equipment basically.
And vertically thunderbolt is very big to the harm of equipment, the equipment major part that thunderbolt at present damages is all caused by vertical thunderbolt, when especially the thunder and lightning high pressure seals in the main road operating voltage network of equipment, its destructiveness is very serious, such as the situation that strides into main road operating voltage 3.3V network, then may damage all chips.
The method that solves vertically thunderbolt at present has two kinds, and first kind directly jumps to the earth by high tension porcelain capacitance exactly, and this method requires the power supply of equipment will be the supply socket of three cores; Second kind is exactly to jump to equipment protection ground by piezo-resistance; this method then need note increasing the distance between this protection ground and other electric power networks when fabric swatch; thereby avoid because copper sheet is too near; high pressure is climbed to low-pressure section and is gone; in addition; the protection of equipment ground and digitally between need by the high tension porcelain capacitance cross-over connection, but when carrying out lightning test, the copper sheet caloric value on protection ground can be very big.
The utility model content
Problem to be solved in the utility model is a kind of discharging circuit of vertical thunderbolt to be provided, thereby to reduce the infringement that vertically thunderbolt causes equipment.
In order to address the above problem; the utility model discloses a kind of discharging circuit of vertical thunderbolt; in this circuit; A, B line pass through piezo-resistance respectively; be connected to the equipment protection ground of the network equipment; and respectively through network equipment lateral capacitance and interface resistance access network device, the described network equipment links to each other with the subscriber equipment that connects the earth.
Further, above-mentioned subscriber equipment comprises host computer.
Further, the above-mentioned network equipment by in its idle interface partly or entirely, corresponding with the idle interface of described subscriber equipment respectively continuous.
Wherein, the idle interface type of the described network equipment is identical with the idle interface type of described subscriber equipment.
The idle interface type of the described network equipment and subscriber equipment comprises RJ45.
When the idle interface type of the described network equipment and subscriber equipment was RJ45, the idle interface of the described network equipment comprised the 4th, 5,7,8 interfaces; The idle interface of described subscriber equipment comprises the 4th, 5,7,8 interfaces.
The 4th, 5 interfaces of the described network equipment behind interface resistance separately, are parallel to network equipment side first electric capacity respectively, link to each other with described equipment protection ground again;
The 7th, 8 interfaces of the described network equipment behind interface resistance separately, are parallel to network equipment side second electric capacity respectively, link to each other with described equipment protection ground again;
The 4th, 5 interfaces of described subscriber equipment behind interface resistance separately, are parallel to user equipment side first electric capacity respectively, link to each other with the earth again;
The 7th, 8 interfaces of described subscriber equipment behind interface resistance separately, are parallel to user equipment side second electric capacity respectively, link to each other with the earth again.
The interface resistance that the 4th, 5,7,8 interfaces of the described network equipment connect separately, resistance equates;
Described network equipment side first electric capacity and network equipment side second electric capacity, capacitance equates;
The interface resistance that the 4th, 5,7,8 interfaces of described subscriber equipment connect separately, resistance equates;
Described user equipment side first electric capacity and network equipment side second electric capacity, capacitance equates.
Further, in the above-mentioned circuit, can insert a horizontal anti-thunder tube between described A, the B line, the output interface of described horizontal anti-thunder tube links to each other with the networking telephone.
The utility model has been simplified existing thunderbolt discharging circuit, and has improved the reliability of equipment lightning protection properties.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram.
Embodiment
Main design of the present utility model is, consider that Modem links to each other with host computer (perhaps other is connected to the subscriber equipment of the earth) by netting twine with gateway device, therefore the path of releasing of thunder and lightning high pressure can be sent to the big ground of computer chassis by netting twine, thereby realizes the vertically discharging of thunderbolt.
Below in conjunction with the drawings and the specific embodiments the utility model is described in further details.
A kind of thunderbolt discharging circuit, with the prime thunder and lightning high pressure of A, the B line the earth of releasing, its principle as shown in Figure 1, laterally the discharging circuit of thunderbolt is, insert a horizontal anti-thunder tube between A, the B line, two output interfaces of this horizontal anti-thunder tube link to each other with 2,3 interfaces of equipment RJ11 respectively;
Vertically the discharging circuit of thunderbolt is, A, B line are respectively by piezo-resistance Rx
1, Rx
2Access device protection ground, the 4th, 5 interfaces of network equipment RJ45 are one the tunnel by converging behind interface resistance R 1, the R2 respectively simultaneously, receive described equipment protection ground through network equipment side first capacitor C 1 then, similarly, the 7th, 8 interfaces of network equipment RJ45 are one the tunnel by converging behind interface resistance R 3, the R4 respectively, receive described equipment protection ground through network equipment side second capacitor C 2 then; (these several interfaces do not transmit data to the 4th, 5,7 and 8 interfaces of this network equipment, be idle interface) (these several interfaces do not transmit data yet with the 4th, 5,7 and 8 interfaces of user computer RJ45 respectively, being idle interface) correspondence is connected, wherein to converge behind resistance R 5, R6 respectively be one the tunnel to the 4th and 5 interfaces of this user computer RJ45, then through user equipment side first capacitor C 3 be connected to the earth, 7 and 8 interfaces of user computer RJ45 also are that to converge behind resistance R 7, R8 respectively be one the tunnel, are connected to the earth through user equipment side second capacitor C 4 then.
Certainly in the foregoing circuit, the network equipment also can be chosen in its 4th, 5,7,8 interface one or more wantonly and link to each other with equipment protection ground behind interface resistance, electric capacity, same, user computer also can be chosen in its 4th, 5,7,8 interface one or more wantonly and link to each other with the earth behind resistance, electric capacity; And also can be by one or more the corresponding connection in the above-mentioned interface between the network equipment and the user computer.
Wherein resistance R 1～R4 resistance all equates, capacitor C 1, C2 value equate; Resistance R 4～R8 resistance equates that all capacitor C 3, C4 value equate.
Foregoing circuit can be undertaken by following three steps when equipment being struck by lightning experiment:
One, to the equipment under test test of switching on, guarantee equipment this does not have fault before thunderbolt, so that affirmation problem later on.Do not have at the lightning test instrument under the situation of energising the output high-pressure stage of lightning test instrument to be snapped on A line or the B line, the negative pole of lightning test instrument is received on the cabinet of computer.The Ethernet interface of the Ethernet interface of network equipment free time and user computer free time docks by netting twine, and promptly the 4th, 5,7 of equipment RJ45 as shown in fig. 1 are connected with 8 interfaces are corresponding by the 4th, 5,7 of netting twine and user computer RJ45 with 8 interfaces;
Two, start the lightning test instrument, at first adjust the lightning test instrument and be output as 3KV, wait pointer to settle out after, again by the switch experiment of being struck by lightning, after having put once electricity, wait pointer to point to 3KV again and carry out second time discharge again, thereby guarantee the correctness of testing.Operate according to the testing time and the standard of thunderbolt then, check whether equipment under test produces spark or smolder, perhaps phenomenon such as device explosion.And carry out detail record.
Three, whether Authentication devices is normal again after testing, and whether have device failure, if there is not damage, test each road power supply earth impedance again if at first will check, after checking out like this, could power on to equipment, carries out functional test.
By the foregoing description as can be seen, vertical thunderbolt voltage discharging circuit that the utility model provides than in the prior art thunder and lightning high pressure being introduced the effective many of equipment protection ground, has improved reliability of products simultaneously.
Certainly, above-mentioned specific embodiment is not the further qualification to technical solutions of the utility model, and any those of ordinary skill in the art replaced or corresponding improvement the utility model technical characterictic being equal to of being done, still within protection range of the present utility model.
Claims (9)
1, a kind of discharging circuit of vertical thunderbolt is characterized in that,
A, B line be connected to the equipment protection ground of the network equipment, and respectively through network equipment lateral capacitance and interface resistance access network device, the described network equipment link to each other with the subscriber equipment that connects the earth respectively by piezo-resistance.
2, circuit as claimed in claim 1 is characterized in that,
Described subscriber equipment comprises host computer.
3, circuit as claimed in claim 1 is characterized in that,
The described network equipment by in its idle interface partly or entirely, corresponding with the idle interface of described subscriber equipment respectively continuous.
4, circuit as claimed in claim 3 is characterized in that,
The idle interface type of the described network equipment is identical with the idle interface type of described subscriber equipment.
5, circuit as claimed in claim 4 is characterized in that,
The idle interface type of the described network equipment and subscriber equipment comprises RJ45.
6, circuit as claimed in claim 5 is characterized in that,
The idle interface of the described network equipment comprises the 4th, 5,7,8 interfaces;
The idle interface of described subscriber equipment comprises the 4th, 5,7,8 interfaces.
7, circuit as claimed in claim 6 is characterized in that,
The 4th, 5 interfaces of the described network equipment behind interface resistance separately, are parallel to network equipment side first electric capacity respectively, link to each other with described equipment protection ground again;
The 7th, 8 interfaces of the described network equipment behind interface resistance separately, are parallel to network equipment side second electric capacity respectively, link to each other with described equipment protection ground again;
The 4th, 5 interfaces of described subscriber equipment behind interface resistance separately, are parallel to user equipment side first electric capacity respectively, link to each other with the earth again;
The 7th, 8 interfaces of described subscriber equipment behind interface resistance separately, are parallel to user equipment side second electric capacity respectively, link to each other with the earth again.
8, circuit as claimed in claim 7 is characterized in that,
The interface resistance that the 4th, 5,7,8 interfaces of the described network equipment connect separately, resistance equates;
Described network equipment side first electric capacity and network equipment side second electric capacity, capacitance equates;
The interface resistance that the 4th, 5,7,8 interfaces of described subscriber equipment connect separately, resistance equates;
Described user equipment side first electric capacity and network equipment side second electric capacity, capacitance equates.
9, circuit as claimed in claim 1 is characterized in that,
Further insert a horizontal anti-thunder tube between described A, the B line, the output interface of described horizontal anti-thunder tube links to each other with the networking telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820001865XU CN201153213Y (en) | 2008-01-24 | 2008-01-24 | Traverse ligjtning shock discharging circuit` ( |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820001865XU CN201153213Y (en) | 2008-01-24 | 2008-01-24 | Traverse ligjtning shock discharging circuit` ( |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153213Y true CN201153213Y (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820001865XU Expired - Fee Related CN201153213Y (en) | 2008-01-24 | 2008-01-24 | Traverse ligjtning shock discharging circuit` ( |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201153213Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117218A (en) * | 2011-02-17 | 2011-07-06 | 中兴通讯股份有限公司 | Embedded equipment and method for downloading program of programmable logic device in same |
| CN102692934A (en) * | 2011-10-26 | 2012-09-26 | 上海广诚信息技术有限公司 | Temperature control and protection system of network equipment in industrial environment |
| CN112853398A (en) * | 2021-01-28 | 2021-05-28 | 福建德尔科技有限公司 | Hydrogen emptying device |
-
2008
- 2008-01-24 CN CNU200820001865XU patent/CN201153213Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117218A (en) * | 2011-02-17 | 2011-07-06 | 中兴通讯股份有限公司 | Embedded equipment and method for downloading program of programmable logic device in same |
| CN102117218B (en) * | 2011-02-17 | 2014-11-05 | 中兴通讯股份有限公司 | Embedded equipment and method for downloading program of programmable logic device in same |
| CN102692934A (en) * | 2011-10-26 | 2012-09-26 | 上海广诚信息技术有限公司 | Temperature control and protection system of network equipment in industrial environment |
| CN112853398A (en) * | 2021-01-28 | 2021-05-28 | 福建德尔科技有限公司 | Hydrogen emptying device |
| CN112853398B (en) * | 2021-01-28 | 2021-11-16 | 福建德尔科技有限公司 | Hydrogen emptying device |
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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: 20081119 Termination date: 20140124 |