CN202817746U - RS-232 serial port lightning protection device of large power and flexible connection - Google Patents
RS-232 serial port lightning protection device of large power and flexible connection Download PDFInfo
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- CN202817746U CN202817746U CN 201220404960 CN201220404960U CN202817746U CN 202817746 U CN202817746 U CN 202817746U CN 201220404960 CN201220404960 CN 201220404960 CN 201220404960 U CN201220404960 U CN 201220404960U CN 202817746 U CN202817746 U CN 202817746U
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Abstract
Disclosed is an RS-232 serial port lightning protection device of large power and flexible connection, comprising a nine-pin RS-232 serial port male joint, and a nine-pin RS-232 serial port female joint, wherein the nine-pin RS-232 serial port male joint and the nine-pin RS-232 serial port female joint are connected via four flexible conductors; the cavity of the nine-pin RS-232 serial port male joint is provided with a dipolar ceramic gas discharge tube and a tripolar ceramic gas discharge tube; the dipolar ceramic gas discharge tube is connected to the lightning protection ground PE; the cavity of the nine-pin RS-232 serial port female joint is internally provided with three metal oxide-film resistors and three transient voltage inhibition diodes; and one of transient voltage inhibition diodes is connected to the lightning protection ground PE. The nine-pin RS-232 serial port male joint and the nine-pin RS-232 serial port female joint are connected via flexible conductors, thereby capable of being bent and thus well overcoming the limits generated when the RS-232 serial port lightning protection device is installed. Therefore, the installation and usage can be facilitated.
Description
Technical field
The utility model relates to data communication field, communication interface lightning protection device especially, specifically a kind of high-power, RS-232 serial ports lightning protection device of being flexible coupling.
Background technology
At present, in order to protect the RS-232 serial ports of machine room communication equipment, generally all can before the RS-232 of communication equipment serial ports, increase a RS-232 serial ports lightning protection device.But the lightning protection capability of existing this class serial ports lightning protection device is relatively poor; when being applied to the more special occasion of this electromagnetic environment in picture C net mobile base station; this class RS-232 serial ports lightning protection device often bears and does not live excessive lightning surge electric current; not only can not effectively protect the RS-232 serial ports of communication equipment; serial ports lightning protection device itself is also easily by permanent puncture, short circuit, damage; cause monitoring of tools to interrupt; become a barrier point on the monitoring of tools transmission channel; need the attendant before to go immediately to change and process, this is all totally unfavorable to maintenance work and network security.In addition, present RS-232 serial ports lightning protection device is a rigid integral body, length is generally all about 6 centimetres, add original monitoring serial port plug, total length reaches about 10 centimetres, and the RS-232 serial ports of the equipment that has is built-in, and for example Ai Mo gives birth to the M500S Switching Power Supply, its serial ports space outerpace is limited, and present serial ports lightning protection device can't be installed at all.And the equipment that has is such as middle permanent SM60 Switching Power Supply, and the RS-232 serial ports exposes, but after plugging total length and reach 10 centimetres RS-232 serial ports lightning protection device and monitoring serial port plug, not only not attractive in appearance, and because protruded length is long, be not intended to touch off or break, poor stability by the personnel of entering the room easily.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, provide a kind of high-power, be flexible coupling, safety and the strong RS-232 serial ports lightning protection device of applicability.
The technical solution of the utility model is:
A kind of high-power, the RS-232 serial ports lightning protection device that is flexible coupling, it comprises a nine kinds of needles RS-232 serial ports male, a nine kinds of needles RS-232 serial ports female, link to each other by four flexible conductors between nine kinds of needles RS-232 serial ports male and the nine kinds of needles RS-232 serial ports female, four flexible conductors are respectively the second stitch signal and connect wire, the GND signal ground connects wire, the 3rd stitch signal connects wire and is connected wire with lightning protection, be provided with two utmost point ceramic gas discharge tubes and three utmost point ceramic gas discharge tubes in the cavity of nine kinds of needles RS-232 serial ports male, two utmost point ceramic gas discharge tubes are connected to lightning proof ground PE, be provided with three metal oxidation resistances and three transient voltage suppressor diodes in the cavity of nine kinds of needles RS-232 serial ports female, one of them transient voltage suppressor diode is connected to lightning proof ground PE.
Lightning protection connection wire of the present utility model is drawn wire by lightning protection and is connected with opening copper nose.
The minimum break-down voltage of transient voltage suppressor diode of the present utility model is 19V, and it is 27.7V that maximum is clamped down on voltage, and its surge relieving capacity reaches other 1500W of power supply level.
The dc breakdown voltage of two utmost point ceramic gas discharge tubes of the present utility model and three utmost point ceramic gas discharge tubes is 90V, and discharge capability is 10KA.
Metal oxidation resistance of the present utility model is the metal oxidation resistance of 4.7 Ω/2W.
The beneficial effects of the utility model:
The first order lightning protection component of RS-232 serial ports lightning protection device of the present utility model, use protective capacities all to reach two utmost point ceramic gas discharge tubes and three utmost point ceramic gas discharge tubes of 10KA, and present serial ports lightning protection device mostly uses protective capacities only to be the ceramic gas discharge tube of 5KA.In its second level lightning protection component, use model to be 1.5KE20CA, protective capacities reaches the transient voltage suppressor diode of 1500W.And present serial ports lightning protection device mostly uses protective capacities only to be the transient voltage suppressor diode of 600W.Therefore the protective capacities of this RS-232 serial ports lightning protection device reaches more than 2 times of present common serial ports lightning protection device; so it can not only protect the RS-232 serial ports of communication equipment better; and RS-232 serial ports lightning protection device itself also is not easy to damage, thereby can ensure better the safe operation of communication network.
All adopt flexible conductor to connect between nine kinds of needles RS-232 serial ports male of the present utility model and the nine kinds of needles RS-232 serial ports female, can bend, thereby can eliminate well the limitation that exists when present RS-232 serial ports lightning protection device is installed, be convenient to install and use.
The nine kinds of needles RS-232 serial ports male of RS-232 serial ports lightning protection device Application standard of the present utility model is connected nine kinds of needles RS-232 serial ports female as lightning protection component installation, connection and fixing carrier with standard, all lightning protection components all reasonably are installed in the cavity of the nine kinds of needles RS-232 serial ports male of standard and nine kinds of needles RS-232 serial ports female, therefore need not to design in addition, make special RS-232 serial ports lightning protection device shell.
RS-232 serial ports lightning protection device of the present utility model does not need the PCB printed circuit board (PCB), therefore makes easily, and is with low cost, has very high cost performance.
Overvoltage of the present utility model punctures first be used to two utmost point ceramic gas discharge tubes of most of energy of releasing or three utmost point ceramic gas discharge tubes, surge current is used for catabiotic metal oxidation resistance through three afterwards, three transient voltage suppressor diodes that are used for discharging dump energy of last residual voltage moment puncture.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Number in the figure: 1-nine kinds of needles RS-232 serial ports male, 2-nine kinds of needles RS-232 serial ports female, 3-the second stitch signal connects wire, the 4-GND signal ground connects wire, 5-the 3rd stitch signal connects wire, the 6-lightning protection connects wire, the 7-lightning protection is drawn wire, 8-opening copper nose, 9-three utmost point ceramic gas discharge tubes, 10-two utmost point ceramic gas discharge tubes, 11-lightning proof ground PE, the 12-metal oxidation resistance, the 13-transient voltage suppressor diode, 14-male the second stitch, 15-male the 5th stitch, 16-male the 3rd stitch, 17-female the second stitch, 18-female the 5th stitch, 19-female the 3rd stitch.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, the utility model is high-power, the RS-232 serial ports lightning protection device that is flexible coupling, comprise the nine kinds of needles RS-232 serial ports male 1 of standard and the nine kinds of needles RS-232 serial ports female 2 of standard, link to each other by four flexible conductors between the nine kinds of needles RS-232 serial ports female 2 of the nine kinds of needles RS-232 serial ports male 1 of standard and standard, four wires are respectively the 2nd stitch signal and connect wire 3, the GND signal ground connects wire 4, the 3rd stitch signal connects wire 5 and is connected wire 6 with lightning protection, lightning protection connection wire 6 is drawn wire 7 by lightning protection and is connected with opening copper nose 8, be provided with two utmost point ceramic gas discharge tubes 10 and three utmost point ceramic gas discharge tubes 9 in the nine kinds of needles RS-232 serial ports male 1 of standard, one end of two utmost point ceramic gas discharge tubes 10 is connected to lightning proof ground PE11, be provided with three metal oxidation resistances 12 and three transient voltage suppressor diodes 13 in the nine kinds of needles RS-232 serial ports female 2 of standard, an end of one of them transient voltage suppressor diode 13 also is connected to lightning proof ground PE11.In order to realize being flexible coupling, this RS-232 serial ports lightning protection device does not use PCB printed circuit board (PCB) and whole shell, but utilize nine kinds of needles RS-232 serial ports male and the nine kinds of needles RS-232 serial ports female of existing standard, all electronic components are contained in respectively among the cavity of nine kinds of needles RS-232 serial ports female 2 inside of the nine kinds of needles RS-232 serial ports male 1 of a standard and a standard.Consider the size of component size and the directivity that lightning protection has; in the nine kinds of needles RS-232 of standard serial ports male 1, lay two utmost point ceramic gas discharge tubes 10 and three utmost point ceramic gas discharge tubes 9, in the nine kinds of needles RS-232 of standard serial ports female 2, lay three metal oxidation resistances 12 and three transient voltage suppressor diodes 13.Because at present the RS-232 serial ports of communication equipment generally communicates by " data transmissions ", " data receiver ", " signal ground " three holding wires, so need use the 2nd stitch 14, the 3rd stitch 16 and the 5th stitch 15 in the nine kinds of needles RS-232 serial ports male 1 and the 2nd stitch 17, the 3rd stitch 19 and the 5th stitch 18 in the nine kinds of needles RS-232 serial ports female 2.In nine kinds of needles RS-232 serial ports male 1 inside, according to Fig. 2, weld corresponding lightning protection component, and correctly be welded to the 2nd stitch 14, the 3rd stitch 16 and the 5th stitch 15, in nine kinds of needles RS-232 serial ports female 2 inside, according to Fig. 2, weld corresponding lightning protection component, and correctly be welded to the 2nd stitch 17, the 3rd stitch 19 and the 5th stitch 18, and then with four flexible conductors respectively with the circuit in nine kinds of needles RS-232 serial ports male 1 and the nine kinds of needles RS-232 serial ports female 2, couple together according to Fig. 2, weld at last lightning protection line 7, and do copper nose 8, through above several steps, a complete RS-232 serial ports lightning protection device has just been made.Because the protective effect of RS-232 serial ports lightning protection device has directivity; when reality is used; the male 1 of RS-232 serial ports lightning protection device must be connected to monitoring cable; and the female 2 of RS-232 serial ports lightning protection device must be connected on the RS-232 serial ports of protected equipment, so just can play the effect of the equipment of serial that adequately protects.
Fig. 2 is the schematic diagram of this RS-232 serial ports arrester circuit.In the design, adopt the two-stage lightning protection measures, the first order adopts ceramic gas discharge tube, is used in combination by two utmost point ceramic gas discharge tubes 10 and three utmost point ceramic gas discharge tubes 9.In this RS-232 serial ports lightning protection device, selecting dc breakdown voltage is 90V, and discharge capability is two utmost point ceramic gas discharge tubes and three utmost point ceramic gas discharge tubes of 10KA (8/20 μ s).
Three transient voltage suppressor diodes 13 and three resistance 12 are used in the second level of this RS-232 serial ports lightning protection device, further clamp down on overvoltage and leakage current.Transient voltage suppressor diode has unidirectional and two-way dividing, and three transient voltage suppressor diodes 13 in this RS-232 serial ports lightning protection device are selected the two-way type transient voltage suppressor diode, and model is 1.5KE20CA.Its minimum break-down voltage is 19V, and it is 27.7V that maximum is clamped down on voltage, and its surge relieving capacity reaches other 1500W of power supply level.And the transient voltage suppressor diode that uses in the general serial ports lightning protection device, the surge relieving capacity only is 600W.Three resistance 12 among Fig. 2 are selected 4.7 Ω/2W metal oxidation resistance.When overvoltage is impacted to the RS-232 serial ports of equipment by the serial ports line, ceramic gas discharge tube two utmost point ceramic gas discharge tubes 10 in the RS-232 serial ports lightning protection device or three utmost point ceramic gas discharge tubes 9 at first can breakdown generation arc discharges, most of energy of releasing, when next surge current is through three resistance 12, can consume part energy again, last residual voltage with the 13 moments puncture of three transient voltage suppressor diodes, discharges remaining energy again.Voltage between the voltage of 17 pairs of the 5th stitch 18 of the 2nd stitch in the serial ports lightning protection device female 2, the voltage of 19 pairs of the 5th stitch 18 of the 3rd stitch and 18 couples of lightning proof ground PE11 of the 5th stitch all can be clamped within the very low safe range, thereby plays the effect of protection equipment of serial.
The utility model does not relate to partly all, and the prior art that maybe can adopt same as the prior art is realized.
Claims (5)
- One kind high-power, the RS-232 serial ports lightning protection device that is flexible coupling, it is characterized in that it comprises a nine kinds of needles RS-232 serial ports male (1), a nine kinds of needles RS-232 serial ports female (2), link to each other by four flexible conductors between nine kinds of needles RS-232 serial ports male (1) and the nine kinds of needles RS-232 serial ports female (2), four flexible conductors are respectively the second stitch signal and connect wire (3), the GND signal ground connects wire (4), the 3rd stitch signal connects wire (5) and is connected wire (6) with lightning protection, be provided with two utmost point ceramic gas discharge tubes (10) and three utmost point ceramic gas discharge tubes (9) in the cavity of nine kinds of needles RS-232 serial ports male (1), two utmost point ceramic gas discharge tubes (10) are connected to lightning proof ground PE(11), be provided with three metal oxidation resistances (12) and three transient voltage suppressor diodes (13) in the cavity of nine kinds of needles RS-232 serial ports female (2), one of them transient voltage suppressor diode is connected to lightning proof ground PE(11).
- 2. high-power, the RS-232 serial ports lightning protection device that is flexible coupling according to claim 1 is characterized in that described lightning protection connects wire (6) and draws wire (7) by lightning protection and be connected with opening copper nose (8).
- 3. high-power, the RS-232 serial ports lightning protection device that is flexible coupling according to claim 1, the minimum break-down voltage that it is characterized in that described transient voltage suppressor diode (13) is 19V, it is 27.7V that maximum is clamped down on voltage, and its surge relieving capacity reaches other 1500W of power supply level.
- 4. high-power, the RS-232 serial ports lightning protection device that is flexible coupling according to claim 1 is characterized in that the dc breakdown voltage of described two utmost point ceramic gas discharge tubes (10) and three utmost point ceramic gas discharge tubes (9) is 90V, and discharge capability is 10KA.
- 5. high-power, the RS-232 serial ports lightning protection device that is flexible coupling according to claim 1 is characterized in that described metal oxidation resistance (12) is the metal oxidation resistance of 4.7 Ω/2W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404960 CN202817746U (en) | 2012-08-15 | 2012-08-15 | RS-232 serial port lightning protection device of large power and flexible connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404960 CN202817746U (en) | 2012-08-15 | 2012-08-15 | RS-232 serial port lightning protection device of large power and flexible connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817746U true CN202817746U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404960 Expired - Lifetime CN202817746U (en) | 2012-08-15 | 2012-08-15 | RS-232 serial port lightning protection device of large power and flexible connection |
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| CN (1) | CN202817746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117810693A (en) * | 2024-03-01 | 2024-04-02 | 成都信息工程大学 | Novel antenna feeder direct lightning striking/induction lightning protection device based on waveguide |
-
2012
- 2012-08-15 CN CN 201220404960 patent/CN202817746U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117810693A (en) * | 2024-03-01 | 2024-04-02 | 成都信息工程大学 | Novel antenna feeder direct lightning striking/induction lightning protection device based on waveguide |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |