CN203536950U - Combined type solid discharge tube - Google Patents
Combined type solid discharge tube Download PDFInfo
- Publication number
- CN203536950U CN203536950U CN201320562142.8U CN201320562142U CN203536950U CN 203536950 U CN203536950 U CN 203536950U CN 201320562142 U CN201320562142 U CN 201320562142U CN 203536950 U CN203536950 U CN 203536950U
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- sheet metal
- discharge tube
- diode
- solid discharge
- type solid
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Abstract
The utility model discloses a combined type solid discharge tube, comprising a first sheet metal and a second sheet metal. A solid discharge tube chip, a third sheet metal and a bidirectional conduction diode unit are sequentially arranged between the first sheet metal and the second metal. The bidirectional conduction diode unit comprises a first diode set and a second diode set which are respectively composed of two diodes serially connected in sequence. The first diode set is forwardly connected between the third sheet metal and the second sheet metal. The second diode set is backwardly connected between the third sheet metal and the second sheet metal. The combined type solid discharge tube can replace a gas discharge tube, is suitable for not only a voice communication line but also a VDSL broadband communication line, can bear impact of heavy current of 10/1000[mu]s, 100A, improves the safety of communication equipment, and is advantaged by being small in interelectrode capacitance, wide in appliance range, good in stability, high in reliability, simple in mechanical structure and low in manufacturing cost.
Description
Technical field
The utility model relates to the communications field, is specifically related to a kind of composite type solid discharge tube of the Security Unit for VDSL communication.
Background technology
On main frame between telephony switching gear and main cable, be all furnished with Security Unit, in optical fiber roadside to being conventionally also furnished with Security Unit between user.The overvoltage protection device that Security Unit adopts is discharge tube.Before about 2000, the discharge tube of Security Unit is gas discharge tube, and interelectrode capacitance is 3～5PF left and right, for not impact of VDSL communication.But gas discharge tube exists that the velocity of discharge is slow, discharge temp is high, fire-hazardous shortcoming, and there is short shortcoming of chronic leakage, useful life, threaten the safe operation of communication equipment.After about 2000, the discharge tube of Security Unit starts to use solid discharging tube instead by original gas discharge tube.The solid discharging tube of prior art has advantages of that the velocity of discharge is fast, discharge temp is low, there is no chronic leakage, long service life, but the interelectrode capacitance of solid discharging tube is larger, standard is 180PF left and right, and therefore for IDSL, VDSL, communication has a certain impact.Therefore, China, when working out < < YD/694-2004 main frame > > standard, requires a line in the circuits such as VDSL, b line direct-to-ground capacitance to be less than 31PF.But little direct-to-ground capacitance like this, the solid discharging tube of prior art cannot be accomplished, thereby in the VDSL of prior art circuit, have to again reuse gas discharge tube, the problem of therefore still have that the velocity of discharge is slow, discharge temp is high, have chronic leakage, useful life is short, threatens the safe operation of communication equipment.
Utility model content
The technical problems to be solved in the utility model is to provide and a kind ofly can replaces existing gas discharge tube, both be applicable to voice communication line, be applicable to again VDSL wide-band link, can bear the heavy current impact of 10/1000 μ s, 100A, improve the fail safe of communication equipment, interelectrode capacitance is little, applied widely, good stability, reliability is high, mechanical structure is simple, the composite type solid discharge tube of low cost of manufacture.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of composite type solid discharge tube, comprise the first sheet metal and the second sheet metal, between described the first sheet metal and the second sheet metal, be provided with successively solid discharge die, the 3rd sheet metal and two-way admittance diode, described two-way admittance diode comprises the first diode group and the second diode group, described the first diode group and the second diode group form by two diodes that are connected in series successively, and two diode forward of described the first diode group are connected between the 3rd sheet metal and the second sheet metal, two diode reverse of described the second diode group are connected between the 3rd sheet metal and the second sheet metal.
Further improvement as technique scheme:
Described the first sheet metal, the second sheet metal, the 3rd sheet metal three layout that is parallel to each other.
The utlity model has following advantage: solid discharge die of the present utility model is connected by the 3rd sheet metal with two-way admittance diode, utilize the interelectrode capacitance of solid discharge die to connect with the interelectrode capacitance of two-way admittance diode, thereby obtain being less than the capacitance of 31PF, meet the electric capacity demand of communication line, can replace existing gas discharge tube, both be applicable to voice communication line, be applicable to again VDSL wide-band link, can bear 10/1000 μ s, the heavy current impact of 100A, improve the fail safe of communication equipment, there is interelectrode capacitance little, applied widely, good stability, reliability is high, mechanical structure is simple, the advantage of low cost of manufacture.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the circuit theory schematic diagram of the utility model embodiment.
Fig. 3 is the Security Unit circuit theory schematic diagram of application the utility model embodiment.
Marginal data: 1, the first sheet metal; 2, the second sheet metal; 3, solid discharge die; 4, the 3rd sheet metal; 5, two-way admittance diode; 51, the first diode group; 52, the second diode group.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection range of the present utility model is made to more explicit defining.
As depicted in figs. 1 and 2, the composite type solid discharge tube of the present embodiment comprises the first sheet metal 1 and the second sheet metal 2, P1 in first sheet metal 1(Fig. 2) the P2 and in second sheet metal 2(Fig. 2), be provided with successively solid discharge die 3, the 3rd sheet metal 4 and two-way admittance diode 5, two-way admittance diode 5 comprises the first diode group 51 and the second diode group 52, the first diode group 51 and the second diode group 52 form by two diodes that are connected in series successively, and two diode forward of the first diode group 51 are connected between the 3rd sheet metal 4 and the second sheet metal 2, two diode reverse of the second diode group 52 are connected between the 3rd sheet metal 4 and the second sheet metal 2.The solid discharge die 3 of the present embodiment is connected by the 3rd sheet metal 4 with two-way admittance diode 5, utilize the interelectrode capacitance of solid discharge die 3 to connect with the interelectrode capacitance of two-way admittance diode 5, thereby obtain being less than the capacitance of 31PF, meet the electric capacity demand of communication line, can replace existing gas discharge tube, both be applicable to voice communication line, be applicable to again VDSL wide-band link, can bear 10/1000 μ s, the heavy current impact of 100A, improve the fail safe of communication equipment, there is interelectrode capacitance little, applied widely, good stability, the advantage that reliability is high.
In the present embodiment, the first sheet metal 1, the second sheet metal 2, the 3rd sheet metal 4 threes layout that is parallel to each other, mechanical structure is simple, low cost of manufacture.In the present embodiment, the first sheet metal 1, the second sheet metal 2, the 3rd sheet metal 4 are circle and size is identical, the diameter of the first sheet metal 1, the second sheet metal 2, the 3rd sheet metal 4 can be selected 4～5.5mm as required, the entire length of the present embodiment can be selected 2～6mm as required, product that can also can combinations produce plurality of specifications by different diameters and length, such as making Φ 4 mm * 2 mm, Φ 5.5 mm * 4 mm, Φ 5.5 mm * 6 mm etc., apply more flexible.
As shown in Figure 3, the Security Unit of application the present embodiment composite type solid discharge tube adopts the mode of open circuit alarm, device 2AS1 wherein, 2AS2 is the composite type solid discharge tube of the present embodiment, splicing ear a, b is used for connecting service cable, splicing ear a ', b ' is for connecting switching equipment, K1, K2 is used for cutting off invasion power supply, composite type solid discharge tube 2AS1 and composite type solid discharge tube 2AS2 are for entering invasion overvoltage on ground, thermistor PTC1, thermistor PTC2 is used for stopping that invasion electric current enters switching equipment, light-emitting diode D1 is for display light electric alarm, K3, K4 makes light-emitting diode D1 send alarm signal for closure when power supply is invaded.This Security Unit comprises two groups of overvoltages, current foldback circuit.First group is a line protection circuit, K1, K3, thermistor PTC1 and composite type solid discharge tube 2AS1, consists of; First group is b line protection circuit, K2, K4, thermistor PTC2 and composite type solid discharge tube 2AS2, consists of.
The foregoing is only preferred implementation of the present utility model, protection range of the present utility model is not limited in above-mentioned execution mode, and every technical scheme that belongs to the utility model principle all belongs to protection range of the present utility model.For a person skilled in the art, some improvements and modifications of carrying out under the prerequisite that does not depart from principle of the present utility model, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (2)
1. a composite type solid discharge tube, comprise the first sheet metal (1) and the second sheet metal (2), it is characterized in that: between described the first sheet metal (1) and the second sheet metal (2), be provided with successively solid discharge die (3), the 3rd sheet metal (4) and two-way admittance diode (5), described two-way admittance diode (5) comprises the first diode group (51) and the second diode group (52), described the first diode group (51) and the second diode group (52) form by two diodes that are connected in series successively, and two diode forward of described the first diode group (51) are connected between the 3rd sheet metal (4) and the second sheet metal (2), two diode reverse of described the second diode group (52) are connected between the 3rd sheet metal (4) and the second sheet metal (2).
2. composite type solid discharge tube according to claim 1, is characterized in that: described the first sheet metal (1), the second sheet metal (2), the 3rd sheet metal (4) the three layout that is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562142.8U CN203536950U (en) | 2013-09-11 | 2013-09-11 | Combined type solid discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562142.8U CN203536950U (en) | 2013-09-11 | 2013-09-11 | Combined type solid discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536950U true CN203536950U (en) | 2014-04-09 |
Family
ID=50423126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320562142.8U Expired - Fee Related CN203536950U (en) | 2013-09-11 | 2013-09-11 | Combined type solid discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783328A (en) * | 2018-07-31 | 2020-02-11 | 立积电子股份有限公司 | Anti-parallel diode device |
-
2013
- 2013-09-11 CN CN201320562142.8U patent/CN203536950U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783328A (en) * | 2018-07-31 | 2020-02-11 | 立积电子股份有限公司 | Anti-parallel diode device |
| CN110783328B (en) * | 2018-07-31 | 2022-09-06 | 立积电子股份有限公司 | Anti-parallel diode device |
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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: 20140409 Termination date: 20190911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |