CN203734304U - Microminiature two-level protection channel surge protector - Google Patents
Microminiature two-level protection channel surge protector Download PDFInfo
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- CN203734304U CN203734304U CN201420110207.XU CN201420110207U CN203734304U CN 203734304 U CN203734304 U CN 203734304U CN 201420110207 U CN201420110207 U CN 201420110207U CN 203734304 U CN203734304 U CN 203734304U
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- microwave cavity
- coaxial fitting
- surge
- surge protector
- microminiature
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- 230000001012 protector Effects 0.000 title claims abstract description 31
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000003389 potentiating effect Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 230000001629 suppression Effects 0.000 claims description 5
- 230000001052 transient effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003913 materials processing Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a microminiature two-level protection channel surge protector used for protection of a communication cable. The surge protector includes coaxial joints, a microwave cavity, a microstrip circuit board and a casing. The microstrip circuit board includes a microstrip printed circuit board, a gas discharge tube, a TSS tube or a TVS tube. The overall dimension of the product is 15 Phi. The beneficial effects of the microminiature two-level protection channel surge protector are that the surge protector has dual protection functions of radio-frequency signals and DC signals and is compact in outline.
Description
Technical field
The utility model relates to the Surge Protector of telecommunication cable, relates in particular to a kind of microminiature secondary protection channel Surge Protector.
Background technology
Railway special communication net is railway important infrastructure, Railway digital dispatch system is the digitizer of railway communication transmission system, it is the personal communication system that is specifically designed to organization of rail transport, dispatch control and organization of production, that railway is realized centralized and unified commander, guarantee driving safety, the important means of raising conevying efficiency and enterprise management level.Railway digital dispatch system is widely used in TD, freight scheduling specialist, power supply dispatching, work business scheduling, other professional dispatching patcher, the field direct connection telephone of standing, the interval business such as call forwarding, recording of speedily carrying out rescue work.
But digital dispatching system is to adopt large scale integrated chip, modularized design, large scale integrated chip withstand voltage not high, is damaged by overvoltage very easily, and even the serious scaling loss of whole device, cause communication terminal and equipment work paralysis, have a strong impact on traffic safety.The carrying out surge protection of digital dispatching system equipment is just particularly important for this reason.
Adjusting between integral cabinet each passage spacing up and down due to number is 25 × 25mm; Surge Protector overall dimension is in the market all large than this, cannot be directly installed on number and adjust on integral cabinet, all will be by switching; so, can increase signal transmission attenuation, can not find again suitable installation site.
Summary of the invention
In order to solve the problems of the prior art, the utility model provides a kind of microminiature secondary protection channel Surge Protector, to solve the not enough problem that existing protector overall dimension is large.
The technical solution of the utility model is: a kind of microminiature secondary protection channel Surge Protector, be made up of surge end coaxial fitting, protection end coaxial fitting, microwave cavity, micro belt board and shell, described surge end coaxial fitting, protection end coaxial fitting are arranged on respectively the two ends of described microwave cavity bottom; Described microwave cavity is made up of microwave cavity bottom and shell; Described micro belt board is contained in described microwave cavity to realize inner wire and micro-heart yearn good contact with printed board of surge end coaxial fitting; The bottom of being close to described microwave cavity in large area of described micro belt board is also fastened on described microwave cavity; On described micro belt board, design two-stage protection circuit.
As further improvement of the utility model: the switching space that described surge end coaxial fitting, protection end coaxial fitting and described microwave cavity bottom are the integrated design to reduce coaxial fitting and microwave cavity.
As further improvement of the utility model: the surge end that described surge end coaxial fitting is signal; The equipment end that described protection end coaxial fitting is signal.
As further improvement of the utility model: the length and width size of described micro belt board is not more than 18mm × 12.7mm, the length and width of described microwave cavity bottom are of a size of 18mm × 13mm.
As further improvement of the utility model: the two-stage protection circuit on described micro belt board, the first order is three grades of GDT ceramic gas discharge tubes or the potent discharge tube of SPG, the two ends of discharge tube are welded in respectively on printed board heart yearn and signal ground, and a middle utmost point is welded in thunder and lightning on (PE); The second level is TVS Transient Suppression Diode or ESD electrostatic protection device or TSS semiconductor discharge tube, and the two poles of the earth of TVS pipe or ESD device or TSS pipe are welded in respectively between printed board heart yearn and signal ground.
The beneficial effect of the utility model tool:
1, by coaxial fitting shell and microwave cavity bottom integrated design, joint outer conductor and microwave cavity form with a materials processing, have increased the intensity of product, have increased again the axiality of product, thereby have improved the microwave transmission performance of product.Reduced the connection space of coaxial fitting and microwave cavity, for product miniaturization provides condition simultaneously.
2, coaxial fitting designs at the two ends of microwave cavity, is respectively used to surge end and the equipment end of signal.Two coaxial fittings are by relevant criterion design, can be L9, BNC, Fl10, F, SMA,, the various terminal such as TNC, increased the diversity of product.
3, miniaturized design is all pressed in micro belt board and microwave cavity bottom, is less than or equal to respectively 18 × 12.7 and 18 × 13, realizes the microminiaturization of Surge Protector.
4, high frequency printed board material is selected in the micro-band printed board on micro belt board, with the characteristic impedance of Microwave simulation Software for Design, in debugging, carry out again impedance-compensated, to realize the optimum Match of microwave transmission.
5, micro belt board is contained in microwave cavity, and the bottom of being close to microwave cavity in large area of micro belt board is fastening with four brass screws.Realize micro belt board and the coaxial fitting of surge end and equipment end and the good contact of microwave cavity.
6, on micro belt board, there is two-stage protection circuit; the first order is three grades of GDT ceramic gas discharge tubes or the potent discharge tube of SPG; the two ends of discharge tube are welded in respectively on printed board heart yearn and signal ground, and a middle utmost point is welded in thunder and lightning, and (PE) is upper, has increased the thunder and lightning tolerance of Surge Protector.The second level is TVS Transient Suppression Diode or ESD electrostatic protection device or TSS semiconductor discharge tube, and the two poles of the earth of TVS pipe or ESD device or TSS pipe are welded in respectively between printed board heart yearn and signal ground, have improved the protector precision of Surge Protector.
7, product design is designed and sized to φ 15mm, makes secondary protection Surge Protector as an adapter, can be directly installed on number and adjusts on integral cabinet.So, reduce the signal transmission attenuation that transit cable brings, saved again installing space and construction cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model example 1;
Fig. 2 is micro belt board schematic diagram of the present utility model;
Fig. 3 is schematic internal view of the present utility model;
Fig. 4 is profile schematic diagram of the present utility model;
Fig. 5 is the structural representation of the utility model example 2.
Embodiment
The microminiature secondary protection channel Surge Protector by embodiment, the utility model being provided below in conjunction with accompanying drawing is described further.
A kind of microminiature secondary protection channel Surge Protector, be made up of surge end coaxial fitting, protection end coaxial fitting, microwave cavity, microwave cavity, micro belt board and shell, described surge end coaxial fitting, protection end coaxial fitting are arranged on respectively the two ends of described microwave cavity bottom; Described microwave cavity is made up of microwave cavity bottom and shell; Described micro belt board is contained in described microwave cavity to realize inner wire and micro-heart yearn good contact with printed board of surge end coaxial fitting; The bottom of being close to described microwave cavity in large area of described micro belt board is also fastened on described microwave cavity; On described micro belt board, design two-stage protection circuit.
The switching space that described surge end coaxial fitting, protection end coaxial fitting and described microwave cavity bottom are the integrated design to reduce coaxial fitting and microwave cavity.
The surge end that described surge end coaxial fitting is signal; The equipment end that described protection end coaxial fitting is signal.
The length and width size of described micro belt board is not more than 18mm × 12.7mm, and the length and width of described microwave cavity bottom are of a size of 18mm × 13mm.
Two-stage protection circuit on described micro belt board, the first order is three grades of GDT ceramic gas discharge tubes or the potent discharge tube of SPG, and the two ends of discharge tube are welded in respectively on printed board heart yearn and signal ground, and a middle utmost point is welded in thunder and lightning on (PE); The second level is TVS Transient Suppression Diode or ESD electrostatic protection device or TSS semiconductor discharge tube, and the two poles of the earth of TVS pipe or ESD device or TSS pipe are welded in respectively between printed board heart yearn and signal ground.
Embodiment 1
Microminiature secondary protection channel Surge Protector structure in the present embodiment as shown in Figure 1, is made up of surge end coaxial fitting 1 (BNC-K), protection end coaxial fitting 2 (BNC-J), microwave cavity bottom 3, microwave cavity 4, micro belt board 5, shell 6.
The outer conductor of coaxial fitting 1,2 and microwave cavity bottom 3 adopts integrated designs, forms with a materials processing.So, increase the intensity of product, had the axiality that has increased product, thereby improved the microwave transmission performance of product.
The correlated parts of surge end coaxial fitting 1 (BNC-K), protection end coaxial fitting 2 (BNC-J) is pressed IEC60169-8 standard design.
Product casing 6 is designed to the circle of φ 15mm, circular housing 6 and microwave cavity bottom 3 composition microwave cavities 4.Microwave cavity bottom is 18 × 13 by miniaturized design, makes Surge Protector more small-sized.
Micro belt board 5 as shown in Figure 2, is made up of micro-band printed board 7, micro-band heart yearn 8, signal ground 9, first order protection GDT ceramic gas discharge tube or the potent discharge tube 10 of SPG, second level protection TVS Transient Suppression Diode or ESD electrostatic protection device or TSS semiconductor discharge tube.The two ends of discharge tube 10 are welded on respectively on micro-band heart yearn 8 and signal ground 9 of printed board, and a middle utmost point is connected with thunder and lightning ground (PE) line.One utmost point of second level TVS pipe or ESD device or TSS fulgurite 11 is connected with printed board heart yearn 8, and another utmost point is connected with the signal ground 9 of printed board.Thunder and lightning macro-energy is by first order discharge tube 10 ground of releasing, thereby improved widely the thunder and lightning tolerance of Surge Protector.No matter be large thunder energy, or little thunder energy, its second level TVS pipe or ESD device or TSS fulgurite 11 all can start, and the residual voltage of second level TVS pipe or ESD device or TSS fulgurite 11 is very low, has so just improved widely the protection precision of Surge Protector.
Micro belt board 5 is placed in microwave cavity 4 as shown in Figure 3, is placed between microwave cavity bottom 3 and two ends coaxial fitting inner wire 12,13.High frequency material is selected in micro-band printed board 7, adopts two-sided microwave printed board, and front is microwave track, and reverse side is in large area.Micro-micro-band heart yearn 8, signal ground 9 use Microwave simulation softwares with printed board 7 fronts carry out design characteristics impedance, in debugging, carry out again impedance-compensated, to realize the optimum Match of microwave transmission.Micro-being close to microwave cavity bottom 3 in large area with printed board 7 reverse side, being connected firmly with signal ground 9 and microwave cavity bottom 3 in large area micro belt board 5 by 4 screws, realize signal ground 9, the microwave cavity 4 of micro belt board 5, the good connection of joint outer conductor, strengthened the antijamming capability of product.The inner wire 12,13 of two ends coaxial fitting 1,2 and micro belt board heart yearn 8 firm welding, realize effective transmission of signal.
Embodiment 2
In the present embodiment microminiature secondary protection channel Surge Protector structure as shown in Figure 5, formed by surge end coaxial fitting 1 (L9-K), protection end coaxial fitting 2 (L9-J), microwave cavity bottom 3, microwave cavity 4, micro belt board 5, shell 6.
Surge end coaxial fitting 1 (L9-K) in the present embodiment, the correlated parts of protection end coaxial fitting 2 (L9-J) are pressed IEC60169-13 standard design, and other are with embodiment 1.
Surge end coaxial fitting 1, protection end coaxial fitting 2 will be designed the Surge Protector of different connection form, thereby realize the diversity of Surge Protector by different standards by that analogy.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. a microminiature secondary protection channel Surge Protector, it is characterized in that: be made up of surge end coaxial fitting, protection end coaxial fitting, microwave cavity, micro belt board and shell, described surge end coaxial fitting, protection end coaxial fitting are arranged on respectively the two ends of described microwave cavity bottom; Described microwave cavity is made up of microwave cavity bottom and shell; Described micro belt board is contained in described microwave cavity to realize inner wire and micro-heart yearn good contact with printed board of surge end coaxial fitting; The bottom of being close to described microwave cavity in large area of described micro belt board is also fastened on described microwave cavity; On described micro belt board, design two-stage protection circuit.
2. microminiature secondary protection channel Surge Protector according to claim 1, is characterized in that: the switching space that described surge end coaxial fitting, protection end coaxial fitting and described microwave cavity bottom are the integrated design to reduce coaxial fitting and microwave cavity.
3. microminiature secondary protection channel Surge Protector according to claim 1, is characterized in that: the surge end that described surge end coaxial fitting is signal; The equipment end that described protection end coaxial fitting is signal.
4. microminiature secondary protection channel Surge Protector according to claim 1, is characterized in that: the length and width size of described micro belt board is not more than 18mm × 12.7mm, and the length and width of described microwave cavity bottom are of a size of 18mm × 13mm.
5. microminiature secondary protection channel Surge Protector according to claim 1, it is characterized in that: the two-stage protection circuit on described micro belt board, the first order is three grades of GDT ceramic gas discharge tubes or the potent discharge tube of SPG, the two ends of discharge tube are welded in respectively on printed board heart yearn and signal ground, and a middle utmost point is welded in thunder and lightning on (PE); The second level is TVS Transient Suppression Diode or ESD electrostatic protection device or TSS semiconductor discharge tube, and the two poles of the earth of TVS pipe or ESD device or TSS pipe are welded in respectively between printed board heart yearn and signal ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110207.XU CN203734304U (en) | 2014-03-12 | 2014-03-12 | Microminiature two-level protection channel surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110207.XU CN203734304U (en) | 2014-03-12 | 2014-03-12 | Microminiature two-level protection channel surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203734304U true CN203734304U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110207.XU Expired - Lifetime CN203734304U (en) | 2014-03-12 | 2014-03-12 | Microminiature two-level protection channel surge protector |
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| Country | Link |
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| CN (1) | CN203734304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410056A (en) * | 2014-11-24 | 2015-03-11 | 孙巍巍 | Novel assembled surge protector |
| CN111786734A (en) * | 2020-06-28 | 2020-10-16 | 深圳市速联技术有限公司 | Radio frequency coaxial strong electromagnetic pulse protection method and device |
-
2014
- 2014-03-12 CN CN201420110207.XU patent/CN203734304U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410056A (en) * | 2014-11-24 | 2015-03-11 | 孙巍巍 | Novel assembled surge protector |
| CN111786734A (en) * | 2020-06-28 | 2020-10-16 | 深圳市速联技术有限公司 | Radio frequency coaxial strong electromagnetic pulse protection method and device |
| CN111786734B (en) * | 2020-06-28 | 2021-05-07 | 深圳市速联技术有限公司 | Radio frequency coaxial strong electromagnetic pulse protection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
|
| CX01 | Expiry of patent term |