CN203930114U - The high return loss optical stationary attenuator of integral type LC type - Google Patents
The high return loss optical stationary attenuator of integral type LC type Download PDFInfo
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- CN203930114U CN203930114U CN201420346284.5U CN201420346284U CN203930114U CN 203930114 U CN203930114 U CN 203930114U CN 201420346284 U CN201420346284 U CN 201420346284U CN 203930114 U CN203930114 U CN 203930114U
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- insertion core
- ceramic insertion
- overcoat
- return loss
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- 230000003287 optical effect Effects 0.000 title claims abstract description 55
- 239000000919 ceramic Substances 0.000 claims abstract description 80
- 238000003780 insertion Methods 0.000 claims abstract description 57
- 230000037431 insertion Effects 0.000 claims abstract description 57
- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000013307 optical fiber Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000003032 molecular docking Methods 0.000 claims abstract description 5
- 239000012634 fragment Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 5
- 238000002788 crimping Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Mechanical Coupling Of Light Guides (AREA)
Abstract
The utility model discloses the high return loss optical stationary attenuator of integral type LC type, comprise overcoat (1) and inner sleeve (2), overcoat (1) is positive head end and cloudy head end integrated injection forming structure, its positive head end is LC type joints of optical fibre normal structures, and its cloudy head end is LC type fiber adapter normal structure; Described overcoat (1) is pegged graft fitted shaft to the ducted body that is formed with front and back perforation with inner sleeve (2), in the ducted body of described docking, be provided with assembling all-in-one-piece optical attenuation chipware (9), opening ceramic bushing (7), spring (8), described optical attenuation chipware (9) comprises the first ceramic insertion core (3), the second ceramic insertion core (4), metal adapter sleeve (6), attenuating fiber (5), and opening ceramic bushing (7) is placed on around the second ceramic insertion core (4) external diameter; The utility model device integral structure is made simple, with low cost, reliable in quality, and engineering staff operates easy for installation.
Description
Technical field
The utility model relates to a kind of optical attenuator, particularly relates to the high return loss optical stationary attenuator of a kind of integral type LC type, and the utility model belongs to the communications field.
Background technology
Along with the development of Fibre Optical Communication Technology, the application of the high return loss optical stationary attenuator of LC type that is applicable to frame high-density installation LC joints of optical fibre interface is day by day huge, especially in distribution machine room, due to the design of high-density installation in frame, conventionally there is following problem in common LC Optical Fixed Attenuator: access the high return loss optical stationary attenuator of LC type between adapter and the LC joints of optical fibre time, due to cascade structure, its packing density is higher, in reality plug operating process, always introducing some side forces puts on the high return loss optical stationary attenuator of LC type, and side force is the inside that is delivered to the high return loss optical stationary attenuator of LC type by the ceramic insertion core in the LC joints of optical fibre.The high return loss optical stationary attenuator of traditional LC type is to be combined by front stall and back seat, this exterior part Split type structure can cause the closure of front stall and back seat insufficient, the existence of the side force that the LC joints of optical fibre are introduced thus can cause the front stall of the high return loss optical stationary attenuator of LC type and back seat to have in the axial direction certain angular error, the decay chipware that the existence of angular error can cause the high return loss photofixation of LC type to decay inner is subject to the bending of side force to cause breaking of ceramic sleeve, once breaking, ceramic sleeve will cause the inefficacy of the high return loss optical stationary attenuator of LC type under in working order.
As seen from the above, easily there is the phenomenon that ceramic sleeve breaks in the high return loss optical stationary attenuator of current LC type in high-density installation environment, is not suitable for the engineering application under present frame high-density installation condition.
Summary of the invention
Technical problem to be solved in the utility model is, overcome technical matters of the prior art, and a kind of integral type, the high return loss optical stationary attenuator of LC type that can avoid ceramic sleeve to break are provided.
The technical scheme that the utility model adopts is:
The high return loss optical stationary attenuator of integral type LC type, comprises jacket and inner sleeve, and overcoat is positive head end and cloudy head end integrated injection forming structure, and its positive head end is LC type joints of optical fibre normal structures, and its cloudy head end is LC type fiber adapter normal structure, described overcoat and inner sleeve are pegged graft fitted shaft to the ducted body that is formed with front and back perforation, in the ducted body of described docking, be provided with assembling all-in-one-piece optical attenuation chipware, opening ceramic bushing, spring, described optical attenuation chipware comprises the first ceramic insertion core, the second ceramic insertion core, metal adapter sleeve, attenuating fiber, opening ceramic bushing is placed on around the second ceramic insertion core external diameter, opening ceramic bushing front end and metal adapter sleeve connect, the first ceramic insertion core and the second ceramic insertion core are fixed by the crimping of metal adapter sleeve, spring is arranged at around metal adapter sleeve external diameter, attenuating fiber is fixed on the first ceramic insertion core, in the endoporus of the second ceramic insertion core.
Described outer putting is provided with groove, puts in described and is provided with protruding key, and described groove is pegged graft and coordinated with protruding key.
The ferrule endface of the ferrule endface of described the first ceramic insertion core and the second ceramic insertion core is UPC polished end faces or is APC polished end faces.
Described jacket and inner sleeve adopts plastic material.
Described metal adapter sleeve and spring adopt metal material.
Described attenuating fiber adopts glue and the first ceramic insertion core and the second ceramic insertion core to fix.
Described overcoat sun head end top is provided with shell fragment, and the cloudy head end of overcoat top is provided with card key, and card key is positioned at shell fragment top and is in contact with it setting.
The utlity model has following advantages:
The high return loss optical stationary attenuator of a kind of LC type of the present utility model, can overcome the shortcoming of prior art completely, and integral structure is made simple, with low cost, reliable in quality, and engineering staff operates easy for installation.
Brief description of the drawings
Fig. 1 is the high return loss optical stationary attenuator of integral type LC type of the present utility model integral installation distribution structure schematic diagram;
Fig. 2 a is jacket structure outside drawing of the present utility model;
Fig. 2 b is jacket structure left view of the present utility model;
Fig. 2 c is jacket structure sectional view of the present utility model;
Fig. 3 is inner sleeve structural representation of the present utility model;
Fig. 4 is optical attenuation chipware structural representation of the present utility model;
Fig. 5 is metal adapter sleeve outside drawing of the present utility model;
Wherein:
1: overcoat; 2: inner sleeve;
3: the first ceramic insertion cores; 4: the second ceramic insertion cores;
5: attenuating fiber; 6: metal adapter sleeve;
7: opening ceramic bushing; 8: spring;
9: optical attenuation chipware;
1-1: groove; 1-2: hexagon guide frame;
1-3: shell fragment; 1-4: card key;
2-1: protruding key;
6-1: hexagon guide frame;
9-1:A is to ferrule endface; 9-2:B is to ferrule endface;
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further illustrate the high return loss optical stationary attenuator of LC type of the present utility model and how to realize.
As shown in Figure 1, the high return loss optical stationary attenuator of integral type LC type of the present utility model, includes the inner sleeve that is positioned at cloudy head end 2 that is positioned at the overcoat 1 of positive head end and pegs graft with overcoat 1, and overcoat 1 is integral type injection mo(u)lding structure, described overcoat 1 is pegged graft and is coordinated with described inner sleeve 2, the ducted body connecting before and after being axially formed with, in the ducted body of described docking, be provided with optical attenuation chipware 9(as shown in Figure 4), opening ceramic bushing 7 and spring 8, described optical attenuation chipware 9 structures, include: inner shaft is to the first ceramic insertion core 3 that is inserted with attenuating fiber 5, inner shaft is to the second ceramic insertion core 4 that is inserted with attenuating fiber 5, in the periphery of the V shaped hole of the first ceramic insertion core 3 and the second ceramic insertion core 4 by the mode of crimping metal adapter sleeve 6, realize the fixing of metal adapter sleeve 6 and the first ceramic insertion core 3 and the second ceramic insertion core 4.The A of described optical attenuation chipware 9 can be finished to UPC end face to ferrule endface 9-1 and B to ferrule endface 9-2 simultaneously, also can be finished to APC end face.The B of optical attenuation chipware 9 has opening ceramic bushing 7 to ferrule endface 9-2 direction outer race, described opening ceramic bushing 7 is placed on around the external diameter of the second ceramic insertion core 4, its front end and metal adapter sleeve 6 connect, and rear end is suspended in the end spaces of ducted body.Optical attenuation chipware 9, spring 8 and opening ceramic bushing 7 form one, spring 8 is placed on around the external diameter of metal adapter sleeve 6 in optical attenuation chipware 9, at spring 8 by compression time, pass to the corresponding elastic force of metal adapter sleeve 6, to ensure that optical attenuation chipware 9 dock coupling with overcoat 1 in ducted body, the A that while ducted body provides optical attenuation chipware 9 is rear to compression stroke by compression time to ferrule endface.
As shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, Fig. 3 and Fig. 5, described overcoat 1 is integral type injection mo(u)lding structure, the positive head end of overcoat 1 is for meeting LC type joints of optical fibre normal structure, the cloudy head end of overcoat 1 is for meeting LC type fiber adapter normal structure, and injection moulding forms positive head end and cloudy head end is structure as a whole.Described overcoat sun head end top is provided with shell fragment 1-3, and the cloudy head end of overcoat top is provided with card key 1-4, and card key 1-4 is positioned at contact on shell fragment 1-3 and arranges.Sun head for convenience of overcoat 1 is docking plug with LC type fiber adapter, side arranges on the coat shell fragment 1-3 and card key 1-4, in the time press...withing one's finger lower card key 1-4, strength puts on shell fragment 1-3 by card key 1-4, facilitate overcoat 1 to coordinate with patching of LC type fiber adapter end, easy operating.The integral structure of the utility model overcoat, by traditional front stall (injection mo(u)lding of positive head portion monomer), (injection mo(u)lding of cloudy head portion monomer) plugs and is connected (positive head end and cloudy head end are Split type structure) with back seat, be combined into one injection mo(u)lding structure overcoat 1, in use, when the side force that the LC joints of optical fibre are introduced puts on the cloudy head end of overcoat 1, in the axial direction of overcoat 1 inside, can not produce certain angular error, thereby the decay chipware of avoiding the high return loss photofixation of LC type to decay inner can not be subject to the bending of side force and cause breaking of ceramic sleeve, the effectively normal work of protection device.Described overcoat 1 is pegged graft and is coordinated with the protruding key 2-1 in inner sleeve 2 by the groove 1-1 in overcoat 1 with described inner sleeve 2, the ducted body connecting before and after being axially formed with.Hexagon guide frame 1-2(in described overcoat 1 docks (as Fig. 5) as Fig. 2 b) carries out interworking with the hexagon guide frame 6-1 in metal adapter sleeve 6.
Described inner sleeve 2, protruding key 2-1 wherein patches and coordinates with the groove 1-1 in overcoat 1, the ducted body connecting before and after being axially formed with, as shown in Figure 1.Inner sleeve 2 has position-limiting action to the spring 8 in ducted body, Compress Spring 8 in the spacing space of ducted body.
The first described ceramic insertion core 3, built-in attenuating fiber 5, inhales glue by the first ceramic insertion core 3 endoporus, attenuating fiber 5 is penetrated in the endoporus of the first ceramic insertion core 3, by being heating and curing, realizes the fixing of attenuating fiber 5 and the first ceramic insertion core 3; V shaped hole one end of the first ceramic insertion core 3 is pressed in metal adapter sleeve 6.
The second described ceramic insertion core 4, built-in attenuating fiber 5, inhales glue by the second ceramic insertion core 4 endoporus, attenuating fiber 5 is penetrated in the endoporus of the second ceramic insertion core 4, by being heating and curing, realizes the fixing of attenuating fiber 5 and the second ceramic insertion core 4; V shaped hole one end of the second ceramic insertion core 4 is pressed in metal adapter sleeve 6.Opening ceramic bushing 7 is placed on around the external diameter of the second ceramic insertion core 4.
Described attenuating fiber 5, penetrates respectively and has inhaled in glue complete the first ceramic insertion core 3 and the second ceramic insertion core 4, by being heating and curing, realizes the fixing of attenuating fiber 5 and the first ceramic insertion core 3 and the second ceramic insertion core 4.
Described metal adapter sleeve 6, by the mode of crimping, is individually fixed in V shaped hole one end of V shaped hole one end of the first ceramic insertion core 3 and the second ceramic insertion core 4 in metal adapter sleeve 6.Hexagon guide frame 6-1 in metal adapter sleeve 6 can with overcoat 1 in hexagon guide frame 1-2 carry out interworking.Spring 8 can be placed on around the external diameter of metal adapter sleeve 6.
Described opening ceramic bushing 7, is placed on around the external diameter of the second ceramic insertion core 4, and front end, with metal adapter sleeve 6 to contacting, is realized the spacing of ceramic sleeve 7 simultaneously.
Described spring 8, is placed on around the external diameter of metal adapter sleeve 6, and the hexagon guide frame 6-1 by metal adapter sleeve and inner sleeve 2 are carried out spacing, and pressurized shrinks between metal adapter sleeve 6 and inner sleeve 2.
Described optical attenuation chipware 9, is made up of jointly the first ceramic insertion core 3, the second ceramic insertion core 4, attenuating fiber 5 and metal adapter sleeve 6, forms integrative-structure with opening ceramic bushing 7 and spring 8, is built in overcoat 1 and inner sleeve 2 patches in the ducted body of formation.As shown in Figure 4, the A of described optical attenuation chipware 9 can be finished to UPC end face to ferrule endface 9-1 and B to ferrule endface 9-2 simultaneously, also can be finished to APC end face
Described optical attenuation chipware 9 is the critical component of the high return loss optical stationary attenuator of the utility model integral type LC type, for realizing the attenuation function of device input optical signal.Light signal also can the high return loss optical stationary attenuator of integral type LC type oedoeagus input, also can be from the input of the moon end, the input and output of light signal are non-directional.
Above-mentioned each parts, overcoat 1 and inner sleeve 2 are plastic material, and the first ceramic insertion core 3, the second ceramic insertion core 4 and opening ceramic bushing 7 are zirconia material, and attenuating fiber 5 is the silicon dioxide of doping metals impurity, metal adapter sleeve 6, spring 8 is metal material.
Described overcoat 1 and inner sleeve 2 are for meeting the plastic outer part of the LC type joints of optical fibre and LC type fiber adapter standard interface size.The sun head of the high return loss optical stationary attenuator of integral type LC type is connected with corresponding LC type fiber adapter.The cloudy head of the high return loss optical stationary attenuator of integral type LC type is connected with the corresponding LC type joints of optical fibre, and its interface size respectively correspondence meets the corresponding national standard of the above-mentioned type infrastructure product and international standard interface dimensional requirement.Therefore the utility model technology is the solution of the high return loss optical stationary attenuator of integral type LC type.Product structure design is simple, and meanwhile, the attainable very good optical index of the high return loss optical stationary attenuator of this integral type LC type, meets on market product encapsulation miniaturization, the industry requirement that function is integrated.
Although the utility model has at length illustrated and described relevant specific embodiment reference, those skilled in the art should be understood that, can make in the form and details various changes not deviating from spirit and scope of the present utility model.These change all will fall into the desired protection domain of claim of the present utility model.
Claims (7)
1. the high return loss optical stationary attenuator of integral type LC type, it is characterized in that: comprise overcoat (1) and inner sleeve (2), overcoat (1) is positive head end and cloudy head end integrated injection forming structure, and its positive head end is LC type joints of optical fibre normal structures, and its cloudy head end is LC type fiber adapter normal structure, described overcoat (1) is pegged graft fitted shaft to the ducted body that is formed with front and back perforation with inner sleeve (2), in the ducted body of described docking, be provided with assembling all-in-one-piece optical attenuation chipware (9), opening ceramic bushing (7), spring (8), described optical attenuation chipware (9) comprises the first ceramic insertion core (3), the second ceramic insertion core (4), metal adapter sleeve (6), attenuating fiber (5), opening ceramic bushing (7) is placed on around the second ceramic insertion core (4) external diameter, opening ceramic bushing (7) front end and metal adapter sleeve (6) connect, the first ceramic insertion core (3) is fixed by metal adapter sleeve (6) crimping with the second ceramic insertion core (4), spring (8) is arranged at around metal adapter sleeve (6) external diameter, attenuating fiber (5) is fixed on the first ceramic insertion core (3), in the endoporus of the second ceramic insertion core (4).
2. the high return loss optical stationary attenuator of integral type LC type according to claim 1, it is characterized in that: on described overcoat (1), be provided with groove (1-1), in described inner sleeve (2), be provided with protruding key (2-1), described groove (1-1) is pegged graft and is coordinated with protruding key (2-1).
3. the high return loss optical stationary attenuator of integral type LC type according to claim 1, is characterized in that: the ferrule endface (9-1) of described the first ceramic insertion core (3) and the ferrule endface (9-2) of the second ceramic insertion core (5) are UPC polished end faces or are APC polished end faces.
4. the high return loss optical stationary attenuator of integral type LC type according to claim 3, is characterized in that: described overcoat (1) and inner sleeve (2) adopt plastic material.
5. the high return loss optical stationary attenuator of integral type LC type according to claim 4, is characterized in that: described metal adapter sleeve (6) and spring (8) adopt metal material.
6. the high return loss optical stationary attenuator of integral type LC type according to claim 5, is characterized in that: described attenuating fiber (5) adopts glue and the first ceramic insertion core (3) and the second ceramic insertion core (4) fixing.
7. the high return loss optical stationary attenuator of integral type LC type according to claim 1, it is characterized in that: described overcoat sun head end top is provided with shell fragment (1-3), the cloudy head end of overcoat top is provided with card key (1-4), and card key (1-4) is positioned at shell fragment (1-3) top and is in contact with it setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346284.5U CN203930114U (en) | 2014-06-27 | 2014-06-27 | The high return loss optical stationary attenuator of integral type LC type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346284.5U CN203930114U (en) | 2014-06-27 | 2014-06-27 | The high return loss optical stationary attenuator of integral type LC type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203930114U true CN203930114U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420346284.5U Expired - Lifetime CN203930114U (en) | 2014-06-27 | 2014-06-27 | The high return loss optical stationary attenuator of integral type LC type |
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| CN (1) | CN203930114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324757A (en) * | 2016-08-29 | 2017-01-11 | 黄石晨信光电股份有限公司 | Dual adapter interface LC attenuator |
-
2014
- 2014-06-27 CN CN201420346284.5U patent/CN203930114U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324757A (en) * | 2016-08-29 | 2017-01-11 | 黄石晨信光电股份有限公司 | Dual adapter interface LC attenuator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |