CN201503508U - Multi-core optical fiber connector - Google Patents
Multi-core optical fiber connector Download PDFInfo
- Publication number
- CN201503508U CN201503508U CN2009200917161U CN200920091716U CN201503508U CN 201503508 U CN201503508 U CN 201503508U CN 2009200917161 U CN2009200917161 U CN 2009200917161U CN 200920091716 U CN200920091716 U CN 200920091716U CN 201503508 U CN201503508 U CN 201503508U
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- China
- Prior art keywords
- fiber
- contact element
- connector
- pressing plate
- connector shell
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Abstract
The utility model discloses a multi-core optical fiber connector, comprising a connector shell which is provided with a plugging end and an optical cable connecting end, a plurality of contact piece mounting cavities are arranged in the connector shell, and a plurality of optical contact pieces are arranged in the contact piece mounting cavities; more than one winding column pin for penetrating through the aramid fiber of the optical fiber is fixedly and laterally arranged below the optical contact pieces in the connector shell, and a fixed-connection body for penetrating in the end part of the aramid fiber of the optical fiber is fixedly connected in the connector shell; the multi-core optical fiber connector avoids limit of the rubber block thickness with the traditional spicing mode to the optical fiber length, the optical fiber can pass through nearby the winding column pin and can not be limited, so as to effectively reduce the length of the shell and reduce the optical fiber bending curvature and the signal loss caused by bending; in addition, the aramid fiber is wound on the winding column pin, so as to increase the tensile stressing points of the aramid fiber, have good stressing performance, cause the operation process to be simple and avoid gluing pollution.
Description
Technical field
The utility model relates to joints of optical fibre technical field, the multi-fiber connector that is connected with each root optical fiber of the optical cable that feeds respectively in particular for a plurality of single core light contact elements.
Background technology
More existing multi-fiber connectors comprise the housing with inserted terminal and optical cable feeding end, and a plurality of single core light contact elements are housed in the housing of connector, and single core light contact element is in the inserting part of inserted terminal formation with the corresponding inserting of light contact element of complementation of housing.
Feeding optical cable in the connector adopts glue embedding mode optical cable feeds in the curing blob of viscose of end in the connector shell with being cemented in after peeling attached to the termination of the protection fiber (aramid fiber) on each root optical fiber in the optical cable; like this at optical cable during from outside tension; protection fiber on each root optical fiber can be resisted the pulling of external force; realize the optical fiber tension; optical cable will feed end in the connector shell but described curing blob of viscose will occupy---the housing afterbody than large space; cause the connector tail dimension bigger; be not to extend along straight line to need crooked certain amplitude owing to optical fiber extend out to the pressing plate position from the curing blob of viscose on the other hand; under the situation of shell length and pressing plate invariant position; the thickness that solidifies glue will reduce the interior single-core fiber of housing and enter the preceding flexible length space of pressing plate; cause the bending curvature and the amplitude of deformation of single-core fiber bigger; the increase of fibre-optical bending curvature causes the loss of signal transmission bigger again, influences the signal transmission effect of connector.
In addition, each single core light contact element is to be made of optical fiber contact pins and the contact pin parts that are fixed on the optical fiber contact pins tail end, contact pin parts tail end supported by pressing plate or the contact pin installation cavity of roof pressure in housing in, pressing plate then adopts adhesive means to be fixed in the housing, and the problem that the relatively poor and glue of the stress performance of the adhering fixed mode of this pressing plate lost efficacy is difficult to solve.
The utility model content
The purpose of this utility model is to provide a kind of encapsulating, multi-fiber connector that stress performance is good of exempting from.
The technical scheme of multi-fiber cable connector of the present utility model is: a kind of multi-fiber connector, comprise connector shell with inserted terminal and optical cable feeding end, be provided with a plurality of contact element installation cavitys in the connector shell, a plurality of smooth contact elements are packed in the described contact element installation cavity, described connector shell inside laterally be installed with in light contact element below be used to penetrate optical fiber with the more than one coiling pin that twines of aramid fiber, also being provided with in the connector shell is used to be connected penetrate optical fiber with the body that is connected of aramid fiber end portion.
Coiling pin and optical fiber that the described body that is connected is fixed on connector shell feed between the position.
The described body that is connected is the fiber pressing plate of releasable connection on the connector shell inwall.
Described coiling pin is be set up in parallel a plurality of, and at least one end of coiling pin is connected on the connector shell, leaves the gap that the facial expression fibre passes through between the adjacent coiling pin.
Described connector shell is partly to be made of the grafting part of head and the hood of afterbody, the inserted terminal of described connector shell and optical cable feeding end are divided into the end of its peg graft part and hood part, and the inserted terminal of housing grafting part is provided with identification pin and/or the bullport that closes with complementary connector plug mistake proofing inserting.
Described hood part is made of two housings that fasten mutually.
Be equipped with in the described connector shell from optical cable and feed the locking when realizing docking of bolt latch mechanism that end extends to inserted terminal with respective socket.
Described each contact element installation cavity in connector shell, have towards optical cable come to internal orifice, on each contact element installation cavity internal orifice place end face, be pressed with in the connector shell and more than one each light contact element afterbody supported or the contact element pressing plate of roof pressure, described smooth contact element comprises the contact pin parts that contact pin and contact pin afterbody are connected, and is top-loaded with spring between the contact pin parts of described each light contact element afterbody and the contact element pressing plate;
Described contact element pressing plate is pressed on each contact element installation cavity internal orifice place end face by the pressing plate pin that is fixed on the plural horizontally set in the connector shell, at least one end of each pressing plate pin is inserted in the housing, and the cylinder roof pressure of pressing plate pin is on the bottom surface of contact element pressing plate away from the light contact element.
About described contact element pressing plate is arranged with the connector central axis two.
Described contact element pressing plate is provided with the through hole that the facial expression contact element of arranging at a certain distance passes through, and the fluting that is communicated with each through hole, but the groove gap facial expression of fluting fine by and can not pass through the light contact element.
Multi-fiber cable connector of the present utility model, be provided with the coiling pin of the aramid fiber that is used for fixing incoming fiber optic and the body that is connected that the aramid fiber end is fixed in the connector, connector at this structure can adopt non-bonding fixing means that the optical fiber aramid fiber is fixed, different with the encapsulating bonding way that fixedly aramid fiber adopted in the existing connector, the aramid fiber of weaving into thigh is through the body tension and fixing that is connected again after the tight winding of coiling pin, the terminal bearing of coiling pin and aramid fiber is simultaneously stressed, the tension stress point of aramid fiber is increased, stressed property is better, make operating procedure become simple and the pollution when having avoided encapsulating, and aramid fiber makes optical fiber be difficult for rocking after being tightened up, reduced fibre-optical bending, avoided of the restriction of the blob of viscose thickness of traditional encapsulating mode to fiber lengths, optical fiber can freely not be limited near the process coiling pin, the length of housing be can reduce effectively, fibre-optical bending curvature and the crooked loss of signal that is caused reduced.
Further, the body that is connected that the aramid fiber end is fixed is located at the coiling pin of connector shell and the position between the optical fiber feeding position, make aramid fiber after winding along optical fiber come to reflexed extend and tension, make aramid fiber shared length dimension in connector shell littler, also be convenient to the tension operation.
Further, the body that is connected that the aramid fiber end is fixed adopts the removable fiber pressing plate that is connected on the inner walls, and removable fiber pressing plate is convenient to the fixed installation operation of aramid fiber end.
In addition, multi-fiber cable connector of the present utility model substitutes the adhering fixed mode that has pressing plate now with the cylinder of plural pressing plate pin and the fixing mode that holds out against of pressing plate, the one or both ends of pressing plate pin can be inserted into the correspondence position on the connector shell, fixed sturcture is simple and reliable, avoided the glue Problem of Failure, and pressing plate pin of the present utility model can evenly be arranged the roof pressure position of pressing plate, the irregular shortcoming of gluing when having avoided bonding, therefore it is good to have stress performance, and operating procedure has simply, environmental protection, the advantage being convenient to check.
Description of drawings
Fig. 1 is a schematic perspective view of the present utility model;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the structural representation of pressing plate of the present utility model;
Fig. 4 is the A-A cut-open view of Fig. 2;
Fig. 5 is the fixed form synoptic diagram of the protection fiber of optical fiber in the utility model.
Embodiment
As Fig. 1～shown in Figure 5, the embodiment of the utility model multi-fiber cable connector is a rectangular multi-core optical fiber connector plug, comprise connector shell with inserted terminal and optical cable feeding end, connector shell is that the hood part 4 by the grafting part 3 of head and afterbody constitutes, a plurality of single core contact elements 6 are packed in the grafting part 3 interior set contact element installation cavitys, each light contact element 6 comprises the contact pin parts that contact pin and contact pin afterbody are connected, on each contact element installation cavity internal orifice place end face, be pressed with the contact element pressing plate 9 that each light contact element 6 is supported on the grafting part 3, be top-loaded with spring 8 between the contact pin parts of each light contact element 6 afterbody and the contact element pressing plate 9, about contact element pressing plate 9 is arranged with the connector central axis two, each contact element pressing plate 9 is supported by three pressing plate straight pins 10 that are fixed in the housing grafting part 3, each pressing plate straight pin 10 laterally is inserted in the housing grafting part 3, and the cylinder roof pressure of pressing plate straight pin 10 is on the bottom surface of contact element pressing plate 9 away from light contact element 6.
The structure of contact element pressing plate 9 as shown in Figure 3, include the through hole 14 that the facial expression contact element of arranging at a certain distance passes through on it, and the fluting that is parallel to each other 15 that is communicated with each through hole 14, but fluting 15 facial expressions fine by and can not pass through the light contact element, this structure has satisfied the demand that a certain independent contact element is changed, and has made things convenient for the making and the assembling of product.
The inserted terminal of connector shell and optical cable feed the end that end is divided into its grafting part 3 and hood part 4, and the inserted terminal of housing grafting part 3 is provided with the identification pin 1 that closes with complementary connector plug mistake proofing inserting, and its recognition method can reach 36 kinds.Also be provided with two bullports 2 on the inserted terminal of housing grafting part 3, this bullport can increase the stationarity in plug and the socket docking operation.
Be equipped with in the connector shell from optical cable and feed the locking when realizing docking of bolt latch mechanism 5 that end extends to inserted terminal with respective socket.This connector plug latch mechanism and contact element locator meams are as shown in Figure 2.Bolt latch mechanism 5 middle parts are provided with a step 11, and two that are provided with the symmetry placement in the pilot hole of step 11 place housing grafting parts 3 are around in step 11 back-up ring 12 on every side, and back-up ring 12 passes through screw retention in housing grafting part 3 by back up pad 13.Back-up ring 12 materials are plastics, and this design has reduced connector friction between latch mechanism and the plug casing in docking operation, have prolonged the serviceable life of product.
Multi-fiber cable connector of the present utility model pack into each optical fiber behind the optical cable with aramid fiber 20 fixed form as shown in Figure 5, be applied to external pull on the optical cable by the aramid fiber carrying of optical cable inside, its fixing step is:
1. 3 to 4 optical fiber are divided into one group, the principle of grouping is that the optical fiber of space in fiber axis makes progress institute's coverage that is retrained between adjacent coiling straight pin is one group.
With on each root optical fiber of each group optical fiber with the aramid fiber of strip off be woven into one.
3. will weave good each strand aramid fiber and walk around the coiling straight pin that it closes on, each root coiling straight pin can only twine on one group of optical fiber with one aramid fiber, its canoe as shown in Figure 5, twined for two to three weeks from top to bottom clockwise, then each strand aramid fiber is pressed between fiber pressing plate 17 and the inner walls near terminal part, and the end that makes each strand aramid fiber stretches out from the edge, below of fiber pressing plate 17, and fiber pressing plate 17 needs compress with spring washer 18 and screw 19.To guarantee to make it be in tension when twining aramid fiber, and guarantee to be adjacent between each circle as far as possible.
4. each strand aramid fiber compresses the back and stretches out protrude end knotting of fiber pressing plate 17 at it, the A portion knotting position among Fig. 5, and guarantee that as far as possible knotting place presses close to the edge of the fiber pressing plate 17 of correspondence position.
Adopting the fiber pressing plate that the end of aramid fiber is carried out crimping in the foregoing description fixes, certainly can realize that fixing means also have much to the end and the joints of optical fibre of aramid fiber, such as fixed by nut, perhaps adopt the compact heap that embeds in the connector to fix with the screw of tightening in the housing; Perhaps fix with the glue that is bonded on the connector corresponding component, because the reinforcement of aramid fiber stress performance after twining and straining, the size of the body that is connected that its end the adopted encapsulating piece of process for filling colloid into relatively lowers the requirement to reduce the volume that it occupies.
Claims (10)
1. multi-fiber connector, comprise connector shell with inserted terminal and optical cable feeding end, be provided with a plurality of contact element installation cavitys in the connector shell, a plurality of smooth contact elements are packed in the described contact element installation cavity, it is characterized in that: described connector shell inside laterally be installed with in light contact element below be used to penetrate optical fiber with the more than one coiling pin that twines of aramid fiber, also being provided with in the connector shell is used to be connected penetrate optical fiber with the body that is connected of aramid fiber end portion.
2. multi-fiber connector according to claim 1 is characterized in that: coiling pin and optical fiber that the described body that is connected is fixed on connector shell feed between the position.
3. multi-fiber connector according to claim 2 is characterized in that: the described body that is connected is the fiber pressing plate of releasable connection on the connector shell inwall.
4. according to claim 1 or 2 or 3 described multi-fiber connectors, it is characterized in that: described coiling pin is be set up in parallel a plurality of, and at least one end of coiling pin is connected on the connector shell, leaves the gap that the facial expression fibre passes through between the adjacent coiling pin.
5. multi-fiber connector according to claim 1, it is characterized in that: described connector shell is partly to be made of the grafting part of head and the hood of afterbody, the inserted terminal of described connector shell and optical cable feeding end are divided into the end of its peg graft part and hood part, and the inserted terminal of housing grafting part is provided with identification pin and/or the bullport that closes with complementary connector plug mistake proofing inserting.
6. multi-fiber connector according to claim 5 is characterized in that: described hood part is made of two housings that fasten mutually.
7. multi-fiber connector according to claim 1 is characterized in that: be equipped with in the described connector shell from optical cable and feed the locking when realizing docking with respective socket of bolt latch mechanism that end extends to inserted terminal.
8. multi-fiber connector according to claim 1, it is characterized in that: described each contact element installation cavity in connector shell, have towards optical cable come to internal orifice, on each contact element installation cavity internal orifice place end face, be pressed with in the connector shell and more than one each light contact element afterbody supported or the contact element pressing plate of roof pressure, described smooth contact element comprises the contact pin parts that contact pin and contact pin afterbody are connected, and is top-loaded with spring between the contact pin parts of described each light contact element afterbody and the contact element pressing plate; Described contact element pressing plate is pressed on each contact element installation cavity internal orifice place end face by the pressing plate pin that is fixed on the plural horizontally set in the connector shell, at least one end of each pressing plate pin is inserted in the housing, and the cylinder roof pressure of pressing plate pin is on the bottom surface of contact element pressing plate away from the light contact element.
9. multi-fiber connector according to claim 8 is characterized in that: about described contact element pressing plate is arranged with the connector central axis two.
10. according to Claim 8 or 9 described multi-fiber connectors, it is characterized in that: described contact element pressing plate is provided with the through hole that the facial expression contact element of arranging at a certain distance passes through, and the fluting that is communicated with each through hole, but the groove gap facial expression of fluting fine by and can not pass through the light contact element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200917161U CN201503508U (en) | 2009-06-05 | 2009-06-05 | Multi-core optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200917161U CN201503508U (en) | 2009-06-05 | 2009-06-05 | Multi-core optical fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503508U true CN201503508U (en) | 2010-06-09 |
Family
ID=42454440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200917161U Expired - Lifetime CN201503508U (en) | 2009-06-05 | 2009-06-05 | Multi-core optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561537B (en) * | 2009-05-04 | 2011-11-16 | 中航光电科技股份有限公司 | Multi-fiber connector and method for fixing aramid fibers of fibers connected thereto |
| CN113203550A (en) * | 2021-04-28 | 2021-08-03 | 江苏光谷通信设备有限公司 | Multi-core optical fiber pigtail cable performance test method and device |
-
2009
- 2009-06-05 CN CN2009200917161U patent/CN201503508U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561537B (en) * | 2009-05-04 | 2011-11-16 | 中航光电科技股份有限公司 | Multi-fiber connector and method for fixing aramid fibers of fibers connected thereto |
| CN113203550A (en) * | 2021-04-28 | 2021-08-03 | 江苏光谷通信设备有限公司 | Multi-core optical fiber pigtail cable performance test method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100609 Effective date of abandoning: 20090605 |