CN201413420Y

CN201413420Y - Optical cable connector

Info

Publication number: CN201413420Y
Application number: CN2009200896803U
Authority: CN
Inventors: 李小卫
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2009-04-17
Filing date: 2009-04-17
Publication date: 2010-02-24
Anticipated expiration: 2019-04-17

Abstract

The utility model discloses an optical cable connector. The casing is provided with more than one optical contact installation through hole for installing the optical contact; On the outer end face or inner end face of the shell at the end, a baffle plate is press-fitted on the end face, and the pin part of the optical contact piece in the installation through hole of each optical contact piece is mounted on the top between the corresponding position of the baffle plate. There is a spring, and the optical cable access end of the shell is detachably connected with a tail lock sleeve, which is directly or through a force transmission part and tightened on the rear end of the baffle, and the tail lock sleeve is provided with The through hole for the optical fiber of the optical cable to pass through and the outer surface for the outer sheath and/or aramid fiber of the optical fiber passing therethrough to be attached. The utility model replaces the original front and rear sleeve structures through the structure of the tail lock sleeve to lock the baffle and press the optical contact piece, reducing the installation space required for the pin insertion parts; and the use of the tail lock sleeve can carry out the installation of the optical cable. The crimping is fixed, and the assembly is very convenient.

Description

Optical connector

Technical field

The utility model relates to optical cable connection device technical field.

Background technology

More existing optical connectors, as shown in Figure 1, be that a plurality of smooth contact elements are installed in connector shell, guiding, anti-rotation and the axial elasticity flexible requirement of each light contact element 501 in order to satisfy optical fiber contact pins, all in the contact pin parts afterbody additional springs and the housing that is fastened as by protheca, back cover of packing into, this class contact element is such as DLC light contact element of fit standard LC light contact pin parts etc., cause the volume of this class light contact element own bigger owing to having overcoat, and can not satisfy the demand of high-density installation light contact pin parts in the small size connector; And optical cable 502 adopts heat-shrink tube 503 to carry out pyrocondensation with contact pin parts afterbody to fix in this structure, and assembling is inconvenient, and fixing also not too reliable, technological requirement is higher; An other class optical connector has then saved the housing of light contact element, as disclosed " fiber connector socket " among the Chinese patent notification number CN201122189Y, as shown in Figure 2, the afterbody of its optical fiber contact pins is fixed on the contact pin parts, and the contact pin parts are in the mounting hole that directly is inserted in the housing, be fixed with on the outer face at this mounting hole after-opening place pressing plate with the shutoff of contact pin parts in the hole, contact pin parts afterbody is provided with tail pipe, is set with on the tail pipe to push up the back-moving spring that is contained between contact pin parts and the pressing plate.And for example disclosed among the CN201122188Y " optical fiber connector plug ", as shown in Figure 3, equally, the afterbody of its optical fiber contact pins is fixed on the contact pin parts, the contact pin parts are in the mounting hole that directly is inserted in the housing, be fixed with on the outer face at this mounting hole after-opening place pressing plate with the shutoff of contact pin parts in the hole.Though the structure of the two kinds of direct plug-in mountings of contact pin parts in back is simple, but connector is still not too convenient with combining of optical cable, generally be tail end at the connector shell at contact pin parts mounting hole place prolong connect one after cover and after put/other inner conical drogue, the pressure welding case of middle usefulness or solidify glue and realize, so both increase operation steps, influenced the entire length of housing again.

The utility model content

The purpose of this utility model be to provide a kind of contact pin assembly structure simple, combine optical connector eaily with optical cable.

The technical solution of the utility model is: a kind of optical connector, comprise housing and the more than one smooth contact element that wherein assembles, housing one end is an inserted terminal, the other end is that optical cable feeds end, described smooth contact element comprises that contact pin parts and afterbody are fixed in the optical fiber contact pins on the contact pin parts, and the light contact element that is provided with more than one installation light contact element in the housing is installed through hole; The preceding aperture that described smooth contact element is installed through hole is in the inserted terminal of housing, the optical fiber contact pins front end of described smooth contact element leans out from the preceding aperture that the light contact element is installed through hole or is in the inboard spliced eye that is provided with in preceding aperture, the back aperture that described smooth contact element is installed through hole is near the housing optical cable and feeds on the outside end face or internal end surface of the housing of holding, compression fit has baffle plate on this end face, be provided with the cable-through hole that the optical fiber that connected for each light contact element passes through in the baffle plate, be top-loaded with spring between the contact pin parts of the light contact element in each light contact element installation through hole and the correspondence position of described baffle plate, the optical cable of described housing feeds end and goes up the removable tail lock sleeve that is fixed with, described tail lock sleeve directly or by force transferring part holds out against on the rear end of described baffle plate, be provided with the through hole that the optical fiber of facial expression cable passes through in the tail lock sleeve, described tail lock sleeve is provided with for passing the outer jacket of optical fiber wherein and/or the outside surface that aramid fiber adheres to.

The optical cable of described housing feeds end and is provided with uropore, and the uropore front end is communicated with each light contact element installation through hole and by a step transition, the step surface of this step is press-fitted for described baffle plate.

Described tail lock sleeve is the swivel nut of housing uropore by the screw thread spinning, swivel nut front end and described baffle plate compression fit, and the swivel nut afterbody is provided with the pressure welding case part of extending to away from housing inserted terminal direction.

The close optical cable of described housing feeds on the outside surface of holding and overlaps by the back that has been threaded, the outer jacket of formation optical fiber and/or the crimping gap of aramid fiber between the pressure welding case part outside surface of back cover inwall and described swivel nut afterbody.

Be set with pressure welding case on the pressure welding case part outside surface of the described swivel nut afterbody in the cover of described back.

Described tail lock sleeve is that housing outer surface feeds the swivel nut of end place by the screw thread spinning near optical cable, and the swivel nut front end is by back-up ring or direct and described baffle plate compression fit, and the swivel nut afterbody is provided with the pressure welding case part of extending to away from housing inserted terminal direction.

The outside of the pressure welding case of described swivel nut part is set with the outer jacket that is used for crimping optical fiber and/or the pressure welding case and the sheath of aramid fiber successively.

The optical fiber contact pins front end of described smooth contact element is in the light contact element to be installed in the anterior spliced eye that is provided with of through hole, and described spliced eye is located at described smooth contact element and is installed in the contact pin guide frame that supports between the contact pin parts of through hole inboard, preceding aperture and light contact element.

Described contact pin guide frame is installed the sleeve pipe of the anterior plug-in mounting of through hole or the stepped hole of pad or light contact element installation through hole itself for the light contact element.

Contact pin parts of the present utility model rear end is installed in the through hole at the light contact element by baffle plate elasticity press seal by spring, and the tail lock sleeve that baffle plate is connected on the device housing optical cable incoming end is locked, and the outer jacket of through hole that the optical fiber that is provided with the facial expression cable on described tail lock sleeve passes through and confession optical fiber and/or the outside surface that aramid fiber adheres to, substitute the forward and backward nested structure of former contact element on the one hand by the structure of tail lock sleeve locking baffle plate roof pressure light contact element, reduced the required installing space of contact pin parts; The crimping of adopting the tail lock sleeve can carry out optical cable is on the other hand fixed, and aramid fiber in optical cable outer jacket and the optical cable is fixed on the tail lock sleeve by fixing fitting crimping such as pressure welding cases, assembles very conveniently, more meets the assembling custom in workshop, has improved production efficiency.

Description of drawings

Fig. 1 is the structural representation of existing first kind of joints of optical fibre;

Fig. 2 is the structural representation of existing second kind of joints of optical fibre;

Fig. 3 is the structural representation of existing the third joints of optical fibre;

Fig. 4 is the structural representation of the utility model embodiment 1;

Fig. 5 is the structural representation of the baffle plate of the utility model embodiment 1;

Fig. 6 is the structural representation that the housing of the utility model embodiment 1 is observed from afterbody;

Fig. 7 is the structural representation of the utility model embodiment 2;

Fig. 8 is the structural representation of the utility model embodiment 3;

Fig. 9 is the structural representation of the utility model embodiment 4.

Embodiment

As Fig. 4, Fig. 5, shown in Figure 6, embodiment 1 of the present utility model is a kind of optical connector socket, comprise housing 1 and the light contact element of wherein installing, housing 1 one ends are inserted terminal, the other end is that optical cable feeds end, be provided with in the housing 1 from optical cable and feed the installation passage that is used for light contact element and optical fiber 3 plug-in mountings that end extends to inserted terminal, the light contact element comprises that contact pin parts 4 and afterbody are fixed in the optical fiber contact pins 6 on the contact pin parts 4, before this installation passage comprises, back two sector holes, preceding sector hole is that two parallel light contact elements that are fitted with the light contact element arranged side by side are installed through holes 13, the front end that the light contact element is installed through hole 13 is provided with preceding aperture 12 at the inserted terminal of housing 1, the optical fiber contact pins 6 of light contact element stretches out from described preceding aperture 12, the front end face top of the contact pin parts 4 of light contact element is contained on inboard on every side housing 1 inwall in preceding aperture 12, back sector hole is a uropore 14, the front end of uropore 14 is installed through hole 13 transition by step surface 7 and light contact element and is connected, the rear end of uropore 14 is for installing the opening of passage, and the hole wall of uropore 14 is provided with axially extended gathering sill 15.

Housing is installed in the uropore 14 of passage only to revolve by gathering sill 15 and is fitted with front end and is fitted in baffle plate 8 on the step surface 7, be top-loaded with spring 9 between the contact pin parts 4 of each light contact element and the baffle plate 8, offer the fine cable-through hole 17 that interts of facial expression in the baffle plate 8, cable-through hole 17 communicates with the outside, outer ring of baffle plate 8 by the groove 19 that radially extends, and makes optical fiber when the assembling cable-through hole 17 of can packing into from the side.Corresponding each spring installation site is provided with spring installation cavity 16 on the described baffle plate 8.Baffle plate 8 outer rings be provided with passage uropore 14 is installed on gathering sill 15 only revolve the feather key 18 that inserting cooperates.Be installed with the swivel nut 10 of corresponding end roof pressure by screw thread in the installation passage uropore 14 of the opening inboard of housing optical cable feeding end in baffle plate 8 rear ends.Described swivel nut 10 front ends and described baffle plate 8 compression fit, swivel nut 10 afterbodys are provided with the pressure welding case part 2 of extending to away from housing inserted terminal direction.The close optical cable of housing 1 feeds on the outside surface of holding and overlaps 21 by the back that has been threaded, the outer jacket of formation optical cable 20 and the crimping gap of aramid fiber 21 between pressure welding case part 2 outside surfaces of back cover 21 inwalls and described swivel nut 10 afterbodys.The outer jacket of optical cable and aramid fiber 21 surround on the pressure welding case part 2 of described swivel nut 10 afterbodys and by the pressure welding case 22 of suit on it and compress.

As shown in Figure 7, embodiment 2 of the present utility model, be with the difference of embodiment 1, the axial width of block 208 is bigger, housing 201 outside surfaces feed the end place near optical cable and are installed with rear thread sleeve 211 by screw thread, direct and described baffle plate 208 compression fit of rear thread sleeve 211 front ends, rear thread sleeve 211 afterbodys are provided with the pressure welding case part 202 of extending to away from housing inserted terminal direction, the outer jacket of optical cable and aramid fiber 221 surround on the pressure welding case part 202 and by the pressure welding case 203 of suit on it and compress, and pressure welding case 203 outsides also are set with outward appearance annex 204.

As shown in Figure 8, embodiment 3 of the present utility model is that with the difference of embodiment 2 axial width of block 308 is less, and rear thread sleeve 311 front ends are by back-up ring 305 and described baffle plate 308 compression fit, and all the other are identical with embodiment 2.

As shown in Figure 9, embodiment 4 of the present utility model, embodiment 4 is a kind of optical connector plugs, be used for optical connector socket inserting with embodiment 1, be with the difference of embodiment 1, optical fiber contact pins 406 front ends of its light contact element are in the set spliced eye of housing 401 inserted terminals, this spliced eye is formed at the light contact element and installs in the contact pin guide frame that supports between the contact pin parts 404 of through hole 413 412 inboards, preceding aperture and light contact element, and this contact pin guide frame is the sleeve pipe 405 that the light contact element is installed the anterior plug-in mounting of through hole.Sleeve pipe 405 also can replace to be located at housing install the passage front portion, be supported between housing inserted terminal end face and the contact pin parts front end, the other forms of contact pin guide frame of confession optical fiber contact pins 406 plug-in mountings, such as directly replacing, perhaps be the more than one pad etc. of being located at the plug component front end with the stepped hole (as the structure among Fig. 2) that is provided with in the suitable housing of size.

In the foregoing description 1～4 of the present utility model, the light contact element is installed the back aperture of through hole and is all opened on the step end face of enclosure interior, corresponding baffle plate all pushes up on the step end face that is contained in enclosure interior, certainly, the back aperture of light contact element installation through hole also can directly be opened in the housing optical cable and feed on the outside end face of the housing rear end of holding, and the baffle plate top is contained on the rear end face of housing, as shown in the existing structure among Fig. 1, Fig. 2.

Claims

1. An optical cable connector, comprising a housing and one or more optical contacts assembled therein. One end of the housing is a plug-in end, and the other end is an optical cable access end. The optical contact includes a pin part and a fixed tail For the optical fiber ferrule on the pin part, the housing is provided with more than one optical contact installation through hole for installing the optical contact; the front opening of the optical contact installation through hole is at the insertion end of the housing, The front end of the optical fiber ferrule of the optical contact protrudes from the front opening of the optical contact installation through hole or is located in the insertion hole provided inside the front opening, and it is characterized in that: the rear of the optical contact installation through hole The hole is located on the outer end face or inner end face of the housing close to the cable entry end of the housing, and a baffle is pressed on the end face, and the baffle is provided with a wire-passing hole for the optical fibers connected to each optical contact to pass through. A spring is mounted on the top between the pin part of the optical contact in the installation through hole of each optical contact and the corresponding position of the baffle, and the optical cable entry end of the housing is detachable and connected with a tail lock. The tail locking sleeve is tightened directly or through the force transmission part on the rear end of the baffle, the tail locking sleeve is provided with a through hole for the optical fiber of the optical cable to pass through, and the tail locking sleeve is provided with The outer surface to which the outer sheath and/or aramid fiber of an optical fiber passing through it is attached.

2. The optical cable connector according to claim 1, characterized in that: the optical cable inlet end of the housing is provided with a tail hole, and the front end of the tail hole communicates with each optical contact installation through hole and passes through a step transition. The stepped face of the step is press-fitted for the baffle.

3. The optical cable connector according to claim 1, characterized in that: the tail locking sleeve is a screw sleeve screwed through the tail hole of the housing, the front end of the screw sleeve is tightly fitted with the baffle, and the screw sleeve The tail part is provided with a crimping sleeve part extending away from the insertion end of the housing.

4. The optical cable connector according to claim 1, characterized in that: the outer surface of the housing close to the cable inlet end is threadedly connected with a rear sleeve, and the inner wall of the rear sleeve and the crimping sleeve at the tail of the screw sleeve The outer sheath of the optical fiber and/or the crimping gap of the aramid fiber are formed between part of the outer surfaces.

5. The optical cable connector according to claim 4, characterized in that a crimping sleeve is fitted on the outer surface of the crimping sleeve portion at the tail of the screw sleeve in the rear sleeve.

6. The optical cable connector according to claim 1, characterized in that: the tail locking sleeve is a screw sleeve screwed on the outer surface of the housing close to the optical cable inlet end, and the front end of the screw sleeve passes through a retaining ring or is directly connected to the The baffle is press fit, and the tail of the screw sleeve is provided with a crimping sleeve part extending away from the insertion end of the housing.

7. The optical cable connector according to claim 6, characterized in that: the outside of the crimping sleeve part of the screw sleeve is sequentially covered with the outer sheath for crimping the optical fiber and/or the crimping sleeve of the aramid fiber and jacket.

8. The optical cable connector according to claim 1, characterized in that: the front end of the optical fiber ferrule of the optical contact is located in the insertion hole provided in front of the installation through hole of the optical contact, and the insertion hole is set in The optical contact is installed in a pin guide structure supported between the inner side of the front opening of the through hole and the pin part of the optical contact.

9. The optical cable connector according to claim 8, characterized in that: the pin guide structure is a sleeve or a gasket inserted in the front of the optical contact installation through hole, or the optical contact installation through hole itself step hole.