CN101876730B - Optical connector and connector assembly - Google Patents
Optical connector and connector assembly Download PDFInfo
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- CN101876730B CN101876730B CN2009102244546A CN200910224454A CN101876730B CN 101876730 B CN101876730 B CN 101876730B CN 2009102244546 A CN2009102244546 A CN 2009102244546A CN 200910224454 A CN200910224454 A CN 200910224454A CN 101876730 B CN101876730 B CN 101876730B
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- face
- ring flange
- optical connector
- rear end
- outer peripheral
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Abstract
The invention relates to an optical connector and a connector assembly. Each contact member of a first connector and a second connector of the optical connector and the connector assembly comprises a ring flange; the peripheral surface of the ring flange, which is close to a front end surface, is provided with a shaft collar, and the peripheral surface of the ring flange, which is close to a rear end surface, is provided with a narrow neck structure; the narrow neck structure is sleeved with an elastic sleeve; a spring is sleeved between the elastic sleeve and the shaft collar of the ring flange; the front section of a center hole of the elastic sleeve is slidably matched with the peripheral surface positioned in front of the narrow neck structure of the ring flange in a supporting way, and a necking stepped hole section which is positioned on the tail part of the center hole of the elastic sleeve and adopts a radial elastic actuating structure is matched with the peripheral surface of the narrow neck structure; the outer wall of the elastic sleeve is provided with a baffle ring, and the rear end surface of the baffle ring is matched with the corresponding structure of the shell of the optical connector in a stopping way. The invention enables the structure of the contact member to be more compact by assembling both the spring of the contact member of the optical connector and the elastic sleeve used for fixing with the shell of the optical connector on the peripheral surface of the ring flange, thereby reducing the dimension of the contact member.
Description
Technical field
The present invention relates to a kind of optical connector, the invention still further relates to the connector assembly of this optical connector simultaneously, belong to the optical signal transmission field.
Background technology
Existing a kind of optical connector is as shown in Figure 1; Comprise connector shell 21, have in the housing 21 and the corresponding shoulder hole of optical fiber contact, be provided with optical fiber contact 31 in the shoulder hole; The front end face of the protheca 100 of optical fiber contact 31 matches with the cascaded surface of the shoulder hole of housing 21; The back cover 200 of optical fiber contact 31 is provided with the axle collar, and the front end face that the rear end face of this axle collar and is fixedly installed on the pressing plate 51 on the housing 21 matches, thereby optical fiber contact 31 is fixed in the housing 21.It is that the Chinese patent instructions of 200720003373.X discloses a kind of rear jacket stationary type fiber optic cable connector contact member that the light contact element of optical connector shown in Figure 1 is application number; Comprise contact pin, contact pin caudal peduncle, protheca, spring and back cover; Wherein contact pin is fixedly connected and is assemblied in the ladder endoporus of protheca with the contact pin caudal peduncle; The front end face of contact pin caudal peduncle cooperates with the step surface of protheca shoulder hole; The outer peripheral face of contact pin cooperates with the less endoporus section of protheca point diameter, and from its endoporus, stretches out.The back cover is fixedly mounted on the protheca rear end; The buckle structure of back cover front end and the corresponding buckle structure secure fit on the protheca back segment elastic actuating structure endoporus side face; Spring housing is contained on the minor diameter side face of contact pin caudal peduncle tail end; The front end top is contained on the cascaded surface of contact pin caudal peduncle, and the top, rear end is contained in the front end of back cover, and the rear end face of contact pin caudal peduncle does not contact with the front end face of back cover.Optical cable is fixed on cover rear end, back through heat-shrink tube; The hole that puts after optical fiber passes is connected with contact pin; The contact pin caudal peduncle is connected through spring with the back cover, and when the plugs and sockets of optical connector plugged together, the contact pin Elastic Contact of plugs and sockets contact element was also stressed; The stressed back of contact element overcomes spring force with the contact pin caudal peduncle to be retreated, thereby realizes reliably plugging together of optical connector.This invention is simple in structure, easy to process, plugs together reliably, still; Because the contact element arranged outside has protheca, spring is arranged in the protheca, causes the radial dimension of contact element bigger; Thereby cause the radial dimension of optical connector front end bigger, can not satisfy the requirement of optical communication equipment miniaturization; In addition, the back cover of this invention is fixed on the elastic actuating structure of protheca back segment through the spiral-lock structure between itself and the protheca, because the protheca back segment has the elastic actuating performance, so the stability maintenance between the cover is poor behind the protheca, causes the globality of contact element bad.
Summary of the invention
The purpose of this invention is to provide a kind of optical connector,, the present invention also aims to provide a kind of connector assembly simultaneously to have solved in the prior art owing to the contact element arranged outside the bigger problem of contact element radial dimension that protheca causes.
For realizing above-mentioned purpose, the present invention adopts following technical scheme: a kind of optical connector comprises housing; Has the shoulder hole that contact element is set in the housing; Be provided with contact element in this shoulder hole, said optical connector contact element comprises a ring flange, and this ring flange has one and extends to the installation channel of rear end face from front end face; The front end of this installation channel is set with contact pin; Ring flange is provided with an axle collar near the outer peripheral face of front end face, is provided with a thin neck structure near the outer peripheral face of rear end face, and this thin neck structure place is set with a resilient sleeve; Be set with a spring between the axle collar of this resilient sleeve and ring flange; This spring top is contained between the corresponding end face of the ring flange axle collar and resilient sleeve, and the leading portion of said resilient sleeve center pit cooperates with the thin neck structure outer peripheral face sliding support before of ring flange, and said resilient sleeve center pit afterbody has reducing stepped hole section that radial elastic actuates structure and cooperates with the outer peripheral face of neck structure carefully; The outer wall of said resilient sleeve is provided with a baffle ring, and the rear end face of this baffle ring cooperates with counter structure block on the optical connector housing.
Counter structure on the said optical connector housing is that the tail cover that is screwed onto on the housing tail end outer peripheral face is fitted in the pressing plate on the housing, and the front end face of this pressing plate cooperates with the rear end face of said baffle ring.
Said radial elastic actuates the quilt elastic claw that the even axial through slot that extends to rear end face that is provided with of outer peripheral face is divided into along the resilient sleeve rear end that structure is the resilient sleeve rear end.
Be set with sleeve pipe on the said contact pin, the rear end face of this sleeve pipe cooperates with the front end face of ring flange.
Be set with the axle sleeve of protective casing on the outer peripheral face of described sleeve pipe.
The technical scheme of optical connector assembly of the present invention is following:
A kind of optical connector assembly comprises first connector and second connector, and said first connector, second connector all comprise housing; Has the shoulder hole that contact element is set in the housing; Be provided with contact element in this shoulder hole, the contact element of any comprises a ring flange in said first connector and second connector, and this ring flange has one and extends to the installation channel of rear end face from front end face; The front end of this installation channel is set with contact pin; Ring flange is provided with an axle collar near the outer peripheral face of front end face, is provided with a thin neck structure near the outer peripheral face of rear end face, and this thin neck structure place is set with a resilient sleeve; Be set with a spring between the axle collar of this resilient sleeve and ring flange; Spring top is contained between the corresponding end face of the ring flange axle collar and resilient sleeve, and the leading portion of said resilient sleeve center pit cooperates with the thin neck structure outer peripheral face sliding support before of ring flange, and said resilient sleeve center pit afterbody has reducing stepped hole section that radial elastic actuates structure and cooperates with the outer peripheral face of neck structure carefully; The outer wall of said resilient sleeve is provided with a baffle ring, and the rear end face of this baffle ring cooperates with counter structure block on the corresponding first or second optical connector housing.
Counter structure on the said optical connector housing is that the tail cover that is screwed onto on the housing tail end outer peripheral face is fitted in the pressing plate on the housing, and the front end face of this pressing plate cooperates with the rear end face of said baffle ring.
Said radial elastic actuates the quilt elastic claw that the even axial through slot that extends to rear end face that is provided with of outer peripheral face is divided into along the resilient sleeve rear end that structure is the resilient sleeve rear end.
Be set with sleeve pipe on the contact pin of described second connector contact, the rear end face of this sleeve pipe cooperates with the front end face of ring flange.
Be set with the axle sleeve of protective casing on the outer peripheral face of the sleeve pipe of said second connector contact.
The front end top of the spring of the contact element of first, second connector of optical connector of the present invention and optical connector assembly is contained in the axle collar of ring flange, and the top, rear end is contained on the front end face of resilient sleeve, and ring flange directly keeps the stability of spring; Replace protheca of the prior art with resilient sleeve, reduced the radial dimension of contact element, thereby reduced the radial dimension of optical connector front end; Further; Because the spring housing of contact element of the present invention is contained on the outer peripheral face of ring flange, ring flange can keep the stability of spring, and spring unstable phenomenon can not take place when resilient sleeve is installed; Installation is more prone to, and the efficiency of assembling of optical connector is high.
Description of drawings
Fig. 1 is the cut-open view of existing optical connector;
Fig. 2 is the cut-open view of the structural representation of optical connector embodiment 1 of the present invention;
Fig. 3 is the left view (not containing dust cover) of Fig. 2;
Fig. 4 is the cut-open view of optical connector contact element among Fig. 2;
Fig. 5 is the cut-open view of ring flange among Fig. 4;
Fig. 6 is the cut-open view of resilient sleeve among Fig. 4;
Fig. 7 is the right view of Fig. 6;
Fig. 8 is the cut-open view of the structural representation of optical connector embodiment 2 of the present invention;
Fig. 9 is the left view (not containing dust cover) of Fig. 8;
Figure 10 is the cut-open view of optical connector contact element among Fig. 8.
Embodiment
Embodiment 1:
In Fig. 2,3; A kind of optical connector; Comprise optical connector housing 21; Be provided with optical connector contact element 31 in the optical connector housing 21, optical connector contact element 31 comprises that the ring flange and that a front end is provided with contact pin is arranged on the resilient sleeve on the ring flange side face, and the front end of resilient sleeve is provided with and is used for and baffle ring that the optical connector housing is fixing.The front end of optical connector contact element 31 is through the front end face and the location of the step surface on the housing 21 of ring flange, and the rear end is through the rear end face and pressing plate 51 location of the baffle ring on the resilient sleeve.The tail cover 61 that pressing plate 51 is spirally connected on the optical connector housing 21 tail end outer peripheral faces is pressed on the connector shell 21, is provided with anti-rotation structure between pressing plate 51 and the optical connector housing 21.The rear end of ring flange is provided with and is used for fixing optical cable 81 shaft parts; This shaft part is the axle that is provided with more than one annular groove; Annular groove on the shaft part is used to increase friction force makes optical cable fixing more firm; The aramid fiber that inserts that section outer fiber of ring flange is used for fixing on the shaft part of optical cable in the ring flange rear end through the pressure welding case pressing and fixing, thereby has realized optical cable 81 fixing on ring flange.The tail end of optical connector is provided with the rubber sheath 71 that is installed on optical connector housing 21 afterbodys.The front end of optical connector is provided with dust cover, the transportation of optical connector with deposit in the process, dust cover is used for preventing that dust from getting into optical connector.The contact element of present embodiment is fixedly mounted in the housing through the front end face of its ring flange and the rear end face of its resilient sleeve baffle ring; The decrement error of spring is just relevant with the mismachining tolerance of ring flange and resilient sleeve so, thereby because present embodiment has saved the error that protheca of the prior art has been avoided the decrement of the spring that the mismachining tolerance by protheca causes.
In Fig. 4, Fig. 5, Fig. 6, Fig. 7; The contact element of the optical connector among corresponding above-mentioned Fig. 2, Fig. 3 comprises a ring flange 4; The front end of ring flange 4 installation channel is provided with contact pin 3, is interference fit between contact pin 3 and the installation channel, and the rear end face of ring flange 4 is provided with and is used to insert optical fiber feeding mouth; Optical fiber in the optical cable 81 feeds a mouthful installation channel that gets into through ring flange from optical fiber and gets into the center pit of contact pin 3; Realize being connected with contact pin 3, the installation channel on the ring flange 4 is installed the part of contact pin 3 greater than the part that feeds optical fiber, and both form a cascaded surface in the joint; The end face of contact pin 3 cooperates with this cascaded surface, and the determining positions of cascaded surface the degree of depth that contact pin 3 inserts the ring flange installation channel.Be equipped with a resilient sleeve 6 through spring 5 elasticity that are sleeved on the ring flange outer peripheral face on the outer peripheral face of ring flange 4, the front end of spring 5 is stuck on the shaft shoulder of the axle collar of ring flange 4 front ends, and the rear end of spring 5 is used to push the front end of resilient sleeve 6.The position that resilient sleeve 6 is installed on the outer peripheral face of ring flange 4 is a thin neck structure 9, and the rear end face 14 of resilient sleeve 6 does not cooperate the globality that keeps in touch part with the backstage terrace 10 of thin neck structure 9 when contact element is installed in the optical connector housing.The center pit of resilient sleeve 6 is the pre-large post-small shoulder hole of radius; The diameter of wealthy mouthful of section of the center pit of resilient sleeve 6 and the equal diameters of ring flange 4 outer peripheral faces; The reducing section of the center pit of resilient sleeve 6 cooperates with the outer peripheral face of thin neck structure 9; The wealthy mouthful section of the center pit of resilient sleeve 6 cooperates with ring flange 4 outer peripheral face sliding supports before the thin neck structure 9, and the cascaded surface of the center pit of resilient sleeve 6 and the foreground terrace of neck structure 9 carefully exceed and cooperate.The front end of resilient sleeve 6 is provided with and is used for and the fixing baffle ring 11 of optical connector housing, and after contact element was installed in the optical connector housing, the rear end face of baffle ring 11 was used for cooperating with pressing plate 51 blocks.The rear end of resilient sleeve 6 evenly is provided with four axial through slots 12 that extend to rear end face along outer peripheral face, the rear end of resilient sleeve 6 is divided into four elastic claws 13 of symmetry.Elastic claw 13 makes the rear end of resilient sleeve 6 have elasticity; Resilient sleeve 6 is installed to 4 last times of ring flange from the rear end of ring flange 4; Because the diameter of the reducing section of the center pit of resilient sleeve 6 is little and the outer peripheral face diameter of ring flange 4, elastic claw 13 will open during installation, when resilient sleeve 6 moves forward to thin neck structure 9 places of ring flange 4; Elastic claw 13 restores to the original state, and resilient sleeve 6 rear end faces cooperate with the backstage terrace 10 of thin neck structure 9.
In the present embodiment directly with cable crimp on the end section of ring flange tail end, when the number of contact element is less when being one or two, also can be on the structure that is arranged in addition on the optical connector housing with cable crimp, that works better protection optical cable.
Embodiment 2:
In Fig. 8, Fig. 9; Optical connector comprises housing 512; Be provided with contact element 712 in the housing 512, contact element 712 comprises that the ring flange and that a front end is provided with contact pin is arranged on the resilient sleeve on the ring flange side face, and the front end of resilient sleeve is provided with and is used for and baffle ring that the optical connector housing is fixing; Be set with sleeve pipe on the outer peripheral face of contact pin, the outer peripheral face of sleeve pipe is provided with the axle sleeve of protective casing.The step surface location of the shoulder hole that front end face and the optical connector housing 512 of the front end of contact element 712 through sleeve pipe is provided with contact element; The rear end of contact element 712 is through the rear end face and pressing plate 812 location that are arranged on the housing 512 of the baffle ring of resilient sleeve; The sleeve 912 that pressing plate 812 is screwed onto on the housing 512 rear end outer peripheral faces is fitted on the housing 512; Be provided with the pressure welding case 102 that is fixed on the sleeve 912 in the rear end inner chamber of sleeve 912, pressure welding case 102 is fixed the aramid fiber of outer fiber with the interior cover 112 in the hole that sets within it.Sleeve 912 tail ends are fixed with the sheath 122 that is arranged on protection optical cable on optical cable 152 outer peripheral faces through nut 132.The front end of optical connector housing is provided with to be used for being connected with intermateable connector and is fixedly coupled nut 312, is provided with dust cap in the space between coupling nut 312 and the housing 512, and dust cap is used for preventing that dust from getting into connector in the transportation that connects when depositing.
In Figure 10; The difference of the contact element of the contact element of present embodiment and embodiment 1 is: be set with sleeve pipe 221 on the contact pin of optical connector contact element; The rear end face of sleeve pipe 221 cooperates with the front end face of the ring flange 421 of optical connector contact element; The outer peripheral face of sleeve pipe 221 is provided with the axle sleeve 121 of protective casing 221, and the front end face of contact element axle sleeve 121 is used for cooperating with the step surface of the shoulder hole of optical connector housing 512; The tail end of the ring flange of optical connector contact element is not provided with the structure of the aramid fiber of pressing optical fiber, and aramid fiber has been pressed together on the housing of optical connector.
First connector of optical connector assembly of the present invention is the connector in the foregoing description 1, and second connector of optical connector assembly is the connector in the foregoing description 2.
It is elastic claw that the radial elastic of the resilient sleeve of the above embodiment of the present invention actuates structure, the C jacket that also has the axial shrinkage function.The elastic claw of the embodiment of the invention is four, also can be two, three, five or six.
Claims (10)
1. optical connector; Comprise housing, have the shoulder hole that contact element is set in the housing, be provided with contact element in this shoulder hole; It is characterized in that: said optical connector contact element comprises a ring flange; This ring flange has one and extends to the installation channel of rear end face from front end face, and the front end of this installation channel is set with contact pin, and ring flange is provided with an axle collar near the outer peripheral face of front end face; Outer peripheral face near rear end face is provided with a thin neck structure; This thin neck structure place is set with a resilient sleeve, is set with a spring between the axle collar of this resilient sleeve and ring flange, and this spring top is contained between the corresponding end face of the ring flange axle collar and resilient sleeve; The leading portion of said resilient sleeve center pit cooperates with the thin neck structure outer peripheral face sliding support before of ring flange; Said resilient sleeve center pit afterbody has the reducing stepped hole section that radial elastic actuates structure and cooperates with the outer peripheral face of thin neck structure, and the outer wall of said resilient sleeve is provided with a baffle ring, and the rear end face of this baffle ring cooperates with counter structure block on the optical connector housing.
2. optical connector according to claim 1 is characterized in that: the counter structure on the said optical connector housing is that the tail cover that is screwed onto on the housing tail end outer peripheral face is fitted in the pressing plate on the housing, and the front end face of this pressing plate cooperates with the rear end face of said baffle ring.
3. optical connector according to claim 1 is characterized in that: said radial elastic actuates the quilt elastic claw that the even axial through slot that extends to rear end face that is provided with of outer peripheral face is divided into along the resilient sleeve rear end that structure is the resilient sleeve rear end.
4. according to claim 1 or 2 or 3 described optical connectors, it is characterized in that: be set with sleeve pipe on the said contact pin, the rear end face of this sleeve pipe cooperates with the front end face of ring flange.
5. optical connector according to claim 4 is characterized in that: the axle sleeve that is set with protective casing on the outer peripheral face of described sleeve pipe.
6. optical connector assembly; Comprise first connector and second connector; Said first connector, second connector all comprise housing, have the shoulder hole that contact element is set in the housing, are provided with contact element in this shoulder hole; It is characterized in that: the contact element of any comprises a ring flange in said first connector and second connector; This ring flange has one and extends to the installation channel of rear end face from front end face, and the front end of this installation channel is set with contact pin, and ring flange is provided with an axle collar near the outer peripheral face of front end face; Outer peripheral face near rear end face is provided with a thin neck structure; This thin neck structure place is set with a resilient sleeve, is set with a spring between the axle collar of this resilient sleeve and ring flange, and spring top is contained between the corresponding end face of the ring flange axle collar and resilient sleeve; The leading portion of said resilient sleeve center pit cooperates with the thin neck structure outer peripheral face sliding support before of ring flange; Said resilient sleeve center pit afterbody has the reducing stepped hole section that radial elastic actuates structure and cooperates with the outer peripheral face of thin neck structure, and the outer wall of said resilient sleeve is provided with a baffle ring, the counter structure block cooperation on the rear end face of this baffle ring and the corresponding first or second optical connector housing.
7. optical connector assembly according to claim 6; It is characterized in that: the counter structure on the said optical connector housing is that the tail cover that is screwed onto on the housing tail end outer peripheral face is fitted in the pressing plate on the housing, and the front end face of this pressing plate cooperates with the rear end face of said baffle ring.
8. optical connector assembly according to claim 6 is characterized in that: said radial elastic actuates the quilt elastic claw that the even axial through slot that extends to rear end face that is provided with of outer peripheral face is divided into along the resilient sleeve rear end that structure is the resilient sleeve rear end.
9. according to claim 6 or 7 or 8 described optical connector assemblies, it is characterized in that: be set with sleeve pipe on the contact pin of described second connector contact, the rear end face of this sleeve pipe cooperates with the front end face of ring flange.
10. optical connector assembly according to claim 9 is characterized in that: the axle sleeve that is set with protective casing on the outer peripheral face of the sleeve pipe of said second connector contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102244546A CN101876730B (en) | 2009-10-02 | 2009-11-20 | Optical connector and connector assembly |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910205623.1 | 2009-10-02 | ||
| CN200910205623 | 2009-10-02 | ||
| CN2009102244546A CN101876730B (en) | 2009-10-02 | 2009-11-20 | Optical connector and connector assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101876730A CN101876730A (en) | 2010-11-03 |
| CN101876730B true CN101876730B (en) | 2012-09-05 |
Family
ID=43019334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102244546A Active CN101876730B (en) | 2009-10-02 | 2009-11-20 | Optical connector and connector assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101876730B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269269A (en) * | 2011-07-20 | 2011-12-07 | 中航光电科技股份有限公司 | Dustproof cover fixedly provided with connecting chain |
| CN103135179A (en) * | 2013-03-27 | 2013-06-05 | 上海航天科工电器研究院有限公司 | Optical fiber contact and fixing device thereof |
| CN105161906B (en) * | 2015-08-31 | 2018-05-18 | 中航光电科技股份有限公司 | Connector and its dust-proof cover, dustproof cover and anti-lost connector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947182A (en) * | 1974-10-29 | 1976-03-30 | International Telephone & Telegraph Corporation | Fiber optic connector with axial tolerance relief |
| CN101644807A (en) * | 2009-09-08 | 2010-02-10 | 中航光电科技股份有限公司 | Novel optical fiber contact piece |
| CN201583688U (en) * | 2009-10-02 | 2010-09-15 | 中航光电科技股份有限公司 | Optical connector and connector component |
-
2009
- 2009-11-20 CN CN2009102244546A patent/CN101876730B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947182A (en) * | 1974-10-29 | 1976-03-30 | International Telephone & Telegraph Corporation | Fiber optic connector with axial tolerance relief |
| CN101644807A (en) * | 2009-09-08 | 2010-02-10 | 中航光电科技股份有限公司 | Novel optical fiber contact piece |
| CN201583688U (en) * | 2009-10-02 | 2010-09-15 | 中航光电科技股份有限公司 | Optical connector and connector component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101876730A (en) | 2010-11-03 |
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