CN109149250B - Inter-board connector and plug and socket thereof - Google Patents
Inter-board connector and plug and socket thereof Download PDFInfo
- Publication number
- CN109149250B CN109149250B CN201710509205.6A CN201710509205A CN109149250B CN 109149250 B CN109149250 B CN 109149250B CN 201710509205 A CN201710509205 A CN 201710509205A CN 109149250 B CN109149250 B CN 109149250B
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- socket
- shell
- plug
- guide
- guide structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
Abstract
The invention relates to an inter-board connector, a plug and a socket thereof, wherein the inter-board connector comprises the plug and the socket which are mutually matched and spliced, the front end of the plug is a splicing end, the plug comprises a plug shell, the plug shell comprises an inner shell and an outer shell which are mutually float-mounted, a contact element is mounted on the inner shell, the socket comprises a socket shell, a first guide structure for limiting the relative position of the outer shell and the socket shell is arranged between the outer shell and the socket shell, a second guide structure for limiting the relative position of the inner shell and the socket shell is arranged between the inner shell and the socket shell, and the guide splicing between the socket shell and the outer shell and between the socket shell and the inner shell is realized through the synchronous guide matching of the first guide structure and the second guide structure, so that the alignment precision is higher when the socket is butted with the socket, the butt joint is more stable.
Description
Technical Field
The invention relates to an inter-board connector and a plug and a socket thereof.
Background
The circuit printed board is an important electronic component in the communication equipment cabinet and is divided into a back board which is longitudinally arranged and a sub-board which is horizontally arranged; in the operation of the equipment, communication data needs to be transmitted between the back board and the daughter board, and the communication mode has a certain transmission limit due to the defect of electric signal transmission. And if data communication between backplate and the daughter board adopts optical fiber transmission, can transmit the high many than current electricity in transmission capacity, the connector assembly that is used for realizing optical signal transmission between backplate and the daughter board of current this kind is including being used for setting up the backplate socket on corresponding backplate and being used for setting up the daughter board plug on corresponding daughter board, the daughter board plug includes plug housing and the contact unit of assembly in plug housing, and when backplate socket and daughter board plug install respectively on corresponding daughter board and backplate, the problem of plug positioning accuracy will appear, if the problem that the location is inaccurate will appear plug difficulty and dock.
The prior art is provided with a floating connection, for example, in chinese patent document No. CN105161902B, a connector assembly is disclosed, which includes a plug and a socket, the plug includes a plug housing, the socket includes a socket housing, an inner housing and an outer housing assembled with each other in a floating manner are provided with the plug housing, and a contact unit is provided on the inner housing, and then alignment between the plug housing and the outer housing is achieved by a guiding structure provided between the socket housing and the outer housing during the process of re-plugging.
Disclosure of Invention
The invention aims to provide an inter-board connector, which aims to solve the problem that the guide precision is not enough when the inter-board connector in the prior art is installed in a floating way; the invention also aims to provide a plug of the board-to-board connector; the invention also aims to provide a socket of the board-to-board connector.
In order to achieve the above object, a first technical solution of the inter-board connector of the present invention is:
the inter-board connector comprises a plug and a socket which are mutually matched and connected, the front end of the plug is a connection end, the plug comprises a plug shell, the plug shell comprises an inner shell and an outer shell which are mutually installed in a floating mode, a contact element is installed on the inner shell, the socket comprises a socket shell, the outer shell is provided with a first guide structure used for limiting the relative position of the outer shell and the socket shell, and a second guide structure used for limiting the relative position of the inner shell and the socket shell is arranged between the socket shells.
The second technical scheme of the inter-board connector is as follows: on the basis of the first technical scheme of the inter-board connector, the first guide structure and the second guide structure are both key groove guide structures, and each key groove guide structure comprises a guide key and a guide key which is in guide fit with the guide key along the front-back direction.
The third technical scheme of the inter-board connector is as follows: in a second aspect of the inter-board connector according to the present invention, one of the guide key and the guide groove of the first guide structure is provided on at least one of upper and lower sides of the plug, and the other is provided on a side surface of the receptacle corresponding to the guide groove, and one of the guide key and the guide groove of the second guide structure is provided on at least one of left and right sides of the plug, and the other is provided on the receptacle.
The fourth technical scheme of the inter-board connector is as follows: on the basis of the first, second or third technical scheme of the inter-board connector, contact elements on the plug and the socket are LC type plugs, two opposite LC type plugs are in butt joint through ceramic sleeves, an installation sleeve for fixing the ceramic sleeves in a penetrating mode is arranged on the inner shell or the socket shell, a claw wrapping structure is arranged at the front end of the installation sleeve, and a chamfer is arranged at an inner hole of the claw wrapping structure and forms a third guide structure for guiding and inserting the corresponding LC type plug.
The fifth technical scheme of the inter-board connector is as follows: on the basis of the first, second or third technical scheme of the board-to-board connector, a locking mechanism is further arranged between the plug and the socket and comprises a locking groove formed in one of the socket shell and the inner shell and a spring claw arranged on the other and matched with the locking groove in a hooking mode.
The sixth technical scheme of the inter-board connector is as follows: on the basis of the fifth technical scheme of the inter-board connector, the elastic claws are arranged on the left side and the right side of the socket shell and extend backwards, and the elastic claws are positioned on the outer sides of the second guide structures.
The first technical scheme of the plug is as follows:
the plug comprises a plug shell, wherein the plug shell comprises an inner shell and an outer shell which are assembled in a mutual floating mode, a contact element is installed on the inner shell, a first guide structure used for guiding insertion of the socket shell to limit the relative position of the outer shell and the socket shell is arranged on the outer shell, and a second guide structure used for guiding insertion of the socket shell to limit the relative position of the inner shell and the socket shell is arranged on the inner shell.
The second technical scheme of the plug is as follows: on the basis of the first technical scheme of the plug, the first guide structure and the second guide structure are both key groove guide structures, and each key groove guide structure comprises a guide key and a guide groove which is matched with the guide key in a guide mode along the front-back direction.
The third technical scheme of the plug is as follows: on the basis of the second technical scheme of the plug, one of the guide groove and the guide key of the first guide structure is arranged on at least one side surface of the upper side and the lower side of the outer shell, and one of the guide groove and the guide key of the second guide structure is arranged on at least one side surface of the left side and the right side of the inner shell.
The fourth technical scheme of the plug is as follows: on the basis of the first, second or third technical scheme of the plug, the contact element is an LC type plug, a ceramic sleeve is connected onto the LC type plug, an installation sleeve for the ceramic sleeve to penetrate and fix is arranged on the inner shell, a claw wrapping structure is arranged at the front end of the installation sleeve, a chamfer is arranged at an inner hole of the claw wrapping structure, and the chamfer forms a third guide structure for guiding and inserting the corresponding LC type plug.
The fifth technical scheme of the plug is as follows: on the basis of the first, second or third technical scheme of the plug, the inner shell is provided with a locking structure for locking the socket shell and the inner shell, and the locking structure comprises a locking groove which is arranged on the inner shell and used for hooking and hanging a spring claw on the socket shell, or comprises a spring claw which is arranged on the inner shell and used for hooking and matching with the locking groove on the socket shell.
The sixth technical scheme of the plug is as follows: on the basis of the fifth technical scheme of the plug, the locking mechanism comprises grooves arranged on the left side and the right side of the inner shell, and the locking grooves are positioned on the outer side of the second guide structure.
The first technical scheme of the socket is as follows:
the socket comprises a socket shell, wherein a contact element is installed in the socket shell, a first guide structure used for guiding the outer shell to penetrate the relative position of the outer shell and the socket shell is limited is arranged on the socket shell, and a second guide structure used for guiding the inner shell to penetrate the relative position of the inner shell and the socket shell is limited is arranged on the socket shell.
The second technical scheme of the socket is as follows: on the basis of the first technical scheme of the socket, the first guide structure and the second guide structure are both key groove guide structures, and each key groove guide structure comprises a guide key and a guide groove which is in guide fit with the guide key along the front-back direction.
The third technical scheme of the socket is as follows: on the basis of the second technical scheme of the socket, the first guide structures are arranged on at least one side surface of the upper side and the lower side of the socket shell, and the second guide structures are arranged on at least one side surface of the left side and the right side of the socket shell.
The fourth technical scheme of the socket is as follows: on the basis of the first, second or third technical scheme of the socket, the contact element is an LC type plug, the LC type plug is connected with a ceramic sleeve, the socket shell is provided with an installation sleeve for the ceramic sleeve to penetrate and fix, the front end of the installation sleeve is provided with a claw wrapping structure, an inner hole of the claw wrapping structure is provided with a chamfer, and the chamfer forms a third guide structure for guiding and inserting the corresponding LC type plug.
The fifth technical scheme of the socket is as follows: on the basis of the first, second or third technical solutions of the socket of the present invention, the socket housing is provided with a locking structure for locking the socket housing and the inner housing, and the locking structure includes a locking groove provided on the socket housing for hooking the latch claw on the inner housing, or includes a latch claw provided on the socket housing for hooking and matching with the locking groove on the inner housing.
The sixth technical scheme of the socket is as follows: on the basis of the fifth technical scheme of the socket, the locking mechanism comprises elastic claws arranged on the left side and the right side of the socket shell, and the elastic claws are positioned on the outer sides of the second guide structures.
The invention has the beneficial effects that: compared with the prior art, the inter-board connector provided by the invention has the advantages that the first guide structure for limiting the relative position of the outer shell and the socket shell is arranged between the outer shell and the socket shell, the second guide structure for limiting the relative position of the inner shell and the socket shell is arranged between the inner shell and the socket shell, and the guide splicing between the socket shell and the outer shell as well as between the socket shell and the inner shell is realized through the synchronous guide matching of the first guide structure and the second guide structure, so that the alignment precision is higher when the socket and the socket are butted, and the butt joint is more stable.
Drawings
FIG. 1 is a schematic diagram of one embodiment of a board-to-board connector of the present invention;
FIG. 2 is an exploded view of the plug structure of FIG. 1;
FIG. 3 is an exploded view of the socket structure of FIG. 1;
FIG. 4 is a schematic view of an assembled configuration of the first guide structure;
FIG. 5 is a schematic view of an assembled structure of the second guide structure;
FIG. 6 is an assembled view of the third guide structure;
fig. 7 is an enlarged view of a portion a in fig. 6.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
An embodiment of the inter-board connector of the present invention is shown in fig. 1 to 7, and the inter-board connector is applied to an LC type optical fiber inter-board connector, and includes a daughter board 2 and a backplane 1, wherein a plug 4 is fixed on the daughter board 2, a socket 3 is fixed on the backplane 1, and a front end of the plug 4 is used as a plugging end, the plug 4 includes an outer shell 5 fixed on the daughter board 2 and an inner shell 6 assembled with the outer shell 5 in a floating manner, a plugging hole extending forward and backward is provided on the inner shell 6, a mounting sleeve 7 extending forward and backward is provided in the plugging hole, a contact unit is provided in the mounting sleeve 7, the contact unit includes a first LC type pin, a ceramic sleeve 9 is sleeved on a front end of the first LC type pin, the ceramic sleeve 9 is fixed in the mounting sleeve, the socket includes a socket housing 8 and a second LC type pin extending backward and is provided in the socket housing 8, and the inter-board connector realizes signal transmission through the first LC type pin and the second LC type pin in the ceramic sleeve .
In order to ensure the guiding alignment precision when the plug is plugged with the socket, a first guiding structure, a second guiding structure and a third guiding structure are arranged between the plug 4 and the socket 3. Wherein first guide structure is including setting up cantilever 81 of the back extension on socket housing 8 up end, still including setting up the slot 51 that supplies cantilever 81 direction grafting that the up end of outer casing 5 extended forward, the opening of this slot 51 is towards the below, in this embodiment, cantilever 81 has two of left and right intervals arrangement, corresponding slot 51 also has two, when plug and socket are pegged graft, realize socket housing 8 fixed for the left and right sides relative position of outer casing 5 through the grafting cooperation of cantilever 81 and slot 51, thereby realize the alignment between socket housing 8 and outer casing 5 in this direction.
The second guiding structure includes guiding arms 82 extending backward and arranged on the left and right sides of the socket housing 8, guiding key slots 85 extending forward and backward are arranged on the opposite sides of the two guiding arms 82, and guiding keys 62 extending forward are correspondingly arranged on the left and right sides of the inner housing 6, when the plug is in plug-in fit with the socket, the fixing of the relative position of the socket housing 8 relative to the inner housing 6 in the up-down direction is realized through the plug-in fit of the guiding key slots 85 and the guiding keys 62, so that the alignment between the socket housing 8 and the inner housing 6 in the direction is realized.
The alignment between the contact unit and the contacted unit can be basically ensured by two-stage guiding alignment of the first guiding structure and the second guiding structure when the socket and the socket are plugged, a third guiding structure is arranged for further ensuring the radial relative position between the second LC type contact pin and the corresponding ceramic sleeve 9, the third guiding structure comprises three wrapping claws 71 which are arranged at intervals along the axial direction at the front end of the mounting sleeve 7, each wrapping claw 71 is bent inwards, and the space between the three wrapping claws 71 forms a channel for the second LC type contact pin to be inserted. In order to ensure the coaxiality of the first LC contact pin and the second LC contact pin, chamfers 72 are arranged on the opposite inner sides of the front end surfaces of the wrapping claws 71, the second LC contact pin realizes guiding insertion matching through the inclined surfaces of the chamfers 72, and the coaxial precision of the first LC contact pin and the second LC contact pin is further ensured in the insertion process of the plug and the socket.
A locking mechanism used for locking the plug and the socket is further arranged between the plug and the socket, in order to guarantee guiding insertion precision, the inner shell 6 floats relative to the outer shell 5, the locking mechanism is arranged between the socket shell 8 and the inner shell 6, the locking mechanism comprises elastic claws 83 which are arranged on the outer side of a guide arm on the socket shell 8 and extend forwards and backwards, the rear ends of the two elastic claws 83 are respectively provided with a lug 84 extending inwards, the lug 84 and the guide arm 82 are arranged at intervals inside and outside, the rear end surface of the lug 84 is a wedge-shaped surface, correspondingly, the hanging plates 61 are arranged on the outer sides of the guide keys on the left side surface and the right side surface of the inner shell 6, the outer side surfaces of the hanging plates 81 are provided with a stop block, and. In the process of plugging the plug and the socket, the convex block and the stop block are matched with each other in a wedge shape to expand the elastic claw 83 outwards, after the convex block passes through the stop block backwards, the elastic claw 83 contracts inwards under the action of self restoring force, and the stop block and the convex block are matched in a blocking manner to realize the locking between the plug and the socket. In this embodiment, set up link plate 61 into elastic structure, when needs unblock, inwards press the link plate, can realize the mechanism unblock.
In other embodiments, the specific form of the first guide structure may be interchanged with the second guide structure; only one slot can be arranged, the mounting sleeve can be not provided with a wrapping claw, and a chamfer matched with the second LC contact pin in a guiding way is directly arranged on the front end face; the board-to-board connector may also be applied to other types of plugs such as SC plugs, FC plugs, etc.; the first guide structure may be disposed on the same side as the second guide structure; the guide structure can be in inserted connection with the shaft hole in a guide fit manner; the cantilever and the slot in the first guide structure can be installed in a replaceable way, and the guide key slot and the guide key in the corresponding second guide structure can also be installed in a replaceable way.
Claims (15)
1. Connector between boards, including plug and the socket that mutual adaptation was pegged graft, the front end of plug is the grafting end, the plug includes plug housing, plug housing is including the interior casing and the shell body of mutual floating installation, install the contact on the interior casing, the socket includes socket housing, the shell body with be provided with the first guide structure who is used for restricting the relative position of shell body and socket housing between the socket housing, its characterized in that: the utility model discloses a socket, including interior casing, socket casing, interior casing with be equipped with the second guide structure who is used for restricting the relative position of interior casing and socket casing between the socket casing, contact on plug and the socket is LC type plug, and docks through ceramic bushing between two relative LC type plugs, be provided with on interior casing or the socket casing and be used for supplying ceramic bushing to wear to adorn and fixed installation cover, the front end of installation cover is provided with package claw structure, the hole department of package claw structure is provided with the chamfer, and the chamfer constitutes the third guide structure that supplies the LC type plug direction male that corresponds.
2. The board-to-board connector according to claim 1, characterized in that: first guide structure and second guide structure are keyway guide structure, keyway guide structure include the direction key and with the direction key along fore-and-aft direction complex guide way.
3. The board-to-board connector according to claim 2, characterized in that: one of the guide key and the guide groove of the first guide structure is arranged on at least one side face of the upper side and the lower side of the plug, the other guide key and the guide groove of the first guide structure are arranged on the side face, corresponding to the plug, of the socket, one of the guide key and the guide groove of the second guide structure is arranged on at least one side face of the left side and the right side of the plug, and the other guide key and the guide groove of the second guide structure are arranged on the socket.
4. A board-to-board connector according to any one of claims 1 to 3, characterized in that: and a locking mechanism is also arranged between the plug and the socket and comprises a locking groove arranged on one of the socket shell and the inner shell and a spring claw arranged on the other and matched with the locking groove in a hooking way.
5. The board-to-board connector according to claim 4, characterized in that: the elastic claws are arranged on the left side and the right side of the socket shell and extend backwards, and the elastic claws are located on the outer side of the second guide structure.
6. The plug, including plug housing, plug housing is including the interior casing and the shell body of mutual unsteady assembly, install the contact on the interior casing, be equipped with on the shell body and be used for socket housing direction cartridge with the first guide structure of the relative position of restriction shell body and socket housing, its characterized in that: be equipped with the second guide structure who is used for socket shell direction cartridge in order to restrict the relative position of interior casing and socket shell on the interior casing, the contact is LC type plug, and is connected with ceramic bushing on the LC type plug, be provided with on the interior casing and be used for supplying ceramic bushing to wear to adorn and fixed installation cover, the front end of installation cover is provided with package claw structure, the hole department of package claw structure is provided with the chamfer, and the chamfer constitutes the third guide structure that supplies the LC type plug direction male that corresponds.
7. The plug of claim 6, wherein: first guide structure and second guide structure are keyway guide structure, keyway guide structure include the direction key and with the direction key along fore-and-aft direction complex guide way.
8. The plug of claim 7, wherein: one of the guide groove and the guide key of the first guide structure is arranged on at least one side surface of the upper side and the lower side of the outer shell, and one of the guide groove and the guide key of the second guide structure is arranged on at least one side surface of the left side and the right side of the inner shell.
9. The plug according to any one of claims 6 to 8, wherein: the locking mechanism is used for locking the socket shell and the inner shell and comprises a locking groove which is formed in the inner shell and used for the elastic claw hook on the socket shell, or an elastic claw which is arranged on the inner shell and used for being matched with the locking groove hook on the socket shell.
10. The plug of claim 9, wherein: the locking mechanism comprises grooves arranged on the left side and the right side of the inner shell, and the locking grooves are located on the outer side of the second guide structure.
11. The socket, including the socket casing, install the contact in the socket casing, be equipped with on the socket casing and be used for the shell body direction to wear the first guide structure of dress in order to restrict the relative position of shell body and socket casing, its characterized in that: the utility model discloses a socket, including socket casing, contact piece, ceramic bushing, mounting sleeve, chamfer, socket casing, contact piece, ceramic bushing, mounting sleeve, socket casing, be equipped with the second guide structure that is used for interior casing direction to wear the dress in order to restrict the relative position of interior casing and socket casing on the socket casing, the contact piece is LC type plug, and is connected with ceramic bushing on the LC type plug, be provided with on the socket casing and be used for supplying ceramic bushing to wear the dress and fixed mounting sleeve, the front end of mounting sleeve is provided with package claw.
12. The receptacle of claim 11, wherein: first guide structure and second guide structure are keyway guide structure, keyway guide structure include the direction key and with the direction key along fore-and-aft direction complex guide way.
13. The receptacle of claim 12, wherein: one of the guide groove and the guide key of the first guide structure is arranged on at least one side face of the upper side and the lower side of the socket shell, and one of the guide groove and the guide key of the second guide structure is arranged on at least one side face of the left side and the right side of the socket shell.
14. A socket according to any one of claims 11 to 13, wherein: the socket is characterized in that a locking mechanism used for locking the socket shell and the inner shell is arranged on the socket shell, and the locking mechanism comprises a locking groove arranged on the socket shell and used for hooking a spring claw on the inner shell, or a spring claw arranged on the socket shell and used for hooking and matching the locking groove on the inner shell.
15. The receptacle of claim 14, wherein: the locking mechanism comprises elastic claws arranged on the left side and the right side of the socket shell, and the elastic claws are located on the outer side of the second guide structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509205.6A CN109149250B (en) | 2017-06-28 | 2017-06-28 | Inter-board connector and plug and socket thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509205.6A CN109149250B (en) | 2017-06-28 | 2017-06-28 | Inter-board connector and plug and socket thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149250A CN109149250A (en) | 2019-01-04 |
| CN109149250B true CN109149250B (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710509205.6A Active CN109149250B (en) | 2017-06-28 | 2017-06-28 | Inter-board connector and plug and socket thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149250B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824937B (en) * | 2022-05-05 | 2023-11-07 | 深圳市爱特姆科技有限公司 | Radio frequency fine-pitch board-to-board connector with high plugging fault tolerance |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5305052B2 (en) * | 2011-11-08 | 2013-10-02 | Ｓｍｋ株式会社 | Connector for plate cable |
| CN102856726B (en) * | 2012-07-11 | 2014-11-05 | 浙江中杭电子有限公司 | Universal floating type connector base |
| CN102780129B (en) * | 2012-07-30 | 2014-07-30 | 广州市恒吉电子科技有限公司 | Floating connector between plates |
| US9039433B2 (en) * | 2013-01-09 | 2015-05-26 | Amphenol Corporation | Electrical connector assembly with high float bullet adapter |
| CN106299841B (en) * | 2016-08-09 | 2018-03-06 | 华为技术有限公司 | A kind of connector shell and connector |
| CN106654719B (en) * | 2016-11-30 | 2019-07-26 | 中航光电科技股份有限公司 | A kind of plug casing component and daughter board plug |
| CN106842434B (en) * | 2017-03-20 | 2018-11-13 | 中航光电科技股份有限公司 | Fiber optic connector assembly and optical fiber connector, optical fiber connector housing unit |
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2017
- 2017-06-28 CN CN201710509205.6A patent/CN109149250B/en active Active
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| CN109149250A (en) | 2019-01-04 |
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