CN110208914B - Photoelectric conversion contact and photoelectric conversion connector - Google Patents
Photoelectric conversion contact and photoelectric conversion connector Download PDFInfo
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- CN110208914B CN110208914B CN201810168372.3A CN201810168372A CN110208914B CN 110208914 B CN110208914 B CN 110208914B CN 201810168372 A CN201810168372 A CN 201810168372A CN 110208914 B CN110208914 B CN 110208914B
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- photoelectric conversion
- connector
- cylindrical shell
- contact
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4245—Mounting of the opto-electronic elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to a photoelectric conversion contact element and a photoelectric conversion connector in the field of connectors. The photoelectric conversion unit is arranged in the contact member to form a photoelectric conversion contact member, the photoelectric conversion contact member can be installed in the connection housing, and photoelectric conversion with different channel numbers and different functions can be realized by assembling different types of contact members. Compared with the prior art, the volume of the connector is effectively reduced, the integration degree of the connector is improved, and the connector is convenient to use and maintain.
Description
Technical Field
The invention relates to the field of connectors, in particular to a photoelectric conversion contact element and a photoelectric conversion connector using the same.
Background
The photoelectric conversion connector is used for converting optical signals into electric signals and then transmitting the signals through an electric connector plug, conversion and transmission between the optical signals and the electric signals in the connector are usually achieved by lengthening a connector tail accessory and adding a printed board circuit in the tail accessory. For example, a photoelectric conversion connector disclosed in chinese patent application publication No. CN106646782A and publication No. 2017.05.10 includes an electrical plug, a photoelectric conversion portion and a tail attachment, where the photoelectric conversion portion includes a photoelectric conversion unit, and the photoelectric conversion unit includes three printed boards sequentially arranged at intervals from front to back.
The connector with the structure form has larger volume and can realize more complex circuit functions. But also because its volume is too big, the afterbody annex is longer, influences the installation and uses, does not conform to the development direction that the connector is miniaturized, integrates.
Disclosure of Invention
The invention aims to provide a photoelectric conversion contact element to solve the problems of large volume and low integration degree of the existing photoelectric conversion connector; it is also an object of the present invention to provide a photoelectric conversion connector using the contact.
In order to achieve the above object, the photoelectric conversion contact element of the present invention has the technical scheme that: the photoelectric conversion contact comprises a cylindrical shell which is installed in a connector shell, an electric contact and a photoelectric conversion unit which are used for being plugged with the adaptive connector are sequentially arranged in the cylindrical shell along the axial direction of the cylindrical shell, and the photoelectric conversion unit comprises a printed board connected with the electric contact and a photoelectric converter, one end of the photoelectric converter is connected with the printed board, and the other end of the photoelectric converter is used for being connected with an optical cable.
The beneficial effects are that: the photoelectric conversion unit is arranged in the contact member to form a photoelectric conversion contact member, the photoelectric conversion contact member can be installed in the connection housing, and photoelectric conversion with different channel numbers and different functions can be realized by assembling different types of contact members. Compared with the prior art, the volume of the connector is effectively reduced, the integration degree of the connector is improved, and the connector is convenient to use and maintain.
Further, to facilitate the connection of the photoelectric converter with the pigtail, the photoelectric converter has an optical pin for connecting the pigtail.
There are various types of electrical contacts, and in order to further reduce the volume of the photoelectric conversion contact, the electrical contacts are differential contacts.
On the basis of any scheme, the outer peripheral surface of the cylindrical shell is provided with a large-diameter section and a small-diameter section which are axially adjacent, and the large-diameter section is provided with a positioning convex ring for realizing axial positioning when the cylindrical shell is installed in the connector shell.
Furthermore, on the basis that the cylindrical shell is provided with a positioning convex ring, the positioning convex ring is provided with a mistake-proofing single key for realizing circumferential positioning when the cylindrical shell is installed in the connector shell, so that the correctness of hole positions when the contact element is installed is ensured.
Furthermore, on the basis that the cylindrical shell is provided with a positioning convex ring, the positioning convex ring is provided with an anti-rotation milling flat, so that the contact element is prevented from integrally rotating in the connector shell.
Furthermore, on the basis that the cylindrical shell is provided with the anti-rotation milling flat, for facilitating the processing of the anti-rotation single key, the anti-rotation milling flat is provided with two symmetrical anti-rotation milling flat keys, wherein one anti-rotation milling flat is provided with the anti-rotation single key.
The cylindrical shell is provided with an anti-rotation milling flat and an anti-error single key arranged on the anti-rotation milling flat, an inner step surface is arranged at the connecting position of the large-diameter section and the small-diameter section on the cylindrical shell, and the electric contact is blocked by the inner step surface in the direction towards the plugging direction.
Furthermore, a glue filling hole is formed in the small-diameter section, and a glue flowing ring groove corresponding to the glue filling hole and a bonding hole radially communicated with the glue flowing ring groove are formed in the electric contact piece.
Furthermore, the large-diameter section is provided with an inner blocking platform for blocking the printed board in the plugging direction, and the cylindrical shell is provided with a clamping ring for blocking the photoelectric converter on one side of the photoelectric converter, which is far away from the printed board.
The technical scheme of the photoelectric conversion connector is as follows: the photoelectric conversion connector comprises a connector shell, an insulator and a photoelectric conversion contact piece arranged in the insulator, wherein the photoelectric conversion contact piece comprises a cylindrical shell installed in the connector shell, an electric contact piece and a photoelectric conversion unit which are used for being plugged with the adaptive connector are sequentially arranged in the cylindrical shell along the axial direction of the cylindrical shell, and the photoelectric conversion unit comprises a printed board connected with the electric contact piece and a photoelectric converter, one end of the photoelectric converter is connected with the printed board, and the other end of the photoelectric converter is used for being connected with an optical cable.
The beneficial effects are that: the photoelectric conversion unit is arranged in the contact member to form a photoelectric conversion contact member, the photoelectric conversion contact member can be installed in the connection housing, and photoelectric conversion with different channel numbers and different functions can be realized by assembling different types of contact members. Compared with the prior art, the volume of the connector is effectively reduced, the integration degree of the connector is improved, and the connector is convenient to use and maintain.
Further, to facilitate the connection of the photoelectric converter with the pigtail, the photoelectric converter has an optical pin for connecting the pigtail.
There are various types of electrical contacts, and in order to further reduce the volume of the photoelectric conversion contact, the electrical contacts are differential contacts.
On the basis of any scheme, the outer peripheral surface of the cylindrical shell is provided with a large-diameter section and a small-diameter section which are axially adjacent, and the large-diameter section is provided with a positioning convex ring for realizing axial positioning when the cylindrical shell is installed in the connector shell.
Furthermore, on the basis that the cylindrical shell is provided with a positioning convex ring, the positioning convex ring is provided with a mistake-proofing single key for realizing circumferential positioning when the cylindrical shell is installed in the connector shell, so that the correctness of hole positions when the contact element is installed is ensured.
Furthermore, on the basis that the cylindrical shell is provided with a positioning convex ring, the positioning convex ring is provided with an anti-rotation milling flat, so that the contact element is prevented from integrally rotating in the connector shell.
Furthermore, on the basis that the cylindrical shell is provided with the anti-rotation milling flat, for facilitating the processing of the anti-rotation single key, the anti-rotation milling flat is provided with two symmetrical anti-rotation milling flat keys, wherein one anti-rotation milling flat is provided with the anti-rotation single key.
The cylindrical shell is provided with an anti-rotation milling flat and an anti-error single key arranged on the anti-rotation milling flat, an inner step surface is arranged at the connecting position of the large-diameter section and the small-diameter section on the cylindrical shell, and the electric contact is blocked by the inner step surface in the direction towards the plugging direction.
Furthermore, a glue filling hole is formed in the small-diameter section, and a glue flowing ring groove corresponding to the glue filling hole and a bonding hole radially communicated with the glue flowing ring groove are formed in the electric contact piece.
Furthermore, the large-diameter section is provided with an inner blocking platform for blocking the printed board in the plugging direction, and the cylindrical shell is provided with a clamping ring for blocking the photoelectric converter on one side of the photoelectric converter, which is far away from the printed board.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a photoelectric conversion contact according to the present invention;
fig. 2 is a perspective view of a photoelectric conversion contact;
FIG. 3 is a cross-sectional view of FIG. 2;
in the figure: 1-cylindrical shell, 2-electric contact piece, 3-printed board, 4-laser, 5-tail fiber, 6-insulator, 7-central hole contact pin, 8-crimping sleeve, 9-small diameter part, 10-large diameter part, 11-positioning convex ring, 12-contact piece stopping step, 13-printed board stopping step, 14-glue pouring hole, 15-glue flowing ring groove, 16-rotation-preventing milling flat, 17-mistake-preventing single key, 18-optical cable, 19-bonding hole and 20-snap ring.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
A first embodiment of the photoelectric conversion contact according to the present invention, as shown in fig. 1 to 3, includes a cylindrical housing 1, and an electric contact 2, a printed board 3, a laser 4, which are provided in the cylindrical housing 1; the cylindrical shell 1 is a cylindrical shell, and not only supports and protects elements in the shell, but also can realize electromagnetic shielding; the electric contact 2 in this embodiment is a differential contact 8, and can be interchanged with a differential contact 8 fitted on any product, and the differential contact includes an insulator 6 and 4 central hole contact pins 7 assembled on the insulator 6, and can transmit 4-channel high-speed electric signals at the same time.
The printed board 3 is arranged parallel to the axis of the cylindrical shell 1 and is welded with the differential contact piece through a central hole contact pin 7 for processing electric signals. Specifically, the printed board 3 has a block size: 12mm (length) × 6mm (width) × 1mm (thickness); in other embodiments, printed board 3 may be formed by assembling a plurality of printed boards 3.
The laser 4 and the printed board 3 assembly realize conversion and transmission between electric signals and optical signals in a welding mode. The laser 4 and the tail fiber 5 form a laser tail fiber component by bonding the optical contact pin, and DG-3S glue is adopted during bonding; the optical fiber comprises an optical cable 18 and a beam tube, the compression joint sleeve 8 and the aramid fiber are compressed, the tail optical cable is guaranteed to have certain tensile resistance, and the problem that the optical fiber is broken when an operator inserts and pulls out a product can be solved in the using process of the product.
Further, the cylindrical shell 1 has a large diameter portion 10 and a small diameter portion 9 arranged in this order along the axial direction thereof, and a positioning convex ring 11 is provided on the large diameter portion 10, and the positioning convex ring 11 is used for realizing axial positioning when the cylindrical shell 1 is mounted in the connector housing. The insulator 6 is provided with a glue flowing ring groove 15 and a bonding hole 15 which is communicated with the glue flowing ring groove 15 in the radial direction, the small diameter portion 9 is provided with two glue pouring holes 14 corresponding to the glue flowing ring groove 15, the glue pouring holes 14 are Distributed (DG) -3S, glue pouring can be carried out twice, and firmness after glue pouring is guaranteed.
A contact retaining step 12 for axially retaining the electrical contact 2 is formed at the junction of the small diameter portion 9 and the large diameter portion 10. A printed board stopping step 13 is provided on the inner wall of the large diameter portion 10 at a position close to the right end of the insulator 6. A snap ring 20 for blocking the laser 4 is arranged on the inner wall of the cylindrical shell 1 on the side of the laser 4 away from the printed board 3.
In addition, the positioning convex ring 11 is symmetrically provided with two anti-rotation milling flats 16, wherein one anti-rotation milling flat 16 is provided with an anti-mistake single key 17; the rotation-preventing milling flat 16 can prevent the connector from rotating integrally, and the error-preventing single key 17 ensures that the product cannot be inserted reversely. The assembly uniqueness of the product during the opposite insertion is ensured, and the phenomena of signal non-continuity and the like are avoided.
Compared with the prior art, the photoelectric conversion is realized in the contact piece, and the photoelectric conversion with different channel numbers and different functions can be realized by assembling the contact pieces with different types in the connector, so that the length of the connector is effectively shortened, and the connector is convenient to use and maintain.
In addition, the laser tail fiber component can be used as an independent functional component, when the circuit configuration on the printed board 3 is replaced by a detector, the device can be replaced by the detector for use, the shape difference between the replaced functional component and the original laser tail fiber component is small, and the cylindrical shell 1 is unchanged, so that the laser tail fiber component can be integrally combined and replaced at any time, and is convenient.
The second embodiment is different from the first embodiment in that: other shapes of the cylindrical housing, such as rectangular, may be provided, with the outer shape of the electrical contacts matching the inner shape of the cylindrical housing. In addition, other forms of electrical contacts are also used in place of differential contacts; the pin contacts on the insulator may also be configured as socket contacts.
In an embodiment of the photoelectric conversion connector of the present invention, the photoelectric conversion connector includes a connector housing, an insulator provided in the connector housing, and a photoelectric conversion contact provided in the insulator, and a structure of the photoelectric conversion contact is the same as that of any one of the above-described embodiments of the photoelectric conversion contact of the present invention; therefore, the description will not be repeated.
Claims (18)
1. Photoelectric conversion contact, its characterized in that: including being arranged in installing the tube-shape shell in the connector casing, be equipped with electric contact and the photoelectric conversion unit that is used for pegging graft with the adaptation connector along its axial in the tube-shape shell in proper order, photoelectric conversion unit includes the printing board that is connected with electric contact and one end is connected with the printing board, the other end is used for the photoelectric converter of connecting cable, and the tube-shape shell has big footpath section and the path section that sets gradually along its axial, be equipped with the encapsulating hole in the path section, be equipped with the gumming ring groove that corresponds with the encapsulating hole position on the electric contact and radially communicate the adhesion hole of gumming ring groove.
2. The photoelectric conversion contact according to claim 1, wherein: the photoelectric converter is provided with an optical pin for connecting a tail fiber.
3. The photoelectric conversion contact according to claim 1, wherein: the electrical contacts are differential contacts.
4. The photoelectric conversion contact according to any one of claims 1 to 3, wherein: and the large-diameter section is provided with a positioning convex ring for realizing axial positioning when the cylindrical shell is arranged in the connector shell.
5. The photoelectric conversion contact according to claim 4, wherein: and the positioning convex ring is provided with a mistake-proofing single key for realizing circumferential positioning when the cylindrical shell is arranged in the connector shell.
6. The photoelectric conversion contact according to claim 4, wherein: and the positioning convex ring is provided with an anti-rotation milling flat.
7. The photoelectric conversion contact according to claim 6, wherein: the anti-rotation milling flat is provided with two symmetrical anti-rotation milling flat bodies, wherein one anti-rotation milling flat body is provided with an anti-mistake single key.
8. The photoelectric conversion contact according to claim 7, wherein: an inner step surface is arranged at the connecting position of the large-diameter section and the small-diameter section on the cylindrical shell, and the electric contact is blocked by the inner step surface in the direction towards the plugging direction.
9. The photoelectric conversion contact according to claim 8, wherein: the large-diameter section is provided with an inner blocking platform for blocking the printed board in the inserting direction, and the cylindrical shell is provided with a clamping ring for blocking the photoelectric converter on one side of the photoelectric converter, which is far away from the printed board.
10. Photoelectric conversion connector, including connector housing, insulator and the photoelectric conversion contact piece of setting in the insulator, its characterized in that: the photoelectric conversion contact comprises a cylindrical shell used for being installed in a connector shell, an electric contact and a photoelectric conversion unit which are used for being connected with an adaptive connector in an inserting mode are sequentially arranged in the cylindrical shell along the axial direction of the cylindrical shell, the photoelectric conversion unit comprises a printed board connected with the electric contact, one end of the printed board is connected with the printed board, and the other end of the printed board is used for being connected with a photoelectric converter of an optical cable, the cylindrical shell is provided with a large-diameter section and a small-diameter section which are sequentially arranged along the axial direction of the cylindrical shell, a glue pouring hole is formed in the small-diameter section, and a glue flowing ring groove corresponding to the position of the glue.
11. The photoelectric conversion connector according to claim 10, wherein: the photoelectric converter is provided with an optical pin for connecting a tail fiber.
12. The photoelectric conversion connector according to claim 10, wherein: the electrical contacts are differential contacts.
13. The photoelectric conversion connector according to any one of claims 10 to 12, wherein: and the large-diameter section is provided with a positioning convex ring for realizing axial positioning when the cylindrical shell is arranged in the connector shell.
14. The photoelectric conversion connector according to claim 13, wherein: and the positioning convex ring is provided with a mistake-proofing single key for realizing circumferential positioning when the cylindrical shell is arranged in the connector shell.
15. The photoelectric conversion connector according to claim 13, wherein: and the positioning convex ring is provided with an anti-rotation milling flat.
16. The photoelectric conversion connector according to claim 15, wherein: the anti-rotation milling flat is provided with two symmetrical anti-rotation milling flat bodies, wherein one anti-rotation milling flat body is provided with an anti-mistake single key.
17. The photoelectric conversion connector according to claim 16, wherein: an inner step surface is arranged at the connecting position of the large-diameter section and the small-diameter section on the cylindrical shell, and the electric contact is blocked by the inner step surface in the direction towards the plugging direction.
18. The photoelectric conversion connector according to claim 17, wherein: the large-diameter section is provided with an inner blocking platform for blocking the printed board in the inserting direction, and the cylindrical shell is provided with a clamping ring for blocking the photoelectric converter on one side of the photoelectric converter, which is far away from the printed board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168372.3A CN110208914B (en) | 2018-02-28 | 2018-02-28 | Photoelectric conversion contact and photoelectric conversion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168372.3A CN110208914B (en) | 2018-02-28 | 2018-02-28 | Photoelectric conversion contact and photoelectric conversion connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110208914A CN110208914A (en) | 2019-09-06 |
| CN110208914B true CN110208914B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810168372.3A Active CN110208914B (en) | 2018-02-28 | 2018-02-28 | Photoelectric conversion contact and photoelectric conversion connector |
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| CN (1) | CN110208914B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443435A (en) * | 2020-03-11 | 2020-07-24 | 上海航天科工电器研究院有限公司 | Plastic optical cable active connector |
| CN113555712B (en) * | 2021-09-18 | 2021-12-14 | 四川华丰科技股份有限公司 | Connector for converting difference into video |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262999Y (en) * | 2008-08-12 | 2009-06-24 | 中航光电科技股份有限公司 | Contact member and fixed structure thereof and printed board electric connector with the structure |
| CN202710800U (en) * | 2012-07-13 | 2013-01-30 | 航天时代电子技术股份有限公司 | Photoelectric conversion connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087384A (en) * | 2009-12-07 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber coupling connector |
| CN102736187B (en) * | 2012-06-13 | 2015-04-29 | 中航光电科技股份有限公司 | Pin component for optical fiber adaptor connector |
| US9297972B2 (en) * | 2012-07-30 | 2016-03-29 | Glenair, Inc. | Advanced fiber-optic contact and method |
| CN103915693B (en) * | 2013-01-04 | 2016-05-04 | 富士康(昆山)电脑接插件有限公司 | Micro coaxial cable connector assembly |
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2018
- 2018-02-28 CN CN201810168372.3A patent/CN110208914B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262999Y (en) * | 2008-08-12 | 2009-06-24 | 中航光电科技股份有限公司 | Contact member and fixed structure thereof and printed board electric connector with the structure |
| CN202710800U (en) * | 2012-07-13 | 2013-01-30 | 航天时代电子技术股份有限公司 | Photoelectric conversion connector |
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| CN110208914A (en) | 2019-09-06 |
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