Rapid butt joint adapter for high-return-loss optical contact element
By designing a fast docking adapter for high return loss optical contacts, using technical means such as neutral packaging shell, ceramic sleeve and guide pin, the problems of poor test timeliness and cumbersome operation of optical fiber connectors in the prior art are solved, and efficient and accurate docking effect is achieved.
Patent Information
- Application Number
- CN202420816751.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the test of low insertion loss combined with high return loss optical fiber connectors, the prior art has problems of poor timeliness and cumbersome operations, making it difficult to ensure docking accuracy and efficiency.
A high return loss optical contact quick docking adapter is designed, using a neutral packaging shell, ceramic sleeve, small disk head screw and guide pin, which is connected and locked through the guide pin and screw, and the high-precision ceramic sleeve and guide keyway of the encapsulated shell achieves docking accuracy and quick and easy docking.
It realizes fast and precise docking of high return loss optical contacts, reduces test time and cost, and improves the timeliness and accuracy of docking.
Smart Images
Figure CN222653141U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of adapters, in particular to a high return loss optical contact quick docking adapter. Background Art
[0002] An adapter is an interface converter, which can be a separate hardware interface device that allows a hardware or electronic interface to connect to other hardware or electronic interfaces, or an information interface.
[0003] With the continuous improvement of the transmission capacity of optical fiber communication systems, the transmission rate of single-channel optical fiber is gradually increasing, and the application of connectors in high-speed optical fiber communication systems and analog optical communication systems is gradually increasing. The demand for testing optical fiber connectors with low insertion loss and high return loss is also increasing. The accuracy and timeliness of the test play an important role in connector production inspection.
[0004] At present, in the field of low insertion loss combined with high return loss optical fiber connectors, the optical fiber connector itself is usually used to perform docking tests on optical contact patch cords to ensure docking accuracy. However, the patch cords need to be removed during testing, which has the disadvantages of poor timeliness and cumbersome operation, and has certain limitations. Utility Model Content
[0005] The utility model aims to provide a high return loss optical contact quick docking adapter to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high return loss optical contact quick docking adapter, comprising a packaging shell, a ceramic sleeve, a small pan head screw and a guide pin, the packaging shell comprising a first shell and a second shell, the first shell and the second shell are both provided with a convex column on the opposite back surface, a connecting groove is provided in the middle of the convex column, a mounting groove connected to the connecting groove is provided in the middle of the first shell and the second shell, and the ceramic sleeve is provided in the mounting groove;
[0007] Preferably, screw holes, positioning grooves and guide grooves are provided on the opposite surfaces of the first shell and the second shell, wherein the positioning grooves pass through the first shell and the second shell, and the screw holes and positioning grooves on the first shell are respectively aligned with the positioning grooves and screw holes on the second shell, a small pan head screw passes through the positioning groove and is threadedly connected in the screw hole to lock the first shell and the second shell, the guide grooves on the first shell and the second shell are aligned with each other, and the guide pins are inserted in the guide grooves.
[0008] Preferably, the adapter has a Haversian structure design and adopts a neutral encapsulation shell to make the adapter parts more universal. The adapter is butted and locked by guide pins and screws, so that the structures of both ends of the adapter are completely the same and interchangeable.
[0009] Preferably, a high-precision ceramic sleeve is used inside the adapter to ensure the circumferential accuracy of the contacts when they are docked, so that the end faces of the high-return-loss optical contacts on the jumper can be well docked, ensuring excellent optical performance parameters such as insertion loss and return loss.
[0010] Preferably, a guide keyway is provided on the side of the connecting groove, and the adapter uses a packaging shell to package and position the ceramic sleeve, and guides and circularly positions the ceramic sleeve through the guide keyway of the packaging shell and the convex key on the contact piece. The docking is accurate, quick and easy, and can ensure the angle and accuracy of high return loss optical contacts when docking.
[0011] Preferably, the first shell and the second shell have the same specifications to ensure symmetrical arrangement of the two shells.
[0012] Preferably, the boss on the first shell and the boss on the second shell are both integrally formed to improve overall stability and strength.
[0013] Preferably, a flared opening is provided at the top of the positioning groove, and the flared opening is used to hide the pan head of the small pan head screw.
[0014] Preferably, both ends of the guide pin are provided with chamfers and rounded corners respectively, and the chamfers and rounded corners are provided to facilitate smooth transition of the guide pin when the press-fit guide pin is butted against the packaging shell.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The adapter uses a neutral packaging shell. When using it, there is no need to specially select a matching Haval module, which greatly reduces the manufacturing and management costs of the adapter and reduces the testing time.
[0017] The adapter is butted and locked by guide pins and screws, so that the structures of both ends of the adapter are completely identical and interchangeable.
[0018] The adapter uses a packaging shell to package and position the ceramic sleeve, and uses the keyway of the packaging shell and the convex key on the contact to guide and position the circumference. The docking is high in accuracy, quick and easy, and can ensure the angle and accuracy of high return loss optical contacts when docking.
[0019] The adapter uses a high-precision ceramic sleeve inside to ensure the circumferential accuracy of the contacts when they are docked, so that the high return loss optical contact end faces on the jumper can be well docked, ensuring excellent optical performance parameters such as insertion loss and return loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a front sectional structural schematic diagram of the utility model;
[0021] Figure 2This is a schematic diagram of the cross-sectional structure of the utility model;
[0022] Figure 3 It is a schematic diagram of the side structure of the utility model;
[0023] Figure 4 This is a schematic diagram of the guide pin structure of the utility model.
[0024] In the figure: 1, packaging shell; 11, first shell; 12, second shell; 101, boss; 1011, connecting groove; 1012, guide keyway; 102, mounting groove; 103, screw hole; 104, positioning groove; 105, flaring; 106, guide groove; 2, ceramic sleeve; 3, small pan head screw; 4, guide pin; 401, fillet; 402, chamfer. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] See also Figure 1-4The utility model provides a technical solution: including a packaging shell 1, a ceramic sleeve 2, a small pan head screw 3 and a guide pin 4, the packaging shell 1 includes a first shell 11 and a second shell 12, the first shell 11 and the second shell 12 are both provided with a boss 101 on the opposite back sides, a connecting groove 1011 is opened in the middle of the boss 101, and an installation groove 102 connected to the connecting groove 1011 is opened in the middle of the first shell 11 and the second shell 12, and the ceramic sleeve 2 is arranged in the installation groove 102.
[0029] Furthermore, screw holes 103, positioning grooves 104 and guide grooves 106 are provided on the opposing surfaces of the first shell 11 and the second shell 12, wherein the positioning groove 104 passes through the first shell 11 and the second shell 12, and the screw holes 103 and positioning grooves 104 on the first shell 11 are respectively aligned with the positioning grooves 104 and screw holes 103 on the second shell 12, and the small pan head screw 3 passes through the positioning groove 104 and is threadedly connected in the screw hole 103 to lock the first shell 11 and the second shell 12, and the guide grooves 106 on the first shell 11 and the second shell 12 are aligned with each other, and the guide pin 4 is inserted in the guide groove 106.
[0030] Furthermore, the adapter has a Haversian structure design and adopts a neutral encapsulation shell 1 to make the adapter parts more universal. The adapter is butted and locked by a guide pin 4 and a screw, so that the structures of both ends of the adapter are completely the same and interchangeable.
[0031] Furthermore, a high-precision ceramic sleeve 2 is used inside the adapter to ensure the circumferential accuracy of the contacts when they are docked, so that the end faces of the high return loss optical contacts on the jumper can be well docked, ensuring excellent optical performance parameters such as insertion loss and return loss.
[0032] Furthermore, a guide key slot 1012 is provided on the side of the connection slot 1011, and the adapter adopts the packaging shell 1 to package and position the ceramic sleeve 2, and guides and circularly positions the convex keys on the low insertion loss and high return loss optical contacts through the guide key slot 1012 of the packaging shell 1. The docking is high in precision, quick and easy, and can ensure the angle and precision of the high return loss optical contacts when docking.
[0033] Furthermore, the first shell 11 and the second shell 12 have the same specifications to ensure the symmetrical arrangement of the first shell 11 and the second shell 12 .
[0034] Furthermore, the boss 101 on the first shell 11 and the boss 101 on the second shell 12 are both integrally formed to improve overall stability and strength.
[0035] Furthermore, a flared opening 105 is provided at the top of the positioning groove 104 , and the flared opening 105 is used to hide the pan head of the small pan head screw 3 .
[0036] Furthermore, both ends of the guide pin 4 are provided with a chamfer 402 and a rounded corner 401 , respectively. The chamfer 402 and the rounded corner 401 are provided to facilitate the smooth transition of the guide pin 4 when the guide pin 4 is pressed and connected to the packaging shell 1 .
[0037] In summary, the adapter ceramic sleeve 2 is encapsulated inside by two encapsulating shells 1, and the two encapsulating shells 1 are guided to dock by guide pins 4. After the docking is fully closed, two small pan head screws 3 are used to symmetrically lock the two ends. The encapsulating shell 1 is provided with a high-precision angle guide keyway 1012 to cooperate with the convex key on the low insertion loss and high return loss optical contact. When mating, the convex key and the guide keyway 1012 are docked and limited. During testing, the low insertion loss and high return loss optical contacts need to be inserted into the encapsulating shell 1 from both sides of the Haversian structure through the high-precision angle guide keyway 1012. When docking, a certain amount of pressure is manually applied to make the ceramic ferrules on the low insertion loss and high return loss optical contacts tightly docked to ensure that the test docking is in place.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high return loss optical contact quick docking adapter, characterized in that: The invention comprises a packaging shell (1), a ceramic sleeve (2), a small pan head screw (3) and a guide pin (4); the packaging shell (1) comprises a first shell (11) and a second shell (12); the first shell (11) and the second shell (12) are both provided with a convex column (101) on the opposite back sides; a connecting groove (1011) is provided in the middle of the convex column (101); a mounting groove (102) connected to the connecting groove (1011) is provided in the middle of the first shell (11) and the second shell (12); and the ceramic sleeve (2) is arranged in the mounting groove (102); The first shell (11) and the second shell (12) are provided with screw holes (103), positioning grooves (104) and guide grooves (106) on opposite surfaces, wherein the positioning groove (104) passes through the first shell (11) and the second shell (12), and the screw holes (103) and positioning grooves (104) on the first shell (11) are respectively aligned with the positioning grooves (104) and screw holes (103) on the second shell (12), a small pan head screw (3) passes through the positioning groove (104) and is threadedly connected in the screw hole (103) to lock the first shell (11) and the second shell (12), the guide grooves (106) on the first shell (11) and the second shell (12) are aligned with each other, and a guide pin (4) is inserted in the guide groove (106).
2. The high return loss optical contact quick docking adapter according to claim 1, characterized in that: A guide key groove (1012) is provided on the side of the connection groove (1011).
3. The high return loss optical contact quick docking adapter according to claim 1, characterized in that: The first shell (11) and the second shell (12) have the same specifications.
4. The high return loss optical contact quick docking adapter according to claim 1, characterized in that: The convex column (101) on the first shell (11) and the convex column (101) on the second shell (12) are both integrally formed.
5. The high return loss optical contact quick docking adapter according to claim 1, characterized in that: The top of the positioning groove (104) is provided with a flared opening (105).
6. The high return loss optical contact quick docking adapter according to claim 1, characterized in that: Both ends of the guide pin (4) are respectively provided with a chamfer (402) and a rounded corner (401).