An integrated coaxial optoelectrical connector

CN117215002BActive Publication Date: 2026-10-13ZHONGLIANXUNKO (WUHAN) PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202310949063.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-30
Publication Date
2026-10-13
Estimated Expiration
2043-07-30

AI Technical Summary

Technical Problem

[0003]针对现有技术存在的不足,本发明提供了一种一体式同轴光电连接器,可以解决光电复合连接器中光电接触件分立导致的占用空间大、难以实现电信号同轴传输的问题

Benefits of technology

[0025]1、本发明提供的一种一体式同轴光电连接器,光电插孔和光电插针用于同轴内置光纤,同时光电插孔和光电插针对接可以实现电连接,这样采用一组光电复合接触件对接即可实现光电信号传输。其中陶瓷插芯与LC标准插芯在陶瓷套筒内可以高精度光纤对接耦合,能够实现低损耗的单多模光纤信号的传输。弹簧的设置可以保持LC标准插芯与陶瓷插芯在陶瓷套筒内的紧迫对接,满足光学低损耗要求。

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Abstract

The application belongs to the field of photoelectric composite connectors, and provides an integrated coaxial photoelectric connector, which comprises a connector plug and a connector socket; an insulating core is arranged in the connector plug, and an insulating core is arranged in the connector socket; an optical and electrical jack is arranged in the insulating core of the connector plug, and an optical and electrical pin is arranged in the insulating core of the connector socket; the optical and electrical jack is provided with an axial hole, the axial hole is internally provided with a ceramic sleeve and an LC standard plug core, the LC standard plug core is inserted and arranged in the ceramic sleeve at the left end, the optical and electrical pin is fixedly connected with a hollow ceramic plug core at the right end, and the ceramic plug core is inserted and arranged in the ceramic sleeve at the right end and abuts against the left end of the LC standard plug core. The photoelectric connector can realize photoelectric signal transmission by using a group of photoelectric composite contact pieces for butt joint. The ceramic plug core and the LC standard plug core can be high-precision optical fiber butt joint and coupled in the ceramic sleeve, and can realize low-loss single / multi-mode optical fiber signal transmission.
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Description

Technical Field

[0001] This invention belongs to the field of optoelectronic composite connectors, specifically relating to an integrated coaxial optoelectronic connector. Background Technology

[0002] Optoelectronic composite connectors, as a type of special-application active connector, are widely used in monitoring, sensing, and communication equipment and systems in aerospace, aviation, marine, and power systems. These connectors integrate optoelectronic transmission, achieving rapid fiber-optic composite transmission through plug-and-play connections. While current optoelectronic composite connectors integrate optoelectronics into a single unit, they still employ separate contact methods: optical signals connect to optical contacts, and electrical signals connect to electrical contacts. The number of contacts equals the number of transmission channels, resulting in a large size and space requirement in multi-core optoelectronic transmission systems, hindering high-density integration. Furthermore, with a large number of contacts, the cumulative alignment error of the fiber optic signals is significant, leading to substantial fiber optic transmission loss at connector nodes. This results in poor overall optical performance and stability of the connector, particularly in the field of coaxial optoelectronic composite transmission, where mature coaxial optoelectronic integrated connectors have yet to be commercially available. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an integrated coaxial optoelectronic connector, which can solve the problems of large space occupation and difficulty in achieving coaxial transmission of electrical signals caused by the separate optoelectronic contacts in optoelectronic composite connectors.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an integrated coaxial optoelectronic connector, comprising a hollow connector plug and a hollow connector socket, wherein the connector plug and the connector socket are coaxially and fixedly connected.

[0005] The connector plug has a hollow plug insulating core fixed coaxially inside, and the connector socket has a hollow socket insulating core fixed coaxially inside.

[0006] The plug insulating core is coaxially fixed with a photoelectric socket, and the socket insulating core is coaxially fixed with a hollow photoelectric pin.

[0007] The photoelectric socket has an axial hole running through it from left to right. Inside the axial hole, from left to right, there are a contact claw, a ceramic sleeve, an LC standard ferrule, and a spring. The diameters of the left and right ends of the axial hole are smaller than the diameter of the middle part. An annular step is fixed on the inner wall of the axial hole. The spring piece of the contact claw faces to the right and abuts against the left end of the ceramic sleeve. The left end of the contact claw abuts against the inner wall of the left end of the photoelectric socket. The right end of the ceramic sleeve abuts against the annular step. The left end of the LC standard ferrule is inserted into the ceramic sleeve. The left end of the spring is sleeved on the outside of the right end of the LC standard ferrule. The right end of the spring abuts against the inner wall of the right end of the photoelectric socket.

[0008] The photoelectric pin has a hollow ceramic insert fixedly connected to its right end. The right end of the ceramic insert is inserted into the ceramic sleeve and abuts against the left end of the LC standard insert. The contact spring claw holds the outer side of the photoelectric pin.

[0009] Preferably, the photoelectric ferrule includes a hollow electric ferrule contact post, a limiting annular step fixedly sleeved on the outside of the electric ferrule contact post, a welding post fixedly disposed on the left end of the electric ferrule contact post, the contact spring claw's spring clip holding the outside of the electric ferrule contact post, the left end of the ceramic ferrule being fixedly snapped into the inside of the right end of the electric ferrule contact post, and the welding post having optical fiber lead-out axial holes penetrating through the left and right sides;

[0010] The socket insulating core includes a hollow socket core cover and a hollow socket core seat. The left end of the socket core cover is provided with a socket stop spring stepped hole, and a socket stop spring is provided in the socket stop spring stepped hole. The inner spring leaf of the socket stop spring faces to the right. The left end of the socket core cover is provided with a socket guide hole. A socket guide post is fixedly connected to the right end of the socket core seat. The right end of the socket core seat abuts against the left end of the socket core cover. The socket guide post is inserted into the socket guide hole. The inner diameter of the socket core seat is smaller than the diameter of the socket stop spring.

[0011] The right end of the socket core cover is fixedly provided with a first positioning step, and the first positioning step is provided with pin lead-out holes through the left and right sides. The limiting annular step is coaxially sleeved inside the socket core cover. The right end of the limiting annular step abuts against the first positioning step, and the right end of the inner closing spring of the socket stop spring abuts against the left end of the limiting annular step.

[0012] Preferably, the side wall of the welding column is provided with a socket opening fan-shaped groove, the socket opening fan-shaped groove extends to the left end of the welding column, and the left end of the welding column is provided with a socket closing fan-shaped groove.

[0013] Preferably, the connector socket includes a hollow socket tail and a hollow socket housing;

[0014] The right end of the socket tail is provided with an internal thread, and the left end of the socket housing is provided with an external thread. The socket tail is screwed to the socket housing, and the socket core cover and the socket core seat are both bonded and fixed to the inner wall of the socket housing.

[0015] Preferably, the inner wall of the socket housing is fixedly provided with a limiting step, the limiting step is provided with a limiting hole, the first positioning step is embedded in the limiting hole, and the right end of the socket core cover abuts against the limiting step.

[0016] Preferably, the photoelectric socket includes a hollow cylindrical photoelectric socket core and a photoelectric socket stop handle. The left end of the photoelectric socket stop handle is screwed to the right end of the cylindrical photoelectric socket core. The right end of the spring abuts against the left end of the photoelectric socket stop handle. An embedded annular groove is provided on the outer wall of the photoelectric socket core. Optical fiber lead-out holes are provided through the left and right sides of the photoelectric socket stop handle.

[0017] The plug insulating core includes a hollow first stepped cylinder, a hollow second stepped cylinder, and a hollow axial stop post. An annular baffle is fixedly provided at the left end of the first stepped cylinder, and the center of the annular baffle is an axial guide hole. The right end of the first stepped cylinder is fixedly connected to the left end of the second stepped cylinder. The right end of the second stepped cylinder is provided with a plug stop spring stepped hole, and a plug stop spring is provided in the plug stop spring stepped hole. The inner spring plate of the plug stop spring faces left. The right end of the second stepped cylinder is provided with a plug guide hole. A plug guide post is fixedly connected to the left end of the axial stop post. The right end of the second stepped cylinder abuts against the left end of the axial stop post. The plug guide post is inserted into the plug guide hole. The inner diameter of the axial stop post is smaller than the diameter of the plug stop spring.

[0018] The first stepped cylinder is coaxially sleeved on the outside of the photoelectric socket core, the left end of the photoelectric socket core abuts against the annular baffle, and the left end of the inner closing spring of the plug stop spring abuts against the inner sidewall of the left side of the annular groove.

[0019] Preferably, the photoelectric socket stop handle has a plug opening fan-shaped groove on its side wall, the plug opening fan-shaped groove extends to the right end of the photoelectric socket stop handle, and the right end of the photoelectric socket stop handle has a plug closing fan-shaped groove.

[0020] Preferably, the connector plug includes a hollow plug tail, a hollow plug housing, and a hollow plug locking nut.

[0021] The plug tail has an inner wall thread on its left end and an outer wall thread on its right end. The right end of the plug housing is screwed to the left end of the plug tail. The left end of the plug housing is fitted inside the right end of the plug locking nut. A first annular step is fixedly fitted on the outer wall of the left end of the plug housing, and a second annular step is fixedly fitted on the outer wall of the middle part of the plug housing. A movable annular groove is formed between the first annular step and the second annular step. A movable annular plate is fixedly fitted on the inner wall of the right end of the plug locking nut. The movable annular plate is coaxially fitted in the movable annular groove. The first step cylinder, the second step cylinder, and the axial stop post are all bonded and fixed to the inner wall of the plug housing.

[0022] Preferably, the inner wall of the left end of the plug housing is fixedly provided with an axial first annular plate, and the left end of the second stepped cylinder abuts against the axial first annular plate.

[0023] Preferably, both the connector plug and the connector socket are made of metal.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. This invention provides an integrated coaxial optoelectronic connector. Optical jacks and pins are used for coaxial embedded optical fibers. The connection between the optical jacks and pins enables electrical connection, thus achieving optoelectronic signal transmission using a set of composite optoelectronic contacts. The ceramic ferrule and the LC standard ferrule can be precisely coupled within a ceramic sleeve, enabling low-loss transmission of single-mode and multimode fiber signals. A spring mechanism maintains a tight connection between the LC standard ferrule and the ceramic ferrule within the ceramic sleeve, meeting low-loss optical requirements.

[0026] 2. The present invention provides an integrated coaxial optoelectronic connector, wherein the connector plug and connector socket are both made of metal materials, and the socket insulating core and the plug insulating core are isolated to achieve electromagnetic signal shielding function and meet the requirements of radio frequency transmission. Attached Figure Description

[0027] Figure 1 A three-dimensional structural diagram of an integrated coaxial optoelectronic connector during connection and disassembly, provided for an embodiment of the present invention;

[0028] Figure 2 An exploded view of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0029] Figure 3 A three-dimensional structural diagram illustrating the connection between the socket insulating core and the plug insulating core of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0030] Figure 4 A three-dimensional structural diagram of the connection between the photoelectric socket and the photoelectric pin of an integrated coaxial photoelectric connector provided in an embodiment of the present invention;

[0031] Figure 5 A three-dimensional structural diagram of the connection between the photoelectric socket and the photoelectric pin of an integrated coaxial photoelectric connector provided in an embodiment of the present invention;

[0032] Figure 6 A three-dimensional structural diagram of the photoelectric socket of an integrated coaxial photoelectric connector provided in an embodiment of the present invention;

[0033] Figure 7 A three-dimensional structural diagram of the photoelectric pin of an integrated coaxial photoelectric connector provided in an embodiment of the present invention;

[0034] Figure 8 A three-dimensional structural diagram of an integrated coaxial optoelectronic connector, wherein the socket insulating core is sleeved on the outside of the optoelectronic pin, as provided in an embodiment of the present invention;

[0035] Figure 9 An exploded view of the socket insulating core of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0036] Figure 10 A cross-sectional structural diagram of the connection between the socket insulating core and the plug insulating core of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0037] Figure 11 A cross-sectional structural diagram of the socket housing of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0038] Figure 12 A cross-sectional structural diagram of the socket tail of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0039] Figure 13 A cross-sectional structural diagram of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0040] Figure 14 An exploded view of the plug insulating core of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0041] Figure 15 A cross-sectional structural diagram of the plug housing of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0042] Figure 16 A cross-sectional structural diagram of the plug tail of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0043] Figure 17 A cross-sectional view of the plug locking nut of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0044] Figure 18 A three-dimensional structural schematic diagram of the LC standard ferrule of an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0045] Figure 19 A three-dimensional structural diagram of a ceramic ferrule for an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0046] Figure 20 A three-dimensional structural diagram of a ceramic sleeve for an integrated coaxial optoelectronic connector provided in an embodiment of the present invention;

[0047] Figure 21 This is a three-dimensional structural diagram of a socket stop spring for an integrated coaxial optoelectronic connector provided in an embodiment of the present invention.

[0048] The attached diagram lists the components represented by each number as follows:

[0049] 101. Connector plug;

[0050] 1. Plug tail attachment; 11. Inner wall thread; 13. Right composite cable lead-out hole;

[0051] 2. Plug housing; 21. Axial first annular plate; 22. First annular step; 23. Second annular step; 25. Outer wall thread; 26. Movable annular groove;

[0052] 5. Plug locking nut; 51. Internal threaded connection; 52. Movable annular plate;

[0053] 9. Plug insulating core; 91. Axial guide hole; 92. First-step cylinder; 94. Second-step cylinder; 95. Plug stop spring stepped hole; 96. Plug guide hole; 97. Plug guide post; 98. Axial stop post;

[0054] 3. Photoelectric jack; 30. Photoelectric jack core; 32. Contact claw; 33. Axial hole; 34. Ceramic sleeve; 35. Annular groove; 36. LC standard ferrule; 37. Spring; 38. Photoelectric jack stop handle; 39. Open fan-shaped groove; 310. Fiber optic cable exit hole; 311. Closed fan-shaped groove; 313. Annular step;

[0055] 100. Plug stop spring;

[0056] 102. Connector socket;

[0057] 6. Socket tail; 61. Internal thread; 63. Left composite cable lead-out hole;

[0058] 7. Socket housing; 75. External thread; 76. Limiting hole; 78. External thread;

[0059] 4. Insulating core of the socket; 41. First positioning step; 42. Pin lead-out hole; 43. Socket core cover; 44. Socket stop spring step hole; 45. Socket guide hole; 46. Socket guide post; 48. Socket core seat;

[0060] 8. Optical ferrule; 81. Ceramic ferrule; 82. Electrical ferrule contact post; 83. Limiting annular step; 85. Welding post; 86. Open sector slot; 87. Optical fiber lead-out axial hole; 88. Closed sector slot;

[0061] 10. Socket stop spring; 103. Fan-shaped inner closing spring; 104. Opening slot. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to specific embodiments, so that those skilled in the art can more clearly understand the present invention.

[0063] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrally formed structures. Those skilled in the art can understand the specific meaning of these terms in this patent based on the specific circumstances.

[0064] Example 1

[0065] like Figure 1-6 As shown, this embodiment provides an integrated coaxial optoelectronic connector, including a hollow connector plug 101 and a hollow connector socket 102, wherein the connector plug 101 and the connector socket 102 are coaxially and fixedly connected.

[0066] The connector plug 101 has a hollow plug insulating core 9 coaxially fixed inside, and the connector socket 102 has a hollow socket insulating core 4 coaxially fixed inside.

[0067] The plug insulating core 9 is coaxially fixed with a photoelectric socket 3 inside, and the socket insulating core 4 is coaxially fixed with a hollow photoelectric pin 8 inside.

[0068] The photoelectric socket 3 has an axial hole 33 extending through the left and right sides. Inside the axial hole 33, from left to right, there are a contact claw 32, a ceramic sleeve 34, an LC standard ferrule 36, and a spring 37. The diameters of the left and right ends of the axial hole 33 are smaller than the diameter of the middle part. An annular step 313 is fixed on the inner wall of the axial hole 33. The spring piece of the contact claw 32 faces to the right and abuts against the left end of the ceramic sleeve 34. The left end of the contact claw 32 abuts against the inner wall of the left end of the photoelectric socket 3. The right end of the ceramic sleeve 34 abuts against the annular step 313. The left end of the LC standard ferrule 36 is inserted into the ceramic sleeve 34. The left end of the spring 37 is sleeved on the outside of the right end of the LC standard ferrule 36. The right end of the spring 37 abuts against the inner wall of the right end of the photoelectric socket 3.

[0069] The photoelectric pin 8 is fixedly connected to a hollow ceramic ferrule 81 at its right end. The right end of the ceramic ferrule 81 is inserted into the ceramic sleeve 34 and abuts against the left end of the LC standard ferrule 36. The spring clip of the contact claw 32 is held on the outside of the photoelectric pin 8.

[0070] In this embodiment, both the connector plug 101 and the plug insulating core 9 are hollow structures. This allows cables and optical fibers to be introduced into the plug insulating core 9 from the right end of the connector plug 101. Furthermore, since the photoelectric jack 3 has axial holes 33 extending through both sides, optical fibers can be introduced into the interior from the right end of the axial holes 33 and have their end faces processed at the left end of the LC standard ferrule 36. The cable can then be directly connected to the photoelectric jack 3. The plug insulating core 9 can be made of materials with good insulation properties, such as plastic or bakelite.

[0071] Meanwhile, both the connector socket 102 and the socket insulating core 4 are hollow structures, allowing cables and optical fibers to be introduced into the socket insulating core 4 from the left end of the connector socket 102. Furthermore, since both the photoelectric pin 8 and the ceramic ferrule 81 are hollow structures, optical fibers can be introduced from the left end of the photoelectric pin 8 and extend to the right end of the ceramic ferrule 81 for end-face processing, while cables can be directly connected to the photoelectric pin 8. The socket insulating core 4 can be made of materials with good insulation properties, such as plastic or bakelite.

[0072] Based on the above structure, after the connector plug 101 and the connector socket 102 are coaxially fixedly connected, the right end of the ceramic ferrule 81 can be inserted into the ceramic sleeve 34 and abut against the left end of the LC standard ferrule 36, thereby completing the connection of the optical fibers on both sides and realizing optical signal transmission. The spring 37 can maintain a certain clamping force between the LC standard ferrule 36 and the ceramic ferrule 81. In addition, the photoelectric socket 3 and the photoelectric pin 8 are both made of conductive materials. For example, the photoelectric pin 8, the photoelectric socket 3, and the contact claw 32 are all made of brass. The spring of the contact claw 32 presses against the outside of the photoelectric pin 8, so that the photoelectric pin 8 and the photoelectric socket 3 can maintain a stable electrical connection, thereby completing the connection of the cables on both sides and realizing the conduction of electrical transmission.

[0073] In summary, the integrated coaxial optoelectronic connector provided in this embodiment achieves simultaneous transmission of a set of optoelectronic signals by using a coaxial integrated design for the optical and electrical contacts. Furthermore, the optical fiber signal contact is coaxially embedded inside the electrical contact, preserving the cylindrical structure of the electrical contact and enabling coaxial connection of optoelectronic signals to achieve higher requirements for radio frequency signal transmission.

[0074] Example 2

[0075] Based on Example 1, in this example, as Figure 7 As shown, the photoelectric pin 8 may include a hollow electric pin contact post 82, a limiting annular step 83 fixedly sleeved on the outside of the electric pin contact post 82, and a welding post 85 fixedly disposed on the left end of the electric pin contact post 82. The left end of the ceramic ferrule 81 is fixedly snapped into the inside of the right end of the electric pin contact post 82, as shown. Figure 5 As shown, the contact claw 32's spring clips hold the outer side of the electrical connector contact post 82, and the welding post 85 has optical fiber lead-out axial holes 87 extending through it on both sides. Thus, the optical fiber can pass sequentially through the optical fiber lead-out axial holes 87 and the electrical connector contact post 82 to the right end of the ceramic ferrule 81. The cable can then be directly connected to the welding post 85. The inner diameter of the electrical connector contact post 82 and the outer diameter of the ceramic ferrule 81 are set with a negative tolerance, allowing the ceramic ferrule 81 to be embedded and pressed into the right end of the electrical connector contact post 82.

[0076] like Figure 9As shown, the socket insulating core 4 can include a hollow socket core cover 43 and a hollow socket core seat 48. The left end of the socket core cover 43 has a socket stop spring stepped hole 44, within which a socket stop spring 10 is installed. The inner spring leaf of the socket stop spring 10 faces right. The left end of the socket core cover 43 has a socket guide hole 45. The right end of the socket core seat 48 is fixedly connected to a socket guide post 46, which abuts against the left end of the socket core cover 43. The socket guide post 46 passes through the socket guide hole 45. The inner diameter of the socket core seat 48 is smaller than the diameter of the socket stop spring 10. The socket core seat 48 can act as an axial limiter, working in conjunction with the socket core cover 43 to clamp the socket stop spring 10 in the middle. The socket guide hole 45 and the socket guide post 46 can serve as guides, facilitating the quick assembly of the socket core cover 43 and the socket core seat 48.

[0077] The right end of the socket core cover 43 is fixedly provided with a first positioning step 41, and the first positioning step 41 is provided with pin outlet holes 42 for leading out optical fibers on both sides. Figure 8 As shown, the limiting annular step 83 is coaxially sleeved inside the socket core cover 43, as... Figure 10 As shown, the right end of the limiting annular step 83 abuts against the first positioning step 41, while the right end of the inner closing spring of the socket stop spring 10 abuts against the left end of the limiting annular step 83. The first positioning step 41 and the socket stop spring 10 respectively provide axial limiting for the limiting annular step 83 from two directions, preventing the limiting annular step 83 from moving left or right, thereby fixing the photoelectric pin 8 inside the socket insulating core 4. Figure 21 As shown, the socket stop spring 10 has a thin-walled cylindrical structure, with three fan-shaped inner spring plates 103 and an opening groove 104 on the circumference.

[0078] Among them, such as Figure 7 As shown, the welding column 85 has a socket-opening fan-shaped groove 86 on its side wall, which extends to the left end of the welding column 85. A socket-closed fan-shaped groove 88 is also provided at the left end of the welding column 85. The socket-opening fan-shaped groove 86 and the socket-closed fan-shaped groove 88 can be used for cable welding or crimping operations.

[0079] In addition, such as Figure 1-2 As shown, the connector socket 102 may include a hollow socket tail 6 and a hollow socket housing 7;

[0080] like Figure 11-12As shown, the right end of the socket tail attachment 6 has an internal thread 61, and the interior of the socket tail attachment 6 is the left composite cable lead-out hole 63. The left end of the socket housing 7 has an external thread 78. The socket tail attachment 6 is screwed to the socket housing 7. The socket core cover 43 and the socket core seat 48 are both bonded and fixed to the inner wall of the socket housing 7. That is, applying adhesive to the outside of the socket core cover 43 and the socket core seat 48 can bond and fix them to the inner wall of the socket housing 7. The left composite cable lead-out hole 63 is used for the lead-out of optical fiber and cable.

[0081] A limiting step is fixedly provided on the inner wall of the socket housing 7, and a limiting hole 76 is provided on the limiting step, such as... Figure 13 As shown, the first positioning step 41 is embedded in the limiting hole 76, and the right end of the socket core cover 43 abuts against the limiting step. When the socket insulating core 4 is installed into the socket housing 7, the socket insulating core 4 needs to be pushed to the right into the socket housing 7 until the right end of the socket core cover 43 abuts against the limiting step, so that the socket insulating core 4 reaches the preset position. Since the photoelectric pin 8 is fixed inside the socket insulating core 4, the photoelectric pin 8 also reaches the preset position. The limiting step can prevent excessive pushing and interference during subsequent docking.

[0082] Example 3

[0083] Based on Example 2, in this example, as Figure 6 As shown, the photoelectric jack 3 can be a hollow cylindrical photoelectric jack core 30 and a photoelectric jack stop handle 38. The left end of the photoelectric jack stop handle 38 is screwed to the right end of the cylindrical photoelectric jack core 30, and the right end of the spring 37 abuts against the left end of the photoelectric jack stop handle 38. An embedded annular groove 35 is formed on the outer wall of the photoelectric jack core 30, and optical fiber exit holes 310 are provided through the left and right sides of the photoelectric jack stop handle 38. In this way, the optical fiber can pass through the optical fiber exit hole 310 and the axial hole 33 in sequence and extend to the left end of the LC standard ferrule 36. The cable can be directly connected to the photoelectric jack stop handle 38. The photoelectric jack stop handle 38 can axially stop the LC standard ferrule 36 and maintain its elasticity through the spring 37.

[0084] Specifically, when assembling the photoelectric socket 3, the ceramic sleeve 34 is first inserted into the axial hole 33 from the left side. The diameter of the annular step 313 is slightly smaller than the outer diameter of the ceramic sleeve 34, which can stop the ceramic sleeve 34 axially to the right. Then, the contact pawl 32 is inserted into the axial hole 33 from the left side, with the pawl's spring facing right and abutting against the ceramic sleeve 34. After the contact pawl 32 is fully inserted, the left end of the axial hole 33 is rolled to reduce its diameter, thereby axially limiting the contact pawl 32. At the same time, the inner diameter of the spring of the contact pawl 32 is reduced. The outer diameter of the contact claw 32 is smaller than that of the ceramic sleeve 34, while the inner diameter of the ceramic sleeve 34 is larger, so that the contact claw 32 and the ceramic sleeve 34 provide axial positioning between them. The LC standard ferrule 36, after optical fiber pretreatment, is inserted into the axial hole 33 from the right side. The spring 37 is then pushed into the axial hole 33 from the right side, so that the ceramic ferrule end of the LC standard ferrule 36 is inserted into the ceramic sleeve 34. The photoelectric jack stop 38 is screwed in to axially stop the spring 37, and the spring 37 can maintain the backward elasticity of the LC standard ferrule 36.

[0085] like Figure 14 As shown, the plug insulating core 9 includes a hollow first stepped cylinder 92, a hollow second stepped cylinder 94, and a hollow axial stop post 98. An annular baffle is fixedly provided at the left end of the first stepped cylinder 92, with an axial guide hole 91 at its center, through which the photoelectric pin 8 can be inserted. The right end of the first stepped cylinder 92 is fixedly connected to the left end of the second stepped cylinder 94. The right end of the second stepped cylinder 94 has a plug stop spring stepped hole 95, within which a plug stop spring 100 is provided, with the inner spring plate of the plug stop spring 100 facing left. The right end of the second stepped cylinder 94 has a plug guide hole 96. A plug guide post 97 is fixedly connected to the left end of the axial stop post 98, with the right end of the second stepped cylinder 94 abutting against the left end of the axial stop post 98. The plug guide post 97 is inserted into the plug guide hole 96, and the inner diameter of the axial stop post 98 is smaller than the diameter of the plug stop spring 100. The axial stop post 98 serves as an axial limiter, and together with the second stepped cylinder 94, it clamps the plug stop spring 100 in the middle. The plug guide hole 96 and the plug guide post 97 serve as guides, facilitating quick assembly of the second stepped cylinder 94 and the axial stop post 98.

[0086] like Figure 10As shown, the first stepped cylinder 92 is coaxially sleeved on the outside of the photoelectric socket core 30. The left end of the photoelectric socket core 30 abuts against the annular baffle, and the left end of the inner closing spring of the plug stop spring 100 abuts against the inner sidewall of the left side of the annular groove 35. The axial guide hole 91 and the plug stop spring 100 respectively play an axial limiting role on the cylindrical photoelectric socket core 30 from two directions, so that the cylindrical photoelectric socket core 30 cannot move left or right, thereby fixing the photoelectric socket 3 inside the plug insulating core 9.

[0087] Among them, such as Figure 6 As shown, the photoelectric socket stop handle 38 has a plug opening fan-shaped groove 39 on its side wall, which extends to the right end of the photoelectric socket stop handle 38. The right end of the photoelectric socket stop handle 38 has a plug closing fan-shaped groove 311. The plug opening fan-shaped groove 39 and the plug closing fan-shaped groove 311 can be used for cable welding or crimping operations.

[0088] In addition, such as Figure 1-2 As shown, the connector plug 101 may include a hollow plug tail 1, a hollow plug housing 2, and a hollow plug locking nut 5.

[0089] like Figure 16 As shown, the left end of the plug tail attachment 1 is provided with an inner wall thread 11, and the inside of the plug tail attachment 1 is the right composite cable lead-out hole 13, as shown. Figure 15 , 17 As shown, the right end of the plug housing 2 has an outer wall thread 25. The right end of the plug housing 2 is screwed to the left end of the plug tail attachment 1. The left end of the plug housing 2 is fitted inside the right end of the plug locking nut 5. A first annular step 22 is fixedly fitted on the outer wall of the left end of the plug housing 2, and a second annular step 23 is fixedly fitted on the outer wall of the middle part of the plug housing 2. A movable annular groove 26 is formed between the first annular step 22 and the second annular step 23. A movable annular plate 52 is fixedly fitted on the inner wall of the right end of the plug locking nut 5. The movable annular plate 52 is coaxially fitted in the movable annular groove 26. The first step cylinder 92, the second step cylinder 94, and the axial stop post 98 are all bonded and fixed to the inner wall of the plug housing 2. That is, applying glue to the outside of the first step cylinder 92, the second step cylinder 94, and the axial stop post 98 can bond and fix the first step cylinder 92, the second step cylinder 94, and the axial stop post 98 to the inner wall of the plug housing 2. Figure 11 , 17As shown, the right end of the socket housing 7 may be provided with an external thread 75, and the left end of the plug locking nut 5 may be provided with an internal thread 51, so that the socket housing 7 and the plug locking nut 5 can be screwed together and fixed. Since the movable annular plate 52 can rotate circumferentially within the movable annular groove 26, when the socket housing 7 and the plug housing 2 are screwed together and tightened, only the plug locking nut 5 needs to be rotated, that is, the socket housing 7 and the plug housing 2 can remain relatively fixed. The right composite cable lead-out hole 13 is used for the lead-out of optical fiber and cable. A square flange can be fixedly fitted on the outside of the socket housing 7, and four fixing holes can be provided on the side wall of the square flange for easy installation and fixing.

[0090] like Figure 15 As shown, an axial first annular plate 21 is fixedly provided on the inner sidewall of the left end of the plug housing 2, as... Figure 13 As shown, the left end of the second stepped cylinder 94 abuts against the axial first annular plate 21. When inserting the plug insulating core 9 into the plug housing 2, the plug insulating core 9 needs to be pushed to the left into the plug housing 2 until the left end of the second stepped cylinder 94 abuts against the axial first annular plate 21, so that the plug insulating core 9 reaches the preset position. Since the photoelectric socket 3 is fixed inside the plug insulating core 9, the photoelectric socket 3 also reaches the preset position. The axial first annular plate 21 can prevent excessive pushing and interference during subsequent docking.

[0091] In this embodiment, both the connector plug 101 and the connector socket 102 are made of metal. The internal contacts are then isolated using the socket insulating core 4 and the plug insulating core 9, respectively, achieving electromagnetic signal shielding and meeting radio frequency transmission requirements.

[0092] In summary, the assembly method of the integrated coaxial optoelectronic connector provided in this embodiment can include the following steps:

[0093] like Figure 2 As shown, the photoelectric socket 3 is coaxially inserted into the plug insulating core 9 and axially stopped by the plug stop spring 100. Then, glue is applied to the outside of the plug insulating core 9 and it is coaxially placed into the plug housing 2. Then, the plug housing 2 is passed through the plug locking nut 5 to the right and then the plug tail attachment 1 is screwed to the plug housing 2 for fixation.

[0094] The photoelectric pin 8 is coaxially inserted into the socket insulating core 4 and axially stopped by the socket stop spring 10. Then, glue is applied to the outside of the socket insulating core 4 and it is coaxially inserted into the socket housing 7. Then, the socket tail attachment 6 is axially threaded to the left end of the socket housing 7. Finally, the plug locking nut 5 is threaded to the socket housing 7 to achieve the coaxial fixed connection between the photoelectric connector plug and the socket.

[0095] The mechanisms, components, and parts not specifically described in this invention are all existing structures in the prior art and can be purchased directly from the market.

[0096] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0097] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An integrated coaxial optoelectronic connector, characterized in that, Includes a hollow connector plug (101) and a hollow connector socket (102), wherein the connector plug (101) and the connector socket (102) are coaxially and fixedly connected. The connector plug (101) has a hollow plug insulating core (9) coaxially fixed inside, and the connector socket (102) has a hollow socket insulating core (4) coaxially fixed inside. The plug insulating core (9) is coaxially fixed with a photoelectric socket (3), and the socket insulating core (4) is coaxially fixed with a hollow photoelectric pin (8). Both the photoelectric socket (3) and the photoelectric pin (8) are made of materials with conductive properties. The photoelectric socket (3) is provided with an axial hole (33) that runs through the left and right sides. Inside the axial hole (33), from left to right, there are a contact claw (32), a ceramic sleeve (34), an LC standard ferrule (36), and a spring (37). The diameters of the left and right ends of the axial hole (33) are smaller than the diameter of the middle part. An annular step (313) is fixed on the inner wall of the axial hole (33). The spring piece of the contact claw (32) faces to the right and abuts against the left end of the ceramic sleeve (34). The left end of the contact claw (32) abuts against the inner wall of the left end of the photoelectric socket (3). The right end of the ceramic sleeve (34) abuts against the annular step (313). The left end of the LC standard ferrule (36) is inserted into the ceramic sleeve (34). The left end of the spring (37) is sleeved on the outside of the right end of the LC standard ferrule (36). The right end of the spring (37) abuts against the inner wall of the right end of the photoelectric socket (3). The photoelectric pin (8) is fixedly connected to a hollow ceramic ferrule (81) at its right end. The right end of the ceramic ferrule (81) is inserted into the ceramic sleeve (34) and abuts against the left end of the LC standard ferrule (36). The spring clip of the contact claw (32) is held on the outside of the photoelectric pin (8). The photoelectric pin (8) and the photoelectric socket (3) maintain a stable electrical connection. The photoelectric pin (8) includes a hollow electric pin contact post (82), a limiting annular step (83) fixedly sleeved on the outside of the electric pin contact post (82), and a welding post (85) fixedly set on the left end of the electric pin contact post (82). The spring clip of the contact claw (32) is held on the outside of the electric pin contact post (82). The left end of the ceramic ferrule (81) is fixedly snapped into the inside of the right end of the electric pin contact post (82). The welding post (85) is provided with optical fiber lead-out axial holes (87) on both the left and right sides.

2. The integrated coaxial optoelectronic connector according to claim 1, characterized in that, The socket insulating core (4) includes a hollow socket core cover (43) and a hollow socket core seat (48). The left end of the socket core cover (43) is provided with a socket stop spring step hole (44). The socket stop spring (10) is provided in the socket stop spring step hole (44). The inner spring of the socket stop spring (10) faces to the right. The left end of the socket core cover (43) is provided with a socket guide hole (45). The right end of the socket core seat (48) is fixedly connected with a socket guide post (46). The right end of the socket core seat (48) abuts against the left end of the socket core cover (43). The socket guide post (46) is inserted into the socket guide hole (45). The inner diameter of the socket core seat (48) is smaller than the diameter of the socket stop spring (10). The right end of the socket core cover (43) is fixedly provided with a first positioning step (41), and the first positioning step (41) is provided with a pin lead-out hole (42) through the left and right sides. The limiting ring step (83) is coaxially sleeved inside the socket core cover (43). The right end of the limiting ring step (83) abuts against the first positioning step (41), and the right end of the inner closing spring of the socket stop spring (10) abuts against the left end of the limiting ring step (83).

3. The integrated coaxial optoelectronic connector according to claim 2, characterized in that, The welding column (85) has a socket opening fan-shaped groove (86) on its side wall. The socket opening fan-shaped groove (86) extends to the left end of the welding column (85). The left end of the welding column (85) has a socket closing fan-shaped groove (88).

4. The integrated coaxial optoelectronic connector according to claim 2, characterized in that, The connector socket (102) includes a hollow socket tail (6) and a hollow socket housing (7). The right end of the socket tail attachment (6) is provided with an internal thread (61), and the left end of the socket housing (7) is provided with an external thread (78). The socket tail attachment (6) is screwed to the socket housing (7). The socket core cover (43) and the socket core seat (48) are both bonded and fixed to the inner wall of the socket housing (7).

5. The integrated coaxial optoelectronic connector according to claim 4, characterized in that, The inner wall of the socket housing (7) is fixedly provided with a limiting step, and the limiting step is provided with a limiting hole (76). The first positioning step (41) is embedded in the limiting hole (76), and the right end of the socket core cover (43) abuts against the limiting step.

6. The integrated coaxial optoelectronic connector according to claim 1, characterized in that, The photoelectric socket (3) includes a hollow cylindrical photoelectric socket core (30) and a photoelectric socket stop handle (38). The left end of the photoelectric socket stop handle (38) is screwed to the right end of the cylindrical photoelectric socket core (30). The right end of the spring (37) abuts against the left end of the photoelectric socket stop handle (38). An embedded annular groove (35) is provided on the outer wall of the photoelectric socket core (30). Optical fiber lead-out holes (310) are provided on the left and right sides of the photoelectric socket stop handle (38). The plug insulating core (9) includes a hollow first stepped cylinder (92), a hollow second stepped cylinder (94), and a hollow axial stop post (98). An annular baffle is fixedly provided at the left end of the first stepped cylinder (92), with an axial guide hole (91) at its center. The right end of the first stepped cylinder (92) is fixedly connected to the left end of the second stepped cylinder (94). The right end of the second stepped cylinder (94) is provided with a plug stop spring stepped hole (95), and the plug stop spring stepped hole (95) contains a... There is a plug stop spring (100), the inner spring sheet of the plug stop spring (100) faces to the left, the right end of the second stepped cylinder (94) is provided with a plug guide hole (96), the left end of the axial stop post (98) is fixedly connected to a plug guide post (97), the right end of the second stepped cylinder (94) abuts against the left end of the axial stop post (98), the plug guide post (97) is inserted into the plug guide hole (96), and the inner diameter of the axial stop post (98) is smaller than the diameter of the plug stop spring (100); The first stepped cylinder (92) is coaxially sleeved on the outside of the photoelectric socket core (30). The left end of the photoelectric socket core (30) abuts against the annular baffle. The left end of the inner spring of the plug stop spring (100) abuts against the inner side wall of the left side of the annular groove (35).

7. The integrated coaxial optoelectronic connector according to claim 6, characterized in that, The photoelectric socket stop handle (38) has a plug opening fan-shaped groove (39) on its side wall. The plug opening fan-shaped groove (39) extends to the right end of the photoelectric socket stop handle (38). The right end of the photoelectric socket stop handle (38) has a plug closing fan-shaped groove (311).

8. The integrated coaxial optoelectronic connector according to claim 7, characterized in that, The connector plug (101) includes a hollow plug tail (1), a hollow plug housing (2), and a hollow plug locking nut (5). The plug tail attachment (1) has an inner wall thread (11) on the left end, and the plug housing (2) has an outer wall thread (25) on the right end. The right end of the plug housing (2) is screwed to the left end of the plug tail attachment (1). The left end of the plug housing (2) is fitted inside the right end of the plug locking nut (5). The outer wall of the left end of the plug housing (2) is fixedly fitted with a first annular step (22). The outer wall of the middle part of the plug housing (2) is fixedly fitted with a second annular step (23). A movable annular groove (26) is formed between the first annular step (22) and the second annular step (23). The inner wall of the right end of the plug locking nut (5) is fixedly fitted with a movable annular plate (52). The movable annular plate (52) is coaxially fitted inside the movable annular groove (26). The first step cylinder (92), the second step cylinder (94), and the axial stop post (98) are all bonded and fixed to the inner wall of the plug housing (2).

9. The integrated coaxial optoelectronic connector according to claim 8, characterized in that, The plug housing (2) has an axial first annular plate (21) fixedly installed on the inner side wall of the left end, and the left end of the second stepped cylinder (94) abuts against the axial first annular plate (21).

10. The integrated coaxial optoelectronic connector according to claim 1, characterized in that, Both the connector plug (101) and the connector socket (102) are made of metal.

Citation Information

Patent Citations

  • Optoelectrical connector

    CN102237598A

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    CN213959228U