Double-core photoelectric hybrid connector and adapter thereof

Abstract

The utility model discloses a double-core photoelectric hybrid connector and an adapter thereof. The connector comprises a ceramic ferrule used for optical fiber signal transmission. The insertion spring is used for transmitting electric signals; the connector shell is used for arranging and fixing the ceramic insertion core and the insertion spring up and down; the front end of the connector shell is provided with a space for the front end of the ceramic insertion core to be inserted and an insertion port used for being connected with the insertion spring in an inserted mode, a photoelectric hybrid cable is arranged in the tail of the connector shell, an optical fiber of the photoelectric hybrid cable is fixedly connected with the ceramic insertion core, and a conductive copper wire of the photoelectric hybrid cable is electrically connected with the insertion spring. The adapter comprises two identical adapter shells, the front ends of the adapter shells are plugging cavity positions for plugging the double-core photoelectric hybrid connectors, the bottoms of the plugging cavity positions are solid side walls, the solid side walls are provided with plugging through holes for correspondingly plugging the ceramic insertion cores and plugging slotted holes, conductive insertion sheets are inserted into the plugging slotted holes, and the conductive insertion sheets are inserted into the plugging slotted holes. And when the double-core photoelectric hybrid connector is inserted into the insertion cavity, the conductive insertion sheet is connected with the insertion spring in an insertion manner.

Description

Technical Field

[0001] The utility model relates to the technical field of optical communications, in particular to a dual-core optoelectronic hybrid connector and an adapter thereof. Background Art

[0002] With the rapid development of communication technology, network cabling for data transmission and power cabling need to be arranged in some environments, such as the installation scenarios of Wi-Fi access points, 5G small base stations, video surveillance cameras and other equipment. It is difficult for these devices to obtain appropriate power sockets in the surrounding area, so it is necessary to solve the problems of data transmission and equipment power supply at the same time. Traditionally, optical fiber cables and power cables are laid separately, which requires a lot of manpower and material resources. Through research and design in related fields, there are now optoelectronic hybrid cables that combine optical fiber for data transmission and conductive copper wire into the same cable, which greatly reduces the burden of line laying for the above-mentioned projects. However, the optical fiber and conductive copper wire at the head of the cable are scattered. When designing connectors for connecting optical fibers and connectors for connecting conductive copper wires, when there are many optical fiber lines to be connected, on the one hand, a larger junction box is required, and on the other hand, it is easy to connect them incorrectly. Therefore, the present technical solution designs a connector connected to the end of this optoelectronic hybrid cable and an adapter for quickly splicing with another optoelectronic hybrid cable equipped with the connector, so as to achieve fast and accurate connection of the optoelectronic hybrid cable. Utility Model Content

[0003] To achieve the above-mentioned purpose, the present invention proposes a dual-core optoelectronic hybrid connector and an adapter thereof, which solve the inconvenience of connecting the ends of existing optoelectronic hybrid cables.

[0004] The technical solution disclosed in the present utility model is a dual-core optoelectronic hybrid connector, comprising a ceramic ferrule for optical fiber signal transmission; a plug spring for electrical signal transmission; a connector housing that arranges the ceramic ferrule and the plug spring in an upper and lower arrangement and fixes them; the front end of the connector housing is provided with a space for plugging the front end of the ceramic ferrule, and a plug interface for plugging with the plug spring; the rear end of the connector housing is placed in an optoelectronic hybrid cable, the optical fiber of the optoelectronic hybrid cable is connected and fixed to the ceramic ferrule, and the conductive copper wire of the optoelectronic hybrid cable is electrically connected to the plug spring.

[0005] Furthermore, the connector shell includes a front shell, a middle shell and a rear shell, the middle shell is provided with a hollow cylinder for installing the ceramic ferrule, the rear end of the hollow cylinder is a through hole for passing the optical fiber, and a spring mounting hole for installing the plug spring is provided below the through hole; the front shell is provided with a plug-in cavity for plugging into the hollow cylinder, and the front end of the ceramic ferrule passes through the front end of the plug-in cavity; the front end of the rear shell is provided with a cavity that is plugged into the rear end of the middle shell, the front shell is snap-connected with the middle shell, and the middle shell is snap-connected with the rear shell.

[0006] Furthermore, the ceramic ferrules include two groups, the rear end sleeves of the ceramic ferrules are provided with springs, and the hollow cylinders and the plug-in cavities include two groups arranged side by side.

[0007] Furthermore, a first axis connecting end is provided at the rear end position of the two hollow cylinders of the middle shell, the first axis connecting end is provided with a press buckle, the middle bottom of the press buckle is provided with a second axis connecting end, the front bottom of the press buckle is provided with a hook, the rear end of the press buckle is an upward-curved pressing part, and the second axis connecting end is provided with a torsion spring and is connected to the first axis connecting end through a pivot.

[0008] Furthermore, the outer side wall of the hollow cylinder is provided with a first buckle position, and the side wall corresponding to the plug-in cavity is provided with a first buckle hole that is engaged with the first buckle position; the left and right side walls of the middle shell are provided with a second buckle position, and the left and right side walls corresponding to the cavity position of the rear shell are provided with a second buckle hole that is engaged with the second buckle position.

[0009] Furthermore, the rear end of the rear shell is provided with a crimping annular surface, the crimping annular surface is sleeved with a metal ring, an optical cable aramid is passed between the metal ring and the crimping annular surface, and a tail sleeve with an optoelectronic hybrid cable is inserted into the metal ring at the rear end of the rear shell.

[0010] An adapter is adapted to be connected to the above-mentioned dual-core optoelectronic hybrid connector, comprising two identical adapter shells, the front end of the adapter shell being a plug-in cavity for plugging in the dual-core optoelectronic hybrid connector, the bottom of the plug-in cavity being a solid side wall, the solid side wall being provided with a plug-in through hole corresponding to the ceramic ferrule, and a plug-in slot, the plug-in slot being inserted with a conductive plug, the rear ends of the two adapter shells being connected relative to each other, the two ends of the conductive plug respectively extending out of the plug-in cavity of the two adapter shells, and when the dual-core optoelectronic hybrid connector is plugged into the plug-in cavity, the conductive plug is plug-in connected to the plug spring.

[0011] Furthermore, the adapter shell is integrally injection molded, and the rear end of the adapter shell is provided with ultrasonic welding ribs and grooves. When the rear ends of the two adapter shells are connected to each other, the ultrasonic welding ribs and grooves are connected to each other, and the connection of the two adapter shells is achieved by ultrasonic welding.

[0012] Furthermore, a slotted pin cylindrical sleeve is provided in the plug-in through hole, a positioning stop protrusion protruding to both sides is provided in the middle of the conductive plug, and a connecting port for connecting to the hook of the press buckle is provided on the upper side wall of the plug-in cavity of the adapter housing.

[0013] Furthermore, a connection through-hole is also provided at the middle position of the solid side wall at the rear end of the adapter housing. When the rear ends of two adapter housings are connected relatively, the connection through-holes are opposite to each other, and a metal plug is provided in the connection through-hole to strengthen the connection between the two adapter housings.

[0014] The beneficial effects of the dual-core optoelectronic hybrid connector and the matching adapter disclosed in this technical solution are as follows: This solution realizes the integration of the optical fiber connector and the conductive connector for connecting the optoelectronic hybrid cable, and designs a matching adapter. Through the dual-core optoelectronic hybrid connector and the adapter, multiple segments of optoelectronic hybrid cables provided with dual-core optoelectronic hybrid connectors can be quickly connected through the adapter to realize the transmission of optical signals and electrical signals, and the occupied space area is small.

[0015] The dual-core optoelectronic hybrid connector and the adapter are elastically hooked through the pressing buckle and the connection port of the adapter. When plugging in, under the action of the torsion spring of the pressing buckle, the hook part of the pressing buckle will automatically enter the connection port of the adapter, realizing that the dual-core optoelectronic hybrid connector is plugged into the adapter and automatically elastically hooked after being plugged in place, which is very convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic exploded view of the structure of the dual-core optoelectronic hybrid connector disclosed in the present invention.

[0017] Figure 2 It is a three-dimensional view of the overall assembled structure of the dual-core optoelectronic hybrid connector disclosed in the present invention.

[0018] Figure 3 It is a schematic exploded view of the structure of the adapter disclosed in the present invention.

[0019] Figure 4 It is a schematic diagram of the ultrasonic welding rib positions and groove positions of the adapter housing disclosed in the present invention.

[0020] Figure 5 It is a three-dimensional view of the overall structure of the adapter disclosed in the present invention.

[0021] Figure 6 It is a schematic diagram of the connection structure between the dual-core optoelectronic hybrid connector and the adapter disclosed in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall also fall within the scope of protection of the present disclosure.

[0023] Please refer to Figures 1 to 6This is a specific implementation of the dual-core optoelectronic hybrid connector and its matching adapter disclosed in this technical solution. Among them, as Figure 1 , Figure 2 shown, a dual-core optoelectronic hybrid connector provided by this technical solution includes a ceramic ferrule 11 for optical fiber signal transmission; a plug spring 15 for electrical signal transmission; a connector housing that vertically arranges and fixes the ceramic ferrule 11 and the plug spring 15; the front end of the connector housing is provided with a space for the front end of the ceramic ferrule 11 to be inserted, and a socket for inserting the plug spring 15. The tail of the connector housing is inserted into an optoelectronic hybrid cable. The optical fiber of the optoelectronic hybrid cable is connected and fixed to the ceramic ferrule 11, and the conductive copper wire of the optoelectronic hybrid cable is electrically connected to the plug spring 15.

[0024] [[ID=~]]The connector housing includes a front housing 14, a middle housing 13, and a rear housing 16. The middle housing 13 is provided with a hollow cylinder 131 for installing the ceramic ferrule 11. The rear end of the hollow cylinder 131 is a through hole for the optical fiber to pass through. Below the through hole, there is a plug spring mounting hole position for installing the plug spring 15; the front housing 14 is provided with a plugging cavity 141 for plugging into the hollow cylinder 131, and the front end of the ceramic ferrule 11 passes through the front end of the plugging cavity 141; the front end of the rear housing 16 is provided with a cavity for plugging into the rear end of the middle housing 13. The front housing 14 is snap-fitted with the middle housing 13, and the middle housing 13 is snap-fitted with the rear housing 16.

[0025] Preferably, there are two groups of the ceramic ferrules 11. Springs 12 are sleeved on the rear ends of the ceramic ferrules 11. Both the hollow cylinder 131 and the plugging cavity 141 include two arranged side by side.

[0026] At the rear end positions of the two hollow cylinders 131 of the middle housing 13, there are first shaft connection ends 132. The first shaft connection ends 132 are provided with a pressing buckle 19. The middle bottom of the pressing buckle 19 is provided with a second shaft connection end 191. The front bottom of the pressing buckle 19 is provided with a hook portion 192. The rear end of the pressing buckle 19 is a pressing portion 193 that tilts upward. The second shaft connection end 191 is provided with a torsion spring 20 and is connected to the first shaft connection end 132 through a pivot 201. The design of the pressing buckle 19 is to achieve a snap-fitting and fixed connection with the adapter 2 ( Figure 6 shown).

[0027] Refer to Figure 1 , Figure 2As a structural scheme of the snap-fit connection of the shell components that make up the connector shell, the outer wall of the hollow cylinder 131 is provided with a first buckle position 133, and the side wall corresponding to the plug-in cavity 141 is provided with a first buckle hole 142 that is snap-fitted with the first buckle position 133. The left and right side walls of the middle shell 13 are provided with second buckle positions 134, and the left and right side walls corresponding to the cavity of the rear shell 16 are provided with second buckle holes 161 that are snap-fitted with the second buckle position 134.

[0028] Furthermore, the rear end of the rear housing 16 is provided with a crimping annular surface 162, which is covered with a metal ring 17. An optical fiber aramid is threaded between the metal ring 17 and the crimping annular surface 162. A tail sleeve 18, which carries an optoelectronic hybrid cable, is inserted into the metal ring 17 at the rear end of the rear housing 16. The design of the crimping annular surface 162, the optical fiber aramid, and the metal ring 17 enhances the strength of the connector tail end and better protects the cable from bending.

[0029] Please refer to Figures 3 to 5 The present invention discloses an adapter 2 for connecting to a dual-core optoelectronic hybrid connector 1. The adapter 2 comprises two identical adapter housings 21. The front end of the adapter housing 21 is a plug-in cavity 211 for plugging into the dual-core optoelectronic hybrid connector 1. The bottom of the plug-in cavity 211 is a solid side wall. The solid side wall is provided with a plug-in through-hole 212 corresponding to the ceramic ferrule 11 and a plug-in slot 213. The plug-in slot 213 is penetrated by a conductive plug 22. The rear ends of the two adapter housings 21 are connected to each other. The two ends of the conductive plug 22 are respectively passed through the plug-in cavity 211 of the two adapter housings 21. When the dual-core optoelectronic hybrid connector 1 is plugged into the plug-in cavity 211, the conductive plug 22 is plug-in connected to the plug spring 15.

[0030] Furthermore, the adapter housing 21 is integrally injection molded, and the rear end of the adapter housing 21 is provided with ultrasonic welding ribs 26 and grooves 27. When the rear ends of the two adapter housings 21 are connected, the ultrasonic welding ribs 26 and grooves 27 are connected to each other, and the connection of the two adapter housings 21 is achieved by ultrasonic welding. Figure 4 Ultrasonic welding ribs 26 and grooves 27 are designed at diagonal positions on the rear end of the adapter housing 21. In this way, when the rear ends of the two adapter housings 21 are connected, the ultrasonic welding ribs 26 on the rear end of one adapter 21 can enter the grooves 27 on the rear end of the other adapter 21.

[0031] Furthermore, a slotted pin cylindrical sleeve 23 is provided in the plug-in through hole 212, a positioning stop protrusion 221 protruding to both sides is provided in the middle of the conductive plug 22, and a connecting port 25 for connecting to the hook 192 of the press buckle 19 is provided on the upper side wall of the plug-in cavity 211 of the adapter housing 21.

[0032] Further, a connection through-hole 214 is also provided at the middle position of the solid side wall at the rear end of the adapter housing 21. When the rear ends of two adapter housings 21 are connected relatively, the connection through-holes 214 are opposite to each other, and a metal plug 24 is provided in the connection through-hole 214 for strengthening the connection between the two adapter housings 21.

[0033] Through this technical solution, the optical fiber connector and the conductive connector for the connection of the optical and electrical hybrid cable are integrated into one body, and a matching adapter is designed. Through the dual-core optical and electrical hybrid connector 1 and the adapter 2, multiple optical and electrical hybrid cables provided with the dual-core optical and electrical hybrid connector 1 can be quickly connected through the adapter 2 to realize the transmission of optical signals and electrical signals, and the occupied space area is small.

[0034] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A dual-core optoelectronic hybrid connector, characterized in that, include: A ceramic ferrule (11) for optical fiber signal transmission; A spring (15) for transmitting electrical signals; A connector housing in which the ceramic ferrule (11) and the insert spring (15) are arranged and fixed vertically; The front end of the connector housing is provided with a space for inserting the front end of the ceramic ferrule (11) and an insertion interface for inserting with the insertion spring (15); the tail of the connector housing is placed in an optoelectronic hybrid cable; the optical fiber of the optoelectronic hybrid cable is connected and fixed to the ceramic ferrule (11); and the conductive copper wire of the optoelectronic hybrid cable is electrically connected to the insertion spring (15).

2. The dual-core optoelectronic hybrid connector according to claim 1, wherein, The connector housing comprises a front housing (14), a middle housing (13) and a rear housing (16); the middle housing (13) is provided with a hollow cylinder (131) for mounting the ceramic ferrule (11); the rear end of the hollow cylinder (131) is a through hole for passing through the optical fiber; a spring mounting hole for mounting the spring (15) is provided below the through hole; the front housing (14) is provided with a plug-in cavity (141) for plugging into the hollow cylinder (131); the front end of the ceramic ferrule (11) passes through the front end of the plug-in cavity (141); the front end of the rear housing (16) is provided with a cavity for plugging into the rear end of the middle housing (13); the front housing (14) is snap-fitted with the middle housing (13), and the middle housing (13) is snap-fitted with the rear housing (16).

3. The dual-core optoelectronic hybrid connector according to claim 2, characterized in that, The ceramic ferrules (11) include two groups. The rear end of the ceramic ferrules (11) is provided with a spring (12). The hollow cylinders (131) and the plug-in cavities (141) each include two arranged side by side.

4. The dual-core optoelectronic hybrid connector according to claim 3, characterized in that, A first shaft connection end (132) is provided at the rear end of the two hollow cylinders (131) of the middle shell (13), the first shaft connection end (132) is provided with a pressing buckle (19), the middle bottom of the pressing buckle (19) is provided with a second shaft connection end (191), the front bottom of the pressing buckle (19) is provided with a hook portion (192), the rear end of the pressing buckle (19) is an upwardly tilted pressing portion (193), the second shaft connection end (191) is provided with a torsion spring (20) and is connected to the first shaft connection end (132) via a pivot (201).

5. The dual-core optoelectronic hybrid connector according to claim 3, wherein, The outer side wall of the hollow cylinder (131) is provided with a first buckle position (133), and the side wall corresponding to the plug-in cavity (141) is provided with a first buckle hole (142) that is engaged with the first buckle position (133); the left and right side walls of the middle shell (13) are provided with a second buckle position (134), and the left and right side walls corresponding to the cavity position of the rear shell (16) are provided with a second buckle hole (161) that is engaged with the second buckle position (134).

6. The dual-core optoelectronic hybrid connector according to claim 2, wherein The rear end of the rear shell (16) is provided with a crimping annular surface (162), the crimping annular surface (162) is sleeved with a metal ring (17), an optical cable aramid is passed through the metal ring (17) and the crimping annular surface (162), and a tail sleeve (18) with an optoelectronic hybrid cable is inserted into the metal ring (17) at the rear end of the rear shell (16).

7. An adapter is adapted to be connected to the dual-core optical and electrical hybrid connector according to any one of claims 1 to 6, and is characterized in that It includes two identical adapter housings (21). The front end of the adapter housing (21) is a plugging cavity (211) for plugging the two-core optical and electrical hybrid connector (1). The bottom of the plugging cavity (211) is a solid side wall. The solid side wall is provided with a plugging through hole (212) corresponding to plug the ceramic ferrule (11) and a plugging slot hole (213). A conductive insert piece (22) is inserted through the plugging slot hole (213). The rear ends of the two adapter housings (21) are butted against each other. The two ends of the conductive insert piece (22) respectively extend out into the plugging cavities (211) of the two adapter housings (21). When the two-core optical and electrical hybrid connector (1) is plugged into the plugging cavity (211), the conductive insert piece (22) is in plug-in connection with the plug spring (15).

8. The adapter according to claim 7, characterized in that The adapter housing (21) is integrally injection molded. The rear end of the adapter housing (21) is provided with an ultrasonic welding rib position (26) and a groove position (27). When the rear ends of the two adapter housings (21) are butted against each other, the ultrasonic welding rib positions (26) and the groove positions (27) of each other are butted against each other, and the connection of the two adapter housings (21) is realized through ultrasonic welding.

9. The adapter according to claim 7, characterized in that, A grooved pin cylindrical sleeve (23) is arranged in the plugging through hole (212). A positioning stop protrusion (221) protruding towards both sides is arranged in the middle of the conductive insert piece (22). A connection port (25) for connecting with the hook part (192) of the pressing buckle (19) is arranged on the upper side wall of the plugging cavity (211) of the adapter housing (21).

10. The adapter according to claim 7, characterized in that, A connection through hole (214) is further arranged at the middle position of the solid side wall at the rear end of the adapter housing (21). When the rear ends of the two adapter housings (21) are connected relatively, the connection through holes (214) are opposite to each other, and a metal pin (24) is arranged in the connection through hole (214) to strengthen the connection of the two adapter housings (21).

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