CN113419311B - Plug connector, plug fixing part and connector assembly - Google Patents

Plug connector, plug fixing part and connector assembly Download PDF

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Publication number
CN113419311B
CN113419311B CN202110687846.7A CN202110687846A CN113419311B CN 113419311 B CN113419311 B CN 113419311B CN 202110687846 A CN202110687846 A CN 202110687846A CN 113419311 B CN113419311 B CN 113419311B
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China
Prior art keywords
unit
plug connector
floating
plug
shell
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Active
Application number
CN202110687846.7A
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Chinese (zh)
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CN113419311A (en
Inventor
刘乃常
韩云钊
陈明
赵晓鸣
王旭涛
徐俊
李卫可
武学顺
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China Aviation Optical Electrical Technology Co Ltd
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China Aviation Optical Electrical Technology Co Ltd
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Priority to CN202110687846.7A priority Critical patent/CN113419311B/en
Publication of CN113419311A publication Critical patent/CN113419311A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3869Mounting ferrules to connector body, i.e. plugs
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3826Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3873Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3885Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/389Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type

Abstract

A plug connector comprises a shell unit (21), wherein a fixing unit (24), a floating unit (25) and an internal insertion end part are arranged in the shell unit (21), and the internal insertion end part comprises a contact unit (23); the fixing unit (24) fixes the contact unit (23) and is matched with the floating unit (25) to realize axial floating of the shell unit (21); according to the connector assembly, the plug connector can be directly connected with equipment interfaces (multi-core optical, electrical, signal and the like), meanwhile, the plug connector can float, and can be adapted to socket equipment of different models in a certain range, and the plug connector is shorter in length, so that the installation space is saved; the plug is provided with one or more wire outlets, so that the situations that the contact unit causes cable (optical cable or electric cable) transition bending to cause optical fiber breakage or poor contact of the contact unit and the like when being matched with different sockets can be avoided, and the normal transmission of signals is ensured.

Description

Plug connector, plug fixing part and connector assembly
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a plug connector, a plug fixing part and a connector assembly.
Background
The optical fiber communication technology is developing towards the direction of high transmission rate and high bandwidth, the optical fiber connection technology develops along with the development of the optical fiber communication technology, and the optical fiber connection technology is developed into a series of optical fiber connector products with various varieties, complete types and various structures at present, and becomes one of the most widely applied basic optical passive devices in the optical fiber application field. Due to the development of the technology, the optical fiber connector is miniaturized, has multiple cores, high reliability and strong compatibility, and becomes the development trend of the optical fiber connector.
The existing optical fiber connectors are generally divided into two types.
Referring to fig. 1, the first type is a form of an add-drop band adapter, in which an optical fiber plug-in connector and an add-drop terminal are inserted into each other, and then a jumper is used to connect an optical fiber device interface and the adapter; this connected mode needs to increase adapter and wire jumper and realizes optic fibre insertion end and fiber equipment interface connection, and the interface is more to cause the insertion to decrease great, and the operation is complicated, and needs to reserve the space of arranging adapter and wire jumper in communication equipment.
Referring to fig. 2 and 3, in the second method, the optical fiber inner core is inserted into the optical fiber device interface, and then the housing member is pushed up to be butted with the opposite plug terminals; this connected mode, though optic fibre insertion end can be directly with the butt joint of optic fibre equipment interface, but the assembling process is complicated, need penetrate the optical cable inner core earlier and insert with transceiver module behind the insertion end and close, then screw up behind the butt joint insertion end and insert and close end afterbody nut, part length is longer, and installation space is big, and installation steps is complicated, is unfavorable for the miniaturization of equipment.
Disclosure of Invention
The invention aims to provide a plug connector, a plug fixing part and a connector assembly.
To achieve the object, the plug connector provided by the present invention comprises a housing unit 21, wherein a fixing unit 24, a floating unit 25 and an internal insertion end part are arranged in the housing unit 21, and the internal insertion end part comprises a contact unit 23; the fixing unit 24 fixes the contact unit 23 while achieving axial floating of the housing unit 21 in cooperation with the floating unit 25.
Preferably, a cavity is formed in the fixed unit 24, one end of the floating unit 25 is slidably installed in the cavity in the insertion direction, and the other end is installed on the housing unit 21.
Preferably, a passage 2503 for a cable to pass through is formed in the floating unit 25, and an end of the cable 2502 passes through the passage 2503 and the fixing unit 24 to be connected with the pin 2301 formed in the contact unit 23.
Preferably, the floating unit 25 and the fixed unit 24 are connected in a floating manner through the elastic element 30, and the floating unit 25 can move the housing unit 21.
Preferably, the fixed unit 24 is provided with a first mounting cavity 2401, the floating unit 25 is provided with a second mounting cavity 2501, and one end of the elastic element 30 is mounted in the first mounting cavity 2401 and the other end is mounted in the second mounting cavity 2501.
Preferably, at least two contact units 203 share one floating unit 25.
Preferably, at least one contact unit 203 is mounted on a different floating unit 25 from the other contact units 203.
Preferably, the contact unit 23 is provided with a guide structure 2302 having a structure for facilitating the docking.
Preferably, the inner plug-in end part is prevented from rotating with the housing unit 21 by the plug-in rotation preventing structure.
Preferably, the mating of the inner engagement end member with the receptacle precedes the mating of the housing unit 21 with the plug-fixing section 1.
Preferably, when the plug is inserted, the housing unit 21 moves towards the plug fixing portion 1 through the floating unit 25, and after the contact unit 203 is inserted into the socket, the housing unit 21 is locked with the plug fixing portion 1 through the locking unit 22 arranged on the housing unit 21.
Preferably, the plug connector is provided with at least one outlet; when the plug connector is provided with a plurality of wire outlets, the included angle between every two adjacent wire outlets is 0-180 degrees.
Preferably, a tension unit 26, a sealing unit 27 and a bending unit 28 are arranged in the housing unit 21, the tension unit 26 is installed at the end of the floating unit 25, and the tension unit 26 is connected with the bending unit 28 through the sealing unit 27; a first convex edge 2504 is arranged on the outer wall of the floating unit 25, an extending part is arranged at the rear end of the first convex edge 2504, a first limiting table 2508 is arranged on the extending part, and a second limiting table 2101 used for limiting the movement of the first convex edge 2504 in the rear direction is arranged on the inner wall of the shell unit 21; the inner wall of the housing unit 21 is further provided with a third stop 2104, the third stop 2104 cooperates with the first stop 2508 to prevent the floating unit 25 from moving forward relative to the housing unit 21.
Preferably, the inner wall of the housing unit 21 is provided with a second step 2103 for rear-limiting the movement of the tension unit 26.
Preferably, the extending portion includes a first extending portion 2505 disposed at the rear end of the first protruding edge 2504 and a resilient piece 2507 disposed at the end of the first extending portion 2505, the first limiting platform 2508 is disposed on the resilient piece 2507, a first mounting groove 2601 for performing rear limiting on the first extending portion 2505 is disposed on the tensile unit 26, and a second mounting groove 2602 for providing a deformation space for deformation of the resilient piece 2507 is further disposed on the tensile unit 26.
Preferably, the extension is provided with a mounting hole 2506, and the tension unit 26 is provided with a protrusion 2603 cooperating with the mounting hole 2506, so that when the protrusion 2603 is caught in the mounting hole 2506, the floating unit 25 is prevented from moving relative to the tension unit 26.
Preferably, the outer wall of the sealing unit 27 is provided with a third step 2105, the inner wall of the housing unit 21 is provided with a fourth step 2701, which is used in cooperation with the third step 2105 to perform front limit on the sealing unit 27, the outer wall of the sealing unit 27 is further provided with a second convex edge 2702, and the inner wall of the housing unit 21 is provided with a limit groove 2107, which is used in cooperation with the second convex edge 2702 to perform rear limit on the sealing unit 27.
Preferably, the bending-resistant unit 28 is provided with a third convex edge 2801, the inner wall of the rear end of the housing unit 21 is provided with a fourth limit stop 2106, and the fourth limit stop 2106 is used in cooperation with the third convex edge 2801 to prevent the bending-resistant unit 28 from falling out of the housing unit 21.
The invention also provides a plug fixing part which comprises the plug fixing part 1 matched with the plug and plug connector 2.
The invention also provides a connector assembly, which comprises a plug connector 2 and a plug fixing part 1 matched with the plug connector, wherein the plug connector 2 is the plug connector.
The invention has the following advantages:
1. the connector assembly provided by the invention can realize direct connection of the plug connector with equipment interfaces (multi-core optical, electrical, signal and the like), can realize floating of the connected plug, can be adapted to socket equipment of different types in a certain range, has shorter plug length and saves installation space.
2. The plug connector is provided with one or more wire outlets, so that the situations that the contact unit is subjected to transition bending of cables (optical cables or electric cables) when being matched with different sockets, optical fibers are broken or the contact unit is poor in contact and the like can be avoided, and normal transmission of signals is ensured.
The foregoing is a summary of the present invention, and for the purpose of making clear the technical means of the present invention, the present invention can be implemented according to the content of the description, and for the purpose of making the above and other objects, features, and advantages of the present invention more comprehensible, the following preferred embodiments are described in detail:
drawings
Fig. 1 is a schematic diagram of an optical circuit connection in the form of a prior art socket belt adapter.
Fig. 2 is a schematic diagram of optical connection in a socket direct-plug type in the prior art.
Fig. 3 is a schematic diagram of a socket and a plug in the prior art.
Fig. 4 is a schematic view of a connector assembly according to one embodiment.
Fig. 5 is a cross-sectional view of a plug connector of the first embodiment.
Fig. 6 is an enlarged schematic view at a in fig. 5.
Fig. 7 is a schematic view illustrating a case where the contact units are all optical units according to the first embodiment.
Fig. 8 is a schematic view of the installation of the contact unit and the floating unit in the first embodiment.
Fig. 9 is a schematic view of the second embodiment in which the contact units are an optical unit and an electrical unit, respectively.
Fig. 10 is a schematic view illustrating a plug connector according to a third embodiment of the present invention, wherein the plug connector is provided with two outlets.
Fig. 11 is a schematic view of the plug connector and the receptacle of the present invention in a mated state.
[ reference numerals ]
1-plug fixing part, 2-plug connector.
21-housing unit, 2101-second limit table, 2102-first limit table, 2103-second limit table, 2104-third limit table, 2105-third limit table, 2106-fourth limit table, 2107-limit groove, 22-locking unit, 23-contact unit, 2301-pin, 24-fixing unit, 2401-first installation cavity, 25-floating unit, 2501-second installation cavity, 2502-conductor, 2503-channel, 2504-first convex edge, 2505-first extension, 2506-installation hole, 2507-elastic sheet, 2508-first limit table, 26-tensile unit, 2601-third limit table, 2601-first installation groove, 2602-second installation groove, 27-sealing unit, 2701-fourth step, 2702-second convex edge, 28-bending resistance unit, 2801-third convex edge, 29-unlocking unit, 30-elastic unit, 4-socket, 5-SFP module case, 6-SFP module case.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description is given to a plug connector, a plug fixing portion and a connector assembly according to the present invention, with reference to the accompanying drawings and preferred embodiments, and the detailed description thereof is given below.
It is defined that the end of the plug connector 2 provided with the contact unit 23 is the front end of the plug connector 2, and the end provided with the outlet terminal is the rear end of the plug connector 2.
Example one
Referring to fig. 4, 5, 6, 7, 8, and 11, a connector assembly of the present embodiment includes a plug connector 2 and a plug fixing portion 1 adapted to the plug connector 2, where the plug connector 2 includes a housing unit 21 and an unlocking unit 29 slidably mounted on the housing unit 21 along an inserting direction, and two sides of the housing unit 21 are provided with locking units 22. When the plug fixing part 1 and the plug connector 2 are plugged in a butting manner, the plug fixing part 1 and the plug connector 2 are locked through the locking unit 29, when the plug fixing part 1 and the plug connector 2 are unlocked, the unlocking unit 29 is slid to the tail end of the plug connector 2, the locking unit 22 is unlocked through the unlocking unit 29, the plug fixing part 1 and the plug connector 2 are separated, and the locking unit 22 is a push-pull, side buckle or other locking structure; the plug fixing part 1 and the plug connector 2 are locked during opposite insertion through structures such as push-pull and side buckle.
An inner insertion end part is arranged in the housing unit 21, the inner insertion end part comprises at least one contact unit 23, and in the embodiment, the number of the contact units 23 is at least 2.
The inner inserting end part realizes rotation prevention with the shell unit 21 through the inserting core rotation prevention structure; the anti-rotation structure of the insertion core can be anti-rotation in shape or anti-rotation in key fit, that is, when in use, the cross section of the inner insertion end part can be set to be square, polygonal, irregular or other shapes, so that the anti-rotation of the inner insertion end and the plug connector 2 is realized when the plug connector 2 and the plug fixing part 1 are plugged, and certainly, the anti-rotation of the inner insertion end and the plug connector 2 can also be realized in key fit or other fit modes;
the shell units 21 and the plug fixing part 1 are matched with each other in an anti-rotation mode through a shell anti-rotation structure, and the shell anti-rotation structure can be anti-rotation in shape and anti-rotation in key matching mode; that is, in use, the sectional form of the housing unit 21 may be set to be square, polygonal, irregular or other shapes, so that the rotation prevention of the housing units 21 and the plug fixing portion 1 is realized at the plug connector 2 and the plug fixing portion 1, and of course, the rotation prevention of the housing units 21 and the plug fixing portion 1 may also be realized by key fitting or the like; of course, the rotation prevention between the housing units 21 and the plug holder 1 can also be achieved by the locking unit 22.
The shell unit 21 is also internally provided with a fixed unit 24, a floating unit 25, a tensile unit 26, a sealing unit 27 and a bending-resistant unit 28, the contact unit 23 is installed at the front end of the fixed unit 24, the floating unit 25 is installed at the rear end of the fixed unit 24, the tail part of the floating unit 25 is connected with the sealing unit 27 through the tensile unit 26, and the tail part of the sealing unit 27 is connected with a cable (optical cable or electric cable) through the bending-resistant unit 28; a first convex edge 2504 extending outwards is arranged on the side wall of the floating unit 25; the fixing unit 24 fixes the contact unit 23 while achieving axial floating of the housing unit 21 in cooperation with the floating unit 25. A sealing element is further arranged between the plug connector 2 and the plug fixing part 1, and the plug fixing part 1 realizes sealing protection on a product through the sealing element and the sealing unit 27 when being plugged with the plug connector 2.
Referring to fig. 5 to 7, the floating unit 25 is further provided with a first extending portion 2505 at the rear end thereof, the first extending portion 2505 is disposed at a side of the first protruding edge 2504 away from the contact unit 23, the first extending portion 2505 is provided with a mounting hole 2506, the rear end of the first extending portion 2505 continues to extend towards the rear end to form a resilient sheet 2507, and the resilient sheet 2507 is provided with a first limiting platform 2508 protruding upwards.
The front end of the tensile unit 26 is provided with a first mounting groove 2601 for accommodating the first extension 2505, a protruding block 2603 is arranged in the first mounting groove 2601, the rear end of the tensile unit 26 is provided with a second mounting groove 2602, when the tensile unit 26 is mounted at the rear end of the floating unit 25, the rear end of the first extension 2505 abuts against the inner wall of the mounting groove 2601, when the elastic piece 2507 deforms under pressure, the second mounting groove 2602 can provide a space for deformation of the elastic piece 2507, meanwhile, the protruding block 2603 is clamped in the mounting hole 2506, and the protruding block 2603 can prevent the floating unit 25 from moving relative to the tensile unit 26, so that the tensile unit 26 and the floating unit 25 are locked.
The diameter of the section at the rear end of the housing unit 21 is gradually reduced, a second limiting table 2101 protruding inwards is arranged on the inner wall at the reducing position of the housing unit 21, a first step 2102 is formed between the second limiting table 2101 and the inner wall of the housing unit 21, the section at the rear end of the housing unit 21 is continuously reduced and a second step 2103 is formed on the inner wall, the second step 2103 is arranged on one side far away from the second limiting table 2101 and far away from the contact unit 23, and a third limiting table 2104 matched with the first limiting table 2508 is further arranged on the inner wall of the housing unit 21.
When assembled, the rear end of the first ledge 2504 abuts against the first step 2102, and the second stop 2101 can block the floating unit 25 from moving backwards relative to the housing unit 21; the rear end of the tensile unit 26 abuts against the second step 2103, and the second step 2103 can block the tensile unit 26 from moving backwards relative to the housing unit 21; while the first stop 2508 catches on the third stop 2104, thereby preventing the floating unit 25 from moving forward relative to the housing unit 21.
Of course, in other embodiments of the present invention, the first flange 2504 may be fixed in the housing unit 21 by screws, snaps, etc.
The outer wall of the sealing unit 27 is provided with a fourth step 2701, the rear end of the sealing unit 27 extends outward to form a second convex edge 2702, the outer wall of the front end of the bending-resistant unit 28 extends outward to form a third convex edge 2801,
the inner wall of the rear end of the housing unit 21 is further provided with a third step 2105 matched with the fourth step 2701, and the third step 2105 is matched with the fourth step 2701 to prevent the sealing unit 27 from moving forwards relative to the housing unit 21; the inner wall of the housing unit 21 between the third step 2105 and the fourth limit stop 2106 is further provided with a limit slot 2107, the limit slot 2107 cooperates with the second flange 2702 to prevent the sealing unit 27 from moving backwards relative to the housing unit 21,
the inner wall of the rear end of the housing unit 21 extends toward the inside of the housing unit 21 and forms a fourth limit table 2106,
the front end of the fourth limit table 2106 abuts against the rear end of the third flange 2801 to prevent the bending-resistant unit 28 from coming out of the housing unit 21.
An elastic element 30 is arranged between the floating unit 25 and the fixing unit 24, a cavity is arranged in the fixing unit 24, the front end of the floating unit 25 is slidably arranged in the cavity along the insertion direction, a channel 2503 for a cable 2502 (optical cable or electric cable) to pass through is arranged in the floating unit 25, the front end of the cable 2502 passes through the fixing unit 24 to be connected with a pin 2301 arranged in the contact unit 23, a through hole for the cable 2502 to pass through is arranged in the fixing unit 24, a first mounting cavity 2401 is arranged at the rear end of the fixing unit 24, a second mounting cavity 2501 is arranged at the front end of the floating unit 25, one end of the elastic element 30 is arranged in the first mounting cavity 2401, the other end of the elastic element 30 is arranged in the second mounting cavity 2501, initial pressure is generated on the elastic element 30 when the floating unit 25 and the fixing unit 24 are assembled, and the elastic element 30 is in a compression state, so that the abutting force of the contact unit 23 and the SFP module 5 in the socket 4 is ensured. Referring to fig. 10, when the plug connector of the present invention is installed and used, the receptacle 4 is installed in the chassis 6, the plug fixing portion 1 is installed outside the chassis 6, the housing unit 21 drives the floating unit 25 to move in the direction of the SFP module 5 of the receptacle 4, when the contact unit 23 and the SFP module 5 are installed in place, the housing unit 21 is continuously moved, the housing unit 21 drives the floating unit 25 to move forward, and the elastic element 30 is compressed until the housing unit 21 and the plug fixing portion 1 are installed in place, so that the plug connector of the present invention can be adapted to SFP modules of different installation positions and different types.
To facilitate the installation of the contact unit 23, a guide structure 2302 may be added at the front end of the contact unit 23, and in this embodiment, the guide structure 2302 is a guide chamfer provided at the front end of the contact unit.
Of course, in the present invention, at least one contact unit 203 is mounted on the floating unit 25 to realize the axial floating connection, and the other contact units 203 adopt the self-locking structure, that is, the other contact units 203 are mounted on the housing unit 21 through the fixing unit 204; of course, in other embodiments of the present invention, at least two contact units 203 of the plurality of contact units 203 may be mounted on the same floating unit 25; it is also possible to have at least one contact unit 203 mounted on a different floating unit 25 than the other contact units 203.
In this embodiment, the contact units 203 are all optical units, the optical contact units may be optical interfaces such as LC, DLC, etc., and at least one contact unit 203 may be adapted to a single-port or double-port SFP interface. Of course, in other embodiments of the present invention, the contact unit 203 may be a light unit, a power unit, an electrical signal unit, a radio frequency unit.
When the plug is inserted, the housing unit 21 moves towards the plug fixing part 1 through the floating unit 25, and after the contact unit 203 is inserted into the socket, the housing unit 21 is locked with the plug fixing part 1 through the locking unit 22 arranged on the housing unit 21. That is, the internal plug-in terminal part is butted with the socket before the shell unit 21 is butted with the plug fixing part 1, so that the contact unit 23 is butted with the SFP module in the socket in place when the plug fixing part 1 and the plug connector 2 are locked; when the plug fixing part 1 and the plug connector 2 are unlocked, the unlocking is realized by unlocking the locking unit 22 by the unlocking unit 29, and simultaneously the contact units are synchronously disengaged.
In this embodiment, the tail end of the plug connector is provided with one or more outlet ports, but in other embodiments of the present invention, a plurality of outlet ports may be provided, an angle formed by the plurality of outlet ports may be set according to requirements, and an angle formed by every two adjacent outlet ports is between 0 ° and 180 °.
Example two
Referring to fig. 9, the present embodiment is different from the first embodiment only in that, in the present embodiment, the contact unit 203 is an optical unit and an electrical unit.
EXAMPLE III
Referring to fig. 10, the difference between the present embodiment and the second embodiment is only that in the present embodiment, two outlet lines are disposed on the plug connector 2, and an angle formed between the two outlet lines is 180 °.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (16)

1. A plug connector, characterized by: the device comprises a shell unit (21), wherein a fixing unit (24), a floating unit (25) and an internal insertion end part are arranged in the shell unit (21), and the internal insertion end part comprises a contact unit (23); the fixing unit (24) fixes the contact unit (23) and simultaneously cooperates with the floating unit (25) to realize axial floating of the shell unit (21);
a tensile unit (26), a sealing unit (27) and a bending-resistant unit (28) are further arranged in the shell unit (21), the tensile unit (26) is installed at the end part of the floating unit (25), and the tensile unit (26) is connected with the bending-resistant unit (28) through the sealing unit (27); a first convex edge (2504) is arranged on the outer wall of the floating unit (25), a first extending part (2505) is arranged at the rear end of the first convex edge (2504), an elastic sheet (2507) is arranged at the end part of the first extending part, and a first limiting table (2508) is arranged on the elastic sheet; a second limiting table (2101) used for performing rear limiting on movement of the first convex edge (2504) is arranged on the inner wall of the shell unit (21), a third limiting table (2104) is further arranged on the inner wall of the shell unit (21), and the third limiting table (2104) is matched with the first limiting table (2508) to prevent the floating unit (25) from moving forwards relative to the shell unit (21); a second step (2103) used for performing rear limiting on the movement of the tensile unit (26) is arranged on the inner wall of the shell unit (21), a first mounting groove (2601) used for performing rear limiting on the first extension part and a second mounting groove (2602) used for providing a deformation space for the elastic sheet are arranged on the tensile unit (26); the first extension portion is provided with a mounting hole (2506), the tensile unit is provided with a lug (2603), and when the lug is clamped in the mounting hole, the floating unit can be prevented from moving relative to the tensile unit.
2. A plug connector as recited in claim 1, wherein: a cavity is arranged in the fixed unit (24), one end of the floating unit (25) is slidably arranged in the cavity along the inserting direction, and the other end of the floating unit is arranged on the shell unit (21).
3. A plug connector as recited in claim 1, wherein: a channel (2503) for a cable to pass through is arranged in the floating unit (25), and the end part of the cable (2502) passes through the channel (2503) and the fixing unit (24) and is connected with a contact pin (2301) arranged in the contact unit (23).
4. A plug connector as recited in claim 1, wherein: the floating unit (25) is in floating connection with the fixed unit (24) through the elastic element (30), and the floating unit (25) can drive the shell unit (21) to move.
5. A plug connector as recited in claim 4, wherein: be equipped with first installation cavity (2401) on fixed unit (24), be equipped with second installation cavity (2501) on floating unit (25), the one end of elastic element (30) is installed in first installation cavity (2401), and the other end is installed in second installation cavity (2501).
6. A plug connector as recited in claim 1, wherein: at least two contact units (23) share a floating unit (25).
7. A plug connector as recited in claim 1, wherein: at least one contact unit (23) is mounted on a different floating unit (25) than the other contact units (23).
8. A plug connector as recited in claim 1, wherein: the contact unit (23) is provided with a guide structure (2302) for facilitating butt joint.
9. A plug connector as recited in claim 1, wherein: the inner inserting end part realizes rotation prevention through the inserting core rotation preventing structure and the shell unit (21).
10. A plug connector as recited in claim 1, wherein: the inner engagement end member is engaged with the receptacle prior to the housing unit (21) being engaged with the plug-fixing portion (1).
11. A plug connector as recited in claim 1, wherein: when the plug is plugged, the shell unit (21) moves towards the direction close to the plug fixing part (1) through the floating unit (25), and after the contact unit (23) is plugged in place with the socket, the shell unit (21) is locked with the plug fixing part (1) through the locking unit (22) arranged on the shell unit (21).
12. A plug connector as recited in claim 1, wherein: the plug connector is provided with at least one wire outlet; when the plug connector is provided with a plurality of outlet ports, the included angle between every two adjacent outlet ports is 0-180 degrees.
13. A plug connector as recited in claim 1, wherein: be equipped with third step (2105) on the outer wall of sealed unit (27), be equipped with on the inner wall of housing unit (21) and use with third step (2105) cooperation for carrying out preceding spacing fourth step (2701) to sealed unit (27), still be equipped with second protruding edge (2702) on the outer wall of sealed unit (27), be equipped with on the inner wall of housing unit (21) and use with second protruding edge (2702) cooperation for carrying out spacing (2107) after sealed unit (27).
14. A plug connector as recited in claim 1, wherein: a third convex edge (2801) is arranged on the bending-resistant unit (28), a fourth limiting table (2106) is arranged on the inner wall of the rear end of the shell unit (21), and the fourth limiting table (2106) is matched with the third convex edge (2801) for use so as to prevent the bending-resistant unit (28) from falling out of the shell unit (21).
15. A plug fixing part is characterized in that: comprising a plug-securing part (1) adapted to the plug connector (2) of any one of claims 1 to 14.
16. A connector assembly, characterized by: comprises a plug connector (2) and a plug fixing part (1) matched with the plug connector (2), wherein the plug connector (2) is the plug connector as claimed in any one of claims 1 to 14.
CN202110687846.7A 2021-06-21 2021-06-21 Plug connector, plug fixing part and connector assembly Active CN113419311B (en)

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