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WO2019042392A1 - 连接器组件及其插头连接器、插芯单元 - Google Patents

连接器组件及其插头连接器、插芯单元 Download PDF

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Publication number
WO2019042392A1
WO2019042392A1 PCT/CN2018/103449 CN2018103449W WO2019042392A1 WO 2019042392 A1 WO2019042392 A1 WO 2019042392A1 CN 2018103449 W CN2018103449 W CN 2018103449W WO 2019042392 A1 WO2019042392 A1 WO 2019042392A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
housing
unit
casing
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/103449
Other languages
English (en)
French (fr)
Inventor
刘乃常
胡凯
王旭涛
韩云钊
姚文浩
申金科
李卫可
武学顺
徐耕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Aviation Optical Electrical Technology Co Ltd
Original Assignee
China Aviation Optical Electrical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Aviation Optical Electrical Technology Co Ltd filed Critical China Aviation Optical Electrical Technology Co Ltd
Priority to EP18851003.6A priority Critical patent/EP3671299B1/en
Priority to JP2020511941A priority patent/JP7015908B2/ja
Priority to US16/642,379 priority patent/US11143824B2/en
Priority to KR1020207009145A priority patent/KR102405501B1/ko
Publication of WO2019042392A1 publication Critical patent/WO2019042392A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3869—Mounting ferrules to connector body, i.e. plugs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
    • G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
    • G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means
    • G02B6/3879—Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3895—Dismountable connectors, i.e. comprising plugs identification of connection, e.g. right plug to the right socket or full engagement of the mating parts
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards

Definitions

  • the invention relates to a connector assembly and a plug connector and a ferrule unit.
  • the plug connector includes a ferrule unit, and the ferrule unit includes a plug housing.
  • the plug housing is internally provided with a plug unit, and the rear side of the plug unit is provided with an optical fiber, and the optical fiber is in the plug connector.
  • the contact piece of the plug unit is connected, in order to ensure that the contact piece in the plug connector can be stably connected with the corresponding socket connector, the contact piece is usually floated and installed in the plug unit, specifically, it is set in the plug unit for A spring that applies a forward force to the contact member so that the floating mounting of the contact member satisfies the assembly tolerance of the socket and the pin during the plug-to-socket insertion process.
  • Threading the protective housing with the socket housing ensures the fixing of the plug unit in the socket connector, and the thread size on the socket connector in different positions has a certain deviation in the front-rear direction, that is, the plug connector is fixed at When the socket connector is on, the plug unit has reached the plugged position in the socket connector, but due to the different thread size, the protective shell on the socket housing and the plug connector is not locked yet, and the forward screwing protection is continued.
  • the outer casing may cause a strong pressing force between the plug unit and the socket connector, causing the plug unit to be damaged by strong pressure.
  • the ferrule unit of the present invention adopts the following technical solutions:
  • the ferrule unit has a front end as a plug end, and includes a front housing and a rear housing which are guided in the front-rear direction, and the rear housing is provided with a wearing structure for the optical cable to be worn, and the front end of the front housing is provided with a plug A limiting structure for restricting the extreme positions of the two in the front-rear direction is provided between the front casing and the rear casing.
  • a spring is disposed between the rear casing and the front casing and/or between the rear casing and the plug unit. The elastic support between the rear housing and the front housing is achieved.
  • the wearing structure is a wearing hole provided on the rear case. Protect the cable.
  • the rear housing is guide-inserted in the front housing
  • the limiting structure includes an inner flange disposed on an inner side wall of the front housing, and further includes an inner convex surface disposed on the outer circumferential surface of the rear housing An outer boss that engages the front and rear of the edge. It is ensured that the rear casing and the front casing are separated from each other while guiding assembly between the two.
  • the front casing is formed by the upper and lower parts being interlocked with each other or by an integral structure. Convenient assembly of springs, plugs and rear housings.
  • the front housing includes a lower support seat and an upper cover plate, and the support base is provided with a wear slot for spring wear.
  • the structure is simple and easy to assemble.
  • the guiding mating surface between the rear housing and the front housing is a circular arc surface, and the rear housing can be circumferentially floated in the front housing.
  • the circumferential movement of the rear housing relative to the front housing is ensured, and the optical cable can be rotated slightly when the plug and the socket are locked in the process of plugging the plug and the socket, so as to meet the installation requirements of the plug connector.
  • the rear casing is provided with a relief surface for avoiding the cover plate, and a floating gap is formed between the lower plate surface of the cover plate and the avoidance surface.
  • the floating width of the rear case can be restricted by the lower plate surface of the cover plate while ensuring that the rear case floats circumferentially relative to the front case, thereby preventing the optical core from being excessively twisted and causing the internal light path to be broken.
  • the cover plate is provided with an unlocking elastic piece for pressing down the locking elastic piece on the plug unit to unlock the plug unit. Easy to unlock and simple in structure.
  • plug units There are two or more plug units, and the inside of the spring constitutes a fitting passage through which the optical cores on each plug unit pass together.
  • the overall stability is better and the structure is more compact.
  • the plug unit is an LC plug, an SC plug or an MTP plug or an optical plug module. Increase versatility.
  • the front housing and the rear housing are non-rotating assembled. Ensure the anti-torsion protection of the cable.
  • the front housing and the rear housing realize the rotation preventing assembly by the front and rear extended key and keyway guiding engagements disposed on the two.
  • the structure is simple and convenient for processing and assembly.
  • the plug connector comprises a ferrule unit and a protective cover disposed outside the ferrule unit, the ferrule unit having a front end as a plug end, the ferrule unit comprising a front housing and a rear housing guided in the front-rear direction, and then
  • the housing is provided with a wearing structure for the cable to be worn, the rear housing is facing the rear stop protection outer casing, the front end of the front housing is provided with a plug unit, and the front housing and the rear housing are respectively provided for limiting The limit structure of the extreme positions where the two are separated in the front-rear direction.
  • a spring is disposed between the rear casing and the front casing and/or between the rear casing and the plug unit. The elastic support between the rear housing and the front housing is achieved.
  • the wearing structure is a wearing hole provided on the rear case. Protect the cable.
  • the rear housing is guide-inserted in the front housing
  • the limiting structure includes an inner flange disposed on an inner side wall of the front housing, and further includes an inner convex surface disposed on the outer circumferential surface of the rear housing An outer boss that engages the front and rear of the edge. It is ensured that the rear casing and the front casing are separated from each other while guiding assembly between the two.
  • the front casing is formed by the upper and lower parts being interlocked with each other or by an integral structure. Convenient assembly of springs, plugs and rear housings.
  • the front housing includes a lower support seat and an upper cover plate, and the support base is provided with a wear slot for spring wear.
  • the structure is simple and easy to assemble.
  • the guiding mating surface between the rear housing and the front housing is a circular arc surface, and the rear housing can be circumferentially floated in the front housing.
  • the circumferential movement of the rear housing relative to the front housing is ensured, and the optical cable can be rotated slightly when the plug and the socket are locked in the process of plugging the plug and the socket, so as to meet the installation requirements of the plug connector.
  • the rear casing is provided with a relief surface for avoiding the cover plate, and a floating gap is formed between the lower plate surface of the cover plate and the avoidance surface.
  • the floating width of the rear case can be restricted by the lower plate surface of the cover plate while ensuring that the rear case floats circumferentially relative to the front case, thereby preventing the optical core from being excessively twisted and causing the internal light path to be broken.
  • the cover plate is provided with an unlocking elastic piece for pressing down the locking elastic piece on the plug unit to unlock the plug unit. Easy to unlock and simple in structure.
  • plug units There are two or more plug units, and the inside of the spring constitutes a fitting passage through which the optical cores on each plug unit pass together.
  • the overall stability is better and the structure is more compact.
  • the plug unit is an LC plug, an SC plug or an MTP plug or an optical plug module. Increase versatility.
  • the front housing and the rear housing are non-rotating assembled. Ensure the anti-torsion protection of the cable.
  • the front housing and the rear housing realize the rotation preventing assembly by the front and rear extended key and keyway guiding engagements disposed on the two.
  • the structure is simple and convenient for processing and assembly.
  • the connector assembly includes a plug connector and a socket connector, the plug connector includes a ferrule unit and a protective cover that is disposed outside the ferrule unit, the ferrule unit has a front end as a plug end, and the ferrule unit includes a front and rear direction
  • the front housing and the rear housing of the guiding assembly are provided with a wearing structure for the cable to be worn, the rear housing is facing the rear stop protection outer casing, and the front end of the front housing is provided with a plug single body, front A limiting structure for limiting the extreme positions of the two in the front-rear direction is provided between the casing and the rear casing.
  • a spring is disposed between the rear casing and the front casing and/or between the rear casing and the plug unit. The elastic support between the rear housing and the front housing is achieved.
  • the wearing structure is a wearing hole provided on the rear case. Protect the cable.
  • the rear housing is guide-inserted in the front housing
  • the limiting structure includes an inner flange disposed on an inner side wall of the front housing, and further includes an inner convex surface disposed on the outer circumferential surface of the rear housing An outer boss that engages the front and rear of the edge. It is ensured that the rear casing and the front casing are separated from each other while guiding assembly between the two.
  • the front casing is formed by the upper and lower parts being interlocked with each other or by an integral structure. Convenient assembly of springs, plugs and rear housings.
  • the front housing includes a lower support seat and an upper cover plate, and the support base is provided with a wear slot for spring wear.
  • the structure is simple and easy to assemble.
  • the guiding mating surface between the rear housing and the front housing is a circular arc surface, and the rear housing can be circumferentially floated in the front housing.
  • the circumferential movement of the rear housing relative to the front housing is ensured, and the optical cable can be rotated slightly when the plug and the socket are locked in the process of plugging the plug and the socket, so as to meet the installation requirements of the plug connector.
  • the rear casing is provided with a relief surface for avoiding the cover plate, and a floating gap is formed between the lower plate surface of the cover plate and the avoidance surface.
  • the floating width of the rear case can be restricted by the lower plate surface of the cover plate while ensuring that the rear case floats circumferentially relative to the front case, thereby preventing the optical core from being excessively twisted and causing the internal light path to be broken.
  • the cover plate is provided with an unlocking elastic piece for pressing down the locking elastic piece on the plug unit to unlock the plug unit. Easy to unlock and simple in structure.
  • plug units There are two or more plug units, and the inside of the spring constitutes a fitting passage through which the optical cores on each plug unit pass together.
  • the overall stability is better and the structure is more compact.
  • the plug unit is an LC plug, an SC plug or an MTP plug or an optical plug module. Increase versatility.
  • the front housing and the rear housing are non-rotating assembled. Ensure the anti-torsion protection of the cable.
  • the front housing and the rear housing realize the rotation preventing assembly by the front and rear extended key and keyway guiding engagements disposed on the two.
  • the structure is simple and convenient for processing and assembly.
  • the utility model has the beneficial effects that the plug connector according to the present invention can float back and forth relative to the front casing by guiding the rear casing and the front casing to be floatingly assembled, thereby
  • the utility model can ensure that, after the plug unit is inserted into the position, the operation of the protective shell and the socket shell is locked and matched, the rear shell has a certain floating space forward under the pushing of the protective shell, and satisfies the inside of the socket housing.
  • Different installation tolerances the structure is relatively simple, and the plug unit is prevented from being damaged by strong pressure.
  • FIG. 1 is a schematic structural view of a first embodiment of a ferrule unit according to the present invention
  • FIG. 2 is a schematic structural view of the ferrule unit of FIG. 1 with the cover removed;
  • Figure 3 is a longitudinal cross-sectional view of Figure 2 along the direction in which the ferrule unit extends;
  • Figure 4 is a transverse cross-sectional view of Figure 2 along the direction in which the ferrule unit extends;
  • Figure 5 is a schematic structural view of a second embodiment of the ferrule unit of the present invention.
  • Fig. 6 is a schematic structural view of a third embodiment of the ferrule unit of the present invention.
  • Embodiment 1 of the ferrule unit of the present invention As shown in FIGS. 1 to 4, the ferrule unit includes a front case and a rear case 2 which are guided in the front-rear direction, and the front end of the front case is fixed with two LCs. a type of plug unit 3, the rear housing 2 is provided with a through hole 21 for the cable to be worn. Of course, in other embodiments, a wear slot for cable insertion may be provided on the rear case. Instead of the wearing hole, the inside of the plug unit 3 is fixed with a contact member 31.
  • the optical core therein extends forward into the outer casing of the plug unit 3, and the contact member 31 is connected to realize light path conduction, and a contact floating spring 32 is disposed between the contact member 31 in the plug unit 3 and the outer casing, and the contact floating spring 32 functions to insert the plug when the plug and the socket are inserted.
  • the stable contact between the contact 31 of the 3 and the mating contact 31 on the socket prevents the contact between the two from being unstable or undue.
  • the plug floating spring 5 is disposed between the plug unit 3 and the rear housing 2, and the plug floating spring 5 is inserted into the front housing, and the front end thereof is pressed against the rear end of the plug unit 3, and the rear housing
  • the front end of the second end is provided with a spring receiving hole extending forward and backward, and the rear end of the plug floating spring 5 projects into the spring receiving hole, thereby achieving relative floating assembly between the rear housing 2 and the plug unit 3 in the front-rear direction.
  • a limit structure for restricting the extreme positions of the front case and the rear case 2 separated in the front-rear direction is provided between the front case and the rear case 2, and in the present embodiment, the rear case 2 is guided to be inserted in front.
  • the limiting structure includes an inner flange 11 disposed at a rear end of the front housing, and an outer boss 22 disposed on an outer circumferential surface of the rear housing 2 to be engaged with the inner flange 11 in a front-rear direction.
  • the front housing For the front housing, it comprises a support base 1 which is U-shaped, and the U-shaped groove of the support base 1 extends in the front-rear direction to form a wear slot for the spring to be worn, and at the same time, the rear housing 2 is inserted Mounted on the rear side of the U-shaped groove, the plug unit 3 is fixed to the front side in the U-shaped groove. A cover plate 4 is fastened on the upper end of the U-shaped groove.
  • two laterally extending arms are disposed on the left and right arms of the support base 1 , and correspondingly disposed on the left and right sides of the cover 4
  • the flange provided in the card slot is fastened to the upper end of the support base 1 by the snap fit of the flange and the card slot, thereby enclosing the plug floating spring 5 therein.
  • the sliding engagement between the outer boss 22 and the inner side wall of the support base 1 achieves a guiding fit, and the guiding contact surface between the front housing and the rear housing 2 is a circular arc surface.
  • the rear housing 2 can be rotated relative to the front housing to ensure that the optical cable can float in a small extent when the plug connector and the socket connector are locked together during the plug connector and the socket connector, and the plug can be satisfied. Connector installation requirements.
  • the front end surface of the rear case 2 has a relief surface 23 for avoiding the mounting position of the cover plate 4 described above, and the escape surface 23 has a certain floating gap between the lower plate surface of the cover plate 4, so that While ensuring the rotation of the rear casing 2 relative to the front casing, the circumferential floating extent of the rear casing 2 is restricted by the lower plate surface of the cover plate 4, thereby preventing the optical core from being excessively twisted and causing the internal optical path to be broken.
  • the front housing and the rear housing are relatively non-rotating, that is to say through the front housing.
  • a keyway is disposed on the inner side wall of the bottom, and a key is disposed on the outer side wall of the bottom of the rear casing, and the relative rotation preventing fit between the front casing and the rear casing is realized by the plug-in engagement of the key and the keyway.
  • the inner dimensions of the front housing may be set to a polygonal structure that is adapted to the outer dimensions of the rear housing, and the relative rotational locking fit may also be achieved.
  • the upper surface of the outer casing of the plug unit 3 is provided with a locking elastic piece 33 for locking the plug unit 3 in the socket of the socket, and the rear end of the locking elastic piece 33 is an upturned free end, corresponding to the cover plate.
  • the upper surface of the upper plate 4 is provided with an unlocking elastic piece 41.
  • the front end of the unlocking elastic piece 41 is an upturned free end, and the free end of the unlocking elastic piece 41 extends above the free end of the locking elastic piece 33, and when unlocked, is unlocked by pressing down.
  • the elastic piece 41, and thus the pressing and locking elastic piece 33 is bent downward to realize unlocking of the plug unit 3.
  • the enclosed intermediate chamber can be passed through by the optical core on each plug unit 3, that is, the front end of the plug floating spring 5 is simultaneously pressed against the two plug units 3
  • the end and the optical core on the rear side of the plug unit 3 are enclosed therein to ensure the stability of the rear housing 2 to the floating.
  • the second embodiment of the plug of the present invention is different from the first embodiment in that a spring 25 is press-fitted between the front casing and the rear casing 2, and as shown in FIG. 5, the rear casing 2 can also be realized. Floating installation.
  • the third embodiment of the plug of the present invention is different from the first embodiment in that: as shown in FIG. 6, the front housing can be inserted into the rear housing 2 to achieve relative guiding of the two, and the limiting structure is disposed through The inner flange 11 on the inner side wall of the rear case 2 and the outer boss 22 provided on the outer periphery of the front case are realized.
  • the front case may be formed in a unitary structure, and an elastic barb structure with respect to the inner flange is disposed on the circumferential surface of the rear case, thereby forcibly inserting the rear case into the front case;
  • the single body may be an SC plug, or may be an MTP plug or the like, which is applied to a plug structure or an optical plug-in module in a plug connector; the plug unit may have only one, or may be correspondingly increased according to actual needs; the floating spring may also It is not set on the optical core and is directly placed outside the optical core.
  • the floating spring may not be disposed between the front casing and the rear casing, and the front casing and the rear casing may be directly guided and assembled, and the rear casing may have a certain floating space relative to the front casing. .
  • the plug connector according to the present invention comprises a ferrule unit and a protective cover that is disposed outside the ferrule unit.
  • the ferrule unit has the same structural form as that of the ferrule unit described above, and is not developed in detail.
  • a connector assembly according to the present invention includes a plug connector and a socket connector, the plug connector including a ferrule unit and a protective cover disposed outside the ferrule unit, the ferrule unit having the structural form and the ferrule unit described above
  • the structure is consistent and will not be expanded in detail.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

本发明涉及一种连接器组件及其插头连接器、插芯单元，插芯单元以其前端为插接端，包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，前壳体的前端设有插头单体，前壳体、后壳体之间设有用于限制二者沿前后方向分离的极限位置的限位结构，能够保证在插头单体插接到位后，继续将防护外壳与插座壳体相互锁紧配合的过程中，后壳体在防护外壳的顶推下向前具有一定的浮动空间，满足插座壳体内的不同的安装公差，结构比较简单，避免了插头单体受强压而损坏。

Description

连接器组件及其插头连接器、插芯单元 技术领域
本发明涉及一种连接器组件及其插头连接器、插芯单元。
背景技术
现有技术中，插头连接器包括插芯单元，插芯单元包括插头壳体，插头壳体的内部设置有插头单体，插头单体的后侧穿装有光纤，光纤在插头连接器内与插头单体的接触件连接，为了保证插头连接器内的接触件能够稳定的与对应的插座连接器连接，通常是将接触件浮动安装于插头单体内，具体的是在插头单体内设置用于向接触件施加向前的作用力的弹簧，从而使得插头与插座插接的过程中，通过接触件的浮动安装满足插孔和插针的装配公差的要求。
但是现有技术中存在插头连接器与插座连接器插接后，一般需要将插头连接器锁紧在插座连接器上，在插座连接器的壳体上设置螺纹，插芯单元外部罩设防护外壳，通过防护外壳与插座壳体螺纹配合保证插头单体在插座连接器内的固定，而由于不同位置的插座连接器上的螺纹尺寸沿前后方向具有一定的偏差，即在将插头连接器固定在插座连接器上时，插头单体在插座连接器内已经到达插接位置，但是由于螺纹的尺寸不同，插座壳体与插头连接器上的防护外壳还未锁紧，而继续向前旋拧防护外壳可能会导致插头单体与插座连接器之间产生较强的挤压力，导致插头单体受强压损坏。
发明内容
本发明的目的在于提供一种避免插头单体被强压损坏的连接器组件；本发明的目的还在于提供一种该连接器组件的插头连接器；本发明的目的还在于提供一种该插头连接器的插芯单元。
为实现上述目的，本发明的插芯单元采用以下技术方案：
插芯单元，以其前端为插接端，包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，前壳体的前端设有插头单体，前壳体、后壳体之间设有用于限制二者沿前后方向分离的极限位置的限位结构。
所述后壳体与前壳体之间和/或后壳体与插头单体之间顶压设有弹簧。实现 后壳体与前壳体之间的弹性支撑。
所述穿装结构为设置在后壳体上的穿装孔。对线缆起到防护作用。
所述后壳体导向插装于前壳体中，所述限位结构包括设置在前壳体的内侧壁上的内凸缘，还包括设置在后壳体上的外周面上的与内凸缘前后挡止配合的外凸台。保证二者之间导向装配的同时，防止后壳体与前壳体相互脱离。
所述前壳体由上下两部分相互扣合或采用一体结构合围形成。方便弹簧、插头单体和后壳体的装配。
所述前壳体包括下侧的支撑座和上侧的盖板，所述支撑座上设有供弹簧穿装的穿装槽。结构简单,方便装配。
所述后壳体与前壳体之间的导向配合面为圆弧形面，所述后壳体在前壳体内可周向浮动。实现在后壳体相对前壳体周向浮动，保证在插头与插座插接的过程中插头与插座锁紧时光缆能够小幅度的转动，满足插头连接器的安装要求。
所述后壳体上设有用于避让盖板的避让表面，盖板的下板面与避让表面之间具有浮动间隙。能够在保证后壳体相对前壳体周向浮动的同时，通过盖板的下板面来限制后壳体的浮动的幅度，防止光芯过度扭转而导致内部光路被破坏。
所述盖板上设置有用于向下顶压插头单体上的锁止弹片而实现插头单体解锁的解锁弹片。方便解锁,结构简单。
所述插头单体有两个以上，所述弹簧的内部构成供每个插头单体上的光芯共同穿过的穿装通道。整体稳定性较好,结构更加紧凑。
所述插头单体为LC插头、SC插头或MTP插头或光插接模块。增加通用性。
前壳体、后壳体止转装配。保证对线缆的抗扭防护。
前壳体、后壳体通过分设在二者上的前后延伸的键和键槽导向配合实现止转装配。结构简单，方便加工装配。
本发明的插头连接器采用以下技术方案：
插头连接器，包括插芯单元和罩设在插芯单元外部的防护外壳，插芯单元以其前端为插接端，插芯单元包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，所述后壳体朝后止挡防护外壳，前壳体的前端设有插头单体，前壳体、后壳体之间设有用于限制二者沿前后方向分离的极限位置的限位结构。
所述后壳体与前壳体之间和/或后壳体与插头单体之间顶压设有弹簧。实现后壳体与前壳体之间的弹性支撑。
所述穿装结构为设置在后壳体上的穿装孔。对线缆起到防护作用。
所述后壳体导向插装于前壳体中，所述限位结构包括设置在前壳体的内侧壁上的内凸缘，还包括设置在后壳体上的外周面上的与内凸缘前后挡止配合的外凸台。保证二者之间导向装配的同时，防止后壳体与前壳体相互脱离。
所述前壳体由上下两部分相互扣合或采用一体结构合围形成。方便弹簧、插头单体和后壳体的装配。
所述前壳体包括下侧的支撑座和上侧的盖板，所述支撑座上设有供弹簧穿装的穿装槽。结构简单,方便装配。
所述后壳体与前壳体之间的导向配合面为圆弧形面，所述后壳体在前壳体内可周向浮动。实现在后壳体相对前壳体周向浮动，保证在插头与插座插接的过程中插头与插座锁紧时光缆能够小幅度的转动，满足插头连接器的安装要求。
所述后壳体上设有用于避让盖板的避让表面，盖板的下板面与避让表面之间具有浮动间隙。能够在保证后壳体相对前壳体周向浮动的同时，通过盖板的下板面来限制后壳体的浮动的幅度，防止光芯过度扭转而导致内部光路被破坏。
所述盖板上设置有用于向下顶压插头单体上的锁止弹片而实现插头单体解锁的解锁弹片。方便解锁,结构简单。
所述插头单体有两个以上，所述弹簧的内部构成供每个插头单体上的光芯共同穿过的穿装通道。整体稳定性较好,结构更加紧凑。
所述插头单体为LC插头、SC插头或MTP插头或光插接模块。增加通用性。
前壳体、后壳体止转装配。保证对线缆的抗扭防护。
前壳体、后壳体通过分设在二者上的前后延伸的键和键槽导向配合实现止转装配。结构简单，方便加工装配。
本发明的连接器组件采用以下技术方案：
连接器组件，包括插头连接器和插座连接器，插头连接器包括插芯单元和罩设在插芯单元外部的防护外壳，插芯单元以其前端为插接端，插芯单元包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，所述后壳体朝后止挡防护外壳，前壳体的前端设有插头单体，前壳体、后壳体之间设 有用于限制二者沿前后方向分离的极限位置的限位结构。
所述后壳体与前壳体之间和/或后壳体与插头单体之间顶压设有弹簧。实现后壳体与前壳体之间的弹性支撑。
所述穿装结构为设置在后壳体上的穿装孔。对线缆起到防护作用。
所述后壳体导向插装于前壳体中，所述限位结构包括设置在前壳体的内侧壁上的内凸缘，还包括设置在后壳体上的外周面上的与内凸缘前后挡止配合的外凸台。保证二者之间导向装配的同时，防止后壳体与前壳体相互脱离。
所述前壳体由上下两部分相互扣合或采用一体结构合围形成。方便弹簧、插头单体和后壳体的装配。
所述前壳体包括下侧的支撑座和上侧的盖板，所述支撑座上设有供弹簧穿装的穿装槽。结构简单,方便装配。
所述后壳体与前壳体之间的导向配合面为圆弧形面，所述后壳体在前壳体内可周向浮动。实现在后壳体相对前壳体周向浮动，保证在插头与插座插接的过程中插头与插座锁紧时光缆能够小幅度的转动，满足插头连接器的安装要求。
所述后壳体上设有用于避让盖板的避让表面，盖板的下板面与避让表面之间具有浮动间隙。能够在保证后壳体相对前壳体周向浮动的同时，通过盖板的下板面来限制后壳体的浮动的幅度，防止光芯过度扭转而导致内部光路被破坏。
所述盖板上设置有用于向下顶压插头单体上的锁止弹片而实现插头单体解锁的解锁弹片。方便解锁,结构简单。
所述插头单体有两个以上，所述弹簧的内部构成供每个插头单体上的光芯共同穿过的穿装通道。整体稳定性较好,结构更加紧凑。
所述插头单体为LC插头、SC插头或MTP插头或光插接模块。增加通用性。
前壳体、后壳体止转装配。保证对线缆的抗扭防护。
前壳体、后壳体通过分设在二者上的前后延伸的键和键槽导向配合实现止转装配。结构简单，方便加工装配。
本发明的有益效果是：相比于现有技术，本发明所涉及的插头连接器，通过将后壳体与前壳体导向浮动装配，使后壳体相对于前壳体可前后浮动，从而能够保证在插头单体插接到位后，继续操作防护外壳与插座壳体相互锁紧配合的过程中，后壳体在防护外壳的顶推下向前具有一定的浮动空间，满足插座壳体内的不 同的安装公差，结构比较简单，避免了插头单体受强压而损坏。
附图说明
图1为本发明的插芯单元的实施例一的结构示意图；
图2为图1中插芯单元去掉盖板的结构示意图；
图3为图2中沿插芯单元延伸方向的纵向剖视图；
图4为图2中沿插芯单元延伸方向的横向剖视图；
图5为本发明的插芯单元的实施例二的结构示意图；
图6为本发明的插芯单元的实施例三的结构示意图。
具体实施方式
下面结合附图对本发明的实施方式作进一步说明。
本发明的插芯单元的实施例一：如图1至图4所示，该插芯单元包括沿前后方向导向装配的前壳体和后壳体2，前壳体的前端固定有两个LC型的插头单体3，后壳体2上设置有供光缆穿装的穿装孔21，当然，在其他实施例中，也可以在后壳体上设置供线缆穿装的穿装槽来代替穿装孔，插头单体3的内部固定有接触件31，上述的光缆固定在穿装孔21内之后，其内的光芯向前延伸进入插头单体3的外壳内，并与接触件31连接实现光路导通，插头单体3内的接触件31与外壳之间顶压设置有接触件浮动弹簧32，接触件浮动弹簧32的作用是为了在插头与插座插接时，插头单体3的接触件31与插座上的适配接触件31之间稳定的对接，防止二者之间接触不稳定或未对接。
上述的插头单体3与后壳体2之间顶压设置有插头浮动弹簧5，插头浮动弹簧5穿装于前壳体中，其前端顶压于插头单体3的后端，后壳体2的前端设置有前后延伸的弹簧容纳孔，插头浮动弹簧5的后端伸入至弹簧容纳孔中，从而实现后壳体2与插头单体3之间沿前后方向的相对浮动装配。在前壳体和后壳体2之间设置有用于限制前壳体和后壳体2沿前后方向分离的极限位置的限位结构，在本实施例中，后壳体2导向插装于前壳体中，限位结构包括设置在前壳体的后端的内凸缘11，还包括设置在后壳体2的外周面上的与内凸缘11前后挡止配合的外凸台22。从而保证在插头浮动弹簧5的顶压下，后壳体2保持在前壳体的后侧，且不会向后与前壳体相互分离。
对于前壳体来说，其包括支撑座1，支撑座1呈U形，支撑座1的U形槽沿 前后方向延伸，构成了供弹簧穿装的穿装槽，同时，后壳体2插装于U形槽内的后侧，插头单体3固定于U形槽内的前侧。在U形槽的上端扣设有盖板4，具体的为在支撑座1的左右两个支臂上设置有横向延伸的同向卡槽，相应的在盖板4的左右两侧设置有卡设在卡槽内的凸边，通过凸边与卡槽的卡接配合实现将盖板4扣设在支撑座1的上端，从而将插头浮动弹簧5围在其中。
对于后壳体2来说，其通过上述的外凸台22与支撑座1的内侧壁相对滑移实现导向配合，同时前壳体和后壳体2之间的导向接触面为圆弧面，这样可以实现在后壳体2相对前壳体转动，保证在插头连接器与插座连接器插接的过程中插头连接器与插座连接器相互锁紧时光缆能够小幅度的周向浮动，满足插头连接器的安装要求。同时，在后壳体2的前端周面具有用于避让上述的盖板4的安装位置的避让表面23，且避让表面23与盖板4的下板面之间具有一定的浮动间隙，这样能够在保证后壳体2相对前壳体转动的同时，通过盖板4的下板面来限制后壳体2的周向浮动幅度，防止光芯过度扭转而导致内部光路被破坏。
与此同时，为了保证插芯单元与对应的插座连接时的线缆的抗扭性能，在本实施例中，前壳体与后壳体相对止转配合，也就是说通过在前壳体的底部内侧壁上设置键槽，在后壳体的底部外侧壁上设置键，通过键与键槽的插接配合实现前壳体与后壳体之间的相对止转配合。当然，在其他实施例中，可以将前壳体的内部尺寸设置为与后壳体的外部尺寸适配的多边形结构，也可实现二者相对止转配合。
上述的插头单体3的外壳的上表面上设置有可将插头单体3锁定在插座的插孔内的锁定弹片33，锁定弹片33的后端为上翘的自由端，对应的在盖板4的上板面上设置有解锁弹片41，解锁弹片41的前端为上翘的自由端，且解锁弹片41的自由端延伸至锁定弹片33的自由端的上方，在解锁时，通过向下按压解锁弹片41，进而顶压锁定弹片33向下弯折，实现插头单体3的解锁。
对于插头浮动弹簧5来说，其围成的中间腔室可供每个插头单体3上的光芯共同穿过，即插头浮动弹簧5的前端同时顶压于两个插头单体3的后端，并将插头单体3后侧的光芯围设在其内，保证后壳体2导向浮动的稳定性。
本发明的插头的实施例二：与实施例一的不同之处在于，可在前壳体与后壳体2之间顶压设置弹簧25，如图5所示，也能实现后壳体2的浮动安装。
本发明的插头的实施例三：与实施例一的不同之处在于：如图6所示，前壳体可插装在后壳体2中实现二者的相对导向，限位结构通过设置在后壳体2内侧壁上的内凸缘11和设置在前壳体外周上的外凸台22实现。
在其他实施例中，前壳体可以为一体结构合围形成，在后壳体的周面上设置相对于内凸缘的弹性倒刺结构，从而将后壳体强装入前壳体中；插头单体可以为SC插头，也可以为MTP插头等其他应用于插头连接器中的插头结构或者光插接模块；插头单体可以只有一个，也可根据实际的需要相应的增加；浮动弹簧也可以不套设在光芯上，直接设置在光芯外部。在其他实施例中，在前壳体和后壳体之间也可以不设置浮动弹簧，直接将前壳体和后壳体导向装配，也能够使后壳体相对前壳体具有一定的浮动空间。
本发明所涉及的插头连接器，包括插芯单元和罩设在插芯单元外部的防护外壳，该插芯单元的结构形式与上述的插芯单元的结构形式一致，不再详细展开。
本发明所涉及的连接器组件，包括插头连接器和插座连接器，插头连接器包括插芯单元和罩设在插芯单元外部的防护外壳，该插芯单元的结构形式与上述的插芯单元的结构形式一致，不再详细展开。

Claims (39)

  1. 插芯单元，以其前端为插接端，其特征在于：包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，前壳体的前端设有插头单体，前壳体、后壳体之间设有用于限制二者沿前后方向分离的极限位置的限位结构。
  2. 根据权利要求1所述的插芯单元，其特征在于：所述后壳体与前壳体之间和/或后壳体与插头单体之间顶压设有弹簧。
  3. 根据权利要求2所述的插芯单元，其特征在于：所述穿装结构为设置在后壳体上的穿装孔。
  4. 根据权利要求1-3任一项所述的插芯单元，其特征在于：所述后壳体导向插装于前壳体中，所述限位结构包括设置在前壳体的内侧壁上的内凸缘，还包括设置在后壳体上的外周面上的与内凸缘前后挡止配合的外凸台。
  5. 根据权利要求4所述的插芯单元，其特征在于：所述前壳体由上下两部分相互扣合或采用一体结构合围形成。
  6. 根据权利要求5所述的插芯单元，其特征在于：所述前壳体包括下侧的支撑座和上侧的盖板，所述支撑座上设有供弹簧穿装的穿装槽。
  7. 根据权利要求6所述的插芯单元，其特征在于：所述后壳体与前壳体之间的导向配合面为圆弧形面，所述后壳体在前壳体内可周向浮动。
  8. 根据权利要求7所述的插芯单元，其特征在于：所述后壳体上设有用于避让盖板的避让表面，盖板的下板面与避让表面之间具有浮动间隙。
  9. 根据权利要求7所述的插芯单元，其特征在于：所述盖板上设置有用于向下顶压插头单体上的锁止弹片而实现插头单体解锁的解锁弹片。
  10. 根据权利要求2-3、5-9任一项所述的插芯单元，其特征在于：所述插头单体有两个以上，所述弹簧的内部构成供每个插头单体上的光芯共同穿过的穿装通道。
  11. 根据权利要求1-3、5-9任一项所述的插芯单元，其特征在于：所述插头单体为LC插头、SC插头或MTP插头或光插接模块。
  12. 根据权利要求1-3、5-9任一项所述的插芯单元，其特征在于：前壳体、后壳体止转装配。
  13. 根据权利要求12所述的插芯单元，其特征在于：前壳体、后壳体通过分设在二者上的前后延伸的键和键槽导向配合实现止转装配。
  14. 插头连接器，包括插芯单元和罩设在插芯单元外部的防护外壳，插芯单元以其前端为插接端，其特征在于：插芯单元包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，所述后壳体朝后止挡防护外壳，前壳体的前端设有插头单体，前壳体、后壳体之间设有用于限制二者沿前后方向分离的极限位置的限位结构。
  15. 根据权利要求14所述的插头连接器，其特征在于：所述后壳体与前壳体之间和/或后壳体与插头单体之间顶压设有弹簧。
  16. 根据权利要求15所述的插头连接器，其特征在于：所述穿装结构为设置在后壳体上的穿装孔。
  17. 根据权利要求14-16任一项所述的插头连接器，其特征在于：所述后壳体导向插装于前壳体中，所述限位结构包括设置在前壳体的内侧壁上的内凸缘，还包括设置在后壳体上的外周面上的与内凸缘前后挡止配合的外凸台。
  18. 根据权利要求17所述的插头连接器，其特征在于：所述前壳体由上下两部分相互扣合或采用一体结构合围形成。
  19. 根据权利要求18所述的插头连接器，其特征在于：所述前壳体包括下侧的支撑座和上侧的盖板，所述支撑座上设有供弹簧穿装的穿装槽。
  20. 根据权利要求19所述的插头连接器，其特征在于：所述后壳体与前壳体之间的导向配合面为圆弧形面，所述后壳体在前壳体内可周向浮动。
  21. 根据权利要求20所述的插头连接器，其特征在于：所述后壳体上设有用于避让盖板的避让表面，盖板的下板面与避让表面之间具有浮动间隙。
  22. 根据权利要求20所述的插头连接器，其特征在于：所述盖板上设置有用于向下顶压插头单体上的锁止弹片而实现插头单体解锁的解锁弹片。
  23. 根据权利要求15-16、18-22任一项所述的插头连接器，其特征在于：所述插头单体有两个以上，所述弹簧的内部构成供每个插头单体上的光芯共同穿过的穿装通道。
  24. 根据权利要求14-16、18-22任一项所述的插头连接器，其特征在于：所述插头单体为LC插头、SC插头或MTP插头或光插接模块。
  25. 根据权利要求14-16、18-22任一项所述的插头连接器，其特征在于：前壳体、后壳体止转装配。
  26. 根据权利要求25所述的插头连接器，其特征在于：前壳体、后壳体通过分设在二者上的前后延伸的键和键槽导向配合实现止转装配。
  27. 连接器组件，包括插头连接器和插座连接器，插头连接器包括插芯单元和罩设在插芯单元外部的防护外壳，插芯单元以其前端为插接端，其特征在于：插芯单元包括沿前后方向导向装配的前壳体、后壳体，后壳体上设有供光缆穿装的穿装结构，所述后壳体朝后止挡防护外壳，前壳体的前端设有插头单体，前壳体、后壳体之间设有用于限制二者沿前后方向分离的极限位置的限位结构。
  28. 根据权利要求27所述的连接器组件，其特征在于：所述后壳体与前壳体之间和/或后壳体与插头单体之间顶压设有弹簧。
  29. 根据权利要求28所述的连接器组件，其特征在于：所述穿装结构为设置在后壳体上的穿装孔。
  30. 根据权利要求27-29任一项所述的连接器组件，其特征在于：所述后壳体导向插装于前壳体中，所述限位结构包括设置在前壳体的内侧壁上的内凸缘，还包括设置在后壳体上的外周面上的与内凸缘前后挡止配合的外凸台。
  31. 根据权利要求30所述的连接器组件，其特征在于：所述前壳体由上下两部分相互扣合形成。
  32. 根据权利要求31所述的连接器组件，其特征在于：所述前壳体包括下侧的支撑座和上侧的盖板，所述支撑座上设有供弹簧穿装的穿装槽。
  33. 根据权利要求32所述的连接器组件，其特征在于：所述后壳体与前壳体之间的导向配合面为圆弧形面，所述后壳体在前壳体内可周向浮动。
  34. 根据权利要求33所述的连接器组件，其特征在于：所述后壳体上设有用于避让盖板的避让表面，盖板的下板面与避让表面之间具有浮动间隙。
  35. 根据权利要求33所述的连接器组件，其特征在于：所述盖板上设置有用于向下顶压插头单体上的锁止弹片而实现插头单体解锁的解锁弹片。
  36. 根据权利要求28-29、31-35任一项所述的连接器组件，其特征在于：所述插头单体有两个以上，所述弹簧的内部构成供每个插头单体上的光芯共同穿过 的穿装通道。
  37. 根据权利要求27-29、31-35任一项所述的连接器组件，其特征在于：所述插头单体为LC插头、SC插头或MTP插头或光插接模块。
  38. 根据权利要求27-29、31-35任一项所述的连接器组件，其特征在于：前壳体、后壳体止转装配。
  39. 根据权利要求38所述的连接器组件，其特征在于：前壳体、后壳体通过分设在二者上的前后延伸的键和键槽导向配合实现止转装配。
PCT/CN2018/103449 2017-08-31 2018-08-31 连接器组件及其插头连接器、插芯单元 Ceased WO2019042392A1 (zh)

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