CN108490551A - A kind of fiber connector, optical fiber connecting seat and joint - Google Patents

A kind of fiber connector, optical fiber connecting seat and joint Download PDF

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Publication number
CN108490551A
CN108490551A CN201810277458.XA CN201810277458A CN108490551A CN 108490551 A CN108490551 A CN 108490551A CN 201810277458 A CN201810277458 A CN 201810277458A CN 108490551 A CN108490551 A CN 108490551A
Authority
CN
China
Prior art keywords
fiber
insertion section
optical cable
main part
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.)
Granted
Application number
CN201810277458.XA
Other languages
Chinese (zh)
Other versions
CN108490551B (en
Inventor
黄美金
邹峰
杨涛
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.)
Fiberhome Telecommunication Technologies Co Ltd
Original Assignee
Fiberhome Telecommunication Technologies 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 Fiberhome Telecommunication Technologies Co Ltd filed Critical Fiberhome Telecommunication Technologies Co Ltd
Publication of CN108490551A publication Critical patent/CN108490551A/en
Application granted granted Critical
Publication of CN108490551B publication Critical patent/CN108490551B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G02B6/389—Dismountable 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
    • G02B6/3891—Bayonet type
    • 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
    • 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
    • G02B6/3833—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
    • G02B6/381—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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two 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
    • G02B6/3826—Dismountable 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
    • G02B6/3831—Dismountable 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 comprising a keying element on the plug or adapter, e.g. to forbid wrong connection
    • 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
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3881—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using grooves to align ferrule ends
    • 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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3816—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for use under water, high pressure connectors

Landscapes

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

Abstract

The invention discloses a kind of fiber connector, optical fiber connecting seat and joint, fiber connectors to include：Main part, main part are equipped with a cavity；It is mounted on the optical cable of main part, and optical cable stretches into cavity；Insertion section positioned at main part one end, the one end of insertion section far from main part are equipped with fiber stub；Wherein, insertion section end is additionally provided with the tubular structure around fiber stub, and tubular structure is arranged with fiber stub interval, and tubular structure outer surface is enclosed equipped with the first sealing structure.The present invention can prevent water from entering the region of fiber stub by the linkage interface of fiber connector and optical fiber connecting seat.

Description

A kind of fiber connector, optical fiber connecting seat and joint
Technical field
The present invention relates to computer communication fields, and in particular to a kind of fiber connector, optical fiber connecting seat are connected with optical fiber Component.
Background technology
During section cable wiring of registering one's residence of fiber to the home (Fiber To The Home, FTTH) network, generally use Fusion techniques distribute the optic fibre end of corresponding each household in fiber distribution box, the optic fibre end of each household and indoor optical cable are used up Fine heat sealing machine carries out welding in fiber distribution box, then indoor optical cable is routed to every household, in the other end of indoor optical cable, also needs Primary live welding is carried out, to be connected with the user terminal box of every household, is needed using above-mentioned fusion techniques special Fused fiber splice equipment, it is more demanding to the technology of operating personnel, and the process that operates is cumbersome, not convenient.
In order to simplify operation, CN105339822B discloses a kind of fiber connector, including optical cable, and inner sleeve element is internal Equipped with a cavity, in the cavity, inner sleeve element one end is solid with the optical cable for the optical fiber receiving that the optical cable extends Fixed, the other end is provided with sleeve, cover member, and the cover member is sheathed on the inner sleeve member outboard, wherein the inner sleeve Sleeve at least part of element protrudes from except the cover member, and the sleeve protrudes from the end except the cover member End is open there are one setting so that the tail end section of the sleeve is C-shaped.Water enters optical fiber location in order to prevent, Scheme disclosed in CN105339822B is arranged with the O-ring seals to seal by one end of connector, but it can only Prevent water from entering the region of fiber stub between cover member and connector, but water cannot be prevented by from fibre-optical splice and The linkage interface of optical fiber connecting seat enters the region of fiber stub.
Meanwhile the diameter that sealing ring necessarily will increase entire optical fiber connector is set on cover member, to reduce unit Can arrange the quantity of optical fiber connector in area.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of fiber connector, optical fiber to connect Seat and joint, can prevent water from entering the area of fiber stub by the linkage interface of fiber connector and optical fiber connecting seat Domain.
To achieve the above objectives, the present invention provides a kind of fiber connector comprising：
Main part, the main part are equipped with a cavity；
It is mounted on the optical cable of the main part, and the optical cable stretches into the cavity；
Insertion section positioned at main part one end, the one end of the insertion section far from the main part are equipped with fiber stub；Its In,
The insertion section end is additionally provided with the tubular structure around the fiber stub, the tubular structure and the optical fiber Lock pin interval is arranged, and the tubular structure outer surface is enclosed equipped with the first sealing structure；And/or
The end face of the tubular structure is equipped with the first sealing structure.
First sealing structure can prevent water from entering fiber stub by the linkage interface of fiber connector and optical fiber connecting seat Region, intake so as to avoid optical fiber and the loss that brings, and the first sealing structure is arranged most from fiber stub On close tubular structure, sealing structure is effectively reduced to the distance for needing waterproof construction, is reduced in sealing structure to needing waterproof construction Between form the probability of new seepage point, improve the waterproof effect in fiber stub region.
Based on the above technical solution, an insertion space is formed between the tubular structure and the fiber stub, And the position of first sealing structure be configured in so that the position of the first sealing structure is defined with optical cable where straight line it is vertical Face pass through the insertion space.
Based on the above technical solution, the insertion space is annular.
The more convenient matching when being inserted into of the insertion space of annular.
Based on the above technical solution, first sealing structure is a sealing ring or multiple spaced sealings Circle.
It is sealed using sealing ring, sealing effect is good, at low cost.
Based on the above technical solution,
The insertion section is integrally formed with the main part；Alternatively,
The insertion section is mounted on the main part.
In order to keep fiber connector globality stronger, insertion section can be integrally formed with main part, certainly, in order to produce It is convenient, also insertion section can be mounted on main part.
Based on the above technical solution, the insertion section and the main part are cylindric, and the insertion section Diameter is less than the main part diameter, and the insertion section periphery is made to be formed for accepting the external structure connected with fiber connector Accepting area.
Since insertion section and main part are cylindric, so as to preferably coordinate with optical fiber connecting seat, and convenient pair It connects.
Based on the above technical solution,
The insertion section is hollow tubular construction；
The optical cable end is equipped with optical cable connector, and in the cavity, the optical cable connects for optical cable connector position Head is connected with the insertion section；
There is the optical cable connector adapter section for stretching into the insertion section, the adapter section to connect for connecting the optical cable Connector and the insertion section, and the adapter section is equipped with second seals structure, the second seals structure is described for being isolated Space in cavity and the insertion section.
After second seals structure, water can be prevented to be flowed into insertion section by the cavity of main part, also made Between main part and insertion section junction penetrate into water be blocked at pyrocondensation waterproof jacket, avoid water penetrate into insertion section in and Influence the optical fiber in insertion section.And then follow-up water can be reduced and flow to possibility at the inner fiber region of insertion section, it plays The effect of better seal waterproof.
Based on the above technical solution, it is anti-to be arranged with pyrocondensation for the described one end of optical cable connector far from the insertion section Water jacket, the pyrocondensation waterproof jacket extend to optical cable by the optical cable connector and stretch out the main part.
Pyrocondensation waterproof jacket is sealed for preventing water from being penetrated into from the tail end of optical cable connector, and with the first sealing structure, second Structure be collectively formed one it is whole for optical fiber by seal area.
Based on the above technical solution, the insertion section is hollow tubular construction；
The optical cable end is equipped with optical cable connector, and in the cavity, the optical cable connects for optical cable connector position Head is connected with the insertion section；
There is the optical cable connector adapter section for stretching into the insertion section, the adapter section to connect for connecting the optical cable Connector and the insertion section, the described one end of optical cable connector far from the insertion section are arranged with pyrocondensation waterproof jacket, the pyrocondensation Waterproof jacket extends to optical cable close to described fiber stub one end by the adapter section and stretches out the main part.
It is extended to described in optical cable and stretching close to described fiber stub one end by the adapter section due to stating pyrocondensation waterproof jacket Main part can prevent water to be flowed into insertion section by the cavity of main part, but also connecting between main part and insertion section The water that the place of connecing is penetrated into is blocked at pyrocondensation waterproof jacket, and water is avoided to penetrate into insertion section and influence the optical fiber in insertion section.May be used also To prevent water from being penetrated into from the tail end of optical cable connector.Simultaneously, it is not necessary to set second seals structure on adapter section and can be solved main body It seeps water the junction of portion and insertion section.
Based on the above technical solution, the insertion section is equipped with card slot.
Card slot plays the role of clamping locking for coordinating with steel ball when docking.
Based on the above technical solution, the tubular structure is connect for being inserted into the optical fiber being adapted to fiber connector The slot of seat.
The present invention also provides a kind of optical fiber connecting seats comprising pedestal, described pedestal one end are equipped with docking section, the docking Docking channel is equipped in portion, and the pedestal is additionally provided with the lock pin holding seat for accommodating fiber stub, the lock pin holding seat In the middle part of the pedestal, the lock pin holding seat stretches into the docking channel, and the lock pin holding seat and the docking section Slot is formed between inner wall.
Based on the above technical solution, the docking channel is divided into close to described by the end of the lock pin holding seat The first segment of pedestal and the separate pedestal second segment, and the length of the second segment is more than the length of the first segment.
Based on the above technical solution, the section of the slot is annular.
Based on the above technical solution, the slot is used to accommodate the optical fiber to match with the optical fiber connecting seat and connects The tubular structure of the insertion section of connector.
Based on the above technical solution, the width of the slot is connect with the optical fiber that the optical fiber connecting seat matches The thickness of the tubular structure of the insertion section of head matches.
The thickness to match so that after being inserted into good sealing performance can be provided.
Based on the above technical solution, the docking section is equipped with a receiving radially extended by docking section outer surface Slot, the container are connected with the docking channel, are equipped in the container and are used for what clamping was adapted to optical fiber connecting seat The card holding structure of fiber connector, and the position that the container is connected with the docking channel is not the slot location Domain.
Since the position that the container is connected with the docking channel is not the slot region, the first sealing Structure can prevent water from entering fiber stub region by container.
The present invention also provides a kind of joints comprising fiber connector and optical fiber connecting seat：
The fiber connector includes main part, and the main part is equipped with a cavity；It is mounted on the optical cable of the main part, And the optical fiber of the optical cable stretches into the cavity；Insertion section positioned at main part one end, the insertion section is far from the main part One end be equipped with fiber stub；Wherein, the insertion section end is additionally provided with the tubular structure around the fiber stub, the cylinder Shape structure is arranged with the fiber stub interval, and the tubular structure outer surface is enclosed equipped with the first sealing structure, and/or, institute The end face for stating tubular structure is equipped with the first sealing structure；
Optical fiber connecting seat includes pedestal, and described pedestal one end is equipped with docking section, and docking channel is equipped in the docking section, and The pedestal is additionally provided with the lock pin holding seat for accommodating fiber stub, and the lock pin holding seat is located in the middle part of the pedestal, institute It states lock pin holding seat and stretches into the docking channel, and slot is formed between the lock pin holding seat and the docking section inner wall.
Based on the above technical solution, when the fiber connector is inserted into the optical fiber connecting seat, the insertion Portion is inserted into the docking channel, and the tubular structure is inserted into the slot, the lock pin holding seat be inserted into the fiber stub and Between the tubular structure.
Based on the above technical solution,
The insertion section is hollow tubular construction；
The optical cable end is equipped with optical cable connector, and in the cavity, the optical cable connects for optical cable connector position Head is connected with the insertion section；
There is the optical cable connector adapter section for stretching into the insertion section, the adapter section to connect for connecting the optical cable Connector and the insertion section, and the adapter section is equipped with second seals structure；
When the fiber connector is inserted into the optical fiber connecting seat, first sealing structure seals the tubular structure Interior space, the second seals structure is for being isolated space in the cavity and the insertion section.
Compared with the existing technology, the present invention can be played more preferable by the way that sealing structure is being arranged close to the region of fiber stub Waterproof effect, and since the locational space of sealing is relatively narrow so that sealing effect is more preferable.
Description of the drawings
Fig. 1 is the structural schematic diagram of fiber connector main part in the present invention；
Fig. 2 is the structural schematic diagram of fiber connector main part and optical cable in the present invention；
Fig. 3 is the structural schematic diagram of optical fiber connecting seat in the present invention；
Fig. 4 is the structural schematic diagram of fiber connector and the docking of optical fiber connecting seat in the present invention.
In figure：1- main parts, 10- cavitys, 2- optical cables, 20- optical cable connectors, 21- adapter sections, 22- second seals structures, 23- pyrocondensation waterproof jackets, the insertion sections 3-, 30- fiber stubs, 31- tubular structures, the first sealing structures of 32-, 33- insertion spaces, The accepting areas 34-, 35- card slots, 4- pedestals, the docking sections 40-, 41- dock channel, 42- lock pin holding seats, 43- slots, 44- first Section, 45- second segments, 46- steel balls, 47- containers.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below Description only actually at least one exemplary embodiment is illustrative, is never used as to the application and its application or makes Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, shall fall in the protection scope of this application.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, attached each portion shown in the drawings The size divided not is to be drawn according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation A part for book.In shown here and discussion all examples, any occurrence should be construed as merely illustrative, and Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent figure In it need not be further discussed.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical, Vertically, the orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes System is merely for convenience of description the application and simplifies to describe, and in the absence of explanation to the contrary, these nouns of locality do not indicate that Signified device or element must have a particular orientation or with specific azimuth configuration and operations with hint, therefore cannot manage Solution is the limitation to the application protection domain；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and And respective explanations are made to the opposite description in space used herein above.
Furthermore, it is necessary to which explanation, limits parts, it is only for be convenient for using the words such as " first ", " second " Corresponding parts are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this Apply for the limitation of protection domain.
Shown in referring to Fig. 1 and Fig. 2, the embodiment of the present invention 1 provides a kind of fiber connector comprising main part 1, optical cable 2 With insertion section 3.
Wherein, it is equipped with a cavity 10 in main part 1, cavity 10 is mainly used to accommodate optical cable 2.Optical cable 2 is mounted on main part 1, and stretch into cavity 10.
One end of main part 1 is additionally provided with insertion section 3, and the one end of insertion section 3 far from main part 1 is equipped with fiber stub 30. 3 end of insertion section is additionally provided with the tubular structure 31 around fiber stub 30, and tubular structure 31 is mainly used for being inserted into be connect with optical fiber The slot 43 of the optical fiber connecting seat of head adaptation, tubular structure 31 is arranged with the interval of fiber stub 30, and 31 outer surface of tubular structure It encloses and is equipped with the first sealing structure 32, and/or, the end face of tubular structure 31 is equipped with the first sealing structure 32.First sealing structure 32 It can prevent water from entering the region of fiber stub by the linkage interface of fiber connector and optical fiber connecting seat, so as to avoid optical fiber The loss brought by water inlet, and the first sealing structure 32 is arranged on the tubular structure 31 nearest from fiber stub, have Effect reduces sealing structure and arrives the distance for needing waterproof construction, and reduction is in sealing structure to needing to form new seepage point between waterproof construction Probability, improve the waterproof effect in fiber stub 30 region.
Embodiment 2：
As an alternative embodiment, a kind of fiber connector of the present invention comprising main part 1, optical cable 2 and insertion Portion 3.
Wherein, it is equipped with a cavity 10 in main part 1, cavity 10 is mainly used to accommodate optical cable 2.Optical cable 2 is mounted on main part 1, and stretch into cavity 10.
One end of main part 1 is additionally provided with insertion section 3, and the one end of insertion section 3 far from main part 1 is equipped with fiber stub 30. 3 end of insertion section is additionally provided with the tubular structure 31 around fiber stub 30, and tubular structure 31 is mainly used for being inserted into be connect with optical fiber The slot 43 of the optical fiber connecting seat of head adaptation, tubular structure 31 and fiber stub 30 interval are arranged, and 31 end face of tubular structure and Outer surface is equipped with the first sealing structure 32 (end face is not shown).
The first sealing structure 32, which is arranged, in end face and outer surface simultaneously can provide more preferably sealing effect.
Embodiment 3：
As an optional embodiment, a kind of fiber connector of the present invention comprising main part 1, optical cable 2 and insertion Portion 3.
Wherein, it is equipped with a cavity 10 in main part 1, cavity 10 is mainly used to accommodate optical cable 2.Optical cable 2 is mounted on main part 1, and stretch into cavity 10.
One end of main part 1 is additionally provided with insertion section 3, and the one end of insertion section 3 far from main part 1 is equipped with fiber stub 30. 3 end of insertion section is additionally provided with the tubular structure 31 around fiber stub 30, and tubular structure 31 is mainly used for being inserted into be connect with optical fiber The slot 43 of the optical fiber connecting seat of head adaptation, tubular structure 31 is arranged with the interval of fiber stub 30, and 31 end face of tubular structure is set There is the first sealing structure 32 (not shown).
Although high in 32 opposite difficulty of processing of the first sealing structure of end face setting, it is inserted into optical fiber in fiber connector Connecting seat and it is locked after can closely be squeezed, good sealing effect is provided.
Embodiment 4：
As a preferable optional mode, the present embodiment is with embodiment 1 the difference is that the first sealing structure 32 is one Sealing ring or multiple spaced sealing rings.It is sealed using sealing ring, sealing effect is good, at low cost.
Embodiment 5：
As a preferable optional mode, the present embodiment and embodiment 1 the difference is that：In order to allow fiber connector with The better matching of optical fiber connecting seat connects, and card slot 35 is equipped on insertion section 3.Card slot 35 when docking with steel ball 46 for matching It closes, plays the role of clamping locking.
Embodiment 6：
As a preferable optional mode, the present embodiment and embodiment 1 the difference is that：Tubular structure 31 is inserted with optical fiber An insertion space 33 is formed between core 30, and the position of the first sealing structure 32 is configured in the position for making the first sealing structure 32 Insertion space 33 is passed through in the face vertical with 2 place straight line of optical cable of definition.That is, the first sealing structure 32 is to be located at insertion space 33 Outer region, and insertion space 33 can be inserted into after docking by lock pin holding seat 42, to support tubular structure 31, to carry For more preferably sealing effect.Also, since the spatial volume of storage tubular structure 31 is smaller, it can also improve the first sealing structure 32 Sealing effect.
The shape of insertion space 33 can be arranged as required to, in order to play the role of better seal, in the present embodiment Insertion space 33 is annular.
Embodiment 7：
As a preferable optional mode, in order to reduce weight, material is reduced, and provide and lead to for what optical fiber passed through Road, the present embodiment and embodiment 1 the difference is that：Insertion section 3 is hollow tubular construction.2 end of optical cable is connected equipped with optical cable First 20, optical cable connector 20 is located in cavity 10, and optical cable connector 20 is connected with insertion section 3.Optical cable connector 20, which has, to be stretched into The adapter section 21 of insertion section 3, adapter section 21 is for connecting optical cable connector 20 and insertion section 3, and adapter section 21 is equipped with second Sealing structure 22, second seals structure 22 is for being isolated space in cavity 10 and insertion section 3.Provided with second seals structure 22 Afterwards, water can be prevented to be flowed into insertion section 3 by cavity 10, and then follow-up water can be reduced and flowed at fiber stub 30 Possibility plays the role of better seal waterproof.But also from main part 1 and being inserted into the water that junction is penetrated between 3 It is blocked at second seals structure 22, water is avoided to penetrate into insertion section 3 and influence the optical fiber in insertion section 3.Preferably, second Sealing structure 22 is sealing ring.
Further, the one end of optical cable connector 20 far from the insertion section 3 is arranged with pyrocondensation waterproof jacket 23, the pyrocondensation Waterproof jacket 23 extends to optical cable 2 by the optical cable connector 20 and stretches out the main part 1.Pyrocondensation waterproof jacket 23 is for preventing water It is penetrated into from the tail end of optical cable connector, and it is whole for light with the first sealing structure 32, second seals structure 22 to be collectively formed one Fibre by seal area.
In addition, in order to keep fiber connector globality stronger, insertion section 3 can be integrally formed with main part 1, certainly, In order to convenient for production, also insertion section 3 can be mounted on main part 1.
Embodiment 8：
As an optional embodiment.The present embodiment and embodiment 1 the difference is that：Insertion section 3 is hollow tubular Structure.2 end of optical cable is equipped with optical cable connector 20, and optical cable connector 20 is located in cavity 10, optical cable connector 20 and insertion section 3 It is connected.Optical cable connector 20 has the adapter section 21 for stretching into insertion section 3, and adapter section 21 is for connecting optical cable connector 20 and being inserted into Portion 3, the one end of optical cable connector 20 far from insertion section 3 are arranged with pyrocondensation waterproof jacket 23, and pyrocondensation waterproof jacket 23 is by the adapter section It extends to optical cable 2 close to 30 one end of the fiber stub and stretches out the main part 1.
Due to stating pyrocondensation waterproof jacket 23 optical cable 2 is extended to close to 30 one end of the fiber stub by the adapter section 21 and stretched Go out the main part 1, water can be prevented to be flowed into insertion section 3 by the cavity of main part 1, but also from main part 1 and inserting Enter the water that junction is penetrated between portion 3 to be blocked at pyrocondensation waterproof jacket 23, water is avoided to penetrate into insertion section 3 and influence insertion section Optical fiber in 3.Water is also prevented to penetrate into from the tail end of optical cable connector.Simultaneously, it is not necessary to the second sealing is set on adapter section 21 Structure 22 can also solve main part 1 and the junction of insertion section 3 is seeped water.
Embodiment 9：
As a preferable optional mode, in order to preferably coordinate with optical fiber connecting seat, and facilitate docking, is inserted into Portion 3 and main part 1 are cylindric, and 3 diameter of insertion section is less than 1 diameter of main part, and the periphery of insertion section 3 is made to be formed for accepting The accepting area 34 of the external structure connected with fiber connector.Since 3 diameter of insertion section is small, and at accepting area 34 and optical fiber Connector body docks, and can effectively reduce whole diameter, effectively improve the layout density of joint.
Shown in Figure 3, the present invention also provides a kind of optical fiber connecting seats comprising pedestal 4,4 one end of pedestal are equipped with docking Portion 40, docking section 40 is interior to be equipped with docking channel 41, and pedestal 4 is additionally provided with the lock pin holding seat 42 for accommodating fiber stub 30, Lock pin holding seat 42 is located at 4 middle part of pedestal, and lock pin holding seat 42 stretches into docking channel 41, and lock pin holding seat 42 and docking section 40 Slot 43 is formed between inner wall.Since slot 43 is located at docking channel 41, and its space is limited, after tubular structure 31 is inserted into its The region that need to be sealed is little, and can improve the close of the first sealing structure 32 on tubular structure 31 in narrow space interior sealing Type, to provide effective sealing.And slot 43 is close from lock pin holding seat 42, even if optical fiber connecting base structure has occurred Perhaps structure design changes, even if structure change brings new seepage point, without readjusting sealing structure and sealing station, The adjustment of mold when subsequent product being facilitated to optimize, and then play the role of reducing cost.
Preferably, the end of the lock pin holding seat 42 in the present invention will be docked channel 41 and be divided for close to the first segment of pedestal 4 44 and far from pedestal 4 second segment 45, and the length of second segment 45 is more than the length of first segment 44.45 long enough of second segment can provide Effective insertion space to improve the stability of connection, and provides the position of other component in 45 peripheral region of second segment.
Preferably, the tubular of the insertion section 3 for the fiber connector that the width of slot 43 matches with the optical fiber connecting seat The thickness of structure 31 matches.The thickness to match so that after being inserted into good sealing performance can be provided.
Preferably, docking section 40 be equipped with a container 47 radially extended by 40 outer surface of docking section, container 47 with Docking channel 41 is connected, and the clamping knot for the fiber connector being adapted to optical fiber connecting seat for clamping is equipped in container 47 Structure, and the position that container 47 is connected with the docking channel 41 is not 43 region of the slot.Due to container 47 The position being connected with docking channel 41 is not 43 region of the slot, to allow the first sealing structure 32 to prevent water Enter 30 region of fiber stub by container 47, meanwhile, card holding structure falls into docking channel 41,47 bottom of container in order to prevent Portion is equipped with the shelves stop of arc.
Specifically, slot 43 is mainly used for accommodating the cylinder of the insertion section 3 of the fiber connector to match with optical fiber connecting seat The section of shape structure 31, the slot 43 in the present invention is annular, be additionally provided on slot 43 with 35 matched steel ball 46 of card slot, In the present embodiment, steel ball 46 is card holding structure, coordinates with card slot 35 when being used to dock, plays and be connected to fiber connector Effect on optical fiber connecting seat.After fiber connector is docked with optical fiber connecting seat, steel ball 46 will be located at the first sealing and tie The upper right side of structure 32.
Since 31 outer surface of tubular structure of fiber connector is enclosed equipped with the first sealing structure 32, and/or, tubular structure 31 End face be equipped with the first sealing structure 32.And steel ball 46 is located at the upper right side of the first sealing structure 32, that is, passes water through steel ball 46 Peripheral region penetrates into, but under the action of the first sealing structure 32, it will water is prevented further to continue towards 46 left direction of steel ball Flowing, that is to say, that the first sealing structure 32 can prevent water from entering light by the linkage interface of fiber connector and optical fiber connecting seat The region of fine lock pin 30, the loss brought so as to avoid optical fiber water inlet.Further, since 43 space of slot is small, sealing surface It is small, leakproofness can be further increased.
The present invention also provides a kind of joints comprising fiber connector and optical fiber connecting seat.
In an alternative embodiment, joint includes fiber connector and optical fiber connecting seat.Wherein, optical fiber Connector includes main part 1, and main part 1 is equipped with a cavity 10.It is mounted on the optical cable 2 of main part 1, and the optical fiber of optical cable 2 stretches into Cavity 10.Insertion section 3 positioned at 1 one end of main part, the one end of insertion section 3 far from main part 1 are equipped with fiber stub 30.Wherein, 3 end of insertion section is additionally provided with the tubular structure 31 around fiber stub 30, and tubular structure 31 is arranged with the interval of fiber stub 30, and It encloses equipped with the first sealing structure 32 31 outer surface of tubular structure.And/or the end face of tubular structure 31 is equipped with the first sealing structure 32。
Optical fiber connecting seat includes pedestal 4, and 4 one end of pedestal is equipped with docking section 40, and docking channel 41 is equipped in docking section 40, and Pedestal 4 is additionally provided with the lock pin holding seat 42 for accommodating fiber stub 30, and lock pin holding seat 42 is located at 4 middle part of pedestal, and lock pin is received Holder 42 stretches into docking channel 41, and slot 43 is formed between 40 inner wall of lock pin holding seat 42 and docking section.
In an alternative embodiment, joint includes fiber connector and optical fiber connecting seat.Wherein, optical fiber Connector includes main part 1, and main part 1 is equipped with a cavity 10.It is mounted on the optical cable 2 of main part 1, and the optical fiber of optical cable 2 stretches into Cavity 10.Insertion section 3 positioned at 1 one end of main part, the one end of insertion section 3 far from main part 1 are equipped with fiber stub 30.Wherein, 3 end of insertion section is additionally provided with the tubular structure 31 around fiber stub 30, and tubular structure 31 is arranged with the interval of fiber stub 30, and 31 outer surface of tubular structure is enclosed is equipped with the first sealing structure 32 with end face.
Optical fiber connecting seat includes pedestal 4, and 4 one end of pedestal is equipped with docking section 40, and docking channel 41 is equipped in docking section 40, and Pedestal 4 is additionally provided with the lock pin holding seat 42 for accommodating fiber stub 30, and lock pin holding seat 42 is located at 4 middle part of pedestal, and lock pin is received Holder 42 stretches into docking channel 41, and slot 43 is formed between 40 inner wall of lock pin holding seat 42 and docking section.
In an alternative embodiment, joint includes fiber connector and optical fiber connecting seat.Wherein, optical fiber Connector includes main part 1, and main part 1 is equipped with a cavity 10.It is mounted on the optical cable 2 of main part 1, and the optical fiber of optical cable 2 stretches into Cavity 10.Insertion section 3 positioned at 1 one end of main part, the one end of insertion section 3 far from main part 1 are equipped with fiber stub 30.Wherein, 3 end of insertion section is additionally provided with the tubular structure 31 around fiber stub 30, and tubular structure 31 is arranged with the interval of fiber stub 30, and 31 end face of tubular structure is equipped with the first sealing structure 32.
Optical fiber connecting seat includes pedestal 4, and 4 one end of pedestal is equipped with docking section 40, and docking channel 41 is equipped in docking section 40, and Pedestal 4 is additionally provided with the lock pin holding seat 42 for accommodating fiber stub 30, and lock pin holding seat 42 is located at 4 middle part of pedestal, and lock pin is received Holder 42 stretches into docking channel 41, and slot 43 is formed between 40 inner wall of lock pin holding seat 42 and docking section.
Shown in Figure 4, during specifically used, when fiber connector is inserted into optical fiber connecting seat, insertion section 3 is inserted Enter to dock channel 41, tubular structure 31 is inserted into slot 43, and lock pin holding seat 42 is inserted between fiber stub 30 and tubular structure 31.
In addition, in order to reduce weight, material is reduced, insertion section 3 is hollow tubular construction.2 end of optical cable is equipped with optical cable Connector 20, optical cable connector 20 are located in cavity 10, and optical cable connector 20 is connected with insertion section 3.Optical cable connector 20 has The adapter section 21 of insertion section 3 is stretched into, adapter section 21 is for connecting optical cable connector 20 and insertion section 3, and adapter section 21 is equipped with Second seals structure 22.When fiber connector is inserted into optical fiber connecting seat, the first sealing structure 32 seals empty in tubular structure 31 Between, second seals structure 22 is for being isolated space in cavity 10 and insertion section 3.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention Within the scope of.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.

Claims (14)

1. a kind of fiber connector, which is characterized in that it includes：
Main part (1), the main part (1) are equipped with a cavity (10)；
It is mounted on the optical cable (2) of the main part (1), and the optical cable (2) stretches into the cavity (10)；
Insertion section (3) positioned at main part (1) one end, the one end of the insertion section (3) far from the main part (1) are equipped with optical fiber Lock pin (30)；Wherein,
Insertion section (3) end is additionally provided with the tubular structure (31) around the fiber stub (30), the tubular structure (31) it is arranged with the fiber stub (30) interval, and the tubular structure (31) outer surface is enclosed equipped with the first sealing structure (32)；And/or
The end face of the tubular structure (31) is equipped with the first sealing structure (32).
2. fiber connector as described in claim 1, it is characterised in that：The tubular structure (31) and the fiber stub (30) insertion space (33) is formed between, and the position of first sealing structure (32) is configured in makes the first sealing structure (32) insertion space (33) is passed through in the face vertical with straight line where optical cable (2) that position defines.
3. fiber connector as described in claim 1, it is characterised in that：First sealing structure (32) be a sealing ring or Multiple spaced sealing rings.
4. fiber connector as described in claim 1, it is characterised in that：
The insertion section (3) is integrally formed with the main part (1)；Alternatively,
The insertion section (3) is mounted on the main part (1).
5. fiber connector as described in claim 1, it is characterised in that：The insertion section (3) and the main part (1) are It is cylindric, and the insertion section (3) diameter is less than the main part (1) diameter, and the insertion section (3) periphery is made to be formed for holding Connect the accepting area (34) of the external structure connected with fiber connector.
6. fiber connector as described in claim 1, it is characterised in that：
The insertion section (3) is hollow tubular construction；
Optical cable (2) end is equipped with optical cable connector (20), and the optical cable connector (20) is located in the cavity (10), institute Optical cable connector (20) is stated with the insertion section (3) to be connected；
The optical cable connector (20) has the adapter section (21) for stretching into the insertion section (3), and the adapter section (21) is for connecting The optical cable connector (20) and the insertion section (3) are connect, and the adapter section (21) is equipped with second seals structure (22), institute Second seals structure (22) is stated for the cavity (10) and the insertion section (3) interior space to be isolated.
7. fiber connector as claimed in claim 6, it is characterised in that：The optical cable connector (20) is far from the insertion section (3) one end is arranged with pyrocondensation waterproof jacket (23), and the pyrocondensation waterproof jacket (23) extends to light by the optical cable connector (20) Cable (2) simultaneously stretches out the main part (1).
8. fiber connector as described in claim 1, it is characterised in that：
The insertion section (3) is hollow tubular construction；
Optical cable (2) end is equipped with optical cable connector (20), and the optical cable connector (20) is located in the cavity (10), institute Optical cable connector (20) is stated with the insertion section (3) to be connected；
The optical cable connector (20) has the adapter section (21) for stretching into the insertion section (3), and the adapter section (21) is for connecting Connect the optical cable connector (20) and the insertion section (3), the one end of the optical cable connector (20) far from the insertion section (3) It is arranged with pyrocondensation waterproof jacket (23), the pyrocondensation waterproof jacket (23) is by the adapter section (21) close to the fiber stub (30) one End extends to optical cable (2) and stretches out the main part (1).
9. fiber connector as described in claim 1, it is characterised in that：The tubular structure (31) connects for being inserted into optical fiber The slot (43) of the optical fiber connecting seat of connection adapters.
10. a kind of optical fiber connecting seat, which is characterized in that it includes pedestal (4), and the pedestal (4) at least one end is equipped with docking section (40), docking channel (41) is equipped in the docking section (40), and the pedestal (4) is additionally provided with for accommodating fiber stub (30) Lock pin holding seat (42), the lock pin holding seat (42) is located in the middle part of the pedestal (4), and the lock pin holding seat (42) is stretched into The docking channel (41), and slot (43) is formed between the lock pin holding seat (42) and the docking section (40) inner wall.
11. optical fiber connecting seat as claimed in claim 10, it is characterised in that：The slot (43) is for accommodating and the optical fiber The tubular structure (31) of the insertion section (3) for the fiber connector that connecting seat matches.
12. optical fiber connecting seat as claimed in claim 10, it is characterised in that：The docking section (40) is equipped with one by docking section (40) container (47) that outer surface radially extends, the container (47) are connected with the docking channel (41), the receipts The card holding structure for the fiber connector being adapted to optical fiber connecting seat for clamping, and the container (47) are equipped in tank (47) The position being connected with docking channel (41) is not the slot (43) region.
13. a kind of joint comprising fiber connector and optical fiber connecting seat, it is characterised in that：
The fiber connector includes main part (1), and the main part (1) is equipped with a cavity (10)；It is mounted on the main part (1) optical cable (2), and the optical fiber of the optical cable (2) stretches into the cavity (10)；Insertion section positioned at main part (1) one end (3), the one end of the insertion section (3) far from the main part (1) is equipped with fiber stub (30)；Wherein, insertion section (3) end End is additionally provided with the tubular structure (31) around the fiber stub (30), the tubular structure (31) and the fiber stub (30) Interval setting, and the tubular structure (31) outer surface is enclosed equipped with the first sealing structure (32), and/or,
The end face of the tubular structure (31) is equipped with the first sealing structure (32)；
The optical fiber connecting seat includes pedestal (4), and described pedestal (4) one end is equipped with docking section (40), in the docking section (40) Equipped with docking channel (41), and the pedestal (4) is additionally provided with the lock pin holding seat (42) for accommodating fiber stub (30), described Lock pin holding seat (42) is located in the middle part of the pedestal (4), and the lock pin holding seat (42) stretches into the docking channel (41), and institute It states and forms slot (43) between lock pin holding seat (42) and the docking section (40) inner wall.
14. joint as claimed in claim 13, it is characterised in that：
When the fiber connector is inserted into the optical fiber connecting seat, the insertion section (3) is inserted into the docking channel (41), institute It states tubular structure (31) and is inserted into the slot (43), the lock pin holding seat (42) is inserted into the fiber stub (30) and the cylinder Between shape structure (31).
CN201810277458.XA 2017-11-14 2018-03-30 Optical fiber connector, optical fiber connecting seat and optical fiber connecting assembly Active CN108490551B (en)

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CN201820463076.1U Active CN207965231U (en) 2017-11-14 2018-03-30 A kind of fiber connector, fiber connector socket and joint
CN201810277458.XA Active CN108490551B (en) 2017-11-14 2018-03-30 Optical fiber connector, optical fiber connecting seat and optical fiber connecting assembly
CN201810277185.9A Active CN108241192B (en) 2017-11-14 2018-03-30 Optical fiber connector and optical fiber connection assembly
CN201810277056.XA Pending CN108254835A (en) 2017-11-14 2018-03-30 A kind of joint of connector, adapter and fast insert-pull
CN201810277247.6A Active CN108318975B (en) 2017-11-14 2018-03-30 Connector, adapter and quick-plug optical fiber connection assembly
CN201820444557.8U Active CN207965228U (en) 2017-11-14 2018-03-30 A kind of joint of connector, adapter and fast insert-pull
CN201810277225.XA Active CN108508541B (en) 2017-11-14 2018-03-30 Optical fiber connector, optical fiber connecting seat and optical fiber connecting assembly

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CN201810277056.XA Pending CN108254835A (en) 2017-11-14 2018-03-30 A kind of joint of connector, adapter and fast insert-pull
CN201810277247.6A Active CN108318975B (en) 2017-11-14 2018-03-30 Connector, adapter and quick-plug optical fiber connection assembly
CN201820444557.8U Active CN207965228U (en) 2017-11-14 2018-03-30 A kind of joint of connector, adapter and fast insert-pull
CN201810277225.XA Active CN108508541B (en) 2017-11-14 2018-03-30 Optical fiber connector, optical fiber connecting seat and optical fiber connecting assembly

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MX2020004286A (en) 2020-07-29
CN108241192A (en) 2018-07-03
BR112020008569A2 (en) 2020-10-20
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CL2020001130A1 (en) 2020-08-14
CN108490551B (en) 2020-12-01

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