CN110989091B - Optical cable assembly and plug assembly thereof - Google Patents
Optical cable assembly and plug assembly thereof Download PDFInfo
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- CN110989091B CN110989091B CN201911167099.3A CN201911167099A CN110989091B CN 110989091 B CN110989091 B CN 110989091B CN 201911167099 A CN201911167099 A CN 201911167099A CN 110989091 B CN110989091 B CN 110989091B
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- ferrule
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- 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
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Abstract
The invention relates to an optical cable assembly and a plug assembly thereof, which can solve the problems of troublesome processing and assembly and high cost of an optical fiber connector in the prior art. The plug assembly includes: plug housing, has the lock pin module installation cavity, and the lock pin module includes: at least two ferrule assemblies; the ferrule mounting shell is provided with one or more than two fixing bins for fixing the ferrule assembly, the fixing bins extend along the front and back direction and are provided with lateral openings, the lateral openings are used for dismounting the ferrule assembly, and after the ferrule assembly is arranged in the fixing bins, the springs compress and provide elastic force for the contact pins towards the plugging side; and the module shell is formed by injection molding and is used for fixing the ferrule installation shell and is provided with a positioning hole for positioning the sleeve in the ferrule assembly or a positioning hole for positioning the contact pin in the ferrule assembly.
Description
Technical Field
The invention relates to an optical cable assembly and a plug assembly thereof.
Background
The connector of using in outdoor environment can receive the influence of factors such as vibration, impact, temperature variation and adverse circumstances, for guaranteeing communication connection's stability, need correspond performances such as sealing, stability, multichannel that improve the connector. In order to adapt to outdoor severe environment in the prior art, a shell of the connector adopts a metal shell which is connected by threads so as to achieve the purposes of water resistance, dust resistance and rust resistance.
Fig. 1 shows a structure of an optical fiber plug assembly in the prior art, the plug assembly mainly includes two parts, namely a plug-in portion 10 and a fixing portion 20, the plug-in portion 10 is mainly matched with a socket assembly in a plug-in manner, and the fixing portion 20 is mainly used for fixing an optical fiber. Specifically, as shown in fig. 2, the plug section 10 includes a plug housing 11 connected to the receptacle assembly, and the plug housing 11 is made of a metal material and has a good mechanical strength to withstand a severe outdoor environment. Two through holes 111 are machined in the plug housing 11 in a machining mode, a ferrule assembly is installed in the two through holes 111, the ferrule assembly comprises a sleeve A12, a sleeve B13 and a contact pin 14, the contact pin 14 is sleeved in the sleeve A12, the sleeve A12 is nested in the sleeve B13, and optical fibers are fed into and fixed in a channel of the contact pin 14 during wiring. A spring 15 is sleeved on the outer peripheral surface of the pin 14 exposed out of the sleeve B13, and after the plug assembly is plugged with the socket assembly, the spring 15 is compressed to provide elastic force to the pin towards the plugging side.
Most of the outdoor connectors in the prior art adopt a structure similar to that in fig. 1 and fig. 2, and a metal shell is used to resist the influence of the external environment on the optical fiber therein, but the structure of this kind has some problems:
1) because the contact pin needs to stretch out from the plug shell, a plurality of through holes for the sleeve and the contact pin to stretch out need to be processed on the plug shell, and the sleeve and the contact pin are positioned by the through holes. The mode that prior art adopted to carry out machine tooling to plug housing blank more obtains required through-hole, and processing is comparatively troublesome, and is inefficient, and is with high costs, and wherein the through-hole uniformity that has different parts in batch production is poor moreover, and part dimensional stability is poor, the unstable problem of product overall quality, and the position of fixed contact pin can't be guaranteed.
2) The through holes in the plug shell need to support the sleeve and the contact pins, so that enough space is needed among the through holes in the plug shell, the through holes have enough wall thickness to support the sleeve and the contact pins, and when a multi-core communication structure is adopted, the plug shell with limited area can be restricted by the area, and a through hole group suitable for high-density layout cannot be processed.
Disclosure of Invention
The invention aims to provide a plug assembly which can solve the problems of troublesome processing and assembly and high cost of an optical fiber connector in the prior art;
another object of the present invention is to provide an optical cable assembly using the plug assembly, which has the advantages of low processing difficulty, high stability and good quality.
In order to achieve the purpose, the plug assembly adopts the following technical scheme:
a plug assembly, comprising:
a plug housing having a ferrule module mounting cavity;
a ferrule module, comprising:
at least two ferrule assemblies;
the ferrule mounting shell is provided with one or more than two fixing bins for fixing the ferrule assembly, the fixing bins extend along the front and back direction and are provided with lateral openings, the lateral openings are used for dismounting the ferrule assembly, and after the ferrule assembly is arranged in the fixing bins, the springs compress and provide elastic force for the contact pins towards the plugging side;
and the module shell is formed by injection molding and is used for fixing the ferrule installation shell and is provided with a positioning hole for positioning the sleeve in the ferrule assembly or a positioning hole for positioning the contact pin in the ferrule assembly.
The beneficial effects are that: in the fixed storehouse of packing into through the side direction opening with the lock pin subassembly, the spring in the lock pin subassembly receives the restraint in fixed storehouse and the compression makes the contact pin can push up tightly towards the grafting side, guarantees the stability of connecting. Meanwhile, the ferrule installation shell and the ferrule assembly are installed in the module shell, the sleeve or the contact pin in the ferrule assembly is positioned by utilizing the positioning hole in the module shell, the connection accuracy is ensured, and the plug shell plays a role in resisting external environment interference and protecting the ferrule. The module casing wherein is the injection moulding piece, processes out module casing of batch volume through unified mould, and each module casing is used for not having the size deviation to the locating hole that contact pin or sleeve pipe go on fixing a position, when guaranteeing the whole quality of product, and processing is simple, and is efficient, can avoid both utilizing plug casing to protect among the prior art, and the problem that processing that utilizes plug casing to fix a position again and bring is troublesome, the quality is poor.
Further, the insertion core installation shell is formed in an injection molding mode.
The beneficial effects are that: the ferrule mounting shell is also formed by injection molding, the machining characteristics of the ferrule mounting shell are also utilized to guarantee the dimensional error by the injection molding technology, the processing steps are simplified, the dimensional consistency of the ferrule mounting shell can be guaranteed, the ferrule mounting shell has small self error, good fitting degree can be guaranteed when the ferrule mounting shell is matched with a module shell, the assembly error of an intermediate link is reduced, and the accuracy of a plug assembly in butt joint with an adaptive connector is guaranteed.
Furthermore, the fixed storehouse that sets up on the lock pin installation shell has two, and the side direction opening in fixed storehouse is carried on the back mutually.
The beneficial effects are that: the two fixing bins are arranged on the ferrule mounting shell, so that the two ferrule assemblies can be fixed at the same time, the plug assembly can be suitable for the working condition of multi-core communication, and the applicability of the plug assembly is improved; meanwhile, the lateral openings of the fixed bins are back to back, an operator has enough operating space to install the ferrule assembly in the corresponding fixed bin, the problem that the fixed bin is difficult to assemble due to the fact that the arrangement positions of the fixed bin are too concentrated is avoided, operation steps are simplified, and efficiency is improved.
Furthermore, a clamping groove which is arranged on the bin wall of the fixed bin and is close to the plugging side and used for laterally loading the contact pins is of a closing structure, and the contact pins are laterally loaded into the clamping groove in a forced loading mode.
The beneficial effects are that: set up binding off structure on the bulkhead, utilize binding off structure to block the contact pin, can prevent that the contact pin from deviating from the side direction accident, guaranteed the stability of plug subassembly during operation.
Furthermore, the edge of the clamping groove is provided with salient points which enable the edge of the clamping groove to shrink so as to form a closing-in structure, and the protruding directions of the two salient points are opposite.
The beneficial effects are that: arrange the bump with protrusion opposite direction's mode at draw-in groove edge, when dismouting lock pin subassembly, two bumps are also opposite to the resistance direction of corresponding lock pin subassembly to make the resistance offset each other, operating personnel can pack into or take out from fixed storehouse with the lock pin subassembly more easily.
Furthermore, the module shell is of a split structure, and the inserting core installation shell is fixed in the module shell in a buckling mode.
The beneficial effects are that: adopt the module casing of split type, can make operating personnel have more operating space and fix the lock pin installation shell on the module casing, be convenient for assemble.
Furthermore, the module shell is symmetrically divided into two lobes, the two lobe bodies are respectively provided with a semicircular groove, and the two semicircular grooves form the positioning hole after being buckled.
The beneficial effects are that: the semi-circular groove is used for enclosing to form the positioning hole, the structure is simple, the production difficulty is reduced, and the cost is reduced.
Furthermore, one of the ferrule installation shell and the module shell is provided with a key, the other ferrule installation shell is provided with a key groove, and the ferrule installation shell is fixed on the module shell through the key connection.
The beneficial effects are that: the fixing is realized by utilizing the key connection, so that the design difficulty of the mold is reduced and the production cost is also reduced in the processing process of injection molding.
Furthermore, the inserting core assembly comprises a cable leather fixing sleeve, and a limiting structure for limiting the cable leather fixing sleeve to move back to the inserting side is arranged on the module shell.
The beneficial effects are that: the cable sheath fixing sleeve is arranged to fix the cable sheath on the outer layer of the optical fiber, so that the optical fiber is protected by the cable sheath in the wire making process, the optical fiber is prevented from being injured, and the product quality and reliability are improved; in addition, the limiting structure is arranged on the module shell, so that the phenomenon that the cable sheath is driven by the cable sheath fixing sleeve to retreat can be avoided, the problems that optical fibers are pulled to be accidentally broken and deflected due to the retreat of the cable sheath are avoided, and the product quality and the reliability of the plug assembly are guaranteed.
In order to achieve the purpose, the optical cable assembly adopts the following technical scheme:
a cable assembly including a cable and a plug assembly connected to an end of the cable;
a plug assembly, comprising:
a plug housing having a ferrule module mounting cavity;
a ferrule module, comprising:
at least two ferrule assemblies;
the ferrule mounting shell is provided with one or more than two fixing bins for fixing the ferrule assembly, the fixing bins extend along the front and back direction and are provided with lateral openings, the lateral openings are used for dismounting the ferrule assembly, and after the ferrule assembly is arranged in the fixing bins, the springs compress and provide elastic force for the contact pins towards the plugging side;
and the module shell is formed by injection molding and is used for fixing the ferrule installation shell and is provided with a positioning hole for positioning the sleeve in the ferrule assembly or a positioning hole for positioning the contact pin in the ferrule assembly.
The beneficial effects are that: in the fixed storehouse of packing into through the side direction opening with the lock pin subassembly, the spring in the lock pin subassembly receives the restraint in fixed storehouse and the compression makes the contact pin can push up tightly towards the grafting side, guarantees the stability of connecting. Meanwhile, the ferrule installation shell and the ferrule assembly are installed in the module shell, the sleeve or the contact pin in the ferrule assembly is positioned by utilizing the positioning hole in the module shell, the connection accuracy is ensured, and the plug shell plays a role in resisting external environment interference and protecting the ferrule. The module casing wherein is the injection moulding piece, processes out module casing of batch volume through unified mould, and each module casing is used for not having the size deviation to the locating hole that contact pin or sleeve pipe go on fixing a position, when guaranteeing the whole quality of product, and processing is simple, and is efficient, can avoid both utilizing plug casing to protect among the prior art, and the problem that processing that utilizes plug casing to fix a position again and bring is troublesome, the quality is poor. The optical cable component utilizes the plug component with excellent performance, can ensure the reliability of a product in use, can reduce the production cost and improve the economic benefit.
Further, the insertion core installation shell is formed in an injection molding mode.
The beneficial effects are that: the ferrule mounting shell is also formed by injection molding, the machining characteristics of the ferrule mounting shell are also utilized to guarantee the dimensional error by the injection molding technology, the processing steps are simplified, the dimensional consistency of the ferrule mounting shell can be guaranteed, the ferrule mounting shell has small self error, good fitting degree can be guaranteed when the ferrule mounting shell is matched with a module shell, the assembly error of an intermediate link is reduced, and the accuracy of a plug assembly in butt joint with an adaptive connector is guaranteed.
Furthermore, the fixed storehouse that sets up on the lock pin installation shell has two, and the side direction opening in fixed storehouse is carried on the back mutually.
The beneficial effects are that: the two fixing bins are arranged on the ferrule mounting shell, so that the two ferrule assemblies can be fixed at the same time, the plug assembly can be suitable for the working condition of multi-core communication, and the applicability of the plug assembly is improved; meanwhile, the lateral openings of the fixed bins are back to back, an operator has enough operating space to install the ferrule assembly in the corresponding fixed bin, the problem that the fixed bin is difficult to assemble due to the fact that the arrangement positions of the fixed bin are too concentrated is avoided, operation steps are simplified, and efficiency is improved.
Furthermore, a clamping groove which is arranged on the bin wall of the fixed bin and is close to the plugging side and used for laterally loading the contact pins is of a closing structure, and the contact pins are laterally loaded into the clamping groove in a forced loading mode.
The beneficial effects are that: set up binding off structure on the bulkhead, utilize binding off structure to block the contact pin, can prevent that the contact pin from deviating from the side direction accident, guaranteed the stability of plug subassembly during operation.
Furthermore, the edge of the clamping groove is provided with salient points which enable the edge of the clamping groove to shrink so as to form a closing-in structure, and the protruding directions of the two salient points are opposite.
The beneficial effects are that: arrange the bump with protrusion opposite direction's mode at draw-in groove edge, when dismouting lock pin subassembly, two bumps are also opposite to the resistance direction of corresponding lock pin subassembly to make the resistance offset each other, operating personnel can pack into or take out from fixed storehouse with the lock pin subassembly more easily.
Furthermore, the module shell is of a split structure, and the inserting core installation shell is fixed in the module shell in a buckling mode.
The beneficial effects are that: adopt the module casing of split type, can make operating personnel have more operating space and fix the lock pin installation shell on the module casing, be convenient for assemble.
Furthermore, the module shell is symmetrically divided into two lobes, the two lobe bodies are respectively provided with a semicircular groove, and the two semicircular grooves form the positioning hole after being buckled.
The beneficial effects are that: the semi-circular groove is used for enclosing to form the positioning hole, the structure is simple, the production difficulty is reduced, and the cost is reduced.
Furthermore, one of the ferrule installation shell and the module shell is provided with a key, the other ferrule installation shell is provided with a key groove, and the ferrule installation shell is fixed on the module shell through the key connection.
The beneficial effects are that: the fixing is realized by utilizing the key connection, so that the design difficulty of the mold is reduced and the production cost is also reduced in the processing process of injection molding.
Furthermore, the inserting core assembly comprises a cable leather fixing sleeve, and a limiting structure for limiting the cable leather fixing sleeve to move back to the inserting side is arranged on the module shell.
The beneficial effects are that: the cable sheath fixing sleeve is arranged to fix the cable sheath on the outer layer of the optical fiber, so that the optical fiber is protected by the cable sheath in the wire making process, the optical fiber is prevented from being injured, and the product quality and reliability are improved; in addition, the limiting structure is arranged on the module shell, so that the phenomenon that the cable sheath is driven by the cable sheath fixing sleeve to retreat can be avoided, the problems that optical fibers are pulled to be accidentally broken and deflected due to the retreat of the cable sheath are avoided, and the product quality and the reliability of the plug assembly are guaranteed.
Drawings
FIG. 1 is a schematic structural view of a prior art plug assembly;
FIG. 2 is a schematic view of a plug-in portion of a prior art plug assembly;
FIG. 3 is a schematic structural view of a plug assembly of embodiment 1 of the cable assembly of the present invention;
FIG. 4 is a perspective, breakout view of a plug assembly of embodiment 1 of a fiber optic cable assembly according to the present invention;
in the figure:
10-a plug-in section; 11-a plug housing; 111-a via; 12-sleeve a; 13-sleeve B; 14-pin insertion; 15-a spring;
20-a stationary portion; 30 a plug-in portion; 40-a stationary portion; 50-a plug housing; 60-a ferrule module;
61-first split; 62-second split; 621-a cavity; 622-key; 623-a semicircular groove; 624-casing stop; 625-a groove; 63-ferrule mounting case; 631-a card slot; 632-front baffle table; 633-rear blocking platform; 634-a keyway; 64-an optical fiber; 65-inserting a pin; 66-a sleeve; 67-a spring; 68-cable leather fixing sleeve; 681-cards; 682-tooth profile structure; 69-cable sheath.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the cable assembly and plug assembly of the present invention are described in further detail below with reference to the examples.
Example 1 of the cable assembly of the present invention: the optical cable assembly of the present invention includes an optical cable and a plug assembly connected to an end of the optical cable, and is mainly used for transmitting optical signals. As shown in fig. 3 and 4, the plug assembly of the present invention mainly includes two parts, namely, a plug portion 30 and a fixing portion 40, wherein the plug portion 30 is mainly used for being plugged and matched with the receptacle assembly, and the fixing portion 40 mainly includes a plurality of sealing rings and threaded fasteners for fixing the plug portion 30 and the optical fibers 64 inserted therein.
The plug assembly mainly comprises a plug shell 50 and a plug core module 60, wherein the plug core module 60 is positioned in the plug shell 50 when in use, and the plug shell 50 is processed by metal materials and plays a role in forming reliable mechanical connection with a socket and protecting the plug core module 60. The ferrule module 60 is composed of optical fibers 64 and other structural members, and mainly fixes the optical fibers 64.
The ferrule module 60 includes a module housing, a ferrule mounting housing 63, and a ferrule assembly, in which a ferrule 65 is sleeved with a sleeve 66 and a spring 67, an optical fiber 64 inserted into the ferrule assembly further has a cable sheath 69, and the optical fiber 64 is sleeved with a fixed cable sheath 69. The construction of the plug-in module 60 will now be described in detail.
The ferrule mounting case 63 in this embodiment has a rectangular parallelepiped structure, the extending direction of the optical fiber 64 is the front-rear direction, the left and right sides of the ferrule mounting case 63 are provided with the locking grooves 631 extending in the front-rear direction and serving as the fixing compartments, and the end portions of the locking grooves 631 penetrate the front and rear ends of the ferrule mounting case 63. The opening of the card slot 631 located on the left side of the ferrule mounting case 63 faces to the left, the opening of the card slot 631 located on the right side of the ferrule mounting case 63 faces to the right, and the openings facing to the left or the right in the two card slots 631 serve as lateral openings to enable the optical fiber 64 and the insertion pin 65 and the spring 67 sleeved on the optical fiber 64 to enter and exit.
The pin 65 in this embodiment has an outer flange. In the ferrule mounting case 63, a front end, i.e., a plug end, of the card slot 631 is provided with a front stop 632, so that when the contact pin 65 enters the card slot 631 along with the optical fiber 64 from a side direction, the contact pin 65 can be stopped and matched with a forward end face of the outer flange to limit forward movement of the contact pin 65. The edge of the front stop 632 is further provided with a salient point, so that two ends of the clamping groove 631 are in a closing structure, the contact pin 65 must be clamped into the front stop 632 through a forced installation method, and the salient point of the front stop 632 can limit the movement of the contact pin 65 along the left-right direction. A tapered surface is provided on the front end surface of the front abutment 632 for guiding the pins of the receptacle assembly into engagement with the sleeves 66.
The rear end of the card slot 631 is provided with a rear stop 633, the rear stop 633 is mainly used for supporting a spring 67 clamped into the card slot 631 along with the optical fiber 64, one end of the spring 67 is supported on the rear end face of the flange on the pin 65, the other end of the spring 67 is supported on the rear stop 633, the spring 67 is elastically supported between the rear stop 633 and the flange on the pin 65, and the pin 65 is pushed to the front stop 632. The rear stop 633 has the same structure as the front stop 632 in view of manufacturing convenience, but the rear stop 633 cannot catch the optical fiber 64, but supports the spring 67 in the front-rear direction.
The protruding direction of the salient point on the clamping groove 631 at the left side and the right side of one ferrule mounting shell 63 is also opposite, namely, the salient point on the clamping groove 631 at the left side protrudes downwards, and the salient point on the clamping groove 631 at the right side protrudes upwards.
The module housing in this embodiment is of a split structure, and includes a first split 61 and a second split 62 which are combined to form the whole module housing, the first split 61 and the second split 62 have the same structure, and the first split 61 and the second split 62 can be combined to cover the ferrule mounting case 63. The structure of the module case will now be described by taking the second split 62 as an example. The second split 62 of the module housing includes three sections in the length direction, which are a sleeve support section, a ferrule mounting housing support section, and a cable sheath fixing sleeve support section in sequence from front to back.
When the contact pin 65 is used, a sleeve 66 made of a ceramic material is sleeved on a part of the front end of the contact pin 65, which extends out of the ferrule mounting shell 63, a positioning hole is formed in a sleeve supporting section of the module shell, which corresponds to the sleeve 66, specifically, a semicircular groove 623 which is enclosed with the sleeve 66 in shape is formed in the module shell, the semicircular groove 623 penetrates through the module shell along the front-back direction, the semicircular grooves 623 in the first split part 61 and the second split part 62 are provided with arc surfaces, the positioning hole is formed when the first split part 61 and the second split part 62 are combined, the positioning hole has a cylindrical envelope surface which is matched with the shape of the sleeve 66, and the sleeve 66 can be enclosed and positioned. The front end of the semicircular groove 623 is provided with a sleeve stopper 624 extending in a direction perpendicular to the front-rear direction, when the sleeve 66 is fitted in the semicircular groove 623, the front end of the sleeve 66 is restricted by the sleeve stopper 624 and cannot move forward, and the rear end of the sleeve 66 abuts against the front end face of the flange of the pin 65, so that the sleeve 66 is completely positioned.
The supporting section of the ferrule mounting case is provided with a concave cavity 621 connected with the semi-circular groove 623 in the front-rear direction, and the left side and the right side of the concave cavity 621 are arranged in a penetrating manner. The size of the cavity 621 in the front-back direction is matched with the size of the ferrule mounting shell 63 in the front-back direction, the ferrule mounting shell 63 can be clamped, keys 622 are arranged on the front cavity wall and the rear cavity wall of the cavity 621, the ferrule mounting shell 63 is correspondingly provided with a key groove 634, and the ferrule mounting shell 63 is fixed in a ferrule mounting shell mounting bin formed by the involution of the cavity 621 on the first split piece 61 and the second split piece 62 through key connection.
The cable sheath fixing sleeve 68 is connected with the ferrule mounting housing 63, the cable sheath fixing sleeve 68 in the embodiment is a sleeve structure and comprises a fixing part and a crimping part, the fixing part of the cable sheath fixing sleeve 68 is a clamping piece 681 arranged at the front end of the outer peripheral surface, the crimping part of the cable sheath fixing sleeve 68 is a tooth-shaped structure 682 arranged at the rear end of the outer peripheral surface, and the cable sheath 69 for protecting the optical fiber 64 can be crimped on the tooth-shaped structure 682.
Correspondingly, a groove 625 which is matched with the clamping sheet 681 in an inserting manner is arranged in the second split 62 of the module shell, after the cable sheath 68 is pressed and connected with the cable sheath 69, the pin 65 and the spring 67 enter the inserting core mounting shell 63, the cable sheath 68 is mounted in the module shell and fixed in position, and the cable sheath 69 in the optical fiber 64 enters the fixing part 40 of the plug assembly.
In this embodiment, the module case can hold two ferrule mounting cases 63 in the left-right direction, thereby realizing four-core outgoing. Correspondingly, four structures in the module housing that fit the sleeves 66 and the cable sheath 68 are also arranged side by side.
The plug housing 50 has a ferrule module 60 mounting cavity adapted to the outer shape of the module housing, and the module housing and the accessories inside the module housing are stably supported in the plug housing 50 by the outer circumferential surface of the module housing being engaged with the wall surface of the mounting cavity. The front end of the plug housing 50 is provided with a long hole for exposing the four cores extended from the ferrule mounting case 63 out of the plug housing 50 at the same time.
In this embodiment, lock pin installation shell 63 and module housing are the plastic products that obtain through injection moulding, obtain batch products through one set of mould when adding man-hour, compare with the mode of machine tooling, lock pin installation shell 63 size uniformity that obtains through moulding plastics is good, the plug housing 50 of being made by metal material can resist external adverse circumstances, lock pin installation shell 63 and module housing that obtain through injection moulding, it is good to carry out spacing limit structure uniformity to contact pin 65, it is accurate to fix a position, can avoid processing the uniformity that limit structure and bring in metal material's plug housing 50, the unstable problem of product quality.
When an operator uses the plug assembly of the present invention, the insertion pin 65, the sleeve 66, the spring 67 and the cable sheath fixing sleeve 68 are firstly sleeved on the optical fiber 64, then the cable sheath 69 of the optical fiber 64 is pressed with the cable sheath fixing sleeve 68, and the sleeve 66 and the spring 67 are both sleeved on the insertion pin 65. Then, the combined optical fiber 64, the contact pin 65 and the spring 67 are squeezed into the clamping groove 631 of the ferrule mounting shell 63, the ferrule mounting shell 63 is used for limiting the spring 67 and the contact pin 65, and the sleeve 66 and the cable sheath fixing sleeve 68 can still freely move on the contact pin 65 or the optical fiber 64.
The ferrule mounting case 63 is aligned with one of the first and second halves 61, 62 of the module case, the key groove 634 of the ferrule mounting case 63 is aligned with the key 622 of the module case, so that the module case is keyed with the ferrule mounting case 63, the sleeve 66 falls into the semicircular groove 623 of the module case, and the sleeve stop 624 at the front end of the semicircular groove 623 can limit the position of the sleeve 66 in the front-rear direction. The tabs 681 of the cable sheath 68 snap into the grooves 625 in the module housing to effect securement of the cable sheath 68.
After the optical fiber 64 and the accessories are fixed, the first split piece 61 and the second split piece 62 are closed, so that the module shell covers the ferrule installation shell 63, the assembly of the ferrule module 60 is completed at this moment, then the ferrule module 60 is inserted into the installation cavity of the plug shell 50, and the front end of the ferrule module 60 is exposed from the long hole at the front end of the plug shell 50 and can be in adaptive connection with the socket assembly.
Example 2 of the cable assembly of the present invention: the difference with the above embodiment is that the core mounting shell in this embodiment can adopt a machined part, and in the machining process, the accuracy of the adaptive structure adapted to the module shell in the core mounting shell needs to be ensured.
Example 3 of the cable assembly of the present invention: the difference from the above embodiments is that the number of the fixing bins on the core mounting shell in this embodiment is not limited to two, and only one fixing bin may be provided, and a plurality of fixing positions for mounting the core mounting shell are arranged in the module shell, or three or more fixing bins are arranged, and at this time, the fixing bins may be arranged at two adjacent sides, or at the same side; the orientation of the lateral opening of the fixed bin is not limited to be back-to-back, and can be oriented to the same side.
Example 4 of the cable assembly of the present invention: the difference with the above embodiment is that in this embodiment, the fixed bin may be provided with a stop pin or a baffle, and after the ferrule assembly is installed in the fixed bin, the stop pin or the baffle is used to limit the ferrule assembly, so as to prevent the ferrule assembly from accidentally coming out, and the method is not limited to the method of forcibly installing the ferrule assembly to prevent the ferrule assembly from accidentally coming out.
Example 5 of the cable assembly of the present invention: the difference from the above embodiments is that the salient points disposed at the edge of the card slot in this embodiment may also face the same side, for example, the salient points in the left card slot and the right card slot are both convex upward or convex downward.
Example 6 of the cable assembly of the present invention: the module shell in the embodiment includes a main shell, an installation cavity for accommodating the ferrule installation shell is arranged in the main shell, a sealing cover is arranged at an opening of the installation cavity, after the ferrule assembly is installed in the ferrule installation shell, the ferrule installation shell is installed in the main shell of the module shell, and the sealing cover is covered to fix the ferrule installation shell, without being limited to the module shell adopting a split structure.
Example 7 of the cable assembly of the present invention: the difference from the above embodiments is that the module housing in this embodiment still adopts a petal structure, wherein one petal body is provided with a complete positioning hole, and the other petal body is not provided with a positioning hole. The insertion core installation shell is installed only by utilizing the clack structure, and the positioning hole is not enclosed by the clack structure.
Example 8 of the cable assembly of the present invention: the difference with the above embodiment is that the core mounting shell and the module housing in this embodiment are fixedly connected through a snap structure, or the core mounting can be clamped between two petal bodies by using the module housing with a petal structure.
Example 9 of the cable assembly of the present invention: the difference from the above embodiment is that the ferrule assembly in this embodiment does not include a sleeve, but only includes a pin for inserting the optical fiber, the module housing is provided with a positioning hole for directly positioning the pin, and the pin is positioned by the module housing and then inserted into the sleeve of the adaptive socket assembly.
Example 10 of the cable assembly of the present invention: the difference from the above embodiments is that in the present embodiment, the fixed magazines are stacked in the up-down direction, or only one fixed magazine is provided in one ferrule mounting case, and the present invention is not limited to the case of arranging the fixed magazines in the left-right direction.
The construction of the plug assembly of the present invention is the same as that of the cable assembly embodiments described above, and therefore a detailed description of the plug assembly will not be repeated.
The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A plug assembly, comprising:
a plug housing having a ferrule module mounting cavity;
a ferrule module, comprising:
the ferrule assembly comprises a spring sleeved on a contact pin, the contact pin is provided with an outer flange, and the outer flange limits and stops the spring;
the ferrule mounting shell is provided with one or more than two fixing bins for fixing the ferrule assembly, the fixing bins extend along the front and back direction and are provided with lateral openings, the lateral openings are used for dismounting the ferrule assembly, and after the ferrule assembly is arranged in the fixing bins, the spring compresses and provides elastic force for the contact pins towards the inserting side;
the module shell is formed by injection molding and is used for fixing the ferrule installation shell and is provided with a positioning hole for positioning a sleeve in the ferrule assembly or a positioning hole for positioning a contact pin in the ferrule assembly, the module shell is of a split structure, and the ferrule installation shell is fixed in the module shell in a buckling mode.
2. The plug assembly of claim 1, wherein: and injection molding of the ferrule installation shell.
3. The plug assembly of claim 1 or 2, wherein: the fixed storehouse that sets up on the lock pin installation shell has two, and the side direction opening in fixed storehouse is carried on the back mutually.
4. The plug assembly of claim 3, wherein: the clamping groove which is arranged on the bin wall of the fixed bin and is close to the plugging side and used for laterally loading the contact pins is of a closing structure, and the contact pins are laterally loaded into the clamping groove in a forced loading mode.
5. The plug assembly of claim 4, wherein: the border department of draw-in groove is provided with the bump that makes draw-in groove border shrink in order to form binding off structure, and the protrusion direction of two bumps is opposite.
6. The plug assembly of claim 1, wherein: the module shell is symmetrically divided into two petals, semi-circular grooves are respectively arranged on the two petal bodies, and the two semi-circular grooves form the positioning holes after buckling.
7. The plug assembly of claim 1 or 2, wherein: one of the insertion core installation shell and the module shell is provided with a key, the other one of the insertion core installation shell and the module shell is provided with a key groove, and the insertion core installation shell is fixed on the module shell through key connection.
8. The plug assembly of claim 1 or 2, wherein: the inserting core assembly comprises a cable leather fixing sleeve, and a limiting structure for limiting the cable leather fixing sleeve to move back to the inserting side is arranged on the module shell.
9. Optical cable subassembly, including optical cable and the plug subassembly of connection at the optical cable tip, its characterized in that: the plug assembly of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167099.3A CN110989091B (en) | 2019-11-25 | 2019-11-25 | Optical cable assembly and plug assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167099.3A CN110989091B (en) | 2019-11-25 | 2019-11-25 | Optical cable assembly and plug assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110989091A CN110989091A (en) | 2020-04-10 |
| CN110989091B true CN110989091B (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911167099.3A Active CN110989091B (en) | 2019-11-25 | 2019-11-25 | Optical cable assembly and plug assembly thereof |
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| Country | Link |
|---|---|
| CN (1) | CN110989091B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448478A (en) * | 1979-05-08 | 1984-05-15 | International Telephone & Telegraph Corporation | Fiber optic connector |
| US5574812A (en) * | 1993-01-26 | 1996-11-12 | Siemens Aktiengesellscnaft | Holder arrangement for optical connectors or the like |
| CN208752243U (en) * | 2017-07-14 | 2019-04-16 | 扇港元器件有限公司 | Reconfigurable optical fiber connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363461A (en) * | 1993-07-20 | 1994-11-08 | Bergmann Ernest E | Field installable optical fiber connectors |
| JP3746615B2 (en) * | 1998-08-07 | 2006-02-15 | 株式会社フジクラ | Optical connector connection tool |
| CN106785615B (en) * | 2017-01-19 | 2023-03-10 | 乐清市神创电气科技有限公司 | Waterproof industrial plug with automatic locking function |
| CN208399745U (en) * | 2018-07-19 | 2019-01-18 | 罗森伯格（上海）通信技术有限公司 | A kind of lock pin fixed structure and optical fiber connector |
-
2019
- 2019-11-25 CN CN201911167099.3A patent/CN110989091B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448478A (en) * | 1979-05-08 | 1984-05-15 | International Telephone & Telegraph Corporation | Fiber optic connector |
| US5574812A (en) * | 1993-01-26 | 1996-11-12 | Siemens Aktiengesellscnaft | Holder arrangement for optical connectors or the like |
| CN208752243U (en) * | 2017-07-14 | 2019-04-16 | 扇港元器件有限公司 | Reconfigurable optical fiber connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110989091A (en) | 2020-04-10 |
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Effective date of registration: 20221026 Address after: 201100 floor 10, building 5, No. 525, Yuanjiang Road, Minhang District, Shanghai Patentee after: AVIC Optoelectronics (Shanghai) Co.,Ltd. Address before: 471003 No.10 Zhoushan Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: AVIC JONHON OPTRONIC TECHNOLOGY Co.,Ltd. |
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