CN117826333B - Watertight connector - Google Patents
Watertight connector Download PDFInfo
- Publication number
- CN117826333B CN117826333B CN202410239457.1A CN202410239457A CN117826333B CN 117826333 B CN117826333 B CN 117826333B CN 202410239457 A CN202410239457 A CN 202410239457A CN 117826333 B CN117826333 B CN 117826333B
- Authority
- CN
- China
- Prior art keywords
- socket shell
- sealing sleeve
- wall
- watertight connector
- stop piece
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 137
- 239000003292 glue Substances 0.000 claims abstract description 86
- 230000003287 optical effect Effects 0.000 claims abstract description 85
- 239000000565 sealant Substances 0.000 claims abstract description 51
- 239000000853 adhesive Substances 0.000 claims abstract description 42
- 230000001070 adhesive effect Effects 0.000 claims abstract description 42
- 230000000670 limiting effect Effects 0.000 claims description 61
- 238000005498 polishing Methods 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000012945 sealing adhesive Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004588 polyurethane sealant Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004589 rubber sealant Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—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
- G02B6/3833—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to the technical field of electric connectors, and provides a watertight connector, which comprises: the socket comprises a socket shell, an optical pin assembly and an optical cable; a stop piece is arranged in the socket shell, a first end of the stop piece extends to the front end of the socket shell, and a pouring cavity is formed between a second end of the stop piece and the rear end of the socket shell; the optical pin assembly is arranged in the stop piece; one end of the optical cable is penetrated in the filling cavity and connected with the optical pin assembly; the filling cavity is filled with sealant and structural adhesive, sealing between the optical cable and the socket shell is achieved, the sealant and the structural adhesive are distributed along the axial direction of the filling cavity, and the structural adhesive is located on one side, away from the stop piece, of the sealant. According to the invention, a two-step glue filling method can be adopted, and good longitudinal watertight of the watertight connector is realized by utilizing the sealing performance of the sealant and the pressure-bearing characteristic of the structural glue, so that the radial dimension of the watertight connector is reduced, and the development trend of the miniaturized light watertight connector is met.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to a watertight connector.
Background
The watertight connector can be widely applied to the occasions such as underwater instrument equipment systems, underwater communication systems, sonar systems, underwater robot systems and the like, and provides stable and reliable power transmission, signal acquisition and good watertight performance for deep sea universal equipment such as deep submarines, underwater robots and the like.
With the continuous development of the marine industry, the underwater vehicle is developed towards miniaturization and intellectualization, the information transmission quantity is continuously increased, but the volume requirement on the watertight connector is smaller and smaller, and the information transmission efficiency of the optical fiber is far greater than that of the cable, so that the conventional electric connector is required to be developed towards the miniaturized watertight connector.
An important index of the watertight connector is that the socket connector must have a longitudinal watertight function, so that serious loss caused by water inflow in an equipment cabin due to water leakage of a plugging part of the connector or a photoelectric cable is avoided, the conventional watertight connector mostly adopts an O-shaped ring to realize longitudinal watertight of an optical contact, and the design causes the watertight connector to have a large size and is not beneficial to miniaturization design.
In the related art, some watertight connectors are generally provided with a waterproof layer encapsulated on the outer surface thereof, and although the waterproof layer can ensure that the watertight connector achieves a better waterproof sealing effect while enhancing the compressive strength of the watertight connector, the radial dimension and the axial dimension of the watertight connector are both larger, so that the miniaturization design requirement of the watertight connector is difficult to meet.
Disclosure of Invention
The invention provides a watertight connector which is used for solving the problem of large volume of the existing watertight connector.
The present invention provides a watertight connector comprising: the socket comprises a socket shell, an optical pin assembly and an optical cable; a stop piece is arranged in the socket shell, a first end of the stop piece extends to the front end of the socket shell, and a pouring cavity is formed between a second end of the stop piece and the rear end of the socket shell; the optical pin assembly is arranged in the stop piece; one end of the optical cable penetrates through the filling cavity and is connected with the optical pin assembly;
the optical cable and the socket shell are sealed, the sealant and the structural adhesive are distributed along the axial direction of the filling cavity, and the structural adhesive is located on one side, deviating from the stop piece, of the sealant.
According to the present invention, there is provided a watertight connector, further comprising: filling glue and sealing the sleeve; the glue filling sealing sleeve is arranged in the filling cavity and is provided with a front end and a rear end, the outer wall of the front end of the glue filling sealing sleeve is connected with the inner wall of the second cavity, and the rear end of the glue filling sealing sleeve is exposed out of the rear end of the socket shell; the inner wall of the glue filling sealing sleeve is provided with a groove body which extends along the circumferential direction relative to the central line of the glue filling sealing sleeve; the sealant and the structural adhesive are arranged in the sealant filling sealing sleeve, and one end of the optical cable penetrates through the sealant filling sealing sleeve to be connected with the optical pin assembly.
According to the watertight connector provided by the invention, at least part of the inner wall of the glue filling sealing sleeve is provided with the polishing layer, and the sealant is arranged between the optical cable and the polishing layer.
According to the watertight connector provided by the invention, the outer wall of the glue filling sealing sleeve and/or the inner wall of the socket shell are/is provided with the first accommodating groove, and the first accommodating groove extends along the circumferential direction relative to the central axis of the socket shell; the watertight connector further comprises: the first sealing ring is arranged in the first accommodating groove, is arranged between the glue filling sealing sleeve and the socket shell, and is used for sealing between the glue filling sealing sleeve and the socket shell.
According to the present invention, there is provided a watertight connector, further comprising: a first limiting member; the first limiting piece is connected with the rear end of the glue filling sealing sleeve, and the side wall of the first limiting piece is in contact with the outer wall of the socket shell so as to limit the glue filling sealing sleeve.
According to the present invention, there is provided a watertight connector, further comprising: an elastic member; the stop piece is provided with a wire passing hole, and the optical pin assembly and the optical cable are arranged in the wire passing hole in a penetrating mode; the elastic piece is arranged in the wire passing hole, the first end of the elastic piece is connected with the optical pin assembly, and the second end of the elastic piece is connected with the wire passing hole.
According to the present invention there is provided a watertight connector, the stopper comprising: the front stop piece and the rear stop piece are distributed front and back along the axial direction of the socket shell; the front stop piece is provided with a first through hole, the rear stop piece is provided with a second through hole, and the first through hole and the second through hole are coaxially arranged to form the wire passing hole; the inner diameter of the second through hole is smaller than that of the first through hole so as to form a step surface between the first through hole and the second through hole; the second end of the elastic piece is connected with the back stop piece and the step surface.
According to the watertight connector provided by the invention, the inner wall of the socket shell is provided with the limiting boss, the limiting concave table and the second limiting piece, the limiting boss and the limiting concave table extend along the circumferential direction relative to the central axis of the socket shell, and the limiting concave table and the limiting boss are respectively arranged at the front end and the rear end of the stop piece along the extending direction of the stop piece; the second limiting piece is detachably arranged in the limiting concave table, and the inner diameter of the second limiting piece is smaller than the outer diameter of the stopping piece so as to limit the front end of the stopping piece; the inner diameter of the limiting boss is smaller than the outer diameter of the stop piece so as to limit the rear end of the stop piece.
According to the watertight connector provided by the invention, the outer wall of the socket shell is provided with the annular boss, and the annular boss extends along the circumferential direction relative to the central axis of the socket shell; the annular boss is provided with a second accommodating groove which extends along the circumferential direction relative to the central axis of the socket shell; the watertight connector further comprises: the second sealing ring is arranged in the second accommodating groove and is used for being in contact with the first side wall of the mounting panel.
According to the watertight connector provided by the invention, the outer wall of the socket shell is provided with the third accommodating groove, and the third accommodating groove extends along the circumferential direction relative to the central axis of the socket shell; the watertight connector further comprises: the third sealing ring is arranged in the third accommodating groove and is used for being in contact with the second side wall of the mounting panel.
According to the watertight connector provided by the invention, the stop piece is arranged in the socket shell and is used for providing mounting support for the optical pin assembly, so that when the optical pin assembly is mounted at the front end of the socket shell, a gap possibly existing in the socket shell is effectively reduced, and a filling cavity can be formed between the second end of the stop piece and the rear end of the socket shell, so that sealant and structural adhesive can be conveniently filled into the filling cavity, and sealing between an optical cable and the socket shell is realized; because the structural adhesive is positioned on one side of the sealing adhesive, which is away from the stop piece, when the position where the stop piece is positioned is sealed by the sealing adhesive, the structural adhesive can bear the water pressure from the rear end of the socket shell, so that the problem of water leakage caused by the deformation of the sealing adhesive due to the water pressure can be avoided, and the reliable watertight connection between the optical cable and the socket shell is ensured.
Compared with the traditional light watertight connector, the watertight connector realizes good longitudinal watertight, is beneficial to reducing the radial size of the watertight connector and accords with the development trend of the miniaturized light watertight connector.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a watertight connector provided by some embodiments of the present invention;
FIG. 2 is a schematic illustration of a receptacle housing according to some embodiments of the present invention;
fig. 3 is a second schematic structural view of a socket housing according to some embodiments of the present invention.
Reference numerals:
110: a socket housing; 111: an annular boss; 112: a second accommodation groove; 113: a third accommodation groove; 120: filling glue and sealing the sleeve; 121: sealing glue; 122: structural adhesive; 123: a tank body; 124: a first accommodation groove; 125: polishing the layer; 130: an optical pin assembly; 140: an optical cable; 150: a first limiting member; 160: a stopper; 161: a front stopper; 1611: a first through hole; 162: a rear stopper; 1621: a second through hole; 170: an elastic member; 180: a second limiting piece; 191: a first seal ring; 192: a second seal ring; 193: and a third sealing ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
With the continuous development of the marine industry, the volume requirements of watertight connectors are becoming smaller and smaller, which is a requirement for the development of miniaturized light watertight connectors from traditional electrical connectors.
However, most of the conventional watertight connectors adopt O-rings to realize longitudinal watertight of the optical contact, which causes the connector to have larger volume and is not beneficial to the miniaturization design.
The invention provides a watertight connector, which can realize the longitudinal sealing of the watertight connector, reduce the radial size of the watertight connector and reduce the volume of the watertight connector.
The watertight connector of the present invention is described below with reference to fig. 1 to 3.
As shown in fig. 1, the watertight connector provided by the present invention includes: a receptacle housing 110, an optical ferrule assembly 130, and an optical cable 140.
The socket housing 110 is provided therein with a stopper 160, a first end of the stopper 160 extends toward a front end of the socket housing 110, and a filling cavity is formed between a second end of the stopper 160 and a rear end of the socket housing 110. Wherein, along the extending direction of the socket housing 110, the inner diameter of the filling cavity gradually decreases from front to back.
The optical pin assembly 130 is disposed in the stopper 160; one end of the optical cable 140 is disposed through the perfusion chamber and is connected to the optical pin assembly 130.
The filling cavity is filled with sealant 121 and structural adhesive 122 to realize sealing between the optical cable 140 and the socket housing 110; the sealant 121 and the structural adhesive 122 are distributed along the axial direction of the pouring cavity; the sealant 121 and the structural adhesive 122 are disposed between the optical cable 140 and the inner wall of the socket housing 110, and the structural adhesive 122 is located on a side of the sealant 121 facing away from the stopper 160.
It can be understood that the sealant 121 can be adaptively set according to the structural form of the sealing surface, and the sealant 121 has a certain cohesiveness but is easy to deform; the structural adhesive 122 has high strength and good stability after solidification, is not easy to deform, is arranged on one side of the sealing adhesive 121, which is away from the stop piece 160, and can resist water pressure through the structural adhesive 122, so that the sealing adhesive 121 is prevented from deforming due to overlarge pressure bearing, and even water leakage occurs. Wherein, based on the arrangement of the structural adhesive 122, the compression resistance of the watertight connector at the rear end of the corresponding socket housing 110 can reach 20KMpa.
At the same time, the first end of the stopper 160 extends toward the front end of the socket housing 110, the second end of the stopper 160 extends to the middle of the socket housing 110, and the circumferential wall of the stopper 160 is fitted with the inner wall of the socket housing 110 to provide internal support for the socket housing 110 based on the stopper 160 and to reduce a gap that may exist between the front end of the socket housing 110 and the middle of the socket housing 110 as much as possible. Because the sealant 121 and the structural adhesive 122 are filled in the filling cavity, the sealant 121 and the structural adhesive 122 can ensure that no gap exists in the filling cavity while sealing between the optical cable 140 and the inner wall of the socket shell 110 is realized, and the design effectively enhances the compressive property of the socket shell 110 under water, thereby being beneficial to reducing the underwater loss of products.
According to the watertight connector provided by the invention, the stop piece 160 is arranged in the socket shell 110, so that the stop piece 160 is used for providing mounting support for the optical pin assembly 130, the optical pin assembly 130 is mounted at the front end of the socket shell 110, meanwhile, a gap possibly existing in the socket shell 110 is effectively reduced, a filling cavity can be formed between the second end of the stop piece 160 and the rear end of the socket shell 110, the sealant 121 and the structural adhesive 122 can be conveniently filled into the filling cavity, and the sealing between the optical cable 140 and the socket shell 110 is realized; because the structural adhesive 122 is located at one side of the sealing adhesive 121, which is away from the stopper, the sealing adhesive 121 seals the position where the stopper 160 is located, and meanwhile, the structural adhesive 122 can bear the water pressure from the rear end of the socket housing 110, so that the problem that the sealing adhesive 121 leaks water due to the deformation of the water pressure can be avoided, and the reliable watertight connection between the optical cable 140 and the socket housing 110 is ensured.
Compared with the traditional light watertight connector, the watertight connector disclosed by the invention can realize good longitudinal watertight without wrapping a waterproof layer on the outer surface of the watertight connector, is beneficial to reducing the radial size of the watertight connector, and accords with the development trend of the miniaturized light watertight connector.
It should be noted herein that the front end of the optical pin assembly 130 faces the front end of the receptacle housing 110, the rear end of the optical pin assembly 130 faces the rear end of the receptacle housing 110, and the end of the optical cable 140 facing the stopper 160 is connected to the rear end of the optical pin assembly 130.
Optical ferrule assembly 130 includes an optical ferrule and a tail end connection for connection with optical cable 140.
In some embodiments, the structural adhesive 122 may be disposed at the rear end of the sealant 121 along the axial direction of the socket housing 110, that is, the structural adhesive 122 may be disposed in a filling cavity between the rear end of the socket housing 110 and the sealant 121, which can prevent the sealant 121 from being laterally deformed and ensure the sealing effect of the sealant 121.
In some embodiments, the structural adhesive 122 may be disposed at the front and rear ends of the sealant 121 along the axial direction of the socket housing 110, so that the design can prevent the lateral deformation of the sealant 121 at both sides, and further ensure the sealing effect of the sealant 121.
The sealant 121 may be a sealant known in the art, for example, the sealant 121 may be a polyurethane sealant, a silicone rubber sealant, a polysulfide rubber sealant, or the like.
The structural adhesive 122 may be a sealing adhesive known in the art, for example, the structural adhesive 122 may be an epoxy supporting adhesive or a modified epoxy supporting adhesive.
Further, the watertight connector further includes: a glue-pouring sealing sleeve 120; the glue-pouring sealing sleeve 120 is arranged in the pouring cavity.
The glue sealing boot 120 has a front end and a rear end, the front end of the glue sealing boot 120 being located inside the socket housing 110. The port corresponding to the front end of the glue filling sealing sleeve 120 extends to the middle of the socket housing 110 and abuts against the second end of the stop member 160, and the rear end of the glue filling sealing sleeve 120 penetrates through the rear end of the socket housing 110 and abuts against the rear end of the socket housing 110.
The outer wall of the front end of the glue-pouring sealing sleeve 120 is connected with the inner wall of the socket shell 110; the rear end of the glue sealing sleeve 120 is exposed at the rear end of the socket housing 110.
The sealant 121 and the structural adhesive 122 are arranged in the sealant sealing sleeve 120, and one end of the optical cable 140 penetrates through the sealant sealing sleeve 120 to be connected with the optical pin assembly 130; the inner wall of the glue filling sealing sleeve 120 is provided with a groove body 123, and the groove body 123 extends and is arranged along the circumference relative to the central axis of the glue filling sealing sleeve 120.
At least a portion of the glue filling sealing sleeve 120 is disposed in the socket housing 110, and an area corresponding to the interior of the glue filling sealing sleeve 120 is used for filling the sealant 121 and the structural glue 122, and a peripheral wall of the glue filling sealing sleeve 120 is adapted to an inner wall of the socket housing 110.
The outer wall of the front end of the glue filling sealing sleeve 120 is connected with the inner wall of the socket housing 110, and the connection mode can be detachable connection such as contact connection, threaded connection and the like.
A seal is formed between the outer wall of the front end of the glue-filled sealing sleeve 120 and the inner wall of the socket housing 110 to ensure the longitudinal watertight performance of the watertight connector.
In some embodiments, the outer diameter of the glue sealing boot 120 is smaller than the inner diameter of the front end of the socket housing 110, such that the glue sealing boot 120 can be inserted into the interior of the socket housing 110 from the front end of the socket housing 110.
The inner wall of the glue filling sealing sleeve 120 is provided with a groove 123, and the opening direction of the groove 123 faces the central axis of the glue filling sealing sleeve 120.
It can be understood that by arranging the groove 123 on the inner wall of the glue filling sealing sleeve 120, the contact area between the glue filling sealing sleeve 120 and the sealant 121 and the structural adhesive 122 can be increased, and the curing stability is improved; meanwhile, after the sealant 121 and the structural adhesive 122 are cured, the sealant 121 and the structural adhesive 122 form an engagement structure with the groove 123, namely, deformation of the sealant 121 and the structural adhesive 122 is avoided, an axial limiting effect is achieved, stepped structural sealing is formed, and the longitudinal watertight performance of the watertight connector is improved.
In some embodiments, the front end of the glue-filled sealing sleeve 120 is filled with sealing glue at a position of 10mm to 15mm, and is vulcanized with the optical cable 140 with the polyurethane sheath, so as to perform the function of longitudinal sealing of the optical cable 140.
In some embodiments, the tail end of the glue filling sealing sleeve 120 is provided with a conical structure, and the structural glue 122 is encapsulated at the tail end of the glue filling sealing sleeve 120, so that the bearing area of the structural glue 122 can be reduced, and the structural glue 122 is utilized to support the sealing glue 121, so that the sealing glue 121 is prevented from being deformed by water pressure, and the watertight failure effect is caused.
Further, the plurality of grooves 123 may be provided, and the plurality of grooves 123 are distributed along the axial direction of the socket housing 110, wherein a part of the plurality of grooves 123 is in contact with the sealant 121, and another part of the plurality of grooves 123 is in contact with the structural adhesive 122, so that the sealant 121 and the structural adhesive 122 achieve the above effects simultaneously.
Further, as shown in fig. 2 and 3, at least part of the inner wall of the glue filling sealing sleeve 120 is provided with a polishing layer 125; the sealant 121 is disposed between the fiber optic cable 140 and the polishing layer 125.
It will be appreciated that the polishing layer 125 is formed on the inner wall of the potting compound 120 by polishing at least a portion of the inner wall surface of the potting compound 120.
The number of sand paper used for polishing is 80-100, and adhesive smearing is performed after polishing is completed, so that the sealing glue 121 and the glue filling sealing sleeve 120 are firmly combined.
Further, the outer wall of the glue sealing sleeve 120 and/or the inner wall of the socket housing 110 are provided with a first accommodating groove 124, and the first accommodating groove 124 extends along the circumferential direction relative to the central axis of the socket housing 110; the watertight connector further comprises: the first sealing ring 191, the first sealing ring 191 is disposed in the first accommodating groove 124 and disposed between the glue sealing sleeve 120 and the socket housing 110, for sealing between the glue sealing sleeve 120 and the socket housing 110.
In some embodiments, as shown in fig. 1, the first receiving groove 124 is disposed on an outer wall of the glue sealing sleeve 120, and an opening direction of the first receiving groove 124 faces an inner wall of the socket housing 110.
The first sealing ring 191 is disposed in the first accommodating groove 124, the first accommodating groove 124 and the inner wall of the socket housing 110 form an accommodating space, and the first sealing ring 191 is in an extrusion state in the accommodating space, so as to realize sealing between the glue filling sealing sleeve 120 and the socket housing 110.
In some embodiments, the first receiving groove 124 is disposed on the inner wall of the socket housing 110, and the opening direction of the first receiving groove 124 faces the outer wall of the glue sealing sleeve 120.
In some embodiments, the first accommodating groove 124 is divided into an outer ring groove and an inner ring groove, the outer ring groove is disposed on the inner wall of the socket housing 110, the inner ring groove is disposed on the outer wall of the glue sealing sleeve 120, the outer ring groove and the inner ring groove are disposed opposite to each other, and the inner wall of the outer ring groove and the inner wall of the inner ring groove jointly define an accommodating space for disposing the first sealing ring 191.
Further, the tail end of the glue filling sealing sleeve 120 is located outside the socket housing 110; the watertight connector further comprises: a first stopper 150; the first limiting piece 150 is connected with the rear end of the glue filling sealing sleeve 120, and the side wall of the first limiting piece 150 is in contact with the outer wall of the socket shell 110 so as to limit the glue filling sealing sleeve 120 and prevent the glue filling sealing sleeve 120 from moving along the axial direction of the socket shell 110.
In some embodiments, the outer diameter of the front end of the glue sealing sleeve 120 is greater than the outer diameter of the tail end of the glue sealing sleeve 120, the outer diameter of the front end of the glue sealing sleeve 120 is less than or equal to the inner diameter of the front end of the socket housing 110, and the outer diameter of the tail end of the glue sealing sleeve 120 is less than or equal to the inner diameter of the tail end of the socket housing 110, so that the glue sealing sleeve 120 can be installed into the socket housing 110 from the front end of the socket housing 110, the tail end of the glue sealing sleeve 120 can extend out from the tail end opening of the socket housing 110, and the front end of the glue sealing sleeve 120 is limited by the tail end of the socket housing 110.
In some embodiments, the first limiting member 150 may be a limiting nut, and the rear end of the glue sealing sleeve 120 is provided with an external thread, and the first limiting member 150 is in threaded connection with the rear end of the glue sealing sleeve 120. Because the first limiting piece 150 is abutted with the tail end of the socket housing 110 along the axial direction, and the front end of the glue filling sealing sleeve 120 is abutted with the tail end of the socket housing 110 along the axial direction, the first limiting piece 150 locks the glue filling sealing sleeve 120 in the socket housing 110, so that the glue filling sealing sleeve 120 is limited, and meanwhile, the first limiting piece 150 also has a sealing effect on the tail end of the glue filling sealing sleeve 120 to a certain extent.
Further, the watertight connector further includes: an elastic member 170; the stopper 160 is provided with a wire through hole, and the optical pin assembly 130 and the optical cable 140 penetrate through the wire through hole; the elastic member 170 is disposed inside the via hole, a first end of the elastic member 170 is connected to the optical pin assembly 130, and a second end of the elastic member 170 is connected to the via hole.
Wherein, the outer wall of the stopper 160 is adapted to the inner wall of the socket housing 110, for example, the outer diameter of the stopper 160 is adapted to the inner diameter of the socket housing 110, or the shape of the outer wall of the stopper 160 is adapted to the shape of the inner wall of the socket housing 110, so that the stopper 160 can be fixedly mounted inside the socket housing 110, and a possible gap between the stopper 160 and the socket housing 110 is reduced as much as possible.
Meanwhile, the wire through hole is a through hole, and the optical pin assembly 130 and the optical cable 140 are disposed through the wire through hole, and the front end of the optical pin assembly 130 faces the front end of the socket housing 110.
In some embodiments, a plurality of via holes are provided for mounting the optical pin assembly 130 and the spring 170.
The optical pin assembly 130 includes a plurality of optical pins, where the optical pins are disposed in one-to-one correspondence with the wire through holes, and an elastic member 170 is disposed between each optical pin and the wire through hole.
Wherein the elastic member 170 may be a spring or other resilient piece.
The wire through hole is in clearance fit with the optical pin assembly 130, and in the case that the elastic member 170 is a spring, the spring is sleeved on the optical pin assembly 130, and the spring is arranged in a clearance between the wire through hole and the optical pin assembly 130.
In some embodiments, the gap between the inner wall of the via hole and the outer wall of the optical pin assembly 130 is 0.2-0.3 mm, and the spring is disposed in the gap.
It can be appreciated that, due to the elastic action of the elastic member 170, in the case that the placement position of the optical pin assembly 130 is deflected, the elastic member 170 can elastically deform, so that the optical pin assembly 130 automatically resets, and the central axis of the optical pin assembly 130 is ensured to be coaxial with the central axis of the via hole.
In this embodiment, through setting up the elastic component 170, the one end and the light contact pin subassembly 130 of elastic component 170 are connected, and the other end is connected with the via hole, and under the condition that there is processing deviation or installation deviation in plug and socket spare part, the position of light contact pin subassembly 130 can be adjusted through the regulation effect of elastic component 170, realizes accurate cartridge, has effectively reduced the insertion loss of optical signal, has improved information transmission efficiency.
Further, the stopper 160 includes: the front stopper 161 and the rear stopper 162, the front stopper 161 and the rear stopper 162 being distributed front and rear along the axial direction of the socket housing 110; the front stopper 161 is provided with a first through hole 1611, the rear stopper 162 is provided with a second through hole 1621, and the first through hole 1611 and the second through hole 1621 are coaxially disposed to form a wire passing hole; the second through hole 1621 has an inner diameter smaller than that of the first through hole 1611 to form a stepped surface between the first through hole 1611 and the second through hole 1621; the second end of the elastic member 170 is connected to the stepped surface between the first through hole 1611 and the second through hole 1621.
Wherein, the front end of first through hole 1611 is equipped with first spacing platform, and first spacing platform extends along circumference for first through hole 1611's axis, and first spacing platform's internal diameter is less than first through hole 1611's internal diameter.
In some embodiments, the tail end of the optical pin assembly 130 is provided with a second limiting platform adapted to the first limiting platform, the second limiting platform has an inner diameter smaller than the inner diameter of the first through hole 1611, the second limiting platform has an inner diameter larger than the inner diameter of the first limiting platform, and the second limiting platform has an inner diameter larger than the inner diameter of the second through hole 1621, so that the tail end of the optical pin assembly 130 is defined in the first through hole 1611.
One end of the elastic member 170 is connected to a sidewall of the second stopper 162 facing the rear stopper 162, and the other end is connected to a sidewall of the rear stopper 162 exposed to the first through hole 1611, so as to ensure stability of connection.
The elastic member 170 is connected to the second limiting platform and the rear stop member 162, and the connection mode may be contact connection such as abutting connection, or connection such as clamping connection and gluing connection.
Further, the inner wall of the socket housing 110 is provided with a limiting boss, a limiting concave table and a second limiting member 180, wherein the limiting boss and the limiting concave table extend along the circumferential direction relative to the central axis of the socket housing 110, and the limiting concave table and the limiting boss are respectively arranged at the front end and the rear end of the stop member 160 along the extending direction of the stop member 160 so as to limit and fix the stop member 160.
The second limiting piece 180 is detachably arranged in the limiting concave table, and the inner diameter of the second limiting piece 180 is smaller than the outer diameter of the stop piece 160 so as to limit the front end of the stop piece 160; the inner diameter of the limit boss is smaller than the outer diameter of the stopper 160, and a stepped hole is formed to limit the rear end of the stopper 160.
Specifically, the limit concave station is disposed at a position close to the front end of the socket housing 110, the limit boss is disposed at a position far away from the front end of the socket housing 110, so that the stopper 160 can be smoothly installed into the socket housing 110 from the front end of the socket housing 110, insertion is stopped when the tail end of the stopper 160 abuts against the side wall of the limit boss, at this time, the front end of the stopper 160 is aligned with the groove wall of the limit concave station, the notch of the limit concave station is avoided, the second stopper 180 is installed into the limit concave station, the inner diameter of the second stopper 180 is smaller than the outer diameter of the front end of the stopper 160, and the second stopper 180 is matched with the limit concave station, so that the front end of the stopper 160 can be limited.
The second limiting member 180 may be an elastic collar or an annular metal ring, and the second limiting member 180 may be installed in the limiting recess by deformation or assembly.
In some embodiments, the second stopper 180 may be a semicircular sheet having elasticity, and the two semicircular sheets are sequentially snapped into the stopper recess to stop the front end of the stopper 160.
In some embodiments, the material of the second stop 180 may be beryllium bronze or 304 stainless steel.
Further, an annular boss 111 is provided on an outer wall of the socket housing 110, and the annular boss 111 extends circumferentially with respect to a central axis of the socket housing 110; the side wall of the annular boss 111 facing the tail of the socket housing 110 is provided with a second accommodating groove 112, and the second accommodating groove 112 extends along the circumferential direction relative to the central axis of the socket housing 110; the watertight connector further comprises: the second sealing ring 192, the second sealing ring 192 is disposed in the second accommodating groove 112, and the second sealing ring 192 is used for contacting with the first sidewall of the mounting panel.
The annular boss 111 is disposed at a specific position of the socket housing 110, and the annular boss 111 protrudes from an outer wall of the socket housing 110, so that an insertion depth can be limited in a watertight connector insertion process.
Wherein, the side wall of the annular boss 111 facing the tail part of the socket housing 110 is provided with a second accommodating groove 112, and the notch of the second accommodating groove 112 faces the rear side of the socket housing 110 along the axial direction of the socket housing 110; the second sealing ring 192 is disposed in the second accommodating groove 112, and the second sealing ring 192 may contact the first side wall of the mounting panel to seal the socket housing 110 and the first side wall of the mounting panel.
Further, the outer wall of the socket housing 110 is provided with a third receiving groove 113, and the third receiving groove 113 extends in a circumferential direction with respect to a central axis of the socket housing 110; the notch of the third receiving groove 113 faces the outside of the socket housing 110 in the radial direction of the socket housing 110; the watertight connector further comprises: the third sealing ring 193, the third sealing ring 193 sets up in the third holding tank 113, and the third sealing ring 193 is used for with the second lateral wall contact of installation panel, the first lateral wall and the second lateral wall of installation panel are perpendicular.
Wherein the third seal ring 193 is configured to contact the second side wall of the mounting panel to seal the socket housing 110 with the second side wall of the mounting panel.
In the present embodiment, the second seal ring 192 and the third seal ring 193 are provided to seal the mounting panel.
The first sealing ring 191, the second sealing ring 192, and the third sealing ring 193 may be sealing structures commonly used in the art, and the first sealing ring 191, the second sealing ring 192, and the third sealing ring 193 are respectively matched with corresponding accommodating grooves.
According to the watertight connector provided by the invention, the longitudinal sealing of the optical cable 140 is realized by arranging two-step glue filling, and compared with a mode of adopting O-shaped ring sealing on an optical contact pin, the watertight connector greatly reduces the volume of a product and is very beneficial to the miniaturization design of the product; meanwhile, each optical pin adopts an independent positioning structure through the design of the elastic piece 170, so that the butt joint precision of the optical pin assembly 130 is improved, the insertion loss of optical signals is effectively reduced, and the information transmission efficiency is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A watertight connector, comprising:
The socket comprises a socket shell, wherein a stop piece is arranged in the socket shell, a first end of the stop piece extends to the front end of the socket shell, and a pouring cavity is formed between a second end of the stop piece and the rear end of the socket shell;
An optical pin assembly disposed in the stopper;
one end of the optical cable penetrates through the pouring cavity and is connected with the optical pin assembly;
The filling cavity is filled with sealant and structural adhesive so as to realize sealing between the optical cable and the socket shell, the sealant and the structural adhesive are distributed along the axial direction of the filling cavity, and the structural adhesive is positioned at one side of the sealant, which is away from the stop piece; along the extending direction of the socket shell, the inner diameter of the filling cavity gradually decreases from front to back;
The watertight connector further comprises: filling glue and sealing the sleeve; the glue filling sealing sleeve is arranged in the filling cavity and is provided with a front end and a rear end, the outer wall of the front end of the glue filling sealing sleeve is connected with the inner wall of the socket shell, and the rear end of the glue filling sealing sleeve is exposed out of the rear end of the socket shell;
The first end of the stop piece extends to the front end of the socket shell, the second end of the stop piece extends to the middle of the socket shell, and the peripheral wall of the stop piece is matched with the inner wall of the socket shell; the peripheral wall of the glue filling sealing sleeve is matched with the inner wall of the socket shell; the port corresponding to the front end of the glue filling sealing sleeve extends to the middle of the socket shell and is in butt joint with the second end of the stop piece, and the rear end of the glue filling sealing sleeve penetrates through the rear end of the socket shell and is in butt joint with the rear end of the socket shell;
The sealant and the structural adhesive are arranged in the sealant filling sealing sleeve, the sealant is filled and sealed at the position of 10mm to 15mm in front of the sealant filling sealing sleeve, and the tail end of the sealant filling sealing sleeve is in a conical structure so as to fill and seal the structural adhesive; one end of the optical cable passes through the glue filling sealing sleeve and is connected with the optical pin assembly;
The watertight connector further comprises: a first limiting member; the first limiting piece is connected with the rear end of the glue filling sealing sleeve, and the side wall of the first limiting piece is in contact with the outer wall of the socket shell so as to limit the glue filling sealing sleeve.
2. A watertight connector according to claim 1, wherein,
At least part of the inner wall of the glue filling sealing sleeve is provided with a polishing layer, and the sealant is arranged between the optical cable and the polishing layer.
3. A watertight connector according to claim 1, wherein,
The outer wall of the glue filling sealing sleeve and/or the inner wall of the socket shell are/is provided with a first accommodating groove which extends along the circumferential direction relative to the central axis of the socket shell;
The watertight connector further comprises: the first sealing ring is arranged in the first accommodating groove, is arranged between the glue filling sealing sleeve and the socket shell, and is used for sealing between the glue filling sealing sleeve and the socket shell.
4. The watertight connector of claim 1, further comprising: an elastic member;
The stop piece is provided with a wire passing hole, and the optical pin assembly and the optical cable are arranged in the wire passing hole in a penetrating mode;
The elastic piece is arranged in the wire passing hole, the first end of the elastic piece is connected with the optical pin assembly, and the second end of the elastic piece is connected with the wire passing hole.
5. The watertight connector of claim 4 wherein the stop comprises: the front stop piece and the rear stop piece are distributed front and back along the axial direction of the socket shell;
The front stop piece is provided with a first through hole, the rear stop piece is provided with a second through hole, and the first through hole and the second through hole are coaxially arranged to form the wire passing hole;
the inner diameter of the second through hole is smaller than that of the first through hole so as to form a step surface between the first through hole and the second through hole; the second end of the elastic piece is connected with the step surface.
6. The watertight connector according to claim 4, wherein,
The inner wall of the socket shell is provided with a limiting boss, a limiting concave table and a second limiting piece, the limiting boss and the limiting concave table extend along the circumferential direction relative to the central axis of the socket shell, and the limiting concave table and the limiting boss are respectively arranged at the front end and the rear end of the stop piece along the extending direction of the stop piece;
The second limiting piece is detachably arranged in the limiting concave table, and the inner diameter of the second limiting piece is smaller than the outer diameter of the stopping piece so as to limit the front end of the stopping piece;
the inner diameter of the limiting boss is smaller than the outer diameter of the stop piece so as to limit the rear end of the stop piece.
7. A watertight connector according to any one of claims 1 to 6, characterized in that,
The outer wall of the socket shell is provided with an annular boss which extends along the circumferential direction relative to the central axis of the socket shell;
The side wall of the annular boss, which faces the tail part of the socket shell, is provided with a second accommodating groove which extends along the circumferential direction relative to the central axis of the socket shell;
the watertight connector further comprises: the second sealing ring is arranged in the second accommodating groove and is used for being in contact with the first side wall of the mounting panel.
8. The watertight connector according to claim 7, wherein,
The outer wall of the socket shell is provided with a third accommodating groove which extends along the circumferential direction relative to the central axis of the socket shell;
The watertight connector further comprises: the third sealing ring is arranged in the third accommodating groove and is used for being in contact with the second side wall of the mounting panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410239457.1A CN117826333B (en) | 2024-03-04 | 2024-03-04 | Watertight connector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410239457.1A CN117826333B (en) | 2024-03-04 | 2024-03-04 | Watertight connector |
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| CN117826333A CN117826333A (en) | 2024-04-05 |
| CN117826333B true CN117826333B (en) | 2024-06-25 |
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| CN118232077B (en) * | 2024-05-23 | 2024-09-20 | 中航光电科技股份有限公司 | Connecting assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208820132U (en) * | 2018-09-07 | 2019-05-03 | 江苏中天科技股份有限公司 | A kind of metal shell watertight rubber connector |
| CN111490398A (en) * | 2020-03-25 | 2020-08-04 | 中国电子科技集团公司第二十九研究所 | Cluster radio frequency connector with electromagnetic compatibility, sealing performance and floating performance |
| CN218886231U (en) * | 2022-12-15 | 2023-04-18 | 中天海洋系统有限公司 | Optical fiber connector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654693B (en) * | 2016-11-16 | 2019-08-13 | 中国电子科技集团公司第八研究所 | Optoelectric hybrid direction waterproof connector |
| CN208461095U (en) * | 2018-07-19 | 2019-02-01 | 侯马经济开发区日祥科技有限公司 | Watertight connector |
| CN117317694A (en) * | 2023-10-12 | 2023-12-29 | 中天海洋系统有限公司 | Watertight photoelectric connector |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208820132U (en) * | 2018-09-07 | 2019-05-03 | 江苏中天科技股份有限公司 | A kind of metal shell watertight rubber connector |
| CN111490398A (en) * | 2020-03-25 | 2020-08-04 | 中国电子科技集团公司第二十九研究所 | Cluster radio frequency connector with electromagnetic compatibility, sealing performance and floating performance |
| CN218886231U (en) * | 2022-12-15 | 2023-04-18 | 中天海洋系统有限公司 | Optical fiber connector |
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