CN111509452B

CN111509452B - Sealed connector and sealed contact thereof

Info

Publication number: CN111509452B
Application number: CN202010328615.2A
Authority: CN
Inventors: 邹宏飞; 刘向阳; 李立新; 全硒硼; 李卫可; 武学顺; 韩云钊; 张志中; 徐耕
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-09-28
Anticipated expiration: 2040-04-23
Also published as: CN111509452A

Abstract

The invention provides a sealing connector and a sealing contact element thereof, wherein the sealing contact element comprises large-diameter sections at two ends and a middle small-diameter section connected with the large-diameter sections at the two ends; the sealing body is positioned at the middle small-diameter section of the contact element and hermetically wraps the middle small-diameter section in the direction perpendicular to the plugging direction, and the projection of the sealing body in the plugging direction can at least cover the smaller maximum size of the two large-diameter sections in the direction perpendicular to the plugging direction; when the sealing contact piece is assembled in the corresponding mounting cavity, the sealing body is in sealing fit with the cavity wall of the mounting cavity. The sealing body cuts off the space where the two large-diameter sections are located, so that the spaces on the two sides cannot be communicated with each other, and the sealing effect that signals are transmitted only through the contact piece in the plugging direction and other substances are cut off by the sealing body is achieved.

Description

Sealed connector and sealed contact thereof

Technical Field

The invention relates to the technical field of connectors, in particular to a sealed connector and a sealed contact piece thereof.

Background

The existing connector needs to have sealing capabilities such as water resistance, dust resistance and the like when facing severe working conditions, so that not only are contact pieces arranged in a shell of the connector, but also a sealing structure for realizing water resistance and dust resistance is arranged, the contact pieces are sleeved in the sealing structure, and the sealing structure can separate the internal spaces of the front side and the rear side in the shell.

The conventional contact element is a sheet-type contact element 01 shown in fig. 1, a plug-in end 02 of the contact element is of a clip-type structure and can clamp and fit the contact element, and a terminal 03 at the other end is of a rolled structure and is used for a cable to extend into and be connected and fixed with the cable. The contact element is formed by blanking and bending processes, is widely applied due to low processing cost and high processing efficiency, and has the advantages that the material used by the plug-in end and the wiring end of the contact element with different structures at two ends is more than that used for connecting the middle part 04 between the plug-in end and the wiring end in order to ensure sufficient connection area, namely, the space occupied by the plug-in end 02 and the wiring end 03 in the direction vertical to the plug-in direction is larger than that occupied by the middle part in the same direction, so the contact element is changed into the structural form of the large-diameter sections at two ends and the small-diameter section in the middle after being processed and formed.

Because the existing sealing structure such as a sealing ring or a sealing gasket is assembled with the contact element by a method of inserting the contact element from one end and penetrating the sealing structure, the two ends of the sheet-type contact element are thick, the middle of the sheet-type contact element is thin, and the sheet-type contact element cannot be directly inserted into the sealing structure, so that the connector using the sheet-type contact element cannot realize the sealing isolation of the plugging end and the wiring end.

Disclosure of Invention

The invention aims to provide a sealing contact element, which can solve the problem that the existing connector using a sheet type contact element cannot be sealed;

another object of the present invention is to provide a sealed connector using the sealing contact, which has a good sealing effect.

In order to achieve the purpose, the sealing contact piece adopts the following technical scheme:

a sealed contact, comprising:

the large-diameter sections at two ends and the middle small-diameter section connecting the large-diameter sections at two ends;

the sealing body is positioned at the middle small-diameter section of the contact element and hermetically wraps the middle small-diameter section in the direction perpendicular to the plugging direction, and the projection of the sealing body in the plugging direction can at least cover the smaller maximum size of the two large-diameter sections in the direction perpendicular to the plugging direction;

when the sealing contact piece is assembled in the corresponding mounting cavity, the sealing body is in sealing fit with the cavity wall of the mounting cavity.

The beneficial effects are that: the sealing body is arranged on the middle small-diameter section for connecting the large-diameter sections at the two ends, so that the normal connection function of the large-diameter sections at the two ends cannot be influenced, the sealing body can be supported by the middle small-diameter section and is in sealing fit with the cavity wall of the installation cavity on the premise that the plugging function of the large-diameter sections at the two ends is not influenced, the shape of the middle small-diameter section is not required when sealing is realized, and the difficulty of the sealing contact element in structural design is reduced; meanwhile, the projection of the sealing body can at least cover the smaller of the maximum sizes of the two large-diameter sections, when the sealing body is installed in the installation cavity, the smaller of the maximum sizes can be separated from the other large-diameter section in the plugging direction by utilizing the structural characteristic of large coverage of the sealing body, so that the spaces where the two large-diameter sections are located are separated, the spaces on the two sides cannot be communicated with each other, and the sealing effect that the signal is transmitted only through the contact element in the plugging direction and the transmission of other substances can be separated by the sealing body is achieved.

Further, the sealing body is an injection molding piece and is solidified on the small-diameter section of the contact element; or the sealing body is of a split structure and fixedly assembled on the small-diameter section.

The beneficial effects are that: no matter the injection molding process or the split assembly process is adopted, the metal main body of the contact does not need to be processed, the original connection function of the metal main body cannot be damaged, and the two processes are high in processing efficiency and low in cost.

Furthermore, the sealing body is an elastic sealing body which can be elastically deformed, and sealing is realized by elastic extrusion of the sealing body and the corresponding sealing matching surface; or the sealing body is a rigid sealing body, and the sealing body and the inner wall surface of the mounting cavity are in sealing fit through a clamped sealing ring or filled sealing glue or interference fit.

The beneficial effects are that: when the sealing body is an elastic body, the sealing matching surface can be tightly squeezed through elastic deformation, and the sealing effect is good; when the seal body is the rigid body, other seal structures do not need to be added, and the seal body and the inner wall surface of the mounting cavity are in various seal matching modes, so that an operator can select the seal body according to working conditions, and the applicability is high.

Furthermore, the peripheral surface of the sealing body is a cylindrical surface, at least one of the sealing body and the inner wall of the installation cavity is provided with a convex ring which protrudes towards the other one of the sealing body and the installation cavity, and the sealing between the sealing body and the installation cavity is realized through the tight fit relation or elastic extrusion between the convex ring and the corresponding matching surface.

The beneficial effects are that: set up the bulge loop on the inner wall of seal and/or installation cavity, the bulge loop is little with the area of contact who corresponds between the fitting surface, and extrusion effort is bigger, and sealed effect is better.

Furthermore, the large-diameter section at one end of the contact element is a clamping opening type or insertion piece type insertion end, the large-diameter section at the other end of the contact element is a cylindrical wire pressing end, and the contact element is a piece type contact element formed by blanking and bending.

The beneficial effects are that: one end of the clamping opening or the inserting piece type end is a cylindrical wire pressing end, and the punching and bending forming is carried out, so that the processing cost is low, and the processing efficiency is high.

In order to achieve the purpose, the sealing connector adopts the following technical scheme:

a sealed connector, comprising:

an insulator having a mounting cavity;

the contact piece is installed in the installation cavity of the insulator along the plugging direction;

the contact element comprises two large-diameter sections and a middle small-diameter section which is connected with the two large-diameter sections;

the sealing body is positioned at the middle small-diameter section of the contact element and hermetically wraps the middle small-diameter section in the direction perpendicular to the plugging direction, and the projection of the sealing body in the plugging direction can at least cover the smaller largest section in the two large-diameter sections in the direction perpendicular to the plugging direction;

the sealing body is in sealing fit with the inner wall surface of the mounting cavity so as to separate the front side space and the rear side space of the mounting cavity.

Furthermore, the peripheral surface of the sealing body is a cylindrical surface, at least one of the sealing body and the inner wall of the installation cavity is provided with a convex ring which protrudes towards the other one of the sealing body and the installation cavity, and the sealing body and the installation cavity are sealed through the tight fit relation or elastic extrusion between the convex ring and the corresponding matching surface.

Furthermore, an inner flange which is convex along the direction perpendicular to the plugging direction is arranged on the wall of the mounting cavity, the sealing body is provided with a sealing ring surface opposite to the inner flange, and the sealing ring surface and the end surface of the inner flange are compressed and sealed.

The beneficial effects are that: the end face of the inner flange forms a sealing matching face matched with the sealing body, the sealing body can be seated on the inner flange, the matching faces of the inner flange and the sealing body are perpendicular to the communication direction of the spaces on two sides, namely the plug-in direction, the sealing structure is reliable, and the sealing effect is good.

Furthermore, a pressing piece is arranged in the sealing connector and used for pushing the contact piece along the extending direction of the contact piece so as to enable the sealing body to be pressed and sealed with the inner flange.

The beneficial effects are that: the setting compresses tightly the piece, compresses tightly the piece and can be used for improving the normal pressure that the seal acted on the inner flange to the seal application of force to improve the cooperation intensity of seal and inner flange, guarantee both sealed effect.

Furthermore, the insulator is a split structure buckled in the inserting direction, the two halves of the insulator are buckled to enclose the installation cavity, and one half of the insulator is provided with a stop structure in stop fit with the contact element to form the pressing element.

The beneficial effects are that: on the premise of keeping the original function of installing the contact element, the sealing body is compressed by the stop structure arranged on the insulator, so that the arrangement of redundant structures is reduced, and the cost is reduced.

Furthermore, the sealing connector also comprises an outer shell, the insulator is arranged in an inner cavity of the outer shell, and the outer shell comprises a locking structure for keeping the two halves of the insulator in a buckling state.

The beneficial effects are that: the outer shell is arranged, the insulator and the contact piece in the outer shell can be protected, meanwhile, the locking structure is arranged in the outer shell, the two half insulators can be in a relatively stable state, the half insulators can be used as pressing pieces to press the sealing body better, and the sealing reliability is guaranteed.

Furthermore, an outer convex edge is arranged on the outer peripheral surface of the first part of the insulator, and a stop table matched with the outer convex edge in a stop manner is arranged on the inner cavity wall of the outer shell; the outer peripheral surface of the second part of the insulator is provided with a clamping groove, a clamping spring in stop fit with the clamping groove is arranged in the inner cavity wall of the outer shell, the second part of the insulator can be pressed towards the first part when the clamping spring is in stop fit with the clamping groove, and a blocking platform on the inner cavity wall and the clamping spring jointly form a locking structure.

The beneficial effects are that: the stop platform is matched with the convex edge stop, and the clamp spring is matched with the clamping groove stop to limit the relative position of the shell and the insulator, so that the matching is reliable and the structure is simple.

Drawings

FIG. 1 is a schematic structural diagram of a conventional sheet-type contact;

FIG. 2 is a schematic structural view of embodiment 1 of the hermetic connector according to the present invention;

FIG. 3 is a schematic diagram of the sealed contact of FIG. 2;

FIG. 4 is a schematic view showing the structure of a sealing contact member in embodiment 2 of the sealed connector according to the present invention;

in the figure:

01-a sheet contact; 02-a plug end; 03-terminal; 04-a middle portion;

10-a sealed contact; 11-front large diameter section; 12-rear large diameter section; 121-punching; 13-a connecting segment;

14-a seal; 141-convex ring; 15-sealing the contact; 16-a seal;

20-an insulator; 21-a first part; 211-inner flange; 212-convex edge;

22-a second part; 221-positioning protrusions; 222-a card slot;

30-an outer shell; 31-a baffle table; 32-a clamp spring; 33-tail assembly.

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 sealed connector and sealed contact of the present invention are described in further detail below with reference to examples.

Example 1 of the sealed connector of the present invention: as shown in fig. 2 and 3, the sealed connector includes an outer housing 30, the outer housing 30 is in a long cylindrical shape and has an inner cavity, an insulator 20 is inserted into the inner cavity of the outer housing 30, and a contact for transmitting a signal or a power is disposed in the insulator 20. The structure of each part of the hermetic connector will now be described in detail.

The contact used in the sealed connector is a sealed contact 10 capable of dividing the inner space of the insulator 20 into a front part and a rear part, the sealed contact 10 includes a front large diameter section 11 plug-in end which is plug-in fitted with the adapter connector, a rear large diameter section 12 terminal which is connected with the cable, and a small diameter section 13 connected between the front large diameter section 11 and the rear large diameter section 12, and the front end and the rear end in the sealed contact are in the left-right direction shown in the figure. In the sealing contact element 10, the size of the large diameter section and the small diameter section refers to the size of the maximum width perpendicular to the plugging direction or the maximum coverage range, and in this embodiment, the space occupied by the front large diameter section 11 and the rear large diameter section 12 in the direction perpendicular to the plugging direction is larger than that occupied by the small diameter section 13, so that the whole sealing contact element 10 has a structure of being thick at two ends and thin in the middle.

The sealing contact element 10 in this embodiment is formed by punching and bending a plate, the front large diameter section 11 of the sealing contact element 10 is of a bayonet structure, and mainly comprises two opposite sheet bodies, the two sheet bodies can clamp the contact element in the adapter connector, the rear large diameter section 12 of the sealing contact element 10 is a cylindrical pressure line end which is formed by bending and rolling the sheet bodies, a cable adapted to the sealing connector can be sent into the cylindrical pressure line end, a through hole 121 for a screw to pass through is formed in the cylindrical wall of the cylindrical pressure line end, and an operator can use the pressure line screw to be screwed with the through hole 121 to crimp the cable on the cylindrical wall of the cylindrical pressure line end, so that the connection between the cable and the sealing connector is realized. The outer shell further comprises a tail assembly 33, after the cable is fixedly connected with the cylindrical crimping end in a pressing mode, the cable can penetrate through the tail assembly 33, the tail assembly 33 can fix the cable, the cable is prevented from being pulled under the action of external force and being separated from the cylindrical crimping end, meanwhile, the tail assembly 33 enables the rear half section of the outer shell and the sealing body to form a relatively closed space in a surrounding mode, the tail assembly is of an existing traditional structure, and detailed description is omitted.

Different from the conventional sheet-type contact element, a cylindrical sealing body 14 is further arranged on the sealing contact element 10, and the outer peripheral surface of the sealing body 14 is a cylindrical surface and is arranged on the small-diameter section 13 and positioned between the front large-diameter section 11 and the rear large-diameter section 12 of the sealing contact element. The section of the sealing body 14 is matched with the section of the inner cavity of the insulator 20, the sealing body is obtained by curing on the small-diameter section in an injection molding mode after a metal main body of the sealing contact element is processed, and the material used in the injection molding process is a material capable of generating elastic deformation after curing, so that the sealing body 14 on the sealing contact element is an elastic sealing body, the sealing body 14 wraps the small-diameter section 13 of the contact element after curing, and better sealing performance between the sealing body and the small-diameter section 13 can be kept.

The insulator in this embodiment is a split structure, which includes a first portion 21 and a second portion 22, and the two portions can wrap the entire sealing contact 10 when they are closed. The opening of the first portion 21 and the second portion 22 toward each other is a mounting opening for mounting the sealing contact 10. Inside the insulator 20, the sealing contacts 10 are arranged in pairs, and thus two separate mounting cavities are provided in the space of the same layer (in the horizontal direction or the vertical direction) in the insulator 20 to mount the sealing contacts 10, respectively. When the sealing contact 10 is installed in the insulator 20, the front large-diameter section 11 and the small-diameter section 13 of the sealing contact 10 are located in the first portion 21 of the insulator 20, the rear large-diameter section 12 of the sealing contact 10 is located in the second portion 22 of the insulator 20, and the sealing body 13 in the sealing contact 10 is in sealing fit with the first portion 21 of the insulator 20 to separate the front end space and the rear end space in the insulator 20.

Specifically, in the first portion 21 of the insulator 20, an inner flange 211 is provided on the wall of the mounting cavity, the end face of the inner flange 211 is one of the seal engagement faces with the seal body 14, the seal body 14 itself has a seal ring face facing the end face of the inner flange 211, and the seal body 14 can be pressed against the end face of the inner flange 211. The outer peripheral surface of the sealing body 14 is further provided with a convex ring 141 protruding towards the cavity wall of the mounting cavity, when the sealing body 14 is squeezed and deformed, the convex ring 141 can be tightly pressed against the cavity wall of the mounting cavity, and at the moment, the cavity wall of the mounting cavity is also used as one of the sealing matching surfaces matched with the sealing body 14.

A step-shaped positioning protrusion 221 is disposed in the second portion 22 of the insulator 20 at a position corresponding to the rear large-diameter section 12, the positioning protrusion 221 serves as a stop structure in the insulator 20 and can be in stop fit with the rear large-diameter section 12 of the sealing contact 10, when the second portion 22 is aligned with the first portion 21, the second portion 22 serves as a pressing member and can push the sealing contact to move towards the first portion 21, so that the sealing body 14 is pressed and sealed with the inner flange 211 in the first portion 21, and the second portion 22 provided with the positioning protrusion 221 also correspondingly constitutes a pressing member capable of pressing the sealing body 14 onto the inner flange 211.

In order to keep the insulator 20 and the outer shell 30 in fixed positions, a locking structure for locking the overall position of the insulator 20 is further provided between the inner cavity wall of the outer shell 30 and the insulator. The locking structure includes a stopper 31 corresponding to the first portion of the insulator 20, and a protruding edge 212 is provided on the outer peripheral surface of the first portion 21 of the insulator, the protruding edge 212 being capable of lockingly engaging with the stopper 31, thereby restricting the position of the first portion 21 in the front-rear direction. The locking structure further includes a snap spring 32 disposed at a position corresponding to the second portion 22 of the insulator 20, specifically, a housing ring groove is disposed on the outer housing 30, and a snap groove 222 is disposed on the second portion of the insulator 20. When the insulator 20 is installed in the outer shell 30, the C-shaped clamp spring 32 is installed in the clamping groove 222 of the insulator 20, then the clamp spring 32 and the insulator 20 are installed in the outer shell 30 together, when the clamping groove 222 is not aligned with the annular groove of the shell, the clamp spring 32 is limited by the wall of the inner cavity of the outer shell and is in a contraction state, and when the insulator 20 moves in place, the clamping groove 222 is aligned with the annular groove of the shell, and the clamp spring 32 expands in the radial direction and extends into the annular groove of the shell. At this time, the latch spring 32 is engaged with the latch groove 222 and the housing ring groove, so as to limit the position of the insulator 20 relative to the outer housing 30 and press the second portion 22 of the insulator 20 toward the first portion 21.

The sealing connector of the present invention is not limited to the technical solutions provided in embodiment 1 above, and the technical solutions provided in the following embodiments may also be adopted.

Example 2 of the sealed connector of the present invention: as shown in fig. 4, in this embodiment, a sealing body is arranged on a contact body made of a metal material to form a sealing contact with a sealing body, and the structure of the front large-diameter section 11 and the rear large-diameter section 12 of the sealing contact 15 in this embodiment is the same as that of the sealing contact in embodiment 1, except that in this embodiment, a convex ring is not provided on the outer surface of the sealing body 16, and the portion where the sealing body 16 is engaged with the insulator is still the outer circumferential surface of the sealing body, and at this time, an annular groove is provided on the inner wall surface of the insulator opposite to the sealing body, and a sealing ring is embedded in the annular groove, and the sealing ring can be tightly pressed and sealed with the outer circumferential surface of the sealing body 16.

Example 3 of the sealed connector of the present invention: the difference from the above embodiments is that the sealing body in this embodiment is a split structure, and includes two involutory split parts. The split parts of the sealing body are fastened on the small diameter section of the sealing contact piece after being involuted along the direction vertical to the plugging direction. Wherein, coating glue on the faying face of each split of seal and with the contact surface of path section, when treating that each split is to closing and glue solidifies, the seal can hold tightly on the path section of sealed contact, realizes the sealed cooperation of path section and seal, and the surface of seal can be crowded tight with the chamber wall of insulator simultaneously and is sealed to separate the space at connector both ends. In other embodiments, when the sealing body is formed by folding the segments, the connection mode between the segments may also be a screw connection mode, for example, screw holes are provided on the segments, when the segments are connected by screws, the screws sink into the screw holes so that the screws do not interfere with the cavity wall of the insulator, and the sealing body may be tightly pressed and sealed with the inner wall of the insulator through the end surface or the outer circumferential surface of the sealing body.

Example 4 of the sealed connector of the present invention: the difference from the above embodiment is that the sealing body in this embodiment is a rigid sealing body, which cannot elastically deform, when the sealing body and the insulator are in sealing fit with each other at the outer circumferential surface, a structure such as a sealing ring can be arranged on the inner wall surface of the insulator, and the sealing body can tightly press the sealing ring, thereby separating the front and rear side spaces in the insulator; the sealing between the sealing body and the insulator can also be realized by filling a sealing glue between the sealing body and the insulator or by interference fit. When the sealing body and the insulator are in sealing fit, the front end face or the rear end face is arranged on the insulator, the inner flange which is blocked with the sealing body in the front-rear direction is correspondingly arranged on the insulator, the sealing body is seated on the inner flange to realize the partition of the front-rear side space in the insulator, and the two matching modes do not need the sealing body to have elastic deformation capacity, but only need the projection area of the sealing body in the plugging direction to cover the front large-diameter section or the rear large-diameter section, wherein the projection area of the sealing body in the plugging direction is smaller. Of course, when the sealing body is made of a material without elastic deformation capability, the sealing body may be mounted on the contact main body made of a metal material by injection molding or by split fitting as described in the above embodiments.

Example 5 of the sealed connector of the present invention: the sealing contact piece is characterized in that the sealing body is arranged on the sealing contact piece, the sealing contact piece is arranged on the sealing contact piece, and the sealing contact piece is arranged on the sealing contact piece. In this embodiment, the sealing body may be made of a material that can elastically deform, or may be made of a material that does not have elastic deformation. In other embodiments, a press cap may be threaded into the insulator, with the press cap being threaded forward or backward. The pressing cap is arranged on one side, opposite to the sealing matching surface, of the sealing body, can push the sealing body tightly to ensure that sufficient positive pressure exists between the sealing body and the sealing matching surface, and is not limited to a scheme of pressing the sealing body by adopting an insulator.

Example 6 of the sealed connector of the present invention: the difference from the above embodiment is that in this embodiment, the portion where the sealing body is engaged with the insulator is still the outer circumferential surface of the sealing body, and at this time, a convex ring protruding toward the sealing body is provided on the inner wall surface of the insulator, and the convex ring is integrally formed with the insulator and has no elastic deformation capability, but the sealing body capable of elastic deformation can also be used for realizing the tight sealing between the sealing body and the insulator; in other embodiments, an annular groove is formed in the inner wall surface of the insulator, a sealing ring is embedded in the annular groove, the sealing ring can be tightly squeezed and sealed with the outer peripheral surface of the sealing body, and whether the sealing body can elastically deform or not is not limited at the moment.

Example 7 of the sealed connector of the present invention: the sealing body is made of an elastically deformable material, and the convex ring can be tightly squeezed and sealed with the front end face or the rear end face of the sealing body. Of course, the collar can also be arranged on the end face of the sealing body facing the inner flange.

Example 8 of the sealed connector of the present invention: the difference from the above-described embodiment is that the insulator of the sealed connector in this embodiment still comprises two abutting parts, and the outer shell is not provided outside the entire insulator. The openings of the first part and the second part of the insulator facing each other are mounting openings, an operator can respectively sleeve the two parts of the insulator on the front half part and the rear half part of the contact element, then the two parts of the insulator are closed, the insulator applies force to the sealing body along the plugging direction, and the sealing body and the insulator are tightly squeezed and sealed. At this time, the first part and the second part of the insulator are connected in a buckling mode, wherein one part is provided with a buckle, and the other part is provided with a bayonet. In other embodiments, the two parts of the insulator may be screwed together, i.e., the two parts may be provided with corresponding fastener holes, and the operator may use a threaded fastener to connect the two parts together.

Example 9 of the sealed connector of the present invention: the difference from the above embodiments is that the locking structure between the insulator and the outer shell in this embodiment includes an elastic claw disposed on the outer surface of the insulator, and a hole for the claw to be inserted into is disposed on the inner surface of the outer shell, and when the insulator moves in place relative to the outer shell, the elastic claw can fall into the hole of the outer shell and engage with the hole of the hole along the stop. The clamping hole on the outer shell penetrates through the inner side and the outer side of the outer shell to be arranged, and an operator can toggle the elastic clamping jaw and the hole edge of the clamping hole to be separated from each other outside the outer shell, so that the relative displacement of the outer shell and the insulator is not limited, and the outer shell and the insulator are unlocked.

Example 10 of the sealed connector of the present invention: the difference from the above embodiment is that the connector in this embodiment is a switching connector, and two large-diameter sections of the contact are both of the insertion pieces, and are respectively in insertion fit with corresponding adapter connectors to perform a switching function, and the connector is not limited to a scheme in which one end is in insertion fit with the adapter connectors and the other end is connected with a cable. In other embodiments, the large-diameter section of the contact element can also adopt a structure of a pin, a jack and the like.

The structure of the sealing contact in the present invention is the same as that of the sealing contact in the above-described embodiment of the sealing connector, and therefore, description about the embodiment of the sealing contact is not 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

1. A sealed connector, comprising:

an insulator having a mounting cavity;

it is characterized in that the preparation method is characterized in that,

the sealing body is in sealing fit with the inner wall surface of the mounting cavity to partition the spaces on the front side and the rear side of the mounting cavity, and the sealing body is an injection molding piece and is solidified on the small-diameter section of the contact element; or the sealing body is of a split structure and fixedly assembled on the small-diameter section, the sealing body is an elastic sealing body capable of elastically deforming, and sealing is realized through elastic extrusion of the sealing body and the corresponding sealing matching surface; or the sealing body is a rigid sealing body, and the sealing body is in sealing fit with the inner wall surface of the mounting cavity through a clamped sealing ring or filled sealing glue or interference fit; an inner flange which is convex along the direction vertical to the plugging direction is arranged on the wall of the mounting cavity, the sealing body is provided with a sealing ring surface opposite to the inner flange, the sealing ring surface and the end surface of the inner flange are pressed and sealed, a pressing piece is further arranged in the sealing connector and used for pushing the contact piece along the extending direction of the contact piece so as to enable the sealing body and the inner flange to be pressed and sealed, and an interval space is formed between the rear end of the sealing body and the front end of the rear large-diameter section; the insulator is a split structure buckled in the inserting direction, the two halves of the insulator are buckled to form the installation cavity, one half of the insulator is provided with a stop structure matched with the stop of the contact piece to form the pressing piece, a step-shaped positioning bulge is arranged at a position corresponding to the rear large-diameter section in the second part of the insulator and is positioned behind the rear large-diameter section, the positioning bulge is used as the stop structure in the insulator and can be matched with the rear end of the rear large-diameter section of the sealing contact piece in a stop mode, when the second part is matched with the first part, the second part is used as the pressing piece and can push the sealing contact piece to move towards the first part, so that the sealing body is pressed and sealed with the inner flange in the first part, and the second part provided with the positioning bulge correspondingly forms the pressing piece capable of pressing the sealing body on the inner flange; the sealing connector also comprises an outer shell, the insulator is arranged in the inner cavity of the outer shell, the outer shell comprises a locking structure for keeping the two halves of the insulator in a buckling state, an outer convex edge is arranged on the outer peripheral surface of the first part of the insulator, and a baffle table matched with the outer convex edge in a blocking manner is arranged on the wall of the inner cavity of the outer shell; the outer peripheral surface of the second part of the insulator is provided with a clamping groove, a clamping spring in stop fit with the clamping groove is arranged in the inner cavity wall of the outer shell, the second part of the insulator can be pressed towards the first part when the clamping spring is in stop fit with the clamping groove, and a blocking platform on the inner cavity wall and the clamping spring jointly form a locking structure.

2. The sealed connector of claim 1, wherein the outer peripheral surface of the sealing body is a cylindrical surface, and at least one of the sealing body and the inner wall of the mounting cavity is provided with a protruding ring protruding toward the other of the sealing body and the mounting cavity, and the sealing between the sealing body and the mounting cavity is realized by a tight fit relationship between the protruding ring and the corresponding mating surface or by elastic compression.

3. The sealed connector of claim 1 or 2, wherein the large diameter section of the contact member is a bayonet type or a tab type insertion end, the large diameter section of the contact member is a cylindrical terminal, and the contact member is a tab type contact member formed by punching and bending.