CN206480825U - Electric connector - Google Patents

Abstract

A kind of electric connector, including insulating body, several terminals docked with butt-jointed electric connector and the metal shell being fixed on outside the insulating body being fixed in the insulating body, the insulating body and metal shell enclose jointly set the confession butt-jointed electric connector to form one end open insertion between plug hole, the insulating body includes base portion and extends the hyoplastron formed forward by base portion front end, the metal shell periphery is installed with external insulation shell, the electric connector is formed with rear end face, the rear end face of the electric connector is in external insulation shell, the accepting groove caved inward is formed with the seaming position of metal shell and insulating body, by realizing the integral waterproofing effect of electric connector in encapsulating processing in accepting groove.

Description

Electric connector

Technical field

The utility model is related to a kind of electric connector, more particularly to a kind of electric connector with water resistance.

Background technology

In the past, USB（Universal Serial Bus, abbreviation USB）Used by universal masses, and with It is the faster USB3.0 transmission standards of transmission speed now that USB2.0 transmission standards, which are developed to,.

The external form of the USB Type-C electric connectors of right latest generation, structure, termination contact mode, numbers of terminals, each end The distance of son（Pitch）And the distribution of each terminal（Pin Assignment）It is all completely different with current USB electric connectors. USB Type-C electric connector for socket includes outside the two rows flat board terminal being arranged on glue core, glue core covered with outer iron The structures such as shell.The glue core of general USB Type-C electric connector for socket is so that multi-piece type colloid is mutually assembled injection molding Into, and respectively in connection with row's flat board terminal under row's flat board terminal, a row on a row in each colloid.

However, nowadays electronic product function make rapid progress epoch, water-proof function necessarily electronic product development become Gesture.Existing USB Type-C electric connector for socket is because its number of terminals is more, each terminal spacing is small and two rows terminal is in mirror The features such as face is symmetrical, causes to be molded the technique completion for combining assembling in existing processing procedure often by Multi-step injection molding.So repeatedly Repeatedly assembling will certainly produce more bonding cracks in each intermodule for shaping, therefore for USB Type-C waterproofing design difficulty Can be equivalent with non-conventional convention connectors.Waterproofing design for USB Type-C is considered actual increasingly complex, is more difficult. Particularly in the waterproofing design of USB Type-C electric connector for socket back-end locations.Therefore, a water resistance how is designed It is superior, while constitutionally stable USB Type-C products, are the problem of related dealer must think deeply now place.

In view of this, it is necessary to which conventional electric connector structure is improved, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of electric connector, and the electric connector has water resistance, and overall knot Structure stabilization, good integral strength, processing procedure are simple.

To realize above-mentioned utility model purpose, the utility model provides a kind of electric connector, including insulating body, fixation Several terminals docked with butt-jointed electric connector and the metal being fixed on outside the insulating body in the insulating body Shell, the insulating body and metal shell enclose jointly set the confession butt-jointed electric connector to form one end open insertion to plug hole Between, the insulating body includes base portion and extends the hyoplastron formed forward by base portion front end, and each terminal includes exposing Contact-segment outside the hyoplastron surface of insulating body, Butt Section and the company extended along the base portion rear end of insulating body outside insulating body Connect the contact-segment and Butt Section and be at least partly embedded in the linkage section in the base portion of insulating body, the metal shell periphery External insulation shell is installed with, the electric connector is formed with rear end face, and the rear end face of the electric connector is in outside external insulation shell, metal The accepting groove caved inward is formed with the seaming position of shell and insulating body.

As further improvement of the utility model, the external insulation shell is formed with rear end face, the accepting groove include by The rear end face of external insulation shell caves inward the seal groove to be formed in the junction of external insulation shell and metal shell.

As further improvement of the utility model, the insulating body is formed with rear end face, the accepting groove include by The rear end face of the insulating body in holding tank from the junction of insulating body and metal shell to grafting concave end.

As further improvement of the utility model, the insulating body is formed with rear end face, the accepting groove include by The rear end face of the insulating body and the rear end of metal shell are recessed to inserted terminal because of the junction of metal shell and external insulation shell Sunken holding tank.

As further improvement of the utility model, the accepting groove is included by the rear end of the metal shell because of metal Shell and external insulation shell at least up and down holding tank from the junction of both sides to grafting concave end.

As further improvement of the utility model, the accepting groove is in an integral ring-shaped groove-like around external insulation shell The junction of rear end, metal shell rear end and insulating body rear end one week.

As further improvement of the utility model, the back-end location of the insulating body is formed through through hole.

As further improvement of the utility model, the cross-sectional circumference for each terminal being exposed in the through hole is accommodated In in the through hole.

As further improvement of the utility model, on fore-and-aft direction, the rear end face of insulation shell is interface, institute in addition Interface is stated through through hole in the overall length of left and right directions, and the throughhole portions on front side of interface connect with the accepting groove It is logical.

As further improvement of the utility model, the terminal includes row's terminal group and lower row's terminal group, described Electric connector, which also includes, to be embedded in insulating body and positioned at the barricade between upper row's terminal group and lower row's terminal group, The arrangement mode of the contact-segment of each terminal of upper row's terminal group and the contact-segment of each terminal of lower row's terminal group meets USB Type C standards.

The beneficial effects of the utility model are：By the back-end location formation accepting groove in electric connector, coordinate electrical connection The through-hole structure of device rear end, imposes encapsulating processing, to realize the integral waterproofing effect of electric connector.

Brief description of the drawings

Fig. 1 is the stereogram of the utility model electric connector.

Fig. 2 is the stereogram that the utility model electric connector is seen from another angle.

Fig. 3 is the part isometric exploded view of the utility model electric connector, is divided which show external insulation shell from metal shell Stereogram from after.

Fig. 4 be the utility model electric connector remove external insulation shell after part isometric exploded view, which show metal outside Shell from insulating body separation after stereogram.

Fig. 5 is that the utility model electric connector removes the three-dimensional exploded view after external insulation shell, which show metal shell, outside Insulator and metalwork and stereogram of the terminal mould splits from after.

Fig. 6 is stereogram of the first terminal module with Second terminal module of the utility model electric connector.

Fig. 7 is three-dimensional exploded view figure of the first terminal module with Second terminal module of the utility model electric connector, its The row's of illustrating terminal group, upper row's insulator, lower row's terminal group, lower row's insulator, barricade be separated from each other after stereogram.

Fig. 8 is the schematic cross-sectional view of electric connector shown in Fig. 2.

Fig. 9 is the side view of sectional view described in Fig. 8.

Figure 10 is the upward view of the utility model electric connector.

Figure 11 is the rearview of the utility model electric connector.

Figure 12 is the stereogram that the utility model electric connector is seen from another angle.

Figure 13 is the top view of the utility model electric connector.

Figure 14 is the enlarged drawing of the structure in dotted line circle in Figure 13.

Figure 15 is the three-dimensional exploded view of the external insulation shell of the utility model electric connector.

Figure 16 is the stereogram of the external insulation shell of the utility model electric connector.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings and specific implementation The utility model is described in detail example, and the convenience for statement relates to direction, please without exception join herein with accurately According to Fig. 1, itself and butt-jointed electric connector（Banjo, it is not shown）Butt end be front end, the other end is rear end.

Refer to shown in Fig. 1 to Figure 16, the electric connector 100 that the utility model is disclosed can sink board-like installed in docking Circuit board（It is not shown）Go up and cooperation can be docked with butt-jointed electric connector.The electric connector 100 includes insulating body 10, buried Upper row's terminal group 21 and lower row's terminal group 22 in the insulating body 10, the barricade being embedded in the insulating body 10 30 and the metalwork 40 and metal shell 50 that are fixed on outside the insulating body 10.The electric connector in the utility model 100 be also equipped be set in the main external insulation shell 60 for playing waterproof action in the outside of the metal shell 50, be fixed on it is described it is outer absolutely Mainly rising with docking the fixture 70 of circuit board fixation and being fixed on the front end of external insulation shell 60 periphery on edge shell 60 The main sealing ring 80 for playing waterproof action.Insulating body 10, metal shell 50 and the external insulation shell 60 of the electric connector 100 are common With enclose set the confession butt-jointed electric connector to form one end open insertion plug hole 1000.

Refer to shown in Fig. 4, the insulating body 10 includes base portion 11 and extends what is formed forward by the front end of base portion 11 Hyoplastron 12.The end hyoplastron that the hyoplastron 12 includes the basilingual plate 121 of the close front end of base portion 11 and is connected with the basilingual plate 121 122。

Refer to shown in Fig. 4 and Fig. 5, the metalwork 40 is in cuboid tubulose, and it, which is sheathed on the periphery of basilingual plate 121, is used for Earth shield function, the both sides of metalwork 40, which are torn, is extended with the elastic contact chip 41 that correspondence is contacted with the buckle of barricade 30.

Refer in Fig. 4, Fig. 5 and Figure 11, the utility model, the metal shell 50 is substantially in cuboid tubulose, it is wrapped Include the upper plate body 511 being oppositely arranged and lower body 512 and connect the two of the upper plate body 511 and the both side edges of lower body 512 respectively Individual side plate body 513.Each end edge of side plate body 513 extends back and bending is formed with button in the horizontal direction in lateral margin up and down Hold portion 514.The holding part 514 positioned at the same side of electric connector 100 is provided with two and is oppositely arranged, the holding part 514 Corresponding to the correspondence position that the rear end of insulating body 10 is clamped on thickness direction.In the utility model, the hyoplastron 12 is protruded out forward Go out outside metal shell 50, in other words, length of the metal shell 50 in plug hole 1000 is less than butt-jointed electric connector Insertion depth.In addition, on the thickness direction of hyoplastron 12, the front-end edge of the front-end edge and hyoplastron 12 of the external insulation shell 60 is basic Flush, in plug orientation, the front-end edge of the external insulation shell 60 protrudes out to the front end of the front-end edge of metal shell 50, each end The front-end edge of son protrudes out to the front end of the front-end edge of metal shell 50, and the front-end edge of each terminal is located at the front-end edge of external insulation shell 60 Between the front-end edge of metal shell 50.In the utility model by metal shell 50 do it is short and small design in favor of with external insulation shell 60 Cooperation fixing simultaneously ensure bond strength, can ensure that the overall width and thickness of electric connector 100 are smaller in addition.

Refer to shown in Fig. 4 to Fig. 7, the insulating body 10 arranges upper in terminal group 21 including injection molding on described The lower insulator 102 and outer insulator 103 of insulator 101, injection molding in lower row's terminal group 22 and shielding part 30. Row's terminal module 110 in upper row's terminal group 21 and the formation of upper insulator 101, lower row's terminal group 22, barricade 30 and Lower insulator 102 is collectively forming lower row's terminal module 120.The upper insulator 101 and lower insulator 102 are referred to as interior insulation body （Do not indicate）.Upper row's terminal module 110 and lower row's terminal module 120 are collectively forming terminal assemblies 130 after being completed（Ginseng Fig. 5）.In forming the outer insulator 103 by injection molding again on the terminal assemblies 130.

Refer to shown in Fig. 7, in the present embodiment, upper row's terminal group 21 includes some upper row's signal terminals 211, at least Arranged on one and ground terminal 213 is arranged on power supply terminal 212 and at least one.Some upper row's signal terminals 211 include some high to upper row Row's low speed signal terminal 2113 in fast signal terminal 2111/2112 and a pair.It is seen by the forward sight of electric connector 100, by left side extremely The terminal block row on right side are followed successively by first upper row's ground terminal 213（Gnd）, first pair of upper row's high-speed signal terminal 2111（TX1 +-, differential signal terminal, to transmit high-speed signal）, first upper row's power supply terminal 212（Power/VBUS）, one upper arrange Function inspection terminal 214（CC1, function and identification CABLE function to detect positive anti-plug）, row's low speed signal end on a pair Son 2113（D+-, differential signal terminal, to transmit low speed signal）, a upper row expand terminal 215（SBU1, can increase definition Used into other purposes）, second upper row's power supply terminal 212（Power/VBUS）, second pair of upper row's high-speed signal terminal 2111 （RX2+-, differential signal terminal, to transmit high-speed signal）And second upper row's ground terminal 213（Gnd）.The upper row end Subgroup 21 is rearranged by 12 butt and meets transmission USB Type-C signals altogether.

Refer to shown in Fig. 7, in the present embodiment, the number of terminals of lower row's terminal group 22 is identical with upper row's terminal group 21, Lower row's terminal group 22 also once arranges power supply terminal 222 including some lower row's signal terminals 221, at least and at least once row connects Ground terminal 223, some lower row's signal terminals 221 include some low to lower row's high-speed signal terminal 2211/2212 and a pair of lower rows Fast signal terminal 2213.It is seen by the forward sight of electric connector 100, is followed successively by by lower row's terminal block row on right side to left side under first Row's ground terminal 223, row's high-speed signal terminal 2211 under first pair, row's power supply terminal 222, a lower row function are detectd under first Survey terminal 224, a pair lower row's low speed signal terminals 2213, under one row expand terminal 225, row's power supply terminal 222 under second, Arranged under second pair and ground terminal 223 is arranged under high-speed signal terminal 2211 and second.It is seen by the forward sight of electric connector 100, lower row Terminal group 22 and upper row's terminal group arranged opposite about 22, and left and right opposed alignment sets, that is, lower row's terminal group 22 with it is upper Terminal group 22 is arranged point-symmetrically, so as to realize positive and negative plugging function.

It refer to described in Fig. 4 to Fig. 6, each terminal of upper row's terminal group 21 and each terminal shape of lower row's terminal group 22 It is roughly the same, wherein each terminal includes exposing the contact-segment 201 held outside the surface of hyoplastron 122 of insulating body 10, edge insulation originally The base portion 11 of body 10 extends the Butt Section 203 outside insulating body 10 and connects contact-segment 201 and Butt Section 203 and at least portion Divide the linkage section 202 being embedded in the base portion 11 and basilingual plate 121 of insulating body 10.The contact-segment 201 is used for docking electricity Connector is docked, and Butt Section 203 is used for docking circuit board contacts.

It refer to shown in Fig. 4, Fig. 5, Fig. 8 and Fig. 9, the barricade 30 is embedded in insulating body 10 and is located on described Arrange is used for bonding function in the middle of terminal group 21 and lower row's terminal group 22.The end edge of barricade 30 extends back insulation Body 10 is formed with the welding foot 31 with docking circuit board fixation.

Refer to shown in Fig. 6 to Fig. 9, in the present embodiment, the upper insulator 101 includes spaced and separately positioned Leading portion portion 1011, center section part 1012 and back segment portion 1013.The leading portion portion 1011 is at least partially disposed at the end position of hyoplastron 122, institute State center section part 1012 and be at least partially disposed at the position of basilingual plate 121, the back segment portion 1013 is at least partially disposed at the position of base portion 11.Institute State leading portion portion 1011, center section part 1012 and back segment portion 1013 three positions fix row's terminal group 21 from the front to the back respectively so that Position of each terminal in the row's of going up terminal group 21 during processing procedure is obtained stable, so as to ensure each terminal in upper row's terminal 21 Flatness, spacing and position are controllable.

Refer to shown in Fig. 6 to Fig. 9, in the present embodiment, the lower insulator 102 is in a monolithic（That is single type）, under The correspondence of insulator 102 is embedded wherein by lower row's terminal group 22 and barricade 30.The lower insulator 102 is formed with some convex The boss structure 1020 gone out, it is described convex after upper row's terminal module 110 is assembled with lower row's terminal module about 120 The lower surface of the correspondence of platform structure 1020 row of being held in terminal group 21（Join Fig. 5, Fig. 8 and Fig. 9）.The boss structure 1020 is under The surface of insulator 102 upwardly extends and protruded out on the upper surface of barricade 30.Direction, 1020 points of the boss structure from the front to the back For front boss structure 1021, middle boss structure 1022 and rear boss structure 1023.The front boss structure 1021, middle boss structure 1022 and rear boss structure 1023 be spaced along the longitudinal direction.The front boss structure 1021 is provided with several, and along docking The plug orientation of electric connector is extended.Each front boss structure 1021 is along the width of electric connector 100（That is hyoplastron 12 Width）It is arranged at intervals, after upper row's terminal module 110 is assembled with lower row's terminal module about 120, it is ensured that Outer insulator 103 and upper row's terminal module 110 and the conjugation of lower row's terminal module 120 when injection forms outer insulator 103, together Shi Yike improves the mobility for the thermosol material to form outer insulator 103.

Refer to shown in Fig. 5 to Fig. 7, in the present embodiment, the middle boss structure 1022 and rear boss structure 1023 are along electricity Elongated tabular on the width of connector 100.The middle boss structure 1022 and the upper surface of rear boss structure 1023 It is protruding upward to be formed with several limited blocks 1024.Several on the middle boss structure 1022 and rear boss structure 1023 Limited block 1024 on the width of electric connector 100 in being spaced and form some spacer regions 1025.When upper row's terminal module Correspond to and accommodate and spacing upper row end respectively after 110 assemble with lower row's terminal module about 120, in each spacer region 1025 A wherein terminal in subgroup 21, is further ensured that between upper row's terminal module 110 and lower row's terminal module 120 in assembling When in the accurate positioning on the width of electric connector 100.

Refer to shown in Fig. 5 to Fig. 9, in the present embodiment, when upper row's terminal module 110 and lower row's terminal module After 120 assemblings.In on fore-and-aft direction, the leading portion portion 1011 of the upper insulator 101 is located at front boss structure 1021 and middle boss Between structure 1022, the center section part 1012 of the upper insulator 101 be located at middle boss structure 1022 and rear boss structure 1023 it Between.The rear end part of upper row's terminal module 110（That is back segment portion 1013）With being pasted above and below at least part of rear boss structure 1023 Close, the lower surface of the leading portion portion 1011 and center section part 1012 is fitted with the correspondence position of the upper surface of barricade 30, with realization The correspondence of insulator 101 is fitted positioning with lower insulator 102 in above-below direction.The correspondence of upper insulator 101 and lower insulator 102 Between do not fitted (i.e. fore-and-aft direction delocalization) in fore-and-aft direction, be embodied in, the leading portion portion 1011 of upper insulator 101, in Section portion 1012 and the correspondence of back segment portion 1013 and front boss structure 1021, middle boss structure 1022 and the rear boss of lower insulator 102 Structure 1023 is not fitted in fore-and-aft direction.It is so designed that, the row's of may be such that terminal module 110 and lower row's terminal module 120 During assembling, the positioning of fore-and-aft direction is only realized by material strip position, fore-and-aft direction anchor point quantity is reduced, to ensure positioning accurate It is accurate.In addition, the above-mentioned position do not fitted means that gap can be reserved and filled by outer insulator 103, it can equally ensure injection Outer insulator 103 and upper row's terminal module 110 and the conjugation of lower row's terminal module 120 when forming outer insulator 103, while also The mobility for the thermosol material to form outer insulator 103 can be improved.

Refer to shown in Fig. 7 and Fig. 8, in the present embodiment, the back segment portion 1013 of the upper insulator 101 is used for the row of fixing The rear end part of the linkage section 202 of terminal group 21, the back segment portion 1013 is including horizontal-extending substantially in cuboid tabular Extension 10131 and along the rear end of extension 10131 be downwardly extending substantially be in cuboid strip fixed part 10132.Institute State and the pendulous tank that terminal is used for each Butt Section 203 of the row's of shortening terminal group 21 is buried in fixed part 10132, docking can be prevented Section 203 is deformed upon when being disconnected with corresponding material strip, it is ensured that the flatness of Butt Section 203.

Refer to shown in Fig. 3 to Fig. 5, Fig. 8, Fig. 9 and Figure 14, in the present embodiment, the back segment portion of the upper insulator 101 About 1013 are formed through through hole 1001.In addition the back segment portion 1013 is located at the position rear end of through hole 1001 and also runs through shape up and down Into there is peep hole 1002.In the utility model, the through hole 1001 and peep hole 1002 also run through whole insulating body 10 up and down Back-end location（Run through the correspondence position of outer insulator 103 up and down simultaneously）.The docking of each terminal of lower row's terminal group 22 203 at least part of section expose through the peep hole 1002 (i.e. from top to bottom it is observed that hole 1002 it is visual it).

Refer to shown in Fig. 7 and Fig. 8, through hole described in the upper surface covering part of the back-end location of the lower insulator 102 1001 and upper exposed face 1026 is formed by the coverage rate（As upper surface part of the rear boss structure 1023 at end edge Point）.Lower surface extends outside insulator 103 and forms lower exposed face 1027 at the end edge of the lower insulator 102.On described Die compresses sealing when exposed face 1026 and lower exposed face 1027 are used to be molded outer insulator 103.Certainly in other embodiments, The upper exposed face 1026 can also be formed at upper insulator 101, for example, the upper insulator 101 that can be formed at through hole 1001 Upper surface.The upper exposed face 1026 and lower exposed face 1027 be arranged in parallel with docking circuit board place face.In the utility model, This described upper exposed face 1026 is overlapping in the projection on above-below direction with lower exposed face 1027, certainly in other instances, described Upper exposed face 1026 and lower exposed face 1027 are in the projection on above-below direction can partly overlap.

Incorporated by reference to shown in Fig. 2, Fig. 6 to Figure 10, in the present embodiment, at the rear end lower surface both sides of the upper insulator 101 Respectively it is formed with sealing face 1014（Specific ginseng Fig. 2, Figure 10）.The sealing face 1014 includes by the fixed part of upper insulator 101 10132 lower surface（Recline docking circuit board one side surface）The electrolysis formed at the both sides of upper row's terminal group 21 1016, and show up 1015 positioned at the side of the front end of the electrolysis 1016 of upper insulator 101, the side, which is shown up, 1015 is located at lower row Outside the both sides of the Butt Section 203 of terminal group 22.Die compresses sealing when the sealing face 1014 is used to be molded outer insulator 103. In the present embodiment, the sealing face 1014（That is electrolysis 1016, side shows up 1015）It is be arranged in parallel with docking circuit board place face. With reference to shown in Fig. 2, Fig. 9 and Figure 10, the lower exposed face 1027 is less than electrolysis 1016, and the electrolysis 1016 is shown up less than side 1015.Exposed with the Butt Section 203 for each terminal for causing lower row's terminal group 22 from the both sides of insulating body 10（I.e. from connector Expose 100 both sides）And be in communication with the outside, it is easy to penetrating cooling during welding, the gas impurities produced by discharge welding in time are protected Demonstrate,prove welding quality.In addition, the rear end face of the fixed part 10132 of the upper insulator 101 is formed with for being molded outer insulator 103 When die compress the rear front cover 1017 of sealing.

Refer to shown in Fig. 6, Fig. 8 to Figure 13, the cross-sectional circumference of each terminal of upper row's terminal group 21 is contained in In the through hole 1001, to enable each terminal of upper row's terminal group 21 and the junction of upper insulator 101 to do complete filling Glue processing（Fill marine glue）, improve water resistance.In the present embodiment specifically, the through hole 1001 in strip by upper row's terminal Extended on the outside of the leftmost side terminal of group 21 on the outside of the terminal of the rightmost side.In the utility model, in the width side of electric connector 100 Upwards, the length of the exposed face is equal to the length of through hole 1001.

Refer to shown in Fig. 8 to Figure 15, in the utility model, the external insulation shell 60 is substantially in cuboid tubulose, wherein Between formed receiving space 600.External insulation shell 60 includes the upper plate portion 611 being oppositely arranged and lower board unit 612 and connects described respectively Two side plates 613 of upper plate portion 611 and the both side edges of lower board unit 612.The internal face of the external insulation shell 60 is formed with stage portion 614 and stop surface 6141 is formed, on fore-and-aft direction, each upper plate portion 611, lower board unit 612 and the side plate of the external insulation shell 60 The fore-end in portion 613 is thicker than rear end part.The correspondence of stop surface 6141 and the front-end edge of metal shell 50 are supported, and are realized outer The assembling of insulation shell 60 and metal shell 50 is spacing.

In the utility model, the external insulation shell 60 is done into short and small design, coordinates the structure of stage portion 614 of external insulation shell 60 Assembling positioning is realized, the thicker part of external insulation shell 60 of plate face is reserved in the front-end edge of metal shell 50 and forms annular fixation Groove 615 is used to be equipped with sealing ring 80, it is ensured that the overall width of whole electric connector 100, thickness are smaller, and respective outer side edges are set Meter rationally, it is exquisite, stably, manufacture craft is simple.

Refer to shown in Fig. 1, Fig. 8 and Figure 12, in the utility model, the front end peripheral recesses of external insulation shell 60 are formed with Annular fixing groove 615, the fixing groove 615 is located at the front end of stop surface 6141 of above-mentioned stage portion 614 (i.e. positioned at external insulation shell 60 The thicker position of front end plastic cement thickness).The bottom surface of fixing groove 615 is formed with some poroid location divisions through external insulation shell 60 6151.The sealing ring 80 is fixed on by post forming in the fixing groove of external insulation shell 60, and the location division 6151 is used to increase Encrypt seal 80 and the fixing power of external insulation shell 60.Certainly in other embodiments, the fixing groove 615 can be designed to by solid Determine the bottom surface of groove 615 further to cave inward the groove-like not through external insulation shell 60 to be formed.

Refer to shown in Fig. 8, Fig. 9, Figure 11 and Figure 15, the external insulation shell 60 is formed with rear end face 601.The external insulation The rear end face 601 of shell 60 caves inward in the junction of external insulation shell 60 and metal shell 50 and is formed with seal groove 610.This practicality In new, the seal groove 610 is located on the side plate 613, certainly in other embodiments, in the entirety of outer insulation shell 60 In the case that thickness is enough, the seal groove 610 can also be formed at upper plate portion 611 and/or the rear end of lower board unit 612 simultaneously.

Refer to shown in Fig. 8, Fig. 9 and Figure 12, the rear end of insulating body 10 and the rear end of metal shell 50 are corresponding and outer exhausted The upper plate portion 611 of edge shell 60 and the adjacent position of lower board unit 612 are formed with the holding tank 150 connected with the seal groove 610.It is described Holding tank 150 is actual to do the common shape of end edge of depression treatment complexed metal shell 50 by the rear end correspondence position of insulating body 10 Into.In the utility model, the holding tank 150 is with the one integral ring-shaped groove of formation of seal groove 610 after external insulation shell 60 The junction at end, the rear end of metal shell 50 and the rear end of insulating body 10 one week, by the seal groove 610 and holding tank 150 Encapsulating processing is inside done, to realize the waterproof effect of the rear end correspondence position of electric connector 100.In the utility model, the holding tank 150 are referred to as accepting groove with seal groove 610.

Certainly in other embodiments, the holding tank 150 also can be formed only by metal shell 50, actually may be designed to, By the end edge of at least upper plate body 511 of metal shell 50 and lower body 512 be designed to compared with external insulation shell 60 rear end face 601 more It is forward（That is at least upper plate body 511 of metal shell 50 and the end edge of lower body 512 is retracted to form holding tank 150 forward）, from And form holding tank 150.Certainly in other embodiments, the holding tank 150 also can be only by insulating body 10 and external insulation shell 60 formed, actually may be designed to, by with the adjacent of metal shell 50（That is junction）Insulating body 10 and external insulation shell 60 to Sunken inside formation holding tank 150.Actual only to need to meet, the holding tank 150 is formed in insulating body 10, gold with seal groove 610 The junction of category shell 50 and external insulation shell 60 is used to accommodate marine glue, to realize the waterproof effect of electric connector, as Holding tank 150 is specifically formed or many with seal groove 610 by one in insulating body 10, metal shell 50 and external insulation shell 60 It is individual to be collectively forming, it is actual.

Refer to Fig. 9 and with reference to shown in Fig. 8, Figure 12 and Figure 13.In on fore-and-aft direction, the rear end face of insulation shell 60 in addition 601 be interface, and the interface is through through hole 1001 in the overall length of left and right directions.So it may be such that on front side of interface Partial through holes 1001, holding tank 150 and seal groove 610 formation one connection encapsulating space.By in the through hole 1001 Encapsulating processing is done, to realize upper row's terminal group 21 of the rear end of electric connector 100 and the junction waterproof of insulating body 10.In addition, In on fore-and-aft direction, the rear end face of the lower insulator 102 is located on front side of the interface, to cause lower row's terminal group and insulation The junction of body 10 is located in the encapsulating space.Filled when in above-mentioned through hole 1001, seal groove 610 and holding tank 150 After glue processing, the rear end face that glue surface covers lower insulator 102 can be achieved, to realize lower row's terminal group of the rear end of electric connector 100 22 with the junction waterproof of insulating body 10.So as to realize the integral waterproofing effect of the rear end of electric connector 100.

Certainly, in the utility model, because metal shell 50 is that assembling is sheathed with the periphery of insulating body 10.Outside the metal There is assembly clearance between two side plate bodies 513 of shell 50 and the both sides of insulating body 10, done in the rear end of electric connector 100 at encapsulating During reason, marine glue meeting naturally osmotic flows into above-mentioned assembly clearance to realize correspondence position waterproof.In other embodiments, also may be used What formation was connected with above-mentioned encapsulating space between two side plate bodies 513 of the metal shell 50 and the both sides of insulating body 10 is molten Glue groove structure（It is not shown）Effect is accommodated with the infiltration for increasing marine glue, the colloidal sol groove can be by the both sides concave shape of insulating body 10 Into can also have the both sides plate body 513 of metal shell through bending or the means such as thin and formed.

Refer to shown in Fig. 8, Figure 12, Figure 15 and Figure 16, the fixture 70 is provided with two and shape is identical, by metal Plate pressing and bending is made.Each fixture 70 includes being embedded in fixed plate 701 in the side plate 613 of external insulation shell 60, by fixing The side bending of plate 701 and extend the side leg 702 outside the side of side plate 613, it is further downward by the side rear end of fixed plate 701 Extend the rear leg 703 formed and the buttcover plate 704 that simultaneously bending is formed is extended by the opposite side of fixed plate 701.The buttcover plate 704 and rear leg 703 be located at the not homonymy of the rear end of fixed plate 701 respectively, the rear leg 703 and side leg 702, which are located at, to be fixed The same side of plate 701.The correspondence of buttcover plate 704 is posted by the holding part 514 of above-mentioned metal shell 50 and fixed by spot welding Conducting.

Refer to shown in Fig. 1, Fig. 3 to Fig. 7, Figure 15 and Figure 16, the system of the utility model electric connector 100 described below Journey.

Step one, upper row's terminal group 21, lower row's terminal group 22 and barricade 30 are formed by metallic plate pressing and bending.Pass through Mould tool is positioned to upper row's terminal group 21, and upper row's terminal module 110 is made by injection molding and the upper insulation is formed Body 101；Lower row's terminal group 22 and barricade 30 are positioned by another mould tool, lower row is made by injection molding Terminal module 120 simultaneously forms the lower insulator 102.

Step 2, by the upper row's terminal module 110 being made by step one and lower row's terminal module 120 in above-below direction Overlapping assembling is fixed, and forms terminal assemblies 130.The terminal assemblies 130 are positioned by another mould tool, pass through note The type of being moulded into forms the outer insulator 103, wherein in step 4, includes the die in the another mould tool to lower row's terminal The upper exposed face 1026 and lower exposed face 1027 of module 120 are in the positioning sealing of above-below direction.

Step 3, by metallic plate pressing and bending formation metalwork 40, assembling is arranged by the metalwork 40 from front to back To the periphery of hyoplastron 12 for the insulating body 10 being made by step 2, and form semi-finished product module.

Step 4, by metallic plate pressing and bending formation metal shell 50, the metal shell 50 is arranged from front to back It is assembled to outside the insulating body 10 for the semi-finished product module being made by step 3, and forms electric connector semi-finished product.

Step 5, by metallic plate pressing and bending formation fixture 70, external insulation shell 60 is made by injection molding.

Step 6, the front end of external insulation shell 60 periphery being made by being molded in the step 5 forms sealing ring 80.

Step 7, the external insulation shell 60 being made by step 6 is arranged along the longitudinal direction the electricity for being assembled to and being made by step 4 Outside connector semi-finished product, and form electric connector 100.

Step 8, carries out encapsulating processing so that electric connector 100 by the rear end of electric connector 100 that step 7 is made With water-proof function.

Above example is only unrestricted to illustrate the technical solution of the utility model, although with reference to preferred embodiment pair The utility model is described in detail, it will be understood by those within the art that, can be to technology of the present utility model Scheme is modified or equivalent substitution, without departing from the spirit and scope of technical solutions of the utility model.

Claims (10)

1. a kind of electric connector, if including insulating body, being fixed on being docked with butt-jointed electric connector in the insulating body Dry terminal and the metal shell being fixed on outside the insulating body, the insulating body and metal shell enclose jointly to be set to form one The confession butt-jointed electric connector insertion of end opening plug hole, the insulating body includes base portion and prolonged forward by base portion front end The hyoplastron to be formed is stretched, each terminal includes exposing the contact-segment outside the hyoplastron surface of insulating body, the base along insulating body Extend rear end the Butt Section outside insulating body and connect the contact-segment and Butt Section and be at least partly embedded in insulation originally in portion Linkage section in the base portion of body, it is characterised in that：The metal shell periphery is installed with external insulation shell, and the electric connector is formed There is rear end face, the rear end face of the electric connector is formed with the seaming position of external insulation shell, metal shell and insulating body The accepting groove caved inward.

2. electric connector according to claim 1, it is characterised in that：The external insulation shell is formed with rear end face, the receipts Tank includes rear end face by external insulation shell and caved inward the seal groove that is formed in the junction of external insulation shell and metal shell.

3. electric connector according to claim 1, it is characterised in that：The insulating body is formed with rear end face, the receipts Tank include from the insulating body rear end face in receiving from the junction of insulating body and metal shell to grafting concave end Groove.

4. electric connector according to claim 1, it is characterised in that：The insulating body is formed with rear end face, the receipts Tank includes the junction because of metal shell and external insulation shell by the rear end face of the insulating body and the rear end of metal shell To the holding tank of grafting concave end.

5. electric connector according to claim 1, it is characterised in that：The accepting groove is included after the metal shell Ora terminalis in metal shell and external insulation shell at least up and down holding tank from the junction of both sides to grafting concave end.

6. electric connector according to claim 1, it is characterised in that：Accepting groove ring in an integral ring-shaped groove-like Junction one week around external insulation shell rear end, metal shell rear end and insulating body rear end.

7. the electric connector according to any one in claim 1 to 6, it is characterised in that：After the insulating body End position is formed through through hole.

8. the electric connector according to any one in claim 7, it is characterised in that：It is exposed to each in the through hole The cross-sectional circumference of terminal is contained in the through hole.

9. the electric connector according to any one in claim 7, it is characterised in that：In on fore-and-aft direction, in addition absolutely The rear end face of edge shell is interface, and the interface passes through through hole in the overall length of left and right directions, and on front side of interface Throughhole portions are connected with the accepting groove.

10. the electric connector according to any one in claim 1 to 6, it is characterised in that：The terminal includes Terminal group and lower row's terminal group are arranged, the electric connector, which also includes, to be embedded in insulating body and positioned at upper row's terminal group Barricade between lower row's terminal group, the contact-segment of each terminal of upper row's terminal group and each terminal of lower row's terminal group The arrangement mode of contact-segment meets USB Type C standards.