CN107248637A

CN107248637A - Electric connector

Info

Publication number: CN107248637A
Application number: CN201710630273.8A
Authority: CN
Inventors: 胡兵波; 茆玉龙
Original assignee: Kunshan All Best Electronic Technology Co Ltd
Current assignee: Kunshan All Best Electronic Technology Co Ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2017-10-13
Anticipated expiration: 2037-07-28
Also published as: CN107248637B

Abstract

The present invention provides a kind of electric connector, it includes insulating body, some conducting terminals being fixed in the insulating body, the snap close piece of butt connector and the shielding casing being coated on outside the insulating body can be latched, the insulating body has the receiving space for being available for butt-joint socket connector to insert, conducting terminal includes the first end subgroup and Second terminal group set along short transverse in two rows, first end subgroup is corresponding with Second terminal group and reverse arrangement, each conducting terminal has the elastic contact arm for protruding into receiving space, it is fixed on the holding parts in the terminal groove of insulating body and is extended back from holding parts and stretch out the afterbody outside the rear end face of insulating body, in on fore-and-aft direction, the rear end face of insulating body is located in front of the rear surface of shielding casing, to form inside shielding casing and between end face and rear surface the holding tank entered for marine glue in the rear.The electric connector has good waterproof effect.

Description

Electric connector

Technical field

The present invention relates to connector technique field, more particularly to it is a kind of can just anti-plug electric connector.

Background technology

With developing rapidly for electronics industry science and technology, the volume of electronic product is even more along more and more frivolous, short and small Trend development, this also requires that the spare part size of electronic product is less and less, and connector industry is even more to stand in the breach.

Due to requiring the smaller of USB Type-C connectors of new generation, this causes, production more preferable to mechanical property requirements Product design difficulty is higher.In order to towards more frivolous, more very thin equipment, and ensure the reliability of product structure, major producers are confused Confusingly release corresponding structure design.

A kind of existing USB Type-C plug connectors, its two row for including insulating body, being fixed in insulating body Conducting terminal and the snap close piece along short transverse between two row's conducting terminals, but plug-type snap close piece and conducting terminal When being assembled into insulating body, and insulating body and shielding casing assembling when, can have assembly clearance, therefore USB The waterproof of Type-C connectors is the big problem for needing to solve in designing.

Therefore, it is necessary to provide a kind of improved electric connector to overcome above mentioned problem.

The content of the invention

It is an object of the invention to provide it is a kind of can effective waterproof electric connector.

For achieving the above object, the invention provides a kind of electric connector, it include insulating body, be fixed on it is described Some conducting terminals in insulating body, the snap close piece of butt connector and the masking being coated on outside the insulating body can be latched Housing, the insulating body has the receiving space for being available for butt-joint socket connector to insert, and the conducting terminal is included along height Direction is in the first end subgroup and Second terminal group that two rows are set, and the first end subgroup is corresponding and reverse with Second terminal group Arrangement, each conducting terminal, which has, to be protruded into the elastic contact arm of the receiving space, is fixed on the terminal of insulating body Holding parts in groove and extended back from holding parts and stretch out the afterbody outside the rear end face of insulating body, on fore-and-aft direction, The rear end face of the insulating body is located in front of the rear surface of the shielding casing, with inside the shielding casing and described The holding tank entered for marine glue is formed between rear end face and rear surface.

As a further improvement on the present invention, the front end of the afterbody forms the connected step of corresponding holding parts Portion, the stepped portions are in the holding tank.

As a further improvement on the present invention, the snap close piece have stretch out with the shielding casing it is described after The auxiliary section that surface is abutted against, the auxiliary section front end is provided with the bearing surface leant with the rear surface of shielding casing.

As a further improvement on the present invention, the insulating body has main part, is arranged in front of the main part Docking section and positioned at the main part rear and outstanding installation portion, top, the bottom surface of the installation portion are respectively arranged with An at least projection, to be formed with gap between the top of the installation portion, bottom surface upper and lower internal face corresponding with shielding casing.

As a further improvement on the present invention, the shielding casing includes frame and extended back from the frame Extension, the extension be integrally expanded outwardly from frame to be formed expand structure.

As a further improvement on the present invention, the frame is sheathed on outside the main part and docking section, the extension Portion is sheathed on the outside of the installation portion, and is had necessarily between the front end of the installation portion and the preceding internal face of the extension Clearance space.

As a further improvement on the present invention, the snap close piece is a pair be oppositely arranged, and a pair of catches part is transversely The both sides of the conducting terminal are arranged at, snap close piece described in each of which has base portion, the lock catch arm positioned at its front end, with insulating The fixed part of body secure fit and the connecting portion positioned at its rear end, the lock catch arm extend forward from the front end of the base portion, It is relatively arranged on the snap close piece in the two ends on fore-and-aft direction with the connecting portion.

As a further improvement on the present invention, the connecting portion, which has, extends backward more than the rear end face of insulating body extremely Few grounding parts and at least auxiliary section extended along short transverse, on fore-and-aft direction, the matching part is in the ground connection In front of portion.

As a further improvement on the present invention, the fixed part is set close to the connecting portion, and is had from its inner surface The corner set inside the installation portion is locked on front side of the convex portion set towards another snap close piece projection, the convex portion.

As a further improvement on the present invention, the both sides of the insulating body are respectively arranged with extend along the longitudinal direction logical Groove, the snap close piece is inserted in the corresponding groove of insulating body from back to front, and the convex portion will in the rear end of respective side groove It is sealed.

The beneficial effects of the invention are as follows：The rear portion of electric connector of the present invention, which is provided with, to be entered for marine glue and wraps up terminal tails And the holding tank of snap close piece, such waterproof effect and classification of waterproof to improve electric connector.

Brief description of the drawings

Fig. 1 is the three-dimensional assembly diagram of electric connector of the present invention；

Fig. 2 is the view at another visual angle of electric connector shown in Fig. 1；

Fig. 3 is the three-dimensional exploded view of electric connector shown in Fig. 1；

Fig. 4 is the view at another visual angle of electric connector shown in Fig. 3；

Fig. 5 is the three-dimensional assembly diagram after electric connector removes shielding casing shown in Fig. 4；

Fig. 6 is the rearview of electric connector shown in Fig. 1；

Fig. 7 to Fig. 8 is the schematic cross-sectional view of A-A along electric connector shown in Fig. 2；

Fig. 9 is the schematic cross-sectional view of B-B along electric connector shown in Fig. 2.

Embodiment

Below with reference to each embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are not The limitation present invention, structure that one of ordinary skill in the art is made according to these embodiments, method or change functionally Change and be all contained in protection scope of the present invention.

It refer to shown in Fig. 1 to Fig. 9, be the preferred embodiment of electric connector 100 of the present invention, the electric connector 100 is wrapped Include insulating body 1, some conducting terminals 2 being fixed in the insulating body 1, snap close piece 3, be coated on the insulating body 1 Outer shielding casing 4 and the circuit board being electrically connected with positioned at the rear of insulating body 1 and with conducting terminal 2（It is not shown）.

It refer to shown in Fig. 3 to Fig. 8, the insulating body 1 has main part 11, is arranged at the docking in the front of main part 11 Portion 12 and positioned at the rear of main part 11 and outstanding installation portion 13, wherein the main part 11, docking section 12 and installing Oval column is set on the whole in portion 13, and the inner side of the docking section 12 is formed with the receiving space of forwards open setting 120, so that butt-joint socket connector is inserted forward or backwards.If the roof and inside bottom wall of the insulating body 1 are respectively equipped with Dry end pilot trench 10, the rear end face 130 of the self-insulating body 1 of terminal groove 10 extend forwardly into the inner side of docking section 12 and with receipts Hold space 120 to be connected；Meanwhile, the terminal groove 10 does not run through insulating body 1 along short transverse.In the present embodiment, The terminal groove 10 corresponding with bottom wall of terminal containing slot 10 set on the roof of the insulating body 1 is corresponding along short transverse But it is not connected, namely independently of one another.

The front side of the installation portion 13 is connected with the main part 11, and its top surface and bottom surface are respectively located at the main body The corresponding top surface and outer side bottom surface in portion 11, such that the front end of the installation portion 13 exposes forward.The installation portion 13 The projection 131 of at least one projection laterally is respectively equipped with top surface and bottom surface, in the present embodiment, top surface and bottom surface are respectively equipped with Projection 131 described in a pair.The installation portion 13 is from concave shape groove 132, the groove 132 in a pair forward of end face 130 thereafter The both sides on the horizontal direction of installation portion 13 are relatively arranged on, and are set close to the side end of installation portion 13, while described recessed Groove 132 extends along short transverse and runs through the installation portion 13.

The both sides of the insulating body 1 are respectively arranged with the groove 14 that extends along the longitudinal direction and before correspondence groove 14 The scarce portion 15 of side, the rear end face 130 of the groove 14 from the installation portion 13 is extended forwardly into be connected with the scarce portion 15, and And the groove 14 is located at the correspondence position of both sides on the main part 11 and the horizontal direction of the installation portion 13, in addition, described Groove 14 is connected with the corresponding groove 132 positioned at rear side.

It refer to shown in Fig. 2 to Fig. 6, the conducting terminal 2 includes the first end subgroup set along short transverse in two rows 21 and Second terminal group 22, the first end subgroup 21 is corresponding with Second terminal group 22 and reverse arrangement.Wherein the first terminal Group 21 includes a pair of ground terminal 20a, a pair of power source terminals 20b, an inspection terminal 20c（CC1, to detect positive anti-plug Function and identification CABLE function）And a pair of signal terminal 20d, and inspection terminal 20c and a pair of signal terminal 20d are transversely Direction is located at the middle part of the first end subgroup 21, namely between a pair of power source terminals 20b, the pair of ground terminal 20a is located at outermost, and a pair of power source terminals 20b is located at the inspection terminal 20c or signal terminal 20d outside.In this implementation In example, the difference of the Second terminal group 22 and first end subgroup 21 is, Second terminal group 22 is provided with a pair of signal ends less Sub- 20d（As shown in Figure 6）.

Each conducting terminal 2, which has, to be protruded into the elastic contact arm 201 of receiving space 120, is fixed on insulating body 1 Terminal groove 10 in holding parts 202 and the afterbody 203 of insulating body 1 is extended back and stretched out from holding parts 202, it is described to connect Contact arm 201 is relatively arranged on the upper side and lower side of receiving space 120 in two rows.

In the present embodiment, the contact arm 201 is protruded into receiving space 120 up or down, and with positioned at it The contact site 2011 of free end, the contact site 2011 is towards the corresponding projection of contact arm 201 in another row, by a pair in succession Connect the tongue piece of device（It is not shown）It is held between the contact site 2011.The top or bottom of the afterbody 203 are towards relative Afterbody 203, which is protruded, forms clamping part 2031, and the clamping part 2031 is set close to the rear end of the conducting terminal 2, therefore upper and lower The opposite projection of clamping part 2031 of the afterbody 203 of two rows is with by circuit board（It is not shown）It is sandwiched therebetween.

Meanwhile, the contact site of the terminal groove 10 and the conducting terminal 2 is corresponding about 2011, to provide conducting terminal 2 The space outwards floated of contact site 2011, facilitate the grafting of butt connector.First end subgroup 21 and Second terminal group 22 Position of the contact site 2011 on insulating body 1 sets pair with respective terminal on the USB Type-C plug connectors of standard Socket part position sets identical.

In the present embodiment, each conducting terminal in first end subgroup 21 with each conducting terminal in Second terminal group 22 Split sets and constitutes conducting terminal independent of each other.In other embodiments, the ground terminal in the first end subgroup 21 20a and power supply terminal 20b holding parts 202 also can respectively with Second terminal group 22 along the corresponding conducting terminal of short transverse The one of holding parts 202 is connected, so as to constitute disjunctor terminal.

During assembling, insulating body 1 is fixed in assembling to the first end subgroup 21 from back to front respectively with Second terminal group 22 Corresponding end pilot trench 10 in.Arranged with same in terminal group the front end of contact arm 201 of the ground terminal 20a and power supply terminal 20c Inspection terminal 20d front end it is transversely concordant, and the contact of be oppositely arranged two conducting terminals 2 in two row's terminal groups Spacing between portion 2011 is identical.

The snap close piece 3 is metal material, in the present embodiment, and the snap close piece 3 is be oppositely arranged a pair, and a pair Snap close piece 3 is transversely arranged at the both sides of the conducting terminal 2, and snap close piece 3 described in each of which has base portion 31, before it The lock catch arm 32 at end, fixed part 33 and the connecting portion 34 positioned at its rear end with the interference engagement of installation portion 13 of insulating body 1.Institute The front end for stating lock catch arm 32 from the base portion 31 extends forward, and it is relatively arranged on the snap close piece 3 in front and rear with connecting portion 34 Two ends on direction.

In the present embodiment, the fixed part 33 is set close to the connecting portion 34, and with from its inner surface towards separately Convex portion 331 that the projection of one snap close piece 3 is set and from it along short transverse on the outstanding interference part 332 in both sides；It is described Convex portion 331 rolls forward and inwardly tiltedly extension, with the inside of it with the interference engagement of installation portion 13, and pass through the interference part 332 both sides in its height direction and the interference engagement of installation portion 13.

The connecting portion 34 have extend backward more than insulating body 1 rear end face 130 an at least grounding parts 341 and At least auxiliary section 342 extended along short transverse, on fore-and-aft direction, the auxiliary section 342 is located at before the grounding parts 341 Side.In the present embodiment, each snap close piece 3 is structure symmetrical above and below, and its rear end is provided with what is be oppositely arranged along short transverse Grounding parts 341 described in a pair, and its have disposed thereon respectively, lower both sides and be oppositely arranged, a pair of oppositely extending auxiliary sections 342, the front end of the auxiliary section 342 is formed with bearing surface 3421.In other embodiments, the auxiliary section 342 also can be along it He stretches out in direction, such as stretching out in transverse direction, as long as making bearing surface 3421 and the masking of the front end of auxiliary section 342 The rear surface of housing 4 is abutted against.In the present embodiment, the bearing of trend of the groove 132 and the auxiliary section 342 are prolonged Stretch direction consistent.

In addition, the auxiliary section 342 is provided with chamfering 3422 along the free terminal in short transverse, the chamfering 3422 is located at The outside of the free terminal of the auxiliary section 342, such that the orthographic projection of its lateral surface is seen in the auxiliary section 342 from back to front Inside the orthographic projection of shielding casing 4（As shown in Figure 6）, in other embodiments, the auxiliary section 342 is in short transverse Free terminal on the outside of also can not be chamfering, and any form of scarce portion is designed to, as long as making auxiliary section 342 from back to front Orthographic projection is fallen completely within inside the orthographic projection of shielding casing 4, is not out the appearance profile of the extension 42 of shielding casing 4（ That is its outer rim）It is outer, in the outer profiled insulation shell of electric connector 100（It is not shown）When do not have metal convex closure, and then cause The formation of insulation crust is more prone to and yields is higher.

When the snap close piece 3 is assembled in insulating body 1, the snap close piece 3 inserts pair of insulating body 1 from back to front Answer in groove 14, wherein the lock catch arm 32 is through corresponding groove 14 and is exposed to both sides on the horizontal direction of insulating body 1 Lack in portion 15, to carry out lock fixing with butt connector.The base portion 31 is limited in the groove 14 positioned at the main part In the part of 11 inner sides, and the fixed part 33 be contained in the groove 14 be located in the part of the inner side of the installation portion 13 and with The interference engagement of installation portion 13, wherein the front side of the convex portion 331 is locked to the corner 133 that the inside of installation portion 13 is set （As shown in Figure 9）, and sealed in the rear end of respective side groove 14.

The grounding parts 341 are exposed to the rear side of rear end face 130 of the installation portion 13, with the circuit board（It is not shown） Machinery and electric connection, as a result, snap close piece 3 can not only latch butt connector, while also having earthing effect concurrently.

The front end of the shielding casing 4 has the interface frame, mating frame mouthful of ellipse, and it is connected with the USB Type-C plugs of standard The interface frame, mating frame of device mouthful is consistent, coordinates for the positive and negative insertion with butt-joint socket connector, with the applicable use of positive anti-plug just Prompt sexual clorminance.The shielding casing 4 is the gapless structure that is drawn, it include frame 41 and from the frame 41 to The extension 42 extended afterwards, in the present embodiment, the extension 42 integrally expand outwardly to be formed from frame 41 Structure is expanded, wherein the height of the extension 42 is big compared with the height of the frame 41, and the extension 42 is in height The distance expanded outwardly on direction is big in the distance expanded outwardly on horizontal direction compared with it.

The shielding casing 4 is sheathed on the outside of the insulating body 1 from front to back, wherein the frame 41 is sheathed on Outside the main part 11 and docking section 12, the extension 42 is sheathed on the outside of the installation portion 13, and the installation portion 13 There is certain clearance space between front end and the preceding internal face of the extension 42；Meanwhile, on fore-and-aft direction, the insulation The rear end face 130 of body 1 is located at the front of rear surface 420 of the extension 42, so with the inside of extension 42 and in rear end Holding tank 421 is formed between face 130 and rear surface 420.The front end of the afterbody 203 of the conducting terminal 2 forms corresponding The connected stage portion 2032 of holding parts 202, the stage portion 2032 is located in the holding tank 421.Top, bottom due to installation portion 13 Face is respectively arranged with projection 131, thus the top of the installation portion 13, bottom surface upper and lower internal face corresponding with extension 420 it Between be also formed with gap.

The bearing surface 3421 of the front side of auxiliary section 342 of the snap close piece 3 is resisted against forward the rear surface of the extension 42 420, so that auxiliary section 342 and the rear surface of shielding casing 4 are overlapped, pass through the limit on the rear surface 420 of the shielding casing 4 Position effect, to prevent the snap close piece 3 from being inserted when inserting insulating body 1 too deep or insert not in place；In addition, described abut The overlapping mode for compressing junction on face 3421 and rear surface 420 can for it is mechanical be connected or radium-shine welding etc. just Formula is to be further ensured that effectively contacting for snap close piece 3 and shielding casing 4.

When the rear side of electric connector 100 does water-proofing treatment to it, marine glue is filled to the appearance of the inner side of extension 42 Receive in groove 421 and in groove 132, by the rear end of holding parts 202, the stage portion 2032 of afterbody 203 and the back segment of snap close piece 3 Sidepiece is wrapped up, and is realized conducting terminal 2, snap close piece 3, insulating body 1 and the sealing at the rear portion of shielding casing 4, waterproof and is strengthened its it Between reliable connection；Meanwhile, the marine glue poured into rear side penetrates into forward the top, bottom surface and extension of installation portion 13 In gap between 420 upper and lower internal face and in the clearance space of the front side of installation portion 13, to realize shielding casing 4 The waterproof of assembly clearance position corresponding with insulating body 1, improves the waterproof effect and classification of waterproof of electric connector 100.

It should be understood that, although the present specification is described in terms of embodiments, but not each embodiment only includes one Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say Bright book is as an entirety, and the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can With the other embodiment of understanding.

Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention Or change should be included in the scope of the protection.

Claims

1. a kind of electric connector, it includes insulating body, some conducting terminals being fixed in the insulating body, can latched pair The snap close piece of connecting connector and the shielding casing being coated on outside the insulating body, the insulating body, which has, is available for butt-joint socket The receiving space of connector insertion, the conducting terminal includes first end subgroup and the second end set along short transverse in two rows Subgroup, the first end subgroup is corresponding with Second terminal group and reverse arrangement, and each conducting terminal, which has, protrudes into institute State the elastic contact arm of receiving space, the holding parts being fixed in the terminal groove of insulating body and extend back and dash forward from holding parts The afterbody stretched out outside the rear end face of insulating body, it is characterised in that：In on fore-and-aft direction, the rear end face of the insulating body is located at In front of the rear surface of the shielding casing, supplied with being formed in the rear inside the shielding casing and between end face and rear surface The holding tank that marine glue enters.

2. electric connector as claimed in claim 1, it is characterised in that：The front end of the afterbody forms corresponding holding parts Connected stage portion, the stepped portions are in the holding tank.

3. electric connector as claimed in claim 1 or 2, it is characterised in that：The snap close piece have stretch out with it is described The auxiliary section that the rear surface of shielding casing is abutted against, the auxiliary section front end is provided with the rear surface phase with shielding casing Against bearing surface.

4. electric connector as claimed in claim 1 or 2, it is characterised in that：The insulating body has main part, is arranged at institute State docking section in front of main part and positioned at the main part rear and outstanding installation portion, the top of the installation portion, Bottom surface is respectively arranged with an at least projection, with the top of the installation portion, bottom surface upper and lower internal face corresponding with shielding casing it Between be formed with gap.

5. electric connector as claimed in claim 4, it is characterised in that：The shielding casing includes frame and from the framework The extension that portion extends back, the extension be integrally expanded outwardly from frame to be formed expand structure.

6. electric connector as claimed in claim 5, it is characterised in that：The frame is sheathed on the main part and docking section Outside, the extension is sheathed on the outside of the installation portion, and the front end of the installation portion and the extension preceding internal face it Between have certain clearance space.

7. electric connector as claimed in claim 6, it is characterised in that：The snap close piece is a pair be oppositely arranged, and a pair Snap close piece is transversely arranged at the both sides of the conducting terminal, and snap close piece described in each of which has base portion, positioned at its front end Lock catch arm, with the fixed part of insulating body secure fit and the connecting portion positioned at its rear end, the lock catch arm is from the base portion Front end extends forward, and it is relatively arranged on the snap close piece in the two ends on fore-and-aft direction with the connecting portion.

8. electric connector as claimed in claim 7, it is characterised in that：The connecting portion, which has, extends backward more than insulating body Rear end face an at least grounding parts and at least auxiliary section that extends along short transverse, on fore-and-aft direction, the auxiliary section In front of the grounding parts.

9. electric connector as claimed in claim 7, it is characterised in that：The fixed part is set close to the connecting portion, and tool Have to be locked to inside the installation portion on front side of the convex portion set from its inner surface towards another snap close piece projection, the convex portion and set The corner put.

10. electric connector as claimed in claim 9, it is characterised in that：The both sides of the insulating body are respectively arranged with along preceding Rear is to the groove of extension, and the snap close piece is inserted in the corresponding groove of insulating body from back to front, and the convex portion is in correspondence The rear end of side groove is sealed.