CN210576646U

CN210576646U - Positive reverse plug USB socket

Info

Publication number: CN210576646U
Application number: CN201921672038.8U
Authority: CN
Inventors: 唐敏; 杨伟
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-05-19
Anticipated expiration: 2029-10-08

Abstract

A positive and negative insertion USB socket comprises an insulating shell with a hollow part, a reinforcing piece and an insertion piece, wherein the reinforcing piece is integrally formed in the insulating shell, the insertion piece is inserted into the hollow part and is coated by the reinforcing piece and the insulating shell, the insertion piece comprises a middle plate, a first terminal group and a second terminal group which are positioned on the upper side and the lower side of the middle plate, and an insulating body which integrates the middle plate, the first terminal group and the second terminal group, the insulating body comprises a base part and a butt joint tongue part which is formed by forward extension of the base part, the reinforcing piece comprises an annular body and a welding foot which extends out of the annular body, the annular body comprises a bottom wall which is exposed out of the bottom surface of the hollow part, a resisting part is formed on the bottom wall by stamping towards the hollow part, and a position, corresponding to the resisting part, of the. This application can stably bear and come from the excessive impact force of plug avoids the socket impaired.

Description

Positive reverse plug USB socket

Technical Field

The present application relates to the field of connectors, and more particularly, to a USB socket with a front plug and a back plug.

Background

The conventional positive and negative plug USB socket generally comprises a plug connector and a metal shell sleeved on the periphery of the plug connector. With the 5G commercial use, the metal shell contacts with the metal middle frame of the mobile phone, the metal middle frame is a mobile phone antenna, and the electrical contact between the metal shell and the metal middle frame affects the mobile phone antenna signal. Some mobile phone manufacturers also require that USB sockets have waterproof properties. To solve the waterproof and antenna problems, CN107240808A discloses a waterproof USB socket, which adopts a technical solution of forming a reinforcing member in an insulating housing, wherein the reinforcing member extends outward from the insulating housing to form a solder leg, and the reinforcing member surrounds the base of the plug connector to receive external force, so as to avoid damaging the insulating housing. However, according to the technical scheme, after the plug is inserted into the socket, no gear component exists, and when the plug is excessively inserted, the plug connector of the socket and the reinforcing piece are easy to loosen.

When the outermost insulating body of the plug connector of the socket is subjected to injection molding, two glue injection ports are generally arranged on the base part and the butt joint tongue part, and when the glue injection ports are subjected to demolding, burrs protruding out of the surface are easily generated, so that the product yield is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, it is desirable to provide a USB receptacle with forward and reverse insertion that can prevent the plug from being inserted too much to shift.

In order to solve the above technical problem, the present application provides a front-back-plug USB socket, including an insulating housing having a hollow portion, a stiffener integrally formed in the insulating housing, and a plug connector inserted into the hollow portion and covered by the stiffener and the insulating housing, wherein the plug connector includes a middle plate, first and second terminal sets located on upper and lower sides of the middle plate, and an insulating body integrating the middle plate, the first and second terminals into a whole, the insulating body includes a base portion and a butt-joint tongue portion formed by extending forward from the base portion, the first and second terminal sets include contact portions exposed on upper and lower surfaces of the butt-joint tongue portion, and solder legs extending rearward from the contact portions and formed in the base portion and fixed and extending out of the insulating body, the stiffener includes an annular body and solder legs extending from the annular body, the annular body comprises a bottom wall exposed out of the bottom surface of the hollow part, a resisting part is formed on the bottom wall in a stamping mode towards the hollow part, and a position, corresponding to the resisting part, of the front end edge of the base part is provided with a blocking part accommodating groove.

The application discloses positive reverse plug USB socket passes through press forming blocking portion on the diapire of reinforcement, blocking portion is used for bearing the impact force that comes from the plug, and the rethread is first, second welding foot gives printed circuit board with external force transfer, avoids directly causing the impact and then causing the poor problem of terminal welding foot welding to the plug-in components.

Preferably, the front end edge of the abutting portion is flush with or exposed out of the front end of the blocking member accommodating groove.

Preferably, the ring body further includes a top wall disposed opposite to the bottom wall and a side wall connecting the top wall and the bottom wall, and the welding leg includes a first welding leg extending from the ring body transversely to the outer side of the insulating housing and a second welding leg extending from the rear end of the ring body to the rear end of the insulating housing.

Preferably, the second welding leg includes from roof beam portion that lateral wall rear end backward extension formed and from the participating in that roof beam portion rear end downwardly extending formed, roof beam portion lower extreme is inwards bent and is formed the hasp piece, insulator still include from afterbody that the basal portion backward extension formed, the welding leg of first, second terminal group extends to on the bottom surface of afterbody, the horizontal both sides of afterbody are equipped with the buckle groove of detaining holding hasp piece.

Preferably, the front end of the base of the insulating body forms a glue containing groove, the rear end of the glue containing groove of the base forms a closed convex ring, and the base further comprises a plurality of positioning convex strips extending forwards from the closed convex ring.

Preferably, a waterproof adhesive is injected into the adhesive accommodating groove, and the waterproof adhesive is injected from the front end of the hollow part.

Preferably, the insulating body includes a first insulator integrally molding the first terminal group, a second insulator integrally molding the second terminal group and the middle plate, and an outer insulator integrally molding the first and second insulators, and the base portion, the mating tongue portion, and the tail portion are a part of the outer insulator.

Preferably, the second insulator includes a cover main body, a positioning groove provided at a rear end of the cover main body, and a boss provided at a front end of the cover main body, a rear end of the first terminal group is confined in the positioning groove, and a part of a front end of the first terminal group is located above the boss.

Preferably, the base of the outer insulator and the butt joint tongue portion are respectively provided with a first glue injection port and a second glue injection port, and the first glue injection port and the second glue injection port are of a concave structure.

Preferably, a glue containing groove is formed at the front end of the base of the insulating body, and the first glue injection port is arranged on the glue dissolving groove.

Simultaneously, when the outer insulator of plug connector injection moulding, set up sunk structure on the injecting glue mouth, burr when avoiding the drawing of patterns protrusion surface and disturb the equipment or dock with the plug. The first and second glue inlets are respectively arranged on the superposed matching surfaces of the first and second insulators, and the first and second glue inlets are of a concave structure, so that burrs are prevented from protruding out of the outer surface during demoulding to cause that the first and second insulators cannot be tightly matched.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective assembly view of a front-to-back USB socket according to the present application;

FIG. 2 is a perspective assembly view of the present application showing the USB socket inserted in the front and back direction from another angle;

FIG. 3 is an exploded perspective view of the front-to-back USB socket of the present application;

FIG. 4 is a perspective view of a stiffener for a front-to-back USB socket according to the present application;

FIG. 5 is a perspective view of the reinforcing member of the USB socket of the present application formed in the insulating housing;

FIG. 6 is a perspective view of the plug member of the present application for positively and negatively plugging the USB socket;

FIG. 7 is a perspective view of the front-to-back USB socket of the present application with the third insulator removed;

FIG. 8 is a perspective view of a midplane of the present application that is positively and negatively plugged into a USB socket;

FIG. 9 is a combination diagram of the second terminal set and the second insulator of the front-to-back USB socket of the present application;

FIG. 10 is a combination diagram of the first terminal set and the first insulator of the positive-negative-insertion USB socket of the present application;

3 fig. 3 11 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 the 3 broken 3 line 3 a 3- 3 a 3 shown 3 in 3 fig. 31 3. 3

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 3, the front-back USB socket of the present application includes an insulating housing 20, a reinforcing member 60 integrally formed in the insulating housing 20, and a plug connector a sleeved between the reinforcing member 60 and the insulating housing 20. In the present application, the X direction shown in fig. 1 is the front, the Y direction is the horizontal right direction, and the Z direction is the vertical direction.

The connector a includes a middle plate 14, first and

second terminal sets

11,12 located at upper and lower sides of the middle plate 14, and an insulating body integrally molding the middle plate 14, the first and

second terminal sets

11, 12. The insulating body includes a first insulator 15 integrally molded with the first terminal group 11, a second insulator 16 integrally molded with the second terminal group 12 and the middle plate 14, and an outer insulator 13 integrally molded with the first and

second insulators

15 and 16.

As shown in fig. 6 and 10, the outer insulating body 13 includes a base portion 131, a docking tongue portion 133 extending forward from the base portion 131, a step portion 132 between the base portion 131 and the docking tongue portion 133, and a tail portion 134 extending backward from the base portion 131. The first and

second terminal sets

11,12 are respectively provided with a contact portion 171 exposed on the upper and lower surfaces of the mating tongue 133, a holding portion 172 formed in the insulating body, and a solder tail 173 extending to the bottom surface of the tail 134.

The outer diameter of the base portion 131 is larger than that of the molding step portion 132. A stopper receiving groove 136 is formed at a front end edge of at least one of the upper and lower surfaces of the base 131; the butt tongue portion 133 and the base portion 131 are respectively provided with a first glue injection port 1351 and a second glue injection port 1352 on the upper surface or the lower surface, and the first glue injection port 1351 and the second glue injection port 1352 are in a concave structure, so that when burrs are generated during demolding, the burrs are located in the concave structure, and the burrs are prevented from protruding. The front end of the base 131 forms a glue containing groove 1371, the rear end of the glue containing groove 1371 of the base 131 forms a closed convex ring 1373, and the base 131 further includes a plurality of positioning convex strips 1372 formed by extending forward from the closed convex ring 1373 so as to stabilize the mutual positions of the plug connector a and the insulating housing 20. The first glue injection port 1351 is arranged in the glue containing slot 1371. The lateral sides of the bottom surface of the tail part 134 are provided with fastening grooves 1341.

As shown in fig. 6 to 11, the middle plate 14 includes a first middle plate 141 and a second middle plate 142 respectively arranged at left and right sides, and a connecting bar 146 connecting the first and

second middle plates

141, 142. The connecting bar 146 is located at the middle position between the first middle plate 141 and the second middle plate 142. The first and

second middle plates

141, 142 respectively include a fastening portion 143 disposed at a lateral outer side, and first and second through

holes

145, 144 opened at front and rear positions of the first and

second middle plates

141, 142.

The first terminal group 11 is injection molded to form the first insulator 15. The second terminal group 12 and the middle plate 14 are integrally injection molded to form the second insulator 16, and the second insulator 16 includes a covering main body 161, a positioning groove 162 disposed at the rear end of the covering main body 161, and a boss 163 disposed at the front end of the covering main body 161; the cover body 161 fills the second through hole 144, partially fills the first through hole 145, and partially fills the boss 163 above the first through hole 145. The surface of the covering main body 161 is further provided with a positioning post 164, and the first insulator 15 is provided with a positioning hole 151 corresponding to the positioning post 164. The first insulator 15 and the first terminal set 11 are stacked on the second insulator 16, at this time, the positioning post 164 is sleeved in the positioning hole 151, the holding portion 172 of the first terminal set 11 is limited in the positioning groove 162, the front end of part of the contact portion 171 of the first terminal set 11 is located above the boss 163, and the front end of the contact portion 171 is prevented from being deviated due to high-pressure plastic impact during injection molding. First,

second insulator

15, 16 are equipped with first, second respectively on the relative surface and advance

jiao kou

152, 165, first, second

advance jiao kou

152, 165 are sunken structures, when the injection moulding drawing of patterns, first, second advance jiao kou 152, a plurality of production plastic burrs of 165, the burr can not surpass first, second

advances jiao kou

152, 165's degree of depth, makes first,

second insulator

15, 16 superpose the time, can not produce the untight problem of cooperation because of the burr.

After the first and

second insulators

15 and 16 are fixed, the outer insulator 13 is formed by injection molding again, and the first and second

glue injection holes

1351 and 1352 are provided, as described above, which is not described herein again.

Referring to fig. 3 to 5 and 10, the insulating housing 20 includes a peripheral wall 21, a hollow portion 23 formed by the peripheral wall 21, and a waterproof ring mounting groove 22 formed at a front end of the peripheral wall 21.

The reinforcing member 60 includes an annular body 61, a first welding leg 63 extending from the lateral outside of the annular body 61 to the outside of the insulating housing 20, and a second welding leg 64 extending from the rear end of the annular body 61 to the rear end of the insulating housing 20.

The annular body 61 includes a bottom wall 611, a top wall 612, and a side wall 613 connecting the bottom wall 611 and the top wall 612. The annular body 61 is made by stamping a metal plate and is riveted to the top wall 612 to form an annular structure and a rivet 614. The bottom wall 611 is formed with two abutting portions 62 by upward stamping, the two abutting portions 62 are arranged in the left-right direction, and the abutting portions 62 are used for organizing national insertion of a plug and are used for receiving impact force from the plug to protect the plug connector a from loosening. The first welding leg 63 includes a first extending portion 631 bent and extended upward from both lateral sides of the front end of the annular body 61, a second extending portion 632 bent and extended outward from the first extending portion 631 in the lateral direction, and an end portion 633 bent and extended downward from the end of the second extending portion 632. The second soldering terminal 64 includes a beam portion 641 extending rearward from the rear end of the sidewall 613 and an insertion terminal 642 extending downward from the rear end of the beam portion 641. The beam portion 641 is bent inward downward to form a locking member 65 which is locked in the locking groove 1341 at the bottom of the tail portion 134 to fix the plug connector a.

The upper surface of the bottom wall 611 of the annular body 61 is exposed on the bottom surface of the hollow portion 23, and the top wall 612 is completely embedded in the peripheral wall 21 of the insulating housing 20. The blocking part 62 is accommodated in the blocking part accommodating groove 136 at the bottom of the base part 131, and the front end edge of the blocking part 62 is flush with or exposed out of the front end edge of the base part 131.

After the plug connector a is fixed in the insulating housing 20 and the reinforcing member 60, waterproof glue is injected into the glue accommodating groove 1371 at the front end of the base 131 of the outer insulator 13 from the front end of the hollow part 23 of the insulating housing 20 to seal the gap between the base 131 and the insulating housing 20 to realize the waterproof.

The application is positive and negative to insert the USB socket through punching press formation stop part 62 on the diapire 611 of reinforcement 60, stop part 62 is used for bearing the impact force that comes from the plug, and the rethread is first,

second welding foot

63, and 64 transmits external force for printed circuit board, avoids directly causing the impact and then causing the poor problem of terminal weld foot 173 welding to plug-in components A.

Meanwhile, when the outer insulator 13 is injection molded by the plug connector A, the

glue injection ports

1351 and 1352 are provided with concave structures, so that the phenomenon that burrs are protruded out of the outer surface to interfere assembly or butt joint with a plug during demolding is avoided.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A positive and negative insertion USB socket comprises an insulating shell with a hollow part, a reinforcing piece integrally formed in the insulating shell, and an insertion piece inserted in the hollow part and covered by the reinforcing piece and the insulating shell, wherein the insertion piece comprises a middle plate, a first terminal group and a second terminal group positioned on the upper side and the lower side of the middle plate, and an insulating body integrating the middle plate, the first terminal group and the second terminal group, the insulating body comprises a base part and a butt joint tongue part formed by extending from the base part in the forward direction, the first terminal group and the second terminal group comprise contact parts exposed out of the upper surface and the lower surface of the butt joint tongue part, a holding part formed in the base part by extending from the contact parts in the backward direction, and welding feet extending out of the insulating body, the reinforcing piece comprises an annular body and welding feet extending out of the annular body, the annular body comprises a bottom wall exposed out of the bottom surface of the hollow part, the bottom wall is punched towards the hollow part to form a resisting part, and a position of the front end edge of the base part corresponding to the resisting part is provided with a containing groove for a resisting part.

2. The reversible USB socket of claim 1, wherein the front edge of the blocking member is flush with or exposed from the front end of the blocking member receiving groove.

3. The positive-reverse insertion USB socket according to claim 1, wherein the ring body further includes a top wall disposed opposite to the bottom wall and a side wall connecting the top wall and the bottom wall, and the welding legs include a first welding leg extending from the ring body laterally outside the insulating housing and a second welding leg extending from the rear end of the ring body to the rear end of the insulating housing.

4. The reversible USB socket as claimed in claim 3, wherein the second solder leg includes a beam portion extending from the rear end of the side wall and a pin extending from the rear end of the beam portion, the lower end of the beam portion is bent inward to form a locking member, the housing further includes a tail portion extending from the base portion, the solder legs of the first and second terminal sets extend to the bottom surface of the tail portion, and two lateral sides of the tail portion are provided with locking grooves for locking the locking member.

5. The positive-reverse plug USB socket according to claim 1, wherein the front end of the base of the insulating housing forms a glue receiving slot, the rear end of the glue receiving slot of the base forms a sealing protrusion ring, and the base further comprises a plurality of positioning protrusions extending forward from the sealing protrusion ring.

6. The reversible USB socket as claimed in claim 5, wherein the glue receiving groove is filled with waterproof glue, and the waterproof glue is filled from the front end of the hollow portion.

7. The reversible USB socket according to claim 1, wherein the insulating body comprises a first insulator integrally formed with the first terminal set, a second insulator integrally formed with the second terminal set and a middle plate, and an outer insulator integrally formed with the first and second insulators, and the base, the docking tongue, and the tail are part of the outer insulator.

8. The reversible USB socket according to claim 7, wherein the second insulator comprises a cover body, a positioning groove formed at a rear end of the cover body, and a protrusion formed at a front end of the cover body, wherein a rear end of the first terminal group is confined in the positioning groove, and a portion of a front end of the first terminal group is located above the protrusion.

9. The reversible USB socket according to claim 7, wherein the base of the outer insulator and the docking tongue are respectively provided with a first glue injection opening and a second glue injection opening, the first glue injection opening and the second glue injection opening are recessed structures, the front end of the base of the insulator is provided with a glue accommodating groove, and the first glue injection opening is arranged on the glue accommodating groove.

10. The reversible USB socket of claim 7, wherein the first and second insulators have a first and second glue inlet on their mating surfaces, respectively, and the first and second glue inlets are recessed.