CN212304045U - Positive reverse plug USB socket - Google Patents

Abstract

The utility model provides a positive reverse plug USB socket, includes that plug connector, cover are located metal casing and spot welding outside the plug connector are fixed in metal mounting outside the metal casing, metal casing adopts metal punching press riveting process to make, metal casing includes hollow barrel, the riveted joint line that extends in front and back direction and certainly the turn-ups of cylinder front end edge radial outside side turn over the formation, the riveted joint line is sealed through the welding realization. The application has lower manufacturing cost.

Description

Positive reverse plug USB socket

Technical Field

The present application relates to the field of electrical connectors, and more particularly, to a USB socket with a positive and negative plug.

Background

Positive reverse the inserting is supported to Type C Type USB socket, and Type C Type USB socket generally includes plug connector, cover and locates outer metal casing of plug connector and spot welding are fixed in the outer metal set casing of metal casing. The USB socket for the smart phone also puts forward more requirements on waterproof performance, the metal shell of the existing waterproof USB socket is generally made of a metal plate through stretching to form a seamless metal pipe or through a powder metallurgy process, but compared with the metal shell made through a traditional stamping riveting process, the manufacturing cost is relatively high.

SUMMERY OF THE UTILITY MODEL

Therefore, it is desirable to provide a reversible USB socket, which provides a metal shell with a low manufacturing cost and reduces the manufacturing cost.

For solving above-mentioned technical problem, this application provides a positive reverse plug USB socket, locate including plug connector, cover metal casing and spot welding outside the plug connector are fixed in metal mounting outside the metal casing, metal casing adopts metal punching press riveting process to make, metal casing includes hollow barrel, the riveted joint line that extends in the front and back direction and certainly the barrel front end is along radially turning over the turn-ups of rolling over the formation to the outside, the riveted joint line is sealed through the welding realization.

Preferably, a waterproof ring is sleeved or formed at one end, located at the flanging, of the cylinder body.

Preferably, the connector comprises a first terminal group, a second terminal group, a metal middle plate clamped between the first terminal group and the second terminal group, and an insulating body combining the first terminal group, the second terminal group and the metal middle plate into a whole.

Preferably, the insulating body comprises a base and a butt tongue plate extending forward from the base, and the barrel is sleeved on the periphery of the base.

Preferably, the front end edge of the base part is provided with a plurality of limiting grooves, and the position of the barrel corresponding to the limiting grooves is punched to form abutting convex hulls clamped into the limiting grooves.

Preferably, when the abutting convex hull is punched inwards, a through seam cannot be generated on the cylinder body.

Preferably, a clamping groove is formed in the rear end of the base, and a clamping piece clamped into the clamping groove is formed in the position, corresponding to the clamping groove, of the barrel in a tearing mode so as to limit the plug connector to move backwards.

Preferably, each of the first and second terminal sets includes a pair of ground terminals located on the lateral outer side, a pair of power terminals located between the pair of ground terminals, and two pairs of signal terminals located between the pair of power terminals, and each of the conductive terminals of the first and second terminal sets includes a contact portion whose surface is exposed on the upper surface or the lower surface of the mating tongue plate, a holding portion formed in the insulating body, and a solder tail formed by extending backward from the holding portion.

Preferably, the holding part of the ground terminal is formed with a first positioning protrusion protruding toward the power terminal side at an end close to the contact part, the holding part of the power terminal is formed with a second positioning protrusion protruding toward the ground terminal side, the first and second positioning protrusions of the first and second terminal groups are respectively offset in the front-rear direction, and the holding part of the signal terminal is formed with a third offset positioning protrusion in the vertical direction.

Preferably, a first insulator is integrally formed on the first and second terminal groups and the metal middle plate, the first insulator includes the base portion and an extension portion extending from the base portion to the contact portion, a second insulator is formed outside the extension portion, and the second insulator serves as the tongue-shaped mating portion.

The positive and negative USB socket of inserting of this application is through adopting the punching press riveting process to make metal casing, and the riveted joint seam of rethread spot welding process seal metal casing has reduced the manufacturing cost that the metal casing was made to the tradition adoption drawing process, and has shortened metal casing's length.

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.

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

FIG. 2 is an exploded perspective view of the front-to-back USB socket of the present application;

FIG. 3 is a perspective view of the plug member of the present application for positively and negatively plugging the USB socket;

FIG. 4 is a perspective view of the conductive terminals and the metal middle plate of the front-back plug USB socket of the present application;

FIG. 5 is a top view of the conductive terminals and the metal middle plate of the USB socket of the present application;

fig. 6 is a perspective view of the conductive terminals and the metal middle plate of the front-back plug USB socket according to the present application after one-step injection molding.

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.

The direction definition of the present application is shown in fig. 1, where the X direction denotes the front in the front-rear direction, the Y direction denotes the right in the left-right direction, and the Z direction denotes the upper in the vertical direction.

Referring to fig. 1 and 2, the front-back plug USB socket of the present application includes a plug connector a, a metal casing 10 sleeved outside the plug connector a, a waterproof ring 30 sleeved or formed on an outer periphery of a front end of the metal casing 10, and a metal fixing member 20 spot-welded to an outside of the metal casing 10.

The metal shell 10 is sleeved outside the connector A in a tubular structure, the metal shell 10 is manufactured by adopting a stamping riveting process, and the metal shell 10 is formed into a tubular body by bending a metal plate and then riveting the metal plate and the connector A together at a joint. The metal shell 10 comprises a cylinder 11, a riveted joint 13, a flange 12 formed by turning over the front end of the cylinder 11 radially outwards, a supporting convex hull 14 formed by punching downwards from the rear end of the cylinder 11, and a buckling piece 15 formed by tearing and bending the tail of the cylinder 11. The abutting convex hull 14 does not generate a penetrating gap on the cylinder 11 during punch forming. The riveted joint 13 is sealed by a welding process, such as spot welding, laser welding, etc., to the riveted joint 13.

The metal fixing member 20 includes a covering body 21 covering the top surface and both side surfaces of the barrel 11, a covering side surface 22, and a welding portion 23 formed by extending downward from the covering side surface 22. The cover main body 21 is fixed to the upper surface of the cylinder 11 by spot welding.

As shown in fig. 3 to fig. 6, the plug connector a includes first and second terminal groups 40a and 40b arranged in two rows in the vertical direction, a metal middle plate 50 located between the first and second terminal groups 40a and 40b, and an insulating body combining the metal middle plate 50 and the first and second terminal groups 40a and 40b into a whole. The insulator body includes a first insulator 60 and a second insulator 70.

Each of the first and second terminal groups 40a and 40b includes a pair of ground terminals 41 located on the outermost side, a pair of power terminals 42 located between the pair of ground terminals 41, and two pairs of signal terminals 43 located between the pair of power terminals 42. Each conductive terminal 40 of the first and second terminal sets 40a, 40b includes a contact portion 441 contacting with a mating connector, a holding portion 442 extending rearward from the contact portion 441 and molded in the insulative body, and a solder tail 443 extending rearward from the holding portion 442.

The metal middle plate 50 is sandwiched between the ground terminals 41 of the first and second terminal groups 40a, 40b, and the holding portions 442 of the ground terminals 41 and the power terminals 42 extend obliquely laterally outward to leave more space in the lateral direction for the holding portions 442 of the signal terminals 43. The holding portions 42 of the ground terminals 41 extend toward the power terminals 42 near one ends of the contact portions 441 to form first positioning protrusions 451 that are offset in the front-rear direction. A second positioning protrusion 452 extending from the holding portion of the power terminal 42 toward the ground terminal 41 and shifted in the front-rear direction; the holding portion 442 of the signal terminal 43 is formed with a third positioning projection 453 at least partially offset as viewed in a vertical projection direction.

In the first and second terminal groups 40a and 40b of the present application, the pair of high frequency signal terminals located between the ground terminal 41 and the power supply terminal 42 is omitted, and the ground terminal 41, the power supply terminal 42, and the signal terminal 43 may be formed with the first, second, and third positioning protrusions 451, 452, 453 in the holding portion 442 in a staggered manner. During injection molding, the positioning pins of the injection mold can respectively clamp the first, second and third positioning protrusions 451, 452 and 453 in the vertical direction, and the positioning pins are matched with the fixing material belts to easily realize the accurate positioning of the positions of the first and second terminal groups 40a and 40b, and the metal middle plate 50 is clamped between the grounding terminals 41 of the first and second terminal groups 40a and 40b to realize the positioning, so that the manufacturing of the present application can be completed by twice injection molding.

In the first injection molding, the first insulator 60 is molded and coated outside the first and second terminal groups 40a, 40b and the middle metal plate 50. The first insulator 60 includes a base 61 wrapped outside the holding portion 442 and an extending portion 62 extending forward from the base 61 to the position of the contact portion 441. The front end edge of the base portion 61 is provided with a plurality of limiting grooves 611, and the rear end of the base portion 61 is provided with a plurality of clamping grooves 612. Subsequently, the second insulator 70 is injection molded again to fill positioning holes and the like resulting from positioning the first and second terminal groups 40a, 40b, whereby the second insulator 70 constitutes a mating tongue plate, and the contact portions 441 of the first and second terminal groups 40a, 40b are exposed on the upper and lower surfaces of the mating tongue plate 70, respectively.

The metal shell 10 is sleeved outside the plug connector A from front to back, the abutting convex hull 14 abuts against the limiting groove 611 to limit the plug connector A to move forwards continuously, and then the buckling piece 15 is bent to clamp the buckling piece 15 into the clamping groove 612 to limit the plug connector A to move backwards so as to position the plug connector A.

The positive and negative USB socket of this application is through adopting punching press riveting process to make metal casing 10, and the riveted joint 13 of sealed metal casing 10 of rethread spot welding process has reduced the manufacturing cost that the tradition adopted tensile process to make metal casing 10, and has shortened the length of metal casing 10.

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 (10)

1. The utility model provides a positive reverse plug USB socket, includes the plug connector, the cover is located metal casing and spot welding outside the plug connector are fixed in metal mounting outside the metal casing, its characterized in that, metal casing adopts metal punching press riveting process to make, metal casing includes hollow barrel, the riveted joint line that extends in the front and back direction and certainly the turn-ups of cylinder front end edge radial outside side turnover formation, the riveted joint line is sealed through the welding realization.

2. The positive-reverse insertion USB socket according to claim 1, wherein a waterproof ring is sleeved or molded at one end of the barrel body located at the flange.

3. The reversible USB socket of claim 1, wherein the plug connector comprises a first terminal set, a second terminal set, a metal middle plate clamped between the first terminal set and the second terminal set, and an insulating body combining the first terminal set and the metal middle plate into a whole.

4. The reversible USB socket of claim 3, wherein the housing includes a base and a tongue extending forward from the base, and the barrel is disposed around the base.

5. The positive-reverse insertion USB socket according to claim 4, wherein the front end edge of the base has a plurality of limiting grooves, and the barrel has a retaining convex hull formed by punching at a position corresponding to the limiting grooves and inserted into the limiting grooves.

6. The reversible USB socket of claim 5, wherein the retaining protrusion does not form a through seam on the barrel when the retaining protrusion is pressed inward.

7. The positive-reverse insertion USB socket according to claim 5, wherein a slot is provided at the rear end of the base, and a locking piece locked in the slot is formed by tearing the barrel at a position corresponding to the slot to limit the backward movement of the plug connector.

8. The reversible USB socket according to claim 4, wherein the first and second terminal sets each include a pair of ground terminals located laterally outside, a pair of power terminals located between the pair of ground terminals, and two pairs of signal terminals located between the pair of power terminals, and each of the conductive terminals of the first and second terminal sets includes a contact portion having a surface exposed on the upper or lower surface of the mating tongue plate, a holding portion formed in the insulative housing, and a solder tail extending rearward from the holding portion.

9. The forward-backward insertion USB socket according to claim 8, wherein the ground terminal holding portion has a first positioning protrusion protruding toward the power terminal at a side close to the contact portion, the power terminal holding portion has a second positioning protrusion protruding toward the ground terminal, the first and second positioning protrusions of the first and second terminal groups are offset in a front-rear direction, respectively, and the signal terminal holding portion has a third positioning protrusion offset in a vertical direction.

10. The front-back plug USB socket according to claim 9, wherein the first and second terminal sets and the middle metal plate are integrally formed with a first insulator, the first insulator includes a base portion and an extension portion extending from the base portion to the contact portion, the extension portion is externally formed with a second insulator, and the second insulator serves as the mating tongue.

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