CN214797829U

CN214797829U - USB socket

Info

Publication number: CN214797829U
Application number: CN202120795250.4U
Authority: CN
Inventors: 彭诚
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-19
Anticipated expiration: 2031-04-19

Abstract

The utility model provides a USB socket, includes plug connector and cover and locates the metal casing outside the plug connector, the plug connector includes first terminal module, first terminal module and with first terminal module and the insulating body of second terminal module immobilization as an organic whole, insulating body includes the basal portion and certainly the butt joint tongue that the basal portion upwards extended formation, second terminal module passes through first terminal module upset 180 degrees obtains, first terminal module includes first terminal group, medium plate and will first terminal group and medium plate immobilization first insulating block as an organic whole, first insulating block includes at least one reference column and at least one locating hole, when first terminal module with second terminal module combines, reference column, the locating hole of first terminal module respectively with the locating hole of second terminal module, reference column block. The method and the device can effectively reduce the manufacturing cost and improve the yield.

Description

USB socket

Technical Field

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

Background

The Type C socket generally includes two rows of mutually independent terminal sets, a middle plate disposed between the two rows of terminal sets, an insulation body holding the two rows of terminal sets and the middle plate together, and a housing sleeved outside the insulation body. The three-layer structure exists in the vertical direction, namely the upper row of terminal groups and the lower row of terminal groups and the middle plate, in the injection molding process, the injection mold cannot simultaneously fix the two rows of terminal groups and the middle plate in the upper direction and the lower direction, one-time or two-time injection molding cannot be realized, and the manufacture of a product is completed by three-time or up to four-time injection molding. Generally, the first terminal set, the metal middle plate and the second terminal set are respectively subjected to one-time injection molding, and then the molded first terminal set and the molded second terminal set are stacked and fixed to be subjected to third injection molding to complete the injection molding process, at least three sets of different injection molding molds are needed, and the mold opening cost is high. The application of the 201810915864.4 patent of the people's republic of China discloses a two-shot positive and negative plug-in USB socket, which adopts a one-to-two mode to punch and form a first terminal group and a second terminal group on two sides of a material belt respectively, then a superposed middle plate in the first terminal group and the second terminal group is subjected to injection molding to form a combination of the first terminal group and plastic and a combination of the second terminal group and plastic, and then the two combinations are superposed and subjected to injection molding again. According to the scheme, secondary injection molding can be realized, two sets of injection molds are adopted, but the first set of injection mold is equivalent to two sets of independent injection molds integrated on one set, the mold opening cost is still higher, and more waste still exists in the plastic water gap material.

SUMMERY OF THE UTILITY MODEL

Therefore, it is desirable to provide a USB socket to effectively reduce the manufacturing cost of the product.

In order to solve the technical problem, the application provides a USB socket, locate including plug connector and cover the outer metal casing of plug connector, the plug connector includes first terminal module, first terminal module and will first terminal module and the insulating body of second terminal module fixing as an organic whole, insulating body includes the basal portion and certainly the butt joint tongue that the basal portion upwards extends the formation, second terminal module passes through first terminal module upset 180 degrees obtains, first terminal module includes first terminal group, medium plate and will first terminal group and medium plate fixing first insulating block as an organic whole, first insulating block includes at least one reference column and at least one locating hole, when first terminal module with the second terminal module combines, the reference column, the locating hole of first terminal module respectively with the locating hole of second terminal module, The positioning column is clamped.

Preferably, the middle plates of the first terminal module and the second terminal module are respectively located at two lateral sides of the plug connector, and each middle plate comprises a plate body, a plurality of through holes longitudinally penetrating through the plate body, and a buckling part formed on the lateral outer side of the plate body and exposed to the lateral outer side of the insulation body.

Preferably, the positioning column includes at least one first positioning column formed by penetrating the first insulating block through the through hole, the positioning hole includes a first positioning hole formed by recessing one lateral side of the insulating block away from the middle plate, and the first positioning column and the first positioning hole of the second terminal module are respectively fastened with the first positioning hole and the first positioning column of the first terminal module.

Preferably, the positioning hole further includes a second positioning hole formed by recessing the first insulating block inside the middle plate, the positioning column further includes a second positioning column formed by protruding from a position symmetrical to the second positioning hole, and the second positioning column and the second positioning hole of the second terminal module are respectively fastened to the second positioning hole and the second positioning column of the first terminal module.

Preferably, a positioning notch is formed in the transverse outer side of the middle plate, the positioning hole further includes a third positioning hole formed by recessing the first insulating block at the positioning notch, the positioning column further includes a third positioning column formed by protruding the first insulating block and the third positioning hole at symmetrical positions, and the third positioning column and the third positioning hole of the second terminal module are respectively fastened with the third positioning hole and the third positioning column of the first terminal module.

Preferably, the outer diameter of at least one of the first positioning column, the second positioning column and the third positioning column gradually increases from a free end, and when the first terminal module and the second terminal module are stacked and reinforced, the positioning columns and the positioning holes are pressed tightly in an interference fit manner.

Preferably, the first terminal modules and the second terminal modules are identical in structure, the first terminal modules and the second terminal modules are combined together in a point-symmetric state, one of the two groups of first terminal modules is turned over by 180 degrees to form the second terminal module, and the second terminal module and the other group of first terminal modules are oppositely overlapped together and then are subjected to injection molding to form the insulation body.

Preferably, the first terminal set of the first terminal module and the middle plate are respectively arranged on two lateral sides, the first terminal set includes a ground terminal located on a first lateral side, a power terminal located on a second lateral side and close to the middle plate, and a plurality of signal terminals located between the ground terminal and the power terminal, the middle plate and the first terminal set are not overlapped in a longitudinal projection direction, and the middle plates of the first terminal module and the second terminal module are respectively located on two lateral sides of the plug connector and exposed on the lateral outer side of the insulating body.

Preferably, each conductive terminal of the first terminal group includes a contact portion exposed on the surface of each of the two longitudinal sides of the docking tongue, a holding portion extending downward from the contact portion and embedded in the insulating body, and a solder fillet extending downward from the holding portion and extending out of the insulating body and then bending in the longitudinal direction, and the upper end of the contact portion is bent to form a bent end portion embedded in the insulating body.

The first terminal module and the second terminal module of the USB socket are identical in structure and share the same set of injection molding mold, so that the manufacturing cost of a product is reduced, the generation of waste materials is reduced, the intermediate pieces in the product manufacturing process are reduced, and the manufacturing process is shortened to reduce the risk of product flow control.

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 view of a USB socket according to the present application;

FIG. 2 is an exploded perspective view of the USB socket of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a combination diagram of the first terminal group and the middle plate connecting material belt of the USB socket of the present application;

fig. 5 is a perspective view of the first terminal group and the middle plate of the USB socket according to the present application after injection molding;

fig. 6 is a perspective view of a first terminal module of the USB socket of the present application flipped 180 degrees to form a second terminal module and separated from another first terminal module;

fig. 7 is a perspective view of a first terminal module of the USB socket of the present application flipped 180 degrees to form a second terminal module and assembled with another first terminal module;

fig. 8 is a perspective view of the USB socket according to the present application after the first terminal module and the second terminal module are combined and injection molded;

FIG. 9 is a perspective view of the connector of the USB jack of the present application with a portion of the tape cut away;

fig. 10 is a perspective view of the USB socket according to the present invention after the plug-in unit is housed in the metal case.

Description of the reference numerals

Metal shell-10; an annular housing-11; a cavity-12; a hook-13; an insertion foot-14; a shell material belt-15; a plug-in unit-A; an insulator body-20; a base-21; a snap notch-211; a positioning post-212; a stopper-213; a transition-22; a docking tongue-23; a first terminal module-30; a second terminal module-40; a first insulating block-31; a block-311; a first positioning post-312; a first positioning hole-313; a second positioning post-315; a second locating hole-314; a third locating hole-316; a third positioning post-317; bump-318; a middle plate-32; a plate body-321; a through hole-322; a positioning part-323; a connecting material part-324; middle plate material belt-325; a first terminal set-33; a holding portion-331; a contact portion-332; a solder tail-333; bending the end part-334; a front tape-335; a rear material belt-334; a ground terminal-301; a power supply terminal-302; signal terminals-303.

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.

In the present application, the X direction shown in fig. 1 is the vertical direction (vertical direction), the Y direction is the left-right direction (lateral direction), and the Z direction is the front-back direction (longitudinal direction).

Referring to fig. 1 to 10, the USB socket of the present application is a vertical USB socket, and includes a plug connector a and a metal shell 10 sleeved outside the plug connector a.

The metal shell 10 comprises an annular shell 11, a clamping hook 13 and a plurality of inserting pins 14, wherein the annular shell 11 is provided with a cavity 12 which penetrates through the upper part and the lower part in an enclosing mode, the clamping hook 13 is formed by bending the front side and the rear side of the lower end of the annular shell 11 towards the cavity 12, and the inserting pins 14 are formed by extending the lower end of the annular shell 11 downwards. A plurality of metal casing 10 links together through casing material area 15, promptly at the metal sheet stamping forming during metal casing 10, casing material area 15 will be a plurality of metal casing 10 connects as a whole so that the automation mechanized operation. Specifically, the casing material belt 15 is connected to one side of the lower end edge of the annular casing 11.

The plug connector A comprises a first terminal module 30, a second terminal module 40 and an insulating body 20, wherein the first terminal module 30 and the second terminal module 40 are arranged in an up-down stacked mode, and the insulating body 20 is used for fixedly holding the first terminal module 30 and the second terminal module 40 into a whole.

The first terminal module 30 is completely identical to the second terminal module 40, and the first terminal module 30 or the second terminal module 40 is turned over by 180 degrees and then overlapped together, and is subjected to injection molding again, so that the manufacture of the connector A is completed. The first terminal module 30 and the second terminal module 40 are manufactured by an injection molding die. When the first terminal module 30 and the second terminal module 40 are in 180-degree symmetrical structures, the scheme of the application can greatly reduce the manufacturing cost and reduce the equipment occupation. And on the vertical Type C socket, can make first terminal module 30 and second terminal module 40 be 180 degrees symmetrical structure, first terminal module 30 upset 180 degrees just forms second terminal module 40.

The insulative housing 20 includes a base 21, a transition portion 22 extending upward from the base 21, and a mating tongue 23 extending upward from the transition portion 22. The base 21 is provided with a locking notch 211 at two lateral sides of the bottom, the bottom of the base 21 is protruded along the longitudinal direction to form a limiting block 213, and the bottom of the base 21 is extended downwards to form a locating post 212 inserted into the printed circuit board.

The first terminal module 30 includes a first terminal group 33, a middle plate 32, and a first insulating block 31 holding the first terminal group 33 and the middle plate 32 as one body. The first terminal set 33 includes a holding portion 331 embedded in the first insulating block 31, a contact portion 332 extending upward from the holding portion 331 and exposed on the surface of the mating tongue 23, a solder leg 333 extending downward from the holding portion 331 and outside the insulating body 20, and a bent end portion 334 bent from the free end of the contact portion 332 and embedded in the insulating body 20. The first terminal group 33 includes a ground terminal 301 on a first lateral side, a power terminal 302 on a second lateral side, and a signal terminal 303 between the ground terminal 301 and the power terminal 302. The midplane 32 is located outside of the power terminals 302 of the second lateral side.

The middle plate 32 includes a plate body 321, a plurality of through holes 322 penetrating the plate body 321 in the front and rear direction, a fastening portion 323 formed on the upper lateral outer side of the plate body 321, a connecting portion 324 formed by extending from the lower lateral outer side of the plate body 321, and a positioning notch-326 provided on the upper side of the connecting portion 324 of the plate body 321. The plurality of middle plates 32 are connected together by a middle plate material belt 325, and the middle plate material belt 325 and the plate body 321 are connected to the middle plate material belt 325 through the connecting portion 324 and the lateral outer side of the middle portion of the plate body 321.

The first insulating block 31 includes a block body 311 that holds the first terminal group 33 and the middle plate 32 as a single body. The block 311 includes at least one first positioning post 312 passing through the through hole 322 of the middle plate 32 and protruding toward the second terminal module 40, a first positioning hole 313 located on a side of the block 311 away from the middle plate 32 and corresponding to the first positioning post 312, a second positioning post 315 protruding from an inner side of the first positioning hole 313, a second positioning hole 314 opened on an inner side of the first positioning post 312 and corresponding to the second positioning post 315, a third positioning post 317 protruding from a lower end of the block 311 and away from the middle plate 32, and a third positioning hole 316 formed at a position of the positioning notch 326 of the middle plate 32.

After turning the first terminal module 30 over 180 degrees, a second terminal module 40 is formed which matches another first terminal module 30. At this time, two first terminal modules 30 are in superposition fit, at this time, the middle plates 32 of the first terminal module 30 and the second terminal module 40 are respectively arranged at two lateral sides of the plug connector a, and the first positioning column 312, the second positioning column 315 and the third positioning column 317 of the first terminal module 30 are respectively correspondingly buckled with the first positioning hole 313, the second positioning hole 314 and the third positioning hole 316 of the second terminal module 40; similarly, the first positioning column 312, the second positioning column 315, and the third positioning column 317 of the second terminal module 40 are respectively fastened to the first positioning hole 313, the second positioning hole 314, and the third positioning hole 316 of the first terminal module 30 to realize the mutual positioning of the two first terminal modules 30.

The outer diameter of the third positioning post 317 gradually decreases from the free end to the inside, and finally, the third positioning post 317 is in interference fit with the third positioning hole 316 to improve the precision, and meanwhile, the third positioning post 317 is convenient to be inserted into the third positioning hole 316. In a specific implementation, an interference fit is generated between at least one of the first positioning column 312, the second positioning column 315, and the third positioning column 317 and the positioning hole, or a plurality of interference fits may be generated simultaneously.

The solder legs 333 of the first terminal set 33 extend from the lower end of the holding portion 331 to the outside of the insulating housing 20 and then are bent vertically toward the longitudinal outside. In practical implementation, the solder leg 333 may also be bent and extended from the tail of the holding portion 331 and be parallel to the holding portion, and at this time, the mutual offset position of the solder legs of the first terminal module 30 and the second terminal module 40 needs to be designed to avoid overlapping.

And after the two first terminal modules 30 are overlapped and fixed, the second injection molding is carried out to form the insulation body 20, so that the plug connector A is obtained, and the plug connector A is sleeved in the cavity 12 of the metal shell 10. The bottom of the annular shell 11 of the metal shell 10 supports against the limiting block 213 at the bottom of the plug connector A, and simultaneously the hook 13 on the annular shell 11 is bent and clamped into the buckle notch 211 to limit the position of the plug connector A in the annular shell 11 and limit the position of the plug connector A in the up-down direction.

The middle plates of the first terminal module 30 and the second terminal module 40 are respectively arranged at two lateral sides of the connector a, and the latching portion 323 is exposed at the lateral outer side of the insulating body 20. The connecting material portion 324 of the middle plate 32 is also exposed to the lateral outside of the insulating body 20 and contacts the metal shell 10, and the connecting material portion 324 is fixed to the metal shell 10 by spot welding.

The first terminal module 30 and the second terminal module 40 of the USB socket of the present application all set up a ground terminal 301 and a power terminal 302 respectively, and will the ground terminal 301 with the power terminal 302 are arranged in respectively the horizontal both sides of the signal terminal 303, save unnecessary conductive terminals, make the terminal layout more do benefit to the manufacturing.

The first terminal module 30 and the second terminal module 40 of the USB socket are consistent in structure and share the same set of injection molding mold, so that the manufacturing cost of products is reduced, the generation of waste materials is reduced, the intermediate pieces in the product manufacturing process are reduced, and the manufacturing process is shortened to reduce the product process control risk.

Referring to fig. 4 to 10, the method for manufacturing the USB socket of the present application will be described in detail as follows:

s10, providing the first terminal set 33 connected with the material belt and the middle plate 32, and performing first injection molding to form a first terminal module;

referring to fig. 4 and 5, the bent end portions 334 of the conductive terminals of the first terminal set 33 are connected to a front tape 335, and the solder tails 333 of the conductive terminals of the first terminal set 33 are connected to a rear tape 336. The front tape 335 is formed by extending forward from the bent end 334, and the rear tape 336 is formed by vertically bending again after extending from the solder tail 333. The connection of the middle plate 32 and the middle plate tape 325 has been described in detail above, and will not be described herein.

The first terminal group 33 and the middle plate 32 are arranged on both sides in the transverse direction, and there is no overlap therebetween in the longitudinal direction. That is, at least one ground terminal and at least two high-frequency signal terminals are omitted from the first terminal group 33, and the space saved here corresponds to the projection space of the middle plate 32 in the longitudinal direction.

The specific structure of the first insulating block 31 is described in detail above, and is not described herein again.

S20, preparing two groups of first terminal modules 30 of which the front material belts 335 and the middle plate material belts 325 are cut off, and turning over 180 degrees one group of the first terminal modules 30 to serve as a second terminal module 40 to be overlapped and fixed with the other group of the first terminal modules 30;

referring to fig. 6 and 7, at this time, the first terminal module 30 turned 180 degrees is used as the second terminal module 40 and is in 180-degree symmetrical relationship with another first terminal module 30, and the first terminal module 30 and the second terminal module 40 have a snap fit relationship, such as the above-mentioned first, second and third positioning posts 312, 315, 317 and the first, second and third positioning holes 313, 314, 316 of the first terminal module 30 and the second terminal module 40 are mutually fixed and clamped.

Here, the two sets of first terminal modules 30 refer to two sets of a plurality of first point terminal modules respectively connected through the material tape 336, and the material tape 336 is pulled automatically to move so that the two sets of first terminal modules 30 opposite to each other are fixed in the injection mold in an overlapping manner.

S30, carrying out injection molding on the first terminal module 30 and the second terminal module 40 which are fixedly overlapped to form the plug connector A again;

as shown in fig. 8, the insulation body 20 is formed after the injection molding, and the insulation body 20 holds the first terminal module 30 and the second terminal module 40 together.

And S40, cutting one of the back material belts 336 connected with the plug connector A, and sleeving the plug connector A into the metal shell 10.

As shown in fig. 9 and 10, after the plug connector a is injection molded, the rear material strip 336 connected with one of the terminal modules needs to be cut first, so that the plug connector a is connected with the rear material strip 336, the metal shell 10 connected with the shell material strip 15 is provided, the plug connector a is sleeved into the cavity 12 of the metal shell 10, the hook 13 is bent at the same time to realize fastening, and then the rear material strip 336 and the shell material strip 15 are cut to complete the manufacture of the product.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A USB socket comprises a plug connector and a metal shell sleeved outside the plug connector, the plug connector comprises a first terminal module, a first terminal module and an insulating body which fixes the first terminal module and a second terminal module into a whole, the insulating body comprises a base part and a butt joint tongue part which extends upwards from the base part, characterized in that the second terminal module is obtained by turning the first terminal module by 180 degrees, the first terminal module comprises a first terminal group, a middle plate and a first insulating block which fixedly holds the first terminal group and the middle plate into a whole, the first insulating block comprises at least one positioning column and at least one positioning hole, the first terminal module is combined with the second terminal module, and the positioning column and the positioning hole of the first terminal module are respectively clamped with the positioning hole and the positioning column of the second terminal module.

2. The USB socket according to claim 1, wherein the middle plates of the first terminal module and the second terminal module are respectively located at two lateral sides of the connector, and each of the middle plates includes a plate body, a plurality of through holes formed longitudinally through the plate body, and a latching portion formed at a lateral outer side of the plate body and exposed to a lateral outer side of the insulating body.

3. The USB socket according to claim 2, wherein the positioning post comprises at least one first positioning post formed by passing the first insulating block through the through hole, the positioning hole comprises a first positioning hole formed by recessing a lateral side of the insulating block away from the middle plate, and the first positioning post and the first positioning hole of the second terminal module are respectively engaged with the first positioning hole and the first positioning post of the first terminal module.

4. The USB socket according to claim 3, wherein the positioning hole further includes a second positioning hole recessed from the first insulating block inside the middle plate, the positioning post further includes a second positioning post protruding from a position symmetrical to the first insulating block and the second positioning hole, and the second positioning post and the second positioning hole of the second terminal module are respectively engaged with the second positioning hole and the second positioning post of the first terminal module.

5. The USB socket according to claim 4, wherein the middle plate has a positioning notch at a lateral outer side thereof, the positioning hole further includes a third positioning hole formed by recessing the first insulating block at the positioning notch, the positioning post further includes a third positioning post formed by protruding from a position symmetrical to the third positioning hole of the first insulating block, and the third positioning post and the third positioning hole of the second terminal module are respectively engaged with the third positioning hole and the third positioning post of the first terminal module.

6. The USB socket according to claim 5, wherein at least one of the first, second and third positioning posts has an outer diameter that gradually increases from a free end, and when the first and second terminal modules are stacked and fixed, the positioning posts and the positioning holes are pressed in an interference fit manner.

7. The USB socket according to claim 6, wherein the first terminal module and the second terminal module are identical in structure, the first terminal module and the second terminal module are combined together in a point-symmetric state, one of the two sets of the first terminal modules is turned over by 180 degrees to form the second terminal module, and the second terminal module and the other set of the first terminal modules are stacked together in an opposite manner and then injection-molded to form the insulating body.

8. The USB socket according to claim 7, wherein the first terminal group of the first terminal module and the middle plate are arranged on two lateral sides, the first terminal group includes one ground terminal on a first lateral side, a power terminal on a second lateral side adjacent to the middle plate, and signal terminals between the ground terminal and the power terminal, the middle plate and the first terminal group do not overlap in a longitudinal projection direction, and the middle plates of the first terminal module and the second terminal module are respectively located on two lateral sides of the plug connector and exposed to a lateral outside of the insulating body.

9. The USB socket according to claim 8, wherein each of the conductive terminals of the first terminal set includes a contact portion exposed on both longitudinal side surfaces of the mating tongue, a holding portion extending downward from the contact portion and embedded in the insulating body, and a solder tail extending downward from the holding portion and extending out of the insulating body, and bent in a longitudinal direction, and the upper end of the contact portion is bent to form a bent end portion embedded in the insulating body.