CN110676616A - USB socket capable of sinking plate in forward and reverse directions - Google Patents

Abstract

A USB socket with a forward and reverse sinking plate comprises a plug connector, a metal inner shell sleeved outside the plug connector and a metal outer shell fixed outside the metal inner shell, the metal outer shell comprises an upper shell and a lower shell which are respectively fixed on the two sides of the upper surface and the lower surface of the metal inner shell, the upper shell and the lower shell respectively comprise an upper plate part and a lower plate part which are fixed on the upper side surface and the lower side surface of the metal inner shell, an upper arc part and a lower arc part which are bent from the two transverse sides of the upper plate part and the lower plate part and are coated on the two transverse sides of the metal inner shell in an extending way, an upper ear part and a lower ear part which are mutually jointed and formed by horizontally bending and extending the free ends of the upper arc part and the lower arc part, and fixing holes which are arranged on the upper ear part and the lower ear part, the height of the upper arc-shaped part is not equal to that of the lower arc-shaped part, and the USB socket is attached to a printed circuit board through the upper ear part or the lower ear part respectively to realize the design of sinking plates with different specifications; the USB socket is high in universality.

Description

USB socket capable of sinking plate in forward and reverse directions

Technical Field

The present application relates to the field of connectors, and more particularly, to a USB socket with a plate sinking in forward and reverse directions.

Background

The Type C Type USB socket is widely applied to electronic equipment such as mobile phones and the like, and is divided into an on-board Type and a sinking Type according to different application requirements, wherein the on-board Type is that the USB socket is attached to the surface of a printed circuit board, and the sinking Type sinks from the surface of the printed circuit board, so that the thickness of the USB socket is dispersed on two sides of the printed circuit board, and the whole thickness of a mainboard is reduced. Generally, a sinking plate type USB socket is only suitable for one type of electronic product, and only suitable for the sinking height of the circuit board, but not suitable for another type of electronic product.

Disclosure of Invention

Accordingly, it is desirable to provide a USB receptacle with two different heights of the sinking plate for accommodating the two types of electronic products.

For solving the technical problem, the application provides a USB socket of board is sunk in positive and negative direction, locate including plug connector, cover metal inner shell outside the plug connector and be fixed in metal outer shell outside the metal inner shell, metal outer shell is including being fixed in respectively the last casing and the lower casing of surface both sides about the metal inner shell, go up the casing and down the casing respectively including being fixed in the last board and the lower board of side about the metal inner shell, from go up the board and bend with the horizontal both sides of lower board and extend the cladding in last arc portion and lower arc portion of the horizontal both sides of metal inner shell, from go up the last ear and the lower ear and set up in of laminating each other that arc portion and lower arc portion free end level bend and extend the formation go up ear and the fixed orifices in the lower ear, go up the height of arc portion not be equal to the height of arc portion down, the USB socket passes through respectively go up ear or the lower ear laminating realize the heavy board of different specifications on printed circuit board And (5) designing.

The USB socket of this application go up the height of arc portion is less than the height of arc portion down. The lower ear portion is attached to the surface of the printed circuit board so as to realize that the USB socket is welded on the printed circuit board in a sinking plate mode. Or, the upper ear part is attached to the surface of the printed circuit board so as to realize that the USB socket is welded on the printed circuit board at the height of another sinking plate. So, make the USB socket of this application through last ear or ear respectively laminate in printed circuit board, the cooperation go up the arc portion with the different height of arc portion realizes the heavy board degree of depth of two kinds of differences down, reaches the required heavy board degree of depth requirement of different electronic equipment that same kind of USB socket is applicable to, has promoted the commonality of this application USB socket, has reduced mould development cost and production management cost.

Preferably, the plug includes a first terminal group, a middle metal plate, a first insulator integrally molding the first terminal group and the middle metal plate, a second terminal group, and a second insulator integrally molding the second terminal group and the first insulator.

Preferably, the second insulator includes a base portion, a step portion extending forward from the base portion, and a mating tongue portion extending forward from the step portion, and the first and second terminal groups include contact portions exposed to upper and lower surfaces of the mating tongue portion, respectively.

Preferably, the front end edge of the base part is provided with a front clamping groove, the rear end edge of the base part is provided with a rear clamping groove, the metal inner shell comprises an annular body, a through hole which penetrates through the annular body from front to rear and is used for being sleeved in the plug connector, and a front clamping block and a rear clamping block which are buckled in the front clamping groove and the rear clamping groove are formed by punching from the upper surface and the lower surface of the annular body.

Preferably, the upper plate portion and the lower plate portion are respectively fixed on the upper surface of the annular body by spot welding, the side surface of the annular body is of an arc-shaped structure, the upper arc-shaped portion and the lower arc-shaped portion completely cover the side surface of the annular body, and the upper ear portion and the lower ear portion are attached and fixed by spot welding.

Preferably, the fixing hole is locked to the printed circuit board by a screw.

Preferably, the first and second terminal sets further include a holding portion extending backward from the contact portion and formed in the step portion and the base portion, and solder fillets extending backward from the holding portion and extending out of the rear end of the base portion, the solder fillets of the first and second terminal sets are arranged in a row, the thickness of the solder fillets of the first and second terminal sets is uniform, and the upper and lower surfaces of the solder fillets are flush with each other respectively.

Preferably, the thickness of the first terminal group is 0.25mm, the thickness of the second terminal group is 0.2mm, and the solder legs of the first terminal group are thinned by punching so as to be consistent with the thickness of the solder legs of the second terminal group.

Preferably, the first and second terminal groups respectively include a pair of ground terminals located at the outermost side, a pair of power terminals located at the inner side of the pair of ground terminals, and a plurality of signal terminals located between the pair of power terminals, the metal middle plate includes a first and second middle plates independently disposed, the first and second middle plates are respectively located between the first terminal group and the upper and lower ground terminals of the second terminal group, and no metal middle plate exists between the upper and lower ground terminals and the signal terminals.

Preferably, the first terminal group and the metal middle plate are directly stacked together and then are subjected to a first injection molding to form the first insulator, the ground terminals of the first terminal group are respectively in electrical contact with the first middle plate and the second middle plate, a covering base is formed on one side of the first insulator, which is far away from the first terminal group, a plurality of terminal grooves are respectively formed in the front-back direction of the covering base, and the second terminal group is assembled in the terminal grooves for limiting and then is subjected to a second injection molding to form the second insulator.

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 USB socket sinking plate soldered on a printed circuit board according to the present invention;

FIG. 2 is an exploded perspective view of a metal shell according to the present application;

FIG. 3 is a perspective view of the plug member of the USB jack of the present application;

FIG. 4 is an exploded perspective view of the connector of the USB jack of the present application;

FIG. 5 is an exploded perspective view of the connector of the USB jack of the present application with the second insulator removed;

fig. 6 is a perspective view of a first terminal set, a second terminal set and a metal middle plate of the plug connector of the USB socket according to the present application;

fig. 7 is a side view of the first and second terminal sets and the middle metal plate of the connector of the USB socket according to the present invention.

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.

Referring to fig. 1, the USB socket with the forward and reverse sinking plates of the present application includes a plug a and metal shells 20 and 30 sleeved outside the plug a. The metal shell comprises a metal inner shell 20 and a metal outer shell 30 fixed outside the metal inner shell 20. The USB socket sinking plate is soldered to the printed circuit board 10. The application uses the X direction as the front, the Y direction as the right, and the Z direction as the upper.

Referring to fig. 1 to 4, the plug connector a includes a first terminal set 40, a middle metal plate 60, a first insulator 80 integrally formed by molding the first terminal set 40 and the middle metal plate 60, a second terminal set 50 assembled on a side of the first insulator 80 away from the first terminal set 40, and a second insulator 70 integrally combining the second terminal set 50 and the first insulator 80.

The second insulator 70 includes a base 71, a step 72 formed by extending forward from the base 71, and a butt tongue 73 formed by extending forward from the step 72. The front end edge of the base part 71 is provided with a front clamping groove 711, and the rear end edge of the base part 71 is provided with a rear clamping groove 712.

The metal inner shell 20 includes an annular body 21, a through hole 22 penetrating the annular body 21 in the front-rear direction, a pressing protrusion 23 protruding into the through hole 22 from the upper and lower surfaces of the annular body 21 by punching, a front engaging block 24 formed by punching from the rear end of the annular body 21 into the through hole 22 and engaged in the front engaging groove 711, and a rear engaging block 25 formed by punching from the rear end of the annular body 21 into the through hole 22 and engaged in the rear engaging groove 712.

The metal case 30 includes an upper case 32 fixed to an upper side of the annular body 21 and a lower case 31 fixed to a lower side of the annular body 21 and bonded to the upper case 32. The lower case 31 includes a lower plate portion 311 spot-welded to the lower surface of the annular body 21, a lower arc portion 312 bent from both left and right sides of the lower plate portion 311 to be attached to the outer side of the annular body 21 in the lateral direction, a lower lug portion 313 bent from a free end of the lower arc portion 312 to be horizontally extended, and a lower fixing hole 314 opened in the lower lug portion 313. The upper case 32 includes an upper plate 321 attached to the upper surface of the annular body 21, an upper arc 322 bent from both sides of the upper plate 321 and attached to the lateral outer side of the annular body 21, an upper lug 323 bent from the upper arc 322 and extending horizontally, and an upper positioning hole 324 formed in the upper lug 323. The upper arc-shaped portion 322 and the lower arc-shaped portion 312 are matched to wrap the arc-shaped side surfaces of the left side and the right side of the annular body 21, the upper ear portion 323 and the lower ear portion 313 are completely attached and are spot-welded together, and the upper fixing hole 324 and the lower fixing hole 314 are mutually corresponding to form a fixing hole.

The important point is that the height of the upper arc 322 is less than the height of the lower arc 312. The lower ear portion 313 is attached to the surface of the printed circuit board 10 to realize that the USB socket is soldered to the printed circuit board 10 in a sinking manner. Or, the upper ear 323 is attached to the surface of the printed circuit board 10 to realize that the USB socket is soldered to the printed circuit board 10 at another sinking plate height. So, make the USB socket of this application through last ear 323 or ear 313 laminate respectively down printed circuit board 10, the cooperation go up arc portion 322 with the different height of arc portion 312 realizes the heavy board degree of depth of two kinds of differences down, reaches the required heavy board degree of depth requirement of the same kind of USB socket and is applicable to different electronic equipment, has promoted the commonality of this application USB socket, has reduced mould development cost and production management cost.

Referring to fig. 4 to 7, the first and second terminal sets 40 and 50 of the connector a respectively include a contact portion 51 exposed on the upper and lower surfaces of the mating tongue, a holding portion 52 extending backward from the contact portion 51 and embedded in the step portion 72 and the base portion 71, and a solder leg 53 extending from the holding portion 52 to the base portion 71. The solder fillets 53 of the first terminal group 40 and the second terminal group 50 are arranged in a row at the rear end of the base portion 71, and the upper and lower surfaces of the row of solder fillets 53 are flush.

Each of the first and second terminal sets 40, 50 includes a pair of ground terminals 54 located at the outermost side in the lateral direction, a pair of power terminals 55 located between the pair of ground terminals 54, and a plurality of signal terminals 56 located between the pair of power terminals 55. The metal middle plate 60 includes a first middle plate 61 and a second middle plate 62 independently disposed between the first terminal group 40 and the ground terminal 54 of the second terminal group 50, lateral outer sides of the first middle plate 61 and the second middle plate 63 are respectively exposed to lateral outer sides of the butt tongue portion 73 and form a retaining concave portion 63, and a plurality of through holes 64 are further formed on the first middle plate 63 and the second middle plate 64 for plastic filling and fixing. The first and second midplanes 63, 64 are respectively located between two pairs of ground terminals 54 of the first and second terminal sets 40, 50, and there is no metal midplane 60 between two pairs of the power terminals 55 and pairs of signal terminals 56.

The thickness of the first terminal group 40 is 0.25mm, the thickness of the second terminal group 50 is 0.2mm, the ground terminal 54 of the first terminal group 40 directly contacts the first and second middle plates 61, 62, and a gap exists between the ground terminal 54 of the second terminal group 50 and the first and second middle plates 61, 62. The solder leg 53 of the first terminal group 40 is thinned by punching to have a thickness corresponding to the thickness of the solder leg 53 of the second terminal group 50, that is, 0.2 mm. So, the thickness thickening of first terminal group 40 has increased the current carrying capacity, simultaneously, with the leg 53 of first terminal group 40 attenuate and make its upper and lower surface all with the upper and lower surface parallel and level of leg 53 of second terminal group 50 can realize the heavy board design of positive and negative both sides.

In the manufacturing process, the first terminal group 40 and the metal middle plate 60 are stacked together and then subjected to a first injection molding to form the first insulator 80, when positioning is performed, the power terminals 55 and the signal terminals 56 of the first terminal group 40 are clamped and held at the upper and lower sides, the upper surfaces of the ground terminals 54 of the first terminal group 40 and the lower surfaces of the corresponding positions of the metal middle plate 60 are respectively clamped, and the lower surfaces of the ground terminals 54 are in direct contact with the upper surface of the metal middle plate 60. The first insulator 80 is formed with a cover base 81 on one side of the metal intermediate plate 60 to cover the metal intermediate plate 60 and the first terminal group 40 (power terminal 55 and signal terminal 56), and first, second, and third terminal grooves 84, 83, 82 formed on the cover base 81 in the front-rear direction, the first, second, and third terminal grooves 84, 83, 82 being used to limit the positions where the contact portion 51, the holding portion 52, and the solder leg 53 of the second terminal group 50 are joined to the holding portion 52, respectively. The second terminal groups 50 are in direct contact with the covering bases 81 of the first insulators 80, respectively.

After the second terminal set 50 is limited on the first insulator 80, the first insulator 80 and the second terminal set 50 are positioned to perform a second injection molding to form the second insulator 70.

The first terminal set 40 of the connector a of the present application is thicker than the second terminal set 50, and when the first terminal set 40 is stamped, the fillets 53 of the first terminal set 40 are thinned to be consistent with the fillets 53 of the second terminal set 50 in thickness; during the first injection molding, the first terminal group 40 and the metal middle plate 60 are directly overlapped and fixed, and then the second terminal group 50 is arranged on the first insulator 80 to perform the second injection molding, so that the injection molding of the plug connector can be completed.

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. A USB socket with a forward and reverse sinking plate comprises a plug connector, a metal inner shell sleeved outside the plug connector and a metal outer shell fixed outside the metal inner shell, the metal outer shell comprises an upper shell and a lower shell which are respectively fixed on the two sides of the upper surface and the lower surface of the metal inner shell, the upper shell and the lower shell respectively comprise an upper plate part and a lower plate part which are fixed on the upper side surface and the lower side surface of the metal inner shell, an upper arc part and a lower arc part which are bent from the two transverse sides of the upper plate part and the lower plate part and are coated on the two transverse sides of the metal inner shell in an extending way, an upper ear part and a lower ear part which are mutually jointed and formed by horizontally bending and extending the free ends of the upper arc part and the lower arc part, and fixing holes which are arranged on the upper ear part and the lower ear part, the USB socket is characterized in that the height of the upper arc-shaped part is not equal to that of the lower arc-shaped part, and the USB socket respectively passes through the upper ear part or the lower ear part to be attached to a printed circuit board to realize the design of the sinking plates with different specifications.

2. The USB socket of claim 1, wherein the plug includes a first terminal set, a middle metal plate, a first insulator integrally molding the first terminal set and the middle metal plate, a second terminal set, and a second insulator integrally molding the second terminal set and the first insulator.

3. The USB receptacle according to claim 2, wherein the second insulator includes a base portion, a step portion extending forward from the base portion, and a mating tongue portion extending forward from the step portion, and the first and second terminal groups include contact portions exposed on upper and lower surfaces of the mating tongue portion, respectively.

4. The USB socket according to claim 3, wherein the front end of the base has a front slot, the rear end of the base has a rear slot, the inner metal shell includes a ring body, a through hole extending through the ring body for being inserted into the connector, and front and rear engaging elements formed by punching from upper and lower surfaces of the ring body and engaging with the front and rear slots.

5. The USB socket according to claim 4, wherein the upper plate portion and the lower plate portion are respectively fixed to the upper surface of the annular body by spot welding, the side surface of the annular body has an arc-shaped structure, the upper arc-shaped portion and the lower arc-shaped portion completely cover the side surface of the annular body, and the upper ear portion and the lower ear portion are attached to each other and fixed by spot welding.

6. The USB socket according to claim 5, wherein the fixing hole is locked to the printed circuit board by a screw.

7. The USB socket according to any one of claims 3-6, wherein the first and second terminal sets further comprise a holding portion formed in the step portion and the base portion and solder tails extending from the holding portion to the rear end of the base portion, the solder tails of the first and second terminal sets are arranged in a row, the solder tails of the first and second terminal sets have the same thickness, and the upper and lower surfaces of the solder tails are flush with each other.

8. The USB socket according to claim 7, wherein the first terminal group has a thickness of 0.25mm, the second terminal group has a thickness of 0.2mm, and the solder fillet of the first terminal group is thinned by punching so as to be in conformity with the thickness of the solder fillet of the second terminal group.

9. The USB socket according to claim 8, wherein the first and second terminal groups include a pair of ground terminals located at the outermost side, a pair of power terminals located at the inner side of the pair of ground terminals, and a plurality of signal terminals located between the pair of power terminals, respectively, and the metal midplane includes a first and second midplane independently located between the first terminal group and the upper and lower ground terminals of the second terminal group, respectively, and no metal midplane exists between the upper and lower ground terminals and the signal terminals.

10. The USB socket according to claim 9, wherein the first terminal set is directly stacked on the metal middle plate and then injection-molded for a first time to form the first insulator, the ground terminals of the first terminal set are electrically abutted and contacted with the first and second middle plates, respectively, a cover base is formed on one side of the first insulator away from the first terminal set, a plurality of terminal grooves are formed in the front and rear directions of the cover base, respectively, and the second terminal set is assembled in the terminal grooves and then injection-molded again to form the second insulator.

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